阅读说明：本技术 一种建筑起吊器用中部安全防护式连接装置 (Middle safety protection type connecting device for building crane ) 是由 杜海明 尹强国 顾硕 于 2020-06-01 设计创作，主要内容包括：本发明公开了一种建筑起吊器用中部安全防护式连接装置,包括底部安装基板。本发明用于连接起吊设备中驱动电机和钢丝卷扬轮之间的连接,能够起到最大卷扬力度的保护功能、降低起吊力度功能和紧急制动的功能,而且,该装置具有环形阵列螺旋弹簧弹性压缩式最大旋转作用力控制机构,能够利用环形阵列设置的螺旋弹簧,有效控制旋转部件之间的最大旋转能力,进而控制最大起吊力度,防止起吊超载而导致的严重事故的发生,此外,该装置具有电磁永磁体伸缩摩擦式紧急制动机构,利用电磁原理和磁极间的同性相斥异性相吸原理,实现对旋转状态的紧急制动功能,另外,该装置具有齿轮组啮合旋转力递减式控制机构,利用齿轮差原理,实现降低力度功能。(The invention discloses a middle safety protection type connecting device for a building crane, which comprises a bottom mounting base plate. The invention is used for connecting the driving motor and the steel wire hoisting wheel in the hoisting equipment, can play the functions of protecting the maximum hoisting force, reducing the hoisting force and emergently braking, and in addition, the device is provided with an annular array spiral spring elastic compression type maximum rotation action force control mechanism, can effectively control the maximum rotation capacity between rotating parts by utilizing the spiral springs arranged in an annular array, thereby controlling the maximum hoisting force and preventing the occurrence of serious accidents caused by hoisting overload, in addition, the device is provided with an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, realizes the emergency braking function in a rotating state by utilizing the electromagnetic principle and the principle that like poles repel each other and opposite poles attract each other, in addition, the device has gear train meshing revolving force decrement formula control mechanism, utilizes the poor principle of gear, realizes reducing the dynamics function.)

1. The utility model provides a middle part safety protection formula connecting device for building hoist, includes bottom mounting substrate (1), its characterized in that: the inside of bottom mounting base plate (1) is provided with a plurality of owner bolt holes (2), the last surface mounting of bottom mounting base plate (1) has first backup pad (3), second backup pad (4) and third backup pad (5), main bearing (6) are all installed on same water flat line in the inside of first backup pad (3), second backup pad (4) and third backup pad (5), install main first rotation axis (7), main second rotation axis (10) and main third rotation axis (11) respectively in main bearing (6) inner ring inside first backup pad (3), second backup pad (4) and third backup pad (5), first axle body mounting flange dish (8) and second axle body mounting flange dish (12) are installed respectively to the one end of main first rotation axis (7) and main third rotation axis (11), an annular array is installed between the axis body tip of opposition end to main first rotation axis (7) and main second rotation axis (10) The maximum rotation action force control mechanism (9) of the spring compression type of the spiral spring is arranged, a gear set meshing rotation force decreasing type control mechanism (18) is installed at the other end of the main second rotation shaft (10), a main fixing rod (19) is welded at the bottom of the gear set meshing rotation force decreasing type control mechanism (18), the bottom end of the main fixing rod (19) is installed on the upper surface of the bottom installation base plate (1) through a main connecting plate (20), a main fourth rotation shaft (14) is installed at the center of one section of the gear set meshing rotation force decreasing type control mechanism (18), a friction rotation plate (13) is installed at the end of the main fourth rotation shaft (14), the center of one end of the friction rotation plate (13) is fixedly connected with the other end of the main third rotation shaft (11), a main supporting block (15) is installed on one side, located on the friction rotation plate (13), of the upper surface of the bottom installation base plate (1), the top of the main supporting block (15) is fixed with an electromagnetic permanent magnet telescopic friction type emergency braking mechanism (17) through an auxiliary connecting plate (16).

2. The middle safety protection type connecting device for the building crane according to claim 1, wherein: the annular array spiral spring elastic compression type maximum rotation acting force control mechanism (9) comprises a main hollow shell (91) for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism, a main hollow interval (92) for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism, a rotary column (93) for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism, a semicircular groove structure (94) for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism, an auxiliary hollow interval (95) for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism, a movable plate (96) for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism, a spiral spring (97) for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism and a maximum rotation acting force control machine for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism A mechanism push rod (98); the center of the end face of the main hollow shell (91) for the elastic compression type maximum rotation action force control mechanism of the annular array spiral spring and the end part fixed connection of a main first rotating shaft (7), the center of the inside of the main hollow shell (91) for the elastic compression type maximum rotation action force control mechanism of the annular array spiral spring is the main hollow area (92) for the elastic compression type maximum rotation action force control mechanism of the annular array spiral spring, the main hollow shell (91) for the elastic compression type maximum rotation action force control mechanism of the annular array spiral spring is located, a rotating column (93) for the elastic compression type maximum rotation action force control mechanism of the annular array spiral spring is sleeved in the inside of the main hollow area (92) for the elastic compression type maximum rotation action force control mechanism of the annular array spiral spring, the inside of the main hollow shell (91) for the elastic compression type maximum rotation action force control mechanism of the annular array spiral spring is an annular An annular array coil spring elastic compression type maximum rotation force control mechanism-use movable plate (96) placed inside the array coil spring elastic compression type maximum rotation force control mechanism-use auxiliary hollow section (95) at one end face of the array coil spring elastic compression type maximum rotation force control mechanism-use main hollow section (92), an annular array coil spring elastic compression type maximum rotation force control mechanism-use coil spring (97) fixed between one ends of the array coil spring elastic compression type maximum rotation force control mechanism-use movable plates (96) in the array coil spring elastic compression type maximum rotation force control mechanism-use auxiliary hollow section (95), one end face of the movable plate (96) for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is provided with a push rod (98) for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, the push rod (98) for the annular array spiral spring elastic compression type maximum rotation action force control mechanism penetrates through the main hollow shell (91) for the annular array spiral spring compression type maximum rotation action force control mechanism and is positioned in the main hollow interval (92) for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, one end of the push rod (98) for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, which is positioned in the main hollow interval (92) for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, is of a semicircular structure, the side of the rotary column (93) for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is provided with a semicircular groove structure (94) for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, wherein the semicircular groove structure is used for placing the end part of the push rod (98) for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, and one end of the rotary column (93) for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is fixed with the end part of the main second rotary shaft (10).

3. The middle safety protection type connecting device for the building crane according to claim 2, wherein: the initial length of the coil spring (97) for the annular array coil spring elastic compression type maximum rotation action force control mechanism is larger than the length of the auxiliary hollow section (95) for the annular array coil spring elastic compression type maximum rotation action force control mechanism.

4. The middle safety protection type connecting device for the building crane according to claim 2, wherein: the structural shape of the end part of the push rod (98) for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism is consistent with the structural shape of the semicircular groove structure (94) for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism.

5. The middle safety protection type connecting device for the building crane according to claim 1, wherein: the electromagnetic permanent magnet telescopic friction type emergency braking mechanism (17) comprises a hollow shell (171) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, an iron core (172) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a coil (173) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a hollow section (174) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a permanent magnet (175) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a movable plate (176) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a movable rod (177) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a connecting plate (178) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism and an abutting friction plate (179) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism; an iron core (172) for an electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged inside one end of a hollow shell (171) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a coil (173) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged on the side face of the iron core (172) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a hollow section (174) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged inside the other end of the hollow shell (171) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a permanent magnet (175) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged inside the hollow section (174) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, and a movable plate (176) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged on one end face of the permanent magnet (175) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, the utility model discloses a flexible friction formula emergency braking mechanism of electromagnetism permanent magnet is used to the emergency braking mechanism of flexible friction formula of electromagnetism permanent magnet, the flexible friction formula of electromagnetism permanent magnet is travel bar (177) is installed at a terminal surface center of portable leaf (176) for the emergency braking mechanism of electromagnetism permanent magnet, the body of rod of flexible friction formula emergency braking mechanism of electromagnetism permanent magnet travel bar (177) runs through the tip of the flexible friction formula emergency braking mechanism of electromagnetism permanent magnet with hollow shell (171), just the flexible friction formula of electromagnetism permanent magnet is used to the emergency braking mechanism of the flexible friction formula of electromagnetism permanent magnet travel bar (177) of tip through the flexible friction formula of electromagnetism permanent magnet for the emergency braking mechanism connecting plate (178) installation electromagnetism permanent magnet for the emergency braking.

6. The middle safety protection type connecting device for the building crane according to claim 5, wherein: the control input end of the coil (173) for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is connected with the control output end of a power switch through a lead.

7. The middle safety protection type connecting device for the building crane according to claim 5, wherein: the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is characterized in that the collision friction plate (179) and the friction rotating plate (13) are positioned on a plane parallel to each other.

8. The middle safety protection type connecting device for the building crane according to claim 1, wherein: the gear set meshing rotating force decreasing type control mechanism (18) comprises a hollow shell (181) for the gear set meshing rotating force decreasing type control mechanism, a hollow structure (182) for the gear set meshing rotating force decreasing type control mechanism, a first rotating shaft (183) for the gear set meshing rotating force decreasing type control mechanism, a bearing (184) for the gear set meshing rotating force decreasing type control mechanism and a second rotating shaft (185) for the gear set meshing rotating force decreasing type control mechanism, a third rotating shaft (187) for a gear train meshing rotational force decreasing type control mechanism, a first gear (188) for the gear train meshing rotational force decreasing type control mechanism, a second gear (189) for the gear train meshing rotational force decreasing type control mechanism, a third gear (1810) for the gear train meshing rotational force decreasing type control mechanism, and a fourth gear (1811) for the gear train meshing rotational force decreasing type control mechanism; gear train meshing revolving force is provided with hollow structure (182) for revolving force decreasing type control mechanism of gear train meshing by the inside of hollow shell (181) for the reducing type control mechanism of gear train meshing, gear train meshing revolving force decreasing type control mechanism is with hollow shell (181) bottom center through gear train meshing revolving force decreasing type for control mechanism bearing (184) installation a gear train meshing revolving force decreasing type for control mechanism first rotation axis (183), gear train meshing revolving force decreasing type control mechanism is with hollow shell (181) top center through gear train meshing revolving force decreasing type for control mechanism bearing (184) installation a gear train meshing revolving force decreasing type for control mechanism third rotation axis (187), gear train meshing revolving force decreasing type for control mechanism side through gear train meshing revolving force decreasing type for control mechanism bearing (184) installation a gear train meshing revolving force decreasing type for control mechanism second rotation axis (187), gear train meshing revolving force decreasing type for control mechanism A shaft (185), a second gear (189) for the gear set meshing rotational force decreasing control mechanism and a third gear (1810) for the gear set meshing rotational force decreasing control mechanism are mounted on the shaft body of the second rotating shaft (185) for the gear set meshing rotational force decreasing control mechanism, a first gear (188) for the gear set meshing rotational force decreasing control mechanism and a fourth gear (1811) for the gear set meshing rotational force decreasing control mechanism are respectively mounted at the top end of the first rotating shaft (183) for the gear set meshing rotational force decreasing control mechanism and the bottom end of the third rotating shaft (187) for the gear set meshing rotational force decreasing control mechanism, and the first gear (188) for the gear set meshing rotational force decreasing control mechanism is meshed with the tooth structure between the second gear (189) for the gear set meshing rotational force decreasing control mechanism, the third gear (1810) for the gear set meshing rotary force decreasing type control mechanism is meshed with a tooth structure between the fourth gear (1811) for the gear set meshing rotary force decreasing type control mechanism.

9. The mid-safety connection for a construction hoist of claim 8, wherein: the structure radius of the first gear (188) reference circle for the gear set meshing rotating force decreasing type control mechanism is smaller than the structure radius of the second gear (189) reference circle for the gear set meshing rotating force decreasing type control mechanism, the structure radius of the second gear (189) reference circle for the gear set meshing rotating force decreasing type control mechanism is larger than the structure radius of the third gear (1810) reference circle for the gear set meshing rotating force decreasing type control mechanism, and the third gear (1810) for the gear set meshing rotating force decreasing type control mechanism is smaller than the structure radius of the fourth gear (1811) reference circle for the gear set meshing rotating force decreasing type control mechanism.

10. The mid-safety connection for a construction hoist of claim 8, wherein: the bottom end of the first rotating shaft (183) for the gear set meshing rotating force decreasing type control mechanism and the top end of the third rotating shaft (187) for the gear set meshing rotating force decreasing type control mechanism are fixedly connected with the end portions of the main second rotating shaft (10) and the main fourth rotating shaft (14) respectively.

Technical Field

The invention relates to the technical field of construction machinery, in particular to a middle safety protection type connecting device for a construction crane.

Background

At present, a tower crane is already taken as an indispensable part in construction machinery, and in a tower crane component, certain great potential safety hazards exist, for example, in the existing tower crane, the control capability of lifting equipment is poor, and the limitation is large.

Disclosure of Invention

The invention aims to provide a middle safety protection type connecting device for a building crane, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a middle safety protection type connecting device for a building crane comprises a bottom mounting base plate, wherein a plurality of main bolt holes are formed in the bottom mounting base plate, a first supporting plate, a second supporting plate and a third supporting plate are mounted on the upper surface of the bottom mounting base plate, main bearings are mounted in the first supporting plate, the second supporting plate and the third supporting plate on the same horizontal line, main bearing inner rings in the first supporting plate, the second supporting plate and the third supporting plate are respectively provided with a main first rotating shaft, a main second rotating shaft and a main third rotating shaft, one end of each of the main first rotating shaft and the main third rotating shaft is respectively provided with a first shaft body mounting flange and a second shaft body mounting flange, and a circular array spiral spring elastic compression type maximum rotation action control mechanism is mounted between the end parts of the main first rotating shaft and the main second rotating shaft at opposite ends, the emergency braking device is characterized in that a gear set meshing rotary force decreasing control mechanism is installed at the other end of the main second rotating shaft, a main fixing rod is welded at the bottom of the gear set meshing rotary force decreasing control mechanism, the bottom end of the main fixing rod is installed on the upper surface of a bottom installation base plate through a main connecting plate, a main fourth rotating shaft is installed at the center of a section of the gear set meshing rotary force decreasing control mechanism, a friction rotating plate is installed at the end portion of the main fourth rotating shaft, the center of one end of the friction rotating plate is fixedly connected with the other end of the main third rotating shaft, a main supporting block is installed on one side, located on the friction rotating plate, of the upper surface of the bottom installation base plate, and an electromagnetic permanent magnet telescopic friction type emergency braking mechanism is fixed at the top of the main supporting.

Further, the annular array spiral spring elastic compression type maximum rotation action force control mechanism comprises a main hollow shell for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, a main hollow section for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, a rotary column for the annular array spiral spring elastic compression type maximum rotation action force control mechanism and a semicircular groove structure for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, the annular array spiral spring elastic compression type maximum rotation action force control mechanism comprises an auxiliary hollow section, a movable plate, a spiral spring and a push rod, wherein the auxiliary hollow section is used for the annular array spiral spring elastic compression type maximum rotation action force control mechanism; the center of the end face of the main hollow shell for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is fixedly connected with the end part of a main first rotating shaft, the center of the inside of the main hollow shell for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is a main hollow interval for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, the main hollow shell for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is positioned in the main hollow interval for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, a rotary column for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is sleeved in the main hollow interval, and the inside of the main hollow shell for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is an auxiliary side for the annular array spiral spring elastic compression type maximum rotation action force control mechanism A movable plate for the circular array coil spring elastic compression type maximum rotation force control mechanism is placed inside the auxiliary hollow space for the circular array coil spring elastic compression type maximum rotation force control mechanism at one end face of the main hollow space for the circular array coil spring elastic compression type maximum rotation force control mechanism, a coil spring for the circular array coil spring elastic compression type maximum rotation force control mechanism is fixed between one ends of the movable plates for the circular array coil spring elastic compression type maximum rotation force control mechanism in the auxiliary hollow space for the circular array coil spring elastic compression type maximum rotation force control mechanism, a push rod for the circular array coil spring elastic compression type maximum rotation force control mechanism of an integrated structure with the movable plate for the circular array coil spring elastic compression type maximum rotation force control mechanism is arranged at one end face of the movable plate for the circular array coil spring elastic compression type maximum rotation force control mechanism, and the annular array helical spring elastic compression type maximum rotation action force control mechanism push rod runs through the main hollow shell and is positioned in the main hollow interval for the annular array helical spring elastic compression type maximum rotation action force control mechanism, one end of the annular array helical spring elastic compression type maximum rotation action force control mechanism push rod positioned in the main hollow interval is of a semicircular structure, the side surface of the rotary column for the annular array helical spring elastic compression type maximum rotation action force control mechanism is provided with a semicircular groove structure for the annular array helical spring elastic compression type maximum rotation action force control mechanism used for placing the end part of the annular array helical spring elastic compression type maximum rotation action force control mechanism push rod, and one end of the rotary column for the annular array spiral spring elastic compression type maximum rotation acting force control mechanism is fixed with the end part of the main second rotating shaft.

Further, the initial length of the coil spring for the annular array coil spring elastic compression type maximum rotational force control mechanism is longer than the length of the auxiliary hollow section for the annular array coil spring elastic compression type maximum rotational force control mechanism.

Further, the structural shape of the end part of the push rod for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is consistent with the structural shape of the semicircular groove structure for the annular array spiral spring elastic compression type maximum rotation action force control mechanism.

Further, the electromagnetic permanent magnet telescopic friction type emergency braking mechanism comprises a hollow shell for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, an iron core for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a coil for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a hollow section for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a permanent magnet for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a movable plate for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a movable rod for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a connecting plate for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism and an abutting friction plate for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism; the utility model provides an electromagnetic permanent magnet telescopic friction formula emergency braking mechanism is used to electromagnetic permanent magnet telescopic friction formula emergency braking mechanism's iron core of internally mounted one end of hollow shell for emergency braking mechanism of friction formula of electromagnetism permanent magnet telescopic friction formula, the coil for the electromagnetic permanent magnet telescopic friction formula emergency braking mechanism of side-mounting of the iron core for emergency braking mechanism of friction formula of electromagnetism permanent magnet telescopic friction formula, the inside of the hollow shell other end for emergency braking mechanism of friction formula of electromagnetism permanent magnet telescopic friction formula is provided with the space of the flexible friction formula emergency braking mechanism of electromagnetism permanent magnet and uses the cavity, the flexible friction formula emergency braking mechanism of an electromagnetic permanent magnet is used to the permanent magnet telescopic friction formula emergency braking mechanism of internally mounted one end face installation electromagnetism permanent magnet telescopic friction formula emergency braking mechanism of permanent magnet, the flexible friction formula emergency braking mechanism of electromagnetism permanent magnet is used to an end face installation electromagnetism permanent magnet telescopic friction formula emergency braking mechanism of permanent magnet The telescopic friction type moving rod for the emergency braking mechanism is characterized in that the moving rod body of the moving rod for the telescopic friction type electromagnetic permanent magnet emergency braking mechanism penetrates through the end part of the hollow shell for the telescopic friction type electromagnetic permanent magnet emergency braking mechanism, and the end part of the moving rod for the telescopic friction type electromagnetic permanent magnet emergency braking mechanism is provided with an electromagnetic permanent magnet telescopic friction type conflict friction plate for the emergency braking mechanism through a connecting plate for the telescopic friction type electromagnetic permanent magnet emergency braking mechanism.

Furthermore, the control input end of the coil for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is connected with the control output end of a power switch through a lead.

Furthermore, the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is characterized in that the collision friction plate and the friction rotating plate are positioned on a parallel plane.

Further, the gear set meshing rotational force decreasing type control mechanism comprises a hollow shell for the gear set meshing rotational force decreasing type control mechanism, a hollow structure for the gear set meshing rotational force decreasing type control mechanism, a first rotating shaft for the gear set meshing rotational force decreasing type control mechanism, a bearing for the gear set meshing rotational force decreasing type control mechanism, a second rotating shaft for the gear set meshing rotational force decreasing type control mechanism, a third rotating shaft for the gear set meshing rotational force decreasing type control mechanism, a first gear for the gear set meshing rotational force decreasing type control mechanism, a second gear for the gear set meshing rotational force decreasing type control mechanism, a third gear for the gear set meshing rotational force decreasing type control mechanism and a fourth gear for the gear set meshing rotational force decreasing type control mechanism; the inside of gear train meshing revolving force decreasing type hollow shell for control mechanism is provided with gear train meshing revolving force decreasing type hollow structure for control mechanism, gear train meshing revolving force decreasing type hollow shell bottom center for control mechanism is through gear train meshing revolving force decreasing type bearing installation a gear train meshing revolving force decreasing type first rotation axis for control mechanism, gear train meshing revolving force decreasing type hollow shell top center for control mechanism is through gear train meshing revolving force decreasing type bearing installation a gear train meshing revolving force decreasing type third rotation axis for control mechanism, gear train meshing revolving force decreasing type hollow shell's side is through gear train meshing revolving force decreasing type bearing installation a gear train meshing revolving force decreasing type second rotation axis for control mechanism, a second gear for the gear set engagement rotation force decreasing control mechanism and a third gear for the gear set engagement rotation force decreasing control mechanism are arranged on the shaft body of the second rotating shaft for the gear set engagement rotation force decreasing control mechanism, the top end of the first rotating shaft for the gear set meshing rotary force decreasing control mechanism and the bottom end of the third rotating shaft for the gear set meshing rotary force decreasing control mechanism are respectively provided with a first gear for the gear set meshing rotary force decreasing control mechanism and a fourth gear for the gear set meshing rotary force decreasing control mechanism, and the first gear for the gear set engagement rotation force decreasing type control mechanism is engaged with the tooth structure between the second gears for the gear set engagement rotation force decreasing type control mechanism, and the third gear for the gear set meshing rotary force decreasing type control mechanism is meshed with the tooth structure between the fourth gears for the gear set meshing rotary force decreasing type control mechanism.

Further, the structure radius of gear train meshing revolving force decreasing type control mechanism first gear reference circle is less than the structure radius of gear train meshing revolving force decreasing type control mechanism second gear reference circle, the structure radius of gear train meshing revolving force decreasing type control mechanism second gear reference circle is greater than the structure radius of gear train meshing revolving force decreasing type control mechanism third gear reference circle, gear train meshing revolving force decreasing type control mechanism third gear is less than the structure radius of gear train meshing revolving force decreasing type control mechanism fourth gear reference circle.

Furthermore, the bottom end of the first rotating shaft for the gear set meshing rotation force decreasing type control mechanism and the top end of the third rotating shaft for the gear set meshing rotation force decreasing type control mechanism are fixedly connected with the end portions of the main second rotating shaft and the main fourth rotating shaft respectively.

Compared with the prior art, the invention has the beneficial effects that: the invention is used for connecting the driving motor and the steel wire hoisting wheel in the hoisting equipment, can play the functions of protecting the maximum hoisting force, reducing the hoisting force and emergently braking, and in addition, the device is provided with an annular array spiral spring elastic compression type maximum rotation action force control mechanism, can effectively control the maximum rotation capacity between rotating parts by utilizing the spiral springs arranged in an annular array, thereby controlling the maximum hoisting force and preventing the occurrence of serious accidents caused by hoisting overload, in addition, the device is provided with an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, realizes the emergency braking function in a rotating state by utilizing the electromagnetic principle and the principle that like poles repel each other and opposite poles attract each other, in addition, the device has gear train meshing revolving force decrement formula control mechanism, utilizes the poor principle of gear, realizes reducing the dynamics function.

Drawings

FIG. 1 is a schematic view of a middle safety-protected connector for a construction hoist according to the present invention;

FIG. 2 is a schematic structural view of an elastic compression type maximum rotation force control mechanism of a ring array helical spring in a middle safety protection type connecting device for a building hoist according to the present invention;

FIG. 3 is a schematic structural diagram of an electromagnetic permanent magnet telescopic friction type emergency braking mechanism in the middle safety protection type connecting device for the building crane according to the invention;

FIG. 4 is a schematic structural diagram of a gear set engagement rotation force decreasing control mechanism in the middle safety protection type connecting device for the building crane according to the invention;

in the figure: 1, a bottom mounting base plate, 2, a main bolt hole, 3, a first support plate, 4, a second support plate, 5, a third support plate, 6, a main bearing, 7, a main first rotation shaft, 8, a first shaft mounting flange, 9, a circular array coil spring elastic compression maximum rotation force control mechanism, 91, a main hollow housing for a circular array coil spring elastic compression maximum rotation force control mechanism, 92, a main hollow space for a circular array coil spring elastic compression maximum rotation force control mechanism, 93, a rotation column for a circular array coil spring elastic compression maximum rotation force control mechanism, 94, a semicircular groove structure for a circular array coil spring elastic compression maximum rotation force control mechanism, 95, a secondary hollow space for a circular array coil spring elastic compression maximum rotation force control mechanism, 96, a movable plate for an annular array coil spring elastic compression type maximum rotation force control mechanism, 97, a coil spring for an annular array coil spring elastic compression type maximum rotation force control mechanism, 98, a push rod for an annular array coil spring elastic compression type maximum rotation force control mechanism, 10, a main second rotating shaft, 11, a main third rotating shaft, 12, a second shaft body mounting flange, 13, a friction rotating plate, 14, a main fourth rotating shaft, 15, a main support block, 16, a sub connecting plate, 17, an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, 171, a hollow housing for an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, 172, an iron core for an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, 173, a coil for an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, 174, a hollow section for an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, 175, a permanent magnet for an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, 176, a movable plate for an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, 177, a movable rod for an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, 178, a connecting plate for an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, 179, an abutting friction plate for an electromagnetic permanent magnet telescopic friction type emergency braking mechanism, 18, a gear set meshing rotational force decreasing type control mechanism, 181, a hollow housing for a gear set meshing rotational force decreasing type control mechanism, 182, a hollow structure for a gear set meshing rotational force decreasing type control mechanism, 183, a first rotating shaft for a gear set meshing rotational force decreasing type control mechanism, 184, a bearing for a gear set meshing rotational force decreasing type control mechanism, 185, a second rotating shaft for a gear set meshing rotational force decreasing type control mechanism, 186, a third rotating shaft for a gear set meshing rotational force decreasing type control mechanism, 187, a first gear 188 for a gear train meshing torque reduction type control mechanism, a second gear 189 for a gear train meshing torque reduction type control mechanism, a third gear 1810 for a gear train meshing torque reduction type control mechanism, fourth gears 19 for a gear train meshing torque reduction type control mechanism, main fixing rods 20 and main connecting plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention: the bottom mounting base plate comprises a bottom mounting base plate 1, a plurality of main bolt holes 2 are arranged in the bottom mounting base plate 1, a first supporting plate 3, a second supporting plate 4 and a third supporting plate 5 are mounted on the upper surface of the bottom mounting base plate 1, main bearings 6 are mounted in the first supporting plate 3, the second supporting plate 4 and the third supporting plate 5 on the same horizontal line, a main first rotating shaft 7, a main second rotating shaft 10 and a main third rotating shaft 11 are mounted in inner rings of the main bearings 6 in the first supporting plate 3, the second supporting plate 4 and the third supporting plate 5 respectively, a first shaft mounting flange 8 and a second shaft mounting flange 12 are mounted at one end of the main first rotating shaft 7 and one end of the main third rotating shaft 11 respectively, and a circular array spiral spring elastic compression type maximum rotation action force control mechanism 9 is mounted between shaft body end parts of opposite ends of the main first rotating shaft 7 and the main second rotating shaft 10, the other end of the main second rotating shaft 10 is provided with a gear set engagement rotation force decreasing type control mechanism 18, the bottom of the gear set meshing rotary force decreasing type control mechanism 18 is welded with a main fixing rod 19, the bottom ends of the main fixing rods 19 are mounted on the upper surface of the bottom mounting base plate 1 through main connecting plates 20, a main fourth rotating shaft 14 is installed at the center of a cross section of the gear train meshing rotational force decreasing type control mechanism 18, a friction rotating plate 13 is arranged at the end part of the main fourth rotating shaft 14, the center of one end of the friction rotating plate 13 is fixedly connected with the other end of the main third rotating shaft 11, the upper surface of the bottom mounting base plate 1 is provided with a main support block 15 at one side of the friction rotation plate 13, an electromagnetic permanent magnet telescopic friction type emergency braking mechanism 17 is fixed at the top of the main supporting block 15 through an auxiliary connecting plate 16.

Referring to fig. 2, the circular array helical spring elastic compression type maximum rotation force control mechanism 9 includes a main hollow housing 91 for the circular array helical spring elastic compression type maximum rotation force control mechanism, a main hollow section 92 for the circular array helical spring elastic compression type maximum rotation force control mechanism, a rotary column 93 for the circular array helical spring elastic compression type maximum rotation force control mechanism, a semicircular groove structure 94 for the circular array helical spring elastic compression type maximum rotation force control mechanism, a pair hollow section 95 for the annular array coil spring elastic compression type maximum rotation acting force control mechanism, a movable plate 96 for the annular array coil spring elastic compression type maximum rotation acting force control mechanism, a coil spring 97 for the annular array coil spring elastic compression type maximum rotation acting force control mechanism, and a push rod 98 for the annular array coil spring elastic compression type maximum rotation acting force control mechanism; the center of an end face of a main hollow housing 91 for the maximum rotation force control mechanism of the elastic compression type of the coil spring in the annular array and the end part of a main first rotating shaft 7 are fixedly connected, the center of the inside of the main hollow housing 91 for the maximum rotation force control mechanism of the elastic compression type of the coil spring in the annular array is a main hollow section 92 for the maximum rotation force control mechanism of the elastic compression type of the coil spring in the annular array, the main hollow housing 91 for the maximum rotation force control mechanism of the elastic compression type of the coil spring in the annular array is located inside the main hollow section 92 for the maximum rotation force control mechanism of the elastic compression type of the coil spring in the annular array, a rotating column 93 for the maximum rotation force control mechanism of the elastic compression type of the coil spring in the annular array is sleeved inside the main hollow housing 91 for the maximum rotation force control mechanism of the elastic compression type of the coil spring in A secondary hollow space 95 for the force control mechanism, a movable plate 96 for the circular array coil spring elastic compression type maximum rotation force control mechanism being disposed in the secondary hollow space 95 for the circular array coil spring elastic compression type maximum rotation force control mechanism at one end face of the primary hollow space 92 for the circular array coil spring elastic compression type maximum rotation force control mechanism, a coil spring 97 for the circular array coil spring elastic compression type maximum rotation force control mechanism being fixed in the secondary hollow space 95 for the circular array coil spring elastic compression type maximum rotation force control mechanism between one ends of the movable plates 96 for the circular array coil spring elastic compression type maximum rotation force control mechanism, one end face of the movable plate 96 for the circular array coil spring elastic compression type maximum rotation force control mechanism being provided with a circular array coil spring elastic compression type maximum rotation force control mechanism of an integral structure therewith Push rod 98 for large rotation force control mechanism, and push rod 98 for circular array coil spring elastic compression type maximum rotation force control mechanism runs through main hollow shell 91 for circular array coil spring elastic compression type maximum rotation force control mechanism and is located inside main hollow interval 92 for circular array coil spring elastic compression type maximum rotation force control mechanism, push rod 98 for circular array coil spring elastic compression type maximum rotation force control mechanism is located one end of main hollow interval 92 for circular array coil spring elastic compression type maximum rotation force control mechanism is semicircular structure, the side of rotary column 93 for circular array coil spring elastic compression type maximum rotation force control mechanism is provided with circular array coil spring elastic compression type maximum rotation force for placing push rod 98 end part for circular array coil spring elastic compression type maximum rotation force control mechanism A semicircular groove structure 94 for the force control mechanism, one end of the circular array coil spring elastic compression type maximum rotation force control mechanism rotary column 93 being fixed to the end of the main second rotation shaft 10; the initial length of the coil spring 97 for the annular array coil spring elastic compression type maximum rotational force control mechanism is longer than the length of the secondary hollow section 95 for the annular array coil spring elastic compression type maximum rotational force control mechanism; the structural shape of the end of the push rod 98 for the annular array helical spring elastic compression type maximum rotation acting force control mechanism is consistent with the structural shape of the semicircular groove structure 94 for the annular array helical spring elastic compression type maximum rotation acting force control mechanism, and the main functions are as follows: when the driving resistance is too large, the resistance is larger than the elasticity of the spiral spring 97 for the annular array spiral spring elastic compression type maximum rotation action force control mechanism, so that the spiral spring 97 for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is compressed, and under the causal action, the two rotating shafts are relatively rotated to play a protection role, so that the elasticity of the spiral spring 97 for the annular array spiral spring elastic compression type maximum rotation action force control mechanism is smaller than the rotation force of the driving motor under the maximum power.

Referring to fig. 3, the electromagnetic permanent magnet telescopic friction type emergency braking mechanism 17 includes a hollow housing 171 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, an iron core 172 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a coil 173 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a hollow section 174 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a permanent magnet 175 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a movable plate 176 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a movable rod 177 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a connecting plate 178 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, and an abutting friction plate 179 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism; an electromagnetic permanent magnet telescopic friction type iron core 172 is arranged in one end of a hollow shell 171 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a coil 173 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged on the side face of the iron core 172 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a hollow section 174 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged in the other end of the hollow shell 171 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a permanent magnet 175 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged in the hollow section 174 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a movable plate 176 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged on one end face of the permanent magnet 175 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a moving rod 177 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged at the center of one end face of a moving plate 176 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, a rod body of the moving rod 177 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism penetrates through the end part of a hollow shell 171 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism, and an abutting friction plate 179 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is arranged at the end part of the moving rod 177 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism through a connecting plate 178 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism; the control input end of the coil 173 for the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is connected with the control output end of a power switch through a lead; the electromagnetic permanent magnet telescopic friction type emergency braking mechanism is located on a plane parallel to the friction rotating plate 13 by the abutting friction plate 179, and mainly has the following functions: by utilizing the electromagnetic principle, the magnetism of the two magnetic poles can be changed by changing the direction of the current, and then the principle that like poles repel and opposite poles attract is utilized, so that the permanent magnets repel, the device can move outwards, and the braking effect is achieved.

Referring to fig. 4, the gear train meshing rotational force decreasing type control mechanism 18 includes a gear train meshing rotational force decreasing type control mechanism hollow housing 181, a gear train meshing rotational force decreasing type control mechanism hollow structure 182, a gear train meshing rotational force decreasing type control mechanism first rotational shaft 183, a gear train meshing rotational force decreasing type control mechanism bearing 184, a gear train meshing rotational force decreasing type control mechanism second rotational shaft 185, a gear train meshing rotational force decreasing type control mechanism third rotational shaft 187, a gear train meshing rotational force decreasing type control mechanism first gear 188, a gear train meshing rotational force decreasing type control mechanism second gear 189, a gear train meshing rotational force decreasing type control mechanism third gear 1810, and a gear train meshing rotational force decreasing type control mechanism fourth gear 1811; the gear train meshing rotational force decreasing type hollow housing 181 is internally provided with a gear train meshing rotational force decreasing type hollow structure 182 for control mechanism, the bottom center of the gear train meshing rotational force decreasing type hollow housing 181 for control mechanism is provided with a gear train meshing rotational force decreasing type first rotating shaft 183 through a gear train meshing rotational force decreasing type bearing 184, the top center of the gear train meshing rotational force decreasing type hollow housing 181 for control mechanism is provided with a gear train meshing rotational force decreasing type third rotating shaft 187 through a gear train meshing rotational force decreasing type bearing 184, the side surface of the gear train meshing rotational force decreasing type hollow housing 181 for control mechanism is provided with a gear train meshing rotational force decreasing type second rotating shaft 185 through a gear train meshing rotational force decreasing type bearing 184, a second gear 189 for the gear train meshing rotational force reduction type control mechanism and a third gear 1810 for the gear train meshing rotational force reduction type control mechanism are mounted on the shaft body of the second rotating shaft 185 for the gear train meshing rotational force reduction type control mechanism, the top end of the first rotating shaft 183 for the gear train meshing rotational force reduction type control mechanism and the bottom end of the third rotating shaft 187 for the gear train meshing rotational force reduction type control mechanism are respectively provided with a first gear 188 for the gear train meshing rotational force reduction type control mechanism and a fourth gear 1811 for the gear train meshing rotational force reduction type control mechanism, and the first gear 188 for the gear train meshing rotational force reduction type control mechanism is meshed with the tooth structure between the second gear 189 for the gear train meshing rotational force reduction type control mechanism, and the tooth structure between the third gear 1810 for the gear train meshing rotational force reduction type control mechanism and the fourth gear 1811 for the gear train meshing rotational force reduction type control mechanism is meshed with the tooth structure Combining; the structural radius of the reference circle of the first gear 188 for the gear train meshing rotational force decreasing type control mechanism is smaller than the structural radius of the reference circle of the second gear 189 for the gear train meshing rotational force decreasing type control mechanism, the structural radius of the reference circle of the second gear 189 for the gear train meshing rotational force decreasing type control mechanism is larger than the structural radius of the reference circle of the third gear 1810 for the gear train meshing rotational force decreasing type control mechanism, and the structural radius of the reference circle of the fourth gear 1811 for the gear train meshing rotational force decreasing type control mechanism is smaller than the structural radius of the reference circle of the third gear 1810 for the gear train meshing rotational force decreasing type control mechanism; the bottom end of the first rotating shaft 183 for the gear set engagement rotation force decreasing control mechanism and the top end of the third rotating shaft 187 for the gear set engagement rotation force decreasing control mechanism are respectively and fixedly connected with the end parts of the main second rotating shaft 10 and the main fourth rotating shaft 14, and the main functions of the gear set engagement rotation force decreasing control mechanism are as follows: the effect of reducing the driving force is realized by utilizing the gear difference.

The specific use mode is as follows: in the working process of the invention, a bottom mounting base plate 1 is mounted on a tower crane through bolts, then a first shaft mounting flange 8 and a second shaft mounting flange 12 are respectively connected with a main shaft in a driving motor and a driving shaft of a hoisting wheel, and then the power input end of an electromagnetic permanent magnet telescopic friction type emergency braking mechanism 17 is connected with a switch of a power supply, once an overload phenomenon occurs in the working process, an annular array spiral spring elastic compression type maximum rotation action force control mechanism 9 works to enable the driving motor to normally rotate, and the hoisting wheel cannot continuously drive a steel wire rope to work, so that a protection effect is achieved, when the emergency braking is needed, the power supply switch is turned on, and the electromagnetic permanent magnet telescopic friction type emergency braking mechanism 17 can generate friction on a main friction rotating plate 13, so that the friction braking effect is achieved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.