阅读说明：本技术 一种整体内拉式风标制动器 (Integral internal pulling type vane brake ) 是由 梅裕裔 朱才文 郭承嗣 于 2021-09-14 设计创作，主要内容包括：本发明涉及制动器技术领域,特别涉及一种整体内拉式风标制动器,包括磁轭、衔铁、制动盘,电机轴,所述电机轴的下侧轴身套接有齿轮套,所述齿轮套与制动盘的内缘相啮合；所述磁轭的上方安装有一整体呈U型的释放板,释放板的两支臂分别通过释放螺杆连接至衔铁,且该两支臂的悬端通过铰链可转动的布置在所述磁轭上；所述磁轭的上方还设有一编码器,所述编码器的编码器轴与所述电机轴固定连接；本发明直接省略了用于安装风标的安装板,并将风标部件直接安装在磁轭上,结构简单,制作成本低；风标电磁铁通过电磁铁安装座直接安装在磁轭上,便于装配和调整位置；通过在磁轭的上方安装编码器可以记录与风标电机相连接的塔机转臂的位置。(The invention relates to the technical field of brakes, in particular to an integral pull-in type vane brake, which comprises a magnet yoke, an armature, a brake disc and a motor shaft, wherein a gear sleeve is sleeved on a lower shaft body of the motor shaft and is meshed with the inner edge of the brake disc; a release plate which is integrally U-shaped is arranged above the magnetic yoke, two support arms of the release plate are respectively connected to the armature through release screws, and suspension ends of the two support arms are rotatably arranged on the magnetic yoke through hinges; an encoder is further arranged above the magnet yoke, and an encoder shaft of the encoder is fixedly connected with the motor shaft; the invention directly omits an installation plate for installing the vane, and the vane part is directly installed on the magnet yoke, so the structure is simple, and the manufacturing cost is low; the wind vane electromagnet is directly arranged on the magnet yoke through the electromagnet mounting seat, so that the assembly and the position adjustment are convenient; the position of the tower crane rotating arm connected with the vane motor can be recorded by installing the encoder above the magnetic yoke.)

1. An integral pull-in type wind vane brake comprises a magnetic yoke (10), an armature (20) arranged below the magnetic yoke (10), a brake disc (30) arranged below the armature (20), and a motor shaft (40) penetrating through the magnetic yoke (10), the armature (20) and the brake disc (30), wherein a gear sleeve (41) is sleeved on a lower shaft body of the motor shaft (40), the gear sleeve (41) is meshed with the inner edge of the brake disc (30),

the magnetic circuit breaker is characterized in that a release plate (11) which is integrally U-shaped is mounted above the magnetic yoke (10), two support arms of the release plate (11) are respectively connected to the armature (20) through release screws (12), and the suspension ends of the two support arms are rotatably arranged on the magnetic yoke (10) through hinges (111);

two support arms of the release plate (11) are also provided with screws (13) extending downwards, a release spring (14) is sleeved on each screw (13), and the lower end of each release spring (14) is abutted against the magnetic yoke (10);

a wind vane electromagnet (15) and a wind vane electromagnetic armature (16) matched with the wind vane electromagnet (15) are further installed on the magnet yoke (10) through an electromagnet installation seat (151), and the wind vane electromagnetic armature (16) is attracted to a position for clamping the release plate (11) when a coil outside the wind vane electromagnet (15) is electrified;

an encoder (17) is further arranged above the magnetic yoke (10), and an encoder shaft (171) of the encoder (17) is fixedly connected with the motor shaft (40).

2. The integrally-drawn weathercock brake according to claim 1, characterized in that the release screw (12) is screwed with an adjusting nut (121) and a locknut (122) on the upper side of the release plate (11), and the upper side of the release plate (11) abuts against the lower end face of the adjusting nut (121) and is locked in position by the locknut (122).

3. The integrated pull-in weathervane brake according to claim 1, characterized in that the outer edge of the magnet yoke (10) is provided with a centrally symmetrically arranged notch (18), an encoder bracket (173) is mounted at the notch (18) via a mounting block (172), and the encoder (17) is fixed on the encoder bracket (173).

4. The integrated pull-in weathervane brake according to claim 1, wherein said motor shaft (40) further includes a fan (50) disposed coaxially therein for cooling said weathervane motor and said weathervane brake.

5. The integral internal pulling type wind vane brake is characterized in that the outer edge of the magnet yoke (10) is provided with two notches (19) which are arranged at intervals, a first microswitch (191) and a second microswitch (192) are respectively arranged at the two notches (19), a first bolt (21) is fixed on the armature (20) corresponding to the position of the first microswitch (191), and a second bolt (22) is fixed on the armature (20) corresponding to the position of the second microswitch (192);

when the coil of the electromagnetic brake is electrified, the armature (20) is attracted to the magnetic yoke (10) under the action of magnetic force, and the first bolt (21) is in contact with the first microswitch (191) and is used for displaying the attraction state of the brake; and when the brake disc (30) is worn to the extreme, the second bolt (22) just contacts the second microswitch (192).

6. The integral pull-in type vane brake of claim 1, further comprising a cylindrical vane cover (60) with an opening pointing downward, wherein the caliber of the lower end of the vane cover (60) is larger than the outer diameter of the upper end of the magnetic yoke (10), and the vane cover (60) is locked and fixed at the outer edge of the magnetic yoke (10) through bolts or screws after covering the upper end of the magnetic yoke (10);

the upper end of the vane cover (60) is provided with a through hole which penetrates through the cover body and is used for the shaft body of the motor shaft (40) to penetrate through.

7. The integrated pull-in weathervane brake according to claim 6, characterized in that said release plate (11) is provided with a release handle (112), said release handle (112) extends outwardly of said weathervane cover (60), and a waterproof jacket (113) is provided between said release handle (112) and said weathervane cover (60) for waterproofing.

8. The integrally inward-pulling vane brake of claim 1, wherein the bottom of the brake disc (30) is provided with a mounting plate (70) for mounting to a rear end cover of the motor, and the outer edges of the magnet yoke (10) and the mounting plate (70) are provided with an annular groove (71) for sleeving the guard ring (80).

Technical Field

The invention relates to the technical field of brakes, in particular to an integral internal pulling type vane brake.

Background

The wind vane mechanism is used for realizing the function that the rotating arm of the tower crane can freely rotate along with the wind after tower crane operators leave work or when the tower crane is stopped for a long time and is not used, and preventing the tower crane from being blown down due to the fact that the windward side of the rotating arm of the tower crane is too large. Specifically, after the wind vane mechanism works, the brake is also in a release state under the condition of power failure, and the rotating arm of the tower crane can be freely adjusted to the downwind direction along with the wind, so that the windward area of the tower arm is minimum, the windward resistance is minimum, and safety accidents caused by the fact that the rotating arm of the tower crane topples over are avoided.

In the prior art, the vane brake has the defects of lacking the function of recording the position of the rotating arm of the tower crane, poor waterproof performance, and damage to the vane brake caused by scrapping of internal elements once water enters; in addition, the existing wind vane brake cannot display the working state of the brake, so that a user cannot find out faults in time to influence the use; in addition, the structure of the existing weathercock brake is complex, and the manufacturing cost is high.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an integral internal pulling type vane brake.

In order to achieve the purpose, the invention adopts the following technical scheme:

an integral internal-pulling type wind vane brake comprises a magnetic yoke, an armature arranged below the magnetic yoke, a brake disc arranged below the armature, and a motor shaft penetrating the magnetic yoke, the armature and the brake disc, wherein a gear sleeve is sleeved on a lower shaft body of the motor shaft and is meshed with the inner edge of the brake disc,

a release plate which is integrally U-shaped is arranged above the magnetic yoke, two support arms of the release plate are respectively connected to the armature through release screws, and suspension ends of the two support arms are rotatably arranged on the magnetic yoke through hinges;

two support arms of the release plate are also provided with screws extending downwards, release springs are sleeved on the screws, and the lower ends of the release springs abut against the magnet yoke;

the magnetic yoke is also provided with a wind vane electromagnet and a wind vane electromagnetic armature matched with the wind vane electromagnet through an electromagnet mounting seat, and the wind vane electromagnetic armature is attracted to the position for clamping the release plate when a coil outside the wind vane electromagnet is electrified;

an encoder is further arranged above the magnet yoke, and an encoder shaft of the encoder is fixedly connected with the motor shaft.

In a further technical scheme, the release screw is located on the upper side of the release plate and is respectively screwed with an adjusting nut and a locknut, and the upper side surface of the release plate abuts against the lower end surface of the adjusting nut and is locked by the locknut.

In a further technical scheme, the outer edge of the magnet yoke is provided with notches which are arranged in a central symmetry mode, the notches are provided with an encoder support through mounting blocks, and the encoder is fixed on the encoder support.

In a further technical scheme, a fan which is arranged on a coaxial core is further arranged on the motor shaft and used for cooling the vane motor and the vane brake.

In a further technical scheme, two concave parts which are arranged at intervals are arranged at the outer edge of the magnetic yoke, a first microswitch and a second microswitch are respectively arranged at the two concave parts, a first bolt is fixed on an armature corresponding to the position of the first microswitch, and a second bolt is fixed on an armature corresponding to the position of the second microswitch;

when the coil of the electromagnetic brake is electrified, the armature is attracted to the magnetic yoke under the action of magnetic force, and the first bolt is in contact with the first microswitch and is used for displaying the attraction state of the brake; and when the brake disc is worn to the limit state, the second bolt just contacts the second microswitch.

In a further technical scheme, the vane brake further comprises a cylindrical vane cover with an opening pointing downwards, the caliber of the lower end of the vane cover is larger than the outer diameter of the upper end of the magnetic yoke, and the vane cover is locked and fixed on the outer edge of the magnetic yoke through a bolt or a screw after being sprayed on the upper end of the magnetic yoke;

the upper end of the vane cover is provided with a through hole which penetrates through the cover body and is used for the shaft body of the motor shaft to pass through.

In a further technical scheme, a release handle is arranged on the release plate, the release handle extends outwards to form the wind vane cover, and a waterproof sleeve is arranged between the release handle and the wind vane cover and used for preventing water.

In a further technical scheme, the bottom of brake disc is equipped with the mounting panel and is used for installing to the motor rear end cover on, and all is equipped with an annular groove and is used for the cover to establish the guard ring in the outer fringe of yoke and mounting panel.

Compared with the prior art, the invention has the following technical effects:

the integral internal pulling type vane brake provided by the invention directly omits a mounting plate for mounting a vane, and directly mounts vane parts on the magnet yoke, so that the structure is simple, and the manufacturing cost is low; the wind vane electromagnet is directly arranged on the magnet yoke through the electromagnet mounting seat, so that the assembly and the position adjustment are convenient.

In addition, in the technical scheme provided by the invention, the encoder is arranged above the magnet yoke, and an encoder shaft of the encoder is fixedly connected with the motor shaft, so that the position of the tower crane rotating arm connected with the vane motor can be recorded through the encoder.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

Fig. 1 is a schematic structural view illustrating an integrated pull-in weathervane brake according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of the wind vane brake of FIG. 1, with the wind vane cover, guard ring and encoder omitted;

FIG. 3 is a schematic view of the wind vane brake of FIG. 2 from another perspective;

FIG. 4 is a bottom view of the wind vane brake of FIG. 1;

FIG. 5 is a cross-sectional view taken at section A-A of FIG. 4;

FIG. 6 is a cross-sectional view taken at section B-B of FIG. 4;

the reference numbers in the figures illustrate: 10. a magnetic yoke; 11. a release plate; 111. a hinge; 112. releasing the handle; 113. a waterproof jacket; 12. releasing the screw; 121. adjusting the nut; 122. a locknut; 13. a screw; 14. releasing the spring; 15. a vane electromagnet; 151. an electromagnet mounting base; 16. a vane electromagnetic armature; 17. an encoder; 171. an encoder shaft; 172. mounting blocks; 173. an encoder support; 18. a notch; 19. a recess; 191. a first microswitch; 192. a second microswitch; 20. an armature; 21. a first bolt; 22. a second bolt; 30. a brake disc; 40. a motor shaft; 41. a gear sleeve; 50. a fan; 60. a vane cover; 70. mounting a plate; 71. an annular groove; 80. a guard ring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As described above, with reference to fig. 1 to 6, the present invention provides an integral pull-in type wind vane brake, which includes a magnetic yoke 10, an armature 20 disposed below the magnetic yoke 10, a brake disc 30 disposed below the armature 20, and a motor shaft 40 penetrating through the magnetic yoke 10, the armature 20, and the brake disc 30, wherein a gear sleeve 41 is sleeved on a lower shaft body of the motor shaft 40, the gear sleeve 41 is engaged with an inner edge of the brake disc 30, an integral U-shaped release plate 11 is mounted above the magnetic yoke 10, two support arms of the release plate 11 are respectively connected to the armature 20 through release screws 12, and suspension ends of the two support arms are rotatably disposed on the magnetic yoke 10 through hinges 111;

two support arms of the release plate 11 are also provided with screws 13 extending downwards, the screws 13 are sleeved with release springs 14, and the lower ends of the release springs 14 are abutted against the magnetic yoke 10;

the magnetic yoke 10 is also provided with a wind vane electromagnet 15 and a wind vane electromagnetic armature 16 matched with the wind vane electromagnet 15 through an electromagnet mounting seat 151, and the wind vane electromagnetic armature 16 is attracted to the position for clamping the release plate 11 when a coil outside the wind vane electromagnet 15 is electrified;

an encoder 17 is further disposed above the magnetic yoke 10, and an encoder shaft 171 of the encoder 17 is fixedly connected to the motor shaft 40.

The weather vane brake provided by the invention is in a power-off braking and power-on releasing mode, when a coil of an electromagnetic brake is electrified, the coil of the brake generates a magnetic field, an attraction armature 20 moves towards a magnetic yoke 10, a release spring 14 is compressed to enable a brake disc 30 to be in a releasing state, a motor shaft 40 can freely rotate, and a rotating arm of a tower crane can rotate to a target position under the driving of the motor; when the electromagnetic brake is powered off, the electromagnetic force disappears, the armature 20 is pressed to the brake disc 30 under the action of the release spring 14, so that the brake disc 30 is in a braking state, the motor shaft 40 cannot rotate, the braking and position maintaining effects are achieved, and the work of braking and lifting heavy objects at fixed positions is completed.

The wind vane mechanism can realize the function that the rotating arm of the tower crane can freely rotate along with wind after tower crane operators leave work or when the tower crane is stopped for a long time and is not used. After the wind vane mechanism works, the brake is also in a release state under the condition of power failure, and the tower arm can be freely adjusted to the downwind direction along with the wind, so that the windward area of the tower arm is minimum, the windward resistance is minimum, and the tower crane is prevented from being blown down by strong wind.

The invention provides a weathercock brake, which has the specific working principle that: when the coil of the electromagnetic brake is electrified, the armature 20 is attracted to the magnetic yoke 10 under the action of magnetic force to drive the release screw 12 to move upwards, the release plate 11 rotates under the action of the release spring 14, in addition, the coil outside the wind vane electromagnet 15 is electrified, the wind vane electromagnetic armature 16 is attracted and moves inwards, then the coil of the electromagnetic brake is powered off, the release plate 11 is clamped by the wind vane electromagnetic armature 16, the armature 20 of the electromagnetic brake is in a state of being separated from the brake disc 30, and the coil outside the wind vane electromagnet 15 is powered off after the release is finished, so that the coil outside the wind vane electromagnet 15 is prevented from being burnt out due to long-term electrification; when the coil of the electromagnetic brake is electrified again, the release plate 11 is driven by the release screw 12 to rotate upwards again, the wind vane electromagnetic armature 16 clamping the release plate 11 automatically returns under the action of the electromagnet tension spring, and the brake can work normally again.

The integral internal pulling type vane brake provided by the invention directly omits a mounting plate for mounting the vane, and directly mounts the vane part on the magnetic yoke 10, so that the structure is simple and the manufacturing cost is low; the vane electromagnet 15 is directly mounted on the magnet yoke 10 through the electromagnet mounting seat 151, so that the assembly and the position adjustment are convenient.

In addition, in the technical scheme provided by the invention, the encoder 17 is arranged above the magnetic yoke 10, and the encoder shaft 171 of the encoder 17 is fixedly connected with the motor shaft 40, so that the position of the tower crane jib connected with the weathervane motor can be recorded through the encoder 17.

Further, according to the present invention, the release screw 12 is screwed with the adjusting nut 121 and the locknut 122 on the upper side of the release plate 11, and the upper side surface of the release plate 11 abuts against the lower end surface of the adjusting nut 121 and is locked in position by the locknut 122.

Through the elasticity effect of release spring 14 for release plate 11 and the adjusting nut 121 on the release screw 12 remain the contact all the time, and locknut 122 is installed in the top of adjusting nut 121, and the debugging is accomplished the back, with two nut interlocks, the position takes place the change when preventing to use.

In the present invention, as a specific installation manner of the encoder 17, the outer edge of the yoke 10 is provided with notches 18 arranged in a central symmetry manner, the encoder bracket 173 is installed at the notches 18 via the installation block 172, and the encoder 17 is fixed on the encoder bracket 173.

In the present invention, a fan 50 disposed coaxially with the motor shaft 40 is further provided for cooling the vane motor and the vane brake.

In the invention, two notches 19 are arranged at intervals on the outer edge of the magnetic yoke 10, a first microswitch 191 and a second microswitch 192 are respectively arranged at the two notches 19, a first bolt 21 is fixed on the armature 20 corresponding to the position of the first microswitch 191, and a second bolt 22 is fixed on the armature 20 corresponding to the position of the second microswitch 192;

when the coil of the electromagnetic brake is electrified, the armature 20 is attracted to the magnetic yoke 10 under the action of magnetic force, and the first bolt 21 contacts the first microswitch 191 and is used for displaying the attraction state of the brake; and when the brake disc 30 is worn to the extreme, the second bolt 22 just contacts the second microswitch 192.

In the specific installation process, the positions of the first bolt 21 and the second bolt 22 can be adjusted by nuts and then locked, when the armature 20 moves, the first bolt 21 and the second bolt 22 can be driven to synchronously move and further respectively cooperate with the first micro switch 191 and the second micro switch 192 to display the suction state of the brake or display the abrasion state of a friction plate on the brake disc 30, so that the reminding effect is realized.

In the invention, the vane brake further comprises a cylindrical vane cover 60 with an opening pointing downwards, the caliber of the lower end of the vane cover 60 is larger than the outer diameter of the upper end of the magnetic yoke 10, and the vane cover 60 is locked and fixed at the outer edge of the magnetic yoke 10 through a bolt or a screw after being covered on the upper end of the magnetic yoke 10; the upper end of the vane cover 60 is provided with a through hole penetrating through the cover body for the shaft body of the motor shaft 40 to pass through.

Specifically, yoke 10 arrange to be big end down's reducing formula structure, the lower extreme bore of weather vane cover 60 is greater than the little diameter section external diameter of yoke 10 upper end to it is identical with the external diameter of the big diameter section of yoke 10 lower extreme, thereby conveniently cover weather vane cover 60 to yoke 10 on.

Further, in the present invention, a release handle 112 is disposed on the release plate 11, the release handle 112 extends outward from the weather vane cover 60, and a waterproof jacket 113 is disposed between the release handle 112 and the weather vane cover 60 for preventing water.

In particular, the waterproof sleeve 113 is further provided with a corrugated structure to adapt to the reciprocating action of the release handle 112, i.e. to ensure the space for the reciprocating movement of the release handle 112 and ensure the waterproof effect.

In the invention, the bottom of the brake disc 30 is provided with an installation plate 70 for installing on the rear end cover of the motor, and the outer edges of the magnet yoke 10 and the installation plate 70 are provided with an annular groove 71 for sleeving a protection ring 80. The upper end of the protection ring 80 is sleeved on the annular groove 71 on the magnetic yoke 10, and the lower end of the protection ring is sleeved on the annular groove 71 on the mounting plate 70, so that the influence of rainwater and vapor on friction plates on the upper side and the lower side of the brake disc 30 is effectively prevented, and the service life of the equipment is prolonged.

The wind vane brake provided by the invention is integrally arranged on the mounting plate 70 to form an integral structure, and can be conveniently arranged on the rear end cover of the motor through the mounting plate 70. The air gap, the vane part and the micro switch part can be completely debugged before the vane brake leaves a factory, and a user can directly use the vane brake only by fixing the screw on the mounting plate on the rear end cover of the motor after taking the vane brake, so that the trouble of adjusting the air gap and the position of the micro switch is eliminated. In the prior art, the adjustment of the air gap and the microswitch is a complicated work with technical content, and through the design of the invention, a user does not need to specially arrange technical workers to learn the technology, namely, the wind vane brake provided by the invention reduces the use difficulty of the user.

The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.