阅读说明：本技术 显示实时吊钩偏角监控检测装置及起重机 (Real-time lifting hook deflection angle display monitoring and detecting device and crane ) 是由 林汉丁 于 2020-07-01 设计创作，主要内容包括：本发明提供一种显示实时吊钩偏角监控检测装置及起重机,将起重机定滑轮组件a1经联接件a3吊挂于吊臂的吊耳b2上,所述联接件a3一端用绞接轴a2同所述定滑轮组件a1联接,并将所述绞接轴a2设在与定滑轮轴线相垂直方位,在所述联接件a3上设立与滑轮组力作用线垂直平台面a6或设立与滑轮组力作用线的平行直线；吊重时所述实时与滑轮组力作用线垂直平台面a6同水平面间夹角或实时与滑轮组提升力作用线的平行直线偏离铅垂线的角度,数值上均等于实时吊钩偏角,在所述平台面a6检测吊钩偏角的精度,由装设的角度测量仪a7确定,以检测显示实时所述滑轮组力作用线偏离铅垂线角度的吊钩偏角,吊装全过程监控起重机的吊钩偏角。(The invention provides a monitoring and detecting device for displaying real-time hook deflection angle and a crane, a fixed pulley component a1 of the crane is hung on a lifting lug b2 of a suspension arm through a connecting piece a3, one end of the connecting piece a3 is connected with the fixed pulley component a1 through a hinge shaft a2, the hinge shaft a2 is arranged at a position vertical to the axis of the fixed pulley, and a platform surface a6 vertical to the force action line of a pulley block or a parallel straight line vertical to the force action line of the pulley block is arranged on the connecting piece a 3; when lifting a heavy load, in real time with the angle of the skew plumb line of contained angle or real-time and assembly pulley lifting force line's parallel straight line between the perpendicular platform face a6 of assembly pulley effort line and the horizontal plane, equality is in real-time lifting hook declination on the numerical value the precision of platform face a6 detection lifting hook declination is confirmed by the angle measuring instrument a7 who installs to it is real-time to detect the display the lifting hook declination of the skew plumb line angle of assembly pulley effort line, the lifting hook declination of hoist and mount overall process control hoist.)

1. A monitor for displaying real-time deviation angle of hook is featured as hanging fixed pulley component of crane on lifting lug of suspension arm by shackle through connector, connecting said connector to fixed pulley component by hinge shaft and setting said hinge shaft at position perpendicular to axis of fixed pulley; a platform surface vertical to a force action line of the pulley block is arranged on the connecting piece or a parallel straight line of the force action line of the pulley block is arranged on the connecting piece so as to detect the deflection posture of the lifting hook; when the weight is lifted, the included angle between the real-time vertical platform surface and the horizontal plane of the force line of the pulley block and the force line of the pulley block or the angle of the real-time parallel straight line of the force line of the pulley block deviating from the plumb line are equal to the deflection angle of the real-time lifting hook in numerical value.

2. The monitoring device for displaying real-time hook drift angle of claim 1, wherein the detection of the hook drift angle is performed by detecting the angle between the vertical platform surface (a 6) of the real-time force line of the pulley block and the horizontal plane during the lifting process, and when an angle measuring instrument (a 7) is installed on the platform surface (a 6), the detected real-time component is equal to the real-time hook drift angle after being synthesized along the axial direction X, Y.

3. The monitoring device for displaying the deviation angle of the lifting hook in real time as claimed in claim 2, wherein the real-time direction of the force line of the pulley block is deviated from the plumb line is perpendicular to the intersection line of the platform surface (a 6) and the horizontal plane, and the real-time angle of the force line of the pulley block is deviated from the plumb line and is positioned on the same plane with the included angle between the real-time plane perpendicular to the force line of the pulley block and the horizontal plane of the platform surface (a 6).

4. The device for monitoring the deflection angle of a lifting hook according to claim 1, wherein the object to be lifted is adjusted to be lifted in a centered manner according to the displayed deflection angle of the lifting hook in real time; and monitoring that the deflection angle of a lifting hook in the hoisting process of the crane is smaller than a specified rule.

5. A detection device for displaying real-time hook deflection angle is characterized in that a crane fixed pulley assembly (a 1) is hung on a lifting lug (b 2) of a lifting arm (b 1) through a connecting piece (a 3) by using a shackle (a 5), the connecting piece (a 3) is connected with the fixed pulley assembly (a 1) by using a hinge shaft (a 2), and the hinge shaft (a 2) is arranged in a position vertical to the axis of the fixed pulley; a platform surface (a 6) perpendicular to a pulley block force action line or a parallel straight line with the pulley block force action line is arranged on the connecting piece (a 3) so as to detect the deflection posture of the lifting hook.

6. Mobile crane with real time hook drift angle display, characterized in that it comprises a hook drift angle monitoring device according to any of claims 1-4 or a real time hook drift angle detection device according to claim 5.

The technical field is as follows:

the utility model provides a show real-time lifting hook declination control detection device and hoist, belongs to hoist technical field, and it is exactly that it is a hoist of installing and showing real-time lifting hook declination control detection device.

Background art:

according to the construction process standard 9.1.4 of the SH/3515 and 2003 large-scale equipment hoisting engineering, the crane hoisting process accords with the condition that in the hoisting process, the deflection angle of a lifting hook is less than 3 degrees, and in the hoisting process specified by the construction technical specification 11.1.4 of the SH/T3515-2017 large-scale equipment hoisting engineering, the crane with the deflection angle of the lifting hook less than 1 degree has a series of functions of lifting, rotating, amplitude changing, arm stretching and retracting, walking and the like, and is specified according to the specification that in the hoisting process, the deflection angle of the lifting hook is less than the specified value.

According to the fact that a crane appears in 1883 years in the west, a high-speed road multi-level-dump crane capable of crossing the country has been developed, however, the development of the crane serving as hoisting process equipment is relatively slow in the aspect of hoisting, so far, a crane driver cannot know whether a crane pulley block is in a vertical state in hoisting, particularly, in large-scale hoisting, the crane driver needs to grasp the crane by naked eyes and years of experience, the crane driver adjusts the vertical state of the pulley block to complete hoisting operation, and when a hoisted object is hoisted in a centering mode, the crane can be monitored by assistance of an instrument and cannot be used in dynamic hoisting, so that the crane can be determined to lack a real-time lifting hook deflection angle monitoring device.

The crane must be hoisted by a pulley block, so that a detector is arranged on the pulley block to detect the hook deflection angle of the crane, as shown in fig. 1, namely, the detector is arranged on the pulley block consisting of a fixed pulley A1 and a movable pulley A2 which are fixed on a boom A5, and a steel wire rope A3 and a hook A4 which are threaded between the fixed pulley and the movable pulley to detect the hook deflection angle of the crane.

Therefore, the detection of the deflection angle of the crane hook is conventionally obtained by detecting the swing angle of a lifting rope (a steel wire rope of the hook, the same below) from a pulley block or detecting the deflection angle of the hook by a visual technology of arranging a camera on a fixed pulley of the pulley block; the scheme for detecting the swing angle of the lifting rope from the lifting rope is that one lifting rope is selected from a plurality of lifting ropes of the pulley block to be used as a detection object, and the relative deflection exists between the axes of the fixed pulley and the movable pulley even if the steel wire rope of the pulley block is penetrated in the same direction, the steel wire ropes or the lifting ropes are not parallel, and the axis of the movable pulley and the fixed pulley is fixed on the lifting arm, so that the axis of the movable pulley is changed due to the tendency and the restriction of the operation direction of the lifting hook and the material resources to be lifted; the camera visual technology is limited by various conditions such as co-vision, light rays and surrounding environment, and the visual technology is used for detecting by searching for a mark point on the electric hook, so that the requirement of the mobile crane on the detection accuracy of the angle of the action line of the pulley block of the mobile crane deviating from the plumb line can not be met because the fixed pulley and the movable pulley are relatively deflected between axes and the accurate detection of the deflection angle of the lifting hook can not be obtained as the detection of the lifting rope.

The applicant departs from the detection of the deflection angle of the lifting hook by the lifting rope and a camera vision technology for many years, but a detector is still arranged on the pulley block to detect the deflection angle of the lifting hook of the crane, the application numbers are 201610733240.1 and 201610629162.0, the attention is not drawn, and the most famous crane manufacturers and research institutes in China still detect the deflection angle of the lifting hook by detecting the deflection angle of the lifting rope so far.

The invention content is as follows:

the invention aims to provide a device for monitoring and detecting the deflection angle of a lifting hook in real time, and also aims to provide a mobile crane comprising the device for monitoring and detecting the deflection angle of the lifting hook in real time.

This application deviates from and follows the assembly pulley is gone up the equipment and is established the detector with detection lifting hook declination, but assembly pulley fixed pulley with on the link of injecing between the davit, install the detector with the detection the assembly pulley power (resultant force, lower with) the lifting hook declination of line of action skew plumb line angle.

A monitor for displaying real-time deviation angle of hook is characterized in that a fixed pulley component of a crane is hung on a lifting lug of a lifting arm through a connecting piece by a shackle, the connecting piece is connected with the fixed pulley component by a hinge shaft, and the hinge shaft is arranged in a direction vertical to the axis of the fixed pulley; a platform surface vertical to a force action line of the pulley block is arranged on the connecting piece or a parallel straight line of the force action line of the pulley block is arranged on the connecting piece so as to detect the deflection posture of the lifting hook; when the weight is lifted, the included angle between the real-time vertical platform surface and the horizontal plane of the force line of the pulley block and the force line of the pulley block or the angle of the real-time parallel straight line of the force line of the pulley block deviating from the plumb line are equal to the deflection angle of the real-time lifting hook in numerical value. Need to explain: the crane fixed pulley component is hung on a lifting lug of a suspension arm through a connecting piece, the lifting lug is arranged at the position of the fixed pulley of the suspension arm or a crane boom, an arm frame and the like of the traditional crane, and the crane fixed pulley component is hung on the lifting lug through the limited connecting piece.

The monitoring device for displaying the real-time hook deflection angle is characterized in that the hook deflection angle is detected by detecting the included angle between the vertical platform surface a6 of a force line of a pulley block and the horizontal plane in real time during hoisting, when an angle measuring instrument a7 is arranged on the platform surface a6, the detected real-time component is along the X, Y axial direction, and the synthesized component is equal to the real-time hook deflection angle.

The device for monitoring the deflection angle of the lifting hook in real time is characterized in that the real-time direction of the force line of the pulley block, which deviates from a plumb line, is perpendicular to the intersection line of the platform surface a6 and a horizontal plane, and the real-time angle of the force line of the pulley block, which deviates from the plumb line, is on the same plane with the included angle between the real-time direction of the force line of the pulley block and the horizontal plane, which is perpendicular to the platform surface a 6.

The monitoring device for displaying the deflection angle of the real-time lifting hook is characterized in that a lifted object is adjusted to be centered and lifted according to the displayed deflection angle of the real-time lifting hook; and monitoring that the deflection angle of the lifting hook of the crane is smaller than a specified value in the hoisting process according to the displayed real-time deflection angle of the lifting hook.

A real-time hook deflection angle detection device for displaying is characterized in that a fixed pulley assembly a1 of a crane is hung on a lifting lug b2 of a lifting arm b1 by a shackle a5 through a connecting piece a3, a connecting piece a3 is connected with the fixed pulley assembly a1 by a hinge shaft a2, and the hinge shaft a2 is arranged in a vertical direction to the axis of the fixed pulley; and a platform surface a6 perpendicular to a force application line of the pulley block or a parallel straight line perpendicular to the force application line of the pulley block is arranged on the connecting piece a3 so as to detect the deflection posture of the lifting hook.

A mobile crane capable of displaying real-time hook deflection angle is characterized by comprising the monitoring device for displaying real-time hook deflection angle or the detection device for displaying real-time hook deflection angle.

2, 3, a crane fixed pulley assembly a1 is hung on a lifting lug b2 of a boom b1 through a connecting piece a3, one end of the connecting piece a3 is connected with the fixed pulley assembly a1 through a hinge shaft a2, the hinge shaft a2 is arranged in a vertical direction to the axis of the fixed pulley, and the other end of the connecting piece a3 is hung on the lifting lug b2 of the boom through a shackle a 5; therefore, when the pulley block force application point acting on the fixed pulley axis is deviated, the fixed pulley assembly a1 is self-adjusted along the hinge shaft a2 under the action of the pulley block hanging weight tension, the fixed pulley axis is slightly inclined, and the pulley block force application line is always vertical to the platform surface a6 when the pulley block force application line is hung weight because the pulley block force application line passes through the connecting piece a3 and a platform which is vertical to the platform surface a6 is fixedly arranged on the connecting piece a 3.

Because when hanging heavy the assembly pulley effort line perpendicular to all the time the platform face, work as the connector the fixed angle measuring apparatu of installing on the platform face, the contained angle between the perpendicular platform face of detected and assembly pulley effort line and horizontal plane, is equal to numerically the real-time lifting hook declination of the skew plumb line angle of assembly pulley effort line.

As shown in fig. 4, assuming that the intersection angle between the b-point on the pulley block force action line m and the plumb line n passing through the b-point is equal to angle b, the included angle between the platform surface W (i.e., a6 in fig. 2) perpendicular to the pulley block force action line m and the Z-horizontal plane is equal to angle a, the suffixes of the perpendicular line made to the W, Z dihedral are C, D, respectively, the point C is made as a point a of Ca perpendicular to the intersection line L of the W-plane and the Z-plane in the plane, the connection Da L α, L bC, L α plane bCa, L ba, L ^ bD, L ^ bDa, L ^ Da, L ^ CaD is the plane angle of the dihedral angle, the quadrangle aCbD and m, n straight line are coplanar and C = D =90

So < a (complementary to < CbD) is equal to the acute angle < b where the m-line intersects the n-line.

The above shows that: real-time the angle of the skew plumb line of assembly pulley effort line equals in real time with contained angle between the perpendicular platform face of assembly pulley effort line and the horizontal plane, real-time the position perpendicular to of the skew plumb line of assembly pulley effort line the platform face intersects with the horizontal plane, just the angle of the skew plumb line of real-time assembly pulley effort line, with contained angle is located the coplanar between the perpendicular platform face of real-time and assembly pulley effort line and the horizontal plane.

An angle gauge may thus be provided on the platform surface a6 to detect the real-time hook deflection angle of the pulley block force line from the plumb line angle.

The defined coupling a3 creates conditions for correct detection of the deflection attitude of the hook:

(1) when the platform surface perpendicular to the pulley block force action line is fixedly arranged on the connecting piece a3 to meet the requirement that the deviation angle of the hook is 0 degrees, the platform surface a6 is a platform of a horizontal plane, the pulley block force action line is always perpendicular to the platform surface a6 during the lifting, so that the deviation attitude of the hook can be accurately detected through the platform surface a6, and if an angle measuring instrument a7 is arranged on the platform surface a6, the detected real-time component along the X, Y axial direction is synthesized to be equal to the deviation angle of the hook in real time;

(2) the straight line parallel to the force action line of the pulley block is provided for detecting the deflection posture of the lifting hook, the platform surface a6 vertical to the force action line of the pulley block is fixedly arranged on the connecting piece, the straight line vertical to the platform surface a6 is fixed on the platform surface a6, and the straight line is the parallel line of the force action line of the pulley block. Therefore, a detector can be arranged on a straight line which is fixed to be vertical to the platform surface a6, and the deflection posture of the lifting hook can be accurately detected.

The method is characterized in that the deflection angle monitoring of a lifting hook in vertical hoisting and hoisting is a basic requirement of safe operation of a crane, equipment is advanced and flexibly controlled, a pilot type handle crane is adopted, and when a real-time deflection angle of the lifting hook is additionally displayed for the crane, a driver of the crane can realize vertical hoisting (the deflection angle of the lifting hook is 0 degree) or monitor that the deflection angle of the lifting hook in hoisting is smaller than a specified value according to the matched operation of the driver.

The real-time lifting hook deflection angle displaying and detecting device and the crane have the advantages that: the invention can display the accurate deflection angle of the lifting hook during lifting, and can adjust the object to be lifted to be centered and lifted according to the deflection angle of the lifting hook in real time; monitoring that the deflection angle of a lifting hook in the hoisting process of the crane is smaller than a regulation specified value; and can choose the wired or wireless transmission including bus, help the said monitoring device to protect and combine other apparatuses on the said hoist to choose the electricity scheme of using power; particularly, the accurate detection of the deflection angle of the lifting hook is realized on the mobile crane with advanced equipment and flexible control, and a vertical lifting monitoring function and a lifting hook deflection angle monitoring function in lifting can be added to the mobile crane.

Description of the drawings:

FIG. 1 is a schematic view of a pulley block structure;

reference numbers in fig. 1: a5 boom A1 fixed pulley A2 movable pulley A3 steel cable A4 hook;

FIG. 2 shows an explanatory view of a hook deflection angle structure;

the numbers in fig. 2: a1 fixed pulley assembly, a2 hinge shaft, a3 coupling, a4 shackle 1, a5 shackle 2, a6 platform surface, a7 angle measuring instrument;

FIG. 3 is a schematic view of a lifting lug of the crane boom;

reference numbers in fig. 3: b1 suspension arm, b2 lifting lug;

FIG. 4 is an explanatory view of detection of a hook deflection angle from a pulley block force action line;

FIG. 5 is a schematic view of a left side cross-sectional configuration of the embodiment of FIG. 2.

The specific implementation mode is as follows:

scheme for displaying real-time lifting hook deflection angle during lifting

As shown in fig. 2, a crane fixed pulley assembly a1 is hung on a lifting lug b2 of a boom b1 through a connecting piece a3, one end of the connecting piece a3 is connected with the fixed pulley assembly a1 through a hinge shaft a2, the hinge shaft a2 is arranged in a vertical direction to the axis of the fixed pulley, and the other end of the connecting piece a3 is hung on the lifting lug b2 of the boom through a shackle a 5; therefore, when the force application point of the pulley block acting on the axis of the fixed pulley deviates, the fixed pulley assembly a1 is self-adjusted along the hinge shaft a2 under the action of the tension of the pulley block hanging weight, the axis of the fixed pulley is slightly inclined, and the force application line of the pulley block is always vertical to the platform surface a6 when the pulley block is hung weight because the force application line of the pulley block passes through the connecting piece a3 and a platform which is vertical to the platform surface a6 is fixedly arranged on the connecting piece a 3.

Therefore, the correct detection of the deflection posture and the like of the hook can be carried out through the platform surface a6, and the force action line of the pulley block is always vertical to the platform surface a6 during the hoisting; when the platform surface a6 of the connecting piece a3 is fixedly provided with an angle measuring instrument, the detected included angle between the platform surface vertical to the force action line of the pulley block and the horizontal plane is equal to the real-time hook deflection angle.

Because the detected real-time hook deflection angle is determined by the angle of the force action line of the pulley block deviating from the plumb line, the detection is clear according to the principle and has no doubt, and an angle measuring instrument is arranged on the platform surface for detection, which belongs to the reliable prior art, so that the hook deflection angle detection scheme has reliability and feasibility.

Real-time lifting hook deflection angle detected by angle measuring instrument

A BWD-VG500 dynamic measurement inclinometer (X, Y shaft dynamic accuracy is 0.1 degree) of north micro sensing (WWW. angle. com. cn) is selected, and is arranged on the connecting plate a3 and the platform surface a6 vertical to the pulley block force action line, transmits the detected real-time X, Y axial component through a bus, and the singlechip microcomputer calculates the real-time X, Y axial component synthetic value according to the real-time hook deflection angle value, meanwhile, the force action line of the pulley block is vertical to the intersection line of the platform surface and the horizontal plane according to the real-time direction of the deviation of the force action line of the pulley block from the plumb line, and the angle of the real-time pulley block force action line deviating from the plumb line and the included angle between the real-time pulley block force action line vertical platform surface a6 and the horizontal plane are positioned on the same plane, and according to the polarity of the real-time X, Y axial component, through the matched display screen in the prior art, the real-time numerical value and the direction of the deflection angle of the lifting hook are accurately displayed in the crane operation room.

It should be noted that the above-mentioned embodiments of the present invention are examples only, and that several modifications and decorations made by those skilled in the art should be considered as the protection scope of the present invention.