Automatic steering device of crown block lifting hook
By installing an automatic steering device on the overhead crane hook, automatic steering is achieved through gear transmission and electric drive, which solves the problem of bogie rotation or deviation during hoisting, and improves hoisting safety and production efficiency.
Patent Information
- Application Number
- CN202520381231.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-06
AI Technical Summary
The current overhead crane hooks are mainly steered manually, which causes the bogie to rotate or shift during hoisting, making it difficult to place accurately and posing a safety hazard.
The crane hook automatic steering device is adopted, which includes a frame, a fixed plate, a rotating frame, a geared motor and a scissor hook fork assembly. Automatic steering is achieved through gear transmission and electric drive, and is controlled by a micro electrical control box and a remote control.
It enables automatic steering of the overhead crane hook, improves lifting safety, reduces operational difficulty and safety risks, and increases production efficiency.
Smart Images
Figure CN223879293U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automatic steering device of overhead crane hook used in railway wagon repair workshop. BACKGROUND
[0002] At present, the steering of the overhead crane hook is mainly manual, and during the steering of the overhead crane, the commander needs to place the bogie stably on the track, and during the operation, the bogie inevitably rotates or deviates, which makes the commander unable to place it accurately on the track, so manual steering is needed before placement, and the direction of the bogie needs to be adjusted. During the adjustment process, due to the large inertia, the bogie may not be returned in time, and there is a great risk of safety hazard. UTILITY MODEL CONTENTS
[0003] In order to solve the problems of the prior art, the utility model provides an automatic steering device of overhead crane hook, which can solve the uncontrollable rotation or deviation of the bogie during the lifting operation in the repair workshop.
[0004] The utility model solves the technical problems by adopting the following technical scheme:
[0005] The automatic steering device of overhead crane hook comprises a hanger, a fixed disc, a bogie, a speed reducer motor and a scissor hook fork assembly, characterized in that: the hanger is arranged above the fixed disc and is mechanically connected with the fixed disc; a large gear and the bogie are arranged below the fixed disc, and the large gear is located between the fixed disc and the bogie; pin shaft holes are arranged on the fixed disc, the hanger, the large gear and the bogie; the hanger, the fixed disc, the large gear and the bogie are mechanically assembled from top to bottom by the steel pin shaft; the large gear and the bogie are mechanically connected; the large gear and the steel pin shaft are connected by a key; the speed reducer motor is fixedly installed on the fixed disc and is connected with the large gear by a small gear for gear transmission; and the scissor hook fork assembly is installed below the bogie in a lifting manner.
[0006] Further, the scissor hook fork assembly comprises an X-shaped scissor fork, a hook and a power rod, the X-shaped scissor fork is a double-arm structure composed of a connecting rod arm and a connecting shaft, the upper and lower ends of the power rod are respectively hingedly connected with the X-shaped scissor fork and the bogie, and the X-shaped scissor fork is driven to change shape and drive the two hook parts at the lower end of the X-shaped scissor fork to open and close.
[0007] Further, the power rod is one of an electric push rod and a pneumatic long cylinder.
[0008] Further, a guide rod is arranged on the hook arm above the hook.
[0009] Further, the hanger comprises a fastening disc, vertical arms, a crossbeam and a deflection preventing support, wherein the fastening disc is welded with the fixing disc, the vertical arms extend upward from both sides of the fastening disc, the crossbeam is arranged between the two vertical arms, and the deflection preventing support is arranged at the top of the two vertical arms and is in the shape of a rod and perpendicular to the crossbeam.
[0010] Further, the large gear and the rotating frame are fixed by high-strength bolts or pegs.
[0011] Further, the fixing disc is a steel disc part.
[0012] Further, the lower surface of the fixing disc is provided with mechanical limit switches, the number of the mechanical limit switches is two, and the two mechanical limit switches are at an angle of 90 degrees.
[0013] Further, the utility model also comprises a micro electric control box, which is installed on the fixing disc, and the micro electric control box is electrically connected with the speed reducer motor and the mechanical limit switches and is wirelessly connected with a remote controller.
[0014] Further, the steel pin shaft is provided with enlarged boss structures at the upper and lower ends, and a thrust bearing is arranged at the position where the boss structure is in rotational cooperation with the corresponding hanger.
[0015] The utility model has the advantages of:
[0016] The crane hook automatic steering device is characterized in that a small speed reducer motor is arranged on the upper part of the crane hook, the crane hook is automatically steered in a gear transmission mode, and the crane hook can be steered by an external remote controller, so that the effect of alignment of the bogie is achieved, the problem that the hoisted workpiece is randomly rotated in the prior art is solved, and the hoisting safety is improved.
[0017] The device is a kind of semi-automatic electric hoisting tool, which can be electrically assisted steering, improve production efficiency, reduce operation difficulty, reduce safety risk, and ensure that the section repair and factory repair can be safely, stably and efficiently completed. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a perspective view of the device.
[0019] Figure 2 It is a front view of Figure 1
[0020] Figure 3 It is a side view of Figure 1
[0021] Figure 4 It is a top view of Figure 1
[0022] Figure 5 For Figure 2 A-A sectional view.
[0023] Figure 6 For Figure 2 B-B sectional view.
[0024] In the figure:
[0025] 100 hanger, 110 fastening disc, 120 vertical arm, 130 crossbeam, 140 anti-deflection support,
[0026] 200 fixed disc,
[0027] 300 rotating frame,
[0028] 400 reduction motor, 410 pinion, 420 gear, 430 mechanical limit switch, 440 micro electric control box,
[0029] 500 scissor hook fork assembly, 510 X-shaped scissor fork, 520 hook, 521 guide rod, 530 power rod,
[0030] 600 steel pin shaft, 610 thrust bearing. DETAILED DESCRIPTION
[0031] The embodiment illustrates an automatic turning device for a hoist hook, which is used in cooperation with hoisting operation of a hoist, and use of the device makes hoisting process safer and more efficient and reduces danger.
[0032] Referring to Figures 1 to 6 , the device comprises a hanger 100, a fixed disc 200, a rotating frame 300, a reduction motor 400, a gear transmission assembly, and a scissor hook fork assembly 500. The fixed disc 200 is a circular steel disc part, which is also a mounting platform for the hanger, the rotating frame, and the motor. The composition and assembly relationship of each component are described in detail below.
[0033] The fixed disc 200 has a circular pin shaft hole in the middle, and the hanger 100 is fixed above the pin shaft hole. The hanger is welded with the fixed disc 200 to form an integral whole. A gear and a rotating frame are arranged below the pin shaft hole. The gear 420 is located between the fixed disc and the rotating frame. A pin shaft hole is arranged on the hanger, the gear, and the rotating frame. A large steel pin shaft 600 is used to connect and assemble the hanger, the fixed disc, the gear, and the rotating frame from top to bottom. After assembly, the gear 420 and the rotating frame 300 are fixed by high-strength bolts or pegs. The gear and the steel pin shaft are mechanically assembled by key connection. When the gear rotates, the hanger rotates relative to the fixed disc.
[0034] Further, a mechanical limit switch 430 is arranged on the lower surface of the fixed disc 200, and the number of the mechanical limit switch is two, and the two mechanical limit switches are at an angle of 90°, and through the arrangement of the mechanical limit switch, the relative rotation limit position of the rotating frame can be controlled, that is, the rotation range of the rotating frame is 90°.
[0035] Further, the above-mentioned reduction motor 400 is fixedly installed on the above-mentioned fixed disc, and gear transmission is performed between the above-mentioned reduction motor and the large gear through a pinion, and in the embodiment, the large gear 420 and the pinion 410 form a gear transmission assembly, wherein the pinion is installed on the power output shaft of the reduction motor, and the large gear 420 is installed on the steel pin shaft, that is, gear transmission is performed through the meshing pinion and the large gear, and it is easy to understand that the reduction motor provides power, drives the above-mentioned rotating frame to rotate in a circle through the gear transmission assembly, and at the same time, the rotation angle of the rotating frame is limited through the two mechanical limit switches 430. The mechanical limit switch is used for triggering the stop of the reduction motor after the rotating frame rotates to the position, and the start of the reduction motor is controlled through the wireless remote controller in the hand of the operator.
[0036] Further, the steel pin shaft 600 has an enlarged boss structure at the upper and lower ends, and a thrust bearing 610 is arranged at the position where the boss structure at the upper end is rotationally matched with the corresponding hanger rotation matching plane, so that the steel pin shaft has flexible rotation performance relative to the fixed disc and the hanger.
[0037] The scissor hook fork assembly 500 is installed in a hoisting manner below the rotating frame, and the scissor hook fork assembly includes an X-shaped scissor fork 510, a hook 520, and a power rod 530, the X-shaped scissor fork 510 has a double-arm structure and is composed of a connecting rod wall and a connecting shaft, wherein the upper and lower ends of the power rod are installed between the X-shaped scissor fork and the rotating frame, and the driving of the power rod 530 causes the X-shaped scissor fork to change in shape, thereby driving the opening and closing of the two hook parts at the lower end of the X-shaped scissor fork. The hook is located at the end of the X-shaped scissor fork and is the operation point for grabbing and hoisting the workpiece in the hoisting operation.
[0038] Further, the above-mentioned power rod 530 is one of an electric push rod and a pneumatic long cylinder, and is a power assembly.
[0039] Further, a guide rod 521 is arranged near the upper point position above the hook 520, one end of the guide rod is welded to the hook wall of the hook, and has a certain upward angle, which is used for guiding during the hooking operation, and the existence of the guide rod can improve the hooking speed of the hoisted workpiece (for example, the rotating frame).
[0040] Further, the hanger 100 comprises a fastening disc 110, vertical arms 120, a crossbeam 130 and anti-deflection supports 140, wherein the fastening disc 110 is welded with the fixing disc, the vertical arms 120 extend upward from both sides of the fastening disc, and a crossbeam 130 is welded between the middle positions of the two vertical arms, the crossbeam is used to cooperate with the trolley hook (shown in Figure 1 ), that is, the trolley hook hooks the crossbeam, and the crossbeam is the hooking point of the trolley hook. The anti-deflection supports 140 are welded at the top ends of the two vertical arms, the anti-deflection supports are rod-shaped and perpendicular to the crossbeam, and the two anti-deflection supports are used to limit the trolley hook (shown in Figure 1 ), and ensure the stable position of the hanger relative to the trolley hook, which has a positive safety significance for ensuring the stability of the workpiece during hoisting.
[0041] Further, a micro electric control box 440 is installed on the fixing disc, the micro electric control box is electrically connected with the speed reducer motor and the mechanical limit switch, and is wirelessly connected with a remote controller.
[0042] The embodiment improves the production efficiency, reduces the operation difficulty, reduces the safety risk, ensures that the section repair and the factory repair can be safely, stably and efficiently completed, reduces the manpower, ensures the labor safety of workers, and provides technical support for the maintenance production of a railway workshop.
[0043] The above-described embodiment only describes the preferred implementation manner of the utility model, and does not limit the scope of the utility model, and under the premise of not departing from the design spirit of the utility model, various deformations and improvements of the utility model by the related personnel in the field shall fall within the protection scope determined by the claim book of the utility model.
Claims
1. An automatic steering device for a crown block hook, comprising a hanger, a fixed disc, a rotating disc, a speed reduction motor and a scissor fork assembly, characterized in that: The upper part of the fixed disc is provided with a hanger, which is mechanically connected with the fixed disc; the lower part of the fixed disc is provided with a large gear and a rotating frame, and the large gear is located between the fixed disc and the rotating frame; pin shaft holes are arranged on the fixed disc, the hanger, the large gear and the rotating frame, and the hanger, the fixed disc, the large gear and the rotating frame are mechanically assembled from top to bottom by a steel pin shaft; the large gear and the rotating frame are mechanically connected; the large gear and the steel pin shaft are keyed; the reduction motor is fixedly installed on the fixed disc, and the reduction motor and the large gear are connected by a pinion for gear transmission; and the scissor hook fork assembly is installed below the rotating frame in a hoisting manner.
2. The automatic crown line diverting device of claim 1, wherein, The scissor hook fork assembly comprises an X-shaped scissor fork, a hook and a power rod, the X-shaped scissor fork is a double-arm structure composed of a connecting rod arm and a connecting shaft, the upper and lower ends of the power rod are respectively hingedly connected with the X-shaped scissor fork and the rotating frame, and the X-shaped scissor fork is driven to change shape and drive the two hook parts at the lower end of the X-shaped scissor fork to open and close.
3. The automatic crown line diverting device of claim 2, wherein, The power rod is one of an electric push rod and a pneumatic long cylinder.
4. The automatic crown line diverting device of claim 2, wherein, A guide rod is arranged on the upper hook arm of the hook.
5. The automatic crown line diverting device of claim 1, wherein, The hanger comprises a fastening disc, vertical arms, a cross beam and an anti-deflection bracket, the fastening disc is welded and fixed with the fixed disc, the vertical arms extend upward from both sides of the fastening disc, the cross beam is arranged between the two vertical arms, and the anti-deflection bracket is arranged at the top end of the two vertical arms and is in the form of a rod and perpendicular to the cross beam.
6. The automatic crown line diversion device of claim 1, wherein, The large gear and the rotating frame are fixed by high-strength bolts or pegs.
7. The automatic crowding device for a crown block according to claim 1, wherein The fixed disc is a steel disc part.
8. The automatic crowding device for a crown block as claimed in claim 1, wherein Two mechanical limit switches are arranged on the lower surface of the fixed disc, and the two mechanical limit switches are at an angle of 90°.
9. The automatic crown line device according to claim 8, wherein, A micro electric control box is further arranged on the fixed disc, and the micro electric control box is electrically connected with the reduction motor and the mechanical limit switches and is wirelessly connected with a remote controller.
10. The automatic crowding device for a crown block according to claim 1, wherein The upper and lower ends of the steel pin shaft have an enlarged boss structure, and a thrust bearing is arranged at the position where the boss structure is rotationally matched with the corresponding hanger.