CN212475860U

CN212475860U - Anticollision overhead traveling crane

Info

Publication number: CN212475860U
Application number: CN202020881641.3U
Authority: CN
Inventors: 熊云飞
Original assignee: Yichang Jiangsan Technology Development Co ltd
Current assignee: Yichang Jiangsan Technology Development Co ltd
Priority date: 2020-05-24
Filing date: 2020-05-24
Publication date: 2021-02-05
Anticipated expiration: 2030-05-24

Abstract

The utility model belongs to the safety protection field discloses an anticollision overhead traveling crane, including automobile body, frame and electrical control box, the bottom four corners of frame is all rotated and is installed the rail wheel, and the frame has buffer along overhead traveling crane direction of motion's end fixing, and the one end fixedly connected with laser range finder of automobile body, laser range finder and overhead traveling crane electrical control box signal connection, laser range finder play the stroke limiting. The buffer device comprises a fixed cylinder, an anti-collision cylinder and a collision head, and the length of the buffer device can be adjusted through a detachable fastener. The utility model provides an anticollision overhead traveling crane, stroke protection distance and buffer length all can adjust according to the condition of hoist and mount thing, make overhead traveling crane and hoist and mount thing obtain better protection.

Description

Anticollision overhead traveling crane

Technical Field

The utility model relates to a safety protection field, concretely relates to anticollision overhead traveling crane.

Background

The crown block is one of the most widely used hoisting machines, and is essential equipment in many jobs with the development of national economy. The overhead traveling crane crossbearer is used as a device for hoisting objects and performing certain special processes above fixed spans in workshops, warehouses and open-air stacking occasions, and has the advantages of simple structure, easy operation, capability of hoisting at will within the space range allowed by the limit height of a hoisting mechanism and the tracks of a large crane and an overhead traveling crane, convenient maintenance, large hoisting capacity and no occupied ground operation area.

The anti-collision device of the existing crown block is a stroke limiter and a buffer, the general stroke limiter is a switch arranged at a fixed position, when the crown block travels to a limit position and touches the switch, a circuit is cut off, but because the stroke limiter is fixed in position, the protection distance is fixed and cannot be adjusted, if the volume of a hoisted object is large, the situation that the hoisted object hits an upper end beam or a workshop wall when the stroke limiter does not act can occur, and the stroke limiter needs to be reset after acting, so that the crown block is inconvenient. And the general length of current buffer is fixed, installs at overhead traveling crane crossbeam both ends, plays the buffering guard action when inevitable striking takes place, if the object shape of hoist and mount is irregular or the volume is great, the condition that fixed buffer took effect before hoist and mount article and wall or crane beam bump earlier probably appears when bumping, influences the operation safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anticollision overhead traveling crane to stroke stopper rigidity, buffer length can not change in the overhead traveling crane stroke protection that proposes in solving above-mentioned background art, the easy collision problem of handling thing.

In order to achieve the purpose, the utility model provides an anti-collision crown block, which comprises a crown block body, a frame and an electrical control box, wherein four corners of the bottom of the frame are rotatably provided with rail wheels, the end part of the crown block frame along the motion direction of the crown block is fixedly provided with a buffer device, the buffer device comprises a fixed cylinder, an anti-collision cylinder and a contact head, the anti-collision cylinder is sleeved in the fixed cylinder and is connected with the fixed cylinder through a fastener, a limiting plate is fixed in the anti-collision cylinder, a circular cylinder cover is fixed at the end part of the anti-collision cylinder, a sliding plate is arranged between the limiting plate and the cylinder cover, one surface of the sliding plate, which is far away from a trolley, is fixedly connected with a cylindrical telescopic rod, the telescopic rod vertically penetrates through the cylinder cover and can drive the sliding plate to slide in the anti-collision cylinder, one end of the telescopic rod, which is positioned at the outer side of the, the guide pillar is sleeved with a first spring, two ends of the first spring are fixed to the bottom surface of the sliding plate and the upper surface of the limiting plate respectively, a laser range finder is fixedly installed at one end of the frame and is in signal connection with an electric control box of the overhead travelling crane.

Preferably, the telescopic rod is sleeved with a second spring, the second spring is positioned between the cylinder cover and the collision head, and two ends of the second spring are respectively fixed on the surface of the cylinder cover and the bottom surface of the collision head.

Preferably, the fixed cylinder wall is symmetrically provided with a plurality of connecting holes by taking the axis of the fixed cylinder as a symmetric center, the connecting holes are equidistantly distributed in the axis direction of the fixed cylinder wall, the bottom end of the anti-collision cylinder is provided with inner-layer connecting holes matched with the connecting holes, and the connecting holes in the fixed cylinder and the inner-layer connecting holes matched with the anti-collision cylinder are penetrated and fixed by detachable fasteners.

Preferably, a plurality of key grooves are symmetrically formed in the inner wall of the fixed barrel along the axial direction, a protruding flat key is correspondingly arranged at the position, close to the bottom end, of the outer wall of the anti-collision barrel, a connecting hole in the fixed barrel is formed in the key groove, and an inner layer connecting hole in the anti-collision barrel is formed in the flat key.

Preferably, the buffer device is symmetrically provided with mounting holes and is mounted on the frame through bolts.

Preferably, the collision head is wrapped by a rubber pad, so that the collision head is protected when collision occurs.

Compared with the prior art, the beneficial effects of the utility model are that:

this utility model discloses detect the overhead traveling crane position and control overhead traveling crane stroke with laser range finder, laser range finder can set up minimum distance and maximum distance, and the relay action when detecting overhead traveling crane apart from hoisting equipment one side end beam and reaching minimum distance and maximum distance, cutting off circuit, overhead traveling crane bring to rest prevents the collision. When the hoisted object is large in size or special in shape, the minimum distance and the maximum distance of the laser range finder can be adjusted to prevent the hoisted object from colliding, the traditional stroke limiter with a fixed position is replaced, the defect that the stroke limited by the traditional stroke limiter cannot be changed is overcome, and the hoisted object is effectively prevented from colliding with an end beam of a crane or a factory building wall before the crown block stroke limiter acts.

The utility model discloses a buffer that can adjust length can cooperate the protection distance adjustment buffer's that laser range finder set up length according to the structure of hoist and mount thing and overhead traveling crane. The buffer device can play an effective protection role in the impact, and further ensures that the overhead travelling crane and the hoisting object are not damaged by the impact.

The utility model discloses a buffer directly receives the structure of collision, belongs to the vulnerable part, installs on the frame through the bolt, is convenient for change.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a schematic view of the buffering device of the present invention;

fig. 3 is a front view of the buffering device of the present invention;

in the figure: 1. a laser range finder; 2. an overhead traveling crane electrical control box; 3. a vehicle body; 4. a frame; 5. a buffer device; 6. a fixed cylinder; 7. an anti-collision barrel; 8. bumping head; 9. a limiting plate; 10. a cylinder cover; 11. a sliding plate; 12. a telescopic rod; 13. a guide post; 14. a spring; 15. a second spring; 16 connecting holes; 17. inner layer connecting holes; 18. a fastener; 19. a keyway; 20. a flat bond; 21. mounting holes; 22. and (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, in which like parts are designated by like reference numerals. It should be noted that the "bottom end" and "axis" used in the following description refer to positions on fig. 2.

Referring to fig. 1-3, the present invention provides an embodiment: an anticollision overhead traveling crane, includes automobile body 3, frame 4, and the overhead traveling crane below still is connected with load handling device, the lifting hook promptly. The bottom four corners of frame all rotates and installs the rail wheel, and overhead traveling crane frame 4 is fixed with buffer 5 along the tip of overhead traveling crane direction of motion, fixed mounting laser range finder 1 on frame 4, and laser range finder 1 is connected with the 2 signal connection of electrical control box of overhead traveling crane, and the overhead traveling crane below is connected with the lifting hook.

Buffer 5 includes a fixed section of thick bamboo 6, an anticollision section of thick bamboo 7 with bump head 8, an anticollision section of thick bamboo 7 is inside to be fixed with limiting plate 9, and the end fixing of an anticollision section of thick bamboo 7 has circular shape cover 10, be equipped with sliding plate 11 between limiting plate 9 and the cover 10, sliding plate 11 keeps away from the one side fixedly connected with cylindrical telescopic link 12 of dolly, and telescopic link 12 passes cover 10 perpendicularly, telescopic link 12 can drive sliding plate 11 and remove between limiting plate 9 and cover 7, the inboard symmetry of cover 10 is fixed with a plurality of guide pillars 13 parallel with an anticollision section of thick bamboo 7 axis direction, guide pillar 13 runs through behind sliding plate 11 with limiting plate 9 fixed connection, guide pillar 13 has cup jointed spring 14 outward, sliding plate 11 can make spring 14 compressed to the removal of limiting plate 9 direction. One end fixedly connected with that telescopic link 12 is located the cover 10 outside bumps head 8, and telescopic link 12 overcoat has connect second spring 15, and second spring 15 is located between cover 10 and bumps head 8 and the both ends of second spring 15 are fixed respectively on the surface of cover 10 and the bottom surface that bumps head 8, and the second spring can prevent that cover 10 from being bumped by bumping head 8.

The crash tube 7 is sleeved in the fixed tube 6 and connected through a detachable fastener 18. The inner wall of the fixed cylinder 6 is symmetrically provided with a plurality of key grooves 19 along the axial direction by taking the axis as a symmetric center, the position of the outer wall of the anti-collision cylinder 7, which is close to the bottom end, is correspondingly provided with a raised flat key 20, the flat key 20 can slide in the key grooves 19, a plurality of connecting holes 16 are equidistantly distributed in the key grooves 19, and the raised flat key 20 is provided with inner-layer connecting holes 17.

The detachable fastening piece 18 is taken down, the anti-collision barrel 7 is pulled along the axial direction, the relative position of the fixed barrel 6 and the anti-collision barrel 7 is adjusted, the length of the buffer device 5 can be changed, when the length of the buffer device 5 is proper, the detachable fastening piece 18 sequentially penetrates through the inner layer connecting hole 17 and the connecting hole 16 in the corresponding position on the fixed barrel 6, and the fixing is realized through the mounting cap. The key groove 19 and the flat key 20 can prevent the anti-collision barrel 7 from rotating when horizontally moving along the axial direction relative to the fixed barrel 6, and the fixed barrel 6 and the anti-collision barrel 7 can be quickly fixed by the detachable fastener 18.

The working principle is as follows: when the overhead traveling crane performs a hoisting operation, the overhead traveling crane runs along the crane track, and the laser range finder 1 detects the distance between the overhead traveling crane and the crane end beam. The laser range finder 1 is provided with a maximum distance value and a minimum distance value, and when the laser range finder 1 detects the minimum distance, the distance between the crown block and the end beam close to one side of the laser range finder 1 reaches a limit distance; when the laser range finder 1 detects the maximum distance, the limit distance is reached between the crown block and the end beam on the side far away from the laser range finder 1. When the laser range finder 1 detects that the distance value between the overhead traveling crane and the end beam of the crane reaches the set maximum distance or minimum distance, a relay in the overhead traveling crane electrical control box 2 acts, and the power supply of the overhead traveling crane is cut off.

If the overhead traveling crane cannot be completely stopped due to inertia or other reasons after the power supply is cut off, the buffer device 5 serves as a collision protection device to protect the overhead traveling crane body and hoisted objects from directly impacting a crane end beam or a workshop wall. At this moment, the buffer device 5 is impacted, the collision head 8 is firstly stressed and extrudes the telescopic rod 12 into the anti-collision barrel 7, the telescopic rod 12 drives the sliding plate 11 to move towards the limiting plate 9, the relative position of the guide pillar 13 and the sliding plate 11 is changed, the free length of the spring 14 sleeved outside the guide pillar 13 is continuously shortened under the pressure of the sliding plate 11, the buffer effect is achieved, and the second spring 15 arranged between the barrel cover 10 and the collision head 8 protects the barrel cover from being impacted by the collision head.

When the hoisted object is large, the stroke range of the overhead traveling crane is changed by resetting the maximum distance and the minimum distance of the laser range finder 1, so that the overhead traveling crane stops running when being far away from the end beam of the hoisting equipment, and the hoisted object is prevented from colliding. And correspondingly adjust the length of buffer 5, make the guard distance increase, further prevent hoisting apparatus end beam or workshop wall from bumping against.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. The utility model provides an anticollision overhead traveling crane, includes automobile body (3), frame (4) and electrical control box (2), its characterized in that: the trolley is characterized in that rail wheels are rotatably mounted at the bottom of the frame (4) respectively, a buffer device (5) is fixed at the end part of the frame (4) along the movement direction of the frame, the buffer device (5) comprises a fixed cylinder (6), an anti-collision cylinder (7) and a collision head (8), the anti-collision cylinder (7) is sleeved in the fixed cylinder (6) and connected through a fastener (18), a limiting plate (9) is fixed inside the anti-collision cylinder (7), a circular cylinder cover (10) is fixed at the end part of the anti-collision cylinder (7), a sliding plate (11) is arranged between the limiting plate (9) and the cylinder cover (10), a cylindrical telescopic rod (12) is fixedly connected to one surface of the sliding plate (11) far away from the trolley, the telescopic rod (12) vertically penetrates through the cylinder cover (10), the collision head (8) is fixedly connected to one end of the telescopic rod (12) located at the outer side of the cylinder cover (10), a plurality of guide posts (13) parallel to the axis direction, the guide post (13) penetrates through the sliding plate (11) and then is fixedly connected with the limiting plate (9), a first spring (14) is sleeved outside the guide post (13), two ends of the first spring (14) are respectively fixed on the bottom surface of the sliding plate (11) and the upper surface of the limiting plate (9), the laser range finder (1) is fixedly installed at one end of the frame (4), and the laser range finder (1) is electrically connected with the electric control box (2) of the overhead travelling crane.

2. The crash-proof crown block as claimed in claim 1, wherein: the outer wall of the telescopic rod (12) is sleeved with a second spring (15) along the axial direction, and two ends of the second spring (15) are respectively fixed on the surface of the barrel cover (10) and the bottom surface of the collision head (8).

3. The crash-proof crown block as claimed in claim 1, wherein: the anti-collision barrel is characterized in that a plurality of connecting holes (16) are symmetrically formed in the barrel wall of the fixed barrel (6) by taking the axis of the fixed barrel (6) as a symmetric center, the connecting holes (16) are distributed in the axial direction of the barrel wall of the fixed barrel (6) at equal intervals, inner-layer connecting holes (17) matched with the connecting holes (16) are formed in the bottom end of the anti-collision barrel (7), and the connecting holes (16) and the inner-layer connecting holes (17) matched with each other are penetrated through and fixed through detachable fasteners (18).

4. The crash-proof crown block as claimed in claim 3, wherein: a plurality of key grooves (19) are symmetrically formed in the inner wall of the fixed barrel (6) along the axial direction, a plurality of protruding flat keys (20) are correspondingly arranged on the outer wall of the anti-collision barrel (7) close to the bottom end, the flat keys (20) are connected with the key grooves (19) in a sliding mode, the connecting holes (16) are formed in the key grooves, and the inner layer connecting holes (17) are formed in the protruding flat keys (20) of the anti-collision barrel (7).

5. The crash-proof crown block as claimed in claim 1, wherein: the buffer device (5) is symmetrically provided with mounting holes (21), and the buffer device (5) is mounted on the frame through bolts.

6. The crash-proof crown block as claimed in claim 1, wherein: the collision head (8) is wrapped with a rubber pad (22).