CN212769494U - Anti-collision device for crane - Google Patents
Anti-collision device for crane Download PDFInfo
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- CN212769494U CN212769494U CN202021510297.3U CN202021510297U CN212769494U CN 212769494 U CN212769494 U CN 212769494U CN 202021510297 U CN202021510297 U CN 202021510297U CN 212769494 U CN212769494 U CN 212769494U
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- rod
- fixed
- cross beam
- trolley
- stop lever
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Abstract
The utility model relates to a hoisting equipment technical field, concretely relates to collision device for crane. The trolley is arranged on the cross beam in a sliding mode, the upper end of the end portion of the cross beam is fixedly provided with a fixed block, a top plate is arranged between the fixed block and the trolley, a transverse polish rod and a slide rod are vertically fixed on the top plate, the polish rod and the slide rod penetrate through the fixed block and are in sliding connection with the fixed block, an upper spring is sleeved on the polish rod between the top plate and the fixed block, and the slide rod is arranged in an elongated slot at the lower end of the fixed block. The utility model discloses, simple structure, convenient to use, the dolly is relatively more stable after being cushioned, can prevent to make the dolly move back under the spring action of last spring after the dolly is cushioned, can prevent that the goods amplitude of fluctuation of handling is too big on the dolly, has improved the security of handling goods.
Description
Technical Field
The utility model relates to a hoisting equipment technical field, concretely relates to collision device for crane.
Background
The crane plays an important role in industrial production and material handling, in order to improve the safety of a crane trolley in the operation process, ensure the safety of lives and properties, ensure the normal operation of the crane and improve the production efficiency, two ends of the crane trolley are provided with anti-collision devices, and when the crane trolley operates, if an accidental collision accident occurs, an effective protection and buffering effect can be achieved; therefore, it is very necessary to provide an anti-collision device for a crane trolley, which can effectively balance the force applied to the crane trolley in unilateral collision, reduce the derailment, rollover and even falling accident rate of the crane trolley and improve the safety and stability of the crane trolley. The existing anti-collision device generally depends on the elasticity of a spring to buffer the trolley, the trolley is easy to return under the action of the elasticity of the spring, the stability of the trolley after being buffered is poor, the cargoes lifted by the trolley are easy to swing greatly, and the lifting process is unsafe.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure, convenient to use, the dolly is relatively more stable after being cushioned, can prevent the too big collision device for the hoist of goods swing width of handling on the dolly.
In order to realize the purpose, the utility model provides a technical scheme is:
an anti-collision device for a crane comprises a cross beam, wherein a trolley is arranged on the cross beam in a sliding manner, fixed blocks are fixed at the upper ends of the end parts of the cross beam, top plates are arranged between the fixed blocks and the trolley, a transverse polish rod and a slide rod which are arranged up and down are fixed on the top plates, the polish rod and the slide rod penetrate through the fixed blocks and are in sliding connection with the fixed blocks, an upper spring is sleeved on the polish rod between the top plates and the fixed blocks, the slide rod is arranged in a long groove at the lower end of the fixed blocks in a sliding manner, a plurality of ratchets are fixed at the lower end of the slide rod, a vertical ejector rod penetrates through the upper end of the cross beam at one side of the top plates, the upper end of the ejector rod is rotatably connected with a guide wheel, a vertical stop rod penetrates through the upper end of the cross beam below the long groove, the lower end of the stop lever is fixed with a lower spring, the lower end of the lower spring is in contact with the upper end of the swing rod part below the lower spring, pull rods are fixed on the front side and the rear side of the lower end of the stop lever, the swing rods are located between the two pull rods, and the lower parts of the front pull rod and the rear pull rod are bent by 90 degrees relatively to block the swing rods.
Specifically, the left side and the right side of the end face, opposite to the upper end of the cross beam, of the trolley are respectively provided with a rolling support piece, each rolling support piece comprises two rotating wheels which are symmetrical front and back, the rotating wheels are rotatably connected to the trolley, and the two rotating wheels of each rolling support piece are located on two sides of the ejector rod.
Specifically, transverse sliding grooves are formed in the front and rear groove walls of the long groove, transverse sliding strips are fixed on the front and rear end faces of the sliding rod, and the sliding strips are arranged in the sliding grooves in a sliding mode.
Specifically, a blocking disc is fixed at the left end of the polish rod.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses, simple structure, convenient to use, the dolly is relatively more stable after being cushioned, can prevent to make the dolly move back under the spring action of last spring after the dolly is cushioned, can prevent that the goods amplitude of fluctuation of handling is too big on the dolly, has improved the security of handling goods.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the matching of the stop lever and the swing lever.
Detailed Description
As shown in fig. 1-2, an anti-collision device for a crane comprises a beam 1, wherein a trolley 2 is slidably arranged on the beam 1, fixed blocks 19 are fixed at the upper ends of the end portions of the beam 1, a top plate 14 is arranged between the fixed blocks 19 and the trolley 2, a polish rod 12 and a slide rod 10 are fixed on the top plate 14, the polish rod 12 and the slide rod 10 are vertically arranged, the polish rod 12 and the slide rod 10 penetrate through the fixed blocks 19 and are slidably connected with the fixed blocks 19, an upper spring 13 is sleeved on the polish rod 12 between the top plate 14 and the fixed blocks 19, a baffle disc 20 is fixed at the left end of the polish rod 12, the slide rod 10 is slidably arranged in a long groove 18 at the lower end of the fixed blocks 19, transverse sliding grooves are formed in the front and rear groove walls of the long groove 18, transverse sliding bars 11 are fixed on the front and rear end surfaces of the slide rod 10, a plurality, the upper end of the ejector rod 4 is rotatably connected with a guide wheel 5, the ejector rod 4 is connected with the upper end of the cross beam 1 in a sliding manner, the upper end of the cross beam 1 below the long groove 18 is provided with a vertical stop lever 8 in a penetrating manner, the upper end face of the stop lever 8 is an inclined plane 9 matched with the ratchet 15, the cross beam 1 is rotatably provided with a swing rod 7, the ejector rod 4 and the stop lever 8 are positioned above the swing rod 7, the end part of the swing rod 7 close to the ejector rod 4 is connected with the upper end of the cross beam 1 through a tension spring 6, the lower end of the stop lever 8 is fixed with a lower spring 17, the lower end of the lower spring 17 is in contact with the upper end of the swing rod 7 below the lower end of the lower spring, the front side and the rear side.
The trolley is characterized in that rolling support pieces are arranged on the left side and the right side of the end face, opposite to the upper end of the cross beam 1, of the trolley 2, the rolling support pieces comprise two rotating wheels 3 which are symmetrical front and back, the rotating wheels 3 are rotatably connected to the trolley 2, and the two rotating wheels 3 of the rolling support pieces are located on two sides of the ejector rod 4.
When the utility model is used, when the trolley 2 moves to one side of the end part of the cross beam 1 and is close to the top plate 14, the end surface of the trolley opposite to the upper end of the cross beam 1 enables the lower end of the top rod 4 to move towards the inside of the cross beam 1 through the guide wheel 5 on the top rod 4, the lower end of the top rod 4 enables one end of the swing rod 7 below the top rod to descend, the tension spring 6 is stretched, when the trolley 2 enables the top rod 4 to descend through the guide wheel 5, the trolley 2 can be buffered to a certain extent under the tension of the tension spring 6, the lower end of the top rod 4 enables one end of the swing rod 7 below the top rod to descend, simultaneously, one end of the swing rod 7 below the stop rod 8 ascends, the swing rod 7 enables the stop rod 8 to ascend through the lower spring 17, thereby enabling the upper end of the stop rod 8 to be matched with the ratchet 15 at the lower end of, the trolley 2 is buffered under the action of the elastic force of the upper spring 13, meanwhile, the ratchet 15 on the sliding rod 10 intermittently enables the stop lever 8 to extrude the lower spring 17 to move downwards, and when the trolley 2 is static, the upper end of the stop lever 8 is matched with the ratchet 15 to prevent the sliding rod 10, the polished rod 12 and the top plate 14 from moving towards the direction of the trolley 2, so that the trolley 2 is prevented from moving back under the action of the elastic force of the upper spring 13 after the trolley 2 is buffered, and the swinging of the hoisted goods is prevented from being too large.
When the trolley 2 is far away from the fixed block 19, after the guide wheel 5 at the upper end of the ejector rod 4 is separated from the trolley 2, the tension spring 6 enables the swing rod 7 to swing, the end part of the swing rod 7 at one side of the ejector rod 4 goes upwards, the end part of the swing rod 7 at one side of the stop lever 8 goes downwards, the end part of the swing rod 7 at one side of the stop lever 8 acts on the bent part at the lower end of the pull rod 16 to enable the stop lever 8 to descend, the upper end of the stop lever 8 is separated from the ratchet 15, and the top plate 14. After the trolley 2 is separated from the guide wheel 5, in order to enable the top plate 14 to be restored, the tension of the tension spring 6 needs to be larger than the pressure of the ratchet 15 on the upper end of the stop lever 8 when the upper spring 13 is in a compressed state, and it is ensured that the tension spring 6 can enable the upper end of the stop lever 8 to overcome the pressure of the ratchet 15 on the upper end of the stop lever 8 through the swing rod 7 and the pull rod 16 and then enable the stop lever 8 to move downwards when the upper spring 13 is in the.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. An anti-collision device for a crane comprises a cross beam (1) and is characterized in that a trolley (2) is arranged on the cross beam (1) in a sliding mode, fixed blocks (19) are fixed to the upper ends of the end portions of the cross beam (1), a top plate (14) is arranged between each fixed block (19) and the trolley (2), a polish rod (12) and a slide rod (10) which are arranged up and down are fixed to the top plate (14), the polish rod (12) and the slide rod (10) penetrate through the fixed blocks (19) and are in sliding connection with the fixed blocks, an upper spring (13) is sleeved on the polish rod (12) between the top plate (14) and the fixed blocks (19), the slide rod (10) is arranged in a long groove (18) in the lower end of the fixed blocks (19) in a sliding mode, a plurality of ratchets (15) are fixed to the lower end of the slide rod (10), a vertical ejector rod (4), the push rod (4) is connected with the upper end of the cross beam (1) in a sliding mode, the upper end of the cross beam (1) below the long groove (18) is provided with a vertical stop lever (8) in a penetrating mode, the upper end face of the stop lever (8) is an inclined plane (9) matched with the ratchet (15), the cross beam (1) is provided with a swing rod (7) in a rotating mode, the push rod (4) and the stop lever (8) are located above the swing rod (7), the end portion, close to the push rod (4), of the swing rod (7) is connected with the upper end of the cross beam (1) through a tension spring (6), the lower end of the stop lever (8) is fixed with a lower spring (17), the lower end of the lower spring (17) is in contact with the upper end of the portion, below the swing rod (7), pull rods (16) are fixed to the front side and the rear side of the lower end of the stop lever (8).
2. The anti-collision device for the crane is characterized in that rolling support members are arranged on the left side and the right side of the end face, opposite to the upper end of the cross beam (1), of the trolley (2), the rolling support members comprise two rotating wheels (3) which are symmetrical front and back, the rotating wheels (3) are rotatably connected to the trolley (2), and the two rotating wheels (3) of the rolling support members are located on two sides of the ejector rod (4).
3. The anti-collision device for the crane according to claim 1, wherein the front and rear walls of the long slot (18) are provided with transverse sliding grooves, the front and rear end surfaces of the sliding rod (10) are fixed with transverse sliding bars (11), and the sliding bars (11) are slidably arranged in the sliding grooves.
4. The collision preventing device for the crane according to claim 1, wherein a stop disc (20) is fixed at the left end of the polish rod (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021510297.3U CN212769494U (en) | 2020-07-28 | 2020-07-28 | Anti-collision device for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021510297.3U CN212769494U (en) | 2020-07-28 | 2020-07-28 | Anti-collision device for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212769494U true CN212769494U (en) | 2021-03-23 |
Family
ID=75039618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021510297.3U Active CN212769494U (en) | 2020-07-28 | 2020-07-28 | Anti-collision device for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212769494U (en) |
-
2020
- 2020-07-28 CN CN202021510297.3U patent/CN212769494U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Block 9, 113 Caihong Avenue, West District, Zhongshan City, Guangdong Province, 528400 Patentee after: Guangdong Yili heavy lifting machinery Co.,Ltd. Address before: Block 9, 113 Caihong Avenue, West District, Zhongshan City, Guangdong Province, 528400 Patentee before: ZHONGSHAN THE POWER CAPACITY OF THE HEAVY LIFTING MACHINERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |