CN220912852U - Protection device for crane tension test - Google Patents
Protection device for crane tension test Download PDFInfo
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- CN220912852U CN220912852U CN202322440060.2U CN202322440060U CN220912852U CN 220912852 U CN220912852 U CN 220912852U CN 202322440060 U CN202322440060 U CN 202322440060U CN 220912852 U CN220912852 U CN 220912852U
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- tension
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- 238000012360 testing method Methods 0.000 title claims description 44
- 238000009864 tensile test Methods 0.000 claims abstract description 19
- 230000002457 bidirectional effect Effects 0.000 claims description 13
- 230000001012 protector Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 29
- 239000010959 steel Substances 0.000 abstract description 29
- 238000000034 method Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a protection device for a crane tensile test, which relates to the technical field of tensile tests and comprises a tensile test machine main body, wherein a protection component is arranged on the tensile test machine main body, a bearing plate can be vertically and slidably arranged on the tensile test machine main body, the protection component is arranged on the bearing plate, the protection component comprises two fixing frames, shielding plates, sliding grooves, two-way screw rods and driving motors, the number of the two fixing frames is two, the two fixing frames are slidably arranged on the bearing plate, the shielding plates are fixedly arranged on the fixing frames, the sliding grooves are formed in the bearing plate, and the two-way screw rods are rotatably arranged in the sliding grooves. According to the utility model, the steel wire rope can be limited between the two shielding plates in the tensile test process, so that the splashing direction of the steel wire rope during fracture is limited, and the steel wire rope can be fully and effectively protected by the full detection.
Description
Technical Field
The utility model relates to the technical field of tension tests, in particular to a protection device for a crane tension test.
Background
The crane is a multi-action hoisting machine for vertically hoisting and horizontally carrying heavy objects in a certain range, and mainly comprises a hoisting mechanism, an operating mechanism, an amplitude changing mechanism, a slewing mechanism, a metal structure and the like, wherein the hoisting mechanism is a basic working mechanism of the crane and mostly consists of a hanging system and a winch, and before the crane is put into use, the tension of the crane is required to be checked and tested so as to ensure the safety of the crane.
When the steel wire rope and the hook of the crane are subjected to tension test, the maximum tension value which can be borne by the steel wire rope and the hook is required to be tested, and when the steel wire rope is broken after being subjected to the maximum tension value, potential safety hazards exist when the steel wire rope is broken suddenly, once the steel wire rope is broken, the test block and the hook can fall down at a high speed, serious accidents are easy to cause, and the detection and test risks are increased.
The prior Chinese patent (bulletin number: CN 219327991U) proposes a crane tension test device, which comprises a test mechanism and a protection mechanism, wherein the protection mechanism is added, once a hoisting steel wire rope of a crane breaks, a test block and the protection mechanism move downwards rapidly under the action of self gravity, so that the test block and the lifting hook are prevented from falling, the potential safety hazard existing in the crane tension test process is greatly reduced, and the safety of the test is improved.
The crane tension checking and testing device has the following defects when in use: after the steel wire rope receives the maximum pulling force value, then can fracture, because the steel wire rope pulling force is great can appear the steel wire rebound after breaking, the steel wire is thrown away under unprotected owing to the resilience after the fracture, increases the danger of detection test, and for this reason, we propose a protector for crane pulling force test to solve above-mentioned problem.
Disclosure of utility model
The utility model provides a protection device for testing the tension of a crane, which solves the technical problems that a steel wire rope can be broken after being subjected to the maximum tension value, steel wire rebound inevitably occurs after the steel wire rope is broken due to the large tension of the steel wire rope, and the steel wire is thrown away under the condition of no protection due to rebound after the steel wire rope is broken, so that the detection and test risks are increased.
In order to solve the technical problems, the protection device for the crane tension test comprises a tension tester main body, wherein a protection component is arranged on the tension tester main body, a bearing plate is vertically and slidably arranged on the tension tester main body, the protection component is arranged on the bearing plate and comprises two fixing frames, a shielding plate, a sliding chute, two bidirectional screw rods and a driving motor, the two fixing frames are slidably arranged on the bearing plate, the shielding plate is fixedly arranged on the fixing frames, the sliding chute is arranged on the bearing plate, the bidirectional screw rods are rotatably arranged in the sliding chute, the driving motor is fixedly arranged in the sliding chute, the driving end of the driving motor is fixedly connected with one end of the bidirectional screw rods, and the fixing frames are in threaded connection with the bidirectional screw rods.
Preferably, the tensile testing machine main body comprises a base, fixed blocks, hooks, supporting beams, a sliding column, a bottom ring, hanging rings and a tension sensor, wherein the fixed blocks are fixedly installed at the top of the base, the hooks are fixedly installed at the top of the fixed blocks, the supporting beams are symmetrically and fixedly installed at the top of the base, the bearing plates are arranged between the two supporting beams in a sliding mode, the sliding column is vertically and slidingly arranged on the bearing plates, the bottom ring is rotatably installed at the bottom end of the sliding column, the hanging rings are fixedly installed at the top end of the sliding column, the tension sensor is sleeved and installed on the sliding column, the top end of the tension sensor is fixedly connected with the bottom of the hanging rings, and the bottom end of the tension sensor is fixedly connected with the top surface of the bearing plate.
Preferably, the protection component further comprises a second shielding plate, a third shielding plate, an electric telescopic rod and a connecting plate, wherein the second shielding plate is arranged on the inner wall of the shielding plate in a limiting sliding manner, the third shielding plate is arranged on the inner wall of the second shielding plate in a limiting sliding manner, the electric telescopic rod is fixedly installed at the top of the fixing frame, the connecting plate is fixedly installed at the telescopic end of the electric telescopic rod, and one side of the electric telescopic rod is fixedly connected with the outer wall of the top end of the third shielding plate.
Preferably, the shielding plate and the second shielding plate are provided with limiting grooves, the second shielding plate is arranged in the limiting grooves formed in the shielding plate in a sliding mode, and the third shielding plate is arranged in the limiting grooves formed in the second shielding plate in a sliding mode.
Preferably, the shielding plate is made of semi-arc-shaped plates, and the shielding plate is made of stainless steel.
Preferably, the bottom end of the fixing frame is provided with a threaded hole, and the fixing frame is in threaded connection with the bidirectional screw rod through the threaded hole.
Preferably, the side wall of the bearing plate is provided with a guide block, and the inner side wall of the supporting beam is provided with a guide groove for the guide block to slide.
Compared with the related art, the protection device for the crane tensile test has the following beneficial effects:
According to the utility model, the bidirectional screw rod is driven to rotate by the driving motor, the bidirectional screw rod drives the fixing frame in threaded connection with the bidirectional screw rod to horizontally slide in the sliding groove, and as the sliding groove is provided with two sections of threads with opposite thread directions, the two fixing frames can be driven to relatively move when the sliding groove rotates, the fixing frames drive the shielding plates on the fixing frames to butt against each other, so that the steel wire rope can be limited between the two shielding plates in the tensile testing process, the splashing direction of the steel wire rope in breaking is limited, and the steel wire rope can be comprehensively and effectively protected by detecting the whole steel wire rope.
According to the utility model, the connecting plate can be pushed to move upwards by extending the electric telescopic rod, the connecting plate drives the third shielding plate to move upwards, and when the third shielding plate moves to the limit position, the second shielding plate is pulled to move upwards, so that the whole length of the shielding plate can be prolonged, the protection range of the steel wire rope can be enlarged, and the protection effect is improved.
Drawings
FIG. 1 is a schematic perspective view of a protection device for testing the tensile force of a crane;
FIG. 2 is a schematic perspective view of a protection device for testing the tensile force of a crane;
FIG. 3 is a schematic view of a middle protection assembly of a protection device for testing crane tension;
Fig. 4 is a schematic cross-sectional view of a middle shielding plate of a protection device for testing the tensile force of a crane.
Reference numerals in the drawings: 1. a base; 2. a fixed block; 3. a hook; 4. a support beam; 5. a carrying plate; 6. a spool; 7. a bottom ring; 8. hanging rings; 9. a tension sensor; 10. a fixing frame; 11. a shielding plate; 12. a chute; 13. a two-way screw rod; 14. a driving motor; 15. a second shutter; 16. a third shutter; 17. an electric telescopic rod; 18. and (5) connecting a plate.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
The first embodiment is given by fig. 1-4, a protection device for crane tension test, including the tensile testing machine main part, but be provided with the protection component in the tensile testing machine main part, but vertical sliding is provided with loading board 5 in the tensile testing machine main part, the protection component sets up on loading board 5, the protection component includes mount 10, shielding plate 11, spout 12, two-way lead screw 13 and driving motor 14, the quantity of mount 10 is two, two mounts 10 all slide and set up on loading board 5, shielding plate 11 fixed mounting is on mount 10, spout 12 is offered on loading board 5, two-way lead screw 13 rotates the inside of installing at spout 12, driving motor 14 fixed mounting is in the inside of spout 12, driving motor 14's drive end and one end fixed connection of two-way lead screw 13, mount 10 threaded connection is on two-way lead screw 13.
The tensile testing machine main body comprises a base 1, a fixed block 2, hooks 3, supporting beams 4, sliding columns 6, bottom rings 7, hanging rings 8 and a tension sensor 9, wherein the fixed block 2 is fixedly arranged at the top of the base 1, the hooks 3 are fixedly arranged at the top of the fixed block 2, the supporting beams 4 are symmetrically and fixedly arranged at the top of the base 1, a bearing plate 5 is arranged between the two supporting beams 4 in a sliding manner, the sliding columns 6 are vertically and slidably arranged on the bearing plate 5, the bottom rings 7 are rotatably arranged at the bottom ends of the sliding columns 6, the hanging rings 8 are fixedly arranged at the top ends of the sliding columns 6, the tension sensor 9 is sleeved and arranged on the sliding columns 6, the top ends of the tension sensor 9 are fixedly connected with the bottom parts of the hanging rings 8, and the bottom ends of the tension sensor 9 are fixedly connected with the top surfaces of the bearing plate 5;
when the device is used for testing the steel wire rope and the lifting hook of the crane, the testing device is required to be stably placed on the ground, when a tensile force test is carried out, the bottom ring 7 is connected with the lifting test block, the lifting hook of the crane is connected with the hanging ring 8 at the top, the lifting test block is lifted by the crane, and the hanging ring 8 realizes accurate measurement of the tensile force of the crane through the tension sensor 9; the specific detection process can refer to the utility model patent with the patent publication number of (CN 219327991U), and how to test the tensile force of the crane belongs to the prior art, so that the utility model does not make excessive description;
In the process of testing the tensile force of the crane, the driving motor 14 drives the bidirectional screw rod 13 to rotate, the bidirectional screw rod 13 drives the fixing frame 10 in threaded connection with the bidirectional screw rod to horizontally slide in the sliding groove 12, and as the sliding groove 12 is provided with threads with opposite directions of two sections of threads, the two fixing frames 10 can be driven to move relatively when the sliding groove 12 rotates, the fixing frames 10 drive the shielding plates 11 on the fixing frames to butt against each other, so that a steel wire rope can be limited between the two shielding plates 11 in the tensile force testing process, the splashing direction of the steel wire rope during breakage is limited, and the steel wire rope can be subjected to full detection to realize omnibearing effective protection.
Screw holes are formed in the bottom end of the fixing frame 10, and the fixing frame 10 is in threaded connection with the bidirectional screw rod 13 through the screw holes.
The side wall of the bearing plate 5 is provided with a guide block, and the inner side wall of the supporting beam 4 is provided with a guide groove for the guide block to slide.
1-4, On the basis of the first embodiment, the protection assembly further comprises a second shielding plate 15, a third shielding plate 16, an electric telescopic rod 17 and a connecting plate 18, wherein the second shielding plate 15 is arranged on the inner wall of the shielding plate 11 in a limiting sliding manner, the third shielding plate 16 is arranged on the inner wall of the second shielding plate 15 in a limiting sliding manner, the electric telescopic rod 17 is fixedly arranged at the top of the fixing frame 10, the connecting plate 18 is fixedly arranged at the telescopic end of the electric telescopic rod 17, and one side of the electric telescopic rod 17 is fixedly connected with the outer wall of the top end of the third shielding plate 16;
In specific implementation, the electric telescopic rod 17 stretches to push the connecting plate 18 to move upwards, the connecting plate 18 drives the third shielding plate 16 to move upwards, when the third shielding plate 16 moves to the limit position, the second shielding plate 15 is pulled to move upwards, the whole length of the shielding plate 11 can be prolonged, the protection range of a steel wire rope can be enlarged, and the protection effect is improved.
Limiting grooves are formed in the shielding plate 11 and the second shielding plate 15, the second shielding plate 15 is arranged in the limiting groove formed in the shielding plate 11 in a sliding mode, and the third shielding plate 16 is arranged in the limiting groove formed in the second shielding plate 15 in a sliding mode.
The shielding plate 11 is made of a semi-arc-shaped plate, and the shielding plate 11 is made of stainless steel.
Working principle: when testing wire rope and lifting hook of hoist, need to place this testing arrangement steady in ground, when carrying out the tensile test, be connected bottom ring 7 with lift by crane test piece, lift by crane test piece with lifting hook 8 at top, the accurate measurement of hoist pulling force is realized through the tension sensor 9 to the lifting by crane test piece, through driving motor 14 drive two-way lead screw 13 rotation, two-way lead screw 13 drives the mount 10 rather than threaded connection's inside horizontal slip at spout 12, because be provided with the screw thread opposite in two sections screw thread directions on spout 12, consequently, can drive two mounts 10 relative movement when spout 12 rotates, mount 10 drives shielding plate 11 on it and dock mutually, and then can be spacing wire rope between two shielding plate 11 in the in-process of tensile test, the direction when having restricted wire rope fracture, through can be more whole root detection make the omnidirectional effective protection, can promote connecting plate 18 upwards move through electric telescopic handle 17 extension, connecting plate 18 drives third shielding plate 16 upwards to remove, when third shielding plate 16 removes limit position, can increase the whole protection effect that can be to the second shielding plate 15, and then the whole protection effect that can be increased to the length of shielding plate 11.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a protector for hoist tensile testing, includes tensile testing machine main part, its characterized in that, but be provided with protection component in the tensile testing machine main part, but vertical sliding is provided with loading board (5) in the tensile testing machine main part, protection component sets up on loading board (5), protection component includes mount (10), shielding plate (11), spout (12), two-way lead screw (13) and driving motor (14), the quantity of mount (10) is two, two mount (10) all slide setting on loading board (5), shielding plate (11) fixed mounting is on mount (10), spout (12) are seted up on loading board (5), inside at spout (12) is rotated to two-way lead screw (13), driving motor (14) fixed mounting is in the inside of spout (12), the drive end of driving motor (14) and the one end fixed connection of two-way lead screw (13), mount (10) threaded connection is on two-way lead screw (13).
2. The protection device for crane tension test according to claim 1, wherein the main body of the tension test machine comprises a base (1), a fixed block (2), a hook (3), a support beam (4), a slide column (6), a bottom ring (7), a hanging ring (8) and a tension sensor (9), wherein the fixed block (2) is fixedly arranged at the top of the base (1), the hook (3) is fixedly arranged at the top of the fixed block (2), the support beam (4) is symmetrically and fixedly arranged at the top of the base (1), the bearing plate (5) is slidably arranged between the two support beams (4), the slide column (6) is vertically slidably arranged on the bearing plate (5), the bottom ring (7) is rotatably arranged at the bottom end of the slide column (6), the hanging ring (8) is fixedly arranged at the top end of the slide column (6), the tension sensor (9) is sheathed on the slide column (6), the top end of the tension sensor (9) is fixedly connected with the bottom of the hanging ring (8), and the bottom end of the bearing plate (9) is fixedly connected with the top surface of the tension sensor (5).
3. The protection device for crane pulling force test according to claim 1, wherein the protection assembly further comprises a second shielding plate (15), a third shielding plate (16), an electric telescopic rod (17) and a connecting plate (18), wherein the second shielding plate (15) is arranged on the inner wall of the shielding plate (11) in a limiting sliding manner, the third shielding plate (16) is arranged on the inner wall of the second shielding plate (15) in a limiting sliding manner, the electric telescopic rod (17) is fixedly mounted at the top of the fixing frame (10), the connecting plate (18) is fixedly mounted at the telescopic end of the electric telescopic rod (17), and one side of the electric telescopic rod (17) is fixedly connected with the outer wall of the top end of the third shielding plate (16).
4. A crane tension testing protection device according to claim 3, wherein the shielding plate (11) and the second shielding plate (15) are provided with limiting grooves, the second shielding plate (15) is slidably arranged in the limiting groove formed in the shielding plate (11), and the third shielding plate (16) is slidably arranged in the limiting groove formed in the second shielding plate (15).
5. A crane tension testing protector according to claim 3, characterized in that the shielding plate (11) is made of semi-arc plate material, and the shielding plate (11) is made of stainless steel.
6. The protection device for crane pulling force test according to claim 1, wherein the bottom end of the fixing frame (10) is provided with a threaded hole, and the fixing frame (10) is in threaded connection with the bidirectional screw rod (13) through the threaded hole.
7. The protection device for crane pulling force test according to claim 2, wherein guide blocks are arranged on the side walls of the bearing plate (5), and guide grooves for sliding the guide blocks are formed in the inner side walls of the support beams (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322440060.2U CN220912852U (en) | 2023-09-08 | 2023-09-08 | Protection device for crane tension test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322440060.2U CN220912852U (en) | 2023-09-08 | 2023-09-08 | Protection device for crane tension test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220912852U true CN220912852U (en) | 2024-05-07 |
Family
ID=90914901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322440060.2U Active CN220912852U (en) | 2023-09-08 | 2023-09-08 | Protection device for crane tension test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220912852U (en) |
-
2023
- 2023-09-08 CN CN202322440060.2U patent/CN220912852U/en active Active
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