Clamp for detecting tension of steel strand of crane

Abstract

The utility model relates to the technical field of steel strand tension detection, and discloses a crane steel strand tension detection clamp, which comprises a clamp and a fixed plate bolted on one side of the clamp, and further comprises a steel wire rope movably connected in the clamp, one end of the steel wire rope is fixedly connected with a connecting shell, the top of the clamp is bolted with a fixed shell, and the fixed shell is fixedly connected with the steel wire rope. One side of the fixed shell is movably connected with a mounting shell; through the cooperation of the limiting mechanism, the movable shell, the limiting groove and the connecting shell, the steel wire rope can be effectively prevented from sliding during detection, so that the accuracy of the steel wire rope detection tension is improved, meanwhile, through the cooperation of the rotating mechanism, the fixed shell and the mounting shell, a worker can conveniently replace the clamp, and the working efficiency is improved. The labor amount of workers is reduced, the speed of detecting the steel wire rope by the workers is increased, and the problems that the steel wire rope is prone to sliding when an existing clamp is used for detection, and the clamp is inconvenient to replace are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strand tension detection, in particular to a clamp for crane steel strand tension detection. Background Art

[0002] After the production of crane steel strands is completed, in order to detect whether the steel strands meet the use requirements, tension testing is generally carried out before they are put on the market. Tensile testing often uses a special tension testing device, which is mainly composed of a machine body, upper and lower clamps, a cylinder, a control system and a computing terminal. The tension is measured by a tension sensor and the tension is fed back to the computing terminal.

[0003] However, when most of the clamps for testing the tensile force of steel strands of cranes are put into use, the steel strands need to be clamped in the clamps, and the clamps on both sides drive the steel strands to move in opposite directions at the same time to test the tensile force. However, during the test, the steel strands are prone to slip under the action of the tensile force, which can easily lead to deviations in the tested tensile force.

[0004] At the same time, when different types of steel strands need to be tested, the clamps need to be replaced for clamping. However, the staff use tools to match multiple screws and nuts to replace them, which not only increases the workload of the staff, but also slows down the rate at which the staff detects the tension of the steel strands. Utility Model Content

[0005] The utility model aims to provide a clamp for detecting the tension of crane steel strands to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a clamp for detecting the tension of a crane steel strand, comprising a clamp and a fixing plate bolted to one side of the clamp, and also comprising:

[0007] A steel wire rope movably connected to the inside of the clamp, one end of the steel wire rope is fixedly connected to a connecting shell, the top of the clamp is bolted to a fixing shell, one side of the fixing shell is movably connected to a mounting shell, and the top of the mounting shell is bolted to a fixing block;

[0008] A rotating mechanism is arranged in the inner cavity of the mounting shell, a connecting block is fixed on the top of the connecting shell, a movable shell is bolted to one side of the connecting block, a limiting mechanism is arranged in the inner cavity of the movable shell, and a limiting groove is opened on one side of the fixing plate.

[0009] Preferably, the rotating mechanism comprises a bevel gear rotating in the inner cavity of the mounting shell, a first gear ring is meshed on one side of the bevel gear, a second gear ring is fixed on one side of the first gear ring, and a connecting component is provided on one side of the second gear ring.

[0010] Preferably, the connecting component includes a spur gear meshed with one side of the second gear ring. A threaded rod is fixed to one side of the spur gear. A nut is threadedly connected to the surface of the threaded rod. The surface of the nut is fixedly connected to the inner cavity of the fixed shell.

[0011] Preferably, the limiting mechanism includes a slider slidably connected to the inner cavity of the moving shell. A compression spring is fixed to one side of the slider. The side of the compression spring is fixedly connected to the inner cavity of the moving shell. A manual rod is bolted to one side of the slider.

[0012] Preferably, the number of the spur gears is several and they are distributed in a circular array around the central axis of the mounting shell.

[0013] Preferably, a guide rod is fixed to the inner cavity of the moving shell. The surface of the guide rod is slidably connected to the inner cavity of the slider. The guide rod is located at the central part of the compression spring.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] Through the cooperation of the limiting mechanism, the moving shell, the limiting groove and the connecting shell, the present utility model can effectively prevent the steel wire rope from sliding during detection, thereby improving the accuracy of the detected tensile force of the steel wire rope. At the same time, through the cooperation of the rotating mechanism, the fixed shell and the mounting shell, it is convenient for the staff to replace the fixture, reducing the labor intensity of the staff and also accelerating the detection rate of the steel wire rope by the staff, solving the problems that the existing fixture is prone to steel wire rope sliding during detection and it is inconvenient to replace the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is the cross-sectional structural schematic diagram of the mounting shell of the present utility model;

[0018] Figure 3 is the structural schematic diagram of the rotating mechanism of the present utility model;

[0019] Figure 4 is the structural schematic diagram of the limiting mechanism of the present utility model.

[0020] In the figure: 1. Fixture; 2. Fixed plate; 3. Steel wire rope; 4. Connection shell; 5. Fixed shell; 6. Installation shell; 7. Rotating mechanism; 71. Bevel gear; 72. First gear ring; 73. Second gear ring; 74. Connection component; 741. Spur gear; 742. Threaded rod; 743. Nut; 8. Fixed block; 9. Connection block; 10. Moving shell; 11. Limiting mechanism; 111. Slide block; 112. Compression spring; 113. Manual rod; 12. Guide rod; 13. Limiting groove. Detailed implementation manner

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1-4 As shown, a fixture for detecting the tensile force of a steel strand of a crane includes a fixture 1. One side of the fixture 1 is bolted with a fixed plate 2. The inside of the fixture 1 is movably connected with a steel wire rope 3. The fixture 1 can clamp the steel wire rope 3, so as to detect the tensile force of the steel wire rope 3. One end of the steel wire rope 3 is fixedly connected with a connection shell 4. The connection shell 4 can prevent the steel wire rope 3 from sliding during the test, thereby improving the effect of detecting the tensile force of the steel wire rope 3. The top of the fixture 1 is bolted with a fixed shell 5. One side of the fixed shell 5 is movably connected with an installation shell 6. The top of the installation shell 6 is bolted with a fixed block 8. A rotating mechanism 7 is arranged in the inner cavity of the installation shell 6. Under the action of the rotating mechanism 7, the fixed shell 5 and the installation shell 6 can be mutually attached and connected, which is convenient for the staff to replace the fixture 1, speeds up the staff's detection of different types of steel wire ropes 3, and thus increases the use effect of the fixture 1. The top of the connection shell 4 is fixed with a connection block 9. One side of the connection block 9 is bolted with a moving shell 10. A limiting mechanism 11 is arranged in the inner cavity of the moving shell 10. A limiting groove 13 is opened on one side of the fixed plate 2. Under the action of the limiting mechanism 11, the moving shell 10 can move into the limiting groove 13, thereby effectively preventing the steel wire rope 3 from sliding during the test, improving the accuracy of detecting the tensile force of the steel wire rope 3, and thus increasing the use effect of the fixture 1.

[0023] The rotating mechanism 7 includes a bevel gear 71. One side of the bevel gear 71 is rotatably connected to the inner cavity of the mounting shell 6. A first gear ring 72 is meshed with one side of the bevel gear 71. A second gear ring 73 is fixed to one side of the first gear ring 72. A connecting component 74 is arranged on one side of the second gear ring 73. With the cooperation of the bevel gear 71 and the first gear ring 72, the second gear ring 73 can be rotated. And with the cooperation of the connecting component 74, the fixed shell 5 and the mounting shell 6 can be tightly attached to each other, which facilitates the staff to replace the fixture 1, reduces the workload of the staff, speeds up the rate at which the staff detects the wire rope 3, and thus improves the use effect of the fixture 1.

[0024] The connecting component 74 includes spur gears 741. One side of each spur gear 741 is meshed with one side of the second gear ring 73. The number of spur gears 741 is several and they are distributed in a circular array around the central axis of the mounting shell 6. A threaded rod 742 is fixed to one side of each spur gear 741. A nut 743 is threadedly connected to the surface of the threaded rod 742. The surface of the nut 743 is fixedly connected to the inner cavity of the fixed shell 5. Under the action of the second gear ring 73, multiple spur gears 741 can drive the threaded rods 742 to rotate simultaneously, so that the threaded rods 742 and the nuts 743 can be connected to each other, making the fixed shell 5 and the mounting shell 6 fit together, which facilitates the staff to replace the fixture 1, reduces the workload of the staff, and speeds up the rate at which the staff detects the tensile force of the wire rope 3.

[0025] The limiting mechanism 11 includes a slider 111. The surface of the slider 111 is slidably connected to the inner cavity of the moving shell 10. A compression spring 112 is fixed to one side of the slider 111. One side of the compression spring 112 is fixedly connected to the inner cavity of the moving shell 10. A manual rod 113 is bolted to one side of the slider 111. Under the action of the manual rod 113, the slider 111 can drive the compression spring 112 to be compressed, enabling the slider 111 to move into the inner cavity of the moving shell 10, so that the moving shell 10 can move into the limiting groove 13. Subsequently, under the action of the rebound of the compression spring 112, the slider 111 can return to its original position, making the slider 111 fit tightly against the inner wall of the limiting groove 13, thus effectively preventing the wire rope 3 from sliding during detection, improving the effect of the fixture 1 in detecting the tensile force of the wire rope 3. A guide rod 12 is fixedly connected to the inner cavity of the moving shell 10. The surface of the guide rod 12 is slidably connected to the inner cavity of the slider 111. The guide rod 12 is located at the central part of the compression spring 112, effectively preventing the compression spring 112 from shifting in position during operation, increasing the stability of the limiting mechanism 11, and thus increasing the stability of the fixture 1.

[0026] Working principle: First, when the staff needs to install the corresponding fixture 1 on the detection device, the first gear ring 72 is driven by the bevel gear 71 to drive the second gear ring 73 to rotate. Subsequently, the second gear ring 73 drives the threaded rod 742 to rotate through the spur gear 741, connecting the spur gear 741 with the nut 743, so that the fixed shell 5 and the mounting shell 6 are closely attached to each other, enabling the fixture 1 to be fixed on the detection device. When the detection starts, the steel wire rope 3 whose tensile force needs to be detected is fixed inside the connecting shell 4. Then, the connecting shell 4 is moved into the fixture 1. Under the action of the manual rod 113, the sliders 111 on both sides can drive the compression springs 112 to be compressed, enabling the sliders 111 to enter the moving shell 10. Thus, the moving shell 10 and the sliders 111 can move into the limiting groove 13. Subsequently, under the action of the rebound of the compression spring 112, the sliders 111 can return to their original positions and fit against the inner wall of the limiting groove 13, preventing the steel wire rope 3 from sliding during the detection. When the detection is completed, just turn off the detection device.

[0027] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A clamp for detecting the tension of a crane steel strand, comprising a clamp (1) and a fixing plate (2) bolted to one side of the clamp (1), characterized in that: Also includes: A steel wire rope (3) movably connected to the inside of the clamp (1), one end of the steel wire rope (3) being fixedly connected to a connecting shell (4), a fixing shell (5) being bolted to the top of the clamp (1), one side of the fixing shell (5) being movably connected to a mounting shell (6), and a fixing block (8) being bolted to the top of the mounting shell (6); A rotating mechanism (7) is arranged in the inner cavity of the mounting shell (6); a connecting block (9) is fixed on the top of the connecting shell (4); a movable shell (10) is bolted to one side of the connecting block (9); a limiting mechanism (11) is arranged in the inner cavity of the movable shell (10); and a limiting groove (13) is provided on one side of the fixing plate (2).

2. A clamp for detecting the tension of a crane steel strand according to claim 1, characterized in that: The rotating mechanism (7) comprises a bevel gear (71) rotating in the inner cavity of the mounting shell (6); a first gear ring (72) is meshed on one side of the bevel gear (71); a second gear ring (73) is fixed on one side of the first gear ring (72); and a connecting component (74) is provided on one side of the second gear ring (73).

3. A clamp for detecting the tension of a crane steel strand according to claim 2, characterized in that: The connecting assembly (74) comprises a spur gear (741) meshed with one side of the second gear ring (73); a threaded rod (742) is fixed to one side of the spur gear (741); a nut (743) is threadedly connected to the surface of the threaded rod (742); and a surface of the nut (743) is fixedly connected to the inner cavity of the fixed shell (5).

4. A clamp for detecting the tension of a crane steel strand according to claim 1, characterized in that: The limiting mechanism (11) comprises a slider (111) slidably connected to the inner cavity of the moving shell (10), a compression spring (112) is fixed to one side of the slider (111), one side of the compression spring (112) is fixedly connected to the inner cavity of the moving shell (10), and a manual rod (113) is bolted to one side of the slider (111).

5. A clamp for detecting the tension of a crane steel strand according to claim 3, characterized in that: The number of the spur gears (741) is several and they are distributed in a circular array around the central axis of the mounting shell (6).

6. A clamp for detecting the tension of a crane steel strand according to claim 4, characterized in that: A guide rod (12) is fixed to the inner cavity of the movable shell (10), the surface of the guide rod (12) is slidably connected to the inner cavity of the slider (111), and the guide rod (12) is located at the center of the compression spring (112).

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