Tension test clamp for steel wire rope fastener

Abstract

The invention relates to the technical field of steel wire rope tension test fixtures, and discloses a steel wire rope fastener tension test fixture, which comprises a clamping mechanism used for bending the middle part of a steel wire rope through rotation and moving downwards to finish clamping and fixing operation of the steel wire rope after a concave shape is formed, so that the steel wire rope does not slip or dislocate when being longitudinally stressed; the connecting mechanism is arranged in the middle of the clamping mechanism and used for completing assembling of the clamping mechanism and providing connection between the clamping mechanism and the tensile machine, the clamping mechanism comprises a steel plate, a U-shaped steel groove is formed in the bottom of the steel plate, and a lower chuck and an upper chuck are sequentially and slidably connected to the interior of the U-shaped steel groove from bottom to top; and the middle part of the steel plate is in threaded connection with a tightening bolt. Through the clamping design in the horizontal direction and the optimized clamping mechanism, it is ensured that the steel wire rope is stably fixed under high-strength tension, slippage or dislocation is avoided, and the accuracy, reliability and detection efficiency of test data are improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel wire rope tension test fixtures, in particular to a steel wire rope fastener tension test fixture. Background Art

[0002] In modern industry, wire ropes are key components for carrying and transmitting force and are widely used in bridge construction, mine hoisting, lifting and transportation, and many other fields. Wire ropes need to withstand huge tensile forces during use. Therefore, in tensile tests, it is necessary to ensure that they can be firmly clamped when under force to avoid slippage or dislocation, and to ensure the accuracy and reliability of the test. In order to ensure the safety and performance of wire ropes, it is particularly important to design a tensile test fixture that can provide strong clamping and efficient connection.

[0003] Existing wire rope tension test fixtures usually rely on simple clamping structures, and most designs use more traditional clamps and connection methods to fix the wire rope. The advantages of these fixtures are simple structure, easy production, and preliminary fixation of the wire rope. However, the fixtures in the prior art mostly maintain the position of the wire rope through static clamping. Although they can maintain a basic fixing effect in daily tests, the stability of the clamping is not reliable under high tension or long-term stress.

[0004] Although the existing wire rope tension test fixture can work under low-intensity conditions through simple threaded connections and basic clamping methods, in a long-term, high-frequency tension environment, the clamping force between the chuck and the wire rope is insufficient, and slippage or dislocation is likely to occur; in addition, the existing connection structure is prone to loosening due to tension fluctuations, affecting the accuracy of the test. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a wire rope fastener tension test fixture, which solves the problem of unstable clamping, slippage or dislocation of the wire rope tension test fixture in the prior art under high-strength tension environment.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A wire rope fastener tension test fixture, comprising: The clamping mechanism is used to bend the middle part of the wire rope and move it downward by rotating to form a concave shape, thereby completing the clamping and fixing operation of the wire rope so that the wire rope will not slip or dislocate when subjected to longitudinal force; The connecting mechanism is arranged in the middle of the clamping mechanism and is used to complete the assembly of the clamping mechanism and provide a connection between the clamping mechanism and the tensile machine.

[0007] Preferably, the clamping mechanism includes a steel plate, a U-shaped steel groove is installed at the bottom of the steel plate, and the inside of the U-shaped steel groove is slidably connected with a lower clamp and an upper clamp in sequence from bottom to top. The middle part of the steel plate is threadedly connected with a tightening bolt, and one end of the tightening bolt close to the lower clamp is in contact with the upper clamp.

[0008] Preferably, the connecting mechanism includes a fastening screw and a connecting steel rod, the fastening screw is slidably connected to the middle part of the steel plate, the fastening screw and the U-shaped steel groove are threadedly connected, and the connecting steel rod is fixedly connected to a side of the steel plate away from the U-shaped steel groove.

[0009] Preferably, a through hole is opened in the middle of the steel plate, and the fastening screw is slidably connected to the middle of the through hole to provide space for the fastening screw to move in the steel plate.

[0010] Preferably, a thread groove is opened in the middle of the U-shaped steel channel, and the fastening screw is threadedly connected to the middle of the thread groove, so as to complete the connection between the steel plate and the U-shaped steel channel after the fastening screw is screwed in.

[0011] Preferably, one end of the tightening bolt away from the upper clamp is fixedly connected to a handle, and the handle is prevented from slipping during rotation by a polygon arranged on the outside.

[0012] Preferably, reinforcing steel is fixedly connected between the steel plate and the connecting steel rod, and the reinforcing steel is used to maintain the welding between the connecting steel rod and the steel plate stable.

[0013] Preferably, a diamond is provided on one side of the lower chuck and the upper chuck, and the diamond is used to increase the contact points between the steel wire rope and the lower chuck and the upper chuck, and is adapted to steel wire ropes of different diameters.

[0014] The present invention also provides a method for using a wire rope fastener tension test fixture, comprising a clamping step of a clamping mechanism and a connecting step of a connecting mechanism, wherein the clamping step of the clamping mechanism comprises: The wire rope is passed through the U-shaped steel groove, and the wire rope needs to be located between the lower clamp and the upper clamp. At this time, the upper clamp is moved downward by rotating the tightening bolt and the middle part of the wire rope is pressed downward and deformed until the upper and lower clamps can no longer compact the wire rope. At the same time, when the middle part of the wire rope moves downward and deforms, a gap is left between the two sides of the upper clamp and the U-shaped steel groove, thereby providing space for the wire rope to enter and clamping the wire rope so that the wire rope is firmly clamped in the U-shaped steel groove.

[0015] Preferably, the connecting steps of the connecting mechanism are: After aligning the U-shaped steel channel and the steel plate, insert the fastening screws into the steel plate and then screw them into the steel plate. At this time, the U-shaped steel channel and the steel plate are connected. By using a tensile testing machine to clamp the connecting steel rod, the tensile test of the wire rope can be completed.

[0016] The present invention provides a wire rope fastener tension test fixture, which has the following beneficial effects: 1. The clamping mechanism of the present invention can quickly and efficiently fix the wire rope through the sliding design of the upper and lower clamps and the innovative clamping method of the bent wire rope, avoiding the slippage or dislocation of the wire rope when it is subjected to longitudinal force. At the same time, the diamond design further enhances the clamping force and adaptability, and improves the reliability of the tensile test by adapting to wire ropes of different diameters.

[0017] 2. The connection mechanism of the present invention realizes the rapid docking of the steel plate and the U-shaped steel groove through the coordinated design of the fastening screws, the thread grooves and the through holes. It has high assembly efficiency and is easy to operate. The threaded connection of the fastening screws and the thread grooves has excellent vibration resistance and can maintain the stability of the connection under high tensile forces, while extending the service life of the fastening components.

[0018] 3. The present invention improves the connection strength between the steel plate and the connecting steel rod by using reinforced steel, optimizes the overall mechanical structure, and ensures that the clamp remains stable during high-strength tensile tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a device diagram of the present invention; Figure 2 A top view of the present invention; Figure 3 is a cross-sectional view of the present invention; Figure 4 It is a cross-sectional view of the U-shaped steel channel of the present invention.

[0020] Among them, 10, clamping mechanism; 101, U-shaped steel groove; 102, steel plate; 103, lower clamp; 104, tightening bolt; 105, upper clamp; 20, connecting mechanism; 201, fastening screw; 202, connecting steel rod; 30, through hole; 40, threaded groove; 50, handle; 60, reinforcing steel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Please refer to the attached Figure 1 -Attached Figure 4 The embodiment of the present invention provides a wire rope fastener tension test fixture, comprising: The clamping mechanism 10 is used to bend the middle part of the steel wire rope by rotating and move it downward to form a concave shape, so that the steel wire rope will not slip or dislocate when subjected to longitudinal force. The steel wire rope can be reliably fixed under the longitudinal tension through the clamping mechanism 10, and is not easy to slip or fall off. In addition, the design of the bent steel wire rope increases the clamping force and effectively reduces the failure probability during the clamping process; The connecting mechanism 20 is arranged in the middle of the clamping mechanism 10 and is used to complete the assembly of the clamping mechanism 10 and provide a connection between the clamping mechanism 10 and the tensile machine. Through the connecting mechanism 20, the clamp can quickly and reliably complete the docking of the clamping mechanism 10 and the tensile machine, thereby improving the assembly efficiency.

[0023] Please refer to the attached Figure 1 -Attached Figure 4 In a preferred embodiment of the present invention, the clamping mechanism 10 includes a steel plate 102, a U-shaped steel groove 101 is installed at the bottom of the steel plate 102, a lower clamp 103 and an upper clamp 105 are slidably connected in sequence from bottom to top inside the U-shaped steel groove 101, a tightening bolt 104 is threadedly connected to the middle of the steel plate 102, and one end of the tightening bolt 104 close to the lower clamp 103 is in contact with the upper clamp 105. Through the sliding design, the lower clamp 103 and the upper clamp 105 are It can move freely along the longitudinal direction of the U-shaped steel channel 101, providing an adjustable space for the clamping of the wire rope. The tightening bolt 104 can drive the upper clamp 105 to move when rotating, so that the upper clamp 105 moves downward and applies a clamping force to the wire rope, thereby completing the clamping and fixing operation of the wire rope. At the same time, due to the U-shaped design of the U-shaped steel channel 101, it can contact between the upper clamp 105 and the U-shaped steel channel 101 when the wire rope is bent, thereby improving the clamping stability.

[0024] Please refer to the attached Figure 1 -Attached Figure 4 In a preferred embodiment of the present invention, the connecting mechanism 20 includes a fastening screw 201 and a connecting steel rod 202. The fastening screw 201 is slidably connected to the middle part of the steel plate 102. The fastening screw 201 is threadedly connected to the U-shaped steel groove 101. The fastening screw 201 realizes axial movement by rotation during the connection process, thereby forming a firm connection between the steel plate 102 and the U-shaped steel groove 101. The connecting steel rod 202 is fixedly connected to the side of the steel plate 102 away from the U-shaped steel groove 101. The connecting steel rod 202 is used to provide a clamping interface for the tensile testing machine. One end of the connecting steel rod 202 is welded to the steel plate 102, and the other end is connected to the tensile testing machine, so that the clamp can be used in the tensile testing machine.

[0025] Please refer to the attached Figure 1 -Attached Figure 4In a preferred embodiment of the present invention, a through hole 30 is opened in the middle of the steel plate 102, and the fastening screw 201 is slidably connected in the middle of the through hole 30 to provide a movable space for the fastening screw 201 in the steel plate 102. The design of the through hole 30 provides a movable space for the fastening screw 201, so that it can slide freely in the steel plate 102, thereby realizing the rapid docking of the steel plate 102 and the U-shaped steel groove 101. At the same time, the through hole 30 also reduces the friction between the fastening screw 201 and the steel plate 102, thereby reducing the wear of the fastening screw 201, improving the durability of the fastening screw 201, and ensuring that the fastening screw 201 can maintain stable operation during the test.

[0026] Please refer to the attached Figure 1 -Attached Figure 4 In a preferred embodiment of the present invention, a thread groove 40 is opened in the middle of the U-shaped steel groove 101, and the fastening screw 201 is threadedly connected in the middle of the thread groove 40, which is used to complete the connection between the steel plate 102 and the U-shaped steel groove 101 after the fastening screw 201 is screwed in. The thread groove 40 provides connection conditions between the fastening screw 201 and the U-shaped steel groove 101, and at the same time, the use of the through hole 30 is used to increase the speed of the fastening screw 201 connecting the U-shaped steel groove 101 and the steel plate 102. At the same time, this connection has a certain vibration resistance and can maintain the stability of the connection under high tensile environment.

[0027] Please refer to the attached Figure 1 -Attached Figure 4 In a preferred embodiment of the present invention, one end of the tightening bolt 104 away from the upper clamp 105 is fixedly connected to a handle 50, and the handle 50 is prevented from slipping during rotation by a polygon arranged on the outside. The polygonal design increases the friction when holding the handle 50 and effectively prevents the user from slipping when rotating the handle 50, thereby enhancing the rotation efficiency of the bolt and improving the clamping effect of the wire rope.

[0028] Please refer to the attached Figure 1 -Attached Figure 4 In a preferred embodiment of the present invention, a reinforcing steel 60 is fixedly connected between the steel plate 102 and the connecting steel rod 202. The reinforcing steel 60 is used to keep the welding between the connecting steel rod 202 and the steel plate 102 stable. The use of the reinforcing steel 60 improves the connection strength between the steel plate 102 and the connecting steel rod 202, avoids loosening or breakage caused by overload at the welding point during high tensile test, optimizes the mechanical structure of the overall device, and improves the service life of the connecting steel rod 202.

[0029] Please refer to the attached Figure 1 -Attached Figure 4In a preferred embodiment of the present invention, a diamond is provided on one side of the lower clamp 103 and the upper clamp 105, and the diamond is used to increase the contact points between the wire rope and the lower clamp 103 and the upper clamp 105, and adapt to wire ropes of different diameters. The diamond design increases the contact area between the lower clamp 103 and the upper clamp 105 and the wire rope through multi-point contact, thereby improving the clamping force. Moreover, regardless of the diameter of the wire rope, good adaptability can be achieved through the diamond, which not only enhances the friction between the clamp and the wire rope and prevents the wire rope from slipping, but also enhances the reliability of the clamping effect and improves the effect of the tensile test.

[0030] The method of using the wire rope fastener tensile test fixture described below can be referenced to the wire rope fastener tensile test fixture described above.

[0031] Please refer to the attached Figure 1 -Attached Figure 4 The present invention also provides a method for using a wire rope fastener tension test fixture, including a clamping step of a clamping mechanism 10 and a connecting step of a connecting mechanism 20, wherein the clamping step of the clamping mechanism 10 is: The wire rope is passed through the U-shaped steel groove 101, and the wire rope needs to be located between the lower clamp 103 and the upper clamp 105. At this time, the upper clamp 105 is moved downward by rotating the tightening bolt 104 and presses the middle part of the wire rope downward to deform until the upper clamp 105 and the lower clamp 103 can no longer compact the wire rope. At the same time, when the middle part of the wire rope moves downward and deforms, a gap is left between the two sides of the upper clamp 105 and the U-shaped steel groove 101, thereby providing space for the wire rope to enter and clamping the wire rope so that the wire rope is firmly clamped in the U-shaped steel groove 101.

[0032] Please refer to the attached Figure 1 -Attached Figure 4 In a preferred embodiment of the present invention, the connection steps of the connection mechanism 20 are: After aligning the U-shaped steel groove 101 and the steel plate 102, insert the fastening screw 201 into the steel plate 102 and screw it into the steel plate 102. At this time, the U-shaped steel groove 101 and the steel plate 102 are connected. By using a tensile testing machine to clamp the connecting steel rod 202, the tensile test of the wire rope can be completed.

[0033] The method for using the wire rope fastener tensile test fixture of this embodiment can be used to execute the above-mentioned wire rope fastener tensile test fixture embodiments, and its principles and technical effects are similar, which will not be repeated here.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Wire rope fastener tensile test fixture, characterized in that: include: The clamping mechanism (10) is used to bend the middle part of the steel wire rope and move it downward by rotating to form a concave shape, thereby completing the clamping and fixing operation of the steel wire rope, so that the steel wire rope will not slip or shift when subjected to longitudinal force; A connecting mechanism (20) is arranged in the middle of the clamping mechanism (10) and is used to complete the assembly of the clamping mechanism (10) and simultaneously provide a connection between the clamping mechanism (10) and the tensile machine.

2. The wire rope fastener tensile test fixture according to claim 1, characterized in that: The clamping mechanism (10) comprises a steel plate (102), a U-shaped steel groove (101) is installed at the bottom of the steel plate (102), a lower clamp (103) and an upper clamp (105) are slidably connected in sequence from bottom to top inside the U-shaped steel groove (101), a tightening bolt (104) is threadedly connected to the middle of the steel plate (102), and an end of the tightening bolt (104) close to the lower clamp (103) is in contact with the upper clamp (105).

3. The wire rope fastener tensile test fixture according to claim 1, characterized in that: The connection mechanism (20) comprises a fastening screw (201) and a connecting steel rod (202), wherein the fastening screw (201) is slidably connected to the middle part of the steel plate (102), the fastening screw (201) and the U-shaped steel channel (101) are threadedly connected, and the connecting steel rod (202) is fixedly connected to a side of the steel plate (102) away from the U-shaped steel channel (101).

4. The wire rope fastener tensile test fixture according to claim 1, characterized in that: A through hole (30) is provided in the middle of the steel plate (102), and the fastening screw (201) is slidably connected to the middle of the through hole (30) to provide a movable space for the fastening screw (201) in the steel plate (102).

5. The wire rope fastener tensile test fixture according to claim 1, characterized in that: A threaded groove (40) is provided in the middle of the U-shaped steel channel (101), and the fastening screw (201) is threadedly connected to the middle of the threaded groove (40) to complete the connection between the steel plate (102) and the U-shaped steel channel (101) after the fastening screw (201) is screwed in.

6. The wire rope fastener tensile test fixture according to claim 1, characterized in that: One end of the tightening bolt (104) away from the upper clamp (105) is fixedly connected to a handle (50), and the handle (50) is prevented from slipping during rotation by a polygon arranged on the outside.

7. The wire rope fastener tensile test fixture according to claim 1, characterized in that: A reinforcing steel (60) is fixedly connected between the steel plate (102) and the connecting steel rod (202), and the reinforcing steel (60) is used to maintain a stable weld between the connecting steel rod (202) and the steel plate (102).

8. The wire rope fastener tensile test fixture according to claim 1, characterized in that: A diamond shape is provided on one side of the lower clamp (103) and the upper clamp (105), and the diamond shape is used to increase the contact points between the steel wire rope and the lower clamp (103) and the upper clamp (105), and is adapted to steel wire ropes of different diameters.

9. The method for using the wire rope fastener tension test fixture is characterized in that: The wire rope fastener tensile test fixture according to any one of claims 1 to 8 comprises a clamping step of a clamping mechanism (10) and a connecting step of a connecting mechanism (20), wherein the clamping step of the clamping mechanism (10) is: The steel wire rope is inserted into the U-shaped steel groove (101), and the steel wire rope needs to be located between the lower clamp (103) and the upper clamp (105). At this time, the upper clamp (105) is moved downward by rotating the tightening bolt (104) and presses the middle part of the steel wire rope downward to deform until the upper clamp (105) and the lower clamp (103) can no longer compact the steel wire rope. At the same time, when the middle part of the steel wire rope moves downward and deforms, a gap is left between the two sides of the upper clamp (105) and the U-shaped steel groove (101), thereby providing space for the steel wire rope to enter and playing a role in clamping the steel wire rope, so that the steel wire rope is firmly clamped in the U-shaped steel groove (101).

10. The method for using the wire rope fastener tension test fixture according to claim 9, characterized in that: The connection steps of the connection mechanism (20) are: After the U-shaped steel channel (101) and the steel plate (102) are aligned, the fastening screw (201) is inserted into the steel plate (102) and then screwed into the steel plate (102). At this time, the U-shaped steel channel (101) and the steel plate (102) are connected. By clamping the connecting steel rod (202) using a tensile testing machine, the tensile test of the steel wire rope can be completed.

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