Multifunctional wire tension testing device

Abstract

The utility model relates to the technical field of material mechanics testing, and discloses a multifunctional wire tension testing device which comprises a device frame, the upper side and the lower side of the interior of the device frame are both in threaded connection with testing tables, and the close sides of the two testing tables are both fixedly connected with sleeve connecting rods. Two sleeve connecting rods are arranged on the device frame, clamping mechanisms are arranged on the sides, close to each other, of the two sleeve connecting rods, a tension mechanism is arranged at the bottom of the device frame, the tension mechanism and the clamping mechanisms are connected through the sleeve connecting rods, and each clamping mechanism comprises two connecting bolts; the outer portions of the two connecting bolts are in threaded connection with the close sides of the two sleeve connecting rods correspondingly. According to the utility model, the anti-slip sheet is fixed in the support frame through the fixing bolt, and an anti-slip guarantee is provided for clamping the wire rod, so that the wire rod testing device is suitable for testing the wire rods with various wire diameters and materials, the universality of the device is improved, the wire rod is effectively prevented from slipping in the clamping process, and the accuracy of a test result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to material mechanics test technical field especially relates to a multi -functional wire rod tension testing device. BACKGROUND

[0002] With the development of industrial technology, wire rod as basic material is widely used in construction, electric power, communication, manufacturing and other fields, and the tension performance is one of important indexes for measuring the quality of wire rod, which determines the strength and stability of wire rod when bearing tension, therefore needs to carry out accurate detection to the tension performance of wire rod through special tension testing device, therefore the demand of wire rod tension testing device is increasing day by day.

[0003] In prior art, the design of wire rod tension testing device usually adopts two main structure forms, namely fixed clamp structure and hydraulic drive structure, for fixed clamp structure, it mainly depends on a rigid clamping mode, the two ends of wire rod are firmly fixed through the mode, and then stretching test is carried out, hydraulic drive structure utilizes hydraulic or pneumatic device to provide clamping force, and the structure can control the size of clamping force by adjusting hydraulic pressure or air pressure, thereby enhancing the stability of clamping.

[0004] The common tension testing device in prior art mostly adopts fixed clamp structure, has the problems of limited application range and poor clamping stability, and is difficult to meet the demand of diversified wire rod test, in addition, the existing device is prone to slipping when testing high hardness or high toughness wire rod, resulting in inaccurate test result, which affects the scientificity and reliability of wire rod quality evaluation, therefore a multifunctional wire rod tension testing device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a multifunctional wire rod tension testing device, which aims at improving the poor applicability of the clamping device in prior art, and difficult to meet the wire rod test demand of different wire diameter and material, and prone to slipping phenomenon in clamping process, resulting in inaccurate test result.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a multifunctional wire tension testing device, including the device frame, both sides of inside of device frame are screw -threaded connection test platform, the similar side of two test platforms is fixedly connected with sleeve connecting rod, the similar side of two sleeve connecting rods is provided with clamping mechanism, the bottom of device frame is provided with tension mechanism, tension mechanism and clamping mechanism are connected through sleeve connecting rod, clamping mechanism includes two connecting bolts, the similar side of two connecting bolts is screw -threaded connection respectively in two sleeve connecting rods, the outside of connecting bolt is screw -threaded connection with support frame, the inside of support frame is screw -threaded connection with fixed bolt, the middle fixed connection of fixed bolt and support frame is provided with antiskid piece, the inside both sides of support frame are slidably connected with drive assembly, the similar side of two drive assemblies is clamped with connecting sliding block, the similar side of two connecting sliding blocks is fixedly connected with clamping block,

[0008] Through the above technical scheme: when carrying out wire tension test, first, the clamping mechanism is operated to fix the wire, the connecting bolt is rotated to connect the support frame and the sleeve connecting rod, then, the antiskid piece is fixed on the support frame by rotating the fixed bolt, the antiskid piece is attached to the surface of the test wire to prevent slipping, then the drive assembly is driven to slide inside the support frame, the connecting sliding block is driven to move, and the clamping block is driven to move towards the wire, the wire is tightly clamped between the two clamping blocks on both sides of the antiskid piece, and the wire is firmly clamped.

[0009] As a further description of the above technical scheme:

[0010] The tension mechanism includes a protective shell, the outer side of the protective shell is fixedly connected to the bottom of the device frame, the inner bottom side of the protective shell is fixedly connected with a hydraulic pump, the outer side of the hydraulic pump is fixedly connected with a filter oil tank, the inner side of the filter oil tank is fixedly connected with a filter screen, and the outer side of the hydraulic pump, away from the filter oil tank, is fixedly connected with a storage oil tank.

[0011] Through the above technical scheme: the hydraulic pump is the core power component of the tension mechanism, when working, the hydraulic pump extracts hydraulic oil from the filter oil tank, the filter screen inside the filter oil tank filters the hydraulic oil to remove impurities, ensuring that the hydraulic oil entering the hydraulic pump is clean, avoiding damage to the hydraulic pump caused by impurities, and the filtered hydraulic oil is pressurized by the hydraulic pump and delivered to the storage oil tank, which stores the hydraulic oil, and the internal liquid level meter monitors the hydraulic oil level in the storage oil tank in real time.

[0012] As a further description of the above technical scheme:

[0013] The output end of the hydraulic pump is fixedly connected with a control valve group, one end of the control valve group is fixedly connected with a lower oil pipe, and the other end of the control valve group is fixedly connected with an upper oil pipe.

[0014] Through the above technical scheme: when the hydraulic pump starts to work, the hydraulic oil with a certain pressure flows out from the output end, enters the control valve group, and makes the hydraulic oil pass through the lower oil pipe and the upper oil pipe.

[0015] As a further description of the above technical scheme:

[0016] The outer part of the upper oil pipe is fixedly connected to the test table at the top of the device frame, the outer part of the lower oil pipe is fixedly connected to the test table at the bottom of the device frame, the other end of the upper oil pipe is fixedly connected with an upper hydraulic cylinder, and the other end of the lower oil pipe is fixedly connected with a lower hydraulic cylinder.

[0017] Through the above technical scheme: when the system starts, the upper oil pipe and the lower oil pipe respectively transport hydraulic oil to the upper hydraulic cylinder and the lower hydraulic cylinder, the upper hydraulic cylinder generates an upward thrust after receiving the hydraulic oil, the lower hydraulic cylinder generates a downward pulling force after receiving the hydraulic oil, and the two cooperate with each other to form a stable force, so as to realize accurate mechanical testing on the test object and ensure the accuracy and reliability of the test results.

[0018] As a further description of the above technical scheme:

[0019] The output end of the upper hydraulic cylinder is fixedly connected to the sleeve connecting rod at the top of the two test tables, and the output end of the lower hydraulic cylinder is fixedly connected to the sleeve connecting rod at the bottom of the two test tables.

[0020] Through the above technical scheme: the upper hydraulic cylinder and the lower hydraulic cylinder work cooperatively, the output end of the upper hydraulic cylinder pushes the top sleeve connecting rod to move after the upper hydraulic cylinder is started, generates an upward force, the lower hydraulic cylinder is started, the output end pushes the bottom sleeve connecting rod, forms a downward force, and the two opposite thrusts can exert a stretching or extrusion force required by the test on the test table and related parts.

[0021] As a further description of the above technical scheme:

[0022] The driving assembly comprises two limiting sliders, the outer parts of the two limiting sliders are respectively slidably connected to the inner sides of the support frame, the distal sides of the two limiting sliders are rotatably connected with driving handles, the inner parts of the two limiting sliders are threadedly connected with support bolts, and the inner parts of the two limiting sliders are clamped to the outer parts of the connecting sliders.

[0023] Through the technical scheme, when the driving assembly works, the driving handle rotates, the limiting sliders slide along the inside of the support frame, and the support bolts rotate to finely adjust the position of the limiting sliders; the two limiting sliders are clamped to the connecting sliders to drive the connecting sliders to move, thereby achieving the overall driving function.

[0024] Further description is made to the technical scheme:

[0025] The outer parts of the two driving handles are respectively screw-connected to the inside of the support frame on both sides, and the outer parts of the two support bolts are respectively screw-connected to the inside of the two connecting sliders.

[0026] Through the technical scheme, the driving handle rotates to drive the related components in the support frame to move by virtue of the threaded transmission characteristics, and the support bolts also move the connecting sliders by screwing when rotating.

[0027] Further description is made to the technical scheme:

[0028] The bottom of the testing table at the inside bottom side of the device frame is fixedly connected with a tension sensor, and the outside of the device frame is fixedly connected with a general control table.

[0029] Through the technical scheme, when tension acts on the tension sensor, the sensor converts the tension into an electric signal, and the general control table receives the signal to complete the monitoring and analysis tasks.

[0030] The utility model has the advantages of:

[0031] 1. In the utility model, the anti-skid piece is fixed in the inside of the support frame by the fixing bolt, which provides anti-skid protection for clamping the wire rod, and the clamping block structure is driven by the driving assembly to work, so that the clamping block and the anti-skid piece fix the wire rod, thereby realizing wire rod testing suitable for various wire diameters and materials, improving the universality of the device, effectively avoiding wire rod slipping during clamping, and improving the accuracy of the test results.

[0032] 2. In the utility model, the hydraulic pump, the filter oil tank and the storage oil tank cooperate to filter the hydraulic oil sucked by the hydraulic pump through the filter screen, then pressurize and output the hydraulic oil to the inside of the storage oil tank, and then wait for use, and the liquid level meter monitors the liquid level in the storage oil tank in real time to ensure sufficient oil amount, thereby solving the problem that pollutants contained in the hydraulic oil damage other structures after long-time use, resulting in reduced service life and increased maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A three-dimensional schematic view of a multifunctional wire rod tension testing device is provided.

[0034] Figure 2 A structure schematic view of a test table of a multifunctional wire rod tension testing device is provided in the utility model;

[0035] Figure 3 A structure schematic view of a sleeve connecting rod of a multifunctional wire rod tension testing device is provided in the utility model;

[0036] Figure 4 A structure schematic view of an upper hydraulic cylinder of a multifunctional wire rod tension testing device is provided in the utility model;

[0037] Figure 5 A structure schematic view of a tension sensor of a multifunctional wire rod tension testing device is provided in the utility model; Figure 4 An enlarged view of A in the figure;

[0038] Figure 6 A structure schematic view of a tension sensor of a multifunctional wire rod tension testing device is provided in the utility model;

[0039] Figure 7 An enlarged view of B in the figure. Figure 6

[0040] Legend:

[0041] 1, device frame; 2, test table; 3, clamping mechanism; 31, connecting bolt; 32, support frame; 33, fixing bolt; 34, anti-skid piece; 35, driving assembly; 351, limiting sliding block; 352, driving handle; 353, supporting bolt; 36, connecting sliding block; 37, clamping block; 4, tension mechanism; 41, protection shell; 42, hydraulic pump; 43, filter oil tank; 44, filter screen; 45, storage oil tank; 46, liquid level meter; 47, control valve group; 48, lower oil pipe; 49, upper oil pipe; 410, upper hydraulic cylinder; 411, lower hydraulic cylinder; 412, tension sensor; 5, master control table; 6, sleeve connecting rod. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0043] Reference Figure 1 and Figure 3 ​The utility model provides a kind of embodiment: a multifunctional wire tension testing device, including device frame 1, device frame 1 provides installation and fixed basis, the inside of device frame 1 upper and lower two sides are all threadedly connected with test table 2, test table 2 is used for installation and fixed, provide support platform for the clamping and stretching of wire during tension test, ensure that wire is in correct position and state during testing process, the similar side of two test table 2 is all fixedly connected with sleeve connecting rod 6, sleeve connecting rod 6 is transmitted to clamping mechanism 3 by the tension mechanism 4 generated tension, the similar side of two sleeve connecting rod 6 is all provided with clamping mechanism 3, the bottom of device frame 1 is provided with tension mechanism 4, the tension mechanism 4 and the clamping mechanism 3 are connected by sleeve connecting rod 6;

[0044] Specifically, during the whole testing process, device frame 1 bears the gravity from each component and the acting force such as tension generated during testing process, disperses and transmits these forces by its structural strength, maintains the overall stability of device, test table 2 is threadedly connected in the inside upper and lower sides of device frame 1, can be adjusted in upper and lower positions according to the length of test wire and actual demand, when testing, test table 2 transmits the tension generated by tension mechanism 4 to sleeve connecting rod 6, and then to clamping mechanism 3 and the wire to be tested.

[0045] Refer to Figures 3 to 5 The clamping mechanism 3 includes two connecting bolts 31, the outer parts of two connecting bolts 31 are respectively threadedly connected on the similar sides of two sleeve connecting rods 6, the outer thread of connecting bolt 31 is connected with support frame 32, support frame 32 provides the basis of installation and support, while bearing the acting force from each component during the whole testing process, connecting bolt 31 is used to connect and fix support frame 32 on sleeve connecting rod 6, the inner thread of support frame 32 is connected with fixed bolt 33, fixed bolt 33 is used to fix anti-skid piece 34, to prevent anti-skid piece 34 from sliding during testing process, ensure the accuracy of test result, the middle of fixed bolt 33 and support frame 32 is fixedly connected with anti-skid piece 34, anti-skid piece 34 is made of wear-resistant nitrile rubber material, the inner sides of support frame 32 are all slidably connected with driving assembly 35;

[0046] The driving assembly 35 comprises two limiting sliders 351, outer parts of the two limiting sliders 351 are respectively slidably connected to the inner sides of the support frame 32, the limiting sliders 351 slide along a specific direction of the support frame 32, the far sides of the two limiting sliders 351 are both rotationally connected with driving handles 352, the driving handles 352 are used to realize clamping and loosening operations on the wire, the inner parts of the two limiting sliders 351 are both threadedly connected with support bolts 353, the support bolts 353 connect the connecting sliders 36 and the limiting sliders 351 together, the near sides of the two driving assemblies 35 are both clamped with the connecting sliders 36, the connecting sliders 36 transmit the power generated by the driving assemblies 35 to the clamping blocks 37, the inner parts of the near sides of the two support bolts 353 are clamped to the outer parts of the connecting sliders 36, the near sides of the two connecting sliders 36 are both fixedly connected with the clamping blocks 37, the clamping blocks 37 directly contact with the wire, and the wire is clamped through the control of the driving assembly 35, the outer parts of the two driving handles 352 are respectively threadedly connected to the inner sides of the support frame 32, and the inner parts of the two limiting sliders 351 are clamped to the outer parts of the connecting sliders 36.

[0047] Specifically, the support frame 32 is connected with the connecting bolt 31 and the sleeve connecting rod 6, and has two main functions during testing. One is to provide mounting positions for the fixing bolt 33, the anti-skid piece 34 and other components, so as to fix the wire. The other is to provide a track for the sliding of the driving assembly 35, so that the driving assembly 35 can drive the clamping block 37 to complete the clamping and loosening actions on the wire. Under the pressure of the fixing bolt 33, the anti-skid piece 34 closely adheres to the support frame 32 to form a basic support. By virtue of its elasticity and the characteristics of nitrile rubber, the anti-skid piece 34 generates a large friction force with the surface of the wire. In the driving assembly 35, rotating the driving handle 352 will drive the limiting slider 351 to move, and the support bolt 353 will move accordingly. Since the support bolt 353 is threadedly connected with the connecting slider 36, according to the screw transmission principle, the movement of the support bolt 353 will make the connecting slider 36 move along its axis direction, thereby driving the clamping block 37 to move. The two clamping blocks 37 move towards each other, so as to clamp the wire on the anti-skid piece 34. When the tensioning mechanism 4 works, the tension generated by the tensioning mechanism 4 is transmitted to the clamping mechanism 3 through the sleeve connecting rod 6, and then transmitted to the wire by the clamping block 37, so that the wire is subjected to a stretching force, and finally the test on the tension of the wire is realized.

[0048] Referring to Figure 2 , Figure 6 and Figure 7The pulling mechanism 4 comprises a protective shell 41 for preventing the internal device from being affected by the external environment such as dust, moisture and the like, and also plays a certain protection role, the outer part of the protective shell 41 is fixedly connected to the bottom of the device frame 1, the inner bottom side of the protective shell 41 is fixedly connected with a hydraulic pump 42, the hydraulic pump 42 provides stable hydraulic oil flow and pressure of 10 MPa for the hydraulic cylinder, the hydraulic pump 42 is driven by a motor, the outer part of the hydraulic pump 42 is fixedly connected with a filter oil tank 43, the filter oil tank 43 stores hydraulic oil and filters the hydraulic oil, so as to ensure the cleanliness of the hydraulic oil entering the hydraulic pump 42 and the entire hydraulic system, the inner part of the filter oil tank 43 is fixedly connected with a filter screen 44, the filter screen 44 filters the hydraulic oil, intercepts impurities, particles and other pollutants in the hydraulic oil, and ensures the cleanliness of the hydraulic oil, the outer part of the hydraulic pump 42, i.e. the side away from the filter oil tank 43, is fixedly connected with a storage oil tank 45, the storage oil tank 45 stores the hydraulic oil pressurized by the hydraulic pump 42, the inner part of the storage oil tank 45 is fixedly connected with a liquid level meter 46, the liquid level meter 46 is used for monitoring the liquid level of the hydraulic oil in the storage oil tank 45 in real time;

[0049] The output end of the hydraulic pump 42 is fixedly connected with a control valve group 47, the control valve group 47 comprises a direction control valve, a flow control valve and a pressure control valve, wherein the direction control valve adopts an electromagnetic reversing valve, respectively controls the piston rod of the upper hydraulic cylinder 410 and the lower hydraulic cylinder 411 to extend and retract, realizes the switching of the movement direction of the hydraulic cylinder by electrifying and de-electrifying the electromagnet of the electromagnetic reversing valve, the flow control valve is installed on the oil inlet of each hydraulic cylinder, is used for adjusting the hydraulic oil flow entering the hydraulic cylinder, so as to control the movement speed of the hydraulic cylinder, the pressure control valve is installed on the main oil way of the hydraulic system, sets the highest working pressure of the system, prevents the system pressure from being too high to damage the equipment, at the same time, a pressure sensor is installed on the oil inlet of each hydraulic cylinder, monitors the working pressure of the hydraulic cylinder in real time, and feeds back the pressure signal to the control system;

[0050] One end of the control valve group 47 is fixedly connected with the lower oil pipe 48, and the other end of the control valve group 47 is fixedly connected with the upper oil pipe 49. The upper oil pipe 49 and the lower oil pipe 48 are channels for the transmission of hydraulic oil in the hydraulic system and are nylon pipes. The material of the nylon pipe is light, flexible, easy to install and bend, and can absorb vibration and impact to a certain extent. The nylon pipe has good oil resistance and chemical corrosion resistance and strong adaptability to hydraulic oil. The outer part of the upper oil pipe 49 is fixedly connected to the test table 2 at the top of the device frame 1, and the outer part of the lower oil pipe 48 is fixedly connected to the test table 2 at the bottom of the device frame 1. The other end of the upper oil pipe 49 is fixedly connected with the upper hydraulic cylinder 410, and the other end of the lower oil pipe 48 is fixedly connected with the lower hydraulic cylinder 411. The upper hydraulic cylinder 410 and the lower hydraulic cylinder 411 are selected to be single-acting hydraulic cylinders with a rated pressure of 10 MPa. The output end of the upper hydraulic cylinder 410 is fixedly connected to the sleeve connecting rod 6 at the top of the two test tables 2, and the output end of the lower hydraulic cylinder 411 is fixedly connected to the sleeve connecting rod 6 at the bottom of the two test tables 2. The bottom of the test table 2 at the bottom of the inside of the device frame 1 is fixedly connected with a tension sensor 412. The tension sensor 412 is selected to be a strain sensor with a range of 0-10 kN. The outside of the device frame 1 is fixedly connected with a general control platform 5, which is the control and monitoring center of the test device.

[0051] Specifically, the protective shell 41 is fixedly connected to the bottom of the device frame 1 to provide a position for the installation and fixation of the tension mechanism 4. The hydraulic pump 42 in the tension mechanism 4 is driven by a motor device to suck the filtered hydraulic oil in the filter oil tank 43 into the pump cavity through the filter screen 44. After being pressurized by mechanical force, the hydraulic oil has a certain pressure and is output to the storage oil tank 45 to provide a high-pressure oil source for subsequent work. The storage oil tank 45 is provided with a liquid level meter 46 to monitor the liquid level of the hydraulic oil in real time. The control valve group 47 can adjust the flow direction, flow rate and pressure of the hydraulic oil according to the test requirements. The adjusted hydraulic oil is respectively delivered to the lower hydraulic cylinder 411 and the upper hydraulic cylinder 410 through the lower oil pipe 48 and the upper oil pipe 49. Since the output ends of the lower hydraulic cylinder 411 and the upper hydraulic cylinder 410 are connected with the sleeve connecting rod 6, the movement of the two hydraulic cylinders can drive the sleeve connecting rod 6, and then drive the test table 2 and the clamping mechanism 3 to move together to realize the operation of applying tension to the wire rod. When the tension acts on the tension sensor 412, an electric signal is generated. The signal is transmitted to the general control platform 5 through a cable. The general control platform 5 converts the electric signal into a specific tension value according to the pre-set calibration parameters and displays the value.

[0052] Working principle: the multifunctional wire tension testing device is based on the device frame 1, the upper and lower sides of which are connected to the testing table 2 through threads, and the position can be adjusted according to the actual needs such as the length of the testing wire. The testing table 2 provides support for the test and is connected to the tension mechanism 4 and the clamping mechanism 3. The clamping mechanism 3 is installed on the sleeve connecting rod 6 through connecting bolts 31, the fixed bolts 33 in the support frame 32 fix the non-slip sheet 34, the driving handle 352 in the driving assembly 35 is rotated to drive the limiting slider 351 to slide in the support frame 32, and then the connecting slider 36 and the clamping block 37 are moved through the support bolt 353, and the two clamping blocks 37 move to the side close to each other to clamp the wire on the non-slip sheet 34;

[0053] The protective shell 41 of the tension mechanism 4 is fixed at the bottom of the device frame 1, the internal hydraulic pump 42 is driven by the motor, the filtered hydraulic oil is sucked from the filter oil tank 43 through the filter screen 44 and pressurized, and then output to the storage oil tank 45, the liquid level meter 46 monitors the liquid level in real time, the control valve group 47 adjusts the flow direction, flow rate and pressure of the hydraulic oil, including direction, flow rate and pressure control valves, the adjusted hydraulic oil is delivered to the upper hydraulic cylinder 410 and the lower hydraulic cylinder 411 through the upper oil pipe 49 and the lower oil pipe 48 respectively, and the output ends of the two hydraulic cylinders are connected to the sleeve connecting rod 6, the movement of which drives the sleeve connecting rod 6, the testing table 2 and the clamping mechanism 3 to move. When the tension mechanism 4 works, the tension generated by the tension mechanism 4 is transmitted to the clamping mechanism 3 through the sleeve connecting rod 6, and the clamping block 37 transmits the tension to the wire to make it stretch, and the tension acts on the tension sensor 412 at the bottom of the testing table 2 inside the device frame 1, generating an electric signal transmitted to the master control console 5, which converts the electric signal into a specific tension value according to the calibration parameters and displays it, completing the test of the tension of the wire.

[0054] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features, and any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-functional wire tensile testing device comprising a device frame (1), characterized in that: The inside of the device frame (1) is provided with test benches (2) on both sides, the proximal side of the two test benches (2) is fixedly connected with sleeve connecting rods (6), the proximal side of the two sleeve connecting rods (6) is provided with clamping mechanisms (3), the bottom of the device frame (1) is provided with a tension mechanism (4), and the tension mechanism (4) and the clamping mechanism (3) are connected through the sleeve connecting rod (6); The clamping mechanism (3) comprises two connecting bolts (31), the outer parts of the two connecting bolts (31) are respectively threadedly connected to the proximal sides of the two sleeve connecting rods (6), the outer part of the connecting bolt (31) is threadedly connected with a support frame (32), the inner part of the support frame (32) is threadedly connected with a fixing bolt (33), the middle part of the fixing bolt (33) and the support frame (32) is fixedly connected with an anti-skid piece (34), the inner sides of the support frame (32) are slidably connected with drive assemblies (35), the proximal sides of the two drive assemblies (35) are clamped with connecting sliding blocks (36), and the proximal sides of the two connecting sliding blocks (36) are fixedly connected with clamping blocks (37).

2. The multi-functional wire pull testing device of claim 1, wherein: The tension mechanism (4) comprises a protection shell (41), the outer part of the protection shell (41) is fixedly connected to the bottom of the device frame (1), the inner bottom side of the protection shell (41) is fixedly connected with a hydraulic pump (42), the outer part of the hydraulic pump (42) is fixedly connected with a filter oil tank (43), the inner part of the filter oil tank (43) is fixedly connected with a filter screen (44), and the outer part of the hydraulic pump (42), that is, the side away from the filter oil tank (43), is fixedly connected with a storage oil tank (45). The inner part of the storage oil tank (45) is fixedly connected with a liquid level meter (46).

3. The multi-functional wire pull testing device of claim 2, wherein: The output end of the hydraulic pump (42) is fixedly connected with a control valve group (47), one end of the control valve group (47) is fixedly connected with a lower oil pipe (48), and the other end of the control valve group (47) is fixedly connected with an upper oil pipe (49).

4. The multi-functional wire pull testing device of claim 3, wherein: The outer part of the upper oil pipe (49) is fixedly connected to the test bench (2) on the top of the device frame (1), the outer part of the lower oil pipe (48) is fixedly connected to the test bench (2) on the bottom of the device frame (1), the other end of the upper oil pipe (49) is fixedly connected with an upper hydraulic cylinder (410), and the other end of the lower oil pipe (48) is fixedly connected with a lower hydraulic cylinder (411).

5. The multi-functional wire pull testing device of claim 4, wherein: The output end of the upper hydraulic cylinder (410) is fixedly connected to the sleeve connecting rod (6) on the top of the two test benches (2), and the output end of the lower hydraulic cylinder (411) is fixedly connected to the sleeve connecting rod (6) on the bottom of the two test benches (2).

6. The multi-functional wire pull testing device of claim 1, wherein: The driving assembly (35) comprises two limiting sliding blocks (351), outer parts of the two limiting sliding blocks (351) are respectively slidably connected to the inner sides of the support frame (32), the distal sides of the two limiting sliding blocks (351) are both rotationally connected with driving handles (352), the inner parts of the two limiting sliding blocks (351) are both threadedly connected with support bolts (353), and the inner parts of the two limiting sliding blocks (351) are clamped to the outer parts of the connecting sliding blocks (36).

7. The multi-functional wire pull testing device of claim 6, wherein: The outer parts of the two driving handles (352) are respectively threadedly connected to the inner sides of the support frame (32), and the outer parts of the two support bolts (353) are respectively threadedly connected to the inner parts of the two connecting sliding blocks (36).

8. The multi-functional wire pull testing device of claim 2, wherein: The bottom of the test table (2) on the inner bottom side of the device rack (1) is fixedly connected with a tension sensor (412), and the outer part of the device rack (1) is fixedly connected with a general control table (5).

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