Wire wear resistance test device

Abstract

The utility model relates to the field of wire wear resistance testing, and discloses a wire wear resistance testing device which comprises a rack and a mounting plate arranged on the rack, and a clamp mechanism and a supporting assembly which are respectively used for fixing and supporting a sample are oppositely arranged on the mounting plate; one end of the sample is connected to the clamp mechanism, the other end of the sample bypasses the supporting assembly from the upper side and penetrates through the open hole to the interior of the rack, and a weight is hung at the end, penetrating through the open hole, of the sample; a friction mechanism is further arranged on the rack, one end of the sample is fixed through a clamp mechanism, the other end of the sample is loaded with tension through a weight, and it can be guaranteed that the sample is horizontally placed through a supporting assembly; by means of the structure, it can be guaranteed that the tension borne by a sample in the experiment process is constant, the tension of the sample cannot be changed in the acceleration and deceleration process of the friction block, and then the accuracy of the experiment result of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of wire wear resistance testing, in particular to a wire wear resistance testing device. Background Art

[0002] The insulation layer of wires and cables is a layer of non-conductive material evenly wrapped around the outer periphery of the wire conductor. Its function is to prevent the conductor from contacting the outside world and causing accidents such as leakage, short circuit, and electric shock. In the actual production, installation, and use of wires, it is inevitable that the wires will be moved, which will cause wear and loss to the insulation layer of the wires during the movement. Therefore, it is necessary to conduct a wear resistance test on the insulation layer of the wires to determine whether it meets the production and use requirements by testing its wear resistance.

[0003] Most of the wear-resistant testing equipment currently available on the market either hangs a weight on one end of the wire, drags the other end through a crank mechanism, and places a friction wheel in the middle to conduct the test; or fixes the two ends of the wire, then applies pressure in the middle position and moves back and forth to scrape the wire; however, when using the former method to conduct wear-resistant experiments, the acceleration of dragging the wire will affect the experimental results, and when using the latter method to conduct experiments, it is easy to cause the wire to bend in the horizontal plane, affecting the scraping surface and the test results. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a wire wear resistance test device, one end of the sample can be fixed by a clamp mechanism, the other end bypasses a support component and is connected to a suspended weight, and then a friction test is performed on the sample by a friction mechanism that can move back and forth between the clamp mechanism and the support component; one end of the sample is fixed, and the other end is loaded with tension by a weight; through this structure, it can be ensured that the tension on the sample is constant during the experiment, and the friction block will not change the tension of the sample during acceleration and deceleration, thereby improving the accuracy of the experimental results.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A wire wear test device comprises a frame and a mounting plate arranged on the frame, wherein a clamp mechanism and a supporting assembly for fixing and supporting a sample are arranged opposite to each other on the mounting plate;

[0007] The mounting plate is provided with a slotted hole, one end of the sample is connected to the clamp mechanism, and the other end of the sample bypasses the support assembly from above and passes through the slotted hole to the inside of the frame, and a weight is hung on the end of the sample passing through the slotted hole;

[0008] The frame is also provided with a friction mechanism, which comprises a friction block capable of reciprocating between the clamp mechanism and the supporting assembly, and the top of the friction block is in contact with the sample.

[0009] Optionally, the clamp mechanism includes a clamp seat fixedly mounted on the mounting plate, a groove is formed on one side of the clamp seat, a clamp plate for fixing the sample is arranged in the groove, and a clamping knob for driving the clamp plate is installed on the top of the clamp seat.

[0010] Optionally, the support assembly includes a bracket fixedly mounted on the mounting plate, the bracket is rotatably mounted with a pulley, a limiting groove is provided on a circumferential surface of the pulley, and one end of the sample passes through the limiting groove and bypasses the top of the pulley to enter the interior of the frame.

[0011] Optionally, a ball screw is rotatably installed inside the frame, a screw nut is threadedly sleeved on the ball screw, a center connecting plate is fixedly connected to the outer side of the screw nut, and the top of the center connecting plate is connected to the friction mechanism.

[0012] Optionally, the friction mechanism further includes a movable plate fixedly mounted on the top of the central connecting plate, the friction block is located on the top of the movable plate, and the two are connected via a pad block.

[0013] Optionally, guide rods are fixedly mounted on both sides of the ball screw, the guide rods are parallel to the ball screw, and both ends of the center link plate are slidably sleeved on the guide rods.

[0014] Optionally, a support for mounting a motor is further provided inside the frame, and the motor is connected to the ball screw via a synchronous belt.

[0015] Optionally, the number of the clamping mechanisms and the number of the supporting assemblies are the same, and four of each are provided. Beneficial Effects

[0016] (1) In the utility model, one end of the sample is fixed by a clamp mechanism, and the other end is loaded with tension by a weight, and the sample can be placed horizontally by a support assembly; this structure can ensure that the tension on the sample is constant during the experiment, and the friction block will not change the tension of the sample during acceleration and deceleration, thereby improving the accuracy of the experimental results of the device.

[0017] (2) The number of the clamp mechanism and the supporting assembly in the utility model is the same, and both can be set in multiple numbers, such as four, so that the friction mechanism can detect multiple samples at the same time; the device has a simple structure and a compact layout, and can detect multiple samples at the same time, which is convenient to carry and has a certain degree of portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure inside the frame of the utility model;

[0021] Figure 4 This is a schematic diagram of the friction block of the utility model adopting a flat plate structure;

[0022] Figure 5 It is a schematic diagram of the structure of the sample in contact with the friction block of the utility model;

[0023] Among them, 1. rack; 2. control panel; 3. mounting plate; 31. slot;

[0024] 4. Clamp mechanism; 41. Clamp seat; 42. Clamp plate; 43. Clamping knob;

[0025] 5. Friction mechanism; 51. Moving plate; 52. Friction block; 53. Heightening block; 6. Sample;

[0026] 7. Support assembly; 71. Bracket; 72. Pulley; 8. Weight;

[0027] 91. Support; 92. Synchronous belt; 93. Ball screw; 94. Screw nut; 95. Center plate; 96. Guide rod. DETAILED DESCRIPTION

[0028] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention. Embodiment 1

[0029] like Figure 1-Figure 3 As shown, a wire wear test device includes a frame 1 and a mounting plate 3 arranged on the frame 1, on which a clamp mechanism 4 and a support assembly 7 for fixing and supporting a sample 6 are arranged opposite to each other; a slot 31 is opened on the mounting plate 3, one end of the sample 6 is connected to the clamp mechanism 4, and the other end bypasses the support assembly 7 from above and passes through the slot 31 to the inside of the frame 1, and a weight 8 is hung on one end of the sample 6 passing through the slot 31; a friction mechanism 5 is also arranged on the frame 1, and the friction mechanism 5 includes a friction block 52 that can reciprocate between the clamp mechanism 4 and the support assembly 7, and the top of the friction block 52 is in contact with the sample 6.

[0030] As mentioned above, the sample 6 here can be an electric wire or other product to be tested for wear resistance; the function of the clamp mechanism 4 is to fix one end of the sample 6, and the function of the support assembly 7 is to support the sample 6 to ensure that the sample 6 can be placed horizontally, that is, parallel to the mounting plate 3, so as to facilitate the friction block 52 of the friction mechanism 5 to perform friction testing on it, and the friction block 52 adopts a circular structure.

[0031] In the device, one end of the sample 6 is fixed by the clamp mechanism 4, and the other end is loaded with tension by the weight 8, and the sample 6 can be placed horizontally by the support component 7; during the test, since the weight 8 is suspended in the air, the tension on the sample 6 is constant, and the friction block 52 will not change the tension of the sample 6 during the acceleration and deceleration process, thereby improving the accuracy of the experimental results of the device.

[0032] The tension on the sample 6 can be changed by replacing the weights 8 with different masses, so as to test the wear resistance of the sample 6 under different tensions.

[0033] like Figure 3 As shown, a ball screw 93 is rotatably installed inside the frame 1, and a screw nut 94 is screwed on the ball screw 93. A center connecting plate 95 is fixedly connected to the outer side of the screw nut 94, and the top of the center connecting plate 95 is connected to the friction mechanism 5; a support 91 for installing a motor is also provided inside the frame 1, and the motor is connected to the ball screw 93 through a synchronous belt 92.

[0034] The torque of the motor can be transmitted to the ball screw 93 through the synchronous belt 92. Due to the screwing connection between the ball screw 93 and the screw nut 94, when the ball screw 93 rotates, the screw nut 94 will move linearly along the axis. The movement direction of the screw nut 94 can be controlled by changing the rotation direction of the ball screw 93 by the motor. Because the screw nut 94 is connected to the center plate 95, and the center plate 95 is connected to the friction mechanism 5, the friction mechanism 5 can be driven by the screw nut 94 to move back and forth between the clamp mechanism 4 and the support assembly 7.

[0035] Among them, the ball screw 93 and the output shaft of the motor are connected with pulleys, and the two ends of the synchronous belt 92 are mounted on the two pulleys, so that the torque of the motor can be transmitted to the ball screw 93; and a control panel 2 is also provided at the front end of the frame 1, and the speed and rotation direction of the motor can be adjusted through the control panel 2.

[0036] In order to ensure the stability of the movement of the middle link plate 95, guide rods 96 are fixedly installed on both sides of the ball screw 93. The guide rods 96 are parallel to the ball screw 93, and both ends of the middle link plate 95 are slidably sleeved on the guide rods 96. The guide rods 96 can not only provide guidance for the movement of the middle link plate 95, but also limit the rotational freedom of the middle link plate 95, ensuring that it can only move along the axis direction of the ball screw 93.

[0037] Furthermore, the friction mechanism 5 also includes a moving plate 51 fixedly mounted on the top of the middle connecting plate 95, and the friction block 52 is located on the top of the moving plate 51, and the two are connected by a spacer block 53. The spacer block 53 can be a bolt, and the height of the friction block 52 relative to the moving plate 51 can be adjusted by the depth of the bolt screwed into the moving plate 51 to adapt to friction tests in different scenarios and conditions.

[0038] like Figure 3 As shown, the clamp mechanism 4 includes a clamp seat 41 fixedly mounted on the mounting plate 3, a groove is provided on one side of the clamp seat 41, a clamp plate 42 for fixing the sample 6 is provided in the groove, and a clamping knob 43 for driving the clamp plate 42 is installed on the top of the clamp seat 41.

[0039] One end of the clamping knob 43 is screwed through the top of the clamp seat 41 into the groove and is connected to the clamping plate 42. By rotating the clamping knob 43, the depth of its end screwing into the groove can be controlled, thereby achieving the purpose of controlling the height position of the clamping plate 42; when the clamping mechanism 4 fixes the sample 6, one end of the sample 6 is placed between the clamping plate 42 and the side wall of the groove. As the clamping knob 43 is rotated, the clamping plate 42 moves down until one end of the sample 6 is firmly pressed into the groove.

[0040] like Figure 3 As shown, the support assembly 7 includes a bracket 71 fixedly mounted on the mounting plate 3, and the bracket 71 is rotatably mounted with a pulley 72. A limiting groove is provided on the circumferential surface of the pulley 72, and one end of the sample 6 passes through the limiting groove and bypasses the top of the pulley 72 to enter the interior of the frame 1.

[0041] The limiting groove can ensure that the sample 6 will not separate from the pulley 72 when the pulley 72 rotates, and the end of the sample 6 located on the weight 8 can move freely through the pulley 72. At the same time, the pulley 72 can also ensure that the sample 6 can vertically pass through the slot 31 under the action of the weight 8; according to the force analysis, the gravity exerted on the weight 8 at this time is the tension exerted on the sample 6; therefore, during the test, as long as the mass of the weight 8 is not changed, it can be ensured that the sample 6 is subjected to constant tension.

[0042] Working principle:

[0043] When in use, first fix one end of the cable sample 6 on the clamp mechanism 4, the clamping knob 43 is connected to the clamp seat 41 by threading, and the clamp plate 42 is guided by the clamp seat 41, and the clamp plate 42 is pressed down by rotating the clamping knob 43 until the sample 6 is fixed and clamped; the other end of the sample 6 is vertically extended to the inside of the frame 1 through the support component 7, and a weight 8 with a load is hung on it. Since the weight 8 is suspended in the air, a certain tension will be applied to the sample 6; after the sample 6 is installed and fixed, the friction is adjusted according to the experimental requirements through the pad block 53 The height of block 52 makes the friction block 52 contact with the sample 6; then the motor is started, and the motor drives the ball screw 93 to rotate through the synchronous belt 92, thereby driving the screw nut 94 to move, and the screw nut 94 is fixedly connected to the middle connecting plate 95, and the movable plate 51 is installed on the middle connecting plate 95, so the movable plate 51 will be driven by the motor to move left and right repeatedly, thereby driving the friction block 52 to reciprocate and rub under the sample 6 to perform a wear test, and the reciprocating movement distance and movement speed of the friction block 52 can be set through the control panel 2. Embodiment 2

[0044] On the basis of the first embodiment, the wear resistance test of the sample 6 under different conditions can be simulated by changing the shape of the friction block 52 .

[0045] like Figure 4 As shown, the friction block 52 may also adopt a flat plate structure to simulate the wear scenario of the sample 6 on the ground, or the friction block 52 may also adopt a 90-degree right-angle structure to simulate the wear scenario of the sample 6 at the edges and corners.

[0046] like Figure 5 As described above, by changing the height of the friction block 52 through the pad block 53, the bending and surface wear tests can be performed without changing the tension on the sample 6, and the higher the height of the friction block 52, the greater the bending degree of the sample 6. Embodiment 3

[0047] On the basis of the first and second embodiments, the number of the clamp mechanisms 4 and the supporting components 7 is the same, and each clamp mechanism 4 is used in conjunction with a corresponding supporting component 7. When four clamp mechanisms 4 and four supporting components 7 are provided on the mounting plate 3, the device can be installed with four samples 6. When the four samples 6 fall within the length range of the friction block 52 at the same time, the wear test of the four samples 6 can be performed simultaneously by one friction mechanism 5.

[0048] In summary, the device has a simple structure and a compact layout, and can detect multiple samples 6 at the same time. It is easy to carry and has a certain degree of portability.

[0049] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0051] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A wire wear test device, characterized in that: It comprises a frame (1) and a mounting plate (3) arranged on the frame (1), wherein a clamp mechanism (4) and a support assembly (7) for fixing and supporting a sample (6) are arranged on the mounting plate (3) in a relative manner. The mounting plate (3) is provided with a slotted hole (31); one end of the sample (6) is connected to the clamp mechanism (4); the other end of the sample (6) passes through the support assembly (7) from above and passes through the slotted hole (31) to the inside of the frame (1); and a weight (8) is hung on one end of the sample (6) passing through the slotted hole (31); The frame (1) is also provided with a friction mechanism (5), the friction mechanism (5) comprising a friction block (52) capable of reciprocating between the clamp mechanism (4) and the support assembly (7), and the top of the friction block (52) is in contact with the sample (6).

2. The wire wear test device according to claim 1, characterized in that: The clamp mechanism (4) comprises a clamp seat (41) fixedly mounted on the mounting plate (3), a groove being formed on one side of the clamp seat (41), a clamping plate (42) for fixing the sample (6) being arranged in the groove, and a clamping knob (43) for driving the clamping plate (42) being mounted on the top of the clamp seat (41).

3. The wire wear test device according to claim 1, characterized in that: The support assembly (7) comprises a bracket (71) fixedly mounted on the mounting plate (3), the bracket (71) being rotatably mounted with a pulley (72), a limiting groove being provided on the circumferential surface of the pulley (72), and one end of the sample (6) passes through the limiting groove and bypasses the top of the pulley (72) to enter the interior of the frame (1).

4. The wire wear test device according to claim 1, characterized in that: A ball screw (93) is rotatably mounted inside the frame (1), a screw nut (94) is threadedly sleeved on the ball screw (93), a center link plate (95) is fixedly connected to the outside of the screw nut (94), and the top of the center link plate (95) is connected to the friction mechanism (5).

5. The wire wear test device according to claim 4, characterized in that: The friction mechanism (5) further comprises a movable plate (51) fixedly mounted on the top of the central connecting plate (95); the friction block (52) is located on the top of the movable plate (51), and the two are connected via a padding block (53).

6. The wire wear test device according to claim 5, characterized in that: Guide rods (96) are fixedly mounted on both sides of the ball screw (93), the guide rods (96) are parallel to the ball screw (93), and both ends of the center link plate (95) are slidably sleeved on the guide rods (96).

7. The wire wear test device according to claim 6, characterized in that: A support (91) for mounting a motor is also provided inside the frame (1), and the motor is connected to the ball screw (93) via a synchronous belt (92).

8. The wire wear test device according to any one of claims 1 to 7, characterized in that: The number of the clamp mechanisms (4) and the number of the support assemblies (7) are the same, and four of each are provided.

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