Cable high and low temperature performance testing device

Abstract

The utility model discloses a cable high and low temperature performance testing device, which relates to the technical field of cable testing equipment, and comprises a bottom plate, the upper end of the bottom plate is respectively provided with a heating bin and a refrigerating bin, the upper end of the bottom plate is provided with a conveying mechanism, the upper end of the conveying mechanism is fixedly provided with a mounting column, and the mounting column is provided with a clamping groove. An ampere meter and a voltmeter are fixedly installed at the upper end of the installation column, a blanking cap is fixedly installed on the front face of the installation column, a fixing rod is fixedly installed on the front face of the blanking cap, clamping mechanisms are symmetrically arranged on the outer side of the fixing rod, and a positioning block is fixedly installed at the end, away from the blanking cap, of the fixing rod. And a wiring terminal is arranged on one side, close to the fixed rod, of the blanking cap. By adopting the structure, in the transfer test process, as the cable is arranged on the fixing rod on the blanking cap, and the blanking cap is inserted into the corresponding heating bin or refrigerating bin, the energy consumption can be effectively reduced, and the problem that the cable test precision is influenced by overlarge temperature difference is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of cable testing equipment, and specifically relates to a cable high and low temperature performance testing device. Background Technology

[0002] Cables typically consist of multiple conductors or groups of wires and are used to transmit electrical energy or signals. Before leaving the factory, cables undergo a series of quality tests. In recent years, electrical safety has received increasing attention, leading to higher safety requirements for cables. Conducting diverse performance tests before shipment helps ensure product quality and improves safety during use. To ensure the voltage and current conductivity of cables when laid and used in high and low temperature environments, high and low temperature tests are necessary.

[0003] A search revealed that Chinese Patent CN114578157A discloses a temperature switching testing device for cables, comprising: a frame; a heating chamber disposed on one side of the frame along its length, having a heating cavity inside; a heating assembly on the heating chamber; a cooling chamber disposed on the other side of the frame along its length, having a cooling cavity inside; a cooling assembly on the cooling chamber for cooling the cooling cavity; a clamp disposed on the frame for clamping cables; a rotating mechanism linked to the clamp for rotating the clamp; and a traveling mechanism disposed between the heating chamber and the cooling chamber.

[0004] In the aforementioned prior art cable high and low temperature testing device, the walking mechanism drives the clamping mechanism to move the cable from the cooling box to the heating box for high and low temperature testing. Since there are curtains at the openings of the cooling box and the heating box, during the cable moving process, the operator needs to intervene to open the curtains before the walking mechanism can move the cable into the test, which is relatively troublesome. Furthermore, the cooling box or heating box is in an open state during the moving process, resulting in high energy consumption and easily creating a temperature difference effect, which affects the accuracy of the test. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a cable high and low temperature performance testing device to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A cable high and low temperature performance testing device includes: a base plate, a heating chamber and a cooling chamber respectively provided on the upper end of the base plate, a conveying mechanism provided on the upper end of the base plate, an installation column fixedly installed on the upper end of the conveying mechanism, an ammeter and a voltmeter respectively fixedly installed on the upper end of the installation column, a plug fixedly installed on the front of the installation column, a fixing rod fixedly installed on the front of the plug, a clamping mechanism symmetrically provided on the outer side of the fixing rod, a positioning block fixedly installed on the end of the fixing rod away from the plug, and a terminal block provided on the side of the plug near the fixing rod;

[0008] The clamping mechanism includes an assembly frame, which is symmetrically welded to the outside of the fixed rod. A pressure plate is slidably connected to the concave part of the assembly frame. A pull rod is fixedly installed on one side of the pressure plate. A pull block is fixedly installed at the end of the pull rod away from the pressure plate through the wall of the assembly frame. A spring is sleeved on the outside of the pull rod.

[0009] The conveying mechanism includes a first mounting base, which is fixedly mounted on the upper end of a base plate. A first screw is rotatably connected to the inner side of the upper end of the first mounting base. A first drive motor is fixedly mounted on the left end of the first mounting base. One end of the first screw passes through the inner wall of the first mounting base and is fixedly mounted to the output end of the first drive motor. A first moving block is threadedly connected to the outer side of the first screw. The first moving block is slidably connected to the inner side of the upper end of the first mounting base. A second mounting base is fixedly mounted on the upper end of the first moving block. A second screw is rotatably connected to the inner side of the upper end of the second mounting base. A second drive motor is fixedly mounted on the back of the second mounting base. One end of the second screw passes through the inner wall of the second mounting base and is fixedly mounted to the output end of the second drive motor. A second moving block is threadedly connected to the outer side of the second screw. The second moving block is slidably connected to the inner side of the second mounting base. The lower end of the mounting column is fixedly mounted on the upper end of the second moving block.

[0010] As a preferred technical solution, a first slide rod is symmetrically fixedly installed on the inner side of the upper end of the first mounting base, and the first moving block is slidably connected to the outer side of the first slide rod.

[0011] As a preferred technical solution, a second slide rod is symmetrically fixedly installed on the inner side of the upper end of the second mounting base, and the second moving block is slidably connected to the outer side of the second slide rod.

[0012] As a preferred technical solution, a connecting frame is welded to the front of the mounting column, and the end of the connecting frame is fixedly installed on the back of the plug.

[0013] As a preferred technical solution, the mounting frame has symmetrically provided grooves in its concave part, and the end of the pressure plate is slidably connected to the inside of the groove.

[0014] As a preferred technical solution, the pressure plate has a pressure groove on the side away from the pull rod, and the groove is V-shaped.

[0015] In summary, the present invention has the following main advantages:

[0016] First, the output of the second drive motor drives the second screw to rotate in the second mounting base, causing the second moving block connected to the outer thread of the second screw to move the mounting post backward, and the plug part moves out of the refrigeration chamber. Then, the output of the first drive motor drives the first screw to rotate on the first mounting base, and the first moving block connected to the outer thread of the first screw drives the second mounting base to move horizontally, so that the plug at the upper end of the mounting post moves to the side of the corresponding heating chamber inlet. Then, the output of the second drive motor drives the second screw to rotate, causing the second moving block connected to the outer thread of the second screw to slide, so that the mounting post at the upper end of the second moving block drives the plug to snap into the heating chamber. During the transfer test, since the cable is installed on the fixing rod on the plug and the plug is inserted into the corresponding heating or refrigeration chamber, energy consumption can be effectively reduced and the problem of excessive temperature difference affecting the cable test accuracy can be avoided.

[0017] Secondly, by pulling the pull block on one side of the fixing rod, the pull block drives the pressure plate to slide through the pull rod. The pressure plate compresses the spring, and after one end of the cable to be tested passes through the assembly frame, the pull block is released. The spring self-resets and pushes the pressure plate to clamp the cable on the fixing rod. Then, the terminal of one end of the cable is connected. After that, the other end of the cable is pulled taut through the recess of the positioning block at one end of the fixing rod. Then, the other end of the cable is fixed at the assembly frame on the other side of the fixing rod in the same way. This allows for convenient and quick fixing of the cable to be tested. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is the left view of this utility model;

[0020] Figure 3 This is the utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is the utility model Figure 2 Enlarged view of section B in the middle.

[0022] Reference numerals: 1. Base plate; 2. Conveying mechanism; 201. First mounting base; 202. First drive motor; 203. First screw; 204. First moving block; 205. Second mounting base; 206. Second screw; 207. Second moving block; 208. Second drive motor; 3. Mounting column; 4. Cover; 5. Voltmeter; 6. Ammeter; 7. Terminal block; 8. Fixing rod; 9. Refrigeration chamber; 10. Heating chamber; 11. First slide bar; 12. Positioning block; 13. Connecting frame; 14. Second slide bar; 15. Clamping mechanism; 151. Assembly frame; 152. Pull rod; 153. Spring; 154. Pull block; 155. Pressure plate; 16. Slide groove; 17. Pressure groove. Detailed Implementation

[0023] refer to Figures 1 to 4 The high and low temperature performance testing device for cables described in this embodiment includes: a base plate 1, with a heating chamber 10 and a cooling chamber 9 respectively provided on the upper end of the base plate 1; a conveying mechanism 2 provided on the upper end of the base plate 1; a mounting column 3 fixedly installed on the upper end of the conveying mechanism 2; an ammeter 6 and a voltmeter 5 fixedly installed on the upper end of the mounting column 3; a plug 4 fixedly installed on the front of the mounting column 3; a fixing rod 8 fixedly installed on the front of the plug 4; clamping mechanisms 15 symmetrically provided on the outer side of the fixing rod 8; a positioning block 12 fixedly installed on the end of the fixing rod 8 away from the plug 4; and a terminal block 7 provided on the side of the plug 4 near the fixing rod 8; the plug 4 is positioned at the terminal block 7. A wire hole is also provided on one side to facilitate the wire from the terminal 7. After the test cable is fixed on the fixing rod 8, the end of the cable forms a circuit with the external electrical box, voltmeter 5 and auxiliary electrical components through the terminal 7, which facilitates the voltage and current testing of the cable in the corresponding cooling chamber 9 or heating chamber 10. The cooling chamber 9 and heating chamber 10 have built-in temperature sensing elements. The cooling chamber 9 can be understood as a cooling environment guided by a semiconductor cooling chip, and the heating chamber 10 can be understood as a heating environment guided by an electric heating chip. Both are known existing technologies, mainly to form a cooling or heating test environment, so they will not be described in detail here.

[0024] The clamping mechanism 15 includes an assembly frame 151, which is symmetrically welded to the outside of the fixing rod 8. A pressure plate 155 is slidably connected to the recess of the assembly frame 151. A pull rod 152 is fixedly installed on one side of the pressure plate 155. A pull block 154 is fixedly installed at the end of the pull rod 152 away from the pressure plate 155, passing through the wall of the assembly frame 151. A spring 153 is sleeved on the outside of the pull rod 152. When fixing the cable on the fixing rod 8, the pull block 154 on one side of the fixing rod 8 is pulled first, so that the pull block 154 drives the pressure plate 155 to slide through the pull rod 152. 155 is compressed by spring 153. After one end of the cable to be tested passes through the mounting bracket 151, the pull block 154 is released. Spring 153 self-resets and pushes the pressure plate 155 to clamp the cable onto the fixing rod 8. Then, the cable is connected to the terminal 7 at one end. After the other end of the cable is pulled taut and passes through the recess of the positioning block 12 at one end of the fixing rod 8, the other end of the cable is fixed at the mounting bracket 151 on the other side of the fixing rod 8 in the same way. This allows for quick and easy fixing of the cable to be tested. During implementation, excess cable portion is removed to maintain cable tension.

[0025] The conveying mechanism 2 includes a first mounting base 201, which is fixedly mounted on the upper end of the base plate 1. A first screw 203 is rotatably connected to the inner side of the upper end of the first mounting base 201. A first drive motor 202 is fixedly mounted on the left end of the first mounting base 201. One end of the first screw 203 passes through the inner wall of the first mounting base 201 and is fixedly mounted to the output end of the first drive motor 202. A first moving block 204 is threadedly connected to the outer side of the first screw 203. The first moving block 204 is slidably connected to the first mounting base 201. On the upper inner side, a second mounting base 205 is fixedly installed on the upper end of the first moving block 204. A second screw 206 is rotatably connected to the upper inner side of the second mounting base 205. A second drive motor 208 is fixedly installed on the back of the second mounting base 205. One end of the second screw 206 passes through the inner wall of the second mounting base 205 and is fixedly installed at the output end of the second drive motor 208. A second moving block 207 is threadedly connected to the outer side of the second screw 206. The second moving block 207 is slidably connected to the inner side of the second mounting base 205. Mounting post 3 The lower end is fixedly installed on the upper end of the second moving block 207. During use, when the test cable is transferred from the cooling chamber 9 to the heating chamber 10, the output end of the second drive motor 208 first runs, driving the second screw 206 to rotate in the second mounting base 205. This causes the second moving block 207, which is threaded to the outside of the second screw 206, to move the mounting post 3 backward, and the plug 4 is moved out of the cooling chamber 9. Then, the output end of the first drive motor 202 runs, driving the first screw 203 to rotate on the first mounting base 201. The first moving block 204, which is threaded to the outside of the first screw 203, drives the second mounting base 205 to move horizontally, so that the end cap 4 at the top of the mounting post 3 moves to the side of the inlet of the corresponding heating chamber 10. Then, the output end of the second drive motor 208 runs and drives the second screw 206 to rotate, so that the second moving block 207, which is threaded to the outside of the second screw 206, slides, so that the mounting post 3 at the top of the second moving block 207 drives the end cap 4 to be snapped into the heating chamber 10, thereby facilitating the high and low temperature performance testing of the cable.

[0026] refer to Figure 2 A first slide rod 11 is symmetrically fixedly installed on the inner side of the upper end of the first mounting base 201. A first moving block 204 is slidably connected to the outside of the first slide rod 11. The first moving block 204 can slide on the first mounting base 201 through the first slide rod 11 on the first mounting base 201.

[0027] refer to Figure 3 The second sliding rod 14 is symmetrically fixedly installed on the inner side of the upper end of the second mounting base 205. The second moving block 207 is slidably connected to the outside of the second sliding rod 14. The second moving block 207 can slide on the second mounting base 205 through the second sliding rod 14 on the second mounting base 205.

[0028] refer to Figure 2A connecting bracket 13 is welded to the front of the mounting column 3. The end of the connecting bracket 13 is fixedly installed on the back of the plug 4. The plug 4 and the mounting column 3 can be easily connected and fixed through the connecting bracket 13 on the mounting column 3.

[0029] refer to Figure 4 The assembly frame 151 has symmetrically provided grooves 16 in its inner recess. The end of the pressure plate 155 is slidably connected to the inner side of the groove 16. The pressure plate 155 can slide on the assembly frame 151 through the groove 16.

[0030] refer to Figure 4 The pressure plate 155 has a pressure groove 17 on the side away from the pull rod 152. The groove 17 is V-shaped. Through the V-shaped pressure groove 17 on one side of the pressure plate 155, various cables of different specifications can be clamped and fixed.

[0031] Operating principle and advantages: During use, when fixing the cable on the fixing rod 8, first pull the pull block 154 on one side of the fixing rod 8, so that the pull block 154 drives the pressure plate 155 to slide through the pull rod 152. The pressure plate 155 compresses the spring 153. After one end of the cable to be tested passes through the assembly frame 151, the pull block 154 is released. The spring 153 self-resets and pushes the pressure plate 155 to clamp the cable on the fixing rod 8. Then, the cable is connected to the terminal 7 at one end. After the other end of the cable is pulled taut and passes through the recess of the positioning block 12 at one end of the fixing rod 8, the other end of the cable is fixed at the assembly frame 151 on the other side of the fixing rod 8 in the same way.

[0032] Subsequently, when transferring the test cable from the cooling chamber 9 to the heating chamber 10, the output of the second drive motor 208 first drives the second screw 206 to rotate in the second mounting base 205, causing the second moving block 207, which is threaded on the outside of the second screw 206, to move the mounting post 3 backward, and the plug 4 is moved out of the cooling chamber 9. Then, the output of the first drive motor 202 drives the first screw 203 to rotate on the first mounting base 201, and the first moving block 204, which is threaded on the outside of the first screw 203, moves the second mounting base 205 horizontally, causing the plug 4 at the top of the mounting post 3 to move to the side corresponding to the inlet of the heating chamber 10. Then, the output of the second drive motor 208 drives the second screw 206 to rotate, causing the second moving block 207, which is threaded on the outside of the second screw 206, to slide, so that the mounting post 3 at the top of the second moving block 207 can engage the plug 4 into the heating chamber 10.

Claims

1. A cable high-low temperature performance testing device, characterized in that It include bottom plate, the upper end of bottom plate is equipped with heating warehouse and refrigeration warehouse respectively, the upper end of bottom plate is equipped with conveying mechanism, the upper end of conveying mechanism is fixedly installed with mounting column, the upper end of mounting column is fixedly installed with ammeter and voltmeter respectively, the front of mounting column is fixedly installed with plug cover, the front of plug cover is fixedly installed with fixed rod, the outer side of fixed rod is equipped with clamping mechanism symmetrically, the end of fixed rod away from plug cover is fixedly installed with positioning block, the side of plug cover close to fixed rod is equipped with terminal; The clamping mechanism includes an assembly frame, the assembly frame is symmetrically welded on the outer side of the fixed rod, a pressing plate is slidably connected in the inner recess of the assembly frame, a pull rod is fixedly installed on one side of the pressing plate, a pull block is slidably penetrated through the wall of the assembly frame and fixedly installed on the end of the pull rod away from the pressing plate, and a spring is sleeved on the outer side of the pull rod.

2. The cable high-low temperature performance testing device of claim 1, wherein: The conveying mechanism includes a first mounting seat fixedly installed on the upper end of the bottom plate, a first screw rod rotatably connected to the inner side of the upper end of the first mounting seat, a first driving motor fixedly installed on the left end of the first mounting seat, the first screw rod fixedly installed on one end of the output end of the first driving motor and penetrating through the inner wall of the first mounting seat, a first displacement block threadedly connected to the outer side of the first screw rod, the first displacement block slidably connected to the inner side of the upper end of the first mounting seat, a second mounting seat fixedly installed on the upper end of the first displacement block, a second screw rod rotatably connected to the inner side of the upper end of the second mounting seat, a second driving motor fixedly installed on the back of the second mounting seat, the second screw rod fixedly installed on one end of the output end of the second driving motor and penetrating through the inner wall of the second mounting seat, a second displacement block threadedly connected to the outer side of the second screw rod, and the second displacement block slidably connected to the inner side of the second mounting seat.

3. The cable high-low temperature performance testing device of claim 2, wherein: The first mounting seat is symmetrically fixedly installed with a first sliding rod on the inner side of the upper end.

4. The cable high-low temperature performance testing device of claim 2, wherein: The second mounting seat is symmetrically fixedly installed with a second sliding rod on the inner side of the upper end.

5. The cable high-low temperature performance testing device of claim 1, wherein: The front of the mounting column is welded with a connecting frame, and the end of the connecting frame and the back of the plug cover are fixedly installed.

6. The cable high-low temperature performance testing device of claim 1, wherein: The inner recess of the assembly frame is symmetrically provided with a sliding groove, and the end of the pressing plate is slidably connected to the inner side of the sliding groove.

7. The cable high-low temperature performance testing device of claim 1, wherein: The side of the pressing plate away from the pull rod is provided with a pressing groove, and the groove shape of the pressing groove is V-shaped.

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