Thermal shock resistance test device for cable sheath

Abstract

The utility model discloses a cable sheath thermal shock resistance test device, which comprises a base, a cross beam frame and an impact column, one side of the base is fixedly connected with two support frames, the cross beam frame is fixedly arranged on one sides of the two support frames far away from the base, the impact column is movably sleeved in an inner ring of the cross beam frame, and the cross beam frame is fixedly arranged on the base. A first rotating shaft is fixedly connected to one side of the base through a first bearing frame, the outer ring of the first rotating shaft is fixedly sleeved with a first grooved wheel and a second belt wheel, an extrusion mechanism in sliding connection with the supporting frame is arranged above the first grooved wheel, a driving mechanism is installed on the cross beam frame, and the driving mechanism is in transmission connection with the first rotating shaft and the impact column. According to the utility model, when the driving mechanism drives the rotating shaft I and the grooved wheel I to rotate, the driving mechanism can also drive the impact column to do reciprocating motion uninterruptedly, so that an impact experiment can be carried out on the cable sheath in the process of moving and replacing the impact position, and complete experiment data can be conveniently acquired.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable sheath detection, in particular to a cable sheath heat shock resistance test device. Background Art

[0002] Cables are made of cable sheath, wrapping layer and current-carrying conductor. Cable sheath is the outermost layer of the cable, which is used to insulate and protect the cable.

[0003] The cable sheath needs to be subjected to heat shock resistance tests at multiple points in order to collect complete test data. However, the existing test equipment cannot continuously perform impact tests on different positions of the cable sheath, and manual adjustment of the impact position of the cable sheath is required, which is cumbersome and inefficient. Utility Model Content

[0004] The utility model aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] A cable sheath heat shock resistance test device comprises a base, a crossbeam frame and an impact column, wherein one side of the base is fixedly connected to two support frames, the crossbeam frame is fixedly installed on the side of the two support frames away from the base, the impact column is movably sleeved in the inner ring of the crossbeam frame, one side of the base is fixedly connected to a rotating shaft 1 through a bearing frame 1, the outer ring fixed sleeve of the rotating shaft 1 is provided with a groove wheel 1 and a pulley 2, an extrusion mechanism slidably connected to the support frame is arranged above the groove wheel 1, the crossbeam frame is installed with a driving mechanism, and the driving mechanism is respectively connected to the rotating shaft 1 and the impact column in a transmission manner.

[0006] As a preferred embodiment of the above technical solution, the extrusion mechanism includes:

[0007] A slider is slidably connected to a support frame, and an inner ring rotating sleeve of the slider is provided with a second rotating shaft, an outer ring fixed sleeve of the second rotating shaft is provided with a second groove wheel, a side of the slider away from the first groove wheel is rotatably connected to a screw rod, and an end of the screw rod away from the slider is threadedly connected to the support frame.

[0008] As a preferred embodiment of the above technical solution, the driving mechanism includes:

[0009] A driving member, wherein the driving member is fixedly mounted on the inner wall of the crossbeam frame via a mounting seat, and an output end of the driving member is fixedly connected with a rotating shaft three, an outer ring fixed sleeve of the rotating shaft three is provided with a cam and a pulley one, and the pulley one is transmission-connected with a pulley two via a belt.

[0010] As a preferred embodiment of the above technical solution, one end of the impact column is fixedly connected to a guide block, one side of the guide block is fixedly connected to an elastic member, and one end of the elastic member away from the guide block is fixedly connected to the crossbeam frame.

[0011] As a preferred embodiment of the above technical solution, the inner wall of the crossbeam frame is slidably connected to a circular frame, the outer side of the circular frame is fixedly connected to an extrusion rod, the end of the extrusion rod away from the circular frame abuts against the hypotenuse of the guide block, and the cam abuts against the inner wall of the circular frame.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model can adjust the distance between the second groove wheel and the first groove wheel through the threaded cooperation of the screw rod and the support frame, which can not only fix the cable sheaths of different diameters, but also facilitate the movement of the cable sheath to continuously change the impact position;

[0014] 2. The utility model drives the rotating shaft 1 and the groove wheel 1 to rotate through the driving mechanism, and the driving mechanism can also drive the impact column to perform uninterrupted reciprocating motion, so that the cable sheath can be subjected to impact test in the process of moving and changing the impact position, thereby facilitating the collection of complete experimental data. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is a schematic diagram of the structure of a cable sheath heat shock resistance test device in an embodiment;

[0016] Figure 2 What is shown is a schematic diagram of the structure of the driving mechanism in the embodiment.

[0017] Description of reference numerals:

[0018] 1. Base; 2. Electric heater; 3. Bearing frame 1; 4. Rotating shaft 1; 5. Groove wheel 1; 6. Support frame; 7. Slider; 8. Rotating shaft 2; 9. Groove wheel 2; 10. Screw; 11. Beam frame; 12. Guide block; 13. Impact column; 14. Elastic member; 15. Reciprocating frame; 16. Extrusion rod; 17. Mounting seat; 18. Driving member; 19. Rotating shaft 3; 20. Cam; 21. Bearing frame 2; 22. Pulley 1; 23. Belt; 24. Pulley 2. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0020] Example

[0021] like Figure 1As shown, the cable sheath heat shock test device includes a base 1, a beam frame 11 and an impact column 13. One side of the base 1 is fixedly connected to two support frames 6. The beam frame 11 is fixedly installed on the side of the two support frames 6 away from the base 1. The impact column 13 is movably sleeved in the inner ring of the beam frame 11. The cross section of the impact column 13 is polygonal, which is used to prevent the impact column 13 from rotating in the inner ring of the beam frame 11, and the end of the impact column 13 away from the beam frame 11 is conical. One side of the base 1 is fixedly connected to a rotating shaft 4 through a bearing frame 3. The rotating shaft 4 is provided with two groups, which are respectively located in the middle of the two support frames 6. The outer ring of the rotating shaft 4 is fixedly sleeved with a groove wheel 5 and a pulley 24, wherein any one of the two rotating shafts 4 is provided with a pulley 24, and an extrusion mechanism slidably connected to the support frame 6 is provided above the groove wheel 5. The beam frame 11 is installed with a driving mechanism, and the driving mechanism is respectively connected to the rotating shaft 4 and the impact column 13.

[0022] Specifically, the cable sheath is first passed through the groove wheel 5 and the clamping mechanism, and then the cable sheath is clamped and fixed by the clamping mechanism. Finally, a rotating shaft 4 is driven to rotate by the driving mechanism. The rotation of the rotating shaft 4 can drive the cable sheath to move continuously through the cooperation of the groove wheel 5 and the clamping mechanism. At the same time, the driving mechanism can simultaneously drive the impact column 13 to perform linear reciprocating movement, and perform an impact test on the moving cable sheath, thereby performing a multi-point impact test.

[0023] like Figure 1 As shown, the extrusion mechanism includes a slider 7, which is slidably connected to the support frame 6, and the inner ring rotating sleeve of the slider 7 is provided with a rotating shaft 2 8, and the outer ring fixed sleeve of the rotating shaft 2 8 is provided with a groove wheel 2 9. The rotating shaft 2 8 and the groove wheel 2 9 can be moved above the groove wheel 1 5 through the slider 7, so as to change the gap between the groove wheel 1 5 and the groove wheel 2 9, so that cable sheaths of different diameters can be placed therein. The side of the slider 7 away from the groove wheel 1 5 is rotatably connected to a screw rod 10, and the end of the screw rod 10 away from the slider 7 is threadedly connected to the support frame 6.

[0024] Specifically, when the screw rod 10 is rotated, since the slider 7 is slidably connected to the support frame 6, the slider 7 does not rotate together with the screw rod 10, but moves up and down together with the screw rod 10, thereby changing the gap between the groove wheel 1 5 and the groove wheel 2 9, so that cable sheaths of different diameters can be placed therein.

[0025] like Figure 1 and Figure 2As shown, the driving mechanism includes a driving member 18, which adopts a servo motor. The driving member 18 is fixedly mounted on the inner wall of the beam frame 11 through a mounting seat 17, and the output end of the driving member 18 is fixedly connected to a rotating shaft 3 19, and the rotating shaft 3 19 is fixedly connected to a bearing frame 21, and the end of the bearing frame 21 away from the rotating shaft 3 19 is fixedly connected to the inner wall of the beam frame 11 for auxiliary support of the rotating shaft 3 19. The outer ring fixed sleeve of the rotating shaft 3 19 is provided with a cam 20 and a pulley 1 22, and the pulley 1 22 is transmission-connected to the pulley 2 24 through a belt 23.

[0026] Specifically, starting the driving member 18 can drive the rotating shaft three 19 to rotate, and the rotation of the rotating shaft three 19 can simultaneously drive the cam 20 and the pulley one 22 to rotate synchronously. The rotation of the pulley one 22 drives the rotating shaft one 4 to rotate through the belt 23 and the pulley two 24, and then drives the groove wheel one 5 to move the cable sheath.

[0027] like Figure 1 As shown, one end of the impact column 13 is fixedly connected to a guide block 12, which is in a right-angled trapezoid. One side of the guide block 12 is fixedly connected to an elastic member 14, which is a spring. The end of the elastic member 14 away from the guide block 12 is fixedly connected to the crossbeam frame 11.

[0028] like Figure 1 As shown, the inner wall of the crossbeam frame 11 is slidably connected with a circular frame 15, and the outer side of the circular frame 15 is fixedly connected with an extrusion rod 16. The end of the extrusion rod 16 away from the circular frame 15 abuts against the hypotenuse of the guide block 12, and the cam 20 abuts against the inner wall of the circular frame 15.

[0029] Specifically, when the cam 20 rotates, the circular frame 15 will continuously reciprocate on the inner wall of the crossbeam frame 11. In the process of moving toward the guide block 12 through the extrusion rod 16, the circular frame 15 will squeeze the impact column 13 toward the cable sheath to perform an impact test on the cable sheath. When the circular frame 15 drives the extrusion rod 16 away from the guide block 12, the impact column 13 will be pushed away from the cable sheath by the force of the elastic member 14, and it will reciprocate in this way.

[0030] like Figure 1 As shown, an electric heater 2 is fixedly connected to one side of the base 1, and the heat resistance test of the cable sheath is performed through the electric heater 2.

[0031] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A cable sheath heat shock test device, comprising a base (1), a crossbeam frame (11) and an impact column (13), wherein one side of the base (1) is fixedly connected to two support frames (6), the crossbeam frame (11) is fixedly mounted on a side of the two support frames (6) away from the base (1), and the impact column (13) is movably sleeved in an inner circle of the crossbeam frame (11), characterized in that: One side of the base (1) is fixedly connected to a rotating shaft (4) via a bearing frame (3); an outer ring fixed sleeve of the rotating shaft (4) is provided with a groove wheel (5) and a pulley (24); an extrusion mechanism slidably connected to a support frame (6) is provided above the groove wheel (5); a driving mechanism is installed on the crossbeam frame (11); and the driving mechanism is respectively connected to the rotating shaft (4) and the impact column (13) in a transmission manner.

2. The cable sheath thermal shock resistance test device according to claim 1, characterized in that: The extrusion mechanism comprises: A slider (7) is slidably connected to a support frame (6), and an inner ring rotating sleeve of the slider (7) is provided with a second rotating shaft (8), an outer ring fixed sleeve of the second rotating shaft (8) is provided with a second groove wheel (9), a side of the slider (7) away from the first groove wheel (5) is rotatably connected to a screw rod (10), and an end of the screw rod (10) away from the slider (7) is threadedly connected to the support frame (6).

3. The cable sheath thermal shock resistance testing device according to claim 1, characterized in that: The driving mechanism comprises: A driving member (18), wherein the driving member (18) is fixedly mounted on the inner wall of the crossbeam frame (11) via a mounting seat (17), and the output end of the driving member (18) is fixedly connected to a rotating shaft three (19), and an outer ring fixed sleeve of the rotating shaft three (19) is provided with a cam (20) and a pulley one (22), and the pulley one (22) is transmission-connected to a pulley two (24) via a belt (23).

4. The cable sheath heat shock resistance test device according to claim 3, characterized in that: One end of the impact column (13) is fixedly connected to a guide block (12), one side of the guide block (12) is fixedly connected to an elastic member (14), and one end of the elastic member (14) away from the guide block (12) is fixedly connected to the crossbeam frame (11).

5. The cable sheath heat shock resistance test device according to claim 4, characterized in that: The inner wall of the crossbeam frame (11) is slidably connected to a circular frame (15), the outer side of the circular frame (15) is fixedly connected to an extrusion rod (16), one end of the extrusion rod (16) away from the circular frame (15) abuts against the oblique edge of the guide block (12), and the cam (20) abuts against the inner wall of the circular frame (15).

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