Cable high and low temperature test equipment convenient to install

Abstract

The invention discloses cable high and low temperature test equipment convenient to install, and belongs to the technical field of cable testing. The lifting supporting mechanism and the easy-to-install torsion mechanism are installed on the top of the heat preservation barrel. The easy-to-install torsion mechanism comprises a torsion assembly, a clutch assembly and a lifting assembly. An all-dimensional monitoring water drop removing mechanism is further arranged in the heat preservation barrel; according to the mode, before a test is carried out, the clutch assembly is controlled by the lifting assembly to separate the output end of the torsion assembly from the cable clamping assembly, so that the cable clamping assembly at the top of the heat preservation barrel is lowered to a low position, an operator can conveniently clamp and fix the two ends of a test cable, and then the cable clamping assembly is controlled by the lifting assembly to be lifted; when the cable clamping assembly is lifted to a set height, the output end of the torsion assembly is connected with the cable clamping assembly through the clutch assembly, so that the torsion assembly can smoothly output power to control the torsion of the test cable, and a torsion test is carried out on the test cable in a high-temperature or low-temperature state.

Description

Technical Field

[0001] The present invention relates to the technical field of cable testing, and in particular to a cable high and low temperature testing device which is easy to install. Background Art

[0002] For torsion-resistant flexible cables for wind power generation that meet standards such as TICW22 and GB / T33606-2017, strict quality inspections, such as high and low temperature tests and torsion tests, are required before leaving the factory to ensure that the cable performance meets the standards.

[0003] The cables used for wind power generation are relatively long. During high and low temperature tests, the cable body cannot be bent, so the required test box is relatively large, which makes the total height of the test unit and the test box usually more than ten meters. It is inconvenient to install the cable end on the clamping structure; the height of the test box is high, which is not convenient for observing the real-time status of the cable in the box, nor is it convenient for monitoring whether the temperature at various locations in the box is uniform. It is difficult for the operator to judge whether the temperature at various locations in the box meets the test settings. At the same time, when the temperature difference of the cable changes greatly, water droplets are easily condensed on its surface, affecting the test results.

[0004] Based on this, the present invention designs a cable high and low temperature test equipment that is easy to install to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a high and low temperature test device for cables that is easy to install.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high and low temperature test device for a cable that is easy to install, comprising a test chamber; The test chamber includes an insulation box body and an insulation cylinder fixedly installed on the upper end of the insulation box body symmetrically on the left and right sides; a partition is provided in the insulation box body, which divides the test chamber into a low-temperature chamber and a high-temperature chamber on the left and right sides, and the low-temperature chamber and the high-temperature chamber are respectively provided with a refrigeration unit and a heating unit; The lifting support mechanism and the easy-to-install torsion mechanism are installed on the top of the insulation cylinder. The easy-to-install torsion mechanism includes a torsion assembly, a clutch assembly and a lifting assembly. The torsion assembly and the lifting assembly are installed at the movable end of the lifting support mechanism. The upper end of the clutch assembly is connected to the output end of the torsion assembly. The lower end of the clutch assembly is installed with a cable clamping assembly for clamping and fixing one end of the test cable, and the output end of the lifting assembly is connected to the clutch assembly. The clutch assembly is used to control the power transmission between the torsion assembly and the cable clamping assembly, and the lifting assembly is used to control the clutch operation of the clutch assembly; a cable clamping assembly for clamping and fixing the other end of the test cable is installed in the insulation box; The heat preservation cylinder is also provided with an all-round monitoring and water drop removal mechanism for monitoring the environmental parameters inside the heat preservation cylinder over a large range during the test.

[0007] Furthermore, the cable clamping assembly includes a cable fixing barrel, a terminal post and a centering clamping assembly. The terminal post is fixedly installed on the inner top of the cable fixing barrel, and the lower end of the cable fixing barrel is installed with a centering clamping assembly for clamping test cables of different diameters.

[0008] Furthermore, the torsion assembly includes a reduction motor, a drive shaft and a fixed sleeve. The reduction motor is fixedly connected to the movable end of the lifting support mechanism. The drive shaft is rotationally connected to the movable end of the lifting support mechanism through a bearing. The reduction motor is drive-connected to the drive shaft. The reduction motor is used to control the rotation of the drive shaft. The fixed sleeve is fixedly connected to the movable end of the lifting support mechanism and is located on the inner side of the drive shaft.

[0009] Furthermore, the lifting assembly includes a lifting device, a cable and a connecting block. The lifting device is fixedly installed on the lifting frame. One end of the cable is connected to the output end of the lifting device, and the other end of the cable passes through the fixed sleeve and is fixedly connected to the connecting block.

[0010] Furthermore, the clutch assembly includes a socket, an upper tooth block, an insert block, a lower tooth block and a locking assembly. The socket is fixedly connected to the lower end of the drive shaft, and the insert block is fixedly installed on the upper end of the cable fixing cylinder of the cable clamping assembly in the insulation cylinder. The insert block is plugged into the socket, and an upper tooth block is fixedly installed on the top of the socket, and a lower tooth block that engages with the upper tooth block is fixedly installed on the upper end of the insert block; a locking assembly for fixing the socket and the insert block is provided on the outer wall of the socket; a through hole for accommodating the cable is provided in the socket, and the connecting block is fixedly connected to the insert block through a bearing.

[0011] Furthermore, the ends of the upper tooth block and the lower tooth block are both provided with a first guide surface; and the bottom of the socket is provided with a second guide surface.

[0012] Furthermore, the all-round monitoring and water droplet removal mechanism includes a vertical moving component, a synchronous rotating component, a cleaning component and a temperature and humidity sensor. The vertical moving component is installed inside the insulation cylinder, and the moving end of the vertical moving component is installed with a synchronous rotating component. The moving end of the synchronous rotating component is installed with multiple cleaning components in a circular array. The cleaning component is used to clean the outer wall of the test cable; the synchronous rotating component is also installed with a sensor unit for monitoring the environmental parameters inside the insulation cylinder.

[0013] Furthermore, the vertical moving assembly includes a lifting plate, a sliding rod, a gear, a rack, a vertical moving motor and a rotating shaft. The two sliding rods are symmetrically distributed front and back and fixedly connected to the inner wall of the insulation cylinder. The lifting plate is connected to the sliding rod with limited sliding; the two racks are symmetrically fixed on the front and back sides of the inner wall of the insulation cylinder, the vertical moving motor is fixedly connected to the lifting plate, the output end of the vertical moving motor is fixedly connected to the rotating shaft, the gear is fixedly connected to the rotating shaft, and the gear is meshed with the rack.

[0014] Furthermore, the synchronous rotating assembly includes a rotating ring, a worm wheel and a worm. The rotating ring is rotatably connected to the lifting plate through a bearing. The worm wheel is fixedly mounted on the outer ring surface of the rotating ring. The worm is fixedly connected to the rotating shaft, and the worm is meshingly connected to the worm wheel.

[0015] Furthermore, the cleaning assembly includes a pendulum rod, a tension spring and a bonding plate. One end of the pendulum rod is hinged to the rotating ring, and the other end of the pendulum rod is hinged to the bonding plate. A tension spring is also fixedly installed between the pendulum rod and the rotating ring. The bonding plate is used to scrape off water droplets condensed on the surface of the test cable.

[0016] Compared with the prior art, the present invention has the following beneficial effects: before conducting the test, the clutch assembly is controlled by the pulling assembly to separate the output end of the torsion assembly from the cable clamping assembly, so that the cable clamping assembly on the top of the insulation cylinder drops to a low position, so that the operator can conveniently clamp and fix the two ends of the test cable, and then the pulling assembly controls the cable clamping assembly to lift. When the cable clamping assembly is lifted to the set height, the output end of the torsion assembly is connected to the cable clamping assembly through the clutch assembly, so that the torsion assembly can smoothly output power to control the torsion of the test cable. At the same time, the temperature inside the insulation box and the insulation cylinder is controlled by the refrigeration unit or the heating unit, and the test cable is subjected to a torsion test under high or low temperature conditions. The environmental parameters inside the insulation cylinder are monitored on a large scale through the all-round monitoring and water droplet removal mechanism, and the water droplets condensed on the surface of the cable clamping assembly due to temperature difference changes are cleaned, thereby ensuring the accuracy of the test results and facilitating the operator to adjust the test parameters in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0018] Figure 1 This is a schematic diagram of the structure of a cable high and low temperature test equipment that is easy to install. Figure 1 ; Figure 2This is a schematic diagram of the structure of a cable high and low temperature test equipment that is easy to install. Figure 2 ; Figure 3 This is a schematic diagram of the structure of a cable high and low temperature test equipment that is easy to install. Figure 3 ; Figure 4 The structural three-dimensional structure of the easy-to-install torsion mechanism of the present invention Figure 1 ; Figure 5 A front half-section view of the easy-to-install torsion mechanism of the present invention; Figure 6 The structural three-dimensional structure of the easy-to-install torsion mechanism of the present invention Figure 2 ; Figure 7 The structural three-dimensional diagram of the all-round monitoring and water drop removal mechanism of the present invention Figure 1 ; Figure 8 The structural three-dimensional diagram of the all-round monitoring and water drop removal mechanism of the present invention Figure 2 .

[0019] The numbers in the figure represent: 10. Insulation box; 11. Insulation cylinder; 12. Refrigeration unit; 13. Heating unit; 14. Bracket; 15. Lifting frame; 2. Easy-to-install torsion mechanism; 21. Torsion assembly; 211. Reducer motor; 212. Drive shaft; 213. Fixed sleeve; 22. Clutch assembly; 221. Socket; 222. Upper gear block; 223. Insert block; 224. Lower gear block; 225. First guide surface; 226. Second guide surface; 227. Locking hole; 228. Locking push rod; 23. Pulling assembly; 231. Lifting device; 232. Cable; 233. Connecting block; 3. All-round Position monitoring and water drop removal mechanism; 31. Vertical moving component; 311. Lifting plate; 312. Sliding rod; 313. Gear; 314. Rack; 315. Vertical moving motor; 316. Rotating shaft; 32. Synchronous rotating component; 321. Rotating ring; 322. Worm gear; 323. Worm; 33. Cleaning component; 331. Rocker; 332. Tension spring; 333. Laminating plate; 34. Temperature and humidity sensor; 35. Monitoring camera; 4. Cable clamping component; 41. Cable fixing barrel; 42. Terminal; 43. Connecting arm; 44. Clip; 45. Bidirectional screw; 5. Test cable. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0022] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-6 , a high and low temperature test equipment for cables that is easy to install, including a test chamber; The test chamber includes an insulation box 10 and an insulation cylinder 11 symmetrically fixedly installed on the upper end of the insulation box 10. A partition is provided in the insulation box 10 to separate the test chamber into a low-temperature chamber and a high-temperature chamber on the left and right sides. The low-temperature chamber and the high-temperature chamber are respectively provided with a refrigeration unit 12 and a heating unit 13. The refrigeration unit 12 and the heating unit 13 adopt mature technologies in this field and will not be described in detail in this article. The lifting support mechanism and the easy-to-install torsion mechanism 2 are installed on the top of the insulation cylinder 11. The easy-to-install torsion mechanism 2 includes a torsion assembly 21, a clutch assembly 22 and a lifting assembly 23. The torsion assembly 21 and the lifting assembly 23 are installed at the movable end of the lifting support mechanism. The upper end of the clutch assembly 22 is connected to the output end of the torsion assembly 21. The lower end of the clutch assembly 22 is installed with a cable clamping assembly 4 for clamping and fixing one end of the test cable 5, and the output end of the lifting assembly 23 is connected to the clutch assembly 22. The clutch assembly 22 is used to control the power transmission between the torsion assembly 21 and the cable clamping assembly 4, and the lifting assembly 23 is used to control the clutch operation of the clutch assembly 22; a cable clamping assembly 4 for clamping and fixing the other end of the test cable 5 is installed in the insulation box 10; The insulation cylinder 11 is also provided with an all-round monitoring and water droplet removal mechanism 3, which is used to monitor the environmental parameters in the insulation cylinder 11 over a large range during the test, such as temperature and humidity, and to clean the water droplets condensed on the surface of the cable clamping assembly 4 due to temperature differences.

[0023] In the invention, before conducting the test, the clutch assembly 22 is first controlled by the pulling assembly 23 to separate the output end of the torsion assembly 21 from the cable clamping assembly 4, so that the cable clamping assembly 4 on the top of the insulation cylinder 11 drops to a low position, so that the operator can easily clamp and fix the two ends of the test cable 5, and then the pulling assembly 23 controls the cable clamping assembly 4 to lift. When the cable clamping assembly 4 is lifted to the set height, the output end of the torsion assembly 21 is connected to the cable clamping assembly 4 through the clutch assembly 22, so that the torsion assembly 21 can smoothly output power to control the torsion of the test cable 5. At the same time, the temperature inside the insulation box 10 and the insulation cylinder 11 is controlled by the refrigeration unit 12 or the heating unit 13, and the test cable 5 is subjected to a torsion test under high or low temperature conditions. The environmental parameters inside the insulation cylinder 11 are monitored on a large scale through the all-round monitoring and water droplet removal mechanism 3, and the water droplets condensed on the surface of the cable clamping assembly 4 due to temperature difference changes are cleaned to ensure the accuracy of the test results and facilitate the operator to adjust the test parameters in time.

[0024] See also Figure 4 and Figure 6 The cable clamping assembly 4 includes a cable fixing barrel 41, a terminal 42 and a centering clamping assembly. The terminal 42 is fixedly installed on the inner top of the cable fixing barrel 41, and the lower end of the cable fixing barrel 41 is installed with a centering clamping assembly for clamping test cables 5 of different diameters to prevent the rotation center of the test cable 5 from being offset during the torsion test. The centering clamping assembly includes a connecting arm 43 and a clip 44. The connecting arm 43 is symmetrically fixedly installed on both sides of the cable fixing barrel 41. The clips 44 are symmetrically arranged on both sides of the connecting arm 43. The bidirectional screw 45 is rotatably connected to the connecting arm 43 through a bearing, and the clip 44 is threadedly connected to the bidirectional screw 45 through a threaded sleeve. By rotating the bidirectional screw 45, the two clips 44 can be synchronously moved closer to or away from the test cable 5 inserted into the cable fixing barrel 41, thereby realizing the centering clamping function of the test cable 5. If the cable insulation sheath is stripped off by about 300 mm before the test cable 5 is clamped and fixed, it can be determined according to the actual situation of the user. A thinner wire is used to connect the cable end to the terminal 42 in the cable fixing barrel 41 to make the test cable 5 conductive. If the test cable 5 breaks during the test, the terminal 42 will sense the change in the electrical signal.

[0025] The lifting support mechanism includes a bracket 14 and a lifting frame 15. The bracket 14 is arranged on the top of the heat-insulating cylinder 11. The lifting frame 15 is vertically slidably installed on the inner side of the bracket 14 through a slide rail slider limiting structure. A lifting device is fixedly installed on the bracket 14. The output end of the lifting device is fixedly connected to the lifting frame 15. The lifting device can adopt a motor and screw lifting structure. The torsion assembly 21 includes a reduction motor 211, a drive shaft 212, and a fixed sleeve 213. The reduction motor 211 is fixedly connected to the lifting frame 15. The drive shaft 212 is rotatably connected to the lifting frame 15 via a bearing. The reduction motor 211 is drivably connected to the drive shaft 212. The reduction motor 211 is used to control the rotation of the drive shaft 212. The fixed sleeve 213 is fixedly connected to the lifting frame 15 and is located on the inner side of the drive shaft 212. The lifting assembly 23 includes a lifting device 231, a cable 232, and a connecting block 233. The lifting device 231 is fixedly mounted on the lifting frame 15. One end of the cable 232 is connected to the output end of the lifting device 231, and the other end of the cable 232 passes through the fixed sleeve 213 and is fixedly connected to the connecting block 233. The lifting device 231 adopts mature technology in the field, such as a winch. The clutch assembly 22 includes a socket 221, an upper tooth block 222, an insert block 223, a lower tooth block 224 and a locking assembly. The socket 221 is fixedly connected to the lower end of the drive shaft 212. The upper end of the cable fixing cylinder 41 of the cable clamping assembly 4 in the insulation cylinder 11 is fixedly installed with an insert block 223. The insert block 223 is plugged into the socket 221. The upper tooth block 222 is fixedly installed on the top of the socket 221. The upper end of the insert block 223 is fixedly installed with a lower tooth block 224 that engages with the upper tooth block 222. The outer wall of the socket 221 is provided with a locking assembly for fixing the socket 221 and the insert block 223. A through hole for accommodating the cable 232 is provided in the socket 221. The connecting block 233 is fixedly connected to the insert block 223 through a bearing. The ends of the upper tooth block 222 and the lower tooth block 224 are both provided with a first guide surface 225, so that when the upper tooth block 222 and the lower tooth block 224 come into contact, they will automatically rotate to achieve alignment and engagement; the bottom of the socket 221 is provided with a second guide surface 226, so that when the plug block 223 comes into contact with the socket 221, the plug block 223 will automatically slide toward the inside of the socket 221 to achieve alignment and engagement; The locking assembly includes a locking hole 227 and a locking push rod 228. The side wall of the plug block 223 is provided with a plurality of locking holes 227 in a circumferential array. The locking holes 227 correspond one-to-one with the teeth of the lower tooth block 224. A locking push rod 228 is fixedly mounted on the side wall of the socket 221. The piston of the locking push rod 228 is plugged into the locking hole 227, so that the socket 221 and the plug block 223 are locked. The locking push rod 228 can be an electromagnetic push rod. In the present invention, the retraction and extension of the pull rope 232 is controlled by the rotating ring 321, and the lifting and lowering of the plug block 223 can be controlled, so that the cable fixing barrel 41 drops into the insulation box 10, which is convenient for the operator to clamp and fix the end of the test cable 5. After the test cable 5 is fixed to the cable fixing barrel 41, the plug block 223 is controlled to rise until the plug block 223 is inserted into the socket 221 so that the upper tooth block 222 and the lower tooth block 224 are engaged. Then, the output end of the locking push rod 228 extends and is inserted into the locking hole 227, firmly locking the socket 221 and the plug block 223. When the reduction motor 211 drives the drive shaft 212 to rotate, the cable fixing barrel 41 can be driven to rotate through the cooperation of the socket 221 and the plug block 223 to perform a torsion test on the test cable 5.

[0026] See also Figure 7 and Figure 8 The all-round monitoring and water droplet removal mechanism 3 includes a vertical moving component 31, a synchronous rotating component 32, a cleaning component 33 and a temperature and humidity sensor 34. The vertical moving component 31 is installed on the inner side of the heat preservation cylinder 11. The moving end of the vertical moving component 31 is installed with a synchronous rotating component 32. The moving end of the synchronous rotating component 32 is installed with multiple cleaning components 33 in a circular array. The cleaning component 33 is used to clean the outer wall of the test cable 5; the synchronous rotating component 32 is also installed with a sensor unit for monitoring the environmental parameters inside the heat preservation cylinder 11; The vertical movement assembly 31 includes a lifting plate 311, a sliding rod 312, a gear 313, a rack 314, a vertical movement motor 315 and a rotating shaft 316. The two sliding rods 312 are symmetrically distributed front and back and fixedly connected to the inner wall of the heat-insulating cylinder 11. The lifting plate 311 is limitedly slidably connected to the sliding rod 312; the two racks 314 are symmetrically fixedly installed on the front and back sides of the inner wall of the heat-insulating cylinder 11; the vertical movement motor 315 is fixedly connected to the lifting plate 311; the output end of the vertical movement motor 315 is fixedly connected to the rotating shaft 316; the gear 313 is fixedly connected to the rotating shaft 316, and the gear 313 is meshed with the rack 314; The synchronous rotation assembly 32 includes a rotating ring 321, a worm gear 322, and a worm 323. The rotating ring 321 is rotatably connected to the lifting plate 311 via a bearing. The worm gear 322 is fixedly mounted on the outer ring surface of the rotating ring 321. The worm 323 is fixedly connected to the rotating shaft 316, and the worm 323 is meshed with the worm gear 322. The cleaning assembly 33 includes a swing rod 331, a tension spring 332, and a bonding plate 333. One end of the swing rod 331 is hinged to the rotating ring 321, and the other end of the swing rod 331 is hinged to the bonding plate 333. A tension spring 332 is fixedly installed between the swing rod 331 and the rotating ring 321. The bonding plate 333 is used to scrape off condensed water droplets on the surface of the test cable 5. The sensor unit includes a temperature and humidity sensor 34 and a monitoring camera 35 fixedly mounted on the rotating ring 321 .

[0027] In the present invention, the vertical moving motor 315 drives the rotating shaft 316 to rotate, so that the gear 313 and the worm 323 rotate synchronously, and the gear 313 and the rack 314 cooperate to drive the lifting plate 311 to move vertically under the limiting action of the slide bar 312. At the same time, the worm gear 322 and the worm 323 cooperate to drive the rotating ring 321 to rotate, so that the temperature and humidity sensor 34 and the monitoring camera 35 perform circular motion while moving vertically, and their motion trajectory is spiral, so that the temperature and humidity sensor 34 and the monitoring camera 35 can monitor the test environment in the insulation cylinder 11 over a large range. At the same time, the tension spring 332 pulls the rocker arm 331 so that the bonding plate 333 is always in contact with the surface of the test cable 5, thereby realizing the cleaning operation of water droplets on the surface of the test cable 5.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high and low temperature cable test device that is easy to install, including a test chamber, characterized by: The test chamber comprises a heat preservation box (10) and a heat preservation cylinder (11) fixedly mounted on the upper end of the heat preservation box (10) in a symmetrical manner on both sides; a partition is provided in the heat preservation box (10), and the partition separates the test chamber into a low-temperature chamber and a high-temperature chamber on the left and right sides, and the low-temperature chamber and the high-temperature chamber are respectively provided with a refrigeration unit (12) and a heating unit (13); The lifting support mechanism and the easy-to-install twisting mechanism (2) are installed on the top of the heat-insulating cylinder (11). The easy-to-install twisting mechanism (2) includes a twisting assembly (21), a clutch assembly (22) and a lifting assembly (23). The twisting assembly (21) and the lifting assembly (23) are installed at the movable end of the lifting support mechanism. The upper end of the clutch assembly (22) is connected to the output end of the twisting assembly (21). The lower end of the clutch assembly (22) is installed with a cable clamping assembly (4) for clamping and fixing one end of the test cable (5). The output end of the lifting assembly (23) is connected to the clutch assembly (22). The clutch assembly (22) is used to control the power transmission between the twisting assembly (21) and the cable clamping assembly (4). The lifting assembly (23) is used to control the clutch operation of the clutch assembly (22). A cable clamping assembly (4) for clamping and fixing the other end of the test cable (5) is installed in the heat-insulating box (10). The heat-insulating cylinder (11) is also provided with an all-round monitoring and water drop removal mechanism (3) for monitoring environmental parameters within the heat-insulating cylinder (11) over a wide range during testing.

2. The easy-to-install cable high and low temperature test equipment according to claim 1 is characterized in that: The cable clamping assembly (4) comprises a cable fixing barrel (41), a terminal post (42) and a centering clamping assembly, wherein the terminal post (42) is fixedly mounted on the inner top of the cable fixing barrel (41), and the centering clamping assembly for clamping test cables (5) of different diameters is mounted on the lower end of the cable fixing barrel (41).

3. The easy-to-install cable high and low temperature test equipment according to claim 2, characterized in that: The torsion assembly (21) comprises a reduction motor (211), a drive shaft (212) and a fixed sleeve (213); the reduction motor (211) is fixedly connected to the movable end of the lifting support mechanism; the drive shaft (212) is rotationally connected to the movable end of the lifting support mechanism via a bearing; the reduction motor (211) is drivingly connected to the drive shaft (212); the reduction motor (211) is used to control the rotation of the drive shaft (212); and the fixed sleeve (213) is fixedly connected to the movable end of the lifting support mechanism and is located on the inner side of the drive shaft (212).

4. The easy-to-install cable high and low temperature test equipment according to claim 3 is characterized in that: The lifting assembly (23) includes a lifting device (231), a cable (232) and a connecting block (233). The lifting device (231) is fixedly mounted on the lifting frame (15). One end of the cable (232) is connected to the output end of the lifting device (231). The other end of the cable (232) passes through a fixed sleeve (213) and is fixedly connected to the connecting block (233).

5. The easy-to-install cable high and low temperature test equipment according to claim 4, characterized in that: The clutch assembly (22) includes a socket (221), an upper tooth block (222), an insert block (223), a lower tooth block (224) and a locking assembly. The socket (221) is fixedly connected to the lower end of the drive shaft (212). The insert block (223) is fixedly installed on the upper end of the cable fixing cylinder (41) of the cable clamping assembly (4) in the heat-insulating cylinder (11). The insert block (223) is plugged into the socket (221). The upper tooth block (222) is fixedly installed on the top of the socket (221). The lower tooth block (224) engaged with the upper tooth block (222) is fixedly installed on the upper end of the insert block (223). The outer wall of the socket (221) is provided with a locking assembly for fixing the socket (221) and the insert block (223). A through hole for accommodating a cable (232) is provided in the socket (221). The connecting block (233) is fixedly connected to the insert block (223) via a bearing.

6. The easy-to-install cable high and low temperature test equipment according to claim 5, characterized in that: The ends of the upper tooth block (222) and the lower tooth block (224) are both provided with a first guide surface (225); and the bottom of the socket (221) is provided with a second guide surface (226).

7. The easy-to-install cable high and low temperature test equipment according to claim 1, characterized in that: The all-round monitoring water droplet removal mechanism (3) includes a vertical moving component (31), a synchronous rotating component (32), a cleaning component (33) and a temperature and humidity sensor (34). The vertical moving component (31) is installed on the inner side of the heat-insulating cylinder (11). The moving end of the vertical moving component (31) is installed with a synchronous rotating component (32). The moving end of the synchronous rotating component (32) is installed with a plurality of cleaning components (33) in a circular array. The cleaning component (33) is used to clean the outer wall of the test cable (5). The synchronous rotating component (32) is also installed with a sensor unit for monitoring environmental parameters in the heat-insulating cylinder (11).

8. The easy-to-install cable high and low temperature test equipment according to claim 7, characterized in that: The vertical moving assembly (31) includes a lifting plate (311), a slide bar (312), a gear (313), a rack (314), a vertical moving motor (315) and a rotating shaft (316). The two slide bars (312) are symmetrically distributed front and back and fixedly connected to the inner wall of the heat-insulating cylinder (11). The lifting plate (311) and the slide bars (312) are limitedly slidably connected. The two rack bars (314) are symmetrically fixedly installed on the front and back sides of the inner wall of the heat-insulating cylinder (11). The vertical moving motor (315) is fixedly connected to the lifting plate (311). The output end of the vertical moving motor (315) is fixedly connected to the rotating shaft (316). The gear (313) is fixedly connected to the rotating shaft (316), and the gear (313) is meshedly connected to the rack bar (314).

9. The easy-to-install cable high and low temperature test equipment according to claim 8, characterized in that: The synchronous rotation assembly (32) includes a rotating ring (321), a worm wheel (322), and a worm (323). The rotating ring (321) is rotatably connected to the lifting plate (311) via a bearing. The worm wheel (322) is fixedly mounted on the outer ring surface of the rotating ring (321). The worm (323) is fixedly connected to the rotating shaft (316), and the worm (323) is meshedly connected to the worm wheel (322).

10. The easy-to-install cable high and low temperature test equipment according to claim 9, characterized in that: The cleaning assembly (33) includes a swing rod (331), a tension spring (332) and a bonding plate (333). One end of the swing rod (331) is hinged to the rotating ring (321), and the other end of the swing rod (331) is hinged to the bonding plate (333). A tension spring (332) is fixedly installed between the swing rod (331) and the rotating ring (321). The bonding plate (333) is used to scrape off water droplets condensed on the surface of the test cable (5).

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