A hinge high and low temperature torque test device

Abstract

The invention discloses a high and low temperature torque test device for a hinge, which relates to the technical field of hinge testing, and comprises a thermal control component, a hinge component, a positioning component, a clamping component, a box component, a driving component and a testing component. The hinge component is placed on the top of the box component, the hinge component can be positioned by the positioning component, the hinge component can be clamped by the clamping component, the testing component can be driven by the driving component, the hinge component can be tested by the testing component, the hinge component, the testing component and the driving component can be heated by the thermal control component, the driving component drives the testing component, and then drives the hinge component to rotate. The invention can effectively obtain the history curves of the driving torque and friction resistance torque of the hinge component and the unfolding angle, and check whether the setting of the driving torque and the friction resistance torque are within the designed range. The invention has a compact structure and complete functions, and can meet the testing of various spacecraft hinges.

Description

Technical Field

[0001] The invention relates to the technical field of hinge testing, and in particular to a hinge high and low temperature torque testing device. Background Art

[0002] With the continuous development of the aerospace industry, various spacecraft continue to emerge. However, as a typical safety-critical system, once the system function fails, it will cause significant losses to property, life, etc., and the environment may be severely damaged. Reliability testing of spacecraft is a key technology. Spacecraft usually include many various hinges, and these hinges play a very important role in them. Once the hinge fails or cannot meet the predetermined function, it will cause the entire spacecraft to fail and cause significant losses. At the same time, the service scene of spacecraft is generally a vacuum, high and low temperature space environment, which is quite different from the ground environment. It is necessary to conduct corresponding tests on the ground according to the space environment to verify whether the performance of the hinge meets the requirements.

[0003] Therefore, the hinge ground test equipment is very important, which can greatly ensure the performance of spacecraft products on orbit. At present, there is still a lack of equipment for hinge performance testing in vacuum, high and low temperature environments. Summary of the invention

[0004] The purpose of the present invention is to provide a hinge high and low temperature torque test device, which solves the problem of hinge performance testing in vacuum, high and low temperature environments.

[0005] The present invention solves the above technical problems through the following technical solutions. The present invention includes a thermal control component, a hinge component, a positioning component, a clamping component, a box component, a drive component and a test component. The device is arranged in a vacuum tank, the hinge component is arranged on the top of the box component, the thermal control component controls the high and low temperatures of the hinge component, and performs temperature control on the test component and the drive component, the positioning component is arranged on the top of the box component, the clamping component is arranged on the top of the box component, the positioning component positions the hinge component so that the rotation center of the hinge component is concentric with the outward extension axis of the test component, the clamping component clamps and fixes the hinge component in the test position, the drive component is arranged inside the box component, the test component is arranged on the box component, the drive component is connected to the test component, the drive component controls the test component to drive one end of the hinge component to rotate, and measures the torque characteristics during the rotation of the hinge component.

[0006] Furthermore, the thermal control component includes an infrared cage, a driver heating plate, a motor heating plate, a reducer heating plate and a torque sensor heating plate. The infrared cage is arranged on the outside of the hinge assembly and on the top of the box assembly to heat the hinge assembly. The driver heating plate, the motor heating plate and the reducer heating plate heat the drive assembly, and the torque sensor heating plate heats the test assembly.

[0007] Furthermore, the hinge assembly includes a first rotating plate and a second rotating plate, the first rotating plate and the second rotating plate are rotatably connected via a rotating shaft, an upper positioning point is provided at the top of the rotating shaft, and a lower positioning point is provided at the bottom of the rotating shaft, and clamping planes are provided on the first rotating plate and the second rotating plate, and the clamping planes are configured as an upper clamping plane and a lower clamping plane, the positioning assembly positions the upper positioning point and the lower positioning point, and the clamping assembly fits and clamps the upper clamping plane and the lower clamping plane.

[0008] Furthermore, the positioning assembly includes a lifting platform, a base, a lower top, an upper top and an extension platform, the base is connected to the top of the box assembly, the lifting platform is connected to the top of the base, the upper top is connected to the lifting platform through the extension platform, the lower top is connected to the top of the test assembly, and the upper top and the lower top position the hinge assembly.

[0009] Furthermore, the lifting platform includes a slide rail, a sleeve, a rack, a gear and a drive motor. The slide rail is connected to the base, the rack is connected to the slide rail, the sleeve is slidably connected to the slide rail, the gear is rotatably connected to the inner side of the sleeve and meshes with the rack, the drive motor is connected to the sleeve, and the output shaft of the drive motor is connected to the rotating shaft of the gear, and the extended platform is connected to the sleeve.

[0010] Furthermore, the clamping assembly includes a second optical axis, a second cross clamp, a planar clamping platform, a first cross clamp, a first optical axis, a support and a clamping iron. Two of the support and the clamping iron are provided. The two supports are respectively connected to the top of the box assembly through two clamping irons. The first optical axis is connected between the two supports. The first cross clamp is slidably connected to the outer side of the first optical axis. The second optical axis is connected to the top of the first cross clamp. The second cross clamp is slidably connected to the outer side of the second optical axis. The planar clamping platform is connected to the second cross clamp, and the planar clamping platform clamps the clamping plane.

[0011] Furthermore, the planar clamping table includes a U-shaped plate, a threaded rod, a rotating wheel, and a moving block. The moving block is slidably connected to the inner side of the U-shaped plate, the threaded rod is threadedly connected to the top of the U-shaped plate, the rotating wheel is connected to the top of the threaded rod, the moving block is rotatably connected to the bottom of the threaded rod, and the U-shaped plate is connected to the second cross clamp.

[0012] Furthermore, the box assembly includes a front box plate, a rear box plate, a lower box plate, an upper box plate, a first side plate, a second side plate, a third side plate, box bolts, support ears and handles. The front box plate, the rear box plate, the lower box plate, the upper box plate, the first side plate, the second side plate and the third side plate are all assembled by screwing with box bolts. The front box plate is provided with an observation hole, the rear box plate is provided with a circuit hole, and the upper box plate is provided with two symmetrically distributed planar grooves. The support ears are provided in two groups, with two in each group. The two groups of support ears are respectively connected to the first side plate and the second side plate. Two handles are provided, and the two handles are respectively connected to the first side plate and the second side plate.

[0013] Furthermore, the drive assembly includes a driver, a motor, a reducer, a first bevel gear, a second bevel gear, a third bevel gear, a handwheel, a movable bracket, a fixed plate, a sliding fastening bolt, a sliding fastening nut, a handwheel shaft, a handwheel shaft end cover, a first end cover fixing bolt, a first gasket, a handwheel bearing, a second gasket, a first bevel gear end cover, a second end cover fixing bolt, a second bevel gear end cover, a third end cover fixing bolt and a reducer connecting bolt. The movable bracket is connected to the planar groove of the upper box plate through the fixed plate, the sliding fastening bolt and the sliding fastening nut. The driver output shaft is connected to the motor input shaft, the motor output shaft is connected to the reducer input shaft, the reducer is connected to the movable bracket through the reducer connecting bolt, and the reducer output The output shaft is connected to the first bevel gear through the second bevel gear end cover and the third end cover fixing bolts, the handwheel is connected to one end of the handwheel shaft, the handwheel bearings are provided with two, the handwheel shaft is connected to the movable bracket through two handwheel bearings, the other end of the handwheel shaft is connected to the first bevel gear through the first bevel gear end cover and the second end cover fixing bolts, the second gasket is sleeved on the outside of the handwheel shaft and is located between the first bevel gear and the handwheel bearing, the handwheel shaft end cover is sleeved on the outside of the handwheel shaft, the handwheel shaft end cover is connected to the movable bracket through the first end cover fixing bolts, the outside of the handwheel shaft is sleeved with a first gasket between the two handwheel bearings, the second bevel gear is connected to the bottom of the test assembly, and the first bevel gear and the third bevel gear are both meshed with the second bevel gear.

[0014] Furthermore, the test assembly includes a torque sensor, a horizontal bar, a shift fork nut, a shift fork shaft, a coupling, a platform extension shaft bearing, a platform extension shaft end cover, a platform extension shaft, a third gasket, a fourth gasket and a fifth gasket. The bottom of the torque sensor is connected to the second bevel gear, the top of the torque sensor is connected to the platform extension shaft through a coupling, the torque sensor is sleeved with a fifth gasket, the outer side of the platform extension shaft is sleeved with a fourth gasket, two platform extension shaft bearings are provided, the platform extension shaft is connected to the upper box plate through two platform extension shaft bearings, the outer side of the platform extension shaft is also sleeved with a third gasket between the two platform extension shaft bearings, the top of the platform extension shaft is also sleeved with a platform extension shaft end cover, the platform extension shaft end cover is connected to the upper box plate, the horizontal bar is connected to the platform extension shaft, the shift fork shaft is connected to the horizontal bar through the shift fork nut, and the lower tip is connected to the top of the platform extension shaft.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The present invention can effectively obtain the history curves of the driving torque and friction resistance torque of the hinge assembly and the deployment angle, and check whether the setting of the driving torque and the friction resistance torque are within the designed range. It has a compact structure and complete functions, and can meet the testing requirements of various spacecraft hinges.

[0017] The thermal control assembly can heat the hinge assembly and keep the core components warm, so that the present invention can be used to test the hinge assembly in high and low temperature environments, greatly ensuring the on-orbit deployment performance of the spacecraft product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the hinge assembly of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the present invention;

[0021] Figure 4 It is a cross-sectional schematic diagram of the housing and its internal components when the present invention is electrically driven;

[0022] Figure 5 It is a cross-sectional schematic diagram of the box body and its internal components when the present invention is manually driven.

[0023] The numbers in the figure represent:

[0024] 1. Thermal control assembly; 101. Infrared cage; 102. Driver heating plate; 103. Motor heating plate; 104. Reducer heating plate; 105. Torque sensor heating plate; 2. Hinge assembly; 201. Upper positioning point; 202. Clamping plane; 203. Lower positioning point; 3. Positioning assembly; 301. Lifting platform; 302. Base; 303. Lower center; 304. Upper center; 305. Extension platform; 4. Clamping assembly; 401. Second optical axis; 4 02, second cross clamp; 403, plane clamping platform; 404, first cross clamp; 405, first optical axis; 406, support; 407, clamping iron; 5, box assembly; 501, second side plate; 502, front box plate; 503, rear box plate; 504, box bolt; 505, lower box plate; 506, first side plate; 507, third side plate; 508, support ear; 509, handle; 510, upper box plate; 6, drive assembly; 601, drive; 60 2. Motor; 603. Speed ​​reducer; 604. First bevel gear; 605. Second bevel gear; 606. Third bevel gear; 607. Hand wheel; 608. Moving bracket; 609. Fixing plate; 610. Sliding fastening bolt; 611. Sliding fastening nut; 612. Hand wheel shaft; 613. Hand wheel shaft end cover; 614. First end cover fixing bolt; 615. First gasket; 616. Hand wheel bearing; 617. Second gasket; 618. First bevel gear end cover; 619, second end cover fixing bolt; 620, second bevel gear end cover; 621, third end cover fixing bolt; 622, reducer connecting bolt; 7, test assembly; 701, torque sensor; 702, horizontal bar; 703, fork nut; 704, fork shaft; 705, coupling; 706, platform extension shaft bearing; 707, platform extension shaft end cover; 708, platform extension shaft; 709, third gasket; 710, fourth gasket; 711, fifth gasket. DETAILED DESCRIPTION

[0025] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0026] This embodiment provides a technical solution: a hinge high and low temperature torque test device, such as Figure 1 to Figure 5As shown, it includes a thermal control component 1, a hinge component 2, a positioning component 3, a clamping component 4, a box component 5, a drive component 6 and a test component 7. The device is arranged in a vacuum tank, the hinge component 2 is arranged on the top of the box component 5, the thermal control component 1 controls the high and low temperatures of the hinge component 2, and controls the temperature of the test component 7 and the drive component 6, the positioning component 3 is arranged on the top of the box component 5, the clamping component 4 is arranged on the top of the box component 5, the positioning component 3 positions the hinge component 2 so that the rotation center of the hinge component 2 is concentric with the outward extension axis of the test component 7, the clamping component 4 clamps the hinge component 2 in the test position, the drive component 6 is arranged inside the box component 5, the test component 7 is arranged on the box component 5, the drive component 6 is connected to the test component 7, and the The driving component 6 controls the test component 7 to move one end of the hinge component 2 to rotate, and measures the torque characteristics of the hinge component 2 during the rotation process. The hinge component 2 is placed on the top of the box component 5, and the box component 5 is covered with a multi-layer heat insulation component. The inner and outer sides of the surrounding frame walls are blackened to isolate the internal environment of the box component 5 from the upper layer. The hinge component 2 can be positioned by the positioning component 3, and the hinge component 2 can be clamped by the clamping component 4. The test component 7 can be driven by the driving component 6, and the hinge component 2 can be tested by the test component 7. By setting the device in a vacuum tank with a vacuum cold background, a high and low temperature environment can be achieved under the vacuum cold background through the thermal control component. The driving component 6 drives the test component 7, thereby driving the hinge component 2 to rotate, and then the hinge component 2 is measured and returned data.

[0027] See also Figure 1 and Figure 3 The thermal control component 1 includes an infrared cage 101, a driver heating plate 102, a motor heating plate 103, a reducer heating plate 104 and a torque sensor heating plate 105. The infrared cage 101 is covered on the outside of the hinge component 2 and located on the top of the box component 5 to heat the hinge component 2. The driver heating plate 102, the motor heating plate 103 and the reducer heating plate 104 heat the drive component 6. The torque sensor heating plate 105 heats the test component 7. Under high temperature conditions, the infrared cage 101 heats the hinge component 2. Under low temperature conditions, the infrared cage 101 is closed, and the external vacuum cold background cools the hinge component 2. The driver heating plate 102, the motor heating plate 103 and the reducer heating plate 104 heat the core components of the drive component 6, and the torque sensor heating plate 105 heats the core components of the test component 7.

[0028] See also Figure 1 to Figure 3The hinge assembly 2 includes a first rotating plate and a second rotating plate, the first rotating plate and the second rotating plate are rotatably connected via a rotating shaft, an upper positioning point 201 is arranged on the top of the rotating shaft, and a lower positioning point 203 is arranged on the bottom of the rotating shaft, and clamping planes 202 are arranged on both the first rotating plate and the second rotating plate, and the clamping planes 202 are arranged as an upper clamping plane and a lower clamping plane, the positioning assembly 3 positions the upper positioning point 201 and the lower positioning point 203, and the clamping assembly 4 fits and clamps the upper clamping plane and the lower clamping plane, the upper positioning point 201 and the lower positioning point 203 can be positioned by the positioning assembly 3, and then the hinge assembly 2 can be positioned, the clamping plane 202 can be clamped by the clamping assembly 4, and then the hinge assembly 2 can be clamped.

[0029] See also Figure 1 and Figure 3 The positioning assembly 3 includes a lifting platform 301, a base 302, a lower top 303, an upper top 304 and an extended platform 305. The base 302 is connected to the top of the box assembly 5, the lifting platform 301 is connected to the top of the base 302, the upper top 304 is connected to the lifting platform 301 through the extended platform 305, and the lower top 303 is connected to the top of the test assembly 7. The upper top 304 and the lower top 303 position the hinge assembly 2. Through the base 302, the lifting platform 301 and the box assembly 5 are positioned. The extended platform 305 slides on the lifting platform 301, thereby driving the upper top point 304 to slide up and down, thereby making the upper top point 304 collide with the upper positioning point 201, and thereby making the lower top point 303 collide with the lower positioning point 203. The upper positioning point 201 and the lower positioning point 203 can be positioned through the upper top point 304 and the lower top point 303. When measuring the hinge assembly 2, the upper top point 304 is adjusted through the lifting platform 301 to prevent it from contacting the upper positioning point 201, and the lower top point 303 rotates together with the rotating axis of the hinge assembly 2.

[0030] See also Figure 1 and Figure 3 The lifting platform 301 includes a slide rail, a sleeve, a rack, a gear and a drive motor. The slide rail is connected to the base 302, the rack is connected to the slide rail, the sleeve is slidably connected to the slide rail, the gear is rotatably connected to the inner side of the sleeve and meshes with the rack, the drive motor is connected to the sleeve, and the output shaft of the drive motor is connected to the rotating shaft of the gear, the extension platform 305 is connected to the sleeve, and the drive motor drives the gear to rotate. Under the action of the rack, the sleeve slides on the slide rail, thereby driving the extension platform 305 to slide.

[0031] See also Figure 1 and Figure 3The clamping assembly 4 includes a second optical axis 401, a second cross clamp 402, a plane clamping platform 403, a first cross clamp 404, a first optical axis 405, a support 406 and a clamping iron 407, wherein two supports 406 and two clamping irons 407 are provided, and the two supports 406 are respectively connected to the top of the box assembly 5 through two clamping irons 407, the first optical axis 405 is connected between the two supports 406, the first cross clamp 404 is slidably connected to the outer side of the first optical axis 405, the second optical axis 401 is connected to the top of the first cross clamp 404, and the second cross clamp 40 2 is slidably connected to the outside of the second optical axis 401, the plane clamping platform 403 is connected to the second cross clamp 402, the plane clamping platform 403 clamps the clamping plane 202, and the support 406 can be fixed to the top of the box assembly 5 through the clamping iron 407, and the first cross clamp 404 slides on the outside of the first optical axis 405, thereby driving the second optical axis 401 to move, thereby driving the second cross clamp 402 to move, thereby driving the plane clamping platform 403 to move forward and backward, and the second cross clamp 402 slides on the second optical axis 401, thereby driving the plane clamping platform 403 to move up and down.

[0032] See also Figure 1 and Figure 3 The planar clamping platform 403 includes a U-shaped plate, a threaded rod, a rotating wheel, and a moving block. The moving block is slidably connected to the inner side of the U-shaped plate, the threaded rod is threadedly connected to the top of the U-shaped plate, the rotating wheel is connected to the top of the threaded rod, and the moving block is rotatably connected to the bottom of the threaded rod. The U-shaped plate is connected to the second cross clamp 402. By rotating the rotating wheel, the threaded rod is driven to rotate, and the moving block slides on the inner side of the U-shaped plate, so that the clamping plane 202 can be clamped and fixed.

[0033] See also Figure 1 , Figure 3 , Figure 4 and Figure 5The box assembly 5 includes a front box plate 502, a rear box plate 503, a lower box plate 505, an upper box plate 510, a first side plate 506, a second side plate 501, a third side plate 507, box bolts 504, ears 508 and a handle 509. The front box plate 502, the rear box plate 503, the lower box plate 505, the upper box plate 510, the first side plate 506, the second side plate 501 and the third side plate 507 are all screwed together by box bolts 504. An observation hole is provided on the front box plate 502, a line hole is provided on the rear box plate 503, and two symmetrically distributed planar grooves are provided on the upper box plate 510. The ears 508 are provided in two groups, and each group has two ears. The two groups of ears 508 are respectively connected to The first side panel 506 is connected to the second side panel 501, and two handles 509 are provided. The two handles 509 are respectively connected to the first side panel 506 and the second side panel 501. The front panel 502, the rear panel 503, the lower panel 505, the upper panel 510, the first side panel 506, the second side panel 501 and the third side panel 507 can be screwed together and assembled through the box bolts 504 to form a box. The box can be fixed through the support ears 508. The box can be pulled through the handles 509. The inside of the box can be observed through the observation hole. The inside and outside of the box can be wired through the line holes, so that the drive component 6 inside the box can be used normally.

[0034] See also Figure 1 , Figure 3 , Figure 4 and Figure 5The driving assembly 6 includes a driver 601, a motor 602, a reducer 603, a first bevel gear 604, a second bevel gear 605, a third bevel gear 606, a handwheel 607, a movable bracket 608, a fixed plate 609, a sliding fastening bolt 610, a sliding fastening nut 611, a handwheel shaft 612, a handwheel shaft end cover 613, a first end cover fixing bolt 614, a first gasket 615, a handwheel bearing 616, a second gasket 617, a first bevel gear end cover 618, a second end cover fixing bolt 619, a second bevel gear end cover 620, a third end cover fixing bolt 621 and a reducer connecting bolt 622. The movable bracket 608 is connected to the upper box plate through the fixed plate 609, the sliding fastening bolt 610 and the sliding fastening nut 611 510, the output shaft of the driver 601 is connected to the input shaft of the motor 602, the output shaft of the motor 602 is connected to the input shaft of the reducer 603, the reducer 603 is connected to the movable bracket 608 through the reducer connecting bolt 622, the output shaft of the reducer 603 is connected to the first bevel gear 604 through the second bevel gear end cover 620 and the third end cover fixing bolt 621, the handwheel 607 is connected to one end of the handwheel shaft 612, the handwheel bearing 616 is provided with two, the handwheel shaft 612 is connected to the movable bracket 608 through two handwheel bearings 616, the other end of the handwheel shaft 612 is connected to the first bevel gear 604 through the first bevel gear end cover 618 and the second end cover fixing bolt 619, the second The washer 617 is sleeved on the outside of the handwheel shaft 612 and is located between the first bevel gear 604 and the handwheel bearing 616. The handwheel shaft end cover 613 is sleeved on the outside of the handwheel shaft 612. The handwheel shaft end cover 613 is connected to the movable bracket 608 through the first end cover fixing bolt 614. The outside of the handwheel shaft 612 is sleeved with a first washer 615 between the two handwheel bearings 616. The second bevel gear 605 is connected to the bottom of the test component 7. The first bevel gear 604 and the third bevel gear 606 are both meshed with the second bevel gear 605. Loosen the sliding fastening nut 611, so that the sliding fastening bolt 610 slides inside the planar groove on the upper box plate 510, thereby driving the fixed plate 609 to slide, and then driving the movable bracket 608 to move. The first bevel gear 604 and the third bevel gear 606 are driven to move. When the first bevel gear 604 is meshed with the second bevel gear 605, the driver 601 can drive the motor 602 to rotate, thereby driving the reducer 603 to rotate, thereby driving the first bevel gear 604 to rotate, thereby driving the second bevel gear 605 to rotate, thereby driving the test assembly 7. When the third bevel gear 606 is meshed with the second bevel gear 605, the hand wheel 607 is shaken. With the cooperation of the hand wheel bearing 616, the hand wheel shaft 612 is rotated on the movable bracket 608, thereby driving the third bevel gear 606 to rotate, thereby driving the second bevel gear 605 to rotate, thereby driving the test assembly 7. The test assembly 7 can be electrically driven or manually driven.The hand wheel bearing 616 adopts an angular contact ball bearing that is resistant to high and low temperatures, and the first bevel gear 604, the second bevel gear 605 and the third bevel gear 606 adopt sulfur dioxide coating to achieve high temperature resistance.

[0035] See also Figure 1 , Figure 3 and Figure 5 The test assembly 7 includes a torque sensor 701, a horizontal bar 702, a fork nut 703, a fork shaft 704, a coupling 705, a platform extension shaft bearing 706, a platform extension shaft end cover 707, a platform extension shaft 708, a third gasket 709, a fourth gasket 710 and a fifth gasket 711. The bottom of the torque sensor 701 is connected to the second bevel gear 605, and the top of the torque sensor 701 is connected to the platform extension shaft 708 through the coupling 705. The fifth gasket 711 is sleeved on the torque sensor 701, and the fourth gasket 710 is sleeved on the outer side of the platform extension shaft 708. Two platform extension shaft bearings 706 are provided, and the platform extension shaft 708 is connected to the upper box plate 510 through two platform extension shaft bearings 706. The outer side of the platform extension shaft 708 is located at two platform extension shafts. A third gasket 709 is also sleeved between the extension shaft bearings 706, and a platform extension shaft end cover 707 is also sleeved on the top of the platform extension shaft 708. The platform extension shaft end cover 707 is connected to the upper box plate 510, the cross bar 702 is connected to the platform extension shaft 708, the fork shaft 704 is connected to the cross bar 702 through the fork nut 703, and the lower tip 303 is connected to the top of the platform extension shaft 708. When the second bevel gear 605 rotates, it can drive the torque sensor 701 to rotate, and then drive the coupling 705 to rotate. With the cooperation of the platform extension shaft bearing 706, it can drive the platform extension shaft 708 to rotate on the upper box plate 510, and then drive the cross bar 702 to rotate, and then drive the fork shaft 704 to rotate, and then drive the hinge assembly 2 to rotate, and then the rotation performance of the hinge assembly 2 can be measured.

[0036] Working principle: The upper top 304 and the lower top 303 locate the rotation axis of the hinge assembly 2 through the upper positioning point 201 and the lower positioning point 203. After the position is determined, it is clamped and adjusted on the upper box plate 510 through the plane clamping table 403. The device is placed under an external vacuum cold background. The driver heating plate 102, the motor heating plate 103, the reducer heating plate 104, and the torque sensor heating plate 105 heat and keep the core components warm. Under high temperature conditions, the infrared cage 101 heats the hinge assembly 2. Under low temperature conditions, the infrared cage 101 is closed and the external vacuum cold background is turned off. The hinge assembly 2 is cooled down, and the driving assembly 6 drives the fork shaft 704 to rotate through transmission, thereby driving the hinge assembly 2 to rotate. The torque sensor 701 on the transmission path measures the rotation performance of the hinge assembly 2 and returns data. At the same time, when the electric drive fails in a harsh high or low temperature environment, the sliding fastening bolt 610 and the sliding fastening nut 611 can be loosened to move the movable bracket 608 to convert the electric drive into a handwheel drive, so that the hinge assembly 2 can be rotated by turning the handwheel 607, so that the torque sensor 701 continues to measure the rotation performance of the hinge assembly 2.

[0037] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. A hinge high and low temperature torque test device, characterized in that: It includes a thermal control component, a hinge component, a positioning component, a clamping component, a box component, a driving component and a testing component. The device is arranged in a vacuum tank. The hinge component is arranged on the top of the box component. The thermal control component controls the high and low temperatures of the hinge component and performs temperature control on the testing component and the driving component. The positioning component is arranged on the top of the box component. The clamping component is arranged on the top of the box component. The positioning component positions the hinge component so that the rotation center of the hinge component is concentric with the outward extension axis of the testing component. The clamping component clamps and fixes the hinge component in a testing position. The driving component is arranged inside the box component. The testing component is arranged on the box component. The driving component is connected to the testing component. The driving component controls the testing component to rotate one end of the hinge component and measures the torque characteristics during the rotation of the hinge component. The thermal control component includes an infrared cage, a driver heating sheet, a motor heating sheet, a reducer heating sheet and a torque sensor heating sheet. The infrared cage is arranged outside the hinge assembly and on the top of the box assembly to heat the hinge assembly. The driver heating sheet, the motor heating sheet and the reducer heating sheet heat the drive assembly. The torque sensor heating sheet heats the test assembly. The hinge assembly includes a first rotating plate and a second rotating plate, the first rotating plate and the second rotating plate are rotatably connected via a rotating shaft, an upper positioning point is arranged at the top of the rotating shaft, a lower positioning point is arranged at the bottom of the rotating shaft, a clamping plane is arranged on both the first rotating plate and the second rotating plate, the clamping plane is arranged as an upper clamping plane and a lower clamping plane, the positioning assembly positions the upper positioning point and the lower positioning point, and the clamping assembly fits and clamps the upper clamping plane and the lower clamping plane; The positioning assembly includes a lifting platform, a base, a lower top, an upper top and an outward-extending platform. The base is connected to the top of the box assembly, the lifting platform is connected to the top of the base, the upper top is connected to the lifting platform through the outward-extending platform, the lower top is connected to the top of the test assembly, and the upper top and the lower top are used to position the hinge assembly. The clamping assembly includes a second optical axis, a second cross clamp, a plane clamping platform, a first cross clamp, a first optical axis, a support and a clamping iron, two of the support and the clamping iron are provided, the two supports are respectively connected to the top of the box assembly through two clamping irons, the first optical axis is connected between the two supports, the first cross clamp is slidably connected to the outer side of the first optical axis, the second optical axis is connected to the top of the first cross clamp, the second cross clamp is slidably connected to the outer side of the second optical axis, the plane clamping platform is connected to the second cross clamp, and the plane clamping platform clamps the clamping plane; The test assembly includes a torque sensor, a horizontal bar, a shift fork nut, a shift fork shaft, a coupling, a platform extension shaft bearing, a platform extension shaft end cover, a platform extension shaft, a third gasket, a fourth gasket and a fifth gasket.

2. A hinge high and low temperature torque test device according to claim 1, characterized in that: The lifting platform includes a slide rail, a sleeve, a rack, a gear and a drive motor. The slide rail is connected to the base, the rack is connected to the slide rail, the sleeve is slidably connected to the slide rail, the gear is rotatably connected to the inner side of the sleeve and meshes with the rack, the drive motor is connected to the sleeve, and the output shaft of the drive motor is connected to the rotating shaft of the gear, and the extended platform is connected to the sleeve.

3. The hinge high and low temperature torque test device according to claim 1, characterized in that: The planar clamping platform includes a U-shaped plate, a threaded rod, a rotating wheel, and a moving block. The moving block is slidably connected to the inner side of the U-shaped plate, the threaded rod is threadedly connected to the top of the U-shaped plate, the rotating wheel is connected to the top of the threaded rod, the moving block is rotatably connected to the bottom of the threaded rod, and the U-shaped plate is connected to the second cross clamp.

4. The hinge high and low temperature torque test device according to claim 1, characterized in that: The box assembly includes a front box plate, a rear box plate, a lower box plate, an upper box plate, a first side plate, a second side plate, a third side plate, box bolts, support ears and handles. The front box plate, the rear box plate, the lower box plate, the upper box plate, the first side plate, the second side plate and the third side plate are all assembled by screwing with box bolts. The front box plate is provided with an observation hole, the rear box plate is provided with a circuit hole, and the upper box plate is provided with two symmetrically distributed planar grooves. The support ears are provided in two groups, with two in each group. The two groups of support ears are respectively connected to the first side plate and the second side plate. There are two handles, and the two handles are respectively connected to the first side plate and the second side plate.

5. A hinge high and low temperature torque test device according to claim 4, characterized in that: The driving assembly includes a driver, a motor, a reducer, a first bevel gear, a second bevel gear, a third bevel gear, a handwheel, a movable bracket, a fixed plate, a sliding fastening bolt, a sliding fastening nut, a handwheel shaft, a handwheel shaft end cover, a first end cover fixing bolt, a first gasket, a handwheel bearing, a second gasket, a first bevel gear end cover, a second end cover fixing bolt, a second bevel gear end cover, a third end cover fixing bolt and a reducer connecting bolt. The movable bracket is connected to the planar groove of the upper box plate through the fixed plate, the sliding fastening bolt and the sliding fastening nut. The driver output shaft is connected to the motor input shaft, the motor output shaft is connected to the reducer input shaft, the reducer is connected to the movable bracket through the reducer connecting bolt, and the reducer output shaft is connected to the reducer connecting bolt. The gear wheel is connected to the movable bracket through the second bevel gear end cover and the third end cover fixing bolts, the handwheel is connected to one end of the handwheel shaft, the handwheel bearings are provided with two, the handwheel shaft is connected to the movable bracket through two handwheel bearings, the other end of the handwheel shaft is connected to the first bevel gear through the first bevel gear end cover and the second end cover fixing bolts, the second gasket is sleeved on the outside of the handwheel shaft and is located between the first bevel gear and the handwheel bearing, the handwheel shaft end cover is sleeved on the outside of the handwheel shaft, the handwheel shaft end cover is connected to the movable bracket through the first end cover fixing bolts, the outside of the handwheel shaft is sleeved with a first gasket between the two handwheel bearings, the second bevel gear is connected to the bottom of the test assembly, and the first bevel gear and the third bevel gear are both meshed with the second bevel gear.

6. A hinge high and low temperature torque test device according to claim 5, characterized in that: The bottom of the torque sensor is connected to the second bevel gear, and the top of the torque sensor is connected to the platform extension shaft through a coupling. A fifth gasket is sleeved on the torque sensor, and a fourth gasket is sleeved on the outside of the platform extension shaft. Two platform extension shaft bearings are provided, and the platform extension shaft is connected to the upper box plate through two platform extension shaft bearings. A third gasket is sleeved on the outside of the platform extension shaft and located between the two platform extension shaft bearings. A platform extension shaft end cover is also sleeved on the top of the platform extension shaft, and the platform extension shaft end cover is connected to the upper box plate, the cross bar is connected to the platform extension shaft, the fork shaft is connected to the cross bar through the fork nut, and the lower tip is connected to the top of the platform extension shaft.

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