A stable high and low temperature cycle test bench for electric actuator performance testing

Abstract

The present invention discloses a stable high and low temperature cycle test bench for electric actuator performance detection, which relates to the technical field of performance testing devices, including a test bench body, a control unit installed on the top of the test bench body, a high and low temperature box installed on the top of the test bench body, a movable concave plate installed on the output end of the hydraulic cylinder 2, a through slot 2 running through the top of the heat insulation box, a movable heat insulation mechanism provided on the output end of the electric telescopic unit 4, electric telescopic units 5 symmetrically installed on the inner walls on both sides of the heat insulation box, and a heat insulation fixing plate installed on the input end of the pressure sensor. The present invention provides a heat insulation box and a heat insulation mechanism, and before the heat insulation box moves forward, the movable heat insulation rod blocks the through slot 2, and then the part of the heat insulation box with the through slot 1 moves forward out of the high and low temperature box, so that the electric actuator in the heat insulation box can reduce the loss of hot air inside the high and low temperature box when entering or leaving the high and low temperature box.

Description

Technical Field

[0001] The invention relates to the technical field of performance testing devices, in particular to a high and low temperature cycle test bench for stable performance testing of electric actuators. Background Art

[0002] Rotating electric actuators play an important role in controlling valves and other fields. After production, electric actuators need to be tested for performance. The speed, torque, power and efficiency of the electric actuators are tested through a cycle test bench. At the same time, the electric actuators are usually placed in a high and low temperature environment for high temperature and cold resistance performance tests. Every time the electric actuator is placed in a heating box, it will cause a large amount of heat loss, wasting energy.

[0003] The defects of the existing performance testing device are:

[0004] 1. The prior art JPH08201253A discloses a high-temperature testing device. This technology easily causes a large amount of heat to be lost at the opening of the heating box when the tested product is placed in or taken out of the heating box, wasting energy. Therefore, a high-low temperature cycle test bench for stable electric actuator performance testing with the ability to reduce heat loss at the opening of the heating box is needed to solve this problem.

[0005] 2. The prior art JP2013217693A discloses a high-temperature testing device, which does not have a structure to reduce the damage to electronic devices inside the heating box caused by high temperature. It is also unable to discharge the hot air around the heated electronic devices each time the heating box is opened. When the heat continues to accumulate, it will cause damage to the electronic devices. Therefore, a stable high-low temperature cycle test bench for electric actuator performance testing that can reduce the damage to electronic devices inside the heating box caused by high temperature is needed to solve this problem.

[0006] 3. The prior art JPH112655A discloses a semiconductor high-temperature testing device. This technology does not have a structure for shielding and cooling the opening of the heating box door. When the electric actuator is tested in a high-temperature environment, it is necessary to connect the electric actuator inside the heating box with an external dynamometer through a transmission shaft. The transmission needs to pass through the heating box door to connect with the external dynamometer. During the heating test, the hot air inside the heating box is easily discharged from the opening of the heating box door. Therefore, a stable high and low temperature cycle test bench for electric actuator performance testing that can reduce the heat discharged from the opening of the heating box door is needed to solve this problem.

[0007] 4. The prior art CN101281235B discloses a high-temperature and high-voltage motor testing device. This technology does not have a structure for moving the heated product to be tested from the test bench. Workers are easily burned when manually moving the high-temperature product. Therefore, a stable high- and low-temperature cycle test bench for electric actuator performance testing that can move the product to be tested from the inside of the heating box is needed to solve this problem. Summary of the invention

[0008] One purpose of the present application is to provide a stable high and low temperature cycle test bench for electric actuator performance testing, which can solve the technical problems raised in the prior art.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stable high and low temperature cycle test bench for electric actuator performance detection, comprising a test bench body, a high and low temperature box and a movable concave plate, a control unit is installed on the top of the test bench body, and a high and low temperature box is installed on the top of the test bench body;

[0010] A plate body 1 is installed at the bottom of the test bench body, a hydraulic cylinder 2 is symmetrically installed on the top of the plate body 1, and the hydraulic cylinder 2 is electrically connected to the control unit by signal, a movable concave plate is installed at the output end of the hydraulic cylinder 2, a heat insulation box is installed on the top of the movable concave plate, a through groove 2 is opened through the top of the heat insulation box, a plurality of electric telescopic units 4 are installed on the top inner wall of the heat insulation box, and the electric telescopic units 4 are electrically connected to the control unit by signal, a movable heat insulation mechanism is provided at the output end of the electric telescopic unit 4, electric telescopic units 5 are symmetrically installed on the inner walls on both sides of the heat insulation box, and the electric telescopic units 5 are electrically connected to the control unit by signal, a pressure sensor is installed at the output end of the electric telescopic unit 5, and the pressure sensor is electrically connected to the control unit by signal, and a heat insulation fixing plate is installed at the input end of the pressure sensor.

[0011] Preferably, a guide frame is symmetrically installed on the front of the high and low temperature box, a refrigerator is installed on the top of the high and low temperature box, the refrigerator is electrically connected to the control unit, a plurality of solenoid valves are installed at the output end of the refrigerator, the solenoid valves are electrically connected to the control unit, a refrigeration pipe is installed at the output end of the solenoid valve, and the output end of the refrigeration pipe is connected to the input end of the high and low temperature box, a heating rod is installed on the inner wall of the back side of the high and low temperature box, and the heating rod is electrically connected to the control unit, a temperature detection unit is installed on the inner wall of the top of the high and low temperature box, and the temperature detection unit is electrically connected to the control unit.

[0012] Preferably, hydraulic cylinders are symmetrically installed on both sides of the high and low temperature box, and hydraulic cylinders are connected to the control unit by electrical signals, a connecting plate is installed at the output end of the hydraulic cylinder, an insulating door is installed at the bottom of the connecting plate, and the insulating door is located on the inner side of the guide frame, and a through groove is opened through the front of the insulating door.

[0013] Preferably, an electric telescopic unit 1 is installed on the front of the insulation door, and the electric telescopic unit 1 is electrically connected to the control unit by signals. A movable insulation board 1 is installed on the output end of the electric telescopic unit 1, and a laser rangefinder 1 is installed on the front of the movable insulation board 1, and the laser rangefinder 1 is electrically connected to the control unit by signals.

[0014] Preferably, an electric telescopic unit 2 is installed on the front of the thermal insulation door, and the electric telescopic unit 2 is electrically connected to the control unit by signals, an active thermal insulation frame is installed on the output end of the electric telescopic unit 2, an electric telescopic unit 3 is installed on the front of the active thermal insulation frame, and the electric telescopic unit 3 is electrically connected to the control unit by signals, a connecting block 1 is installed on the output end of the electric telescopic unit 3, an active thermal insulation board 2 is installed on the back of the connecting block 1, and the active thermal insulation board 2 is located on the inner side of the active thermal insulation frame, a laser rangefinder 2 is installed on the top of the connecting block 1, and the laser rangefinder 2 is electrically connected to the control unit by signals.

[0015] Preferably, the heat insulation mechanism comprises a movable heat insulation rod and a movable heat insulation board three, one side of the movable heat insulation rod is connected to the output end of the electric telescopic unit four, and the bottom of the movable heat insulation rod is installed with a movable heat insulation board three.

[0016] Preferably, hydraulic cylinder three is symmetrically installed on the top of the movable concave plate, hydraulic cylinder three is electrically connected to the control unit, a connecting block two is installed at the output end of the hydraulic cylinder three, a movable plate two is installed at the bottom of the connecting block two, the movable plate two is located on the inner side of the movable concave plate, a dynamometer is installed on the top of the movable plate two, and the dynamometer is electrically connected to the control unit.

[0017] Preferably, a plate body 2 is installed on one side of the test bench body, a hydraulic cylinder 4 is installed on one side of the plate body 2, the hydraulic cylinder 4 is electrically connected to the control unit, a stroke plate is installed on the output end of the hydraulic cylinder 4, a hydraulic cylinder 5 is installed on the top of the stroke plate, the hydraulic cylinder 5 is electrically connected to the control unit, a carrying frame is installed on the output end of the hydraulic cylinder 5, a hydraulic cylinder 6 is symmetrically installed on the outside of the carrying frame, and the hydraulic cylinder 6 is electrically connected to the control unit, and a clamp is installed on the output end of the hydraulic cylinder 6.

[0018] Preferably, the method of using the stable high and low temperature cycle test bench for electric actuator performance testing is as follows:

[0019] S1. Place the actuator inside the heat-insulating box, and then connect the output end of the actuator to the input end of the dynamometer through a transmission shaft. Then move the heat-insulating box back into the high and low temperature box, and then test the actuator by heating or cooling.

[0020] S2. After the test is completed, the movable heat-insulating rod moves to the left to block the second through slot, then the movable heat-insulating board 1 moves upward, the movable heat-insulating frame and the movable heat-insulating board 2 move to the right, then the insulation door moves upward, and the insulation box moves forward so that the part with the second through slot is moved out of the high and low temperature box;

[0021] S3, then the heat insulation fixed plate moves to both sides, the movable plate 2 drives the actuator to move forward, and then the clamping plate clamps the actuator and moves it away.

[0022] Preferably, the step S2 further includes the following steps:

[0023] S21. After the insulation door is moved upward, the movable insulation board is moved downward, and the movable insulation frame and the movable insulation board 2 are moved to the left to block the through groove 1.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention provides a heat insulation box and a heat insulation mechanism. Before the heat insulation box moves forward, a movable heat insulation rod blocks the second through slot, and then the portion of the heat insulation box with the first through slot moves forward out of the high and low temperature box. Therefore, when the electric actuator in the heat insulation box enters or leaves the high and low temperature box, the loss of hot air inside the high and low temperature box can be reduced, thereby saving energy.

[0026] 2. The present invention can reduce the flow of hot air to both sides of the insulation fixing plate when the insulation box enters the high and low temperature box for heating by providing the through slot two, the electric telescopic unit four, the movable insulation rod and the insulation fixing plate, thereby reducing the heat damage to the electric telescopic unit four and the pressure sensor.

[0027] 3. The present invention can enable the transmission shaft between the tested electric actuator and the dynamometer to pass through the insulation door by providing a through slot 1, thereby facilitating the power testing between the electric actuator and the dynamometer through the transmission shaft. At the same time, the provision of a movable insulation board 1, a movable insulation frame and a movable insulation board 2 can reduce the loss of hot air inside the high and low temperature box through the through slot 1, thereby further saving electric energy.

[0028] 4. The present invention can realize the transportation of the tested electric actuator by arranging the movable concave plate, the movable plate 2, the hydraulic cylinder 4, the hydraulic cylinder 5, the hydraulic cylinder 6 and the clamping plate, thereby reducing the risk of being burned during manual transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A perspective view of the present invention;

[0030] Figure 2 It is a side sectional view of the high and low temperature box of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the high and low temperature box of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the heat insulation door of the present invention;

[0033] Figure 5It is a schematic diagram of the structure of the movable heat insulation frame of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the movable concave plate of the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the heat insulation box of the present invention;

[0036] Figure 8 It is a structural schematic diagram of the movable plate 2 of the present invention;

[0037] Fig. 9 It is a schematic diagram of the second structure of the plate body of the present invention;

[0038] Fig.10 The figure is a flow chart of the method for using the present invention.

[0039] In the figure: 1. Test bench body; 2. Control unit; 3. High and low temperature box; 4. Guide frame; 5. Hydraulic cylinder 1; 6. Connecting plate; 7. Insulated door; 8. Through slot 1; 9. Electric telescopic unit 1; 10. Active thermal insulation board 1; 11. Laser rangefinder 1; 12. Electric telescopic unit 2; 13. Active thermal insulation frame; 14. Electric telescopic unit 3; 15. Connecting block 1; 16. Active thermal insulation board 2; 17. Laser rangefinder 2; 18. Refrigerator; 19. Solenoid valve; 20. Refrigeration pipe; 21. Heating rod; 22. Plate 1; 2 3. Hydraulic cylinder two; 24. Movable concave plate; 25. Insulation box; 26. Through slot two; 27. Electric telescopic unit four; 28. Movable insulation rod; 29. ​​Movable insulation plate three; 30. Electric telescopic unit five; 31. Pressure sensor; 32. Insulation fixing plate; 33. Hydraulic cylinder three; 34. Connecting block two; 35. Movable plate two; 36. Dynamometer; 37. Plate body two; 38. Hydraulic cylinder four; 39. Stroke plate; 40. Hydraulic cylinder five; 41. Carrying frame; 42. Hydraulic cylinder six; 43. Clamp; 44. Temperature detection unit. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] See also Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the present invention: a stable high and low temperature cycle test bench for electric actuator performance detection;

[0044] The invention comprises a test bench body 1 and a high and low temperature box 3, a control unit 2 is installed on the top of the test bench body 1, a high and low temperature box 3 is installed on the top of the test bench body 1, a guide frame 4 is symmetrically installed on the front of the high and low temperature box 3, a refrigerator 18 is installed on the top of the high and low temperature box 3, the refrigerator 18 is electrically connected to the control unit 2, a plurality of solenoid valves 19 are installed on the output end of the refrigerator 18, the solenoid valve 19 is electrically connected to the control unit 2, a refrigeration pipe 20 is installed on the output end of the solenoid valve 19, and the output end of the refrigeration pipe 20 is connected to the input end of the high and low temperature box 3, a heating rod 21 is installed on the inner wall of the back of the high and low temperature box 3, and the heating rod 21 is electrically connected to the control unit 2, a temperature detection unit 44 is installed on the inner wall of the top of the high and low temperature box 3, and the temperature detection unit 44 is electrically connected to the control unit 2, the test bench body 1 can provide an installation position for other components of the device, so that other components of the device have a position to be installed, the control unit 2 is a controller, which can receive The signals of the laser rangefinder 11, the laser rangefinder 2 17, the pressure sensor 31 and the temperature detection unit 44 can control the hydraulic cylinder 1 5, the electric telescopic unit 1 9, the electric telescopic unit 2 12, the electric telescopic unit 3 14, the refrigerator 18, the solenoid valve 19, the heating rod 21, the hydraulic cylinder 2 23, the electric telescopic unit 4 27, the electric telescopic unit 5 30, the hydraulic cylinder 3 33, the dynamometer 36, the hydraulic cylinder 4 38, the hydraulic cylinder 5 40 and the hydraulic cylinder 6 42 at the same time. The high and low temperature box 3 can provide different test environments for the electric actuator. The guide frame 4 can provide guidance for the insulation door 7. The refrigerator 18 can cool and cool the inside of the high and low temperature box 3. The solenoid valve 19 plays a role in controlling the through state between the refrigerator 18 and the refrigeration pipe 20. The heating rod 21 can convert electrical energy into thermal energy, thereby heating the inside of the high and low temperature box 3. The temperature detection unit 44 is a temperature sensor that can detect the temperature inside the high and low temperature box 3.

[0045] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 , an embodiment provided by the present invention: a stable high and low temperature cycle test bench for electric actuator performance detection;

[0046] The test bench comprises a plate body 22 and a heat insulation mechanism. The plate body 22 is installed at the bottom of the test bench body 1. The top of the plate body 22 is symmetrically installed with a hydraulic cylinder 23, and the hydraulic cylinder 23 is electrically connected to the control unit 2. The output end of the hydraulic cylinder 23 is installed with a movable concave plate 24, and the top of the movable concave plate 24 is installed with a heat insulation box 25. The top of the heat insulation box 25 is penetrated by a through groove 26. A plurality of electric telescopic units 27 are installed on the inner wall of the top of the heat insulation box 25, and the electric telescopic units 27 are electrically connected to the control unit 2. The plate body 22 can provide an installation position for the hydraulic cylinder 23, and the hydraulic cylinder 23 can convert hydraulic energy into kinetic energy, thereby driving the movable concave plate 24. The movable concave plate 24 can drive the heat insulation box 25 to move forward and backward by moving forward and backward. The heat insulation box 25 can reduce the heat loss inside the high and low temperature box 3 when moving forward, and reduce the waste of heat. The through groove 26 can provide a transmission path for the hot air or cold air inside the high and low temperature box 3 to enter the heat insulation box 25. The electric telescopic unit four 27 is an electric telescopic rod, which can convert electrical energy into kinetic energy, thereby driving the movable heat insulation rod 28 to move left and right. The output end of the electric telescopic unit four 27 is provided with a movable heat insulation mechanism, which includes a movable heat insulation rod 28 and a movable heat insulation board three 29. One side of the movable heat insulation rod 28 is connected to the input end of the electric telescopic unit four 27. The output end is connected, a movable heat insulation plate three 29 is installed at the bottom of the movable heat insulation rod 28, and the inner walls of both sides of the heat insulation box 25 are symmetrically installed with electric telescopic units five 30, and the electric telescopic units five 30 are connected to the control unit 2 by electrical signals, and a pressure sensor 31 is installed at the output end of the electric telescopic unit five 30, and the pressure sensor 31 is connected to the control unit 2 by electrical signals, and a heat insulation fixing plate 32 is installed at the input end of the pressure sensor 31. The movable heat insulation rod 28 can block the through slot two 26 by moving to the left, thereby preventing the hot air or cold air inside the high and low temperature box 3 from entering the heat insulation box 25, and the movable heat insulation plate three 29 can prevent the hot air entering the heat insulation box 25 from entering the right The right side space of the heat insulation fixing plate 32 on the side can avoid the influence of high temperature on the electric telescopic unit 5 30 on the right side. The electric telescopic unit 5 30 is an electric telescopic rod, which can convert electrical energy into kinetic energy, thereby driving the pressure sensor 31 and the heat insulation fixing plate 32 to move left and right. The pressure sensor 31 can detect the pressure from the heat insulation fixing plate 32, and then the movable heat insulation fixing plate 32 exerts pressure on the inner electric actuator. The heat insulation fixing plate 32 plays the role of fixing the electric actuator and also plays the role of heat insulation, reducing the heat transfer from the inner side of the heat insulation fixing plate 32 to the two sides of the heat insulation height plate 32, thereby reducing the influence of heat on the electric telescopic unit 5 30 and the pressure sensor 31.

[0047] See also Figure 1 , Figure 3 and Figure 4 , an embodiment provided by the present invention: a stable high and low temperature cycle test bench for electric actuator performance detection;

[0048] It includes a hydraulic cylinder 5, which is symmetrically installed on both sides of the high and low temperature box 3, and the hydraulic cylinder 5 is electrically connected to the control unit 2. A connecting plate 6 is installed at the output end of the hydraulic cylinder 5, and an insulating door 7 is installed at the bottom of the connecting plate 6. The insulating door 7 is located on the inner side of the guide frame 4, and a through groove 8 is opened through the front of the insulating door 7. The hydraulic cylinder 5 can convert hydraulic energy into kinetic energy, thereby driving the connecting plate 6 to move up and down. The connecting plate 6 can drive the insulating door 7 to move up and down by moving up and down, which plays a role in closing the front opening of the high and low temperature box 3 and reducing the loss of heat inside the high and low temperature box 3. The through groove 8 can provide a passing path for the transmission shaft between the electric actuator and the dynamometer 36.

[0049] See also Figure 1 , Figure 3 and Figure 4 , an embodiment provided by the present invention: a stable high and low temperature cycle test bench for electric actuator performance detection;

[0050] It includes an electric telescopic unit 9, which is installed on the front of the heat insulation door 7. The electric telescopic unit 9 is electrically connected to the control unit 2. A movable heat insulation board 10 is installed on the output end of the electric telescopic unit 9. A laser rangefinder 11 is installed on the front of the movable heat insulation board 10, and the laser rangefinder 11 is electrically connected to the control unit 2. The electric telescopic unit 9 is an electric telescopic rod, which can convert electrical energy into kinetic energy, thereby driving the movable heat insulation board 10 to move up and down. The movable heat insulation board 10 can block the upper part of the through slot 8 by moving downward, thereby reducing the heat loss inside the high and low temperature box 3. The laser rangefinder 11 can measure the distance between itself and the transmission shaft between the electric actuator below and the dynamometer 36.

[0051] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 , an embodiment provided by the present invention: a stable high and low temperature cycle test bench for electric actuator performance detection;

[0052] The electric telescopic unit 12 includes an electric telescopic unit 2 12 and an electric telescopic unit 3 14. The electric telescopic unit 2 12 is installed on the front of the heat insulation door 7. The electric telescopic unit 2 12 is connected to the control unit 2 by electrical signals. The output end of the electric telescopic unit 12 is installed with a movable heat insulation frame 13. The electric telescopic unit 3 14 is installed on the front of the movable heat insulation frame 13. The electric telescopic unit 3 14 is connected to the control unit 2 by electrical signals. The output end of the electric telescopic unit 3 14 is installed with a connecting block 15. The back of the connecting block 15 is installed with an active heat insulation board 2 16, and the active heat insulation board 2 16 is located on the inner side of the active heat insulation frame 13. The top of the connecting block 15 is installed with a laser rangefinder 2 17. The laser rangefinder 2 17 The electric telescopic unit 2 12 is connected to the control unit 2 by electrical signals. It is an electric telescopic rod that can convert electrical energy into kinetic energy, thereby driving the movable insulation frame 13 to move left and right. The movable insulation frame 13 can block the lower part of the through slot 1 8 by moving to the left, thereby reducing the heat loss inside the high and low temperature box 3. The electric telescopic unit 3 14 is an electric telescopic rod that can convert electrical energy into kinetic energy, thereby driving the connecting block 15 to move up and down. The connecting block 15 can drive the insulation board 2 16 to move up and down by moving up and down. The insulation board 2 16 plays a role of heat insulation and can partially block the through slot 1 8, thereby further reducing the heat loss inside the high and low temperature box 3.

[0053] See also Figure 1 , Figure 6 and Figure 8 , an embodiment provided by the present invention: a stable high and low temperature cycle test bench for electric actuator performance detection;

[0054] It includes a hydraulic cylinder three 33 and a movable plate two 35. The hydraulic cylinder three 33 is symmetrically installed on the top of the movable concave plate 24. The hydraulic cylinder three 33 is electrically connected to the control unit 2. The output end of the hydraulic cylinder three 33 is installed with a connecting block two 34. The bottom of the connecting block two 34 is installed with a movable plate two 35. The movable plate two 35 is located on the inner side of the movable concave plate 24. A dynamometer 36 is installed on the top of the movable plate two 35, and the dynamometer 36 is electrically connected to the control unit 2. The hydraulic cylinder three 33 can convert hydraulic energy into kinetic energy, thereby driving the connecting block two 34 to move forward and backward. The connecting block two 34 can drive the movable plate two 35 to move forward and backward by moving forward and backward. The movable plate two 35 can conveniently drive the tested electric actuator to move forward and backward by moving forward and backward, so that the electric actuator can enter or leave the heat insulation box 25 conveniently. The dynamometer 36 plays a role in testing the tested electric actuator. The dynamometer 36 is connected to the output end of the electric actuator to be tested through a connecting shaft, thereby conveniently testing the power of the electric actuator.

[0055] See also Figure 1 and Fig. 9, an embodiment provided by the present invention: a stable high and low temperature cycle test bench for electric actuator performance detection;

[0056] The test bench body 1 includes a plate body 2 37, a plate body 2 37 is installed on one side of the test bench body 1, a hydraulic cylinder 4 38 is installed on one side of the plate body 2 37, the hydraulic cylinder 4 38 is connected to the control unit 2 by electrical signals, a stroke plate 39 is installed on the output end of the hydraulic cylinder 4 38, a hydraulic cylinder 5 40 is installed on the top of the stroke plate 39, the hydraulic cylinder 5 40 is connected to the control unit 2 by electrical signals, a carrying frame 41 is installed on the output end of the hydraulic cylinder 5 40, a hydraulic cylinder 6 42 is symmetrically installed on the outer side of the carrying frame 41, and the hydraulic cylinder 6 42 is connected to the control unit 2 by electrical signals, a clamping plate 43 is installed on the output end of the hydraulic cylinder 6 42, the plate body 2 37 can provide an installation position for the hydraulic cylinder 4 38, and one side of the plate body 2 37 is symmetrically provided with The supporting rod is used to support the stroke plate 39 so that the hydraulic cylinder four 38 has a position for installation. The hydraulic cylinder four 38 can convert hydraulic energy into kinetic energy, thereby driving the stroke plate 39 to move left and right. The stroke plate 39 can drive the hydraulic cylinder five 40 and the carrying frame 41 to move left and right by moving left and right. The hydraulic cylinder five 40 can convert hydraulic energy into kinetic energy, thereby driving the carrying frame 41 to move up and down. The carrying frame 41 can drive the clamping plate 43 to move up and down by moving up and down. The hydraulic cylinder six 42 can convert hydraulic energy into kinetic energy, thereby driving the clamping plate 43 to move left and right. The clamping plate 43 can clamp the electric actuator by moving inward, thereby facilitating the transportation of the electric actuator.

[0057] The method of using the high and low temperature cycle test bench for stable electric actuator performance testing is as follows:

[0058] S1, placing the actuator inside the heat-insulating box 25, and then connecting the output end of the actuator to the input end of the dynamometer 36 through a transmission shaft, and then moving the heat-insulating box 25 back into the high and low temperature box 3, and then testing the actuator by heating or cooling;

[0059] S2. After the test is completed, the movable heat-insulating rod 28 moves to the left to block the second through-slot 26, and then the movable heat-insulating plate 10 moves upward, the movable heat-insulating frame 13 and the movable heat-insulating plate 2 16 move to the right, and then the insulation door 7 moves upward, and the insulation box 25 moves forward so that the part with the second through-slot 26 is moved out of the high-low temperature box 3;

[0060] S3, then the heat insulation fixed plate 32 moves to both sides, the movable plate 2 35 drives the actuator to move forward, and then the clamping plate 43 clamps the actuator and moves it away.

[0061] S2 also includes the following steps:

[0062] S21, after the heat-insulating door 7 is moved upward, the movable heat-insulating plate 1 10 is moved downward, and the movable heat-insulating frame 13 and the movable heat-insulating plate 2 16 are moved to the left to block the through groove 1 8.

[0063] Working principle: Before using the stable high and low temperature cycle test bench for electric actuator performance testing, you should first check whether there are any problems that affect the use of the stable high and low temperature cycle test bench for electric actuator performance testing. Place the actuator inside the heat insulation box 25, and then connect the output end of the actuator to the input end of the dynamometer 36 through a transmission shaft. Then, the heat insulation box 25 moves back into the high and low temperature box 3, and then heats it through the heating rod 21 or cools it through the refrigerator 18. The hot air or cold air enters the heat insulation box 25 through the through slot 26 to test the high temperature resistance or low temperature resistance of the actuator.

[0064] S2. After the test is completed, the movable insulation rod 28 moves to the left to block the through slot 26, then the movable insulation board 10 moves upward, the movable insulation frame 13 and the movable insulation board 2 16 move to the right, and then the insulation door 7 moves up, then the movable insulation board 10 moves down, the movable insulation frame 13 and the movable insulation board 2 16 move to the left to block the through slot 1 8, thereby reducing the loss of heat inside the high and low temperature box 3 through the through slot 1 8, and the insulation box 25 moves forward so that the part with the through slot 26 moves out of the high and low temperature box 3, and the insulation box 25 itself blocks the front opening part of the high and low temperature box 3, thereby reducing the loss of heat inside the high and low temperature box 3 and saving energy. Then the insulation fixing plate 32 moves to both sides, and the movable plate 2 35 drives the actuator to move forward, and then the clamping plate 43 clamps the actuator and transports it away.

[0065] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference signs in the claims should not be regarded as limiting the rights involved.

Claims

1. A stable high and low temperature cycle test bench for electric actuator performance testing, characterized by: It comprises a test bench body (1), a high and low temperature box (3) and a movable concave plate (24), wherein a control unit (2) is installed on the top of the test bench body (1), and a high and low temperature box (3) is installed on the top of the test bench body (1); A plate body (22) is installed at the bottom of the test bench body (1), a hydraulic cylinder (23) is symmetrically installed on the top of the plate body (22), and the hydraulic cylinder (23) is electrically connected to the control unit (2), an active concave plate (24) is installed at the output end of the hydraulic cylinder (23), a heat insulation box (25) is installed on the top of the active concave plate (24), a through slot (26) is opened through the top of the heat insulation box (25), and a plurality of electric telescopic units (27) are installed on the inner wall of the top of the heat insulation box (25), and the electric telescopic units (27) are electrically connected to the control unit (2). The electric telescopic unit (27) is electrically connected to the control unit (2); an output end of the electric telescopic unit (27) is provided with a movable heat insulation mechanism; electric telescopic units (30) are symmetrically mounted on the inner walls of both sides of the heat insulation box (25); the electric telescopic unit (30) is electrically connected to the control unit (2); a pressure sensor (31) is mounted on the output end of the electric telescopic unit (30); the pressure sensor (31) is electrically connected to the control unit (2); and an input end of the pressure sensor (31) is provided with a heat insulation fixing plate (32); The second through groove (26) can provide a transmission path for hot air or cold air inside the high and low temperature box (3) to enter the interior of the heat insulation box (25); The heat insulation mechanism comprises a movable heat insulation rod (28) and a movable heat insulation board three (29), one side of the movable heat insulation rod (28) is connected to the output end of the electric telescopic unit four (27), and the bottom of the movable heat insulation rod (28) is installed with a movable heat insulation board three (29); The movable heat-insulating rod (28) can block the second through slot (26) by moving leftward, thereby preventing hot air or cold air inside the high and low temperature box (3) from entering the interior of the heat-insulating box (25), and the movable heat-insulating plate three (29) can prevent hot air entering the interior of the heat-insulating box (25) from entering the right side space of the heat-insulating fixed plate (32) on the right side.

2. A stable high and low temperature cycle test bench for electric actuator performance testing according to claim 1, characterized in that: The front of the high-low temperature box (3) is symmetrically provided with a guide frame (4); the top of the high-low temperature box (3) is provided with a refrigerator (18); the refrigerator (18) is electrically connected to the control unit (2); a plurality of solenoid valves (19) are provided at the output end of the refrigerator (18); the solenoid valves (19) are electrically connected to the control unit (2); a refrigeration pipe (20) is provided at the output end of the solenoid valve (19); the output end of the refrigeration pipe (20) is connected to the input end of the high-low temperature box (3); a heating rod (21) is provided on the inner wall of the back of the high-low temperature box (3); the heating rod (21) is electrically connected to the control unit (2); a temperature detection unit (44) is provided on the inner wall of the top of the high-low temperature box (3); the temperature detection unit (44) is electrically connected to the control unit (2).

3. A stable high and low temperature cycle test bench for electric actuator performance testing according to claim 2, characterized in that: Hydraulic cylinders (5) are symmetrically mounted on both sides of the high and low temperature box (3), and the hydraulic cylinders (5) are electrically connected to the control unit (2). A connecting plate (6) is mounted on the output end of the hydraulic cylinder (5), and an insulating door (7) is mounted on the bottom of the connecting plate (6). The insulating door (7) is located on the inner side of the guide frame (4), and a through groove (8) is provided on the front side of the insulating door (7).

4. A stable high and low temperature cycle test bench for electric actuator performance testing according to claim 3, characterized in that: An electric telescopic unit (9) is installed on the front of the heat insulation door (7), and the electric telescopic unit (9) is electrically connected to the control unit (2). A movable heat insulation board (10) is installed on the output end of the electric telescopic unit (9), and a laser rangefinder (11) is installed on the front of the movable heat insulation board (10), and the laser rangefinder (11) is electrically connected to the control unit (2).

5. The stable high and low temperature cycle test bench for electric actuator performance testing according to claim 3 is characterized by: The front of the heat insulation door (7) is provided with an electric telescopic unit 2 (12), which is electrically connected to the control unit (2); an active heat insulation frame (13) is provided at the output end of the electric telescopic unit 2 (12); an electric telescopic unit 3 (14) is provided at the front of the active heat insulation frame (13), which is electrically connected to the control unit (2); a connecting block 1 (15) is provided at the output end of the electric telescopic unit 3 (14); an active heat insulation board 2 (16) is provided at the back of the connecting block 1 (15), and the active heat insulation board 2 (16) is located on the inner side of the active heat insulation frame (13); a laser rangefinder 2 (17) is provided at the top of the connecting block 1 (15), and the laser rangefinder 2 (17) is electrically connected to the control unit (2).

6. A stable high and low temperature cycle test bench for electric actuator performance testing according to claim 1, characterized in that: A hydraulic cylinder three (33) is symmetrically mounted on the top of the movable concave plate (24), and the hydraulic cylinder three (33) is electrically connected to the control unit (2). A connecting block two (34) is mounted on the output end of the hydraulic cylinder three (33), and a movable plate two (35) is mounted on the bottom of the connecting block two (34). The movable plate two (35) is located on the inner side of the movable concave plate (24), and a dynamometer (36) is mounted on the top of the movable plate two (35), and the dynamometer (36) is electrically connected to the control unit (2).

7. The stable high and low temperature cycle test bench for electric actuator performance testing according to claim 1, characterized in that: A plate body 2 (37) is installed on one side of the test bench body (1), a hydraulic cylinder 4 (38) is installed on one side of the plate body 2 (37), the hydraulic cylinder 4 (38) is electrically connected to the control unit (2), a stroke plate (39) is installed on the output end of the hydraulic cylinder 4 (38), a hydraulic cylinder 5 (40) is installed on the top of the stroke plate (39), the hydraulic cylinder 5 (40) is electrically connected to the control unit (2), a carrying frame (41) is installed on the output end of the hydraulic cylinder 5 (40), a hydraulic cylinder 6 (42) is symmetrically installed on the outer side of the carrying frame (41), and the hydraulic cylinder 6 (42) is electrically connected to the control unit (2), and a clamping plate (43) is installed on the output end of the hydraulic cylinder 6 (42).

8. A method for using a stable high and low temperature cycle test bench for electric actuator performance testing according to any one of claims 1 to 7, characterized in that: The method of using the high and low temperature cycle test bench for stable electric actuator performance testing is as follows: S1, placing the actuator inside the heat-insulating box (25), and then connecting the output end of the actuator to the input end of the dynamometer (36) via a transmission shaft, and then moving the heat-insulating box (25) back into the high and low temperature box (3), and then testing the actuator by heating or cooling; S2. After the test is completed, the movable heat-insulating rod (28) is moved to the left to block the second through-slot (26), and then the movable heat-insulating plate (10) is moved upward, the movable heat-insulating frame (13) and the movable heat-insulating plate (16) are moved to the right, and then the insulation door (7) is moved upward, and the insulation box (25) is moved forward so that the portion having the second through-slot (26) is moved out of the high-low temperature box (3); S3, the heat-insulating fixed plate (32) then moves to both sides, the movable plate 2 (35) drives the actuator to move forward, and then the clamping plate (43) clamps the actuator and transports it away.

9. The method for using a stable high and low temperature cycle test bench for electric actuator performance testing according to claim 8, characterized in that: The step S2 also includes the following steps: S21. After the insulation door (7) is moved upward, the movable insulation board 1 (10) is moved downward, and the movable insulation frame (13) and the movable insulation board 2 (16) are moved to the left to block the through groove 1 (8).

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