Electric cylinder comprehensive performance testing device

Abstract

The invention relates to an electric cylinder comprehensive performance testing device, which comprises a mounting seat, an adapter block assembly, a digital display depth gauge, a reverse transmission push rod assembly, a magnetic powder brake, a torque sensor, a motor, a sealing plate, an air pressure protection grade testing assembly and a console, and is characterized in that two ends of a tested electric cylinder are respectively mounted on the mounting seat and the adapter block assembly; the two ends of the digital display depth gauge are connected with the switching block assembly and the reverse transmission push rod assembly respectively. The reverse transmission push rod assembly is connected with the torque sensor; the magnetic powder brake is connected with the torque sensor; and the sealing plate is arranged on the tested electric cylinder and the motor. Compared with the prior art, the device can test multiple performances of the electric cylinder at the same time; the torque sensor tests the torque between the reverse transmission push rod assembly and the magnetic powder brake; the air pressure protection grade test assembly is connected with different to-be-tested electric cylinders through the sealing plate, adjustment is not needed in each test, and the magnetic powder brake can provide stable output torque and provide constant load required by the electric cylinder thrust test.

Description

Technical Field

[0001] The invention relates to electric cylinder testing, in particular to an electric cylinder comprehensive performance testing device. Background Art

[0002] For the performance test of electric cylinders, thrust, stroke, accuracy, life and protection level tests are important test items and are important parameters required to fully understand the performance of electric cylinders. However, current performance test equipment usually has many defects, such as few test items, inconvenient installation, inability to load constant loads, and non-adjustable protection level test parameters.

[0003] After searching, the authorization announcement number CN220568305U discloses a tool for testing the push and pull force of an electric cylinder, which specifically discloses: by setting up a load simulation mechanism composed of a brake disc, a brake pad and other structures, when the electric cylinder to be tested involves different sizes and thrusts, the friction force of the friction mechanism (that is, the size of the simulated load) can be adaptively adjusted. However, the prior art is inconvenient to disassemble and assemble, and uses a brake disc as a load adjustment mechanism, and cannot check the real-time load change.

[0004] Authorization announcement number CN209182008U discloses a load and stroke test device for an electric push rod, which specifically discloses: measuring the load through a spring and a pressure sensor, and measuring the stroke through a magnetic grid sensor strip. However, the spring in the prior art cannot provide a constant load, and the load value is difficult to control.

[0005] Authorization announcement number CN218121301U discloses a test fixture for dynamic sealing performance detection of electric cylinders, which specifically discloses: air is introduced and exhausted into the closed cavity formed by the sealing cover plate, the sealing fixture cover and the electric cylinder through the air inlet and air outlet interfaces to adjust the pressure inside the closed cavity. However, the existing technology requires air pressure to be adjusted for each measurement, and batch testing takes a long time.

[0006] In summary, how to design an electric cylinder performance testing device that can check the real-time load change, the load value is easy to control, and there is no need to adjust the air pressure during each measurement is a technical problem that needs to be solved. Summary of the invention

[0007] The purpose of the present invention is to provide an electric cylinder comprehensive performance testing device in order to overcome the defects of the above-mentioned prior art that the real-time load change cannot be checked, the load value is difficult to control, or the batch testing takes a long time.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] According to one aspect of the present invention, there is provided an electric cylinder comprehensive performance testing device, comprising a mounting seat, an adapter block assembly, a digital depth gauge, a reverse transmission push rod assembly, a magnetic powder brake, a torque sensor, a motor, a sealing plate, an air pressure protection level test assembly and a control console, wherein the adapter block assembly is slidably mounted on the mounting seat, one end of the electric cylinder to be tested is mounted on the mounting seat, and the other end is mounted on the adapter block assembly; one end of the digital depth gauge is mounted on the adapter block assembly, and the other end is connected to one end of the reverse transmission push rod assembly; the other end of the reverse transmission push rod assembly is mounted on the mounting seat and connected to the torque sensor; the magnetic powder brake is connected to the torque sensor, and the motor is drive-connected to the electric cylinder to be tested; the sealing plate is mounted on the electric cylinder to be tested and the motor, and connected to the air pressure protection level test assembly; the air pressure protection level test assembly is mounted on the control console; the control console is communicatively connected to the magnetic powder brake, the torque sensor, the motor and the air pressure protection level test assembly.

[0010] As a preferred technical solution, the mounting base includes a bottom mounting plate, a side support plate, an electric cylinder mounting flange, an electric cylinder mounting support, a bracket, a push rod connecting flange and a guide rail, the side support plate is mounted on both sides of one end of the bottom mounting plate, the electric cylinder mounting flange is mounted on the side support plate, the electric cylinder mounting support is mounted on the electric cylinder mounting flange, and one end of the electric cylinder to be tested is mounted on the electric cylinder mounting flange;

[0011] The bracket and the push rod connecting flange are installed on the bottom mounting plate, one end of the digital depth gauge connected to the reverse transmission push rod assembly is mounted on the bracket, the other end of the reverse transmission push rod assembly is installed on the push rod connecting flange, and the adapter block assembly is installed on the guide rail and forms a moving pair with the guide rail.

[0012] As a preferred technical solution, both ends of the electric cylinder to be tested are respectively connected to the electric cylinder mounting flange and the adapter block assembly through a pin shaft, and the reverse transmission push rod assembly is connected to the torque sensor through a coupling.

[0013] As a preferred technical solution, a foot pad is installed on the side of the bottom mounting plate close to the ground, and a handle is installed on the side.

[0014] As a preferred technical solution, the adapter block assembly includes a first pin shaft sleeve, a second pin shaft sleeve and an adapter block, the adapter block is U-shaped, and mounting holes are provided at both ends of the adapter block. The first pin shaft sleeve and the second pin shaft sleeve are respectively installed in a mounting hole, and the pin passes through the first pin shaft sleeve and the second pin shaft sleeve.

[0015] As a preferred technical solution, the reverse transmission push rod assembly includes a piston push rod, a cylinder, a nut, a screw, a bearing washer, a bearing and a push rod mounting flange. A push rod connecting flange is provided on the mounting seat. The push rod mounting flange is sleeved on one end of the cylinder and connected to the push rod connecting flange. One end of the piston push rod is connected to the nut, one end of the screw is installed in the nut, and the other end is sleeved with a bearing and passes through the push rod mounting flange. The nut is installed in the cylinder, and the bearing washer is installed on one end face of the bearing.

[0016] As a preferred technical solution, the device further comprises a liftable sensor base, the liftable sensor base is mounted on the mounting plate, and the torque sensor is mounted on the liftable sensor base.

[0017] As a preferred technical solution, the air pressure protection level test assembly includes an air inlet, an air cleaner, a vacuum generator, a low vacuum mechanical cleaner, a pressure regulating and relief valve, a one-way valve, a digital pressure gauge bracket, a digital pressure gauge, a three-way connection and an air extraction port. The air inlet, air cleaner, vacuum generator, low vacuum mechanical cleaner, pressure regulating and relief valve and one-way valve are connected in sequence. The three-way connection connects the one-way valve, the digital pressure gauge and the air extraction port. The digital pressure gauge is installed on the digital pressure gauge bracket.

[0018] As a preferred technical solution, the device also includes a mounting stand and a magnetic powder brake display controller, a sensor display controller, a power supply and a motor driver installed on the mounting stand, and the air pressure protection level test component is installed on the mounting stand; the magnetic powder brake display controller is communicatively connected to the magnetic powder brake, the sensor display controller is communicatively connected to the torque sensor, the motor driver is communicatively connected to the motor, and the power supply is connected to the magnetic powder brake display controller, the sensor display controller, the motor driver and the air pressure protection level test component.

[0019] As a preferred technical solution, the device also includes a motor wire connector, and the sealing plate is provided with a sealed air pipe joint and a waterproof wire hole joint; the sealed air pipe joint is connected to the air pressure protection level test component, and the motor wire connector passes through the waterproof wire hole joint, one end is connected to the power supply, and the other end is connected to the motor driver; a waterproof sealant is provided between the motor wire connector and the waterproof wire hole joint.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1) The present invention drives the electric cylinder to be tested by a motor, tests the stroke and accuracy of the electric cylinder to be tested by a digital depth gauge, and tests the thrust of the electric cylinder to be tested by a reverse transmission push rod assembly; performs air tightness test by a pneumatic protection level test assembly, and the motor life test can be realized by repeated experimental operations, thereby realizing the simultaneous testing of multiple performances of the electric cylinder; the torque sensor tests the torque between the reverse transmission push rod assembly and the magnetic powder brake; the pneumatic protection level test assembly connects different electric cylinders to be tested by a sealing plate, and does not need to be adjusted for each test. The magnetic powder brake can provide a stable output torque and a constant load required for the electric cylinder thrust test;

[0022] 2) The components of the present invention are installed on the mounting base through the electric cylinder mounting flange, electric cylinder mounting support, bracket, and push rod connecting flange on the mounting base, which is convenient for disassembly and assembly; the adapter block assembly is installed on the guide rail and can slide conveniently; a foot pad is installed on the bottom mounting plate to ensure the stable placement of the device and play a role in earthquake resistance, and a handle is installed to facilitate the transportation and placement of the device; the liftable sensor base can adjust the installation height of the sensor to adapt to different electric cylinders;

[0023] 3) In the reverse transmission push rod assembly of the present invention, the linear motion of the nut is converted into rotational motion by the screw rod. The push rod mounting flange is connected to the push rod connecting flange, and the axial force transmitted by the screw rod through the bearing is transmitted to the push rod connecting flange, and finally transmitted to the bottom mounting plate;

[0024] 4) The air cleaner of the present invention can filter the air entering the air inlet to ensure that the air is dry and free of impurities; the vacuum generator generates a vacuum environment; the low vacuum mechanical cleaner can purify the extracted air into dry and clean air to ensure the long-life operation of the vacuum generator; the pressure regulating and relief valve can control the vacuum pressure generated by the vacuum generator, which is convenient for conducting large-scale protection level tests and adjusting the parameters of the air pressure difference required for tests of different protection levels; the one-way valve can ensure that after the vacuum generator stops working, the inside of the tested electric cylinder maintains a stable vacuum state; the digital pressure gauge can display the air pressure value inside the tested electric cylinder in real time, which is convenient for observation;

[0025] 5) The sensor display controller of the present invention can display the torque value detected by the torque sensor in real time and can adjust the torque sensor parameters; the magnetic powder brake display controller can control the input current or voltage of the magnetic powder brake, and then adjust the output torque of the magnetic powder brake; the motor driver is responsible for controlling and driving the motor under test; the power supply provides power to various electrical equipment;

[0026] 6) The waterproof wire hole connector of the present invention allows the motor wire connector to pass through the sealing plate and connect to the drive and power supply, and is sealed by injecting waterproof sealant; the motor wire connector is connected to the motor power line and communication line, which facilitates the installation and disassembly of the sealing plate and different motors. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of an electric cylinder comprehensive performance testing device of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the adapter block assembly of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the reverse transmission push rod assembly of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the air pressure protection level test assembly of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of one side of the sealing plate of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the other side of the sealing plate of the present invention;

[0033] The numbers in the figure show:

[0034] 101. Bottom mounting plate, 102. Side support plate, 103. Electric cylinder mounting flange, 104. Electric cylinder mounting bracket, 105. Pin shaft, 106. Adapter block assembly, 107. Guide rail, 108. Bracket, 109. Reverse transmission push rod assembly, 110. Push rod connecting flange, 111. Coupling, 112. Handle, 113. Magnetic powder brake, 114. Torque sensor, 115. Liftable sensor base, 116. Magnetic powder brake display controller, 117. Sensor display controller, 118. Power supply, 119. Motor driver, 120. Mounting stand, 121. Sealing plate, 122. Base foot pad, 123. Digital depth gauge, 124. Tested electric cylinder, 201. Air inlet, 202. Air cleaner, 203. Vacuum generator, 204. Low vacuum mechanical cleaner, 205. Pressure regulating and relief valve, 206. Check valve, 207. Digital pressure gauge bracket, 208. Digital pressure gauge, 209. Tee, 210. Air extraction port, 301. First pin shaft sleeve, 302. Second pin shaft sleeve, 303. Adapter block, 401. Piston push rod, 402. Cylinder barrel, 403. Nut, 404. Screw, 405. Bearing washer, 406. Bearing, 407. Push rod mounting flange, 501. Sealed air pipe joint, 502. Waterproof wire hole joint, 503. Motor line connector. DETAILED DESCRIPTION

[0035] 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 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 should fall within the scope of protection of the present invention.

[0036] The present invention provides a comprehensive performance test device for an electric cylinder, which can test the stroke, accuracy, thrust, protection level and life of the electric cylinder. The device has the outstanding advantages of high integration, high automation, high accuracy, convenient disassembly and assembly, convenient adjustment and real-time display. It includes a mounting seat, an adapter block assembly 106, a digital depth gauge 123, a reverse transmission push rod assembly 109, a magnetic powder brake 113, a torque sensor 114, a motor, a sealing plate 121, an air pressure protection level test assembly and a control console.

[0037] The mounting base includes a bottom mounting plate 101, a side support plate 102, an electric cylinder mounting flange 103, an electric cylinder mounting support 104, a bracket 108, a push rod connecting flange 110 and a guide rail 107. The side support plate 102 is mounted on both sides of one end of the bottom mounting plate 101, the electric cylinder mounting flange 103 is mounted on the side support plate 102, the electric cylinder mounting support 104 is mounted on the electric cylinder mounting flange 103, and one end of the electric cylinder to be tested is mounted on the electric cylinder mounting flange 103;

[0038] The bracket 108 and the push rod connecting flange 110 are installed on the bottom mounting plate 101, one end of the digital depth gauge 123 connected to the reverse transmission push rod assembly 109 is mounted on the bracket 108, and the other end of the reverse transmission push rod assembly 109 is installed on the push rod connecting flange 110, and the adapter block assembly 106 is installed on the guide rail 107 and forms a moving pair with the guide rail 107.

[0039] The bottom mounting plate 101 is provided with 6 base foot pads 122 for ensuring the stability and shock resistance of the device, and is also provided with 4 handles 112 for easy transportation and placement of the device.

[0040] The side support plate 102, the electric cylinder mounting flange 103 and the electric cylinder mounting bracket 104 are installed together to bear the axial force generated by the electric cylinder 124 to be tested and the magnetic powder brake 113. The electric cylinder mounting bracket 104 is connected to the electric cylinder mounting flange 103 by threads, and one end of the electric cylinder 124 to be tested is mounted on the device through the pin 105. The electric cylinder mounting flange 103 is provided with a plurality of through holes and countersunk holes, and electric cylinders of different models and sizes can be connected through the mounting flange. The electric cylinder mounting bracket 104 is provided with an open U-shaped groove and a pin hole to facilitate the installation and removal of the electric cylinder. The other end of the electric cylinder 124 to be tested is installed and connected to the adapter assembly. The adapter assembly is connected to the slider of the guide rail 107 on the lower side, and the guide rail 107 has the function of guiding and bearing the overturning moment of the electric cylinder. The adapter assembly is connected to the reverse transmission push rod assembly 109, which is responsible for converting the linear motion output by the electric cylinder into rotational motion. The reverse transmission push rod assembly 109 is connected to the push rod connecting flange 110 via screws.

[0041] One end of the digital depth gauge 123 is fixed to the adapter block assembly 106, and the other end is fixed to the bracket 108. When the measured electric cylinder 124 pushes the adapter block assembly 106 to move, the digital depth gauge 123 can move with the adapter block assembly 106, so that the stroke and running accuracy of the measured electric cylinder 124 can be displayed in real time. The bracket 108 can not only assist the digital depth gauge 123 to complete the stroke test and running accuracy test of the measured electric cylinder 124, but also has the function of bearing the overturning moment of the reverse transmission push rod assembly 109 and ensuring the horizontal installation of the reverse transmission push rod.

[0042] The adapter block assembly 106 includes a first pin shaft sleeve 301, a second pin shaft sleeve 302 and an adapter block 303. By adjusting the thickness of the second pin shaft sleeve 302, the measured electric cylinder 124 can be installed horizontally. The first pin shaft sleeve 301 and the second pin shaft sleeve 302 are replaceable, which greatly improves the service life of the adapter block assembly 106 and prevents the electric cylinder from being installed tilted due to wear.

[0043] The reverse transmission push rod assembly 109 includes a piston push rod 401, a cylinder 402, a nut 403, a screw rod 404, a bearing washer 405, a bearing 406, and a push rod mounting flange 407. The piston push rod 401 is connected to the nut 403, and the linear motion of the nut 403 is converted into rotational motion by the screw rod 404. The push rod mounting flange 407 is connected to the push rod connecting flange 110, and the axial force transmitted by the screw rod 404 through the bearing 406 is transmitted to the push rod connecting flange 110, and finally transmitted to the bottom mounting plate 101. The bearing 406 can be a deep groove ball bearing.

[0044] The screw rod 404 is connected to the torque sensor 114 through the coupling 111. The torque sensor 114 is responsible for testing the torque between the reverse transmission push rod assembly 109 and the magnetic powder brake 113. The torque sensor 114 is connected to the sensor display controller 117 through a communication line. The sensor display controller 117 can display the torque value detected by the torque sensor 114 in real time and can adjust the parameters of the torque sensor 114. The lower side of the torque sensor 114 is connected to the liftable sensor base 115. The liftable sensor base 115 can adjust the height of the torque sensor 114. The torque sensor 114 is connected to the magnetic powder brake 113 through the coupling 111. The magnetic powder brake 113 can provide a stable output torque and provide a constant load required for the electric cylinder thrust test. The magnetic powder brake 113 is connected to the magnetic powder brake display controller 116 through a communication line. The magnetic powder brake display controller 116 can control the input current or voltage of the magnetic powder brake 113, thereby adjusting the output torque of the magnetic powder brake 113. The motor driver 119 is responsible for controlling and driving the motor under test.

[0045] The power supply 118 is respectively connected to the motor driver 119, the magnetic powder brake display controller 116, the sensor display controller 117 and the vacuum generator 203 to provide power for the above-mentioned devices.

[0046] The air pressure protection level test assembly includes an air inlet 201 , an air cleaner 202 , a vacuum generator 203 , a low vacuum mechanical cleaner 204 , a pressure regulating and relief valve 205 , a one-way valve 206 , a digital pressure gauge bracket 207 , a digital pressure gauge 208 , a three-way connection 209 , and an air extraction port 210 .

[0047] The air inlet 201 is connected to the air cleaner 202 through an air pipe. The air cleaner 202 can filter the air entering the air inlet 201 to ensure that the air is dry and free of impurities. The air cleaner 202 is connected to the vacuum generator 203 through an air pipe. The vacuum generator 203 can use the positive pressure air of the air inlet 201 as power to extract air from the air extraction port 210 to create a vacuum environment. The vacuum generator 203 is connected to the low vacuum mechanical cleaner 204 through an air pipe. The low vacuum mechanical cleaner 204 can purify the extracted air into dry and clean air, ensuring the long life of the vacuum generator 203. The low vacuum mechanical cleaner 204 is connected to the pressure regulating and relief valve 205 through an air pipe. The pressure regulating and relief valve 205 can control the vacuum pressure generated by the vacuum generator 203, which is convenient for large-scale protection level testing and adjusting the parameters of the air pressure difference required for different protection level tests. The pressure regulating and relief valve 205 is connected to the one-way valve 206 through an air pipe. The one-way valve 206 can ensure that the inside of the electric cylinder 124 under test maintains a stable vacuum state after the vacuum generator 203 stops working. The one-way valve 206 is connected to the digital pressure gauge 208 through an air pipe and a three-way 209. The digital pressure gauge 208 can display the air pressure value inside the electric cylinder 124 under test in real time for easy observation. The digital pressure gauge 208 is fixed on the digital pressure gauge bracket 207.

[0048] The vacuum generation module and the magnetic powder brake display controller 116, the sensor display controller 117, the power supply 118, and the motor driver 119 are all fixed on the mounting stand 120. The mounting stand 120 is provided with a plurality of long waist-shaped holes and square holes to facilitate the installation, movement, disassembly and installation of various equipment. A circular through hole is provided on each side of the mounting stand 120 to facilitate the passage of power lines, communication lines, etc. The power supply 118 is a portable power supply.

[0049] The sealing plate 121 includes a sealing plate 121, a sealing air pipe joint 501, a waterproof wire hole joint 502, and a motor line connector 503. The sealing plate 121 is connected to the electric cylinder 124 to be tested, and is used to seal the electric cylinder and connect to the vacuum generator 203. The sealing plate 121 is equipped with a sealing air pipe joint 501, and the sealing air pipe joint 501 is used to connect and seal the vacuum outlet 210 of the vacuum generator 203. The sealing plate 121 is equipped with a waterproof wire hole joint 502, which allows the motor line connector 503 to pass through the sealing plate 121 and connect to the drive and power supply. After the motor line connector 503 passes through, the waterproof wire hole joint 502 is filled with waterproof sealant for sealing. The motor line connector 503 is connected to the motor power line and the communication line, which is convenient for the sealing plate 121 to be installed and removed from different motors.

[0050] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A comprehensive performance testing device for an electric cylinder, characterized in that: The invention comprises a mounting seat, an adapter block assembly (106), a digital depth gauge (123), a reverse transmission push rod assembly (109), a magnetic powder brake (113), a torque sensor (114), a motor, a sealing plate (121), an air pressure protection level test assembly and a control console. The adapter block assembly (106) is slidably mounted on the mounting seat, one end of the electric cylinder (124) to be tested is mounted on the mounting seat, and the other end is mounted on the adapter block assembly (106); one end of the digital depth gauge (123) is mounted on the adapter block assembly (106), and the other end is connected to the reverse transmission push rod assembly (109). one end is connected; the other end of the reverse transmission push rod assembly (109) is mounted on a mounting seat and connected to a torque sensor (114); the magnetic powder brake (113) is connected to the torque sensor (114), and the motor is drivingly connected to the electric cylinder (124) to be tested; the sealing plate (121) is mounted on the electric cylinder (124) to be tested and the motor, and connected to an air pressure protection level test assembly; the air pressure protection level test assembly is mounted on a control console; the control console is communicatively connected to the magnetic powder brake (113), the torque sensor (114), the motor and the air pressure protection level test assembly.

2. The electric cylinder comprehensive performance testing device according to claim 1 is characterized in that: The mounting base comprises a bottom mounting plate (101), a side support plate (102), an electric cylinder mounting flange (103), an electric cylinder mounting support (104), a bracket (108), a push rod connecting flange (110) and a guide rail (107); the side support plate (102) is mounted on both sides of one end of the bottom mounting plate (101); the electric cylinder mounting flange (103) is mounted on the side support plate (102); the electric cylinder mounting support (104) is mounted on the electric cylinder mounting flange (103); and one end of the electric cylinder to be tested is mounted on the electric cylinder mounting flange (103); The bracket (108) and the push rod connecting flange (110) are mounted on the bottom mounting plate (101); one end of the digital depth gauge (123) connected to the reverse transmission push rod assembly (109) is mounted on the bracket (108); the other end of the reverse transmission push rod assembly (109) is mounted on the push rod connecting flange (110); and the adapter block assembly (106) is mounted on the guide rail (107) and forms a moving pair with the guide rail (107).

3. The electric cylinder comprehensive performance testing device according to claim 2 is characterized in that: The two ends of the electric cylinder to be tested are respectively connected to the electric cylinder mounting flange (103) and the adapter block assembly (106) through a pin shaft (105), and the reverse transmission push rod assembly (109) is connected to the torque sensor (114) through a coupling (111).

4. The electric cylinder comprehensive performance testing device according to claim 2, characterized in that: A foot pad is installed on the side of the bottom mounting plate (101) close to the ground, and a handle (112) is installed on the side.

5. The electric cylinder comprehensive performance testing device according to claim 1 is characterized in that: The adapter block assembly (106) comprises a first pin shaft sleeve (301), a second pin shaft sleeve (302) and an adapter block (303); the adapter block (303) is U-shaped; both ends of the adapter block (303) are provided with mounting holes; the first pin shaft sleeve (301) and the second pin shaft sleeve (302) are respectively mounted in a mounting hole; the pin shaft (105) passes through the first pin shaft sleeve (301) and the second pin shaft sleeve (302).

6. The electric cylinder comprehensive performance testing device according to claim 1, characterized in that: The reverse transmission push rod assembly (109) comprises a piston push rod (401), a cylinder (402), a nut (403), a screw rod (404), a bearing washer (405), a bearing (406) and a push rod mounting flange (407); a push rod connecting flange (110) is provided on the mounting seat; the push rod mounting flange (407) is sleeved on one end of the cylinder (402) and connected to the push rod connecting flange (110); one end of the piston push rod (401) is connected to the nut (403); one end of the screw rod (404) is installed in the nut (403); the other end is sleeved with a bearing (406) and passes through the push rod mounting flange (407); the nut (403) is installed in the cylinder (402); and the bearing washer (405) is installed on one end face of the bearing (406).

7. The electric cylinder comprehensive performance testing device according to claim 1 is characterized in that: The device also includes a liftable sensor base (115), wherein the liftable sensor base (115) is mounted on a mounting plate, and the torque sensor (114) is mounted on the liftable sensor base (115).

8. The electric cylinder comprehensive performance testing device according to claim 1, characterized in that: The air pressure protection level test assembly comprises an air inlet (201), an air cleaner (202), a vacuum generator (203), a low vacuum mechanical cleaner (204), a pressure regulating and relief valve (205), a one-way valve (206), a digital pressure gauge bracket (207), a digital pressure gauge (208), a three-way connection (209) and an air extraction port (210); the air inlet (201), the air cleaner (202), the vacuum generator (203), the low vacuum mechanical cleaner (204), the pressure regulating and relief valve (205) and the one-way valve (206) are connected in sequence; the three-way connection (209) is connected to the one-way valve (206), the digital pressure gauge (208) and the air extraction port (210); and the digital pressure gauge (208) is installed on the digital pressure gauge bracket (207).

9. The electric cylinder comprehensive performance testing device according to claim 1, characterized in that: The device further comprises a mounting stand (120) and a magnetic powder brake display controller (116), a sensor display controller (117), a power supply (118) and a motor driver (119) mounted on the mounting stand (120); the air pressure protection level test component is mounted on the mounting stand (120); the magnetic powder brake display controller (116) is communicatively connected to the magnetic powder brake (113), the sensor display controller (117) is communicatively connected to the torque sensor (114), the motor driver (119) is communicatively connected to the motor, and the power supply (118) is connected to the magnetic powder brake display controller (116), the sensor display controller (117), the motor driver (119) and the air pressure protection level test component.

10. The electric cylinder comprehensive performance testing device according to claim 9, characterized in that: The device also includes a motor line connector (503), and the sealing plate (121) is provided with a sealed air pipe joint (501) and a waterproof wire hole joint (502); the sealed air pipe joint (501) is connected to the air pressure protection level test component, and the motor line connector (503) passes through the waterproof wire hole joint (502), one end of which is connected to a power source (118) and the other end of which is connected to a motor driver (119); a waterproof sealant is provided between the motor line connector (503) and the waterproof wire hole joint (502).

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