Test equipment for gear shifting actuator

Abstract

The utility model discloses test equipment for a gear shifting actuator, which comprises a rack, a locked-rotor test module and an output force and stroke test module, an accommodating space is formed in the rack, and a bottom plate is arranged in the accommodating space; the locked-rotor test module is mounted on the bottom plate and is used for carrying out locked-rotor test on the gear shifting actuator under test; the output force and stroke testing module is installed on the bottom plate and used for testing the output force and the output stroke of the gear shifting actuator under test. The gear shifting actuator testing device integrates the locked-rotor testing module and the output force and stroke testing module, can test locked-rotor, output force and output stroke of a gear shifting actuator at the same time, and is higher in flexibility.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle detection equipment, in particular to a device for testing a gear shift actuator. Background Art

[0002] The transmission is a key device in the vehicle's power system, and its performance directly affects the engine's power, the vehicle's driving performance, economy, and reliability. The transmission performs gear shifting operations through the shift actuator. Functional testing of the shift actuator to check the working status of the shift actuator is crucial to ensuring the vehicle's driving smoothness and reliability. During the test, the output force and output stroke of the shift actuator are mainly tested, and the motor in the actuator also needs to be tested for stall. The existing parameter testing methods for shift mechanisms vary, and multiple tests often take a long time. There is no test device that can combine multiple tests together. There is no way to effectively monitor and prevent safety issues for the precise operating parameters of each component during equipment operation.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0004] The purpose of the utility model is to provide a gear shift actuator testing device for solving the problem of coordinated testing of gear shift actuators.

[0005] In order to achieve the above-mentioned purpose, a specific embodiment of the present invention provides a test device for a shift actuator, including a frame, a stall test module and an output force and stroke test module. The frame is formed with a accommodating space, and a base plate is provided in the accommodating space; the stall test module is installed on the base plate for performing a stall test on the shift actuator under test; the output force and stroke test module is installed on the base plate for testing the output force and output stroke of the shift actuator under test.

[0006] In one or more embodiments of the present invention, the stall test module includes a first base for supporting the shift actuator, and two first test mechanisms arranged on both sides of the first base, and the two first test mechanisms are used to abut and prevent the guide block on the shift actuator from moving from both sides.

[0007] In one or more embodiments of the present invention, the first testing mechanism includes a guide rail fixed on the base plate, a slider mounted on the guide rail, and a push rod fixed to the slider and used to abut against the shift actuator under test.

[0008] In one or more embodiments of the present invention, a pressure sensor is arranged between the push rod and the slider, and / or the first testing mechanism also includes a first motor and a reducer, the first motor drives the slider to move through the reducer, and / or the stall test module also includes a rotary clamping cylinder fixed on the base plate, the rotary clamping cylinder is arranged on one side of the first base to press the shift actuator under test against the first base, and / or the stall test module also includes a first temperature sensor fixed on one side of the first base and facing the shift actuator under test.

[0009] In one or more embodiments of the present invention, the output force and stroke testing module includes a second base for supporting the shift actuator, and two second testing mechanisms arranged on both sides of the second base, a connecting rod is connected between the two second testing mechanisms, and the connecting rod is connected to the guide block on the shift actuator, and each second testing mechanism includes a displacement sensor for detecting the moving distance of the connecting rod.

[0010] In one or more embodiments of the present invention, the output force and stroke testing module includes two support rods arranged in parallel, the second testing mechanism includes a splint that is sleeved on the support rods and detachably connected, the connecting rod is connected to the two splints, and the displacement sensor is arranged on one side of the splint and abuts against the splint.

[0011] In one or more embodiments of the present invention, the second testing mechanism further includes a load assembly mounted on the support rod, the load assembly including a connecting member mounted on the support rod, and a weight plate disposed under the base plate for carrying weights, the connecting member being connected to the weight plate and being detachably fixed to the splint, and the second testing mechanism further includes a tension sensor disposed between the connecting member and the weight plate.

[0012] In one or more embodiments of the present invention, the connecting member is an electromagnet, and / or the load assembly further includes a second motor fixed to the base plate, and a carrier plate connected to the second motor, the weight plate is supported on the carrier plate, and the second motor is connected to and drives the carrier plate to move up and down.

[0013] In one or more embodiments of the present invention, the output force and stroke testing module further includes a second temperature sensor disposed on one side of the second base and facing the shift actuator under test.

[0014] In one or more embodiments of the present invention, the frame is also provided with a touch screen connected to the stall test module, the output force and stroke test module, and the shift actuator under test. The touch screen displays and controls the parameters of the stall test module, the output force and stroke test module, and is simultaneously connected to and displays the current and voltage of the shift actuator under test.

[0015] Compared with the existing technology, the shift actuator testing equipment of the present invention integrates two test modules: a stall test module and an output force and stroke test module. It can perform stall, output force and output stroke tests on the shift actuator at the same time, with higher flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of a shift actuator in one embodiment of the present utility model;

[0018] Figure 2 Schematic diagram of a stall test module, an output force and stroke test module in one embodiment of the present invention;

[0019] Figure 3 A top view of a stall test module and an output force and stroke test module in one embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of a stall test module in one embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of an output force and stroke testing module in one embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of a second test assembly in one embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the second test assembly from another angle in one embodiment of the present invention.

[0024] Description of main reference numerals:

[0025] 100-Shift actuator test equipment, 10-Frame, 11-Base plate, 12-Touch screen, 13-Connecting arm, 14-Mounting frame, 20-Staple test module, 21-First base, 22-First test mechanism, 221-Guide rail, 222-Slider, 223-Push rod, 224-Pressure sensor, 224-First motor, 226-Reducer, 227-Screw, 23-First temperature sensor, 24-Rotary pressing cylinder, 30-Output Force and stroke test module, 31-second base, 32-second test mechanism, 321-displacement sensor, 322-tension sensor, 323-clamp, 324-connector, 325-weight plate, 326-fixed pulley, 327-second motor, 328-carrying plate, 329-bump, 33-connecting rod, 34-second temperature sensor, 35-oil pot, 36-first buffer rod, 37-second buffer rod, 38-limit rod, 39-positioning plate. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0027] like Figure 1-7 As shown, the shift actuator test device 100 in one embodiment of the present invention includes a frame 10, a stall test module 20, and an output force and stroke test module 30. A accommodating space is formed inside the frame 10, and a base plate 11 is provided in the accommodating space. The stall test module 20 and the output force and stroke test module 30 are fixed on the base plate 11. The former is used to perform a stall test on the shift actuator (hereinafter referred to as the actuator), and the latter performs an output force and output stroke test on the actuator. The shift actuator test device 100 in this embodiment integrates the stall test module 20 and the output force and stroke test module 30 on the same frame 10, and can perform output force and output stroke tests as well as stall tests at the same time, with a higher degree of integration.

[0028] A touch screen 12 is installed on the exterior of the frame 10. It is connected to the stall test module 20, the force and stroke test module 30, and the actuators being tested by these modules. It controls and displays the settings for the two test modules, as well as information such as the current and voltage of the actuators being tested. The touch screen 12 also features buttons for start, reset, and emergency stop, as well as a device status indicator. The touch screen 12 is secured to the frame 10 via a rotatable connecting arm 13, allowing for adjustable positioning and orientation, enhancing ease of use.

[0029] In one embodiment, the base plate 11 divides the space within the rack 10 into two upper and lower levels. The two test modules are largely secured within the upper level. The side panels of the upper level of the rack 10 are made of transparent material, allowing for direct observation of the internal test modules and the operating status of the actuator under test.

[0030] The stall test module 20 is as follows Figure 4 As shown, the device comprises a first base 21 and two first test mechanisms 22 disposed on either side of the first base 21. During testing, the actuator is fixed to the first base 21, and the two first test mechanisms 22 approach and abut the actuator's guide block from both sides, preventing it from moving. The inability of the guide block to move indicates that the motor within the actuator is stalled, causing the motor current to increase rapidly. At this time, the touch screen 12 monitors the current, voltage, and other information of the actuator under test.

[0031] When the actuator performs a stall test, the motor current increases, causing its temperature to rise. Therefore, preferably, a first temperature sensor 23 is provided on one side of the first base 21, with its detection end facing the actuator fixed on the first base 21 and connected to the touch screen 12 to monitor the temperature data during the stall test.

[0032] like Figure 4 As shown, the first test mechanism 22 includes a guide rail 221, a slider 222, and a push rod 223. The guide rail 221 is fixed to the base plate 11, the slider 222 is supported and movable on the guide rail 221, and the push rod 223 is fixed to the slider 222. After the test actuator is fixed to the first base 21, the sliders 222 on both sides are pushed to press the push rod 223 against the actuator guide block and fix it. After the test is completed, the sliders 222 on both sides are pushed away from the actuator guide block to disengage the push rod 223 from the actuator guide block, and then the actuator is detached from the first base 21.

[0033] Preferably, the first testing mechanism 22 further includes a pressure sensor 224 , which is disposed between the push rod 223 and the slider 222 and connected to the touch screen 12 , for detecting the output force of the actuator guide block in a locked state.

[0034] In one embodiment, the first testing mechanism 22 further includes a first motor 225 and a reducer 226. A leadscrew 227 connected to the reducer 226 is disposed within the guide rail 221. A threaded hole is provided at the bottom of the slider 222 for the leadscrew 227 to pass through. Driven by the first motor 225, the leadscrew 227 rotates, and the slider 222 moves along the guide rail 221 due to the engagement of the threads. When the push rod 223 abuts the actuator guide block, the first motor 225 stops rotating. The threads secure the slider 222 in the abutted position, preventing it from retreating. This prevents test failure caused by the push rod 223 retreating during a stall test. The first motor 225 is connected to the touch screen 12 and its operation is controlled by the touch screen.

[0035] In one embodiment, the screw holes on the first base 21 are positioned in the same locations as the screw holes on the actuator under test, which is bolted to the first base 21. To further enhance the actuator's securement, the locked-rotor test module 20 also includes an auxiliary actuator securing mechanism: a rotary clamping cylinder 24 secured to one side of the first base 21. When the actuator is installed, the rotary clamping cylinder 24 operates, and its output arm presses the actuator against the first base 21, further enhancing the actuator's securement and preventing shaking or trembling.

[0036] Output force and stroke test module 30 as Figure 5-7 As shown, it includes a second base 31 fixed on the base plate 11, and two second test mechanisms 32 arranged on both sides of the second base 31. The two second test mechanisms 32 are connected by a connecting rod 33. The connecting rod 33 has a hole for the actuator guide block fixed on 31 to be inserted. Each second test mechanism 32 includes a displacement sensor 321. In the output force and stroke test, the actuator to be tested is first fixed on the second base 31, and the guide block is embedded in the hole of the connecting rod 33. When the actuator is tested, the guide block is driven to move by the motor inside the actuator through the guide shaft, thereby driving the connecting rod 33 to swing left and right. At this time, the displacement sensor 321 monitors the output displacement of the actuator by detecting the movement distance of the connecting rod 33. It is connected to the touch screen 12 to display the displacement data in real time.

[0037] Specifically, the output force and stroke test module 30 includes two support rods 33 arranged in parallel, and the second test mechanism 32 includes a splint 323 mounted on the support rod 33, and a protrusion 329 is fixed on one side of the splint 323. The displacement sensor 321 is arranged on one side of the protrusion 329 of the splint 323 and abuts against the protrusion 329, and is used to monitor the displacement distance of the splint 323 during the test (that is, the displacement distance of the connecting rod 33, the output stroke of the actuator guide block).

[0038] During the actual test process, in addition to the no-load condition, the output force and output stroke of the actuator under load also need to be tested. Therefore, the second test mechanism 32 also includes a tension sensor 322 and a load assembly, wherein the load includes a connector 324 mounted on the support rod 33, and a weight plate 325 disposed below the base plate 11. The base plate 11 has an opening and is fixed with a fixed pulley 326. The weight plate 325 is disposed below the opening of the base plate 11 and is connected to one end of the connector 324 via a steel cable through the fixed pulley 326. The other end of the connector 324 is detachably fixed to the splint 323. The tension sensor 322 is disposed between the steel cable and the connector 324 and is connected to the touch screen 12. When a load test is required, the splint 323 is connected and fixed to the connector 324, and different numbers of weights are loaded on the weight plate 325 to apply loads of different forces to the actuator guide block to simulate the working conditions of the actuator under different load conditions. During the test, the tension sensor 322 transmits data to the touch screen 12 in real time, and the touch screen 12 displays the load condition of the actuator guide block and the tension fluctuation curve.

[0039] In one embodiment, the connecting member 324 is an electromagnet, which has high flexibility and does not require any fixing operation. It can be adsorbed on the clamping plate 323 just by being powered on.

[0040] Preferably, the load assembly further includes a second motor 327 fixed on the base plate 11, and a carrier plate 328 connected to the second motor 327. Figure 7 As shown, the weight plate 325 is disposed above the carrier plate 328 and can be supported on the carrier plate 328. When a load test is required, the second motor 327 drives the carrier plate 328 and the weight plate 325 upward. At this time, the load acting on the connecting member 324 temporarily disappears. After the electromagnet is energized and fixed to the clamping plate 323, the second motor 327 reverses and drives the carrier plate 328 downward, separating the carrier plate 328 from the weight plate 325. The weight acts as a load on the actuator guide block.

[0041] Furthermore, to improve the stability of the weights during the load test, multiple vertically arranged limit rods 38 are fixed to the base plate 11. One end of the limit rod 38 is fixed to the base plate 11, and the other end is fixed to a positioning plate 39. The limit rods 38 surround the outer periphery of the carrier plate 328 and the weight plate 325 to prevent the weights from sliding during movement.

[0042] In one embodiment, mounting brackets 14 are provided at each end of the base plate 11. The ends of the support rod 33 are fixed to the mounting brackets 14, and the second motor 327 is fixed to the mounting brackets 14. To enhance stability, a buffer assembly extending toward the connector 324 is provided on the mounting bracket 14. The buffer assembly includes a retractable first buffer rod 36 and a non-retractable second buffer rod 37. The first buffer rod provides a buffer when the connector 324 moves toward the mounting bracket 14, while the second buffer rod prevents the connector 324 from directly contacting the mounting bracket 14 if the first buffer rod 36 fails or the actuator is damaged. Furthermore, the second buffer rod 37 limits the range of movement of the connector 324 toward the mounting bracket 14 to prevent excessive load (weight) from causing the guide block to move excessively, potentially damaging the actuator.

[0043] Since both ends of the clamping plate 323 and the connecting member 324 are sleeved on the support rod 33 and move on the support rod 33, to reduce friction, oilers 35 are respectively provided at the connection points between the two ends of the clamping plate 323 and the support rod 33, and at the connection points between the two ends of the connecting member 324 and the support rod 33, so that oil cans 35 can be injected into the connection points regularly or irregularly for lubrication during the test.

[0044] A second temperature sensor 34 is provided on one side of the second base 31 , with its detection end facing the actuator under test fixed on the second base 31 , for monitoring the temperature of the actuator during the output force and output stroke test.

[0045] The shift actuator test equipment 100 in this embodiment adopts an upper and lower side design, which is separated by a base plate 11. The upper space is used to fix the stall test module 20 and the output force and stroke test module 30, while the lower space is used to place the carrier plate 328, the weight plate 328, the weights, the air source processing components, the electronic control components and the main switch of the equipment, etc.

[0046] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A test device for a gear shift actuator, characterized in that: include: A frame is formed with a receiving space, wherein a bottom plate is provided in the receiving space; A stall test module, mounted on the base plate, for performing a stall test on the shift actuator under test; The output force and stroke test module is installed on the base plate and is used to test the output force and output stroke of the gear shift actuator under test.

2. The test equipment for the shift actuator according to claim 1, characterized in that: The stall test module includes a first base for supporting the shift actuator, and two first test mechanisms arranged on both sides of the first base, and the two first test mechanisms are used to abut and prevent the guide block on the shift actuator from moving from both sides.

3. The test equipment for the shift actuator according to claim 2, characterized in that: The first testing mechanism includes a guide rail fixed on the base plate, a slider installed on the guide rail, and a push rod fixed to the slider and used to abut against the gear shift actuator under test.

4. The test equipment for the shift actuator according to claim 3, characterized in that: A pressure sensor is provided between the push rod and the slider, and / or The first testing mechanism further includes a first motor and a reducer, wherein the first motor drives the slider to move via the reducer, and / or The stall test module further comprises a rotary pressing cylinder fixed on the base plate, wherein the rotary pressing cylinder is arranged on one side of the first base to press the shift actuator under test against the first base, and / or The stall test module further includes a first temperature sensor fixed to one side of the first base and facing the shift actuator under test.

5. The test equipment for the shift actuator according to claim 1, characterized in that: The output force and stroke testing module includes a second base for supporting the shift actuator, and two second testing mechanisms arranged on both sides of the second base. A connecting rod is connected between the two second testing mechanisms, and the connecting rod is connected to the guide block on the shift actuator. Each second testing mechanism includes a displacement sensor for detecting the moving distance of the connecting rod.

6. The test equipment for the shift actuator according to claim 5, characterized in that: The output force and stroke testing module includes two support rods arranged in parallel, the second testing mechanism includes a clamping plate that is sleeved on the support rods and detachably connected, the connecting rod is connected to the two clamping plates, and the displacement sensor is arranged on one side of the clamping plate and abuts against the clamping plate.

7. The test equipment for the shift actuator according to claim 6, characterized in that: The second testing mechanism also includes a load assembly mounted on the support rod, the load assembly includes a connecting piece mounted on the support rod, and a weight plate arranged under the base plate for carrying weights, the connecting piece is connected to the weight plate and is detachably fixed to the splint, and the second testing mechanism also includes a tension sensor arranged between the connecting piece and the weight plate.

8. The test equipment for the shift actuator according to claim 7, characterized in that: The connecting member is an electromagnet, and / or The load assembly further includes a second motor fixed on the bottom plate, and a carrier plate connected to the second motor, the weight plate is supported on the carrier plate, and the second motor is connected to and drives the carrier plate to move up and down.

9. The test equipment for the shift actuator according to claim 5, characterized in that: The output force and stroke test module further includes a second temperature sensor disposed on one side of the second base and facing the shift actuator under test.

10. The test equipment for the shift actuator according to claim 1, characterized in that: The frame is also provided with a touch screen connected to the stall test module, the output force and stroke test module, and the gear shift actuator under test. The touch screen displays and controls the parameters of the stall test module, the output force and stroke test module, and is simultaneously connected to and displays the current and voltage of the gear shift actuator under test.

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