Transmission testing device

Abstract

The invention relates to the technical field of transmission testing, and discloses a transmission testing device which comprises a driving mechanism, a CPCA assembly, a pressure plate and an environment box. The pressure plate and the CPCA assembly are both arranged in the accommodating cavity, displacement information of the CPCA assembly can be transmitted out through the accommodating cavity, a temperature control assembly is arranged in the accommodating cavity, the driving mechanism extends into the accommodating cavity through one side of the environment box and is connected with the pressure plate and the CPCA assembly, and the driving mechanism can drive the pressure plate to rotate relative to the environment box; the CPCA assembly abuts against the pressure plate, the CPCA assembly periodically extrudes the pressure plate, an actual use scene is simulated through the driving mechanism, the pressure plate and the environment box, the CPCA assembly is tested, whole vehicle testing is not needed, and the technical problems that in the prior art, CPCA is installed on a whole vehicle to be tested, different CPCAs need one whole vehicle to be tested, and the testing cost is high are solved. The technical effect of low test cost is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission testing, and particularly to a transmission testing device. Background Art

[0002] CPCA (Central Pneumatic Clutch Actuator) is a key component of an AMT transmission. Its working principle is as follows: CPCA is used to realize the separation and engagement of the clutch. It is installed inside the clutch housing and is concentric with the transmission input shaft. CPCA adopts an electro-pneumatic control scheme, and the shift control unit controls the separation and engagement of the clutch. The clutch displacement sensor can monitor the clutch displacement in real time and feedback the displacement signal to the vehicle control unit, so as to achieve precise control.

[0003] The existing CPCA tests are generally carried out by installing it on a whole vehicle, and different CPCA requires a whole vehicle for testing, resulting in high testing costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a transmission testing device to solve the technical problem that in the prior art, CPCA is installed on a whole vehicle for testing, and different CPCA requires a whole vehicle for testing, resulting in high testing costs.

[0005] To solve the above technical problem, the present invention provides a transmission testing device, including a driving mechanism, a CPCA assembly, a pressure plate, and an environmental chamber; A receiving cavity is provided inside the environmental chamber. The pressure plate and the CPCA assembly are both arranged inside the receiving cavity. The displacement information of the CPCA assembly can be transmitted out through the receiving cavity. A temperature control component is arranged inside the receiving cavity, and the temperature control component is used to control the temperature inside the receiving cavity; The driving mechanism extends into the receiving cavity through one side of the environmental chamber and is connected to the pressure plate and the CPCA assembly. The driving mechanism can drive the pressure plate to rotate relative to the environmental chamber; The CPCA assembly abuts against the pressure plate, and the CPCA assembly periodically presses the pressure plate.

[0006] In an alternative embodiment, the environmental chamber includes a bottom plate, side plates, and a top plate; The bottom plate and the top plate are parallel and spaced apart from each other. There are multiple side plates, and the multiple side plates extend along the circumferential direction of the bottom plate. Both ends of each side plate are respectively connected to the top plate and the bottom plate.

[0007] In an alternative embodiment, a window is provided on the side plate, a transparent member is provided at the window, and the transparent member is connected to the side plate.

[0008] In an alternative embodiment, a through hole is provided on the side plate, the through hole penetrates through the side plate, and the accommodating cavity communicates with the outside through the through hole.

[0009] In an alternative embodiment, a plurality of universal wheels are provided on the side of the bottom plate facing away from the top plate, and the universal wheels are respectively connected to the bottom plate.

[0010] In an alternative embodiment, a bracket is provided in the accommodating cavity, the bracket is connected to the CPCA assembly, and the bracket is used to fix the CPCA assembly.

[0011] In an alternative embodiment, an air inlet is provided on the bracket, the air inlet is connected to the CPCA assembly, and an air pipe passes through the through hole and is connected to the air inlet through a valve; The air pipe can supply air into the air inlet to press the CPCA assembly against the pressure plate.

[0012] In an alternative embodiment, the temperature control component includes an inlet pipe and an outlet pipe, the inlet pipe and the outlet pipe are parallel and spaced apart from each other, the inlet pipe and the outlet pipe are respectively connected to the outer wall of the environmental chamber, and the inlet pipe and the outlet pipe are respectively communicated with the accommodating cavity.

[0013] In an alternative embodiment, the driving mechanism includes a driving motor and a transmission shaft, the output end of the driving motor is connected to the transmission shaft, and the transmission shaft extends into the accommodating cavity and is respectively connected to the pressure plate and the CPCA assembly.

[0014] In an alternative embodiment, a base, a fixing frame, a sleeve and a bearing are further included; The driving motor and the fixing frame are both fixed on the base, the driving motor and the fixing frame are spaced apart, the sleeve and the bearing are both provided on the fixing frame, the bearing is sleeved on the transmission shaft, and the sleeve is sleeved on the bearing.

[0015] A transmission testing device provided by the present invention includes a driving mechanism, a CPCA assembly, a pressure plate, and an environmental chamber. An accommodation cavity is provided inside the environmental chamber. Both the pressure plate and the CPCA assembly are arranged in the accommodation cavity. The displacement information of the CPCA assembly can be transmitted out through the accommodation cavity. A temperature control component is arranged in the accommodation cavity, and the temperature control component is used to control the temperature inside the accommodation cavity. The driving mechanism extends into the accommodation cavity from one side of the environmental chamber and is connected to the pressure plate and the CPCA assembly. The driving mechanism can drive the pressure plate to rotate relative to the environmental chamber. The CPCA assembly abuts against the pressure plate, and the CPCA assembly periodically presses the pressure plate. By means of the driving mechanism, the pressure plate, and the environmental chamber, an actual use scenario is simulated to test the CPCA assembly, eliminating the need for vehicle testing. This solves the technical problem in the prior art that the CPCA is installed on a vehicle for testing, and different CPCAs require a vehicle for testing each, resulting in high testing costs, and achieves the technical effect of low testing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the transmission testing device mentioned in the embodiment of the present invention; Figure 2 It is another schematic structural diagram of the transmission testing device mentioned in the embodiment of the present invention; Figure 3 is Figure 1 a cross-sectional view of.

[0017] In the figure, 1 - driving mechanism; 101 - driving motor; 102 - transmission shaft; 2 - CPCA assembly; 3 - pressure plate; 4 - environmental chamber; 401 - bottom plate; 402 - side plate; 403 - top plate; 5 - window; 6 - through hole; 7 - universal wheel; 8 - bracket; 9 - air inlet; 10 - air inlet pipe; 11 - air outlet pipe; 12 - base; 13 - fixing frame; 14 - sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following examples are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0019] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0020] In the related art, CPCA tests are generally carried out by installing them on a complete vehicle, and different CPCA tests all require a complete vehicle for testing, resulting in high testing costs.

[0021] In view of this, as Figures 1-3 shown, some embodiments of the present invention provide a transmission testing device, including a driving mechanism 1, a CPCA assembly 2, a pressure plate 3, and an environmental chamber 4; an accommodating cavity is provided inside the environmental chamber 4, both the pressure plate 3 and the CPCA assembly 2 are arranged in the accommodating cavity, the displacement information of the CPCA assembly 2 can be transmitted out through the accommodating cavity, a temperature control component is arranged in the accommodating cavity, and the temperature control component is used to control the temperature inside the accommodating cavity; the driving mechanism 1 extends into the accommodating cavity through one side of the environmental chamber 4 and is connected to the pressure plate 3 and the CPCA assembly 2, and the driving mechanism 1 can drive the pressure plate 3 to rotate relative to the environmental chamber 4; the CPCA assembly 2 abuts against the pressure plate 3, and the CPCA assembly 2 periodically presses the pressure plate 3.

[0022] In the above embodiment, the driving mechanism 1 is arranged on one side of the environmental chamber 4, the output end of the driving mechanism 1 passes through the environmental chamber 4 and extends into the accommodating cavity, the end of the driving mechanism 1 extending into the accommodating cavity is respectively connected to the CPCA assembly 2 and the pressure plate 3, the driving mechanism 1 can drive the pressure plate 3 to rotate, and the CPCA assembly 2 can displace along the axis direction of the driving mechanism 1, so that the CPCA assembly 2 can approach and press the pressure plate 3, or the CPCA assembly 2 can be away from the pressure plate 3 under the elastic action of the pressure plate 3, thereby simulating the actual working condition. Further, a displacement sensor can be arranged inside the CPCA assembly 2, and the displacement sensor is used to transmit the displacement distance of the CPCA assembly 2 out of the environmental chamber 4, so as to judge the performance of the CPCA assembly 2, and a temperature control component is arranged in the accommodating cavity, and the temperature control component is used to control the temperature inside the accommodating cavity, so that the CPCA assembly 2 can be applicable to different usage scenarios, and the CPCA assembly 2 can periodically press the pressure plate 3, thereby simulating the real usage scenario.

[0023] A transmission testing device provided by some embodiments of the present invention includes a driving mechanism 1, a CPCA assembly 2, a pressure plate 3, and an environmental chamber 4. An accommodation cavity is provided inside the environmental chamber 4. Both the pressure plate 3 and the CPCA assembly 2 are arranged in the accommodation cavity. The displacement information of the CPCA assembly 2 can be transmitted out through the accommodation cavity. A temperature control component is arranged in the accommodation cavity, and the temperature control component is used to control the temperature inside the accommodation cavity. The driving mechanism 1 extends into the accommodation cavity through one side of the environmental chamber 4 and is connected to the pressure plate 3 and the CPCA assembly 2. The driving mechanism 1 can drive the pressure plate 3 to rotate relative to the environmental chamber 4. The CPCA assembly 2 abuts against the pressure plate 3, and the CPCA assembly 2 periodically squeezes the pressure plate 3. By means of the driving mechanism 1, the pressure plate 3, and the environmental chamber 4, an actual use scenario is simulated to test the CPCA assembly 2. There is no need to use a whole vehicle for testing, solving the technical problem in the prior art that the CPCA is installed on a whole vehicle for testing, and different CPCAs all require a whole vehicle for testing, resulting in high testing costs, and achieving the technical effect of low testing costs.

[0024] In an alternative embodiment, the environmental chamber 4 includes a bottom plate 401, side plates 402, and a top plate 403. The bottom plate 401 and the top plate 403 are parallel to each other and arranged at intervals. A plurality of side plates 402 are provided. The plurality of side plates 402 extend along the circumferential direction of the bottom plate 401. Two ends of each side plate 402 are respectively connected to the top plate 403 and the bottom plate 401.

[0025] In the above embodiment, the bottom plate 401, the side plates 402, and the top plate 403 can all be made of metal materials. The shapes of the bottom plate 401 and the top plate 403 are the same, and both can be square. The bottom plate 401 and the top plate 403 are parallel and arranged at intervals, and the bottom plate 401 and the top plate 403 are aligned. Four side plates 402 can be provided. The four side plates 402 are respectively connected to the bottom plate 401 and the top plate 403, so that the bottom plate 401, the top plate 403, and the side plates 402 can enclose a square. The side plates 402 can be welded to the top plate 403 and the bottom plate 401 respectively, or can be connected together by buckles, so as to enclose the accommodation cavity and simulate the use scenario through a closed environment.

[0026] In an alternative embodiment, a window 5 is provided on the side plate 402, and a transparent member is provided at the window 5. The transparent member is connected to the side plate 402.

[0027] In the above embodiment, the window 5 can be in a long strip shape. The window 5 can penetrate the side plate 402. The window 5 faces the CPCA assembly 2 and the pressure plate 3. A transparent member is connected at the window 5. The transparent member can be made of glass. The transparent member can be connected to the window 5 by means of gluing, so that the operator can observe the CPCA assembly 2 and the pressure plate 3 through the window 5 and the transparent member outside the environmental chamber 4, and thus can observe the dynamics of the test in real time.

[0028] In an alternative embodiment, a through hole 6 is provided on the side plate 402. The through hole 6 penetrates through the side plate 402, and the accommodating cavity communicates with the outside through the through hole 6.

[0029] In the above embodiment, the through hole 6 can be circular. The through hole 6 can penetrate through the side plate 402, and the displacement sensor of the CPCA assembly 2 can be connected to an external display through an electrical signal. Among them, the displacement sensor can be connected to the external display through an electric wire, so that the moving distance of the CPCA assembly 2 can be displayed on the display, and thus the state of the CPCA assembly 2 can be observed.

[0030] In an alternative embodiment, universal wheels 7 are provided on the side of the bottom plate 401 facing away from the top plate 403. A plurality of universal wheels 7 are provided, and the plurality of universal wheels 7 are respectively connected to the bottom plate 401.

[0031] In the above embodiment, four universal wheels 7 can be provided. The four universal wheels 7 are respectively on the side of the bottom plate 401 facing away from the top plate 403. The four universal wheels 7 are arranged in a rectangle, and the four universal wheels 7 are respectively connected to the corners of the bottom plate 401. Thus, through the four universal wheels 7, the environmental chamber 4 can slide more freely.

[0032] In an alternative embodiment, a bracket 8 is provided in the accommodating cavity. The bracket 8 is connected to the CPCA assembly 2, and the bracket 8 is used to fix the CPCA assembly 2.

[0033] In the above embodiment, one side of the bracket 8 can be connected to the side plate 402. The bracket 8 can be connected to the CPCA assembly 2, and the bracket 8 can fix the CPCA assembly 2.

[0034] Among them, the pressure plate 3 can be arranged close to the side plate 402, and the CPCA assembly 2 can be arranged on the side of the pressure plate 3 facing away from the side plate 402. The bracket 8 can be arranged on the side of the CPCA assembly 2 facing away from the pressure plate 3. The bracket 8 is connected to the CPCA assembly 2. At the same time, the bracket 8 can be connected to the side plate 402 through a connecting claw.

[0035] In an alternative embodiment, an air inlet 9 is provided on the bracket 8. The air inlet 9 is connected to the CPCA assembly 2. An air pipe passes through the through hole 6 and is connected to the air inlet 9 through a valve; the air pipe can supply air into the air inlet 9 to press the CPCA assembly 2 against the pressure plate 3.

[0036] In the above embodiment, an air inlet 9 is provided on the bracket 8, and the air inlet 9 can be connected to the CPCA assembly 2 through a pipeline. The air inlet 9 can extend through the air pipe through the through hole 6 on the side plate 402, and the outside can supply air to the CPCA assembly 2 through the air pipe and the air inlet 9. Further, a valve can be provided between the air pipe and the air inlet 9, and the valve can be set to a three-way solenoid valve. The valve can be set to a first state, a second state and a third state. In the first state, the air pipe can supply air to the air inlet 9 through the valve, so that the CPCA assembly 2 compresses the pressure plate 3. In the second state, the valve is closed, and the air pipe is separated from the air inlet 9, so that the CPCA assembly 2 maintains pressure and keeps the CPCA assembly 2 stationary. In the third state, the air pipe cannot supply air to the air inlet 9, and the gas in the CPCA assembly 2 can be discharged through the valve, so that the pressure in the CPCA assembly 2 is relieved, and the pressure plate 3 presses the CPCA assembly 2 under the elastic action, thereby realizing the retreat of the CPCA assembly 2.

[0037] In an optional embodiment, the temperature control component includes an air inlet pipe 10 and an air outlet pipe 11, which are parallel to each other and spaced apart, and are respectively connected to the outer wall of the environmental chamber 4, and are respectively connected to the accommodating cavity.

[0038] In the above embodiment, the air inlet pipe 10 and the air outlet pipe 11 are respectively arranged on the side of the side plate 402 away from the ground, and the air inlet pipe 10 and the air outlet pipe 11 are arranged on the same plane. The air inlet pipe 10 and the air outlet pipe 11 can be at a right angle. The air inlet pipe 10 and the air outlet pipe 11 are vertically arranged on the side plate 402. The air inlet pipe 10 is used to provide gas to the accommodating chamber, and the air outlet pipe 11 is used to discharge the gas in the accommodating chamber. The air inlet pipe 10 controls the temperature in the accommodating chamber by adjusting the temperature of the gas rushing into the accommodating chamber.

[0039] In an optional embodiment, the driving mechanism 1 includes a driving motor 101 and a transmission shaft 102. The output end of the driving motor 101 is connected to the transmission shaft 102. The transmission shaft 102 extends into the accommodating cavity and is respectively connected to the pressure plate 3 and the CPCA assembly 2.

[0040] In the above embodiment, the drive motor 101 can be a stepper motor, the output end of the drive motor 101 can be connected to the transmission shaft 102, the drive motor 101 can be connected to the transmission shaft 102 in the form of a spline, and the side of the transmission shaft 102 away from the drive motor 101 can be connected to the pressure plate 3 and the CPCA assembly 2, the drive motor 101 can drive the pressure plate 3 to move through the transmission shaft 102, and the transmission shaft 102 can be connected to the pressure plate 3 alone, or respectively connected to the pressure plate 3 and the CPCA assembly 2.

[0041] In an alternative embodiment, it further includes a base 12, a fixing frame 13, a sleeve 14 and a bearing; both the driving motor 101 and the fixing frame 13 are fixed on the base 12, the driving motor 101 and the fixing frame 13 are arranged at intervals, both the sleeve 14 and the bearing are arranged on the fixing frame 13, the bearing is sleeved on the transmission shaft 102, and the sleeve 14 is sleeved on the bearing.

[0042] In the above embodiment, the base 12 is horizontally arranged. The base 12 can be made of metal. The base 12 can be connected to the driving motor 101. The driving motor 101 is fixed on the upper surface of the base 12 by bolts. At the same time, the fixing frame 13 can also be fixed on the upper surface of the base 12. The fixing frame 13 can be arranged perpendicular to the axis of the driving motor 101. A through channel is provided on the fixing frame 13. The sleeve 14 is connected in the channel of the fixing frame 13. A bearing is installed in the sleeve 14. The transmission shaft 102 extends into the bearing and is connected. The transmission shaft 102 is slidably connected to the sleeve 14 through the bearing, and the sleeve 14 can be welded to the fixing frame 13 to fix the transmission shaft 102.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A transmission testing device, characterized in that, It includes a driving mechanism, a CPCA assembly, a pressure plate and an environmental chamber; A receiving cavity is provided in the environmental chamber. The pressure plate and the CPCA assembly are both arranged in the receiving cavity. The displacement information of the CPCA assembly can be transmitted out through the receiving cavity. A temperature control component is arranged in the receiving cavity, and the temperature control component is used to control the temperature in the receiving cavity; The driving mechanism extends into the receiving cavity through one side of the environmental chamber and is connected to the pressure plate and the CPCA assembly. The driving mechanism can drive the pressure plate to rotate relative to the environmental chamber; The CPCA assembly abuts against the pressure plate, and the CPCA assembly periodically presses the pressure plate.

2. The transmission testing device according to claim 1, wherein, The environmental chamber includes a bottom plate, side plates and a top plate; The bottom plate and the top plate are parallel to each other and arranged at intervals. There are multiple side plates. The multiple side plates extend along the circumferential direction of the bottom plate. Two ends of each side plate are respectively connected to the top plate and the bottom plate.

3. The transmission testing device according to claim 2, characterized in that, Windows are provided on the side plates, and transparent members are provided at the windows. The transparent members are connected to the side plates.

4. The transmission testing device according to claim 2, wherein, Through holes are provided on the side plates. The through holes penetrate through the side plates. The receiving cavity communicates with the outside through the through holes.

5. The transmission testing device according to claim 2, characterized in that, Multiple universal wheels are provided on the side of the bottom plate facing away from the top plate. The multiple universal wheels are respectively connected to the bottom plate.

6. The transmission testing device according to claim 4, wherein, A bracket is arranged in the receiving cavity. The bracket is connected to the CPCA assembly, and the bracket is used to fix the CPCA assembly.

7. The transmission testing device according to claim 6, wherein, An air inlet is provided on the bracket. The air inlet is connected to the CPCA assembly. An air pipe passes through the through hole and is connected to the air inlet through a valve; The air pipe can supply air into the air inlet to make the CPCA assembly press the pressure plate tightly.

8. The transmission testing device according to claim 1, characterized in that, The temperature control component includes an air inlet pipe and an air outlet pipe. The air inlet pipe and the air outlet pipe are parallel to each other and arranged at intervals. The air inlet pipe and the air outlet pipe are respectively connected to the outer wall of the environmental chamber. The air inlet pipe and the air outlet pipe are respectively communicated with the receiving cavity.

9. The transmission testing device according to claim 1, wherein, The driving mechanism includes a driving motor and a transmission shaft. The output end of the driving motor is connected to the transmission shaft. The transmission shaft extends into the receiving cavity and is respectively connected to the pressure plate and the CPCA assembly.

10. The transmission testing device according to claim 9, wherein, It also includes a base, a fixing frame, a sleeve and a bearing; The driving motor and the fixing frame are both fixed on the base. The driving motor and the fixing frame are arranged at intervals. The sleeve and the bearing are both arranged on the fixing frame. The bearing is sleeved on the transmission shaft, and the sleeve is sleeved on the bearing.

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