Automobile speed change testing device

Abstract

The utility model discloses an automobile speed change testing device, and belongs to the technical field of automobile performance testing. The automobile speed change testing device comprises a mounting platform, a position adjusting mechanism, a load detecting mechanism and the like. A frequency converter is arranged on the mounting platform; a lubricating mechanism is arranged on the mounting platform, and a working bin is arranged in the lubricating mechanism; a lubricating oil storage tank is arranged in the lubricating mechanism; a position adjusting mechanism is arranged at the top end of the mounting platform; a load detection mechanism is arranged on the mounting platform; a speed change mechanism is arranged at the top end of the mounting platform; a power mechanism is arranged at the top end of the mounting platform; a gear shifting mechanism is arranged at the top end of the mounting platform; oil baffles are symmetrically arranged on the two sides of the bottom wall of the working bin. Compared with the prior art, the testing accuracy and universality are improved, the waste degree of lubricating oil is reduced to a certain degree, and the high practicability is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile performance test, especially relates to a car gear shift testing device. BACKGROUND

[0002] The shift performance is the core attention point in the automobile test, and the realization of this function mainly depends on the gearbox of the automobile. The internal design of the gearbox has a synchronizing ring assembly, which can effectively overcome the inertia moment of the engaged part through the torque generated by the conical friction, ensure the synchronous engagement of the meshing parts, and thus realize the stability of gear shifting. As a key component of the gearbox, the performance test of the synchronizing ring assembly is crucial for evaluating the overall performance index of the gearbox and is directly related to the performance of the whole vehicle.

[0003] At present, the automobile gear shift testing device at home and abroad mainly tests the whole gearbox when evaluating the performance of the synchronizing ring assembly to obtain various performance data of the synchronizing ring assembly. Since the existing testing device relies on a specific gearbox as a test object, its versatility is limited. In addition, the lubricating oil that falls on the inner wall of the working chamber of the existing testing device may overflow to the installation platform during work, causing unnecessary waste. Therefore, it is necessary to develop an automobile gear shift testing device of other forms and reduce the degree of lubricating oil waste. UTILITARY MODEL CONTENT

[0004] To solve the defects of the prior art, the automobile gear shift testing device provided by the utility model mainly includes an installation platform, a lubricating mechanism, an auxiliary moving mechanism, a load detection mechanism, a gear shifting mechanism, a power mechanism and a gear shifting mechanism. Under the action of the position adjusting mechanism and the lubricating mechanism, the testing device can test the performance of synchronizing ring assemblies of different models and sizes. At the same time, the oil baffle in the lubricating mechanism can prevent the lubricating oil in the working chamber from overflowing to the installation platform, and the lubricating oil in the working chamber can flow back to the lubricating mechanism through the lubricating oil collecting port, thereby reducing the degree of lubricating oil waste to a certain extent. The utility model has high practicability.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] The automobile gear shift testing device comprises:

[0007] The installation platform is provided with a frequency converter;

[0008] The lubricating mechanism is connected with the installation platform and comprises:

[0009] The working chamber is arranged at the top end of the installation platform, and the working chamber is provided with a lubricating oil collecting port;

[0010] The lubricating oil storage tank is in communication with the lubricating oil collecting port;

[0011] A position adjusting mechanism is arranged at the top end of the mounting platform.

[0012] A load detecting mechanism is arranged on the mounting platform, and the load detecting mechanism is connected with the position adjusting mechanism.

[0013] A speed changing mechanism is arranged at the top end of the mounting platform, and the speed changing mechanism is drivingly connected with the load detecting mechanism.

[0014] A power mechanism is arranged at the top end of the mounting platform, and the power mechanism is drivingly connected with the speed changing mechanism.

[0015] A gear shifting mechanism is arranged at the top end of the mounting platform; when the testing device is working, a synchronizing ring assembly is arranged on the speed changing mechanism, the synchronizing ring assembly is located in the working chamber, one end of the gear shifting mechanism is connected with the synchronizing ring assembly, and the position adjusting mechanism drives the load detecting mechanism to move, so as to adjust the distance between the load detecting mechanism and the power mechanism.

[0016] Among them,

[0017] The bottom wall of the working chamber is symmetrically provided with oil baffle plates on both sides.

[0018] Further, the power mechanism is a driving motor.

[0019] Further, the position adjusting mechanism comprises:

[0020] A first guide plate is arranged at the top end of the mounting platform, and the first guide plate is provided with a first guide rail;

[0021] A first connecting member is slidingly connected with the first guide rail of the first guide plate.

[0022] Further, the position adjusting mechanism further comprises:

[0023] A second guide plate is arranged on one side of the first guide plate, and the second guide plate is provided with a second guide rail;

[0024] A second connecting member is slidingly connected with the second guide rail of the second guide plate.

[0025] Further, the load detecting mechanism comprises:

[0026] A load is connected with the first connecting member;

[0027] A first transmission shaft is connected at one end with the detecting end of the load, the other end of the first transmission shaft is located in the working chamber, and the other end of the first transmission shaft is provided with a first transmission gear assembly.

[0028] a transmission member connected with the outer wall surface of the first transmission shaft, and the transmission member is connected with the second connecting member;

[0029] a second transmission shaft, one end of which is arranged through one side of the transmission member, and the other end of the second transmission shaft is arranged through a second transmission gear assembly and a third transmission gear assembly, and the third transmission gear assembly is in transmission connection with the first transmission gear assembly;

[0030] wherein,

[0031] the first transmission gear assembly, the second transmission gear assembly and the third transmission gear assembly are all located in the working chamber.

[0032] Further, the transmission mechanism comprises:

[0033] a main shaft connected with the transmission end of the power mechanism;

[0034] a main shaft gear assembly located in the working chamber, the main shaft gear assembly is in transmission connection with the main shaft, and the main shaft gear assembly is in transmission connection with the second transmission gear assembly.

[0035] Further, the gear shifting mechanism comprises:

[0036] a cylinder arranged at the top end of the mounting platform;

[0037] a gear shifting execution member arranged at the working end of the cylinder, and the output end of the gear shifting execution member is provided with a displacement sensor; when the test device is in operation, the synchronizing ring assembly is arranged at one side of the main shaft gear assembly, a shift fork is arranged in the synchronizing ring assembly, the shift fork is connected with the output end of the gear shifting execution member, and the gear shifting operation of the synchronizing ring assembly can be realized.

[0038] Further, the lubricating mechanism comprises:

[0039] a base located at the lower side of the mounting platform, and the top end of the base is provided with the lubricating oil storage tank;

[0040] a lubricating oil transmission member for providing components in the working chamber with lubricating oil of different temperatures, the lubricating oil transmission member is arranged at the discharging end of the lubricating oil storage tank, and the discharging end of the lubricating oil transmission member is connected with the mounting platform;

[0041] a lubricating oil spraying member directly or indirectly connected with the discharging end of the lubricating oil transmission member, and the lubricating oil spraying member is arranged on the inner wall of the working chamber.

[0042] A lubricating oil collecting member is connected to one end of the lubricating oil storage tank and the other end of the lubricating oil collecting member is connected to the inner wall of the mounting platform.

[0043] Further, the lubricating mechanism comprises:

[0044] A dustproof plate;

[0045] The dustproof plate is symmetrically arranged on both sides of the working chamber, the bottom end of the dustproof plate is connected to the top end of the oil baffle, one side of the dustproof plate is provided with a movable notch, and the movable notch can provide a movable space for the load detection mechanism.

[0046] Further, the middle part of the bottom wall of the working chamber is provided with the lubricating oil collecting port, and the height of the middle part of the bottom wall of the working chamber is lower than the height of both ends of the bottom wall of the working chamber.

[0047] The utility model has the advantages of:

[0048] The automobile gear shifting test device provided by the utility model is provided with a gear shifting mechanism and a lubricating mechanism, can directly test a synchronous ring assembly instead of a gear box, and can simulate the gear box to adjust the speed and lubricate the synchronous ring; in addition, under the action of the position adjusting mechanism, the distance between the load detection mechanism and the power mechanism can be adjusted according to the type and size of the current synchronous ring assembly, thereby improving the universality of the test device; the test device is provided with a gear shifting mechanism, so that the synchronous ring assembly can realize gear shifting operation; in this process, the load detection mechanism can accurately detect the performance data of the current synchronous ring assembly; the test device is provided with an oil baffle, so that the lubricating oil in the working chamber can be prevented from overflowing to the mounting platform, and the lubricating oil can flow back to the lubricating mechanism through the lubricating oil collecting port in the working chamber. Compared with the prior art, the utility model improves the accuracy and universality of the test, reduces the waste degree of lubricating oil to a certain extent, and has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 It is a general structure schematic view of the utility model;

[0050] Figure 2 It is another view of the utility model; Figure 1

[0051] Figure 3 It is a front view structure schematic view of the working chamber inside the utility model.

[0052] Reference signs:

[0053] 1, support mechanism; 11, support seat; 12, support column;

[0054] 2, mounting platform;​

[0055] 3. Position adjusting mechanism; 31. First guide plate; 32. First connecting member; 33. Second guide plate; 34. Second connecting member;

[0056] 4. Load detecting mechanism; 41. Load; 42. First transmission shaft; 43. Transmission member; 44. Second transmission shaft;

[0057] 5. Main shaft;

[0058] 6. Cylinder;

[0059] 7. Lubricating mechanism; 71. Base; 72. Lubricating oil storage tank; 73. Lubricating oil transmission member; 74. Working chamber; 741. Oil baffle; 742. Lubricating oil collecting port; 75. Lubricating oil spraying member; 76. Lubricating oil collecting member; 77. Dustproof plate;

[0060] 8. Frequency converter;

[0061] 9. Control panel;

[0062] 10. Power mechanism. DETAILED DESCRIPTION

[0063] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are examples for explaining the present application and should not be construed as limiting the present application.

[0064] Embodiment 1

[0065] As shown in the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , and the accompanying drawings Figure 3The embodiment discloses a vehicle gear shifting testing device for testing the gear shifting performance of a vehicle, which mainly comprises a mounting platform 2, a position adjusting mechanism 3, a load detecting mechanism 4, a power mechanism 10, a gear shifting mechanism, a gear shifting mechanism and a lubricating mechanism 7. In use, a synchronous ring assembly (not shown in the figure) to be tested is mounted on the gear shifting mechanism under the action of the position adjusting mechanism 3, and the load detecting mechanism 4 is moved to be in transmission connection with the gear shifting mechanism, so that the performance data in the synchronous ring are transmitted to the load detecting mechanism 4. Then, the lubricating mechanism 7 injects lubricating oil of a predetermined temperature into the inside of a working chamber 74 to simulate the working environment of the gear box. In this process, the testing work of synchronous ring assemblies of different types and sizes can be realized. During the testing, there is usually excess lubricating oil at the transmission connection position of the load detecting mechanism 4 and the gear shifting mechanism, which will fall into the working chamber 74. At this time, the oil baffle 741 can block the lubricating oil in the working chamber 74. Under the action of the oil baffle 741, the lubricating oil cannot splash out of the working chamber 74 to the mounting platform 2. At the same time, the lubricating oil can flow back to the lubricating mechanism 7 through the working chamber 74 and a lubricating oil collecting opening 742. Then, the power mechanism is adjusted to a required target rotating speed. Usually, a shift fork (not shown in the figure) is arranged on the synchronous ring assembly. During the testing, the gear shifting mechanism applies a set gear shifting force to shift the shift fork on the synchronous ring assembly to one side, and the gear shifting force corresponds to the gear position to be replaced at present. If the gear position to be replaced at present is the first gear, and the gear shifting force of the corresponding size is provided, at this time, the load detecting mechanism 4 can obtain the performance parameters of the rotating speed, the torque and the torque speed of the synchronous ring assembly through the transmission connection with the gear shifting mechanism. Then, the performance parameters are compared with the standard parameters of the corresponding gear position. If the performance parameters are equal to the standard parameters, the gear shifting work is successfully completed. At the same time, the testing work of the gear shifting performance of the vehicle is also completed.

[0066] The specific structure of the testing device is as follows: it comprises a mounting platform 2, wherein a frequency converter 8 is arranged on the mounting platform 2; a lubricating mechanism 7 is arranged on the mounting platform 2, and a working bin 74 is arranged in the lubricating mechanism 7, the working bin 74 is arranged at the top end of the mounting platform 2, and a lubricating oil collecting opening 742 is formed in the working bin 74; a lubricating oil storage tank 72 is arranged in the lubricating mechanism 7, and the lubricating oil storage tank 72 is in communication with the lubricating oil collecting opening 742; a position adjusting mechanism 3 is arranged at the top end of the mounting platform 2; a load detecting mechanism 4 is arranged on the mounting platform 2, and the load detecting mechanism 4 is connected with the position adjusting mechanism 3; a speed changing mechanism is arranged at the top end of the mounting platform 2, and the speed changing mechanism is drivingly connected with the load detecting mechanism 4; a power mechanism 10 is arranged at the top end of the mounting platform 2, and the power mechanism 10 is drivingly connected with the speed changing mechanism; a gear shifting mechanism is arranged at the top end of the mounting platform 2; and oil baffle plates 741 are symmetrically arranged at the two sides of the bottom wall of the working bin 74. Compared with the prior art, the testing accuracy and universality are improved, the waste degree of lubricating oil is reduced to a certain extent, and the testing device has high practicability.

[0067] In a specific application scenario, as shown in the accompanying drawings, Figure 1 four supporting mechanisms 1 are arranged in the testing device; a supporting seat 11 is arranged in each supporting mechanism 1, and a support column 12 is arranged at the top end of the supporting seat 11; a mounting platform 2 is arranged at the top end of the support column 12, and the top end of the mounting platform 2 is divided into a first part (not marked in the drawing) and a second part (not marked in the drawing); the first part is located at the front side of the mounting platform 2, and the second part is located at the rear side of the mounting platform 2, and the height of the first part is lower than the height of the second part; in addition, the position adjusting mechanism 3, the load detecting mechanism 4, the power mechanism 10, the speed changing mechanism and the working bin 74 are located in the first part of the mounting platform 2, the frequency converter 8 and the gear shifting mechanism (not shown in the drawing) are located in the second part of the mounting platform 2, the frequency converter 8 can adjust the voltage provided by the power source to the power mechanism 10 to change the rotating speed of the power mechanism 10 transmitted to the speed changing mechanism, so as to provide a testing rotating speed corresponding to the gear position for the synchronous ring assembly; and part of the structure of the lubricating mechanism 7 is located below the middle part of the mounting platform 2.

[0068] In a specific application scenario, the power mechanism 10 can be a driving motor, and the driving end of the driving motor is drivingly connected with the left end of the speed changing mechanism, as shown in the accompanying drawings, Figure 1 wherein the driving motor can provide a more stable testing rotating speed for the speed changing mechanism.

[0069] In a specific application scenario, as shown in the accompanying drawings, Figure 1As shown, the position adjusting mechanism 3 mainly comprises a first guide plate 31 and a first connecting member 32; the first guide plate 31 is arranged at the top end of the mounting platform 2, and the upper side of the first guide plate 31 is provided with a first guide rail (not marked in the figure); the sliding end of the first guide plate 31 is provided with the first connecting member 32, and the bottom end of the first connecting member 32 is provided with a first sliding block (not shown in the figure), which is in sliding connection with the first sliding rail.

[0070] Further, the position adjusting mechanism 3 further comprises a second guide plate 33 and a second connecting member 34; the second guide plate 33 is located at the right side of the first guide plate 31, and the upper side of the second guide plate 33 is provided with a second guide rail (not marked in the figure); the sliding end of the second guide plate 33 is provided with the second connecting member 34, and the bottom end of the second connecting member 34 is provided with a second sliding block (not shown in the figure), which is in sliding connection with the second sliding rail; the position adjusting mechanism 3 is a prior art, which will not be described here.

[0071] In a specific application scenario, as shown in the accompanying drawings, Figure 1As shown, the load detection mechanism 4 comprises a load 41, a first transmission shaft 42, a transmission member 43 and a second transmission shaft 44; the bottom end of the load 41 is connected with the top end of the first connecting member 32; the output end of the load 41 is provided with the first transmission shaft 42, the right end of which is located inside the working bin 74, and the outer wall of the first transmission shaft 42 is provided with a first transmission gear assembly (not shown in the figure); the outer wall of the first transmission shaft 42 is connected with the inner wall of the transmission member 43, the right end of the first transmission shaft 42 passes through the left side of the transmission member 43, and the bottom end of the transmission member 43 is connected with the aforementioned second connecting member 34; the right side of the transmission member 43 is provided with the second transmission shaft 44, the right end of which is located inside the working bin 74, and the outer wall of the second transmission shaft 44 is provided with a second transmission gear assembly (not shown in the figure) and a third transmission gear assembly (not shown in the figure), the third transmission gear assembly is in transmission connection with the first transmission gear assembly, and the second transmission gear assembly is in transmission connection with the speed change mechanism; wherein the first transmission gear assembly, the second transmission gear assembly, the third transmission gear assembly and the transmission member 43 are all prior art, and will not be described here; in use, the rotation speed obtained by the synchronous ring assembly can be transmitted to the second transmission shaft 44 through the second transmission gear assembly, and the second transmission shaft 44 transmits the rotation speed to the load 41 through the third transmission gear assembly, the first transmission gear assembly, the transmission member 43; usually, the load 41 is integrally provided with a torque sensor (not shown in the figure), a torque speed sensor (not shown in the figure) and a rotation speed sensor (not shown in the figure), which can generate torque data, torque speed data and rotation speed data of the current synchronous ring assembly after analyzing and processing the aforementioned transmitted rotation speed; in this process, the load 41 can comprehensively consider the loss generated in the aforementioned transmission process, and then obtain the final performance parameter; then, the performance parameter is compared with the standard parameter to obtain the test result of the current test; the load 41 is prior art, and will not be described here.

[0072] It should be noted that every certain period of time, the staff needs to manually add lubricating oil to the connection between the transmission member 43 and the first transmission shaft 42, and the connection between the transmission member 43 and the second transmission shaft 44, in order to maintain the normal work of the test device.

[0073] In a specific application scenario, as shown in the accompanying drawings, Figure 1As shown, the gear shifting mechanism mainly comprises a main shaft 5 and a main shaft gear assembly (not shown in the figure); the left end of the main shaft 5 is in driving connection with the driving motor, and the driving end of the main shaft 5 is located inside the working chamber 74; the driving end of the main shaft 5 is provided with the main shaft gear assembly, and the side of the main shaft gear assembly away from the driving motor is provided with a synchronous ring assembly, which is arranged on the outer circumferential surface of the main shaft 5; generally, the synchronous ring assembly is provided with a shift fork for assisting in the gear shifting operation; the synchronous ring assembly, the shift fork and the main shaft gear assembly are all prior art, and will not be described here.

[0074] In a specific application scenario, as shown in the accompanying drawings Figure 1 As shown, the gear shifting mechanism mainly comprises a cylinder 6 and a gear shifting execution member (not shown in the figure); the cylinder 6 is arranged on the front side of the second part of the mounting platform 2; the working end of the cylinder 6 is provided with the gear shifting execution member (not shown in the figure). In use, the output end of the gear shifting execution member is located on the side wall of the shift fork, and the cylinder 6 can drive the gear shifting execution member to move left and right along its working direction, and the gear shifting execution member can drive the shift fork to adjust the position, so as to make the second transmission gear assembly and the main shaft transmission gear assembly in different gear transmission connection, thereby realizing the gear shifting operation of the synchronous ring assembly; the output end of the gear shifting execution member is generally provided with a displacement sensor (not shown in the figure), which can accurately detect the distance of the shift fork driven by the gear shifting execution member, thereby realizing accurate gear shifting operation; the cylinder 6, the gear shifting execution member and the displacement sensor are all prior art, and will not be described here.

[0075] In a specific application scenario, the inside of the mounting platform 2 and the working chamber 74 are both provided with a transmission channel (not shown in the figure) for conveying and collecting lubricating oil, and the transmission channel for collecting lubricating oil in the mounting platform 2, the transmission channel in the working chamber 74 and the lubricating oil collecting port 742 are in communication with each other.

[0076] In a specific application scenario, as shown in the accompanying drawings Figure 1 , the accompanying drawings Figure 2 and the accompanying drawings Figure 3As shown, the lubricating mechanism 7 comprises a base 71, a lubricating oil storage tank 72, a lubricating oil conveying member 73, a working chamber 74, a lubricating oil spraying member 75, and a lubricating oil collecting member 76, etc. The base 71 is located at the side of the support base 11. The top end of the base 71 is provided with the lubricating oil storage tank 72. The discharge end of the lubricating oil storage tank 72 is provided with the lubricating oil conveying member 73. The number of the lubricating oil conveying member 73 is generally seven, corresponding to the seven gears of the automobile. Because the temperature of the lubricating oil required by each gear is different, such a design is to obtain more accurate test data. The lubricating oil conveying member 73 is generally composed of a first lubricating oil pump (not marked in the figure) and a first lubricating oil pipe (not marked in the figure). Specifically, the first lubricating oil pump is arranged at the discharge end of the first lubricating oil storage tank 72. The discharge end of the first lubricating oil pump is provided with the first lubricating oil pipe. Generally, the inside of each first lubricating oil pipe is provided with a temperature detecting member (not shown in the figure) and a temperature heating member (not shown in the figure). The outer wall of the first lubricating oil pipe is connected with the inner wall of the transmission channel of the mounting platform 2. Such a design can provide lubricating oil with different temperatures according to the current needs of the staff. The discharge end of the lubricating oil conveying member 73 is provided with the lubricating oil spraying member 75. The lubricating oil spraying member 75 is located at the top of the inner wall of the working chamber 74. The feeding end of the lubricating oil spraying member 75 is connected with the discharge end of the transmission channel of the working chamber 74. The spraying end of the lubricating oil spraying member 75 is located at the upper side of the first transmission gear assembly, the second transmission gear assembly, the third transmission gear assembly, and the main shaft gear assembly. In addition, when the load detecting mechanism 4 is relatively displaced with respect to the mounting platform 2, the first transmission gear assembly, the second transmission gear assembly, the third transmission gear assembly, and the main shaft gear assembly will not collide with the lubricating oil spraying member 75. Similarly, when the load detecting mechanism 4 is relatively displaced with respect to the mounting platform 2, the first transmission gear assembly, the second transmission gear assembly, the third transmission gear assembly, and the main shaft gear assembly will not collide with the inner wall of the working chamber 74. The feeding end of the lubricating oil storage tank 72 is provided with the lubricating oil collecting member 76. The lubricating oil collecting member 76 is generally composed of a second lubricating oil pipe (not marked in the figure) and a second lubricating oil pump (not marked in the figure). Specifically, the outer wall of the second lubricating oil pipe is connected with the inner wall of the transmission channel of the mounting platform 2. The feeding end of the second lubricating oil pipe is communicated with the discharge end of the lubricating oil collecting port 742. The discharge end of the second lubricating oil pipe is provided with the second lubricating oil pump. The second lubricating oil pump is arranged at the feeding end of the lubricating oil storage tank 72.

[0077] Further, as shown in the accompanying drawings Figure 3 The lubricating oil collecting port 742 is opened in the middle of the bottom wall of the working chamber 74. The height of the middle of the bottom wall of the working chamber 74 is lower than the height of the two ends of the bottom wall of the working chamber 74. Such a design can make the excess lubricating oil in the working chamber 74 flow back to the lubricating oil storage tank 72 more smoothly.

[0078] In order to realize the intelligent operation of the test device, a control panel 9 is arranged on the installation platform 2, which is electrically connected with the aforementioned position adjusting mechanism 3, the speed changing mechanism, the gear shifting mechanism, the lubricating mechanism 7, the frequency converter 8 and the driving motor, and a screen and buttons are arranged on the control panel 9; the staff can quickly set the control parameters for testing the variable speed performance of the automobile according to the indication of the screen and then press the buttons on the control panel 9, so that the use experience of the user is improved to a certain extent.

[0079] Embodiment 2

[0080] As shown in the accompanying Figure 1 and the accompanying Figure 2 , the embodiment discloses an automobile variable speed test device, which is used for enhancing the working performance of the aforementioned embodiment, in addition to the components in the aforementioned embodiment 1, a dustproof plate 77 is further included, which can reduce the probability of dust from the outside entering the working bin 74, so as to enhance the working performance of the aforementioned embodiment 1.

[0081] In a specific application scenario, as shown in the accompanying Figure 1 , the dustproof plates 77 are symmetrically arranged on the left and right sides of the working bin 74, and the bottom end of the dustproof plate 77 is connected with the top end of the oil baffle 741; generally, a movable slot (not shown in the figure) is arranged on the left side of the dustproof plate 77, which can provide a front and rear movement space for the aforementioned load detection mechanism 4; in use, the dustproof plate 77 on the right side of the working bin 74 is first removed; then, the synchronous ring assembly is arranged on the driving end of the main shaft 5; then, the dustproof plate 77 on the right side of the working bin 74 is arranged, which can play a dustproof effect to a certain extent.

[0082] Those skilled in the art can understand that, unless specifically stated, the singular forms "a", "an" and "the" used in the present application also include the plural forms. It should be further understood that the word "comprising" used in the present application means that the features, integers, steps, operations, elements and / or components exist, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or their combinations. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there can be an intermediate element. In addition, "connected" or "coupled" used herein can include wireless connection or wireless coupling. The word "and / or" used herein includes all or any single unit and all combinations of the associated listed items.

Claims

1. An automotive transmission testing apparatus, characterized by, The utility model relates to a test device for variable frequency drive, which comprises: a mounting platform (2) provided with a variable frequency drive (8) thereon; a lubricating mechanism (7) connected with the mounting platform (2) and comprising: a working chamber (74) provided at the top end of the mounting platform (2) and provided with a lubricating oil collecting port (742) on the working chamber (74); a lubricating oil storage tank (72) in communication with the lubricating oil collecting port (742); a position adjusting mechanism (3) provided at the top end of the mounting platform (2); a load detecting mechanism (4) provided on the mounting platform (2) and connected with the position adjusting mechanism (3); a variable speed mechanism provided at the top end of the mounting platform (2) and drivingly connected with the load detecting mechanism (4); a power mechanism (10) provided at the top end of the mounting platform (2) and drivingly connected with the variable speed mechanism; a gear shifting mechanism provided at the top end of the mounting platform (2); when the test device is in operation, a synchronizing ring assembly is mounted on the variable speed mechanism, the synchronizing ring assembly is located in the working chamber (74), one end of the gear shifting mechanism is connected with the synchronizing ring assembly, and the position adjusting mechanism (3) drives the load detecting mechanism (4) to move so as to adjust the distance between the load detecting mechanism (4) and the power mechanism (10). The bottom wall of the working chamber (74) is symmetrically provided with oil baffle plates (741) on both sides. The power mechanism (10) is a driving motor.

2. The test device of claim 1, wherein, The position adjusting mechanism (3) comprises:

3. The test device of claim 1, wherein, a first guide plate (31) provided at the top end of the mounting platform (2) and provided with a first guide rail thereon; a first connecting member (32) slidingly connected with the first guide rail of the first guide plate (31). The position adjusting mechanism (3) further comprises:

4. The test device of claim 3, wherein, a second guide plate (33) provided at one side of the first guide plate (31) and provided with a second guide rail thereon; a second connecting member (34) slidingly connected with the second guide rail of the second guide plate (33). The load detecting mechanism (4) comprises:

5. The test device of claim 4, wherein, a load (41) connected with the first connecting member (32); a first transmission shaft (42) having one end connected with the detection end of the load (41), the other end of the first transmission shaft (42) located in the working chamber (74), and the other end of the first transmission shaft (42) provided with a first transmission gear assembly; a transmission member (43) connected with the outer wall surface of the first transmission shaft (42) and connected with the second connecting member (34); a second transmission shaft (44) having one end penetrating one side of the transmission member (43), the other end of the second transmission shaft (44) provided with a second transmission gear assembly and a third transmission gear assembly, and the third transmission gear assembly drivingly connected with the first transmission gear assembly. The bottom wall of the working chamber (74) is symmetrically provided with oil baffle plates (741) on both sides. ​ The first transmission gear assembly, the second transmission gear assembly and the third transmission gear assembly are located in the working chamber (74).

6. The test device of claim 5, wherein, The transmission mechanism comprises: A main shaft (5) connected with a transmission end of the power mechanism (10); A main shaft gear assembly located in the working chamber (74), the main shaft gear assembly being in transmission connection with the main shaft (5), and the main shaft gear assembly being in transmission connection with the second transmission gear assembly.

7. The test device of claim 6, wherein, The gear shifting mechanism comprises: A cylinder (6) arranged at the top end of the mounting platform (2); A gear shifting execution member arranged at the working end of the cylinder (6), and an output end of the gear shifting execution member being provided with a displacement sensor; in operation, the synchronization ring assembly is arranged at one side of the main shaft gear assembly, a shift fork is arranged in the synchronization ring assembly, the shift fork is connected with the output end of the gear shifting execution member, and the gear shifting operation of the synchronization ring assembly can be realized.

8. The test device of claim 1, wherein, The lubricating mechanism (7) comprises: A base (71) located at the lower side of the mounting platform (2), and the base (71) being provided at the top end with a lubricating oil storage tank (72); A lubricating oil transmission member (73) for providing components in the working chamber (74) with lubricating oil of different temperatures, the lubricating oil transmission member (73) being arranged at the discharge end of the lubricating oil storage tank (72), and the discharge end of the lubricating oil transmission member (73) being connected with the mounting platform (2); A lubricating oil spraying member (75) directly or indirectly connected with the discharge end of the lubricating oil transmission member (73), the lubricating oil spraying member (75) being arranged on the inner wall of the working chamber (74); A lubricating oil collecting member (76), one end of the lubricating oil collecting member (76) being connected with the feed end of the lubricating oil storage tank (72), and the other end of the lubricating oil collecting member (76) being connected with the inner wall of the mounting platform (2).

9. The test device of claim 1, wherein, The lubricating mechanism (7) comprises: A dustproof plate (77); The dustproof plates (77) are symmetrically arranged at two sides of the working chamber (74), the bottom end of the dustproof plate (77) being connected with the top end of the oil baffle (741), and one side of the dustproof plate (77) being provided with a movable slot, which can provide a movable space for the load detection mechanism (4).

10. The test device of claim 1, wherein, The middle part of the bottom wall of the working chamber (74) is provided with the lubricating oil collecting opening (742), and the height of the middle part of the bottom wall of the working chamber (74) is lower than the height of the two ends of the bottom wall of the working chamber (74).

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