A control assembly single-unit gear selection and shifting life test bench

Abstract

The utility model discloses a single-body gear selection and shifting life test bench for an operating assembly, which belongs to the technical field of transmission performance testing; it comprises a test platform; an operating bracket is installed on the test platform, and an operating assembly is fixed on the operating bracket; the input end of the operating assembly is connected to an actuating cylinder through a limiting mechanism; a first loading cylinder and a second loading cylinder are installed on both sides of the output end of the operating assembly. The input end is driven by an actuating cylinder, and a limiting mechanism is used to ensure that the input end of each forward and backward gear shift can stay in an accurate position; two loading cylinders are used to simulate the resistance at the shift head during gear shifting by adjusting the air pressure value in the load direction. It can effectively reduce the cost of single-body operating tests, quickly and accurately verify operating improvement plans; reduce other interference factors during the test, and avoid the impact of other component failures on the sample; it is easy to disassemble and assemble, and the test can be started by simply replacing the operating connection transition and adjusting the position of the shift cylinder, saving a lot of test time and bench costs.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission performance testing, and relates to a control assembly monomer gear selection and shifting life test bench. Background Art

[0002] The transmission control is an important component of the manual transmission. Through the external gear selector and shift rocker arm and the gear shift operating lever system, the gear selector and shift functions can be realized. At present, with the continuous improvement of drivers' requirements for gear shifting comfort and the increase of faulty parts returned after sales, the control assembly has been improved and upgraded, and various components have been optimized. The improvement plan needs to be verified by bench testing before it can be put on the market.

[0003] The control assembly test verification is usually carried out on the transmission, and the synchronizer test bench is used for gear shifting test. Currently, there are the following disadvantages: ① It occupies precious synchronizer test bench resources, making it difficult to verify the improvement plan in a timely and effective manner; ② There are many uncontrollable factors when the control assembly is installed in the whole box for testing. For example, failure of the transmission synchronizer will affect the verification result of the control assembly; ③ It consumes a huge amount of resources, including the cost of using the synchronizer bench, transmission loss, etc.; ④ The installation is time-consuming and labor-intensive. The improved control assembly needs to be installed in the whole box first, and then installed on the synchronizer bench. It usually takes two workers 1 to 2 days to install it. Utility Model Content

[0004] The utility model aims to provide a control assembly single-body gear selection and shift life test bench to solve the technical problems of waste of resources and time and inaccurate test results when using a synchronizer test bench for gear selection and shift tests in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a single-body gear selection and shifting life test bench for an operating assembly, comprising a test platform; an operating bracket is installed on the test platform, and an operating assembly is fixed on the operating bracket; the input end of the operating assembly is connected to an actuating cylinder through a limiting mechanism; a first loading cylinder and a second loading cylinder are respectively installed on both sides of the output end of the operating assembly.

[0007] Furthermore, a guide mechanism is provided in the operating bracket; the upper end of the guide mechanism is connected to the shift head of the operating assembly, and is used to limit the circular motion of the shift head when shifting gears to linear motion between the first loading cylinder and the second loading cylinder; the two sides of the guide mechanism are respectively abutted against the cylinder rods of the first loading cylinder and the second loading cylinder.

[0008] Furthermore, the guide mechanism includes a slide rail, which is fixed on the test platform and a slider is installed on the slide rail; a groove is opened at the upper end of the slider, and the groove is used to limit the dial head of the operating assembly; the two sides of the slider are respectively abutted against the cylinder rods of the first loading cylinder and the second loading cylinder.

[0009] Furthermore, the limiting mechanism includes two vertically arranged limiting plates; the cylinder rod of the actuating cylinder passes through the two limiting plates; a limiting plate is fixed on the cylinder rod of the actuating cylinder; and the limiting plate is located between the two limiting plates.

[0010] Furthermore, the limiting plate is circular with a hole in the middle; the limiting plate is sleeved on the cylinder rod of the actuating cylinder.

[0011] Furthermore, the control bracket and the control assembly are fixed by a cover plate.

[0012] Furthermore, the cover plate and the operating bracket are detachably connected via bolts.

[0013] Furthermore, a gear selection bracket is installed on the test platform; the gear selection bracket is located on one side of the operating assembly, and the gear selection bracket is used to install the actuating cylinder when performing a gear selection test.

[0014] Furthermore, the test platform is provided with a plurality of mounting holes for adjusting the mounting positions of the components.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a single-unit gear selection and shifting life test bench for a control assembly. The input end is driven by an actuating cylinder, and a limit mechanism is used to ensure that the input end of each forward and backward gear shift can stay in the correct position; two loading cylinders are used to simulate the resistance at the shift head during gear shifting by adjusting the air pressure value in the load direction. The utility model can effectively reduce the cost of single-unit control testing, quickly and accurately verify the control improvement plan; reduce other interference factors during the test, and avoid the impact of other component failures on the sample; it is easy to disassemble and assemble, and the test can be started by simply replacing the control connection transition and adjusting the position of the shift cylinder, saving a lot of test time and bench costs.

[0017] Furthermore, the shift head of the operating assembly of the utility model is arranged in the slider, which can limit the original arc movement of the shift head when shifting gears to a linear sliding with a single degree of freedom. At the same time, it can also simulate the force condition at the shift head when the operating assembly 4 is installed on the transmission; when loading, the operating shift head does not directly contact the two loading cylinder rods, but indirectly contacts them through the slider, which not only protects the shift head, but also ensures that the cylinder is only subjected to axial force.

[0018] Furthermore, when the utility model performs a gear selection test, it is only necessary to install the actuating cylinder on the gear selection bracket and adjust it to a suitable position so as to quickly perform the gear selection life test; the operation is convenient and cost-saving.

[0019] Furthermore, the test platform of the utility model is provided with a plurality of mounting holes, so that the mounting positions of various components can be conveniently adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model in the gear shift test mode;

[0022] Figure 2 It is a structural schematic diagram of the utility model in the gear selection test mode;

[0023] Figure 3 It is a structural schematic diagram of the test platform of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the guide mechanism of the utility model. Figure 4 a is the main view, Figure 4 b is a side view;

[0025] Figure 5 It is a structural schematic diagram of the limiting mechanism of the utility model. Figure 5 a is the main view, Figure 5 b is a side view;

[0026] Figure 6 This is a schematic diagram of the structure of the limiting piece of the utility model. Figure 6 a is the main view, Figure 6 b is a side view;

[0027] Figure 7 This is a schematic diagram of the structure of the gear selection bracket of the utility model. Figure 7 a is the main view, Figure 7 b is a side view.

[0028] Among them: 1-actuating cylinder; 2-limiting plate; 3-limiting mechanism; 4-operating assembly; 5-first loading cylinder; 6-operating bracket; 7-guiding mechanism; 8-second loading cylinder; 9-gear selection bracket; 10-test platform; 11-cover plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] The utility model is further described in detail below with reference to the accompanying drawings:

[0036] See also Figure 1 The utility model discloses a single-body gear selection and shifting life test bench for an operating assembly, including a test platform 10; an operating bracket 6 is installed on the test platform 10, and an operating assembly 4 is fixed on the operating bracket 6; the input end of the operating assembly 4 is connected to the actuating cylinder 1 through a limiting mechanism 3; the first loading cylinder 5 and the second loading cylinder 8 are respectively installed on both sides of the output end of the operating assembly 4. The input end of the operating assembly 4 of the utility model is driven by the actuating cylinder 1, and the limiting mechanism 3 is used to ensure that the input end of each forward and backward gear shift can stay in the correct position; two loading cylinders are used to simulate the resistance at the shift head during gear shifting by adjusting the air pressure value in the load direction. The utility model can effectively reduce the cost of single-body operating tests, quickly and accurately verify the operating improvement plan; reduce other interference factors during the test, and avoid the impact of other component failures on the sample; it is easy to disassemble and assemble, and the test can be started by simply replacing the operating connection transition and adjusting the position of the shift cylinder, saving a lot of test time and bench costs.

[0037] In a feasible embodiment of the utility model, a guide mechanism 7 is arranged in the operating bracket 6; the upper end of the guide mechanism 7 is connected to the shift head of the operating assembly 4, and is used to limit the circular motion of the shift head when shifting gears to the linear motion between the first loading cylinder 5 and the second loading cylinder 8, and can also simulate the force condition at the shift head when the operating assembly 4 is installed on the transmission; the two sides of the guide mechanism 7 are respectively abutted against the cylinder rods of the first loading cylinder 5 and the second loading cylinder 8.

[0038] In a feasible implementation of the present invention, see Figure 4 a and Figure 4 b. The guide mechanism 7 includes a slide rail, which is fixed on the test platform 10 and on which a slider is installed; a groove is provided on the upper end of the slider, which is used to limit the position of the dial head of the operating assembly 4; the two sides of the slider are respectively in contact with the cylinder rods of the first loading cylinder 5 and the second loading cylinder 8; when loading, the operating dial head does not directly contact the two loading cylinder rods, but indirectly contacts them through the slider, which not only protects the dial head, but also ensures that the cylinder is only subjected to axial force.

[0039] In a feasible implementation of the present invention, see Figure 5 a and Figure 5 b. The limiting mechanism 3 includes two vertically arranged limiting plates; the cylinder rod of the actuating cylinder 1 passes through the two limiting plates; a limiting plate 2 is fixed on the cylinder rod of the actuating cylinder 1; the limiting plate 2 is located between the two limiting plates. Figure 6 a and Figure 6 b. The limiting plate 2 is circular with a hole in the middle; the limiting plate 2 is sleeved on the cylinder rod of the actuating cylinder 1.

[0040] In a feasible implementation manner of the present invention, the control bracket 6 and the control assembly 4 are fixed by a cover plate 11; the cover plate 11 and the control bracket 6 are detachably connected by bolts, and a variety of different models of control assemblies can be adapted by quickly replacing the cover plate 11 on the control bracket 6.

[0041] In a feasible implementation mode of the present invention, as Figure 2 As shown, the test platform 10 is also equipped with a gear selection bracket 9. Figure 7 a and Figure 7 b; the gear selection bracket 9 is located on one side of the operating assembly 4. The gear selection bracket 9 is used to install the actuating cylinder 1 when performing the gear selection test. When performing the gear selection test, the actuating cylinder 1 is installed on the gear selection bracket 9 and adjusted to a suitable position to quickly perform the gear selection life test. Figure 3 A plurality of mounting holes are provided on the test platform 10 for facilitating adjustment of the mounting positions of the components.

[0042] The assembly process of the utility model is as follows:

[0043] Shift mode:

[0044] (1) Install the control bracket 6 and the slide rail slider on the test platform 10, and then install the control assembly 4 on the control bracket 6, ensuring that the control shift knob is in the groove of the slider during installation and there is enough space for the shift action;

[0045] (2) Install the actuating cylinder 1 and the limiting mechanism 3 on the test platform 10, install the limiting plate 2 on the cylinder rod of the actuating cylinder 1 and connect it to the shift rocker arm on the control assembly 4, adjust the position of the actuating cylinder 1 and the limiting mechanism 3 to ensure that the control assembly 4 has enough space to perform the shift action and stops at the maximum shift position;

[0046] (3) Install the first loading cylinder 5 and the second loading cylinder 8 on the test platform 10, and adjust their installation positions so that the slider where the shift head is located can directly push the two cylinders when the operating assembly 4 shifts gears.

[0047] Shift mode:

[0048] (1) Install the control bracket 6 on the test platform 10, and then install the control assembly 4 on the control bracket 6;

[0049] (2) Install the gear selection bracket 9 on the test platform 10, install the actuating cylinder 1 on the gear selection bracket 9, adjust it to a suitable position, and connect the actuating cylinder 1 to the gear selection rocker arm of the operating assembly 4.

[0050] The working process of the utility model is as follows:

[0051] (1) After the test system is assembled, the status is as follows Figure 1 As shown, the free position is neutral, the first loading cylinder 5 on the left is ventilated on the left, and the second loading cylinder 8 on the right is ventilated, so that the cylinder rods at the load ends are moved to the limit positions respectively, and at the same time push against the slider of the guide mechanism 7, so that the operating assembly 4 is in the neutral position. When the right air cavity of the actuating cylinder 1 starts to take in air, the actuating cylinder 1 pushes the shift rocker arm of the operating assembly 4, and the shift dial head rotates to the left end, and the shift dial head pushes the slider of the guide mechanism 7 to move to the left. In the process, it is necessary to overcome the internal resistance of the left air cavity of the first loading cylinder 5. Due to the left and right restrictions of the limit mechanism 3, the cylinder rod of the actuating cylinder 1 installed with the limit plate 2 drives the shift rocker arm to stay in the set position. The above process is the process from neutral to left gear.

[0052] (2) After the shift rocker arm of the operating assembly 4 stays at the left position for a set time, the gas in the right air chamber of the actuating cylinder 1 is discharged through the solenoid valve. At this time, the input force gradually disappears, and the gas pressure inside the left air chamber of the first loading cylinder 5 begins to push the slider to the right. The slider pushes the shift knob until the cylinder rod of the first loading cylinder 5 reaches the limit position, that is, returns to the neutral position. At this time, the shift rocker arm and the shift knob of the operating assembly 4 are both back to the neutral position. The above process is the process from the left gear to the neutral position.

[0053] (3) After the shift rocker arm of the operating assembly 4 stays in the neutral position for a set time, the actuating cylinder 1 is controlled by the solenoid valve, and the left air chamber begins to take in air. The actuating cylinder 1 pushes the shift rocker arm of the operating assembly 4, and the shift dial head rotates to the right end, similar to the process (1) from neutral to the left gear position. Finally, the shift rocker arm and the shift dial head of the operating assembly 4 reach the right gear position.

[0054] After the shift rocker arm of the operating assembly 4 stays at the right position for a set time, the gas in the left air chamber of the actuating cylinder 1 is discharged through the solenoid valve. At this time, the input force gradually disappears, and the gas pressure inside the right air chamber of the second loading cylinder 8 on the right side begins to push the slider of the slide rail slider assembly 7 to the left. The slider pushes the shift knob until the cylinder rod of the second loading cylinder 8 on the right side reaches the limit position, that is, returns to the neutral position. At this time, the shift rocker arm and the shift knob of the operating assembly 4 are both back to the neutral position. The above process is the process from the right gear to the neutral position.

[0055] The above process is a complete shifting process. By installing a position switch on the cylinder to output a position signal, it can also be determined whether the shift rocker arm and shift dial of the operating assembly 4 have reached the set position, and an alarm can be issued if they have not reached the set position.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, 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 control assembly single-unit gear selection and shifting life test bench, characterized in that: The test platform (10) comprises a control bracket (6) installed on the test platform (10), and a control assembly (4) is fixed on the control bracket (6); the input end of the control assembly (4) is connected to the actuating cylinder (1) through a limit mechanism (3); and a first loading cylinder (5) and a second loading cylinder (8) are respectively installed on both sides of the output end of the control assembly (4).

2. The control assembly single-unit gear selection and shifting life test bench according to claim 1 is characterized in that: A guide mechanism (7) is arranged in the operating bracket (6); the upper end of the guide mechanism (7) is connected to the shift head of the operating assembly (4) and is used to limit the circular motion of the shift head when shifting gears to the linear motion between the first loading cylinder (5) and the second loading cylinder (8); the two sides of the guide mechanism (7) are respectively in contact with the cylinder rods of the first loading cylinder (5) and the second loading cylinder (8).

3. The control assembly single-unit gear selection and shifting life test bench according to claim 2 is characterized in that: The guide mechanism (7) comprises a slide rail, which is fixed on the test platform (10) and on which a slider is mounted; a groove is provided at the upper end of the slider, which is used to limit the position of the dial head of the operating assembly (4); and both sides of the slider are respectively in contact with the cylinder rods of the first loading cylinder (5) and the second loading cylinder (8).

4. The control assembly single-unit gear selection and shifting life test bench according to claim 1 is characterized in that: The limiting mechanism (3) comprises two vertically arranged limiting plates; the cylinder rod of the actuating cylinder (1) passes through the two limiting plates; a limiting plate (2) is fixed on the cylinder rod of the actuating cylinder (1); and the limiting plate (2) is located between the two limiting plates.

5. The control assembly single-unit gear selection and shifting life test bench according to claim 4 is characterized in that: The limiting plate (2) is circular and has a hole in the middle; the limiting plate (2) is sleeved on the cylinder rod of the actuating cylinder (1).

6. The control assembly single-unit gear selection and shifting life test bench according to claim 1 is characterized in that: The operating bracket (6) and the operating assembly (4) are fixed via a cover plate (11).

7. The control assembly single-unit gear selection and shifting life test bench according to claim 6 is characterized in that: The cover plate (11) and the operating bracket (6) are detachably connected via bolts.

8. The control assembly single-unit gear selection and shifting life test bench according to claim 1 is characterized in that: A gear selection bracket (9) is also installed on the test platform (10); the gear selection bracket (9) is located on one side of the operating assembly (4), and the gear selection bracket (9) is used to install the actuating cylinder (1) when performing a gear selection test.

9. A control assembly single-unit gear selection and shifting life test bench according to any one of claims 1 to 8, characterized in that: The test platform (10) is provided with a plurality of installation holes for adjusting the installation positions of various components.

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