Automobile transverse hybrid gearbox twin trawling test tool

Abstract

The utility model discloses an automobile transverse hybrid gearbox twin trawling test tool, which comprises a support and a mounting plate for placing an automobile transverse hybrid gearbox to be tested, two prototypes are arranged on the mounting plate, and the mounting plate is fixed on the support; a bearing seat is fixedly arranged on the mounting plate, a spline shaft is sleeved in the bearing seat and is supported on the bearing seat through a bearing, belt wheels are arranged on the spline shaft, an idle wheel is arranged below the two belt wheels, and a corresponding transmission belt is connected with the two belt wheels and the idle wheel; according to the device, the additional radial force during transmission of the input end of the prototype is completely eliminated, so that the stress of the prototype is consistent with that of a real vehicle, and the accuracy and the reliability of testing are ensured; full-range high-rotating-speed and high-torque working condition testing of the input shaft of the prototype is realized, and various working conditions required by prototype testing are completely adapted.

Description

TECHNICAL FIELD

[0001] The utility model relates to gearbox test field, concretely relates to a kind of automobile gearbox to tow test tooling. BACKGROUND

[0002] When automobile transverse hybrid gearbox is tow tested, the power input end of two gearbox assemblies needs to be connected by belt, gear or chain etc., so as to realize power transmission between two gearboxes. The gearbox tow test usually has the following requirements: 1. high speed and high torque working condition; 2. continuously changing speed and torque; 3. continuous operation for months; 4. operation under the temperature condition of -40~85℃. Therefore, the system (transmission system) for power transmission of the input end of two gearboxes needs to withstand high speed, high torque, frequent load change, long-time operation, high and low temperature and other operating conditions.

[0003] The current automobile transverse hybrid gearbox tow test tooling usually adopts basic transmission (belt transmission, gear transmission, chain transmission) form, which cannot meet the above harsh transmission requirements at the same time, so the test range is limited, resulting in that part of the test projects cannot be carried out.

[0004] When belt transmission is adopted (see Figure 1 ), pulley is directly installed on the input shaft of two gearbox assemblies, belt is installed on two pulleys and belt tensioning is carried out by adjusting the center distance of two pulleys, so as to realize power transmission.

[0005] When gear transmission is adopted (see Figure 2 ), gear is installed on the input shaft of two gearbox assemblies, and power transmission is realized by gear meshing. When two gearboxes are installed in the same direction, at least one (or other odd number of gears) needs to be added in the middle of two gears to ensure that the rotation directions of the input shafts of two gearboxes are consistent; when two gearboxes are installed in opposite directions, the number of gears does not need to be increased from the perspective of ensuring that the rotation directions of the input shafts of two gearboxes are consistent.

[0006] When chain transmission is adopted (see Figure 3 ), sprocket is directly installed on the input shaft of two gearbox assemblies, chain is installed on two sprockets and sprocket tensioning is carried out by adjusting the center distance of two sprockets, so as to realize power transmission.

[0007] The existing technology has the following shortcomings:

[0008] Belt transmission: cannot withstand high and low temperature environment, cannot carry out test under high and low temperature environment; the radial force of belt transmission directly acts on the input shaft of the tested sample machine, which is inconsistent with the working condition of the sample machine on the vehicle, causing the sample machine to be damaged in advance; the range of high speed and high torque is limited, which cannot meet part of the test working conditions.

[0009] Gear transmission: when the center distance of the input shaft of the two prototypes is large, multiple gear transmissions are required, a gear box needs to be designed, oil lubrication and cooling need to be used, the structure design is complex, the cost is high, and the space occupied is large, sometimes even unable to avoid the output half shaft of the gearbox; the radial force of the gear transmission directly acts on the measured input shaft of the prototype, which is inconsistent with the working condition of the prototype on the vehicle, causing the prototype to be damaged in advance.

[0010] Chain transmission: oil lubrication needs to be considered, the lubrication system design is complex, the cost is high; the radial force of the chain transmission directly acts on the measured input shaft of the prototype, which is inconsistent with the working condition of the prototype on the vehicle, causing the prototype to be damaged in advance; the high-speed high-torque range is limited, and cannot meet the requirements of some high test conditions. Practical new type content

[0011] Therefore, the technical problem to be solved by the present application is to provide an automobile transverse hybrid transmission drag test tool to solve the problems of the above-mentioned several transmission modes during transmission testing.

[0012] The technical scheme of the present application is an automobile transverse hybrid transmission drag test tool, comprising a bracket and a mounting plate for placing a measured automobile transverse hybrid transmission, two prototypes are provided on the mounting plate, and the mounting plate is fixed on the bracket; a bearing seat is fixedly arranged on the mounting plate, a spline shaft is sleeved in the bearing seat, is supported on the bearing seat through a bearing, a pulley is arranged on the spline shaft, two pulleys are provided below the pulleys, and a corresponding transmission belt connects the two pulleys and the idler; the output half shaft of one of the prototypes is located inside a triangle formed by the transmission belt.

[0013] The spline shaft is supported on the bearing seat through a bearing. There are two pulleys, and each pulley corresponds to a spline shaft and a bearing seat. Two prototypes are provided on the mounting plate, and each prototype has a respective half shaft. As shown in the figure, the transmission belt, the pulley and the idler form a triangle, and the half shaft of the right prototype is located in the triangular area. In this way, the half shaft of the right prototype can avoid the transmission belt, and the belt does not interfere with the half shaft. Figure 4

[0014] According to the automobile transverse hybrid transmission drag test tool of the present application, during testing, the measured automobile transverse hybrid transmission is fixedly arranged on the mounting plate.

[0015] According to the automobile transverse hybrid transmission drag test tool of the present application, a tensioning sleeve is provided between the pulley and the spline shaft for connection and tensioning.

[0016] According to the automobile transverse hybrid transmission drag test tool of the present application, the mounting plate is fixed on the bracket by bolts.​

[0017] According to the automobile transverse hybrid transmission case opposite-pull test tool, the heat insulation plate is arranged on the support, and a sealing strip for sealing is arranged between the heat insulation plate and the mounting plate.

[0018] Further, the heat insulation plate is covered with a heat insulation cover.

[0019] Further, the heat insulation cover is fixed on the heat insulation plate through a lock buckle, and a sealing strip for sealing is arranged between the heat insulation cover and the heat insulation plate. The sealing strip is preferably a rubber strip.

[0020] According to the automobile transverse hybrid transmission case opposite-pull test tool, the heat insulation plate is arranged on the support, and a sealing strip for sealing is arranged between the heat insulation plate and the mounting plate.

[0021] Preferably, the idler wheel is one or more.

[0022] Preferably, the two pulleys have consistent diameters, and the diameter of the idler wheel is smaller than that of the pulleys.

[0023] The device selects high-strength synchronous belt transmission, and a bearing seat is arranged between the measured sample machine (the automobile transverse hybrid transmission case) and the synchronous pulley. An independent idler wheel is used to tension the synchronous belt, so that the tension of the transmission belt can be conveniently adjusted while the center distance of the sample machine is unchanged. The entire bearing seat and the synchronous belt transmission system are covered in a closed space formed by the heat insulation plate and the heat insulation cover. Compressed air with large flow rate is introduced into the cover to maintain the temperature in the cover and carry away the heat generated by the operation of the bearing and the synchronous belt.

[0024] The device selects high-strength synchronous belt transmission, and a bearing seat is arranged between the measured sample machine (the automobile transverse hybrid transmission case) and the synchronous pulley. An independent idler wheel is used to tension the synchronous belt, so that the tension of the transmission belt can be conveniently adjusted while the center distance of the sample machine is unchanged. The entire bearing seat and the synchronous belt transmission system are covered in a closed space formed by the heat insulation plate and the heat insulation cover. Compressed air with large flow rate is introduced into the cover to maintain the temperature in the cover and carry away the heat generated by the operation of the bearing and the synchronous belt.

[0025] 1. The additional radial force during transmission of the sample machine input end is completely eliminated, so that the force on the sample machine is consistent with that of the actual vehicle, and the accuracy and reliability of the test are ensured;

[0026] 2. The high-speed and high-torque working condition test of the sample machine input shaft is realized, and the various working conditions required for the sample machine test are completely adapted;

[0027] 3. The idler wheel effectively controls the tension while avoiding the sample machine output half shaft, achieving two goals at once; it can also ensure that the belt works in the best state;

[0028] 4. The use of the heat insulation plate, the heat insulation cover and compressed air ensures that the transmission device can continuously and long-term operate in high and low temperature test environment;

[0029] 5. The sample machine test range is expanded, and all test working conditions of the sample machine at the present stage can be met;

[0030] 6 Simple and effective structure, and well controlled cost. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic diagram of a belt drive of the prior art.

[0032] Figure 2 is a schematic diagram of a gear drive of the prior art.

[0033] Figure 3 is a schematic diagram of a chain drive of the prior art.

[0034] Figure 4 is a front view of the present application.

[0035] Figure 5 is an A-A sectional view of Figure 4

[0036] Figure 6 is a top view of the present application.

[0037] Figure 7 is a front view of the present application with a heat insulation cover.

[0038] Figure 8 is an A-A sectional view of Figure 7

[0039] Figure 9 is a top view of the present application with a heat insulation cover.

[0040] In the figure, 1 is a support, 2 is a mounting plate, 3 is a bearing seat, 4 is a spline shaft, 5 is a pulley, 6 is a high-strength synchronous belt, 7 is an idler, 8 is a temperature insulation plate, 9 is a temperature insulation cover, 10 is a lock buckle, 11 is a first prototype half shaft, and 12 is a second prototype half shaft. DETAILED DESCRIPTION

[0041] As Figures 4-9 , a kind of automobile transverse hybrid transmission is tested to the tool of pair of drag, including support 1 and mounting plate 2, mounting plate 2 is fixed on support 1;Bearing seat 3 is fixedly arranged on the mounting plate 2;Two pulleys 5 are provided on spline shaft in bearing seat, idler 7 is provided, corresponding transmission belt 6 is connected the pulley and the idler;Spline shaft 4 is supported on bearing seat 3 by bearing.

[0042] ​​The mounting plate 2 is fixed on the support 1 by bolts, the measured prototype (a car transverse hybrid transmission) is fixed on the mounting plate 2 by bolts, the bearing seat 3 is fixed on the mounting plate 2 by bolts, the spline shaft 4 is supported in the bearing seat 3 by bearings, the spline shaft 4 is connected with the input shaft of the measured prototype through a linkage tool (spline sleeve), the synchronous pulley 5 is connected on the spline shaft 4 through an expansion sleeve, the synchronous belt 6 connects two sets of synchronous pulleys 5 and is tensioned through the idler 7. The heat insulation plate 8 is installed on the support 1 by bolts, and the heat insulation plate 8 is sealed with rubber sealing strips between the mounting plate 2, the heat insulation cover 9 is fixed on the heat insulation plate 8 through the lock buckle 10, and the heat insulation cover 9 is sealed with rubber sealing strips between the heat insulation plate 8.

[0043] Since the idler 7 is used for tensioning, the tensioning force of the synchronous belt can be accurately adjusted, so that the stability of the synchronous belt in the high-speed and high-torque power transmission process is ensured, and the idler 7 tensioning also enables the synchronous belt to avoid the half shaft of the prototype output end. Figure 4 As shown in the figure, two synchronous pulleys are used in this case, the synchronous belt connects two synchronous pulleys and an idler, and the synchronous belt avoids the half shaft of the right prototype, that is, the second prototype half shaft 12.

[0044] Since the heat insulation plate 8 and the heat insulation cover 9 are used and compressed air is introduced into the heat insulation cover, the compressed air enters from the two interfaces of the heat insulation plate 8 and is blown out to the laboratory environment from the right side of the heat insulation cover 9 (as shown in the figure). Figure 9 The bearing seat 3 and the synchronous belt 6 can take away the heat generated during operation under the flow of compressed air, prevent the temperature of the bearing and the synchronous belt from being too high, and also isolate the high and low temperature environment required by the test, so that the bearing and the synchronous belt can continuously operate for a long time within a reasonable temperature range. The heat insulation plate and the heat insulation cover can be integrated or split into other different forms and quantities of combined structures, as long as they can form a closed cavity, are easy to install, can introduce compressed air and take away heat through air flow; the compressed air introduced into the closed space formed by the heat insulation plate and the heat insulation cover can be replaced by any other flowing gas.

[0045] Since the bearing seat 3 is used, the radial force of the synchronous belt transmission is borne by the bearing seat 3, the spline shaft 4 and the bearing, and the prototype input shaft is no longer subjected to the radial force. During the test, the prototype shaft is only subjected to pure torque, so that the prototype and the actual vehicle are subjected to the same force.

[0046] Since the high-strength synchronous belt is used, the high-torque and high-speed working conditions during the prototype test can be completely met.

[0047] The utility model increases the bearing seat between the measured prototype (car transverse hybrid transmission) and the synchronous pulley, avoids that the prototype input shaft bears the additional radial force caused by the transmission device;

[0048] High-strength synchronous belt transmission is adopted, which meets the high-torque and high-speed power transmission, and also ensures that the rotational speeds of the two shafts are highly consistent;

[0049] The idler wheel is used to tension, which can ensure the constant center distance of the prototype, adjust the tension of the synchronous belt, and avoid the synchronous belt from the output half shaft of the prototype;

[0050] The temperature insulation plate and the temperature insulation cover form a closed space, which can isolate the bearing seat and the belt transmission device from the high and low temperature environment required by the prototype test, and the compressed air is introduced into the closed space, so that the environment temperature in the closed space can be kept in a lower state all the time, and the airflow generated by the compressed air can take away the heat generated by the bearing and the belt during operation, so that the bearing and the belt can be kept in a suitable temperature range for a long time.

Claims

1. A kind of automobile transverse hybrid transmission test tool, comprising support and installation plate for placing automobile transverse hybrid transmission to be tested, two sample machines are provided on the installation plate, characterized in that: The mounting plate (2) is fixed on the support (1); the bearing seat (3) is fixedly arranged on the mounting plate (2), the spline shaft (4) is sleeved in the bearing seat (3), is supported on the bearing seat (3) through a bearing, the belt pulley (5) is arranged on the spline shaft, two belt pulleys are below the idler pulley (7), and the corresponding transmission belt (6) is connected with the two belt pulleys and the idler pulley; the output half shaft of one sample machine is located in the triangle surrounded by the transmission belt (6).

2. The test tool of claim 1, wherein: When testing, the automobile transverse hybrid transmission to be tested is fixedly arranged on the mounting plate (2).

3. The test tool of claim 1, wherein: The belt pulley (5) and the spline shaft (4) are provided with an expansion sleeve for connecting and tightening.

4. The test tool of claim 1, wherein: The mounting plate (2) is fixed on the support (1) by bolts.

5. The test tool of claim 1, wherein: The support (1) is provided with a heat insulation plate (8), and a sealing strip for sealing is arranged between the heat insulation plate (8) and the mounting plate (2).

6. The test tool of claim 5, wherein: The heat insulation plate (8) is covered with a heat insulation cover (9).

7. The test tool of claim 6, wherein: The heat insulation cover (9) is locked on the heat insulation plate (8) through (10), and a sealing strip for sealing is arranged between the heat insulation cover (9) and the heat insulation plate (8).

8. The test tool of claim 1, wherein: The belt pulley is selected from one of a synchronous belt pulley, a multi-wedge belt pulley and a flat belt pulley, and the corresponding transmission belt is selected from one of a synchronous belt, a multi-wedge belt and a flat belt.

9. The test tool of claim 1, wherein: The idler pulley is one or more.

10. The test tool of claim 1, wherein: The diameters of the two belt pulleys are consistent, and the diameter of the idler pulley is smaller than that of the belt pulley.

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