Transfer case test bench with one-driving-three structure

Abstract

A transfer case test bed with a one-driving-three structure belongs to the field of test equipment and comprises a motor flange, a variable frequency motor, a transfer case support, a transfer case, a flange shaft, a flange, a coupler, a bearing seat assembly, a belt wheel, a transmission shaft, a fastening bolt, a synchronous belt and a rack. The variable frequency motor is connected with the motor flange, the transfer cases are installed on the transfer case support, the motor flange is connected with the flange, the flange is connected with the coupler through the flange shaft, the coupler is connected with the bearing seat assembly, the bearing seat assembly is connected with the belt wheel, the belt wheel is connected with the three transfer cases through the transmission shaft and the synchronous belt, and the set bolt is installed on the rack in a screwed mode. And an oil tank component is arranged below the rack. The device is compact in structure, convenient to operate, safe and reliable, and has multiple detection functions. The performance of three transfer cases can be detected at the same time, and the performance of one or two transfer cases can also be detected. And the working efficiency is effectively improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle testing equipment, and relates to a transfer case test bench, in particular to a transfer case test bench of a one-to-three structure type. Background Art

[0002] In agricultural machinery, construction machinery, transport machinery and other vehicle products, the transfer case is an indispensable and important component. As the name implies, the transfer case is a device that distributes the power of the vehicle's engine. The transfer case can output the engine's power to the vehicle's rear axle, or to the vehicle's front and rear axles at the same time. With the rapid development of four-wheel drive technology, the transfer case has also been changing, and gradually formed different styles of transfer cases, matching four-wheel drive vehicles with different needs.

[0003] Generally, after the vehicle host is assembled, in order to further verify its operating function, it needs to be tested on a transfer case test bench. At present, there are many types of common vehicle transfer case test benches on the market, and the use effects vary, which need to be further improved and perfected.

[0004] The utility model patent with application number 202221337613.0 discloses a test bench for a transfer case of a harvesting machine, including: a motor, a bench, a flange, a protective cover, a positioning body, a transfer case, a magnetic temperature sensor, and a vibration sensor; all components of the test bench are installed on the bench, the motor is bolted to one side of the bench, the flange is connected to the motor output end shaft through a key, and is bolted to the corresponding end of the universal joint, the transfer case on the positioning body on the other side of the bench is connected to the universal joint through its corresponding flange, the protective cover is installed on the universal joint between the positioning body and the flange, and the transfer case is fixed to the positioning body. The positioning body is fixed to the bench with bolts. A vibration sensor is installed on the positioning body, and a magnetic temperature sensor is adsorbed and installed on the transfer case. The utility model can detect the oil temperature and vibration of the transfer case in real time through the sensor, and can also detect oil seepage and leakage in time. However, only a single transfer case can be tested at a time, and multiple transfer cases cannot be tested at the same time. Therefore, it is absolutely necessary to provide a test bench which is compact in structure, easy to operate, safe and reliable, and capable of testing no more than three transfer cases at the same time. Utility Model Content

[0005] The utility model aims to provide a test bench which has compact structure, convenient operation, safety and reliability and can detect less than three transfer cases at the same time.

[0006] The utility model can achieve the above-mentioned purpose through the following technical scheme: a one-to-three structure type transfer case test bench, including: a motor flange, a frequency conversion motor, a transfer case bracket, a transfer case, a flange shaft, a flange, a coupling, a bearing seat assembly, a pulley, a transmission shaft, a fixing bolt, a synchronous belt, and a test bench; the frequency conversion motor is connected to the motor flange, the transfer case is installed on the transfer case bracket, the motor flange is connected to the flange, the flange is connected to the coupling through the flange shaft, the coupling is connected to the bearing seat assembly, the bearing seat assembly is connected to the pulley, the pulley is respectively connected to the three transfer cases through the transmission shaft and the synchronous belt, and the fixing bolts are screwed onto the test bench.

[0007] The pulley is fixedly connected to the middle part of the transmission shaft through a flat key and a top screw, and is located between two bearing seat parts.

[0008] One end of the coupling is connected to a flange, and the other end of the coupling is connected to one end of the transmission shaft by a flat key.

[0009] A shaft retaining spring is clamped on the transmission shaft.

[0010] The synchronous belt is sleeved outside the two pulleys.

[0011] An oil tank component is arranged under the platform.

[0012] The utility model can achieve the following technical effects after adopting the above technical solution: the utility model has compact structure, convenient operation, safety and reliability, and multiple detection functions. It can detect the performance of up to three transfer cases at a time, effectively improving work efficiency and reducing the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view structural schematic diagram of a transfer case test bench of a one-to-three structure type of the utility model;

[0014] Figure 2 The utility model is a schematic diagram of the main structure of a transfer case test bench with a one-to-three structure.

[0015] In the figure: 1. Motor flange, 2. Frequency conversion motor, 3. Transfer case bracket, 4. Transfer case, 5. Flange shaft, 6. Flange, 7. Coupling, 8. Bearing seat assembly, 9. Pulley, 10. Transmission shaft, 11. Shaft retaining ring, 12. Set bolt, 13. Synchronous belt, 14. Fuel tank components, 15. Test bench. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Figure 1-2As shown, a transfer case test bench of a one-to-three structure type includes: a motor flange 1, a variable frequency motor 2, a transfer case bracket 3, a transfer case 4, a flange shaft 5, a flange 6, a coupling 7, a bearing seat assembly 8, a pulley 9, a transmission shaft 10, a shaft retaining ring 11, a tightening bolt 12, a synchronous belt 13, an oil tank component 14, and a stand 15; the variable frequency motor 2 is connected to the motor flange 1 by a flat key, the motor flange 1 is connected to the flange 6 by two bolts, and the transfer case 4 is fixedly mounted on the transfer case bracket 3 by a pad, a bolt, and a positioning plate. The flange shaft 5 is fixedly connected to the flange 6 by two bolts. The flange 6 is connected to one end of the coupling 7 by a flat key, and the other end of the coupling 7 is connected to one end of the transmission shaft 10 by a flat key. The transmission shaft 10 is mounted in the deep groove ball bearings in the two bearing seat assemblies 8 to achieve the rotation requirement; the pulley 9 is fixedly connected to the middle of the transmission shaft 10 by a flat key and a top screw, and is located between the two bearing seat assemblies 8. The synchronous belt 13 is set on the outside of the pulley 9 of the two transmission shafts 10, which are 550mm apart in the center. The shaft retaining ring 11 is clamped on the transmission shaft 10, next to the deep groove ball bearing in the bearing seat assembly 8. The fixing bolt 12 is screwed on the fixing plate a on the stand 15 to adjust the position of the two bearing seat assemblies 8 to ensure that the synchronous belt 13 is always in a tensioned state. A motor seat b and a fixing plate a are welded on the stand 15, connecting three transfer case brackets 3 and four bearing seat assemblies 8. The oil tank component 14 is equipped with an oil pump and a filter basket c, which are used to add oil and filter oil.

[0017] During operation: after the variable frequency motor 2 with the speed set by the frequency converter rotates, one transmission output transmits power to the corresponding transfer case 4 through the motor flange 1, flange 6, coupling 7, transmission shaft 10, and flange shaft 5. At the same time, this transmission output transmits power to the other transmission output through the synchronous belt 13 during power transmission. The other transmission output, driven by the synchronous belt 13, transmits power to the other two transfer cases 4 at the corresponding positions through the transmission shaft 10, coupling 7, flange 6, and flange shaft 5. In this way, the effect of testing three transfer cases 4 at the same time is achieved, which greatly improves the test efficiency. If only one or two transfer cases 4 are to be tested, it is sufficient to cut off other connections.

[0018] In addition, if you replace other transfer case brackets and slightly exchange some connecting parts, you can achieve the purpose of testing other transfer cases.

[0019] Finally, it should be noted that the above is only a preferred embodiment of the utility model, and is not intended to limit the entire content of the utility model. Although the utility model is described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to make formal modifications to the technical solutions described in the above embodiments, or to make equivalent replacements for some of the technical features. Therefore, any formal modifications, equivalent replacements, etc. made within the technical ideas of the utility model should be included in the scope of protection of the utility model.

Claims

1. A transfer case test bench of one-to-three structure type, comprising: A motor flange (1), a variable frequency motor (2), a transfer case bracket (3), a transfer case (4), a flange shaft (5), a flange (6), a coupling (7), a bearing seat assembly (8), a pulley (9), a transmission shaft (10), a fixing bolt (12), a synchronous belt (13), and a stand (15); the feature of the invention is that the variable frequency motor (2) is connected to the motor flange (1), the transfer case (4) is mounted on the transfer case bracket (3), the motor flange (1) is connected to the flange (6), the flange (6) is connected to the coupling (7) through the flange shaft (5), the coupling (7) is connected to the bearing seat assembly (8), the bearing seat assembly (8) is connected to the pulley (9), the pulley (9) is respectively connected to the three transfer cases (4) through the transmission shaft (10) and the synchronous belt (13), and the fixing bolt (12) is screwed onto the stand (15).

2. The one-to-three structure transfer case test bench according to claim 1, characterized in that: The pulley (9) is fixedly connected to the middle of the transmission shaft (10) via a flat key and a top screw, and is located between the two bearing seat components (8).

3. The one-to-three structure transfer case test bench according to claim 1, characterized in that: One end of the coupling (7) is connected to the flange (6), and the other end of the coupling (7) is connected to one end of the transmission shaft (10) by a flat key.

4. The one-to-three structure transfer case test bench according to claim 1, characterized in that: A shaft retaining spring (11) is clamped onto the transmission shaft (10).

5. The one-to-three structure transfer case test bench according to claim 1, characterized in that: The synchronous belt (13) is sleeved on the outside of the two pulleys (9).

6. The one-to-three structure transfer case test bench according to claim 1, characterized in that: An oil tank component (14) is arranged below the platform (15).

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