High-rotating-speed engine pedestal endurance test device

Abstract

The utility model discloses a high rotation speed engine bench endurance test device comprising a bench pedestal, the bench pedestal is provided with a movable first pedestal and a movable second pedestal, the top of the first pedestal is provided with a dynamometer and a connection support seat, the top of the second pedestal is provided with a speed reducer, and the top of the second pedestal is provided with a motor. The speed reducer is connected with the dynamometer through the connecting support seat, the rack base is provided with a pair of engine support frames, the engine support frames are used for supporting an engine, and the engine is in shaft connection with the speed reducer. The endurance test device for the high-rotation-speed engine bench is novel in structure, the high-performance speed reducing mechanism, the elastic damping structure, the diaphragm coupling and other devices are arranged between the tested engine and the dynamometer, rigid-flexible coupling connection is safe and reliable, adjustment is convenient, the use requirements of multiple test functions of the performance of the high-rotation-speed engine bench are met, and practicability is high.

Description

Technical Field

[0001] The utility model relates to an engine test device, more specifically, to a high-speed engine bench durability test device. Background Art

[0002] All-terrain vehicles can be divided into internal combustion engine all-terrain vehicles and electric all-terrain vehicles according to the type of energy. At present, the mainstream all-terrain vehicles on the market are still mainly based on engine power output, and the market demand for large-displacement, high-speed engines is gradually increasing. When conducting performance and durability reliability tests on all-terrain vehicle engines, it was usually necessary to assemble a universal joint coupling shaft, a ball cage coupling shaft, or a sliding spline coupling shaft between the output shaft of the tested engine and the input shaft of the dynamometer. However, high speeds will produce a large moment of inertia, and the centering accuracy requirements for engine performance and durability test equipment are very high. Conventional coupling shaft types are difficult to meet the test requirements, and there is often a risk of coupling shaft breakage and damage to the engine crankshaft or dynamometer. Utility Model Content

[0003] Based on this, it is necessary to provide a high-speed engine bench durability test device to address the above technical problems.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A high-speed engine bench durability test device, characterized in that the high-speed engine bench durability test device comprises a bench base, a movable first base and a movable second base are provided on the bench base, a dynamometer and a connecting support base are provided on the top of the first base, a reducer is provided on the top of the second base, the reducer is connected to the dynamometer via the connecting support base, a pair of engine support frames are provided on the bench base, the engine support frames are used to support the engine, and the engine and the reducer are axially connected.

[0006] As a preferred embodiment of the utility model, a torque sensor assembly and a first connecting shaft are provided between the dynamometer and the connecting support seat.

[0007] As a preferred embodiment of the utility model, a second coupling is provided between the connecting support seat and the reducer.

[0008] As a preferred embodiment of the utility model, the first connecting shaft and the second coupling are both diaphragm couplings.

[0009] As a preferred embodiment of the utility model, an elastic coupling is provided between the input shaft of the reducer and the output shaft of the engine.

[0010] As a preferred embodiment of the utility model, the elastic coupling is provided with a high-elasticity shock-absorbing rubber sleeve.

[0011] As a preferred embodiment of the utility model, the engine support frame includes three liftable support columns, and the tops of the support columns are provided with mounting brackets.

[0012] As a preferred embodiment of the utility model, the first connecting shaft, the second coupling and the elastic coupling are all provided with protective covers.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides a high-speed engine bench durability test device. The high-speed engine bench durability test device has a novel structure. A high-performance deceleration mechanism, an elastic shock-absorbing structure, a diaphragm coupling and other devices are arranged between the tested engine and the dynamometer. The rigid-flexible coupling connection is safe and reliable, and is easy to adjust. It meets the use requirements of multiple test functions of the high-speed engine bench performance and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the high-speed engine bench durability test device of the utility model;

[0017] Figure 2 for Figure 1 A partial structural diagram of the high-speed engine bench durability test device in FIG. 1 shows the connection method between the dynamometer and the connection support seat;

[0018] Figure 3 for Figure 1 A partial structural diagram of the high-speed engine bench durability test device in FIG. 1 shows the connection method between the support base and the reducer;

[0019] Figure 4 for Figure 1 A partial structural diagram of the high-speed engine bench durability test device in FIG. 1 shows the connection method between the input shaft of the reducer and the output shaft of the engine;

[0020] Figure 5 for Figure 1 A partial structural diagram of the high-speed engine bench durability test device in FIG. 1 shows the engine support frame;

[0021] The markings in the figure are as follows: 1. Test bench base; 10. First connecting shaft; 11. Second coupling; 2. First base; 3. Dynamometer; 4. Second base; 121. High elastic shock-absorbing rubber sleeve; 5. Reducer; 51. Input shaft; 6. Connecting support seat; 7. Engine support frame; 71. Support column; 72. Mounting bracket; 8. Engine; 81. Output shaft; 9. Torque sensor assembly. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] like Figures 1 to 5 As shown, the high-speed engine bench durability test device includes a bench base 1, on which a movable first base 2 and a movable second base 4 are provided. A dynamometer 3 and a connecting support base 6 are provided on the top of the first base 2. A reducer 5 is provided on the top of the second base 4, and the reducer 5 is connected to the dynamometer 3 through the connecting support base 6. A pair of engine support frames 7 are provided on the bench base 1, and the engine support frames 7 are used to support an engine 8, and the engine 8 is axially connected to the reducer 5.

[0024] like Figure 2 As shown, a torque sensor assembly 9 and a first connecting shaft 10 are provided between the dynamometer 3 and the connecting support seat 6 .

[0025] The connection support seat 6 not only connects equipment and measures data, but also protects the dynamometer 3 by reducing the strong torsional vibration impact of the high speed and high torque generated by the direct connection on the dynamometer.

[0026] like Figure 3 As shown, a second coupling 11 is provided between the connecting support seat 6 and the reducer 5 .

[0027] It should be noted that the first connecting shaft 10 and the second coupling 11 are both diaphragm couplings.

[0028] like Figure 4 As shown, an elastic coupling 12 is provided between the input shaft 51 of the reducer 5 and the output shaft 81 of the engine 8. The elastic coupling 12 is provided with a high elastic shock absorbing rubber sleeve 121.

[0029] It should be noted that the high-elasticity shock-absorbing rubber sleeve 121 can effectively reduce the strong torsional vibration impact of high speed and high torque on the dynamometer.

[0030] like Figure 5As shown, the engine support frame 7 includes three liftable support columns 71 , and a mounting bracket 72 is provided on the top of the support column 71 .

[0031] It should be noted that the engine support bracket 7 can be adjusted in three coordinate directions, and the coaxial position of the output shaft 81 of the engine 8 under test relative to the input shaft 51 of the reducer 5 can be accurately adjusted.

[0032] In addition, the first connecting shaft 10, the second coupling 11 and the elastic coupling 12 are all provided with protective covers to prevent the couplings from being damaged and flying out.

[0033] The working mode of the high speed engine bench durability test device is described below.

[0034] The engine 8 is fixedly installed through the engine support frame 7. When testing, the power of the engine 8 is transmitted to the input shaft 51 of the reducer 5 through the output shaft 81, and the power is then transmitted to the connecting support seat 6 through the second coupling 11. Then, the connecting support seat 6 transmits the power of the engine to the dynamometer 3 through the first connecting shaft 10, thereby completing the dynamometer operation. During the dynamometer process, the torque sensor assembly 9 monitors the torque reduction in real time.

[0035] The high-speed engine bench durability test device has a novel structure. A high-performance reduction mechanism, elastic couplings, diaphragm couplings and other devices are arranged between the engine under test and the dynamometer. The rigid-flexible coupling connection is safe and reliable, and easy to adjust. It meets the needs of multiple test functions of the high-speed engine bench performance and is highly practical.

[0036] Without limitation to this, any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope defined in the claims.

Claims

1. A high speed engine bench durability test device, characterized in that: The high-speed engine bench durability test device comprises a bench base (1), wherein the bench base (1) is provided with a movable first base (2) and a movable second base (4), wherein a dynamometer (3) and a connecting support base (6) are provided on the top of the first base (2), wherein a reducer (5) is provided on the top of the second base (4), wherein the reducer (5) is connected to the dynamometer (3) via the connecting support base (6), wherein a pair of engine support frames (7) are provided on the bench base (1), wherein the engine support frames (7) are used to support an engine (8), wherein the engine (8) is axially connected to the reducer (5).

2. The high speed engine bench durability test device according to claim 1, characterized in that: A torque sensor assembly (9) and a first connecting shaft (10) are provided between the dynamometer (3) and the connecting support seat (6).

3. The high speed engine bench durability test device according to claim 2, characterized in that: A second coupling (11) is provided between the connecting support seat (6) and the reducer (5).

4. The high speed engine bench durability test device according to claim 3, characterized in that: The first connecting shaft (10) and the second coupling (11) are both diaphragm couplings.

5. The high speed engine bench durability test device according to claim 1, characterized in that: An elastic coupling (12) is provided between the input shaft (51) of the reducer (5) and the output shaft (81) of the engine (8).

6. The high speed engine bench durability test device according to claim 5, characterized in that: The elastic coupling (12) is provided with a high-elasticity shock-absorbing rubber sleeve (121).

7. The high speed engine bench durability test device according to claim 1, characterized in that: The engine support frame (7) comprises three liftable support columns (71), and a mounting bracket (72) is provided on the top of each support column (71).

8. The high speed engine bench durability test device according to claim 4, characterized in that: The first connecting shaft (10), the second coupling (11) and the elastic coupling (12) are all provided with protective covers.

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