CN111623975A

CN111623975A - Starter reliability test device

Info

Publication number: CN111623975A
Application number: CN202010556084.2A
Authority: CN
Inventors: 高雪峰; 张贤杰; 陈刚; 李拥军; 杨俊保
Original assignee: Dongfeng Electric Drive Systems Co Ltd
Current assignee: Dongfeng Electric Drive Systems Co Ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2020-09-04

Abstract

The invention provides a starter reliability test device which can effectively improve the working load in the starter performance test process and improve the test effectiveness.

Description

Starter reliability test device

Technical Field

The invention relates to the field of electrical test equipment, in particular to a starter reliability test device.

Background

The starter reliability test in the automobile motor industry generally adopts an engine bench to test, and has two defects: 1) the test efficiency is low: the reliability service life of the starter is longer and longer, the corresponding test period is also very long, and the short-term test is difficult to complete; 2) the test effectiveness is poor, the environmental conditions of the engine in the limit use are difficult to reflect in the laboratory environment, the failure states of the starter under various severe conditions are difficult to reproduce, and the test effect is poor.

Therefore, a starter reliability test device needs to be developed, the dilemma that the test conditions in the starter test are difficult to simulate the actual use state is effectively solved, the test effectiveness is improved, and the test period is shortened.

Disclosure of Invention

The technical scheme of the invention is as follows: the starter comprises an adjustable base, a starter mounting seat, a load generating mechanism, a load mounting seat, a gear head and a power output mechanism, wherein the starter mounting seat and the load mounting seat are fixed on the adjustable base, the load generating mechanism is arranged on the load mounting seat and is connected with an external control system and can generate a resistance moment, the load generating mechanism comprises two power output shafts, one power output shaft is connected with the gear head, the other power output shaft is connected with the power output mechanism, the starter mounting seat is arranged on one side of the gear head, and a starter to be tested is arranged on the starter mounting seat, so that a starter gear can be meshed with the gear head.

Preferably, as above-mentioned scheme, the load takes place the mechanism and is the magnetic powder clutch, and the load mount pad includes two sets of installing supports, and the lower extreme is fixed on adjustable base, upper end and magnetic powder clutch fixed connection.

Preferably, the power output mechanism comprises a universal joint and a connecting rod, one end of the universal joint is connected with the corresponding output shaft on the magnetic powder clutch, the other end of the universal joint is connected with the connecting rod, the other end of the connecting rod is provided with a flange, and the flange is used for being connected with an engine flywheel.

Preferably, the adjustable base comprises a bottom plate, a first movable plate and a second movable plate which are sequentially arranged from bottom to top, the first movable plate and the second movable plate and the first movable plate and the bottom plate are connected through linear slide rail assemblies, the sliding directions of the two groups of linear slide rail assemblies are perpendicular to each other, and the starter mounting seat and the load mounting seat are both mounted on the upper surface of the second movable plate.

Preferably, a door-shaped frame is arranged on one side, located at the flange at the end of the connecting rod, of the second movable plate, the lower end of the door-shaped frame is fixed on the second movable plate, the connecting rod penetrates through the door-shaped frame, and the door-shaped frame is used for being connected with an engine flywheel shell.

The invention has the beneficial effects that: 1. by adding the magnetic powder clutch as a load generating mechanism, the starting resistance moment of the starter is greatly improved, the load of the reliability test of the starter is greatly improved, various severe environment conditions (extremely low temperature, extreme impact, extreme variable load and the like) in the actual use process of the engine can be effectively simulated, and the effectiveness of the test is improved.

2. The power output mechanism is arranged, so that radial and axial deviations of the flywheel disc of the engine and the output shaft of the load generation mechanism can be effectively compensated, and the damage of parts connected with the flywheel disc of the engine due to abnormal stress caused by the radial and axial deviations in the test process is prevented.

3. Set up adjustable base, can realize the regulation of two degrees of freedom (X axle and Y axle promptly) to the mechanism on the second fly leaf, carry out position adjustment to whole test device according to the position of engine, be convenient for dock with the engine.

Drawings

Fig. 1 and 2 are schematic views of the overall structure of the present invention.

Detailed Description

Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the structure of this embodiment includes an adjustable base 10, a starter mounting seat 4, a load generating mechanism 1, a load mounting seat, a gear head 5, and a power output mechanism, where the starter mounting seat 4 and the load mounting seat are both fixed on the adjustable base 10, the load generating mechanism 1 is disposed on the load mounting seat, connected to an external control system, and capable of generating a resisting moment, the load generating mechanism 1 includes two power output shafts, one of the power output shafts is connected to the gear head 5, the other power output shaft is connected to the power output mechanism, the starter mounting seat 4 is disposed on one side of the gear head 5, and is to be detected on the starter mounting seat 4, so that a starter gear can be meshed with the gear head 5.

In this embodiment, mechanism 1 takes place for the magnetic powder clutch for the load, and the load mount pad includes two sets of installing support 2 and 3, and the lower extreme is fixed on adjustable base 10, upper end and magnetic powder clutch fixed connection.

In this embodiment, power take off mechanism includes universal joint 6 and connecting rod 7, the output shaft that corresponds on universal joint 6 one end and the magnetic powder clutch, the other end is connected with connecting rod 7, and the connecting rod 7 other end is equipped with flange 8, flange 8 is used for being connected with the engine flywheel.

In this embodiment, the adjustable base 10 includes a bottom plate 101, a first movable plate 102 and a second movable plate 103, which are sequentially arranged from bottom to top, the first movable plate 102 and the second movable plate 103 and the first movable plate 102 and the bottom plate 101 are connected by linear slide assemblies 104, sliding directions of the two sets of linear slide assemblies 104 are perpendicular to each other, and the starter mounting seat 4 and the load mounting seat are both mounted on an upper surface of the second movable plate 103.

In this embodiment, a door frame 9 is disposed on the second flap 103 at one side of the end flange 8 of the connecting rod 7, the lower end of the door frame 9 is fixed on the second flap 103, the connecting rod 7 passes through the door frame 9, and the door frame 9 is used for connecting with the flywheel housing of the engine.

In the actual driving environment of the automobile, severe environments such as extremely low temperature, extreme impact, extreme variable load and the like can be encountered, and in the severe environments, when the automobile is started, the starter is subjected to extremely large load. Therefore, in the starter reliability test, the load value of the starter which is subjected to starting needs to be changed continuously, so that the actual load state of the starter which is subjected to different severe environments is simulated. In the embodiment, during the test, after the starter is started, the gear head 5 transmits the starting torque to drive the magnetic powder clutch and the engine to operate, the magnetic powder clutch is used as a load loading device, the magnetic powder clutch is controlled by an external control system, the output torque can be adjusted by inputting currents with different magnitudes, the torque is used as a load and loaded on the starter through the gear head 5, and the load state of the engine under different environments can be simulated.

In this embodiment, the power output from the magnetic powder clutch to the engine flywheel disc is transmitted by the universal joint 6 and the connecting rod 7, and compared with the rigid output directly transmitted by the connecting rod 7, the requirement on the coaxiality of the engine flywheel disc and the output shaft of the magnetic powder clutch is lower in the former, and even if the two are not coaxial, the power transmission can be realized without causing damage to the engine flywheel disc and other parts. Therefore, the universal joint 6 and the connecting rod 7 are arranged to form a power output mechanism, radial and axial deviations of the flywheel disc of the engine and the output shaft of the load generating mechanism 1 can be effectively compensated, and damage to parts connected with the flywheel disc and the load generating mechanism due to abnormal stress caused by the radial and axial deviations in the test process is prevented.

In this embodiment, when flange 8 on the connecting rod was installed with the engine butt joint, can carry out the regulation of two degrees of freedom (X axle and Y axle promptly) through adjusting two sets of linear slide rail set spares on the adjustable base to the whole on the second regulating plate, be favorable to improving the efficiency of installation butt joint, promote whole testing device's operability.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a starter reliability test device which characterized in that: the starter comprises an adjustable base, a starter mounting seat, a load generating mechanism, a load mounting seat, a gear head and a power output mechanism, wherein the starter mounting seat and the load mounting seat are fixed on the adjustable base, the load generating mechanism is arranged on the load mounting seat and is connected with an external control system and can generate a resistance moment, the load generating mechanism comprises two power output shafts, one power output shaft is connected with the gear head, the other power output shaft is connected with the power output mechanism, the starter mounting seat is arranged on one side of the gear head, and a starter to be tested is arranged on the starter mounting seat, so that a starter gear can be meshed with the gear head.

2. The starter reliability test apparatus according to claim 1, characterized in that: the load generating mechanism is a magnetic powder clutch, the load mounting seat comprises two groups of mounting brackets, the lower end of the load mounting seat is fixed on the adjustable base, and the upper end of the load mounting seat is fixedly connected with the magnetic powder clutch.

3. The starter reliability test apparatus according to claim 2, characterized in that: the power output mechanism comprises a universal joint and a connecting rod, one end of the universal joint is connected with an output shaft corresponding to the magnetic powder clutch, the other end of the universal joint is connected with the connecting rod, a flange is arranged at the other end of the connecting rod, and the flange is used for being connected with an engine flywheel.

4. The starter reliability test apparatus according to claim 3, characterized in that: the adjustable base comprises a bottom plate, a first movable plate and a second movable plate which are sequentially arranged from bottom to top, the first movable plate and the second movable plate and the first movable plate and the bottom plate are connected through linear slide rail assemblies, the sliding directions of the two groups of linear slide rail assemblies are perpendicular to each other, and the starter mounting seat and the load mounting seat are mounted on the upper surface of the second movable plate.

5. The starter reliability test apparatus according to claim 4, characterized in that: and a door-shaped frame is arranged on one side of the second movable plate, which is positioned on the flange at the end part of the connecting rod, the lower end of the door-shaped frame is fixed on the second movable plate, the connecting rod penetrates through the door-shaped frame, and the door-shaped frame is used for being connected with an engine flywheel shell.