CN217542388U - Inertia loading fatigue life test bed capable of directly measuring output torque - Google Patents

Abstract

The utility model discloses an inertial loading fatigue life test bench which can directly measure the output torque. The output end is connected, the inertial device is supported on the output shaft of the test piece to be tested through a bearing, and further comprises: a torque meter, connected with the output end of the test piece to be tested; a hollow shaft, mounted on the test bench base, It is coaxial with the output shaft of the test piece to be tested, and the output shaft is located in the hollow shaft. A torque meter is installed at the output end of the test piece of the reducer to be tested, and the torque value parameter of the test piece of the reducer to be tested is detected by the torque meter, and the inertial load of the inertial device is used to ensure the accuracy of the test results.

Description

An inertial loading fatigue life test bench that can directly measure the output torque

technical field

The utility model relates to the technical field of fatigue life test benches, in particular to an inertial loading fatigue life test bench which can directly measure output torque.

Background technique

The service life of the reducer is a key application indicator of the reducer. The current reducer fatigue life test bench usually uses an inertia disk to simulate the actual working conditions of the reducer for loading. The inertia disk is connected to the output end of the reducer under test. The reducer is supported. At this time, the reducer bears the bending moment generated by the weight of the inertia disc. Due to the large weight of the inertia plate, the reducer bears a large bending moment; The process is cumbersome and time-consuming. Chinese patent CN202121274632.9 is a reducer fatigue life test bench, which discloses a base, a motor, a mounting shaft, an inertia disc and a reducer to be tested. The reducer to be tested is installed in the first through hole through a second through hole. It is connected to the inertia disc through the second adapter flange. When disassembling and assembling, only the second adapter flange needs to be disassembled and assembled, and there is no need to disassemble and assemble the inertia plate. The operation is simple, the installation is convenient, the time of disassembling and assembling the inertia plate is saved, and the Work efficiency, in addition, the weight of the inertia disc and the second adapter flange is borne by the bearing, and the resulting bending moment is also borne by the bearing. The reducer to be tested does not bear the bending moment generated by the inertia plate, which solves the problem of the output of the reducer to be measured. The end bears the problem of excessive bending moment.

However, in this test bench, the torque value parameters of the output end of the reducer cannot be detected, and the performance test results of the reducer cannot be fully and intuitively understood.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide an inertial loading fatigue life test bench that can directly measure the output torque. The torque value parameters of the reducer test piece, through the inertial load of the inertial device, ensure the accuracy of the test results.

The utility model is achieved through the following technical solutions:

An inertial loading fatigue life test bench that can directly measure output torque, including a test bench base, a driving device, an inertial device and a test piece to be tested, the driving device and the test piece to be tested are installed on the test bench base, and the The input shaft of the test piece to be tested is connected to the output end of the drive device, and the inertial device is supported on the output shaft of the test piece to be tested through bearings, and also includes:

a torque meter, connected to the output end of the test piece to be tested;

a hollow shaft, mounted on the base of the test bench and coaxially arranged with the output shaft of the test piece to be tested, and the output shaft is located in the hollow shaft;

The inertial device is mounted on the hollow shaft through a bearing, and works with the driving device to drive the test piece to be tested to drive the inertial device and the torque meter to rotate around the hollow shaft with the bearing as a fulcrum.

Further, it also includes a torque transmission shaft installed at the inner center of the hollow shaft, one end of the torque transmission shaft is connected to the output end of the test piece to be tested, and the other end is connected to the torque meter.

Further, the inertial device and the output shaft of the DUT are connected on the same side of the torque meter.

Further, the torque meter is a disc torque meter, comprising a strain sensing device, a rotational speed measurement module, a first connection port, a second connection port and a feedback module.

Further, the first connection port and the second connection port may be on the same side or on the opposite side, and the torque meter is connected to the outside through the first connection port or/and the second connection port.

Furthermore, an angle sensor is also provided at the central position of the torque meter.

Further, the test bench base includes a base and a reducer mounting bracket, the reducer mounting bracket is mounted on the base, and the outer shell of the test piece to be tested is fixed on the base through a mounting flange. on the mounting bracket described above.

Compared with the prior art, the beneficial effects of the present utility model are:

1. In the present utility model, a torque meter is installed and connected to the output end of the test piece of the reducer to be tested, and the torque value parameter of the test piece of the reducer to be tested is detected by the torque meter, and the inertial load of the inertial device is used to ensure the accuracy of the test results. .

2. The torque meter in the present invention also includes a rotational speed measurement module and an angle sensor, which can detect multiple parameter values of rotational speed and rotation angle while detecting the torque value parameter, so as to realize the performance detection of the reducer to be tested more comprehensively and intuitively.

Description of drawings

1 shows a cross-sectional view of a fatigue life test bench according to an embodiment of the present invention;

2 shows a schematic structural diagram of a torque meter provided by an embodiment of the present invention;

FIG. 3 is a schematic diagram of the structural connection of the torque meter in the utility model.

Description: 1. Test stand base; 2. Driving device; 3. Inertia device; 4. DUT to be tested; 5. Input shaft of DUT to be tested; 6. Bearing; 7. Output shaft of DUT to be tested; 8. Torque meter; 9. Hollow shaft; 10. Torque transmission shaft; 11. Strain sensing device; 12. Connection port one; 13. Connection port two; 14. Speed measurement module; 15. Angle sensor; 16. Base; 17. Reducer mounting bracket; 18. Mounting flange.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

In order to make the technical means, creation features, achievement goals and effects of the present invention easy to understand and understand, the present invention will be further described below with reference to the specific embodiments. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" The orientation or positional relationship indicated by "" etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation is therefore not to be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance, and the terms "installed", "provided with", "connected", etc., should be understood in a broad sense, such as "Connection" 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 an indirect connection through an intermediate medium, and it can be two elements Internal connectivity. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Please refer to Figure 1-3, the inertial loading fatigue life test bench includes a test bench base 1, a driving device 2, an inertial device 3 and a test piece 4 to be tested. The driving device 2 and the test piece 4 to be tested are installed on the test bench On the base 1, the input shaft of the test piece 4 to be tested is connected to the output end of the drive device 2, the inertial device 3 is supported on the output shaft of the test piece 4 to be tested through the bearing 6, and also includes:

The torque meter 8 is connected with the output end of the test piece 4 to be tested;

The hollow shaft 9 is installed on the test bench base 1, and is coaxially arranged with the output shaft of the test piece 4 to be tested, and the output shaft is located in the hollow shaft 9;

The inertial device 3 is installed on the hollow shaft 9 through the bearing 6, and works with the driving device 2 to drive the test piece 4 to drive the inertial device 3 and the torque meter 8 around the hollow shaft with the bearing 6 as a fulcrum. Shaft 9 turns.

In the utility model, a torque meter 8 is installed and connected to the output end of the test piece of the reducer to be tested, the torque value parameter of the test piece of the reducer to be tested is detected by the torque meter 8, and the inertial load of the inertial device 3 is used to ensure the accuracy of the detection result. sex.

As described in Figure 1 and 2, in the technical scheme of the present utility model:

It also includes a torque transmission shaft 10 installed at the inner center of the hollow shaft 9 , one end of the torque transmission shaft 10 is connected to the output end of the test piece 4 to be tested, and the other end is connected to the torque meter 8 .

The output end of the test piece of the reducer to be tested is connected to the torque meter 8 through the torque transmission shaft 10, and the torque value parameter of the reducer is detected and output by the torque meter 8, which is more intuitive to connect the torque parameter performance of the reducer to be tested.

Specifically, the inertial device 3 and the output shaft of the DUT 4 are connected on the same side of the torque meter 8 .

As shown in Figure 2, in the technical scheme of the present utility model:

The torque meter 8 is a disc torque meter, and includes a strain sensing device 11 , a rotational speed measurement module 14 , a connection port 12 , a connection port 2 13 and a feedback module.

The data signal detected by the strain sensing device 11 is output through the connection port 1 12 , and the data signal detected by the rotational speed measurement module 14 is output through the connection port 2 13 .

Specifically, the first connection port 12 and the second connection port 13 may be on the same side or on the opposite side, and the torque meter 8 is connected to the outside through the first connection port 12 and the second connection port 13 .

The torque parameter value and the rotational speed parameter value detected by the torque meter 8 are output to the external server through the connection port one 12 and the connection port two 13 .

Specifically, an angle sensor 15 is also provided at the central position of the torque meter 8 .

In the present invention, the torque meter 8 also includes a rotational speed measurement module 14 and an angle sensor 15, which can detect multiple parameter values of rotational speed and rotation angle while detecting the torque value parameter, so as to realize the performance detection of the reducer to be tested more comprehensively and intuitively.

As shown in Figure 1, in the technical scheme of the present utility model:

The test bench base 1 includes a base 16 and a reducer mounting bracket 17, the reducer mounting bracket 17 is mounted on the base 16, and the outer shell of the test piece 4 to be tested passes through the mounting flange 18 is fixed on the mounting bracket.

Although the present utility model discloses embodiments and accompanying drawings, those skilled in the art can understand that various replacements, changes and modifications are possible without departing from the spirit and scope of the present utility model and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and the accompanying drawings.

Claims (7)

1. An inertial loading fatigue life test bench that can directly measure the output torque, including a test bench base, a driving device, an inertial device and a test piece to be tested, and the driving device and the test piece to be tested are installed on the test bench base , the input shaft of the test piece to be tested is connected with the output end of the driving device, and the inertial device is supported on the output shaft of the test piece to be tested through a bearing, which is characterized in that it also includes: a torque meter, connected to the output end of the test piece to be tested; a hollow shaft, mounted on the base of the test bench and coaxially arranged with the output shaft of the test piece to be tested, and the output shaft is located in the hollow shaft; The inertial device is mounted on the hollow shaft through a bearing, and works with the driving device to drive the test piece to be tested to drive the inertial device and the torque meter to rotate around the hollow shaft with the bearing as a fulcrum. 2. An inertial loading fatigue life test bench capable of directly measuring output torque according to claim 1, characterized in that, further comprising a torque transmission shaft, mounted on the inner center of the hollow shaft, the One end is connected to the output end of the DUT, and the other end is connected to the torque meter. 3 . The inertial loading fatigue life test bench according to claim 1 , wherein the inertial device and the output shaft of the DUT are connected on the same side of the torque meter. 4 . 4. a kind of inertial loading fatigue life test bench that can directly measure output torque according to claim 1, is characterized in that, described torque meter is disk type torque meter, comprises strain sensing device, rotational speed measurement module, connection port-1. , Connect the second port with the feedback module. 5. A kind of inertial loading fatigue life test bench that can directly measure output torque according to claim 4, is characterized in that, described connection port 1 and connection port 2 are on the same side or different side, and described torque meter is connected by connecting Port one or/and connection port two are connected to the outside. 6. An inertial loading fatigue life test bench capable of directly measuring output torque according to claim 4, characterized in that an angle sensor is further provided at the center position of the torque meter. 7. The inertial loading fatigue life test bench according to claim 1, wherein the test bench base comprises a base and a reducer mounting bracket, and the reducer mounting bracket is mounted on the base, and the shell of the test piece to be tested is fixed on the mounting bracket through the mounting flange.

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