Static torsion test bench

Abstract

The utility model relates to a static torsion test stand, which belongs to the technical field of static torsion test equipment and comprises a stand base, and a drive axle assembly, a speed reducer, a dynamic torque sensor for detecting torque, a half shaft assembly and a drive motor are mounted on the stand base. The driving motor, the dynamic torque sensor, the speed reducer, the half shaft assembly and the driving axle assembly are connected in sequence and are arranged in a linear shape; after the structure is adopted, the test bench has the advantages that the torque and the rotating speed are controlled through the driving motor, the power is decelerated and increased through the speed reducer of the test bench and is transmitted to the fixed end of the test bench through the dynamic torque sensor, a tested piece is tested, and the test torque is transmitted through the dynamic torque sensor and recorded in real time; the static torsion testing device has the advantages of being simple and compact in structure, convenient to manufacture and install, high in loading precision, stable in loading, easy to control in the loading process and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of static torsion testing equipment, in particular to a static torsion testing platform. Background Art

[0002] Used for rotating torque strength test of drive axles, reduction gearboxes, half shafts and other shafts. The static torsion test bench is an experimental device for testing torque. In actual production, many components such as drive shafts, gears, reduction gearboxes, etc. are torsion components, and the failure frequency is very high, which affects the use and life of the parts. Therefore, it is necessary to use a static torsion test bench to test the static torsion strength of shaft parts, collect the corresponding torque and angle, so as to obtain its yield limit, and obtain the strength requirements of the parts through data collection and calculation.

[0003] The drive shaft is an important component for transmitting power in the transmission system. The end connection forms of the drive shaft are various and have different characteristics. Whether the design is appropriate affects the reliable transmission of power. Therefore, the reasonable selection of the drive shaft end form is an important aspect to be considered in the design. The static torque test of the drive shaft is an important part of the automotive parts test.

[0004] Utility model patent CN02276716.9 discloses a static torque test bench for hydraulic automobile transmissions. This patent is for static torque testing of hydraulic automobile transmissions. It is highly targeted, cannot be used universally, and cannot implement multi-project functional testing. Utility Model Content

[0005] The utility model aims to solve the above technical problems and provides a static torsion test bench.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0007] A static torque test bench comprises a bench base, on which a drive axle assembly, a reducer, a dynamic torque sensor for detecting torque, a half-axle assembly and a drive motor are installed;

[0008] The drive motor, dynamic torque sensor, reducer, half-axle assembly and drive axle assembly are connected in sequence and arranged in a straight line;

[0009] The drive axle assembly comprises an axle assembly and a bridge side fixing bracket arranged on a platform base for limiting the output shaft of the axle assembly, and axle housing fixing brackets for fixing the axle assembly housing are installed on both sides of the axle assembly;

[0010] The half-axle assembly includes a power transmission shaft and an input fixed bracket and a bearing seat arranged on a bench base. One end of the power transmission shaft is connected to the bridge assembly and the other end is connected to a dynamic torque sensor.

[0011] Preferably, the bridge side fixing bracket and the platform base are fixedly connected by bolts, and the bridge housing fixing bracket and the bridge side fixing bracket are fixedly connected by bolts.

[0012] Preferably, a first coupling and a second coupling are installed on both sides of the dynamic torque sensor, the output end of the reducer is connected to the first coupling, and a power output shaft is installed on the side of the second coupling away from the dynamic torque sensor.

[0013] Preferably, the power output shaft is arranged in a bearing seat, and one end of the power output shaft away from the second coupling is connected to the power transmission shaft.

[0014] Preferably, a first protective shell for protection is slidably mounted on the stand base, and a second protective shell for protection is slidably mounted on the outer side of the first protective shell.

[0015] Preferably, the driving motor and the reducer are both fixedly connected to the platform base via a mounting bracket.

[0016] After adopting the above structure, the utility model has the following advantages:

[0017] The utility model controls the torque and speed by driving the motor, the power is decelerated and torque increased by the reducer of the test bench, and is transmitted to the fixed end of the test bench through the dynamic torque sensor, and the test piece is tested. The test torque is transmitted and recorded in real time by the dynamic torque sensor, and the purpose of static torque test is carried out. The utility model has the characteristics of simple and compact structure, easy manufacture and installation, high loading accuracy, stable loading, and easy control during the loading process.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal installation of the utility model.

[0022] As shown in the figure: 1. Controller; 2. Drive motor; 3. Reducer; 4. First coupling; 5. Dynamic torque sensor; 6. Second coupling; 7. Bearing seat; 8. Power output shaft; 9. Test bench base; 10. Power transmission shaft; 11. Bridge side fixing bracket; 12. Input fixing bracket; 13. Bridge assembly; 14. First protective shell; 15. Bridge shell fixing bracket; 16. Second protective shell. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] The utility model is further described in detail below in conjunction with the full text.

[0026] Combined with Figure 1 and Figure 2 A static torque test bench includes a bench base 9, on which a drive axle assembly, a reducer 3, a dynamic torque sensor 5 for detecting torque, a half-axle assembly and a drive motor 2 are installed. The multifunctional test items include a drive axle assembly test, a reducer assembly test, and various half-axle tests.

[0027] When the utility model is implemented, Figure 2 As shown, the drive motor 2, dynamic torque sensor 5, reducer 3, half-axle assembly and drive axle assembly are connected in sequence and arranged in a straight line; specifically, the drive motor 2, reducer 3, first coupling 4, dynamic torque sensor 5, second coupling 6, power output shaft 8, power transmission shaft 10 and axle assembly 13 are connected in sequence and arranged in a straight line. The test bench is 2.5 meters long and can test a variety of products, with space reserved for expansion. The platform is arranged in a straight line as a whole, and the platform base 9 in the detection area of ​​the platform is reserved with corresponding slots for installing various fixtures to meet the diverse component tests.

[0028] It is connected to the fixed end of the test bench and the bench base 9 through a special fixing fixture, and is also provided with a controller 1 for controlling the drive motor 2 to control the drive motor 2 to provide torque to test the test piece. The test torque is transmitted through the dynamic torque sensor 5 and recorded in real time.

[0029] The drive axle assembly includes a bridge assembly 13 and a bridge side fixing bracket 11 arranged on a platform base 9 for limiting the output shaft of the bridge assembly 13, and bridge shell fixing brackets 15 for fixing the outer shell of the bridge assembly 13 are installed on both sides of the bridge assembly 13; the fixing method of the bridge assembly 13 includes: a structure for fixing the bridge shell, a structure for fixing the wheel side, and a structure for fixing the motor interface.

[0030] The half-axle assembly includes a power transmission shaft 10 and an input fixed bracket 12 and a bearing seat 7 arranged on a bench base 9. One end of the power transmission shaft 10 is connected to the bridge assembly 13 and the other end is connected to the dynamic torque sensor 5.

[0031] like Figure 2 As shown, the drive motor 2 and the reducer 3 are fixedly connected to the gantry base 9 through the mounting bracket, the bridge side fixing bracket 11 and the gantry base 9 are fixedly connected by bolts, and the bridge housing fixing bracket 15 and the bridge side fixing bracket 11 are fixedly connected by bolts. Waist holes are provided on the gantry base 9, the bridge side fixing bracket 11, the gantry base 9 and the mounting bracket, and the bolts are upper bolts. Multiple nuts can be used on the outside of the bolts. When installing the bridge side fixing bracket 11, the gantry base 9 and the mounting bracket, overhead and height adjustment can be achieved, such as two nuts clamping the bracket, and a distance is left between the brackets.

[0032] A first coupling 4 and a second coupling 6 are installed on both sides of the dynamic torque sensor 5 , the output end of the reducer 3 is connected to the first coupling 4 , and a power output shaft 8 is installed on the side of the second coupling 6 away from the dynamic torque sensor 5 .

[0033] The power output shaft 8 is installed in the bearing seat 7 , and one end of the power output shaft 8 away from the second coupling 6 is connected to the power transmission shaft 10 .

[0034] A first protective shell 14 for protection is slidably mounted on the stand base 9 , and a second protective shell 16 for protection is slidably mounted on the outer side of the first protective shell 14 .

[0035] The test bench is driven by a controllable drive motor 2, which can control torque and speed. The power is decelerated and torque-increased by the test bench reducer 3, and transmitted to the fixed end of the test bench through the first coupling 4, the second coupling 6 and the dynamic torque sensor 5. One end of the test product is fixed to the fixed end of the test bench, and the other end is fixed to the bench base 9.

[0036] The working principle of this utility model:

[0037] The controller 1 controls the driving motor 2 to drive and control the driving motor 2 to provide torque to test the test piece. The driving motor 2 can control the torque and speed. The power is reduced in speed and increased in torque by the test bench reducer 3, and is transmitted to the fixed end of the test bench through the first coupling 4, the second coupling 6 and the dynamic torque sensor 5. The test torque is transmitted through the dynamic torque sensor 5 and recorded in real time.

[0038] The above describes the utility model and its implementation methods, which is not restrictive. What is shown in the full text is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A static torsion test bench, comprising a bench base (9), characterized in that: The platform base (9) is equipped with a drive axle assembly, a reducer (3), a dynamic torque sensor (5) for detecting torque, a half-axle assembly and a drive motor (2); The drive motor (2), the dynamic torque sensor (5), the reducer (3), the half-shaft assembly and the drive axle assembly are connected in sequence and arranged in a straight line; The drive axle assembly comprises an axle assembly (13) and a bridge side fixing bracket (11) arranged on a platform base (9) for limiting an output shaft of the axle assembly (13), and axle housing fixing brackets (15) for fixing an outer shell of the axle assembly (13) are installed on both sides of the axle assembly (13); The half-shaft assembly comprises a power transmission shaft (10) and an input fixed bracket (12) and a bearing seat (7) arranged on a bench base (9); one end of the power transmission shaft (10) is connected to the bridge assembly (13) and the other end is connected to the dynamic torque sensor (5).

2. The static torsion test bench according to claim 1, characterized in that: The bridge side fixing bracket (11) and the platform base (9) are fixedly connected by bolts, and the bridge housing fixing bracket (15) and the bridge side fixing bracket (11) are fixedly connected by bolts.

3. The static torsion test bench according to claim 1, characterized in that: A first coupling (4) and a second coupling (6) are installed on both sides of the dynamic torque sensor (5); the output end of the reducer (3) is connected to the first coupling (4); and a power output shaft (8) is installed on the side of the second coupling (6) away from the dynamic torque sensor (5).

4. The static torsion test bench according to claim 3, characterized in that: The power output shaft (8) is mounted in the bearing seat (7), and one end of the power output shaft (8) away from the second coupling (6) is connected to the power transmission shaft (10).

5. The static torsion test bench according to claim 1, characterized in that: A first protective shell (14) for protection is slidably mounted on the platform base (9), and a second protective shell (16) for protection is slidably mounted on the outer side of the first protective shell (14).

6. The static torsion test bench according to claim 1, characterized in that: The driving motor (2) and the reducer (3) are both fixedly connected to the bench base (9) via a mounting bracket.

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