Elastic support testing tool for bearing bush type gearbox

Abstract

The utility model discloses a bearing bush type gear box elastic support test tool comprising a tool pedestal, the tool pedestal is provided with a pre-pressing assembly, the tool pedestal is provided with an elastic support, the elastic support is provided with a main shaft, the main shaft is provided with a split type side connection assembly, and the split type side connection assembly is provided with a bearing bush type gear box. A split type side connecting assembly is arranged on the tool base, a pressed assembly is arranged on the split type side connecting assembly, an auxiliary groove is formed between the tool base and the pre-pressing assembly, a positioning assembly is arranged in the auxiliary groove, and the tool base and the pre-pressing assembly are connected through a connecting and fastening assembly. The beneficial effects of the elastic support test tool are that the elastic support test tool of the technical scheme is ingenious in structural design, strong in practicality and convenient to assemble, and by applying the elastic support test tool, the test convenience is effectively improved, and the test stability is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing fixtures, in particular to a bearing bush type gear box elastic support testing fixture. Background Art

[0002] Gearboxes have a wide range of applications, such as in wind turbines. Gearboxes are an important mechanical component that is widely used in wind turbines. Their main function is to transmit the power generated by the wind rotor under the action of wind to the generator and make it obtain the corresponding speed. Usually, the speed of the wind rotor is very low, far from the speed required by the generator to generate electricity. It must be achieved through the speed-increasing effect of the gear pair of the gearbox, so the gearbox is also called a speed increaser.

[0003] During the production process of the gearbox, the elastic support of the gearbox needs to be tested. The existing test fixture has a complex structure, is inconvenient to operate, has poor stability, and is inconvenient to install and disassemble. Therefore, a bearing-type gearbox elastic support test fixture is designed. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and to design a bearing bush type gear box elastic support test fixture.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a bearing-type gearbox elastic support test tool comprises a tool base, a pre-stressing assembly is provided on the tool base, an elastic support is provided on the tool base, a main shaft is provided on the elastic support, a split side connection assembly is provided on the main shaft, a pressure assembly is provided on the split side connection assembly, an auxiliary groove is provided between the tool base and the pre-stressing assembly, a positioning assembly is provided in the auxiliary groove, and the tool base and the pre-stressing assembly are connected by a connecting fastening assembly.

[0006] As a further description of the present technical solution, the pre-pressing assembly includes a pre-pressing plate arranged on a tooling base, a first mounting groove is provided on the pre-pressing plate, and an elastic support is provided in the first mounting groove.

[0007] As a further description of the present technical solution, a second mounting groove is provided on the tooling base, and an elastic support is provided in the second mounting groove.

[0008] As a further description of the present technical solution, a main shaft is provided between the elastic support on the tooling base and the elastic support on the pre-pressing assembly.

[0009] As a further description of the present technical solution, the split side connection assembly includes lower side plates arranged at both ends of the main shaft, and an upper side plate connected to the lower side plates, and a pressure assembly is arranged on the top of the upper side plate.

[0010] As a further description of the present technical solution, a main shaft is provided between the upper side plate and the lower side plate, side plates are provided with side plate locking fixing plates on the upper side plate and the lower side plate, and fixing screws are provided on the side plate locking fixing plates.

[0011] As a further description of the present technical solution, the pressure component includes a pressure plate arranged on the top of the upper side plate, and a reserved connection hole is provided on the pressure plate.

[0012] As a further description of the present technical solution, the positioning assembly includes a positioning pin arranged in an auxiliary groove.

[0013] As a further description of the present technical solution, the connection and fastening assembly includes a stud, and locking nuts are provided at both ends of the stud.

[0014] The beneficial effect is that the elastic support test fixture of this technical solution has an ingenious structural design, strong practicality, and is easy to assemble. The use of this elastic support test fixture effectively improves the convenience of the test and also improves the stability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the utility model team elastic support stiffness test tool;

[0017] Figure 3 It is a schematic diagram of the installation structure of the single-piece elastic support stiffness testing tool of the utility model.

[0018] In the figure, 1. tooling base; 2. pre-stressing assembly; 3. elastic support; 4. main shaft; 5. split side connection assembly; 6. pressure assembly; 7. auxiliary groove; 8. positioning assembly; 9. connection and fastening assembly; 10. pre-stressing plate; 11. first mounting groove; 12. second mounting groove; 13. lower side plate; 14. upper side plate; 15. side plate locking and fixing plate; 16. fixing screw; 17. pressure plate; 18. reserved connection hole; 19. positioning pin; 20. stud; 21. locking nut. DETAILED DESCRIPTION

[0019] First of all, the design intention of the present invention is explained. During the production process of the gearbox, the elastic support of the gearbox needs to be tested. The existing testing tooling has a complex structure, is inconvenient to operate, has poor stability, and is inconvenient to install and disassemble. Therefore, the present invention designs a bearing-type gearbox elastic support testing tooling.

[0020] The present invention will be described in detail below with reference to the accompanying drawings. Figure 1-Figure 3As shown, the bearing bush type gearbox elastic support test tool comprises a tool base 1 , the tool base 1 is provided with a second mounting groove 12 , and the elastic support 3 is provided in the second mounting groove 12 .

[0021] A main shaft 4 is provided between the elastic support 3 on the tooling base 1 and the elastic support 3 on the pre-pressing assembly 2 to simulate the torque arm of the wind turbine gearbox.

[0022] In order to facilitate pre-compression, a pre-compression component 2 is provided on the tooling base 1. The pre-compression component 2 will be introduced in detail below. The pre-compression component 2 includes a pre-compression plate 10 provided on the tooling base 1, and a first mounting groove 11 is provided on the pre-compression plate 10. An elastic support 3 is provided in the first mounting groove 11; the elastic support 3 is placed on the pre-compression plate 10 to complete the pre-compression.

[0023] An elastic support 3 is provided on the tooling base 1, a main shaft 4 is provided on the elastic support 3, and a split side connection component 5 is provided on the main shaft 4. The split side connection component 5 will be introduced in detail below. The split side connection component 5 includes a lower side plate 13 provided at both ends of the main shaft 4, an upper side plate 14 connected to the lower side plate 13, and a pressure component 6 is provided on the top of the upper side plate 14; the main shaft 4 is provided between the upper side plate 14 and the lower side plate 13, and side plate locking fixing plates 15 are provided on the sides of the upper side plate 14 and the lower side plate 13, and fixing screws 16 are provided on the side plate locking fixing plates 15.

[0024] The split side connection assembly 5 is easy to install, connects the main shaft 4 and the pressure plate 17, and is mainly used for testing and applying loads.

[0025] A pressure-bearing assembly 6 is provided on the split side connection assembly 5. The pressure-bearing assembly 6 will be described in detail below. The pressure-bearing assembly 6 includes a pressure-bearing plate 17 arranged on the top of the upper side plate 14. A reserved connection hole 18 is provided on the pressure-bearing plate 17, which can be connected to the press through a T-nut for pressure-bearing use.

[0026] In order to facilitate the installation of the positioning assembly 8 , an auxiliary groove 7 is provided between the tooling base 1 and the pre-pressing assembly 2 .

[0027] In order to facilitate the alignment of the mounting base and the preload plate 10 during the preloading process, a positioning assembly 8 is provided in the auxiliary groove 7 . The positioning assembly 8 will be described in detail below. The positioning assembly 8 includes a positioning pin 19 provided in the auxiliary groove 7 .

[0028] In order to facilitate the connection and fixation between the tooling base 1 and the pre-pressing component 2, the tooling base 1 and the pre-pressing component 2 are connected by a connecting and fastening component 9. The connecting and fastening component 9 will be introduced in detail below. The connecting and fastening component 9 includes a stud 20, and locking nuts 21 are provided at both ends of the stud 20.

[0029] The above describes the specific structure of the present invention in detail. The following describes the working principle of the present invention: in the team stiffness test, the pressure plate 17 is connected to the upper side plate 14 by bolts, the pressure plate 17 is fixed to the top of the press, the tooling base 1 is placed, the lower elastic support 3 is placed, then the main shaft 4 is placed, the positioning pins 19 are placed on both sides, the upper elastic support 3 is placed, and finally the pre-stressing plate 10 is placed, and it is fastened by four studs 20. Torque is applied to make the tooling base 1 and the pre-stressing plate 10 fit completely. After the pre-stressing is completed, the press is pushed forward so that the upper side plate 14 is just in contact with the main shaft 4, and the test is started; this process simulates the real working state. The connection between the pressure plate 17 and the upper side plate 14 and the press can eliminate the influence of the tooling deadweight. The positioning pin 19 design can ensure that the structure is well centered and easy to operate.

[0030] For the single-piece stiffness test, the pressure plate 17 is connected to the upper side plate 14 by bolts, and the pressure plate 17 is fixed to the top of the press. The lower side plate 13 and the side plate locking and fixing plate 15 are installed. The main shaft 4 is fixed, the tooling base 1 is placed, the elastic support 3 is placed, and the test begins. The pressure plate 17, the upper side plate 14, the lower side plate 13, and the side plate locking and fixing plate 15 are connected to the press to eliminate the influence of the tooling weight, and the main shaft 4 can be raised to facilitate the replacement of the elastic support 3, which is conducive to large-scale testing and a quick assembly process.

[0031] The elastic support 3 test fixture of this technical solution has an ingenious structural design, strong practicality, and is easy to assemble. The use of this elastic support 3 test fixture effectively improves the convenience of the test and also improves the stability of the test.

[0032] The above technical solutions only reflect the preferred technical solutions of the present utility model. Any changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present utility model and fall within the scope of protection of the present utility model.

Claims

1. Bearing type gearbox elastic support test fixture, characterized by: The invention comprises a tool base (1), a pre-pressing assembly (2) is provided on the tool base (1), an elastic support (3) is provided on the tool base (1), a main shaft (4) is provided on the elastic support (3), a split side connection assembly (5) is provided on the main shaft (4), a pressure-bearing assembly (6) is provided on the split side connection assembly (5), an auxiliary groove (7) is provided between the tool base (1) and the pre-pressing assembly (2), a positioning assembly (8) is provided in the auxiliary groove (7), and the tool base (1) and the pre-pressing assembly (2) are connected via a connecting fastening assembly (9).

2. The bearing bush type gearbox elastic support test fixture according to claim 1, characterized in that: The pre-pressing assembly (2) comprises a pre-pressing plate (10) arranged on a tooling base (1), a first mounting groove (11) being provided on the pre-pressing plate (10), and an elastic support (3) being provided in the first mounting groove (11).

3. The bearing bush type gearbox elastic support test fixture according to claim 2, characterized in that: A second installation groove (12) is provided on the tooling base (1), and an elastic support (3) is provided in the second installation groove (12).

4. The bearing bush type gearbox elastic support (3) test fixture according to claim 3 is characterized in that: A main shaft (4) is provided between the elastic support (3) on the tooling base (1) and the elastic support (3) on the pre-pressing assembly (2).

5. The bearing bush type gearbox elastic support test fixture according to claim 1, characterized in that: The split side connection assembly (5) comprises lower side plates (13) arranged at both ends of the main shaft (4) and an upper side plate (14) connected to the lower side plate (13), and a pressure assembly (6) is arranged on the top of the upper side plate (14).

6. The bearing bush type gearbox elastic support test fixture according to claim 5, characterized in that: A main shaft (4) is provided between the upper side plate (14) and the lower side plate (13), and side plate locking and fixing plates (15) are provided on the sides of the upper side plate (14) and the lower side plate (13), and fixing screws (16) are provided on the side plate locking and fixing plates (15).

7. The bearing bush type gearbox elastic support test fixture according to claim 5, characterized in that: The pressure-bearing assembly (6) comprises a pressure-bearing plate (17) arranged on the top of the upper side plate (14), and a reserved connection hole (18) is provided on the pressure-bearing plate (17).

8. The bearing bush type gearbox elastic support test fixture according to claim 1, characterized in that: The positioning assembly (8) includes a positioning pin (19) arranged in the auxiliary groove (7).

9. The bearing bush type gearbox elastic support test fixture according to claim 1, characterized in that: The connection and fastening assembly (9) comprises a stud bolt (20), and locking nuts (21) are provided at both ends of the stud bolt (20).

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