CN219319747U

CN219319747U - Bearing life test machine

Info

Publication number: CN219319747U
Application number: CN202320158312.XU
Authority: CN
Inventors: 雷勇; 叶帅; 彭雄露; 余江鸿; 严炫; 谭永坚
Original assignee: Hunan University of Technology
Current assignee: Tianjin Jinglun Technology Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-07-07
Anticipated expiration: 2033-02-07

Abstract

A bearing life tester. Including the mounting bracket, set up be used for placing the bearing test subassembly of waiting to measure the bearing above the mounting bracket, the bearing test subassembly is including fixed bearing frame group of waiting to measure the bearing and wear to establish the connecting axle of waiting to measure the bearing inner circle, the middle part cover of connecting axle is equipped with pressure simulation subassembly, connecting axle one side is provided with and is used for the drive connecting axle pivoted drive assembly. The defect that the normal bearing life measuring device simulates the operation condition of the bearing to be measured is inaccurate is overcome.

Description

Bearing life test machine

Technical Field

The utility model belongs to the technical field of bearing measurement, and particularly relates to a bearing life tester.

Background

The current common method for measuring the service life of the bearing is to apply load on the bearing so as to achieve the purpose of simulating the working state of the bearing. The load applied to a bearing is generally simulated by applying pressure to the outer ring of the bearing, and finally, the life of the bearing is measured by observing the state of the bearing.

For the related method, the current partial bearing life measuring instrument applies pressure on the bearing outer ring when carrying out the measuring experiment of the bearing life. However, in reality, the inner ring is generally in direct contact with the shaft body during operation of the bearing, and thus the whole bearing is affected by various forces, and the service life of the bearing is affected by the various forces. The inventor considers that the general measuring bearing device has the defect of inaccurate simulation working condition.

Disclosure of Invention

In order to solve the defect that a device for generally measuring the service life of a bearing simulates the operation condition of the bearing to be measured to be inaccurate, the application provides a bearing service life testing machine.

The application provides a bearing life test machine device adopts following technical scheme: including the mounting bracket, set up be used for placing the bearing test subassembly of waiting to measure the bearing above the mounting bracket, the bearing test subassembly is including fixed bearing frame group of waiting to measure the bearing and wear to establish the connecting axle of waiting to measure the bearing inner circle, the middle part cover of connecting axle is equipped with pressure simulation subassembly, connecting axle one side is provided with and is used for the drive connecting axle pivoted drive assembly.

Through adopting above-mentioned technical scheme, the bearing that awaits measuring is fixed in the bearing frame group, and the inner circle of bearing that awaits measuring is worn to establish to the connecting axle simultaneously, and drive assembly provides rotation state for the connecting axle, and pressure simulation subassembly provides vertical decurrent load for the connecting axle simultaneously, and the bearing at connecting axle both ends consequently receives multiple effect, and then produces the influence of life-span for the bearing, and the device has accurately simulated the normal operating condition of bearing, has improved the accuracy to the bearing life test that awaits measuring.

Optionally, the pressure simulation assembly comprises a connecting ring sleeved in the middle of the connecting shaft, a counterweight for providing simulation pressure for the connecting shaft, and a connecting rope with one end connected with the connecting ring and the other end connected with the counterweight.

By adopting the technical scheme, the staff can set the weight of the counterweight by himself, and then accurately simulate the load born by the measured bearing during actual operation. The weight of the counterweight can be adjusted, namely the selection range of the bearing to be measured for working conditions is increased.

Optionally, the mounting bracket below is provided with the base, the base is placed subaerial, pressure simulation subassembly is still including setting up the steering block at the base upper surface, the both ends of steering block all are provided with the pulley, the connecting rope passes in proper order the pulley.

Through adopting above-mentioned technical scheme, the setting of pulley on the steering block has changed the direction of connection of connecting rope for the rationality of relevant part mounted position has improved the stability of simulation pressure simultaneously.

Optionally, the bearing test assembly further comprises a belt wheel arranged at one end of the connecting shaft, and the driving assembly comprises a driving motor arranged on the upper surface of the mounting frame, and a driving belt connected with the output end of the driving motor and the belt wheel.

Through adopting above-mentioned technical scheme, use driving motor and drive belt to carry out the rotation of connecting axle for the transmission operation between them is steady, low noise, low vibration, and simple structure, adjustment are convenient.

Optionally, the bearing frame group includes first bearing frame and second bearing frame, the both ends of connecting axle are fixed respectively first bearing frame with on the second bearing frame, be provided with on the mounting bracket and be used for supporting first fixed block and the second fixed block of first bearing frame and second bearing frame.

Through adopting above-mentioned technical scheme, the setting of first fixed block and second fixed block for the below of connecting axle can form open-ended recess, has also increased the space of connecting axle below promptly, makes the go-between can have sufficient space setting on the connecting axle, also provides the space for the setting of band pulley simultaneously.

Optionally, the first bearing seat and the second bearing seat are both provided with sensors, and the sensors can acquire data information and transmit the data information to display and monitoring equipment.

Through adopting above-mentioned technical scheme, the vibration signal of the bearing that awaits measuring of corresponding position can be received in the setting of sensor, and the staff can be through the audio-visual apparent interior bearing that awaits measuring of first bearing frame or second bearing frame of waiting measuring of display and supervisory equipment.

In summary, the present application includes at least one of the following beneficial technical effects.

1. The two ends of the connecting shaft are respectively arranged on the bearing seat and are contacted with the inner ring of the bearing to be measured, and the pressure simulation assembly and the driving assembly are arranged, so that the running condition of the bearing is simulated more truly, and the accuracy of life measurement is improved.

2. The steering block and the pulley arranged on the steering block change the connection direction of the connecting rope, so that the installation position of related parts is more reasonable, and the stability of the simulation pressure is improved.

3. The weight is set, so that a worker can set the weight of the weight by himself, and the load born by the measured bearing during actual running is accurately simulated.

Drawings

Fig. 1 is a first structural diagram of a bearing life tester.

Fig. 2 is a second structural diagram of a bearing life tester.

FIG. 3 is a block diagram of a bearing test assembly and a drive assembly.

Reference numerals illustrate: 1. a base; 2. a mounting frame; 3. a bearing test assembly; 4. a bearing seat group; 5. a first bearing seat; 6. a second bearing seat; 7. a connecting shaft; 8. a belt wheel; 9. a drive assembly; 10. a driving motor; 11. a transmission belt; 12. a first fixed block; 13. a second fixed block; 14. a pressure simulation assembly; 15. a connecting ring; 16. a connecting rope; 17. a counterweight; 18. a steering block; 19. a pulley; 20. a sensor.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses a bearing life test machine. Referring to fig. 1, the device comprises a base 1, a mounting frame 2 arranged on the upper surface of the base 1, a bearing test assembly 3 arranged on the mounting frame 2, a pressure simulation assembly 14 arranged below the bearing test assembly 3, and a driving assembly 9 arranged on the mounting frame 2 and used for driving the bearing test assembly 3.

The bearing to be measured is placed in the bearing test assembly 3, so that a mounting mode under a normal running state is provided for the bearing, and the accuracy of a life test is ensured. In addition, the drive assembly 9 provides rotational power to the bearing to be measured mounted in the bearing test assembly 3. The pressure simulation assembly 14 provides a load proximate to the operating condition for the bearing to be measured in the bearing test assembly 3.

Referring to fig. 2, the mounting frame 2 is integrally provided with the first fixing block 12 and the second fixing block 13, and the arrangement of the first fixing block 12 and the second fixing block 13 is more reasonable for the mounting mode of the bearing test assembly 3, the driving assembly 9 and the pressure simulation assembly 14, so that the running stability of the testing machine is ensured.

The bearing test assembly 3 comprises a bearing seat group 4, wherein the bearing seat group 4 comprises a first bearing seat 5 which is installed on a first fixed block 12 through a screw, and a second bearing seat 6 which is installed on a second fixed block 13 through a screw, and bearings to be measured are installed in the first bearing seat 5 and the second bearing seat 6. The bearing test assembly 3 further comprises a connecting shaft 7 penetrating through the bearing inner ring to be measured and a belt pulley 8 integrally arranged at one end, far away from the second bearing seat 6, of the connecting shaft 7.

Referring to fig. 3, the driving assembly 9 includes a driving motor 10 mounted on the upper surface of the mounting frame 2 by screws, and a driving belt 11 connecting an output end of the driving motor 10 and the pulley 8. The driving belt 11 runs under the driving of the driving motor 10, so that the driving belt 11 drives the belt pulley 8, namely, the rotation of the connecting shaft 7 is finally realized, namely, the driving work of the testing machine is realized. In addition, the transmission mode of the transmission belt 11 is stable in transmission operation, low in noise and vibration, simple in structure and convenient to adjust.

Referring to fig. 1 to 3, the pressure simulation assembly 14 includes a connection ring 15 sleeved at the middle of the connection shaft 7, a weight 17 provided at one side of the base 1, and a connection rope 16 having one end tied to the bottom of the connection ring 15 and the other end tied to the weight 17.

The connecting ring 15 is a special bearing, and a block body for tying one end of the connecting rope 16 is connected below the outer ring through threads.

The weight of the counterweight 17 can be adjusted, when the weight is needed to be adjusted, the connecting ropes 16 tied at the upper ends of the counterweights 17 are firstly loosened, the counterweights 17 with different weights are replaced, and one ends of the connecting ropes 16 are tied again, so that the simulation change of different pressures is realized.

The pressure simulation assembly 14 further comprises a steering block 18 fixed to the base 1 by screws, and two pulleys 19 are mounted at both ends of the steering block 18. The connecting rope 16 passes through the two pulleys 19 in turn, so that reasonable placement of the positions of the weights 17 is realized, and stability of the simulated load is improved.

Referring to fig. 1 to 3, a sensor 20 is mounted on each of the first bearing housing 5 and the second bearing housing 6. One end of the sensor 20 is contacted with the outer ring of the bearing to be measured, and by receiving the vibration signal of the bearing to be measured, the sensor 20 can acquire data information and transmit the data information to display and monitoring equipment, so that real-time observation of a worker on the bearing to be measured is realized.

The first bearing pedestal 5 is close to the driving end of the connecting shaft 7, and the second bearing pedestal 6 is far away from the driving end of the connecting shaft 7, namely, the life test of the bearing to be measured under two working states is realized, and a worker can receive respective signals through the sensors 20 at two positions, and according to the data display of the display and monitoring equipment, the worker can determine the service lives of the bearings at different positions on the shaft.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a bearing life test machine, is in including mounting bracket (2), setting be used for placing bearing test subassembly (3) of waiting to measure the bearing above mounting bracket (2), bearing test subassembly (3) are including fixed bearing frame group (4) of waiting to measure the bearing and wear to establish connecting axle (7) of waiting to measure the bearing inner race, its characterized in that: the middle part cover of connecting axle (7) is equipped with pressure simulation subassembly (14), connecting axle (7) one side is provided with and is used for driving connecting axle (7) pivoted drive assembly (9).

2. A bearing life tester according to claim 1, wherein: the pressure simulation assembly (14) comprises a connecting ring (15) sleeved at the middle part of the connecting shaft (7), a counterweight (17) for providing simulation pressure for the connecting shaft (7), and a connecting rope (16) with one end connected with the connecting ring (15) and the other end connected with the counterweight (17).

3. A bearing life tester according to claim 2, wherein: the utility model discloses a pressure simulation device, including installation frame (2), pressure simulation subassembly (14), installation frame (2) below is provided with base (1), base (1) are placed subaerial, pressure simulation subassembly (14) still including setting up steering block (18) at base (1) upper surface steering block (18) both ends all are provided with pulley (19), connecting rope (16) pass in proper order pulley (19).

4. A bearing life tester according to claim 1, wherein: the bearing test assembly (3) further comprises a belt wheel (8) arranged at one end of the connecting shaft (7), and the driving assembly (9) comprises a driving motor (10) arranged on the upper surface of the mounting frame (2), and a transmission belt (11) connected with the output end of the driving motor (10) and the belt wheel (8).

5. A bearing life tester according to claim 1, wherein: the bearing pedestal group (4) comprises a first bearing pedestal (5) and a second bearing pedestal (6), two ends of the connecting shaft (7) are respectively fixed on the first bearing pedestal (5) and the second bearing pedestal (6), and a first fixing block (12) and a second fixing block (13) which are used for supporting the first bearing pedestal (5) and the second bearing pedestal (6) are arranged on the mounting frame (2).

6. A bearing life tester according to claim 5, wherein: the first bearing seat (5) and the second bearing seat (6) are both provided with sensors (20), and the sensors (20) can acquire data information and transmit the data information to display and monitoring equipment.