Railway train axle box bearing rapid grease replacement equipment

Abstract

The present invention discloses a rapid grease replacement device for axle box bearings of railway trains, comprising an equipment platform, a bearing seat and a mandrel arranged on the equipment platform, wherein a driving hole for the mandrel to pass through is penetrated in the bearing seat, and an installation cavity for installing an external axle box bearing to be tested is formed between the inner peripheral wall of the driving hole and the outer peripheral wall of the mandrel, and a grease cleaning oil circuit is arranged on the bearing seat for external grease cleaning agent to be poured into the bearing to be cleaned and clean and discharge the old grease in the bearing to be cleaned, and a driving member for driving the mandrel to rotate forward or reverse to realize the forward and reverse rotation of the bearing to be cleaned is arranged on the equipment platform, and a vibrating member for generating vibration and making the old grease in the external bearing to be cleaned and the grease cleaning agent in the grease cleaning oil circuit quickly merge and fully merge is arranged on the bearing seat. The present invention solves the problem that the grease replacement of traditional railway axle box bearings is relatively cumbersome and the bearing needs to be disassembled to clean the stubborn grease inside the bearing.

Description

Technical Field

[0001] The invention relates to the technical field of bearing testing equipment, in particular to a rapid grease changing device for axle box bearings of railway trains. Background Art

[0002] In the prior art, railway axle box bearings need maintenance after running for a period of time to extend the service life of the bearings. However, the traditional maintenance method is to remove the bearings from the bearing seats and disassemble the bearings. The entire disassembly process is labor-intensive and easily causes damage to the bearings and automotive parts. As train customers propose to extend the operating mileage of axle box bearings, the greasing of axle box bearings becomes more important. In order to shorten the maintenance cycle of the train, the grease of the axle box bearings needs to be quickly replaced. Some of the grease that has been used will turn black and stick to the inside of the bearing rollers and sealing rings, making it difficult to discharge the grease, especially at the bottom of the bearing, where gravity makes it more difficult to discharge the grease. Traditional equipment also lacks a disassembly-free and quick-change grease-type axial bearing device. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a rapid grease replacement device for railway train axle box bearings, which solves the problem that the grease replacement of traditional railway axle box bearings is cumbersome and the bearings need to be disassembled to clean the stubborn grease inside the bearings.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a rapid grease replacement device for railway train axle box bearings, comprising an equipment platform, a bearing seat and a core shaft arranged on the equipment platform, the bearing seat is penetrated by a driving hole for the core shaft to pass through, and an installation cavity for installing an external axle box bearing to be tested is formed between the inner peripheral wall of the driving hole and the outer peripheral wall of the core shaft, the bearing seat is provided with a grease cleaning oil circuit for external grease cleaning agent to be injected into the bearing to be cleaned and to clean and discharge the old grease in the bearing to be cleaned, the equipment platform is provided with a driving member for driving the core shaft to rotate forward or reverse to realize the forward and reverse rotation of the bearing to be cleaned, and the bearing seat is provided with a vibrating member for generating vibration and making the old grease in the external bearing to be cleaned and the grease cleaning agent in the grease cleaning oil circuit quickly blend and fully blend.

[0005] The advantages of adopting the above technical scheme are as follows: when it is necessary to discharge and clean the grease inside the bearing, the maintenance personnel inject the external grease cleaning agent into the bearing to be cleaned through the grease cleaning oil circuit, and the grease cleaning agent is integrated with the grease inside the bearing and the integrated grease liquid is discharged to the outside of the bearing through the grease cleaning oil circuit, thereby realizing rapid cleaning of the grease inside the bearing. During the cleaning process, the core shaft can be driven by the driving member to rotate forward or reverse, so that the bearing to be cleaned can rotate forward or reverse synchronously, thereby making the grease inside the bearing more easily dissolve in the grease cleaning agent, so that the grease in various parts of the bearing can be fully dissolved, thereby avoiding the difficulty of cleaning and discharging the grease at the bottom of the bearing, thereby realizing the full integration of the old grease inside the bearing and the grease cleaning agent. At the same time, the vibration member can be started during the grease replacement process, and the vibration member starts and applies a vibration force to the bearing seat. The vibration generated by the vibrating part makes it easier for the grease to dissolve into the grease cleaning agent, thereby achieving full fusion of the old grease inside the bearing and the grease cleaning agent; the above-mentioned technical setting does not require the bearing to be disassembled or split, thereby reducing the difficulty of maintenance, and at the same time, the grease can be quickly replaced in the above-mentioned manner to avoid grease residue and accumulation, thereby improving the maintenance and cleaning efficiency; in the above-mentioned technology, after the old grease and the grease cleaning agent are fully fused, they can be discharged to the outside of the bearing through the grease cleaning oil circuit. After the old grease is drained, the maintenance personnel can inject new grease through the grease cleaning oil circuit, and drive the bearing to rotate forward and reverse through the driving part, thereby achieving the uniform grease distribution of the new grease in the bearing; the grease cleaning agent injected in the above-mentioned technology is a high-pressure, large-flow, volatile grease cleaning agent, thereby achieving the dissolution of stubborn grease, and can quickly discharge grease, thereby improving the grease discharge efficiency and cleaning efficiency.

[0006] The present invention is further provided with: the grease cleaning oil circuit includes an inlet nozzle for injecting external grease cleaning agent into the installation cavity and an outlet nozzle for connecting with an external grease suction pump and discharging the cleaned grease liquid in the installation cavity, the inlet nozzle and the outlet nozzle are both arranged in communication with the installation cavity, a rib for abutting against the side wall of the inner ring of the external bearing to be cleaned is circumferentially opened on the outer peripheral wall of the core shaft, and the starting end of the core shaft is detachably connected with a baffle for combining with the rib to fix the inner ring of the external bearing to be cleaned.

[0007] The advantages of adopting the above technical scheme are as follows: when it is necessary to inject grease cleaning agent, the maintenance personnel inject high-pressure, high-flow, volatile grease cleaning agent through the liquid inlet nozzle, the grease cleaning agent is injected into the installation cavity through the liquid inlet nozzle and poured into the bearing to be cleaned, and the bearing to be cleaned is driven by the driving part to rotate rapidly and drive the grease cleaning agent to surge, so as to achieve full fusion of the old grease and the grease cleaning agent in the bearing, and after the grease is fused, it can be discharged through the liquid outlet nozzle, so as to realize the emptying of the old grease in the bearing; in the above technology, the liquid outlet nozzle is connected to the external grease suction pump, so that the liquid outlet nozzle can quickly suck out the solution of the fused grease, so as to improve the grease removal efficiency and cleaning efficiency; when it is detected that the solution discharged from the liquid outlet nozzle does not contain grease At the same time, maintenance personnel introduce high-pressure dry air through the liquid inlet nozzle and rotate the bearing at a low speed to accelerate the volatilization of the cleaning agent, thereby ensuring that there is no cleaning agent residue inside the bearing; in the above-mentioned technology, the setting of the ribs and baffles can be used to achieve rapid disassembly and assembly of the bearing to be cleaned on the mandrel, while improving the connection strength between the mandrel and the bearing to be cleaned. At the same time, in order to ensure the full safety of the axle box bearing in the later use, in the early verification stage, that is, after the grease is removed, the bearing can be disassembled to observe whether it meets the requirements. After the grease is injected, the bearing is run-in tested and the bearing temperature is observed to see whether it meets the maintenance requirements. The setting of the ribs and baffles is used to ensure that the bearing is disassembled more quickly and easily, thereby improving the maintenance efficiency and detection efficiency.

[0008] The present invention further provides that: the driving member includes a driving motor for cooperating with the core shaft.

[0009] The benefit of adopting the above technical solution is that: in the above technology, the drive motor is arranged to ensure that the bearing can operate.

[0010] The present invention further provides that: a coupling is connected by winding between the output end of the driving motor and the end of the core shaft.

[0011] The advantages of adopting the above technical solution are as follows: in the above technology, the driving motor drives the core shaft to rotate forward and reverse through the winding coupling, thereby realizing the forward and reverse rotation of the bearing to be cleaned.

[0012] The present invention is further provided with: a vibration damping seat is arranged on the equipment platform, and the vibration damping seat is composed of an upper vibration damping plate and a lower vibration damping plate stacked together, the upper vibration damping plate is connected to the bottom of the driving motor, the lower vibration damping plate is connected to the equipment platform, and a vibration damping rubber is connected between the upper vibration damping plate and the lower vibration damping plate.

[0013] The benefit of adopting the above technical solution is that the setting of the vibration damping seat and the vibration damping rubber in the above technology is used to prevent the vibration force from being transmitted to the drive motor when the vibrating member applies a vibration force to the bearing seat, thereby avoiding damage to the drive motor or an unstable connection between the drive motor and the core shaft.

[0014] The present invention is further provided that: both sides of the bearing seat are connected with vibration motors, and the vibration motors are vibration parts.

[0015] The advantages of adopting the above technical solution are as follows: in the above technology, a vibration force is applied to the bearing seat by a vibration motor, thereby improving the full integration of the grease inside the bearing to be cleaned and the grease cleaning agent.

[0016] The present invention further provides that: one of the vibration motors is arranged parallel to the core shaft, and the other vibration motor is arranged perpendicular to the core shaft.

[0017] The benefit of adopting the above technical solution is that: in the above technology, one of the vibration motors is set parallel to the core shaft, and the other vibration motor is set perpendicular to the core shaft, so as to apply vibration force in two directions, thereby improving the degree of fusion between the grease inside the bearing and the grease cleaning agent when cleaning the bearing, thereby improving the cleaning efficiency.

[0018] The present invention further provides that: the vibration motor is a high-frequency vibration motor.

[0019] The advantages of adopting the above technical solution are as follows: the vibration motor in the above technology is a high-frequency vibration motor, which increases the frequency of the vibration force applied to the bearing seat, further improves the degree of integration of the grease inside the bearing and the grease cleaning agent, thereby improving the cleaning efficiency.

[0020] The present invention is further provided that: a vibration damping structure is arranged at the bottom of the bearing seat, the vibration damping structure is composed of a plurality of vibration dampers, each of the vibration dampers is composed of an adjustment seat, a vibration damping spring and a guide column, the adjustment seat is arranged on the equipment table, the end of the vibration damping spring is connected to the end face of the adjustment seat, the starting end of the vibration damping spring is connected to the end of the guide column, and the guide column is connected to the bearing seat.

[0021] The benefits of adopting the above technical solution are: in the above technology, a vibration damping structure is arranged at the bottom of the bearing seat, and the vibration damping structure is composed of multiple shock absorbers. When the vibration motor applies vibration force to the bearing seat, the vibration damping spring is deformed by the force and reciprocates with the vibration frequency to reset, thereby reducing the torque transmission between the bearing seat and the equipment platform, and preventing high vibration force from being transmitted to the equipment, avoiding equipment damage, and at the same time playing a role in supporting the bearing seat.

[0022] The present invention is further provided with: a socket is provided at the bottom of the bearing seat corresponding to each guide column position, a plug column is provided at the top of each guide column for plugging and cooperating with the corresponding socket, a groove is provided on the end face of the adjustment seat for accommodating the end of the damping spring, the inner wall of the groove is provided at the junction with the outer wall of the end of the damping spring, a connecting shaft is provided at the bottom of the adjustment seat, a connecting hole is provided on the equipment platform corresponding to each connecting shaft position, and each connecting shaft is threadedly connected to the corresponding connecting hole.

[0023] The benefits of adopting the above technical solution are: the arrangement of the plug-in column and the plug-in socket in the above technology is used to improve the connection strength between the bearing seat and the shock-absorbing spring, and the arrangement of the receiving groove prevents the shock-absorbing spring from detaching from the adjustment seat and causing shock-absorbing failure; the above technology realizes the rapid disassembly and assembly of the adjustment seat on the equipment table through the threaded connection between the connecting shaft and the connecting hole, and at the same time, the height position of the adjustment seat along the axial direction of the connecting shaft can be adjusted, thereby adjusting the relative height position of the bearing seat on the equipment table. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional view of the present invention;

[0025] Figure 2 It is a partial cross-sectional view of the side of the present invention;

[0026] Figure 3 It is a partial cross-sectional view of the front side of the present invention. DETAILED DESCRIPTION

[0027] The present invention provides a railway train axle box bearing rapid grease replacement device, comprising an equipment platform 1, a bearing seat 2 and a core shaft 11 arranged on the equipment platform 1, wherein a driving hole 21 for the core shaft 11 to pass through the bearing seat 2 is penetrated, and an installation cavity 22 for installing an external axle box bearing to be tested is formed between the inner peripheral wall of the driving hole 21 and the outer peripheral wall of the core shaft 11, and a grease cleaning oil circuit is provided on the bearing seat 2 for external grease cleaning agent to be poured into the bearing to be cleaned and clean and discharge the old grease in the bearing to be cleaned, and a driving member for driving the core shaft 11 to rotate forward or reversely to realize the forward and reverse rotation of the bearing to be cleaned is provided on the equipment platform 1, and a driving member for generating vibration and making the old grease in the external bearing to be cleaned and the grease cleaning agent in the grease cleaning oil circuit interact with each other. The vibrating part can be integrated quickly and fully, the grease cleaning oil circuit includes an inlet nozzle 23 for injecting external grease cleaning agent into the installation cavity 22 and an outlet nozzle 24 for communicating with an external grease suction pump and discharging the cleaned grease liquid in the installation cavity 22, the inlet nozzle 23 and the outlet nozzle 24 are both connected with the installation cavity 22, a rib 111 for abutting against the side wall of the inner ring of the external bearing to be cleaned is provided on the outer peripheral wall of the core shaft 11 in an annular direction, the starting end of the core shaft 11 is detachably connected with a baffle 112 for combining with the rib 111 to fix the inner ring of the external bearing to be cleaned, the driving part includes a driving motor 3 for cooperating with the core shaft 11, a coupling 31 is wound between the output end of the driving motor 3 and the end of the core shaft 11, and the equipment platform 1 A vibration damping seat is arranged on the upper part, and the vibration damping seat is composed of an upper vibration damping plate 32 and a lower vibration damping plate 33 stacked together. The upper vibration damping plate 32 is connected to the bottom of the driving motor 3, and the lower vibration damping plate 33 is connected to the equipment platform 1. A vibration damping rubber 34 is connected between the upper vibration damping plate 32 and the lower vibration damping plate 33. Vibration motors 4 are connected to both sides of the bearing seat 2. The vibration motors 4 are vibrating parts, one of which is parallel to the core shaft 11, and the other is perpendicular to the core shaft 11. The vibration motor 4 is a high-frequency vibration motor 4. A vibration damping structure is arranged at the bottom of the bearing seat 2, and the vibration damping structure is composed of a plurality of vibration dampers 5, and each of the vibration dampers 5 is composed of an adjustment seat 51, a vibration damping spring 52 and a guide column 53. The structure is as follows: the adjustment seat 51 is arranged on the equipment platform 1, the end of the damping spring 52 is connected to the end face of the adjustment seat 51, the starting end of the damping spring 52 is connected to the end of the guide column 53, the guide column 53 is connected to the bearing seat 2, the bottom of the bearing seat 2 is provided with a socket 25 corresponding to each guide column 53, and the top of each guide column 53 is provided with a plug column 54 for plugging and matching with the corresponding socket 25. The end face of the adjustment seat 51 is provided with a groove 511 for accommodating the end of the damping spring 52, and the inner circumferential wall of the groove 511 is arranged at the junction of the outer circumferential wall of the end of the damping spring 52. A connecting shaft 512 is arranged at the bottom of the adjustment seat 51, and a connecting hole 12 is arranged on the equipment platform 1 corresponding to each connecting shaft 512.Each of the connecting shafts 512 is threadedly connected to the corresponding connecting hole 12.

[0028] The bearing to be cleaned in the above technology is marked as 6 in the accompanying drawings of the specification.

[0029] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A railway train axle box bearing rapid grease changing device, comprising a device platform, a bearing seat and a mandrel arranged on the device platform, characterized in that: The bearing seat is penetrated by a driving hole for the core shaft to pass through, and an installation cavity for installing an external axle box bearing is formed between the inner peripheral wall of the driving hole and the outer peripheral wall of the core shaft. The bearing seat is provided with a grease cleaning oil circuit for injecting external grease cleaning agent into the bearing to be cleaned and cleaning and discharging the old grease in the bearing to be cleaned. The equipment table is provided with a driving member for driving the core shaft to rotate forward or reverse to realize the forward and reverse rotation of the bearing to be cleaned. The bearing seat is provided with a vibrating member for generating vibration and making the old grease in the external bearing to be cleaned and the grease cleaning agent in the grease cleaning oil circuit quickly blend and fully blend. The grease cleaning oil circuit includes an inlet nozzle for injecting external grease cleaning agent into the installation cavity and an outlet nozzle for connecting with an external grease suction pump and discharging the cleaned grease liquid in the installation cavity. The inlet nozzle and the outlet nozzle are both connected to the installation cavity. A rib is circumferentially opened on the outer peripheral wall of the core shaft for abutting against the side wall of the inner ring of the external bearing to be cleaned. The starting end of the core shaft is detachably connected with a baffle for combining with the rib to fix the inner ring of the external bearing to be cleaned. The driving part includes a driving motor for cooperating with the core shaft. Vibration motors are connected on both sides of the bearing seat. The vibration motor is the vibration part.

2. The rapid grease replacement equipment for axle box bearings of a railway train according to claim 1 is characterized by: A coupling is wound between the output end of the driving motor and the end of the core shaft.

3. The rapid grease replacement equipment for axle box bearings of a railway train according to claim 1 is characterized by: A vibration damping seat is arranged on the equipment platform, and the vibration damping seat is composed of an upper vibration damping plate and a lower vibration damping plate stacked together. The upper vibration damping plate is connected to the bottom of the driving motor, and the lower vibration damping plate is connected to the equipment platform. A vibration damping rubber is connected between the upper vibration damping plate and the lower vibration damping plate.

4. The rapid grease replacement equipment for railway train axle box bearings according to claim 1 is characterized by: One of the vibration motors is arranged parallel to the core shaft, and the other vibration motor is arranged perpendicular to the core shaft.

5. The rapid grease replacement equipment for railway train axle box bearings according to claim 1 is characterized by: The vibration motor is a high-frequency vibration motor.

6. The rapid grease replacement equipment for axle box bearings of a railway train according to claim 1 is characterized by: A vibration-damping structure is arranged at the bottom of the bearing seat, and the vibration-damping structure is composed of a plurality of vibration dampers. Each vibration damper is composed of an adjustment seat, a vibration-damping spring and a guide column. The adjustment seat is arranged on the equipment table, the end of the vibration-damping spring is connected to the end face of the adjustment seat, the starting end of the vibration-damping spring is connected to the end of the guide column, and the guide column is connected to the bearing seat.

7. The rapid grease replacement equipment for axle box bearings of a railway train according to claim 6 is characterized by: A socket is provided at the bottom of the bearing seat corresponding to each guide column position, and a plug column for plugging and cooperating with the corresponding socket is provided at the top of each guide column. A groove for accommodating the end of the damping spring is provided on the end face of the adjustment seat, and the inner wall of the groove is connected with the outer wall of the end of the damping spring. A connecting shaft is provided at the bottom of the adjustment seat, and a connecting hole is provided at each connecting shaft position on the equipment platform, and each connecting shaft is threadedly connected to the corresponding connecting hole.

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