CN209762016U

CN209762016U - Inner ring oil supply bearing device

Info

Publication number: CN209762016U
Application number: CN201920558234.6U
Authority: CN
Inventors: 李德荣
Original assignee: NINGBO NBVO SEIKO BEARING Co Ltd
Current assignee: NINGBO NBVO SEIKO BEARING Co Ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2019-12-10
Anticipated expiration: 2029-04-23

Abstract

The inner ring oil supply bearing device is characterized in that a shaft penetrates through the inner ring, an oil cavity and four injectors are arranged in the shaft, four through holes are formed in the inner ring, the injectors are inserted into the through holes, first valves are arranged at four corners of the oil cavity respectively, the injectors are arranged on one sides of the first valves, each injector comprises an injection cavity, a hole is formed in one side of each injection cavity and connected with the corresponding first valve, a push plate connecting rod is arranged in each injection cavity, a driving plate is arranged at the bottom of each push plate connecting rod and controlled up and down through a bidirectional screw rod, a second valve is arranged at the end of each injection cavity, when the push plate connecting rod rises upwards, the first valves are closed, the second valves are opened, and when the push plate connecting rod descends. The utility model discloses following beneficial effect has: the inner ring of the bearing is fixed, when the outer ring rotates, the injector in the inner ring injects lubricating oil to the position of the steel ball at intervals, and after the injection is finished, the injector automatically supplies oil.

Description

Inner ring oil supply bearing device

Technical Field

The utility model belongs to the bearing field, concretely relates to inner circle oil supply bearing device.

Background

The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision.

The bearing can produce a large amount of heats because of the friction in the operation process, along with the work of bearing, lubricating grease constantly consumes, lubricating grease escapes from the gap of bearing end face and inner circle outer lane, along with the reduction of lubricating oil, the frictional resistance of inside steel ball can increase, relative bearing noise also can increase, originally the bearing that lubricated effect is good is after long-time the use, can cause the lubricated state of oweing, it is very harmful to the life of bearing to owe the lubrication, also cause the leading cause of bearing damage.

And present bearing in the use, if need supply the lubricating grease, need dismantle the bearing from the device earlier, then open two bearing terminal surfaces, mend oil and finish the back, still must the terminal surface and adorn back, then put the bearing in place, the very complicacy of whole process procedure, the bearing of dismantling moreover must lead to the device production to stop, influences work efficiency.

Disclosure of Invention

Not enough to prior art, the utility model provides an inner circle fuel feeding bearing device solves current bearing and uses lubricating oil for a long time and reduce, causes the problem of bearing damage.

The utility model discloses a following technical scheme realizes.

The inner ring oil supply bearing device comprises an outer ring and an inner ring, wherein steel balls are arranged in the outer ring and the inner ring, a nylon retainer is arranged on the steel balls, and sealing end faces are arranged at two ends of the outer ring and the inner ring respectively, and is characterized in that a shaft is arranged in the inner ring in a penetrating manner, an oil cavity and four injectors are arranged in the shaft, four through holes are formed in the inner ring, the injectors are inserted into the through holes, first valves are respectively arranged at four corners of the oil cavity, one side of each first valve is provided with the injector, the injector comprises an injection cavity, one side of the injection cavity is provided with a hole, the hole is connected with the first valve, a push plate connecting rod is arranged in the injection cavity, a drive plate is arranged at the bottom of the push plate connecting rod, the drive plate is controlled to move up and down through a bidirectional screw rod, and a, when the push plate connecting rod ascends, the first valve is closed, the second valve is opened, and when the push plate connecting rod descends, the first valve is opened, and the second valve is closed. The inner ring is provided with the through hole, the fixed injection device is arranged, lubricating grease can be injected at regular time, the service life of the bearing is greatly prolonged, and the position of the through hole does not interfere with the steel ball.

Preferably, the four injectors are divided into two upper rows and two lower rows, the two upper rows and the two lower rows are symmetrically arranged along the axis of the shaft, and one end of the bidirectional screw is provided with the micro motor. Two pairs of micro motors are arranged oppositely, the micro motors can be built-in batteries, and wires can be pulled out independently to be connected with a power supply.

Preferably, one end of the driving plate is further provided with a limiting plate, the limiting plate is arranged on one side of the injector, one end of the limiting plate is welded with the inner ring, and a part of the driving plate is inserted into the limiting plate to form limiting. Under the effect of limiting plate, the drive plate just can reciprocate on two-way screw rod.

Preferably, the oil cavity is further connected with an oil supplementing pipe, a liquid level sensor is arranged in the oil cavity, and the other end of the oil supplementing pipe is connected with the oil pump. The volume of the oil in the oil cavity can be monitored in real time, and the situation that the oil cannot enter the injection cavity due to too little oil is prevented.

Compared with the prior art: the inner ring of the bearing is fixed, when the outer ring rotates, the injector in the inner ring injects lubricating oil to the position of the steel ball at intervals, and after the injection is finished, the injector automatically supplies oil.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the embodiments.

An inner ring oil supply bearing device comprises an outer ring 1 and an inner ring 3, wherein steel balls 2 are arranged in the outer ring 1 and the inner ring 3, a nylon retainer 5 is arranged on each steel ball 2, sealing end faces 4 are arranged at two ends of the outer ring 1 and the inner ring 3, a shaft 14 penetrates through the inner ring 3, an oil cavity 12 and four injectors are arranged in the shaft 14, four through holes are formed in the inner ring 3, the injectors are inserted into the through holes, first valves 9 are respectively arranged at four corners of the oil cavity 12, the injectors are arranged on one side of each first valve 9 and comprise injection cavities 7, holes are formed in one sides of the injection cavities 7 and connected with the first valves 9, a push plate connecting rod 8 is arranged in each injection cavity 7, a drive plate 10 is arranged at the bottom of the push plate connecting rod 8, and the drive plate 10 is controlled to move up and down through a bidirectional screw 6, the tip of injection cavity 7 be provided with second valve 15, when the push pedal connecting rod 8 is to ascending, first valve 9 is closed, the second valve is opened, when push pedal connecting rod 8 is to descending, first valve 9 is opened, the second valve is closed, four injectors divide into two and lower two rows of two and arrange two down, and two rows about and along the axis symmetry setting of axle 14, the one end of two-way screw rod 6 set up micro motor, the one end of drive plate 10 still set up limiting plate 11, limiting plate 11 set up the one side at the injector, and one end and inner circle 3 welding, the drive plate 10 partly insert and form spacingly in limiting plate 11, oil pocket 12 still connect oil supply pipe 13, oil pocket 12 in be provided with level sensor, oil supply pipe 13's the other end connect the oil pump.

In the use process, the other end of the oil supplementing pipe 13 is connected with an oil pump, once the liquid level sensor finds that the lubricating oil in the oil cavity 12 cannot reach the specified liquid level, the oil pump is started to automatically supply oil to the oil cavity 12, and the oil in the oil cavity 12 reaches the specified liquid level.

After the bearing used a period, be a month's time in this application, at first micro motor drives two-way screw 6 clockwise rotation, and micro motor's model is 35BYJ412P, and 6 clockwise rotation backs of two-way screw are provided with the nut on the drive plate 10, this nut and two-way screw cooperation, and the one end of drive plate 10 still sets up limiting plate 11, limiting plate 11 set up the one side at the syringe, and one end and inner circle 3 welding, drive plate 10 partly insert and form spacingly in limiting plate 11, therefore two-way screw's rotary motion has become the process of the downward movement of drive plate 10.

In the process that the driving plate 10 moves downwards, the first valve 9 and the second valve 15 are controlled by a PLC control unit module, the PLC control unit module is arranged in a microcomputer and wirelessly controls the first valve 9 and the second valve 15, the second valve 15 is closed, the first valve 9 is opened, at the moment, in the descending process of the push plate connecting rod 8, the position of the first valve 9 is gradually close to and finally descends continuously, after the position of the first valve 9 is descended to be lower than the position of the first valve 9, under the condition that the atmospheric pressure in the injector becomes small, lubricating oil can flow into a hole, and enters the injection cavity 7 and is located above the push plate connecting rod 8.

After lubricating oil is filled into the injection cavity 7, the micro motor drives the bidirectional screw 6 to rotate anticlockwise, the driving plate 10 rises upwards under the action of the limiting plate, the PLC control unit module controls the second valve 15 to be opened, the first valve 9 is closed, the principle of the injector is that the lubricating oil on the push plate connecting rod 8 is pushed to the opening position of the second valve 15 completely by extrusion, and the oil is filled into the space in the bearing.

The specific oil filling amount is determined by the rising height of the push plate connecting rod 8, generally, the push plate connecting rod 8 rises to five to four parts of the injection cavity 7, and 25% of lubricating oil can be supplemented.

The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.

Claims

1. An inner ring oil supply bearing device comprises an outer ring (1) and an inner ring (3), wherein steel balls (2) are arranged in the outer ring (1) and the inner ring (3), a nylon retainer (5) is arranged on the steel balls (2), and sealing end faces (4) are arranged at two ends of the outer ring (1) and the inner ring (3), the inner ring oil supply bearing device is characterized in that a shaft (14) is arranged in the inner ring (3) in a penetrating manner, an oil cavity (12) and four injectors are arranged in the shaft (14), four through holes are formed in the inner ring (3), the injectors are inserted into the through holes, first valves (9) are respectively arranged at four corners of the oil cavity (12), the injectors are arranged at one side of each first valve (9) and comprise injection cavities (7), holes are formed in one side of each injection cavity (7), and are connected with the first valves (9), the injection cavity is characterized in that a push plate connecting rod (8) is arranged in the injection cavity (7), a driving plate (10) is arranged at the bottom of the push plate connecting rod (8), the driving plate (10) is controlled to move up and down through a bidirectional screw (6), a second valve (15) is arranged at the end of the injection cavity (7), when the push plate connecting rod (8) moves upwards, the first valve (9) is closed, the second valve is opened, and when the push plate connecting rod (8) moves downwards, the first valve (9) is opened and the second valve is closed.

2. An inner race oil-feeding bearing device according to claim 1, characterized in that said four injectors are divided into two rows of two, an upper row and a lower row, and the two rows are symmetrically arranged along the axis of the shaft (14), and a micro motor is arranged at one end of said bidirectional screw (6).

3. An inner ring oil supply bearing device according to claim 1, wherein a limit plate (11) is further arranged at one end of the drive plate (10), the limit plate (11) is arranged at one side of the injector, one end of the limit plate is welded with the inner ring (3), and a part of the drive plate (10) is inserted into the limit plate (11) to form a limit position.

4. An inner ring oil supply bearing device according to claim 3, characterized in that the oil chamber (12) is further connected with an oil supply pipe (13), a liquid level sensor is arranged in the oil chamber (12), and the other end of the oil supply pipe (13) is connected with an oil pump.