CN114738379A

CN114738379A - High-precision bearing and bearing self-oiling method

Info

Publication number: CN114738379A
Application number: CN202210370375.1A
Authority: CN
Inventors: 张国庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-09
Filing date: 2022-04-09
Publication date: 2022-07-12

Abstract

The invention belongs to the technical field of bearings, and particularly relates to a high-precision bearing and a bearing self-oiling method, which comprise an outer ring; the inner ring is movably connected inside the outer ring; the retainer is movably connected between one opposite sides of the outer ring and the inner ring; the rolling element, through setting up sealing mechanism, cooperation through sealed lid and sealing member is used, can seal the processing between outer loop and the inner ring, can prevent between external environment's hard thing granule entering outer loop and the inner ring, the condition that causes abnormal wear to the rolling element takes place, make its precision can not receive the influence, simultaneously through first elasticity fastener and second elasticity fastener respectively with outer loop and inner ring contact down, can fix sealed lid between outer loop and inner ring, can prevent that sealed lid and sealing member break away from sealed position in the use, the condition that makes sealed lid and sealing member lose sealed effect appears.

Description

High-precision bearing and bearing self-oiling method

Technical Field

The invention relates to the technical field of bearings, in particular to a high-precision bearing and a bearing self-oiling method.

Background

The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body.

The bearing is an important part of the rotation combination in the machine, and the main function is to support, guide and limit the movement of the rotation shaft, and meanwhile, the bearing also has the functions of reducing friction loss and increasing transmission efficiency, as in the prior art, the patent number: CN201310062382.6 discloses an oil injection method and an oil injection tool for a closed bearing. The invention relates to an oiling tool for sealing a bearing, which comprises an oiling end cover, an oiling end cover and a compression nut. The invention discloses an oiling method of a closed bearing by using the oiling tool, which comprises the following steps: 1.1) connecting a bearing with the oil injection tool, and screwing a compression nut; 1.2) connecting the oil gun with the oil hole; 1.3) pressurizing and injecting oil by an oil injection gun, wherein new grease enters the bearing through an oil injection hole of an oil injection end cover; 1.4) oil injection of the oil gun can be stopped when the old oil paste is extruded from an oil outlet of the oil outlet end cover; 1.5) rotating the bearing after the oil injection is finished, so that the ointment is uniformly distributed in the bearing. The invention utilizes a special tool to inject oil into the closed bearing, solves the problem that the oil cannot be injected in the past, prolongs the service life and the reliability of the bearing, further improves the safety, the reliability and the maintainability of the airplane and reduces the maintenance cost of the airplane.

The inside lubricating oil of bearing is lost because of factors such as friction, temperature in the use of current bearing to can make the friction increase between the bearing internals, reduce the precision of bearing, consequently need dismantle the bearing and carry out the replenishment of lubricating oil, make the maintenance duration extension of bearing, make work efficiency reduce, and hard thing granule among the external environment gets into the inside of bearing easily, accelerated the wearing and tearing of bearing internals, make the life of bearing reduce.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and some simplifications or omissions may be made in this section as well as in the abstract and title of the application to avoid obscuring the purpose of this section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the problems occurring in the conventional bearings.

To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions: a high precision bearing includes an outer ring;

the inner ring is movably connected inside the outer ring;

the retainer is movably connected between one opposite sides of the outer ring and the inner ring;

the rolling body is movably connected inside the retainer, and one side of the rolling body, which is close to the inner walls of the outer ring and the inner ring, is respectively in movable contact with the outer ring and the inner ring;

the sealing mechanisms are movably connected to the top and the bottom of the retainer, the surfaces of the sealing mechanisms are respectively in close contact with the inner walls of the outer ring and the inner ring, and the sealing mechanisms are used for sealing the outer ring and the inner ring;

and one side of the lubricating mechanism, which is close to the sealing mechanism, is movably connected with the sealing mechanism, one side of the lubricating mechanism, which is close to the sealing mechanism, penetrates through the inside of the sealing mechanism and extends to the inside of the retainer, and the lubricating mechanism is used for lubricating the rolling body.

As a preferable aspect of the high-precision bearing according to the present invention, wherein: sealing mechanism includes sealed lid, sealing member, first snap ring, second snap ring, connecting block and through-hole, sealed lid is close to the outer loop with one side of inner ring inner wall respectively with the outer loop with inner ring in close contact with, the sealing member is close to one side of sealed lid with sealed lid fixed connection, first snap ring is close to one side of outer ring inner wall with outer loop in close contact with, second snap ring is close to one side of inner ring inner wall with the inner wall in close contact with of inner ring, sealed lid with lubricating mechanism fixed connection, the connecting block is close to first snap ring with one side of second snap ring respectively with first snap ring with second snap ring fixed connection, the through-hole is seted up the inside of connecting block.

As a preferable aspect of the high-precision bearing according to the present invention, wherein: the lubricating mechanism comprises an oil storage ring, a screw, a spring, a piston ring and an oil pipe, one side of the oil storage ring close to the sealing cover is movably connected with the sealing cover, the screw is movably connected in the oil storage ring, one side of the screw close to the sealing cover penetrates through the sealing cover and extends to the retainer, the piston ring is movably connected in the oil storage ring and is movably connected on the surface of the screw, the spring is sleeved on the surface of the screw, one side of the spring close to the inner wall of the oil storage ring is fixedly connected with the oil storage ring, one side of the spring close to the piston ring is fixedly connected with the piston ring, one side of the oil pipe close to the oil storage ring is fixedly communicated with the oil storage ring, one side of the oil pipe close to the sealing cover penetrates through the inside of the sealing cover and extends to the inside of the retainer.

As a preferable aspect of the high-precision bearing according to the present invention, wherein: the sealing member is close to the outer loop with one side of inner ring inner wall respectively with the outer loop with inner ring in close contact with, the outer loop with the top and the bottom of the relative one side of inner ring all seted up with the seal groove that the sealing member cooperation was used, the outer loop with the top and the bottom of the relative one side of inner ring have seted up respectively with first snap ring with the draw-in groove that the cooperation of second snap ring was used.

As a preferable aspect of the high-precision bearing according to the present invention, wherein: the number of the screws is four, the screws are movably connected inside the oil storage ring in an annular mode, the surfaces of the screws are in close contact with oil seals, the surfaces of the oil seals are fixedly connected with the inner wall of the oil storage ring, the surfaces of the screws are in threaded connection with the inner wall of the retainer, a thread groove matched with the screws is formed in one side, close to the screws, of the retainer, and a fixing hole matched with the screws is formed in one side, away from the sealing cover, of the oil storage ring.

As a preferable aspect of the high-precision bearing according to the present invention, wherein: the oil hole has been seted up to the inside of holder, the oil hole with oil pipe intercommunication, the holder is close to one side of rolling element inner wall has seted up the oil groove, the oil groove with the oil hole intercommunication.

As a preferable aspect of the high-precision bearing according to the present invention, wherein: the oil storage ring is kept away from one side fixedly connected with oiling mouth of sealed lid, the inside in close contact with of oiling mouth has the rubber buffer, the fixed intercommunication in inside of oiling mouth has communicating pipe, communicating pipe is close to one side of oil storage ring with the fixed intercommunication of oil storage ring.

The invention also provides a high-precision bearing self-oiling method, which comprises the following steps;

s1, after an outer ring, an inner ring, a retainer and a rolling body are installed together, sealing covers are installed at the bottom and the top of the retainer, the sealing covers are installed between the outer ring and the inner ring, sealing elements enter the inner portions of the outer ring and the inner ring and are in tight contact with the inner walls of the outer ring and the inner ring, then a tool is used for enabling two connecting blocks to move towards opposite directions through holes, a first elastic clamping ring is contracted, then the first elastic clamping ring is installed at the top of the sealing cover and is in contact with the inner wall of the outer ring, the first elastic clamping ring resets by relieving stress on the connecting blocks, the first elastic clamping ring is in tight contact with the inner wall of the outer ring and then moves relatively through the connecting blocks on a second elastic clamping ring, the installation process of the first elastic clamping ring is repeated, the second elastic clamping ring is in tight contact with the inner wall of the inner ring, and the sealing covers are fastened between the outer ring and the inner ring;

s2, after the sealing cover is installed, a screw penetrates through the inside of the sealing cover and enters the inside of the retainer, the oil storage ring is fixed on the sealing cover, lubricating oil is added into the oil storage ring, the lubricating oil enters the inside of the retainer through an oil pipe, after the retainer is filled with the lubricating oil, the lubricating oil can push the piston ring to move upwards on the surface of the screw and extrude the spring to enable the spring to contract through continuous injection, the injection is stopped after the oil storage ring is filled with the lubricating oil, after the lubricating oil in the retainer is completely worn out, the spring pushes the piston ring to move on the surface of the screw through the elastic action of the spring, the lubricating oil in the oil storage ring is squeezed into the retainer through the oil pipe, and the lubricating oil in the retainer is automatically replenished at proper time.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up sealing mechanism, cooperation through sealed lid and sealing member is used, can be to sealed the processing between outer loop and the inner ring, can prevent that hard thing granule among the external environment from getting into between outer loop and the inner ring, the condition that causes abnormal wear to the rolling element takes place, make its precision can not receive the influence, simultaneously through first elasticity fastener and second elasticity fastener respectively with outer loop and inner ring contact down, can fix sealed lid between outer loop and inner ring, can prevent that sealed lid and sealing member break away from sealed position in the use, the condition that makes sealed lid and sealing member lose sealed effect appears.

2. Through setting up lubricating mechanism, after the inside lubricating oil of retainer is lost, through the spring action of spring, make the spring promote the piston ring and remove on the surface of screw, with the intraductal lubricating oil of oil storage extrude inside the retainer through oil pipe, make the inside lubricating oil of retainer obtain in good time automatic replenishment, can avoid the friction increase between rolling element and outer loop and the inner ring to can reduce the maintenance duration of bearing, improve work efficiency.

3. Through setting up oilhole and oil groove, the circulation of lubricating oil of can being convenient for, during lubricating oil from oil pipe outflow can get into the oilhole, again by the oilhole inflow oil groove, make lubricating oil lubricate the rolling element to at the inner ring rotation in-process, the rolling element can lubricate inner ring and outer loop, reduces the friction between rolling element, inner ring and the outer loop.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:

FIG. 1 is a schematic view of the overall structure of a high-precision bearing according to the present invention;

FIG. 2 is a schematic structural diagram of a sealing mechanism in a high-precision bearing according to the present invention;

FIG. 3 is a partial schematic view of a sealing mechanism in a high precision bearing according to the present invention;

FIG. 4 is a schematic structural diagram of an outer ring of a high-precision bearing according to the present invention;

FIG. 5 is an enlarged view of a high precision bearing of the present invention at A in FIG. 4;

FIG. 6 is a cross-sectional view of an outer race of a high precision bearing of the present invention;

FIG. 7 is a plan view of a lubrication mechanism in a high precision bearing of the present invention;

FIG. 8 is an enlarged view of a high precision bearing of the present invention at B of FIG. 7;

FIG. 9 is a schematic structural view of a fuel injection nozzle in a high-precision bearing according to the present invention;

FIG. 10 is a flow chart of a process method in a high precision bearing of the present invention;

FIG. 11 is a front view schematically illustrating the structure of the auxiliary device for mounting a snap ring part inside a high-precision bearing according to the present invention;

FIG. 12 is a schematic top view of the mounting aid for a snap ring part inside a high precision bearing according to the present invention;

FIG. 13 is a schematic sectional front view showing the structure of the auxiliary fitting for mounting a snap ring part inside a high-precision bearing according to the present invention;

FIG. 14 is an enlarged partial schematic view of FIG. 13 at E in accordance with the teachings of the present invention;

FIG. 15 is an enlarged partial schematic view of FIG. 13 at F in accordance with the teachings of the present invention;

reference numbers in the figures: 1. an outer ring; 2. an inner ring; 3. a cage; 4. a rolling body; 5. a sealing mechanism; 501. A sealing cover; 502. a seal member; 503. a first elastic snap ring; 504. a second elastic snap ring; 505. connecting blocks; 506. a through hole; 6. a lubrication mechanism; 601. an oil storage ring; 602. a screw; 603. a spring; 604. A piston ring; 605. an oil pipe; 7. a sealing groove; 8. a card slot; 9. oil sealing; 10. a thread groove; 11. a fixing hole; 12. an oil hole; 13. an oil sump; 14. an oil injection nozzle; 15. a rubber plug; 16. a communicating pipe; 17. disassembling the instrument; 1701. a hinged support; 1702. a swing rod; 1703. a slide hole; 1704. a slide pin; 1705. a threaded lead screw; 1706. a movable nut; 1707. a connecting rod; 1708. a fixed seat; 1709. an ear plate; 18. a horizontal movable rod; 19. a clamping rod; 1901. an anti-skid ball; 1902. a water-filled bag; 1903. a water sac cavity; 1905. A first water inlet hole; 1906. a second water inlet hole; 1907. a water inlet pipe; 1908. a water storage tank; 1909. an electromagnetic valve; 1910. a water pump; 20. a limiting slide block; 21. a servo motor; 22. and a long hole.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Examples

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 10, a high precision bearing includes an outer ring 1;

the inner ring 2 is movably connected inside the outer ring 1;

the retainer 3 is movably connected between the opposite sides of the outer ring 1 and the inner ring 2;

the rolling body 4 is movably connected inside the retainer 3, and one side of the rolling body 4 close to the inner walls of the outer ring 1 and the inner ring 2 is respectively in movable contact with the outer ring 1 and the inner ring 2;

the sealing mechanism 5 is movably connected to the top and the bottom of the retainer 3, the surface of the sealing mechanism 5 is respectively in close contact with the inner walls of the outer ring 1 and the inner ring 2, and the sealing mechanism 5 is used for sealing the outer ring 1 and the inner ring 2;

and the lubricating mechanism 6, one side of the lubricating mechanism 6 close to the sealing mechanism 5 is movably connected with the sealing mechanism 5, one side of the lubricating mechanism 6 close to the sealing mechanism 5 penetrates through the sealing mechanism 5 and extends into the retainer 3, and the lubricating mechanism 6 is used for lubricating the rolling bodies 4.

In this example, the sealing mechanism 5 includes a sealing cover 501, a sealing member 502, a first snap ring 503, a second snap ring 504, a connecting block 505, and a through hole 506, one side of the sealing cover 501 close to the inner walls of the outer ring 1 and the inner ring 2 is respectively in close contact with the outer ring 1 and the inner ring 2, one side of the sealing member 502 close to the sealing cover 501 is fixedly connected with the sealing cover 501, one side of the first snap ring 503 close to the inner wall of the outer ring 1 is in close contact with the outer ring 1, one side of the second snap ring 504 close to the inner wall of the inner ring 2 is in close contact with the inner wall of the inner ring 2, the sealing cover 501 is fixedly connected with the lubricating mechanism 6, one sides of the connecting block 505 close to the first snap ring 503 and the second snap ring 504 are respectively fixedly connected with the first snap ring 503 and the second snap ring 504, the through hole 506 is opened inside the connecting block 505, by installing the sealing cover 501 between the outer ring 1 and the inner ring 2, the sealing member 502 is inserted into the inner portions of the outer ring 1 and the inner ring 2, and then the two connection blocks 505 are moved in opposite directions by using a tool through the through hole 506, the first elastic snap ring 503 is contracted, then, the first snap ring 503 is fitted to the top of the sealing cap 501, and is brought into contact with the inner wall of the outer ring 1, by releasing the stress on the connecting block 505, the first elastic snap ring 503 is reset, so that the first elastic snap ring 503 is in close contact with the inner wall of the outer ring 1, then the installation process of the first elastic snap ring 503 is repeated by relatively moving the connecting block 505 on the second elastic snap ring 504, so that the second elastic snap ring 504 is tightly contacted with the inner wall of the inner ring 2, the sealing cover 501 is fastened between the outer ring 1 and the inner ring 2, hard particles in the external environment can be prevented from entering between the outer ring 1 and the inner ring 2, abnormal abrasion to the rolling body 4 can be prevented, and the precision of the rolling body can not be influenced.

In this example, the lubricating mechanism 6 includes an oil storage ring 601, a screw 602, a spring 603, a piston ring 604 and an oil pipe 605, wherein one side of the oil storage ring 601 close to the sealing cover 501 is movably connected with the sealing cover 501, the screw 602 is movably connected inside the oil storage ring 601, one side of the screw 602 close to the sealing cover 501 penetrates through the inside of the sealing cover 501 and extends to the inside of the retainer 3, the piston ring 604 is movably connected inside the oil storage ring 601, the piston ring 604 is movably connected on the surface of the screw 602, the spring 603 is sleeved on the surface of the screw 602, one side of the spring 603 close to the inner wall of the oil storage ring 601 is fixedly connected with the oil storage ring 601, one side of the oil pipe 605 close to the sealing cover 501 penetrates through the inside of the sealing cover 501 and extends to the inside of the retainer 3, the screw 602 penetrates through the inside of the sealing cover 501 and enters the inside of the retainer 3, the oil storage ring 601 is fixed on the sealing cover 501, then lubricating oil is added into the oil storage ring 601, the lubricating oil enters the interior of the retainer 3 through the oil pipe 605, after the interior of the retainer 3 is filled with the lubricating oil, the lubricating oil can push the piston ring 604 to move upwards on the surface of the screw 602 and extrude the spring 603 to enable the spring 603 to contract, after the interior of the oil storage ring 601 is filled with the lubricating oil, the lubricating oil stops being injected, after the interior of the retainer 3 is consumed, the spring 603 can push the piston ring 604 to move on the surface of the screw 602 through the elastic action of the spring 603, the lubricating oil in the oil storage ring 601 is extruded into the interior of the retainer 3 through the oil pipe 605, the lubricating oil in the retainer 3 is automatically replenished at proper time, the increase of friction between the rolling body 4 and the outer ring 1 and the inner ring 2 can be avoided, the influence on the precision can be prevented, and the working quality can be improved.

In this example, one side of the sealing element 502 close to the inner walls of the outer ring 1 and the inner ring 2 is respectively in close contact with the outer ring 1 and the inner ring 2, the top and the bottom of the opposite side of the outer ring 1 and the inner ring 2 are respectively provided with a sealing groove 7 matched with the sealing element 502 for use, the top and the bottom of the opposite side of the outer ring 1 and the inner ring 2 are respectively provided with a clamping groove 8 matched with the first snap ring 503 and the second snap ring 504 for use, by arranging the sealing groove 7, the sealing element 502 can be conveniently in close contact with the inner walls of the outer ring 1 and the inner ring 2 respectively, the sealing effect can be improved, by arranging the clamping groove 8, the first snap ring 503 and the second snap ring 504 can be conveniently inserted into the inner parts of the outer ring 1 and the inner ring 2, the sealing cover 501 is fixed between the outer ring 1 and the inner ring 2, and the sealing cover 501 is prevented from being separated from the sealing position.

In this example, the number of the screws 602 is four, and the screws 602 are movably connected in the oil storage ring 601 in an annular manner, the surface of the screws 602 is tightly contacted with the oil seal 9, the surface of the oil seal 9 is fixedly connected with the inner wall of the oil storage ring 601, the surface of the screws 602 is in threaded connection with the inner wall of the retainer 3, one side of the retainer 3 close to the screws 602 is provided with a thread groove 10 matched with the screws 602, one side of the oil storage ring 601 far away from the sealing cover 501 is provided with a fixing hole 11 matched with the screws 602, the number of the screws 602 is four and the screws 602 are annularly arranged in the oil storage ring 601, so that the piston ring 604 can stably move in the process of extruding lubricating oil, the screws 602 and the retainer 3 can be conveniently in threaded connection through the thread groove 10, the oil storage ring 601 is fixed at the use position, the joint of the screws 602 and the oil storage ring 601 can be sealed through the oil seal 9, lubricating oil can be prevented from leaking, and the screw 602 can be conveniently fixed to the oil storage ring 601 through the fixing hole 11.

In this example, the holder 3 is provided with an oil hole 12 therein, the oil hole 12 is communicated with the oil pipe 605, one side of the holder 3 close to the inner wall of the rolling element 4 is provided with an oil groove 13, the oil groove 13 is communicated with the oil hole 12, and by providing the oil hole 12 and the oil groove 13, the oil hole 12 is communicated with the oil groove 13, so that the circulation of the lubricating oil can be facilitated, and the lubricating oil can be automatically supplemented.

In this example, one side fixedly connected with oil filling nozzle 14 that oil storage ring 601 kept away from sealed lid 501, the inside in close contact with of oil filling nozzle 14 has rubber buffer 15, the fixed intercommunication in inside of oil filling nozzle 14 has communicating pipe 16, communicating pipe 16 is close to one side of oil storage ring 601 and the fixed intercommunication of oil storage ring 601, through setting up oil filling nozzle 14 and oil pipe 605, after the lubricating oil loss in oil storage ring 601, can pour into to its inside again, can make the inside lubricating oil of oil storage ring 601 fill, through setting up rubber buffer 15, can prevent that lubricating oil from taking place to reveal, and prevent that the foreign matter from causing the condition emergence of pollution to lubricating oil, can keep the cleanness of lubricating oil.

In the embodiment, a process method of the high-precision bearing is also disclosed, which comprises the following steps;

s1, after an outer ring 1, an inner ring 2, a retainer 3 and a rolling body 4 are installed together, a sealing cover 501 is installed at the bottom and the top of the retainer 3, the sealing cover 501 is installed between the outer ring 1 and the inner ring 2, a sealing element 502 is enabled to enter the inner parts of the outer ring 1 and the inner ring 2 and to be in close contact with the inner walls of the outer ring 1 and the inner ring 2, then a tool is used to enable two connecting blocks 505 to move towards opposite directions through a through hole 506, so that a first elastic snap ring 503 is contracted, then the first elastic snap ring 503 is installed at the top of the sealing cover 501 and is in contact with the inner wall of the outer ring 1, the first elastic snap ring 503 is reset by relieving the stress on the connecting blocks 505, so that the first elastic snap ring 503 is in close contact with the inner wall of the outer ring 1, then the connecting blocks 505 on a second elastic snap ring 504 are relatively moved, the installation process of the first elastic snap ring 503 is repeated, so that the second elastic snap ring 504 is in close contact with the inner wall of the inner ring 2, securing the seal cap 501 between the outer ring 1 and the inner ring 2;

s2, after the sealing cover 501 is installed, the screw 602 penetrates through the sealing cover 501 and enters the retainer 3, the oil storage ring 601 is fixed on the sealing cover 501, then lubricating oil is added into the oil storage ring 601, the lubricating oil enters the retainer 3 through the oil pipe 605, after the retainer 3 is filled with the lubricating oil, the lubricating oil is continuously injected to push the piston ring 604 to move upwards on the surface of the screw 602 and press the spring 603 to contract, the oil storage ring 601 is filled and stops injecting, after the lubricating oil in the retainer 3 is completely worn, the spring 603 pushes the piston ring 604 to move on the surface of the screw 602, the lubricating oil in the oil storage ring 601 is pushed into the retainer 3 through the oil pipe 605, and the lubricating oil in the retainer 3 is automatically replenished at proper time.

The invention is a high precision bearing and a bearing self-oiling method, firstly, an outer ring 1, an inner ring 2, a retainer 3 and a rolling body 4 are installed together, then a sealing cover 501 is installed between the outer ring 1 and the inner ring 2, a sealing element 502 enters the inner parts of the outer ring 1 and the inner ring 2, the sealing element 502 enters a sealing groove 7, then a tool is used to move two connecting blocks 505 in opposite directions through a through hole 506, so that a first elastic snap ring 503 is contracted, then the first elastic snap ring 503 is installed on the top of the sealing cover 501 and enters a clamping groove 8 in the outer ring 1, the first elastic snap ring 503 is reset by relieving the stress on the connecting blocks 505, so that the first elastic snap ring 503 is in close contact with the inner wall of the outer ring 1, then the connecting blocks 505 on the second elastic snap ring 504 move relatively, the installation process of the first elastic snap ring 503 is repeated, the second elastic snap ring 504 is closely contacted with the inner wall of the inner ring 2, the sealing cover 501 is fastened between the outer ring 1 and the inner ring 2, then the screw 602 penetrates through the sealing cover 501 and enters the thread groove 10 in the retainer 3, the oil storage ring 601 is fixed on the sealing cover 501, then lubricating oil is added into the oil storage ring 601 through the oil filling nozzle 14 and the communicating pipe 16, the lubricating oil enters the retainer 3 through the oil pipe 605, the oil hole 12 and the oil groove 13, after the retainer 3 is filled with the lubricating oil, the lubricating oil is continuously injected to push the piston ring 604 to move upwards on the surface of the screw 602 and press the spring 603 to contract the spring 603, the injection is stopped after the oil storage ring 601 is filled, after the lubricating oil in the retainer 3 is completely worn, the spring 603 pushes the piston ring 604 to move on the surface of the screw 602 through the elastic force of the spring 603, and the lubricating oil in the oil storage ring 601 passes through the oil pipe 605, The oil hole 12 and the oil groove 13 are squeezed into the retainer 3 to automatically supplement the rolling elements 4 at proper time.

Example 2

Referring to fig. 10-15, the embodiment has the same points as embodiment 1, and the same points are not described again in this embodiment, but the specific differences are as follows:

the description of example 1 above: "the two connecting blocks 505 are moved in opposite directions by using a tool through the through hole 506 to contract the first snap ring 503", wherein the tool refers to the disassembling apparatus 17, the disassembling apparatus 17 is configured as a triangular block structure, two horizontal movable rods 18 which slide back and forth are arranged in the middle of the top end of the disassembling apparatus 17, the top end of each horizontal movable rod 18 is provided with a clamping rod 19 which stands upright on the top end of the horizontal movable rod 18, and each clamping rod 19 is configured as a round rod.

According to the invention, two clamping rods 19 on the disassembling instrument 17 extend into the through holes of the connecting blocks at the end parts of the clamping rings, and two horizontal movable rods on the disassembling instrument 17 slide towards the middle on the disassembling instrument 17, so that the end parts of the clamping rings lean against the middle of the clamping rings, and the clamping rings are convenient to install and fasten, wherein the horizontal movable rods slide towards the middle on the disassembling instrument 17 through the servo motor 21 to drive the threaded screw rods to rotate, and the threaded screw rods rotate to drive the movable nuts to move up and down, so that the swinging of the swinging rods is realized, the horizontal movable rods slide to any position on the disassembling instrument 17 and can be self-locked, the clamping force on the clamping rings is favorably improved, and the two horizontal movable rods still keep higher safety and stability when the clamping rings are clamped at any position on the disassembling instrument 17.

A fixed seat 1708 is fixedly arranged in the middle of the inner wall of the dismounting instrument 17, a servo motor 21 is fixedly arranged on the bottom surface of the dismounting instrument 17, a threaded screw rod 1705 extends upwards from the servo motor 21, the top end of the threaded screw rod 1705 is rotatably connected with the bottom surface of the fixed seat 1708, and a movable nut 1706 is connected to the outer wall of the threaded screw rod 1705 through threads;

hinged supports 1701 are symmetrically arranged on the bottom surface of the inner wall of the dismounting instrument 17, a swing rod 1702 is hinged to the top end of each hinged support 1701, a connecting rod 1707 is hinged to the middle of each swing rod 1702, and the other end of each connecting rod 1707 is hinged to a movable nut 1706;

the top surface of the detaching instrument 17 is provided with a long hole 22, two horizontal movable rods 18 which slide back and forth are connected in the long hole 22 in a sliding manner, the middle part of each horizontal movable rod 18 which is connected in the long hole 22 in a sliding manner is respectively provided with two convex limiting sliders 20, the two limiting sliders 20 in the middle part of each horizontal movable rod 18 are respectively arranged on the upper side of the long hole 22 and the lower side of the long hole 22, the bottom end of each horizontal movable rod 18 which is connected in the long hole 22 in a sliding manner is provided with an ear plate 1709, the middle part of each ear plate 1709 is provided with a sliding pin 1704, the top end of each swing rod 1702 is provided with a sliding hole 1703, and the sliding hole 1703 at the top end of the swing rod 1702 is connected on the sliding pin 1704 in the middle part of the ear plate 1709 in a sliding manner.

A water bag 1902 is wrapped on the outer wall of the clamping rod 19, a water bag cavity 1903 is formed by the inner wall of the water bag 1902 and the outer wall of the clamping rod 19, a second water inlet 1906 is formed in the middle of the clamping rod 19, a first water inlet 1905 communicated with the second water inlet 1906 is formed in the outer wall of the clamping rod 19, and the first water inlet 1905 is communicated with the water bag cavity 1903;

a water storage tank 1908 is fixedly mounted at the top end of the fixing seat 1708, a water suction pump 1910 is arranged inside the water storage tank 1908, an electromagnetic valve 1909 is connected to the top end of the water suction pump 1910, two water inlet pipes 1907 are connected to the electromagnetic valve 1909, and the other end of each water inlet pipe 1907 is connected to a corresponding second water inlet hole 1906.

According to the invention, the clamping rods 19 are arranged at the top ends of the horizontal movable rods, the water bag bags 1902 are arranged on the outer walls of the clamping rods 19, when water is not filled in the water bag cavities 1903, the clamping rods 19 can conveniently extend into the through holes of the connecting blocks at the top ends of the snap rings, the use convenience is improved, the water bag bags 1902 on the outer walls of the clamping rods 19 enable the clamping rods 19 to extend into the through holes of the connecting blocks to play a role in skid resistance, when the water bag cavities 1903 are not filled with water and the water bag bags 1902 are not expanded, the friction force on the surfaces of the water bag bags 1902 can enable the clamping rods 19 to extend into the through holes of the connecting blocks at the top ends of the snap rings to be clamped more firmly, the clamping rods 19 are not easy to loosen in the process of clamping the snap rings, and the snap rings are not easy to bounce from the two clamping rods 19, so that the snap rings are more labor-saving in the process of installing the snap rings;

the outer wall of the water bag 1902 is provided with a plurality of anti-skidding balls 1901 with a semicircle ball structure at equal intervals, and each anti-skidding ball 1901 is a semicircle ball structure.

according to the invention, the water bag 1902 is expanded by filling water into the water bag cavity 1903, so that the clamping rod 19 extends into the through hole of the connecting block at the top end of the snap ring and can be directly fit and attached according to the inner diameter of the through hole, and the clamping firmness of the clamping rod 19 in the through hole is improved.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A high-precision bearing is characterized in that; comprising an outer ring (1);

the inner ring (2) is movably connected inside the outer ring (1);

the retainer (3) is movably connected between one opposite sides of the outer ring (1) and the inner ring (2);

the rolling body (4) is movably connected inside the retainer (3), and one side, close to the inner walls of the outer ring (1) and the inner ring (2), of the rolling body (4) is respectively in movable contact with the outer ring (1) and the inner ring (2);

the sealing mechanism (5) is movably connected to the top and the bottom of the retainer (3);

the lubricating mechanism (6), one side of the lubricating mechanism (6) close to the sealing mechanism (5) is movably connected with the sealing mechanism (5), one side of the lubricating mechanism (6) close to the sealing mechanism (5) penetrates through the inside of the sealing mechanism (5) and extends to the inside of the retainer (3), and the lubricating mechanism (6) is used for lubricating the rolling body (4);

the lubricating mechanism (6) comprises an oil storage ring (601), a screw (602), a spring (603), a piston ring (604) and an oil pipe (605), one side of the oil storage ring (601) close to the sealing cover (501) is movably connected with the sealing cover (501), the screw (602) is movably connected in the oil storage ring (601), one side of the screw (602) close to the sealing cover (501) penetrates through the inside of the sealing cover (501) and extends to the inside of the retainer (3), the piston ring (604) is movably connected in the oil storage ring (601), the piston ring (604) is movably connected on the surface of the screw (602), the spring (603) is sleeved on the surface of the screw (602), one side of the spring (603) close to the inner wall of the oil storage ring (601) is fixedly connected with the oil storage ring (601), one side of the spring (603) close to the piston ring (604) is fixedly connected with the piston ring (604), one side of the oil pipe (605) close to the oil storage ring (601) is fixedly communicated with the oil storage ring (601), and one side of the oil pipe (605) close to the sealing cover (501) penetrates through the inside of the sealing cover (501) and extends to the inside of the retainer (3).

2. A high-precision bearing according to claim 1, wherein: sealing mechanism (5) is including sealed lid (501), sealing member (502), first snap ring (503), second snap ring (504), connecting block (505) and through-hole (506), sealed lid (501) are close to outer loop (1) with one side of inner ring (2) inner wall respectively with outer loop (1) with inner ring (2) in close contact with, sealing member (502) are close to one side of sealed lid (501) with sealed lid (501) fixed connection, first snap ring (503) are close to one side of outer loop (1) inner wall with outer loop (1) in close contact with, second snap ring (504) are close to one side of inner ring (2) inner wall with the inner wall in close contact with of inner ring (2), sealed lid (501) with lubricating mechanism (6) fixed connection, connecting block (505) are close to first snap ring (503) and one side of second snap ring (504) respectively with the first snap ring (503) and one side of second snap ring (504) with The first elastic clamping ring (503) is fixedly connected with the second elastic clamping ring (504), and the through hole (506) is formed in the connecting block (505).

3. A high-precision bearing according to claim 2, wherein: sealing member (502) are close to outer ring (1) with one side of inner ring (2) inner wall respectively with outer ring (1) with inner ring (2) in close contact with, outer ring (1) with top and bottom of the relative one side of inner ring (2) all seted up with seal groove (7) that sealing member (502) cooperation was used, outer ring (1) with draw-in groove (8) have been seted up respectively with first snap ring (503) and second snap ring (504) cooperation use to the top and bottom of the relative one side of inner ring (2).

4. A high-precision bearing according to claim 1, wherein: the number of the screws (602) is four, the screws are movably connected in the oil storage ring (601) in an annular mode, the surface of each screw (602) is tightly contacted with an oil seal (9), the surface of each oil seal (9) is fixedly connected with the inner wall of the oil storage ring (601), the surface of each screw (602) is in threaded connection with the inner wall of the retainer (3), a thread groove (10) matched with the screw (602) is formed in one side, close to the screw (602), of the retainer (3), and a fixing hole (11) matched with the screw (602) is formed in one side, far away from the sealing cover (501), of the oil storage ring (601).

5. A high-precision bearing according to claim 4, wherein: an oil hole (12) is formed in the retainer (3), the oil hole (12) is communicated with the oil pipe (605), an oil groove (13) is formed in one side, close to the inner wall of the rolling body (4), of the retainer (3), and the oil groove (13) is communicated with the oil hole (12).

6. A high-precision bearing according to claim 1, wherein: oil storage ring (601) are kept away from one side fixedly connected with pump nozzle (14) of sealed lid (501), the inside in close contact with of pump nozzle (14) has rubber buffer (15), the inside fixed intercommunication of pump nozzle (14) has communicating pipe (16), communicating pipe (16) are close to one side of oil storage ring (601) with oil storage ring (601) fixed intercommunication.

7. The invention also provides a high-precision bearing self-oiling method according to any one of claims 1 to 6, which is characterized in that: comprises the following steps;

s1, after an outer ring (1), an inner ring (2), a retainer (3) and rolling bodies (4) are installed together, a sealing cover (501) is installed at the bottom and the top of the retainer (3), the sealing cover (501) is installed between the outer ring (1) and the inner ring (2), a sealing element (502) enters the inner parts of the outer ring (1) and the inner ring (2) and is in tight contact with the inner walls of the outer ring (1) and the inner ring (2), then a tool is used for enabling two connecting blocks (505) to move towards opposite directions through holes (506) so as to enable a first elastic clamping ring (503) to contract, then the first elastic clamping ring (503) is installed at the top of the sealing cover (501) and is in contact with the inner wall of the outer ring (1), the first elastic clamping ring (503) resets by relieving the stress on the connecting blocks (505), so that the first elastic clamping ring (503) is in tight contact with the inner wall of the outer ring (1), then, the connecting block (505) on the second elastic clamping ring (504) moves relatively, the installation process of the first elastic clamping ring (503) is repeated, the second elastic clamping ring (504) is in close contact with the inner wall of the inner ring (2), and the sealing cover (501) is fastened between the outer ring (1) and the inner ring (2);

s2, after the sealing cover (501) is installed, a screw (602) penetrates through the sealing cover (501) and enters the inside of the retainer (3), the oil storage ring (601) is fixed on the sealing cover (501), then lubricating oil is added into the oil storage ring (601), the lubricating oil enters the inside of the retainer (3) through the oil pipe (605), after the retainer (3) is filled with the lubricating oil, the lubricating oil is continuously injected to push the piston ring (604) to move upwards on the surface of the screw (602) and press the spring (603) to contract the spring (603), the injection is stopped after the oil storage ring (601) is filled, after the lubricating oil in the retainer (3) is completely worn, the spring (603) pushes the piston ring (604) to move on the surface of the screw (602) through the elastic force action of the spring (603), and the lubricating oil in the oil storage ring (601) is extruded into the retainer (3) through the oil pipe (605), the lubricating oil in the retainer (3) is automatically supplemented at proper time.