阅读说明：本技术 一种陶瓷轴承 (Ceramic bearing ) 是由 孔玉 韦伟 朱成 于 2020-03-16 设计创作，主要内容包括：本发明属于机械零件技术领域,具体的说是一种陶瓷轴承,包括外圈、内圈和滚珠,所述外圈内表面固连有均匀布置的固定套；所述滚珠位于固定套内,且滚珠部分穿出固定套并接触内圈外表面设置；所述固定套内壁通过连接柱转动连接有均匀布置的滚球；所述滚球接触滚珠表面设置,使滚珠不接触固定套内壁；所述固定套内壁固连有多个海绵柱；所述海绵柱一端接触滚珠表面设计；所述外圈的外侧面上方设置有凹槽,在所述凹槽内设置有润滑装置,所述润滑装置包括出油组件和复位组件；本发明实现轴承在工作过程中不需要人工加润滑油,且使润滑油均匀涂抹于滚珠表面。(The invention belongs to the technical field of mechanical parts, and particularly relates to a ceramic bearing which comprises an outer ring, an inner ring and balls, wherein the inner surface of the outer ring is fixedly connected with uniformly arranged fixed sleeves; the ball is positioned in the fixed sleeve, and the ball part penetrates out of the fixed sleeve and is contacted with the outer surface of the inner ring; the inner wall of the fixed sleeve is rotatably connected with uniformly arranged rolling balls through a connecting column; the rolling balls are arranged in contact with the surfaces of the rolling balls, so that the rolling balls are not in contact with the inner wall of the fixed sleeve; the inner wall of the fixed sleeve is fixedly connected with a plurality of sponge columns; one end of the sponge column is designed to contact the surface of the ball; a groove is formed above the outer side surface of the outer ring, a lubricating device is arranged in the groove, and the lubricating device comprises an oil outlet assembly and a reset assembly; the invention realizes that the bearing does not need to be added with lubricating oil manually in the working process, and the lubricating oil is uniformly coated on the surface of the ball.)

1. The utility model provides a ceramic bearing, includes outer lane (1), inner circle (4) and ball (7), ball (7) are located in the middle of outer lane (1) and inner circle (4), its characterized in that: the inner surface of the outer ring (1) is fixedly connected with uniformly arranged fixed sleeves (31); the ball (7) is positioned in the fixed sleeve (31), and the ball part penetrates through the fixed sleeve (31) and contacts the outer surface of the inner ring (4); the inner wall of the fixed sleeve (31) is rotatably connected with uniformly arranged rolling balls (32) through a connecting column; the rolling ball (32) is arranged in contact with the surface of the rolling ball (7), so that the rolling ball (7) is not in contact with the inner wall of the fixed sleeve (31); the inner wall of the fixed sleeve (31) is fixedly connected with a plurality of sponge columns (33); one end of the sponge column (33) is in contact with the surface of the ball (7); a groove is formed in the upper portion of the outer side surface of the outer ring (1), a lubricating device is arranged in the groove and comprises an oil outlet assembly (2) and a reset assembly (3), a balance rod (11) is arranged between the oil outlet assembly (2) and the reset assembly (3), a support rod (10) is arranged in the groove, the support rod (10) is located in the middle of the balance rod (11) and connected with the balance rod (11) through a rotating shaft, an oil outlet hole (8) is formed in the bottom of the groove, the oil outlet hole (8) extends to the position right above the ball (7) in the fixed sleeve (31), a fixed block (5) is arranged above the outer side of the inner ring (4), and a first ball head rod (6) is arranged on the fixed block (5);

the oil outlet assembly (2) is located on the rear side of the oil outlet (8), the oil outlet assembly (2) comprises a telescopic pipe (12), a fixed pipe (13), a first compression spring (14) and a moving rod (15), the telescopic pipe (12) is installed at the bottom of the groove, an oil outlet (9) is formed in the front surface of the telescopic pipe (12), the moving rod (15) is arranged on the inner upper surface of the telescopic pipe (12), the upper end surface of the moving rod (15) is arranged in a T shape, the fixed pipe (13) is arranged below the moving rod (15), the lower end of the moving rod (15) extends into the fixed pipe (13), and the moving rod (15) can move in the fixed pipe (13) in the vertical direction;

a first compression spring (14) is sleeved on the outer sides of the moving rod (15) and the fixed tube (13), the upper end of the first compression spring (14) is fixed on the lower surface of the T-shaped end of the moving rod (15), the lower end of the first compression spring (14) is fixed on the groove bottom of the groove, a convex block is arranged on the upper surface of the telescopic tube (12) and fixedly connected with one end of the balancing rod (11), a rectangular through hole is formed in the middle of the balancing rod (11), a rotating shaft on the supporting rod (10) is installed in the rectangular through hole, and the rotating shaft can move in the rectangular through hole; the resetting component (3) is used for driving the oil outlet component (2) to move; the middle part of the outer surface of the inner ring (4) is designed to be sunken, the fixing sleeve (31) extends into the sunken inner part, and the fixing sleeve (31) is not contacted with the inner ring; the balls (7) contact the bottom-most design of the surface depression of the inner ring (4).

2. A ceramic bearing according to claim 1, wherein: the resetting component (3) comprises a resetting spring (18), a spring plate (19) and a second ball head rod (20), the spring plate (19) is fixedly arranged at the bottom of the groove, the spring plate (19) is positioned on the front side of the oil outlet hole (8), a hole through which the second ball head rod (20) can pass is formed in the spring plate (19), the second ball head rod (20) is installed in the space, an installation plate (17) is fixedly arranged at the upper end of the second ball head rod (20), a perforating block (16) is arranged above the installation plate (17), a hole through which the balancing rod (11) can pass is formed in the perforating block (16), and the other end of the balancing rod (11) is installed in the hole of the perforating block (16);

be provided with on outer lane (1) recess tank bottom and supply the through-hole that second bulb pole (20) passed, the outside cover of second bulb pole (20) is equipped with reset spring (18), the one end of reset spring (18) is installed the lower surface of mounting panel (17), the other end setting of reset spring (18) is in the upper surface of spring board (19), second bulb pole (20) can carry out the removal of upper and lower direction in the through-hole.

3. A ceramic bearing according to claim 1, wherein: extrusion grooves (41) which are uniformly distributed are formed in the inner ring (4); a sponge sheet (42) is fixedly connected in the extrusion groove (41); the extrusion grooves (41) are communicated to the concave part of the outer surface of the inner ring (4) contacted with the ball (7) through uniformly arranged holes; storage grooves (43) which are uniformly distributed are formed in the inner ring (4); the accumulation groove (43) is communicated with the extrusion groove (41), the accumulation groove (43) is positioned on one side of the extrusion groove (41) far away from the first ball-end rod (6), and one side of the accumulation groove (43) close to the outer surface of the inner ring (4) is communicated with the outside; both sides of the inner wall of the hoarding groove (43) are fixedly connected with soft rubber (44); the opposite sides of the two soft rubbers (44) are contacted with each other in the initial state; the inner wall of the outer ring (1) is fixedly connected with uniformly arranged recovery pipes (45); the lower end of the recovery pipe (45) is inserted into the stockpiling groove (43), the inner space of the extension pipe (12) is communicated with the recovery pipe (45), a one-way valve is arranged at the communication position, and the oil outlet (9) is provided with the one-way valve.

4. A ceramic bearing according to claim 1, wherein: the lower extreme of first bulb pole (6) is provided with lower surface and left and right sides face open-ended inner chamber, be provided with upper end open-ended inside groove in fixed block (5), the intracavity is provided with the chucking subassembly, the chucking subassembly is including pressing piece (21), cylinder pole (22), second compression spring (23) and gag lever post (24), press piece (21) back of the body to distribute in the inner chamber, the other end of gag lever post (24) passes opening exposure in the outside about first bulb pole (6) lower extreme, just be provided with two gag lever posts (24) that distribute back of the body according to the inner terminal surface of piece (21).

5. The ceramic bearing of claim 4, wherein the lower end of the stopper rod (24) is shaped like L and is mounted on the inner groove of the fixing block (5), the pressing block (21) and the stopper rod (24) are provided with cylindrical grooves for the cylindrical rod (22) to move, the cylindrical rod (22) is mounted in the cylindrical grooves, the outer side of the cylindrical rod (22) is sleeved with a second compression spring (23), two ends of the second compression spring (23) are respectively fixed on the inner surface of the stopper rod (24), and the pressing block (21) and the stopper rod (24) move in the inner groove and the inner cavity in the horizontal direction.

Technical Field

The invention belongs to the technical field of mechanical parts, and particularly relates to a ceramic bearing.

Background

The performances of four bearing materials, namely common bearing steel AISI52100GCr15, stainless steel AISI4409Cr18, silicon nitride Si3N4 and zirconium oxide ZrO2 are compared, and a ceramic bearing is used as an important mechanical base part and is increasingly and widely applied to various fields of national civilization in recent decades since the ceramic bearing has incomparable excellent performances of a metal bearing, such as high temperature resistance, super strength and the like in the world of new materials.

Some existing ceramic bearings used on motors have the problems that lubricating oil can be added only by disassembling the motors, and the lubricating oil is forgotten or delayed to be added sometimes, so that the bearings are dry, the friction is serious, and the bearings are abraded too fast.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides a ceramic bearing.

The technical scheme adopted by the invention for solving the technical problems is as follows: a ceramic bearing comprises an outer ring, an inner ring and balls, wherein the balls are positioned between the outer ring and the inner ring, and the inner surface of the outer ring is fixedly connected with a uniformly distributed fixed sleeve; the ball is positioned in the fixed sleeve, and the ball part penetrates out of the fixed sleeve and is contacted with the outer surface of the inner ring; the inner wall of the fixed sleeve is rotatably connected with uniformly arranged rolling balls through a connecting column; the rolling balls are arranged in contact with the surfaces of the rolling balls, so that the rolling balls are not in contact with the inner wall of the fixed sleeve; the inner wall of the fixed sleeve is fixedly connected with a plurality of sponge columns; one end of the sponge column is designed to contact the surface of the ball; a groove is formed above the outer side surface of the outer ring, a lubricating device is arranged in the groove and comprises an oil outlet assembly and a reset assembly, a balance rod is arranged between the oil outlet assembly and the reset assembly, a support rod is arranged in the groove and positioned in the middle of the balance rod and connected with the balance rod through a rotating shaft, an oil outlet hole is formed in the bottom of the groove and extends to the position right above the ball in the fixed sleeve, a fixed block is arranged above the outer side of the inner ring, and a first ball head rod is arranged on the fixed block;

the oil outlet assembly is positioned at the rear side of the oil outlet and comprises a telescopic pipe, a fixed pipe, a first compression spring and a moving rod, the telescopic pipe is installed at the bottom of the groove, an oil outlet is formed in the front surface of the telescopic pipe, the moving rod is arranged on the inner upper surface of the telescopic pipe, the upper end surface of the moving rod is arranged in a T shape, the fixed pipe is arranged below the moving rod, the lower end of the moving rod extends into the fixed pipe, and the moving rod can move in the fixed pipe in the vertical direction;

a first compression spring is sleeved outside the moving rod and the fixed tube, the upper end of the first compression spring is fixed on the lower surface of the T-shaped end of the moving rod, the lower end of the first compression spring is fixed on the groove bottom of the groove, the upper surface of the telescopic tube is provided with a lug, the lug is fixedly connected with one end of the balancing rod, a rectangular through hole is formed in the middle of the balancing rod, a rotating shaft on the supporting rod is installed in the rectangular through hole, and the rotating shaft can move in the rectangular through hole; the resetting component is used for driving the oil outlet component to move; the during operation, the bearing rotates when using, drive the balancing pole work through reset assembly, the subassembly that produces oil works under the drive of balancing pole, make lubricating oil in the expansion pipe come out from the oil-out, reentrant in the oil outlet flows into the ball, lubricate the ball, at the whole process of bearing work, lubricating arrangement is continuous to the ball lubrication, lubricating oil gets into fixed cover through the oil-out simultaneously and is absorbed by the sponge post, thereby through sponge post contact ball surface, realize that lubricating oil evenly lasts and paint on the ball surface, thereby further strengthen the lubricated effect of ball, simultaneously through spin contact ball surface, effectively reduce the frictional force of ball, thereby reduce the resistance, and lubricating oil can effectively reduce the heat that the friction produced between ball and the spin.

Preferably, the resetting component comprises a resetting spring, a spring plate and a second ball head rod, the spring plate is fixedly arranged at the bottom of the groove, the spring plate is positioned on the front side of the oil outlet hole, a hole for the second ball head rod to pass through is formed in the spring plate, the second ball head rod is arranged in the cavity, an installation plate is fixedly arranged at the upper end of the second ball head rod, a perforation block is arranged above the installation plate, a hole for the balancing rod to pass through is formed in the perforation block, and the other end of the balancing rod is arranged in the hole of the perforation block;

a through hole through which the second ball head rod can pass is formed in the bottom of the outer ring groove, a return spring is sleeved on the outer side of the second ball head rod, one end of the return spring is installed on the lower surface of the installation plate, the other end of the return spring is arranged on the upper surface of the spring plate, and the second ball head rod can move in the through hole in the vertical direction; when the lubricating oil lubricating device works, the first ball head rod is in contact with the second ball head rod, so that the second ball head rod moves upwards, the reset spring is driven to move upwards to be in a stretching state, the perforating block and the mounting plate move upwards, the front end of the balancing rod moves upwards, the rear end of the balancing rod moves downwards through matching with the rotating shaft on the supporting rod, the telescopic pipe contracts downwards and moves, the moving rod moves downwards, and the first compression spring is compressed, so that lubricating oil in the telescopic pipe flows out of an oil outlet and lubricates balls in the oil outlet; when the first ball head rod is separated from the second ball head rod, the return spring moves downwards, the mounting plate and the perforated block move downwards, the front end of the balancing rod moves downwards, the rear end of the balancing rod moves upwards, the first compression spring moves upwards due to the elastic performance of the first compression spring, the moving rod is driven to move upwards, the telescopic pipe is driven to move upwards, and then lubricating oil cannot flow out of the oil outlet.

Preferably, the middle part of the outer surface of the inner ring is designed to be sunken, the fixing sleeve extends into the sunken part, and the fixing sleeve is not contacted with the inner ring; the ball contacts the bottom design of the surface depression of the inner ring; the during operation, through the sunken design at inner circle surface middle part, and fixed cover extends to sunken interior design, can effectively reduce the area of the outer air of ball contact to reduce the volume that the ball surface is adhered to dust in the outer air, thereby keep the ball surface clean, thereby reduce the rotation frictional force of ball, improve the lubricated effect of lubricating oil simultaneously, prevent caking behind a large amount of dust of lubricating oil contact, influence the use of bearing, effectively improve the life of bearing simultaneously.

Preferably, extrusion grooves which are uniformly distributed are formed in the inner ring; a sponge sheet is fixedly connected in the extrusion groove; the extrusion grooves are communicated to the concave parts of the outer surface of the inner ring, which are contacted with the balls, through uniformly arranged holes; storage grooves which are uniformly distributed are formed in the inner ring; the accumulation groove is communicated with the extrusion groove, is positioned on one side of the extrusion groove far away from the first ball head rod, and is communicated with the outside on one side close to the outer surface of the inner ring; soft rubber is fixedly connected to both sides of the inner wall of the hoarding groove; the opposite sides of the two soft rubbers are in contact with each other in the initial state; the inner wall of the outer ring is fixedly connected with recovery pipes which are uniformly distributed; the lower end of the recovery pipe is inserted into the stockpiling groove, the inner space of the extension pipe is communicated with the recovery pipe, a one-way valve is arranged at the communication position, and the oil outlet is provided with the one-way valve; during operation, flow to the extrusion inslot through the trompil behind the ball at lubricating oil, absorbed by the sponge piece, at the bearing rotation in-process, because the continuous lubricating oil of absorption of sponge piece, make lubricating oil in the sponge piece throw away under the centrifugal force effect, get into and hoard up the inslot, when the extension tube is tensile to make at the tensile messenger of first compression spring, through the effect of two check valves, the cooperation is retrieved in the pipe makes the lubricating oil who hoards up the inslot flow in the extension tube again, realize the reuse of lubricating oil, reduce resource consumption, prevent simultaneously that the interior lubricating oil of inner circle from too much leading to ball frictional force to rise, thereby improve bearing life when improving bearing performance.

Preferably, the lower extreme of first bulb pole is provided with lower surface and left and right sides face open-ended inner chamber, be provided with upper end open-ended inside groove in the fixed block, the intracavity is provided with the chucking subassembly, the chucking subassembly includes according to piece, cylinder pole, second compression spring and gag lever post, according to piece back of the body distribution in the inner chamber, the other end of gag lever post passes opening is exposed in the outside about first bulb pole lower extreme, just according to the interior terminal surface of piece be provided with two gag lever posts that distribute mutually.

Preferably, the lower end of the limiting rod is arranged in an L shape and is installed on an inner groove of the fixed block, a cylindrical groove for the cylindrical rod to move is formed in the pressing block and the limiting rod, the cylindrical rod is installed in the cylindrical groove, a second compression spring is sleeved on the outer side of the cylindrical rod, two ends of the second compression spring are respectively fixed on the inner surface of the limiting rod, the pressing block and the limiting rod move in the inner groove and the inner cavity in the horizontal direction, when the pressing block is pressed inwards, the second compression spring is compressed, the cylindrical rod moves in the cylindrical groove in the pressing block, the limiting rod moves inwards, when the pressing block and the limiting rod move to a proper position, the first ball head rod can be matched with the fixed block, the limiting rod is placed in the inner groove of the fixed block, the pressing block is released, the second compression spring moves outwards due to elastic performance, the limiting rod is driven to move outwards until the limiting rod is matched with the inner groove of the fixed block, the first ball head rod is clamped, and the same principle can be repeated when the first ball head rod is taken down.

The invention has the following beneficial effects:

1. according to the ceramic bearing, the oil outlet assembly and the reset assembly are arranged, so that the bearing does not need to be manually added with lubricating oil in the working process, the second ball head rod is matched with the first ball head rod, the ball is continuously lubricated by the lubricating oil, and the lubricating oil is uniformly coated on the surface of the ball by matching with the sponge column.

2. According to the ceramic bearing, the first ball head rod and the clamping assembly are arranged, so that the ceramic bearing can be conveniently detached and installed, and the ball can be lubricated or stopped to lubricate at any time.

3. According to the ceramic bearing, lubricating oil is recycled after lubricating balls by the storage groove, the extrusion groove and the recovery pipe, so that energy consumption is effectively reduced, the utilization rate of the lubricating oil is improved, and the service life of the bearing is prolonged.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a longitudinal cross-sectional structural schematic view of the present invention;

FIG. 4 is a schematic view of the structure of the lubricating device of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 2 at A;

FIG. 6 is an enlarged view of a portion of FIG. 3 at B;

in the figure: the oil-saving device comprises an outer ring 1, an oil outlet component 2, a reset component 3, an inner ring 4, a fixed block 5, a first ball head rod 6, balls 7, an oil outlet 8, an oil outlet 9, a support rod 10, a balance rod 11, an extension pipe 12, a fixed pipe 13, a first compression spring 14, a moving rod 15, a perforated block 16, a mounting plate 17, a reset spring 18, a spring plate 19, a second ball head rod 20, a pressing block 21, a cylindrical rod 22, a second compression spring 23, a limiting rod 24, a fixed sleeve 31, a rolling ball 32, a sponge column 33, an extrusion groove 41, a sponge sheet 42, a storage groove 43, soft rubber 44 and a recovery pipe 45.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 and 6, the ceramic bearing of the present invention comprises an outer ring 1, an inner ring 4 and balls 7, wherein the balls 7 are located between the outer ring 1 and the inner ring 4, and the inner surface of the outer ring 1 is fixedly connected with uniformly arranged fixing sleeves 31; the ball 7 is positioned in the fixed sleeve 31, and part of the ball penetrates through the fixed sleeve 31 and contacts the outer surface of the inner ring 4; the inner wall of the fixed sleeve 31 is rotatably connected with uniformly arranged rolling balls 32 through a connecting column; the rolling ball 32 is arranged in contact with the surface of the ball 7, so that the ball 7 is not in contact with the inner wall of the fixed sleeve 31; a plurality of sponge columns 33 are fixedly connected with the inner wall of the fixed sleeve 31; one end of the sponge column 33 is designed to contact the surface of the ball 7; a groove is formed above the outer side surface of the outer ring 1, a lubricating device is arranged in the groove and comprises an oil outlet assembly 2 and a reset assembly 3, a balance rod 11 is arranged between the oil outlet assembly 2 and the reset assembly 3, a support rod 10 is arranged in the groove and is positioned in the middle of the balance rod 11, the balance rod and the reset assembly are connected through a rotating shaft, an oil outlet 8 is formed in the bottom of the groove, the oil outlet 8 extends to the position right above the ball 7 in the fixed sleeve 31, a fixed block 5 is arranged above the outer side of the inner ring 4, and a first ball head rod 6 is arranged on the fixed block 5;

the oil outlet assembly 2 is located at the rear side of the oil outlet 8, the oil outlet assembly 2 comprises a telescopic pipe 12, a fixed pipe 13, a first compression spring 14 and a moving rod 15, the telescopic pipe 12 is installed at the bottom of the groove, an oil outlet 9 is formed in the front surface of the telescopic pipe 12, the moving rod 15 is arranged on the upper surface in the telescopic pipe 12, the upper end surface of the moving rod 15 is T-shaped, the fixed pipe 13 is arranged below the moving rod 15, the lower end of the moving rod 15 extends into the fixed pipe 13, and the moving rod 15 can move in the fixed pipe 13 in the vertical direction;

a first compression spring 14 is sleeved outside the moving rod 15 and the fixed tube 13, the upper end of the first compression spring 14 is fixed on the lower surface of the T-shaped end of the moving rod 15, the lower end of the first compression spring 14 is fixed on the groove bottom of the groove, the upper surface of the extension tube 12 is provided with a convex block, the convex block is fixedly connected with one end of the balance rod 11, a rectangular through hole is arranged in the middle of the balance rod 11, a rotating shaft on the support rod 10 is installed in the rectangular through hole, and the rotating shaft can move in the rectangular through hole; the resetting component 3 is used for driving the oil outlet component 2 to move; during operation, the bearing rotates when using, drive the work of balancing pole 11 through reset assembly 3, go out oil assembly 2 and work under the drive of balancing pole 11, make lubricating oil in the flexible pipe 12 come out from oil-out 9, reentrant in oil outlet 8 flows into ball 7, lubricate ball 7, whole process at bearing work, lubricating arrangement is continuous to ball 7 lubrication, lubricating oil gets into fixed cover 31 through oil-out 9 and is absorbed by sponge post 33 in simultaneously, thereby through sponge post 33 contact ball 7 surface, realize that even continuous the paining in ball 7 surface of lubricating oil, thereby further strengthen ball 7's lubricated effect, simultaneously through ball 32 contact ball 7 surface, effectively reduce ball 7's frictional force, thereby reduce the resistance, and lubricating oil can effectively reduce the heat that the friction produced between ball 7 and ball 32.

As an embodiment of the present invention, the reset assembly 3 includes a reset spring 18, a spring plate 19 and a second ball rod 20, the spring plate 19 is fixedly disposed at the bottom of the groove, the spring plate 19 is located at the front side of the oil outlet 8, a hole through which the second ball rod 20 can pass is formed in the spring plate 19, the second ball rod 20 is mounted in the cavity, a mounting plate 17 is fixedly disposed at the upper end of the second ball rod 20, a through hole block 16 is disposed above the mounting plate 17, a hole through which the balancing rod 11 can pass is formed in the through hole block 16, and the other end of the balancing rod 11 is mounted in the hole of the through hole block 16;

a through hole through which the second ball head rod 20 can pass is formed in the groove bottom of the groove of the outer ring 1, a return spring 18 is sleeved outside the second ball head rod 20, one end of the return spring 18 is installed on the lower surface of the mounting plate 17, the other end of the return spring 18 is arranged on the upper surface of the spring plate 19, and the second ball head rod 20 can move in the through hole in the vertical direction; when the oil lubrication device works, the first ball head rod 6 is in contact with the second ball head rod 20, so that the second ball head rod 20 moves upwards, the return spring 18 is driven to move upwards to be in a stretching state, the perforation block 16 and the mounting plate 17 move upwards, the front end of the balance rod 11 moves upwards, the rear end of the balance rod 11 moves downwards through matching with a rotating shaft on the support rod 10, the telescopic pipe 12 contracts downwards and moves, the moving rod 15 moves downwards, and the first compression spring 14 is compressed, so that lubricating oil in the telescopic pipe 12 flows out of the oil outlet 9 and flows into the oil outlet 8 to lubricate the balls 7; when the first ball-head rod 6 is separated from the second ball-head rod 20, the return spring 18 moves downwards, the mounting plate 17 and the perforated block 16 move downwards, the front end of the balancing rod 11 moves downwards, the rear end moves upwards, the first compression spring 14 moves upwards due to the elastic property of the first compression spring, the moving rod 15 is driven to move upwards, the telescopic pipe 12 is driven to move upwards, and then the lubricating oil cannot flow out of the oil outlet 9.

As an embodiment of the present invention, the middle part of the outer surface of the inner ring 4 is designed to be concave, and the fixing sleeve 31 extends to the concave design, so that the fixing sleeve 31 is not in contact with the inner ring; the ball 7 contacts the most bottom design of the surface depression of the inner ring 4; the during operation, through the sunken design at 4 surface middle parts of inner circle, and fixed cover 31 extends to sunken interior design, can effectively reduce the area of ball 7 contact outer air to reduce the volume that ball 7 surfaces are adhered to dust in the outer air, thereby keep ball 7 clean surfaces, thereby reduce ball 7's rotation frictional force, improve the lubricated effect of lubricating oil simultaneously, prevent caking behind the a large amount of dust of lubricating oil contact, influence the use of bearing, effectively improve the life of bearing simultaneously.

As an embodiment of the present invention, the inner ring 4 is provided with uniformly arranged extrusion grooves 41 therein; a sponge sheet 42 is fixedly connected in the extrusion groove 41; the extrusion grooves 41 are communicated to the concave part of the outer surface of the inner ring 4 contacted with the ball 7 through uniformly arranged holes; storage grooves 43 which are uniformly distributed are formed in the inner ring 4; the accumulation groove 43 is communicated with the extrusion groove 41, the accumulation groove 43 is positioned at one side of the extrusion groove 41 far away from the first ball-end rod 6, and one side of the accumulation groove 43 close to the outer surface of the inner ring 4 is communicated with the outside; both sides of the inner wall of the stocking groove 43 are fixedly connected with soft rubber 44; the two soft rubbers 44 are designed to contact each other at opposite sides in an initial state; the inner wall of the outer ring 1 is fixedly connected with uniformly arranged recovery pipes 45; the lower end of the recovery pipe 45 is inserted into the storage groove 43, the inner space of the extension pipe 12 is communicated with the recovery pipe 45, a one-way valve is arranged at the communication position, and the oil outlet 9 is provided with a one-way valve; when the bearing rotates, the lubricating oil continuously absorbs the lubricating oil due to the sponge sheet 42, the lubricating oil in the sponge sheet 42 is thrown out under the action of centrifugal force and enters the accumulating groove 43, when the first compression spring 14 stretches to enable the telescopic pipe to stretch, the lubricating oil in the accumulating groove 43 flows into the telescopic pipe 12 again under the action of the two one-way valves by matching with the recovery pipe 45 under the action of the two one-way valves, the recycling of the lubricating oil is realized, the resource consumption is reduced, and meanwhile, the friction force of the balls 7 is prevented from rising due to excessive lubricating oil in the inner ring 4, so that the service life of the bearing is prolonged while the performance of the bearing is improved, and meanwhile, the lubricating oil in the accumulating groove 43 can be effectively prevented from being thrown out through the soft rubber 44 to cause the waste of the lubricating oil.

As an embodiment of the present invention, an inner cavity with an opening on a lower surface and left and right side surfaces is formed at a lower end of the first ball rod 6, an inner groove with an opening on an upper end is formed in the fixing block 5, a clamping assembly is arranged in the inner cavity, the clamping assembly includes a pressing block 21, a cylindrical rod 22, a second compression spring 23 and a limiting rod 24, the pressing block 21 is distributed in the inner cavity in a reverse manner, the other end of the limiting rod 24 penetrates through the left and right openings at the lower end of the first ball rod 6 and is exposed to the outside, and two limiting rods 24 distributed in a reverse manner are arranged on an inner end surface of the pressing block 21.

In an embodiment of the present invention, the lower end of the stopper rod 24 is formed in an "L" shape and is mounted on the inner groove of the fixing block 5, the pressing block 21 and the stopper rod 24 are provided with cylindrical grooves for the movement of the cylindrical rod 22, the cylindrical rod 22 is mounted in the cylindrical grooves, and the outer side of the cylindrical rod 22 is sleeved with the second compression spring 23, both ends of the second compression spring 23 are respectively fixed on the inner surface of the stopper rod 24, and the pressing block 21 and the stopper rod 24 move in the horizontal direction in the inner groove and the inner cavity, in operation, by pressing the pressing block 21 inward, the second compression spring 23 is compressed, the cylindrical rod 22 moves in the cylindrical groove in the pressing block 21, so that the stopper rod 24 moves inward, when moving to a proper position, the first ball head rod 6 is engaged with the fixing block 5, the stopper rod 24 is placed in the inner groove of the fixing block 5, the pressing block 21 is released, and the second compression spring 23 moves outward due to elastic properties, thereby driving the stopper rod 24 to move outward until it engages with the fixing block 5, so that the first ball head 6 can be engaged, and the principle can be repeated if the ball head is taken out.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.