CN112377518B

CN112377518B - Sliding bearing

Info

Publication number: CN112377518B
Application number: CN202011187490.2A
Authority: CN
Inventors: 沈睿; 刘法亭
Original assignee: Xiangyang Xinghuo Automotive Bearings Co ltd
Current assignee: Xiangyang Xinghuo Automotive Bearings Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2023-04-18
Anticipated expiration: 2040-10-30
Also published as: CN112377518A

Abstract

The invention relates to the field of sliding bearings, in particular to a sliding bearing which comprises an end cover, a bearing sleeve and a bearing seat, wherein the top of the end cover is provided with two screw holes, the end cover is positioned at the top of the bearing seat, both ends of the bearing seat are provided with a stud hole for fixing the bearing seat, the bearing seat is provided with a lower bearing cover positioned in the middle of the top of the bearing seat, and an upper bearing cover is arranged above the lower bearing cover. Can solve the slide bearing on the market and only can the journal bearing to journal bearing, only can the endwise rotation to endwise slide bearing, lack the slide bearing that can the endwise slip freely switch on the market to slide bearing no matter on the market is axial or radial all needs to add lubricating oil or other lubricating liquid to the sliding surface and lubricate, nevertheless, the inside lubricating liquid that adds of current slide bearing often has the inhomogeneous problem of distribution, has the poor problem of lubricated effect.

Description

Sliding bearing

Technical Field

The invention relates to the field of sliding bearings, in particular to a sliding bearing.

Background

Plain bearings, bearings that operate under sliding friction. The sliding bearing works stably and reliably without noise. Half of the sliding bearing operates under the condition of liquid lubrication, the sliding surface is separated by lubricating oil without direct contact, the friction loss and the surface abrasion can be greatly reduced, and the oil film also has certain vibration absorption capacity. The conventional sliding bearings can be classified into a radial sliding bearing and an axial sliding bearing, and as the name suggests, the sliding manner of the radial sliding bearing is radial sliding, and the sliding manner of the axial sliding bearing is axial.

However, the sliding bearing on the market can only rotate in the radial direction with respect to the radial sliding bearing, and can only rotate in the axial direction with respect to the axial sliding bearing, and a sliding bearing which can freely switch between the radial sliding and the axial sliding is not available on the market, and lubricating oil or other lubricating liquid needs to be added to the sliding surface for lubrication regardless of the axial direction or the radial direction of the sliding bearing on the market.

Disclosure of Invention

The invention aims to provide a sliding bearing, which can solve the problems that the sliding bearing on the market can only rotate in the radial direction aiming at the radial sliding bearing and can only rotate in the axial direction aiming at the axial sliding bearing, the sliding bearing which can freely switch between the radial sliding and the axial sliding is lacked on the market, and the sliding bearing on the market needs to add lubricating oil or other lubricating liquid to the sliding surface for lubrication no matter the sliding bearing is in the axial direction or the radial direction, but the added lubricating liquid in the traditional sliding bearing is not uniform in distribution and poor in lubricating effect.

The purpose of the invention can be realized by the following technical scheme:

a sliding bearing comprises an end cover, a bearing sleeve and a bearing seat, wherein two screw holes are formed in the top of the end cover, the end cover is positioned at the top of the bearing seat, two screw holes for fixing the bearing seat are formed in two ends of the bearing seat, a lower bearing cover positioned in the middle of the top of the bearing seat is arranged on the bearing seat, an upper bearing cover is arranged above the lower bearing cover and positioned at the bottom of the end cover, the upper bearing cover and the lower bearing cover are matched for use, the bearing sleeve is arranged between the upper bearing cover and the lower bearing cover, a shaft hole is formed in the middle of the bearing sleeve, two gaps are reserved between the upper bearing cover and the lower bearing cover, and the two gaps are respectively positioned on two sides of the bearing sleeve;

an oil cavity in a U-shaped structure is arranged inside the lower bearing cover, the tops of two ends of the lower bearing cover are respectively provided with an adhesive groove connected with the oil cavity, a plurality of partition cavities which are uniformly distributed are arranged inside the adhesive groove, the inside of each partition cavity is connected with a rotatable steel ball in a shaft mode, the bottoms of the steel balls are immersed into the oil cavity, the tops of the steel balls are exposed from the top of the adhesive groove and are flush with the bottom plane of the gap, and an oil injection check valve connected with the oil cavity is arranged on the side wall of the bottom of the lower bearing cover;

be equipped with the groove of accomodating of two symmetries on the bearing housing outer wall outward, two accomodate inslot portion and all install a sand grip, two the top of sand grip all is provided with the smooth arc arch of outer wall, and two the bottom of sand grip all is connected with a strip of paper used for sealing that is located accomodate the inslot portion, the strip of paper used for sealing bottom is connected with two pneumatic telescopic links, the bearing housing lateral wall is provided with two and accomodates the mounting groove that the groove is linked together, and just two mounting groove insides all inlayed a small-size cylinder, small-size cylinder pipe connection pneumatic telescopic link.

Preferably, two ends of each of the two gaps are provided with a sealing plate for sealing the gap.

Preferably, the bellied width of sand grip, arc all with accomodate the width size looks adaptation in groove, and the sand grip is accomodating and is getting into to accomodate the groove after, the bellied top of arc is kept flat with the top of accomodating the groove.

Preferably, two of the gaps are provided with butt joint holes butted with the screw holes, and one sides, far away from the two butt joint holes, of the two butt joint holes are provided with grooves located on the side walls of the bearing seats.

The invention has the beneficial effects that: because the inside of the lower bearing cover is provided with an oil cavity which is in a U-shaped structure, the tops of two ends of the lower bearing cover are respectively provided with a sticky groove which is connected with the oil cavity, the inside of the sticky groove is provided with a plurality of partitioned cavities which are uniformly distributed, the inside of each partitioned cavity is connected with a rotatable steel ball in a shaft mode, the bottom of each steel ball is immersed into the oil cavity, the top of each steel ball is exposed out of the top of the sticky groove and is flush with the bottom plane of the gap, lubricating oil can be injected into the oil cavity in the lower bearing cover after the oil injection check valve is opened, the lubricating oil overflows from the top of the sticky groove, and because two ends of the gap are sealed, the lubricating oil can permeate into sliding gaps between the bearing sleeve and the upper bearing cover and the lower bearing cover to play a role of lubrication, and because the two sticky grooves are arranged at the gap, when the sliding bearing slides in the radial direction, the steel ball can rotate on the sticky groove under the stirring of the convex strip and the arc-shaped bulge and take out lubricating oil from the inside of the oil cavity, so that in the process of radial sliding of the bearing sleeve, the convex strip and the arc-shaped bulge can be contaminated with the lubricating oil, when the sliding bearing needs to be axially used, the convex strip and the arc-shaped bulge which are contaminated with the lubricating oil are retracted into the accommodating groove by driving the pneumatic telescopic rod through the small cylinder, at the moment, the lubricating oil contaminated on the convex strip and the arc-shaped bulge is squeezed at the top of the accommodating groove, because the convex strip and the arc-shaped bulge are already retracted into the accommodating groove, the bearing sleeve can rotate between the upper bearing cover and the lower bearing cover and can axially slide, and in the rotating process of the bearing sleeve between the upper bearing cover and the lower bearing cover, the lubricating oil squeezed at the top of the accommodating groove can be smeared on the bearing sleeve and the upper bearing cover along with the rotation of the bearing sleeve, the sliding gap between the lower bearing covers facilitates the coating of lubricating oil and simultaneously enables the coating of the lubricating oil to be more uniform, and the lubricating effect is improved;

because the clearance is arranged, and two containing grooves are arranged on the outer wall of the bearing sleeve, the two containing grooves are internally provided with raised lines connected with the pneumatic telescopic rod, so that the sliding bearing has two using states, the first radial sliding state is realized, the bearing sleeve is rotated to the state that the two containing grooves face the clearance, the small-sized cylinder is started, the pneumatic telescopic rod is driven by the small-sized cylinder to extend, so that the raised lines are ejected out from the containing grooves, at the moment, the two raised lines are both connected into the clearance, and the arc-shaped bulges on the raised lines are contacted with the steel balls on the sticking grooves, at the moment, the bearing sleeve can only slide back and forth between the upper bearing cover and the lower bearing cover due to the ejection of the raised lines, and the sliding is limited by the raised lines and the closing plates, make the bearing housing can not follow the upper bearing cap, break away from between the lower bearing cap, because the sand grip inserts inside the clearance, and inside being provided with one row of steel ball in the clearance, the steel ball can rotate on gluing the groove and take lubricating oil out from the oil pocket is inside, thereby at the bearing housing radial sliding's in-process, all can be infected with lubricating oil on sand grip and the arc arch, thereby make when slide bearing needs the axial to use, sand grip and the arc arch that will be infected with lubricating oil utilize the shrink of small-size cylinder drive pneumatic telescopic link and the groove is accomodate in the income, at this moment, the lubricating oil that is infected with on sand grip and the arc arch is crowded at the top of accomodating the groove, because sand grip and arc arch have been accomodate the groove by the income, thereby the bearing housing can be at the upper bearing cap, rotate between the lower bearing cap, can carry out endwise slip.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

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

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

FIG. 3 is a schematic structural view of the end cap of the present invention after removal;

FIG. 4 is a schematic view of a bearing seat structure according to the present invention;

FIG. 5 is a schematic view of a bearing housing after receiving the ribs of the present invention;

FIG. 6 is a schematic view of a bearing housing after ejection of a protrusion strip according to the present invention;

FIG. 7 is a schematic view of a sticky groove structure according to the present invention;

FIG. 8 is a schematic view of a seal structure according to the present invention;

in the figure: 1. an end cap; 2. screw holes; 3. an upper bearing cap; 4. a gap; 5. a lower bearing cap; 6. a bearing housing; 7. a bearing seat; 8. a stud hole; 9. a butt joint hole; 10. a groove; 11. a sticking groove; 12. steel balls; 13. injecting oil into a one-way valve; 14. a receiving groove; 15. a convex strip; 16. a small cylinder; 17. a shaft hole; 18. a seal; 19. a pneumatic telescopic rod; 20. an arc-shaped bulge; 21. and (7) closing the plate.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, a sliding bearing includes an end cover 1, a bearing housing 6 and a bearing seat 7, the top of the end cover 1 is provided with two screw holes 2, the end cover 1 is located at the top of the bearing seat 7, both ends of the bearing seat 7 are provided with a stud hole 8 for fixing the bearing seat, the bearing seat 7 is provided with a lower bearing cover 5 located at the middle position of the top thereof, an upper bearing cover 3 is arranged above the lower bearing cover 5, the upper bearing cover 3 is located at the bottom of the end cover 1, the upper bearing cover 3 is used in cooperation with the lower bearing cover 5, the bearing housing 6 is installed between the upper bearing cover 3 and the lower bearing cover 5, the middle of the bearing housing 6 is provided with a shaft hole 17, two gaps 4 are left between the upper bearing cover 3 and the lower bearing cover 5, and the two gaps 4 are respectively located at both sides of the bearing housing 6;

an oil cavity in a U-shaped structure is arranged in the lower bearing cover 5, the tops of two ends of the lower bearing cover 5 are respectively provided with a bonding groove 11 connected with the oil cavity, a plurality of partitioned cavities which are uniformly distributed are arranged in the bonding groove 11, the inside of each partitioned cavity is connected with a rotatable steel ball 12 in a shaft mode, the bottoms of the steel balls 12 are immersed in the oil cavity, the tops of the steel balls 12 are exposed out of the top of the bonding groove 11 and are flush with the bottom plane of the gap 4, and an oil injection one-way valve 13 connected with the oil cavity is arranged on the side wall of the bottom of the lower bearing cover 5; be equipped with the groove 14 of accomodating of two symmetries on the 6 outer walls of bearing housing, two are accomodate groove 14 inside and all install a sand grip 15, the top of two sand grips 15 all is provided with the glossy arc arch 20 of outer wall, and the bottom of two sand grips 15 all is connected with a strip of paper used for sealing 18 that is located the groove 14 inside of accomodating, 18 bottoms of strip of paper used for sealing are connected with two air

telescopic handle

19, 6 lateral walls of bearing housing are provided with two mounting grooves that are linked together with the groove 14 of accomodating, and two inside microcylinders 16 that all inlayed of mounting groove, microcylinder 16 pipe connection air telescopic handle 19. Two closing plates 21 for closing the gaps 4 are respectively arranged at two ends of each gap 4. The widths of the convex strips 15 and the arc-shaped protrusions 20 are matched with the width of the accommodating grooves 14, and after the convex strips 15 are accommodated into the accommodating grooves 14, the tops of the arc-shaped protrusions 20 are flush with the tops of the accommodating grooves 14. And the two gaps 4 are respectively provided with a butt joint hole 9 butted with the screw hole 2, and one side of the two butt joint holes 9 far away from each other is provided with a groove 10 positioned on the side wall of the bearing seat 7.

Because the inside of the lower bearing cover 5 is provided with an oil cavity in a U-shaped structure, the tops of the two ends of the lower bearing cover 5 are respectively provided with a sticky groove 11 connected with the oil cavity, the inside of the sticky groove 11 is provided with a plurality of partitioned cavities which are uniformly distributed, the inside of each partitioned cavity is connected with a rotatable steel ball 12, the bottom of each steel ball 12 is immersed into the oil cavity, the top of each steel ball 12 is exposed out of the sticky groove 11 and is level with the bottom plane of the gap 4, so that lubricating oil can be injected into the oil cavity inside the lower bearing cover 5 after the oil injection check valve 13 is opened, the lubricating oil overflows from the top of the sticky groove 11, and because the two ends of the gap 4 are sealed, the lubricating oil can permeate into sliding gaps between the bearing sleeve 6 and the upper bearing cover 3 and the lower bearing cover 5 to play a lubricating role, and because the two sticky grooves 11 are both arranged at the gap 4, when the sliding bearing slides in the radial direction, the steel balls 12 can rotate on the sticking groove 11 under the stirring of the convex strips 15 and the arc-shaped bulges 20 to take out the lubricating oil from the inside of the oil cavity, so that in the process of sliding the bearing sleeve 6 in the radial direction, the convex strips 15 and the arc-shaped bulges 20 can be stained with the lubricating oil, when the sliding bearing needs to be used in the axial direction, the convex strips 15 and the arc-shaped bulges 20 stained with the lubricating oil are retracted into the accommodating groove 14 by driving the pneumatic telescopic rod 19 to shrink by the small cylinder 16, at the moment, the lubricating oil stained on the convex strips 15 and the arc-shaped bulges 20 is squeezed at the top of the accommodating groove 14, because the convex strips 15 and the arc-shaped bulges 20 are already retracted into the accommodating groove 14, the bearing sleeve 6 can rotate between the upper bearing cover 3 and the lower bearing cover 5 and can slide in the axial direction, and in the process that the bearing sleeve 6 rotates between the upper bearing cover 3 and the lower bearing cover 5, the lubricating oil squeezed at the top of the accommodating groove 14 can be smeared on sliding gaps between the bearing sleeve 6 and the upper bearing cover 3 and the lower bearing cover 5 along with the rotation of the bearing sleeve 6, so that the lubricating oil is conveniently coated and the coating of the lubricating oil is more uniform;

when the invention is used, firstly, the whole sliding bearing is assembled, the bearing sleeve 6 is placed on the lower bearing cover 5, then the end cover 1 is covered on the bearing seat 7, after the end cover 1 is covered, the closing plates 21 are respectively inserted into two ends of two gaps 4 to close the gaps, the screw is inserted into the screw hole 2 and screwed into the butt joint hole 9 to fix the end cover 1 and the bearing seat 7, the stud is screwed into the stud from the stud hole 8 to fix the whole bearing seat 7, the shaft hole 17 of the bearing sleeve 6 is connected with the shaft which needs to be driven by the sliding bearing, then the oil injection one-way valve 13 is opened, the lubricating oil is injected into the oil cavity in the lower bearing cover 5, the lubricating oil overflows from the top of the sticking groove 11, because the two ends of the gap 4 are sealed, the lubricating oil permeates into the sliding gaps between the bearing sleeve 6 and the upper bearing cover 3 and the lower bearing cover 5 to play a role of lubricating, and the whole sliding bearing can be used after the whole sliding bearing is completed, the sliding bearing has two using states, the first radial sliding, the bearing sleeve 6 is rotated to a state that two containing grooves 14 are opposite to the gap 4, the small air cylinder 16 is started, the small air cylinder 16 is used for driving the pneumatic telescopic rod 19 to extend, so that the convex strip 15 is ejected out of the containing grooves 14, at the moment, the two convex strips 15 are both inserted into the gap 4, and the arc-shaped bulges 20 on the convex strips 15 are contacted with the steel balls 12 on the sticking groove 11, at the moment, the bearing sleeve 6 can only slide back and forth between the upper bearing cover 3 and the lower bearing cover 5 due to the ejection of the convex strips 15, the sliding is limited by the convex strips 15 and the sealing plate 21, so that the bearing sleeve 6 can not be separated from the upper bearing cover 3 and the lower bearing cover 5, because the convex strips 15 are inserted into the gap 4, and a row of the steel balls 12 is arranged in the gap, the steel balls 12 can rotate on the sticking groove 11 to take out lubricating oil from the inner oil cavity, therefore, in the process of radial sliding of the bearing sleeve 6, the convex strips 15 and the arc-shaped bulges 20 can be contaminated with lubricating oil, so that when the sliding bearing needs to be used axially, the convex strips 15 and the arc-shaped bulges 20 contaminated with the lubricating oil are retracted into the accommodating grooves 14 by driving the pneumatic telescopic rods 19 to retract by the small cylinders 16, at the moment, the lubricating oil contaminated on the convex strips 15 and the arc-shaped bulges 20 is squeezed at the tops of the accommodating grooves 14, the convex strips 15 and the arc-shaped bulges 20 are already retracted into the accommodating grooves 14, so that the bearing sleeve 6 can rotate between the upper bearing cover 3 and the lower bearing cover 5 and can perform axial sliding, and in the process of rotating between the upper bearing cover 3 and the lower bearing cover 5, the lubricating oil squeezed at the tops of the accommodating grooves 14 can be smeared on sliding gaps between the bearing sleeve 6 and the upper bearing cover 3 and the lower bearing cover 5 along with the rotation of the bearing sleeve 6, so that the lubricating oil can be coated more uniformly.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sliding bearing comprises an end cover (1), a bearing sleeve (6) and a bearing seat (7), and is characterized in that two screw holes (2) are formed in the top of the end cover (1), the end cover (1) is located at the top of the bearing seat (7), a stud hole (8) for fixing the bearing seat (7) is formed in each of two ends of the bearing seat (7), a lower bearing cover (5) located in the middle of the top of the bearing seat (7) is arranged on the bearing seat (7), an upper bearing cover (3) is arranged above the lower bearing cover (5), the upper bearing cover (3) is located at the bottom of the end cover (1), the upper bearing cover (3) and the lower bearing cover (5) are used in a matched mode, the bearing sleeve (6) is installed between the upper bearing cover (3) and the lower bearing cover (5), a shaft hole (17) is formed in the middle of the bearing sleeve (6), two gaps (4) are reserved between the upper bearing cover (3) and the lower bearing cover (5), and the two gaps (4) are located on two sides of the bearing sleeve (6) respectively;

an oil cavity in a U-shaped structure is arranged in the lower bearing cover (5), the tops of two ends of the lower bearing cover (5) are respectively provided with a bonding groove (11) connected with the oil cavity, a plurality of partitioned cavities which are uniformly distributed are arranged in the bonding groove (11), each partitioned cavity is internally connected with a rotatable steel ball (12) in a shaft mode, the bottom of each steel ball (12) is immersed in the oil cavity, the top of each steel ball (12) is exposed from the top of the bonding groove (11) and is level with the bottom plane of the gap (4), and an oil injection one-way valve (13) connected with the oil cavity is arranged on the side wall of the bottom of the lower bearing cover (5);

two symmetrical accommodating grooves (14) are formed in the outer wall of the bearing sleeve (6), a convex strip (15) is arranged in each of the two accommodating grooves (14), arc-shaped protrusions (20) with smooth outer walls are arranged at the tops of the two convex strips (15), the bottoms of the two convex strips (15) are connected with a seal (18) located in each accommodating groove (14), the bottom of each seal (18) is connected with two pneumatic telescopic rods (19), two mounting grooves communicated with the accommodating grooves (14) are formed in the side wall of the bearing sleeve (6), a small air cylinder (16) is embedded in each mounting groove, and the small air cylinder (16) is connected with the pneumatic telescopic rods (19) through pipelines;

and two ends of each gap (4) are provided with a sealing plate (21) for sealing the gap (4).

2. A plain bearing according to claim 1, wherein the width of the protruding strips (15) and the width of the arcuate projections (20) are adapted to the width of the receiving grooves (14), and the tops of the arcuate projections (20) are flush with the tops of the receiving grooves (14) after the protruding strips (15) are received in the receiving grooves (14).

3. A plain bearing according to claim 2, characterized in that both gaps (4) are provided with an abutment hole (9) for abutment with the screw hole (2), and that the sides of both abutment holes (9) facing away are provided with a recess (10) in the side wall of the bearing seat (7).