CN110886768A

CN110886768A - Rolling type bearing

Info

Publication number: CN110886768A
Application number: CN201911338843.1A
Authority: CN
Inventors: 郭昊卿
Original assignee: Henan Wei Chuang Bearing Precision Technology Co Ltd
Current assignee: Henan Wei Chuang Bearing Precision Technology Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-03-17

Abstract

The invention provides a rolling bearing, which comprises a bearing outer ring, a bearing inner ring, balls and a retainer, wherein the rolling balls are used for driving a valve ball to move, when the highest point of each ball is in contact with the valve ball, the valve ball drives a valve rod and a valve core to move upwards, a flow guide hole is communicated with an oil outlet, lubricating oil flows through an inner oil ring, an oil storage bin and the oil outlet in sequence and then is sprinkled on the outer wall of the ball, the lubricating oil is further brought into the retainer along with the rolling of the balls, each ball is lubricated along with the rotation of the balls, the lubricating effect is good, and when the highest point of the ball passes, the valve rod and the valve core reset under the driving of a spring, the flow guide hole is not communicated with the oil outlet, the lubricating oil is prevented from being sprinkled on the outer wall of the retainer, and the condition of lubricating oil waste can be effectively prevented.

Description

Rolling type bearing

Technical Field

The invention belongs to the technical field of bearings, and particularly relates to a rolling type bearing.

Background

The bearing is an important part in the modern mechanical equipment. The part is used for determining the relative movement position of the rotating shaft and other parts and has the supporting or guiding function. Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load of equipment in the transmission process. The ball bearing is one kind of rolling bearing, and has spherical alloy steel ball installed between the inner ring and the outer ring to reduce friction force and raise mechanical power transmission efficiency. Common devices that use ball bearings are: the motor transmission shaft, the transmission part of a light (civil) motor vehicle, machining equipment, a mechanical transmission assembly of a factory production line and the like are mainly used in low-load mechanical transmission equipment.

In order to reduce the friction force between the ball bearing of the ball and the ball bearing of the inner ring and improve the mechanical power, the ball bearing is lubricated regularly, the ball bearing is lubricated mainly by oiling at two sides of the ball bearing at present, then the ball rotating at high speed brings lubricating oil into the raceway to lubricate the raceway, the lubricating effect is poor, only part of the lubricating oil is brought into the raceway, the lubricating oil is wasted, and the heat dissipation of the bearing is not facilitated.

Disclosure of Invention

The invention aims to provide a rolling bearing which has good lubricating effect and can not cause the waste of lubricating oil.

In order to achieve the purpose, the invention adopts the technical scheme that: a rolling bearing comprises a bearing outer ring, a bearing inner ring, balls and a retainer, wherein the balls are arranged between the bearing outer ring and the bearing inner ring and are separated by the retainer, a roller path matched with the balls is circumferentially arranged on the inner side wall of the bearing outer ring, an inner oil ring and an oil inlet hole penetrating through the end face of the bearing outer ring are also arranged inside the bearing outer ring, one end of the oil inlet hole is communicated with the inner oil ring, one end of the inner oil ring, far away from the oil inlet hole, is circumferentially provided with a plurality of oil storage bins communicated with the inner oil ring, one side of each oil storage bin, close to the roller path, is centrally provided with an oil outlet hole communicated with the roller path, a valve core is arranged in the oil storage bins in a sliding manner, a valve rod is arranged inside the valve core in a penetrating manner, the outer wall of the valve rod is fixedly connected with the valve core, a plurality of flow guide holes are circumferentially arranged on the valve, the other end outside cover of valve rod is equipped with the spring and this spring crimping is in oil storage storehouse, and after the peak of ball and the ball contact, the valve ball drove valve rod and case and shifts up, switches on between water conservancy diversion hole and the oil outlet.

Furthermore, the inner side of the oil storage bin is provided with a limiting block, and the spring is pressed between the limiting block and the valve core.

Further, the shape of the valve ball is spherical or ellipsoidal.

Furthermore, the oil storage bin is cylindrical, and the diameter of the valve core is the same as that of the bottom surface of the oil storage bin.

Furthermore, the retainer comprises a bottom plate and a plurality of clamping plates arranged on the bottom plate at intervals along the circumferential direction, two side walls of each clamping plate are inwards recessed to form pocket grooves used for limiting balls, an open pocket hole is formed between any two adjacent clamping plates and the bottom plate, and the tops of the plurality of clamping plates are detachably connected with a compression ring; the inner wall of pocket hole is for along the face of cylinder of bottom plate radial extension, offers the oil storage recess that is used for storing lubricating oil along circumference on this face of cylinder, logical oil groove has been offered along the circumference of bottom plate in the inside of grip block, communicates through logical oil groove between two adjacent oil storage recesses.

Furthermore, the clamping plate comprises an upper clamping plate and a lower clamping plate, and the upper clamping plate is hinged with the lower clamping plate through a pin shaft.

Furthermore, each clamping plate is provided with a clamping groove at the top for clamping the compression ring.

Furthermore, a rubber sheet is arranged on the inner wall of the clamping groove.

Furthermore, the pressing ring and the bottom plate are both inwards recessed at one side close to the balls to form a pressing groove matched with the balls.

Furthermore, the bottom plate and the plurality of clamping plates are integrally arranged.

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

1. the valve ball is driven to move by utilizing the rolling balls, when the highest point of each ball is contacted with the valve ball, the valve ball drives the valve rod and the valve core to move upwards, the flow guide hole is communicated with the oil outlet hole, lubricating oil flows through the inner oil ring, the oil storage bin and the oil outlet hole in sequence and then is sprinkled on the outer wall of the ball, the lubricating oil is further brought into the retainer along with the rolling of the ball, each ball can be lubricated along with the rotation of the ball, the lubricating effect is good, and when the highest point of the ball passes, the valve rod and the valve core reset under the driving of the spring, the flow guide hole is not communicated with the oil outlet hole any more, the lubricating oil is prevented from being sprinkled on the outer wall of the retainer, so that the condition of lubricating oil waste can be effectively prevented;

2. according to the invention, the balls are fixed in the pockets of the retainer through the compression rings arranged at the tops of the plurality of clamping plates, when a single ball on the retainer is seriously worn and needs to be replaced, the compression rings are detached and the upper clamping plate is rotated to replace the worn ball, so that the replacement mode is simple;

3. according to the invention, the inner wall of the pocket is provided with the oil storage groove for storing lubricating oil, so that the time of the lubricating oil in the retainer is prolonged, the balls fixed in the retainer can realize directional rolling, and the friction between the balls and the pocket surface can be reduced;

4. according to the invention, the oil through grooves are formed in the clamping plate along the circumferential direction of the bottom plate, two adjacent oil storage grooves are communicated through the oil through grooves, and lubricating oil is transmitted to each ball through the oil through grooves by the rotation of the bearing, so that the situation that local lubrication is not in place is prevented.

Drawings

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

FIG. 2 is a cross-sectional view of the outer ring of the bearing of the present invention;

FIG. 3 is an enlarged partial schematic view at A in FIG. 2;

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

FIG. 5 is a schematic view showing the positional relationship of the pressing ring, the upper clamping plate, the lower clamping plate and the bottom plate according to the present invention;

the labels in the figure are: 1. the bottom plate, 2, the grip block, 201, the punch holder, 202, the lower plate, 203, the round pin axle, 3, the pocket, 301, the oil storage recess, 302, logical oil groove, 4, the clamping ring, 401, the draw-in groove, 402, the indent, 5, interior oil ring, 6, the inlet port, 7, the oil storage storehouse, 8, the oil outlet, 9, the case, 901, the valve rod, 902, the spring, 903, the stopper, 904, the water conservancy diversion hole, 10, the valve ball, 11, bearing outer loop, 12, the bearing inner loop, 13, the ball, 14, the holder, 15, the raceway.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

A rolling type bearing, as shown in figure 1, comprises a bearing outer ring 11, a bearing inner ring 12, balls 13 and a retainer 14, wherein the balls 13 are arranged between the bearing outer ring 11 and the bearing inner ring 12 and are separated by the retainer 14, a roller path 15 matched with the balls 13 is circumferentially arranged on the inner side wall of the bearing outer ring 11, as shown in figures 2 and 3, an inner oil ring 5 and an oil inlet hole 6 penetrating through the end surface of the bearing outer ring 11 are further arranged inside the bearing outer ring 11, one end of the oil inlet hole 6 is communicated with the inner oil ring 5, one end of the inner oil ring 5 far away from the oil inlet hole 6 is circumferentially provided with a plurality of oil storage bins 7 communicated with the inner oil ring 5, one side of the oil storage bins 7 close to the roller path 15 is provided with an oil outlet hole 8 communicated with the roller path 15 at the central position, a valve core 9 is slidably arranged in the oil storage bins 7, a valve rod 901 penetrates through the inner side of the valve core 9, and the outer, a plurality of flow guide holes 904 are circumferentially arranged on the valve core 9, one end of the valve rod 901 penetrates out of the oil storage bin 7 and the oil outlet 8 and then is connected with the valve ball 10, a spring 902 is sleeved on the outer side of the other end of the valve rod 901 and is in press-connection with the oil storage bin 7, when the highest point of the ball 13 is in contact with the valve ball 10, the valve ball 10 drives the valve rod 901 and the valve core 9 to move upwards, and the flow guide holes 904 are communicated with the oil outlet 8.

The rolling balls 13 are utilized to drive the valve ball 10 to move, when the highest point of each ball 13 is in contact with the valve ball 10, the valve ball 10 drives the valve rod 901 and the valve core 9 to move upwards, the flow guide holes 904 are communicated with the oil outlet hole 8, lubricating oil flows through the inner oil ring 5, the oil storage bin 7 and the oil outlet hole 8 in sequence and then is sprinkled on the outer wall of the ball 13, the lubricating oil is further brought into the retainer 14 along with the rolling of the ball 13, each ball 13 is lubricated along with the rotation of the ball 13, the lubricating effect is good, and when the highest point of the ball passes, the valve rod 901 and the valve core 9 are reset under the driving of the spring 902, the flow guide holes 904 are not communicated with the oil outlet hole 8 any more, the lubricating oil is prevented from being sprinkled on the outer wall of the retainer 14, and the condition of lubricating oil waste can be effectively prevented;

further optimize this scheme, for the stability of lift system, prevent that valve rod 901 from taking place the dislocation at the in-process of motion, can be provided with stopper 903 in the inboard of oil storage storehouse 7, spring 902 crimping is between stopper 903 and case 9, in order to reach the best result of use of course, also can replace stopper 903 for spacing round platform, nevertheless need set up the draining port on the spacing round platform, make lubricating oil can follow interior oil ring 5 smoothly and get into oil storage storehouse 7.

Further optimizing the scheme, in order to improve the sensitivity of the system, the valve ball 10 is spherical or ellipsoidal.

Further optimize this scheme, oil storage bin 7 is cylindricly, the diameter of case 9 is the same with the bottom surface diameter in oil storage bin 7.

As shown in fig. 4 and 5, the holder 14 includes a bottom plate 1 and a plurality of clamping plates 2 arranged on the bottom plate at intervals along the circumferential direction, the holder 14 is made of a plastic material, the bottom plate 1 and the plurality of clamping plates 2 are integrally arranged, two side walls of each clamping plate 2 are recessed inwards to form pocket grooves for limiting balls, an open pocket 3 is formed between any two adjacent clamping plates 2 and the bottom plate 1, and the tops of the plurality of clamping plates 2 are detachably connected with a compression ring 4; the clamping plate 2 comprises an upper clamping plate 201 and a lower clamping plate 202, the upper clamping plate 201 is hinged with the lower clamping plate 202 through a pin shaft 203, in order to achieve the best using effect, the pin shaft 203 is arranged in the middle of the clamping plate 2, namely the upper clamping plate 201 and the lower clamping plate 202 are symmetrically arranged on two sides of the pin shaft 203, after the pressing ring 4 is dismounted, the upper clamping plate 201 on two sides of a single ball can rotate around the outer side of the ball, so that the ball can be conveniently taken out or put in, when the single ball on the retainer is seriously worn and needs to be replaced, the pressing ring is dismounted and the worn ball can be replaced by rotating the upper clamping plate, and the replacing mode is simple;

the inner wall of the pocket 3 is a cylindrical surface extending along the radial direction of the bottom plate 1, an oil storage groove 301 for storing lubricating oil is formed in the cylindrical surface along the circumferential direction, the time of the lubricating oil in the retainer is prolonged due to the design of the oil storage groove 301, and not only can the balls fixed in the retainer realize directional rolling, but also the friction between the balls and the pocket surface can be reduced; oil groove 302 has been seted up along bottom plate 1's circumference to the inside of grip block 2, is linked together through oil groove 302 between two adjacent oil storage recesses 301, and rotation through the bearing transmits lubricating oil to every ball through oil groove, prevents that the condition that local lubrication is not in place from appearing.

Further optimize this scheme, each the draw-in groove 401 that is used for the card to establish clamping ring 4 is all offered at the top of grip block 2, and clamping ring 4 can directly be blocked and establish in draw-in groove 401, of course for letting the holder have fine stability, also can pass through bolt or fix with screw in the inboard of draw-in groove 401 with clamping ring 4.

Further optimize this scheme, be provided with the sheet rubber on the inner wall of draw-in groove 401 and not draw in the picture.

Further optimize this scheme, in order to promote the stability of ball at the rotation in-process, clamping ring 4 and bottom plate 1 all inwards cave in the one side that is close to the ball and form with ball assorted indent 402.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a rolling type bearing, includes bearing outer ring (11), bearing inner ring (12), ball (13) and holder (14), and ball (13) set up between bearing outer ring (11) and bearing inner ring (12) and separate through holder (14), and circumference is equipped with on the inside wall of bearing outer ring (11) and ball (13) complex raceway (15), its characterized in that: the bearing outer ring (11) is internally provided with an inner oil ring (5) and an oil inlet hole (6) penetrating through the end face of the bearing outer ring (11), wherein one end of the oil inlet hole (6) is communicated with the inner oil ring (5), one end of the inner oil ring (5) far away from the oil inlet hole (6) is circumferentially provided with a plurality of oil storage bins (7) communicated with the inner oil ring (5), one side of the oil storage bin (7) close to the raceway (15) is provided with an oil outlet hole (8) communicated with the raceway (15), the oil storage bin (7) is internally provided with a valve core (9) in a sliding manner, the inner side of the valve core (9) is provided with a valve rod (901) in a penetrating manner, the outer wall of the valve rod (901) is fixedly connected with the valve core (9), the valve core (9) is circumferentially provided with a plurality of flow guide holes (904), one end of the valve rod (901) penetrates out of the oil storage bin (7) and the oil outlet hole, the spring (902) is sleeved on the outer side of the other end of the valve rod (901) and the spring (902) is in compression joint in the oil storage bin (7), when the highest point of the ball (13) is in contact with the valve ball (10), the valve ball (10) drives the valve rod (901) and the valve core (9) to move upwards, and the flow guide hole (904) is communicated with the oil outlet hole (8).

2. A rolling bearing according to claim 1, wherein: the inner side of the oil storage bin (7) is provided with a limiting block (903), and the spring (902) is pressed between the limiting block (903) and the valve core (9).

3. A rolling bearing according to claim 1, wherein: the valve ball (10) is spherical or ellipsoidal.

4. A rolling bearing according to claim 1, wherein: the oil storage bin (7) is cylindrical, and the diameter of the valve core (9) is the same as that of the bottom surface of the oil storage bin (7).

5. A rolling bearing according to claim 1, wherein: the retainer (14) comprises a bottom plate (1) and a plurality of clamping plates (2) arranged on the bottom plate at intervals along the circumferential direction, two side walls of each clamping plate (2) are inwards recessed to form pocket grooves used for limiting balls (13), an open pocket hole (3) is formed between any two adjacent clamping plates (2) and the bottom plate (1), and the tops of the clamping plates (2) are detachably connected with a compression ring (4) together;

the inner wall of pocket (3) is for the face of cylinder along bottom plate (1) radial extension, offers oil storage recess (301) that are used for storing lubricating oil along circumference on this face of cylinder, logical oil groove (302) have been offered along the circumference of bottom plate (1) to the inside of grip block (2), are linked together through leading to oil groove (302) between two adjacent oil storage recesses (301).

6. A rolling bearing according to claim 5, wherein: the clamping plate (2) comprises an upper clamping plate (201) and a lower clamping plate (202), and the upper clamping plate (201) is hinged to the lower clamping plate (202) through a pin shaft (203).

7. A rolling bearing according to claim 6, wherein: each clamping plate (2) is provided with a clamping groove (401) at the top for clamping the pressure ring (4).

8. A rolling bearing according to claim 7, wherein: and a rubber sheet is arranged on the inner wall of the clamping groove (401).

9. A rolling bearing according to claim 5, wherein: the pressing ring (4) and the bottom plate (1) are both inwards recessed at one side close to the balls (13) to form a pressing groove (402) matched with the balls (13).

10. A rolling bearing according to claim 5, wherein: the bottom plate (1) and the plurality of clamping plates (2) are integrally arranged.