CN213744461U

CN213744461U - Knuckle bearing for rocker arm

Info

Publication number: CN213744461U
Application number: CN202022605726.1U
Authority: CN
Inventors: 何清华
Original assignee: Guangzhou Hongyue Machinery Manufacturing Co ltd
Current assignee: Guangzhou Hongyue Machinery Manufacturing Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-07-20
Anticipated expiration: 2030-11-11

Abstract

The utility model relates to a joint bearing for rocking arm, its technical scheme main points are: the rocker arm sealing device comprises an outer ring, an inner ring, a first sealing gasket and a second sealing gasket which are fixedly connected with the rocker arm; the outer ring is sleeved on the inner ring; the first sealing gasket is fixedly connected with one side of the inner ring; the second sealing gasket is fixedly connected with the other side of the inner ring; the outer ring is provided with a conveying hole for conveying lubricant to a gap between the outer ring and the inner ring; the self-lubricating sealing device has the self-lubricating effect and simultaneously has the good sealing performance.

Description

Knuckle bearing for rocker arm

Technical Field

The utility model relates to a joint bearing technical field, more specifically say, it relates to a joint bearing for rocking arm.

Background

Rocker arms have found numerous applications in a variety of mechanical devices, and knuckle bearings are often provided on rocker arms. The joint bearing is a spherical sliding bearing which can rotate and swing at any angle during movement and is a basic part in a swing mechanism.

In addition, the knuckle bearing generally requires the characteristics of large load capacity, impact resistance, wear resistance and self-aligning, but the knuckle bearing often has poor self-lubricating effect in the operation process because the lubricant in the self-lubricating function easily flows out, and the bearing is blocked due to overlarge axial friction force, so that the research on the knuckle bearing for the rocker arm, which has the self-lubricating effect and good sealing performance, is very necessary.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a joint bearing for rocking arm still has the functional advantage that sealing performance is good when having the self-lubricating effect.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a spherical plain bearing for a rocker arm, comprising: the outer ring, the inner ring, the first sealing gasket and the second sealing gasket are fixedly connected with the rocker arm; the outer ring is sleeved on the inner ring; the first sealing gasket is fixedly connected with one side of the inner ring; the second sealing gasket is fixedly connected with the other side of the inner ring; and the outer ring is provided with a conveying hole for conveying the lubricant to a gap between the outer ring and the inner ring.

Optionally, the inner ring includes: the main ring, the first connecting part and the second connecting part; the inner surface of the outer ring is sleeved on the outer surface of the main ring; one side of the main ring is fixedly connected with the first connecting part, and the other side of the main ring is fixedly connected with the second connecting part; the first connecting part is fixedly connected with the first sealing gasket; the second connecting part is fixedly connected with the second sealing gasket.

Optionally, a first connection hole is arranged on the first sealing pad; the inner wall of first connecting hole and the outer wall fixed connection of first connecting portion.

Optionally, a second connecting hole is formed in the second sealing gasket; and the inner wall of the second connecting hole is fixedly connected with the outer wall of the second connecting part.

Optionally, the first sealing gasket is provided with a plurality of first fixing holes for fixedly connecting with the rocker arm.

Optionally, the second sealing gasket is provided with a plurality of second fixing holes for fixedly connecting with the rocker arm.

To sum up, the utility model discloses following beneficial effect has:

1. the self-lubricating joint bearing has a self-lubricating effect and a good sealing effect on a lubricant, so that the lubricant is difficult to flow out of the joint bearing;

2. through the arrangement of the first connecting hole and the second connecting hole, the sealing effect of the first sealing gasket and the second sealing gasket on the gap between the outer ring and the inner ring is better under the condition that the swinging of the inner ring is not influenced;

3. through the setting of first fixed orifices and second fixed orifices for first sealed the pad with the second seal all with be connected more fastening of rocking arm, further improved the sealed effect of the sealed pad of first sealed pad and second.

Drawings

FIG. 1 is an assembly view of the present invention;

fig. 2 is a schematic diagram of the internal structure of the present invention.

In the figure: 1. a rocker arm; 2. an outer ring; 3. an inner ring; 31. a main ring; 32. a first connection portion; 4. a first gasket; 5. a delivery orifice; 6. a first fixing hole.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and therefore should not be construed as limiting the present invention.

The present invention will be described in detail with reference to the accompanying drawings and examples.

The utility model provides a joint bearing for rocking arm, as shown in figure 1 and figure 2, include: the rocker arm comprises an outer ring 2, an inner ring 3, a first sealing gasket 4 and a second sealing gasket which are fixedly connected with the rocker arm 1; the outer ring 2 is sleeved on the inner ring 3; the first sealing gasket 4 is fixedly connected with one side of the inner ring 3; the second sealing gasket is fixedly connected with the other side of the inner ring 3; the first sealing gasket 4 completely covers one side of the gap between the outer ring 2 and the inner ring 3, and the second sealing gasket completely covers the other side of the gap between the outer ring 2 and the inner ring 3; the outer ring 2 is provided with a conveying hole 5 for conveying lubricant to a gap between the outer ring 2 and the inner ring 3; the conveying holes 5 are through holes, and the conveying holes 5 are arranged along the radial direction of the outer ring 2, so that the lubricant can conveniently enter the gap between the outer ring 2 and the inner ring 3 through the conveying holes 5.

The number of delivery holes 5 is two in the present application, and the number of delivery holes 5 may be one, three or more in other embodiments; the rocker arm 1 is provided with a mounting hole and at least one grease nipple; the mounting hole is a through hole; the inner wall of the mounting hole is fixedly connected with the outer surface of the outer ring 2; the number of grease nipples is two in the present application; one of the grease nipples is communicated with one of the delivery holes 5, and the other grease nipple is communicated with the other delivery hole 5; the grease nozzle is communicated with the conveying hole 5, so that the lubricant can be conveniently conveyed into the conveying hole 5 through the grease nozzle, and then the lubricant enters a gap between the outer ring 2 and the inner ring 3 from the conveying hole 5, and the abrasion of the outer ring 2 and the inner ring 3 is reduced; through the setting of first sealed 4 and the sealed pad of second of filling up, played sealed effect to this device, reduced the possibility that emollient flowed for emollient is better to joint bearing's lubricated effect, has improved joint bearing's life.

Further, as shown in fig. 1 and 2, the inner ring 3 includes: a main ring 31, a first connecting portion 32, and a second connecting portion; the inner surface of the outer ring 2 is sleeved on the outer surface of the main ring 31; one side of the main ring 31 is fixedly connected with the first connecting part 32, and the other side is fixedly connected with the second connecting part; the first connecting part 32 is fixedly connected with the first sealing gasket 4; the second connecting part is fixedly connected with the second sealing gasket.

The inner surface of the outer ring 2 is sleeved on the outer surface of the main ring 31, so that the joint bearing can rotate and swing at any angle; through the arrangement of the first connecting part 32 and the second connecting part, the joint bearing can be fixedly connected with the first sealing gasket 4 and the second sealing gasket under the condition that the joint bearing does not influence the rotation and the swing along any angle.

The first sealing gasket 4 and the second sealing gasket are made of rubber in the application, and in other embodiments, the first sealing gasket 4 and the second sealing gasket can be made of elastic metal sheets or other materials with elasticity in the prior art; under the condition that the joint bearing rotationally swings along any angle, the first sealing gasket 4 and the second sealing gasket can generate corresponding elastic deformation according to the swing angle of the inner ring 3, so that the first sealing gasket 4 and the second sealing gasket can adapt to the rotational swing of the inner ring 3.

Further, as shown in fig. 1, a first connection hole is formed on the first sealing gasket 4; the inner wall of the first connecting hole is fixedly connected with the outer wall of the first connecting part 32; the first connecting portion 32 is annular, and the first connecting portion 32 and the inner race 3 are coaxial. The first connecting portion 32 and one side of the inner ring 3 are seamlessly connected in this application; the first connection hole is matched with the first connection part 32; through the setting in first sealed hole, the fixed connection of the first sealed 4 of filling up and first connecting portion 32 of being convenient for, the first sealed 4 of filling up can block the emollient of inner circle 3 and outer lane 2 in the clearance and flow out from one side of joint bearing, and sealed effect is better.

Further, a second connecting hole is formed in the second sealing gasket; the inner wall of the second connecting hole is fixedly connected with the outer wall of the second connecting part; the second connecting portion is annular and coaxial with the inner ring 3. The second connecting part and the other side of the inner ring 3 are seamlessly connected in the present application; the second connecting hole is matched with the second connecting part; through the setting of second sealed hole, the fixed connection of the sealed pad of second and second connecting portion of being convenient for, the sealed pad of second can block the emollient of inner circle 3 and outer lane 2 in the clearance and flow from joint bearing's opposite side, has further strengthened the sealed effect of this device.

Further, as shown in fig. 1, a plurality of first fixing holes 6 for fixedly connecting with the rocker arm 1 are formed in the first sealing gasket 4; the number of the first fixing holes 6 is four in the present application, and the number of the first fixing holes 6 may be two, three or more in other embodiments; four first fixed orificess 6 evenly distributed are on first sealed 4 of filling up, install the back in the mounting hole at joint bearing, can realize through first fasteners such as first bolt or first bolt that first sealed 4 of filling up is connected with rocking arm 1, and the first sealed 4 of filling up of being convenient for is fixed with rocking arm 1 for 1 surface of rocking arm is hugged closely to first sealed 4 of filling up, makes the sealed effect of first sealed 4 of filling up better.

Furthermore, a plurality of second fixing holes for fixedly connecting with the rocker arm 1 are formed in the second sealing gasket; the number of the second fixing holes is four in the present application, and the number of the second fixing holes may be two, three or more in other embodiments; the number of second fixing holes does not necessarily correspond to the number of first fixing holes 6; four second fixed orificess evenly distributed are on the second sealing washer, install back in the mounting hole at joint bearing, can realize through second fasteners such as second bolt or second bolt that the second is sealed to fill up being connected with rocking arm 1, and the second of being convenient for fills up fixed with rocking arm 1 for the second is sealed to fill up and is hugged closely rocking arm 1 surface, makes the sealed effect of filling up of second better.

The oscillating bearing for the rocker arm can input lubricant into the gap between the outer ring 2 and the inner ring 3 through the conveying hole 5, so that the lubricating effect of the oscillating bearing is better, the abrasion of the oscillating bearing in the operation process is reduced, and the service life of the oscillating bearing is prolonged; through the arrangement of the first sealing gasket 4 and the second sealing gasket, the sealing effect of the joint bearing on the lubricant is better, the possibility of the lubricant flowing out is reduced, and the frequency of delivering the lubricant into the delivery hole 5 is reduced.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A spherical plain bearing for a rocker arm, comprising: the outer ring, the inner ring, the first sealing gasket and the second sealing gasket are fixedly connected with the rocker arm; the outer ring is sleeved on the inner ring; the first sealing gasket is fixedly connected with one side of the inner ring; the second sealing gasket is fixedly connected with the other side of the inner ring; and the outer ring is provided with a conveying hole for conveying the lubricant to a gap between the outer ring and the inner ring.

2. The spherical plain bearing for a rocker arm of claim 1 wherein said inner race comprises: the main ring, the first connecting part and the second connecting part; the inner surface of the outer ring is sleeved on the outer surface of the main ring; one side of the main ring is fixedly connected with the first connecting part, and the other side of the main ring is fixedly connected with the second connecting part; the first connecting part is fixedly connected with the first sealing gasket; the second connecting part is fixedly connected with the second sealing gasket.

3. The spherical plain bearing for a rocker arm of claim 2 wherein the first seal pad has a first connection hole disposed therein; the inner wall of first connecting hole and the outer wall fixed connection of first connecting portion.

4. The spherical plain bearing for a rocker arm according to claim 2, wherein a second connecting hole is provided on the second seal gasket; and the inner wall of the second connecting hole is fixedly connected with the outer wall of the second connecting part.

5. The spherical plain bearing for a rocker arm according to any one of claims 1 to 4, wherein the first seal has a plurality of first fixing holes fixedly connected to the rocker arm.

6. The oscillating bearing for a rocker arm according to any one of claims 1 to 4, wherein the second gasket is provided with a plurality of second fixing holes fixedly connected with the rocker arm.