Knuckle bearing with high sealing performance

Abstract

The utility model relates to a knuckle bearing with high sealing performance in the technical field of knuckle bearings, which comprises an outer ring, an inner spherical ring is arranged on the inner side of the outer ring, and sealing components are arranged on the left side and the right side of the outer ring; and the sealing assembly comprises an internal thread ring, the internal thread ring is fixedly connected to the outer side of the outer ring, the inner side of the internal thread ring is in threaded connection with an external thread ring, and the sides, away from each other, of the two external thread rings are fixedly connected with rubber rings. According to the utility model, the internal thread ring and the external thread ring are arranged, so that the rubber ring for sealing and dust prevention can be conveniently mounted; the joint of the outer ring and the inner spherical ring can be protected during use by arranging the arc-shaped rubber ring, so that dust is prevented from entering the joint, the inner spherical ring is convenient to rotate in the direction by arranging the annularly-distributed gaps, and the phenomenon that the interior of the joint bearing is abraded is prevented by reducing dust entering the interior of the joint bearing, so that the service life of the joint bearing is prolonged, and the service life of the joint bearing is prolonged. And the service life of the knuckle bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of spherical bearings, in particular to a spherical bearing with high sealing performance. Background Art

[0002] Spherical bearing is a spherical sliding bearing, whose sliding contact surface is an inner sphere and an outer sphere. It can rotate and swing at any angle during movement. It is made by a variety of special processing methods such as surface phosphating, blasting, inlaying, spraying, etc. Spherical bearing has the characteristics of large load capacity, impact resistance, corrosion resistance, wear resistance, self-aligning, good lubrication, etc. With the long-term use of spherical bearing, the inside of the bearing is prone to wear.

[0003] Most of the existing spherical joint bearings are composed of an inner spherical surface and an outer spherical surface. After long-term use, dust and other debris can easily enter the spherical joint bearings that lack a sealing structure. The dust that enters the spherical joint bearing can easily cause wear at the connection between the inner spherical surface and the outer spherical surface, affecting the service life of the spherical joint bearing. For this reason, we propose a spherical joint bearing with high sealing performance. Utility Model Content

[0004] In view of the above problems, the utility model provides a highly sealed spherical bearing, which can protect the connection between the outer ring and the inner spherical ring to prevent the entry of dust. By setting a ring-shaped gap, the direction of rotation of the inner spherical ring is facilitated, and the entry of dust into the interior of the spherical bearing is reduced, thereby preventing wear inside the spherical bearing.

[0005] The technical solution of the utility model is: a high-sealing spherical bearing, comprising an outer ring, an inner spherical ring is arranged inside the outer ring, and sealing components are arranged on both sides of the outer ring;

[0006] The sealing assembly comprises an internal threaded ring, which is fixedly connected to the outside of an outer ring, an external threaded ring is threadedly connected to the inner side of the internal threaded ring, and rubber rings are fixedly connected to the sides of the two external threaded rings that are away from each other.

[0007] In a further technical solution, rectangular grooves are provided on both left and right sides of the outer ring, and a clamping block is slidably connected to the inner side of the rectangular groove.

[0008] In a further technical solution, a spring is fixedly connected to the inner side of the rectangular groove, and the spring is fixedly connected to the outer side of the clamping block.

[0009] In a further technical solution, the shape of the rubber ring is funnel-shaped, and the inner sides of the two rubber rings away from one end are in contact with the outer side of the inner spherical ring.

[0010] In a further technical solution, a side of the clamping block away from the spring is arranged as an inclined surface, and a side of the external threaded ring away from the rubber ring is provided with a clamping groove.

[0011] In a further technical solution, a gap distributed in an annular shape is formed on a side of the rubber ring away from the external threaded ring.

[0012] In a further technical solution, the rectangular grooves are distributed in a ring shape on the outside of the outer ring, and the clamping grooves are distributed in a ring shape on the outside of the external thread ring.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model provides an arc-shaped rubber ring to protect the connection between the outer ring and the inner spherical ring during use, thereby preventing the entry of dust. By providing annular gaps, the direction of rotation of the inner spherical ring is facilitated, and the entry of dust into the joint bearing is reduced, thereby preventing the joint bearing from being worn and the service life of the joint bearing is increased.

[0015] 2. The utility model facilitates the installation of the rubber ring used for sealing and dustproofing by arranging an internal thread ring and an external thread ring. The installation of the external thread ring will not be affected by the action of the outer inclined surface of the clamping block and the spring. However, after installation, the clamping block enters the corresponding clamping groove to prevent the external thread ring from reversing, thereby ensuring the stability of the installation of the rubber ring and continuously protecting the joint bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the right side view of the outer ring of an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the external threaded ring of the embodiment of the utility model from the left side;

[0020] Figure 5 It is a partial structural schematic diagram of the card block of an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Outer ring; 2. Sealing assembly; 201. Internal threaded ring; 202. Rectangular groove; 203. Clamping groove; 204. External threaded ring; 205. Rubber ring; 206. Gap; 207. Spring; 208. Clamping block; 3. Inner spherical ring. DETAILED DESCRIPTION

[0023] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0024] Example:

[0025] like Figure 1-Figure 5 As shown, a high-sealing spherical bearing comprises an outer ring 1, an inner spherical ring 3 is arranged inside the outer ring 1, and sealing components 2 are arranged on both sides of the outer ring 1;

[0026] The sealing assembly 2 comprises an internal threaded ring 201 , which is fixedly connected to the outside of the outer ring 1 , and an external threaded ring 204 is threadedly connected to the inner side of the internal threaded ring 201 , and rubber rings 205 are fixedly connected to the two external threaded rings 204 on the sides away from each other.

[0027] The working principle of the above technical solution is as follows:

[0028] When installing the spherical bearing, align the external threaded ring 204 with the inside of the internal threaded ring 201 and rotate it until it cannot rotate anymore. At this time, the installation of the rubber ring 205 is completed. Under the action of the rubber ring 205, the spherical bearing is protected from both sides to ensure the sealing of the connection between the outer ring 1 and the inner spherical ring 3, so as to prevent dust from entering.

[0029] In another embodiment, if Figure 3 As shown, rectangular grooves 202 are provided on both sides of the outer ring 1, and a clamping block 208 is slidably connected to the inner side of the rectangular groove 202.

[0030] The rectangular groove 202 facilitates the installation of the spring 207 and the block 208. The block 208 is slidably connected to the inner side of the rectangular groove 202. When the external threaded ring 204 rotates, the block 208 can be pressed into the rectangular groove 202. When the block 208 and the slot 203 are in the same plane, the block 208 enters the slot 203 under the action of the spring 207.

[0031] In another embodiment, if Figure 5 As shown, a spring 207 is fixedly connected to the inner side of the rectangular groove 202 , and the spring 207 is fixedly connected to the outer side of the clamping block 208 .

[0032] When the external threaded ring 204 is installed conveniently under the action of the spring 207, the block 208 is pressed into the rectangular groove 202. When the block 208 and the groove 203 are in the same plane, the block 208 enters the groove 203 under the action of the spring 207.

[0033] In another embodiment, if Figure 1 and Figure 4As shown, the shape of the rubber ring 205 is funnel-shaped, and the inner sides of the two rubber rings 205 away from one end are in contact with the outer side of the inner spherical ring 3.

[0034] The funnel-shaped arrangement facilitates the side with a smaller diameter to contact the outer side of the inner spherical ring 3 , thereby protecting the connection between the outer ring 1 and the inner spherical ring 3 .

[0035] In another embodiment, if Figure 4 and Figure 5 As shown, the side of the clamping block 208 away from the spring 207 is set as an inclined surface, and the side of the external thread ring 204 away from the rubber ring 205 is provided with a clamping groove 203.

[0036] The rotation of the inclined surface does not affect the rotation of the external thread ring 204 when it is installed. After the clamping block 208 enters the clamping groove 203, it cannot rotate in the opposite direction.

[0037] In another embodiment, if Figure 4 As shown, a gap 206 distributed in an annular shape is formed on the side of the rubber ring 205 away from the external thread ring 204 .

[0038] The gap 206 can facilitate the rotation of the inner spherical ring 3 in different directions, thereby preventing the annular sealing ring from affecting the rotation of the inner spherical ring 3 .

[0039] In another embodiment, if Figure 3 and Figure 4 As shown, the rectangular grooves 202 are distributed in an annular shape on the outside of the outer ring 1 , and the clamping grooves 203 are distributed in an annular shape on the outside of the external thread ring 204 .

[0040] The rectangular grooves 202 and the clamping grooves 203 are both arranged in a ring-shaped distribution, so that the clamping blocks 208 arranged thereon can enter the corresponding clamping grooves 203 when the external thread ring 204 rotates.

[0041] The above embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A spherical plain bearing with high sealing performance, comprising an outer ring (1), characterized in that: An inner spherical ring (3) is arranged inside the outer ring (1), and sealing components (2) are arranged on both left and right sides of the outer ring (1); The sealing assembly (2) comprises an internal threaded ring (201), wherein the internal threaded ring (201) is fixedly connected to the outside of the outer ring (1), the inner side of the internal threaded ring (201) is threadedly connected to an external threaded ring (204), and the two external threaded rings (204) are fixedly connected to a rubber ring (205) on the side away from each other.

2. A highly sealed spherical plain bearing according to claim 1, characterized in that: The outer ring (1) is provided with rectangular grooves (202) on both left and right sides, and a clamping block (208) is slidably connected inside the rectangular groove (202).

3. A highly sealed spherical bearing according to claim 2, characterized in that: A spring (207) is fixedly connected to the inner side of the rectangular groove (202), and the spring (207) is fixedly connected to the outer side of the clamping block (208).

4. The highly sealed spherical plain bearing according to claim 1, characterized in that: The shape of the rubber ring (205) is funnel-shaped, and the inner sides of the two rubber rings (205) away from one end are in contact with the outer side of the inner spherical ring (3).

5. The highly sealed spherical plain bearing according to claim 2, characterized in that: The side of the clamping block (208) away from the spring (207) is arranged as an inclined surface, and the side of the external threaded ring (204) away from the rubber ring (205) is provided with a clamping groove (203).

6. The highly sealed spherical plain bearing according to claim 1, characterized in that: A gap (206) distributed in an annular shape is formed on a side of the rubber ring (205) away from the external thread ring (204).

7. A highly sealed spherical plain bearing according to claim 5, characterized in that: The rectangular grooves (202) are distributed in an annular shape on the outside of the outer ring (1), and the clamping grooves (203) are distributed in an annular shape on the outside of the external threaded ring (204).

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