Rolling type knuckle bearing

Abstract

The utility model discloses a rolling type knuckle bearing which comprises a bearing outer ring and a connecting rod, a bearing inner ring is arranged in the bearing outer ring, an annular ball groove is formed in the outer wall of the bearing inner ring, a plurality of bearing balls are arranged in the annular ball groove, and the connecting rod is connected with the bearing inner ring. An oil injection opening is fixed to the outer wall of one side of the bearing inner ring, one side of the oil injection opening is connected with an oil injection channel, and the connecting rod is fixed to the bottom end of the bearing outer ring. Compared with an existing knuckle bearing, the rolling type knuckle bearing is provided with the ball rotating mechanism and the lubricating mechanism, the friction force of the rolling type knuckle bearing can be effectively reduced, so that the rotating resistance of the rolling type knuckle bearing is reduced, and the rotating flexibility of the rolling type knuckle bearing is improved; a user can eliminate specification errors by finely adjusting the length of the device, meanwhile, vibration generated by the device can be reduced to a certain degree, and the applicability of the device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a rolling joint bearing. Background Art

[0002] A spherical plain bearing is a kind of spherical sliding bearing, whose sliding contact surface is an inner spherical surface and an outer spherical surface. It can rotate and swing at any angle during movement. It is made by a variety of special process treatment methods such as surface phosphating, blasting, inlaying, spraying, etc. Most of the existing spherical plain bearings do not have lubricating oil storage mechanism and self-coating mechanism. The lubricating oil between the spherical surfaces is consumed quickly and needs to be manually coated.

[0003] The publication number authorized by China is CN215980449U, and it is named a patent for a joint bearing. The device includes an outer ring and a split ball. The split ball is movably installed in an axial hole opened in the outer ring. The split ball includes a central flat ball segment, and the central flat ball segment is connected to the outer ball segment on both sides. Mounting grooves for mounting the split ball are opened on both sides of the axial hole. The width of the mounting groove in the vertical direction is greater than the thickness of the central flat ball segment of the split ball, and less than the thickness of the split ball as a whole. Inner spherical surfaces supporting the split ball are arranged on the upper and lower sides of the axial hole. In the joint bearing, the width of the mounting groove is shortened, so that the area of ​​the inner spherical surface is increased, thereby improving the axial bearing capacity of the joint bearing.

[0004] Although the above device can improve the axial bearing capacity of the spherical bearing, there are still some problems when using the device:

[0005] 1. The device does not have a ball mechanism and a ball lubrication mechanism. When the device is working, the friction between the spherical surfaces is large, which is prone to heat generation and lack of flexibility.

[0006] 2. The rod length of the device cannot be adjusted. When the accessories of the device or the device have a certain specification error, the error cannot be compensated by adjustment, resulting in low applicability.

[0007] In view of the above situation, technical innovation is carried out on the basis of existing spherical bearings. Utility Model Content

[0008] The purpose of the utility model is to provide a rolling spherical bearing to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rolling joint bearing, comprising a bearing outer ring and a connecting rod, a bearing inner ring is arranged inside the bearing outer ring, and an annular ball groove is opened on the outer wall of the bearing inner ring, bearing balls are arranged inside the annular ball groove, and there are multiple bearing balls, an oil filling port is fixed on the outer wall of one side of the bearing inner ring, and an oil filling channel is connected to one side of the oil filling port, the connecting rod is fixed to the bottom end of the bearing outer ring, and the connecting rod and the bearing outer ring are welded and fixed.

[0010] Furthermore, a connecting piece 1 is fixed to the bottom end of the connecting rod, and a slot 1 is provided inside both left and right sides of the connecting piece 1.

[0011] Furthermore, a rubber block is fixed to the bottom end of the first connecting piece, and a second connecting piece is fixed to the bottom end of the rubber block.

[0012] Furthermore, two slots are provided inside the left and right ends of the second connecting piece, and a semi-threaded rod is provided inside the second slot.

[0013] Furthermore, a nut is provided at the bottom end of the semi-threaded rod, and the nut is threadedly connected to the semi-threaded rod.

[0014] Furthermore, a fixing component is welded to the bottom end of the second connecting piece, and the fixing component includes an extension rod and an external thread, and the outer wall of the bottom end of the extension rod is provided with an external thread.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the device is provided with a ball rotating mechanism and a lubrication mechanism, which can effectively reduce the friction of the device, thereby reducing the rotational resistance of the device and improving the rotational flexibility of the device; at the same time, the device is provided with an extension rod mechanism with fine-tunable length, and the user can eliminate specification errors by fine-tuning the length of the device; at the same time, it can also reduce the vibration generated by the device to a certain extent, which is conducive to improving the applicability of the device.

[0016] 1. The utility model arranges a bearing outer ring, a bearing inner ring, an annular ball groove, bearing balls, an oil filling port, an oil filling channel, a connecting rod and a connecting plate. The bearing balls can convert the sliding friction between the bearing outer ring and the bearing inner ring into rolling friction, thereby effectively reducing the friction between the bearing outer ring and the bearing inner ring. Before using the device, the user can inject lubricating oil into the oil filling port through the oil filling device, and the lubricating oil will flow into the annular ball groove along the oil filling channel. When the device is running, the bearing balls in the annular ball groove can apply the lubricating oil to the contact part between the bearing outer ring and the bearing inner ring during rotation, thereby further reducing the friction of the device and improving the flexibility of the device. Through the above structure, the friction of the device can be effectively reduced, thereby reducing the rotational resistance of the device and improving the rotational flexibility of the device.

[0017] 2. The utility model is provided with a connecting rod, a connecting piece 1, a slot 1, a rubber block, a connecting piece 2, a slot 2, a semi-threaded rod and a nut. The rubber block has a certain elasticity. When the user needs to fine-tune the length of the device, the nut can be loosened or tightened. When the user loosens the nut, the distance between the connecting piece 1 and the connecting piece 2 becomes longer due to the restoring elasticity of the rubber block. Conversely, when the user tightens the nut, the rubber block is compressed by the connecting piece 1 and the connecting piece 2, and the length of the device becomes shorter, thereby realizing the adjustment of the length of the device. Therefore, even if the device or the accessories fixed to the device have a certain specification error, the error can be compensated by the mechanism. At the same time, since the rubber block has elasticity, it can also reduce the vibration generated by the operation of the bearing part to a certain extent. Through the above process, the user can eliminate the specification error by fine-tuning the length of the device, and at the same time can also reduce the vibration generated by the device to a certain extent, which is conducive to improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of a rolling spherical bearing of the utility model;

[0019] Figure 2 It is a partial front view and cross-sectional enlarged structural schematic diagram of a rolling spherical bearing of the utility model, including a bearing outer ring, a bearing inner ring, an annular ball groove, a bearing ball, an oil filling port and an oil filling channel;

[0020] Figure 3 It is a partial front view and cross-sectional enlarged structural schematic diagram of a connecting rod, a connecting piece 1, a rubber block, a connecting piece 2, a semi-threaded rod and a nut of a rolling spherical bearing of the utility model.

[0021] In the figure: 1. outer ring of bearing; 2. inner ring of bearing; 3. annular ball groove; 4. bearing ball; 5. oil filling port; 6. oil filling channel; 7. connecting rod; 8. connecting piece 1; 9. slot 1; 10. rubber block; 11. connecting piece 2; 12. slot 2; 13. semi-threaded rod; 14. nut; 15. fixing assembly; 1501, extension rod; 1502, external thread. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-3 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0023] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] like Figure 1 and Figure 2 As shown, a rolling joint bearing comprises a bearing outer ring 1 and a connecting rod 7, a bearing inner ring 2 is arranged inside the bearing outer ring 1, and an annular ball groove 3 is opened on the outer wall of the bearing inner ring 2, a bearing ball 4 is arranged inside the annular ball groove 3, and a plurality of bearing balls 4 are arranged, an oil filling port 5 is fixed on the outer wall of one side of the bearing inner ring 2, and an oil filling channel 6 is connected to one side of the oil filling port 5, a connecting rod 7 is fixed to the bottom end of the bearing outer ring 1, and the connecting rod 7 and the bearing outer ring 1 are welded and fixed, and the bearing ball 4 can convert the sliding friction between the bearing outer ring 1 and the bearing inner ring 2 into rolling friction, thereby In order to effectively reduce the friction between the bearing outer ring 1 and the bearing inner ring 2, before using the device, the user can inject lubricating oil into the oil filling port 5 through the oil filling device, and the lubricating oil will flow into the annular ball groove 3 along the oil filling channel 6. When the device is running, the bearing balls 4 in the annular ball groove 3 can apply the lubricating oil to the contact part between the bearing outer ring 1 and the bearing inner ring 2 during rotation, thereby further reducing the friction of the device and improving the flexibility of the device. Through the above structure, the friction of the device can be effectively reduced, thereby reducing the rotational resistance of the device and improving the rotational flexibility of the device.

[0026] like Figure 1 and Figure 3As shown, a connecting piece 18 is fixed to the bottom end of the connecting rod 7, and a slot 19 is provided inside the left and right sides of the connecting piece 18, a rubber block 10 is fixed to the bottom end of the connecting piece 18, and a connecting piece 2 11 is fixed to the bottom end of the rubber block 10, a slot 2 12 is provided inside the left and right ends of the connecting piece 2 11, and a semi-threaded rod 13 is provided inside the slot 2 12, a nut 14 is provided at the bottom end of the semi-threaded rod 13, and the nut 14 is threadedly connected to the semi-threaded rod 13, a fixing component 15 is welded to the bottom end of the connecting piece 2 11, and the fixing component 15 includes an extension rod 1501 and an external thread 1502, and the outer wall of the bottom end of the extension rod 1501 is provided with an external thread 1502, and the rubber block 10 has a certain elasticity, and can be loosened when the user needs to fine-tune the length of the device. Or tighten the nut 14. When the user loosens the nut 14, the distance between the connecting piece 1 8 and the connecting piece 2 11 becomes longer due to the restoring elasticity of the rubber block 10. Conversely, when the user tightens the nut 14, the rubber block 10 is compressed by the connecting piece 1 8 and the connecting piece 2 11, and the length of the device becomes shorter, thereby realizing the adjustment of the length of the device. Therefore, even if the device or the accessories fixed to the device have a certain specification error, the error can be compensated by the mechanism. At the same time, since the rubber block 10 is elastic, it can also reduce the vibration generated by the operation of the bearing part to a certain extent. Through the above process, the user can eliminate the specification error by fine-tuning the length of the device, and at the same time can also reduce the vibration generated by the device to a certain extent, which is conducive to improving the applicability of the device.

[0027] In summary: when using the rolling spherical joint bearing, first, the inner wall of the bearing outer ring 1 is a spherical arc surface, and the outer wall of the bearing inner ring 2 is also a spherical arc surface. The outer diameter of the bearing inner ring 2 is slightly smaller than the inner diameter of the bearing outer ring 1. Therefore, the bearing outer ring 1 and the bearing inner ring 2 can not only roll and rotate, but also realize axial rotation. The bearing balls 4 can convert the sliding friction between the bearing outer ring 1 and the bearing inner ring 2 into rolling friction, thereby effectively reducing the friction between the bearing outer ring 1 and the bearing inner ring 2. Before using the device, the user can inject lubricating oil into the oil filling port 5 through the oil filling device, and the lubricating oil will flow into the annular ball groove 3 along the oil filling channel 6. When the device is running, the bearing balls 4 in the annular ball groove 3 can apply the lubricating oil to the contact part between the bearing outer ring 1 and the bearing inner ring 2 during rotation, thereby In order to further reduce the friction of the device and improve the flexibility of the device, the rubber block 10 has a certain elasticity. When the user needs to fine-tune the length of the device, the nut 14 can be loosened or tightened. When the user loosens the nut 14, the distance between the connecting piece 1 8 and the connecting piece 2 11 becomes longer due to the recovery elasticity of the rubber block 10. Conversely, when the user tightens the nut 14, the rubber block 10 is compressed by the connecting piece 1 8 and the connecting piece 2 11, and the length of the device becomes shorter, thereby achieving the adjustment of the length of the device. Therefore, even if the device or the accessories fixed to the device have a certain specification error, the error can be compensated by the mechanism. At the same time, since the rubber block 10 is elastic, it can also reduce the vibration generated by the operation of the bearing part to a certain extent. This is the working principle of the rolling joint bearing.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A rolling spherical bearing, comprising a bearing outer ring (1) and a connecting rod (7), characterized in that: A bearing inner ring (2) is arranged inside the bearing outer ring (1), and an annular ball groove (3) is opened on the outer wall of the bearing inner ring (2), a bearing ball (4) is arranged inside the annular ball groove (3), and a plurality of bearing balls (4) are arranged, an oil filling port (5) is fixed on the outer wall of one side of the bearing inner ring (2), and one side of the oil filling port (5) is connected to an oil filling channel (6), and the connecting rod (7) is fixed to the bottom end of the bearing outer ring (1), and the connecting rod (7) and the bearing outer ring (1) are fixed by welding.

2. A rolling spherical plain bearing according to claim 1, characterized in that: A connecting piece (8) is fixed to the bottom end of the connecting rod (7), and a slot (9) is provided inside the left and right sides of the connecting piece (8).

3. A rolling spherical plain bearing according to claim 2, characterized in that: A rubber block (10) is fixed to the bottom end of the connecting piece 1 (8), and a connecting piece 2 (11) is fixed to the bottom end of the rubber block (10).

4. A rolling spherical plain bearing according to claim 3, characterized in that: The left and right ends of the second connecting piece (11) are both provided with second slot holes (12), and the interior of the second slot holes (12) is provided with a semi-threaded rod (13).

5. The rolling spherical plain bearing according to claim 4, characterized in that: A nut (14) is provided at the bottom end of the semi-threaded rod (13), and the nut (14) is threadedly connected to the semi-threaded rod (13).

6. The rolling spherical plain bearing according to claim 3, characterized in that: A fixing assembly (15) is welded to the bottom end of the second connecting piece (11), and the fixing assembly (15) comprises a protruding rod (1501) and an external thread (1502), and the outer wall of the bottom end of the protruding rod (1501) is provided with an external thread (1502).

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