Novel needle bearing

Abstract

The invention relates to the technical field of needle bearings, in particular to a novel needle bearing which comprises an outer ring, a fixing frame and an inner ring, a plurality of needle roller assemblies are evenly clamped to the fixing frame and make contact with the inner wall of the outer ring, the inner ring is slidably mounted in the fixing frame, and the inner ring is slidably mounted in the fixing frame. The outer wall of the inner ring is in contact with a roller pin assembly; according to the novel needle roller bearing, the needle roller assemblies are arranged in the novel needle roller bearing, the contact area between the needle roller assemblies and the outer ring and the contact area between the needle roller assemblies and the inner ring are reduced through mutual cooperation of the structures in the assemblies in the using process of the novel needle roller bearing, and then the friction force of the novel needle roller bearing in the using process is reduced, and the transmission efficiency of the novel needle roller bearing is improved; the problems that in the prior art, the contact area between the roller pin and the inner ring and the contact area between the roller pin and the outer ring are large, the large contact area means that more friction force can be generated in the rolling process, the efficiency of the bearing can be reduced, and higher energy consumption can be possibly caused are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of needle roller bearings, and in particular relates to a novel needle roller bearing. Background Art

[0002] Needle roller bearings are a type of roller bearing with cylindrical rollers. The rollers are thin and long, shaped like needles. Needle roller bearings are widely used in various mechanical devices, especially in situations where radial dimensions need to be reduced. Needle roller bearings are highly favored due to their compact structure.

[0003] Needle roller bearings mainly bear radial loads and reduce friction and wear by rolling the needle rollers between the inner and outer rings, thereby achieving smooth rotational motion. When the shaft or housing is axially displaced, additional friction will be generated between the needle rollers and the inner and outer rings, thereby preventing direct contact and wear between adjacent parts surfaces;

[0004] In the prior art, the contact area between the needle roller and the inner ring and the outer ring is relatively large. A larger contact area means that more friction will be generated during the rolling process, which will not only reduce the efficiency of the bearing, but also may lead to higher energy consumption.

[0005] Therefore, this solution provides a new type of needle roller bearing to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a new needle roller bearing to solve the problem in the prior art that the contact area between the needle roller and the inner ring and the outer ring is large. The larger contact area means that more friction will be generated during the rolling process, which will not only reduce the efficiency of the bearing, but may also lead to higher energy consumption.

[0007] To achieve the above object, the present invention provides the following technical solution: a novel needle roller bearing, comprising an outer ring, a fixed frame and an inner ring, wherein a plurality of needle roller assemblies are evenly clamped on the fixed frame, wherein the plurality of needle roller assemblies are in contact with the inner wall of the outer ring, wherein the inner ring is slidably mounted inside the fixed frame, and the outer wall of the inner ring is in contact with the needle roller assembly;

[0008] The needle roller assembly comprises a connecting column and a rolling ring. A rectangular frame is inserted into the top surface of the connecting column. A fixing plate is installed on the outer wall of the rectangular frame. The rolling ring is installed on the outer side wall of the fixing plate.

[0009] Preferably, the top surface and the bottom surface of the connecting column are respectively provided with plug-in grooves, and a rectangular frame is slidably installed in the plug-in groove.

[0010] Preferably, magnets are respectively installed on inner walls of two plug-in slots on the same connecting column on one side of the inner cavity close to each other, and the magnets are magnetically attracted to the rectangular frame.

[0011] Preferably, a plurality of clamping grooves are evenly formed on the fixing frame, a rolling ring is rolled on the inner wall of the clamping groove, and the rolling ring rolls with the inner wall of the outer ring.

[0012] Preferably, there is a gap between the inner cavity connecting columns of the clamping groove.

[0013] Preferably, an inner ring is sleeved in the inner cavity of the fixed frame, and the outer wall of the inner ring is in contact with the rolling ring.

[0014] Preferably, a closed ring 1 is embedded between the inner ring and the outer ring, and through holes are symmetrically opened on the closed ring 1.

[0015] Preferably, a seal is fitted between the inner ring and the outer ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention arranges a needle roller assembly in a new needle roller bearing. During the use of the device, the structures in the assembly cooperate with each other to reduce the contact area between the needle roller assembly and the outer ring and the inner ring, thereby reducing the friction of the device when in use and improving the transmission efficiency of the device. This solves the problem in the prior art that the contact area between the needle roller and the inner ring and the outer ring is large. The large contact area means that more friction will be generated during the rolling process, which will not only reduce the efficiency of the bearing, but may also lead to higher energy consumption.

[0018] 2. The present invention arranges a needle roller assembly in a new needle roller bearing. When the device is in use, the overall structure of the assembly cooperates with each other, so that when the rolling ring in the needle roller assembly is excessively worn, it is convenient to align and replace it, and only the rolling ring needs to be replaced, thereby reducing production costs.

[0019] 3. The present invention arranges a needle roller assembly, a fixing frame, a snap-in groove closure ring 1 and a closure 2 in a new needle roller bearing. When the device is in use, the above structures cooperate with each other to achieve a more uniform and smooth flow of lubricating oil in the device when lubricating the device, thereby improving the lubrication efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of the present invention;

[0021] Figure 2 is a cross-sectional view of the present invention;

[0022] Figure 3 It is an exploded view of the present invention;

[0023] Figure 4 This is a structural diagram of the needle roller assembly of the present invention;

[0024] Figure 5 This is an exploded view of the needle roller assembly of the present invention;

[0025] Figure 6 It is a cross-sectional view of the needle roller assembly of the present invention;

[0026] Figure 7 It is a structural diagram of a fixed frame of the present invention;

[0027] Figure 8 It is a top sectional view of the present invention.

[0028] In the figure: 1, outer ring; 2, closed ring one; 3, inner ring; 4, through hole; 5, needle roller assembly; 501, connecting column; 502, rolling ring; 503, rectangular frame; 504, plug-in slot; 505, magnet; 506, fixing plate; 6, closed ring two; 7, fixing frame; 8, snap-in slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Reference Figure 1 - Figure 8 As shown, the present invention provides a novel needle roller bearing, comprising an outer ring 1, a fixed frame 7 and an inner ring 3, a plurality of needle roller assemblies 5 are evenly clamped on the fixed frame 7, the plurality of needle roller assemblies 5 are in contact with the inner wall of the outer ring 1, the inner ring 3 is slidably mounted inside the fixed frame 7, and the outer wall of the inner ring 3 is in contact with the needle roller assemblies 5;

[0031] The needle roller assembly 5 includes a connecting column 501 and a rolling ring 502 . A rectangular frame 503 is inserted into the top surface of the connecting column 501 . A fixing plate 506 is installed on the outer wall of the rectangular frame 503 . The rolling ring 502 is installed on the outer side wall of the fixing plate 506 .

[0032] In a further embodiment, referring to Figure 5 - Figure 6 , the top and bottom surfaces of the connecting column 501 are respectively provided with plug-in slots 504, and a rectangular frame 503 is slidably installed in the plug-in slot 504;

[0033] The plug-in slot 504 and the rectangular frame 503 are designed to be rectangular, so that the connection between the connecting column 501 and the rectangular frame 503 is more firmly secured and avoids slipping between them.

[0034] In a further embodiment, referring to Figure 5 - Figure 6, magnets 505 are respectively installed on the inner walls of the two plug-in slots 504 on the same connecting column 501 on the sides close to each other, and the magnets 505 are magnetically attracted to the rectangular frame 503;

[0035] The rectangular frame 503 is made of an alloy containing iron, cobalt and nickel, which facilitates the mutual adsorption between the rectangular frame 503 and the magnet 505 and ensures the overall performance of the needle roller assembly 5.

[0036] In a further embodiment, referring to Figure 1-Figure 8 A plurality of snap-fit ​​grooves 8 are evenly formed on the fixed frame 7, and a rolling ring 502 rolls on the inner wall of the snap-fit ​​groove 8, and the rolling ring 502 rolls with the inner wall of the outer ring 1;

[0037] The contact area between the needle roller assembly 5 and the outer ring 1 and the inner ring 3 is reduced, thereby reducing the friction of the device when in use and improving the transmission efficiency of the device.

[0038] In a further embodiment, referring to Figure 1 - Figure 8 There is a gap between the inner cavity connecting column 501 of the clamping groove 8; the inner ring 3 is sleeved in the inner cavity of the fixed frame 7, and the outer wall of the inner ring 3 and the rolling ring 502 are in contact with each other; a closed ring 2 is embedded between the inner ring 3 and the outer ring 1, and a through hole 4 is symmetrically opened on the closed ring 2; a closed second 6 is embedded between the inner ring 3 and the outer ring 1;

[0039] Among them, when the device needs to be lubricated, the closed ring 1 2 and the closed ring 2 6 are respectively clamped between the outer ring 1 and the inner ring 3 to close the space between the outer ring 1 and the inner ring 3, and then the lubricating oil is injected from a through hole 4. Because the rolling ring 502 and the clamping groove 8, the outer ring 1 and the inner ring 3 are in contact with each other, there is a gap between the connecting column 501 and the clamping groove 8, and the lubricating oil flows evenly and smoothly in the device, so that when the device is lubricated, the lubricating oil can flow more evenly and smoothly in the device, thereby improving the lubrication efficiency and effect.

[0040] The working principle of the present invention is as follows: after the device is used for a long time, when the rolling ring 502 that contacts the outer ring 1, the fixed frame 7 and the inner ring 3 is worn too much, the needle roller assembly 5 is removed from the device as a whole, and the rolling ring 502 is pulled to drive the rectangular frame 503 on the fixed plate 506 to be removed from the plug-in groove 504, so that the connecting column 501 and the rectangular frame 503 are separated from each other;

[0041] Then, a new rolling ring 502 is replaced, and the rectangular frame 503 inside the new rolling ring 502 is inserted into the insertion groove 504 on the connecting column 501, so that the rectangular frame 503 and the magnet 505 fit each other, and the quick maintenance of the vulnerable parts of the needle roller assembly 5 is completed. When the rolling ring 502 in the needle roller assembly 5 is excessively worn, it is convenient to align and replace it, and only the rolling ring 502 needs to be replaced, thereby reducing production costs;

[0042] When the device is in use, the rolling ring 502 contacts the outer ring 1, the inner ring 3 and the fixed frame 7 respectively, reducing the contact area between the needle roller assembly 5 and the outer ring 1, the inner ring 3 and the fixed frame 7, thereby reducing the friction of the device when in use and improving the transmission efficiency of the device;

[0043] When the device needs to be lubricated, the closed ring 1 2 and the closed ring 2 6 are respectively clamped between the outer ring 1 and the inner ring 3 to close the space between the outer ring 1 and the inner ring 3, and then the lubricating oil is injected from a through hole 4. Because the rolling ring 502 and the clamping groove 8, the outer ring 1 and the inner ring 3 are in contact with each other, there is a gap between the connecting column 501 and the clamping groove 8, and the lubricating oil flows evenly and smoothly in the device, so that when the device is lubricated, the lubricating oil can flow more evenly and smoothly in the device, thereby improving the lubrication efficiency and effect.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel needle roller bearing, comprising an outer ring (1), a fixed frame (7) and an inner ring (3), characterized in that: A plurality of needle roller assemblies (5) are evenly clamped on the fixed frame (7), and the plurality of needle roller assemblies (5) are in contact with the inner wall of the outer ring (1). An inner ring (3) is slidably mounted inside the fixed frame (7), and the outer wall of the inner ring (3) is in contact with the needle roller assemblies (5); The needle roller assembly (5) comprises a connecting column (501) and a rolling ring (502); a rectangular frame (503) is inserted into the top surface of the connecting column (501); a fixing plate (506) is installed on the outer wall of the rectangular frame (503); and a rolling ring (502) is installed on the outer side wall of the fixing plate (506).

2. A new needle roller bearing according to claim 1, characterized in that: The top surface and the bottom surface of the connecting column (501) are respectively provided with an inserting groove (504), and a rectangular frame (503) is slidably installed in the inserting groove (504).

3. A new needle roller bearing according to claim 2, characterized in that: Magnets (505) are respectively installed on inner walls of the two plug-in slots (504) on the same connecting column (501) on the sides close to each other, and the magnets (505) are magnetically attracted to the rectangular frame (503).

4. A new needle roller bearing according to claim 1, characterized in that: A plurality of clamping grooves (8) are evenly arranged on the fixing frame (7), a rolling ring (502) is rolled on the inner wall of the clamping groove (8), and the rolling ring (502) and the inner wall of the outer ring (1) roll relative to each other.

5. A new needle roller bearing according to claim 4, characterized in that: There is a gap between the inner cavity connecting columns (501) of the clamping groove (8).

6. A new type of needle roller bearing according to claim 1, characterized in that: An inner ring (3) is sleeved in the inner cavity of the fixed frame (7), and the outer wall of the inner ring (3) and the rolling ring (502) are in contact with each other.

7. A new needle roller bearing according to claim 1, characterized in that: A closed ring (2) is fitted between the inner ring (3) and the outer ring (1), and through holes (4) are symmetrically provided on the closed ring (2).

8. A new type of needle roller bearing according to claim 7, characterized in that: A seal (6) is fitted between the inner ring (3) and the outer ring (1).

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