Impact-resistant needle bearing

Abstract

The utility model discloses an impact-resistant needle bearing, and belongs to the technical field of needle bearings. The inner bearing is arranged in the outer bearing; the mounting disc is movably connected to the rear side of the outer bearing in an inserted mode, the front end of the mounting disc is fixedly connected with a roller pin frame, the roller pin frame is movably connected between the outer bearing and the inner bearing in an inserted mode, and a positioning disc is arranged at the front end of the roller pin frame; according to the utility model, the screw cap and the stud are in threaded fit, so that the positioning disc and the roller pin frame can be conveniently mounted, the roller pins can be conveniently mounted, and the convenience in mounting and dismounting is optimized through the screw cap and the stud, so that the roller pins can be conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of needle roller bearings, and more specifically, to an impact-resistant needle roller bearing. Background Art

[0002] A needle roller bearing is a roller bearing with cylindrical rollers. The rollers are thin and long relative to their diameter. Such rollers are called needle rollers. Despite having a small cross-section, the bearing still has a high load-bearing capacity. The needle roller bearing is equipped with thin and long rollers, so it has a compact radial structure. When its inner diameter size and load capacity are the same as those of other types of bearings, its outer diameter is the smallest, and it is particularly suitable for support structures where the radial installation size is limited.

[0003] Some patent documents related to needle roller bearings are disclosed in the prior art. The Chinese patent with the application number CN202220710018.0 discloses a needle roller bearing, which includes an outer bearing ring, an inner bearing ring, and needle rollers. The needle rollers are located between the inner bearing ring and the outer bearing ring. An outer raceway and an inner raceway for the needle rollers to roll are provided on the outer bearing ring and the inner bearing ring. The needle rollers are fully assembled between the outer raceway and the inner raceway. A lubricating oil groove is provided on the outer raceway, and the lubricating oil groove is arranged in a circle along the circumference. A plurality of lubricating oil holes are provided on the outer diameter of the outer bearing ring, and the plurality of lubricating oil holes are respectively communicated with the lubricating oil groove. The full needle roller bearing of the utility model improves the heat dissipation capacity of the bearing and meets the requirements of some high-speed and high-load working conditions.

[0004] In the above patent, the needle rollers are not easy to disassemble. After the needle roller bearing is used for a long time, the needle rollers are prone to damage, which affects the use of the bearing. Therefore, we propose an impact-resistant needle roller bearing. Content of the Utility Model

[0005] Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide an impact-resistant needle roller bearing. The utility model facilitates the installation of the positioning disk and the needle roller holder through the threaded cooperation of the nut and the stud, thereby facilitating the installation of a plurality of needle rollers. The installation and disassembly convenience is optimized through the threaded cooperation of the nut and the stud, so as to facilitate its replacement.

[0007] Technical Solution

[0008] To solve the above problems, the utility model adopts the following technical solution:

[0009] An impact-resistant needle roller bearing, comprising:

[0010] An outer bearing;

[0011] An inner bearing, and the inner bearing is arranged inside the outer bearing;

[0012] An installation disk, the installation disk is movably inserted into the rear side of the outer bearing, a needle roller holder is fixedly connected to the front end of the installation disk, the needle roller holder is movably inserted between the outer bearing and the inner bearing, and a positioning disk is arranged at the front end of the needle roller holder;

[0013] Needle rollers, a plurality of needle rollers are provided, and the plurality of needle rollers are all rotatably connected between the needle roller holder and the positioning disk;

[0014] An installation mechanism, the installation mechanism is arranged on the outer bearing, and the installation mechanism is connected to the needle roller holder and the positioning disk.

[0015] As a preferred solution of the present utility model, the installation mechanism includes stud bolts, a positioning disk and nuts, a plurality of stud bolts and nuts are provided, the plurality of stud bolts are all fixedly connected to the front end of the needle roller holder, the positioning disk is movably inserted on the plurality of stud bolts, and the plurality of nuts are threadedly connected to the surfaces of the plurality of stud bolts.

[0016] As a preferred solution of the present utility model, a receiving groove is formed on the positioning disk, a connecting ring is movably inserted into the receiving groove, and the connecting ring is sleeved on the surfaces of the plurality of stud bolts.

[0017] As a preferred solution of the present utility model, an oil groove is formed on the outer bearing, and a plurality of oil holes are formed in the oil groove.

[0018] As a preferred solution of the present utility model, the plurality of stud bolts and the plurality of nuts are all four in number.

[0019] Advantageous effects

[0020] Compared with the prior art, the advantages of the present utility model are as follows:

[0021] (1) In this solution, when the needle rollers need to be replaced, first remove the nuts from the surfaces of the stud bolts, and then take out the connecting ring from the receiving groove. At this time, take out the positioning disk from the surfaces of the four stud bolts, so as to facilitate the disassembly of the positioning disk. After the positioning disk is disassembled, the needle rollers can be taken out from the needle roller holder, thus facilitating the replacement of the needle rollers.

[0022] (2) In this solution, the oil groove is provided to facilitate the flow of lubricating oil, and then the lubricating oil can flow into the outer bearing through the oil holes. Description of the drawings

[0023] Figure 1 is the front view three-dimensional drawing of the present utility model;

[0024] Figure 2 is the schematic diagram of the needle rollers of the present utility model;

[0025] Figure 3 is the cross-sectional view of the outer bearing of the present utility model;

[0026] Figure 4 Schematic diagram of the outer bearing of the present utility model.

[0027] Explanation of the reference numerals in the figure:

[0028] 1. Outer bearing; 2. Inner bearing; 3. Oil groove; 4. Oil hole; 5. Mounting plate; 6. Needle roller holder; 7. Stud; 8. Positioning plate; 9. Accommodating groove; 10. Connecting ring; 11. Nut; 12. Needle roller. Specific implementation mode

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment:

[0031] Please refer to Figures 1 - 4 , the impact-resistant needle roller bearing, including:

[0032] Outer bearing 1;

[0033] Inner bearing 2, the inner bearing 2 is arranged inside the outer bearing 1;

[0034] Mounting plate 5, the mounting plate 5 is movably inserted into the rear side of the outer bearing 1, the front end of the mounting plate 5 is fixedly connected with a needle roller holder 6, the needle roller holder 6 is movably inserted between the outer bearing 1 and the inner bearing 2, and a positioning plate 8 is arranged at the front end of the needle roller holder 6;

[0035] Needle rollers 12, the needle rollers 12 are arranged in multiple numbers, and the multiple needle rollers 12 are all rotatably connected between the needle roller holder 6 and the positioning plate 8.

[0036] In this embodiment, the inner bearing 2 is for facilitating the cooperation with the outer bearing 1, the mounting plate 5 is for facilitating the fixation of the needle roller holder 6, the needle roller holder 6 is for facilitating the insertion and rotational connection of the needle rollers 12, the needle roller holder 6 is convenient for being inserted into the outer bearing 1 and the inner bearing 2, the positioning plate 8 is for facilitating the cooperation with the needle roller holder 6, so as to facilitate the installation of the needle rollers 12. The present utility model is convenient for installing the positioning plate 8 and the needle roller holder 6 through the threaded cooperation of the nut 11 and the stud 7, so as to facilitate the installation of multiple needle rollers 12. The threaded cooperation of the nut 11 and the stud 7 optimizes the convenience of installation and disassembly, so as to facilitate the replacement thereof.

[0037] Specifically, the installation mechanism includes studs 7, a positioning disk 8, and nuts 11. A plurality of studs 7 and nuts 11 are provided. The plurality of studs 7 are fixedly connected to the front end of the needle roller carrier 6. The positioning disk 8 is movably inserted onto the plurality of studs 7, and the plurality of nuts 11 are threadedly connected to the surfaces of the plurality of studs 7.

[0038] In this embodiment, the studs 7 are for facilitating the threaded engagement with the nuts 11, and the positioning disk 8 is for facilitating the insertion onto the studs 7. Through the cooperation of the positioning disk 8 and the needle roller carrier 6, the rotational connection 20 is facilitated.

[0039] Specifically, a receiving groove 9 is formed on the positioning disk 8, and a connecting ring 10 is movably inserted into the receiving groove 9. The connecting ring 10 is sleeved on the surfaces of the plurality of studs 7.

[0040] In this embodiment, the formation of the receiving groove 9 is for facilitating the accommodation of the connecting ring 10, and the connecting ring 10 is for facilitating the insertion into the four studs 7, thereby facilitating the connection of the four studs 7 and optimizing the convenience of installing the positioning disk 8.

[0041] Specifically, an oil groove 3 is formed on the outer bearing 1, and a plurality of oil holes 4 are formed in the oil groove 3.

[0042] In this embodiment, the formation of the oil groove 3 is for facilitating the formation of the oil holes 4, and the formation of the oil groove 3 is for facilitating the flow of lubricating oil. Then, through the oil holes 4, the lubricating oil can flow into the outer bearing 1.

[0043] Specifically, both the plurality of studs 7 and the plurality of nuts 11 are provided in four.

[0044] In this embodiment, both the plurality of studs 7 and the plurality of nuts 11 are provided in four.

[0045] Working principle: When the needle rollers 12 need to be replaced, first, the nuts 11 are removed from the surfaces of the studs 7, and then the connecting ring 10 is taken out of the receiving groove 9. At this time, the positioning disk 8 is taken out from the surfaces of the four studs 7, thereby facilitating the removal of the positioning disk 8. After the positioning disk 8 is removed, the needle rollers 12 can be taken out from the needle roller carrier 6, thereby facilitating the replacement of the needle rollers 12.

[0046] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improvement concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. Impact-resistant needle roller bearing, characterized in that, Comprising: Outer bearing (1); Inner bearing (2), the inner bearing (2) is arranged inside the outer bearing (1); Mounting disc (5), the mounting disc (5) is movably inserted into the rear side of the outer bearing (1), a front end of the mounting disc (5) is fixedly connected to a needle roller holder (6), the needle roller holder (6) is movably inserted between the outer bearing (1) and the inner bearing (2), and a positioning disc (8) is arranged at a front end of the needle roller holder (6); Needle rollers (12), the needle rollers (12) are provided in plurality, and the plurality of needle rollers (12) are all rotatably connected between the needle roller holder (6) and the positioning disc (8); Mounting mechanism, the mounting mechanism is arranged on the outer bearing (1), and the mounting mechanism is connected to the needle roller holder (6) and the positioning disc (8).

2. The impact-resistant needle roller bearing according to claim 1, wherein: The mounting mechanism includes studs (7), a positioning disc (8) and nuts (11), the studs (7) and the nuts (11) are both provided in plurality, the plurality of studs (7) are all fixedly connected to a front end of the needle roller holder (6), the positioning disc (8) is movably inserted onto the plurality of studs (7), and the plurality of nuts (11) are threadedly connected to surfaces of the plurality of studs (7).

3. The impact-resistant needle roller bearing according to claim 2, wherein: A receiving groove (9) is formed in the positioning disc (8), a connecting ring (10) is movably inserted into the receiving groove (9), and the connecting ring (10) is sleeved on surfaces of the plurality of studs (7).

4. The impact-resistant needle roller bearing according to claim 3, characterized in that: An oil groove (3) is formed in the outer bearing (1), and a plurality of oil holes (4) are formed in the oil groove (3).

5. The impact-resistant needle roller bearing according to claim 4, characterized in that: The plurality of studs (7) and the plurality of nuts (11) are both provided as four.

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