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CN-224229087-U - Needle bearing

CN224229087UCN 224229087 UCN224229087 UCN 224229087UCN-224229087-U

Abstract

The utility model relates to the technical field of bearings, in particular to a needle bearing, which comprises a mounting ring, a plurality of needle rollers, a plurality of fan-shaped blocks fixedly arranged on the inner wall of the mounting ring, a cavity arranged in the fan-shaped blocks, an arc-shaped strip arranged at the upper side of the inner part of the cavity, a lap-joint strip fixedly arranged at the lower side of the inner part of the cavity, and a connecting block arranged between the middle parts of two adjacent needle rollers, wherein a cavity is arranged at the upper side of the inner part of the connecting block, the cavity is communicated with the cavity, and the outer wall of the connecting block is overlapped with the outer wall of the needle rollers. Through the connecting block cooperation sector that sets up, when the wearing and tearing appear in the kingpin, combine the intercommunication relation between cavity and the cavity, utilize the displacement of rubber piece can guarantee the steady rest to the kingpin all the time, guarantee that its atress is even, improve the life of bearing.

Inventors

  • ZHOU DEGAO

Assignees

  • 宁波新贝轴承科技有限公司

Dates

Publication Date
20260512
Application Date
20250707

Claims (6)

  1. 1. A needle bearing, comprising: The inner side of the mounting ring (100) is uniformly and rotatably connected with a plurality of rolling pins (200) in an annular structure; The inner ends of the sector blocks (400) are overlapped with the outer wall of the needle roller (200), the installation ring comprises a cavity (402) formed in the sector blocks (400), an arc-shaped strip (410) is arranged at the upper side position inside the cavity (402), and an overlap joint strip (420) fixedly arranged at the lower side position inside the cavity (402) is also included, and the upper side outer wall of the overlap joint strip (420) is overlapped with the lower side outer wall of the arc-shaped strip (410); The needle roller is characterized by further comprising connecting blocks (300) arranged between the middle parts of two adjacent needle rollers (200), wherein a cavity (301) is formed in the upper side of the inside of each connecting block (300), the cavity (301) is communicated with a cavity (402), and the outer wall of each connecting block (300) is in lap joint with the outer wall of each needle roller (200).
  2. 2. The needle bearing of claim 1, wherein the inner side of the mounting ring (100) is provided with a mounting groove (101), the inner walls of the two sides of the mounting groove (101) are provided with lap holes (102), the needle bearing further comprises lap shafts (210) fixedly arranged on the outer walls of the two ends of the needle roller (200), the lap shafts (210) are arranged on the inner walls of the lap holes (102), and the lap shafts (210) are rotationally connected with the lap holes (102).
  3. 3. The needle bearing according to claim 2, further comprising a plurality of connecting holes (401) formed in an outer wall of an upper side of the segment (400), wherein the plurality of connecting holes (401) are communicated with the cavity (402), and further comprising a connecting pipe (310) fixedly connected to the connecting block (300), wherein the connecting pipe (310) is communicated with the inside of the chamber (301), and the connecting holes (401) are communicated with the connecting pipe (310) through connecting grooves (103) formed in the mounting ring (100).
  4. 4. The needle bearing of claim 3, wherein the connecting block (300) is made of rubber, arc-shaped surfaces (303) are formed on the outer walls of the two sides of the connecting block (300), and the outer walls of the arc-shaped surfaces (303) are in lap joint with the outer walls of the needle rollers (200).
  5. 5. The needle bearing according to claim 4, further comprising a movable cavity (302) formed at the inner lower side of the connecting block (300), wherein a rubber block (320) is movably connected in the movable cavity (302), the inner wall of the outer wall movable cavity (302) of the rubber block (320) is in sliding fit, and when the rubber block (320) moves towards the outer side, the outer wall of the corresponding arc-shaped surface (303) moves towards the outer wall of the needle roller (200).
  6. 6. A needle bearing according to claim 5, wherein a rubber layer is provided between the chamber (301) and the middle of the movable chamber (302).

Description

Needle bearing Technical Field The utility model relates to the field of bearings, in particular to a needle bearing. Background The needle roller bearing is a roller bearing with cylindrical rollers, the rollers are slender relative to the diameter, and the bearing has higher load bearing capacity despite a smaller section, but the radial structure is compact, the inner diameter size and the load bearing capacity are the same as those of other types of bearings, the outer diameter is minimum, and the needle roller bearing is particularly suitable for supporting structures with limited radial installation size. Because the axial direction of the needle roller bearing is longer, if abrasion occurs at the positions close to the two axial ends of the needle roller in the use process, the corresponding needle roller is easy to incline, at the moment, the axial stress of the needle roller is uneven, the abrasion is increased, the service life of the needle roller bearing is reduced, and in this way, the needle roller bearing is provided. Disclosure of Invention Aiming at the defects existing in the prior art, the invention provides the needle bearing, which can effectively solve the problems that the axial direction of the needle of the existing needle bearing is longer, if abrasion occurs at the positions close to the two axial ends of the needle in the use process, the corresponding needle is easy to incline, the axial stress of the needle is uneven at the moment, and the service life of the needle bearing is reduced. In order to achieve the above purpose, the present invention adopts the following technical scheme: the needle bearing comprises a mounting ring, wherein a plurality of needle rollers are uniformly and rotatably connected on the inner side of the mounting ring in an annular structure; The inner ends of the sector blocks are overlapped with the outer wall of the roller pin, the mounting ring further comprises a cavity arranged in the sector blocks, an arc-shaped strip is arranged at the upper side position in the cavity, the mounting ring further comprises an overlap joint strip fixedly arranged at the lower side position in the cavity, and the upper outer wall of the overlap joint strip is overlapped with the lower outer wall of the arc-shaped strip; The needle roller is characterized by further comprising a connecting block arranged between the middle parts of the adjacent two needle rollers, wherein a cavity is formed in the upper side of the inside of the connecting block, the cavity is communicated with the cavity, and the outer wall of the connecting block is overlapped with the outer wall of the needle rollers. Preferably, the mounting groove is formed in the inner side of the mounting ring, the inner walls of the two sides of the mounting groove are provided with lap holes, the needle roller is fixedly installed with lap shafts on the outer walls of the two ends of the needle roller, the lap shafts are installed on the inner walls of the lap holes, and the lap shafts are rotationally connected with the lap holes. Preferably, the fan-shaped block is characterized by further comprising a plurality of connecting holes formed in the outer wall of the upper side of the fan-shaped block, wherein the connecting holes are communicated with the cavity, the fan-shaped block is fixedly connected with a connecting pipe on the connecting block, the connecting pipe is communicated with the inside of the cavity, and the connecting holes are communicated with the connecting pipe through connecting grooves formed in a mounting ring. Preferably, the connecting block is made of rubber, and the outer walls of the two sides of the connecting block are provided with arc surfaces, and the outer walls of the arc surfaces are overlapped with the outer walls of the rolling needles. Preferably, the movable cavity is arranged at the lower side position in the connecting block, the movable cavity is movably connected with a rubber block, the inner wall of the outer wall movable cavity of the rubber block is in sliding fit, and when the rubber block moves towards the outer side, the outer wall of the corresponding arc-shaped surface moves towards the outer wall of the roller pin. Preferably, a rubber layer is arranged between the chamber and the middle part of the movable cavity. Compared with the prior art, the invention has the following beneficial effects: According to the utility model, the fan-shaped blocks are matched with the connecting blocks, when the rolling pin is worn, the connection relation between the cavity and the cavity is combined, the stable support of the rolling pin can be ensured all the time by utilizing the displacement of the rubber block, the stress uniformity of the rolling pin is ensured, and the service life of the bearing is prolonged. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embod