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A shaft-connected bearing with full rolling elements and its manufacturing method

A full rolling body, shaft-connected bearing technology, applied in the direction of shafts and bearings, bearing components, mechanical equipment, etc.

Active Publication Date: 2018-11-09
SHANGHAI F&S BEARING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a full-rolling-element shaft-connected bearing and its manufacturing method, to overcome the existing full-rolling-element bearings that open and fill the ball gap along the axial direction of the ferrule or process and fill the radial direction of the ferrule. There are many deficiencies and disadvantages such as ball holes and double-half ferrules not being paired and finished, which simplifies the structure of the full-rolling element shaft-connected bearing, facilitates processing, improves manufacturing accuracy, can perform double-sided dust-proof sealing, and runs smoothly and reliably. , which can meet the user's requirements for the reliability and service life of the bearing

Method used

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  • A shaft-connected bearing with full rolling elements and its manufacturing method
  • A shaft-connected bearing with full rolling elements and its manufacturing method
  • A shaft-connected bearing with full rolling elements and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment 1 is a single-row full-spherical shaft-connected bearing, and the first shaft part and the second shaft part are fastened by screwing each other.

[0067] like figure 1 As shown, it includes an outer ring 11, a shaft 12, a ball 13, a dust cover 14 and a retaining ring 15, wherein the shaft 12 is composed of a first shaft part 121 with a first sub-channel and a protrusion protruding from the shaft section and a second shaft part with a second The second shaft part 122 is composed of a channel and a hole adapted to the protrusion. The protruding shaft section is a threaded shaft section, and the hole is a threaded through hole. The first shaft part 121 and the second shaft part 122 are threaded and fastened to each other to form the shaft 12. After fastening, the first shaft part 121 and the second shaft part 121 The shaft part 122 is fitted to the top, and the sub-channel on 121 and the sub-channel on 122 are butted to form a bearing shaft channel.

[0068] ...

Embodiment 2

[0074] Embodiment 2 is a single-row full-spherical shaft-connected bearing, and the first shaft part and the second shaft part are fastened by fastener nuts.

[0075] like figure 2 As shown, it includes an outer ring 21, a shaft 22, a ball 23, and a dust cover 24, wherein the shaft 22 is composed of a first shaft part 221 with a first sub-channel and a protrusion protruding from the shaft section and a second sub-channel and a The second shaft part 222 of the hole that is adapted to the convex part is composed of the threaded shaft section protruding from 221 passing through the light through hole of 222, and the threaded shaft section protruding from the nut 223 and 221 is screwed to realize the tightness of 221 and 222. Solid, in order to make the fastening effect better, use the washer 224.

[0076] In order to ensure that the first shaft part 221 and the second shaft part 222 are effectively fitted and tightened, and to prevent the nut 221 from rotating during the proces...

Embodiment 3

[0080] Embodiment 3 is a single-row full-spherical shaft-connected bearing, and the first shaft part and the second shaft part are fastened by a limit collar.

[0081] like image 3 As shown, it includes an outer ring 31, a shaft 32, a ball 33, and a dust cover 34, wherein the shaft 32 consists of a first shaft part 321 with a first sub-channel and a protrusion protruding from the shaft section and a second sub-channel and It is composed of the second shaft part 322 of the hole part that is adapted to the convex piece. The optical axis section protruding from 321 passes through the light through hole of 322, and the collar 323 is put into the groove of the head of the convex piece to realize the connection between 321 and 322. fasten.

[0082] The bearing of this embodiment is very similar to the single-row full-spherical shaft-connected bearing described in the second embodiment. The difference from the second embodiment is that the first shaft part 321 and the second shaft ...

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Abstract

The invention provides a full rolling body inner integral ball bearing and a manufacturing method thereof. The bearing comprises an outer ring, a shaft and a rolling body embedded between an outer ring raceway and a shaft raceway, wherein the shaft comprises a first shaft component and a second shaft component; the first shaft component is provided with a first branch raceway and a convex piece which extends out of a shaft section; the second shaft component is provided with a second branch raceway and a hole part matched with the convex piece; the first shaft component and the second shaft component are adhered and fastened in the axis direction of the bearing; the first branch raceway and the second branch raceway form the complete shaft raceway of the bearing. Compared with the prior art, the bearing provided by the invention has the following advantages that: (1), the bearing raceway is complete and has no gap; (2) the bearing with a seal can be manufactured without changing the exterior shape and installation dimension of the shaft; (3) the pairing processing efficiency is high and the precision is high; (4) each component of the shaft is rigidly fastened, and even if the components are in a stressed use state, micro separation can not occur, so that the operation stability, limit speed and operation reliability of the bearing are greatly improved.

Description

technical field [0001] The invention relates to the technical field of special rolling bearings, in particular to a shaft-connected bearing with full rolling elements and a manufacturing method thereof. Full-rolling element bearings refer to rolling bearings without cages, and as many rolling elements as possible are arranged in the raceway; shaft-connected bearings refer to the inner ring of the usual bearing being replaced by a solid shaft or a shaft with a hole (or called a thick-walled inner ring). Bearings in which the inner ring raceway is machined directly on the replacement shaft. Background technique [0002] Shaft bearings are being used more and more widely because of their compact structure and simple installation. Full rolling element bearings have the following advantages because they do not have a cage and are filled with as many rolling elements as possible: (1) The application conditions of the bearing, such as extreme temperature, are no longer affected by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/30F16C33/58B23P15/00
Inventor 赵联春赵思澄陈淑英
Owner SHANGHAI F&S BEARING TECH