CN204173035U - A kind of track pin shaft retaining ring - Google Patents
A kind of track pin shaft retaining ring Download PDFInfo
- Publication number
- CN204173035U CN204173035U CN201420702654.4U CN201420702654U CN204173035U CN 204173035 U CN204173035 U CN 204173035U CN 201420702654 U CN201420702654 U CN 201420702654U CN 204173035 U CN204173035 U CN 204173035U
- Authority
- CN
- China
- Prior art keywords
- ring
- pin shaft
- shaft retaining
- retaining ring
- track pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model relates to a kind of track pin shaft retaining ring, comprise back-up ring body and opening, upper back-up ring face and the lower back-up ring face of back-up ring body (1) are frustro-pyramidal, the taper angle theta of place frustro-pyramidal is identical, taper angle theta angular region is 166 °-174 °, optimized angle is 170 °, and the utility model beneficial effect is: press-fit simple, pretension intensity is high, effectively prevents bearing pin play.
Description
Technical field
The utility model relates to a kind of bearing pin back-up ring, particularly relates to a kind of track pin shaft retaining ring.
Background technology
Because big machinery is comparatively large in the side force of turning or slope operating mode, in order to prevent bearing pin from scurrying out, need larger axial restraint power.Usual axial restraint power relies on the large interference fit of bearing pin to provide, and because coarse pitch pin shaft for lubricating track diameter is comparatively large, if adopt interference fit, needs very large pressure assembling force.This is higher to the requirement of press-loading device.Generally there is no this large press device, and not easy to operate during field maintenance yet.Therefore in order to reduce pressure, and need larger axial restraint power, the end part of pin shaft of crawler belt uses back-up ring to prevent the play of bearing pin.Current back-up ring is loose rib, and after installation, back-up ring and attachment face have certain interval, can not prevent bearing pin play completely.
Utility model content
The technical matters that the utility model solves is: loose rib press-loading device requires high, and uses the problem of loose rib bearing pin play.
The utility model for solving the problems of the technologies described above provided technical scheme is:
A kind of track pin shaft retaining ring comprises back-up ring body and opening, and upper back-up ring face and the lower back-up ring face of back-up ring body (1) are frustro-pyramidal, and the taper angle theta of place frustro-pyramidal is identical, and taper angle theta angular region is 166 °-174 °, and optimized angle is 170 °.
Back-up ring is pyramidal structure, extrudes pyramidal structure during installation, and cone height reduces, and produces axial elastic force.After installing, novel back-up ring provides axial pre tightening force, guarantees that bearing pin can not move axially.
The utility model beneficial effect is: the tapered and back-up ring inner ring face of back-up ring and face, outer ring circularly contact evenly with bearing pin for coaxial, press-fits simply, pretension intensity is high, effectively prevent bearing pin play.
Accompanying drawing explanation
Fig. 1 is track pin shaft retaining ring schematic diagram;
Fig. 2 is track pin shaft retaining ring planing surface figure;
Wherein, 1, back-up ring body, 2, opening.
Detailed description of the invention
With reference to accompanying drawing, in the utility model, track pin shaft retaining ring comprises back-up ring body 1 and opening 2, and back-up ring body 1 is positioned at same circular conical surface.In B-B planing surface, frustro-pyramidal structure is become after back-up ring is installed, when being 170 ° under the taper angle theta state of nature of frustro-pyramidal, the predetermincd tension produced is best with installation easness, extrude cone height h during installation to reduce, produce axial elastic force, back-up ring body 1 inner ring face becomes taper angle theta identical with face, outer ring, and after installing, novel back-up ring provides axial pre tightening force, even with bearing pin contact, guarantee that bearing pin can not move axially.
Claims (4)
1. a track pin shaft retaining ring, comprises back-up ring body (1) and opening (2), it is characterized in that the upper back-up ring face of back-up ring body (1) and lower back-up ring face are frustro-pyramidal.
2. a kind of track pin shaft retaining ring according to claim 1, is characterized in that, the upper back-up ring face of back-up ring body (1) is identical with the taper angle theta of place, lower back-up ring face frustro-pyramidal.
3. a kind of track pin shaft retaining ring according to claim 2, is characterized in that, described taper angle theta angular region is 166 °-174 °.
4. a kind of track pin shaft retaining ring according to claim 2, is characterized in that, described taper angle theta angle is 170 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702654.4U CN204173035U (en) | 2014-11-20 | 2014-11-20 | A kind of track pin shaft retaining ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702654.4U CN204173035U (en) | 2014-11-20 | 2014-11-20 | A kind of track pin shaft retaining ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204173035U true CN204173035U (en) | 2015-02-25 |
Family
ID=52561864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420702654.4U Active CN204173035U (en) | 2014-11-20 | 2014-11-20 | A kind of track pin shaft retaining ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204173035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843945A (en) * | 2019-11-26 | 2020-02-28 | 三一重机有限公司 | Caterpillar track unit, caterpillar track and excavator |
-
2014
- 2014-11-20 CN CN201420702654.4U patent/CN204173035U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843945A (en) * | 2019-11-26 | 2020-02-28 | 三一重机有限公司 | Caterpillar track unit, caterpillar track and excavator |
| CN110843945B (en) * | 2019-11-26 | 2021-05-28 | 三一重机有限公司 | Caterpillar track unit, caterpillar track and excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |