CN202926906U - Stamping-free sealing type universal joint assembly for transmission shaft of engineering excavator - Google Patents
Stamping-free sealing type universal joint assembly for transmission shaft of engineering excavator Download PDFInfo
- Publication number
- CN202926906U CN202926906U CN 201220630618 CN201220630618U CN202926906U CN 202926906 U CN202926906 U CN 202926906U CN 201220630618 CN201220630618 CN 201220630618 CN 201220630618 U CN201220630618 U CN 201220630618U CN 202926906 U CN202926906 U CN 202926906U
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- shaft
- joint assembly
- universal joint
- stamping
- sealing
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Abstract
The utility model relates to universal joints and particularly relates to a stamping-free sealing type universal joint assembly for a transmission shaft of an engineering excavator. The stamping-free sealing type universal joint assembly is mainly used for solving the technical problems in the prior art that the process step is relatively complicated, the sealing effect is poorer, and the like caused due to the fact that oil seals of a universal joint are of built-in types and are generally required for being stamped in shaft sleeves. The stamping-free sealing type universal joint assembly comprises a cross shaft body (1) and is characterized in that four shaft sleeves (2) are respectively sleeved on four shaft bodies of the cross shaft body (1), rolling needles (3) are arranged in the shaft sleeves, steps are arranged at root parts of the shaft bodies of the cross shaft body, sealing members (4) are arranged between the steps and the inner end faces of the shaft sleeves, shaft bowls (5) are arranged on the external surfaces of the shaft sleeves, and the inner ends of the shaft bowls are clamped at the sealing members.
Description
Technical field
The utility model relates to a kind of universal joint, especially relates to a kind of punching press sealed type engineering excavation machine shaft universal-joint assembly of exempting from.
Background technique
Universal-joint cross trunnion of the prior art general all forms by middle axis body and with arm that middle axis body links into an integrated entity.Chinese patent discloses a kind of high-strength universal joint (notice of authorization number: CN 2464984Y), it comprises cross axle and is arranged on the needle roller around the cross axle spindle nose and puts and outer ring that needle roller is outer, the end of outer ring is provided with packing holder, is provided with seal ring skeleton and seal placed on it on described packing holder; And the inboard of described seal is provided with tilting outer lip and inside middle lip and the inner lip of lip successively, and three lips contact with the axle journal of cross axle; Tiltedly be provided with the grinding undercut of annular between internal face and needle roller end face ring, and the needle roller end face ring is in the same plane with the cross axle spindle nose end face that is placed in the needle roller inboard, the inboard of needle roller end face ring is provided with the pad chamber, it is built-in with glass nylon Composition spacer, and the exterior edge face of Composition spacer flushes substantially with described needle roller end face ring; The center line of grinding undercut and bottom plane, outer ring are 35 °～55 ° angles, and its degree of depth is 0.25～0.6mm, and the end is the circular arc ring that radius is 0.3～5.Omm.But the oil sealing of this universal joint is internally-arranged type, generally need to be with its punching press in axle sleeve, and operation is comparatively complicated, and sealing effect is relatively poor.
The model utility content
The utility model is to provide a kind of punching press sealed type engineering excavation machine shaft universal-joint assembly of exempting from, it is mainly that the oil sealing of the existing universal joint of solution prior art is internally-arranged type, generally need to be with its punching press in axle sleeve, operation is comparatively complicated, and relatively poor etc. the technical problem of sealing effect.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
The punching press sealed type engineering excavation machine shaft universal-joint assembly of exempting from of the present utility model, comprise the cross axle body, be socketed with respectively an axle sleeve on four axis bodies of described cross axle body, be provided with needle roller in axle sleeve, the axis body root of cross axle body is provided with step, be provided with Sealing between step and axle sleeve interior edge face, the outer surface of axle sleeve is provided with the axle bowl, and axle bowl the inner is stuck in the Sealing place.Oil sealing between axle sleeve and cross axle body, axle bowl are all externally-arranged type, like this can be in order to avoid punching press, and manufacturing process is comparatively simple, and sealing effect is better.
As preferably, the section of described Sealing is " 7 " font.A sealing lip of Sealing is overlapped on the axis body root of cross axle body, and another sealing lip is overlapped on the axle sleeve inboard.
As preferably, the inner bottom surface of described axle sleeve is provided with oil duct.Fluid can be marked with in oil duct, lubricated effect can be played.
As preferably, described cross axle body is provided with oil nozzle, can inject fluid in universal joint assembly by oil nozzle.
Therefore, oil sealing of the present utility model and axle bowl are externally-arranged type, all exempt from punching press, can play good sealing effect, exceed 3-5 doubly than the sealing effect of similar conventional products, and be simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is A section structure for amplifying schematic diagram of Fig. 1.
Component, position and numbering in figure: cross axle body 1, axle sleeve 2, needle roller 3, Sealing 4, axle bowl 5, oil duct 6, oil nozzle 7.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the punching press sealed type engineering excavation machine of the exempting from shaft universal-joint assembly of this example, as Fig. 1, comprise cross axle body 1, be socketed with respectively an axle sleeve 2 on four axis bodies of cross axle body, be provided with needle roller 3 in axle sleeve, the axis body root of cross axle body is provided with step, as Fig. 2, be provided with Sealing 4 between step and axle sleeve interior edge face, the outer surface of axle sleeve is provided with axle bowl 5, and axle bowl the inner is stuck in the Sealing place.The section of Sealing is " 7 " font.The inner bottom surface of axle sleeve is provided with oil duct 6.The cross axle body is provided with oil nozzle 7.
During use, the utility model is packed into to be got final product in the engineering excavation machine.
The above is only specific embodiment of the utility model, but structure characteristic of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the scope of the claims of the present utility model.
Claims (4)
1. exempt from punching press sealed type engineering excavation machine shaft universal-joint assembly for one kind, comprise cross axle body (1), it is characterized in that being socketed with respectively an axle sleeve (2) on four axis bodies of described cross axle body (1), be provided with needle roller (3) in axle sleeve, the axis body root of cross axle body is provided with step, be provided with Sealing (4) between step and axle sleeve interior edge face, the outer surface of axle sleeve is provided with axle bowl (5), and axle bowl the inner is stuck in the Sealing place.
2. the punching press sealed type engineering excavation machine shaft universal-joint assembly of exempting from according to claim 1, is characterized in that the section of described Sealing (4) is " 7 " font.
3. the punching press sealed type engineering excavation machine shaft universal-joint assembly of exempting from according to claim 1 and 2, is characterized in that the inner bottom surface of described axle sleeve (2) is provided with oil duct (6).
4. the punching press sealed type engineering excavation machine shaft universal-joint assembly of exempting from according to claim 1 and 2, is characterized in that described cross axle body (1) is provided with oil nozzle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220630618 CN202926906U (en) | 2012-11-26 | 2012-11-26 | Stamping-free sealing type universal joint assembly for transmission shaft of engineering excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220630618 CN202926906U (en) | 2012-11-26 | 2012-11-26 | Stamping-free sealing type universal joint assembly for transmission shaft of engineering excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926906U true CN202926906U (en) | 2013-05-08 |
Family
ID=48216868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220630618 Expired - Fee Related CN202926906U (en) | 2012-11-26 | 2012-11-26 | Stamping-free sealing type universal joint assembly for transmission shaft of engineering excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926906U (en) |
-
2012
- 2012-11-26 CN CN 201220630618 patent/CN202926906U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20181126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |