CN214930199U - Wedged track pin shaft anti-channeling structure - Google Patents
Wedged track pin shaft anti-channeling structure Download PDFInfo
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- CN214930199U CN214930199U CN202121196335.7U CN202121196335U CN214930199U CN 214930199 U CN214930199 U CN 214930199U CN 202121196335 U CN202121196335 U CN 202121196335U CN 214930199 U CN214930199 U CN 214930199U
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- pin shaft
- track section
- check ring
- caterpillar track
- pin
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Abstract
The utility model discloses a structure is prevented scurrying by wedging formula track round pin axle belongs to machine parts technical field, its characterized in that: the pin shaft is connected with the left caterpillar track section and the right caterpillar track section in an interference fit manner; the caterpillar track section check ring cavity and the pin shaft check ring cavity are enclosed to form an anti-channeling check ring cavity, and check rings are embedded in the anti-channeling check ring cavity through interference fit; the utility model has the advantages that: grooves are additionally formed in the pin shaft and the caterpillar track section, the retainer ring is plastically deformed and fills the cavity of the groove by pressing in the retainer ring, the elastic modulus of the retainer ring is increased under the action of extrusion force, the shearing resistance is increased, the pin shaft can be effectively prevented from moving, and the service life of the caterpillar track is prolonged; the anti-channeling effect is good, the phenomenon of pin shaft channeling is improved, and the service life of the crawler belt is obviously prolonged.
Description
The technical field is as follows:
the utility model belongs to the technical field of machine parts, more specifically relate to a structure is prevented scurrying by wedging formula track round pin axle.
Background art:
the crawler belt products occupy important positions in engineering machinery products, and no matter an excavator, a bulldozer, a down-the-hole drill and the like, the crawler belt products are adopted. The left and right caterpillar links in the caterpillar track assembly are in interference connection with caterpillar link pin holes through pin shafts, during assembly, the left and right caterpillar links are pressed into two ends of the pin shafts by theoretical press-fitting force, and the caterpillar links are kept not to move along the axial direction of the pin shafts in operation through the interference force;
however, with the use of the host in severe working conditions such as mines and the like, especially large-tonnage products, the caterpillar link still tends to move along the pin by the force generated in the operation process of the host. After the caterpillar link and the pin roll generate the play, the sealing cavity of the caterpillar is protected, the sealing failure is caused, the service life of the caterpillar is shortened, the caterpillar link and the pin roll move continuously, the pin roll can fall off, the caterpillar is disconnected, and the safety use of the main machine is seriously affected.
The utility model has the following contents:
in order to solve the problems and overcome the defects of the prior art, the utility model provides a wedged track pin anti-channeling structure;
the first technical problem to be solved is that: the caterpillar track is characterized in that the caterpillar track section still has a tendency of moving along the pin shaft due to the force generated by a large-tonnage product in the operation process of the main machine, and after the caterpillar track section and the pin shaft move, the sealing cavity of the caterpillar track is unprotected, so that sealing failure is caused, the service life of the caterpillar track is shortened, and the caterpillar track section and the pin shaft can continuously move, so that the pin shaft can fall off and the caterpillar track is disconnected;
the utility model provides a concrete technical scheme of above-mentioned technical problem does: wedging type track round pin axle anti-channeling structure, its characterized in that: the anti-channeling check ring comprises a left caterpillar track section, a right caterpillar track section, a pin sleeve, a pin shaft, a sealing assembly, an anti-channeling check ring cavity and a check ring; the pin shaft is connected with the left caterpillar track section and the right caterpillar track section in an interference fit manner;
caterpillar track section check ring cavities are formed in the outer sides of the pin ends on the two sides of the left caterpillar track section and the right caterpillar track section, pin shaft check ring cavities are formed in the side end faces on the two sides of the pin shaft, the caterpillar track section check ring cavities and the pin shaft check ring cavities enclose to form anti-channeling check ring cavities, and check rings are embedded in the anti-channeling check ring cavities in an interference fit mode; the retainer ring is arranged into a ring shape with an opening;
the caterpillar track section retainer ring cavity is formed by enclosing a connected side wall inclined plane I and a connected side wall inclined plane II, and the pin shaft retainer ring cavity is formed by enclosing a side wall inclined plane III, a side wall inclined plane IV, a side wall arc-shaped surface and a side wall inclined plane V which are sequentially connected.
Further, the angle of the side wall inclined plane I is set to be 40-50 degrees.
Further, the angle of the side wall inclined plane II is set to be 20-30 degrees.
Further, the angle of the side wall inclined plane V is set to be 20-30 degrees.
Furthermore, an arc-shaped surface structure is arranged on the side end surface of the check ring.
The utility model has the advantages that:
the device is additionally provided with the grooves on the pin shaft and the caterpillar track section, the retainer ring is plastically deformed and fills the cavity of the groove by pressing the retainer ring in, the elastic modulus of the retainer ring is increased under the action of extrusion force, the shearing resistance is increased, the pin shaft can be effectively prevented from moving, and the service life of the caterpillar track is prolonged;
the selection range is confirmed through a groove angle test, and the check ring is in a disconnected circular ring structure, so that the check ring can be completely extruded into and filled in the cavity of the groove; the structure has good anti-channeling effect, improves the phenomenon of pin shaft channeling and obviously prolongs the service life of the crawler.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the left and right caterpillar links of the present invention;
FIG. 3 is a schematic structural view of a retainer ring cavity of the caterpillar track section of the present invention;
FIG. 4 is a schematic view of the pin structure of the present invention;
FIG. 5 is a schematic view of the structure of the pin retainer ring cavity of the present invention;
FIG. 6 is a schematic view of the structure of the retainer ring of the present invention;
FIG. 7 is a schematic view of the arc structure of the retainer ring of the present invention;
FIG. 8 is a schematic structural view of the anti-channeling retainer ring cavity of the utility model; in the drawings:
1. a left caterpillar link; 2. a right track link; 3. a pin bush; 4. a pin shaft; 5. a seal assembly; 6. a retainer ring; 7. a anti-channeling check ring cavity; 11. a side wall inclined plane I; 12. a side wall inclined plane II; 13. a sidewall bevel III; 14. a side wall inclined plane IV; 15. a side wall arc-shaped surface; 16. a sidewall bevel V; 17. an arc-shaped surface structure; 18. and (4) opening.
The specific implementation mode is as follows:
in describing the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model discloses a concrete implementation mode: wedging type track round pin axle anti-channeling structure, its characterized in that: the anti-channeling check ring comprises a left caterpillar track section 1, a right caterpillar track section 2, a pin sleeve 3, a pin shaft 4, a sealing assembly 5, an anti-channeling check ring cavity 7 and a check ring 6; the pin shaft 4 is connected with the left caterpillar track section 1 and the right caterpillar track section 2 in an interference fit manner;
caterpillar track section check ring cavities are formed in the outer sides of the pin ends on the two sides of the left caterpillar track section 1 and the right caterpillar track section 2, pin shaft check ring cavities are formed in the side end faces on the two sides of the pin shaft 4, the caterpillar track section check ring cavities and the pin shaft check ring cavities are enclosed to form anti-channeling check ring cavities 7, and check rings 6 are embedded in the anti-channeling check ring cavities 7 in an interference fit mode; the retainer ring 6 is arranged in a ring shape with an opening 18;
the caterpillar link check ring cavity is formed by enclosing a side wall inclined surface I11 and a side wall inclined surface II 12 which are connected, and the pin shaft check ring cavity is formed by enclosing a side wall inclined surface III 13, a side wall inclined surface IV 14, a side wall arc-shaped surface 15 and a side wall inclined surface V16 which are sequentially connected.
Further, the angle of the side wall inclined plane I11 is set to be 40-50 degrees.
Further, the angle of the side wall inclined plane II 12 is set to be 20-30 degrees.
Further, the angle of the side wall inclined surface V16 is set to be 20-30 degrees.
Further, an arc-shaped surface structure 17 is arranged on the side end surface of the retainer ring 6.
It should be noted that the utility model relates to a wedged track pin anti-channeling structure, when in specific work,
during assembly, the pin bush 3 and the pin shaft 4 are pressed into the left caterpillar track section 1 and the right caterpillar track section 2, the retainer ring 6 is pressed into the retainer ring cavity 7 for preventing the movement of the two ends of the caterpillar track assembly through a special tool after press fitting is completed, an axial force is applied to the retainer ring, the force is enough to press the retainer ring into the groove of the pin shaft, and the permanent deformation is kept to form the movement-preventing device between the pin shaft and the caterpillar track section, so that the retainer ring 6 is subjected to plastic deformation and is completely filled with the movement-preventing retainer ring cavity 7, under the extrusion action, the elastic modulus of the retainer ring is increased, larger shearing force can be resisted, and the permanent plastic deformation is kept to form the movement-preventing device between the pin shaft and the caterpillar track section. The anti-channeling capacity of the pin shaft is greatly improved, and the service life of the crawler belt is obviously prolonged;
the two inclined planes of the pressing-in inclined plane of the caterpillar track section retainer ring cavity and the pin shaft retainer ring cavity adopt matched special angles, which is beneficial to wedging the retainer ring.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a structure is scurried to formula track round pin axle of wedging, its characterized in that: the anti-channeling anti; the pin shaft (4) is connected with the left caterpillar track section (1) and the right caterpillar track section (2) in an interference fit manner;
the pin end outer sides of two sides of the left caterpillar track section (1) and the right caterpillar track section (2) are respectively provided with a caterpillar track section check ring cavity, the side end faces of two sides of the pin shaft (4) are respectively provided with a pin shaft check ring cavity, the caterpillar track section check ring cavity and the pin shaft check ring cavity are enclosed to form a flee-proof check ring cavity (7), and check rings (6) are embedded in the flee-proof check ring cavity (7) in an interference fit manner; the retainer ring (6) is arranged in a ring shape with an opening (18);
the caterpillar link check ring cavity is formed by enclosing a side wall inclined plane I (11) and a side wall inclined plane II (12) which are connected, and the pin shaft check ring cavity is formed by enclosing a side wall inclined plane III (13), a side wall inclined plane IV (14), a side wall arc-shaped surface (15) and a side wall inclined plane V (16) which are connected in sequence.
2. The wedged track pin anti-tamper structure according to claim 1, wherein the angle of the sidewall slope i (11) is set to 40-50 °.
3. The wedged track pin anti-channeling structure according to claim 2, wherein the angle of the sidewall slope ii (12) is set to 20-30 °.
4. The wedged track pin tamper-resistant structure according to claim 2, wherein the angle of the sidewall slope v (16) is set at 20-30 °.
5. The wedged track pin anti-channeling structure according to claim 1, characterized in that an arc-shaped surface structure (17) is arranged on the side end surface of the retainer ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121196335.7U CN214930199U (en) | 2021-05-31 | 2021-05-31 | Wedged track pin shaft anti-channeling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121196335.7U CN214930199U (en) | 2021-05-31 | 2021-05-31 | Wedged track pin shaft anti-channeling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214930199U true CN214930199U (en) | 2021-11-30 |
Family
ID=79057000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121196335.7U Active CN214930199U (en) | 2021-05-31 | 2021-05-31 | Wedged track pin shaft anti-channeling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214930199U (en) |
-
2021
- 2021-05-31 CN CN202121196335.7U patent/CN214930199U/en active Active
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