CN216922691U - RC type plunger - Google Patents
RC type plunger Download PDFInfo
- Publication number
- CN216922691U CN216922691U CN202123417302.3U CN202123417302U CN216922691U CN 216922691 U CN216922691 U CN 216922691U CN 202123417302 U CN202123417302 U CN 202123417302U CN 216922691 U CN216922691 U CN 216922691U
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- CN
- China
- Prior art keywords
- taper sleeve
- sleeve
- plunger
- outer taper
- seal groove
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Abstract
The utility model provides an RC type plunger, which can solve the technical problems that the existing plunger is easy to cause unbalance loading and fracture under the condition of overload, and the product is seriously cracked and dangerous. The utility model provides a seal groove has been seted up to RC type plunger, the tip of plunger, and the seal groove is embedded to be equipped with sealing washer, its characterized in that: the plunger is externally provided with an inner taper sleeve in an interference fit manner, one end of the inner taper sleeve is abutted against the side wall of the sealing groove, an outer taper sleeve is arranged outside the inner taper sleeve, the inner taper sleeve and the outer taper sleeve are in conical surface fit, the end part of the outer taper sleeve is tightly pressed against the outer taper sleeve through a locking nut, a supporting sleeve is fixedly adhered outside the outer taper sleeve, the outer taper sleeve and the supporting sleeve are elastic sleeves, and the side surface of the supporting sleeve is provided with a hard guide strip distributed along the ring shape.
Description
Technical Field
The utility model relates to the technical field of hydraulic oil cylinders, in particular to a plunger of a hydraulic oil cylinder, and specifically relates to an RC type plunger.
Background
The hydraulic cylinder comprises a cylinder body and a plunger, wherein the plunger leans against a sealing ring and is matched with the inner diameter of the cylinder body in the outer diameter, so that the plunger is guided, and easily causes unbalance loading and breakage under the condition of bearing overload, and seriously causes product explosion and danger thereof.
SUMMERY OF THE UTILITY MODEL
The utility model provides an RC type plunger, which can solve the technical problems that the existing plunger is easy to cause unbalance loading and fracture under the condition of overload, and the product is seriously cracked and dangerous.
Its technical scheme is such, a RC type plunger, the seal groove has been seted up to the tip of plunger, the embedded sealing washer that is equipped with of seal groove, its characterized in that: the plunger outer interference mounting has interior taper sleeve, the one end of interior taper sleeve with the lateral wall of seal groove supports and leans on, interior taper sleeve is equipped with outer taper sleeve outward, interior taper sleeve with outer taper sleeve passes through conical surface cooperation, outer taper sleeve tip is tight through lock nut top, the outer adhesion of outer taper sleeve is fixed with supports the cover, outer taper sleeve with support the cover and be elastic sleeve, the side of supporting the cover is equipped with along the stereoplasm gib block of annular distribution.
Further, the guide strip protrudes out of the side surface of the support sleeve.
Further, the locking nuts are provided with a pair.
Furthermore, the hard guide strip is a copper strip.
According to the RC-type plunger disclosed by the utility model, the guide sleeve member formed by the support sleeve and the hard guide strip can absorb unbalance loading, an oil cylinder is protected from being abraded in the working process, the service life is prolonged, and the problems of excessive extension or piston falling and upper end deformation due to blockage and the like can be solved, so that long-time fault-free working can be ensured; after the hard guide strip is worn, the supporting sleeve synchronously expands outwards by moving and expanding the taper sleeve outwards, the hard guide strip is contacted with the inner wall of the cylinder body again, good guidance is ensured, and the service life is further prolonged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in figure 1, in the RC type plunger, a sealing groove 2 is arranged at the end part of a plunger 1, a sealing ring 8 is embedded in the sealing groove 2, an inner taper sleeve 3 is arranged outside the plunger 1 in an interference fit manner, one end of the inner taper sleeve 3 is abutted against the side wall of the sealing groove 2, an outer taper sleeve 4 is arranged outside the inner taper sleeve 3, the inner taper sleeve 3 is matched with the outer taper sleeve 4 through a taper surface, the end part of the outer taper sleeve 4 is tightly pressed through a locking nut 6, the locking nuts 6 are provided with a pair, in order to prevent that the nut from becoming flexible, outer taper sleeve 4 outer adhesion is fixed with supports cover 5, and interior taper sleeve 3 is the stereoplasm sleeve, and outer taper sleeve 4 and support cover 5 are elastic sleeve, preferably, support cover 5 and pack into the cylinder body after the compression, support the side of cover and be equipped with along annular distribution's stereoplasm gib block 7, stereoplasm gib block 7 is the copper bar, has good self-lubricating effect, and under the cooperation of hydraulic oil, wearing and tearing are extremely low, gib block 7 salient in the side of supporting cover 5.
Claims (4)
1. The utility model provides a RC type plunger, the seal groove has been seted up to the tip of plunger, the embedded sealing washer that is equipped with of seal groove, its characterized in that: the plunger outer interference mounting has interior taper sleeve, the one end of interior taper sleeve with the lateral wall of seal groove supports and leans on, interior taper sleeve is equipped with outer taper sleeve outward, interior taper sleeve with outer taper sleeve passes through conical surface cooperation, outer taper sleeve tip is tight through lock nut top, the outer adhesion of outer taper sleeve is fixed with supports the cover, outer taper sleeve with support the cover and be elastic sleeve, the side of supporting the cover is equipped with along the stereoplasm gib block of annular distribution.
2. An RC-type plunger as claimed in claim 1, wherein: the guide strip protrudes out of the side surface of the support sleeve.
3. An RC-type plunger as claimed in claim 2, wherein: the locking nuts are provided with a pair.
4. An RC-type plunger as claimed in claim 3, wherein: the hard guide strip is a copper strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123417302.3U CN216922691U (en) | 2021-12-31 | 2021-12-31 | RC type plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123417302.3U CN216922691U (en) | 2021-12-31 | 2021-12-31 | RC type plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216922691U true CN216922691U (en) | 2022-07-08 |
Family
ID=82257308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123417302.3U Active CN216922691U (en) | 2021-12-31 | 2021-12-31 | RC type plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216922691U (en) |
-
2021
- 2021-12-31 CN CN202123417302.3U patent/CN216922691U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |