CN219119553U - Anti-loosening structure for connection of piston rod and earring of hydraulic cylinder - Google Patents
Anti-loosening structure for connection of piston rod and earring of hydraulic cylinder Download PDFInfo
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- CN219119553U CN219119553U CN202222510058.3U CN202222510058U CN219119553U CN 219119553 U CN219119553 U CN 219119553U CN 202222510058 U CN202222510058 U CN 202222510058U CN 219119553 U CN219119553 U CN 219119553U
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- piston rod
- hydraulic cylinder
- earring
- loosening
- plane
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Abstract
The anti-loosening structure for connecting the piston rod of the hydraulic cylinder with the earring belongs to general machinery; the lug ring is screwed and tightly assembled on the outer end of the piston rod of the hydraulic cylinder through threaded connection, a plane groove is transversely formed in the circumferential surface of the outer end of the piston rod of the hydraulic cylinder, a through hole is transversely formed in the annular wall of the lug ring, a plane anti-loosening pin shaft is arranged on the surface of the cylinder and is inserted and matched in the through hole of the lug ring, and the plane on the anti-loosening pin shaft is in relatively tight contact circumferential locking fit with a plane groove on the outer end of the piston rod of the hydraulic cylinder; the structure effectively prevents the relative rotation between the oil cylinder rod of the hydraulic oil cylinder and the earrings in the circumferential direction, and has good anti-loosening effect, reliable use, high safety and strong universality.
Description
Technical Field
The utility model belongs to general machinery and mainly relates to a part connecting structure.
Background
At present, after a piston rod of a hydraulic oil cylinder and an earring are connected together through screw thread structure in a screwing mode, a backup locknut (commonly called backup nut) is adopted to lock and fix the piston rod of the hydraulic oil cylinder and the earring. However, in actual operation, due to various reasons such as shaking and vibration of mechanical equipment, a piston rod of the hydraulic oil cylinder rotates, so that a backup locknut is loosened, locking invalidation occurs, and even mechanical failure occurs. Therefore, how to avoid and eliminate the relative rotation between the piston rod of the hydraulic cylinder and the earring is a technical problem that must be solved.
Disclosure of Invention
The utility model aims at solving the problems in the prior art, combines the actual requirements of mechanical equipment, develops and designs a novel anti-loosening structure for connecting a piston rod of a hydraulic cylinder with an earring, and achieves the purposes of good locking, positioning and anti-loosening effects, reliable operation and use and fault elimination.
The basic design of the utility model is as follows: the anti-loosening structure comprises a hydraulic cylinder piston rod and an earring, wherein the earring is tightly assembled on the outer end of the hydraulic cylinder piston rod through threaded connection, a plane groove is transversely formed in the circumferential surface of the outer end of the hydraulic cylinder piston rod, a through hole is transversely formed in the wall of the earring, a planar anti-loosening pin shaft is arranged on the surface of a cylinder and detachably and fixedly arranged in the through hole which is inserted on the earring, and a plane on the anti-loosening pin shaft is in relatively tight contact with the plane groove on the outer end of the hydraulic cylinder piston rod in a circumferential locking fit.
According to the utility model, the anti-loosening pin shaft is inserted into the transverse through hole on the earring, and the circumferential locking fit between the piston rod of the hydraulic cylinder and the earring is realized through the relatively close contact between the plane on the anti-loosening pin shaft and the plane groove on the piston rod of the hydraulic cylinder, so that the possible rotation of the piston rod of the hydraulic cylinder during the operation of mechanical equipment is avoided, the occurrence of faults is eliminated, and the anti-loosening device has the characteristics of novel, reasonable and simple structure, good locking and anti-loosening effects, reliability in use, high safety and strong universality.
Drawings
FIG. 1 is an assembly schematic diagram of a hydraulic cylinder piston rod and earring connection anti-loosening structure;
fig. 2 is a schematic diagram of the piston rod structure of the hydraulic cylinder
FIG. 3 is a schematic view of the structure of an earring;
FIG. 4 is a schematic view of a structure of a locking pin;
fig. 5 is a two-dimensional cross-sectional view of a locking structure for connecting a piston rod of a hydraulic cylinder with an earring.
Part number description in the drawings:
1. the hydraulic cylinder piston rod, 2, earrings, 3 and the anti-loosening pin shaft.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. The utility model provides a hydraulic cylinder piston rod and earring are connected locking structure, includes hydraulic cylinder piston rod 1 and earring 2, earring 2 is screwed through threaded connection and is joined in marriage and install on the outer end of hydraulic cylinder piston rod 1 the horizontal plane recess that sets up on the outer end circumference surface of hydraulic cylinder piston rod 1 be equipped with the through-hole along horizontal on the earring 2 rampart, be equipped with on the cylinder surface that planar locking moves round pin axle 3 detachable, the installation insert and join in marriage in the through-hole on earring 2, the epaxial plane of locking moving round pin is relative close contact circumference locking cooperation with the plane recess on the outer end of hydraulic cylinder piston rod 1.
When the anti-loosening device is used, the anti-loosening pin shaft 3 transversely inserted in the through hole of the earring 2 is in close contact circumferential locking fit with the plane groove transversely arranged on the outer end of the hydraulic cylinder piston rod 1, so that the hydraulic cylinder piston rod 1 and the earring 2 cannot rotate relatively, and a good anti-loosening technical effect is achieved.
Claims (1)
1. The utility model provides a hydraulic cylinder piston rod and earring are connected locking structure, includes hydraulic cylinder piston rod (1) and earring (2), earring (2) are screwed on the outer end of hydraulic cylinder piston rod (1) through threaded connection tight fit, its characterized in that: the anti-loosening device is characterized in that a plane groove is transversely formed in the circumferential surface of the outer end of the piston rod (1) of the hydraulic cylinder, a through hole is transversely formed in the annular wall of the earring (2), a plane anti-loosening pin roll (3) is detachably and fixedly arranged on the surface of the cylinder and is inserted into the through hole of the earring (2), and the plane on the anti-loosening pin roll (3) is in relatively close contact circumferential locking fit with the plane groove on the outer end of the piston rod (1) of the hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222510058.3U CN219119553U (en) | 2022-09-15 | 2022-09-15 | Anti-loosening structure for connection of piston rod and earring of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222510058.3U CN219119553U (en) | 2022-09-15 | 2022-09-15 | Anti-loosening structure for connection of piston rod and earring of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219119553U true CN219119553U (en) | 2023-06-02 |
Family
ID=86532339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222510058.3U Active CN219119553U (en) | 2022-09-15 | 2022-09-15 | Anti-loosening structure for connection of piston rod and earring of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219119553U (en) |
-
2022
- 2022-09-15 CN CN202222510058.3U patent/CN219119553U/en active Active
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| GR01 | Patent grant | ||
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