CN114017419B - Novel oil cylinder piston rod end connection structure - Google Patents
Novel oil cylinder piston rod end connection structure Download PDFInfo
- Publication number
- CN114017419B CN114017419B CN202111405816.9A CN202111405816A CN114017419B CN 114017419 B CN114017419 B CN 114017419B CN 202111405816 A CN202111405816 A CN 202111405816A CN 114017419 B CN114017419 B CN 114017419B
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- Prior art keywords
- piston rod
- locking ring
- annular groove
- ring
- inner hole
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- 238000007789 sealing Methods 0.000 claims abstract description 54
- 238000009434 installation Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
- F15B15/1442—End cap sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1471—Guiding means other than in the end cap
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a novel connecting structure of a piston rod end of an oil cylinder, which comprises a cylinder barrel, a lock nut, a piston rod, a guide sleeve lock nut, a guide bushing, a first sealing element, a second sealing element, a third sealing element, a fourth sealing element and a fifth sealing element, wherein the right end of the piston rod is rotationally connected with a connecting earring, a first inner hole, a second annular groove, a third inner hole and a mounting groove are sequentially arranged in the connecting earring, the right end of the piston rod is provided with the first annular groove, an inner locking ring is arranged between the first annular groove and the second inner hole, a locking ring is arranged in the second annular groove, a retaining ring is arranged on the inner side of the locking ring, a hole circlip is arranged on the left side of the retaining ring, an annular duct is arranged at the right end of the connecting earring, and a joint bearing is arranged in the annular duct. The invention has the advantages of convenient and quick replacement and sealing, convenient and flexible installation, improved production efficiency and reduced labor intensity.
Description
Technical Field
The invention relates to the technical field of oil cylinders, in particular to a novel oil cylinder piston rod end connection structure.
Background
In the construction process of the existing water well drilling machine, when the sealing of the thrust cylinder fails, the sealing element in the cylinder needs to be replaced. As shown in fig. 11, the oil cylinder in the prior art comprises a cylinder barrel 1, a piston rod 4 is arranged in the cylinder barrel 1, a piston 3 is arranged at the left end of the piston rod 4, a lock nut 2 is arranged at the left side of the piston 3, a guide sleeve 5 is arranged on the piston rod 4, a guide bushing 8, a second sealing element 10, a fourth sealing element 12 and a fifth sealing element 13 are arranged at the contact position between the inner side of the guide sleeve 5 and the piston rod 4, a first sealing element 9 and a third sealing element 11 are arranged at the contact position between the outer side of the guide sleeve 5 and the inner wall of the cylinder barrel 1, a guide sleeve lock nut 6 is arranged at the right end of the cylinder barrel 1, an earring is fixedly connected with the right end of the piston rod 4, and a joint bearing 7 is arranged at the center of the earring; due to the heavy thrust cylinder and the structural limitation of the existing cylinder piston rod, when the guide bush 8, the first sealing element 9, the second sealing element 10, the third sealing element 11, the fourth sealing element 12 and the fifth sealing element 13 are damaged and need to be replaced, the guide sleeve lock nut 6 needs to be detached from the cylinder barrel 1, then the other parts are pulled out, the lock nut 2 and the piston 3 are detached, the guide sleeve 5, the guide bush 8, the first sealing element 9, the second sealing element 10, the third sealing element 11, the fourth sealing element 12, the fifth sealing element 13 and the like are detached from the lower end of the piston rod 4, and after damaged parts are replaced, the reverse assembly is completed, and because most of field operation in construction, the environment is poor and auxiliary hoisting tools are lack, the replacement of one set of sealing tool needs to be completed only by a plurality of persons for a long time, and when the piston rod end is assembled with a connecting seat, the joint bearing 7 is needed, the angle of the earrings of the piston rod end is often adjusted, so that the convenience of the installation is greatly discounted, the labor intensity of workers is greatly increased, the complexity of the operation is reduced, the production efficiency is reduced, the time and the labor and the cost are increased, and the material resources are wasted are increased.
Disclosure of Invention
The invention aims to provide a novel oil cylinder piston rod end connecting structure, which solves the problems that the traditional connecting structure is difficult to maintain and replace a piston rod end seal and the piston rod end and a connecting seat are difficult to assemble.
In order to solve the technical problems, the invention adopts the following technical scheme:
The invention discloses a novel oil cylinder piston rod end connecting structure which comprises a cylinder barrel, a lock nut, a piston rod, a guide sleeve lock nut, a guide bushing, a first sealing element, a second sealing element, a third sealing element, a fourth sealing element and a fifth sealing element, wherein the right end of the piston rod is rotationally connected with a connecting lug, a first inner hole, a second annular groove, a third inner hole and a mounting groove are sequentially arranged in the connecting lug, the right end of the piston rod is provided with the first annular groove, the right end of the piston rod is matched with the first inner hole, an inner locking ring is arranged between the first annular groove and the second inner hole, a locking ring is arranged in the second annular groove, the inner side of the locking ring is provided with a baffle ring, the right end of the baffle ring is matched with the inner hole of the locking ring, the left end of the baffle ring is matched with the third inner hole, the left side of the baffle ring is provided with a hole elastic retainer ring, the hole is matched with the mounting groove, the right end of the connecting lug is provided with a right annular groove, and a joint hole channel is formed in the connecting ring.
Further, a third annular groove for disassembly is formed in one side, close to the cylinder barrel, of the locking ring, and the locking ring is evenly divided into a plurality of locking ring bodies.
Still further, the outside in second annular groove is provided with the dismouting hole, the quantity of dismouting hole with the quantity of catch body is the same, the position in dismouting hole with the position one-to-one of catch body.
Still further, the baffle ring is provided with the screw on the side that is close to the cylinder.
Still further, the external diameter of internal lock ring with the cooperation of second hole, the internal diameter of internal lock ring with first annular groove cooperation, internal lock ring evenly cuts apart into a plurality of internal lock ring bodies.
Compared with the prior art, the invention has the beneficial technical effects that:
The invention relates to a novel connecting structure of a piston rod end of an oil cylinder, which comprises a cylinder barrel, a lock nut, a piston rod, a guide sleeve lock nut, a guide bushing, a first sealing element, a second sealing element, a third sealing element, a fourth sealing element and a fifth sealing element, wherein the right end of the piston rod is rotationally connected with a connecting earring, a first inner hole, a second annular groove, a third inner hole and an installation groove are sequentially arranged in the connecting earring, the right end of the piston rod is provided with a first annular groove, the right end of the piston rod is matched with the first inner hole, an inner locking ring is arranged between the first annular groove and the second inner hole, a locking ring is arranged in the second annular groove, a baffle ring is arranged on the inner side of the locking ring, the right end of the baffle ring is matched with the inner hole of the locking ring, the left end of the baffle ring is matched with the third inner hole, an elastic retainer ring for holes is arranged on the left side of the baffle ring, the elastic retainer ring for holes is matched with the mounting groove, an annular duct is arranged at the right end of the connecting earring, and a joint bearing is arranged inside the annular duct; the invention provides a novel oil cylinder piston rod end connecting structure, which solves the problems that the traditional connecting structure is difficult to maintain and replace a piston rod end seal and the pin shaft is difficult to install, and achieves the effects of convenient and quick replacement seal, convenient and flexible installation, production efficiency improvement and labor intensity reduction.
Drawings
The invention is further described with reference to the following description of the drawings.
FIG. 1 is a schematic diagram of a novel cylinder rod end connection structure;
FIG. 2 is a schematic diagram of a novel cylinder rod end connection structure without a connecting lug;
FIG. 3 is a schematic cross-sectional view of a connecting ear ring of the present invention;
FIG. 4 is a schematic view of the structure of the connecting ear ring of the present invention;
FIG. 5 is a schematic cross-sectional view of the locking ring of the present invention;
FIG. 6 is a schematic side view of the locking ring of the present invention;
FIG. 7 is a schematic cross-sectional view of a retaining ring according to the present invention;
FIG. 8 is a schematic side view of a retainer ring according to the present invention;
FIG. 9 is a schematic cross-sectional view of an internal locking ring of the present invention;
FIG. 10 is a schematic side view of an internal locking ring of the present invention;
FIG. 11 is a schematic view of a piston rod structure of a prior art cylinder;
Reference numerals illustrate: 1. a cylinder; 2. locking a nut; 3. a piston; 4. a piston rod; 5. a guide sleeve; 6. a guide sleeve lock nut; 7. a knuckle bearing; 8. a guide bushing; 9. a first seal; 10. a second seal; 11. a third seal; 12. a fourth seal; 13. a fifth seal; 14. circlips for holes; 15. a connecting earring; 16. a locking ring; 17. a baffle ring; 18. an inner lock ring; 401. a first annular groove; 1501. a ring-shaped duct; 1502. a first bore; 1503. a second bore; 1504. a second annular groove; 1505. a third bore; 1506. a mounting groove; 1507. a mounting and dismounting hole; 1601. a third annular groove; 1602. a lock ring body; 1701. a screw hole; 1801. an inner lock ring body.
Detailed Description
As shown in fig. 1-10, a novel cylinder piston rod end connection structure comprises a cylinder barrel 1, a lock nut 2, a piston 3, a piston rod 4, a guide sleeve 5, a guide sleeve lock nut 6, a guide bushing 8, a first sealing element 9, a second sealing element 10, a third sealing element 11, a fourth sealing element 12 and a fifth sealing element 13, wherein the right end of the piston rod 4 is rotationally connected with a connecting ear 15, a first inner hole 1502, a second inner hole 1503, a second annular groove 1504, a third inner hole 1505 and a mounting groove 1506 are sequentially arranged in the connecting ear 15, the right end of the piston rod 4 is provided with a first annular groove 401, the right end of the piston rod 4 is matched with the first inner hole 1502, an inner locking ring 18 is arranged between the first annular groove 401 and the second inner hole 1503, a locking ring 16 is arranged in the second annular groove 1504, the inner side of the second annular groove 16 is provided with a stop ring 17, the right end of the stop ring 17 is matched with the inner hole of the locking ring 16, the left end of the stop ring 17 is matched with the inner hole 1501, the right end of the stop ring 17 is provided with the mounting groove 15, the right end of the stop ring is matched with the mounting groove 15 is provided with the mounting groove 14, and the right end of the mounting groove 15 is provided with a right annular groove 15; in the invention, the right end surface of the piston rod 4 is contacted with the end surface of the first inner hole 1502 of the connecting ear 15, so as to limit the axial left movement of the connecting ear 15, the annular part on the inner side of the inner locking ring 18 is matched with the first annular groove 401 on the right end of the piston rod 4, the left side of the annular part on the outer side of the inner locking ring 18 is contacted with the right side of the annular part of the locking ring 16, the annular part on the outer side of the locking ring 16 is arranged in the second annular groove 1504 of the connecting ear 15, the outer side of the baffle ring 17 is respectively matched and contacted with the third inner hole 1505 of the connecting ear 15 and the inner hole of the locking ring 16, the radial movement of the locking ring 16 is limited, the axial movement of the baffle ring 17 is limited by the elastic retainer ring 14 for holes, the mutual limitation of the above parts ensures the reliable axial connection between the piston rod 4 and the connecting ear 15, and the piston rod 4 can mutually rotate, and the installation of an ear connecting shaft is convenient; the invention provides a novel oil cylinder piston rod end connecting structure, which solves the problems that the traditional connecting structure is difficult to maintain and replace a piston rod end seal and the pin shaft is difficult to install, and achieves the effects of convenient and quick replacement seal, convenient and flexible installation, production efficiency improvement and labor intensity reduction.
Specifically, as shown in fig. 5 and 6, a third annular groove 1601 for disassembly is provided on the side of the lock ring 16 near the cylinder tube 1, and the lock ring 16 is uniformly divided into a plurality of lock ring bodies 1602; in this embodiment, the number of lock ring bodies 1602 is four, and the lock ring bodies can be divided according to the needs in the actual use process.
As shown in fig. 7 and 8, the outer side of the second annular groove 1504 is provided with dismounting holes 1507, the number of the dismounting holes 1507 is the same as the number of the locking ring bodies 1602, and the positions of the dismounting holes 1507 are in one-to-one correspondence with the positions of the locking ring bodies 1602; the removal hole 1507 is aligned with the middle position of the lock ring body 1602 and the lock ring 16 is pushed toward the piston rod 4 by a suitable tool through the removal hole 1507 so that the lock ring 16 is withdrawn from the second annular groove 1504 of the connecting ear 15.
Screw holes 1701 are formed in one side, close to the cylinder barrel 1, of the baffle ring 17, the number of the screw holes 1701 is four, and the four screw holes 1701 are uniformly distributed in the circumference; the disassembly is facilitated by providing screw holes 1701.
As shown in fig. 9 and 10, the outer diameter of the inner locking ring 18 is matched with the second inner hole 1503, the inner diameter of the inner locking ring 18 is matched with the first annular groove 401, and the inner locking ring 18 is uniformly divided into a plurality of inner locking ring bodies 1801; the number of the inner locking ring bodies 1801 is two in this embodiment, and the inner locking ring bodies can be divided according to the needs in the actual use process.
The installation process of the invention is as follows:
step one, the knuckle bearing 7 is installed in the annular pore 1501 of the connecting ear ring 15;
step two, sequentially sleeving the elastic retainer ring 14 for holes and the baffle ring 17 on the piston rod 4, and loading the internal locking ring 18 into a first annular groove 401 at the front end of the piston rod 4;
Step three, the connecting ear ring 15 is installed at the right end of the piston rod 4, so that the first inner hole 1502 is matched with the right end of the piston rod 4, and the second inner hole 1503 is matched and positioned with the outer diameter of the inner locking ring 18;
Step four, fitting the ring-shaped part of the locking ring 16 into the second ring-shaped groove 1504 of the connecting ear ring 15, and fitting the outer diameter of the locking ring 16 in place;
fifthly, the outer side of the baffle ring 17 is respectively matched with the third inner hole 1505 of the connecting earring 15 and the inner hole of the locking ring 16, the inner diameter of the baffle ring 17 is matched with the outer diameter of the piston rod end, and the baffle ring is installed in place;
Step six, the circlip 14 for hole is fitted into the fitting groove 1506 of the connection ear 15.
When the guide bush 8, the first sealing element 9, the second sealing element 10, the third sealing element 11, the fourth sealing element 12 and the fifth sealing element 13 are damaged and need to be replaced, the following method is adopted for replacement, and the specific process is as follows:
step one, detaching the circlip 14 for hole from the mounting groove 1506 and withdrawing the inner hole of the connection ear 15;
Step two, a proper bolt is screwed into the screw hole 1701, and the baffle ring 17 is withdrawn from the inner hole of the connecting earring 15;
step three, pushing the locking ring 16 towards the piston rod 4 through the dismounting hole 1507 by using a proper tool, so that the locking ring 16 is withdrawn from the second annular groove 1504 of the connecting ear 15, and the locking ring 16 is removed;
Step four, moving the connecting earring 15 to the right or retracting the piston rod 4 to the left, and taking the hole elastic retainer ring 14, the baffle ring 17 and the internal locking ring 18 off the piston rod 4 after the connecting earring 15 and the piston rod 4 are separated from each other;
And fifthly, removing the guide sleeve lock nut 6 from the cylinder barrel 1 of the oil cylinder, removing the guide sleeve 5, the guide bush 8, the first sealing piece 9, the second sealing piece 10, the third sealing piece 11, the fourth sealing piece 12, the fifth sealing piece 13 and the like from the front end of the piston rod 4, and after replacing damaged parts, assembling in reverse order, so that replacement can be completed without completely removing the piston rod and the piston.
When the piston rod end earring is assembled with the connecting seat, the joint bearing 7, the connecting earring 15 and the piston rod 4 can mutually rotate, so that the convenience of installation is greatly improved.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (4)
1. The utility model provides a novel hydro-cylinder piston rod end connection structure, includes cylinder, lock nut, piston rod, uide bushing lock nut, uide bushing, first sealing member, second sealing member, third sealing member, fourth sealing member, fifth sealing member, its characterized in that: the right end of the piston rod is rotationally connected with a connecting earring, a first inner hole, a second annular groove, a third inner hole and a mounting groove are sequentially formed in the connecting earring, the right end of the piston rod is provided with the first annular groove, the right end of the piston rod is matched with the first inner hole, an inner locking ring is arranged between the first annular groove and the second inner hole, a locking ring is arranged in the second annular groove, a retaining ring is arranged on the inner side of the locking ring, the right end of the retaining ring is matched with the inner hole of the locking ring, the left end of the retaining ring is matched with the third inner hole, a hole circlip is arranged on the left side of the retaining ring, a hole circlip is matched with the mounting groove, the right end of the connecting earring is provided with an annular bearing, and a joint bearing is arranged in the annular groove; the external diameter of the internal locking ring is matched with the second inner hole, the internal diameter of the internal locking ring is matched with the first annular groove, and the internal locking ring is uniformly divided into a plurality of internal locking ring bodies.
2. The novel ram end connection structure of claim 1, wherein: and a third annular groove for disassembly is formed in one side, close to the cylinder barrel, of the locking ring, and the locking ring is uniformly divided into a plurality of locking ring bodies.
3. The novel ram end connection structure of claim 2, wherein: the outer side of the second annular groove is provided with dismounting holes, the number of the dismounting holes is the same as that of the locking ring bodies, and the positions of the dismounting holes are in one-to-one correspondence with the positions of the locking ring bodies.
4. The novel ram end connection structure of claim 1, wherein: and a screw hole is formed in one side, close to the cylinder barrel, of the baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111405816.9A CN114017419B (en) | 2021-11-24 | 2021-11-24 | Novel oil cylinder piston rod end connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111405816.9A CN114017419B (en) | 2021-11-24 | 2021-11-24 | Novel oil cylinder piston rod end connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114017419A CN114017419A (en) | 2022-02-08 |
| CN114017419B true CN114017419B (en) | 2024-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111405816.9A Active CN114017419B (en) | 2021-11-24 | 2021-11-24 | Novel oil cylinder piston rod end connection structure |
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| Country | Link |
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| CN (1) | CN114017419B (en) |
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| CN206754032U (en) * | 2017-04-07 | 2017-12-15 | 湖北金力液压件有限公司 | A kind of hydraulic jack with more sealing rings |
| CN210889548U (en) * | 2019-11-29 | 2020-06-30 | 江苏凯捷机械制造有限公司 | Conveniently dismantle pin-connected panel hydro-cylinder that overhauls |
| CN212985674U (en) * | 2020-09-12 | 2021-04-16 | 江苏正峰液压科技有限公司 | Variable-amplitude telescopic oil cylinder with replaceable earrings |
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2021
- 2021-11-24 CN CN202111405816.9A patent/CN114017419B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090198A (en) * | 2014-05-10 | 2015-11-25 | 滕州市天旋旋转接头制造有限公司 | Combined check ring for hole and shaft |
| CN211693030U (en) * | 2019-11-18 | 2020-10-16 | 江苏威玛斯精密机械有限公司 | Leak-proof check oil cylinder |
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| Publication number | Publication date |
|---|---|
| CN114017419A (en) | 2022-02-08 |
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