CN212479758U - Oil cylinder piston rod assembling structure - Google Patents
Oil cylinder piston rod assembling structure Download PDFInfo
- Publication number
- CN212479758U CN212479758U CN202020907444.4U CN202020907444U CN212479758U CN 212479758 U CN212479758 U CN 212479758U CN 202020907444 U CN202020907444 U CN 202020907444U CN 212479758 U CN212479758 U CN 212479758U
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- piston rod
- oil cylinder
- rear end
- cylinder piston
- end flange
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Abstract
The utility model discloses an oil cylinder piston rod assembly structure, which comprises an oil cylinder seat, a rear end flange and an oil cylinder piston rod; the rear end flange, the oil cylinder seat and the oil cylinder piston rod are detachably connected, an anti-twist key is arranged at the joint of the rear end flange and the oil cylinder piston rod, a ring groove is formed in the oil cylinder piston rod and positioned on the outer side of the rear end flange, and a clamping sleeve is arranged in the ring groove; the piston rod and the rear end flange of the utility model can be detachably connected, the piston rod and the rear end flange can be separately processed, the process is simple, the processing and assembling difficulty is effectively reduced, and the production period can be shortened; in the assembly process of the mud-pumping oil cylinder, the piston rod and the rear end flange are simple to assemble, the assembly time is short, and the flange fixing form is simple and reliable; the piston rod can be independently replaced in the mud-pumping oil cylinder, and the oil cylinder is integrally disassembled, so that the maintenance cost is reduced.
Description
Technical Field
The utility model belongs to hydraulic pressure mud gun machine field, concretely relates to hydro-cylinder piston rod assembly structure.
Background
The piston rod structure of the hydraulic mud gun mud-beating oil cylinder adopts the working principle that the rear flange and the right end of the piston rod are welded into a whole, the rear flange of the piston rod and the flange of the oil cylinder seat are fixed into a whole in the using process, the piston rod is fixed and the oil cylinder body moves in the moving process of the oil cylinder.
The rear flange and the piston rod are fixed in a split assembly mode, and the installation and the disassembly on site are convenient.
The schematic diagram of the flange welding type fixed mounting structure is shown in FIG. 1: the rear end flange 2 and the oil cylinder piston rod 3 are welded into a whole, the rear end flange 2 and the oil cylinder base 1 are combined into a whole through bolts, and the oil cylinder barrel assembly 4 and the oil cylinder piston rod 3 form a mud-beating oil cylinder structure; when the mud-beating oil cylinder works, the oil cylinder seat is fixedly connected with the rear end flange and the piston rod 3, and the oil cylinder barrel is assembled to move back and forth along the piston rod. The whole processing procedure of the oil cylinder piston rod body and the rear end flange in the structural form is complicated, the processing difficulty is high, and the production period is long; when the piston rod is damaged and scrapped, the piston rod cannot be replaced independently, the piston rod and the flange need to be scrapped together, and the maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a hydro-cylinder piston rod assembly structure, piston rod and rear end flange can dismantle and be connected, and the piston rod can separately process alone with the rear end flange, and the process simply can be changed the piston rod alone, and the hydro-cylinder is whole to be dismantled, maintenance cost reduces.
In order to achieve the above purpose, the utility model adopts the technical scheme that: an oil cylinder piston rod assembly structure comprises an oil cylinder seat, a rear end flange and an oil cylinder piston rod; the rear end flange, the oil cylinder seat and the oil cylinder piston rod are detachably connected, an anti-twisting key is arranged at the joint of the rear end flange and the oil cylinder piston rod, an annular groove is formed in the outer side, located on the rear end flange, of the oil cylinder piston rod, and a clamping sleeve is arranged in the annular groove.
A first key groove is formed in the joint of the oil cylinder piston rod and the rear end flange, a second key groove is formed in the inner wall of a central connecting hole of the rear end flange, and the anti-torsion key is arranged in the first key groove and the second key groove.
The rear end flange is in interference fit with the oil cylinder piston rod.
The rear end of the oil cylinder piston rod is a stepped shaft, and the length of the connecting section of the oil cylinder piston rod and the rear end flange is smaller than the thickness of the rear end flange.
A gap is arranged between the connecting sections of the clamping sleeve, the oil cylinder piston rod and the rear end flange.
The cutting ferrule ring sleeve adopts a split type structure, the cutting ferrule comprises a first semi-annular cutting ferrule and a second semi-annular cutting ferrule, and a gap is arranged between the end surfaces of the first semi-annular cutting ferrule and the second semi-annular cutting ferrule after the first semi-annular cutting ferrule and the second semi-annular cutting ferrule are connected and fastened.
The first semi-annular clamping sleeve and the second semi-annular clamping sleeve are connected and fastened at the end faces of the first semi-annular clamping sleeve and the second semi-annular clamping sleeve through bolts.
One end of the first semi-annular clamping sleeve is hinged to one end of the second semi-annular clamping sleeve, and the other end of the first semi-annular clamping sleeve is connected and fastened through a bolt.
The rear end flange and the oil cylinder seat adopt a flange connection structure.
Compared with the prior art, the utility model discloses following beneficial effect has at least: the piston rod and the rear end flange of the utility model can be detachably connected, the piston rod and the rear end flange can be separately processed, the process is simple, the processing and assembling difficulty is effectively reduced, and the production period can be shortened; in the assembly process of the mud-pumping oil cylinder, the piston rod and the rear end flange are simple to assemble, the assembly time is short, and the flange fixing form is simple and reliable; the piston rod can be independently replaced in the mud-pumping oil cylinder, and the oil cylinder is integrally disassembled, so that the maintenance cost is reduced.
Drawings
Fig. 1 is a schematic view of a connection structure of a piston rod of a conventional oil cylinder.
Fig. 2 is the schematic sectional view of the connection structure of the piston rod of the oil cylinder of the present invention.
Fig. 3 is a schematic right side view of the fig. 2 shown in an un-cut state.
In the attached drawing, 1-oil cylinder base, 2-rear end flange, 3-oil cylinder piston rod, 4-oil cylinder barrel assembly, 5-cutting sleeve and 6-anti-twist key.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2, an anti-twisting key 6 is arranged at the joint of the cylinder piston rod 3 and the rear end flange 2, an annular groove is formed in the end portion of the cylinder piston rod 3, a clamping sleeve 5 is arranged in the annular groove, the anti-twisting key 6 is fixed on the cylinder piston rod 3, the rear end flange 2 is tightly matched with the cylinder piston rod 3 through the anti-twisting key 6, the clamping sleeve 5 is clamped into the annular groove of the cylinder piston rod 3 and tightly presses the rear end flange 2, the rear end flange 2 and the cylinder seat 1 are integrated through a bolt, and a mud-beating cylinder structural form is formed by the cylinder barrel assembly 4 and the cylinder piston rod 3.
The rear end of the oil cylinder piston rod 3 is a stepped shaft, the length of the connecting section of the oil cylinder piston rod 3 and the rear end flange 2 is smaller than the thickness of the rear end flange 2, and the clearance between the clamping sleeve 5 and the connecting section of the oil cylinder piston rod 3 and the rear end flange 2 is S.
Referring to fig. 3, the cutting ferrule 5 is in a split structure, and the cutting ferrule 5 comprises a first semi-annular cutting ferrule and a second semi-annular cutting ferrule which are connected and fastened, and a gap is formed between the end surfaces of the first semi-annular cutting ferrule and the second semi-annular cutting ferrule, so that the cutting ferrule 5 can clamp the cylinder piston rod 3.
Optionally, the first semi-annular clamping sleeve and the second semi-annular clamping sleeve are connected and fastened at the end faces thereof through bolts.
Optionally, one end of the first semi-annular cutting sleeve is hinged to one end of the second semi-annular cutting sleeve, and the other end of the first semi-annular cutting sleeve is connected and fastened through a bolt.
As optional embodiment, cutting ferrule 5 adopts whole annular structure, and the inboard is established the internal thread, and the one section that is located the rear end flange 2 outside on the hydro-cylinder piston rod 3 sets up the external screw thread, cutting ferrule 5 and 3 threaded connection of hydro-cylinder piston rod to the outside of cutting ferrule 5 sets up lock nut.
When the mud-beating oil cylinder works, the oil cylinder seat, the rear end flange and the oil cylinder piston rod are fixed, and the oil cylinder barrel is assembled to move back and forth along the piston rod.
Claims (9)
1. An oil cylinder piston rod assembly structure is characterized by comprising an oil cylinder base (1), a rear end flange (2) and an oil cylinder piston rod (3); rear end flange (2) and hydro-cylinder seat (1) and hydro-cylinder piston rod (3) all can be dismantled and be connected, and rear end flange (2) and hydro-cylinder piston rod (3) junction set up prevents turning round key (6), and the annular is seted up in the outside that lies in rear end flange (2) on hydro-cylinder piston rod (3), set up cutting ferrule (5) in the annular.
2. The oil cylinder piston rod assembling structure according to claim 1, wherein a first key groove is formed at the joint of the oil cylinder piston rod (3) and the rear end flange (2), a second key groove is formed in the inner wall of a central connecting hole of the rear end flange (2), and the anti-torsion key (6) is arranged in the first key groove and the second key groove.
3. The cylinder piston rod assembling structure according to claim 1, wherein the rear end flange (2) is in interference fit with the cylinder piston rod (3).
4. The cylinder piston rod assembling structure according to claim 1, wherein the rear end of the cylinder piston rod (3) is a stepped shaft, and the length of the connecting section between the cylinder piston rod (3) and the rear end flange (2) is smaller than the thickness of the rear end flange (2).
5. The oil cylinder piston rod assembling structure according to claim 1, wherein a gap is provided between the ferrule (5) and the connecting section of the oil cylinder piston rod (3) and the rear end flange (2).
6. The oil cylinder piston rod assembling structure according to claim 5, wherein the cutting sleeve (5) comprises a first semi-annular cutting sleeve and a second semi-annular cutting sleeve, and a gap is formed between the end surfaces of the first semi-annular cutting sleeve and the second semi-annular cutting sleeve after the first semi-annular cutting sleeve and the second semi-annular cutting sleeve are connected and fastened.
7. The cylinder piston rod assembly structure according to claim 5, wherein the first semi-annular retainer and the second semi-annular retainer are connected and fastened at end surfaces thereof by bolts.
8. The oil cylinder piston rod assembling structure according to claim 1, wherein one end of the first semi-annular clamping sleeve and one end of the second semi-annular clamping sleeve are hinged, and the other ends are connected and fastened through a bolt.
9. The cylinder piston rod assembly structure according to claim 1, wherein the rear end flange (2) and the cylinder block (1) adopt a flange connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020907444.4U CN212479758U (en) | 2020-05-26 | 2020-05-26 | Oil cylinder piston rod assembling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020907444.4U CN212479758U (en) | 2020-05-26 | 2020-05-26 | Oil cylinder piston rod assembling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212479758U true CN212479758U (en) | 2021-02-05 |
Family
ID=74411469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020907444.4U Active CN212479758U (en) | 2020-05-26 | 2020-05-26 | Oil cylinder piston rod assembling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212479758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130938A (en) * | 2021-11-12 | 2022-03-04 | 重庆荆江汽车半轴股份有限公司 | Material forging device is gathered to car semi-axis flange end |
| CN114135539A (en) * | 2021-11-30 | 2022-03-04 | 成都成缸液压设备制造有限公司 | Split clamping key type oil cylinder of central pipe and mounting method thereof |
-
2020
- 2020-05-26 CN CN202020907444.4U patent/CN212479758U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130938A (en) * | 2021-11-12 | 2022-03-04 | 重庆荆江汽车半轴股份有限公司 | Material forging device is gathered to car semi-axis flange end |
| CN114130938B (en) * | 2021-11-12 | 2024-05-28 | 重庆荆江汽车半轴股份有限公司 | Material gathering forging device for flange end of automobile half shaft |
| CN114135539A (en) * | 2021-11-30 | 2022-03-04 | 成都成缸液压设备制造有限公司 | Split clamping key type oil cylinder of central pipe and mounting method thereof |
| CN114135539B (en) * | 2021-11-30 | 2023-10-27 | 成都成缸液压设备制造有限公司 | Central tube split clamping key type oil cylinder and installation method thereof |
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