CN210531301U - Oil cylinder of hydraulic hoist - Google Patents
Oil cylinder of hydraulic hoist Download PDFInfo
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- CN210531301U CN210531301U CN201921512899.XU CN201921512899U CN210531301U CN 210531301 U CN210531301 U CN 210531301U CN 201921512899 U CN201921512899 U CN 201921512899U CN 210531301 U CN210531301 U CN 210531301U
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- piston rod
- rod end
- small step
- assembly
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Abstract
The utility model relates to a hydraulic hoist oil cylinder includes: the cylinder head assembly, the piston assembly, the cylinder barrel, the piston rod, the guide sleeve assembly, the piston rod sealing element, the rod end small step, the small step key groove and the rod end thread. The method is characterized in that: the piston rod is provided with a rod end small step and a small step key groove; the excircle of the small step at the rod end is smaller than the excircle of the piston rod, and a plurality of small step key grooves are uniformly distributed on the small step at the rod end; during the hydro-cylinder assembly, piston rod sealing member can not rub little step keyway and damage, and the screw thread is conveniently screwed up as the stress point when rod end screw thread is connected with the matching part to a plurality of little step keyways. The oil cylinder of the hydraulic hoist has the advantages of reasonable design, reliable sealing, convenience in assembly, practicability and convenience.
Description
Technical Field
The utility model relates to a hydraulic hoist oil cylinder.
Background
The following problem exists when the hydraulic hoist hydro-cylinder is assembled at present: when first piston rod sealing member was adorned from the piston rod end, because set up the easy scratch sealing member in the flat position of piston rod end, easy oil leak during the use influences the result of use, during second assembly, the flat position that blocks the piston rod end needs very big spanner, and inconvenient being equipped with influences assembly efficiency and assembly quality.
Disclosure of Invention
The utility model aims at: when the hydraulic hoist oil cylinder is assembled with the piston rod sealing element, the sealing element is not in contact with the flat position of the end of the piston rod, the possibility of scratching the sealing element is avoided, the piston rod can be clamped without a large wrench, the production efficiency is greatly improved, and the assembling reliability can be ensured.
The utility model provides a technical scheme that its technical problem adopted is:
a hydraulic hoist cylinder comprising: the cylinder head assembly comprises a cylinder head assembly 1, a piston assembly 2, a cylinder barrel 3, a piston rod 4, a guide sleeve assembly 5, a piston rod sealing member 6, a rod end small step 7, a small step key groove 8 and a rod end thread 9.
The piston rod 4 is provided with a rod end small step 7 and a small step key groove 8.
The excircle of the rod end small step 7 is smaller than the excircle of the piston rod 4, and a plurality of small step key grooves 8 are uniformly distributed on the rod end small step 7.
During the hydro-cylinder assembly, piston rod sealing member 6 can not rub little step keyway 8 and damage, and the stress point when a plurality of little step keyways 8 are connected with the kit and screw up as rod end screw thread 9, conveniently screws up the screw thread.
The utility model has the advantages that:
the hydraulic hoist oil cylinder has no scraping of piston rod sealing part during assembling, raised use reliability and lowered maintenance cost.
The piston rod is assembled without a large spanner or a common hook spanner, and the assembling quality is reliable.
The present invention will be described in detail with reference to the accompanying drawings.
Drawings
FIG. 1: a structure diagram of a hydraulic hoist cylinder.
FIG. 2 is a drawing: a structure diagram of a piston rod end of a hydraulic hoist cylinder.
In the drawings: 1-cylinder end subassembly, 2-piston assembly, 3-cylinder, 4-piston rod, 5-uide bushing subassembly, 6-piston rod sealing member, 7-little step in rod end, 8-little step keyway, 9-rod end screw thread.
Detailed Description
The attached figure 1 of the specification shows that a cylinder head assembly 1 is connected with a cylinder barrel 3, a piston assembly 2 is connected with a piston rod 4, and a guide sleeve assembly 5 is connected with the cylinder barrel 3.
Description figure 1 shows that the piston rod seal 6 is mounted on the guide sleeve assembly 5, the piston assembly 2 is axially movable in the cylinder 3, and the piston rod 4 is axially movable through the guide sleeve assembly 5 and the piston rod seal 6.
The description attached with figure 1 and the description attached with figure 2 show that the piston rod 4 is provided with a rod end small step 7 and a plurality of small step key grooves 8.
As shown in the attached figures 1 and 2 of the specification, the excircle of the rod end small step 7 is smaller than the excircle of the piston rod 4, and a plurality of small step key grooves 8 are uniformly distributed on the rod end small step 7.
A hydraulic hoist oil cylinder assembly work process includes that a cylinder head component 1 is connected with a cylinder barrel 3, meanwhile, after a piston component 2 is connected with a piston rod 4, the piston component 2 is installed in the cylinder barrel 3, a guide sleeve component 5 and a piston rod sealing piece 6 penetrate through the piston rod 4 and are installed on the cylinder barrel 3, when the piston rod sealing piece 6 penetrates through the piston rod 4, the piston rod sealing piece 6 is not in contact with a small step 7 at the rod end, the piston rod sealing piece 6 is not scratched possibly, when oil is fed into the cylinder barrel, the piston component 2 can axially move in the cylinder barrel 3, and the piston rod 4 penetrates through the guide sleeve component 5 and the piston rod sealing piece 6 and can axially move, so that the purpose of. The oil cylinder of the hydraulic hoist has the advantages of reasonable design, reliable sealing, convenience in assembly, practicability and convenience.
Claims (1)
1. A hydraulic hoist cylinder, comprising: cylinder head subassembly (1), piston assembly (2), cylinder (3), piston rod (4), uide bushing subassembly (5), piston rod sealing member (6), little step of rod end (7), little step keyway (8) and rod end screw thread (9), characterized by: be provided with little step (7) of rod end and little step keyway (8) on piston rod (4), the excircle of the little step (7) of rod end is less than the excircle of piston rod (4), a plurality of little step keyways (8) equipartitions are on little step (7) of rod end, during the hydro-cylinder assembly, piston rod sealing member (6) can not rub little step keyway (8) and damage, a plurality of little step keyways (8) are connected the stress point when screwing up as rod end screw thread (9) and supporting part, conveniently screw up the screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921512899.XU CN210531301U (en) | 2019-09-11 | 2019-09-11 | Oil cylinder of hydraulic hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921512899.XU CN210531301U (en) | 2019-09-11 | 2019-09-11 | Oil cylinder of hydraulic hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210531301U true CN210531301U (en) | 2020-05-15 |
Family
ID=70605299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921512899.XU Active CN210531301U (en) | 2019-09-11 | 2019-09-11 | Oil cylinder of hydraulic hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210531301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439877A (en) * | 2019-09-11 | 2019-11-12 | 湖北咸宁三合机电股份有限公司 | A kind of oil cylinder of hydraulic headstock gear |
-
2019
- 2019-09-11 CN CN201921512899.XU patent/CN210531301U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439877A (en) * | 2019-09-11 | 2019-11-12 | 湖北咸宁三合机电股份有限公司 | A kind of oil cylinder of hydraulic headstock gear |
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