CN205423829U - Open seal groove structure of pneumatic cylinder - Google Patents
Open seal groove structure of pneumatic cylinder Download PDFInfo
- Publication number
- CN205423829U CN205423829U CN201520933533.5U CN201520933533U CN205423829U CN 205423829 U CN205423829 U CN 205423829U CN 201520933533 U CN201520933533 U CN 201520933533U CN 205423829 U CN205423829 U CN 205423829U
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- seal groove
- hole
- horizontal ring
- hydraulic cylinder
- groove structure
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Abstract
The utility model discloses an open seal groove structure of pneumatic cylinder, mainly solving among the current seal groove who exists among the prior art open seal groove, to make be fashionable position tolerance heavy handled, closed seal groove is difficult to the problem that the installation easily caused the waste product. This open seal groove structure of pneumatic cylinder includes horizontal ring form hole, horizontal ring form hole sets up the one end at hydraulic cylinder piston rod's uide bushing, and its U -type sealing ring with hydraulic cylinder piston rod cooperatees, the drill way in horizontal ring form hole is the inclined plane, and its inclination's scope is 15 - 20, horizontal ring form hole is the straight hole in vertical direction, the bottom in the inclined plane drill way in horizontal ring form hole is 3 -4mm with the scope that horizontal ring described the distance of hole top surface, horizontal ring describes the downthehole packing ring that is equipped with. By the proposal, the utility model discloses reached and be convenient for install the purpose that U -type sealing ring is difficult for causing the waste product, had very high practical value and spreading value.
Description
Technical field
This utility model relates to a kind of sealed groove, specifically, relates to the open type sealed groove structure of a kind of hydraulic cylinder.
Background technology
At present, in the sealing of hydraulic cylinder piston rod, primary seal all uses the U-shaped sealing ring of polyurethane material.There are tradition open type and two kinds of forms of enclosed in the diameter of piston rod sealed groove less than 45mm, tradition open type sealed groove form and position tolerance when part manufactures is difficult to control to；Because U-shaped sealing ring shore hardness is generally about 94, relatively hard, cross dimensions thickness is relatively big, elastic deformation difficulty, therefore enclosed sealed groove difficulty when filling U-shaped sealing ring, it is difficult to install, and easily causes waste product.
Utility model content
When problem to be solved in the utility model is the manufacture of existing sealed groove middle open type sealed groove, line position tolerance is difficult to control to；Enclosed sealed groove is difficult to installation and easily causes waste product.
In order to solve the problems referred to above, this utility model following technical scheme of offer:
The open type sealed groove structure of hydraulic cylinder includes horizontal endless hole；Horizontal endless hole is arranged on one end of the fairlead of hydraulic cylinder piston rod, and it matches with the U-shaped sealing ring of hydraulic cylinder piston rod；The aperture in horizontal endless hole is inclined-plane, and its angle of inclination is in the range of 15 °-20 °.
Specifically, described horizontal endless hole in the vertical direction is straight hole.
Specifically, the bottom in the aperture, inclined-plane in horizontal endless hole and the distance of horizontal endless hole end face are in the range of 3-4mm.
Specifically, it is provided with packing ring in horizontal endless hole.
Compared with prior art, this utility model has the advantages that compared with tradition open type and two kinds of sealed grooves of enclosed, the diameter of piston rod U-shaped sealing ring less than 45mm is when assembling, U-shaped sealing ring accurately can import from aperture, inclined-plane, make U-shaped sealing ring be more easy to install, improve the installation effectiveness of U-shaped sealing ring；Avoid because U-shaped sealing ring is relatively hard, the situation being difficult to install and easily cause waste product that the reasons such as cross dimensions thickness is relatively big, elastic deformation difficulty cause, use this utility model correspondence that U-shaped sealing ring is installed, its spoilage is substantially zeroed；And this utility model simple in construction is easy to processing.
Accompanying drawing explanation
Fig. 1 is the cross-sectional structure schematic diagram of guide head.
Fig. 2 is assembling structural representation of the present utility model.
In above-mentioned accompanying drawing, component names corresponding to reference is as follows:
1-piston rod, 2-cylinder cap, 3-packing ring, 4-U RunddichtringO, 5-cylinder body, 6-fairlead, 7-horizontal endless hole.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings, and embodiment of the present utility model includes but not limited to the following example.
Embodiment
As depicted in figs. 1 and 2, the open type sealed groove structure of hydraulic cylinder includes horizontal endless hole 7；Horizontal endless hole 7 is arranged on one end of the fairlead 6 of hydraulic cylinder piston rod 1, and it matches with the U-shaped sealing ring 4 of hydraulic cylinder piston rod 1；The aperture in horizontal endless hole 7 is inclined-plane, and its angle of inclination is in the range of 15 °-20 °；Horizontal endless hole 7 in the vertical direction is straight hole；The distance of the bottom in the aperture, inclined-plane in horizontal endless hole 7 and horizontal endless hole 7 end face is in the range of 3-4mm；Packing ring 3 it is provided with in horizontal endless hole 7.
Wherein, the aperture in horizontal endless hole 7 is inclined-plane, and its angle of inclination optimum is 20 °；The bottom in the aperture, inclined-plane in horizontal endless hole 7 is 3mm with the distance optimum of horizontal endless hole 7 end face；
As depicted in figs. 1 and 2, in use, U-shaped sealing ring 4 accurately imports embodiment along aperture, inclined-plane, reinstalls packing ring 3, is compressed by the cylinder cap 2 of hydraulic cylinder；A gap must be had between assembling back cylinder cover 2 and cylinder body 5, its gap length is between 0.1mm-0.5mm, to ensure cylinder cap 2 energy packing washer 3 and fairlead 6, to ensure that the assembly of hydraulic cylinder operationally cylinder cap 2, packing ring 3 and fairlead 6 does not have any small movement；This utility model can be used not only for hydraulic cylinder piston rod 1 diameter and assembles less than the U-shaped sealing ring 4 during 45mm, also can be used in hydraulic cylinder piston rod 1 diameter and assemble less than the U-shaped sealing ring 4 during 40mm, and effect is more preferable.
This utility model is compared with tradition open type and two kinds of sealed grooves of enclosed, the piston rod 1 diameter U-shaped sealing ring 4 less than 45mm is when assembling, U-shaped sealing ring 4 accurately can import from aperture, inclined-plane, makes U-shaped sealing ring 4 be more easy to install, improves the installation effectiveness of U-shaped sealing ring 4；Avoid because U-shaped sealing ring 4 is relatively hard, the situation being difficult to install and easily cause waste product that the reasons such as cross dimensions thickness is relatively big, elastic deformation difficulty cause, use this utility model correspondence that U-shaped sealing ring 4 is installed, its spoilage is substantially zeroed；And this utility model simple in construction is easy to processing.
According to above-described embodiment, this utility model just can be realized well.What deserves to be explained is; on the premise of designing based on said structure; for solving same technical problem; even if some made on this utility model are without substantial change or polishing; the essence of the technical scheme used is still as this utility model, therefore it should also be as in protection domain of the present utility model.
Claims (4)
1. the open type sealed groove structure of a hydraulic cylinder, it is characterised in that: include horizontal endless hole (7)；Horizontal endless hole (7) is arranged on one end of the fairlead (6) of hydraulic cylinder piston rod (1), and it matches with the U-shaped sealing ring (4) of hydraulic cylinder piston rod (1)；The aperture in horizontal endless hole (7) is inclined-plane, and its angle of inclination is in the range of 15 °-20 °.
The open type sealed groove structure of hydraulic cylinder the most according to claim 1, it is characterised in that: described horizontal endless hole (7) in the vertical direction is straight hole.
The open type sealed groove structure of hydraulic cylinder the most according to claim 2, it is characterised in that: the distance of the bottom in the aperture, inclined-plane of horizontal endless hole (7) and horizontal endless hole (7) end face is in the range of 3-4mm.
The open type sealed groove structure of hydraulic cylinder the most according to claim 3, it is characterised in that: it is provided with packing ring (3) in horizontal endless hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520933533.5U CN205423829U (en) | 2015-11-23 | 2015-11-23 | Open seal groove structure of pneumatic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520933533.5U CN205423829U (en) | 2015-11-23 | 2015-11-23 | Open seal groove structure of pneumatic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423829U true CN205423829U (en) | 2016-08-03 |
Family
ID=56536106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520933533.5U Active CN205423829U (en) | 2015-11-23 | 2015-11-23 | Open seal groove structure of pneumatic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575434A (en) * | 2017-07-26 | 2018-01-12 | 盐城润浩密封件科技有限公司 | A kind of seal of horizontal hydraulic cylinder |
-
2015
- 2015-11-23 CN CN201520933533.5U patent/CN205423829U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575434A (en) * | 2017-07-26 | 2018-01-12 | 盐城润浩密封件科技有限公司 | A kind of seal of horizontal hydraulic cylinder |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |