CN205423387U - Axletree hydro -cylinder - Google Patents
Axletree hydro -cylinder Download PDFInfo
- Publication number
- CN205423387U CN205423387U CN201620126047.7U CN201620126047U CN205423387U CN 205423387 U CN205423387 U CN 205423387U CN 201620126047 U CN201620126047 U CN 201620126047U CN 205423387 U CN205423387 U CN 205423387U
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- Prior art keywords
- piston
- axletree
- oil cylinder
- cylinder
- piston rod
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- Pistons, Piston Rings, And Cylinders (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses an axletree hydro -cylinder belongs to the large -scale maintenance mechanical equipment technical field of railway, and this axletree hydro -cylinder includes: cylinder body, piston rod and piston, piston rod and piston are integrated into one piece, constitute the one piece piston pole, the one piece piston pole is installed in the cylinder body. Compare with traditional axletree hydro -cylinder, it is sealed to have removed the O type, has avoided the O type to seal in assembling process easily and has been hindered by the piston is crowded, causes the hydro -cylinder to leak, and the security that has improved axletree hydro -cylinder has improved the life of part.
Description
Technical field
This utility model relates to railway large-scale Maintenance Machinery equipment technical field, is specifically related to a kind of axletree oil cylinder.
Background technology
The axle oil cylinder structure of existing railway large-scale Maintenance Machinery engineering truck, as it is shown in figure 1, include cylinder body 1, piston seal 2, screw 6, O type sealing 7, piston 42, piston rod 41, hydraulic fluid port 5.Its annexation each other is: first sealed by O type in 7 loading piston channel, piston rod 41 is loaded in the groove of piston 42, it is fixed on piston rod 41 with 6 pistons 42 of screw, piston seal 8 is loaded in the groove of piston 42, whole piston rod assembly is loaded in cylinder barrel 1, the operation principle of the axletree oil cylinder constituted is: inject the hydraulic oil of certain pressure in hydraulic fluid port 5, promotes piston rod assembly to move to the right, it is achieved action request.
But having the right side cavity that two seals makes hydraulic oil can not enter cylinder body in current axle oil cylinder structure, O type is easily squeezed wound by piston during being sealed in assembling, causes oil cylinder to leak, and safety is relatively low, and reduces the service life of part；Outside two, the original material of piston is aluminium bronze, and price is high, so that the use cost of existing axletree oil cylinder is higher.
Utility model content
The defect existed for prior art, the utility model proposes a kind of axletree oil cylinder, to solve the problem that axletree oil cylinder safety of the prior art is relatively low, service life is short.
For this purpose it is proposed, first aspect, this utility model provides a kind of axletree oil cylinder, and this axletree oil cylinder includes: cylinder body, piston rod and piston；
Described piston rod and piston are formed in one, and constitute unitary piston rod, and described unitary piston rod is arranged in described cylinder body.
Wherein, guide ring is also included；
Described guide ring is arranged in the guide groove on described piston.
Wherein, the quantity of described guide ring is 2.
Wherein, also include: piston seal；
Described piston seal is arranged in the seal groove on described piston.
Wherein, described 2 guide rings are arranged on described seal groove both sides.
Wherein, the material of described unitary piston rod is common medium-carbon steel.
A kind of axletree oil cylinder that this utility model provides, by by one-body molded to piston rod and piston, making one-piece parts, the O type in traditional axletree oil cylinder that eliminates seals so that hydraulic oil can enter into the right side cavity of axle oil cylinder body, avoid O type to be sealed in during assembling and easily to be squeezed, by piston, the oil cylinder that wound causes and leak, improve the safety of axletree oil cylinder, improve the service life of part, and, unitary piston rod is made up of common medium-carbon steel material, reduces the use cost of axletree oil cylinder.
Accompanying drawing explanation
In order to be illustrated more clearly that disclosure embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the disclosure, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these figures.
Fig. 1 is the structural representation of axletree oil cylinder of the prior art；
The structural representation of the axletree oil cylinder that Fig. 2 provides for this utility model one embodiment.
Description of reference numerals
In figure:
1: cylinder body 2: piston seal 3: guide ring 4: unitary piston rod 5: hydraulic fluid port 41: piston rod 42: piston 6: screw 7:O type seals.
Detailed description of the invention
Below in conjunction with the accompanying drawing in disclosure embodiment, the technical scheme in disclosure embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in the disclosure, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of disclosure protection.
Embodiment one
As it is shown in figure 1, disclosure embodiment provides a kind of axletree oil cylinder, this axletree oil cylinder includes: cylinder body 1, piston rod 41 and piston 42；
Piston rod 41 and piston 42 are formed in one, and constitute unitary piston rod 4, and unitary piston rod 4 is arranged in cylinder body 1.
A kind of axletree oil cylinder that disclosure embodiment provides, traditional piston rod being installed separately and piston are made one-piece parts, the O type in traditional axletree oil cylinder part that eliminates seals, avoid O type to be sealed in during assembling and easily to be squeezed, by piston, the oil cylinder that wound causes and leak, improve the safety of axletree oil cylinder, improve the service life of part.Avoid O type to be sealed in during assembling and easily to be squeezed, by piston, the oil cylinder that wound causes and leak, improve the safety of axletree oil cylinder, improve the service life of part.
At a kind of axletree oil cylinder that above-described embodiment provides, also include that piston seal 2, piston seal 2 are installed in seal groove on the piston 42.
In the above-described embodiments, piston seal 2 is generally employed in pairs, and is separately mounted to the both sides of piston 42.
In the above-described embodiments, the material of unitary piston rod 4 is common medium-carbon steel, reduces production cost.
A kind of axletree oil cylinder that above-described embodiment provides is compared with traditional axletree oil cylinder, save the sealing of O type, screw, simplify the sealing density of axletree oil cylinder, improve the service life of axletree oil cylinder, simultaneously, simplify the assembling process of parts, improve the efficiency of assembling of axletree oil cylinder, save Financial cost.
Embodiment two
As it is shown in figure 1, disclosure embodiment provides a kind of axletree oil cylinder, on the basis of above-described embodiment one obtains technical scheme, it is mounted with guide ring 3 on the piston 42.
The present embodiment, by installing guide ring on piston, improves the guide effect of axletree oil cylinder, decreases the friction between unitary piston rod and cylinder body, improve the safety of axletree oil cylinder.
In the above-described embodiments, the quantity of guide ring 3 is 2.
The quantity being directed to ring in the present embodiment is set to 2, further improves guide effect, decreases the friction between unitary piston rod and cylinder body, extends the service life of axletree oil cylinder.
In the above-described embodiments, 2 guide rings 3 are installed the both sides of seal groove on the piston 42.
Preferably, 2 guide rings 3 are installed the monosymmetric position of seal groove on the piston 42.
The monosymmetric position of the seal groove being arranged on 42 by 2 guide rings in the present embodiment, can make guide effect the most reasonable.
One of ordinary skill in the art will appreciate that: various embodiments above only in order to the technical solution of the utility model to be described, is not intended to limit；Although this utility model being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this utility model claim limited range.
Claims (6)
1. an axletree oil cylinder, it is characterised in that including: cylinder body, piston rod and piston；
Described piston rod and piston are formed in one, and constitute unitary piston rod, and described unitary piston rod is arranged in described cylinder body.
Axletree oil cylinder the most according to claim 1, it is characterised in that also include guide ring；
Described guide ring is arranged in the guide groove on described piston.
Axletree oil cylinder the most according to claim 2, it is characterised in that the quantity of described guide ring is 2.
Axletree oil cylinder the most according to claim 3, it is characterised in that also include: piston seal；
Described piston seal is arranged in the seal groove on described piston.
Axletree oil cylinder the most according to claim 4, it is characterised in that described 2 guide rings are arranged on described seal groove both sides.
6. according to the axletree oil cylinder according to any one of Claims 1 to 5, it is characterised in that the material of described unitary piston rod is common medium-carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620126047.7U CN205423387U (en) | 2016-02-17 | 2016-02-17 | Axletree hydro -cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620126047.7U CN205423387U (en) | 2016-02-17 | 2016-02-17 | Axletree hydro -cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423387U true CN205423387U (en) | 2016-08-03 |
Family
ID=56541133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620126047.7U Active CN205423387U (en) | 2016-02-17 | 2016-02-17 | Axletree hydro -cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061410A (en) * | 2017-05-09 | 2017-08-18 | 佛山市顺德区友力帮机械有限公司 | A kind of structure-improved of hydraulic jack |
-
2016
- 2016-02-17 CN CN201620126047.7U patent/CN205423387U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061410A (en) * | 2017-05-09 | 2017-08-18 | 佛山市顺德区友力帮机械有限公司 | A kind of structure-improved of hydraulic jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 101500. 25, science and technology road, Miyun Economic Development Zone, Beijing Patentee after: Harmony Group Co., Ltd. Address before: 101500 No. 25, science and technology road, Miyun Economic Development Zone, Beijing, China Patentee before: BEIJING KANGWEI HEAVY INDUSTRY MACHINERY MANUFACTURING CO., LTD. |