CN105114395A - Long-stroke hydraulic oil cylinder rotation preventing device - Google Patents
Long-stroke hydraulic oil cylinder rotation preventing device Download PDFInfo
- Publication number
- CN105114395A CN105114395A CN201510601418.2A CN201510601418A CN105114395A CN 105114395 A CN105114395 A CN 105114395A CN 201510601418 A CN201510601418 A CN 201510601418A CN 105114395 A CN105114395 A CN 105114395A
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- CN
- China
- Prior art keywords
- piston rod
- rotation device
- card key
- hydraulic jack
- guide rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000010720 hydraulic oil Substances 0.000 title abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention relates to a long-stroke hydraulic oil cylinder rotation preventing device. The device comprises a cylinder body, a piston rod and a cylinder bottom, wherein the cylinder bottom is fixedly installed at one end of the cylinder body, and a guiding and rotation preventing unit which is used for preventing the piston rod from rotating and has a guiding function is arranged in the cylinder body. The rotation preventing device has a good rotation preventing function and high rotating preventing reliability and is capable of achieving stable operation, simple in structure, easy to machine and suitable for long-stroke hydraulic oil cylinders.
Description
Technical field
The present invention relates to technical field of hydraulic oil cylinder, especially relate to a kind of Long travel hydraulic jack anti-rotation device.
Background technique
The anti-rotation device of existing hydraulic jack, rely on piston rod inner to place a solid eccentric guide rod to realize anti-rotation, this anti-rotation device comprises piston rod and guide rod, anti-rotating function is played by guide rod confined piston bar, and two shortcomings that such anti-rotation device exists: one side is elongate rod so have certain amount of deflection due to guide rod, so stroke can not be long.On the other hand, on piston rod, processing slim hole machined difficulty is larger.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome in prior art rely on piston rod inner to place method that a solid eccentric guide rod realizes anti-rotation there is stroke can not processing slim hole machined difficulty is larger on long and piston rod problem, a kind of Long travel hydraulic jack anti-rotation device is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Long travel hydraulic jack anti-rotation device, comprise cylinder body, piston rod and cylinder bottom, described cylinder bottom is fixedly mounted on described cylinder body one end, is provided with and prevents piston rod rotation and the guiding anti-rotation device with leading role in described cylinder body.
Further, described guiding anti-rotation device comprises the guide rod with guiding groove, the length direction of described guiding groove and the centerline axis parallel of guide rod, it is interior and vertical with described cylinder bottom that described guide rod is fixedly mounted on described cylinder body, described piston rod is installed with card key, and described card key is slidably mounted in described guiding groove.
Further, in order to reduce the volume of hydraulic jack, one end of described piston rod is provided with the blind hole coaxial with piston rod, and the described piston rod described guide rod that is slidably located in is outside, described card key is fixedly mounted on the inner peripheral surface of described piston rod, and described card key is slidably mounted in described guiding groove.
Further, for improving reliability and the stationarity of hydraulic jack anti-rotation device, described guide rod is coaxial with described piston rod.
Further, in order to more firmly install card key, the internal surface of described piston rod has mounting groove, and the cross section of described mounting groove is identical with the cross section of described card key, and described card key is fixedly mounted in described mounting groove.
Further, described card key is provided with the tapped hole with counter sink, and described card key is fixedly connected with described mounting groove by screw.
Further, in order to alleviate the gross weight of hydraulic jack, described guide rod is hollow structure.
The present invention arranges card key on the piston rod, arranges guiding groove on the guide bar, and card key is slidably mounted in guiding groove, by the constraint of guiding groove and card key, thus plays the effect preventing piston rod rotation.Because the guiding anti-rotation device in hydraulic jack retrains card key by guiding groove, have the function preventing piston rod rotation, therefore can ensure that hydraulic jack position is reliable, and structure is simple, processing is simple, is applicable to Long travel.
The invention has the beneficial effects as follows: Long travel hydraulic jack anti-rotation device of the present invention has good anti-rotating function, anti-rotation good reliability, and anti-rotation device operates steadily, structure is simple, processing is simple, be applicable to Long travel hydraulic jack.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is two-dimentional partial sectional view of the present invention;
Fig. 2 is the enlarged view at A place in Fig. 1 of the present invention.
In figure: 1. cylinder body, 2. piston rod, 3. cylinder bottom, 4. guiding groove, 5. guide rod, 6. card key, 7. screw.
Embodiment
The present invention will be further described in detail by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
A kind of Long travel hydraulic jack anti-rotation device as shown in Figure 1-2, comprise cylinder body 1, piston rod 2 and cylinder bottom 3, cylinder bottom 3 is fixedly mounted on cylinder body 1 one end, be provided with in cylinder body 1 and prevent piston rod 2 from rotating and the guiding anti-rotation device with leading role, guiding anti-rotation device comprises the guide rod 5 with guiding groove 4, the length direction of guiding groove 4 and the centerline axis parallel of guide rod 5, it is interior and vertical with cylinder bottom 3 that guide rod 5 is fixedly mounted on cylinder body 1, one end of piston rod 2 is provided with the blind hole coaxial with piston rod 2, piston rod 2 guide rod 5 that is slidably located in is outside, for improving reliability and the stationarity of hydraulic jack anti-rotation device, guide rod 5 is coaxial with piston rod 2.The internal surface of piston rod 2 has mounting groove, and the cross section of mounting groove is identical with the cross section of card key 6, and card key 6 is provided with the tapped hole with counter sink, and card key 6 is fixedly connected with mounting groove by screw 7, and card key 6 is slidably mounted in guiding groove 4.In order to alleviate the gross weight of hydraulic jack, guide rod 5 is hollow structure.
The present invention arranges card key 6 on piston rod 2, and guide rod 5 arranges guiding groove 4, and card key 6 is slidably mounted in guiding groove 4, by the constraint of guiding groove 4 with card key 6, thus plays the effect preventing piston rod 2 from rotating.Because the guiding anti-rotation device in hydraulic jack retrains card key 6 by guiding groove 4, have the function preventing piston rod 2 from rotating, therefore can ensure that hydraulic jack position is reliable, and structure is simple, processing is simple, is applicable to Long travel.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (7)
1. a Long travel hydraulic jack anti-rotation device, comprise cylinder body (1), piston rod (2) and cylinder bottom (3), described cylinder bottom (3) is fixedly mounted on described cylinder body (1) one end, it is characterized in that: be provided with in described cylinder body (1) and prevent piston rod (2) from rotating and have the guiding anti-rotation device of leading role.
2. Long travel hydraulic jack anti-rotation device as claimed in claim 1, it is characterized in that: described guiding anti-rotation device comprises the guide rod (5) with guiding groove (4), the length direction of described guiding groove (4) and the centerline axis parallel of guide rod (5), it is interior and vertical with described cylinder bottom (3) that described guide rod (5) is fixedly mounted on described cylinder body (1), described piston rod (2) is installed with card key (6), described card key (6) is slidably mounted in described guiding groove (4).
3. Long travel hydraulic jack anti-rotation device as claimed in claim 1, it is characterized in that: one end of described piston rod (2) is provided with the blind hole coaxial with piston rod (2), described piston rod (2) the described guide rod (5) that is slidably located in is outside, described card key (6) is fixedly mounted on the inner peripheral surface of described piston rod (2), and described card key (6) is slidably mounted in described guiding groove (4).
4. Long travel hydraulic jack anti-rotation device as claimed in claim 3, is characterized in that: described guide rod (5) is coaxial with described piston rod (2).
5. Long travel hydraulic jack anti-rotation device as claimed in claim 3, it is characterized in that: the internal surface of described piston rod (2) has mounting groove, the cross section of described mounting groove is identical with the cross section of described card key (6), and described card key (6) is fixedly mounted in described mounting groove.
6. Long travel hydraulic jack anti-rotation device as claimed in claim 5, it is characterized in that: described card key (6) is provided with the tapped hole with counter sink, described card key (6) is fixedly connected with described mounting groove by screw (7).
7. Long travel hydraulic jack anti-rotation device as claimed in claim 2, is characterized in that: described guide rod (5) is hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510601418.2A CN105114395A (en) | 2015-09-18 | 2015-09-18 | Long-stroke hydraulic oil cylinder rotation preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510601418.2A CN105114395A (en) | 2015-09-18 | 2015-09-18 | Long-stroke hydraulic oil cylinder rotation preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114395A true CN105114395A (en) | 2015-12-02 |
Family
ID=54662467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510601418.2A Pending CN105114395A (en) | 2015-09-18 | 2015-09-18 | Long-stroke hydraulic oil cylinder rotation preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114395A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907111A (en) * | 2018-08-20 | 2018-11-30 | 苏州苏铸成套装备制造有限公司 | A kind of moulding machine multiple contact oil cylinder |
| CN115681252A (en) * | 2022-10-25 | 2023-02-03 | 福建清满锻压科技股份有限公司 | Oil cylinder piston rod blank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074512A (en) * | 2001-08-30 | 2003-03-12 | Berumateikku Hanbai Kk | Linear guide air cylinder |
| CN201599273U (en) * | 2010-01-08 | 2010-10-06 | 烟台未来自动装备有限责任公司 | Ray-proof rotation-proof anti-seepage oil cylinder with magnetic switch |
| CN102748525A (en) * | 2012-07-13 | 2012-10-24 | 常州液压成套设备厂有限公司 | Ball valve servomotor with hydraulic locking device |
| CN102943786A (en) * | 2012-12-11 | 2013-02-27 | 湖南特力液压有限公司 | Hydraulic cylinder |
| CN205013439U (en) * | 2015-09-18 | 2016-02-03 | 常州液压成套设备厂有限公司 | Long stroke hydraulic cylinder rotational lock |
-
2015
- 2015-09-18 CN CN201510601418.2A patent/CN105114395A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074512A (en) * | 2001-08-30 | 2003-03-12 | Berumateikku Hanbai Kk | Linear guide air cylinder |
| CN201599273U (en) * | 2010-01-08 | 2010-10-06 | 烟台未来自动装备有限责任公司 | Ray-proof rotation-proof anti-seepage oil cylinder with magnetic switch |
| CN102748525A (en) * | 2012-07-13 | 2012-10-24 | 常州液压成套设备厂有限公司 | Ball valve servomotor with hydraulic locking device |
| CN102943786A (en) * | 2012-12-11 | 2013-02-27 | 湖南特力液压有限公司 | Hydraulic cylinder |
| CN205013439U (en) * | 2015-09-18 | 2016-02-03 | 常州液压成套设备厂有限公司 | Long stroke hydraulic cylinder rotational lock |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907111A (en) * | 2018-08-20 | 2018-11-30 | 苏州苏铸成套装备制造有限公司 | A kind of moulding machine multiple contact oil cylinder |
| CN115681252A (en) * | 2022-10-25 | 2023-02-03 | 福建清满锻压科技股份有限公司 | Oil cylinder piston rod blank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |