CN203756643U - Hydraulic cylinder allowing buffer distance and speed adjustment - Google Patents
Hydraulic cylinder allowing buffer distance and speed adjustment Download PDFInfo
- Publication number
- CN203756643U CN203756643U CN201420143717.7U CN201420143717U CN203756643U CN 203756643 U CN203756643 U CN 203756643U CN 201420143717 U CN201420143717 U CN 201420143717U CN 203756643 U CN203756643 U CN 203756643U
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- CN
- China
- Prior art keywords
- cylinder
- adjusting screw
- buffer distance
- piston rod
- cylinder bottom
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
A hydraulic cylinder allowing buffer distance and speed adjustment comprises a cylinder body, a piston rod, a cylinder cover, a piston and a cylinder bottom; a coaxial installing hole is formed in the lower middle portion of the piston rod; a buffer sleeve is arranged in the installing hole; the adjustable buffer sleeve is connected with an adjusting screw through a thread pair; the adjusting screw extends out of the cylinder bottom; a position located in the cylinder bottom, which is corresponding to the end surface of the piston rod, is provided with a fixing sleeve; an axial hole and a radial hole are formed in the adjusting screw, wherein the axial hole and the radial hole are communicated with each other; a hydraulic channel is formed inside the cylinder bottom and communicated with the radial hole; an end opening of the hydraulic channel is provided with a one-way valve; the lower end of the adjusting screw is provided with an adjusting nut. According to the hydraulic cylinder allowing the buffer distance and speed adjustment, the lower middle portion of the piston rod is provided with the adjustable buffer sleeve which is connected with the adjusting screw and accordingly the adjustment on the buffer distance and the buffer speed can be achieved within a certain range in a rodless cavity portion, the working efficiency is increased, and the hydraulic cylinder can be flexible and comprehensive in performance during usage.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to hydraulic machinery, particularly the oil hydraulic cylinder of a kind of adjustable buffer distance and speed.
Background technique:
Oil hydraulic cylinder is widely used in engineering machinery as dynamical element.In order to prevent from use occurring the phenomenon of " hitting cylinder ", prior art arranges damping device in oil hydraulic cylinder, but damping device is fixed structure, the effective length of buffering is unadjustable, in actual use, buffer distance often can not adapt to need of work, and buffer distance is too short does not reach buffering requirement, the long manufacturing efficiency that can reduce again of buffer distance, affects the duration.
Summary of the invention:
The purpose of this utility model is to provide the oil hydraulic cylinder of a kind of adjustable buffer distance and speed, and described this adjustable buffer distance and the oil hydraulic cylinder of speed will solve the buffer distance of oil hydraulic cylinder in prior art and the technical problem that speed can not regulate.
The oil hydraulic cylinder of this adjustable buffer distance of the present utility model and speed, comprise cylinder body, piston rod, cylinder cap, piston and cylinder bottom, described cylinder bottom is connected to the lower end of described cylinder body, described cylinder cap is connected to the upper end of cylinder body, described piston is arranged in cylinder body, described piston passes cylinder cap and is connected with piston, wherein, in the lower end surface of described piston rod, be provided with a blind hole, described blind hole is coaxial with piston rod, in described blind hole, be provided with a cushion collar, the lower end of described cushion collar is connected with an adjusting screw rod by screw pair, described adjusting screw rod is through described cylinder bottom, in adjusting screw rod, be provided with an axial bore and a radial hole, described axial bore is communicated with described radial hole, in cylinder bottom, be provided with hydraulic pressure runner, described hydraulic channel is communicated with radial hole, hydraulic channel is provided with one-way valve in the outlet port of cylinder bottom, the lower end of adjusting screw rod is provided with adjusting nut.
Further, be provided with a fixed cover in cylinder bottom upper-end surface, described fixed cover is coaxial with piston rod.
Further, the hydraulic channel of cylinder bottom includes two outlets, and two outlet ports are provided with the one-way valve described in separately.
Further, cylinder body is made up of seamless steel pipe.
The utility model and prior art are compared, and its effect is actively with obvious.The utility model arranges cushion collar in piston rod, and cushion collar is connected with adjusting screw rod, realizes the adjusting of buffer distance by the rotation of adjusting screw rod; Regulate the aperture of the one-way valve of cylinder bottom, can carry out according to actual service condition the adjusting of buffer speed.The utility model has been realized the adjusting of buffer distance and buffer speed within the specific limits, has improved working efficiency, makes oil hydraulic cylinder in use more flexible, and performance is more comprehensive.
Brief description of the drawings:
Fig. 1 is the structural representation of the oil hydraulic cylinder of adjustable buffer distance of the present utility model and speed.
Fig. 2 is the schematic diagram of the piston rod in the oil hydraulic cylinder of adjustable buffer distance of the present utility model and speed.
Fig. 3 is the schematic diagram of the adjustable cushion collar in the oil hydraulic cylinder of adjustable buffer distance of the present utility model and speed.
Fig. 4 is the schematic diagram of the adjusting screw rod in the oil hydraulic cylinder of adjustable buffer distance of the present utility model and speed.
Fig. 5 is the schematic diagram of the cylinder bottom in the oil hydraulic cylinder of adjustable buffer distance of the present utility model and speed.
Embodiment:
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, the oil hydraulic cylinder of adjustable buffer distance of the present utility model and speed, comprise cylinder body 1, piston rod 2, cylinder cap 3, piston 4 and cylinder bottom 5, piston rod 2 upper ends are provided with bar head 6, wherein, be provided with coaxial mounting hole in described piston rod 2 middle and lower parts, in described mounting hole, be provided with adjustable cushion collar 7, described adjustable cushion collar 7 is connected with adjusting screw rod 8 by screw pair, described adjusting screw rod 8 stretches out from described cylinder bottom 5, in described cylinder bottom 5, be provided with fixed cover 9 with described tailpiece of the piston rod face corresponding part, in described adjusting screw rod 8, be provided with axial bore 81 and radial hole 82, axial bore is blind hole, Jing Xiangkongshi through hole, described axial bore 81 and radial hole 82 are connected, in described cylinder bottom 5, be provided with hydraulic channel, described hydraulic channel is communicated with described radial hole, described hydraulic channel port is provided with one-way valve 10, described adjusting screw rod lower end is provided with adjusting nut 11.
Further, be provided with two ports at the hydraulic channel of described cylinder bottom, two described ports are respectively provided with an one-way valve.
Further, described cylinder body is seamless steel pipe, cylinder body middle part and its upper end welding.
By process adjustable cushion collar at piston rod, endoporus is installed, adjustable cushion collar is installed in the mounting hole of piston rod, adjustable cushion collar is connected with adjusting screw rod, can carry out by the rotation of adjusting screw rod the adjusting of buffer distance.Two one-way throttle valves that flow is different are installed by cylinder bottom portion, can carry out according to actual service condition the adjusting of buffer speed.
Claims (4)
1. the oil hydraulic cylinder of an adjustable buffer distance and speed, comprise cylinder body, piston rod, cylinder cap, piston and cylinder bottom, described cylinder bottom is connected to the lower end of described cylinder body, described cylinder cap is connected to the upper end of cylinder body, described piston is arranged in cylinder body, described piston passes cylinder cap and is connected with piston, it is characterized in that: in the lower end surface of described piston rod, be provided with a blind hole, described blind hole is coaxial with piston rod, in described blind hole, be provided with a cushion collar, the lower end of described cushion collar is connected with an adjusting screw rod by screw pair, described adjusting screw rod is through described cylinder bottom, in adjusting screw rod, be provided with an axial bore and a radial hole, described axial bore is communicated with described radial hole, in cylinder bottom, be provided with hydraulic pressure runner, described hydraulic channel is communicated with radial hole, hydraulic channel is provided with one-way valve in the outlet port of cylinder bottom, the lower end of adjusting screw rod is provided with adjusting nut.
2. the oil hydraulic cylinder of adjustable buffer distance as claimed in claim 1 and speed, is characterized in that: in cylinder bottom upper-end surface, be provided with a fixed cover, described fixed cover is coaxial with piston rod.
3. the oil hydraulic cylinder of adjustable buffer distance as claimed in claim 1 and speed, is characterized in that: the hydraulic channel of cylinder bottom includes two outlets, and two outlet ports are provided with the one-way valve described in separately.
4. the oil hydraulic cylinder of adjustable buffer distance as claimed in claim 1 and speed, is characterized in that: cylinder body is made up of seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420143717.7U CN203756643U (en) | 2014-03-27 | 2014-03-27 | Hydraulic cylinder allowing buffer distance and speed adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420143717.7U CN203756643U (en) | 2014-03-27 | 2014-03-27 | Hydraulic cylinder allowing buffer distance and speed adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756643U true CN203756643U (en) | 2014-08-06 |
Family
ID=51251924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420143717.7U Expired - Fee Related CN203756643U (en) | 2014-03-27 | 2014-03-27 | Hydraulic cylinder allowing buffer distance and speed adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756643U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863922A (en) * | 2015-05-29 | 2015-08-26 | 大连宏远气动液压船舶辅机有限公司 | Speed changing/regulating hydraulic cylinder device |
| CN105773345A (en) * | 2016-03-29 | 2016-07-20 | 韩金桥 | Feeding control device for grinding head of optical lens |
| CN107288952A (en) * | 2017-08-08 | 2017-10-24 | 常州液压成套设备厂有限公司 | External regulation type stroke buffers servomotor |
-
2014
- 2014-03-27 CN CN201420143717.7U patent/CN203756643U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863922A (en) * | 2015-05-29 | 2015-08-26 | 大连宏远气动液压船舶辅机有限公司 | Speed changing/regulating hydraulic cylinder device |
| CN105773345A (en) * | 2016-03-29 | 2016-07-20 | 韩金桥 | Feeding control device for grinding head of optical lens |
| CN105773345B (en) * | 2016-03-29 | 2019-04-05 | 韩金桥 | Optical mirror slip is ground bistrique cutter feeding control device |
| CN107288952A (en) * | 2017-08-08 | 2017-10-24 | 常州液压成套设备厂有限公司 | External regulation type stroke buffers servomotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20200327 |