CN203130670U - Changeable oil-cylinder throttling device - Google Patents
Changeable oil-cylinder throttling device Download PDFInfo
- Publication number
- CN203130670U CN203130670U CN2013201198148U CN201320119814U CN203130670U CN 203130670 U CN203130670 U CN 203130670U CN 2013201198148 U CN2013201198148 U CN 2013201198148U CN 201320119814 U CN201320119814 U CN 201320119814U CN 203130670 U CN203130670 U CN 203130670U
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- China
- Prior art keywords
- oil
- cylinder
- piston rod
- throttling
- cylinder cap
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Abstract
The utility model discloses a changeable oil-cylinder throttling device comprising an oil cylinder barrel, a left cylinder cover and a right cylinder cover. A piston and a piston rod are arranged in the oil cylinder barrel. An oil inlet and an oil outlet are respectively arranged on the left cylinder cover and the right cylinder cover. A cylindrical sealing section and a frustum connected with the sealing section are arranged in the middle of the piston rod. An oil return opening and a throttling opening are arranged on the right side of the oil cylinder barrel. The oil cylinder barrel is communicated with the oil outlet through the oil return opening and the throttling opening. After pressure oil flows in via the oil inlet, the piston is driven to move rightwards along with the piston rod, and the pressure oil on the right side of the oil cylinder barrel flows out of the oil outlet via the oil return opening and the throttling opening synchronously. After the sealing section on the piston rod enters the oil return opening, the pressure oil can only flow out of the oil outlet through the throttling device, and purpose of controllable oil return throttling can be achieved by adjustment of an adjusting rod to control the size of cross section area of return oil of a throttling groove. The changeable oil-cylinder throttling device is simple in structure, convenient to adjust, remarkable in buffer effect and low in manufacture cost, and is used as a power source of interchanging driving of a rotating workbench; effect in use is remarkable.
Description
Technical field
The utility model relates to a kind of cylinder system, is specifically related to a kind of oil cylinder variable restrictor device.
Background technique
Hydraulic jack is when work, piston is done to come and go mobile in oil cylinder, when piston moves to the stroke afterbody when running into end cap, its travelling speed is from the unexpected vanishing of a certain numerical value, therefore produce very big impact, cause machine generation vibration and noise, piston to shake, make off-position inaccurate at stop position, also as easy as rolling off a log initiation mechanical failure.So the general place that action accuracy is had relatively high expectations, the control oil cylinder all needs to dispose damping device, namely will dispose special throttling components and parts, therefore causes hydraulic jack and fixture complex structure, cost height.
Therefore, need a kind of new technological scheme to solve the problems referred to above.
The model utility content
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of oil cylinder variable restrictor device, not only can reach the purpose of throttling, and simple in structure.
Technological scheme: for achieving the above object, a kind of oil cylinder variable restrictor device of the present utility model, comprise cylinder tube, the left cylinder cap that is connected with cylinder tube and right cylinder cap, be provided with the piston rod that drives the piston motion in the described cylinder tube, left side cylinder cap is provided with oil inlet hole, and right cylinder cap is provided with oil outlet, and the piston rod middle part is provided with columned closed section and the frustum that is connected with closed section, the cylinder tube right side is provided with return opening and restriction, and cylinder tube is communicated with oil outlet by return opening and restriction respectively.
Wherein, described restriction is arranged on right cylinder cap left end, and right cylinder cap bottom is provided with adjustable lever, and the top of adjustable lever is provided with throttling groove and center hole.
Described piston rod right-hand member is provided with screw thread, and piston rod is connected with adjusting to overlap with right hinge ear by screw thread.
Described left cylinder cap is provided with left side hinge ear and pull bar, and described pull bar connects into left cylinder cap, right cylinder cap and cylinder tube as a whole.
Beneficial effect: a kind of oil cylinder variable restrictor device of the present utility model, after pressure oil entered from oil inlet hole, piston moved to right together with piston rod, and the pressure oil on oil cylinder right side flows out oil outlet simultaneously by return opening and restriction; After the closed section on the piston rod entered return opening, pressure oil can only flow out oil outlet by throttling arrangement, can control the sectional area size of throttling groove oil return by adjusting adjustable lever, reached the purpose of controlled meter out.The utility model since the variable restrictor structural design on the cylinder cap of oil cylinder, therefore have characteristics simple in structure, easy to adjust, that cushioning effect is remarkable, cost is low, be used for the power source that the conduct transposition drives on the rotary table, can produce good using effect.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in Figure 1, a kind of oil cylinder variable restrictor device of the present utility model, comprise cylinder tube 17, the left cylinder cap 2 that is connected with cylinder tube 17 and right cylinder cap 8, described cylinder tube is provided with the piston rod 9 that drives piston 4 motions for 17 li, left side cylinder cap 2 is provided with oil inlet hole 3 and pull bar 18, right cylinder cap 8 is provided with oil outlet 7, piston rod 9 middle parts are provided with columned closed section 5 and the frustum 6 that is connected with closed section 5, cylinder tube 17 right sides are provided with return opening 16 and restriction 15, cylinder tube 17 is communicated with oil outlet 7 by return opening 16 and restriction 15 respectively, be provided with throttling groove 14 and center hole between restriction 15 and the oil outlet 7, described center hole is positioned at adjustable lever 13.
In the utility model, pull bar 18 connects into left cylinder cap 2, right cylinder cap 8 and cylinder tube 17 as a whole, forms straight line and moves cylinder apparatus.The right-hand member of piston rod 9 has screw thread, and right hinge ear 10 is contained in respectively on the screw thread with adjusting cover 12, can carry out the position vertically respectively and adjust with fixing, in order to change the working stroke of oil cylinder.Adjusting cover 12 can be locked at by the effect of locking body 11 and bolt on the screw thread of piston rod 9 firmly, and right hinge ear 10 also can be locked at by the effect of bolt on the screw thread of piston rod 9 firmly, drives as cylinder tube to connect.Be provided with left side hinge ear 1 at left cylinder cap 2, as the device of fixed oil cylinder tube.
In the utility model, when pressure oil enters the cylinder tube 17 from oil inlet hole 3, piston 4 left side pressure are greater than the right side, cause piston 4 to move to right together with piston rod 9, the pressure oil on right side flows out oil outlet 7 by return opening 16 and restriction 15 in the cylinder tube 17, when frustum 6 and the closed section 5 of piston rod 9 enters in the return opening 16, closed section 5 is blocked return opening 16, this moment, pressure oil only arrived oil outlet 7 by restriction 15 through throttling groove 14 and center hole, adjust the opening area size of throttling groove 14 and restriction 15 by rotation adjustable lever 13, with the control recirculating oil quantity what, reach the purpose of controlled meter out.
The above only is preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. oil cylinder variable restrictor device, it is characterized in that: comprise cylinder tube (17), the left cylinder cap (2) that is connected with cylinder tube (17) and right cylinder cap (8), described cylinder tube (17) lining is provided with the piston rod (9) that drives piston (4) motion, left side cylinder cap (2) is provided with oil inlet hole (3), right cylinder cap (8) is provided with oil outlet (7), piston rod (9) middle part is provided with columned closed section (5) and the frustum (6) that is connected with closed section (5), cylinder tube (17) right side is provided with return opening (16) and restriction (15), and cylinder tube (17) is communicated with oil outlet (7) by return opening (16) and restriction (15) respectively.
2. oil cylinder variable restrictor device according to claim 1, it is characterized in that: described restriction (15) is arranged on right cylinder cap (8) left end, right cylinder cap (8) bottom is provided with adjustable lever (13), and the top of adjustable lever (13) is provided with throttling groove (14) and center hole.
3. oil cylinder variable restrictor device according to claim 1, it is characterized in that: described piston rod (9) right-hand member is provided with screw thread, and piston rod (9) is by screw thread and right hinge ear (10) and adjust and overlap (12) and be connected.
4. oil cylinder variable restrictor device according to claim 1 is characterized in that: described left cylinder cap (2) is provided with left side hinge ear (1).
5. according to claim 1 or 4 described oil cylinder variable restrictor devices, it is characterized in that: described left cylinder cap (2) is provided with pull bar (18), and described pull bar (18) connects into left cylinder cap (2), right cylinder cap (8) and cylinder tube (17) as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201198148U CN203130670U (en) | 2013-03-15 | 2013-03-15 | Changeable oil-cylinder throttling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201198148U CN203130670U (en) | 2013-03-15 | 2013-03-15 | Changeable oil-cylinder throttling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130670U true CN203130670U (en) | 2013-08-14 |
Family
ID=48938650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201198148U Expired - Fee Related CN203130670U (en) | 2013-03-15 | 2013-03-15 | Changeable oil-cylinder throttling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673615A (en) * | 2016-03-02 | 2016-06-15 | 庆安集团有限公司 | Actuating cylinder with buffer devices at two ends |
-
2013
- 2013-03-15 CN CN2013201198148U patent/CN203130670U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673615A (en) * | 2016-03-02 | 2016-06-15 | 庆安集团有限公司 | Actuating cylinder with buffer devices at two ends |
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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: 20130814 Termination date: 20190315 |