CN204493339U - A kind of range-adjustable buffer plunger double-acting hydraulic cylinder - Google Patents
A kind of range-adjustable buffer plunger double-acting hydraulic cylinder Download PDFInfo
- Publication number
- CN204493339U CN204493339U CN201420433665.7U CN201420433665U CN204493339U CN 204493339 U CN204493339 U CN 204493339U CN 201420433665 U CN201420433665 U CN 201420433665U CN 204493339 U CN204493339 U CN 204493339U
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- cylinder
- cap
- piston rod
- sealing member
- support ring
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Abstract
The utility model relates to hydraulic press field, be specifically related to a kind of range-adjustable buffer plunger double-acting hydraulic cylinder, comprise cylinder barrel, cylinder cap and cylinder bottom, piston rod is connected with in cylinder barrel, support ring I is provided with between cylinder barrel and piston rod, support ring is provided with piston seal dedicated sealing member I and piston seal dedicated sealing member II, piston rod left end is provided with spacing thimble, hexagon socket cap head screw I is provided with on the left of cylinder barrel, buffer cavity throttle orifice left end is connected with hexagonal socket head plug, combination seal packing ring and venting hydraulic fluid port, spacing thimble is provided with range-adjustable buffer plunger, range-adjustable buffer plunger is provided with wire circlip and transformation of the way hexagon socket cap head screw, cylinder bottom lower end is provided with hydraulic fluid port A, support ring II is provided with between cylinder cap and piston rod, support ring II is provided with rod seal dedicated sealing member I and rod seal dedicated sealing member II, cylinder cap is provided with hexagon socket cap head screw II, cylinder cap lower end is provided with O type circle and back-up ring, cylinder cap bottom is provided with hydraulic fluid port B.
Description
Technical field
The utility model relates to hydraulic press field, is specifically related to a kind of range-adjustable buffer plunger double-acting hydraulic cylinder.
Background technique
Hydraulic press uses double-acting hydraulic cylinder have certain quality due to piston rod and the slide block driven and mould, under hydraulic coupling drives, have very large momentum during cylinder backhaul.Can mechanical collision be caused when piston reaches cylinder bottom, produce very large impact force and noise.Present common solution arranges damping device at cylinder bottom place, and this comprises valve throttling buffering and cylinder throttling buffering etc., and Main Function is, by throttling, the kinetic transformation of piston rod and drivening piece is become heat energy, reduces piston rod speed, until be zero.Because of valve throttling buffering apparatus design, manufacture complicated, cost is high, so oil hydraulic cylinder generally adopts cylinder throttling buffering device now, but existing be no matter the cushion stroke of permanent throttling buffering device or variable throttling damping device is all fixed length, also just say that cushion stroke can not adjust, present throttling buffering apparatus design is because of cannot be comprehensive, embody the actual applying working condition of oil hydraulic cylinder in the design exactly, and the also change in certain interval of some technical specifications, therefore designing requirement and actual effect have gap, do not accomplish careful design, hydraulic oil viscosity is very large on cushioning effect impact, the hydraulic press general summer in winter all needs the hydraulic oil changing different viscosities to reduce viscosity B coefficent as far as possible, however, engineering is also kept away the viscosity B coefficent of unavoidable hydraulic oil, operating time length as each in hydraulic press is different, capital produces different temperature rises, and buffering inherently produces temperature rise, hydraulic fluid temperature is higher, viscosity is lower, cushioning effect is poorer.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of range-adjustable buffer plunger double-acting hydraulic cylinder.
For solving the problems of the technologies described above, the utility model provides following technological scheme: a kind of range-adjustable buffer plunger double-acting hydraulic cylinder, comprise cylinder barrel, cylinder cap and cylinder bottom, piston rod is connected with in described cylinder barrel, support ring I is provided with between described cylinder barrel and piston rod, described support ring I is provided with piston seal dedicated sealing member I and piston seal dedicated sealing member II, described piston rod left end is provided with spacing thimble, hexagon socket cap head screw I is provided with on the left of described cylinder barrel, buffer cavity throttle orifice is provided with in described cylinder bottom, described buffer cavity throttle orifice left end is connected with hexagonal socket head plug, combination seal packing ring and venting hydraulic fluid port, described spacing thimble is provided with range-adjustable buffer plunger, described range-adjustable buffer plunger is provided with wire circlip and transformation of the way hexagon socket cap head screw, described cylinder bottom lower end is provided with hydraulic fluid port A, support ring II is provided with between described cylinder cap and piston rod, described support ring II is provided with rod seal dedicated sealing member I and rod seal dedicated sealing member II, described cylinder cap is provided with hexagon socket cap head screw II, described cylinder cap lower end is provided with O type circle and back-up ring, described cylinder cap bottom is provided with hydraulic fluid port B, described cylinder barrel upper end is provided with mounting flange, piston rod right-hand member is provided with pin shaft hole, spring washer is provided with between cylinder cap and hexagon socket cap head screw II, cylinder cap is provided with dust-proof seal ring.
The beneficial effect that the utility model compared with prior art has is: the cushion stroke of the design's range-adjustable buffer plunger double-acting hydraulic cylinder is adjustable, when the every factor affecting cushioning effect changes, can by adjustment cushion stroke, when taking into account cylinder and starting, oil hydraulic cylinder is made to obtain optimized buffer effect at cylinder backhaul destination county, by adjustment cushion stroke, to because designing deficiency, manufacturing error, hydraulic oil viscosity changes, variation of ambient temperature, the initial velocity change of buffering, the mass change that piston rod drives, the cushioning effect difference that the factors such as each portion change in friction force cause or buffering are excessively carried out simple, be suitable for, effective adjustment, when taking into account cylinder and starting, reach optimized buffer effect.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the overall structure schematic diagram under the utility model buffer status;
Fig. 3 is that in the utility model, the overall structure schematic diagram under state made by spacing thimble;
Fig. 4 is the overall structure schematic diagram in the utility model under spacing thimble retracted mode;
Fig. 5 is the overall structure schematic diagram of range-adjustable buffer plunger in the utility model;
Fig. 6 is the right elevation of Fig. 3;
Fig. 7 is the left view of Fig. 5;
Fig. 8 is the right elevation of Fig. 5.
Number in the figure is: 1-hydraulic fluid port A, 2-wire circlip, 3-range-adjustable buffer plunger, 4-changes a social system hexagon socket cap head screw, 5-hexagonal socket head plug, 6-combination seal packing ring, 7-exits hydraulic fluid port, 8-buffer cavity throttle orifice, 9-cylinder bottom, 10-hexagon socket cap head screw I, the spacing thimble of 11-, 12-support ring I, 13-piston seal dedicated sealing member I, 14-piston seal dedicated sealing member II, 15-cylinder barrel, 16-mounting flange, 17-support ring II, 18-rod seal dedicated sealing member I, 19-rod seal dedicated sealing member II, 20-spring washer, 21-hexagon socket cap head screw II, 22-cylinder cap, 23-dust-proof seal ring, 24-piston rod, 25-O type circle and back-up ring, 26-hydraulic fluid port B, 27-pin shaft hole.
Embodiment
Known with reference to Fig. 1-8, a kind of range-adjustable buffer plunger double-acting hydraulic cylinder, comprise cylinder barrel 15, cylinder cap 22 and cylinder bottom 9, piston rod 24 is connected with in described cylinder barrel 15, support ring I 12 is provided with between described cylinder barrel 15 and piston rod 24, described support ring I 12 is provided with piston seal dedicated sealing member I 13 and piston seal dedicated sealing member II 14, described piston rod 24 left end is provided with spacing thimble 11, hexagon socket cap head screw I 10 is provided with on the left of described cylinder barrel 15, buffer cavity throttle orifice 8 is provided with in described cylinder bottom 9, described buffer cavity throttle orifice 8 left end is connected with hexagonal socket head plug 5, combination seal packing ring 6 and venting hydraulic fluid port 7, described spacing thimble 11 is provided with range-adjustable buffer plunger 3, described range-adjustable buffer plunger 3 is provided with wire circlip 2 and transformation of the way hexagon socket cap head screw 4, described cylinder bottom 9 lower end is provided with hydraulic fluid port A1, support ring II 17 is provided with between described cylinder cap 22 and piston rod 24, described support ring II 17 is provided with rod seal dedicated sealing member I 18 and rod seal dedicated sealing member II 19, described cylinder cap 22 is provided with hexagon socket cap head screw II 21, described cylinder cap 22 lower end is provided with O type circle and back-up ring 25, described cylinder cap 22 bottom is provided with hydraulic fluid port B26, described cylinder barrel 15 upper end is provided with mounting flange 16, described piston rod 24 right-hand member is provided with pin shaft hole 27, spring washer 20 is provided with between described cylinder cap 22 and hexagon socket cap head screw II 21, described cylinder cap 22 is provided with dust-proof seal ring 23.
The cushion stroke of the design's range-adjustable buffer plunger double-acting hydraulic cylinder is adjustable, when the every factor affecting cushioning effect changes, can by adjustment cushion stroke, when taking into account cylinder and starting, oil hydraulic cylinder is made to obtain optimized buffer effect at cylinder backhaul destination county, by adjustment cushion stroke, to because designing deficiency, manufacturing error, hydraulic oil viscosity changes, variation of ambient temperature, the initial velocity change of buffering, the mass change that piston rod drives, the cushioning effect difference that the factors such as each portion change in friction force cause or buffering are excessively carried out simple, be suitable for, effective adjustment, when taking into account cylinder and starting, reach optimized buffer effect.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (1)
1. a range-adjustable buffer plunger double-acting hydraulic cylinder, it is characterized in that, comprise cylinder barrel, cylinder cap and cylinder bottom, piston rod is connected with in described cylinder barrel, support ring I is provided with between described cylinder barrel and piston rod, described support ring I is provided with piston seal dedicated sealing member I and piston seal dedicated sealing member II, described piston rod left end is provided with spacing thimble, hexagon socket cap head screw I is provided with on the left of described cylinder barrel, buffer cavity throttle orifice is provided with in described cylinder bottom, described buffer cavity throttle orifice left end is connected with hexagonal socket head plug, combination seal packing ring and venting hydraulic fluid port, described spacing thimble is provided with range-adjustable buffer plunger, described range-adjustable buffer plunger is provided with wire circlip and transformation of the way hexagon socket cap head screw, described cylinder bottom lower end is provided with hydraulic fluid port A, support ring II is provided with between described cylinder cap and piston rod, described support ring II is provided with rod seal dedicated sealing member I and rod seal dedicated sealing member II, described cylinder cap is provided with hexagon socket cap head screw II, described cylinder cap lower end is provided with O type circle and back-up ring, described cylinder cap bottom is provided with hydraulic fluid port B, described cylinder barrel upper end is provided with mounting flange, piston rod right-hand member is provided with pin shaft hole, spring washer is provided with between cylinder cap and hexagon socket cap head screw II, cylinder cap is provided with dust-proof seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433665.7U CN204493339U (en) | 2014-08-04 | 2014-08-04 | A kind of range-adjustable buffer plunger double-acting hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433665.7U CN204493339U (en) | 2014-08-04 | 2014-08-04 | A kind of range-adjustable buffer plunger double-acting hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493339U true CN204493339U (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420433665.7U Expired - Fee Related CN204493339U (en) | 2014-08-04 | 2014-08-04 | A kind of range-adjustable buffer plunger double-acting hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493339U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402084A (en) * | 2016-10-30 | 2017-02-15 | 马鞍山市裕华机械制造有限公司 | Double-acting hydraulic cylinder with travel-adjustable buffer plunger |
| CN107687555A (en) * | 2017-11-02 | 2018-02-13 | 天津安固密封技术有限公司 | A kind of novel double liquid cylinder pressure rope tension unit |
| CN108035935A (en) * | 2017-12-24 | 2018-05-15 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of electrohydraulic actuator buffer piston pushing meanss |
| CN109340212A (en) * | 2018-12-03 | 2019-02-15 | 徐州徐工液压件有限公司 | A kind of chute type keeps off stroke hanging plate landing leg hydraulic cylinder more |
| CN111894941A (en) * | 2020-08-07 | 2020-11-06 | 中睿智能技术(东莞)有限公司 | Adjustable high-speed cylinder |
| CN114673710A (en) * | 2022-03-01 | 2022-06-28 | 番禺珠江钢管（连云港）有限公司 | Corrosion-resistant water tank structure with bushing |
-
2014
- 2014-08-04 CN CN201420433665.7U patent/CN204493339U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402084A (en) * | 2016-10-30 | 2017-02-15 | 马鞍山市裕华机械制造有限公司 | Double-acting hydraulic cylinder with travel-adjustable buffer plunger |
| CN107687555A (en) * | 2017-11-02 | 2018-02-13 | 天津安固密封技术有限公司 | A kind of novel double liquid cylinder pressure rope tension unit |
| CN108035935A (en) * | 2017-12-24 | 2018-05-15 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of electrohydraulic actuator buffer piston pushing meanss |
| CN109340212A (en) * | 2018-12-03 | 2019-02-15 | 徐州徐工液压件有限公司 | A kind of chute type keeps off stroke hanging plate landing leg hydraulic cylinder more |
| CN111894941A (en) * | 2020-08-07 | 2020-11-06 | 中睿智能技术(东莞)有限公司 | Adjustable high-speed cylinder |
| CN111894941B (en) * | 2020-08-07 | 2022-04-22 | 中睿智能技术(东莞)有限公司 | Adjustable high-speed cylinder |
| CN114673710A (en) * | 2022-03-01 | 2022-06-28 | 番禺珠江钢管（连云港）有限公司 | Corrosion-resistant water tank structure with bushing |
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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 |
Granted publication date: 20150722 Termination date: 20160804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |