CN101178085A - Controlled stroke cylinder - Google Patents
Controlled stroke cylinder Download PDFInfo
- Publication number
- CN101178085A CN101178085A CNA2007101567298A CN200710156729A CN101178085A CN 101178085 A CN101178085 A CN 101178085A CN A2007101567298 A CNA2007101567298 A CN A2007101567298A CN 200710156729 A CN200710156729 A CN 200710156729A CN 101178085 A CN101178085 A CN 101178085A
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- Prior art keywords
- cylinder
- piston
- piston rod
- end cover
- rear end
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- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract 4
- 230000001939 inductive effect Effects 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention provides a controllable stroke cylinder, comprising a front end cover, a rear end cover, a cylinder, and a piston. The two ends of the cylinder are respectively and hermetically connected with the front end cover and the rear end cover; the front end cover is provided with a first ventilation port; the rear end cover is provided with a second ventilation port; the piston is arranged in the cylinder in a sliding way; one end of the piston is connected with the piston; the other end of the piston rod is extended out of the opening of the front end cover or the rear end cover; the piston rod is hermetically connected with the opening; the first ventilation port and the second ventilation port are connected with a conversion valve; the piston is provided with an inductive element; a sensor matched with the inductive element can be arranged at the periphery of the cylinder in a sliding way; the end cover of one end extended out of the piston rod is provided with a cylinder brake; the signal outlet wire of the sensor is connected with the air inlet control valve of the cylinder brake; the cylinder brake and the piston rod form a braking and matching relationship. The invention provides a controllable stroke cylinder which can be prearranged with piston stroke and the cylinder stroke can be adjusted according to the requirement.
Description
(1) technical field
The present invention relates to a kind of cylinder, relate in particular to a kind of controlled stroke cylinder that preestablishes piston stroke.
(2) technical background
Common in the market cylinder comprises front cover, rear end cover, cylinder barrel, piston, the cylinder barrel two ends are tightly connected with front cover, rear end cover respectively, piston is located in the cylinder barrel slidably, piston rod one end is connected with piston, stretch out in the perforate of one of the other end the past, rear end cover, piston rod and described perforate are tightly connected, and this traditional cylinder can only stop at stroke top and terminal position, the cylinder stroke can not be regulated as required, lacks controllability.
(3) summary of the invention
In order to solve the uncontrollable deficiency of its piston stroke of existing cylinder, the present invention proposes a kind of predeterminable piston stroke, the cylinder stroke is adjustable, simple in structure, good braking effect controlled stroke cylinder.
The present invention adopts following technological scheme:
A kind of controlled stroke cylinder, comprise front cover, rear end cover, cylinder barrel, piston, the cylinder barrel two ends are tightly connected with front cover, rear end cover respectively, described front cover is provided with first ventilating hole, described rear end cover is provided with second ventilating hole, piston is located in the cylinder barrel slidably, piston rod one end is connected with piston, stretches out in the perforate of one of the other end the past, rear end cover, and piston rod and described perforate are tightly connected; Described first ventilating hole is connected a selector valve with second ventilating hole, and described piston is by this selector valve control commutation; Described piston is provided with sense cell, the sensor that cooperates with described sense cell is located at the periphery of cylinder barrel slippingly, piston rod stretches out on the end cap of a side cylinder break is housed, the output line of described sensor connects the air intake control valve of the moving device of cylinder, and described cylinder break and piston rod form the braking matching relationship.
Further, described cylinder break comprises small-sized cylinder and the eccentric hoop of being controlled by small-sized cylinder, described piston rod stretches out from the center hole of eccentric hoop, described eccentric hoop is located in the groove suitable in the corresponding end cap rotationally, described eccentric hoop by about two lobe braking plates symmetries form, the upper-end surface of two braking plates has extended upward extension edge, clamping has described small-sized cylinder between two extension edges, be provided with two pistons in the cavity of small-sized cylinder dorsad, the piston rod of two-piston stretches out casing wall fixedlys connected with the extension edge of respective side, is connected with spring between the lower end surface of two braking plates.
Preferably, described selector valve is a switch valve with two-position and five-pass, and described air intake control valve is the two-position three way solenoid directional control valve.
Preferably, described sense cell is a magnetite.
Preferably, be connected with screw rod between described front cover and the rear end cover, slide block is located on the described screw rod slidably, on the described slide block sensor is housed.
Further, described piston is provided with piston packing and guide ring, and the internal surface of the end cap that is connected with piston rod is equipped with seal ring and guide sleeve.
Technical conceive of the present invention is: according to the needs of work to the stroke of cylinder, pre-set sensing station, when cylinder piston moves to this position, the signal that magnetite on the piston sends can be by sensor senses, the air intake control valve action of sensor control cylinder break, air intake control valve is controlled small-sized cylinder, small-sized cylinder control eccentric hoop position, come the brake piston bar with eccentric hoop, piston rod moves no longer forward; Selector valve commutation this moment, cylinder turnover gas direction changes, the commutation of control system control air intake control valve, braking is disengaged, and piston and so forth, is realized the control to the cylinder stroke toward swivel motion.
Beneficial effect of the present invention is: predeterminable piston stroke, cylinder stroke can be regulated as required, simple in structure, good braking effect.
(4) description of drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a plan view of the present invention.
Fig. 3 is the braking principle schematic representation of break.
Fig. 4 is the brake off principle schematic of break.
(5) embodiment
The present invention is described further below in conjunction with accompanying drawing.
With reference to accompanying drawing: a kind of controlled stroke cylinder, comprise front cover 1, rear end cover 2, cylinder barrel 3, piston 4, cylinder barrel 3 two ends are tightly connected with front cover 1, rear end cover 2 respectively, described front cover 1 is provided with first ventilating hole 18, described rear end cover 2 is provided with second ventilating hole 19, piston 4 is located in the cylinder barrel 3 slidably, piston rod 5 one ends are connected with piston 4, and the other end stretches out from the perforate of front cover 2, and piston rod 5 is tightly connected with described perforate; Described first ventilating hole 18 is connected switch valve with two-position and five-pass with second ventilating hole 19, described piston 4 is provided with sense cell, described sense cell is a magnetite 6, the sensor 7 that cooperates with described sense cell is located at the periphery of cylinder barrel 3 slippingly, piston rod stretches out on the end cap of a side cylinder break is housed, the output line of described sensor 7 connects the air intake control valve of cylinder break, described air intake control valve is the two-position three way solenoid directional control valve, and described cylinder break and piston rod form the braking matching relationship.
Described cylinder break 16 comprises small-sized cylinder 13 and the eccentric hoop of being controlled by small-sized cylinder 13, described piston rod 5 stretches out from the center hole of eccentric hoop 14, described eccentric hoop 14 is located in the groove 20 suitable in the corresponding end cap rotationally, described eccentric hoop 14 by about two lobe braking plates symmetries form, the upper-end surface of two braking plates has extended upward extension edge 15, clamping has described small-sized cylinder 13 between two extension edges 15, be provided with two pistons in the cavity of small-sized cylinder 13 dorsad, the piston rod of two-piston stretches out casing wall fixedlys connected with the extension edge 15 of respective side, is connected with spring 17 between the lower end surface of two braking plates.
Be connected with screw rod between described front cover 1 and the rear end cover 2, slide block 8 is located on the described screw rod slidably, on the described slide block 8 sensor 7 is housed.
Described piston 4 is provided with piston packing 9 and guide ring 10, and the internal surface of the end cap that is connected with piston rod 5 is equipped with dust-proof seal ring 11 and guide sleeve 12.
When the inlet qi of chong channel ascending adversely of small-sized cylinder 13, as shown in Figure 3, the two-piston of small-sized cylinder 13 is to two side shiftings, and two extension edges 15 open gradually, and eccentric hoop 14 is rotated down, until pushing against piston rod 5 with its braking; When to the inlet exhaust of small-sized cylinder 13, as shown in Figure 4, the two-piston of small-sized cylinder moves to the centre, and two extension edges 15 close up gradually, drive eccentric hoop and move to Fig. 3 position along the diagram direction of arrow, under the effect of spring 17, eccentric hoop 14 remains on Fig. 3 position, at this moment, produce the gap between eccentric hoop 14 and the piston rod 5, braking is removed, and piston rod 5 freedom can move back and forth.
During work, according to the needs of work to the stroke of cylinder, pre-set sensing station is when cylinder second control mouthful 19 logical pressurized air and during first control mouthful 18 exhausts, cylinder piston 4 is to left movement, when cylinder piston moved to this position, the signal that the magnetite on the piston sends can be by sensor senses, the action of sensor control two position three way directional control valve, selector valve is controlled a small-sized cylinder, the brake piston bar is come with eccentric hoop in small-sized cylinder control eccentric hoop position, and piston rod moves no longer forward; Switch valve with two-position and five-pass commutation this moment, turnover gas direction changes, and cylinder first is controlled mouthful 18 logical pressurized air and second control mouthful 19 exhausts, and two-position three way electromagnetic switch valve events is braked and is removed, and piston is toward swivel motion.And so forth, realization is to the control of cylinder stroke.The present invention can preset piston stroke easily by regulating sensing station, realizes the control to stroke.
The present invention has done simple transformation to need not with the cylinder of oil, adds simple sensors and break structure, and low cost has realized piston highi degree of accuracy arbitrary distance of run is regulated.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (6)
1. controlled stroke cylinder, comprise front cover, rear end cover, cylinder barrel, piston, the cylinder barrel two ends are tightly connected with front cover, rear end cover respectively, described front cover is provided with first ventilating hole, described rear end cover is provided with second ventilating hole, piston is located in the cylinder barrel slidably, piston rod one end is connected with piston, stretches out in the perforate of one of the other end the past, rear end cover, and piston rod and described perforate are tightly connected; It is characterized in that: described first ventilating hole is connected a selector valve with second ventilating hole, and described piston is by this selector valve control commutation; Described piston is provided with sense cell, the sensor that cooperates with described sense cell is located at the periphery of cylinder barrel slippingly, piston rod stretches out on the end cap of a side cylinder break is housed, the output line of described sensor connects the air intake control valve of the moving device of cylinder, and described cylinder break and piston rod form the braking matching relationship.
2. controlled stroke cylinder as claimed in claim 1, it is characterized in that: described cylinder break comprises small-sized cylinder and the eccentric hoop of being controlled by small-sized cylinder, described piston rod stretches out from the center hole of eccentric hoop, described eccentric hoop is located in the groove suitable in the corresponding end cap rotationally, described eccentric hoop by about two lobe braking plates symmetries form, the upper-end surface of two braking plates has extended upward extension edge, clamping has described small-sized cylinder between two extension edges, be provided with two pistons in the cavity of small-sized cylinder dorsad, the piston rod of two-piston stretches out casing wall fixedlys connected with the extension edge of respective side, is connected with spring between the lower end surface of two braking plates.
3. controlled stroke cylinder as claimed in claim 1 or 2 is characterized in that: described first selector valve is a switch valve with two-position and five-pass, and described second selector valve is the two-position three way solenoid directional control valve.
4. controlled stroke cylinder as claimed in claim 3 is characterized in that: described sense cell is a magnetite.
5. controlled stroke cylinder as claimed in claim 4 is characterized in that: be connected with screw rod between described front cover and the rear end cover, slide block is located on the described screw rod slidably, on the described slide block sensor is housed.
6. controlled stroke cylinder as claimed in claim 5 is characterized in that: described piston is provided with piston packing and guide ring, and the internal surface of the end cap that is connected with piston rod is equipped with seal ring and guide sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101567298A CN101178085A (en) | 2007-11-28 | 2007-11-28 | Controlled stroke cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101567298A CN101178085A (en) | 2007-11-28 | 2007-11-28 | Controlled stroke cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101178085A true CN101178085A (en) | 2008-05-14 |
Family
ID=39404454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101567298A Pending CN101178085A (en) | 2007-11-28 | 2007-11-28 | Controlled stroke cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101178085A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727096A (en) * | 2014-01-14 | 2014-04-16 | 中冶南方工程技术有限公司 | High-precision brake for variable-stroke cylinder |
| CN104564630A (en) * | 2013-10-14 | 2015-04-29 | 广州天沅橡胶制品有限公司 | Digital intelligent color paste pump |
| CN105121867A (en) * | 2013-02-13 | 2015-12-02 | 梅西埃-道蒂公司 | Modular actuator with snubbing arrangement |
| CN105626621A (en) * | 2016-03-28 | 2016-06-01 | 安徽五洋机床制造有限公司 | Hydraulic bending machine oil cylinder with stroke adjusting function |
| CN108518385A (en) * | 2018-07-12 | 2018-09-11 | 长兴宏力机械科技有限公司 | A kind of hydraulic cylinder with overflow effect |
-
2007
- 2007-11-28 CN CNA2007101567298A patent/CN101178085A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105121867A (en) * | 2013-02-13 | 2015-12-02 | 梅西埃-道蒂公司 | Modular actuator with snubbing arrangement |
| CN105121867B (en) * | 2013-02-13 | 2018-02-27 | 赛峰起落架***加拿大公司 | Modular event driven device with buffer unit |
| CN104564630A (en) * | 2013-10-14 | 2015-04-29 | 广州天沅橡胶制品有限公司 | Digital intelligent color paste pump |
| CN104564630B (en) * | 2013-10-14 | 2016-08-10 | 广州天沅橡胶制品有限公司 | Digital intelligent color paste pump |
| CN103727096A (en) * | 2014-01-14 | 2014-04-16 | 中冶南方工程技术有限公司 | High-precision brake for variable-stroke cylinder |
| CN103727096B (en) * | 2014-01-14 | 2016-03-02 | 中冶南方工程技术有限公司 | For the High-precision brake of variable-stroke cylinder |
| CN105626621A (en) * | 2016-03-28 | 2016-06-01 | 安徽五洋机床制造有限公司 | Hydraulic bending machine oil cylinder with stroke adjusting function |
| CN108518385A (en) * | 2018-07-12 | 2018-09-11 | 长兴宏力机械科技有限公司 | A kind of hydraulic cylinder with overflow effect |
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080514 |