CN101825125A - Oil cylinder with adjustable piston stroke - Google Patents
Oil cylinder with adjustable piston stroke Download PDFInfo
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- CN101825125A CN101825125A CN200910025471A CN200910025471A CN101825125A CN 101825125 A CN101825125 A CN 101825125A CN 200910025471 A CN200910025471 A CN 200910025471A CN 200910025471 A CN200910025471 A CN 200910025471A CN 101825125 A CN101825125 A CN 101825125A
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Abstract
The invention discloses an oil cylinder with adjustable piston stroke, which comprises a cylinder body, the front and the rear ends of the cylinder body are respectively provided with a front end cover and a rear end cover; the cylinder body is internally provided with a piston and a piston rod; the rear end cover is provided with a rear limiting seat which is internally provided with a limiting cavity which passes through a mounting hole on the rear end cover and is communicated with a rear cavity; the limiting cavity and the mounting hole are internally and movably provided with rear limiting rods, the front ends of which are matched with the bottom of the piston, and the rear ends thereof are positioned inside the limiting cavity; the rear limiting seat is provided with a screwed hole communicated with the limiting cavity; and the screwed hole is internally provided with an adjusting screw rod matched with the screwed hole, and the adjusting screw rod is provided with a locking nut matched with the adjusting screw rod. The oil cylinder has the advantages that the oil cylinder with the adjustable piston stroke can be used for conveniently adjusting the stroke of the piston and the piston rod as well as the length of the piston rod, thus leading the oil cylinder to be more conveniently and flexibly used and have wider application scope.
Description
Technical field
The present invention relates to a kind of oil cylinder, relate in particular to a kind of oil cylinder of adjustable piston stroke.
Background technique
Existing cylinder structure comprises: cylinder body, on the rear and front end of cylinder body, be respectively arranged with front cover and rear end cover, on front cover and rear end cover, be respectively arranged with spill port and oil inlet hole, in cylinder body, be provided with cavity, be provided with piston in the cavity, piston is divided into ante-chamber and back cavity two-part with cavity, and spill port and oil inlet hole are connected with ante-chamber and back cavity respectively, piston is fixedlyed connected with the rear end of piston rod, and the front end of piston rod passes front cover and stretches out cylinder body.In use, oil cylinder is fixedly installed on the process equipment, the front end of piston rod is connected with workpiece, by oil inlet hole oil-feed in back cavity, the spill port oil return promotes piston and piston rod and travels forward, by spill port oil-feed in ante-chamber, the oil inlet hole oil return promotes piston and piston rod and moves backward.In this process, the motion of piston all is a full stroke, and the stroke of piston and piston rod is all unadjustable.In actual course of working, because workpiece size often changes, processing request also often changes, and oil cylinder is fixedly installed on the process equipment, and it is very inconvenient to satisfy above-mentioned size and process variations, is difficult to satisfy the requirement of actual processing.
Summary of the invention
Technical problem to be solved by this invention is: a kind of oil cylinder that can the regulating piston stroke is provided.In order to solve the problems of the technologies described above, technological scheme of the present invention is: the oil cylinder of adjustable piston stroke, comprise: cylinder body, on the rear and front end of cylinder body, be respectively arranged with front cover and rear end cover, on front cover and rear end cover, be respectively arranged with spill port and oil inlet hole, in cylinder body, be provided with cavity, be provided with piston in the cavity, piston is divided into ante-chamber and back cavity two-part with cavity, spill port and oil inlet hole are connected with ante-chamber and back cavity respectively, piston is fixedlyed connected with the rear end of piston rod, rear end cover is provided with the back position limit socket, in the position limit socket of back, be provided with limit chamber, limit chamber is connected with back cavity by the mounting hole on the rear end cover, in limit chamber and mounting hole, be movably set with the back position-limited lever, the front end of back position-limited lever and the bottom of piston cooperatively interact, the rear end of back position-limited lever is arranged in the limit chamber, on the position limit socket of back, the tapped hole that is interconnected with limit chamber is set, be provided with the adjusting screw rod that cooperatively interacts with it in tapped hole, adjusting screw rod is provided with the locking nut that cooperatively interacts with it.
In order to solve above-mentioned further technical problem better, further technological scheme of the present invention is: the front end of piston rod passes front cover and stretches out cylinder body, the front end of piston rod is by being connected with connecting rod to silk, concrete Placement is: the front end of piston rod is provided with first tapped hole, rear end to silk is arranged in first tapped hole, rear end to silk is provided with the back locking nut that cooperatively interacts with it, the rear end of connecting rod is provided with second tapped hole, the interior hand of spiral of hand of spiral in second tapped hole and first tapped hole is opposite, front end to silk is arranged in second tapped hole, and the front end of silk is provided with the preceding locking nut that cooperatively interacts with it.
In order to solve the problems of the technologies described above better, further technological scheme of the present invention is: also be provided with vibration damping sheet on the rear end of described back position-limited lever.
Advantage of the present invention is: the oil cylinder of the adjustable piston stroke of this structure is the stroke of regulating piston and piston rod easily, length that simultaneously can also the regulating piston bar, and it is more convenient and flexible that oil cylinder is used, and using scope is wider.
Description of drawings
Fig. 1 is the structural representation of the oil cylinder of adjustable piston stroke of the present invention.
Fig. 2 is the view of the piston rod of oil cylinder of the adjustable piston stroke among Fig. 1 when elongated.
View when Fig. 3 is half trip for the piston of the oil cylinder of the adjustable piston stroke among Fig. 1 and piston rod.
Among the figure: 1, cylinder body, 11, front cover, 111, spill port, 12, rear end cover, 121, oil inlet hole, 122, mounting hole, 13, piston, 14, piston rod, 141, first tapped hole, 15, ante-chamber, 16, back cavity, 2, to silk, 21, back locking nut, 22, preceding locking nut, 3, connecting rod, 31, second tapped hole, 4, back position limit socket, 41, limit chamber, 42, the back position-limited lever, 421, vibration damping sheet, 43, tapped hole, 5, adjusting screw rod, 51, locking nut.
Embodiment
Describe particular content of the present invention in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the oil cylinder of adjustable piston stroke, comprise: cylinder body 1, on the rear and front end of cylinder body 1, be respectively arranged with front cover 11 and rear end cover 12, on front cover 11 and rear end cover 12, be respectively arranged with spill port 111 and oil inlet hole 121, in cylinder body 1, be provided with cavity, be provided with piston 13 in the cavity, piston 13 is divided into ante-chamber 15 and back cavity 16 two-part with cavity, spill port 111 and oil inlet hole 121 are connected with ante-chamber 15 and back cavity 16 respectively, piston 13 is fixedlyed connected with the rear end of piston rod 14, the front end of piston rod 14 passes front cover 11 and stretches out cylinder body 1, rear end cover 12 is provided with back position limit socket 4, in the position limit socket 4 of back, be provided with limit chamber 41, limit chamber 41 is connected with back cavity 16 by the mounting hole on the rear end cover 12 122, in limit chamber 41 and mounting hole 122, be movably set with back position-limited lever 42, the bottom of the front end of back position-limited lever 42 and piston 13 cooperatively interacts, the rear end of back position-limited lever 42 is arranged in the limit chamber 41, on the position limit socket 4 of back, the tapped hole 43 that is interconnected with limit chamber 41 is set, in tapped hole 43, be provided with the adjusting screw rod 5 that cooperatively interacts with it, also be provided with vibration damping sheet 421 on the rear end of back position-limited lever 42, adjusting screw rod 5 is provided with the locking nut 51 that cooperatively interacts with it.In order to make things convenient for the length of regulating piston bar 14, the front end of piston rod 14 is by being connected with connecting rod 3 to silk 2, concrete Placement is: the front end of piston rod 14 is provided with first tapped hole 141, rear end to silk 2 is arranged in first tapped hole 141, rear end to silk 2 is provided with the back locking nut 21 that cooperatively interacts with it, the rear end of connecting rod 3 is provided with second tapped hole 31, the interior hand of spiral of hand of spiral in second tapped hole 31 and first tapped hole 141 is opposite, front end to silk 2 is arranged in second tapped hole 31, and the front end of silk 2 is provided with the preceding locking nut 22 that cooperatively interacts with it.
In actual course of working, the size and the processing request of workpiece change, when needing to change the stroke of piston 13, as shown in Figure 3, be that stroke with piston 13 becomes half trip, unclamp locking nut 51 with instruments such as hand or spanners, rotate adjusting screw rod 5 with instruments such as hand or spanners to a certain direction then, make the front end of adjusting screw rod 5 promote vibration damping sheet 421, back position-limited lever 42 is motion forward in limit chamber 41, the bottoms that the front end of back position-limited lever 42 is extend in the back cavity 16 with piston 13 offset, piston 13 can only be moved at the front half part of cavity 15, thereby the stroke of piston 13 is become half trip, at last locking nut 51 lockings are got final product.
In actual course of working, the size and the processing request of workpiece change, in the time of need becoming the stroke of piston 13 again full stroke, unclamp locking nut 51 with instruments such as hand or spanners, then with instrument counterrotating adjusting screw rods 5 such as hand or spanners, adjusting screw rod 5 back-outed get back to the origin-location, locking nut 51 is tightened, can become the stroke of piston 13 again full stroke like this, during work, by spill port 111 oil-feed in ante-chamber 15, oil inlet hole 121 oil returns, promote piston 13 motion backward in cavity 15, the rear end of limit chamber 41 got back to by piston 13 promotion back position-limited levers 42 and the front end of adjusting screw rod 5 offsets.
As shown in Figure 2, the oil cylinder of this adjustable piston stroke, by oil inlet hole 121 oil-feed in back cavity 16, spill port 111 oil returns, promote piston 13 motion forward in cylinder body 1, piston 13 promotes piston rod 14 and stretches out, and the front end of piston rod 14 is by being connected with connecting rod 3 to silk 2, and connecting rod 3 is connected with the workpiece that needs processing.In actual course of working, the size and the processing request of workpiece change, when need be with the front end length of piston rod 14 elongated, unclamp preceding locking nut 22 and back swivel nut 21 respectively with instruments such as hand or spanners, rotate silk 2 to a certain direction with instruments such as hand or spanners then, stretch out from first tapped hole 141 rear end to silk 2, front end to silk 2 stretches out from second tapped hole 31 simultaneously, thereby the front end length of piston rod 14 is elongated, preceding locking nut 22 and back locking nut 21 are tightened got final product at last.
In actual course of working, the size and the processing request of workpiece change, in the time of the front end length of piston rod 14 need being shortened again, the elongated adjustment process of adjustment process and the front end of piston rod 14 is similar substantially, unclamp preceding locking nut 22 and back locking nut 21 respectively with instruments such as hand or spanners, rotate silk 2 to other direction with instruments such as hand or spanners then, rear end to silk 2 enters into first tapped hole 141, rear end to silk 2 enters in second tapped hole 31 simultaneously, thereby the front end length of piston rod 14 is shortened, at last preceding locking nut 22 and 21 lockings of back locking nut are got final product.
Claims (3)
1. the oil cylinder of adjustable piston stroke, comprise: cylinder body (1), on the rear and front end of cylinder body (1), be respectively arranged with front cover (11) and rear end cover (12), on front cover (11) and rear end cover (12), be respectively arranged with spill port (111) and oil inlet hole (121), in cylinder body (1), be provided with cavity, be provided with piston (13) in the cavity, piston (13) is divided into ante-chamber (15) and back cavity (16) two-part with cavity, spill port (111) and oil inlet hole (121) are connected with ante-chamber (15) and back cavity (16) respectively, piston (13) is fixedlyed connected with the rear end of piston rod (14), the front end of piston rod (14) passes front cover (11) and stretches out cylinder body (1), it is characterized in that: described rear end cover (12) is provided with back position limit socket (4), in back position limit socket (4), be provided with limit chamber (41), limit chamber (41) is connected with back cavity (16) by the mounting hole (122) on the rear end cover (12), in limit chamber (41) and mounting hole (122), be movably set with back position-limited lever (42), the bottom of the front end of back position-limited lever (42) and piston (13) cooperatively interacts, the rear end of back position-limited lever (42) is arranged in the limit chamber (41), at back position limit socket (4) tapped hole (43) that is interconnected with limit chamber (41) is set upward, be provided with the adjusting screw rod (5) that cooperatively interacts with it in tapped hole (43), adjusting screw rod (5) is provided with the locking nut (51) that cooperatively interacts with it.
2. according to the oil cylinder of the described adjustable piston stroke of claim 1, it is characterized in that: the front end of described piston rod (14) is by being connected with connecting rod (3) to silk (2), concrete Placement is: the front end of piston rod (14) is provided with first tapped hole (141), rear end to silk (2) is arranged in first tapped hole (141), rear end to silk (2) is provided with the back locking nut (21) that cooperatively interacts with it, the rear end of connecting rod (3) is provided with second tapped hole (31), front end to silk (2) is arranged in second tapped hole (31), the interior hand of spiral of hand of spiral in second tapped hole (31) and first tapped hole (141) is opposite, and the front end of silk (2) is provided with the preceding locking nut (22) that cooperatively interacts with it.
3. according to the oil cylinder of claim 1 or 2 described adjustable piston strokes, it is characterized in that: on the rear end of described back position-limited lever (42), also be provided with vibration damping sheet (421).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025471A CN101825125A (en) | 2009-03-06 | 2009-03-06 | Oil cylinder with adjustable piston stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025471A CN101825125A (en) | 2009-03-06 | 2009-03-06 | Oil cylinder with adjustable piston stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101825125A true CN101825125A (en) | 2010-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910025471A Pending CN101825125A (en) | 2009-03-06 | 2009-03-06 | Oil cylinder with adjustable piston stroke |
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| Country | Link |
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| CN (1) | CN101825125A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530009A (en) * | 2012-01-20 | 2012-07-04 | 北京二七轨道交通装备有限责任公司 | Bogie frame support device and bogie |
| CN104389847A (en) * | 2014-10-31 | 2015-03-04 | 沈阳东北电力调节技术有限公司 | Rotary oil cylinder capable of preventing travel regulation rod from falling |
| CN104454692A (en) * | 2014-11-27 | 2015-03-25 | 贵州精立航太科技有限公司 | Hydraulic system for thread roller |
| CN105127901A (en) * | 2015-08-31 | 2015-12-09 | 桂林桂北机器有限责任公司 | Automatic compensation device for grinding wheel of caliper grinding machine |
| CN107755553A (en) * | 2016-08-22 | 2018-03-06 | 南昌海立电器有限公司 | A kind of pipe expander |
| CN108386414A (en) * | 2018-05-16 | 2018-08-10 | 无锡市威特机械有限公司 | A kind of long stroke oil cylinder tail end adjusting bracket |
| CN109505822A (en) * | 2019-01-17 | 2019-03-22 | 大连诺美液压件有限公司 | A kind of hydraulic cylinder with stroke adjustment |
| CN110873087A (en) * | 2018-08-29 | 2020-03-10 | 宁波市鑫潮自动化元件有限公司 | Cylinder with adjustable piston rod control position |
| CN114430951A (en) * | 2022-01-25 | 2022-05-06 | 浙拖奔野（宁波）拖拉机制造有限公司 | Tractor lifter with limiting function |
-
2009
- 2009-03-06 CN CN200910025471A patent/CN101825125A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530009A (en) * | 2012-01-20 | 2012-07-04 | 北京二七轨道交通装备有限责任公司 | Bogie frame support device and bogie |
| CN104389847A (en) * | 2014-10-31 | 2015-03-04 | 沈阳东北电力调节技术有限公司 | Rotary oil cylinder capable of preventing travel regulation rod from falling |
| CN104454692A (en) * | 2014-11-27 | 2015-03-25 | 贵州精立航太科技有限公司 | Hydraulic system for thread roller |
| CN105127901A (en) * | 2015-08-31 | 2015-12-09 | 桂林桂北机器有限责任公司 | Automatic compensation device for grinding wheel of caliper grinding machine |
| CN107755553A (en) * | 2016-08-22 | 2018-03-06 | 南昌海立电器有限公司 | A kind of pipe expander |
| CN108386414A (en) * | 2018-05-16 | 2018-08-10 | 无锡市威特机械有限公司 | A kind of long stroke oil cylinder tail end adjusting bracket |
| CN110873087A (en) * | 2018-08-29 | 2020-03-10 | 宁波市鑫潮自动化元件有限公司 | Cylinder with adjustable piston rod control position |
| CN109505822A (en) * | 2019-01-17 | 2019-03-22 | 大连诺美液压件有限公司 | A kind of hydraulic cylinder with stroke adjustment |
| CN114430951A (en) * | 2022-01-25 | 2022-05-06 | 浙拖奔野（宁波）拖拉机制造有限公司 | Tractor lifter with limiting function |
| CN114430951B (en) * | 2022-01-25 | 2023-12-08 | 浙拖奔野（宁波）拖拉机制造有限公司 | Tractor lifter with limiting function |
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Application publication date: 20100908 |