CN203685753U - Adjustable-stroke oil cylinder - Google Patents
Adjustable-stroke oil cylinder Download PDFInfo
- Publication number
- CN203685753U CN203685753U CN201320868770.9U CN201320868770U CN203685753U CN 203685753 U CN203685753 U CN 203685753U CN 201320868770 U CN201320868770 U CN 201320868770U CN 203685753 U CN203685753 U CN 203685753U
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- China
- Prior art keywords
- oil cylinder
- push rod
- regulating
- stroke
- piston
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- Expired - Lifetime
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses an adjustable-stroke oil cylinder and relates to a design technology for the oil cylinder of a casting machine. The adjustable-stroke oil cylinder comprises an oil cylinder body, wherein a front cover and a rear cover are respectively arranged at the front end and the rear end of the oil cylinder body, a piston is arranged in the oil cylinder body, the piston is connected with a piston rod, the front end of the piston rod penetrates through the front cover and extends out of the cylinder body, a regulating ejector rod is further arranged in the oil cylinder body, threads are arranged on the outer periphery of the regulating ejector rod, and the regulating ejector rod is connected with the rear cover through the threads and axially extends out of the rear cover; a seal oil ring is arranged at a part, which is at a preset distance D from the end part of the regulating ejector rod, of the regulating ejector rod in the oil cylinder body. The transmission distance of the oil cylinder is variable through the regulating action of the regulating ejector rod in the oil cylinder body, the structure is simple, and the cost is low.
Description
Technical field
The utility model relates to the oil cylinder of casting machine, particularly a kind of stroke capable of regulating oil cylinder.
Background technique
Hydraulic jack by hydraulic energy change mechanical energy into, the do straight reciprocating motion hydraulic actuator of (or oscillating motion).While realizing to-and-fro motion with it, can remove speed reducer from, and there is no drive gap, motion steadily, is therefore used widely in the hydraulic system of various machineries.Oil hydraulic cylinder is divided into piston type, plunger type, swing type and telescopic by structure type, wherein with piston-type hydraulic cylinder application at most.Piston-type hydraulic cylinder is made up of cylinder block, oil cylinder piston, piston rod, forward and backward cylinder cap etc. conventionally, and the distance of transmission is the stroke of piston rod movement.But, in actual use, sometimes need oil cylinder transmission distance variable.
Model utility content
(1) technical problem that will solve
The technical problems to be solved in the utility model is that stroke how to realize oil cylinder is adjustable.
(2) technological scheme
In order to address the above problem, the utility model provides a kind of stroke capable of regulating oil cylinder, described stroke capable of regulating oil cylinder comprises: cylinder block, the front-end and back-end of described cylinder block are respectively equipped with protecgulum and bonnet, in described cylinder block, be provided with piston, described piston is connected with piston rod, the front end of piston rod stretches out cylinder block through protecgulum, in described cylinder block, be also provided with adjusting push rod, described adjusting push rod periphery is provided with screw thread, and described adjusting push rod is connected with described bonnet by screw thread and extends vertically bonnet; On adjusting push rod in described cylinder block, apart from regulating predeterminable range D place, push rod end to be provided with sealing scraper ring.
Wherein, described bonnet outer end is provided with locking nut, and described adjusting push rod is through described locking nut.
Wherein, be covered with screw thread after described oil cylinder, described bonnet is connected with described cylinder block by described screw thread.
Wherein, in cylinder block, regulating the end of push rod is L to the distance of protecgulum end, and the length of piston is L1, regulates push rod in the time of leftmost position, and the stroke of oil cylinder is L-L1; Regulate push rod in the time of farthest right position, the stroke of oil cylinder is L-L1-D; The stroke adjustable extent of oil cylinder is: (L-L1-D)≤oil cylinder shape journey≤(L-L1).
(3) beneficial effect
The utility model, by being located at the regulating action of the adjusting push rod in described cylinder block, makes oil cylinder transmission distance variable, and simple in structure, cost is low.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, the utility model provides a kind of stroke capable of regulating oil cylinder, described stroke capable of regulating oil cylinder comprises: cylinder block 1, in described cylinder block, 1 is provided with piston 2, described piston 2 is connected with piston rod 3, the front-end and back-end of described cylinder block 1 are respectively equipped with protecgulum 4 and bonnet 5, the front end of piston rod 3 stretches out cylinder block 1 through protecgulum 4, in described cylinder block 1, be also provided with and regulate push rod 7, described adjusting push rod 7 peripheries are provided with screw thread, and described adjusting push rod 7 is connected with described bonnet 5 by screw thread and extends vertically bonnet 5; On adjusting push rod 7 in described cylinder block 1, apart from regulating push rod 7 predeterminable range D places, end to be provided with sealing scraper ring 8.
Preferably, described bonnet 5 outer ends are provided with locking nut 6, and described adjusting push rod 7 is through described locking nut 6.
Preferably, the bonnet 5 of described oil cylinder is provided with screw thread, described bonnet 5 is connected with described cylinder block by described screw thread, regulating push rod 7 and bonnet 5 to adopt is threaded, by rotation screw thread, can realize the fine setting of oil cylinder stroke, by locking nut 6, the screw thread that regulates push rod 7 and bonnet 5 screw threads and tight, realize self-locking, realize the accurate location of stroke.
Wherein, in cylinder block, regulating the end of push rod 7 is L to the distance of protecgulum 4 ends, and the length of piston 2 is L1, regulates push rod 7 in the time of leftmost position, and the stroke of oil cylinder is L-L1; Regulate push rod in the time of farthest right position, the stroke of oil cylinder is L-L1-D; The stroke adjustable extent of oil cylinder is: (L-L1-D)≤oil cylinder shape journey≤(L-L1), as required, the stroke of oil cylinder can arrange arbitrarily within the scope of this, locked by locking nut after setting.
Above mode of execution is only for illustrating the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technological schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (4)
1. a stroke capable of regulating oil cylinder, it is characterized in that, described stroke capable of regulating oil cylinder comprises: cylinder block, the front-end and back-end of described cylinder block are respectively equipped with protecgulum and bonnet, in described cylinder block, are provided with piston, and described piston is connected with piston rod, described piston rod stretches out cylinder block through protecgulum, in described cylinder block, be also provided with adjusting push rod, described adjusting push rod periphery is provided with screw thread, and described adjusting push rod is connected with described bonnet by screw thread and extends vertically bonnet; On adjusting push rod in described cylinder block, apart from regulating predeterminable range D place, push rod end to be provided with sealing scraper ring.
2. stroke capable of regulating oil cylinder as claimed in claim 1, is characterized in that, described bonnet outer end is provided with locking nut, and described adjusting push rod is through described locking nut.
3. stroke capable of regulating oil cylinder as claimed in claim 1 or 2, is characterized in that, is covered with screw thread after described oil cylinder, and described bonnet is connected with described cylinder block by described screw thread.
4. stroke capable of regulating oil cylinder as claimed in claim 1, is characterized in that, in cylinder block, regulating the end of push rod is L to the distance of protecgulum end, and the length of piston is L1, regulates push rod in the time of leftmost position, and the stroke of oil cylinder is L-L1; Regulate push rod in the time of farthest right position, the stroke of oil cylinder is L-L1-D; The stroke adjustable extent of oil cylinder is: (L-L1-D)≤oil cylinder shape journey≤(L-L1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868770.9U CN203685753U (en) | 2013-12-26 | 2013-12-26 | Adjustable-stroke oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868770.9U CN203685753U (en) | 2013-12-26 | 2013-12-26 | Adjustable-stroke oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685753U true CN203685753U (en) | 2014-07-02 |
Family
ID=51007661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320868770.9U Expired - Lifetime CN203685753U (en) | 2013-12-26 | 2013-12-26 | Adjustable-stroke oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727089A (en) * | 2013-12-26 | 2014-04-16 | 苏州三基铸造装备股份有限公司 | Stroke-adjustable oil cylinder |
-
2013
- 2013-12-26 CN CN201320868770.9U patent/CN203685753U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727089A (en) * | 2013-12-26 | 2014-04-16 | 苏州三基铸造装备股份有限公司 | Stroke-adjustable oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |