CN206458664U - A kind of multilevel difunctional hydraulic cylinder - Google Patents
A kind of multilevel difunctional hydraulic cylinder Download PDFInfo
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- CN206458664U CN206458664U CN201720152562.7U CN201720152562U CN206458664U CN 206458664 U CN206458664 U CN 206458664U CN 201720152562 U CN201720152562 U CN 201720152562U CN 206458664 U CN206458664 U CN 206458664U
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Abstract
The utility model discloses a kind of multilevel difunctional hydraulic cylinder, including outer cylinder, the piston rod being sheathed in outer cylinder and the more than one middle cylinder barrel being sheathed on successively between outer cylinder and piston rod, the front end of the outer cylinder and the middle cylinder barrel is respectively connected with cylinder sleeve, the middle cylinder barrel overcoat is provided with bushing, and leave gap between the bushing and corresponding middle cylinder barrel, the front end of the middle cylinder barrel offers middle cylinder barrel oil-through hole, the rear end of the bushing offers bushing oil-through hole, the surfaces externally and internally of the rear end of other cylinder sleeves in addition to most inner side cylinder sleeve leaves gap between the middle cylinder barrel or outer cylinder in interior outside and offers cylinder sleeve oil-through hole respectively, the front end of the outer cylinder corresponds at the position of cylinder sleeve oil-through hole and offers the first fuel feed hole.The utility model is also acted in return by hydraulic oil, equally with double-acting function, and no longer needs outside long oil pipe, easy for installation, simple in construction, adds safety coefficient.
Description
Technical field
The utility model is related to hydraulic cylinder field, relates in particular to a kind of multilevel difunctional hydraulic cylinder.
Background technology
Hydraulic cylinder, is that hydraulic energy is changed into mechanical energy, the hydraulic pressure execution of straight reciprocating motion (or oscillating motion) is done
Element.Its simple in construction, reliable operation.Realized with it during reciprocating motion, deceleration device can be removed from, and without between transmission
Gap, stable movement, therefore be used widely in various mechanical hydraulic systems.
Current era, because multilevel difunctional hydraulic cylinder has the advantages that small volume stroke is long, makes it in hydraulic system
Application it is more and more extensive, but one of oilhole is generally opened in piston rod bar by traditional multilevel difunctional hydraulic cylinder
Head, so results in the external oil pipe length substantial increase for connecting this hydraulic cylinder, and can be moved with the action of hydraulic cylinder
Dynamic, so, the hydraulic system will become neither succinct attractive in appearance and dangerous not be durable.
Utility model content
Technical problem to be solved in the utility model is to provide one kind need not outside long oil pipe, multistage easy for installation
Double acting hydraulic cylinder.
In order to solve the above-mentioned technical problem, the utility model is adopted the following technical scheme that：A kind of multilevel difunctional hydraulic cylinder,
It is sheathed on including outer cylinder, the piston rod being sheathed in outer cylinder and successively more than one between outer cylinder and piston rod
The front end of middle cylinder barrel, the outer cylinder and the middle cylinder barrel is respectively connected with cylinder sleeve, and the middle cylinder barrel overcoat is provided with bushing,
And gap is left between the bushing and corresponding middle cylinder barrel, the front end of the middle cylinder barrel offers middle cylinder barrel oil-through hole,
The rear end of the bushing offers bushing oil-through hole, the surfaces externally and internally difference of the rear end of other cylinder sleeves in addition to most inner side cylinder sleeve
Gap is left between the middle cylinder barrel or outer cylinder in interior outside and cylinder sleeve oil-through hole is offered, the front end of the outer cylinder is corresponding
The first fuel feed hole is offered at the position of cylinder sleeve oil-through hole.
Further, the rear end of the outer cylinder offers the second oil-feed of the rodless cavity for entering outer cylinder for hydraulic oil
Hole.
Further, the rear end of the middle cylinder barrel is connected with piston, and the bushing is clamped in cylinder barrel two in the middle of corresponding
Hold between the piston and cylinder sleeve of connection.
Further, the rear end of the middle cylinder barrel is connected with piston, and the rear end of the outer cylinder and the piston connects
It is connected on cylinder bottom, the cylinder bottom of the rear end connection of the piston and opens up provided with cylinder bottom fuel feed hole.
Further, the quantity of the middle cylinder barrel is one.
The beneficial effects of the utility model are embodied in：
At work, when piston rod return, hydraulic oil enters rod chamber to this hydraulic cylinder by the first fuel feed hole, then passes through lining
Cover the gap between oil-through hole, bushing and middle cylinder barrel, middle cylinder barrel oil-through hole to enter in the rod chamber of middle cylinder barrel, so as to push away
Cylinder barrel and piston rod reset successively in the middle of dynamic, and start in piston rod return, and hydraulic oil can enter without cylinder sleeve oil-through hole
Enter rod chamber, when piston rod runs to right limit position, hydraulic oil enters bushing oil-through hole by cylinder sleeve oil-through hole, from
And active force is uninterrupted in return, that is to say, that this hydraulic cylinder is also acted in return by hydraulic oil, and is no longer needed
Outside long oil pipe, it is easy for installation, it is to avoid oil pipe is moved with the action of hydraulic cylinder, simple in construction, adds safety coefficient.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the utility model one.
In accompanying drawing the mark of each part for：1 outer cylinder, 11 first fuel feed holes, 12 second fuel feed holes, 2 piston rods, in the middle of 3
Cylinder barrel, 31 middle cylinder barrel oil-through holes, 4 bushings, 41 bushing oil-through holes, 51 cylinder sleeves, 511 cylinder sleeve oil-through holes, 52 cylinder bottoms, 521 cylinder bottoms
Fuel feed hole, 53 pistons.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings：It should be noted that in the case where not conflicting, this
The feature in embodiment and embodiment in application can be mutually combined.Come below with reference to the accompanying drawings and in conjunction with the embodiments specifically
The bright present invention.
Referring to Fig. 1.
The multilevel difunctional hydraulic cylinder of the embodiment of the utility model one, including outer cylinder 1, the work that is sheathed in outer cylinder 1
What is illustrated in stopper rod 2 and the more than one middle cylinder barrel 3 being sheathed on successively between outer cylinder 1 and piston rod 2, figure is to only have
The situation of cylinder barrel in the middle of one, this design structure is the simplest, disclosure satisfy that most of behaviours in service, certain the utility model
It is not limited thereto, can be required according to specifically used, the quantity of cylinder barrel in the middle of increase；
The front end of the outer cylinder 1 and the middle cylinder barrel 3 is respectively connected with outside cylinder sleeve 51, the middle cylinder barrel 3 and is arranged with
Gap is left between bushing 4, and the bushing 4 and corresponding middle cylinder barrel 3, the front end of the middle cylinder barrel 3 offers middle cylinder
Cylinder oil-through hole 31, the rear end of the bushing 4 offers bushing oil-through hole 41, other cylinder sleeves 51 in addition to most inner side cylinder sleeve 51
The surfaces externally and internally of rear end leaves gap between the middle cylinder barrel 3 or outer cylinder 1 in interior outside respectively, and except most inner side cylinder sleeve 51
The rear end of other cylinder sleeves 51 in addition offers cylinder sleeve oil-through hole 511, and the front end of the outer cylinder 1 is corresponded to before outer cylinder 1
The first fuel feed hole 11 is offered at the position for holding the cylinder sleeve oil-through hole 511 on the cylinder sleeve 51 of connection.
At work, when piston rod return, hydraulic oil enters rod chamber to this hydraulic cylinder by the first fuel feed hole 11, then passes through
Gap, middle cylinder barrel oil-through hole 31 between bushing oil-through hole 41, bushing 4 and middle cylinder barrel 3 enter the rod chamber of middle cylinder barrel 3
It is interior, so as to promote middle cylinder barrel 3 and piston rod 2 to reset successively, and start in piston rod return, hydraulic oil can be without cylinder
Set oil-through hole 511 enters rod chamber, and when piston rod runs to right limit position, hydraulic oil passes through cylinder sleeve oil-through hole 511
Into bushing oil-through hole 41, so that active force is uninterrupted in return, that is to say, that this hydraulic cylinder is in return also by hydraulic pressure
The effect of oil, and no longer needs outside long oil pipe, easy for installation, it is to avoid oil pipe is moved with the action of hydraulic cylinder, i.e. letter
It is clean and attractive in appearance, it also add safety coefficient.
In one embodiment, the rear end of the middle cylinder barrel 3 is connected with piston 53, during the bushing 4 is clamped in accordingly
Between the two ends of cylinder barrel 3 connect piston 53 and cylinder sleeve 51 between, the fixation of bushing 4 is realized with this and left between middle cylinder barrel 3
Gap, in specific implementation, cylinder sleeve 51 is threaded in the front inner surface of corresponding cylinder barrel, easy to disassemble, and the front end of cylinder sleeve 51 is stretched
Go out middle cylinder barrel 3 and set flange to be used for clamp sleeve 4.
In one embodiment, the rear end of the middle cylinder barrel 3 is connected with piston 53, the outer cylinder 1 and the piston 53
Rear end be respectively connected with cylinder bottom 52 so that middle cylinder barrel 3 is assembled with the cylinder sleeve 51 being connected thereon, cylinder bottom 52, piston 53 and bushing 4
It is integrally formed, is opened up on the cylinder bottom 52 of the rear end connection of the piston 53 provided with cylinder bottom fuel feed hole 521, for promoting piston rod.
Piston 53 and cylinder bottom 52 can be fixed by way of welding.
In one embodiment, the rear end of the outer cylinder 1 offers the of the rodless cavity for entering outer cylinder 1 for hydraulic oil
Two fuel feed holes 12.This hydraulic cylinder operationally, when piston rod 2 stretches out, by the second fuel feed hole 12 into rodless cavity pressed by hydraulic oil
Cylinder barrel 3 and piston rod 2 are moved in the middle of promoting in proper order.
Have in the utility model at each component contact position equipped with seal, except weldment.
It should be understood that example as described herein and embodiment are not limited to the utility model only for explanation, this
Art personnel can make various modifications or change according to it, all within spirit of the present utility model and principle, be made
Any modification, equivalent substitution and improvements etc., should be included within protection domain of the present utility model.
Claims (5)
1. a kind of multilevel difunctional hydraulic cylinder, including outer cylinder (1), the piston rod (2) that is sheathed in outer cylinder (1) and successively
It is sheathed on the more than one middle cylinder barrel (3) between outer cylinder (1) and piston rod (2), the outer cylinder (1) and the centre
The front end of cylinder barrel (3) is respectively connected with cylinder sleeve (51), it is characterised in that：Bushing (4), and institute are arranged with outside the middle cylinder barrel (3)
Gap is left between cylinder barrel (3) in the middle of stating bushing (4) and being corresponding, the front end of the middle cylinder barrel (3) offers middle cylinder barrel mistake
Oilhole (31), the rear end of the bushing (4) offers bushing oil-through hole (41), other cylinder sleeves in addition to most inner side cylinder sleeve (51)
(51) surfaces externally and internally of rear end leaves gap between the middle cylinder barrel (3) or outer cylinder (1) in interior outside respectively and offered
Cylinder sleeve oil-through hole (511), the front end of the outer cylinder (1) is entered corresponding to offering first at the position of cylinder sleeve oil-through hole (511)
Oilhole (11).
2. multilevel difunctional hydraulic cylinder as claimed in claim 1, it is characterised in that：The rear end of the outer cylinder (1) is offered
Enter the second fuel feed hole (12) of the rodless cavity of outer cylinder (1) for hydraulic oil.
3. multilevel difunctional hydraulic cylinder as claimed in claim 1 or 2, it is characterised in that：The rear end of the middle cylinder barrel (3) connects
Be connected to piston (53), the bushing (4) be clamped in cylinder barrel (3) two ends connection in the middle of corresponding piston (53) and cylinder sleeve (51) it
Between.
4. multilevel difunctional hydraulic cylinder as claimed in claim 1 or 2, it is characterised in that：The rear end of the middle cylinder barrel (3) connects
It is connected to piston (53), the rear end of the outer cylinder (1) and the piston (53) is respectively connected with cylinder bottom (52), the piston (53)
Cylinder bottom fuel feed hole (521) is offered on the cylinder bottom (52) of rear end connection.
5. multilevel difunctional hydraulic cylinder as claimed in claim 1 or 2, it is characterised in that：The quantity of the middle cylinder barrel (3) is
One.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152562.7U CN206458664U (en) | 2017-02-20 | 2017-02-20 | A kind of multilevel difunctional hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152562.7U CN206458664U (en) | 2017-02-20 | 2017-02-20 | A kind of multilevel difunctional hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458664U true CN206458664U (en) | 2017-09-01 |
Family
ID=59690392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720152562.7U Active CN206458664U (en) | 2017-02-20 | 2017-02-20 | A kind of multilevel difunctional hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458664U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730261A (en) * | 2018-06-08 | 2018-11-02 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and structure for improving oil cylinder support hinge |
| CN109281604A (en) * | 2018-11-16 | 2019-01-29 | 启东环宇智能设备制造有限公司 | A kind of hydraulic crushing strike machine core and hydraulic breaking hammer |
-
2017
- 2017-02-20 CN CN201720152562.7U patent/CN206458664U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730261A (en) * | 2018-06-08 | 2018-11-02 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and structure for improving oil cylinder support hinge |
| CN109281604A (en) * | 2018-11-16 | 2019-01-29 | 启东环宇智能设备制造有限公司 | A kind of hydraulic crushing strike machine core and hydraulic breaking hammer |
| CN109281604B (en) * | 2018-11-16 | 2024-05-24 | 启东环宇智能设备制造有限公司 | Striking machine core for hydraulic crushing and hydraulic crushing hammer |
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