CN205780021U - A kind of Double-plunger compound hydraulic cylinder device - Google Patents
A kind of Double-plunger compound hydraulic cylinder device Download PDFInfo
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- CN205780021U CN205780021U CN201620730300.XU CN201620730300U CN205780021U CN 205780021 U CN205780021 U CN 205780021U CN 201620730300 U CN201620730300 U CN 201620730300U CN 205780021 U CN205780021 U CN 205780021U
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Abstract
A kind of Double-plunger compound hydraulic cylinder device, all uses piston structure, vat, little cylinder mutually utilize and realize drawback movement including vat, little cylinder, bow beam, connecting rod and active chuck, vat and little cylinder；Vat cylinder body is fixed, and big cylinder plug is arranged in vat cylinder interior, and little cylinder cylinder body is arranged on vat cylinder body afterbody, and big cylinder plug is local hollow shape, and little cylinder cylinder body is assemblied in this hollow position, and little cylinder plug is arranged in little cylinder cylinder interior；Little cylinder plug acts in active chuck frame；Big cylinder plug is connected with bow beam by nut, and bow beam connects active chuck frame by being arranged in the connecting rod of both sides.In structure designs, vat plunger design is become hollow structure, and little cylinder cylinder body is arranged in vat plunger body.Meanwhile, linkage etc., vat, little cylinder is make use of mutually to utilize and achieve drawback movement in structure designs.
Description
Technical field
This utility model relates to hydraulic cylinder technical field, is specifically related to a kind of Double-plunger compound hydraulic cylinder device.
Background technology
Stretching unit is mainly made up of parts such as fixed chuck, pressure beam, main stretching cylinder, active chucks.As stretching unit
Powered actuation mechanism, main stretching cylinder is mainly used in promoting active chuck to advance, retreating, and active chuck advances and is mainly used in stretching work
Condition, now needs low speed big load power；And retreat for backhaul operating mode at active chuck, generally require high speed side crops industry and move
Power, and speed, magnitude of load be not in an order of magnitude, if using common piston cylinder structure, by hydraulic system
Design brings extreme difficulties.
By traditional design method, a stretching unit generally uses the structure of two main stretching cylinders to ensure active chuck
Stress balance, the both sides promotion activity jointly being distributed in active chuck is advanced, is retreated, and so also tends to also bring one to synchronize partially
Difference problem, this just brings certain difficulty to hydraulic pressure, design of electrical system, and floor space is big.
Utility model content
The purpose of this utility model is for deficiency of the prior art, it is provided that the Double-plunger being adapted to stretching-machine is combined
Hydraulic cylinder device.
For achieving the above object, the utility model discloses following technical scheme:
A kind of Double-plunger compound hydraulic cylinder device, including vat, little cylinder, bow beam, connecting rod and active chuck, vat and
Little cylinder all uses piston structure, vat, little cylinder mutually utilize and realize drawback movement；
Vat cylinder body is fixed, and big cylinder plug is arranged in vat cylinder interior, and little cylinder cylinder body is arranged on vat cylinder body afterbody, greatly
Cylinder plug is local hollow shape, and little cylinder cylinder body is assemblied in this hollow position, and little cylinder plug is arranged in little cylinder cylinder interior；Little cylinder
Plunger acts in active chuck frame；Big cylinder plug is connected with bow beam by nut, and bow beam is by being arranged in both sides
Connecting rod connects active chuck frame.
Further, described connecting rod is connected by bearing pin with active chuck frame.
Further, totally two, described connecting rod, it is respectively arranged on the bow beam left and right sides.
Disclosed in this utility model, a kind of Double-plunger compound hydraulic cylinder device, has the advantages that
It is provided simultaneously with the big load of low speed, high speed side crops industry and broken belt pooling feature；Integrated design simultaneously, have employed single cylinder and draws
Stretching method instead of traditional twin-tub drawing process, efficiently solves two-tank method offset issue.
Accompanying drawing explanation
Fig. 1 is compound hydraulic cylinder device sectional view；
Fig. 2 is compound hydraulic cylinder device top view.
Wherein: 1, bow beam；2, big cylinder plug；3, vat cylinder body；4, little cylinder cylinder body；5, little cylinder plug；6, connecting rod；7, pin
Axle；8, active chuck.
Detailed description of the invention
Below in conjunction with embodiment and referring to the drawings this utility model is further described.
Refer to Fig. 1-Fig. 2.
A kind of Double-plunger compound hydraulic cylinder device, including vat, little cylinder, bow beam 1, connecting rod 6 and active chuck 8, greatly
Cylinder and little cylinder all use piston structure, vat, little cylinder mutually utilize and realize drawback movement；
Vat cylinder body 4 is fixed, and it is internal that big cylinder plug 2 is arranged in vat cylinder body 1, and little cylinder cylinder body 4 is arranged on vat cylinder body 3 tail
Portion, big cylinder plug 2 is local hollow shape, and little cylinder cylinder body 4 is assemblied in this hollow position, and little cylinder plug 5 is arranged in little cylinder cylinder body 4
Internal；Little cylinder plug 5 acts in active chuck 8 frame；Big cylinder plug 2 is connected with bow beam 1 by nut, and bow beam 1 leads to
Cross and be arranged in the connecting rod 6 of both sides and connect active chuck 8 frame.
Vat drives active chuck 8 to move back and forth by bow beam 1, solves the synchronization of the double master cylinder arrangement of tradition stretching-machine
Offset issue.Mutually utilized by large and small cylinders such as pull rod device and realize stretching, drawback movement, meeting during stretching low simultaneously
High speed side crops industry special operation condition demand when the big load of speed and backhaul.When material stretching is ruptured suddenly, little cylinder is used for bearing fixing
The ballistic movement of chuck.
As specific embodiment, described connecting rod 6 is connected by bearing pin with active chuck 8 frame.
As specific embodiment, totally two, described connecting rod 6, it is respectively arranged on bow beam 1 left and right sides.
This utility model patent mainly proposes a kind of Double-plunger compound hydraulic cylinder device being adapted to stretching-machine, this hydraulic pressure
Two plunger-type cylinders are integrated by cylinder cleverly, and vat is used for stretching operating mode, it is achieved the big loading movement of low speed；And it is little
Cylinder, for the backhaul operating mode of active chuck, is used for realizing the motion of high speed side crops industry.In structure designs, cleverly by big cylinder plug
It is designed to hollow structure, and little cylinder cylinder body is arranged in vat plunger body.
Meanwhile, linkage, vat, little cylinder is make use of mutually to utilize and achieve drawback movement in structure designs.Drawing
When stretching, big cylinder plug 2 promotes bow beam 1 to move in orbit, and bow beam 1 presss from both sides by being arranged in the connecting rod 6 drive activity of both sides
8 motions, reversely push back little cylinder now by active chuck 8 by little cylinder plug 5, and little cylinder is in draining state；Otherwise, in activity
During chuck 8 drawback movement, little cylinder oil-feed, its plunger promotes active chuck 8 to retreat, accordingly, make use of connecting rod 6 to drive bow beam
1 rollback, is thus simultaneously achieved the plunger drawback movement of vat.
When active chuck 8 needs drawback movement, high pressure liquid force feed enters in little cylinder by flange and promotes little cylinder plug 5
Motion, little cylinder plug 5 acts directly in active chuck 8 frame, pushes directly on active chuck 8 drawback movement.Now, movable folder
8 drive big cylinder plug 2 and bow beam 1 drawback movement by connecting rod 6, and now vat is in pressure release state.Due to little cylinder plug 5
Diameter is much smaller than big cylinder plug 2, and the hydraulic flow meeting master cylinder stretching can meet the motion of active chuck 8 high speed side crops industry simultaneously
Demand.At the medium and small cylinder of drawing process as buffering hydraulic cylinder, the buffer protection demand ruptured suddenly when can meet material stretching.
When material stretches, high pressure liquid force feed is entered in vat by flange, promotes big cylinder plug 2 to transport to draw direction
Dynamic, big cylinder plug 2 is connected by big nut with bow beam 1, and bow beam 1 drives active chuck 8 by being arranged in the connecting rod 6 of both sides
Motion, connecting rod 6 is connected by bearing pin with active chuck 8.Now, active chuck 8 drives little cylinder plug 5 backhaul to transport by connecting rod 6
Dynamic, the least cylinder is in pressure release state.This function is used for stretching operating mode, meets the big load requirements of low speed.
The above is only preferred implementation of the present utility model, is not intended to limit；Although it should be pointed out that, with reference to upper
Stating each embodiment to be described in detail this utility model, it will be understood by those within the art that, it is the most permissible
Technical scheme described in the various embodiments described above is modified, or the most some or all of technical characteristic is carried out equivalent replaces
Change；And these amendments and replacement, do not make the essence of corresponding technical scheme depart from this utility model each embodiment technical scheme
Scope.
Claims (1)
1. a Double-plunger compound hydraulic cylinder device, it is characterised in that include vat, little cylinder, bow beam, connecting rod and movable folder
Head, vat and little cylinder all use piston structure, vat, little cylinder mutually utilize and realize drawback movement；
Vat cylinder body is fixed, and big cylinder plug is arranged in vat cylinder interior, and little cylinder cylinder body is arranged on vat cylinder body afterbody, vat post
Plug is local hollow shape, and little cylinder cylinder body is assemblied in this hollow position, and little cylinder plug is arranged in little cylinder cylinder interior；Little cylinder plug
Act in active chuck frame；Big cylinder plug is connected with bow beam by nut, and bow beam is by being arranged in the connecting rod of both sides
Connect active chuck frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620730300.XU CN205780021U (en) | 2016-07-12 | 2016-07-12 | A kind of Double-plunger compound hydraulic cylinder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620730300.XU CN205780021U (en) | 2016-07-12 | 2016-07-12 | A kind of Double-plunger compound hydraulic cylinder device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780021U true CN205780021U (en) | 2016-12-07 |
Family
ID=58121569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620730300.XU Active CN205780021U (en) | 2016-07-12 | 2016-07-12 | A kind of Double-plunger compound hydraulic cylinder device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205780021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927611A (en) * | 2016-07-12 | 2016-09-07 | 中国重型机械研究院股份公司 | Double-plunger type compound hydraulic cylinder device |
| CN113251026A (en) * | 2021-06-03 | 2021-08-13 | 一重集团大连工程技术有限公司 | Combined piston rod for stretcher and piston cylinder with same |
-
2016
- 2016-07-12 CN CN201620730300.XU patent/CN205780021U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927611A (en) * | 2016-07-12 | 2016-09-07 | 中国重型机械研究院股份公司 | Double-plunger type compound hydraulic cylinder device |
| CN113251026A (en) * | 2021-06-03 | 2021-08-13 | 一重集团大连工程技术有限公司 | Combined piston rod for stretcher and piston cylinder with same |
| CN113251026B (en) * | 2021-06-03 | 2024-02-06 | 一重集团大连工程技术有限公司 | Combined piston rod for stretcher and piston cylinder with piston rod |
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| GR01 | Patent grant |