CN207297505U - A kind of controllable two-stage double acting hydraulic cylinder of sequence of movement - Google Patents
A kind of controllable two-stage double acting hydraulic cylinder of sequence of movement Download PDFInfo
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- CN207297505U CN207297505U CN201721129922.8U CN201721129922U CN207297505U CN 207297505 U CN207297505 U CN 207297505U CN 201721129922 U CN201721129922 U CN 201721129922U CN 207297505 U CN207297505 U CN 207297505U
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Abstract
The utility model discloses a kind of controllable two-stage double acting hydraulic cylinder of sequence of movement, it includes 5 cavitys of two-stage protecgulum, two-stage piston, two-stage piston rod, two-stage cylinder barrel, two-stage oil pipe and formation, it is characterised in that cylinder assembly（6）It is equipped with into oil outlet A, B, C, D, E, first stage piston bar（1）It is equipped with into oil outlet F, first stage piston（14）Equipped with into oil outlet G, first cavity into oil outlet be into oil outlet B, the second cavity into oil outlet be into oil outlet A, E, G, the 3rd cavity into oil outlet be into oil outlet A, D, 4th cavity and the 5th cavity to gang up chamber, its into oil outlet be into oil outlet C, F.Rear cover（6‑3）Equipped with 1 sealing ring, two level protecgulum（2）, level-one protecgulum（3）It is equipped with 3 sealing rings, first stage piston（14）It is equipped with 6 sealing rings, second piston（11）Equipped with 3 sealing rings.The utility model, which is realized, promotes load weight two-stage, and sequence of movement is reliable, and not random level, connecting line are not servo-actuated, and saves equipment manufacturing costs, securely and reliably.
Description
Technical field：
It the utility model is related to a kind of controllable two-stage double acting hydraulic cylinder of sequence of movement, more particularly to a kind of only three
Hydraulic fluid port belongs to hydraulic cylinder technical field by the controllable two-stage double acting hydraulic cylinder of HYDRAULIC CONTROL SYSTEM realization order.
Background technology：
At present, need first to promote heavy load under some conditions to designated position, then promote small loading to specific bit again
Put, when retraction, small load was first contracted, and was followed by heavy load retraction.Completing this action request generally has two kinds of designing schemes, scheme one：
With two hydraulic cylinders, one big hydraulic cylinder pushes away heavy load, connects a small cylinder in heavy load, second is realized by small cylinder
Level is released.Scheme two：With conventional two-stage double acting hydraulic cylinder.Both the above scheme has some shortcomings and drawback, scheme one
With the stretching of heavy load, small cylinder is servo-actuated, this hydralic hose for just needing to connect also is servo-actuated together, not only causes scene to regard
Feel the cumbersome service life for also reducing sebific duct, sebific duct explosion over time causes unpredictable loss, in addition can increase equipment
Manufacture cost.The conventional two-stage double acting hydraulic cylinder sequence of movement of scheme two can be realized in theory, but loaded and rubbed
Random level phenomenon easily occurs for the influence for wiping the extraneous factors such as power, and the phenomenon that sebific duct is servo-actuated occurs, in addition two-stage is born
The promotion poor controllability of load.
Utility model content：
The purpose of this utility model is that it is to overcome the shortcomings of above-mentioned prior art and a kind of realize is provided and promotes load
Weight two-stage, not random level, sebific duct do not have to be servo-actuated, and save the controllable two-stage double-action hydraulic of the sequence of movement of equipment manufacturing costs
Cylinder.
The purpose of this utility model can be reached by following measure：A kind of controllable two-stage double acting liquid of sequence of movement
Cylinder pressure, it includes the cylinder assembly being formed by connecting by port connection, cylinder barrel, rear cover, cylinder barrel connection level-one flange protecgulum, its feature
It is first stage piston, the first stage piston bar that first order hydraulic cylinder is equipped with cylinder assembly, first stage piston and first stage piston bar screw thread
Connection, is equipped with the 3rd sealing ring between first stage piston and first stage piston bar, first stage piston is equipped with the 4th sealing ring, the 5th sealing
Circle, first stage piston bar are threadedly coupled two level flange protecgulum, and second piston, the two level of second level hydraulic cylinder are equipped with first stage piston bar
Piston rod and spacer, are threadedly coupled between second piston and second piston rod, and second piston is equipped with the 8th sealing ring, and two level is lived
Plug is internally provided with two level oil pipe, and two level oil pipe is threadedly coupled with first stage piston, and the 9th is equipped between two level oil pipe and first stage piston
Sealing ring；The tenth sealing ring, the 11st sealing ring are equipped between two level oil pipe and second piston, primary oil is equipped with two level oil pipe
Pipe, is equipped with the 13rd sealing ring, the 14th sealing ring, between first stage piston and cylinder assembly between level-one oil pipe and first stage piston
Form the first cavity；The second cavity is formed between first stage piston and second piston；Cylinder assembly, level-one flange protecgulum, level-one are lived
The 3rd cavity is formed between stopper rod, first stage piston；Between two level flange protecgulum, first stage piston bar, second piston rod, second piston
The 4th cavity is formed, second piston rod is internally formed the 5th cavity, and the 4th cavity and the 5th cavity are to gang up chamber, cylinder assembly
Port connection is equipped with into oil outlet A, into oil outlet D, into oil outlet E, in cylinder assembly after cover equipped with into oil outlet B,
Into oil outlet C, second piston rod is equipped with into oil outlet F, and first stage piston is equipped with into oil outlet G, the first cavity into fuel-displaced
Kong Weijin oil outlets B, the second cavity into oil outlet be into oil outlet A, into oil outlet E, into oil outlet G, the 3rd cavity into
Oil outlet be into oil outlet A, into oil outlet D, the 4th cavity and the 5th cavity into oil outlet for into oil outlet F, into oil outlet
C。
It is described to connect into oil outlet A, into oil outlet B, into oil outlet C in order to further realize the purpose of this utility model
Welding system control device, the system control device include the first electromagnetism/liquid reversal valve, the first stacking type hydraulic control check valve,
First stacked unidirectional throttle valve, the second electromagnetism/liquid reversal valve, the second stacking type hydraulic control check valve, the second superposing type unidirectionally save
Flow valve, pressure measuring tie-in, check valve, overflow valve, the first electromagnetism/liquid reversal valve, the first stacking type hydraulic control check valve, the first superposing type
One-way throttle valve stacks up, the second electromagnetism/liquid reversal valve, the second stacking type hydraulic control check valve, the second superposing type one-way throttle
Valve stacks up, and the A mouths of the first stacked unidirectional throttle valve are connected with hydraulic cylinder into oil outlet B, and the first superposing type unidirectionally saves
B mouths of stream valve is connected with hydraulic cylinder into oil outlet A, the B mouths of the second stacked unidirectional throttle valve and pressure measuring tie-in, check valve,
Overflow valve, hydraulic cylinder are connected into oil outlet C, the B mouths and the second stacked unidirectional throttle valve of the first stacked unidirectional throttle valve
A mouths be connected by three-way connection with hydraulic cylinder into oil outlet A.
In order to further realize the purpose of this utility model, the rear cover connection monaural rear cover of the cylinder assembly, monaural
The first plain radial bearing and the first circlip for hole, second piston rod connection monaural extension bar, monaural extension bar are equipped with rear cover
Inside it is equipped with the second plain radial bearing and the second circlip for hole.
In order to further realize the purpose of this utility model, the rear cover back-end of the cylinder assembly is equipped with screw plug and combination
Pad.
In order to further realize the purpose of this utility model, the is equipped between the cylinder assembly and level-one flange protecgulum
One sealing ring, level-one protecgulum is interior to be equipped with the second sealing ring, and the 6th sealing ring is equipped between first stage piston bar and two level flange protecgulum,
The 7th sealing ring is equipped with two level flange protecgulum, the 12nd sealing ring is equipped with rear cover.
In order to further realize the purpose of this utility model, led in the level-one protecgulum equipped with the first dustband, first
Xiang Huan, first axle are sealed with this spy, and the second dustband, the second guide ring, the second axis are equipped with two level flange protecgulum and is sealed with this spy, and two
Level piston is equipped with support ring, is equipped with the 3rd guide ring between two level oil pipe and second piston, level-one oil pipe and first stage piston it
Between be equipped with the 4th guide ring.
The utility model can produce following good effect compared with the prior art：The utility model is a kind of brand-new by application
Design concept, realize that the controllable, hydralic hose of specific action order does not have to servo-actuated two-stage double acting hydraulic cylinder.The utility model
Sequence of movement is more reliable compared with the working status of conventional Double Acting Telescopic Hydraulic Cylinder, will not produce showing for sequence of movement confusion
As.The utility model be suitable for promote two-stage load, to hydraulic cylinder priority requirement arrive greatly it is small stretch out successively, from small to large according to
The specific occasion of secondary retraction.The utility model two-stage hydraulic cylinder only with the oil inlet and outlet of three connection exterior lines, passes through hydraulic pressure
System controls, and hydraulic cylinder is descending to be stretched out successively, the sequence of movement retracted successively from small to large, realizes and promotes load weight two
Levelization, not random level, sebific duct do not have to servo-actuated, saving equipment manufacturing costs.
Brief description of the drawings：
Fig. 1 is the outside drawing of the utility model；
Fig. 2 is the sectional structure chart of the utility model；
Fig. 3 is the partial enlarged view of the piston region of the utility model；
Fig. 4 is partial schematic diagram when the utility model one-stage hydraulic cylinder is fully extended；
Fig. 5 is the schematic diagram of the system control device of the utility model；
Embodiment：Specific embodiment of the present utility model below in conjunction with the accompanying drawings elaborates：
Embodiment：A kind of controllable two-stage double acting hydraulic cylinder of sequence of movement（Referring to Fig. 1-Fig. 5）, it includes cylinder assembly
6, cylinder assembly 6 is welded by port connection 6-1, cylinder barrel 6-2, rear cover 6-3, and the rear cover 6-3 rear ends of cylinder assembly 6 are equipped with
Screw plug 17 and combination mat 16, the rear cover 6-3 of cylinder assembly 6 connect monaural rear cover 36 by hexagon socket cap head screw, after monaural
The first plain radial bearing 38 and the first circlip for hole 37 are equipped with lid 36, the cylinder barrel 6-2 of cylinder assembly 6 is threadedly coupled one
Level flange protecgulum 3, is equipped with the first sealing ring 26, first is equipped with level-one protecgulum 3 between cylinder assembly 6 and level-one flange protecgulum 3
Dustband 22, the second sealing ring 23, the first guide ring 24, axis seal 25 with this spy.Equipped with first order hydraulic cylinder in cylinder assembly 6
First stage piston 14, first stage piston bar 5, first stage piston 14 are threadedly coupled with first stage piston bar 5, first stage piston 14 and first stage piston bar
The 3rd sealing ring 9 is equipped between 5.First stage piston 14 is equipped with two sealing rings i.e. the 4th sealing ring 31-1, the 5th sealing ring 31-
2, first stage piston bar 5 is threadedly coupled two level flange protecgulum 2, and the 6th sealing is equipped between first stage piston bar 5 and two level flange protecgulum 2
Circle 21, two level flange protecgulum 2 is interior to be equipped with the second dustband 18, the second guide ring 19, the 7th sealing ring 20, two level flange protecgulum 2
The protecgulum of second level hydraulic cylinder is served not only as, and flange can be connected with heavy load.Second level liquid is equipped with first stage piston bar 5
Second piston 11, second piston rod 1 and the spacer 4 of cylinder pressure, are threadedly coupled and add between second piston 11 and second piston rod 1
7 locking thread of holding screw；Second piston rod 1 connects monaural extension bar 53, and the second plain radial bearing is equipped with monaural extension bar 53
55 and second circlip for hole 54, monaural extension bar 53 be used to connect small load.Second piston 11 is equipped with the 8th sealing ring 30
With support ring 27, second piston 11 is internally provided with two level oil pipe 12, and two level oil pipe 12 is threadedly coupled with first stage piston 14, two level oil
The 9th sealing ring 32 is equipped between pipe 12 and first stage piston 14；The tenth sealing ring is equipped between two level oil pipe 12 and second piston 11
28-1, the 11st sealing ring 28-2 and the 3rd guide ring 29.Level-one oil pipe 13, level-one oil pipe 13 and lock are equipped with two level oil pipe 12
Tight nut 35 is threadedly coupled, and the 12nd sealing ring 34, level-one oil pipe 13 and level-one are equipped with the rear cover 6-3 in cylinder assembly 6
The 13rd sealing ring 33-1, the 14th sealing ring 33-2 and the 4th guide ring 15 are equipped between piston 14.
The first cavity 49 is formed between first stage piston 14 and cylinder assembly 6；Shape between first stage piston 14 and second piston 11
Into the second cavity 50；The 3rd cavity is formed between cylinder assembly 6, level-one flange protecgulum 3, first stage piston bar 5, first stage piston 14
51；The 4th cavity 52 is formed between two level flange protecgulum 2, first stage piston bar 5, second piston rod 1, second piston 11, two level is lived
Stopper rod 1 is internally formed the 5th cavity 63.The port connection 6-1 of cylinder assembly 6 be equipped with into oil outlet A56, into oil outlet D59,
Into oil outlet E60, in cylinder assembly 6 after cover equipped with being equipped with into oil outlet B57, into oil outlet C58, second piston rod 1
Into oil outlet F61, first stage piston 14 is equipped with into oil outlet G62, the first cavity 49 into oil outlet be into oil outlet B57 the
Two cavitys 50 into oil outlet be into oil outlet A56, into oil outlet E60, into oil outlet G62, the 3rd cavity 51 into oil outlet
For into oil outlet A56, into oil outlet D59, the 4th cavity 52 into oil outlet be into oil outlet F61, the disengaging of the 5th cavity 63
Oilhole is into oil outlet C58.Into oil outlet A56, into oil outlet B57, into oil outlet C58 connection system control devices, it is described
System control device includes the first electromagnetism/liquid reversal valve 40, the first stacking type hydraulic control check valve 41, the first superposing type one-way throttle
Valve 42, the second electromagnetism/liquid reversal valve 43, the second stacking type hydraulic control check valve 44, the second stacked unidirectional throttle valve 45, pressure measurement connect
First 46, check valve 47, overflow valve 48, the first electromagnetism/liquid reversal valve 40, the first stacking type hydraulic control check valve 41, the first superposing type
One-way throttle valve 42 stacks up, the second electromagnetism/liquid reversal valve 43, the second stacking type hydraulic control check valve 44, the second superposing type list
Stack up to throttle valve 45, the A mouths of the first stacked unidirectional throttle valve 42 are connected with hydraulic cylinder into oil outlet B57, first
The B mouths of stacked unidirectional throttle valve 42 are connected with hydraulic cylinder into oil outlet A56, the B mouths of the second stacked unidirectional throttle valve 45
It is connected with pressure measuring tie-in 46, check valve 47, overflow valve 48, hydraulic cylinder into oil outlet C58, first stacked unidirectional throttle valve 42
B mouths and the A mouths of the second stacked unidirectional throttle valve 45 be connected by three-way connection with hydraulic cylinder into oil outlet A56.
It is the Electrical heads sequence of movement table of the utility model below：
1. the process of stretching：
1.1 one-stage hydraulic cylinders are stretched out：Hydraulic system fuel feeding, the Electrical heads YV2 of the first electromagnetism/liquid reversal valve 40 obtain electric, valve
Core is in parallel position, enters high pressure oil into oil outlet B57, in the 5th sealing ring 31-2, the 14th sealing ring 33-2 and the 12nd
Under the action of sealing ring 34,14 stress of first stage piston is stretched out along level-one oil pipe 13, while 51 liquid of the 3rd cavity of one-stage hydraulic cylinder
Pressure oil into oil outlet A56 by discharging.In the above process, level-one oil pipe 13 constantly leaves the 5th cavity 63 of two-stage hydraulic cylinder,
63 space of the 5th cavity is caused constantly to increase, the 4th cavity 52, the 5th cavity 63 form negative pressure, and negative pressure can be by check valve 47
Open oil suction supplement.First stage piston 14 is moved to contacted with level-one protecgulum 3 after, Electrical heads YV2 dead electricity, the commutation of the first electromagnetism/liquid
Valve 40 returns to middle position, and one-stage hydraulic cylinder extending action is completed.
1.2 two-stage hydraulic cylinders stretch out：The YV4 Electrical heads of second electromagnetism/liquid reversal valve 43 obtain electric, and spool is in parallel position,
Enter high pressure oil into oil outlet A56, since the first electromagnetism/liquid reversal valve 40 must not be electric, 49 hydraulic pressure of the first cavity of one-stage hydraulic cylinder
Oil can not discharge under the action of the first stacking type hydraulic control check valve 41, ensure that first stage piston 14 does not bounce back.One-stage hydraulic cylinder
Three cavitys 51 are split into oil outlet D59 and into oil outlet E60 by the 4th sealing ring 31-1, and high pressure oil passes through into oil outlet
E60 is flowed into oil outlet G62, and under the action of the 11st sealing ring 28-2 and the 9th sealing ring 32, high pressure oil promotes two level to live
Plug 11 is stretched out along two level oil pipe 12, the 4th cavity 52 of two-stage hydraulic cylinder, 63 hydraulic oil of the 5th cavity from into oil outlet F61, into
Oil outlet C58 is discharged.After second piston 11 is contacted with spacer 4, Electrical heads YV4 dead electricity, extending action is fully completed.
2. retraction process：
2.1 two-stage hydraulic cylinders are retracted：The YV3 Electrical heads of second electromagnetism/liquid reversal valve 43 obtain it is electric, spool be in intersect position,
Enter high pressure oil into oil outlet C58, in the effect of the tenth sealing ring 28-1, the 13rd sealing ring 33-1 and the 8th sealing ring 30
Under, second piston 11 bounces back, at this time 50 hydraulic oil of the second cavity of two-stage hydraulic cylinder pass through into oil outlet G62 into oil outlet E60 most
Discharged afterwards from into oil outlet A56.After second piston 11 is contacted with first stage piston 14, Electrical heads YV3 dead electricity, two-stage hydraulic cylinder returns
Contracting is completed.In the process since the effect of the first stacking type hydraulic control check valve 41, first stage piston 14 are constantly in inactive state.
2.2 one-stage hydraulic cylinders are retracted：The YV1 Electrical heads of first electromagnetism/liquid reversal valve 40 obtain it is electric, spool be in intersect position,
Enter high pressure oil into oil outlet A56, although can enter into moment high pressure oil from into oil outlet E60 into oil outlet G62, i.e., second
Cavity 50, but under the action of the second stacking type hydraulic control check valve 44 with startup difference in areas, first stage piston 14 can retract, when
4th sealing ring 31-1 is crossed into after oil outlet E60, and high pressure oil can only enter the 3rd cavity 51 of one-stage hydraulic cylinder, first stage piston 14
It is constantly in retracted mode.In the process, level-one oil pipe 13 constantly enters the 5th cavity 63 of two-level oil cylinder, causes space to contract
Small, hydraulic oil is compressed, pressure rise, and after pressure, which reaches overflow valve 48, sets pressure, hydraulic oil overflow, ensures hydraulic cylinder
It is safe to use.After first stage piston 14 is contacted with the rear cover of cylinder assembly 6, Electrical heads YV1 dead electricity, so far a do action is complete
Into.The responsiveness of hydraulic cylinder can be adjusted by 42 second stacked unidirectional throttle valve 45 of the first stacked unidirectional throttle valve
Section, the pressure of each oil pocket of hydraulic cylinder can be measured by pressure measuring tie-in 46.
Embodiment above is only that the preferred embodiment of the utility model is described, other preferred embodiments
Do not tire out one by one herein and state, and not the scope of the utility model is defined, do not departing from the spirit of the design of the utility model
Under the premise of, various modifications and improvement that this area ordinary skill technical staff makes the technical solution of the utility model should all
Fall within the protection domain that claims of the utility model determine.
Claims (6)
1. a kind of controllable two-stage double acting hydraulic cylinder of sequence of movement, it is included by port connection（6-1）, cylinder barrel（6-2）, rear cover
（6-3）The cylinder assembly being formed by connecting（6）, cylinder barrel（6-2）Connect level-one flange protecgulum（3）, it is characterised in that cylinder assembly（6）
The interior first stage piston equipped with first order hydraulic cylinder（14）, first stage piston bar（5）, first stage piston（14）With first stage piston bar（5）Spiral shell
Line connects, first stage piston（14）With first stage piston bar（5）Between be equipped with the 3rd sealing ring（9）, first stage piston（14）It is equipped with the
Four sealing rings（31-1）, the 5th sealing ring（31-2）, first stage piston bar（5）It is threadedly coupled two level flange protecgulum（2）, first stage piston
Bar（5）The interior second piston equipped with second level hydraulic cylinder（11）, second piston rod（1）And spacer（4）, second piston（11）With two
Level piston rod（1）Between be threadedly coupled, second piston（11）It is equipped with the 8th sealing ring（30）, second piston（11）It is internally provided with
Two level oil pipe（12）, two level oil pipe（12）With first stage piston（14）It is threadedly coupled, two level oil pipe（12）With first stage piston（14）It
Between be equipped with the 9th sealing ring（32）；Two level oil pipe（12）With second piston（11）Between be equipped with the tenth sealing ring（28-1）, the tenth
One sealing ring（28-2）, two level oil pipe（12）It is interior to be equipped with level-one oil pipe（13）, level-one oil pipe（13）With first stage piston（14）Between
Equipped with the 13rd sealing ring（33-1）, the 14th sealing ring（33-2）, first stage piston（14）With cylinder assembly（6）Between form
One cavity（49）；First stage piston（14）With second piston（11）Between form the second cavity（50）；Cylinder assembly（6）, level-one method
Blue protecgulum（3）, first stage piston bar（5）, first stage piston（14）Between formed the 3rd cavity（51）；Two level flange protecgulum（2）, level-one
Piston rod（5）, second piston rod（1）, second piston（11）Between formed the 4th cavity（52）, second piston rod（1）Internal shape
Into the 5th cavity（63）, the 4th cavity（52）With the 5th cavity（63）It is to gang up chamber, cylinder assembly（6）Port connection（6-1）
It is equipped with into oil outlet A（56）, into oil outlet D（59）, into oil outlet E（60）, cylinder assembly（6）In after cover equipped with disengaging
Oilhole B（57）, into oil outlet C（58）, second piston rod（1）It is equipped with into oil outlet F（61）, first stage piston（14）Be equipped with into
Oil outlet G（62）, the first cavity（49）Into oil outlet be into oil outlet B（57）, the second cavity（50）Into oil outlet be into
Oil outlet A（56）, into oil outlet E（60）, into oil outlet G（62）, the 3rd cavity（51）Into oil outlet be into oil outlet A
（56）, into oil outlet D（59）, the 4th cavity（52）With the 5th cavity（63）Into oil outlet be into oil outlet F（61）, into fuel-displaced
Hole C（58）.
2. the controllable two-stage double acting hydraulic cylinder of a kind of sequence of movement according to claim 1, it is characterised in that described
Into oil outlet A（56）, into oil outlet B（57）, into oil outlet C（58）Connect system control device, the system control device
Including the first electromagnetism/liquid reversal valve（40）, the first stacking type hydraulic control check valve（41）, the first stacked unidirectional throttle valve（42）、
Second electromagnetism/liquid reversal valve（43）, the second stacking type hydraulic control check valve（44）, the second stacked unidirectional throttle valve（45）, pressure measurement
Connector（46）, check valve（47）, overflow valve（48）, the first electromagnetism/liquid reversal valve（40）, the first stacking type hydraulic control check valve
（41）, the first stacked unidirectional throttle valve（42）Stack up, the second electromagnetism/liquid reversal valve（43）, the second stacking type hydraulic control list
To valve（44）, the second stacked unidirectional throttle valve（45）Stack up, the first stacked unidirectional throttle valve（42）A mouths and hydraulic pressure
Cylinder into oil outlet B（57）It is connected, the first stacked unidirectional throttle valve（42）B mouths and hydraulic cylinder into oil outlet A（56）Phase
Even, the second stacked unidirectional throttle valve（45）B mouths and pressure measuring tie-in（46）, check valve（47）, overflow valve（48）, hydraulic cylinder
Into oil outlet C（58）It is connected, the first stacked unidirectional throttle valve（42）B mouths and the second stacked unidirectional throttle valve（45）A
Mouthful by three-way connection and hydraulic cylinder into oil outlet A（56）It is connected.
3. the controllable two-stage double acting hydraulic cylinder of a kind of sequence of movement according to claim 1, it is characterised in that described
Cylinder assembly（6）Rear cover（6-3）Connect monaural rear cover（36）, monaural rear cover（36）Inside it is equipped with the first plain radial bearing（38）
With the first circlip for hole（37）, second piston rod（1）Connect monaural extension bar（53）, monaural extension bar（53）Inside be equipped with second to
Heart oscillating bearing（55）With the second circlip for hole（54）.
4. the controllable two-stage double acting hydraulic cylinder of a kind of sequence of movement according to claim 1, it is characterised in that described
Cylinder assembly（6）Rear cover（6-3）Rear end is equipped with screw plug（17）And combination mat（16）.
5. the controllable two-stage double acting hydraulic cylinder of a kind of sequence of movement according to claim 1, it is characterised in that described
Cylinder assembly（6）With level-one flange protecgulum（3）Between be equipped with the first sealing ring（26）, level-one protecgulum（3）Inside it is equipped with the second sealing
Circle（23）, first stage piston bar（5）With two level flange protecgulum（2）Between be equipped with the 6th sealing ring（21）, two level flange protecgulum（2）It is interior
Equipped with the 7th sealing ring（20）, rear cover（6-3）Inside it is equipped with the 12nd sealing ring（34）.
6. the controllable two-stage double acting hydraulic cylinder of a kind of sequence of movement according to claim 1, it is characterised in that described
Level-one protecgulum（3）Inside it is equipped with the first dustband（22）, the first guide ring（24）, first axle with this spy seal（25）, before two level flange
Lid（2）Inside it is equipped with the second dustband（18）, the second guide ring（19）, the second axis with this spy seal, second piston（11）It is equipped with branch
Pushing out ring（27）, two level oil pipe（12）With second piston（11）Between be equipped with the 3rd guide ring（29）, level-one oil pipe（13）With level-one
Piston（14）Between be equipped with the 4th guide ring（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721129922.8U CN207297505U (en) | 2017-09-05 | 2017-09-05 | A kind of controllable two-stage double acting hydraulic cylinder of sequence of movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721129922.8U CN207297505U (en) | 2017-09-05 | 2017-09-05 | A kind of controllable two-stage double acting hydraulic cylinder of sequence of movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207297505U true CN207297505U (en) | 2018-05-01 |
Family
ID=62445863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721129922.8U Active CN207297505U (en) | 2017-09-05 | 2017-09-05 | A kind of controllable two-stage double acting hydraulic cylinder of sequence of movement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207297505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323400A (en) * | 2021-05-24 | 2021-08-31 | 合肥工业大学 | Concrete vibrating device and using method thereof |
-
2017
- 2017-09-05 CN CN201721129922.8U patent/CN207297505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323400A (en) * | 2021-05-24 | 2021-08-31 | 合肥工业大学 | Concrete vibrating device and using method thereof |
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