CN207568968U - A kind of stroke valve module and multistage hydraulic cylinder - Google Patents
A kind of stroke valve module and multistage hydraulic cylinder Download PDFInfo
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- CN207568968U CN207568968U CN201721641241.XU CN201721641241U CN207568968U CN 207568968 U CN207568968 U CN 207568968U CN 201721641241 U CN201721641241 U CN 201721641241U CN 207568968 U CN207568968 U CN 207568968U
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- stroke valve
- oil circuit
- mandril
- block piece
- interface channel
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Abstract
The utility model is related to a kind of stroke valve module and multistage hydraulic cylinders, including Cartridge inserted valve integrated block, stroke valve, first oil circuit, second oil circuit, seal block piece, mandril and interface channel, the stroke valve is arranged in Cartridge inserted valve integrated block, interface channel passes through the first oil circuit and the second oil circuit, first, second oil circuit is connected by interface channel, mandril is arranged in interface channel, sealing block piece is arranged between stroke valve and mandril, mandril promotion sealing block piece makes sealing block piece in an open position or blocking position, when sealing block piece is located at open position, first, second oil communication, when seal block piece be located at blocking position when first, second oil circuit is closed.A kind of stroke valve module of the utility model can control the run action sequence of the double-acting multilevel oil cylinder of rod end oil inlet, while extend Multi-stage cylinder seal durability；Furthermore, it is not necessary that the processing radial direction oil-through-hole on piston rods at different levels, effectively eliminates the hidden danger that sealing element vias at different levels are worn.
Description
Technical field
The utility model is related to hydraulic cylinder control technology field, more particularly to a kind of stroke valve module and multistage hydraulic cylinder.
Background technology
The Double Acting Telescopic Hydraulic Cylinder internal structure of conventional tailpiece of the piston rod oil inlet can guarantee that hydraulic cylinder is suitable in the loaded state
Sequence is stretched out, is withdrawn, and is as shown in Figure 1 conventional multistage hydraulic cylinder structure, and every grade of hydraulic cylinder has piston rod, and piston rod stretches out：Pressure
Power oil is entered by hydraulic cylinder rod end hydraulic fluid port, enters rodless cavities 10 at different levels through oil guide pipe 60, piston rod sequences at different levels are stretched out；Piston rod
It retracts：Pressure oil is entered by hydraulic cylinder rod end hydraulic fluid port, is entered through first stage piston bar inner cavity 50 and piston rod radial hole 30 at different levels each
Grade rod chamber 40.
Conventional multistage hydraulic cylinder is disadvantageous in that in piston rod retraction process, piston seal once by radial hole,
This grade of rod chamber is connected immediately with upper level rod chamber, this grade of piston rod does not bounce back also in place, and upper level piston rod starts back
Contracting, until when most upper level piston rod is bounced back in place, piston rods at different levels could together bounce back in place；Meanwhile because in piston rod
In reciprocal operational process, piston in combination sealing elements at different levels can easily cause sealing part abrasion by radial direction oil-through-hole, frequent operation
Failure occurs interior leakage, shortens hydraulic cylinder service life.
Utility model content
The utility model provides a kind of need not open up on the piston rod and radially leads to oil to solve problem of the prior art
Hole, solve the recycling of piston rods at different levels sequence, sealing element via wear problem at different levels a kind of stroke valve module and multistage hydraulic cylinder.
Specific technical solution is as follows：A kind of stroke valve module, including Cartridge inserted valve integrated block, stroke valve, the first oil circuit, the second oil
Road seals block piece, and mandril and interface channel, the stroke valve be arranged in Cartridge inserted valve integrated block, interface channel pass through the first oil circuit and
Second oil circuit, first, second oil circuit are connected by interface channel, and mandril is arranged in interface channel, and sealing block piece setting is expert at
Between journey valve and mandril, mandril promotion sealing block piece makes sealing block piece in an open position or blocking position, when sealing block piece position
When open position, first, second oil communication, when seal block piece be located at blocking position when first, second oil circuit closing.
It is the attached technical scheme of the utility model below.
Preferably, the stroke valve includes valve body, pedestal, spring and sliding block, and pedestal and sliding block are arranged on valve body
In, the spring is arranged between pedestal and sliding block, and the sealing block piece is arranged on sliding block axial sides.
Preferably, the pedestal has protrusion, and spring is set on protrusion.
Preferably, the mandril includes the body of rod, and the body of rod is located in interface channel, and the diameter of the body of rod is less than connection and leads to
The diameter in road.
Preferably, expansion cavity is equipped between the interface channel and the first oil circuit, the diameter of expansion cavity, which is more than, to be connected
Connect the diameter in road.
Preferably, the sliding block includes protrusion, protrusion and sealing flights contact.
A kind of multistage hydraulic cylinder, including stroke valve module, piston rods at different levels, rod chamber and rodless cavity, stroke valve module are set
It puts in piston-rod ends at different levels, first oil circuit is connected with this grade of rod chamber, and second oil circuit is connected with higher level's rod chamber.
Preferably, the Cartridge inserted valve integrated block of stroke valve module is arranged on piston-rod ends at different levels.
Preferably, the mandril includes contact jaw, contact jaw and the higher level's plunger rod contacts of this grade of mandril.
The technique effect of the utility model：A kind of stroke valve module of the utility model can control the double cropping of rod end oil inlet
With the run action of multi-stage oil cylinder sequence, while extend Multi-stage cylinder seal durability；Furthermore, it is not necessary that in piston rods at different levels
On processing radial direction oil-through-hole, effectively eliminate the hidden danger of sealing element vias at different levels abrasion.
Description of the drawings
Fig. 1 is the structure chart of existing multistage hydraulic cylinder in the utility model background technology.
Fig. 2 is that a kind of sealing block piece of stroke valve module of the utility model embodiment is in the schematic diagram of blocking position.
Fig. 3 is a kind of sealing block piece of stroke valve module of the utility model embodiment schematic diagram in an open position.
Fig. 4 is a kind of schematic diagram of multistage hydraulic cylinder of the utility model embodiment.
Fig. 5 is a kind of schematic diagram of stroke valve module of the utility model embodiment.
Specific embodiment
In the following, the substantive distinguishing features and advantage of the utility model are further described with reference to example, but this practicality is new
Type is not limited to listed embodiment.
As shown in Figures 2 to 5, a kind of stroke valve module of the present embodiment includes Cartridge inserted valve integrated block 1, stroke valve 2, the first oil circuit
3, the second oil circuit 4 seals block piece 5, and mandril 6 and interface channel 7, the stroke valve 2 are arranged in Cartridge inserted valve integrated block 1.Interface channel 7
Across the first oil circuit and the second oil circuit, first, second oil circuit is connected by interface channel 7.Mandril 6 is arranged in interface channel 7,
Sealing block piece 5 is arranged between stroke valve 2 and mandril 6, and mandril 6 pushes sealing block piece to make sealing block piece in an open position or hinder
Disconnected position, when sealing block piece and being located at open position, first, second oil communication, when sealing block piece is located at blocking position the
First, the second oil circuit is closed.In above-mentioned technical proposal, mandril can move in interface channel, by pushing mandril so that mandril
Band dynamic sealing block piece slides, so as to which sealing block piece be enable to make first, second oil communication or closing, so as to control first, the
The break-make of two oil circuits.In the present embodiment, the sealing block piece is sphere.
In the present embodiment, the stroke valve 2 includes valve body 21, pedestal 22, spring 23 and sliding block 24, pedestal 22 and sliding block 24
It is arranged in valve body, the spring 23 is arranged between pedestal and sliding block, and the sealing block piece 5 is arranged on sliding block axial sides.
Through the above technical solutions, so that spring-compressed after mandril stress so that sealing block piece is located at open position, and spring reset can
Sealing block piece is made to be in blocking position.
In the present embodiment, the pedestal 22 has protrusion 221, and spring is set on protrusion.
In the present embodiment, the mandril 6 includes the body of rod 61, and the body of rod is located in interface channel 7, and the diameter of the body of rod is less than connection
The diameter of channel so that fluid can be flowed by the gap between the body of rod and interface channel.
In the present embodiment, expansion cavity 71 is equipped between 7 and first oil circuit 3 of interface channel, the diameter of expansion cavity 71 is big
In the diameter of interface channel.So that sealing block piece can enter in expansion cavity, realize and block interface channel.
In the present embodiment, the sliding block 24 includes protrusion 241, protrusion 241 and sealing flights contact.
A kind of multistage hydraulic cylinder of the present embodiment, including above-mentioned stroke valve module, piston rods at different levels, rod chamber and without bar
Chamber, stroke valve module are arranged on piston-rod ends at different levels, and first oil circuit 3 is connected with this grade of rod chamber, second oil circuit 4
It is connected with higher level's rod chamber.In above-mentioned technical proposal, stroke valve module is set in piston-rod ends at different levels, be connected by screw bolts,
End face seal mode is effectively connected, and the break-make of this grade of rod chamber 8 and 9 fluid of higher level's rod chamber is controlled, in this grade of piston rod
During Overstroke, stroke valve stack face develops and the stroke valve rod of open-top higher level's piston rod balance valve module, and oil circuit is step by step
It connects, ensures piston rod recycling sequence.This structure type does not need to the processing radial direction oil-through-hole on piston rods at different levels, effectively
Eliminate the hidden danger of sealing element via abrasions at different levels.
In the present embodiment, the Cartridge inserted valve integrated block 1 of stroke valve module is arranged on piston-rod ends at different levels.The mandril 6 includes connecing
Contravention 62, contact jaw and the higher level's plunger rod contacts of this grade of mandril.
A kind of multistage hydraulic cylinder of the present embodiment, when piston rod stretches out：Pressure oil is entered by hydraulic cylinder rod end hydraulic fluid port, warp
Oil guide pipe enters rodless cavities at different levels, during piston rod stretches out, when this grade of piston rod stroke valve module end face is detached from higher level's stroke
During valve module end face, stroke valve rod stretches out the first oil circuit under spring force and the second oil circuit is closed.When piston rod is retracted：
Pressure oil is entered by hydraulic cylinder rod end hydraulic fluid port, enters rod chambers at different levels through this grade of piston rod inner oil duct, stroke valve module；Specifically
, in piston rod retraction process, pressure oil enters the first oil circuit of stroke valve through oil circuit, when the piston rod of retraction in place pushes row open
During journey valve mandril 6, the first oil circuit of stroke valve and the second oil circuit are connected, i.e. this grade of rod chamber is connected with upper level rod chamber, complete
Into the sequence retracting action of piston rod, this grade of rod chamber and upper level rod chamber only this grade of piston rod operation in place, push row open
It is connected during journey valve mandril.In addition, stroke valve plays safeguard protection simultaneously, the overpressure protection to upper level rod chamber is realized.
A kind of stroke valve module of the present embodiment can control the run action of the double-acting multilevel oil cylinder of rod end oil inlet suitable
Sequence, while extend Multi-stage cylinder seal durability；Furthermore, it is not necessary that the processing radial direction oil-through-hole on piston rods at different levels, has
Effect eliminates the hidden danger of sealing element via abrasions at different levels.
It should be pointed out that above-mentioned preferred embodiment is only to illustrate the technical concepts and features of the utility model, purpose
It is the content for allowing person skilled in the art that can understand the utility model and implements according to this, can not this reality be limited with this
With novel protection domain.All equivalent change or modifications substantially made according to the spirit of the present invention, should all cover in this reality
Within novel protection domain.
Claims (9)
1. a kind of stroke valve module, which is characterized in that including Cartridge inserted valve integrated block, stroke valve, the first oil circuit, the second oil circuit, sealing gear
Part, mandril and interface channel, the stroke valve are arranged in Cartridge inserted valve integrated block, and interface channel passes through the first oil circuit and the second oil circuit,
First, second oil circuit is connected by interface channel, and mandril is arranged in interface channel, and sealing block piece is arranged on stroke valve and mandril
Between, mandril promotion sealing block piece makes sealing block piece in an open position or blocking position, when sealing block piece is located at open position
When, first, second oil communication, when seal block piece be located at blocking position when first, second oil circuit closing.
2. stroke valve module as described in claim 1, which is characterized in that the stroke valve includes valve body, pedestal, spring and cunning
Block, pedestal and sliding block are arranged in valve body, and the spring is arranged between pedestal and sliding block, and the sealing block piece is arranged on sliding block
Axial sides.
3. stroke valve module as claimed in claim 2, which is characterized in that the pedestal has protrusion, and spring is set in convex
Go out in portion.
4. stroke valve module as described in claim 1, which is characterized in that the mandril includes the body of rod, and it is logical that the body of rod is located at connection
In road, the diameter of the body of rod is less than the diameter of interface channel.
5. stroke valve module as described in claim 1, which is characterized in that be equipped with and expand between the interface channel and the first oil circuit
Chamber is opened, the diameter of expansion cavity is more than the diameter of interface channel.
6. stroke valve module as claimed in claim 2, which is characterized in that the sliding block includes protrusion, protrusion and sealing block piece
Contact.
7. a kind of multistage hydraulic cylinder, which is characterized in that including the stroke valve group described in any claim in claim 1 to 6
Part, piston rods at different levels, rod chamber and rodless cavity, stroke valve module are arranged on piston-rod ends at different levels, first oil circuit and sheet
Grade rod chamber connection, second oil circuit are connected with higher level's rod chamber.
8. multistage hydraulic cylinder as claimed in claim 7, which is characterized in that the Cartridge inserted valve integrated block of stroke valve module is arranged on work at different levels
Stopper rod end.
9. multistage hydraulic cylinder as claimed in claim 8, which is characterized in that the mandril includes contact jaw, this grade of mandril connects
Contravention and higher level's plunger rod contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721641241.XU CN207568968U (en) | 2017-11-30 | 2017-11-30 | A kind of stroke valve module and multistage hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721641241.XU CN207568968U (en) | 2017-11-30 | 2017-11-30 | A kind of stroke valve module and multistage hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207568968U true CN207568968U (en) | 2018-07-03 |
Family
ID=62689191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721641241.XU Active CN207568968U (en) | 2017-11-30 | 2017-11-30 | A kind of stroke valve module and multistage hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207568968U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953288A (en) * | 2018-09-30 | 2018-12-07 | 中国船舶重工集团公司第七〇九研究所 | Pin-lift arrangement for Double Acting Telescopic Hydraulic Cylinder |
| CN108999825A (en) * | 2018-09-30 | 2018-12-14 | 中船重工重庆液压机电有限公司 | Check valve assembly for Double Acting Telescopic Hydraulic Cylinder |
| CN108999837A (en) * | 2018-09-30 | 2018-12-14 | 中国船舶重工集团公司第七〇九研究所 | Cylinder body oil inlet Double Acting Telescopic Hydraulic Cylinder |
| CN108999836A (en) * | 2018-09-30 | 2018-12-14 | 中船重工重庆液压机电有限公司 | Piston rod oil inlet Double Acting Telescopic Hydraulic Cylinder |
-
2017
- 2017-11-30 CN CN201721641241.XU patent/CN207568968U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953288A (en) * | 2018-09-30 | 2018-12-07 | 中国船舶重工集团公司第七〇九研究所 | Pin-lift arrangement for Double Acting Telescopic Hydraulic Cylinder |
| CN108999825A (en) * | 2018-09-30 | 2018-12-14 | 中船重工重庆液压机电有限公司 | Check valve assembly for Double Acting Telescopic Hydraulic Cylinder |
| CN108999837A (en) * | 2018-09-30 | 2018-12-14 | 中国船舶重工集团公司第七〇九研究所 | Cylinder body oil inlet Double Acting Telescopic Hydraulic Cylinder |
| CN108999836A (en) * | 2018-09-30 | 2018-12-14 | 中船重工重庆液压机电有限公司 | Piston rod oil inlet Double Acting Telescopic Hydraulic Cylinder |
| CN108999825B (en) * | 2018-09-30 | 2024-05-10 | 中船重庆液压机电有限公司 | One-way valve assembly for double-acting multi-stage hydraulic cylinder |
| CN108999836B (en) * | 2018-09-30 | 2024-05-24 | 中船重庆液压机电有限公司 | Piston rod oil inlet double-acting multistage hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.2667, Xinglong Avenue, Yongchuan District, Chongqing 402160 Patentee after: China Shipbuilding Chongqing Hydraulic Electromechanical Co.,Ltd. Address before: No.2667, Xinglong Avenue, Yongchuan District, Chongqing 402160 Patentee before: CSIC CHONGQING HYDRAULIC MECHANICAL-ELECTRONICAL Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |