CN207935196U - A kind of hydraulic cylinder with anti-shear structure - Google Patents
A kind of hydraulic cylinder with anti-shear structure Download PDFInfo
- Publication number
- CN207935196U CN207935196U CN201721862272.8U CN201721862272U CN207935196U CN 207935196 U CN207935196 U CN 207935196U CN 201721862272 U CN201721862272 U CN 201721862272U CN 207935196 U CN207935196 U CN 207935196U
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- China
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- oil
- oil cylinder
- cylinder
- storage tank
- valve
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Abstract
The utility model discloses a kind of hydraulic cylinders with anti-shear structure, including oil cylinder, oil storage tank, piston；Piston is slidably assemblied in the oil cylinder, the oil cylinder inner space is divided into rodless cavity and rod chamber by piston, the rodless cavity is connected to the oil storage tank inner space, oil storage tank is coaxially connected by assembly cooperation between logic valve deck, oil cylinder rear cover and oil cylinder, the logical valve is covered with sets valve chamber for accommodate logical valve, the logic valve face is concordant with the end face of logic valve deck, is covered after the logic valve deck, logical valve, oil cylinder equipped with the oil pipe road for being connected to oil storage tank with oil cylinder.Process and assemble difficulty can be substantially reduced, reduce production cost, even if a small amount of offset occurs for the rigging position of logic valve deck and oil cylinder rear cover, as long as oil pipe road is also connected to the oil-through-hole of the two in the spool of logical valve, hydraulic cylinder can be continuing with, the stability and durability for improving hydraulic cylinder of high degree.
Description
Technical field
The utility model is related to technical field of hydraulic oil cylinder, more particularly to a kind of hydraulic cylinder with anti-shear structure.
Background technology
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy, does straight reciprocating motion（Or pendulum motion）Hydraulic pressure execute
Element.Its simple in structure, reliable operation.Deceleration device when realizing reciprocating motion, can be removed from it, and without between transmission
Gap, stable movement, therefore be used widely in the hydraulic system of various machineries.Hydraulic stem, which moves reciprocatingly, mainly to be passed through
The variation of the hydraulic pressure difference on piston rod both sides realizes, particularly as being controlled with closing by the opening of logical valve.
However, adding since logical valve needs to be connected to the oil pocket of piston rod both sides in existing hydraulic cylinder
Work needs a logical valve part being placed in the oil pocket component of left side when installing, and another part is placed in the oil pocket component of right side, this
It is especially high to the coaxial accuracy requirement of left side oil pocket component, logical valve, right side oil pocket component three to process installation method, if
As long as three does not reach requirement there are one concentricity and is difficult to assembly up, therefore difficulty of processing is big, and production cost is high, Er Qie
Once three position shifts during use, logical valve will be cut by the radial direction applied from left and right sides oil pocket component
Shear force deforms upon so as to cause logic valve core, since the oil pipe road diameter opened up in the spool of logical valve generally all compares
It is smaller, easily cause the oil pipe road in spool to block once logical valve deforms upon, and spool can also block, entirely
Hydraulic cylinder also loses effectiveness.Therefore existing oil cylinder structure of hydraulic leads to its not only high processing costs, but also fluctuation of service,
Oil circuit easily occurs to block.
Utility model content
The purpose of this utility model be in view of the above-mentioned problems, provide a kind of hydraulic cylinder with anti-shear structure, both can be with
It reduces difficulty of processing and can ensure that logical valve will not cause oil circuit to block due to by shearing force during installing and using again.
To achieve the above object, the method for the utility model use is：A kind of hydraulic cylinder with anti-shear structure, including
Oil cylinder, oil storage tank, piston；The piston is slidably assemblied in the oil cylinder, and the piston is by the oil cylinder inner space
Be divided into rodless cavity and rod chamber, the rodless cavity is connected to the oil storage tank inner space, the oil storage tank by logic valve deck,
Assembly cooperation between oil cylinder rear cover is coaxially connected with the oil cylinder, and the logical valve is covered with for accommodating setting for logical valve
Valve chamber, the logic valve face is concordant with the end face of logic valve deck, covers and sets after the logic valve deck, logical valve, oil cylinder
There is the oil pipe road for being connected to oil storage tank with oil cylinder.
As a kind of improvement of the utility model, oil cylinder rear cover both sides are respectively equipped with begins to speak to begin to speak with small greatly, described
It is big to begin to speak for accommodating oil cylinder, it is described it is small begin to speak for the coaxial assembly connection of logic valve deck.
As a kind of improvement of the utility model, is covered after the oil cylinder and offer cylindrical oil-through-hole, the cylinder
Oil-through-hole small begins to speak to be connected to described.
As a kind of improvement of the utility model, the logical valve is covered equipped with for connecting oil storage tank and the logical valve
Logical taper oil-through-hole.
As a kind of improvement of the utility model, the logical valve, which covers, is also equipped with oil return pipe, and the oil return pipe is placed in
In the oil storage tank.
Advantageous effect：
A kind of hydraulic cylinder with anti-shear structure, logical valve is directly fully recessed into logic valve deck, spool be not easy by
Block, at this moment need to only ensure the coaxially connected of logic valve deck and oil cylinder rear cover, and the concentricity of the two require it is relatively low, can
To be substantially reduced process and assemble difficulty, production cost is reduced, and even if logic valve deck and the rigging position of oil cylinder rear cover occur
Offset, as long as oil pipe road is also connected to the oil-through-hole of the two in the spool of logical valve, hydraulic cylinder can be continuing with, very big journey
The stability and durability for improving hydraulic cylinder of degree.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the logic valve deck structural schematic diagram of the utility model；
Fig. 3 is the oil cylinder rear cover structure schematic diagram of the utility model.
Each component is in figure：
1- oil cylinders, 101- rodless cavities, 102- rod chambers, 2- oil storage tanks, 3- pistons, 4- logic valve decks, 401- set valve chamber,
402- taper oil-through-holes, 5- oil cylinder rear covers, 501- begin to speak greatly, and 502- is small to begin to speak, 503- cylinder oil-through-holes, 6- logical valves, 7-
Oil return pipe.
Specific implementation mode
It is further described with reference to embodiment and with reference to attached drawing to the utility model, it should be understood that following specific embodiment parties
Formula is merely to illustrate the utility model rather than limitation the scope of the utility model.It should be noted that making in being described below
Word "front", "rear", "left", "right", "up" and "down" refer to that the direction in width figure, word "inner" and "outside" respectively refer to
Be directed towards or far from geometric center of specific component direction.
A kind of hydraulic cylinder with anti-shear structure as described in Figure, including oil cylinder 1, oil storage tank 2, piston 3；The piston 3
It is slidably assemblied in the oil cylinder 1,1 inner space of the oil cylinder is divided into rodless cavity 101 and rod chamber by the piston 3
102, the rodless cavity 101 is connected to 2 inner space of the oil storage tank, and the oil storage tank 2 passes through logic valve deck 4, oil cylinder rear cover 5
Between assembly cooperation it is coaxially connected with the oil cylinder 1, the logic valve deck 4 for accommodate logical valve 6 equipped with setting valve chamber
401,6 end face of the logical valve is concordant with the end face of the logic valve deck 4, the logic valve deck 4, logical valve 6, oil cylinder rear cover 5
It is equipped with the oil pipe road for being connected to oil storage tank 2 with oil cylinder 1.
The principles of the present invention：Existing in-oil cylinder oil pipe road is by logic valve deck, logical valve, oil cylinder rear cover
Three sections of oil pipe roads form, and the oil pipe road in logic valve core is used to be connected to the oil pocket of both sides, realize hydraulic oil on both sides
Circulation will make hydraulic cylinder fail once the somewhere in entire oil pipe road occurs to block, and the oil pipe road diameter of spool compared with
There is subtle deformation that will block to cause the oil circuit on both sides obstructed once small, and the logical valve of the utility model is placed in logic valve deck
It will not need to only be ensured that logical valve covers the pipeline opening in oil pipe road and encompasses the oil pipe of logic valve core by radial shear power
Road, and the oil pipe road that the pipeline opening that oil pipe road is covered after oil cylinder encompasses logic valve core can guarantee the entire logical of oil cylinder
Oil-piping is unimpeded, and not only in processing, assembly, element coaxial degree is of less demanding for the hydraulic cylinder of this structure, in use portion
The offset upper limit that part part allows is also larger, can significantly improve the durability and stability of oil cylinder.
As a kind of improvement of the utility model, 5 both sides of oil cylinder rear cover, which are respectively equipped with, big begins to speak 501 to begin to speak with small
502, it is described it is big begin to speak 501 for accommodating oil cylinder 1, it is described it is small begin to speak 502 for and 4 coaxial assembly connection of the logic valve deck.
As a kind of improvement of the utility model, cylindrical oil-through-hole 503, the circle are offered on the oil cylinder rear cover 5
Cylindricality oil-through-hole 503 small begins to speak 502 to be connected to described.
As a kind of improvement of the utility model, the logic valve deck 4 is equipped with for by oil storage tank 2 and the logical valve
The taper oil-through-hole 402 of 6 connections.
As a kind of improvement of the utility model, oil return pipe 7 is also equipped on the logic valve deck 4, the oil return pipe 7 is set
In in the oil storage tank 2.
A kind of hydraulic cylinder with anti-shear structure provided by the utility model, logical valve is directly fully recessed by logical valve
Gai Zhong, spool are not easy to be stuck, and at this moment need to only ensure the coaxially connected of logic valve deck and oil cylinder rear cover, and the two is same
The requirement of axis degree is relatively low, can be substantially reduced process and assemble difficulty, reduces production cost, and even if logic valve deck and oil cylinder rear cover
Rigging position shift, as long as oil pipe road is also connected to the oil-through-hole of the two in the spool of logical valve, hydraulic cylinder energy
It is continuing with, the stability and durability for improving hydraulic cylinder of high degree.
The above descriptions are merely preferred embodiments of the present invention, is not to make any other to the utility model
The limitation of form, and according to any modification or equivalent variations made by the technical essence of the utility model, it is new to still fall within this practicality
Type range claimed.
Claims (5)
1. a kind of hydraulic cylinder with anti-shear structure, it is characterised in that：Including oil cylinder, oil storage tank, piston；The piston can be slided
Dynamic is assemblied in the oil cylinder, and the oil cylinder inner space is divided into rodless cavity and rod chamber, the rodless cavity by the piston
It is connected to the oil storage tank inner space, the oil storage tank is coordinated by the assembly between logic valve deck, oil cylinder rear cover and institute
State that oil cylinder is coaxially connected, the logical valve is covered with the valve chamber of setting for accommodating logical valve, and the logic valve face is patrolled with described
The end face for collecting valve deck is concordant, is covered after the logic valve deck, logical valve, oil cylinder equipped with the oil pipe for being connected to oil storage tank with oil cylinder
Road.
2. a kind of hydraulic cylinder with anti-shear structure according to claim 1, it is characterised in that：The oil cylinder rear cover two
Side is respectively equipped with begins to speak to begin to speak with small greatly, it is described it is big begin to speak for accommodating oil cylinder, it is described it is small begin to speak for the logic valve deck
Coaxial assembly connection.
3. a kind of hydraulic cylinder with anti-shear structure according to claim 2, it is characterised in that：It is covered after the oil cylinder
Offer cylindrical oil-through-hole, the cylinder oil-through-hole small begins to speak to be connected to described.
4. a kind of hydraulic cylinder with anti-shear structure according to claim 1, it is characterised in that：The logical valve covers
Equipped with the taper oil-through-hole for oil storage tank to be connected to the logical valve.
5. a kind of hydraulic cylinder with anti-shear structure according to claim 1, it is characterised in that：The logical valve covers
It is also equipped with oil return pipe, the oil return pipe is placed in the oil storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721862272.8U CN207935196U (en) | 2017-12-27 | 2017-12-27 | A kind of hydraulic cylinder with anti-shear structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721862272.8U CN207935196U (en) | 2017-12-27 | 2017-12-27 | A kind of hydraulic cylinder with anti-shear structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207935196U true CN207935196U (en) | 2018-10-02 |
Family
ID=63647080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721862272.8U Withdrawn - After Issue CN207935196U (en) | 2017-12-27 | 2017-12-27 | A kind of hydraulic cylinder with anti-shear structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207935196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087376A (en) * | 2017-12-27 | 2018-05-29 | 盐城市华森机械有限公司 | A kind of hydraulic cylinder with anti-shear structure |
-
2017
- 2017-12-27 CN CN201721862272.8U patent/CN207935196U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087376A (en) * | 2017-12-27 | 2018-05-29 | 盐城市华森机械有限公司 | A kind of hydraulic cylinder with anti-shear structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181002 Effective date of abandoning: 20200428 |
|
| AV01 | Patent right actively abandoned |