CN108691839A - A kind of plug-in pile-up valve - Google Patents
A kind of plug-in pile-up valve Download PDFInfo
- Publication number
- CN108691839A CN108691839A CN201810832441.6A CN201810832441A CN108691839A CN 108691839 A CN108691839 A CN 108691839A CN 201810832441 A CN201810832441 A CN 201810832441A CN 108691839 A CN108691839 A CN 108691839A
- Authority
- CN
- China
- Prior art keywords
- blind hole
- valve
- valve casing
- spool
- hydraulic fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/022—Flow-dividers; Priority valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
- F15B2013/004—Cartridge valves
Abstract
The present invention proposes a kind of plug-in pile-up valve, including:Valve casing, baffle ring, compensating spool, the first spring, overflow spool, second spring, spring base, valve deck.Plug-in pile-up valve according to the ... of the embodiment of the present invention, processing is simple, volume compact, be integrated with preferential flow divider valve and overflow valve function, be suitble to integrated form design, fluid pressure line can be simplified.
Description
Technical field
The present invention relates to a kind of plug-in pile-up valves.
Background technology
In the mechanical equipments such as modern engineering machinery, building machinery, type of priority hydraulic circuit, such as fork truck have been widely applied
Deng, using flow divider, the press liquid that has that single hydraulic power source provides is shunted, it is preferential to ensure that certain flow is used in steering
Meanwhile residual flow supplies charge and discharge operations.In this way, for specific purposes such as steerings, preferentially ensures the flow divider of certain flow, claimed
For preferential flow divider valve.In addition to comprising preferential flow divider valve, to be also integrated with for priority traffic branch in type of priority hydraulic circuit
It plays the overflow valve of safety protection function, in existing type of priority hydraulic circuit, is typically processed on the hydraulic valve of casting
Shunt valve opening, overflow valve opening, then by the parts of flow divider and overflow valve be mounted on corresponding hole in, it is not only bulky, plus
Work difficulty is big, of high cost, also to carry out oil circuit connection, fluid pressure line by other hydraulic valves in hydraulic hose and hydraulic circuit
More, easy leakage, is not suitable for the high compact design of integration degree.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of processing is simple, volume compact, be integrated with preferential flow divider valve and
Overflow valve function, suitable integrated form design, the plug-in pile-up valve that fluid pressure line can be simplified.
A kind of plug-in pile-up valve according to the ... of the embodiment of the present invention, which is characterized in that including:
Valve casing, the valve casing have the second valve casing blind hole of the first valve casing blind hole and opening to the left of opening to the right, institute
The first hydraulic fluid port and the second hydraulic fluid port for having on the side wall of valve casing and being connected to the first valve casing blind hole are stated, first hydraulic fluid port is located at institute
The left side of the second hydraulic fluid port is stated, the right opening of the first valve casing blind hole is configured to third hydraulic fluid port, and the second valve casing blind hole is rank
Terraced hole has the 4th hydraulic fluid port for being connected to the second valve casing blind hole heavy caliber portion on the side wall of the valve casing, has on the valve casing
There is runner, one end of the runner is connected to the bottom in the small-bore portion of the second valve casing blind hole and the other end of the runner is suitable
It is connected in first hydraulic fluid port;
Baffle ring, the baffle ring fixation is located in the first valve casing blind hole and the left side of the baffle ring is adjacent to described second
The right side of hydraulic fluid port;
Compensating spool, the compensating spool can movably be located in the first valve casing blind hole and be located at the baffle ring
The left side, there is on the compensating spool compensating spool blind hole of opening to the left, have on the right side of the compensating spool and connect
Lead to the throttle orifice of the compensating spool blind hole, there is be connected to the compensating spool blind hole first on the side wall of the compensating spool
Through flow hole has on the side wall of the compensating spool to be connected to the throttling channel of first through flow hole and first hydraulic fluid port,
The compensating spool blind hole limits compensated cavity with the first valve casing blind hole;
First spring, first spring are located in the compensating spool blind hole, and the left end of first spring is against institute
The right end of the bottom of the first valve casing blind hole and first spring is stated against the bottom of the compensating spool blind hole, first bullet
Spring often pushes the compensating spool to the right so that the right side of the compensating spool is against the left side of the baffle ring, at this point, institute
The periphery wall for stating compensating spool closes the first hydraulic fluid port described in second hydraulic fluid port and the throttling channel face;
Overflow spool, the overflow spool can be movably located in the second valve casing blind hole, the overflow spool
The glissile segment that is slidably matched with the heavy caliber portion with the second valve casing blind hole and small-bore with the second valve casing blind hole
Portion is matched to control the conical surface section of the runner and the 4th hydraulic fluid port break-make, has the overflow of opening to the left on the overflow spool
Spool blind hole has on the side wall of the overflow spool through-flow to be connected to the second of the overflow spool blind hole and the 4th hydraulic fluid port
Hole;
There is the valve deck blind hole of opening to the right, the left end of the valve casing to be plugged on the valve deck blind hole for valve deck, the valve deck
Right end in limit draining chamber;
Spring base, the spring base are located at the draining intracavitary, and described spring base one end offsets with the overflow spool;
Second spring, the second spring are located at the draining intracavitary, and the left end of the second spring is against the valve deck
For the right end of the bottom of blind hole and the second spring against the other end of the spring base, the second spring often pushes to the right institute
Overflow spool is stated so that the overflow spool often closes the small-bore portion of the second valve casing blind hole.
Advantageously, the plug-in pile-up valve further includes end plug, and the end plug is located at the draining intracavitary and the end plug
Left end stretch out to the left outside the valve deck, the left end of the second spring is socketed on the right end of the end plug.
Advantageously, there is the third through flow hole axially penetrated through in the spring base.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
Fig. 1 is the schematic diagram of plug-in pile-up valve according to an embodiment of the invention;
Fig. 2 is the hydraulic schematic diagram of plug-in pile-up valve according to an embodiment of the invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings it is described in detail plug-in pile-up valve according to the ... of the embodiment of the present invention.
As depicted in figs. 1 and 2, a kind of plug-in pile-up valve according to the ... of the embodiment of the present invention, including:Valve casing 1, baffle ring 2 are mended
Repay spool 3, the first spring 4, overflow spool 5, spring base 6, second spring 7, valve deck 8 and end plug 9.
Valve casing 1 has the second valve casing blind hole of the first valve casing blind hole and opening to the left of opening to the right.The side wall of valve casing 1
It is upper to be located at second oil with the first hydraulic fluid port A for being connected to the first valve casing blind hole and the second hydraulic fluid port B, the first hydraulic fluid port A
The left side of mouth B.The right opening of first valve casing blind hole is configured to third hydraulic fluid port P.The second valve casing blind hole is stepped hole, valve casing 1
Side wall on there is the 4th hydraulic fluid port T for being connected to the second valve casing blind hole heavy caliber portion.There is runner 101, runner on valve casing 1
101 one end is connected to the small-bore bottom not of the second valve casing blind hole and the other end of runner 101 is suitable for and the first hydraulic fluid port A
It is connected.
The fixation of baffle ring 2 is located in the first valve casing blind hole and the left side of baffle ring 2 is adjacent to the right side of the second hydraulic fluid port B.
Compensating spool 3 can movably be located at the left side in the first valve casing blind hole and positioned at baffle ring 2, compensating spool
There is the compensating spool blind hole of opening to the left on 3, there is the throttle orifice of connection compensating spool blind hole on the right side of compensating spool 3
31, there is on the side wall of compensating spool 3 the first through flow hole 32 for being connected to the compensating spool blind hole, the side of the compensating spool 3
Have on wall to be connected to the throttling channel 33 of first through flow hole 32 and the first hydraulic fluid port A, the compensating spool blind hole with
The first valve casing blind hole limits compensated cavity 1a.
First spring 4 is located in the compensating spool blind hole, and the left end of the first spring 4 is against the first valve casing blind hole
The right end of bottom and the first spring 4 is against the bottom of the compensating spool blind hole.First spring 4 often pushes to the right the recuperation valve
Core 3 so that the right side of compensating spool 3 against the left side of baffle ring 2.At this point, the periphery wall of compensating spool 3 closes the second hydraulic fluid port B
And 32 the first hydraulic fluid port of face A (that is, the axis of the first through flow hole 32 is overlapped with the axis of the first hydraulic fluid port A) of the first through flow hole.
Overflow spool 5 can be movably located in the second valve casing blind hole, and the overflow spool 5 has and described the
The glissile segment and matched with the small-bore portion of the second valve casing blind hole to control that the heavy caliber portion of two valve casing blind holes is slidably matched
The conical surface section 53 of the runner 101 and the 4th hydraulic fluid port T break-makes is made, there is the overflow spool of opening to the left on the overflow spool 5
Blind hole 52 has on the side wall of the overflow spool 5 logical to be connected to the second of the overflow spool blind hole 52 and the 4th hydraulic fluid port T
Discharge orifice 51.
There is valve deck 8 the valve deck blind hole of opening to the right, the left end of valve casing 1 to be plugged in the right end of the valve deck blind hole with limit
Make draining chamber 8a.
Spring base 6 is located in the draining chamber 8a, and 6 one end of the spring base offsets with overflow spool 5.Tool in spring base 6
There is the third through flow hole 61 axially penetrated through.
Second spring 7 is located in draining chamber 8a, and the left end of second spring 7 is against the bottom of the valve deck blind hole and the second bullet
For the right end of spring 7 against the other end of spring base 6, the second spring 7 is normal to the right to push overflow spool 5 so that overflow spool 5 is normal
Close the small-bore portion of the second valve casing blind hole.
End plug 9 is located in draining chamber 8a and the left end of end plug 9 is stretched out to the left outside valve deck 8, and the left end of second spring 7 is socketed in
On the right end of end plug 9.
The operation principle of plug-in pile-up valve according to the ... of the embodiment of the present invention is as follows:
In actual use, third hydraulic fluid port P is connected with hydraulic pump outlet, the first hydraulic fluid port A (such as turns for priority acccess control
To), the second hydraulic fluid port B connects the handling oil circuit of other oil circuits such as fork truck, and the 4th hydraulic fluid port T is connected with fuel tank.
Fluid is entered by third hydraulic fluid port P, enters compensated cavity 1a by the throttle orifice 31 on compensating spool 3, then through first
Through flow hole 32 reaches the first hydraulic fluid port A.If the flow of hydraulic pump cannot meet the first hydraulic fluid port A requirements of one's work, flow at this time
The pressure difference generated after throttle orifice 31, the i.e. pressure difference of third hydraulic fluid port P and compensated cavity 1a act on pushing away of being generated on compensating spool 3
Power cannot overcome the active force of the first spring 4, then compensating spool 3 works position shown in Fig. 1, and the second hydraulic fluid port B is blocked at this time
Firmly, fluid all third hydraulic fluid port P all enters the first hydraulic fluid port A work.
If the flow that third hydraulic fluid port P is flowed into is more than the flow of the first hydraulic fluid port A work requirements, generated by throttle orifice 31
Differential pressure action pushes compensating spool 3 to move downward on compensating spool 3, on the one hand opens the second hydraulic fluid port B, on the other hand reduces section
The connection area of chute 33 and the first hydraulic fluid port A, in this way can be under the premise of meeting the first hydraulic fluid port A flows needs, the first oil of control
Mouth A stability of flow does not change with the fluctuation of the first hydraulic fluid port A loads.Specifically, if the first hydraulic fluid port A loads become larger, can lead
It causes the pressure of compensated cavity 1a to become larger, and then the pressure difference before and after throttle orifice 31 is made to become smaller, compensating spool 3, which then moves right, increases throttling
The connection area of slot 33 and the first hydraulic fluid port A, can make the pressure of compensated cavity 1a become smaller in this way, and then ensure the pressure before and after throttle orifice 31
Difference is basically unchanged;If the first hydraulic fluid port A loads become smaller, the pressure difference before and after throttle orifice 31 becomes larger, and compensating spool 3 moves downward,
The connection area for reducing throttling channel 33 and the first hydraulic fluid port A, makes the pressure of compensated cavity 1a increase, and then ensures the front and back pressure of throttle orifice 31
Difference is basically unchanged.
The fluid of first hydraulic fluid port A is connected with overflow spool 5 always by runner 101, if the first hydraulic fluid port A pressure is more than
The pressure that second spring 7 is set, then the fluid of the first hydraulic fluid port A acted on overflow spool 5 by runner 101 and push overflow valve
Core 5 overcomes the active force of second spring 7 to open the small-bore portion of the second valve casing blind hole to the left, and the fluid of the first hydraulic fluid port A is leaked into
4th hydraulic fluid port T, plays the role of safeguard protection, until the first hydraulic fluid port A pressure reductions to setting pressure hereinafter, overflow spool 5 to the left
Move the small-bore portion that conical surface section 53 closes the second valve casing blind hole.
Plug-in pile-up valve according to the ... of the embodiment of the present invention has the beneficial effect that:
(1) preferential diverter function and flood protection feature are integrated, it is volume compact, simple in structure and at low cost.
(2) because integrated effect can reduce the processing cost of type of priority hydraulic circuit integrated package, reduce integrated package volume and
Weight.
(3) plug-in designs, and convenient for Integration Design, simplifies hydraulic circuit.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more, unless separately
There is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;Can be that machinery connects
It connects, can also be electrical connection;It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are within the scope of the invention to above-mentioned implementation
Example is changed, changes, replacing and modification, each falls within protection scope of the present invention.
Claims (3)
1. a kind of plug-in pile-up valve, which is characterized in that including:
Valve casing, the valve casing have the second valve casing blind hole of the first valve casing blind hole and opening to the left of opening to the right, the valve
There is the first hydraulic fluid port and the second hydraulic fluid port for being connected to the first valve casing blind hole, first hydraulic fluid port is located at described the on the side wall of shell
The right opening in the left side of two hydraulic fluid ports, the first valve casing blind hole is configured to third hydraulic fluid port, and the second valve casing blind hole is stepped hole,
There is the 4th hydraulic fluid port for being connected to the second valve casing blind hole heavy caliber portion on the side wall of the valve casing, there is stream on the valve casing
Road, one end of the runner be connected to the bottom in the small-bore portion of the second valve casing blind hole and the other end of the runner be suitable for
First hydraulic fluid port is connected;
Baffle ring, the baffle ring fixation is located in the first valve casing blind hole and the left side of the baffle ring is adjacent to second hydraulic fluid port
Right side;
Compensating spool, the compensating spool can movably be located at the left side in the first valve casing blind hole and positioned at the baffle ring
Face has the compensating spool blind hole of opening to the left on the compensating spool, has connection institute on the right side of the compensating spool
The throttle orifice of compensating spool blind hole is stated, has the first of the connection compensating spool blind hole through-flow on the side wall of the compensating spool
Hole has on the side wall of the compensating spool to be connected to the throttling channel of first through flow hole and first hydraulic fluid port, described
Compensating spool blind hole limits compensated cavity with the first valve casing blind hole;
First spring, first spring are located in the compensating spool blind hole, and the left end of first spring is against described
The right end of the bottom of one valve casing blind hole and first spring against the bottom of the compensating spool blind hole, first spring to
The right side often pushes the compensating spool so that the right side of the compensating spool is against the left side of the baffle ring, at this point, the benefit
The periphery wall for repaying spool closes the first hydraulic fluid port described in second hydraulic fluid port and the throttling channel face;
Overflow spool, the overflow spool can be movably located in the second valve casing blind hole, and the overflow spool has
The glissile segment being slidably matched with the heavy caliber portion of the second valve casing blind hole and small-bore portion's phase with the second valve casing blind hole
Cooperation has the overflow spool of opening to the left to control the conical surface section of the runner and the 4th hydraulic fluid port break-make on the overflow spool
Blind hole has to be connected to the second through flow hole of the overflow spool blind hole and the 4th hydraulic fluid port on the side wall of the overflow spool;
There is the valve deck blind hole of opening to the right, the left end of the valve casing to be plugged on the right side of the valve deck blind hole for valve deck, the valve deck
To limit draining chamber in end;
Spring base, the spring base are located at the draining intracavitary, and described spring base one end offsets with the overflow spool;
Second spring, the second spring are located at the draining intracavitary, and the left end of the second spring is against the valve deck blind hole
Bottom and the second spring right end against the spring base the other end, the second spring often push to the right it is described overflow
Flow valve core is so that the overflow spool often closes the small-bore portion of the second valve casing blind hole.
2. plug-in pile-up valve according to claim 1, which is characterized in that further include end plug, the end plug is located at described
The left end of draining intracavitary and the end plug is stretched out to the left outside the valve deck, and the left end of the second spring is socketed in the end plug
On right end.
3. according to claim or the plug-in pile-up valve, which is characterized in that have in the spring base and to axially penetrate through
Third through flow hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832441.6A CN108691839A (en) | 2018-07-26 | 2018-07-26 | A kind of plug-in pile-up valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832441.6A CN108691839A (en) | 2018-07-26 | 2018-07-26 | A kind of plug-in pile-up valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108691839A true CN108691839A (en) | 2018-10-23 |
Family
ID=63850875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810832441.6A Withdrawn CN108691839A (en) | 2018-07-26 | 2018-07-26 | A kind of plug-in pile-up valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108691839A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778555A (en) * | 2019-10-31 | 2020-02-11 | 徐州阿马凯液压技术有限公司 | Embedded pressure compensation valve rod |
| CN114439800A (en) * | 2022-01-13 | 2022-05-06 | 涌镇液压机械（上海）有限公司 | Sliding cone shuttle valve restrictor |
-
2018
- 2018-07-26 CN CN201810832441.6A patent/CN108691839A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778555A (en) * | 2019-10-31 | 2020-02-11 | 徐州阿马凯液压技术有限公司 | Embedded pressure compensation valve rod |
| CN110778555B (en) * | 2019-10-31 | 2021-03-05 | 徐州阿马凯液压技术有限公司 | Embedded pressure compensation valve rod |
| CN114439800A (en) * | 2022-01-13 | 2022-05-06 | 涌镇液压机械（上海）有限公司 | Sliding cone shuttle valve restrictor |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181023 |