CN206830885U - Load with variable area pilot ratio keeps one-way valve connection - Google Patents

Load with variable area pilot ratio keeps one-way valve connection Download PDF

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Publication number
CN206830885U
CN206830885U CN201720556394.8U CN201720556394U CN206830885U CN 206830885 U CN206830885 U CN 206830885U CN 201720556394 U CN201720556394 U CN 201720556394U CN 206830885 U CN206830885 U CN 206830885U
Authority
CN
China
Prior art keywords
valve
banked
control valves
connection
load
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.)
Expired - Fee Related
Application number
CN201720556394.8U
Other languages
Chinese (zh)
Inventor
何清华
唐中勇
张大庆
刘昌盛
吴民旺
戴鹏
李赛白
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sunward Intelligent Equipment Co Ltd
Original Assignee
Sunward Intelligent Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sunward Intelligent Equipment Co Ltd filed Critical Sunward Intelligent Equipment Co Ltd
Priority to CN201720556394.8U priority Critical patent/CN206830885U/en
Application granted granted Critical
Publication of CN206830885U publication Critical patent/CN206830885U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of load with variable area pilot ratio keeps one-way valve connection,Load including variable area pilot ratio keeps check valve,Banked direction control valves joins,The load of the variable area pilot ratio keeps check valve to include valve casing,Valve element,The valve element upper end is provided with bulge loop,Center portion is provided with oilhole,Lower end is provided with the radial equipartition hole communicated with center portion oilhole and outer bevel sealing surface,The valve casing is provided with endoporus and forms sliding mechanical sealing with valve element upper end bulge loop,The banked direction control valves connection is provided with up big and down small endoporus,Big endoporus forms sliding mechanical sealing with the valve element,The outer bevel sealing surface of small interior bore ends and the valve element can form the conical surface seal of oil duct shut-off,The load of the variable area pilot ratio keeps the female coaxial that the valve casing of check valve is fixed on the banked direction control valves connection above by sealing ring sealing and the valve casing endoporus joins with the banked direction control valves,The utility model can change according to area pilot ratio was switched on or off oily passage,So as to control the utilization of energy.

Description

Load with variable area pilot ratio keeps one-way valve connection
Technical field
The hydraulic valve connection of engineering machinery and agricultural equipment equipment energy utilization is the utility model is related to, more particularly to is dug The load with variable area pilot ratio of pick machine equipment energy utilization keeps one-way valve connection.
Background technology
For environmental protection and energy saving, construction machinery industry main frame producer is all carrying out the energy regenerating research on utilization work of plant equipment Make, it is proposed that the method and principle that many energy regeneratings utilize, such as oil electric mixed dynamic mode, oil-liquid hybrid electric mode, by Key componentses dynamo battery price height in oil electric mixed dynamic mode, reliability are low and apply the product of this mode to save Effect is general and is abandoned by industry, at present industry research to focus on oil-liquid hybrid electric mode technical, in order to returning Energy after receipts is used, and common practice is that valve control connection is further added by outside original valve control system at present, and this mode technology is difficult To spend low, realize simple, but join because being further added by new valve and be attached with former valve control system, cost height, mounting arrangement space is big, and Poor real when newly-increased valve connection is associated in mutual switching with former control valve, machine operation impact is big, and operability is bad.
Utility model content
The utility model solve the deficiencies in the prior art and provided it is a kind of highly integrated with former valve control system, without pipeline Connection, cost is low, and fuel feeding switches real-time, no impact, and the easy to operate load with variable area pilot ratio keeps single Join to valve valve.
In order to solve the above problems, patent proposes a kind of load with variable area pilot ratio and keeps one-way valve Connection, including the load of variable area pilot ratio keep check valve and banked direction control valves connection, and the load of the variable area pilot ratio is kept Check valve includes valve casing and valve element, and the valve casing sealing is fixed on banked direction control valves connection, and the valve casing is provided with endoporus, on the valve casing It is additionally provided with the valve connected with endoporus and joins recover energy input oil port and control port, valve element upper end lateral wall is provided with convex Ring, the middle part of the valve element are provided with oil duct, and the bottom side of the wall of the valve element is provided with what the radial direction being connected with middle part oil duct was laid Multiple oilholes, the valve element lower end base lateral surface are sealing surface, and the upper end of the valve element is arranged in valve casing endoporus so that valve Join the input oil port that recovers energy to connect with valve element oil duct, and the bulge loop on the valve element is connected to form the first cunning with valve casing inwall Dynamic sealing face, the control port are connected with valve element bulge loop lower surface, and valve is provided with valve casing female coaxial in the banked direction control valves connection Core mounting hole, the banked direction control valves join inherent valve element mounting hole lower end and are coaxially provided with the banked direction control valves fuel feed hole being connected with working barrel, institute State valve element lower end outside wall to be slidably connected to form the second sliding sealing surface with valve element inner wall of the hole installing, be provided with the banked direction control valves connection The oil discharge passage being connected with executive component, the oil discharge passage installs hole exits with valve element and banked direction control valves fuel feed hole connects, described Valve element is provided with two working positions, in the valve element commutation of banked direction control valves connection, valve element sealed bottom face and the end of banked direction control valves fuel feed hole It is tightly connected, now the oilhole of valve element lower end connects with the oil discharge passage that banked direction control valves joins, and forms the first working position;Valve element is to moving up It is dynamic so that the oilhole of valve element lower end is sealed by valve element inner wall of the hole installing, and now banked direction control valves fuel feed hole joins fuel-displaced with banked direction control valves Passage connects, and forms the second working position.The present apparatus changes according to area pilot ratio was switched on or off oily passage, so as to control energy The utilization of amount.
The diameter of the banked direction control valves fuel feed hole is identical with valve element oil duct diameter.
Spring is coaxially installed between the valve element upper end and valve casing.So as to facilitate the return of valve element.
The valve casing surrounds to form the first energy input chamber with valve element upper end and bulge loop upper end, the executive component connection The second energy input chamber, the valve element bulge loop lower surface, valve element lateral surface and control port are formed between oil discharge passage and valve element Between form the 3rd energy input chamber, the banked direction control valves fuel feed hole and valve element sealed bottom face form the 4th energy input chamber, institute State the first energy input chamber and valve the connection input oil port that recovers energy to connect, the second energy input chamber joins fuel-displaced with banked direction control valves Passage connects, and the 3rd energy input chamber connects with control port, and the 4th energy input chamber connects with banked direction control valves fuel feed hole It is logical.
The beneficial effect that the utility model is brought:The utility model is few to former valve control connection element change, transfer portion structure Simply, it is and highly integrated with former valve control system, connected without pipeline, cost is low, and valve element has no pressure according to control port, respectively The second working position of the first working position and work oil pump feed of accumulator fuel feeding is operated in, thus fuel feeding switches real-time, nothing Impact, it is easy to operate.
Brief description of the drawings
Fig. 1 is the structural representation of the present apparatus.
Fig. 2 is the schematic diagram of the present apparatus.
Fig. 3 is the workflow diagram of the present apparatus.
In accompanying drawing, 1, the load of variable area pilot ratio keep check valve, 1A- valve casings, 1B- valve elements, 1C- springs, 1D- is close Seal;PL- recovers energy input oil port, PS- control ports, and 2, banked direction control valves connection.
Embodiment
The utility model is described in further details below with reference to the drawings and specific embodiments:
Referring to Fig. 1, Fig. 2, a kind of load with variable area pilot ratio keeps one-way valve connection can be directly to original Valve control system carries out function improvement, including the load of variable area pilot ratio keeps check valve 1, banked direction control valves connection 2 and is connected thereto Hydraulic fluid port oil duct, the load of variable area pilot ratio keeps check valve 1 to include valve casing 1A, valve element 1B, spring 1C and sealing ring 1D, Valve element 1B upper ends lateral wall is provided with bulge loop, and middle part is provided with oil duct, and the bottom side of the wall of the valve element 1B is provided with and middle part oil duct The multiple oilholes of radial equipartition of connection, lower end base are provided with outer bevel sealing surface, and valve casing 1A is fixed on more by sealing ring 1D sealings On road valve connection 2, endoporus is provided with inside valve casing 1A, the upper end of the valve element 1B is arranged in valve casing 1A endoporus, and passes through valve element Bulge loop on 1B lateral walls is slidingly sealed to be connected with valve casing 1A inwalls forms the first sliding sealing surface SLa, and banked direction control valves joins in 2 and valve Shell 1A female coaxials are provided with valve element mounting hole, are coaxially provided with valve element mounting hole lower end in the banked direction control valves connection 2 and connect with working barrel The banked direction control valves fuel feed hole connect, the valve element 1B lower end outsides wall is slidingly sealed with valve element inner wall of the hole installing is connected the slip of formation second Sealing surface SLb, the 2 interior oil discharge passage being connected with executive component of banked direction control valves connection and valve element installation hole exits and banked direction control valves oil-feed Hole connects, and the valve element 1B is provided with two working positions, and in the first working position, bevel sealing surface enters with banked direction control valves outside valve element 1B bottoms The end part seal of oilhole forms the conical surface seal SLc of shut-off oil duct, now the oilhole of valve element 1B lower ends and banked direction control valves join 2 it is fuel-displaced Passage is connected, and in the second working position, valve element 1B is moved up so that the oilhole of valve element mounting hole sealed valve core 1B lower ends, this When banked direction control valves fuel feed hole and banked direction control valves connection 2 oil discharge passage connect;
The load of variable area pilot ratio keeps valve casing 1A, valve element 1B upper ends and the first sliding sealing surface SLa of check valve 1 Form the first energy input chamber Va, the second sliding sealing surface SLb, the valve for loading holding check valve 1 of variable area pilot ratio Core 1B, conical surface seal SLc and banked direction control valves connection 2 form the second energy input chamber Vb and with the first energy input chamber Va normal opens, can The load of variable area pilot ratio keeps valve casing 1A, valve element 1B, the first sliding sealing surface SLa, the second sliding sealing surface of check valve 1 SLb forms the 3rd energy input chamber Vc, the load of variable area pilot ratio keep the valve element 1B of check valve 1, banked direction control valves connection 2 and Conical surface seal SLc forms the 4th energy input chamber Vd.
In the first energy input chamber Va input pressure oil, the load of variable area pilot ratio keeps the valve element 1B of check valve 1 Upper end forms downward force active area A1, the load of variable area pilot ratio when the 3rd energy input chamber Vc input controls are oily Keep foring upward power active area A2 under the valve element 1B bulge loops of check valve 1, in the 4th energy input chamber Vd input pressures oil When variable area pilot ratio load keep check valve 1 the valve element 1B conical surfaces form upward power active area A3.
The minimum pressure of first energy input chamber Va input oil is Pvamin, and the 4th energy input chamber Vd inputs the maximum of oil Pressure is Pvdmax, and power active area A1, A2, A3 also meets Pvamin*A1 > in addition to relational expression A1=A2+A3 is met Pvdmax*A3。
As described in Figure 3, the valve connection input oil port PL and control port PS that recovers energy passes through external control valve and accumulator Hydraulic fluid port connects, and valve joins the 4th energy input chamber Vd and passes through the external working barrel of banked direction control valves fuel feed hole, the load of variable area pilot ratio Keep the operation principle of check valve as follows:Load keeps check valve to have active area A1, A2, A3 of three power, in design, protects The product for demonstrate,proving minimum pressure Pvamin and A1 is more than maximum pressure Pvdmax and A3 product, as long as thus valve connection control port PS Pressure release is that the pressure that acts on A2 is zero, and when the operating pressure of external accumulator is more than Pvamin, the pressure of accumulator Oil is passed through valve and joins the input port PL that recovers energy, then valve connection the second energy input chamber Vb and the 4th energy input chamber Vd will be variable The load of area pilot ratio keeps the valve element 1B cut-offs of check valve;
When accumulator fuel feeding, the operating pressure of external accumulator is more than Pvamin, now accumulator and valve connection recovery energy Input oil port PL connections are measured, accumulator oil is from PL-Va-Vb to executive component driving load, when accumulator not fuel feeding, then accumulation of energy Device joins the input oil port PL disconnections that recover energy with valve, and now accumulator is connected with connection control port PS, and now work oil pump feed pressure The pressure that power need to only be more than the second energy input chamber Vb of valve connection may be such that the second energy input chamber Vb and the 4th energy input chamber Vd is connected, now by work oil pump feed, from Vd-Vb to executive component driving load.
Preferred embodiment of the present utility model is the foregoing is only, does not limit the utility model in any way, For those skilled in the art, the utility model can have various modifications and variations.It is all in spirit of the present utility model Within principle, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims (4)

1. a kind of load with variable area pilot ratio keeps one-way valve connection, including the load of variable area pilot ratio to keep Check valve (1) and banked direction control valves connection (2), it is characterised in that:The load of the variable area pilot ratio keeps check valve (1) to include valve Shell (1A) and valve element (1B), valve casing (1A) sealing are fixed on banked direction control valves connection (2), and the valve casing (1A) is provided with endoporus, institute State and the valve connection connected with endoporus is additionally provided with valve casing (1A) recovers energy input oil port (PL) and control port (PS), the valve element (1B) upper end lateral wall is provided with bulge loop, and the middle part of the valve element (1B) is provided with oil duct, in the bottom side of the wall of the valve element (1B) The multiple oilholes laid provided with the radial direction that is connected with middle part oil duct, valve element (1B) the lower end base lateral surface are sealing surface, institute The upper end for stating valve element (1B) is arranged in valve casing (1A) endoporus so that valve joins the input oil port (PL) that recovers energy and connected with valve element oil duct It is logical, and the bulge loop on the valve element (1B) is connected to form the first sliding sealing surface (SLa), the control port with valve casing inwall (PS) connected with valve element bulge loop lower surface, valve element mounting hole is provided with valve casing female coaxial in the banked direction control valves connection (2), it is described more Road valve joins is coaxially provided with the banked direction control valves fuel feed hole being connected with working barrel in valve element mounting hole lower end in (2), under the valve element (1B) End lateral wall is connected to form the second sliding sealing surface (SLb) with valve element inner wall of the hole installing, is provided with the banked direction control valves connection (2) with holding The oil discharge passage of units connection, the valve element (1B) are provided with two working positions, in the valve element commutation of banked direction control valves connection (2), valve Core (1B) sealed bottom face is connected with the end part seal of banked direction control valves fuel feed hole, and now the oilhole of valve element lower end goes out with what banked direction control valves joined Oily passage connection, forms the first working position;Valve element (1B) moves up so that the oilhole of valve element lower end passes through in valve element mounting hole Wall seals, and now banked direction control valves fuel feed hole connects with the oil discharge passage that banked direction control valves joins, and forms the second working position.
2. the load according to claim 1 with variable area pilot ratio keeps one-way valve connection, it is characterised in that:Institute The diameter for stating banked direction control valves fuel feed hole is identical with valve element oil duct diameter.
3. the load according to claim 2 with variable area pilot ratio keeps one-way valve connection, it is characterised in that:Institute State and spring (1C) is coaxially installed between valve element (1B) upper end and valve casing (1A).
4. the load with variable area pilot ratio according to one of claims 1 to 3 keeps one-way valve connection, its feature It is:The valve casing (1A) surrounds to form the first energy input chamber (Va), the execution with valve element (1B) upper end and bulge loop upper end The second energy input chamber (Vb), the valve element bulge loop lower surface, valve element are formed between the oil discharge passage and valve element of element connection The 3rd energy input chamber (Vc), the banked direction control valves fuel feed hole and valve element bottom are formed between (1B) lateral surface and control port (PS) Sealing surface forms the 4th energy input chamber (Vd), and the first energy input chamber joins the input oil port that recovers energy with valve and connected, institute State the second energy input chamber to connect with the oil discharge passage that banked direction control valves joins, the 3rd energy input chamber connects with control port, institute The 4th energy input chamber is stated to connect with banked direction control valves fuel feed hole.
CN201720556394.8U 2017-05-18 2017-05-18 Load with variable area pilot ratio keeps one-way valve connection Expired - Fee Related CN206830885U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720556394.8U CN206830885U (en) 2017-05-18 2017-05-18 Load with variable area pilot ratio keeps one-way valve connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720556394.8U CN206830885U (en) 2017-05-18 2017-05-18 Load with variable area pilot ratio keeps one-way valve connection

Publications (1)

Publication Number Publication Date
CN206830885U true CN206830885U (en) 2018-01-02

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Family Applications (1)

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CN201720556394.8U Expired - Fee Related CN206830885U (en) 2017-05-18 2017-05-18 Load with variable area pilot ratio keeps one-way valve connection

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106949263A (en) * 2017-05-18 2017-07-14 山河智能装备股份有限公司 Load with variable area pilot ratio keeps one-way valve connection and control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106949263A (en) * 2017-05-18 2017-07-14 山河智能装备股份有限公司 Load with variable area pilot ratio keeps one-way valve connection and control method

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180102

Termination date: 20200518