CN205744659U - A kind of automatic diverter valve for controlling oil cylinder - Google Patents
A kind of automatic diverter valve for controlling oil cylinder Download PDFInfo
- Publication number
- CN205744659U CN205744659U CN201620615134.9U CN201620615134U CN205744659U CN 205744659 U CN205744659 U CN 205744659U CN 201620615134 U CN201620615134 U CN 201620615134U CN 205744659 U CN205744659 U CN 205744659U
- Authority
- CN
- China
- Prior art keywords
- overflow
- hydraulic fluid
- fluid port
- valve body
- check valve
- 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
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Abstract
This utility model provides a kind of automatic diverter valve for controlling oil cylinder, it is characterized in that: include check valve portion, reversal valve portion and overflow valve portion, described check valve portion includes check valve body, it is positioned at the nonreturn valve core at described check valve body two ends, it is arranged on the one-way piston between nonreturn valve core described in two, it is separately positioned on the unidirectional spring seat of described nonreturn valve core both sides, and is arranged on the unidirectional spring between described nonreturn valve core and described unidirectional spring seat；Offering the first hydraulic fluid port and the second hydraulic fluid port in described check valve body, described first hydraulic fluid port is connected with loading cylinders rodless cavity, and described second hydraulic fluid port is connected with load cylinder rod chamber.For automatically controlling oil cylinder commutation, beneficially operating personnel's operation, operating personnel's production operation efficiency is high, advantageously reduces operating cost, it is achieved automation mechanized operation.
Description
Technical field
This utility model relates to valve field, is specifically related to reversal valve.
Background technology
Reversal valve is to have two or more liquid form and the directional control valve of two or more hydraulic fluid port, is to realize hydraulic oil flow
Communication, cut off and commutate, and the valve that discharge degree and sequentially-operating control.And for controlling the commutation of oil cylinder on market
Valve is generally hand-operated direction valve, and hand-operated direction valve controls oil cylinder commutation and is difficult to operation.On market, reversal valve is used for controlling to plough plough
Oil cylinder commutates, and Non-follow control oil cylinder switch operation is complicated, is unfavorable for that operating personnel operates, and production operation efficiency is low, operating cost
High.
Therefore, how existing reversal valve is improved so that it is overcome the problems referred to above be those skilled in the art urgently
The problem solved.
Utility model content
Main purpose of the present utility model is to provide a kind of automatic diverter valve for controlling oil cylinder can realize ploughing plough
Oil cylinder automatic reverse.Reversal valve automatically controls oil cylinder commutation, beneficially operating personnel's operation, operating personnel's production operation efficiency
Height, advantageously reduces operating cost, it is achieved automation mechanized operation.
For reaching object above, the technical solution adopted in the utility model is: a kind of automatic reverse for controlling oil cylinder
Valve, it is characterised in that: include that check valve portion, reversal valve portion and overflow valve portion, described check valve portion include check valve body, be positioned at institute
State the nonreturn valve core at check valve body two ends, be arranged on the one-way piston between nonreturn valve core described in two, be separately positioned on described list
To the unidirectional spring seat of spool both sides, and it is arranged on the unidirectional spring between described nonreturn valve core and described unidirectional spring seat；
Offering the first hydraulic fluid port and the second hydraulic fluid port in described check valve body, described first hydraulic fluid port is connected with loading cylinders rodless cavity, described
Second hydraulic fluid port is connected with load cylinder rod chamber；Described reversal valve portion include commutate valve body, reversing valve core, be separately positioned on described in change
To the screw plug of spool both sides, and the commutation spring being arranged between described reversing valve core and described screw plug；Described commutation valve body
On offer oil-in and oil return opening, also have in described reversal valve body first annular runner, the second annular channel, the 3rd annular
Runner, the first control chamber, the second control chamber, the 3rd control chamber, first segment head piece and second section head piece；Described overflow valve portion includes
Overflow valve body, is arranged on the overflow spool on the left of described overflow valve body, is connected to the overflow piston on the right side of described overflow spool, if
Put the adjusting knob on the right side of described overflow piston, and be arranged on the overflow bullet between described overflow piston and described adjusting knob
Spring；Described second annular channel can connect with described second hydraulic fluid port, and described first annular runner can connect with described first hydraulic fluid port,
Described first controls chamber is connected with described oil return opening by described first segment head piece, and described second controls chamber by described second section
Head piece connects with described oil return opening.
Compared with prior art, the utility model has the advantage of: can realize automatically controlling oil cylinder by said structure
Commutation, beneficially operating personnel's operation, improves operating personnel's production operation efficiency high, advantageously reduces operating cost, it is achieved from
Dynamicization operates.
Accompanying drawing explanation
Fig. 1 is the cut-away view (uplink state) according to a preferred embodiment of the present utility model；
Fig. 2 is the cut-away view (downstream state) according to a preferred embodiment of the present utility model；
Fig. 3 is the cut-away view (pressure release state) according to a preferred embodiment of the present utility model；
Fig. 4 is the schematic diagram (uplink state) according to a preferred embodiment of the present utility model；
Fig. 5 is the schematic diagram (downstream state) according to a preferred embodiment of the present utility model.
Detailed description of the invention
Hereinafter describe and be used for disclosing this utility model so that those skilled in the art are capable of this utility model.Hereinafter retouch
Preferred embodiment in stating is only used as citing, it may occur to persons skilled in the art that other obvious modification.
As shown in Fig. 1～5, embodiment of the present utility model includes check valve portion 1, reversal valve portion 2 and overflow valve portion 3.Its
Concrete structure is as follows:
Check valve portion 1 includes check valve body 11, is positioned at the nonreturn valve core 12 at check valve body 11 two ends, is arranged on two check valves
One-way piston 13 between core 12, is separately positioned on the unidirectional spring seat 14 of nonreturn valve core 12 both sides, and is arranged on check valve
Unidirectional spring 15 between core 12 and unidirectional spring seat 14；The first hydraulic fluid port A and the second hydraulic fluid port B is offered in check valve body 11, the
One hydraulic fluid port A is connected with loading cylinders rodless cavity, and the second hydraulic fluid port B is connected with load cylinder rod chamber.
Reversal valve portion 2 includes the valve body 21 that commutates, reversing valve core 22, is separately positioned on the screw plug 23 of reversing valve core 22 both sides,
And the commutation spring 24 being arranged between reversing valve core 22 and screw plug 23；Oil inlet P and oil return is offered on commutation valve body 21
Mouthful T, also have in commutation valve body 21 first annular runner a, the second annular channel b, the 3rd annular channel c, first control chamber d,
Second controls chamber e, the 3rd control chamber f, first segment head piece g and second section head piece h.
Overflow valve portion 3 includes overflow valve body 31, is arranged on the overflow spool 32 on the left of overflow valve body 31, is connected to overflow valve
Overflow piston 33 on the right side of core 32, is arranged on the adjusting knob 34 on the right side of overflow piston 33, and is arranged on overflow piston 33 and adjusts
Overflow spring 35 between joint button 34.
Wherein, the second annular channel b can connect with the second hydraulic fluid port B, and first annular runner a can connect with the first hydraulic fluid port A, the
One controls chamber d is connected with oil return inlet T by first segment head piece g, and second controls chamber e by second section head piece h with oil return inlet T even
Logical.
Operation principle and the process of the present embodiment are as follows:
With reference to Fig. 1, Fig. 4, the up process of the present embodiment is as follows:
Hydraulic pump outlet high pressure fuel source is flowed through valve body first annular runner a, nonreturn valve core the 12, first hydraulic fluid port A by oil inlet P
Entering loading cylinders cavity of resorption, oil cylinder is the most up；Now reversing valve core 22 position as shown in Figure 1 is controlled by the spring 24 that commutates, when two
When side reversal valve spring 24 pre-compression force is equal, reversing valve core 22 keeps position as shown in Figure 1.
With reference to Fig. 2, Fig. 5, the descending process of the present embodiment is as follows:
When oil cylinder is up put in place after, at oil inlet P pressure rise, at oil inlet P unlifting pressure more than overflow valve 3 set pressure
During power, overflow valve 3 is opened；Oil inlet P controls chamber e connection through first annular runner a, the 3rd control chamber f and second, and second controls
Chamber e pressure raises, and promotes reversing valve core 22 to left movement, when controlling reversing valve core 2 and moving to overlap with screw plug 23, reversal valve
Core 22 motion puts in place position as shown in Figure 2, and now oil inlet P communicates through the second annular channel b and the second hydraulic fluid port B, high pressure fuel source
Entering load cylinder epicoele, control load cylinder descending, one-way piston 13 moves right simultaneously, opens the first hydraulic fluid port A check valve, load
Cylinder cavity of resorption fluid flows to oil return inlet T through the first hydraulic fluid port A, the second control chamber e and second section head piece h.
With reference to Fig. 3, the present embodiment pressure leak process is as follows:
When oil cylinder is descending put in place after, load cylinder cavity of resorption fluid through the first hydraulic fluid port A, second control chamber e and second section head piece h to
After oil return inlet T draining is complete, second controls chamber e control pressure drops to 0MPa, and now reversing valve core 22 is by moving from left to right, and this
Time second control right side reversal valve spring 24 in the e of chamber and be in complete relaxation state, when reversing valve core 22 moves to Fig. 3 position,
Oil inlet P controls chamber e through first annular runner a and second and is connected, and second controls chamber e through second section head piece h and oil return inlet T
Connection, oil-in pressure release.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Simply principle of the present utility model, on the premise of without departing from this utility model spirit and scope, this utility model also has respectively
Planting changes and improvements, these changes and improvements both fall within the range of claimed this utility model.This utility model requirement
Protection domain defined by appending claims and equivalent thereof.
Claims (1)
1. the automatic diverter valve being used for controlling oil cylinder, it is characterised in that: include check valve portion, reversal valve portion and overflow valve
Portion, described check valve portion includes check valve body, is positioned at the nonreturn valve core at described check valve body two ends, is arranged on check valve described in two
One-way piston between core, is separately positioned on the unidirectional spring seat of described nonreturn valve core both sides, and is arranged on described check valve
Unidirectional spring between core and described unidirectional spring seat；The first hydraulic fluid port and the second hydraulic fluid port is offered in described check valve body, described
First hydraulic fluid port is connected with loading cylinders rodless cavity, and described second hydraulic fluid port is connected with load cylinder rod chamber；
Described reversal valve portion includes the valve body that commutates, reversing valve core, is separately positioned on the screw plug of described reversing valve core both sides, Yi Jishe
Put the commutation spring between described reversing valve core and described screw plug；Oil-in and oil return opening is offered on described commutation valve body,
Also there is in described reversal valve body first annular runner, the second annular channel, the 3rd annular channel, the first control chamber, the second control
Chamber processed, the 3rd control chamber, first segment head piece and second section head piece；
Described overflow valve portion includes overflow valve body, is arranged on the overflow spool on the left of described overflow valve body, is connected to described overflow
Overflow piston on the right side of spool, is arranged on the adjusting knob on the right side of described overflow piston, and is arranged on described overflow piston and institute
State the overflow spring between adjusting knob；
Described second annular channel can connect with described second hydraulic fluid port, and described first annular runner can with described first hydraulic fluid port even
Logical, described first controls chamber connect with described oil return opening by described first segment head piece, and described second control chamber passes through described the
Two restrictions connect with described oil return opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620615134.9U CN205744659U (en) | 2016-06-16 | 2016-06-16 | A kind of automatic diverter valve for controlling oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620615134.9U CN205744659U (en) | 2016-06-16 | 2016-06-16 | A kind of automatic diverter valve for controlling oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744659U true CN205744659U (en) | 2016-11-30 |
Family
ID=57384186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620615134.9U Expired - Fee Related CN205744659U (en) | 2016-06-16 | 2016-06-16 | A kind of automatic diverter valve for controlling oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205744659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612700A (en) * | 2018-05-18 | 2018-10-02 | 宁波真格液压科技有限公司 | Plug-in overturns control valve |
-
2016
- 2016-06-16 CN CN201620615134.9U patent/CN205744659U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612700A (en) * | 2018-05-18 | 2018-10-02 | 宁波真格液压科技有限公司 | Plug-in overturns control valve |
| CN108612700B (en) * | 2018-05-18 | 2020-11-24 | 安徽仕烽油压科技有限公司 | Plug-in type turnover control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161130 Termination date: 20170616 |