CN203500568U - Signal generation integrated valve block for wet spraying machine and hydraulic system - Google Patents
Signal generation integrated valve block for wet spraying machine and hydraulic system Download PDFInfo
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- CN203500568U CN203500568U CN201320558784.0U CN201320558784U CN203500568U CN 203500568 U CN203500568 U CN 203500568U CN 201320558784 U CN201320558784 U CN 201320558784U CN 203500568 U CN203500568 U CN 203500568U
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Abstract
The utility model relates to a signal generation integrated valve block for a wet spraying machine and a hydraulic system. The signal generation integrated valve block comprises a valve body, and a first differential pressure valve, a second differential pressure valve, a shuttle valve and a throttling valve which are arranged on the valve body, wherein the side face of the valve body is provided with a first oil inlet, a second oil inlet, a third oil inlet, a fourth oil inlet, a first oil outlet, a second oil outlet and a third oil outlet; signal oil ports at the two ends of the first differential pressure valve are communicated with the first oil inlet and the second oil inlet; the oil outlet of the first differential pressure valve is communicated with the first oil outlet; signal oil ports at the two ends of the second differential pressure valve are communicated with the third oil inlet and the fourth oil inlet; the oil outlet of the second differential pressure valve is communicated with the second oil outlet; two oil inlets of the shuttle valve and the throttling valve are connected between the oil outlet of the first differential pressure valve and the oil outlet of the second differential pressure valve; the oil outlet of the shuttle valve is communicated with the third oil outlet. According to the signal generation integrated valve block, automatic matching of the displacement of an oil pump with the actions of a pumping oil cylinder and a distribution oil cylinder can be realized, and the displacement of the oil pump can be adjusted automatically.
Description
Technical field
The utility model relates to engineering machinery field, relates in particular to a kind of wet sprayer signal generation integrated valve block and hydraulic system.
Background technique
Wet-spraying machine be a kind of can pump concrete and concrete is ejected into the mechanized equipment of working surface.The control mode of wet-spraying machine pumping system is generally divided into full hydraulic control and electric liquid mixes control, the working principle of its control system is to pumping control mechanism and distributing valve control mechanism by hydraulic-pressure pump (open type pump or enclosed pump) fuel feeding, and promote respectively pumping oil cylinder and distribute oil cylinder work, when oil cylinder runs to stroke end, by the commutation of pilot operated directional control valve or oil pump swash plate control valve, the to-and-fro motion that realizes pumping oil cylinder and distribute oil cylinder, a kind of electrical signal that is the position by induction cylinder movement produces by electric transducer (approach switch or position limit switch) of required commutation signal of oil cylinder when commutation provides, another kind is that the pressure oil signal (signal oil) producing while running to stroke end by oil cylinder provides.
Small-sized wet-spraying machine pumping control system, in order to reduce R&D costs, the single pump double-circuit system of general employing, be that dispensing loop and pumping loop share an oil pump, this system does not have accumulator, when pump displacement is smaller, distribute cylinder movement speed slow, can cause the phenomenons such as whole pumping system builds the pressure, impact, pumping discrete.For fear of the generation of the problems referred to above, just need a kind of controlling method, when distributing cylinder action, oily pump delivery increases sharply, and makes to distribute oil cylinder rapid movement.
In single pump double loop hydraulic system, for distributing valve is commutated fast, one of existing processing scheme is by controlling pump delivery solenoid valve, when distributing oil cylinder setting in motion, change the size of solenoid valve input current, improve the pilot pressure of oil pump, strengthen pump delivery, make to distribute cylinder movement speed to be accelerated, thereby distributing valve is commutated fast; Two of scheme is to keep oily pump delivery always maximum.
But the shortcoming of above two schemes is: be not suitable for colliery construction environment.Because whole system has been used solenoid valve, and while using in down-hole, automatical control system must be explosion-proof, and install flameproof apparatus additional, not only causes that car load space is nervous, mass penalty, and equipment cost also improves greatly simultaneously.By pump displacement, keep maximum mode to guarantee to distribute oil cylinder to commutate fast, neither constructability, also wastes energy simultaneously always.
Model utility content
The purpose of this utility model is to propose a kind of wet sprayer signal generation integrated valve block and hydraulic system, and it can be realized oil pump capacity and pumping oil cylinder, distribute the Auto-matching of cylinder action, can automatically regulate oily pump delivery.
For achieving the above object, the utility model provides following technological scheme:
A kind of wet sprayer signal generation integrated valve block, it comprises valve body (1) and is arranged on the first pressure difference valve (2), the second pressure difference valve (3), shuttle valve (4) and the throttle valve (5) on described valve body (1), wherein: the side of described valve body (1) is provided with the first filler opening (A1), the second filler opening (A2), the 3rd filler opening (B1) and the 4th filler opening (B2) and the first oil outlet (X1), the second oil outlet (X2) and the 3rd oil outlet (X3); The signal hydraulic fluid port at described the first pressure difference valve (2) two ends is connected with described the first filler opening (A1), the second filler opening (A2) respectively; The oil outlet of described the first pressure difference valve (2) is connected with described the first oil outlet (X1); The signal hydraulic fluid port at described the second pressure difference valve (3) two ends is connected with described the 3rd filler opening (B1), the 4th filler opening (B2) respectively; The oil outlet of described the second pressure difference valve (3) is connected with described the second oil outlet (X2); Two filler openings of described shuttle valve (4) and described throttle valve (5) are all connected between the oil outlet of described the first pressure difference valve (2) and the oil outlet of the second pressure difference valve (3); The oil outlet of described shuttle valve (4) is connected with described the 3rd oil outlet (X3).
Further, described the first filler opening (A1), the second filler opening (A2), the 3rd filler opening (B1), the 4th filler opening (B2) and shuttle valve (4) are all arranged on the leading flank of described valve body; Described the first pressure difference valve (2) and the second pressure difference valve (3) are all arranged on the upper side of described valve body (1); Described the first oil outlet (X1) and the 3rd oil outlet (X3) are all arranged on the right flank of described valve body (1); Described the second oil outlet (X2) is arranged on the left surface of described valve body (1).
The utility model also provides a kind of wet sprayer signal generation hydraulic system, and it comprises the wet sprayer signal generation integrated valve block in the various embodiments described above; Also comprise that fuel tank (6), oil pump (7), the first selector valve (8), the second selector valve (9), oil pump capacity switching valve (10), the first one-way valve (11), the second one-way valve (12), the first pumping oil cylinder (13), the second pumping oil cylinder (14), first distribute oil cylinder (15) and second to distribute oil cylinder (16), wherein: the first filler opening (A1) in described wet sprayer signal generation integrated valve block, the second filler opening (A2), the 3rd filler opening (B1) and the 4th filler opening (B2) are all connected with described the first pumping oil cylinder (13); The first oil outlet (X1) in described wet sprayer signal generation integrated valve block is connected with the rodless cavity of described the first pumping oil cylinder (13) and first actuator port (B3) of the first selector valve (8) by described the first one-way valve (11) simultaneously; The first oil outlet (X1) in described wet sprayer signal generation integrated valve block is connected to first control port (c) of described the second selector valve (9); The second oil outlet (X2) in described wet sprayer signal generation integrated valve block is connected with the rodless cavity of described the second pumping oil cylinder (14) and second actuator port (A3) of the first selector valve (8) by described the second one-way valve (12) simultaneously; The second oil outlet (X2) in described wet sprayer signal generation integrated valve block is connected to second control port (d) of described the second selector valve (9); The 3rd oil outlet (X3) in described wet sprayer signal generation integrated valve block is connected to the control port (Y) of described oil pump capacity switching valve (10); The rod chamber of described the first pumping oil cylinder (13) is connected with the rod chamber of described the second pumping oil cylinder (14); Described first distributes the rodless cavity and second of oil cylinder (15) to distribute the rodless cavity of oil cylinder (16) to be connected with two actuator ports of described the second selector valve (9) respectively; The rodless cavity of described the first distribution oil cylinder (15) is connected to second control port (b) of described the first selector valve (8); The rodless cavity of described the second distribution oil cylinder (16) is connected to first control port (a) of described the first selector valve (8); The outlet of described oil pump (7) is connected with the filler opening of the second selector valve (9) with described the first selector valve (8) simultaneously.
Further, the first filler opening (A1) in described wet sprayer signal generation integrated valve block is connected to the rod chamber of described the first pumping oil cylinder (13); The second filler opening (A2) in described wet sprayer signal generation integrated valve block, the 3rd filler opening (B1) and the 4th filler opening (B2) are all connected to the rodless cavity of described the first pumping oil cylinder (13).
Arbitrary technological scheme based in technique scheme, the utility model embodiment at least can produce following technique effect:
Due to the utility model integrated the hydraulic element such as pressure difference valve, shuttle valve and throttling arrangement, the pressure oil that pumping oil cylinder piston two ends are produced is converted to the discernible pressure signal of pilot operated directional control valve, control by pressure signal to displacement switching valve and distribution selector valve, realize the Auto-matching of oil pump capacity and pumping oil cylinder, distribution cylinder action, thereby reach automatic adjusting oil pump delivery to adapt to the effect of pumping control mechanism and distributing valve control mechanism, thereby make the all-hydraulic control of whole pumping system become possibility, meet colliery peace mark.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the principle schematic of wet sprayer signal generation integrated valve block in the utility model;
Fig. 2-4 are the three-face view of wet sprayer signal generation integrated valve block in the utility model;
Fig. 5 is the principle schematic of wet sprayer signal generation hydraulic system in the utility model.
Embodiment
For object, technological scheme and advantage that the utility model is implemented are clearer, below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, rather than whole embodiments.Below by the embodiment who is described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Embodiment based in the utility model; those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, and the scope that all belongs to the utility model protection is elaborated to embodiment of the present utility model below in conjunction with accompanying drawing.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as the restriction to the utility model protection domain.
As Figure 1-4, wet sprayer signal generation integrated valve block in the utility model comprises valve body 1 and is arranged on the first pressure difference valve 2, the second pressure difference valve 3, shuttle valve 4 and the throttle valve 5 on valve body 1, wherein: the side of valve body 1 is provided with the first filler opening A1, the second filler opening A2, the 3rd filler opening B1 and the 4th filler opening B2 and the first oil outlet X1, the second oil outlet X2 and the 3rd oil outlet X3.The utility model the is integrated hydraulic element such as pressure difference valve, shuttle valve and throttling arrangement, compact structure, simplification hydraulic pipe line layout.
The first filler opening A1 and the second filler opening A2, the 3rd filler opening B1 and the 4th filler opening B2 are respectively used to be connected the signal hydraulic fluid port of pumping oil cylinder.The first oil outlet X1 and the second oil outlet X2 are respectively used to be connected the actuator port of pumping oil cylinder.The 3rd oil outlet X3 is for being connected with the hydraulic fluid port of oil pump capacity switching valve 10.
The signal hydraulic fluid port at the first pressure difference valve 2 two ends is connected with the first filler opening A1, the second filler opening A2 respectively.The oil outlet of the first pressure difference valve 2 is connected with the first oil outlet X1.The signal hydraulic fluid port at the second pressure difference valve 3 two ends is connected with the 3rd filler opening B1, the 4th filler opening B2 respectively.The oil outlet of the second pressure difference valve 3 is connected with the second oil outlet X2.Two filler openings and the throttle valve 5 of shuttle valve 4 are all connected between the oil outlet of the first pressure difference valve 2 and the oil outlet of the second pressure difference valve 3.The oil outlet of shuttle valve 4 is connected with the 3rd oil outlet X3.
When piston movement is between the first filler opening A1 and the second filler opening A2 or between the 3rd filler opening B1 and the 4th filler opening B2 time, the first pressure difference valve 2 or the second pressure difference valve 3 are opened, from valve piece inner passage, the 3rd oil outlet X3 arrives oil pump capacity switching valve to pressure signal, make oil pump capacity switching valve in upper, external control signal oil n enters the control chamber of oil pump, make oily pump delivery maximum, now pumping oil cylinder stops, distribute oil cylinder with speed motion faster, when piston operates between the first filler opening A1 and the second filler opening A2, the 3rd oil outlet X3 does not have pressure oil, oil pump capacity switching valve is in the next, external control signal oil m enters the control chamber of oil pump, oil pump returns to default discharge capacity, the stop motion of distributing valve oil cylinder, pumping oil cylinder setting in motion.
In above-described embodiment, the first filler opening A1, the second filler opening A2, the 3rd filler opening B1, the 4th filler opening B2 and shuttle valve 4 are all arranged on the leading flank of valve body 1.The first pressure difference valve 2 and the second pressure difference valve 3 are all arranged on the upper side of described valve body.The first oil outlet X1 and the 3rd oil outlet X3 are all arranged on the right flank of valve body 1.The second oil outlet X2 is arranged on the left surface of valve body 1.
As shown in Figure 5, the utility model also provides a kind of wet sprayer signal generation hydraulic system, and it comprises wet sprayer signal generation integrated valve block and fuel tank 6, oil pump 7, the first selector valve 8, the second selector valve 9, oil pump capacity switching valve 10, the first one-way valve 11, the second one-way valve 12, the first pumping oil cylinder 13, the second pumping oil cylinder 14, the first distribution oil cylinder 15 and the second distribution oil cylinder 16 in the various embodiments described above.
Wherein: the first filler opening A1 in wet sprayer signal generation integrated valve block, the second filler opening A2, the 3rd filler opening B1 and the 4th filler opening B2 are all connected with the first pumping oil cylinder 13, and, the first filler opening A1, the second filler opening A2, the 3rd filler opening B1 and the position of the 4th filler opening B2 on the first pumping oil cylinder 13 are as shown in Figure 5, arrange successively from left to right, the first filler opening A1 is connected to the rod chamber of the first pumping oil cylinder 13.
The first oil outlet X1 in wet sprayer signal generation integrated valve block is connected with the rodless cavity of the first pumping oil cylinder 13 and the first actuator port B3 of the first selector valve 8 by the first one-way valve 11 simultaneously.The first oil outlet X1 in wet sprayer signal generation integrated valve block is connected to the first control port c of the second selector valve 9.The second oil outlet X2 in wet sprayer signal generation integrated valve block is connected with the rodless cavity of the second pumping oil cylinder 14 and the second actuator port A3 of the first selector valve 8 by the second one-way valve 12 simultaneously.The second oil outlet X2 in wet sprayer signal generation integrated valve block is connected to the second control port d of the second selector valve 9.The 3rd oil outlet X3 in wet sprayer signal generation integrated valve block is connected to the control port Y of oil pump capacity switching valve 10.
The rod chamber of the first pumping oil cylinder 13 is connected with the rod chamber of the second pumping oil cylinder 14.First distributes the rodless cavity and second of oil cylinder 15 to distribute the rodless cavity of oil cylinder 16 to be connected with two actuator ports of the second selector valve 9 respectively.The rodless cavity of the first distribution oil cylinder 15 is connected to the second control port b of the first selector valve 8.The rodless cavity of the second distribution oil cylinder 16 is connected to the first control port a of the first selector valve 8.The outlet of oil pump 7 is connected with the filler opening of the second selector valve 9 with the first selector valve 8 simultaneously.
In above-described embodiment, the first filler opening A1 in wet sprayer signal generation integrated valve block is connected to the rod chamber of the first pumping oil cylinder 13.The second filler opening A2 in wet sprayer signal generation integrated valve block, the 3rd filler opening B1 and the 4th filler opening B2 are all connected to the rodless cavity of the first pumping oil cylinder 13.
When oil pump 7 is started working, pressure oil enters the rodless cavity that the second selector valve 9 arrives the first distribution oil cylinder 15, the piston of the first distribution oil cylinder 15 is moved downward, until arrive stroke end (piston is just by the position of signal hydraulic fluid port), now on the first distribution oil cylinder 15, produce pressure signal, promote the first selector valve 8 in upper, pressure oil enters the rodless cavity of the second pumping oil cylinder 14 from the P mouth of the first selector valve 8, piston is moved right, and the piston that promotes the first pumping oil cylinder 13 is to left movement;
When the piston of the first pumping oil cylinder 13 is between the second filler opening A2 and the 4th filler opening B2 time, the second pressure difference valve 3 and the first pressure difference valve 2 are closed, signal oil flows out from the first oil outlet X1 through shuttle valve 4, through the first one-way valve 11, the first selector valve 8, get back to fuel tank 6, now oil pump capacity switching valve 10 pilot pressures are zero, under the effect of spring force in the next.
When the piston of the first pumping oil cylinder 13 runs between the 3rd filler opening B1 and the 4th filler opening B2 hydraulic fluid port, the second pressure difference valve 3 is opened, through the inner oil duct of the second pressure difference valve 3, from the second oil outlet X2, out promote the second selector valve 9 in upper, pressure signal enters oil pump capacity switching valve 10 and makes it in upper from the 3rd oil outlet X3 through shuttle valve 4 simultaneously, external control signal oil n enters the control chamber of oil pump 7, make its discharge capacity maximum, the pressure oil of large flow enters the rodless cavity of the second distribution oil cylinder 16 through the second selector valve 9, promoting its piston moves upward and sends signal until arrive stroke end (piston is just by the position of signal hydraulic fluid port), and promote the first selector valve 8 in the next, now system pressure oil enters the rodless cavity of the first pumping oil cylinder 13 through the first selector valve 8, promotion piston moves right.
When the piston of the first pumping oil cylinder 13 is between the 4th filler opening B2 and the 3rd filler opening A2 time, the second pressure difference valve 3 is closed, the signal oil of the second pressure difference valve 3 inside flows back to fuel tank 6 through shuttle valve 4, the second oil outlet X2, the second one-way valve 12, the first selector valve 8, oil pump capacity switching valve 10 control-oil pressures are zero, under the effect of spring force in the next, external pressure signal 1 enters oil pump 7, and oil pump 7 returns to the discharge capacity before distributing valve cylinder action.
When the piston movement of the first pumping oil cylinder 13 is to time between the second filler opening A2 and the first filler opening A1, the first pressure difference valve 2 is opened, pressure signal through the inner oil duct of the first pressure difference valve 2 from the first oil outlet X1 out and make oil pump capacity switching valve 10 in upper, the second selector valve 9 is in the next, now the discharge capacity of oil pump 7 is externally maximum under the control of control signal oil n, simultaneity factor pressure oil enters the rodless cavity of the first distribution oil cylinder 15 through the second selector valve 9, make the piston of the first distribution oil cylinder 15 move and send pressure signal until arrive stroke end (touching the cylinder bottom of the first distribution oil cylinder 15) downwards rapidly, and control the first selector valve 8 in upper.So just realized the reciprocating action of whole mechanism.
The pressure oil that the utility model is mainly used in pumping oil cylinder piston two ends to produce is converted to the discernible pressure signal of selector valve, control by pressure signal to oil pump capacity switching valve 10 and the second selector valve 9, realize the Auto-matching of oil pump capacity and pumping oil cylinder, distribution cylinder action, reach the effect of automatic adjusting oil pump delivery.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characteristics is equal to replacement embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope that the utility model asks for protection.
Claims (4)
1. a wet sprayer signal generation integrated valve block, is characterized in that:
Comprise valve body (1) and be arranged on the first pressure difference valve (2), the second pressure difference valve (3), shuttle valve (4) and the throttle valve (5) on described valve body (1), wherein:
The side of described valve body (1) is provided with the first filler opening (A1), the second filler opening (A2), the 3rd filler opening (B1) and the 4th filler opening (B2) and the first oil outlet (X1), the second oil outlet (X2) and the 3rd oil outlet (X3);
The signal hydraulic fluid port at described the first pressure difference valve (2) two ends is connected with described the first filler opening (A1), the second filler opening (A2) respectively;
The oil outlet of described the first pressure difference valve (2) is connected with described the first oil outlet (X1);
The signal hydraulic fluid port at described the second pressure difference valve (3) two ends is connected with described the 3rd filler opening (B1), the 4th filler opening (B2) respectively;
The oil outlet of described the second pressure difference valve (3) is connected with described the second oil outlet (X2);
Two filler openings of described shuttle valve (4) and described throttle valve (5) are all connected between the oil outlet of described the first pressure difference valve (2) and the oil outlet of the second pressure difference valve (3);
The oil outlet of described shuttle valve (4) is connected with described the 3rd oil outlet (X3).
2. wet sprayer signal generation integrated valve block as claimed in claim 1, is characterized in that:
Described the first filler opening (A1), the second filler opening (A2), the 3rd filler opening (B1), the 4th filler opening (B2) and shuttle valve (4) are all arranged on the leading flank of described valve body;
Described the first pressure difference valve (2) and the second pressure difference valve (3) are all arranged on the upper side of described valve body (1);
Described the first oil outlet (X1) and the 3rd oil outlet (X3) are all arranged on the right flank of described valve body (1);
Described the second oil outlet (X2) is arranged on the left surface of described valve body (1).
3. a wet sprayer signal generation hydraulic system, is characterized in that:
Comprise wet sprayer signal generation integrated valve block as claimed in claim 1 or 2;
Also comprise that fuel tank (6), oil pump (7), the first selector valve (8), the second selector valve (9), oil pump capacity switching valve (10), the first one-way valve (11), the second one-way valve (12), the first pumping oil cylinder (13), the second pumping oil cylinder (14), first distribute oil cylinder (15) and second to distribute oil cylinder (16), wherein:
The first filler opening (A1) in described wet sprayer signal generation integrated valve block, the second filler opening (A2), the 3rd filler opening (B1) and the 4th filler opening (B2) are all connected with described the first pumping oil cylinder (13);
The first oil outlet (X1) in described wet sprayer signal generation integrated valve block is connected with the rodless cavity of described the first pumping oil cylinder (13) and first actuator port (B3) of the first selector valve (8) by described the first one-way valve (11) simultaneously;
The first oil outlet (X1) in described wet sprayer signal generation integrated valve block is connected to first control port (c) of described the second selector valve (9);
The second oil outlet (X2) in described wet sprayer signal generation integrated valve block is connected with the rodless cavity of described the second pumping oil cylinder (14) and second actuator port (A3) of the first selector valve (8) by described the second one-way valve (12) simultaneously;
The second oil outlet (X2) in described wet sprayer signal generation integrated valve block is connected to second control port (d) of described the second selector valve (9);
The 3rd oil outlet (X3) in described wet sprayer signal generation integrated valve block is connected to the control port (Y) of described oil pump capacity switching valve (10);
The rod chamber of described the first pumping oil cylinder (13) is connected with the rod chamber of described the second pumping oil cylinder (14);
Described first distributes the rodless cavity and second of oil cylinder (15) to distribute the rodless cavity of oil cylinder (16) to be connected with two actuator ports of described the second selector valve (9) respectively;
The rodless cavity of described the first distribution oil cylinder (15) is connected to second control port (b) of described the first selector valve (8);
The rodless cavity of described the second distribution oil cylinder (16) is connected to first control port (a) of described the first selector valve (8);
The outlet of described oil pump (7) is connected with the filler opening of the second selector valve (9) with described the first selector valve (8) simultaneously.
4. wet sprayer signal generation hydraulic system as claimed in claim 3, is characterized in that:
The first filler opening (A1) in described wet sprayer signal generation integrated valve block is connected to the rod chamber of described the first pumping oil cylinder (13);
The second filler opening (A2) in described wet sprayer signal generation integrated valve block, the 3rd filler opening (B1) and the 4th filler opening (B2) are all connected to the rodless cavity of described the first pumping oil cylinder (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558784.0U CN203500568U (en) | 2013-09-10 | 2013-09-10 | Signal generation integrated valve block for wet spraying machine and hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558784.0U CN203500568U (en) | 2013-09-10 | 2013-09-10 | Signal generation integrated valve block for wet spraying machine and hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN203500568U true CN203500568U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320558784.0U Expired - Lifetime CN203500568U (en) | 2013-09-10 | 2013-09-10 | Signal generation integrated valve block for wet spraying machine and hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196786A (en) * | 2014-07-29 | 2014-12-10 | 徐州五洋科技股份有限公司 | Full-hydraulic control pumping hydraulic system used for wet spraying machine for mining |
| CN105134675A (en) * | 2015-08-28 | 2015-12-09 | 中国铁建重工集团有限公司 | Dual-power system of pumping mechanism of injection machine |
-
2013
- 2013-09-10 CN CN201320558784.0U patent/CN203500568U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196786A (en) * | 2014-07-29 | 2014-12-10 | 徐州五洋科技股份有限公司 | Full-hydraulic control pumping hydraulic system used for wet spraying machine for mining |
| CN104196786B (en) * | 2014-07-29 | 2017-06-20 | 徐州五洋科技股份有限公司 | A kind of all-hydraulic control hydraulic system of pump of mining wet sprayer |
| CN105134675A (en) * | 2015-08-28 | 2015-12-09 | 中国铁建重工集团有限公司 | Dual-power system of pumping mechanism of injection machine |
| CN105134675B (en) * | 2015-08-28 | 2017-06-16 | 中国铁建重工集团有限公司 | A kind of hybrid power system of spraying machine pumping mechanism |
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