CN205331509U - A vehicle that is used for control valve of vehicle and has it - Google Patents
A vehicle that is used for control valve of vehicle and has it Download PDFInfo
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- CN205331509U CN205331509U CN201521137689.9U CN201521137689U CN205331509U CN 205331509 U CN205331509 U CN 205331509U CN 201521137689 U CN201521137689 U CN 201521137689U CN 205331509 U CN205331509 U CN 205331509U
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Abstract
The utility model discloses a vehicle that is used for control valve of vehicle and has it for the control valve of vehicle includes: the valve body has oil -feed port, left hydraulic fluid port, right hydraulic fluid port and the oil return opening crossed on, case, case between left position and right position movably cooperation in the case installation cavity, pressure equaliser, when the case was located left position, the oil -feed port crosses the hydraulic fluid port intercommunication with the right side and hydraulic fluid port and oil return opening intercommunication are crossed to a left side, and pressure equaliser is used for providing forward pressure to fluid in the direction of crossing the hydraulic fluid port from the oil -feed port right, and when the case was located right position, the oil -feed port crosses the hydraulic fluid port intercommunication with a left side and hydraulic fluid port and oil return opening intercommunication are crossed to the right side, and pressure equaliser is used for providing forward pressure to fluid in the direction of crossing the hydraulic fluid port from the oil -feed port left. According to the utility model discloses a reliability, reduction energy consumption have advantages such as control range is big, extensive applicability that is used for the control valve of vehicle can be convenient for control the actuating mechanism of vehicle, avoids the air pocket production, improves the vehicle.
Description
Technical field
This utility model relates to Vehicle Engineering, in particular to a kind of controlling valve and having the described vehicle controlling valve for vehicle for vehicle。
Background technology
The engineering trucks such as fork truck, its actuator (such as hydraulic cylinder or hydraulic motor) is driven by hydraulic system, hydraulic cylinder or hydraulic motor are connected in hydraulic system by controlling valve, when negative sense load is born in actuator, when control crank is to drive main valve plug, the output shaft of piston rod or motor is meeting action under the effect of load, and speed is uncontrolled, produce air pocket, affect the reliability of hydraulic system。For this, part controls valve and arranges throttling arrangement at oil return opening place, makes piston rod or hydraulic motor output shaft speed controlled, it is to avoid cavitation occurs in high pressure chest。But can only by the speed controlling of actuator in fixed value to ensure that hydraulic system has the energy saving that comparison is high, if when other speed, energy-saving and speed controllability cannot ensure。
Utility model content
This utility model is intended to solve one of above-mentioned technical problem of the prior art at least to a certain extent。For this, the utility model proposes a kind of control valve for vehicle, this control valve being used for vehicle has the advantages such as X。
This utility model also proposes a kind of vehicle with the described control valve for vehicle。
For achieving the above object, first aspect of the present utility model proposes a kind of control valve for vehicle, the described control valve for vehicle includes: valve body, there is in described valve body spool installation cavity, described valve body has the oil-feed port connected with described spool installation cavity, left hydraulic fluid port excessively, right hydraulic fluid port and oil return opening excessively；Spool, described spool coordinates movably in described spool installation cavity between left position with right position, when described spool is positioned at described left position, described oil-feed port connects with described right hydraulic fluid port excessively and described left hydraulic fluid port of crossing connects with described oil return opening, when described spool is positioned at described right position, described oil-feed port connects with described left hydraulic fluid port excessively and described right hydraulic fluid port of crossing connects with described oil return opening；Pressure equaliser, described pressure equaliser is located in described spool, when described spool is positioned at described left position, described pressure equaliser for providing positive pressure to fluid from described oil-feed port on the described right direction crossing hydraulic fluid port, when described spool is positioned at described right position, described pressure equaliser for providing positive pressure to fluid from described oil-feed port on the described left direction crossing hydraulic fluid port。
According to the control valve for vehicle of the present utility model, it is possible to be easy to control the actuator of vehicle, avoid air pocket generation, the reliability of raising vehicle, reduction energy consumption, there is the advantages such as range of accommodation is big, the suitability is wide。
It addition, can also have following additional technical characteristic according to the control valve for vehicle of the present utility model:
There is in described spool the left chamber separated between left and right and right chamber, when described spool is positioned at described left position, described left hydraulic fluid port of crossing is suitable to be connected with described oil return opening by described left chamber, when described spool is positioned at described right position, described right hydraulic fluid port of crossing is suitable to be connected with described oil return opening by described right chamber。
Described pressure equaliser includes left bascule and right bascule, described left bascule is located in described left chamber, described right bascule is located in described right chamber, when described spool is positioned at described left position, described left bascule is removable to connect or to block described left hydraulic fluid port and described oil return opening excessively in described left chamber, when described spool is positioned at described right position, described right bascule with connection or blocks described right hydraulic fluid port and described oil return opening excessively at described right chamber indoor movable。
Described left bascule includes left sub-spool, described left sub-spool for being divided into the first left connection chamber and the second left connection chamber by described left chamber, when described spool is positioned at described left position, described left hydraulic fluid port of crossing is suitable to be connected with described oil return opening by described first left connection chamber, described right hydraulic fluid port of crossing is suitable to connect with described second left connection chamber, when described spool is positioned at described right position, described left hydraulic fluid port of crossing is suitable to be connected with described oil-feed port by described first left connection chamber；Described right bascule includes right sub-spool, for being divided into by described right chamber, the first right connection chamber is right with second connects chamber to described right sub-spool, when described spool is positioned at described right position, described right hydraulic fluid port of crossing is suitable to be connected with described oil return opening by described first right connection chamber, described left hydraulic fluid port of crossing is suitable to connect with the described second right chamber that connects, when described spool is positioned at described left position, described right hydraulic fluid port of crossing is suitable to be connected with described oil-feed port by described first right connection chamber。
Described left bascule also includes left actuator, and described left actuator is connected between described left sub-spool and described left chamber to be moved to turning off the described left direction crossing hydraulic fluid port and described oil return opening by described left sub-spool；Described right bascule also includes right actuator, and described right actuator is connected between described right sub-spool and described right chamber to be moved to turning off the described right direction crossing hydraulic fluid port and described oil return opening by described right sub-spool。
Described spool be provided with the left signal hole connected with described second left connection chamber and with described second right connect chamber connection right signal hole, when described spool is positioned at described left position, described left signal hole connects with described oil-feed port, when described spool is positioned at described right position, described right signal hole connects with described oil-feed port。
Described left signal hole and described right signal hole described spool axially stagger and in the circumference of described spool relative, the internal perisporium of described spool installation cavity is provided with the oil groove connected with described oil-feed port, when described spool is positioned at described left position, described left signal hole connects with described oil groove, when described spool is positioned at described right position, described right signal hole connects with described oil groove。
Described spool is provided with the first left circumference hole and the first right circumference hole, and described first left connection chamber is connected with described left oil-through hole by described first left circumference hole, and described first right connection chamber is connected with described right oil-through hole by described first right circumference hole。
Described spool is provided with the second left circumference hole and the second right circumference hole, described spool is positioned at described left position and described left hydraulic fluid port of crossing when connecting with described oil return opening, described oil return opening is connected with described first left connection chamber by described second left circumference hole, described spool is positioned at described right position and described right hydraulic fluid port of crossing when connect with described oil return opening, and described oil return opening is connected with the described first right chamber that connects by described second right circumferential hole。
The outer peripheral face of described spool is provided with left feedback oil groove and right feedback oil groove, and described left feedback oil groove connects with described left oil-through hole and described first left circumference hole respectively, and described right feedback oil groove connects with described right oil-through hole and described first right circumference hole respectively。
The described right side of left sub-spool and the inner wall limit of described left chamber go out described first left connection chamber, described left sub-spool is provided with left circumferential slot, the inner wall limit of described left circumferential slot and described left chamber goes out described second left connection chamber, described right sub-spool is provided with right circumferential slot, the left side of described right sub-spool goes out the described first right chamber that connects with the inner wall limit of described right chamber, and described right circumferential slot goes out described second and right connects chamber with the inner wall limit of described right chamber。
The described left side of left sub-spool and the inner wall limit of described left chamber go out left actuator installation cavity, described left actuator is arranged in described left actuator installation cavity, the right side of described right sub-spool and the inner wall limit of described right chamber go out right actuator installation cavity, and described right actuator is arranged in described right actuator installation cavity。
Described spool is provided with the left drain tap connected with described left actuator installation cavity and the right drain tap connected with described right actuator installation cavity。
Described oil return opening includes left oil return opening and right oil return opening, described left oil return opening and described right oil return opening interval in the lateral direction are arranged, when described spool is positioned at described left position, described left hydraulic fluid port of crossing connects with described left oil return opening, when described spool is positioned at described right position, described right hydraulic fluid port of crossing connects with described right oil return opening。
Second aspect of the present utility model proposes a kind of vehicle, and described vehicle includes the control valve for vehicle according to first aspect of the present utility model。
According to vehicle of the present utility model, by utilizing the control valve for vehicle according to first aspect of the present utility model, there is the advantages such as energy-conserving and environment-protective, controllability are good, highly reliable。
Accompanying drawing explanation
Fig. 1 is the sectional view controlling valve for vehicle according to this utility model embodiment。
Fig. 2 is the sectional view of the valve body controlling valve for vehicle according to this utility model embodiment。
Fig. 3 is the sectional view of the spool controlling valve for vehicle according to this utility model embodiment and pressure equaliser。
Fig. 4 is the sectional view of the pressure equaliser controlling valve for vehicle according to this utility model embodiment。
Accompanying drawing labelling: for the control valve 1 of vehicle, valve body 100, spool installation cavity 110, oil-feed port 120, left hydraulic fluid port 130 excessively, right hydraulic fluid port 140 excessively, oil return opening 150, left oil return opening 151, right oil return opening 152, oil groove 160, control signal hole 171, left feedback signal hole 172, right feedback signal hole 173, spool 200, left chamber 210, first left connection chamber 211, second left connection chamber 212, left actuator installation cavity 213, right chamber 220, first right connection chamber 221, second right connection chamber 222, right actuator installation cavity 223, left signal hole 231, right signal hole 232, first left circumference hole 241, first right circumference hole 242, second left circumference hole 251, second right circumference hole 252, left feedback oil groove 261, right feedback oil groove 262, left drain tap 271, right drain tap 272, pressure equaliser 300, left bascule 310, left sub-spool 311, left circumferential slot 3110, left actuator 312, right bascule 320, right sub-spool 321, right actuator 322。
Detailed description of the invention
Being described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish。The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model。
Below with reference to the accompanying drawings the control valve 1 for vehicle according to this utility model embodiment is described。
As Figure 1-Figure 4, the control valve 1 for vehicle according to this utility model embodiment includes valve body 100, spool 200 and pressure equaliser 300。
There is in valve body 100 spool installation cavity 110, valve body 100 has the oil-feed port 120 connected with spool installation cavity 110, left hydraulic fluid port 130 excessively, right hydraulic fluid port 140 and oil return opening 150 excessively。Spool 200 coordinates movably in spool installation cavity 110 between left position with right position, when spool 200 is positioned at described left position, oil-feed port 120 connects with right hydraulic fluid port 140 excessively and left hydraulic fluid port 130 of crossing connects with oil return opening 150, when spool 200 is positioned at described right position, oil-feed port 120 connects with left hydraulic fluid port 130 excessively and right hydraulic fluid port 140 of crossing connects with oil return opening 150。Pressure equaliser 300 is located in spool 200, when spool 200 is positioned at described left position, pressure equaliser 300 for providing positive pressure to fluid on the direction crossing to the right hydraulic fluid port 140 from oil-feed port 120, when spool 200 is positioned at described right position, pressure equaliser 300 for providing positive pressure to fluid on the direction crossing hydraulic fluid port 130 from oil-feed port 120 to the left。
Below with reference to Fig. 1-Fig. 4, the work process controlling valve 1 for vehicle according to this utility model embodiment is described。
The actuator of described vehicle is connected in the hydraulic system of described vehicle by the valve 1 that controls for vehicle, wherein, oil-feed port 120 connects the oil pump of this hydraulic system, oil return opening 150 connects the oil back chamber of this hydraulic system, and two hydraulic fluid ports of this actuator cross hydraulic fluid port 130 with left respectively and right hydraulic fluid port 140 of crossing is connected。
When driving spool 200 to make spool 200 move to described left position, oil-feed port 120 connects with right hydraulic fluid port 140 excessively and left hydraulic fluid port 130 of crossing connects with oil return opening 150, the hydraulic oil making oil-feed port 120 place enters this actuator by right hydraulic fluid port 140 of crossing, drive this actuator campaign, and make the fluid in this actuator flow in oil return opening 150 by left hydraulic fluid port 130 of crossing, fluid is provided positive pressure by pressure equaliser 300 on the direction crossing to the right hydraulic fluid port 140 from oil-feed port 120 simultaneously, when driving spool 200 to make spool 200 move to described right position, oil-feed port 120 connects with left hydraulic fluid port 130 excessively and right hydraulic fluid port 140 of crossing connects with oil return opening 150, the hydraulic oil making oil-feed port 120 place enters this actuator by left hydraulic fluid port 130 of crossing, drive this actuator campaign, and make the fluid in this actuator flow in oil return opening 150 by right hydraulic fluid port 140 of crossing, realize the conversion that actuator inner fluid flows to, pressure equaliser 300 for providing positive pressure to fluid on the direction crossing hydraulic fluid port 130 from oil-feed port 120 to the left simultaneously。
The control valve 1 for vehicle according to this utility model embodiment, by arranging valve body 100 and spool 200, makes spool 200 coordinate movably in spool installation cavity 110。So the actuator of described vehicle can be crossed hydraulic fluid port 130 with left respectively and right hydraulic fluid port 140 of crossing is connected, when spool 200 is positioned at described left position, oil-feed port 120 connects with right hydraulic fluid port 140 excessively and left hydraulic fluid port 130 of crossing connects with oil return opening 150, the hydraulic oil making oil-feed port 120 place enters this actuator by right hydraulic fluid port 140 of crossing, drive this actuator campaign, and make the fluid in this actuator flow in oil return opening 150 by left hydraulic fluid port 130 of crossing, when spool 200 is positioned at described right position, oil-feed port 120 connects with left hydraulic fluid port 130 excessively and right hydraulic fluid port 140 of crossing connects with oil return opening 150, the hydraulic oil making oil-feed port 120 place enters this actuator by left hydraulic fluid port 130 of crossing, drive this actuator campaign, and make the fluid in this actuator be flowed in oil return opening 150 by right hydraulic fluid port 140 of crossing。Thus can being operated by spool 200, changing the location status of spool 200 to change the flow direction of the actuator inner fluid of described vehicle, thus changing the duty of this actuator, it is achieved the control to this actuator。
In addition, by arranging pressure equaliser 300, can when spool 200 be positioned at described left position, pressure equaliser 300 is utilized to provide positive pressure to fluid on the direction crossing to the right hydraulic fluid port 140 from oil-feed port 120, with ensure now in described actuator when bearing negative sense load, right hydraulic fluid port 140 place of crossing has pressure, the balance of guarantee system inner fluid pressure, when spool 200 is positioned at described right position, pressure equaliser 300 is utilized to provide positive pressure to fluid on the direction crossing hydraulic fluid port 130 from oil-feed port 120 to the left, with ensure now in described actuator when bearing negative sense load, left hydraulic fluid port 140 place of crossing has pressure, the balance of guarantee system inner fluid pressure。So when negative sense load is born in the actuator of described vehicle, it is possible to use the positive pressure that pressure equaliser 300 produces balances the negative sense load that this actuator is subject to, make piston rod or motor output shaft not easily because of the effect automatic moving of load or rotation。Due to time under pressure balance, the speed of actuator is controlled by by left hydraulic fluid port 130 excessively or the right uninterrupted crossing hydraulic fluid port 140, by balancing the negative sense load of actuator, can so that this actuator be controlled, the pressure in hydraulic oil region is made easily to be maintained at above in the scope of zero, thus avoiding producing air pocket。
And, owing to the valve 1 that controls for vehicle balances, by arranging pressure equaliser 300 in spool 200, the negative sense load that the actuator of described vehicle is subject to, compare the control valve that throttling arrangement is set in correlation technique at oil return opening place, controlling valve 1 can utilize pressure equaliser 300 to realize the dynamic equilibrium of hydraulic system, so that the execution device of described vehicle all can keep pressure balance when load is positioned at certain limit。So it is possible not only to the speed being easy to control the actuator of described vehicle, and hydraulic system can be made to be maintained at the duty of the best by the speed of this actuator of adjustment, to reduce the energy consumption of hydraulic system。
Therefore, can be easy to control the actuator of vehicle according to the control valve 1 being used for vehicle of this utility model embodiment, avoid air pocket generation, the reliability of raising vehicle, reduction energy consumption, there is the advantages such as range of accommodation is big, the suitability is wide。
Below with reference to the accompanying drawings the control valve 1 for vehicle according to this utility model specific embodiment is described。
Advantageously, as shown in Figure 1-Figure 3, there is in spool 200 left chamber 210 and right chamber 220 that separate between left and right, when spool 200 is positioned at described left position, left hydraulic fluid port 130 of crossing is suitable to be connected with oil return opening 150 by left chamber 210, when spool 200 is positioned at described right position, right hydraulic fluid port 140 of crossing is suitable to be connected with oil return opening 150 by right chamber 220。Thus it is possible not only to be easy to left hydraulic fluid port 130 of crossing and connects oil return opening 150, it is easy to right hydraulic fluid port 140 of crossing and connects oil return opening 150, and spool 200 can be facilitated the use and control whether left hydraulic fluid port 130 excessively connects with oil return opening 150 with right hydraulic fluid port 140 excessively, consequently facilitating the actuator of described vehicle is controlled。
Alternatively, as shown in Figure 1-Figure 3, pressure equaliser 300 includes left bascule 310 and right bascule 320, left bascule 310 is located in left chamber 210, right bascule 320 is located in right chamber 220, when spool 200 is positioned at described left position, left bascule 310 is removable to connect or to block left hydraulic fluid port 130 and oil return opening 150 excessively in left chamber 210, when spool 200 is positioned at described right position, right bascule 320 is removable to connect or to block right hydraulic fluid port 140 and oil return opening 150 excessively in right chamber 220。Thus it is possible not only to be utilized respectively left bascule 310 and hydraulic fluid port 130 crossed to the left by right bascule 320 and right hydraulic fluid port 140 of crossing provides positive pressure, and left bascule 310 can be utilized to control the left break-make crossing hydraulic fluid port 130 and oil return opening 150, right bascule 320 is utilized to control the right break-make crossing hydraulic fluid port 140 and oil return opening 150, such that it is able to be easy to further the actuator of described vehicle is controlled。
Specifically, as Figure 1-Figure 4, left bascule 310 includes left sub-spool 311, left sub-spool 311 for being divided into the first left connection chamber 211 and the second left connection chamber 212 by left chamber 210, when spool 200 is positioned at described left position, left hydraulic fluid port 130 of crossing is suitable to be connected with oil return opening 150 by the first left connection chamber 211, and right hydraulic fluid port 140 of crossing is suitable to connect with the second left connection chamber 212, when spool 200 is positioned at described right position, left hydraulic fluid port 130 of crossing is suitable to be connected with oil-feed port 120 by the first left connection chamber 211。Right bascule 320 includes right sub-spool 321, for being divided into by right chamber 220, the first right connection chamber 221 is right with second connects chamber 222 to right sub-spool 321, when spool 200 is positioned at described right position, right hydraulic fluid port 140 of crossing is suitable to be connected with oil return opening 150 by the first right connection chamber 221, left hydraulic fluid port 130 excessively is suitable to connect chamber 222 right with second and connects, when spool 200 is positioned at described left position, right hydraulic fluid port 140 of crossing is suitable to be connected with oil-feed port 120 by the first right connection chamber 221。Thus it is possible not only to be easy to left hydraulic fluid port 130 of crossing connected with oil return opening 150 by the first left connection chamber 211, it is easy to right hydraulic fluid port 140 of crossing connected with oil return opening 150 by the first right connection chamber 221, and can so that left bascule 310 is crossed to the right hydraulic fluid port 140 place and provided positive pressure, it is easy to right bascule 320 and offer positive pressure in hydraulic fluid port 130 place is provided to the left, thus realizing the balance of system pressure。
More specifically, as Figure 1-Figure 4, left bascule 310 also includes left actuator 312, and left actuator 312 is connected between left sub-spool 311 and left chamber 210 to be moved to turning off the left direction crossing hydraulic fluid port 130 and oil return opening 150 by left sub-spool 311。Right bascule 320 also includes right actuator 322, and right actuator 322 is connected between right sub-spool 321 and right chamber 220 to be moved to turning off the right direction crossing hydraulic fluid port 140 and oil return opening 150 by right sub-spool 321。
Left actuator 312 so can be utilized to drive left sub-spool 311, after the fluid making oil-feed port 120 place enters the second left connection chamber 212, the dynamic left sub-spool 311 of trying hard to recommend overcoming left actuator 312 is needed to move, left hydraulic fluid port 130 of crossing is made to connect with oil return opening 150, right actuator 322 is utilized to drive right sub-spool 321, after the fluid making oil-feed port 120 place enters the second right connection chamber 222, it is necessary to overcome the dynamic right sub-spool 321 of trying hard to recommend of right actuator 322 to move, right hydraulic fluid port 140 of crossing is made to connect with oil return opening 150。
What be thus possible not only to utilize left actuator 312 and right actuator 322 tries hard to recommend dynamic left sub-spool 311 and right sub-spool 321 to provide positive pressure, and can when left sub-spool 311 and right sub-spool 321 do not stress, left actuator 312 is utilized to drive left sub-spool 311, left sub-spool 311 is made to turn off left hydraulic fluid port 130 and oil return opening 150 excessively, right actuator 322 is utilized to drive right sub-spool 321, right sub-spool 321 is made to turn off right hydraulic fluid port 140 and oil return opening 150 excessively, thus when spool 200 is positioned at described left position, if the actuator of described vehicle is subject to negative sense load causes that right hydraulic fluid port 140 place pressure of crossing is zero, left sub-spool 311 can turn off left hydraulic fluid port 130 excessively and oil return opening 150, stop the fluid in this actuator and carry out oil return, when spool 200 is positioned at described right position, if the actuator of described vehicle is subject to negative sense load causes that left hydraulic fluid port 130 place pressure of crossing is zero, right sub-spool 321 can turn off right hydraulic fluid port 140 excessively and oil return opening 150, stop the fluid in this actuator and carry out oil return, ensure that actuator is subject to negative sense load when causing the positive pressure controlling in valve 1 less than or equal to zero, the speed of actuator is without out of control, improve the reliability controlling valve 1 further。
Specifically, left actuator 312 and right actuator 322 can be spring。
Fig. 1-Fig. 3 illustrates the control valve 1 for vehicle according to one concrete example of this utility model。As shown in Figure 1-Figure 3, spool 200 is provided with the left signal hole 231 connected with the second chamber, left connection chamber 212 and the right signal hole 232 that connect chamber 222 connection right with second, when spool 200 is positioned at described left position, left signal hole 231 connects with oil-feed port 120, when spool 200 is positioned at described right position, right signal hole 232 connects with oil-feed port 120。Thus can so that oil-feed port 120 connects with the second left connection chamber 212 and the second right chamber 222 that connects with described right position in described left position respectively, so that fluid enters connect chamber 222 right with second, the second left connection chamber 212 and promotes left sub-spool 311 and right sub-spool 321, thus being easy to further utilize control valve 1 that actuator is controlled。
Specifically, as shown in Figure 1-Figure 3, left signal hole 231 and hole, right signal hole 232 spool 200 axially stagger and in the circumference of spool 200 relative, the internal perisporium of spool 200 installation cavity is provided with the oil groove 160 connected with oil-feed port 120, when spool 200 is positioned at described left position, left signal hole 231 connects with oil groove 160, and when spool 200 is positioned at described right position, right signal hole 232 connects with oil groove 160。Oil groove 160 thus can be utilized to connect with left signal hole 231 and right signal hole 232 with described right position in described left position respectively, in order to the chamber 222 that connects right with second, the second left connection chamber 212 connects with oil-feed port 120。
Advantageously, as shown in Figure 1-Figure 3, spool 200 is provided with the first left circumference hole 241 and the first right circumference hole 242, and the first left connection chamber 211 is connected with left hydraulic fluid port 130 of crossing by the first left circumference hole 241, and the first right connection chamber 221 is connected with right hydraulic fluid port 140 of crossing by the first right circumference hole 242。Thus can so that connect chamber 221 right with first, the first left connection chamber 211 connects with left hydraulic fluid port 130 excessively and right hydraulic fluid port 140 of crossing respectively。
More advantageously, as shown in Figure 1-Figure 3, spool 200 is provided with the second left circumference hole 251 and the second right circumference hole 252, spool 200 is positioned at described left position and left hydraulic fluid port 130 of crossing when connecting with oil return opening 150, oil return opening 150 is connected with the first left connection chamber 211 by the second left circumference hole 251, spool 200 is positioned at described right position and right hydraulic fluid port 140 of crossing when connecting with oil return opening 150, and oil return opening 150 is connected by the second right circumference chamber 221 that connects right with first, hole 252。Thus can so that being respectively communicated with the first left connection chamber 211 and oil return opening 150 and first right to connect chamber 221 and oil return opening 150 when described left position is with described right position。
Specifically, the first left circumference hole 251, right circumference hole, left circumference hole 241, first 242, second and the second right circumference hole 252 are multiple and being provided at circumferentially spaced along spool 200。
Alternatively, as shown in Figure 1-Figure 3, the outer peripheral face of spool 200 is provided with left feedback oil groove 261 and right feedback oil groove 262, and left feedback oil groove 261 crosses hydraulic fluid port 130 with left respectively and the first left circumference hole 241 connects, and right feedback oil groove 262 crosses hydraulic fluid port 140 with right respectively and the first right circumference hole 242 connects。Left feedback oil groove 261 thus can be utilized to connect left hydraulic fluid port excessively 130 and the first left circumference hole 241, right feedback oil groove 262 is utilized to connect right hydraulic fluid port excessively 140 and the first right circumference hole 242, left hydraulic fluid port 130 circumference left with first hole 241 of crossing connects to make spool 200 all can ensure that within the scope of certain movement, it is ensured that right hydraulic fluid port 140 circumference right with first hole 242 of crossing connects。
Fig. 1-Fig. 4 illustrates the control valve 1 for vehicle according to one concrete example of this utility model。Shown in as shown in Figure 1, Figure 3 and Figure 4, the right side of left sub-spool 311 and the inner wall limit of left chamber 210 go out the first left connection chamber 211, left sub-spool 311 is provided with left circumferential slot 3110, the inner wall limit of left circumferential slot 3110 and left chamber 210 goes out the second left connection chamber 212, right sub-spool 321 is provided with right circumferential slot, the left side of right sub-spool 321 goes out the first right chamber 221 that connects with the inner wall limit of right chamber 220, and described right circumferential slot goes out second and right connects chamber 222 with the inner wall limit of right chamber 220。Thus can so that the 212, first right connection chamber 221 formation that connects chamber 222 right with second of the 211, second left connection chamber, the first left connection chamber。
Specifically, shown in as shown in Figure 1, Figure 3 and Figure 4, the left side of left sub-spool 311 and the inner wall limit of left chamber 210 go out left actuator installation cavity 213, left actuator 312 is arranged in left actuator installation cavity 213, the inner wall limit of the right side of right sub-spool 321 and right chamber 220 goes out right actuator installation cavity 223, and right actuator 322 is arranged in right actuator installation cavity 223。Thus can so that the installation of left actuator 312 and right actuator 322。
Specifically, shown in as shown in Figure 1, Figure 3 and Figure 4, the left side of left sub-spool 311 and the right side of right sub-spool 321 are respectively provided with actuator mounting groove, and left actuator 312 and right actuator 322 are fit partially within two described actuator mounting grooves respectively。
Advantageously, as shown in figures 1 and 3, spool 200 is provided with the left drain tap 271 connected with left actuator installation cavity 213 and the right drain tap 272 connected with right actuator 322 installation cavity。Left drain tap 271 and right drain tap 272 thus can be utilized to discharge the fluid in left actuator installation cavity 213 and right actuator installation cavity 223 respectively, thus preventing the fluid left sub-spool 311 of impact in left actuator installation cavity 213 and right actuator installation cavity 223 and right sub-spool 321 from normally moving。
Alternatively, as depicted in figs. 1 and 2, oil return opening 150 includes left oil return opening 151 and right oil return opening 152, left oil return opening 151 and right oil return opening 152 interval in the lateral direction are arranged, when spool 200 is positioned at described left position, left hydraulic fluid port 130 of crossing connects with left oil return opening 151, and when spool 200 is positioned at described right position, right hydraulic fluid port 140 of crossing connects with right oil return opening 152。Thus can shorten left oil return opening 151 and the left distance crossed between hydraulic fluid port 130, shorten right oil return opening 152 and the right distance crossed between hydraulic fluid port 140, consequently facilitating left oil return opening 151 is connected with left hydraulic fluid port 130 of crossing, it is simple to right oil return opening 152 is connected with right hydraulic fluid port 140 of crossing。
Fig. 1-Fig. 3 illustrates the control valve 1 for vehicle according to one concrete example of this utility model。As depicted in figs. 1 and 2, the internal perisporium of spool installation cavity 110 is provided with control signal hole 171, left feedback signal hole 172 and right feedback signal hole 173, and control signal hole 171, left feedback signal hole 172 and right feedback signal hole 173 can at valve body 100 ft connection。When spool 200 moves to centre position between described left position and described right position, oil-feed port 120 all disconnects to left hydraulic fluid port 130 excessively and right hydraulic fluid port 140 of crossing, left feedback oil groove 261 disconnects with left feedback signal hole 172, right feedback oil groove 262 disconnects with right feedback signal hole 173, left signal hole 231 and right signal hole 232 all communicate with oil groove 160, oil groove 160 is connected with described oil back chamber by control signal hole 171, and namely left signal hole 231 connects with described oil back chamber with right signal hole 232。When spool 200 is positioned at described left position, right feedback oil groove 262 is connected with right feedback signal hole 173, and when spool 200 is positioned at described right position, left feedback oil groove 261 is connected with left feedback signal hole 172。The fluid that thus can make left feedback oil groove 261 place feeds back to oil groove 160 by left feedback signal hole 172, the fluid making right feedback oil groove 262 place feeds back to oil groove 160 by right feedback signal hole 173, so that fluid feeds back to valve body 100 outside, and can so that fluid enters in oil groove 160。
The work process controlling valve 1 for vehicle according to this utility model specific embodiment is further described below with reference to Fig. 1-Fig. 4。
The actuator of described vehicle (such as, hydraulic cylinder or hydraulic motor) crosses hydraulic fluid port 130 with left respectively and right hydraulic fluid port 140 of crossing is connected, and oil-feed port 120 is connected with the fuel feeding oil pump of described vehicle, and oil return opening 150 is connected with the oil back chamber of described vehicle。
When spool 200 is in middle position, oil-feed port 120 all disconnects to left hydraulic fluid port 130 excessively and right hydraulic fluid port 140 of crossing, and the actuator being now connected with control valve 1 is in off position；Left feedback oil groove 261 disconnects with left feedback signal hole 172, right feedback oil groove 262 disconnects with right feedback signal hole 173, left signal hole 231 and right signal hole 232 all communicate with oil groove 160, oil groove 160 is communicated with oil return opening 150 by control signal hole 171, and namely left signal hole 231 is connected with right signal hole 232 and oil return opening 150。
When spool 200 moves to described left position, oil-feed port 120 connects to right hydraulic fluid port 140 of crossing, right feedback oil groove 262 connects with right feedback signal hole 173 simultaneously, and the fluid at right feedback oil groove 262 place feeds back to oil groove 160 by right feedback signal hole 173, and it is outside to feed back to valve body 100 further；Right signal hole 232 is closed simultaneously, left signal hole 231 connects with oil groove 160 always, namely the fluid of right hydraulic fluid port 140 excessively is by right feedback oil groove 262, right feedback signal hole 173, oil groove 160, left signal hole 231 enters the second left connection chamber 212, left hydraulic fluid port 130 pressure oil of crossing is by the first left circumference hole 241, first left connection chamber 211, second left circumference hole 251 is to left oil return opening 151, owing to left sub-spool 311 left side is connected with left actuator 312, therefore feed back to the fluid on the right side of left sub-spool 311 to match with the driving force of left actuator 312 left sub-spool 311 just can be made to be moved to the left, so that the first left circumference hole 241 and the second left circumference hole 251 are connected, complete the left oil return crossing hydraulic fluid port 130, due to coordinating of left sub-spool 311 and left actuator 312, therefore the right oil liquid pressure crossing hydraulic fluid port 140 is made to be not less than zero, without pressure, left sub-spool 311 will not move, it is left that hydraulic fluid port 130 can not oil return excessively；Now, owing to there are pressure, the left pressure F3 mechanical balance crossing the pressure F1 at hydraulic fluid port 130 place, load F2 and right hydraulic fluid port 140 place excessively, i.e. F1+F2=F3 in right hydraulic fluid port 140 place excessively always。Therefore, when the hydraulic cylinder being connected with control valve 1 or hydraulic motor are when stress balance, its speed is then controlled by the right uninterrupted crossing hydraulic fluid port 140 of input, so that piston rod or hydraulic motor output shaft speed are controlled。
When spool 200 moves to described right position, oil-feed port 120 connects to left hydraulic fluid port 130 of crossing, left feedback oil groove 261 connects with left feedback signal hole 172 simultaneously, and the fluid at left feedback oil groove 261 place feeds back to oil groove 160 by left feedback signal hole 172, and it is outside to feed back to valve body 100 further；Left signal hole 231 is closed simultaneously, right signal hole 232 connects with oil groove 160 always, namely the fluid of left hydraulic fluid port 130 excessively is by left feedback oil groove 261, left feedback signal hole 172, oil groove 160, right signal hole 232 enters the second right connection chamber 222, right hydraulic fluid port 140 pressure oil of crossing is by the first right circumference hole 242, first right connection chamber 221, second right circumference hole 252 is to right oil return opening 152, owing to right sub-spool 321 right side is connected with right actuator 322, therefore feed back to the fluid on the left of right sub-spool 321 to match with the driving force of right actuator 322 right sub-spool 321 just can be made to move right, so that the first right circumference hole 242 and the second right circumference hole 252 are connected, complete the right oil return crossing hydraulic fluid port 140, due to coordinating of right sub-spool 321 and right actuator 322, therefore the left oil liquid pressure crossing hydraulic fluid port 130 is made to be not less than zero, without pressure, right sub-spool 321 will not move, it is right that hydraulic fluid port 140 can not oil return excessively；Now, owing to there are pressure, the right pressure F6 mechanical balance crossing the pressure F4 at hydraulic fluid port 140 place, load F5 and left hydraulic fluid port 130 place excessively, i.e. F4+F5=F6 in left hydraulic fluid port 130 place excessively always。Therefore, when the hydraulic cylinder being connected with control valve 1 or hydraulic motor are when stress balance, its speed is then controlled by the left uninterrupted crossing hydraulic fluid port 130 of input, so that piston rod or hydraulic motor output shaft speed are controlled。
It will be appreciated by those skilled in the art that " left side " and " right side " mentioned above is only for the purposes of statement, and it is not limitation of the utility model, and " left side " and " right side " can be interchangeable according to practical situation。
Vehicle according to this utility model embodiment is described below。Vehicle according to this utility model embodiment includes the control valve 1 for vehicle according to this utility model above-described embodiment。
Vehicle according to this utility model embodiment, by utilize according to this utility model above-described embodiment for the control valve 1 of vehicle, there is the advantages such as energy-conserving and environment-protective, controllability are good, highly reliable。
Other compositions of vehicle according to this utility model embodiment and operation are all known for those of ordinary skills, are not detailed herein。
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model。
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic。Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature。In description of the present utility model, " multiple " are meant that at least two, for instance two, three etc., unless otherwise expressly limited specifically。
In this utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction。For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model as the case may be。
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact。And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature。Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature。
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment of the present utility model or example。In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example。And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner。Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art。
Although above it has been shown and described that embodiment of the present utility model, it is understandable that, above-described embodiment is illustrative of, it is not intended that to restriction of the present utility model, above-described embodiment can be changed in scope of the present utility model, revises, replace and modification by those of ordinary skill in the art。
Claims (15)
1. the control valve for vehicle, it is characterised in that including:
Valve body, has spool installation cavity in described valve body, described valve body has the oil-feed port connected with described spool installation cavity, left hydraulic fluid port excessively, right hydraulic fluid port and oil return opening excessively；
Spool, described spool coordinates movably in described spool installation cavity between left position with right position, when described spool is positioned at described left position, described oil-feed port connects with described right hydraulic fluid port excessively and described left hydraulic fluid port of crossing connects with described oil return opening, when described spool is positioned at described right position, described oil-feed port connects with described left hydraulic fluid port excessively and described right hydraulic fluid port of crossing connects with described oil return opening；
Pressure equaliser, described pressure equaliser is located in described spool, when described spool is positioned at described left position, described pressure equaliser for providing positive pressure to fluid from described oil-feed port on the described right direction crossing hydraulic fluid port, when described spool is positioned at described right position, described pressure equaliser for providing positive pressure to fluid from described oil-feed port on the described left direction crossing hydraulic fluid port。
2. the control valve for vehicle according to claim 1, it is characterised in that there is in described spool the left chamber separated between left and right and right chamber,
When described spool is positioned at described left position, described left hydraulic fluid port of crossing is suitable to be connected with described oil return opening by described left chamber,
When described spool is positioned at described right position, described right hydraulic fluid port of crossing is suitable to be connected with described oil return opening by described right chamber。
3. the control valve for vehicle according to claim 2, it is characterised in that described pressure equaliser includes left bascule and right bascule, and described left bascule is located in described left chamber, described right bascule is located in described right chamber,
When described spool is positioned at described left position, described left bascule is removable to connect or to block described left hydraulic fluid port and described oil return opening excessively in described left chamber,
When described spool is positioned at described right position, described right bascule with connection or blocks described right hydraulic fluid port and described oil return opening excessively at described right chamber indoor movable。
4. the control valve for vehicle according to claim 3, it is characterised in that
Described left bascule includes left sub-spool, described left sub-spool for being divided into the first left connection chamber and the second left connection chamber by described left chamber, when described spool is positioned at described left position, described left hydraulic fluid port of crossing is suitable to be connected with described oil return opening by described first left connection chamber, described right hydraulic fluid port of crossing is suitable to connect with described second left connection chamber, when described spool is positioned at described right position, described left hydraulic fluid port of crossing is suitable to be connected with described oil-feed port by described first left connection chamber；
Described right bascule includes right sub-spool, for being divided into by described right chamber, the first right connection chamber is right with second connects chamber to described right sub-spool, when described spool is positioned at described right position, described right hydraulic fluid port of crossing is suitable to be connected with described oil return opening by described first right connection chamber, described left hydraulic fluid port of crossing is suitable to connect with the described second right chamber that connects, when described spool is positioned at described left position, described right hydraulic fluid port of crossing is suitable to be connected with described oil-feed port by described first right connection chamber。
5. the control valve for vehicle according to claim 4, it is characterised in that
Described left bascule also includes left actuator, and described left actuator is connected between described left sub-spool and described left chamber to be moved to turning off the described left direction crossing hydraulic fluid port and described oil return opening by described left sub-spool；
Described right bascule also includes right actuator, and described right actuator is connected between described right sub-spool and described right chamber to be moved to turning off the described right direction crossing hydraulic fluid port and described oil return opening by described right sub-spool。
6. the control valve for vehicle according to claim 4, it is characterized in that, described spool be provided with the left signal hole connected with described second left connection chamber and with described second right connect chamber connection right signal hole, when described spool is positioned at described left position, described left signal hole connects with described oil-feed port, when described spool is positioned at described right position, described right signal hole connects with described oil-feed port。
7. the control valve for vehicle according to claim 6, it is characterized in that, described left signal hole and described right signal hole described spool axially stagger and in the circumference of described spool relative, the internal perisporium of described spool installation cavity is provided with the oil groove connected with described oil-feed port, when described spool is positioned at described left position, described left signal hole connects with described oil groove, and when described spool is positioned at described right position, described right signal hole connects with described oil groove。
8. the control valve for vehicle according to claim 4, it is characterised in that described spool is provided with the first left circumference hole and the first right circumference hole,
Described first left connection chamber is connected with described left oil-through hole by described first left circumference hole,
Described first right connection chamber is connected with described right oil-through hole by described first right circumference hole。
9. the control valve for vehicle according to claim 8, it is characterised in that described spool is provided with the second left circumference hole and the second right circumference hole,
Described spool is positioned at described left position and described left hydraulic fluid port of crossing when connect with described oil return opening, and described oil return opening is connected with described first left connection chamber by described second left circumferential hole,
Described spool is positioned at described right position and described right hydraulic fluid port of crossing when connect with described oil return opening, and described oil return opening is connected with the described first right chamber that connects by described second right circumferential hole。
10. the control valve for vehicle according to claim 8, it is characterized in that, the outer peripheral face of described spool is provided with left feedback oil groove and right feedback oil groove, described left feedback oil groove connects with described left oil-through hole and described first left circumference hole respectively, and described right feedback oil groove connects with described right oil-through hole and described first right circumference hole respectively。
11. the control valve for vehicle according to claim 5, it is characterised in that
The described right side of left sub-spool and the inner wall limit of described left chamber go out described first left connection chamber, and described left sub-spool is provided with the inner wall limit of left circumferential slot, described left circumferential slot and described left chamber and goes out described second left connection chamber,
Described right sub-spool is provided with right circumferential slot, and the left side of described right sub-spool goes out the described first right chamber that connects with the inner wall limit of described right chamber, and described right circumferential slot goes out described second and right connects chamber with the inner wall limit of described right chamber。
12. the control valve for vehicle according to claim 11, it is characterised in that
The described left side of left sub-spool and the inner wall limit of described left chamber go out left actuator installation cavity, and described left actuator is arranged in described left actuator installation cavity,
The right side of described right sub-spool and the inner wall limit of described right chamber go out right actuator installation cavity, and described right actuator is arranged in described right actuator installation cavity。
13. the control valve for vehicle according to claim 12, it is characterised in that described spool is provided with the left drain tap connected with described left actuator installation cavity and the right drain tap connected with described right actuator installation cavity。
14. the control valve for vehicle according to any one of claim 1-13, it is characterized in that, described oil return opening includes left oil return opening and right oil return opening, described left oil return opening and described right oil return opening interval in the lateral direction are arranged, when described spool is positioned at described left position, described left hydraulic fluid port of crossing connects with described left oil return opening, and when described spool is positioned at described right position, described right hydraulic fluid port of crossing connects with described right oil return opening。
15. a vehicle, it is characterised in that include the control valve for vehicle according to any one of claim 1-14。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137689.9U CN205331509U (en) | 2015-12-31 | 2015-12-31 | A vehicle that is used for control valve of vehicle and has it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137689.9U CN205331509U (en) | 2015-12-31 | 2015-12-31 | A vehicle that is used for control valve of vehicle and has it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331509U true CN205331509U (en) | 2016-06-22 |
Family
ID=56313952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521137689.9U Active CN205331509U (en) | 2015-12-31 | 2015-12-31 | A vehicle that is used for control valve of vehicle and has it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205331509U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825818A (en) * | 2018-08-27 | 2018-11-16 | 东莞海特帕沃液压科技有限公司 | A kind of anti-slip control valve for off roader |
| CN110332031A (en) * | 2019-08-06 | 2019-10-15 | 湖南机油泵股份有限公司 | A kind of regulating valve and rotor-type oil pump |
-
2015
- 2015-12-31 CN CN201521137689.9U patent/CN205331509U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825818A (en) * | 2018-08-27 | 2018-11-16 | 东莞海特帕沃液压科技有限公司 | A kind of anti-slip control valve for off roader |
| CN110332031A (en) * | 2019-08-06 | 2019-10-15 | 湖南机油泵股份有限公司 | A kind of regulating valve and rotor-type oil pump |
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