CN102472299B - Valve Arrangement - Google Patents
Valve Arrangement Download PDFInfo
- Publication number
- CN102472299B CN102472299B CN201080033573.4A CN201080033573A CN102472299B CN 102472299 B CN102472299 B CN 102472299B CN 201080033573 A CN201080033573 A CN 201080033573A CN 102472299 B CN102472299 B CN 102472299B
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- Prior art keywords
- valve
- selector valve
- distributing
- control room
- main
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- 239000002828 fuel tank Substances 0.000 claims description 58
- 244000287680 Garcinia dulcis Species 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 description 20
- 230000006835 compression Effects 0.000 description 15
- 238000007906 compression Methods 0.000 description 15
- 238000004146 energy storage Methods 0.000 description 11
- 230000004907 flux Effects 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Driven Valves (AREA)
- Servomotors (AREA)
Abstract
The invention discloses a pilot-controlled valve having a main stage and a pilot stage. The main stage has a directional valve which is designed for example as a seat valve or slide valve. Such a directional valve has at least one control chamber which is connected via a directional valve of the pilot stage to a pressure source or a tank. To shorten the adjusting time of the directional valve of the main stage, at least one switching valve is arranged in parallel with the directional valve of the pilot stage. Said switching valve is extremely cheap and robust, has a short switching time and permits an increase in pressure medium throughput through the pilot stage.
Description
The present invention relates to a kind of valving with the valve of claim 1 pre-control as described in the preamble.
This valving is disclosed in DE 44 05 143 C2.It has as the main control valve of the sustainable adjustment of main and the Electromagnetically activated pre-control valve as preparation level.Main control valve is used for pilot pressure source, pressure medium between outlet and the load of oil hydraulic cylinder form is connected.The main control piston of main control valve can carry out controlling and having spring reset via two control rooms.Control room for adjusting main control piston is triggered by pre-control valve.Control room can be connected with outlet or pressure medium source via this pre-control valve.
If need the regulating time faster of the main control piston of main control valve, so it depends on the nominal size of pre-control valve to timing at pressure dependence substantially.The nominal size of pre-control valve is larger, so via the control room for triggering main control valve of pre-control valve pressure medium flow flux more greatly and regulating time is shorter thus.
Here shortcoming is, along with the raising of the nominal size of pre-control valve, too increases manufacture cost and manufactures expense.
Correspondingly, task of the present invention is to provide a kind of valve of dynamic pre-control with low cost.
This task is resolved by having the valving of feature described in claim 1.
By the present invention, the valve of the pre-control of valving has main and preparation level.At this, main have selector valve-such as seat valve-, this selector valve has at least one control room, and this control room or can export fuel tank in other words and is connected via selector valve and the pressure source of preparation level.The selector valve being parallel to preparation level arranges at least one distributing valve.
Described solution has the following advantages, and is namely how to arrange-to achieve pressure medium flow flux higher between at least one control room of main and fuel tank or pressure medium source by distributing valve-according to distributing valve.At this, even higher pressure medium flow flux and the shorter regulating time of main also can be realized when the nominal size of the selector valve preparing level is less.The selector valve with the preparation level of less nominal size has little manufacture cost, higher dynamic and very high serviceability.Because it is cheap especially that distributing valve is cost equally, thus by the valve of pre-control of the present invention total be that cost is cheap especially and durable.
In order to accurately trigger the selector valve of main, the selector valve of this main can be the selector valve that proportional reversing valve continues in other words.
In the preferred design proposal of valving, the control room of the selector valve of main can be connected with pressure source or fuel tank via the proportional reversing valve of preparation level, and is connected with fuel tank via at least one distributing valve and/or is connected with pressure source via at least one distributing valve.
In the design proposal very simple and with low cost of distributing valve, this distributing valve has input adapter and out splice going splice.At this, in the pre-tensioned locked position of coupler of spring, end the pressure medium between input adapter with out splice going splice be connected.In the open position, input adapter and out splice going splice be in pressure medium be connected among (can consider just to construct link position on the contrary).
In order to improve the pressure medium flow flux between the control room of the selector valve of main and fuel tank, in preparation level, multiple distributing valve can be set for being coupled together in control room and fuel tank.
In order to improve the pressure medium flow flux between the control room of the selector valve of main and pressure source further, multiple distributing valve can be set.
In another favourable design proposal of the present invention, distributing valve has two and enters joint and two discharge joints.In the pre-tensioned home position of spring, two enter joint and are connected with two discharge joints, and the corresponding joint that enters is connected with discharge joint in link position.Two flow paths between the control room of the selector valve of main and fuel tank or pressure medium source advantageously can extend through this distributing valve while the structure space demand of distributing valve is very little.
The selector valve of described main advantageously has two control rooms, can regulate main control piston pro rata via described control room about preparation level.Can via at least one first distributing valve corresponding control room and pressure source be carried out being connected simply and via at least one second distributing valve, it is connected with fuel tank in described selector valve.
Other favourable improvement project of the present invention is the theme of other dependent claims.
Preferred embodiment is explained in detail below according to schematic accompanying drawing.Accompanying drawing illustrates:
Fig. 1 is the hydraulic connecting figure of the valving had by the first embodiment;
Fig. 2 is the hydraulic connecting figure of the valving had by the second embodiment;
Fig. 3 is the hydraulic connecting figure of the valving had by the 3rd embodiment;
Fig. 4 is the hydraulic connecting figure of the valving had by the 4th embodiment; And
Fig. 5 is the hydraulic connecting figure of the valving had by the 5th embodiment.
Figure 1 illustrates by the hydraulic connecting figure with the valving of the valve of pre-control by the first embodiment of the present invention.This valve relates to 2/2 selector valve 1, this 2/2 selector valve for increasing and close the pressure medium of hydraulic energy storage device 2 in other words between pressure source and the load of oil hydraulic cylinder 4 form and be connected.Described selector valve 1 is used as main 6, and this main is by preparing level 8 pre-control.
Described hydraulic energy storage device 2 is connected via first working joint 12 of pressure piping 10 with the selector valve 1 of main 6.Second working joint 14 of selector valve 1 is connected to working line 16, and this working line is connected with the cylinder space 18 of oil hydraulic cylinder 4.Cylinder space 18 is separated with annular space 22 by the piston 20 guided in oil hydraulic cylinder 4, and this annular space is passed by the piston rod 24 be connected with piston 20.
In order to increase and the pressure medium of closing between hydraulic energy storage device 2 with oil hydraulic cylinder 4 is connected, described selector valve 1 has the level piston 28 of attaching troops to a unit in valve seat 26.The chain of command 30 deviating from valve seat 26 of level piston 28 limits control room 32, and this control room can be connected with pressure piping 10 via preparation level 8 and to be connected with hydraulic accumulator 2 or with fuel tank 34 thus.Arrange in control room 32 and close spring 36, this closedown spring is via the direction spring force load stage piston 28 of chain of command 30 along valve seat 26.Stroke measurment piston 38 for the stroke receiver 40 determining the stroke of grade piston 28 is supported on chain of command 30.
Described level piston 28 has the section 42 of radial indentation, and this section leans against on valve seat 26 under the closed condition of selector valve 1.By the section 42 of indentation, described level piston 28 has the ring surface 44 and end face 46 that deviate from chain of command 30.Under the closed condition of selector valve 1, ring surface 44 and working joint 12 be in pressure medium be connected among and be connected with pressure piping 10 pressure medium thus and end face 46 with working joint 14 and be connected with working line road 16 thus.
In order to be connected with preparation level 8, the control room 32 of selector valve 1 is connected to pilot line 48, this pilot line is connected with the working joint A of the selector valve 50 of preparation level 8.This selector valve 50 is proportional reversing valve 3/2 selector valves in other words also can considering servo or piezoelectric element-Electromagnetically activated via ratio magnet 52-.In addition, selector valve 50 has compression fittings P, and this compression fittings is among pressure medium is connected via connecting pipeline 54 and pressure piping 10.Selector valve 50 is connected on the fuel tank pipeline 56 be connected with fuel tank 34 via fuel tank connector T.The pre-control spool valve spring 57 of selector valve 50 is pre-tensioner in home position a, wherein compression fittings P be connected with working joint A-according to application, this home position a also can be configured on other position.Can move pre-control spool along the direction of working position b via ratio magnet 52, in the b of this working position, working joint A is connected with fuel tank connector T.Can pressure in the position of level piston 28 of adjustable change valve 1 and control room 32 by selector valve 50.
In the position shown in Figure 1 of selector valve 50, control room 32 and the hydraulic energy storage device 2 of the selector valve 1 of main 6 are among pressure medium is connected.In order to move the level piston 28 of selector valve 1 to opening direction, the pre-control spool of selector valve 50 moves via the direction of ratio magnet 52 towards working position b, is connected in the control room 32 of selector valve 1 thus and reduces the pressure in this control room 32 with fuel tank 34.If exceeded along the opening direction pressure be applied on the ring surface 44 of grade piston 28 and end face 46 and be applied to pressure on chain of command 30 and the spring force of closing spring 36, so level piston 28 has been mentioned from valve seat 26.
In order to reduce selector valve 1 in order to move the regulating time needed for grade piston 28 towards opening direction, be parallel to selector valve 50 and arrange two distributing valves 58,60 in preparation level 8, can increase via distributing valve and be closed in the control room 32 of selector valve 1 and be connected with the pressure medium between fuel tank 34.Described distributing valve 58,60 be can electromagnetism regulate 2/2 selector valve and there is the working joint A be connected with the pilot line 48 and fuel tank connector T be connected with fuel tank pipeline 56 respectively.Distributing valve 58 in other words 60 spool pre-tensioner in locked position of coupler x via valve spring 62, the pressure medium wherein separately between fuel tank connector T with working joint A is connected.Via Electromagnetically activated final controlling element 64 can by distributing valve 58 in other words 60 spool be transformed in open position y, wherein working joint 4 is connected with fuel tank connector T.
The working principle of selector valve 1 together with distributing valve 58,60 is explained below according to the first embodiment.
In order to open selector valve 1, control room 32 is connected with fuel tank 34 via preparation level 8.For this reason, multiple scheme is provided.If the longer regulating time of selector valve 1 is enough, so as explained above, the pre-control spool of selector valve 50 is only moved towards the direction of working position b.In order to shorten regulating time, extraly by distributing valve 58 in other words 60 spool be placed in open position y, thus quickly towards fuel tank 34 Unloading Control room 32.If should continue to shorten regulating time, so extraly the second distributing valve 58 60 is placed in open position y in other words.Thus, regulating time can be shortened by operating one or two distributing valves 58,60 extraly.By the discharge degree in control room, level piston 28 is via ring surface 44 towards opening direction motion, and this ring surface is by the pressure-loaded in hydraulic energy storage device 2.If reach the required of grade piston 28 to open 70% of stroke, be so transformed in locked position of coupler x by distributing valve 58 and 60, the selector valve 50 thus via preparation level 8 controls remaining stroke.The accurate location of the level piston 28 of selector valve 1 is only achieved with selector valve 50.
In order to close selector valve 1, be in home position a in other words in locked position of coupler x described selector valve 50 and distributing valve 58 and 60 no electric circuit.Then described control room 32 is connected with hydraulic energy storage device 2 by selector valve 50, thus, level piston 28 moves via chain of command 30 pressure that the pressure of hydraulic energy storage device 2 and the spring force of closing spring 36 to overcome on ring surface 44 and end face 46 effect along closing direction.
Such as when using oil hydraulic cylinder 4 to be sprayed in spray machine by spray medium, need the shorter regulating time of the level piston 28 of selector valve 1.For this reason, need via cylinder space 18 rapidly between the working line 16 that is connected with cylinder space 18 of the piston 20 of pressure-loaded oil hydraulic cylinder 4 and needs and the pressure piping 10 be connected with hydraulic energy storage device 2 fast pressure medium connect.
Fig. 2 illustrates the valving by the second embodiment with hydraulic connecting.With embodiment foregoing in Fig. 1 unlike, preparation level 8 has two extra distributing valves 66,68.Described distributing valve is used for the selector valve 1 of quick closedown main 6.Described distributing valve 66 and 68 has the working joint A that is connected with pilot line 48 respectively and is connected with connecting pipeline 54 and the compression fittings P be connected with pressure piping 10 thus.Described distributing valve 66 and 68 other design corresponding to the distributing valve 58 explained in FIG in other words 60 design.
Described level piston 28 is achieved compared with the first embodiment in Fig. 1 along the shorter regulating time of closing direction with described distributing valve 66,68.In order to move quickly in the direction of described level piston 28 to the valve seat 26 of selector valve 1, the selector valve 50 of distributing valve 58,60 and preparation level 8 is not energized and is energized to distributing valve 66, thus the selector valve 1 of main 6 control room 32 via distributing valve 66 and selector valve 50 and pressure piping 10 be in pressure medium be connected among and be among pressure medium is connected thus with hydraulic energy storage device 2.Thus achieve the higher discharge value of pressure medium from hydraulic energy storage device 2 traffic organising room 32, which reduce regulating time.In order to shorten regulating time further, except distributing valve 66, all right operation of selector valve 68, improves pressure medium flow flux thus further.
If the required final position or this grade of piston that reach grade piston 28 are positioned on valve seat 26, so interrupt the energising to distributing valve 66,68.
Can consider that in preparation level 8, be parallel to distributing valve 58,60 66,68 arranges other distributing valve in other words, thus reduce the regulating time of main 6 further.
Fig. 3 shows the hydraulic connecting figure of the valving by the 3rd embodiment.This is roughly corresponding to the first embodiment in Fig. 1, wherein replaces distributing valve 58,60 to be parallel to selector valve 50 and arrange single distributing valve 70 in preparation level.This distributing valve 70 has two working joint A1, A2 be connected with pilot line 48 to enter 4/2 selector valve that joint and two fuel tank connector T1, T2 be connected with fuel tank pipeline 56 discharge joint in other words in other words.The spool of distributing valve 70 is pre-tensioner in home position h via valve spring 72, and wherein two working joints A1, A2 and two fuel tank connectors T1, T2 are among pressure medium is connected.Spool can be transformed in open position i via Electromagnetically activated final controlling element 74, wherein working joint A1 and fuel tank connector T2 are among pressure medium is connected, and working joint A2 and fuel tank connector T1 are among pressure medium is connected.Thus, two pressure medium flow paths between pilot line 48 and fuel tank pipeline 56 extend through distributing valve 70.Via distributing valve 70 pressure medium flow flux such as can corresponding to two pressure medium volume flow flux of distributing valve in Fig. 1 58 and 60 and, wherein only need unique distributing valve 70 and such as can save structure space.
In order to reduce regulating time when the level piston 28 of reversing valve operated 1, except being transformed into the selector valve 50 in the b of working position, also the spool of distributing valve 70 is placed in open position i.In open position i, pilot line 48 to be on the other hand connected with fuel tank pipeline 56 by working joint A2 and fuel tank connector T1 by working joint A1 and fuel tank connector T2 via distributing valve 70 1 aspect, the control room 32 of selector valve 1 and fuel tank 34 is among pressure medium is connected thus.
The valving by the 4th embodiment is illustrated in the diagram with hydraulic connecting.This also has distributing valve 76 except the 3rd embodiment in Fig. 3, and this distributing valve is corresponding to distributing valve 70.Distributing valve 76 for reducing the level piston 28 of the selector valve 1 of main 6 along the regulating time of closing direction.Discharge joint in other words via two working joints A1, A2, described distributing valve is connected with pilot line 48, and enters joint in other words via two compression fittingss P1, P2 and to be connected with connecting pipeline 54 and to be connected with pressure piping 10 thus.The spool of described distributing valve 76 is pre-tensioner in home position k via valve spring 78, and wherein two working joints A1, A2 and two compression fittingss P1, P1 are interconnected.Can the spool of distributing valve 76 be transformed in open position l with Electromagnetically activated final controlling element 80, wherein working joint A1 and compression fittings P2 be in pressure medium be connected among and working joint A2 and compression fittings P1 are among pressure medium is connected, pressure piping 10 to be connected with pilot line 48 via connecting pipeline 54, compression fittings P1, P2 and working joint A1, A2 and to be connected with the control room 32 of selector valve 1 thus thus.
Selector valve 1 can be closed with shorter regulating time by extra distributing valve 76.Working principle is corresponding to the embodiment in Fig. 2.
Fig. 5 discloses the valving of the 5th embodiment with hydraulic connecting figure.At this, main 6 has 4/3 selector valve continuous print selector valve 82 in other words, and it has two control rooms 84,86 for carrying out pressure-loaded and movement to the main control piston of selector valve 82.Substitute 4/3 selector valve and such as also can use 2/2 or 3/2 selector valve.
Described control room 84,86 can be connected with fuel tank 34 or pressure medium source 88 respectively by preparation level 8.Preparation level 8 has such as also can consider 4/3 selector valve 94 that servo or piezoelectric element or linear motor-carry out regulate and four distributing valves be arranged in parallel with it 96,98,100,102 via ratio magnet 90,92-by electromagnetism constantly.Described selector valve 94 connects via compression fittings P and the pressure piping 104 that is connected with pressure medium source 88.Selector valve 94 is connected on the fuel tank pipeline 106 be connected with fuel tank 34 with fuel tank connector T.First working joint A of selector valve 94 is among pressure medium is connected via the first working line 108 and the control room 84 on the left side in Fig. 5 of selector valve 82, and the second working joint B is among pressure medium is connected via the second working line 110 and the control room 86 on the right.
The spool of the selector valve 94 of preparation level 8 can be centered in home position r via two valve springs 112,114, and can be moved to the direction of working position m by the energising of comparative example magnet 90, along this direction working joint A and fuel tank connector T be in pressure medium be connected among and working joint B and compression fittings P are among pressure medium is connected.On home position r, two working joints and fuel tank connector T are in during pressure medium is connected.The spool of selector valve 94 can be moved towards the direction of working position n via ratio magnet 92, wherein working joint A and compression fittings P be in pressure medium be connected among and working joint B and fuel tank connector T are among pressure medium is connected.Thus, in the m of working position, the control room 86 on the right in the drawings of the selector valve 82 of main 6 is connected with pressure source 88, and the control room 84 on the left side is connected with pressure medium source 88 in the n of working position.The control room 84 be not connected with pressure medium source 88 respectively in working position m with n of selector valve 94 86 to be just connected with fuel tank 34 in other words.
The selector valve 82 of main 6 has four joints in Figure 5, is not wherein explained in detail it.In selector valve 82 importantly, main control piston can be moved by distributing valve 96 to 102 with the regulating time shortened via control room 84,86.
The control room 86 on the right of the selector valve 82 of main 6 can be connected with fuel tank 34 or pressure medium source 88 with 102 with the distributing valve 100 be arranged in Figure 5 on the right of the selector valve 94 preparing level 8, and the control room 84 on the left side of selector valve 82 can be connected with pressure medium source 88 or fuel tank 34 with 98 with the distributing valve 96 being arranged in selector valve 94 left side.
Described distributing valve 96 to 102 is corresponding to the distributing valve in two the first embodiments in Fig. 1 and 2.Described distributing valve 100 to be connected with working line 110 via working joint A and to be connected with pressure piping 104 with compression fittings P.Via working joint A distributing valve 102 be connected with working line 110 equally and be connected with fuel tank pipeline 106 with fuel tank connector T.Thus, the control room 86 on the right of selector valve 82 can be connected with pressure medium source 88 thus and be connected with fuel tank 34 via distributing valve 102 via distributing valve 100.
Described distributing valve 98 to be connected with working line 108 via working joint A and to be connected with pressure medium source 88 via compression fittings P, and distributing valve 96 to be connected with working line 108 via working joint A and to be connected with fuel tank 34 with fuel tank connector T.Thus, the control room 84 on the left side of described selector valve 82 can be connected with pressure medium source 88 via distributing valve 98 thus and be connected with fuel tank 34 with distributing valve 96.
The main control piston of the selector valve 82 of main 6, via valve spring 116,118 pre-tensioner in locked position of coupler u, can move via the direction of control room 86 towards working position w and move via the direction of control room 84 towards working position v.At this, the shift motion of main control piston measured by stroke receiver 120.
In order to regulate the main valve of the selector valve 82 of main 6 to the direction of working position v, the control room 84 on the left side to be connected with pressure medium source 88 via the selector valve 94 of preparation level 8 and the control room 86 on the right is connected with fuel tank 34 in Figure 5, and wherein the pre-control spool of selector valve 94 moves to the direction of working position n.In order to shorten the regulating time of the main control piston of selector valve 82, on the one hand distributing valve 98 is energized, increases the control room 84 on the left side in Figure 5 thus and be connected with pressure medium further between pressure medium source 88 and via distributing valve 102, control room 86 be connected with fuel tank 34.If reach 70% of the required shift motion of main control piston, so distributing valve 98 and 102 is transformed in locked position of coupler x, as long as trigger described control room 84 and 86 via the selector valve 94 of preparation level 8 thus.Thus achieve the accurate location of the main control piston of selector valve 82.
In order to move the main control piston of selector valve 82 to the direction of working position w, correspondingly control room 86 to be connected with pressure source 88 via selector valve 94 and control room 84 is connected with fuel tank 34.In order to shorten regulating time, open distributing valve 96 and distributing valve 100.
Can consider in the 5 embodiment of figure 5 control room 84 in other words 86 and preparation level 8 in pressure medium source 88 or fuel tank 34 between arrange other distributing valve.Also the distributing valve as shown in the third and fourth embodiment in figures 3 and 4 can be used at this.
Distributing valve in Fig. 1 to 5 has conversion time short especially.In Fig. 3 and 4 distributing valve 70 in other words 76 final controlling element 74 and 80 be such as designed to 12 volts.Demonstrate in test, can with overvoltage-such as 24 volts-voltage be energized, advantageously further shorten the conversion time of distributing valve 70 and 76 thus.
The selector valve 50 and 94 of the preparation level 8 in Fig. 1 to 5 such as has nominal size 6.
Distributing valve 58,60 in Fig. 1,2 and 5; 66,68; 96,98,100,102 also 3/2 selector valve can be configured to.At this, working joint A can be connected with outlet and can be connected with pressure source in the second dislocation in the first dislocation.
Disclose the valve of the pre-control with main and preparation level.Main has the selector valve being such as configured to seat valve or spool.This selector valve has at least one control room, and this control room is connected with pressure source or fuel tank via the selector valve of preparation level.In order to shorten the regulating time of the selector valve of main, at least one distributing valve arranged by the selector valve being parallel to preparation level.Its cost is cheap especially and durable, has very short conversion time and achieves the raising of pressure medium flow flux by preparing level.
Reference numerals list
1 selector valve
2 hydraulic energy storage devices
4 oil hydraulic cylinders
6 mains
8 preparation levels
10 pressure pipings
12 working joints
14 working joints
16 working lines
18 cylinder spaces
20 pistons
22 annular spaces
24 piston rods
26 valve seats
28 grades of pistons
30 chains of command
32 control rooms
34 fuel tanks
36 close spring
38 stroke measurment pistons
40 stroke receivers
42 sections
44 ring surfaces
46 end faces
48 pilot line
50 selector valves
52 ratio magnets
54 connecting pipelines
56 fuel tank pipelines
58 distributing valves
60 distributing valves
62 valve springs
64 final controlling element
66 distributing valves
68 distributing valves
70 distributing valves
72 valve springs
74 final controlling element
76 distributing valves
78 valve springs
80 final controlling element
82 selector valves
84 control rooms
86 control rooms
88 pressure medium source
90 ratio magnets
92 ratio magnets
94 selector valves
96 distributing valves
98 distributing valves
100 distributing valves
102 distributing valves
104 pressure pipings
106 fuel tank pipelines
108 working lines
110 working lines
112 valve springs
114 valve springs
116 valve springs
118 valve springs
120 stroke receivers
P compression fittings
A, A1, A2 working joint
T, T1, T2 fuel tank connector
A, h, k, r home position
B, m, n, w, v working position
X, u locked position of coupler
Y, i, l open position
Claims (10)
1. have the valving of the valve of pre-control, this valve has main and preparation level (6,8), and wherein main (6) has with at least one control room (32; 84,86) selector valve (1; 82), this control room is via the selector valve (50 of preparation level (8); 94) with pressure source (2; 88) or outlet (34) connect, it is characterized in that, be parallel to preparation level (8) selector valve (50; 94) at least one distributing valve (58,60,66,68 is arranged; 70,76; 96,98,100,102).
2., by valving according to claim 1, wherein, the selector valve (50,94) of described preparation level (8) is proportional reversing valve.
3. by valving according to claim 2, wherein, the selector valve (1 of described main (6); 82) control room is via the selector valve (50 of preparation level (8); 94) with pressure source (2; 88) or outlet (34) connect and via distributing valve described at least one (58,60; 70; 96,102) be connected with outlet (34) and/or be connected with pressure source (2,88) via distributing valve described at least one (66,68,76,98,100).
4., by the valving according to any one of claims 1 to 3, wherein, described distributing valve (58,60,66,68,96,98,100,102) has input adapter and out splice going splice (A, T; P, A), wherein in the pre-tensioned locked position of coupler of spring, end input adapter and out splice going splice (A, T; P, A) between pressure medium connect, and wherein described input adapter and out splice going splice (A, T in the open position; P, A) be among pressure medium connection.
5. by the valving according to any one of claims 1 to 3, wherein, the selector valve (1) of described main (6) has control room (32), and this control room is connected with outlet (34) via two distributing valves (58,60).
6., by the valving according to any one of claims 1 to 3, wherein, the control room (32) of the selector valve (1) of described main (6) is connected with pressure source (2) via two distributing valves (66,68).
7. by the valving according to any one of Claim 1-3, wherein, described distributing valve (70,76) has two and enters joint and two discharge joints (A1, A2, P1, P2, T1, T2), wherein the pre-tensioned home position of spring (h, k) described in two enter joint (A1, A2; P1, P2) and two discharge joints (T1, T2; A1, A2) connect, and dislocation (i, l) in will enter respectively joint with discharge joint (A1, A2, P1, P2, T1, T2) be connected.
8. by valving according to claim 7, wherein, described distributing valve (70) to be connected with control room (32) via entering joint (A1, A2) and to be connected with fuel tank via discharging joint (T1, T2), and/or described distributing valve (76) to be connected with pressure source (2) via entering joint (P1, P2) and to be connected with control room (32) via discharging joint (A1, A2).
9. by the valving according to any one of claims 1 to 3, wherein, the selector valve (82) of described main (6) has two control rooms (84,86), can adjust main control piston pro rata via described control room through preparation level (8).
10. by valving according to claim 9, wherein, each control room (84,86) of the selector valve (82) of described main (6) to be connected with pressure source (88) via at least one first distributing valve (98,100) and to be connected with fuel tank via at least one second distributing valve (96,102).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009030888.1 | 2009-06-29 | ||
| DE102009030888A DE102009030888A1 (en) | 2009-06-29 | 2009-06-29 | valve assembly |
| PCT/EP2010/003851 WO2011000515A1 (en) | 2009-06-29 | 2010-06-29 | Valve arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102472299A CN102472299A (en) | 2012-05-23 |
| CN102472299B true CN102472299B (en) | 2015-07-08 |
Family
ID=42767971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080033573.4A Expired - Fee Related CN102472299B (en) | 2009-06-29 | 2010-06-29 | Valve Arrangement |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2449268B1 (en) |
| CN (1) | CN102472299B (en) |
| DE (1) | DE102009030888A1 (en) |
| WO (1) | WO2011000515A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012016838B4 (en) | 2012-08-27 | 2023-12-28 | Robert Bosch Gmbh | Hydraulic control circuit for a hydraulically operated casting unit |
| DE102012020066A1 (en) | 2012-10-12 | 2014-04-17 | Robert Bosch Gmbh | valve assembly |
| CN111550465B (en) * | 2020-05-15 | 2022-05-20 | 北京林克富华技术开发有限公司 | Control valve group |
| DE102022113397A1 (en) | 2022-05-27 | 2023-11-30 | Festo Se & Co. Kg | Controlling a volume flow of a fluid using a valve arrangement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3678090D1 (en) * | 1985-09-06 | 1991-04-18 | Hitachi Construction Machinery | HYDRAULIC PILOT CONTROL SYSTEM FOR THE USE OF DIRECTION VALVES. |
| EP0281635B1 (en) * | 1986-09-09 | 1991-02-27 | Hitachi Construction Machinery Co., Ltd. | Valve device |
| DE4405143C2 (en) | 1994-02-18 | 2002-03-14 | Bosch Gmbh Robert | Electro-hydraulic proportional directional valve |
| US6318234B1 (en) * | 2000-06-30 | 2001-11-20 | Caterpillar Inc. | Line vent arrangement for electro-hydraulic circuit |
| DE102004048689B3 (en) * | 2004-10-06 | 2005-10-20 | Siemens Ag | Two-stage servo valve |
| CN101203681A (en) * | 2005-03-31 | 2008-06-18 | 独立行政法人科学技术振兴机构 | Actuator using fluid cylinder and method of controlling the same |
-
2009
- 2009-06-29 DE DE102009030888A patent/DE102009030888A1/en not_active Withdrawn
-
2010
- 2010-06-29 EP EP10739848A patent/EP2449268B1/en not_active Not-in-force
- 2010-06-29 CN CN201080033573.4A patent/CN102472299B/en not_active Expired - Fee Related
- 2010-06-29 WO PCT/EP2010/003851 patent/WO2011000515A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009030888A1 (en) | 2010-12-30 |
| CN102472299A (en) | 2012-05-23 |
| EP2449268A1 (en) | 2012-05-09 |
| WO2011000515A1 (en) | 2011-01-06 |
| EP2449268B1 (en) | 2013-01-23 |
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