CN110431338A - Slide valve - Google Patents
Slide valve Download PDFInfo
- Publication number
- CN110431338A CN110431338A CN201880018877.XA CN201880018877A CN110431338A CN 110431338 A CN110431338 A CN 110431338A CN 201880018877 A CN201880018877 A CN 201880018877A CN 110431338 A CN110431338 A CN 110431338A
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- China
- Prior art keywords
- slide
- force section
- valve
- seat
- slide valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/363—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a piston
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Valve Housings (AREA)
- Sliding Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
There is provided a kind of assembling the excellent slide valve simply constructed.Slide valve (10) has: valve body (11), has the sliding valve hole (20) extended on axial direction (Dx)；Slide body (12) is configured in sliding valve hole (20) in a manner of it can slide on axial direction (Dx)；1st force section (13), the slide body (12) outstanding to the one end (P1) from valve body (11) exert a force to the 1st axial (Dx1)；And the 2nd force section (14), the slide body (12) outstanding to the other end (P2) from valve body (11) is to the 2nd axial (Dx2) force.1st force section (13) on radial direction (Dr) by across valve body (11) one end (P1) and both slide bodies (12) in a manner of configure.2nd force section (14) on radial direction (Dr) by across valve body (11) the other end (P2) and both slide bodies (12) in a manner of configure.
Description
Technical field
The present invention relates to a kind of slide valves.
Background technique
As to working oil from supply from hydraulic power source to hydraulic device and working oil control from the discharge of hydraulic device
Reversal valve, be widely used for slide valve.Slide valve makes the slide valve master and pushing slide body in the axial direction in valve body
Body is mobile, to switch flow passage structure, supplies working oil to hydraulic device, or working oil is discharged from hydraulic device, or keep being assigned
Give the hydraulic of hydraulic device.
Patent document 1 discloses a kind of reversal valve being made of slide valve.In the reversal valve, an end of slide body is surrounded
The spring housing in portion is installed on valve body, configured with the reset spring that hold by a pair of of holder in the spring housing.It is multiple
Position spring exerts a force to each holder in a manner of keeping the interval between holder widened in the axial direction.It is not applied in the axial direction in power
In the state of slide body, due to reset spring elastic force and slide body is configured at neutral position.On the other hand, if power exists
Slide body is applied in axial direction, then interval of the reset spring by compression and between holder is narrowed down, the axial position of slide body
It sets and is changed.The flowing of the working oil in reversal valve is controlled according to the axial position for the slide body being so changed.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 11-210899 bulletin
Summary of the invention
Problems to be solved by the invention
The reversal valve of above-mentioned patent document 1, which has to utilize, is configured to intracorporal a pair of of the holder of spring case and reset spring
The construction to exert a force to slide body and spring housing.It is predetermined therefore, it is necessary to which the pair of holder and reset spring to be configured at
Position is properly associated with respectively with spring housing and slide valve.In this way, the slide valve sliding equipment of the reversal valve of patent document 1 has
Complicated construction, components number is more, and assembling is poor.In addition, in the reversal valve of patent document 1, the end of reversal valve
Construction is different between both ends, therefore, it is impossible to make the generalization between both ends of the components such as spring housing.
It is further possible to constitute reversal valve using the slide valve with other constructions, but it is poor to construct complicated or assembling.
Especially, in the case where having the slide valve of the construction to exert a force using both ends of the spring to slide body, due to being set to two
The balance of active force between the spring of end and the neutral position of slide body is determined, but keep the elastic characteristic of each spring appropriate
Ground balance is not easy to.If each spring portion for being set to both ends does not have optimal elastic characteristic, slide body can not be made
It is precisely configured at neutral position, in addition, even if in the axial direction to slide body applied force, it also can not be steady by slide body
Surely it is configured at desired position.
The present invention is made into view of above-mentioned situation, and it is an object of the present invention to provide a kind of excellent simple construction of assembling
Slide valve.In addition, another object is that providing one kind can be such that slide body is precisely configured at using simple construction
The slide valve of neutral position.
The solution to the problem
A form of the invention is related to a kind of slide valve, which has: valve body, has the slide valve extended in the axial direction
Hole；Slide body is configured in sliding valve hole in a manner of it can slide in the axial direction；1st force section, to from valve body
The outstanding slide body of one end in the axial direction in slave one end side towards the other end side the 1st axial force distribution；And the 2nd
Force section, the slide body outstanding to the other end from valve body in the axial direction in from the other end side towards one end
2nd axial force distribution of side, the 1st force section with it is axially vertical radially with across valve body one end and slide body this two
The mode of person configures, the 2nd force section radially by across valve body the other end and both slide bodies in a manner of configure.
It is also possible to slide body and includes the 1st slide valve to take a seat portion, the end of one end side is arrived in setting；And the 2nd is sliding
Valve is taken a seat portion, and the end of the other end side is arrived in setting, and the 1st force section is seated at the slide valve outstanding from the one end of valve body
1st slide valve of main body is taken a seat portion, and the 2nd force section is seated at sliding from the 2nd of the outstanding slide body in the other end of valve body
Valve is taken a seat portion.
It is also possible to the 1st slide valve portion of taking a seat with the shape to the 1st axial depression, the 2nd slide valve portion of taking a seat has to the 2nd
The shape of axial depression, slide body limitation be seated in the 1st slide valve take a seat portion state the 1st force section shifting in the radial direction
It is dynamic, and limit be seated in the 2nd slide valve take a seat portion state the 2nd force section movement in the radial direction.
Be also possible to that the 1st slide valve takes a seat portion and the 2nd slide valve portion of taking a seat is respectively provided with inclined surface, the 1st force section be seated at from
1st slide valve of the outstanding slide body of the one end of valve body is taken a seat the inclined surface in portion, and the 2nd force section is seated at from valve body
The 2nd slide valve of the outstanding slide body in the other end take a seat the inclined surface in portion.
Be also possible to the 1st slide valve take a seat portion width radially it is smaller than the width radially of the 1st force section, the 2nd is sliding
Valve take a seat portion width radially it is smaller than the width radially of the 2nd force section.
It is also possible to valve body and includes the 1st main body to take a seat portion, one end is arrived in setting；And the 2nd main body take a seat portion,
It is arranged to the other end, in a period of slide body is pulled in from the one end of valve body, the 1st force section is seated at the 1st main body
It takes a seat portion, in a period of slide body is pulled in from the other end of valve body, the 2nd force section is seated at the 2nd main body and takes a seat portion.
It is also possible to the 1st main body portion of taking a seat with the shape to the 1st axial depression, the 2nd main body portion of taking a seat has to the 2nd
The shape of axial depression, valve body limitation be seated in the 1st main body take a seat portion state the 1st force section shifting in the radial direction
It is dynamic, and limit be seated in the 2nd main body take a seat portion state the 2nd force section movement in the radial direction.
It is also possible to that the 1st main body takes a seat portion and the 2nd main body portion of taking a seat is respectively provided with inclined surface, in slide body from valve master
In a period of the one end of body pulls in, the 1st force section is seated at the 1st main body and takes a seat the inclined surface in portion, in slide body from valve master
In a period of the other end of body pulls in, the 2nd force section is seated at the 2nd main body and takes a seat the inclined surface in portion.
Be also possible to slide valve to be also equipped with: the 1st port cover is installed on the one end of valve body, has and supply the 1st force section
1st space of configuration；And the 2nd port cover, be installed on the other end of valve body, have for the 2nd force section configuration the 2nd
Space.
It is also possible to the 1st force section and the 2nd force section is respectively provided with helical spring, is indicating the 1st space using φ A1
Size radially, the size radially that the 2nd space is indicated using φ A2, radially big for indicating using φ B sliding valve hole
The line width of the wire rod of helical spring small, that the 1st force section is indicated using d1 indicates the helical spring of the 2nd force section using d2
In the case where the line width of wire rod, meet φ B < φ A1 < φ B+2 × d1 and φ B < φ A2 < φ B+2 × d2.
It is also possible to meet φ B+d1≤φ A1 < φ B+2 × d1 and φ B+d2≤φ A2 < φ B+2 × d2.
Being also possible to the 1st port cover has the take a seat for the 1st force section the 1st to cover portion of taking a seat, and the 2nd port cover, which has, supplies the 2nd
The 2nd cover that force section is taken a seat is taken a seat portion.
It is also possible to the 1st cover portion of taking a seat with the shape to the 2nd axial depression, the 2nd cover portion of taking a seat has axial to the 1st
The shape of recess, the cover limitation of the 1st port have been seated in the 1st force section movement in the radial direction of the state that the 1st covers portion of taking a seat, the
The cover limitation of 2 ports has been seated in the 2nd force section movement in the radial direction of the state that the 2nd covers portion of taking a seat.
It is also possible in the case where slide body is outstanding from the one end of valve body, the 1st force section is in the 1st port
It is compressed between cover and slide body, also, the 2nd force section is covered in the 2nd port and compressed between valve body, in slide body
From the other end of valve body it is outstanding in the case where, the 1st force section is covered in the 1st port to be compressed between valve body, also,
2nd force section is covered in the 2nd port to be compressed between slide body.
It is also possible to the 1st pressure that the 1st port cover has the introducing port and outlet that constitute the pressure oil in the 1st space
Hydraulic fluid port, the 2nd port cover have the 2nd pressure oil port of the introducing port and outlet that constitute the pressure oil in the 2nd space, slide body
Pressure oil stress from the pressure oil and the 2nd space in the 1st space, slide body is relative to the position in the axial direction of valve body
It is changed according to the pressure of the pressure oil in the pressure of the pressure oil in the 1st space and the 2nd space.
The effect of invention
In accordance with the invention it is possible to provide a kind of assembling the excellent slide valve simply constructed.In addition, being also capable of providing one
Kind can utilize the simple slide valve for constructing and slide body being made precisely to be configured at neutral position.
Detailed description of the invention
Figure 1A is the skeleton diagram for indicating the cross section structure of slide valve of one embodiment of the present invention.
Figure 1B is the skeleton diagram for indicating the cross section structure of slide valve of one embodiment of the present invention.
Fig. 1 C is the skeleton diagram for indicating the cross section structure of slide valve of one embodiment of the present invention.
Fig. 2 is the figure for illustrating the inner wall relation of plane of the 1st force section, the 1st port cover and valve body, main to indicate
1st force section and the 1st port cover with axially vertical section (i.e. along radial section).
Fig. 3 A is the enlarged cross-sectional view that outlined a variation of valve body and slide body.
Fig. 3 B is the enlarged cross-sectional view that outlined a variation of valve body and slide body.
Fig. 3 C is the enlarged cross-sectional view that outlined a variation of valve body and slide body.
Fig. 4 A is the enlarged cross-sectional view that outlined a variation of the 1st port cover.
Fig. 4 B is the enlarged cross-sectional view that outlined a variation of the 1st port cover.
Fig. 5 is the enlarged cross-sectional view that outlined another variation of valve body and slide body, indicates slide body
It is configured at the state of neutral position.
Fig. 6 is the enlarged cross-sectional view that outlined another variation of the 1st port cover.
Fig. 7 is the cross-sectional view for indicating to apply an example of the slide valve of above-mentioned each embodiment and each variation.
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to one embodiment of the present invention.
Figure 1A~Fig. 1 C is the skeleton diagram for indicating the cross section structure of slide valve 10 of one embodiment of the present invention.Figure 1A is indicated
Slide body 12 is configured at the state of neutral position, and Figure 1B indicates that slide body 12 is configured at the state of the 1st activation point, Fig. 1 C
Indicate that slide body 12 is configured at the state of the 2nd activation point.
Slide valve 10 have valve body 11, slide body 12, the 1st force section 13, the 2nd force section 14, the 1st port cover 15 and
2nd port cover 16.
Valve body 11 has the sliding valve hole 20 extended on axial Dx.Slide body 12 on axial Dx can slide
Mode is configured in sliding valve hole 20.Although being formed with and hydraulic power source, hydraulic in Figure 1A~Fig. 1 C illustration omitted in valve body 11
Multiple flow paths that equipment and oil storage tank are respectively communicated with (referring to the appended drawing reference " 53 " of the Fig. 7 then discussed).It is being formed in valve
Configured with the multiple circular bead surfaces or multiple notch sections formed in slide body 12 between each flow path of main body 11, thus in valve body 11
Flow passage structure be determined.Thus, by the allocation position of spool control valve main body 12, the flow passage structure in valve body 11 is appropriate
Change supplies working oil from hydraulic power source to hydraulic device, or working oil is discharged from hydraulic device to oil storage tank.
1st force section 13 and the 2nd force section 14 are made of elastomer (in the present embodiment, being helical spring) respectively,
By compressive load.For typical case, helical spring is wound by the elongated linear material (i.e. wire rod) of section circle
Helical form and constitute.As shown in Figure 1B, the 1st force section 13 slide body 12 outstanding to the one end P1 from valve body 11
The 1st axial direction Dx1 of the slave one end side in Dx towards the other end side exerts a force in the axial direction.As shown in Figure 1 C, the 2nd force section 14 is right
The slide body 12 outstanding from the other end P2 of valve body 11 in the axial direction in Dx from the other end side towards one end side
The 2nd axial direction Dx2 force.In addition, the elastomer for constituting the 1st force section 13 and the 2nd force section 14 is not limited to helical spring,
It can will be used as the 1st force section 13 and the 2nd force section 14 to the arbitrary elastomer that slide body 12 properly exerts a force.Example
Such as, the 1st force section 13 and the 2nd force section 14 can also be made of elastomer (such as rectangular spring etc.), which is to pass through
By the wire rod (such as metal of the straight angle linear (Japanese: the straight angle is linear)) in the section with quadrangle, winding is spiral and constitutes
's.In this case, the 1st force section 13 and the 2nd force section 14 and slide body 12 and valve body 11 can be made steadily
Contact.
1st port cover 15 is installed on the one end P1 of valve body 11, has the 1st space S 1 for the configuration of the 1st force section 13.
2nd port cover 16 is installed on the other end P2 of valve body 11, has the 2nd space S 2 for the configuration of the 2nd force section 14.1st end
Mask 15 has the 1st pressure oil port 21 of the introducing port and outlet that constitute the pressure oil in the 1st space S 1.2nd port cover 16
The 2nd pressure oil port 22 with the introducing port and outlet for constituting the pressure oil in the 2nd space S 2.Pressure from guide's hydraulic power source
Power oil is imported via the 1st pressure oil port 21 to the 1st space S 1, in addition, importing via the 2nd pressure oil port 22 to the 2nd space S 2.Separately
Outside, the pressure oil that is ejected from the 1st space S 1 via the 1st pressure oil port 21 and from the 2nd space S 2 via 22 row of the 2nd pressure oil port
Pressure oil out is discharged to oil storage tank (not shown).
Slide body 12 is from the pressure oil stress (i.e. pilot pressure) in the pressure oil and the 2nd space S 2 in the 1st space S 1.
Slide body 12 relative to the opposite position on the axial Dx of valve body 11 according to the pressure of the pressure oil in the 1st space S 1 and
The pressure of pressure oil in 2nd space S 2 and change.The volume that can store pressure oil in 1st space S 1 and the 2nd space S 2
It is changed according to the configuration of slide body 12.For example, if pressure oil is imported to the 1st space S 1, slide body 12 is axial to the 1st
Dx1 is mobile, then slide body 12 enters the 2nd space S 2, and the volume that can store pressure oil of the 2nd space S 2 is reduced, and the 2nd is empty
Between the pressure oil of S2 be discharged via the 2nd pressure oil port 22.Similarly, if pressure oil imports and slide body to the 2nd space S 2
12 is mobile to the 2nd axial direction Dx2, then slide body 12 enters the 1st space S 1, the volume that can store pressure oil of the 1st space S 1
It is reduced, the pressure oil of the 1st space S 1 is discharged via the 1st pressure oil port 21.
1st force section 13 of present embodiment is on the radial Dr vertical with axial Dx with the one end P1 across valve body 11
It is configured with the mode of both slide bodies 12.In addition, the 2nd force section 14 is on radial Dr with the other end across valve body 11
The mode of 12 the two of P2 and slide body configures.In this way, projection and the 2nd force section 14 of the 1st force section 13 on axial direction Dx
Projection it is Chong Die with both the projection of the slide body 12 on axial Dx and the projection of valve body 11 respectively.
Slide body 12 there is the 1st slide valve of end of the setting to one end side to take a seat portion 31 and be arranged to the other end side
The 2nd slide valve of end take a seat portion 32.1st slide valve take a seat portion 31 radial Dr on width than the 1st force section 13 radial Dr
On width it is small, the width in addition, the 2nd slide valve is taken a seat on the radial Dr in portion 32 is than the width on the radial Dr of the 2nd force section 14
It is small.As shown in Figure 1B, the 1st force section 13 is directly seated at from the one end P1 of valve body 11 outstanding slide body 12
1 slide valve is taken a seat portion 31.In addition, as shown in Figure 1 C, the 2nd force section 14 is directly seated at prominent from the other end P2 of valve body 11
2nd slide valve of the slide body 12 come is taken a seat portion 32.
Valve body 11 have setting to one end P1 the 1st main body take a seat portion 33 and setting to the other end P2 the 2nd master
Body is taken a seat portion 34.As shown in Figure 1 C, in slide body 12 (especially the 1st slide valve take a seat portion 31) from the one end P1 of valve body 11
In a period of (especially the 1st main body take a seat portion 33) is pulled in the 1st axial direction Dx1, the 1st force section 13 is directly seated at the 1st main body
It takes a seat portion 33.In addition, as shown in Figure 1B, in slide body 12 (especially the 2nd slide valve take a seat portion 32) from the another of valve body 11
In a period of end P2 (especially the 2nd main body take a seat portion 34) is pulled in the 2nd axial direction Dx2, the 2nd force section 14 is directly seated at
2 main bodys are taken a seat portion 34.
1st port cover 15 has the take a seat for the 1st force section 13 the 1st to cover portion 35 of taking a seat, and the 2nd port cover 16, which has, supplies the 2nd
The 2nd cover that force section 14 is taken a seat is taken a seat portion 36.
In the slide valve 10 with above-mentioned structure, in the feelings that slide body 12 is outstanding from the one end P1 of valve body 11
Under condition (B referring to Fig.1), the 1st force section 13 is compressed between the 1st port cover 15 and slide body 12, also, the 2nd force section
14 are compressed between the 2nd port cover 16 and valve body 11.On the other hand, in slide body 12 from the other end of valve body 11
In P2 outstanding situation (C referring to Fig.1), the 1st force section 13 is compressed between the 1st port cover 15 and valve body 11, also,
It is compressed between the 2nd port cover 16 and slide body 12 2nd force section 14.
In addition, as shown in Figure 1B, utilize " Ls " indicate in slide body 12 in slide body 12 from the one of valve body 11
The part (i.e. the 1st slide valve take a seat portion 31) taken a seat in the case that end P1 is outstanding for the 1st force section 13 in slide body 12
From the part that the other end P2 of valve body 11 takes a seat in the case where outstanding for the 2nd force section 14, (i.e. the 2nd slide valve is taken a seat portion
32) distance on axial Dx between.In addition, utilize " Lb " indicate in valve body 11 in slide body 12 from valve body 11
Part that one end P1 takes a seat in a period of pulling in for the 1st force section 13 (i.e. the 1st main body take a seat portion 33) in slide body 12
The part (i.e. the 2nd main body take a seat portion 34) taken a seat in a period of being pulled in from the other end P2 of valve body 11 for the 2nd force section 14
Between axial Dx on distance.In this case, the 1st slide valve takes a seat portion 31 and the 2nd slide valve is taken a seat the distance between portion 32 Ls
Portion 33 is taken a seat with the 1st main body and the 2nd main body the distance between portion 34 Lb that takes a seat is set to identical size.In addition, so-called herein
" Ls be identical size with Lb " is also to be included in exist between Ls and Lb other than comprising Ls and Lb completely the same situation
Slightly difference the case where concept.In view of the function and effect of the slide valve 10 of present embodiment, as long as being for example configured at neutral position
Slide body 12 can be contacted respectively with the 1st force section 13 and the 2nd force section 14, even if between Ls and Lb exist it is slightly poor
It is different, substantially alternatively at " Ls be identical size with Lb ".In addition, in the case where there is slightly difference between Ls and Lb,
Both can be big with Ls ratio Lb, it can also be big with Lb ratio Ls.
In neutral position shown in figure 1A, the 1st main body portion 33 of taking a seat is formed by face and the 1st slide valve is taken a seat 31, portion shape
At face be present on the same plane extended along radial Dr, in addition, the 2nd main body is taken a seat, portion 34 is formed by face and the 2nd sliding
Valve take a seat portion 32 be formed by face be present in along radial Dr extend same plane on.Thus, it is configured in slide body 12
In the case where neutral position, the 1st force section 13 and the 1st main body take a seat portion 33 and the 1st slide valve is taken a seat, and portion 31 is contacted, in addition, the 2nd
Force section 14 and the 2nd main body take a seat portion 34 and the 2nd slide valve is taken a seat, and portion 32 contacts.In addition, as long as one of slide body 12 is held
Portion is prominent from the one end P1 of valve body 11, another end of slide body 12 is just configured in sliding valve hole 20, as long as slide valve
Another end of main body 12 is prominent from the other end P2 of valve body 11, and an end of slide body 12 is just configured at slide valve
In hole 20.
Fig. 2 is the figure for the relationship for illustrating the inner wall 41 of the 1st force section 13, the 1st port cover 15 and valve body 11,
The main section vertical with axial Dx for indicating the 1st force section 13 and the 1st port cover 15 (i.e. along the section of radial Dr).Only supply
With reference to, in Fig. 2 using parantheses indicate with the 2nd force section 14 and the 2nd port cover 16 related corresponding elements.
It utilizes " φ A1 " to indicate the size of radial Dr of the 1st space S 1 determined by the inner wall of the 1st port cover 15, utilizes
" φ A2 " indicates the size of the radial Dr of the 2nd space S 2 determined by the inner wall of the 2nd port cover 16.In addition, utilizing " φ B " table
The size for showing the radial Dr of the sliding valve hole 20 determined by the inner wall 41 of valve body 11, utilizes " d1 " to indicate the 1st force section 13
The line width of the wire rod of helical spring utilizes " d2 " to indicate the line width of wire rod of the helical spring of the 2nd force section 14.In the situation
Under, the slide valve 10 of present embodiment meets relational expression 1 and relational expression 2 below.
[relational expression 1] φ B < φ A1 < φ B+2 × d1
[relational expression 2] φ B < φ A2 < φ B+2 × d2
Moreover, the slide valve 10 of present embodiment meets relational expression 3 and relational expression 4 below.
[relational expression 3] φ B+d1≤φ A1 < φ B+2 × d1
[relational expression 4] φ B+d2≤φ A2 < φ B+2 × d2
In addition, the internal diameter in the section of the annulus shape along radial Dr of the 1st force section 13 of " φ d1i " expression is utilized, and
And the outer diameter in the section of the annulus shape along radial Dr of the 1st force section 13 of " φ d1o " expression is utilized, utilize " φ d2i " table
Show the internal diameter in the section of the annulus shape along radial Dr of the 2nd force section 14, also, " φ d2o " is utilized to indicate the 2nd force section
The outer diameter in the section of 14 annulus shape along radial Dr.In this case, the slide valve 10 of present embodiment meets below
Relational expression 5 and relational expression 6.
[relational expression 5] φ d1i < φ B < φ d1o < φ A1
[relational expression 6] φ d2i < φ B < φ d2o < φ A2
In addition, as shown in Figure 1A~Fig. 1 C, the 1st slide valve of the present embodiment with above-mentioned structure is taken a seat portion the 31, the 2nd
Slide valve take a seat portion 32, the 1st main body take a seat portion 33 and the 2nd main body take a seat portion 34 be respectively formed at extend on radial Dr it is flat
Face, the 1st force section 13 and the 2nd force section 14 are seated at the flat surface.In addition, the 1st covers portion 35 of taking a seat as shown in Figure 1A~Fig. 1 C
Portion 36 of taking a seat is covered with the 2nd and is also respectively formed at the flat surface extended on radial Dr, and the 1st force section 13 and the 2nd force section 14 are taken a seat
In the flat surface.
[effect and effect]
According to the slide valve 10 of the present embodiment with above-mentioned structure, play the role of below and effect.
As described above, it is configured to from both ends in a manner of across both slide body 12 and valve body 11 to slide valve
The 1st force section 13 and the 2nd force section 14 that main body 12 exerts a force, needed in the slide valve of above-mentioned patent document 1
The components such as the holder wanted.Thus, it is possible to reduce components number, can simply form on axial Dx to slide body 12
The sliding equipment of force, further, it is possible to simply assemble.
In addition, by meeting " Ls ≈ Lb ", it, can essence regardless of the characteristic of the 1st force section 13 and the 2nd force section 14
Degree determines the neutral position of slide body 12 well.Thus, without 13 He of the 1st force section for the purpose of determining neutral position
The adjustment of the elastic characteristic of 2nd force section 14 can simplify the assembly of slide valve 10.In addition, being not necessarily required to make the 1st force section
13 elastic characteristic and the elastic characteristic of the 2nd force section 14 closely balance.In addition, the 1st force section 13 can also individually be set
With the respective characteristic in the 2nd force section 14.For example, it is also possible in the elastic characteristic of the 1st force section 13 and the elasticity of the 2nd force section 14
Difference is energetically set between characteristic.In this case, the mobility of slide body 12 can be set to various forms, energy
Enough provide versatility excellent slide valve 10.In addition, making slide body 12 make slide valve from neutral position (A referring to Fig.1) movement
In the case that main body 12 is configured at activation point (B and Fig. 1 C referring to Fig.1), only make 13 He of the 1st force section using slide body 12
The compression of one of 2nd force section 14.Thus, it is possible to energy efficiency makes slide body 12 mobile well, further, it is possible to
Slide body 12 is steadily configured at desired position.
In addition, by meeting above-mentioned relational expression 1 (φ B < φ A1 < φ B+2 × d1) and (the φ B < φ A2 < of relational expression 2
φ B+2 × d2), can make the 1st main body of valve body 11 take a seat portion 33 and the 2nd main body take a seat portion 34 radial Dr size than
The radial Dr's of 1 force section 13 and the 2nd force section 14 is big slight.Thus, the 1st force section 13 and the 2nd force section 14 are respectively in diameter
It is limited on Dr by physics, is configured in a manner of across both valve body 11 and slide body 12.
In addition, by meet above-mentioned relational expression 3 (φ B+d1≤φ A1 < φ B+2 × d1) and relational expression 4 (φ B+d2≤
φ A2 < φ B+2 × d2), the 1st main body can take a seat to portion 33 and the 2nd main body take a seat portion 34 radial Dr on width set to obtain ratio
It is wider.Thereby, it is possible to which the 1st force section 13 and the 2nd force section 14 to be seated in, the 1st main body takes a seat portion 33 and the 2nd main body is taken a seat portion
When 34 can contact area be set to wider, the 1st force section 13 and the 2nd force section 14 can be made properly to be seated at
1 main body takes a seat portion 33 and the 2nd main body is taken a seat portion 34.
In addition, by meeting above-mentioned relational expression 5 (φ d1i < φ B < φ d1o < φ A1) and (the φ d2i < of relational expression 6
φ B < φ d2o < φ A2), it, can be by the 1st force section 13 and the 2nd force section 14 respectively in the 1st space S 1 and the 2nd space S 2
By reliably across both valve body 11 and slide body 12 in a manner of be configured at around slide body 12.Thus, it is possible to sharp
16 the 1st force section 13 of limitation of the 15 and the 2nd port cover and the 2nd force section 14 are covered on radial Dr with slide body 12, the 1st port
Movement, the 1st force section 13 and the 2nd force section 14 can properly be configured relative to valve body 11 and slide body 12.
In addition, can also make the construction generalization in the both ends of slide body 12, it is able to use with general construction
The 1st force section 13 and the 2nd force section 14, in addition, being able to use the 1st port with general construction covers the 15 and the 2nd port
Cover 16.By so making universal component, inhibit cost, part management also becomes easy, and is easy to that slide valve 10 is promoted to distinguish
It is minimized on axial Dx and radial direction Dr.
[the 1st variation]
Fig. 3 A~Fig. 3 C is the enlarged cross-sectional view that outlined a variation of valve body 11 and slide body 12.This
Outside, in Fig. 3 A~Fig. 3 C shown with the structure of the side one end P1 of valve body 11, but the other end side P2 of valve body 11
Valve body 11, slide body 12 and the 2nd force section 14 also have and valve body 11 shown in Fig. 3 A~Fig. 3 C, slide body 12
And the same structure in the 1st force section 13.
In this variation, the 1st slide valve portion 31 of taking a seat has the shape that is recessed to the 1st axial direction Dx1, and the 2nd slide valve is taken a seat portion
32 have the shape being recessed to the 2nd axial direction Dx2.1st slide valve takes a seat portion 31 and the 2nd slide valve is taken a seat, and portion 32 is respectively formed stage portion,
It is seated in the take a seat position of the 1st force section 13 in portion 31 of the 1st slide valve to be limited by the stage portion from inside, in addition, it is sliding to be seated in the 2nd
Valve take a seat portion 32 the 2nd force section 14 position by the stage portion from inside limit.Specifically, being taken a seat portion 31 by the 1st slide valve
The size (i.e. diameter) of the radial Dr of the stage portion (especially to the 2nd part outstanding axial direction Dx2) of formation is set to than having
The internal diameter (referring to the appended drawing reference " φ d1i " of Fig. 2) of 1st force section 13 of cylindrical shape is small.In addition, being taken a seat portion by the 2nd slide valve
The size (i.e. diameter) of the radial Dr of 32 stage portions (especially to the 1st part outstanding axial direction Dx1) formed is set to than tool
There is the internal diameter of the 2nd force section 14 of cylindrical shape small.Such slide body 12, which limits, to be seated in the 1st slide valve and has taken a seat the shape in portion 31
Movement of 1st force section 13 of state on radial Dr, limitation be seated in the 2nd slide valve take a seat portion 32 state the 2nd force section
14 movement on radial Dr.
In addition, the 1st main body is taken a seat, portion 33 has the shape that is recessed to the 1st axial direction Dx1, the 2nd main body take a seat portion 34 with to
The shape of 2nd axial direction Dx2 recess.Valve body 11, which limits, to be seated in take a seat the 1st force section 13 of state in portion 33 of the 1st main body and has existed
Movement on radial Dr, limitation be seated in the 2nd main body take a seat portion 34 state shifting of the 2nd force section 14 on radial Dr
It is dynamic.1st main body takes a seat portion 33 and the 2nd main body is taken a seat, and portion 34 is respectively formed stage portion, is seated in the 1st main body and takes a seat the 1st of portion 33
The position of force section 13 is limited by the stage portion from outside, is taken a seat the 2nd force section 14 in portion 34 in addition, being seated in the 2nd main body
Position is limited by the stage portion from outside.Specifically, taking a seat stage portion that portion 33 is formed (especially to the 2nd axis from the 1st main body
To the part outstanding Dx2) the size (i.e. diameter) of radial Dr be set to the outer diameter than the 1st force section 13 with cylindrical shape
(referring to the attached drawing table " φ d1o " of Fig. 2) is big.In addition, from the 2nd main body take a seat stage portion that portion 34 formed (especially to the 1st it is axial
The part outstanding Dx1) the size (i.e. diameter) of radial Dr be set to the outer diameter than the 2nd force section 14 with cylindrical shape
Greatly.Such valve body 11 limit be seated in the 1st main body take a seat portion 33 state shifting of the 1st force section 13 on radial Dr
It is dynamic, limitation be seated in the 2nd main body take a seat portion 34 state movement of the 2nd force section 14 on radial Dr.
As described above in the variation shown in Fig. 3 A~Fig. 3 C, the 1st force of the limitation of slide body 12 is utilized from inside
14 respective positions of portion 13 and the 2nd force section, also, the 1st force section 13 and the 2nd force section are limited from outside using valve body 11
14 respective positions.In the case where slide body 12 is configured at neutral position, such 1st slide valve as shown in Figure 3A is taken a seat portion 31
It is formed by face and the 1st main body portion 33 of taking a seat is formed by face and is present on the same plane extended along radial Dr, the 2nd slide valve
Portion 32 of taking a seat is formed by face and the 2nd main body portion 34 of taking a seat is formed by face and is present in the same plane extended along radial Dr
On.Also, portion 31 is being taken a seat by the 1st slide valve and the 1st main body slot that portion 33 is formed of taking a seat configures the end of the 1st force section 13, In
Portion 32 is taken a seat by the 2nd slide valve and the 2nd main body slot that portion 34 is formed of taking a seat configures the end of the 2nd force section 14.
In addition, both valve body 11 and slide body 12 have recess in the variation shown in Fig. 3 A~Fig. 3 C
The portion of taking a seat of shape, but can also only one of valve body 11 and slide body 12 have recess shape portion of taking a seat.Separately
Outside, it is also possible in an end, only there is valve body 11 portion of taking a seat of the shape of recess only to slide in another end
Valve body 12 has the portion of taking a seat of the shape of recess.As long as that is, the 1st force section 13 and the 2nd force section 14 are respectively across valve body
11 and the mode of both slide bodies 12 configure, any one of valve body 11 and slide body 12 or both can have
The portion of taking a seat of the shape of recess.
Fig. 4 A~Fig. 4 B is the enlarged cross-sectional view that outlined a variation of the 1st port cover 15.In addition, Fig. 4 A~
Only shown with the 1st port cover 15 in Fig. 4 B, but the 2nd port cover 16 also has with the cover of the 1st port shown in Fig. 4 A~Fig. 4 B 15 together
The structure of sample.
It is covered in the 15 and the 2nd port cover 16 in the 1st port of this variation, the 1st, which covers portion 35 of taking a seat, has to the 2nd axial direction Dx2
The shape of recess, the 2nd cover take a seat portion 36 with the shape being recessed to the 1st axial direction Dx1.1st, which covers portion 35 and the 2nd of taking a seat, covers portion of taking a seat
36 are respectively formed stage portion, and the position for being seated in the 1st force section 13 that the 1st covers portion 35 of taking a seat is limited by the stage portion from outside,
In addition, the position for being seated in the 2nd force section 14 that the 2nd covers portion 36 of taking a seat is limited by the stage portion from outside.Specifically, by
1 size (i.e. diameter) for covering the radial Dr of the stage portion (especially to the 1st part outstanding axial direction Dx1) for the formation of portion 35 of taking a seat is set
Determine than having the outer diameter of the 1st force section 13 of cylindrical shape (referring to the appended drawing reference " φ d1o " of Fig. 2) big or exerting a force with the 1st
The outer diameter in portion 13 is identical.In addition, covering the stage portion that portion 36 of taking a seat is formed from the 2nd (especially to the 2nd part outstanding axial direction Dx2)
Radial Dr size (i.e. diameter) be set to it is bigger than the outer diameter of the 2nd force section 14 with cylindrical shape or with the 2nd force section
14 outer diameter is identical.In addition, the 1st force section 13 and the 2nd force section 14 can also be embedding with the state compressed on radial Dr
Enter the pit that the 2nd port covers 16 and 17.In this way, cover 15 limitation in the 1st port has been seated in the 1st of the state that the 1st covers portion 35 of taking a seat
Movement of the force section 13 on radial Dr, 16 limitation of the 2nd port cover have been seated in the 2nd force of the state that the 2nd covers portion 36 of taking a seat
Movement of the portion 14 on radial Dr.
Thus, according to this modification, the 1st force section 13 and the 2nd force section 14 can be guided using stage portion and is applied the 1st
Power portion 13 and the 2nd force section 14 are configured at the desired position on radial Dr, can accurately and reliably carry out the 1st force
The centering in portion 13 and the 2nd force section 14.
[the 2nd variation]
Fig. 5 is the enlarged cross-sectional view that outlined another variation of valve body 11 and slide body 12, indicates slide valve
Main body 12 is configured at the state of neutral position.In addition, the structure of the side one end P1 of valve body 11 is shown in FIG. 5, but valve
Valve body 11, slide body 12 and the 2nd force section 14 of the other end side P2 of main body 11 also have and valve master shown in fig. 5
Body 11, the same structure of slide body 12 and the 1st force section 13.
In this variation, the 1st slide valve takes a seat portion 31 and the 2nd slide valve portion 32 of taking a seat is respectively provided with inclined surface.1st force section
13 are seated at from the 1st slide valve of the one end P1 of valve body 11 outstanding slide body 12 and take a seat the inclined surface in portion 31.In addition,
2nd force section 14 is seated at from the 2nd slide valve of the other end P2 of valve body 11 outstanding slide body 12 and takes a seat portion 32
Inclined surface.Be seated in as a result, the 1st slide valve take a seat portion 31 the 1st force section 13 position by the inclined surface from inside limit, separately
Outside, be seated in the 2nd slide valve take a seat portion 32 the 2nd force section 14 position by the inclined surface from inside limit.
In addition, the 1st main body is taken a seat, portion 33 and the 2nd main body portion 34 of taking a seat also are respectively provided with inclined surface.It is (special in slide body 12
It is not that the 1st slide valve is taken a seat portion 31) it is drawn from the one end P1 of valve body 11 (especially the 1st main body take a seat portion 33) to the 1st axial direction Dx1
In a period of entering, the 1st force section 13 is seated at the 1st main body and takes a seat the inclined surface in portion 33.In slide body 12, (the especially the 2nd is sliding
Valve is taken a seat portion 32) phase from the other end P2 of valve body 11 (especially the 2nd main body take a seat portion 34) to the 2nd axial direction Dx2 that pulled in from
In, the 2nd force section 14 is seated at the 2nd main body and takes a seat the inclined surface in portion 34.
In addition, the 1st force section 13 as shown in Figure 5 is taken a seat in the case where slide body 12 is configured at neutral position
The inclined surface in portion 31 is taken a seat in the 1st slide valve and the 1st main body is taken a seat both inclined surface in portion 33, and the 2nd force section 14 is seated at the 2nd
Slide valve takes a seat the inclined surface in portion 32 and the 2nd main body is taken a seat both inclined surface in portion 34.In addition, in variation shown in Fig. 5,
Both valve body 11 and slide body 12 include the portion of taking a seat with inclined surface, can also only valve body 11 and slide body 12
One of include the portion of taking a seat with inclined surface.Alternatively, it is also possible to be, in an end, only valve body 11 includes having
The portion of taking a seat of inclined surface, in another end, only slide body 12 includes having the portion of taking a seat of inclined surface.
Fig. 6 is the enlarged cross-sectional view that outlined another variation of the 1st port cover 15.In addition, only being shown in Fig. 6
There is the 1st port to cover 15, but the 2nd port cover 16 also has and the 1st port shown in fig. 6 15 same structures of cover.
It covers the 15 and the 2nd port cover 16 and is respectively provided with tapered portion 60 in 1st port of this variation.It applies 1st force section 13 and the 2nd
Power portion 14 is guided by the inclined surface of tapered portion 60 and promotes the insertion into tapered portion 60, is precisely seated at the 1st cover and falls
Portions 35 and the 2nd cover the predetermined position in portion 36 of taking a seat.The tapered portion 60 of 1st port cover 15 it is nearest away from the 1st cover portion 35 of taking a seat
The diameter of radial Dr at position is set to smaller than not by the outer diameter of the 1st force section 13 of external force.On the other hand, the 1st port is covered
15 tapered portion 60 away from the 1st cover take a seat portion 35 most far from the diameter of radial Dr be set to not applied by the 1st of external force the
It is more than the outer diameter in power portion 13.Thus, it is seated in the top for covering 35 side of portion of taking a seat by the 1st for the 1st force section 13 that the 1st covers portion 35 of taking a seat
End is compressed and is supported on radial Dr by tapered portion 60, can precisely carry out on the radial Dr of the 1st force section 13
Positioning.Similarly, the diameter that the radial Dr at the nearest position in portion 36 of taking a seat is covered away from the 2nd of the tapered portion 60 of the 2nd port cover 16
It is set to smaller than not by the outer diameter of the 2nd force section 14 of external force, the tapered portion 60 of the 2nd port cover 16 is taken a seat portion 36 away from the 2nd cover
Most far from the diameter of radial Dr be set to the not outer diameter by the 2nd force section 14 of external force or more.Thus, it is seated in
2 cover take a seat portion 36 the 2nd force section 14 by the 2nd cover take a seat 36 side of portion top end parts compress on radial Dr by tapered portion 60 with
Bearing, can precisely carry out the positioning on the radial Dr of the 2nd force section 14.
According to make as this variation the 1st force section 13 and the 2nd force section 14 be seated at the portion of taking a seat inclined surface knot
Structure can be guided the 1st force section 13 and the 2nd force section 14 using inclined surface and configure the 1st force section 13 and the 2nd force section 14
In the desired position on radial Dr, determining for the 1st force section 13 and the 2nd force section 14 can accurately and be reliably carried out
The heart.In addition, the 1st force section 13 and the 2nd force section 14 is made to be seated at any part in inclined surface, it therefore, can be simple
The installation fixation and assembly of ground progress the 1st force section 13 and the 2nd force section 14.
[application examples]
Fig. 7 is the section view for indicating to apply an example of the slide valve 10 of above-mentioned each embodiment and each variation
Figure.
As shown in fig. 7, be formed in valve body 11 with multiple flow paths 53 of various shapes, each flow path 53 is with to being formed in
The mode that the sliding valve hole 20 of valve body 11 is open is arranged.In these flow paths 53 include with the hydraulic power source of supply working oil (such as
Hydraulic pump etc.) connection flow path, be connected to the hydraulic device (such as hydraulic cylinder or hydraulic pump etc.) driven by working oil flow path,
And the flow path being connected to for the oil storage tank that working oil is discharged.
Slide body 12 includes multiple circular bead surfaces 51, has the diameter roughly the same with the diameter of sliding valve hole 20；With it is more
A notch section 52, is formed between circular bead surface 51, has the diameter smaller than the diameter of sliding valve hole 20.It is opposite according to slide body 12
The position of circular bead surface 51 and notch section 52 relative to each flow path 53 is changed in the relative position of the axial Dx of valve body 11.By
Circular bead surface 51 is configured between flow path 53, the flowing of the working oil between the flow path 53 is blocked, and by being configured between flow path 53
Notch section 52 forms the flowing of working oil between the flow path 53.
In the slide valve shown in Fig. 7 10 with above-mentioned structure, the 1st force section 13 and the 2nd force section 14 are respectively in diameter
It configures in a manner of across both valve body 11 and slide body 12 on Dr, so as to simplify construction, while realizing excellent
Different assembling.In addition, by will " the 1st slide valve takes a seat portion 31 and the 2nd slide valve is taken a seat the distance between portion 32 Ls " and " the 1st leads
Body takes a seat portion 33 and the 2nd main body is taken a seat, and the distance between portion 34 Lb " is set to meet " Ls=Lb ", so as to simplify slide valve 10
Construction, while slide body 12 being made precisely to be configured at neutral position.
The present invention is not limited to above-mentioned embodiment and variations.For example, it is also possible to above-mentioned embodiment and
Each element of variation applies various modifications.In addition, including the form of the constituent element other than above-mentioned structural element
It is contained in embodiments of the present invention.In addition, the form for not including a part of element in above-mentioned structural element is also contained in
Embodiments of the present invention.In addition, including a part of constituent element and the present invention that a certain embodiment of the invention is included
The form of another embodiment a part of constituent element for being included also be contained in embodiments of the present invention.Thus, it is above-mentioned
Embodiment and variation and the embodiments of the present invention in addition to the foregoing constituent element that is respectively included can also
To be combined with each other, such combined form is also contained in embodiments of the present invention.In addition, the effect played by the present invention
Also it is not limited to above-mentioned effect, can also play distinctive effect corresponding with the specific structure of each embodiment.In this way,
It, can be to claims, specification, abstract and attached drawing institute in the range of not departing from technical idea and purport of the invention
Each element recorded carries out various additions, change and part and deletes.
Claims (15)
1. a kind of slide valve, has:
Valve body has the sliding valve hole extended in the axial direction；
Slide body, can be configured in the sliding valve hole in a manner of the axis upward sliding；
1st force section, the slide body outstanding to the one end from the valve body into the axial direction from one
1st axial force distribution of the end side towards the other end side；And
2nd force section, to from the outstanding slide body in the other end of the valve body into the axial direction from
The other end side towards the one end side the 2nd axial force distribution,
1st force section with it is described axially vertical radially with the one end and the slide valve across the valve body
The mode of both main bodys configures,
2nd force section it is described radially with across the valve body described the other end and both slide bodies
Mode configure.
2. slide valve according to claim 1, wherein
The slide body includes the 1st slide valve and takes a seat portion, and the end of the one end side is arrived in setting；And the 2nd slide valve take a seat
The end of the other end side is arrived in portion, setting,
1st force section is seated at the described 1st from the outstanding slide body of the one end of the valve body
Slide valve is taken a seat portion,
2nd force section is seated at described from the outstanding slide body in described the other end of the valve body
2 slide valves are taken a seat portion.
3. slide valve according to claim 2, wherein
The 1st slide valve portion of taking a seat has the shape to the 1st axial depression,
The 2nd slide valve portion of taking a seat has the shape to the 2nd axial depression,
Slide body limitation be seated in the 1st slide valve take a seat portion state the 1st force section in the radial direction
On movement, and limit be seated in the 2nd slide valve take a seat portion state the 2nd force section in the shifting radially
It is dynamic.
4. slide valve according to claim 2 or 3, wherein
1st slide valve takes a seat portion and the 2nd slide valve portion of taking a seat is respectively provided with inclined surface,
1st force section is seated at the described 1st from the outstanding slide body of the one end of the valve body
Slide valve is taken a seat the inclined surface in portion,
2nd force section is seated at described from the outstanding slide body in described the other end of the valve body
2 slide valves are taken a seat the inclined surface in portion.
5. the slide valve according to any one of claim 2~4, wherein
1st slide valve take a seat portion the width radially it is smaller than the width described in the 1st force section radially,
2nd slide valve take a seat portion the width radially it is smaller than the width described in the 2nd force section radially.
6. slide valve according to any one of claims 1 to 5, wherein
The valve body includes the 1st main body and takes a seat portion, and the one end is arrived in setting；And the 2nd main body take a seat portion, setting
To described the other end,
In a period of the slide body is pulled in from the one end of the valve body, the 1st force section is seated at institute
The 1st main body is stated to take a seat portion,
In a period of the slide body is pulled in from described the other end of the valve body, the 2nd force section is seated at
2nd main body is taken a seat portion.
7. slide valve according to claim 6, wherein
The 1st main body portion of taking a seat has the shape to the 1st axial depression,
The 2nd main body portion of taking a seat has the shape to the 2nd axial depression,
Valve body limitation be seated in the 1st main body take a seat portion state the 1st force section it is described radially
Movement, and limit be seated in the 2nd main body take a seat portion state the 2nd force section in the shifting radially
It is dynamic.
8. slide valve according to claim 6 or 7, wherein
1st main body takes a seat portion and the 2nd main body portion of taking a seat is respectively provided with inclined surface,
In a period of the slide body is pulled in from the one end of the valve body, the 1st force section is seated at institute
The 1st main body is stated to take a seat the inclined surface in portion,
In a period of the slide body is pulled in from described the other end of the valve body, the 2nd force section is seated at
2nd main body is taken a seat the inclined surface in portion.
9. slide valve described according to claim 1~any one of 8, wherein
The slide valve is also equipped with:
1st port cover, is installed on the one end of the valve body, has the 1st sky for the 1st force section configuration
Between；And
2nd port cover, is installed on described the other end of the valve body, has the 2nd sky for the 2nd force section configuration
Between.
10. slide valve according to claim 9, wherein
1st force section and the 2nd force section are respectively provided with helical spring,
The size described in the 1st space radially is being indicated using φ A1, is being indicated described in the 2nd space using φ A2
Size radially indicates size described in the sliding valve hole radially using φ B, d1 is utilized to indicate the 1st force section
The helical spring wire rod line width, indicated using d2 the 2nd force section the helical spring wire rod line width
In the case where,
Meet φ B < φ A1 < φ B+2 × d1 and φ B < φ A2 < φ B+2 × d2.
11. slide valve according to claim 10, wherein
Meet φ B+d1≤φ A1 < φ B+2 × d1 and φ B+d2≤φ A2 < φ B+2 × d2.
12. the slide valve according to any one of claim 9~11, wherein
The 1st port cover has the take a seat for the 1st force section the 1st to cover portion of taking a seat,
The 2nd port cover has the take a seat for the 2nd force section the 2nd to cover portion of taking a seat.
13. slide valve according to claim 12, wherein
1st cover portion of taking a seat has the shape to the 2nd axial depression,
2nd cover portion of taking a seat has the shape to the 1st axial depression,
1st port cover limitation be seated in the 1st cover take a seat portion state the 1st force section it is described radially
Movement,
2nd port cover limitation be seated in the 2nd cover take a seat portion state the 2nd force section it is described radially
Movement.
14. the slide valve according to any one of claim 9~13, wherein
In the case where the one end of the slide body from the valve body is outstanding, the 1st force section is described
It is compressed between 1st port cover and the slide body, also, the 2nd force section is in the 2nd port cover and the valve master
It is compressed between body,
In the case where described the other end of the slide body from the valve body is outstanding, the 1st force section is in institute
It states and is compressed between the 1st port cover and the valve body, also, the 2nd force section is in the 2nd port cover and the slide valve
It is compressed between main body.
15. the slide valve according to any one of claim 9~14, wherein
The 1st port cover has the 1st pressure oil port of the introducing port and outlet that constitute the pressure oil in the 1st space,
The 2nd port cover has the 2nd pressure oil port of the introducing port and outlet that constitute the pressure oil in the 2nd space,
The slide body from the pressure oil stress in the pressure oil and the 2nd space in the 1st space,
The slide body is relative to the position in the axial direction of the valve body according to the pressure oil in the 1st space
Pressure and the pressure of the pressure oil in the 2nd space and change.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-053320 | 2017-03-17 | ||
| JP2017053320A JP6887837B2 (en) | 2017-03-17 | 2017-03-17 | Spool valve |
| PCT/JP2018/008598 WO2018168577A1 (en) | 2017-03-17 | 2018-03-06 | Spool valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110431338A true CN110431338A (en) | 2019-11-08 |
Family
ID=63522932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880018877.XA Pending CN110431338A (en) | 2017-03-17 | 2018-03-06 | Slide valve |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6887837B2 (en) |
| KR (1) | KR102538807B1 (en) |
| CN (1) | CN110431338A (en) |
| WO (1) | WO2018168577A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102018204586B4 (en) | 2018-03-26 | 2024-05-23 | Hawe Hydraulik Se | Hydraulic directional spool valve with leakage control |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632678Y2 (en) * | 1977-08-29 | 1981-08-03 | ||
| JPH04132281U (en) * | 1991-05-28 | 1992-12-07 | 株式会社小松製作所 | Pilot pressure operated control valve |
| JP2009121627A (en) * | 2007-11-16 | 2009-06-04 | Caterpillar Japan Ltd | Spool position control device of spool valve |
| JP2014163476A (en) * | 2013-02-27 | 2014-09-08 | Mitsubishi Heavy Ind Ltd | Spool valve |
| CN104295772A (en) * | 2014-10-16 | 2015-01-21 | 江苏恒立液压有限公司 | Reversing valve spool two-stage fluid control structure |
| JP2017003100A (en) * | 2015-06-16 | 2017-01-05 | 日立建機株式会社 | Spool valve device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6311431Y2 (en) * | 1980-07-28 | 1988-04-04 | ||
| JPS60231084A (en) * | 1984-04-27 | 1985-11-16 | Toshiba Mach Co Ltd | Valve device |
| JPH11210899A (en) | 1998-01-26 | 1999-08-03 | Nabco Ltd | Positioning device for directional control valve |
| JP6228853B2 (en) * | 2014-01-31 | 2017-11-08 | メトロ開発株式会社 | High water check valve |
-
2017
- 2017-03-17 JP JP2017053320A patent/JP6887837B2/en active Active
-
2018
- 2018-03-06 WO PCT/JP2018/008598 patent/WO2018168577A1/en active Application Filing
- 2018-03-06 CN CN201880018877.XA patent/CN110431338A/en active Pending
- 2018-03-06 KR KR1020197026931A patent/KR102538807B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632678Y2 (en) * | 1977-08-29 | 1981-08-03 | ||
| JPH04132281U (en) * | 1991-05-28 | 1992-12-07 | 株式会社小松製作所 | Pilot pressure operated control valve |
| JP2009121627A (en) * | 2007-11-16 | 2009-06-04 | Caterpillar Japan Ltd | Spool position control device of spool valve |
| JP2014163476A (en) * | 2013-02-27 | 2014-09-08 | Mitsubishi Heavy Ind Ltd | Spool valve |
| CN104295772A (en) * | 2014-10-16 | 2015-01-21 | 江苏恒立液压有限公司 | Reversing valve spool two-stage fluid control structure |
| JP2017003100A (en) * | 2015-06-16 | 2017-01-05 | 日立建機株式会社 | Spool valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102538807B1 (en) | 2023-06-01 |
| WO2018168577A1 (en) | 2018-09-20 |
| JP6887837B2 (en) | 2021-06-16 |
| KR20190127730A (en) | 2019-11-13 |
| JP2018155347A (en) | 2018-10-04 |
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