CN206929151U - A kind of hydraulic reversing valve - Google Patents
A kind of hydraulic reversing valve Download PDFInfo
- Publication number
- CN206929151U CN206929151U CN201720606637.4U CN201720606637U CN206929151U CN 206929151 U CN206929151 U CN 206929151U CN 201720606637 U CN201720606637 U CN 201720606637U CN 206929151 U CN206929151 U CN 206929151U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- hole
- proximity switch
- magnetic patch
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of hydraulic reversing valve, including valve body, valve element and end cap, valve element is provided with mutually perpendicular oil-through-hole, the valve element of rotation is arranged in the cavity of valve body, hydraulic fluid port is set on valve body, conversion and the break-make of liquid flow path direction are realized by the rotation of valve element, reaches the circle of Spool rotating one and realizes that the in-oil cylinder piston rod being connected with valve body completion once pushes, paused and up.The utility model is simple in construction, easy to operate, and automaticity is high, can be stopped the rotation by setting for proximity switch in relevant position valve element to complete required operation；After rotary valve of the present utility model is connected with oil cylinder, pneumatic hammer can be substituted, realizes that short stroke is forged soon, it is with small vibration, noise is low, cost-effective.
Description
Technical field
The present invention relates to a kind of hydraulic reversing valve.
Background technology
In forging industry, pneumatic hammer, Single arm can all produce noise and vibration（Advanced by the piston rod in working cylinder real
Now forge, stroke length, vibration is big, noise is big）, worker has on earphone operation, and occupational disease, ear are clever, so thoroughly changing this one side
Looks are very urgent.
The structure of current pneumatic hammer such as https:Described in //tieba.baidu.com/p/4102184019, action process
It is when motor driving crankshaft connecting rod system rotation, when compression piston is above pushed away in compression cylinder, compression cylinder upper air
Working cylinder top is entered by upper stopcock, the air of working cylinder bottom enters compression cylinder by lower stopcock, at this moment on working cylinder
In the presence of portion's compressed air and tup deadweight, complete to move downward.When compression piston moves downward, air flow with it is above-mentioned
Situation is on the contrary, tup completes ascending motion.Its vibration is big, noise is big.
The content of the invention
Present invention mainly solves technical problem be, there is provided a kind of hydraulic reversing valve, it is realized by the rotation of valve element exists
The break-make for two oil circuits of interior completion that turn around is revolved, the proximity switch of setting coordinates the magnetic patch on sender set that this turn can be greatly improved
The automaticity of valve and the reliable control for realizing different oil circuits；It is low cost, easy to use, reliable, it is with small vibration, noise is small.
The technical solution adopted for the present invention to solve the technical problems is：A kind of hydraulic reversing valve, including the stepped cylindrical bodily form
Valve element, inside set the valve body of the cavity for Spool rotating, cavity is cylindrical, and it runs through valve along valve core axis direction
Body, valve body are provided with the end cap for closed valve；Valve body is provided with oil inlet and oil-out, in addition to is arranged on end cap or valve
Oil cylinder interface on body；The first oil-through-hole and the second oil-through-hole being connected are additionally provided with valve element, the maximum cylinder of valve element
Fuel-displaced dashpot is entered in side provided with one, it is described enter fuel-displaced dashpot be connected with the second oil-through-hole, oil cylinder interface and first logical
Oilhole is connected.Cavity is designed through valve body, then completes closing, completely for whole valve body by respective designs such as bonnets；Oil
Cylinder interface is arranged on the lower end of valve body（Valve core axis are vertical when i.e. valve body works）.The axis of valve element is provided with the first logical oil
Hole, the bottom of the first oil-through-hole are corresponding with the bottom of valve body；Preferable technical scheme is to be additionally provided with shape and first on valve element
The oil-through-hole of oil-through-hole identical second, the axis of the second oil-through-hole are vertical with the axis of the first oil-through-hole（Certain out of plumb also may be used
With）.
As a kind of further improvement of hydraulic reversing valve of the present invention, the first oil-through-hole and the second oil-through-hole form L-shaped；It is described
Oil cylinder interface is straight hole；Or oil cylinder interface is L-shaped hole or T-shaped hole, or it is vertical by several radial transverse holes and one
The oil-through-hole that hole is formed, its transverse holes are connected with oil cylinder.When oil cylinder interface is T-shaped hole, this valve is to be connected realization with two oil cylinders
Corresponding actions, two oil cylinders oil-feeds simultaneously while fuel-displaced；T-shaped hole is considered as two horizontal oil cylinder interfaces, horizontal two
The axis of oil cylinder interface is perpendicular to oil inlet and the axis of oil-out；It is larger to enter the area of fuel-displaced dashpot, this ensure that
Spool rotating is descending towards the oil mass of oil-feed during oil inlet to fuel-displaced dashpot is entered, and fuel-displaced oil mass is ascending, i.e., oily
The change of amount gradually changes, and reduces impact；First oil-through-hole of valve element and the aperture of the second oil-through-hole are by oil return
Flow（That is the oil return of oil cylinder, it is direction of the oil cylinder interface to oil-out to correspond to oil-feed direction on valve element）Flow design,
It is not the flow design by oil-feed；When Spool rotating to certain angle（When entering fuel-displaced dashpot against oil inlet）Hydraulic oil from
Oil inlet enters oil cylinder interface, and oil inlet, oil-out are blocked during valve core rotation to other angles, and oil can not enter, valve element
Turn to another angle（Actual conditions are an angular ranges, and the oil inlet distance that specific angular range depends on valve body is entered
The distance of fuel-displaced dashpot and the size of oil inlet also have the depth into fuel-displaced dashpot）When only oil inlet is blocked, hydraulic pressure
Oil enters oil-out from oil cylinder interface, so the break-make of two different oil circuits is completed in the circulation that rotation turns around 360 °,
Realized if being applied in forging machine by this valve and complete once to push, pause in 360 ° of circulations, be up and pause.Control
Valve element rotating speed per minute, exactly per minute pushes number.Preferably technical scheme is：Oil inlet and oil-out are on valve body
It is oppositely arranged, the axis of the axis of oil inlet and oil-out perpendicular to valve element；Oil cylinder interface is arranged on the bottom or top of valve body,
If straight hole, it is overlapped oil cylinder interface with the axis of valve element；Oil cylinder interface is also not necessarily and hung down completely if L-shaped hole or T-shaped hole
Straight " L " shape or "T"-shaped；Oil cylinder interface has several transverse holes just to connect several oil cylinders, and Multi-cylinder so can be achieved and forge jointly.
As a kind of further improvement of hydraulic reversing valve of the present invention, cavity extends upward through valve body in valve core axis side, in valve
The cavity both ends of body are respectively equipped with lid and lower cover, and the outer shape of upper lid and the upper end of cavity match, the outside shape of lower cover
The lower end of shape and cavity matches, and the center of upper lid is provided with the first through hole for the cylinder rotation being used at the top of valve element, lower cover
Center is provided with the oil cylinder interface being connected with the bottom of the first oil-through-hole, the " T " shape hole of oil cylinder interface, and "T"-shaped hole is erected
It is connected to hole with the bottom of the first oil-through-hole, two transverse holes in "T"-shaped hole are connected with two oil cylinders respectively, each transverse holes
It is connected by a rotary valve interface with outside oil circuit；Valve interior wall is provided with the rotary valve baffle ring for being used to support lower cover of annular,
It is fixedly connected by bolt with lower cover；The casing for closed valve is just additionally provided with the upper lid, casing is shell-like structure,
It is fixedly connected on by several bolts on valve body and/or upper lid.
As a kind of further improvement of hydraulic reversing valve of the present invention, cavity extends upward through valve body in valve core axis side, in valve
The cavity both ends of body are respectively equipped with lid and for supporting the rotary valve shaft bearing of valve element, the outer shape of upper lid and cavity it is upper
End matches, and the outer shape of rotary valve shaft bearing and the lower end of cavity match, and the center of upper lid, which is provided with, to be used at the top of valve element
Cylinder rotation first through hole, it is logical that the center of rotary valve shaft bearing is provided with second to be connected with the bottom of the first oil-through-hole
Hole, the oil cylinder interface are provided with one, and oil cylinder interface is connected with the first oil-through-hole；Cavity lower end is used to support provided with annular
The rotary valve baffle ring of rotary valve shaft bearing, it is fixedly connected by bolt with rotary valve shaft bearing；Just it is additionally provided with the upper lid
For the casing of closed valve, casing is shell-like structure, is fixedly connected on by several bolts on valve body.
As a kind of further improvement of hydraulic reversing valve of the present invention, valve body is cuboid or cylindrical；The top of valve element
The center of cylinder is held to be provided with the driving hole being used for motor axis connection（Certainly, however it is not limited to which this, have to be not necessarily transmission
Hole, also may be used by shaft coupling etc.）.The scheme being more highly preferred to is one reductor of setting, such as cycloidal pin between motor and driving hole
Reductor is taken turns, realizes that speed turns without when so soon, reaching a suitable job after the rotating speed of motor is driven on valve element
Speed.
As a kind of further improvement of hydraulic reversing valve of the present invention, it is fixedly connected on the nose-circle cylinder of valve element by flat key
The sender set of annular, sender set are provided with one or four magnetic patch, and the casing is provided with four or five proximity switches.When for
During four magnetic patch, four difference are corresponding in proximity switch, and only corresponding magnetic patch is gone under corresponding proximity switch, that
Proximity switch is just powered, and carries out corresponding operating.When for a magnetic patch when, as long as being then that this magnetic patch is turned under proximity switch,
Corresponding proximity switch is just powered, and completes corresponding operation；Certainly, proximity switch is not limited to be provided only on directly over sender set,
Also can be connected by line on the side of valve body, as long as meeting that magnetic patch turns to different target locations, corresponding different angles
The proximity switch of degree is powered；Sender set is annular, can be annular or six in annular, four annular etc. its
He is annular.
As a kind of further improvement of hydraulic reversing valve of the present invention, proximity switch is provided with five, respectively counts close open
Pass, the first proximity switch, the second proximity switch, the 3rd proximity switch and the 4th proximity switch, the disengaging of the first proximity switch face
The middle part of oily dashpot, the first proximity switch, the second proximity switch, the 3rd proximity switch and the 4th proximity switch are in circle counterclockwise
Week distribution；Enter fuel-displaced dashpot two sides and valve element center institute into central angle be 110 ° -130 °.Count the position of proximity switch
It is not arranged in as long as putting at other proximity switches, because the purpose of itself is exactly to count, is easy to connect with digital display device
Valve element corotation how many circle are shown after connecing；The up, descending of hydraulic oil is realized in Spool rotating one encloses and stop twice for realization
（I.e. piston rod is corresponded on the oil cylinder being connected with valve body to push, be up and twice stop）, enter fuel-displaced dashpot in the middle
Horizontal cross-section on two-end-point and the center of valve element in 120 ° of central angle be optimal case, certainly, specific angle can also
Appropriate adjustment.
As a kind of further improvement of hydraulic reversing valve of the present invention, magnetic patch is provided with four, for first on same circle
Magnetic patch, the second magnetic patch, the 3rd magnetic patch and the 4th magnetic patch, the first magnetic patch face enter the middle part of fuel-displaced dashpot, and the second magnetic patch is located at
First magnetic patch turns clockwise on 45 ° to 60 ° of position, and the 3rd magnetic patch is located at the position of 0 ° to 60 ° of the first magnetic patch rotate counterclockwise
Put, the 4th magnetic patch is corresponding with the second magnetic patch.
As a kind of further improvement of hydraulic reversing valve of the present invention, magnetic patch is provided with one, and its position face enters fuel-displaced buffering
The middle part of groove.So when sender set rotates together with valve element, when magnetic patch is turned to below the first proximity switch, first connects
Nearly switch is powered（Second proximity switch, the 3rd proximity switch and the 4th proximity switch dead electricity）, sender make servomotor stop simultaneously
Brake, so enter fuel-displaced dashpot and just face oil inlet on valve body always（Because the oil inlet on valve body is connected to all the time
One oil pump）, at this moment hydraulic oil flow to oil cylinder interface from oil inlet, because oil cylinder interface is ined succession the rodless cavity of oil cylinder, oil cylinder
Piston rod is descending, completes to push the work forged, when magnetic patch is turned to below the second proximity switch or the 4th proximity switch（This
When enter fuel-displaced dashpot neither face oil inlet nor face oil-out）, the second proximity switch or the 4th proximity switch be powered,
Sender makes servomotor stop and brake, and hydraulic oil can not enter, and the piston rod for the oil cylinder ined succession with oil cylinder interface is not up
It is not descending, carry out stopping action.When magnetic patch is turned to immediately below the 3rd proximity switch（At this moment enter fuel-displaced dashpot to face out
Hydraulic fluid port）, the 3rd proximity switch is powered, and sender makes servomotor stop and brake, an oil is also connected with plus the rod chamber of oil cylinder
Pump, therefore at this moment hydraulic oil flows to oil-out from oil cylinder interface always, it is that its piston rod is up to correspond on oil cylinder, is completed back
The action of journey.
As a kind of further improvement of hydraulic reversing valve of the present invention, the second proximity switch and the 4th proximity switch are identical, its
Any of with the second magnetic patch or the 4th magnetic patch to it is corresponding when；First proximity switch is corresponding with the first magnetic patch；3rd close to opening
Close corresponding with the 3rd magnetic patch；First proximity switch, the second proximity switch are different from the transmission signal of the 3rd proximity switch.
The present invention is realized by the rotation of valve element and connect in the break-make and conversion, setting for revolving interior two oil circuits of completion that turn around
Nearly switch coordinates the magnetic patch on sender set that the automaticity of this rotary valve can be greatly improved and realize the reliable control of different oil circuits
System, when realizing valve core rotation to different station, corresponding proximity switch is powered so that servomotor shuts down and can of braking
It is continued for carrying out the oil-feed of corresponding oil circuit；It is low cost, easy to use, reliable, it is with small vibration, noise is small.
Brief description of the drawings
Fig. 1 is a kind of structural representation of hydraulic reversing valve embodiment one of the present invention；
Fig. 2 is the schematic diagram of valve body in Fig. 1；
Fig. 3 is Fig. 2 A-A to schematic diagram；
This Fig. 2 of Fig. 4 top view；
Fig. 5 is the schematic diagram after 90 ° of valve element rotate counterclockwise in Fig. 1；
Fig. 6 is Fig. 5 C-C to schematic diagram；
Fig. 7 is Fig. 5 B-B direction schematic diagram；
Fig. 8 is Fig. 5 K-K to schematic diagram；
Fig. 9 is Fig. 8 D-D to schematic diagram；
Figure 10 is the schematic diagram of Fig. 1 middle cases；
Figure 11 is the schematic diagram of sender set in Fig. 1；
Figure 12 is Figure 11 right view；
Figure 13 is the schematic diagram of upper lid in Fig. 1；
Figure 14 is the schematic diagram of lower cover in Fig. 1；
Figure 15 is the schematic diagram of rotary valve interface in Fig. 1；
Figure 16 is the schematic diagram of rotary valve baffle ring in Fig. 1；
Figure 17 is Figure 16 top view；
Figure 18 is the schematic diagram of cycloidal planetary gear speed reducer in Fig. 1；
Figure 19 is the structural representation of the present embodiment two；
Figure 20 is the schematic diagram of valve body in Figure 19；
Figure 21 is the schematic diagram of Figure 19 middle cases；
Figure 22 is the schematic diagram of upper lid in Figure 19；
Figure 23 is the schematic diagram of rotary valve shaft bearing in Figure 19；
Figure 24 is another structural representation of embodiment two；
Figure 25 is that Fig. 6 turns clockwise the schematic diagram after 90 °；
Figure 26 is the working state schematic representation of the embodiment of the present invention one；
Figure 27 is schematic diagram of the proximity switch in initial position of valve element, sender set and casing in the embodiment of the present invention one；
Figure 28 is the schematic diagram that the second magnetic patch on the sender set in Figure 27 is turned under the second proximity switch of casing；
Figure 29 is the schematic diagram that the 3rd magnetic patch on the sender set in Figure 27 is turned under the 3rd proximity switch of casing；
Figure 30 is the schematic diagram that the second magnetic patch on the sender set in Figure 27 is turned under the 4th proximity switch of casing；
Figure 31 is signal of the proximity switch in initial position of middle valve element, sender set and casing in the embodiment of the present invention two
Figure；
Figure 32 is the schematic diagram that the first magnetic patch on the sender set in Figure 31 is turned under the second proximity switch；
Figure 33 is the schematic diagram that the first magnetic patch on the sender set in Figure 31 is turned under the 3rd proximity switch；
Figure 34 is the schematic diagram that the first magnetic patch on the sender set in Figure 31 is turned under the 4th proximity switch；
Figure 35 is top views of the Fig. 5 along its axis profile figure.
In figure：1st, valve body 2, valve element 3, cavity 4, oil inlet 5, oil-out 6, oil cylinder interface 7,
First oil-through-hole 8, the second oil-through-hole 9, enter fuel-displaced dashpot 10, upper lid 11, lower cover 12, first through hole
13rd, the second through hole 13-1, vertical hole 13-2, transverse holes 14, rotary valve interface 15, rotary valve baffle ring 16,
Bolt 17, casing 18, rotary valve shaft bearing 19, driving hole 20, sender set 21, the first magnetic patch 22,
Count proximity switch 23, the second magnetic patch 24, the 3rd magnetic patch 25, the 4th magnetic patch 26, cycloidal planetary gear speed reducer
27th, the first proximity switch 28, the second proximity switch 29, the 3rd proximity switch 30, the 4th proximity switch 31, oil
Pump 32, fuel tank 33, oil cylinder.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is further described.Following examples are only
For clearly illustrating technical scheme, and can not be limited the scope of the invention with this.
Embodiment one：
As shown in Fig. 1 to Figure 18 and Figure 35, a kind of hydraulic reversing valve, including valve body 1, valve element 2 and end cap, set in valve body 1
There is one to be used for the cavity 3 that valve element 2 rotates, valve element 2 is the stepped cylindrical bodily form, and the shape of cavity 3 and valve element 2 matches, cavity 3
The both ends along the axis direction of valve element 2 run through valve body 1, be provided with what valve body 1 can be closed by the part that cavity 3 runs through on valve body 1
End cap；Valve body 1 is provided with oil inlet 4, oil-out 5 and oil cylinder interface 6, and oil inlet 4 and oil-out 5 are oppositely arranged on valve body 1,
Axis of the axis of oil inlet 4 and oil-out 5 perpendicular to valve element 2；The oil cylinder interface 6 is provided with two, and two oil cylinder interfaces 6 exist
It is oppositely arranged on valve body 1（Form T-shaped hole）；It is cone shape that the axis of valve element 2, which is provided with entirety in cylindrical, top,
First oil-through-hole 7, the bottom of the first oil-through-hole 7 is towards the bottom of valve body 1；Shape and the phase of the first oil-through-hole 7 are additionally provided with valve element 2
With the second oil-through-hole 8, the axis of the axis of the second oil-through-hole 8 perpendicular to the first oil-through-hole 7；The maximum cylinder of valve element 2
Fuel-displaced dashpot 9 is entered in side provided with one, it is described enter fuel-displaced dashpot 9 be connected with the bottom of the second oil-through-hole 8；First logical oil
Hole 7 is connected with the second oil-through-hole 8.Cavity 3 runs through valve body 1 on the axis direction of valve element 2, in being run through by cavity 3 for valve body 1
Both ends are respectively equipped with lid 10 and lower cover 11, and the outer shape of upper lid 10 and the upper end of cavity 3 match, the outside shape of lower cover 11
The lower end of shape and cavity 3 matches, and the center of upper lid 10 is provided with the first through hole 12 for the cylinder rotation for being used for the top of valve element 2,
The center of lower cover 11 is provided with the second through hole 13 being connected with the bottom of the first oil-through-hole 7, and the oil cylinder interface 6 is provided with two,
Second through hole, the 13 " T " shape hole, the vertical hole 13-1 in "T"-shaped hole are connected with the bottom of the first oil-through-hole 7, "T"-shaped hole
Two transverse holes 13-2 be connected respectively with two oil cylinder interfaces 6, each oil cylinder interface 6 by a rotary valve interface 14 with
Outside oil circuit is connected；The lower end of cavity 3 is provided with the rotary valve baffle ring 15 for being used to support lower cover 11 of annular, passes through bolt 16 and lower cover
11 are fixedly connected；The top of upper lid 10 is additionally provided with the casing 17 for closed valve 1, and casing 17 is in hollow stepped cylindrical
The bodily form, it is fixedly connected on by several bolts 16 on valve body 1 and upper lid 10.The center of the nose-circle cylinder of valve element 2, which is provided with, to be used
In the driving hole 19 that the power transmission shaft with cycloidal planetary gear speed reducer 26 is fixedly connected.Valve body 1 is cuboid；The nose-circle of valve element 2
It is fixedly connected with the sender set 20 of annular on cylinder by flat key, sender set 20 is provided with four magnetic patch, under the casing 17
Surface is provided with five proximity switches.Magnetic patch is provided with four, for the first magnetic patch 21 on same circle, the second magnetic patch the 23, the 3rd
The magnetic patch 25 of magnetic patch 24 and the 4th, the first magnetic patch face enter the middle part of fuel-displaced dashpot, and it is clockwise that the second magnetic patch is located at the first magnetic patch
On the position of 50 ° of rotation, the 3rd magnetic patch is located on the position of 10 ° of the first magnetic patch rotate counterclockwise, and the 4th magnetic patch is located at the second magnetic
Where block diametrically.Proximity switch is provided with five, and it is close respectively to count proximity switch 22, the first proximity switch 27, second
The 28, the 3rd proximity switch 29 of switch and the 4th proximity switch 30, the face of the first proximity switch 27 enter the middle part of fuel-displaced dashpot 9,
First proximity switch 27, the second proximity switch 28, the 3rd proximity switch 29 and the 4th proximity switch 30 are distributed in counterclockwise circular；
The center of the two-end-point entered on the horizontal cross-section of fuel-displaced dashpot 9 in the middle and valve element 2 is in 120 ° of central angle, such as Fig. 6 institutes
Show, diameter of the valve element at its maximum cylinder is 600mm, and the depth for entering fuel-displaced dashpot is 150mm, is so entered fuel-displaced slow
The center of two-end-point and valve element 2 on the horizontal cross-section of jet-bedding 9 in the middle is in 120 ° of central angle just, the first oil-through-hole
A diameter of 230mm, oil inlet are ladder circular hole, and cylindrical aperture is 290mm, and interior Circular Aperture is 230mm；Valve body is cuboid,
Bottom surface is 750mm × 920mm rectangle, and oil inlet, oil-out are 150mm apart from the minimum distance of the cavity of valve body；It is such
Size, which is set, disclosure satisfy that as shown in figure 25（On position relationship, the fuel-displaced dashpot that enters of the valve element in Figure 25 is faced on valve body
Oil inlet, and 270 ° of position now faces oil-out in Figure 25）, when Spool rotating is to 345 ° -135 °（That is Figure 25 valve
When 345 ° -135 ° of part of core faces oil inlet）Scope when, hydraulic oil enters oil cylinder interface from oil inlet, with valve body
Connected oil cylinder 33 pushes（As shown in figure 26, the side of the rod chamber of oil cylinder 33 connects oil pump 31, opposite side connection fuel tank all the time
32, the rodless cavity of the oil cylinder interface connection oil cylinder 33 of valve body, the oil inlet 4 of valve body connects an oil pump 31 all the time, and valve body goes out
Hydraulic fluid port 5 connects fuel tank 32, therefore when entering fuel-displaced dashpot and facing the oil inlet on valve body, hydraulic oil enters oil from oil inlet
The oil cylinder 33 that cylinder interface is connected with valve body pushes）.When Spool rotating is to 135 ° -165 °（That is 135 ° -165 ° of Figure 25 valve element
When part faces oil inlet）Scope when（I.e. such as the position of valve element in Figure 30）, enter fuel-displaced dashpot neither face oil inlet,
Face oil-out, hydraulic oil can not enter, oil cylinder 33 yet（That is the oil cylinder of forging press）Piston rod it is slack；When valve element revolves
Go to 165 ° -315 °（That is when 165 ° -315 ° of part of Figure 25 valve element faces oil inlet）When（I.e. such as valve element in Figure 29
Position）, hydraulic oil enters oil-out from oil cylinder interface（Now the oil pump by valve body does not input oil, because hydraulic fluid port is blocked, and oil cylinder
Rod chamber oil pump input oil）, the piston rod of oil cylinder 33 is up, completes the action of backhaul.When Spool rotating is to 315 ° -345 °
When hydraulic oil can not enter, piston rod is slack.
Second proximity switch 28 and the 4th proximity switch 30 are identical, any of which and the second magnetic patch 23 or the 4th magnetic patch 25
During to corresponding to；First proximity switch 27 is corresponding with the first magnetic patch 21；3rd proximity switch 29 is corresponding with the 3rd magnetic patch 24；First
Proximity switch 27, the second proximity switch 28 and the 3rd proximity switch 29 are different.Such as Figure 27（Figure 27-a are valve element in initial position
Schematic diagram；Figure 27-b are schematic diagram of the sender set in initial position；Figure 27-c are the position signal of the proximity switch on casing
Figure）Shown, during initial position, the first magnetic patch is corresponding with the first proximity switch（Now 270 ° of opening positions of valve element are corresponded on valve body
Oil-out）, the energization of the first proximity switch（Second proximity switch, the 3rd proximity switch, the 4th equal dead electricity of proximity switch）, sender
Make servomotor（Servomotor drives Spool rotating by reductor）Stop and brake, hydraulic oil connects from oil inlet into oil cylinder
Mouthful, the piston rod of the oil cylinder 33 of forging press pushes always；When valve element and sender disc spins to the position as shown in Figure 28 or Figure 30,
Second proximity switch 28 and the 4th proximity switch 30 are powered, and the first proximity switch 27 and the dead electricity of the 3rd proximity switch 29, sender make
Servomotor stops and braked, and hydraulic oil can not enter.When valve element and sender disc spins to position as shown in figure 29, the 3rd connects
Nearly switch is powered, and the first proximity switch, the second proximity switch and the 4th proximity switch dead electricity, sender make servomotor stop and stop
Car, hydraulic oil enter oil-out from oil cylinder interface, and the piston rod of the oil cylinder of forging press is up always.When the first proximity switch,
When two proximity switches, the 3rd proximity switch and the equal no power of the 4th proximity switch, it is continuous that servomotor operating can be achieved with fast forging
Compacting.Count the normal open of proximity switch 22 electricity.
If, will be more energy efficient using variable pump, a variable pump be only needed（Two oil pumps 31 are needed unlike Figure 26）, this
The valve and oil cylinder of invention, this three parts are only needed to can be achieved quickly to forge.Can faster with variable pump speed, structure is simpler
It is single, more energy efficient, while be that consider sometimes need not be quickly with variable pump, so that the scope of application of the invention is wider.
Embodiment two：
It is with the difference of embodiment one：As shown in Figure 19 to Figure 23, cavity 3 runs through valve body on the axis direction of valve element 2
1, lid 10 and the rotary valve shaft bearing 18 for supporting valve element 2, the outside of upper lid 10 are respectively equipped with the cavity both ends of valve body 1
Shape and the upper end of cavity 3 match, and the outer shape of rotary valve shaft bearing 18 and the lower end of cavity 3 match, upper lid 10
Center is provided with the first through hole 12 for the cylinder rotation for being used for the top of valve element 2, and the center of rotary valve shaft bearing 18 is provided with and first
The second through hole 13 that the bottom of oil-through-hole 7 is connected, the oil cylinder interface 6 are provided with one, the oil-through-hole 7 of oil cylinder interface 6 and first
It is connected；The lower end of cavity 3 is provided with the rotary valve baffle ring 15 for being used to support rotary valve shaft bearing 18 of annular, passes through bolt 16 and rotation
Rotary valve bearing block 18 is fixedly connected；The top of upper lid 10 is additionally provided with the casing 17 for closed valve 1, and casing 17 is in hollow
The stepped cylindrical bodily form, be fixedly connected on by several bolts 16 on valve body 1.When oil cylinder interface 6 is provided with one, oil cylinder interface
6 are arranged on one end or opposite end for being run through by cavity 3 of valve body 1, and position is located on the axis of valve element 2；Valve body 1 is cuboid
Shape.Magnetic patch is provided with one, and proximity switch is provided with five.According to different forms, structure as of fig. 24 can also be arranged to
（Rotary valve shaft bearing 18 is not required to, and valve body lower portion is arranged to be made the shape of valve element）.Figure 31 to 34 is respectively
Magnetic patch is turned to immediately below the first proximity switch, immediately below the second proximity switch, immediately below the 3rd proximity switch in the present embodiment
View during with immediately below the 4th proximity switch.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of hydraulic reversing valve, it is characterised in that include the valve element of the stepped cylindrical bodily form, inside set cavity for Spool rotating
Valve body, cavity are cylindrical, and it runs through valve body along valve core axis direction, and valve body is provided with the end cap for closed valve；
Valve body is provided with oil inlet and oil-out, in addition to the oil cylinder interface being arranged on end cap or valve body；It is additionally provided with valve element connected
Fuel-displaced dashpot is entered in logical the first oil-through-hole and the second oil-through-hole, the side of the maximum cylinder of valve element provided with one, it is described enter
Fuel-displaced dashpot is connected with the second oil-through-hole, and oil cylinder interface is connected with the first oil-through-hole.
2. hydraulic reversing valve according to claim 1, it is characterised in that first oil-through-hole and the second oil-through-hole form L
Shape；The oil cylinder interface is straight hole；Or oil cylinder interface is L-shaped hole or T-shaped hole, or for by several radial transverse holes and one
The oil-through-hole that individual vertical hole is formed, its transverse holes are connected with oil cylinder.
3. hydraulic reversing valve according to claim 2, it is characterised in that the cavity extends upward through valve in valve core axis side
Body, lid is respectively equipped with the cavity both ends of valve body and lower cover, the outer shape of upper lid and the upper end of cavity match, lower cover
The lower end of outer shape and cavity matches, and the center of upper lid is provided with the first through hole for the cylinder rotation being used at the top of valve element,
The center of lower cover is provided with the oil cylinder interface being connected with the bottom of the first oil-through-hole, and the " T " shape hole of oil cylinder interface is "T"-shaped
The vertical hole in hole is connected with the bottom of the first oil-through-hole, and two transverse holes in "T"-shaped hole are connected with two oil cylinders respectively, each
Transverse holes are connected by a rotary valve interface with outside oil circuit；Valve interior wall is provided with the rotary valve for being used to support lower cover of annular
Baffle ring, it is fixedly connected by bolt with lower cover；The casing for closed valve is just additionally provided with the upper lid, casing is shelly
Structure, it is fixedly connected on by several bolts on valve body and/or upper lid.
4. hydraulic reversing valve according to claim 2, it is characterised in that the cavity extends upward through valve in valve core axis side
Body, lid is respectively equipped with the cavity both ends of valve body and for supporting the rotary valve shaft bearing of valve element, the outer shape of upper lid with
The upper end of cavity matches, and the outer shape of rotary valve shaft bearing and the lower end of cavity match, and the center of upper lid, which is provided with, to be used for
The first through hole of cylinder rotation at the top of valve element, the center of rotary valve shaft bearing is provided with to be connected with the bottom of the first oil-through-hole
The second through hole, the oil cylinder interface be provided with one, oil cylinder interface is connected with the first oil-through-hole；Cavity lower end is provided with annular
For supporting the rotary valve baffle ring of rotary valve shaft bearing, it is fixedly connected by bolt with rotary valve shaft bearing；Side on the upper lid
The casing for closed valve is additionally provided with, casing is shell-like structure, is fixedly connected on by several bolts on valve body.
5. the hydraulic reversing valve according to claim 3 or 4, it is characterised in that the valve body is cuboid or cylindrical；
The center of the nose-circle cylinder of valve element is provided with the driving hole being used for motor axis connection.
6. hydraulic reversing valve according to claim 5, it is characterised in that consolidated on the nose-circle cylinder of the valve element by flat key
The sender set of fixed connection annular, sender set are provided with one or four magnetic patch, and the casing is provided with four or five and close opened
Close.
7. hydraulic reversing valve according to claim 6, it is characterised in that the proximity switch is provided with five, respectively counts
Proximity switch, the first proximity switch, the second proximity switch, the 3rd proximity switch and the 4th proximity switch, the first proximity switch is just
Middle part to entering fuel-displaced dashpot, the first proximity switch, the second proximity switch, the 3rd proximity switch are with the 4th proximity switch in inverse
Hour hands circle distribution；Enter fuel-displaced dashpot two sides and valve element center institute into central angle be 110 ° -130 °.
8. hydraulic reversing valve according to claim 7, it is characterised in that the magnetic patch is provided with four, on same circle
The first magnetic patch, the second magnetic patch, the 3rd magnetic patch and the 4th magnetic patch, the first magnetic patch face enters the middle part of fuel-displaced dashpot, the second magnetic
Block is located at the first magnetic patch and turned clockwise on 45 ° to 60 ° of position, and the 3rd magnetic patch is located at 0 ° of the first magnetic patch rotate counterclockwise extremely
On 60 ° of position, the 4th magnetic patch is corresponding with the second magnetic patch.
9. hydraulic reversing valve according to claim 6, it is characterised in that the magnetic patch is provided with one, its position face disengaging
The middle part of oily dashpot.
10. hydraulic reversing valve according to claim 8, it is characterised in that second proximity switch and the 4th proximity switch
It is identical, any of which and the second magnetic patch or the 4th magnetic patch to it is corresponding when；First proximity switch is corresponding with the first magnetic patch；3rd
Proximity switch is corresponding with the 3rd magnetic patch；First proximity switch, the second proximity switch are different from the transmission signal of the 3rd proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720606637.4U CN206929151U (en) | 2017-05-27 | 2017-05-27 | A kind of hydraulic reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720606637.4U CN206929151U (en) | 2017-05-27 | 2017-05-27 | A kind of hydraulic reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206929151U true CN206929151U (en) | 2018-01-26 |
Family
ID=61352559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720606637.4U Active CN206929151U (en) | 2017-05-27 | 2017-05-27 | A kind of hydraulic reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206929151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084168A (en) * | 2017-05-27 | 2017-08-22 | 江苏德生新材料锻造有限公司 | A kind of hydraulic reversing valve |
-
2017
- 2017-05-27 CN CN201720606637.4U patent/CN206929151U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084168A (en) * | 2017-05-27 | 2017-08-22 | 江苏德生新材料锻造有限公司 | A kind of hydraulic reversing valve |
| CN107084168B (en) * | 2017-05-27 | 2019-06-07 | 江苏德生新材料锻造有限公司 | A kind of hydraulic reversing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202732551U (en) | Electro-hydraulic stepping cylinder | |
| CN206929151U (en) | A kind of hydraulic reversing valve | |
| CN106089863A (en) | A kind of digital servo-hydraulic motor | |
| CN206925261U (en) | Hydraulic rapid forging press | |
| CN208595115U (en) | A kind of multifunctional hydraulic cylinder | |
| CN208764023U (en) | A kind of hydraulic cylinder and hydraulic system | |
| CN108526635B (en) | A kind of Electrolyzed Processing cam hydraulic formula vibration device | |
| CN207746352U (en) | Annular brace formula hydraulic radial forging machine | |
| CN107008840A (en) | Hydraulic rapid forging press | |
| CN103452836A (en) | Capacity varying mechanism of rotor fluid machine | |
| CN201351645Y (en) | Oscillating hydraulic cylinder | |
| CN102853149B (en) | Plunger-type high pressure actuator | |
| CN107084168B (en) | A kind of hydraulic reversing valve | |
| CN103423506B (en) | A kind of many gyration type hydraulic operated valves | |
| CN205401033U (en) | Piston type compressor | |
| CN104676079B (en) | A kind of compact valve driving machine structure | |
| US11174832B2 (en) | Hydraulic device using gravity and buoyancy forces and method for operating such a device | |
| CN207812348U (en) | A kind of new construction of berth lock | |
| CN103790700B (en) | For the piston-engined power transfering device of birotor | |
| CN102878344B (en) | Pneumatic actuator for angular travel valve | |
| WO2021093402A1 (en) | Gearbox and gantry machining center | |
| CN201489724U (en) | Excavating machine for teaching and rotary table driving mechanism thereof | |
| CN107366742A (en) | A kind of automatic speed changer for machine Pneumatic shift control device and shift control method | |
| CN203201890U (en) | Rotation position and speed compound control hydraulic system during segment assembly | |
| CN1280647A (en) | Pendulum piston motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |