CN208918951U - The integrated automatic used with tractor multi-way valve for jumping bit divider function - Google Patents
The integrated automatic used with tractor multi-way valve for jumping bit divider function Download PDFInfo
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- CN208918951U CN208918951U CN201821816582.0U CN201821816582U CN208918951U CN 208918951 U CN208918951 U CN 208918951U CN 201821816582 U CN201821816582 U CN 201821816582U CN 208918951 U CN208918951 U CN 208918951U
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- 230000009191 jumping Effects 0.000 title claims abstract description 33
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- 238000007789 sealing Methods 0.000 claims description 28
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- 239000010720 hydraulic oil Substances 0.000 description 6
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- 239000002828 fuel tank Substances 0.000 description 1
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Abstract
The utility model discloses a kind of integrated automatic used with tractor multi-way valves for jumping bit divider function, including oil inlet body, oil inlet P and oil return inlet T are provided on the oil inlet body, multiple work valve blocks are successively parallel on the oil inlet body, the outermost work valve block is connected with dividing control valve, dividing control valve includes valve body, valve rod is installed in valve body, it is equipped in the inner cavity of valve rod and jumps position regulating device, valve stem end is equipped with the holding screw for blocking its inner cavity, rod positioning device is installed between valve rod and end cap between holding screw and jump position regulating device, valve rod resetting apparatus is installed between holding screw and rod positioning device；This multi-way valve is compact-sized, mitigates weight, saves the pipeline between multi-way valve and distributor, be easily installed arrangement and maintenance；It jumps position regulating device and eliminates the unequal problem of oil return back pressure effect area in valve rod assembly system, have secondary pressure so that valve rod is set in strong raise-position and jump position automatically, it is simple and reliable.
Description
Technical field
The utility model relates to a kind of multi-way valve more particularly to a kind of multi-way valves used on tractor.
Background technique
The control element of current tractor hydraulic system is by C mouthfuls of the hydraulic multitandem valve of Figure 10 and P mouthfuls of distributor of Figure 11
Tandem compound forms.The control system volume of multi-way valve and distributor composition is big, and mounting arrangements are complicated, it has not been convenient to safeguard.At present
The strong reduction of speed degree of control tractor lifting mechanism is the control stick angular compliance hair that distributor shown in Figure 11 is pushed by operator
Motivation revolving speed is realized, since the distributor of each producer is different, to the skill requirement of operator high.Divide shown in Figure 11
The valve rod assembly system of orchestration valve rod and its resetting apparatus composition protrudes into the end cap of left end, is sealing between valve rod and valve body,
Left end end cap cavity is communicated with its back oil road, is sealed between end cap and valve body by sealing element.In the end cap cavity of the left side, effect
The area that area on the left of valve rod assembly system is greater than right side valve rod assembly system will be to valve rod if oil return has back pressure
A thrust to the right is generated, causes valve rod to move right, makes valve rod automatic reverse, controllability is poor, and safety is poor, is easy
Generation accident.
Distributor shown in Figure 12 increases balance guide rod in valve rod assembly system, eliminates the influence of back pressure, but its
Internal structure is excessively complicated, and part difficulty of processing is big, and reliability is not high.Distributor currently on the market without check valve,
There is phenomenon of nodding when strong liter, there are security risks.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of collection that is compact-sized, being easily installed arrangement and maintenance
At the automatic used with tractor multi-way valve for jumping bit divider function.
In order to solve the above technical problems, the technical solution of the utility model is: integrated automatic jump bit divider function is dragged
Machine drawing multi-way valve, including oil inlet body, are provided with oil inlet P and oil return inlet T on the oil inlet body, on the oil inlet body successively simultaneously
Multiple work valve blocks are associated with, the outermost work valve block is connected with dividing control valve, and the dividing control valve includes valve body,
Actuator port A, actuator port B, oil inlet oil duct P and oil return oil duct T, one end of the valve body is provided on the valve body to be equipped with
End cap and the other end are equipped with pressing plate, valve rod are equipped in the valve body, the valve rod is through the valve body and institute is protruded into one end
It states in end cap, the other end is pierced by from the pressing plate；
The oil duct B being connected to the actuator port B is provided in the valve body, be connected to the oil inlet P described in into
Oil duct P, the oil return oil duct T being connected to the oil return inlet T, are provided between the oil inlet oil duct P and the oil duct B
The No.1 oil duct and No. two oil ducts of the setting of valve rod described in ring, are additionally provided with seven be connected to the actuator port A in the valve body
Number oil duct, is equipped with check valve, the No.1 oil duct and No. seven oil ducts between No. two oil ducts and the oil inlet oil duct P
Between hydraulic lock is installed, one-way throttle valve is installed between No. seven oil ducts and the actuator port A；
It is equipped in the inner cavity of the valve rod and jumps position regulating device, the valve stem end is equipped with for blocking its inner cavity
Holding screw is equipped between the holding screw and the valve rod and the end cap jumped between the regulating device of position
Rod positioning device is equipped with valve rod resetting apparatus between the holding screw and the rod positioning device.
As a kind of perferred technical scheme, the jump position regulating device includes the jump position pressure regulation being embedded in the valve rod
Valve pocket, the jump position, which adjusts to be equipped in valve pocket, jumps position adjusting screw, and the jump position adjusts screw and fills towards valve rod positioning
It sets to be slidably fitted in the jump position pressure regulation valve pocket of side and jumps position damping slide valve, the position of jumping adjusts the described of the screw other side
It jumps to be sequentially installed in position pressure regulation valve pocket and jumps position pressure spring and jump position spool, jump position pressure regulator valve, which is put on, is provided with oil pocket company
Through-hole, the tip for jumping position spool are pressed into the oil pocket intercommunicating pore by the jump position pressure spring, are arranged on the valve rod
No. three oil pockets for having radial distribution and being connected to the oil pocket intercommunicating pore are provided on the valve rod and are connected to No. three oil pockets
Radial hole a, sealing element is installed between the jump position pressure regulation valve pocket and the valve rod；Setting in the jump position pressure regulation valve pocket
There are No. four oil pockets, is provided with the damping for being connected to No. four oil pockets and the rod positioning device on the jump position damping slide valve
Hole.
As a kind of perferred technical scheme, the rod positioning device include be sleeved on the valve rod and the end cap it
Between positioning sleeve, one end of the positioning sleeve is resisted against on the valve body, and the other end of the positioning sleeve abuts against the valve rod
Resetting apparatus；Be set side by side on the positioning sleeve there are two ball groove is positioned, be circumferentially equipped on the valve rod it is multiple with it is described fixed
The positioning ball of position ball groove cooperation is equipped with the positioning cone valve for compressing the positioning ball, the positioning cone valve in the valve rod
Valve rod retaining spring is installed between the holding screw；It is provided in the valve rod positioned at the jump position regulating device and institute
No. five oil pockets between positioning cone valve are stated, No. six oil pockets are provided between the positioning cone valve and the holding screw；The valve
The radial hole b being connected to No. five oil pockets is provided on bar；
First sealing ring, the other end of the positioning sleeve and institute are installed between one end of the positioning sleeve and the valve body
State the second sealing ring being equipped on the outside of the positioning ball groove between valve rod, the end of the valve rod and the holding screw
Between third sealing ring is installed.
As a kind of perferred technical scheme, the positioning cone valve includes that taper end portion determines towards the jump position regulating device
Axis is circumferentially distributed on the outer surface of the damping body integrally formed with damping body in position cone, the thick end of the positioning centrum
To the damping slot of extension, the damping slot is connected to No. five oil pockets and No. six oil pockets.
As a kind of perferred technical scheme, the free end of the damping body, which is provided with, gos deep into the valve rod retaining spring
Interior locating rod.
As a kind of perferred technical scheme, the valve rod resetting apparatus includes that one end is sleeved on the holding screw outer end
First spring base in portion, the inner end of the holding screw are set with second spring seat, are set with both ends on the holding screw
Bear against the valve rod reset spring on first spring base and second spring seat.
As a kind of perferred technical scheme, the check valve includes the one-way valve seat being mounted on the valve body, described
It include the nonreturn valve core being equipped with for blocking No. two oil ducts and the oil inlet oil duct P, the check valve in one-way valve seat
Check valve return spring is installed between core and the one-way valve seat.
As a kind of perferred technical scheme, the hydraulic lock includes the hydraulic lock shell being mounted on the valve body, institute
It states hydraulic lock shell and is each passed through the No.1 oil duct and No. seven oil ducts, hydraulic locking-valve is installed in the hydraulic lock shell
Core is equipped with hydraulic lock return spring, the hydraulic lock between the hydraulic lock spool and the closure end of the hydraulic lock shell
Lock core heading through the hydraulic lock shell is installed between spool and the valve rod；The hydraulic lock spool with it is described hydraulic
The annular chamber for being connected to the No.1 oil duct and No. seven oil ducts is provided between lock shell.
As a kind of perferred technical scheme, the one-way throttle valve includes the one-way throttle valve being mounted on the valve body
, adjusting screw rod is installed in the one-way throttle valve seat, the free end of the adjusting screw rod is equipped with for blocking the work
The one-way throttle spool for making hydraulic fluid port A and No. seven oil ducts, pacifies between the one-way throttle spool and the one-way throttle valve seat
Equipped with one-way throttle return spring.
As a kind of perferred technical scheme, the free end of the adjusting screw rod is equipped with for preventing the one-way throttle
The axle elastic spring that spool falls off.
By adopting the above-described technical solution, the integrated automatic used with tractor multi-way valve for jumping bit divider function, including into
Oil body is provided with oil inlet P and oil return inlet T on the oil inlet body, multiple work valve blocks is successively parallel on the oil inlet body, most
The work valve block in outside is connected with dividing control valve, and the dividing control valve includes valve body, is provided with work on the valve body
Make hydraulic fluid port A, actuator port B, oil inlet oil duct P and oil return oil duct T, one end of the valve body is equipped with end cap and the other end is equipped with
Pressing plate, is equipped with valve rod in the valve body, and the valve rod is through the valve body and one end is protruded into the end cap, the other end is from institute
It states and is pierced by pressing plate；It is provided with the oil duct B being connected to the actuator port B in the valve body, is connected to the oil inlet P
The oil inlet oil duct P, the oil return oil duct T being connected to the oil return inlet T, between the oil inlet oil duct P and the oil duct B
It is provided with the No.1 oil duct and No. two oil ducts of the setting of valve rod described in ring, is additionally provided in the valve body and connects with the actuator port A
No. seven logical oil ducts are equipped with check valve, the No.1 oil duct and described seven between No. two oil ducts and the oil inlet oil duct P
Hydraulic lock is installed between number oil duct, one-way throttle valve is installed between No. seven oil ducts and the actuator port A；The valve
It is equipped in the inner cavity of bar and jumps position regulating device, the valve stem end is equipped with the holding screw for blocking its inner cavity, is located at
Rod positioning device is installed between the holding screw and the valve rod and the end cap jumped between the regulating device of position,
Valve rod resetting apparatus is installed between the holding screw and the rod positioning device；This multi-way valve can be any according to demand
Work in combination valve block, it is compact-sized, mitigate weight, save the pipeline between multi-way valve and distributor, be easily installed arrangement and
Maintenance；It rod positioning device and jumps position regulating device and eliminates in valve rod assembly system that oil return back pressure effect area is unequal to ask
Topic has secondary pressure and jumps position automatically so that valve rod is set in strong raise-position, simple and reliable；One-way throttle valve is convenient for strong reduction of speed degree
Control reduces the skill requirement to operator；Check valve can thoroughly eliminate the phenomenon of nodding at strong liter, increase safe and reliable
Property.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the bottom view of the utility model embodiment；
Fig. 3 is B-B direction cross-sectional view in Fig. 1；
Fig. 4 be in Fig. 1 C-C to cross-sectional view；
Fig. 5 be in Fig. 2 A-A to neutral position cross-sectional view；
Fig. 6 is the cross-sectional view that the strong raise-position of the utility model embodiment is set；
Fig. 7 is the cross-sectional view that the strong demotion of the utility model embodiment is set；
Fig. 8 is the cross-sectional view of the utility model embodiment floating position；
Fig. 9 is the hydraulic schematic diagram of the utility model embodiment；
Figure 10 is the hydraulic multitandem valve structural schematic diagram of the prior art；
Figure 11 is a kind of dispensing arrangement schematic diagram in the prior art；
Figure 12 is another dispensing arrangement schematic diagram in the prior art；
In figure: 11- oil inlet body；12- work valve block；13- dividing control valve；14- check valve；15- hydraulic lock；16- is unidirectional
Throttle valve；17- actuator port A；18- actuator port B；21- valve body；22- end cap；23- pressing plate；24- valve rod；25- clamp screw
Nail；The first sealing ring of 26-；The second sealing ring of 27-；28- third sealing ring；31- oil duct B；32- oil inlet oil duct P；33- oil return oil
Road T；34- No.1 oil duct；No. bis- oil ducts of 35-；No. seven oil ducts of 36-；41- jumps position pressure regulation valve pocket；42- jumps position and adjusts screw； 43-
It jumps position and damps slide valve；44- jumps position pressure spring；45- jumps position spool；No. tri- oil pockets of 46-；47- radial hole a；No. tetra- oil of 48-
Chamber；49- damping hole；51- positioning sleeve；52- positions ball groove；53- positions ball；541- positions cone；542- damping body；543- damping
Slot；544- locating rod；55- valve rod retaining spring；No. five oil pockets of 56-；No. six oil pockets of 57-；58- radial hole b；The first bullet of 61-
Spring abutment；62- second spring seat；63- valve rod reset spring；71- one-way valve seat；72- nonreturn valve core；73- check valve return bullet
Spring；The hydraulic lock shell of 81-；82- hydraulic lock spool；83- hydraulic lock return spring；The heading of 84- lock core；85- annular chamber；91- is mono-
To throttle valve seat；92- adjusting screw rod；93- one-way throttle spool；94- one-way throttle return spring；95- axle elastic spring.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is further described.In the following detailed description, only pass through
Bright mode describes certain exemplary embodiments of the utility model.Undoubtedly, those skilled in the art can be with
It recognizes, it, can be with a variety of different modes to described without departing from the spirit and scope of the utility model
Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim
Range.
As shown in Figure 1, Figure 2 and shown in Fig. 9, the automatic used with tractor multi-way valve for jumping bit divider function, including oil inlet body are integrated
11, oil inlet P and oil return inlet T are provided on the oil inlet body 11, and multiple work valve blocks are successively parallel on the oil inlet body 11
12, there are three the valve blocks 12 that works, the outermost work valve block 12 to be connected with dividing control valve 13 for setting in present embodiment,
The dividing control valve 13 include valve body 21, it is described divide on valve body 21 be provided with actuator port A17, actuator port B18, oil inlet oil
Road P32 and oil return oil duct T33, one end of the valve body 21 is equipped with end cap 22 and the other end is equipped with pressing plate 23, such as Fig. 4 institute
Show, valve rod 24 is installed, the valve rod 24 is through the valve body 21 and one end is protruded into the end cap 22, is another in the valve body 21
One end is pierced by from the pressing plate 23；
As shown in Fig. 3, Fig. 4 and Fig. 5, be provided in the valve body 21 the oil duct B31 being connected to the actuator port B18,
The oil inlet oil duct P32 being connected to the oil inlet P, the oil return oil duct T33 being connected to the oil return inlet T, described
The No.1 oil duct 34 and No. two oil ducts 35 of the setting of valve rod 24 described in ring are provided between oil inlet oil duct P32 and the oil duct B31,
Be additionally provided with No. seven oil ducts 36 being connected to the actuator port A17 in the valve body 21, No. two oil ducts 35 and it is described into
Check valve 14 is installed between oil duct P32, hydraulic lock 15 is installed between the No.1 oil duct 34 and No. seven oil ducts 36,
One-way throttle valve 16 is installed between No. seven oil ducts 36 and the actuator port A17；
It is equipped in the inner cavity of the valve rod 24 and jumps position regulating device, 24 end of valve rod is equipped with for blocking in it
The holding screw 25 of chamber, positioned at the holding screw 25 and the valve rod 24 and the end cap jumped between the regulating device of position
Rod positioning device is installed between 22, valve rod is installed between the holding screw 25 and the rod positioning device and resets dress
It sets.
The jump position regulating device includes the jump position pressure regulation valve pocket 41 being embedded in the valve rod 24, jump position regulating valve
It is equipped in set and jumps position adjusting screw 42, the jump position adjusts the jump position of the screw 42 towards the rod positioning device side
It is slidably fitted in pressure regulation valve pocket 41 and jumps position damping slide valve 43, the jump position pressure regulator valve jumped position and adjust 42 other side of screw
It is sequentially installed in set 41 and jumps position pressure spring 44 and jump position spool 45, oil pocket connection is provided on the jump position pressure regulation valve pocket 41
Hole, the tip for jumping position spool 45 is pressed into the oil pocket intercommunicating pore by jump position pressure spring 44, on the valve rod 24
No. three oil pockets 46 for being provided with radial distribution and being connected to the oil pocket intercommunicating pore are provided with and described No. three on the valve rod 24
The radial hole a47 that oil pocket 46 is connected to, is equipped with sealing element between the jump position pressure regulation valve pocket 41 and the valve rod 24；The jump
It is provided with No. four oil pockets 48 in position pressure regulation valve pocket 41, is provided with connection 48 He of No. four oil pockets on the jump position damping slide valve 43
The damping hole 49 of the rod positioning device.It is equipped between the jump position pressure regulation valve pocket 41 and the valve rod 24 and jumps position sealing
Circle.
The rod positioning device includes the positioning sleeve 51 being sleeved between the valve rod 24 and the end cap 22, described
One end of positioning sleeve 51 is resisted against on the valve body 21, and the other end of the positioning sleeve 51 abuts against the valve rod resetting apparatus；
It is set side by side on the positioning sleeve 51 there are two ball groove 52 is positioned, the multiple and positioning ball is circumferentially installed on the valve rod 24
The positioning ball 53 that slot 52 cooperates is equipped with the positioning cone valve for compressing the positioning ball 53, the positioning in the valve rod 24
Valve rod retaining spring 55 is installed between cone valve and the holding screw 25；It is provided in the valve rod 24 positioned at the jump position
No. five oil pockets 56 between regulating device and the positioning cone valve, are provided between the positioning cone valve and the holding screw 25
No. six oil pockets 57；The radial hole b58 being connected to No. five oil pockets 56 is provided on the valve rod 24.The positioning cone valve packet
Taper end portion is included towards the positioning cone 541 for jumping position regulating device, the thick end of the positioning centrum is integrally formed with damping
Body 542, axially extending damping slot 543 is circumferentially distributed on the outer surface of the damping body 542, and the damping slot 543 is connected to
No. five oil pockets 56 and No. six oil pockets 57.The free end of the damping body 542, which is provided with, gos deep into the valve rod positioning
Locating rod 544 in spring 55.First sealing ring 26, institute are installed between one end and the valve body 24 of the positioning sleeve 51
The second sealing ring 27 being equipped between the other end of positioning sleeve 51 and the valve rod 24 positioned at 52 outside of positioning ball groove is stated,
Third sealing ring 28 is installed between the end and the holding screw 25 of the valve rod 24.The sealing of first sealing ring 26, second
Circle 27 and third sealing ring 28 form the sealing structure of rod positioning device, and oil return is sealed in No. five oil pockets 56 and No. six oil pockets
In 57.
The sealing structure of the rod positioning device of this multi-way valve effectively by multi-way valve back oil road hydraulic oil and from
The dynamic oil return for jumping position pressure oil is sealed in a small cavity, makes to occur between end cap 22 and valve rod 24 without hydraulic oil, valve rod
24 suffered hydraulic coupling equilibriums everywhere, eliminate the radial thrust that return oil pressure generates valve rod 24, to prevent due to back pressure
The risk of automatic reverse caused by excessively high.Valve rod 24 is set in strong raise-position to be had secondary pressure and jumps position automatically, which simply may be used
It leans on.The valve rod resetting apparatus includes the first spring base 61 that one end is sleeved on 25 outer end of holding screw, the tightening
The inner end of screw 25 is set with second spring seat 62, is set with both ends on the holding screw 25 and bears against described first
Valve rod reset spring 63 on spring base 61 and second spring seat 62.
The check valve 14 includes the one-way valve seat 71 being mounted on the valve body 21, includes in the one-way valve seat 71
Nonreturn valve core 72 for blocking No. two oil ducts 35 and the oil inlet oil duct P32, the nonreturn valve core 72 and institute are installed
It states and check valve return spring 73 is installed between one-way valve seat 71.
The hydraulic lock 15 includes the hydraulic lock shell 81 being mounted on the valve body 21, and the hydraulic lock shell 81 is distinguished
Across the No.1 oil duct 34 and No. seven oil ducts 36, hydraulic lock spool 82 is installed in the hydraulic lock shell 81, it is described
Hydraulic lock return spring 83, the hydraulic locking-valve are installed between hydraulic lock spool 82 and the closure end of the hydraulic lock shell 81
Lock core heading 84 through the hydraulic lock shell 81 is installed between core 82 and the valve rod 24；The hydraulic lock spool 82 with
The annular chamber 85 for being connected to the No.1 oil duct 34 and No. seven oil ducts 36 is provided between the hydraulic lock shell 81.
The one-way throttle valve 16 includes the one-way throttle valve seat 91 being mounted on the valve body 21, the one-way throttle valve
Adjusting screw rod 92 is installed in seat 91, the free end of the adjusting screw rod 92 be equipped with for block the actuator port A17 and
The one-way throttle spool 93 of No. seven oil ducts 36, is installed between the one-way throttle spool 93 and the one-way throttle valve seat 91
There is one-way throttle return spring 94.The free end of the adjusting screw rod 92 is equipped with for preventing the one-way throttle spool 93
The axle elastic spring 95 to fall off.
As shown in Figure 1, being equipped with check valve 14 and valve rod 24 on three work valve blocks 12, and it is respectively arranged actuator port
A17,B；Check valve 14, one-way throttle valve 16, hydraulic lock 15 and valve rod 24 are installed on the valve body 21 of dividing control valve 13,
The left end of valve rod 24 is protruded into end cap 22, and right end is stretched out from pressing plate 23.The valve body 21 passes through four fastening bolts and tight.
As shown in figure 5, valve rod 24 and the outer of holding screw 25 are placed from left to right equipped with the first spring base in end cap 22
61, valve rod reset spring 63, second spring seat 62 and positioning sleeve 51.Valve rod reset spring 63 is in the first spring base 61 and
Between two spring bases 62,61 left side of the first spring base is in contact with end cap 22, the left part of second spring seat 62 and positioning sleeve 51
It is in contact, the right part of positioning sleeve 51 is in contact with valve body 21, and valve rod 24 can move along a straight line in positioning sleeve 51, to compress
Valve rod reset spring 63.Positioning ball groove 52 is respectively arranged in the arranged on left and right sides of positioning sleeve 51.In holding screw 25 and valve rod 24
Left part be equipped with sealing element, between positioning sleeve 51 and valve rod 24 be equipped with sealing element, filled between positioning sleeve 51 and valve body 21
There is sealing element, to guarantee to eliminate back pressure to valve without hydraulic oil in the cavity between end cap 22 and valve rod reset spring 63
The 24 unequal problem of component active area of bar.
As shown in figure 5, it is fixed to be sequentially arranged with valve rod from left to right in axial cavity between holding screw 25 and valve rod 24
Position spring 55, positioning cone valve position ball 53, jump position pressure regulation valve pocket 41, jump position damping slide valve 43, jump position adjusting screw 42, jump position
Pressure spring 44 jumps position spool 45.55 left end of valve rod retaining spring is in contact with holding screw 25, right end and positioning cone valve phase
Contact.Five positioning balls 53 are evenly arranged in the radial hole that valve rod 24 opens up, and are connected with positioning sleeve 51 and positioning cone valve
Touching.It jumps position pressure regulation valve pocket 41 to be embedded in valve rod 24, and sealing element is housed in right end.It is jumping in position pressure regulation valve pocket 41, is jumping position valve
Core 45 adjusts the right end that screw 42 is pressed on jump position pressure regulation valve pocket 41 by jumping position pressure spring 44 by position is jumped, and jumps position spool 45
Control the on-off of No. three oil pockets 46 and No. four oil pockets 48.It jumps position damping slide valve 43 and is equipped with elongated hole, and position pressure regulator valve can jumped
Linear motion in set 41.
As shown in fig. 7, on valve rod 24, it is radially arranged to have radial hole a47 and radial hole b58.Radial hole a47
With No. three 46 normal opens of oil pocket, and it also controls the on-off with No.1 oil duct 34 and oil return T.Radial hole b58 is by No. five oil pockets
56 are connected to oil return T, and No. five oil pockets 56 are connected to No. six oil pockets 57 by the damping slot 543 on positioning cone valve, thus by No. six
Oil pocket 57 is connected to oil return T.
As shown in figure 3, equipped with lock core heading 84 between valve rod 24 and hydraulic lock 15.Hydraulic lock spool 82 controls seven
The on-off of number oil duct 36 and No.1 oil duct 34.One-way throttle valve 16 is housed on the right of actuator port A17.One-way throttle valve seat 91
It is fixed on valve body 21, one-way throttle spool 93 is limited on adjusting screw rod 92 and moves by axle elastic spring 95.Actuator port
A17 is communicated with No. seven oil ducts 36 by the gap between one-way throttle spool 93 and valve body 21, can be by adjusting adjusting screw rod 92
Position control this gap size, to control strong reduction of speed degree.
As shown in figure 4, being equipped with check valve 14 in the center of valve body 21, nonreturn valve core 72 is in contact with valve body 21, controls
The on-off of oil inlet P and No. two oil ducts 35.
A kind of integrated automatic used with tractor multi-way valve for jumping bit divider function is total, and there are three the valve block 12 that works, three work
Valve block 12 is normal tractor multiway valve function, and the distribution of substitution distributor function is connected with positioned at the work valve block of least significant end
Control valve 13.Multi-way valve function repeats no more, and describes the function of dividing control valve 13 emphatically.During dividing control valve 13 1 is shared
Vertical, Qiang Sheng, strong drop, four operating positions of floating.
Neutral position, 24 attonity of valve rod, as shown in figs. 5 and 9, total oil inlet P of hydraulic pump oil outlet and multi-way valve
Connect, by multi-way valve internal galleries, returns to fuel tank from the back oil road and oil return inlet T of 13 valve body 21 of dividing control valve.Due to being
System pressure does not reach setting value, can not open and jump position spool 45, No. three oil pockets 46 and No. four oil pockets 48 are obstructed.Lock core is headed a ball 84
In in the groove of valve rod 24, hydraulic lock spool 82 is not acted, and No.1 oil duct 34 and No. seven oil ducts 36 are obstructed.Valve rod is multiple at this time
Position spring 63 is inelastic to valve rod 24 in original state.
Strong raise-position is set, and valve rod 24 moves downward, as indicated in fig. 6 and fig. 3.Between first spring base 61 and second spring seat 62
Distance reduces, and valve rod reset spring 63 is compressed, and positioning ball 53 is snapped into the left side positioning ball groove 52 of positioning sleeve 51, valve rod
Retaining spring 55 by position cone valve tightly withstand positioning ball 53 so that it is locked to rise location status by force.Lock core heading 84 is by liquid
Pressure locking-valve core 82 opens, and No.1 oil duct 34 is communicated with No. seven oil ducts 36.At this point, oil inlet oil duct P32 and Huis oil in valve body 21
Oil duct T33 is separated, and under action of hydraulic force, nonreturn valve core 72 is opened, and oil inlet oil duct P32 is communicated with No. two oil ducts 35.Liquid
Pressure oil enters No. seven oil ducts 36 through No. two oil ducts 35 and No.1 oil duct 34, one-way throttle spool 93 is pushed up, into working oil
Mouth A17.Meanwhile oil inlet oil duct P32 is communicated through the radial hole a47 on No.1 oil duct 34 and valve rod 24 with No. three oil pockets 46.Oil
Road B31 is communicated with the T oil duct of valve body 21.If valve rod 24 will be consolidated without external force (such as oil pressure variation or artificial external force)
It is scheduled on promotion state.When hand-reset, artificial operation flexible axle pull rod draws to the right valve rod 24, and positioning ball 53 is by from positioning sleeve 51
Positioning ball groove 52 in pull out, valve rod 24 reset.When automatically reseting, oil pressure increases at the oil inlet oil duct P32 in valve body 21, works as oil
When pressure reaches setting value, high pressure oil pushes jump position spool 45 to move downward, and high pressure oil enters No. four oil pockets 48, due to jumping position damping
Slide valve 43 is equipped with damping hole 49, causes No. four 48 pressure of oil pocket much higher than No. five 56 pressure of oil pocket, jump position damp slide valve 43 to
Left movement pushes positioning cone valve to move downward, and positioning ball 53 is fallen out of ball groove under the effect of valve rod reset spring 63, valve rod 24
Stationary state release, valve rod reset spring 63 effect under, valve rod 24 automatically moves right realization reset.Locating cone at this time
Valve will compress positioning ball 53 under the action of valve rod retaining spring 55 again, while damping slide valve 43 in jump position being pushed to transport to the right
It is dynamic.It jumps position spool 45 to reset under the action of jumping position pressure spring 44, one-way throttle spool 93 is in one-way throttle return spring 94
Under the action of reset, hydraulic lock spool 82 hydraulic lock return spring 83 effect under reset, nonreturn valve core 72 is in check valve return
The effect of spring 73 is lower to be resetted.
Strong demotion is set, and valve rod 24 is moved right from neutral position, as shown in Fig. 7 and Fig. 3.First spring base 61 and second
Distance reduces between spring base 62, and valve rod reset spring 63 is compressed, and positioning ball 53 is located at two positioning ball grooves of positioning sleeve 51
Position among 52.Lock core heading 84 opens hydraulic lock spool 82, by actuator port A and No. seven oil ducts 36, No.1 oil duct 34, returns
Oil duct T33 conducting.Oil inlet oil duct P32 of the hydraulic oil through valve body 21, opens nonreturn valve core 72, enters oil through No. two oil ducts 35
Road B31 enters back into actuator port B18；Oil return is from A17 mouthfuls of actuator port through the gap between one-way throttle spool 93 and valve body 21
Oil return oil duct T33 is returned into valve body 21 into No. seven oil ducts 36, then through No.1 oil duct 34, realizes strong drop function.Due to decline
When system oil return pressure be not up to jump position pressure spring 44 preset value, jump position spool 45 be failure to actuate, No. three oil pockets 46 and four
Number oil pocket 48 is obstructed.
Floating position, valve rod 24 are moved right from down position, as shown in Fig. 8 and Fig. 3.First spring base 61 and second
Distance continues to reduce between spring base 62, and valve rod reset spring 63 is compressed, and positioning ball 53 is snapped into the right side ball of positioning sleeve 51
In slot, valve rod retaining spring 55 will position cone valve and tightly withstand positioning ball 53, so that floating position state is locked.Lock core top
Ball 84 opens hydraulic lock spool 82, so that actuator port is communicated with No. seven oil ducts 36, No.1 oil duct 34, oil return oil duct T33.Valve body
21 oil inlet oil duct P32 is communicated through nonreturn valve core 72 with No. two oil ducts 35, and oil duct B31 penetrates through No. two oil ducts 35 and actuator port
B18 realizes float function.System pressure when due to floating is not up to the preset value for jumping position pressure spring 44, jumps position spool 45
It is failure to actuate, No. three oil pockets 46 and No. four oil pockets 48 are obstructed.
The technical program has an advantage that
1, multi-way valve be integrated with distributor function and can according to demand any combination work valve block 12, it is compact-sized, subtract
Light weight saves the pipeline between multi-way valve and distributor, is easily installed arrangement and maintenance.
2, due to using positioning sleeve 51, positioning cone valve, valve rod retaining spring 55, positioning ball 53, jumping position spool 45, jump position
Screw 42 is adjusted, position pressure spring 44 is jumped, jumps the jump position regulating device that the components such as position damping slide valve 43 are constituted, eliminates valve rod 24
The unequal problem of oil return back pressure effect area on component system has secondary pressure and jumps automatically so that valve rod 24 is set in strong raise-position
Position, it is simple and reliable.
3, multi-way valve integrates one-way throttle valve 16, and strong reduction of speed degree reduces the skill requirement to operator convenient for control.
4, the oil return of secondary pressure oil is sealed in one well by the sealing element being arranged inside valve rod 24 and on positioning sleeve 51
In a small cavity, reduces the risk of hydraulic oil leakage, eliminate the radial thrust that return oil pressure generates valve rod.
5,13 integrated check valve 14 of dividing control valve of distributor function is substituted, the phenomenon of nodding when strong rise thoroughly is eliminated,
Increase security reliability.
This multi-way valve is integrated with the function of distributor, and very good solution system back pressure causes asking for 24 automatic reverse of valve rod
Topic, and its sealed reliable reduce the risk of hydraulic oil leakage.Integrated one-way throttle valve 16 can be convenient the strong reduction of speed of control
Degree reduces the skill requirement to operator.12 integrated check valve 14 of work valve block of distributor function is substituted, strong rise thoroughly is eliminated
When phenomenon of nodding, increase handling safety.Multi-way valve is compact-sized and can be according to customer demand any combination work valve block
12 the piece number, alleviates weight, saves pipeline, is easily installed arrangement and maintenance, and then reduce the use cost of user.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (10)
1. the integrated automatic used with tractor multi-way valve for jumping bit divider function, including oil inlet body, be provided on the oil inlet body into
Hydraulic fluid port P and oil return inlet T are successively parallel with multiple work valve blocks on the oil inlet body, it is characterised in that: the outermost work
Valve block is connected with dividing control valve, and the dividing control valve includes valve body, and actuator port A, working oil are provided on the valve body
Mouth B, oil inlet oil duct P and oil return oil duct T, one end of the valve body is equipped with end cap and the other end is equipped with pressing plate, the valve body
Valve rod is inside installed, the valve rod is through the valve body and one end is protruded into the end cap, the other end is pierced by from the pressing plate；
The oil duct B being connected to the actuator port B, the oil inlet being connected to oil inlet P oil are provided in the valve body
Road P, the oil return oil duct T being connected to the oil return inlet T, are provided with ring institute between the oil inlet oil duct P and the oil duct B
The No.1 oil duct and No. two oil ducts of valve rod setting are stated, is additionally provided with No. seven oil being connected to the actuator port A in the valve body
Road is equipped with check valve, between the No.1 oil duct and No. seven oil ducts between No. two oil ducts and the oil inlet oil duct P
Hydraulic lock is installed, one-way throttle valve is installed between No. seven oil ducts and the actuator port A；
It is equipped in the inner cavity of the valve rod and jumps position regulating device, the valve stem end is equipped with the tightening for blocking its inner cavity
Screw is equipped with valve rod between the holding screw and the valve rod and the end cap jumped between the regulating device of position
Positioning device is equipped with valve rod resetting apparatus between the holding screw and the rod positioning device.
2. the integrated automatic used with tractor multi-way valve for jumping bit divider function as described in claim 1, it is characterised in that: described
Jumping position regulating device includes the jump position pressure regulation valve pocket being embedded in the valve rod, and the jump position, which adjusts to be equipped in valve pocket, jumps position tune
Save screw, jumps position adjusting screw in the jump position pressure regulation valve pocket of the rod positioning device side towards being slidably fitted with
It jumps position and damps slide valve, be sequentially installed in the jump position pressure regulation valve pocket for jumping the position adjusting screw other side and jump position pressure spring
With jump position spool, jump position pressure regulator valve, which is put on, is provided with oil pocket intercommunicating pore, and the tip for jumping position spool is by jump position tune
Pressing spring is pressed into the oil pocket intercommunicating pore, radial distribution is provided on the valve rod and is connected to the oil pocket intercommunicating pore three
Number oil pocket is provided with the radial hole a being connected to No. three oil pockets, the jump position pressure regulation valve pocket and the valve on the valve rod
Sealing element is installed between bar；It is provided with No. four oil pockets in the jump position pressure regulation valve pocket, is provided on the jump position damping slide valve
It is connected to the damping hole of No. four oil pockets and the rod positioning device.
3. the integrated automatic used with tractor multi-way valve for jumping bit divider function as described in claim 1, it is characterised in that: described
Rod positioning device includes the positioning sleeve being sleeved between the valve rod and the end cap, and one end of the positioning sleeve is resisted against institute
It states on valve body, the other end of the positioning sleeve abuts against the valve rod resetting apparatus；There are two being set side by side on the positioning sleeve
Ball groove is positioned, multiple positioning balls with the positioning ball groove cooperation are circumferentially installed on the valve rod, are equipped in the valve rod
For compressing the positioning cone valve of the positioning ball, valve rod positioning bullet is installed between the positioning cone valve and the holding screw
Spring；No. five oil pockets being provided in the valve rod between the jump position regulating device and the positioning cone valve, the positioning
No. six oil pockets are provided between cone valve and the holding screw；The radial direction being connected to No. five oil pockets is provided on the valve rod
Aperture b；
First sealing ring, the other end of the positioning sleeve and the valve are installed between one end of the positioning sleeve and the valve body
The second sealing ring being equipped between bar on the outside of the positioning ball groove, between the end of the valve rod and the holding screw
Third sealing ring is installed.
4. the integrated automatic used with tractor multi-way valve for jumping bit divider function as claimed in claim 3, it is characterised in that: described
Positioning cone valve includes taper end portion towards the positioning cone for jumping position regulating device, and the thick end of the positioning cone is integrally formed
There is damping body, axially extending damping slot, the damping slot connection described five are circumferentially distributed on the outer surface of the damping body
Number oil pocket and No. six oil pockets.
5. the integrated automatic used with tractor multi-way valve for jumping bit divider function as claimed in claim 4, it is characterised in that: described
The free end of damping body is provided with the locating rod goed deep into the valve rod retaining spring.
6. the integrated automatic used with tractor multi-way valve for jumping bit divider function as described in claim 1, it is characterised in that: described
Valve rod resetting apparatus includes the first spring base that one end is sleeved on the holding screw outer end, the inner end of the holding screw
It is set with second spring seat, both ends are set on the holding screw and are born against in first spring base and second spring seat
On valve rod reset spring.
7. the integrated automatic used with tractor multi-way valve for jumping bit divider function as described in claim 1, it is characterised in that: described
Check valve includes the one-way valve seat being mounted on the valve body, includes being equipped with for blocking described No. two in the one-way valve seat
The nonreturn valve core of oil duct and the oil inlet oil duct P, is equipped with check valve return between the nonreturn valve core and the one-way valve seat
Spring.
8. the integrated automatic used with tractor multi-way valve for jumping bit divider function as described in claim 1, it is characterised in that: described
Hydraulic lock includes the hydraulic lock shell being mounted on the valve body, and the hydraulic lock shell is each passed through the No.1 oil duct and institute
No. seven oil ducts are stated, hydraulic lock spool, the hydraulic lock spool and the hydraulic lock shell are installed in the hydraulic lock shell
It blocks and hydraulic lock return spring is installed between end, be equipped between the hydraulic lock spool and the valve rod through described hydraulic
The lock core of lock shell is headed a ball；It is provided between the hydraulic lock spool and the hydraulic lock shell for being connected to the No.1 oil duct
With the annular chamber of No. seven oil ducts.
9. the integrated automatic used with tractor multi-way valve for jumping bit divider function as described in claim 1, it is characterised in that: described
One-way throttle valve includes the one-way throttle valve seat being mounted on the valve body, is equipped with adjusting spiral shell in the one-way throttle valve seat
Bar, the free end of the adjusting screw rod are equipped with the one-way throttle valve for blocking the actuator port A and No. seven oil ducts
Core is equipped with one-way throttle return spring between the one-way throttle spool and the one-way throttle valve seat.
10. the integrated automatic used with tractor multi-way valve for jumping bit divider function as claimed in claim 9, it is characterised in that: institute
The free end for stating adjusting screw rod is equipped with axle elastic spring for preventing the one-way throttle spool from falling off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821816582.0U CN208918951U (en) | 2018-11-05 | 2018-11-05 | The integrated automatic used with tractor multi-way valve for jumping bit divider function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821816582.0U CN208918951U (en) | 2018-11-05 | 2018-11-05 | The integrated automatic used with tractor multi-way valve for jumping bit divider function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208918951U true CN208918951U (en) | 2019-05-31 |
Family
ID=66711614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821816582.0U Withdrawn - After Issue CN208918951U (en) | 2018-11-05 | 2018-11-05 | The integrated automatic used with tractor multi-way valve for jumping bit divider function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208918951U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162979A (en) * | 2018-11-05 | 2019-01-08 | 青州博信华盛液压科技有限公司 | The integrated automatic used with tractor multi-way valve for jumping bit divider function |
| CN111692153A (en) * | 2020-06-18 | 2020-09-22 | 北京中科原动力科技有限公司 | Multi-way valve electric control system of unmanned tractor |
-
2018
- 2018-11-05 CN CN201821816582.0U patent/CN208918951U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162979A (en) * | 2018-11-05 | 2019-01-08 | 青州博信华盛液压科技有限公司 | The integrated automatic used with tractor multi-way valve for jumping bit divider function |
| CN109162979B (en) * | 2018-11-05 | 2023-12-05 | 青州博信华盛液压科技有限公司 | Multi-way valve for tractor integrating automatic jump distributor function |
| CN111692153A (en) * | 2020-06-18 | 2020-09-22 | 北京中科原动力科技有限公司 | Multi-way valve electric control system of unmanned tractor |
| CN111692153B (en) * | 2020-06-18 | 2023-11-03 | 北京中科原动力科技有限公司 | Unmanned tractor multiway valve electric control system |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190531 Effective date of abandoning: 20231205 |