CN106246761A - A kind of two changements for steering cluth - Google Patents
A kind of two changements for steering cluth Download PDFInfo
- Publication number
- CN106246761A CN106246761A CN201610799595.0A CN201610799595A CN106246761A CN 106246761 A CN106246761 A CN 106246761A CN 201610799595 A CN201610799595 A CN 201610799595A CN 106246761 A CN106246761 A CN 106246761A
- Authority
- CN
- China
- Prior art keywords
- oil
- spool
- hydraulic
- steering cluth
- fluid port
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0221—Valves for clutch control systems; Details thereof
Abstract
The present invention relates to hydraulic power technical field, a kind of two changements for steering cluth, including valve body and the gland being sealed in valve body two ends, in described valve body, be provided with two groups of control valves.Two changements for steering cluth of the present invention are after complete machine starts, hydraulic system is to left clutch and right clutch fuel feeding, left clutch and right clutch is allowed to keep linkage, requirement is turned to according to steering cluth, guide's hydraulic oil is pumped in left beam hanger excessively or right beam hanger excessively, spool opposite valve seat moves, thus the confession obtaining steering cluth fluid is broken, in motor process, the hydraulic pressure oil mass needed is few, it is swift in motion, accurate positioning, reliability is high, service life is long, make the layout more freedom and flexibility of the steering tiller of bull-dozer, hydraulic pressure for steering cluth, electro-hydraulic and a kind of effective technical scheme of offer is be provided.
Description
Technical field
The present invention relates to Hydraulic Machinery technical field, it is adaptable to engineering machinery, building machinery, agriculture and forestry machinery and vehicle
Deng by the steering of steering cluth, it is particularly well-suited to the steering of bull-dozer steering cluth.
Background technology
The commutation actuator of existing bull-dozer steering cluth is generally rigid link mechanism, such steering mechanism
Transmission " node " is many, and the working place of steering tiller is relatively big, and articulation mechanism is many, thus causes equipment adjustment difficulty big, and transmission is imitated
Rate is relatively low, and relatively " weight ", frequently turning in operation easily causes the anxiety of operator with tired to handling maneuver.The operation work of bull-dozer
Condition is severe, and the wear extent of linkage oscillating bearing is big, when adjusting not in time or safeguarding not in place, happen occasionally turn to less than
Position, causes decline rapidly the service life of steering cluth or the fault such as damage, the location of existing steering cluth steering
Mechanism, according to the difference of maneuverability pattern, can be divided into linkage, hydraulic pressure with automatically controlled etc., and these three maneuverability pattern typically can not be simple
Ground is integrated.
Summary of the invention
It is an object of the invention to the defect overcoming prior art to exist, it is provided that a kind of two commutations for steering cluth
Mechanism, makes the steering situation of steering cluth can use electronics, hydraulic control mode completely, for steering cluth hydraulic pressure,
Electro-hydraulic and a kind of effective technical scheme of offer is be provided.
In order to realize the purpose of the present invention, be the technical scheme is that
Two changements for steering cluth of the present invention include valve body and are sealed in the gland at valve body two ends, institute
Being provided with two groups of control valves in stating valve body, described control valve includes valve seat and spool, and described valve seat is sequentially provided with oil-in, hydraulic control
Hydraulic fluid port and oil-out, described oil-in connects with the hydraulic fluid port that send of hydraulic system, and described oil-out connects with the oil return opening of hydraulic system
Logical, described hydraulic control hydraulic fluid port is used for controlling steering cluth deciliter, and be slidably installed in the die cavity of described valve seat described spool, described valve
The outer circumference surface of core is provided with the first connectivity slot and the second connectivity slot, and described first connectivity slot is used for connecting described oil-in and liquid
Control hydraulic fluid port, described second connectivity slot is used for connecting described hydraulic control hydraulic fluid port and oil-out, and described spool is driven by pressure oil and controls to turn
Disconnected to the confession of clutch fluid.
One end of valve seat of the present invention is fixed on described gland, and the other end of described valve seat was provided with beam hanger, institute
The oil passage of crossing stating beam hanger connects with the die cavity of described valve seat, when the pressure of the described pressure oil crossed in beam hanger is more than described liquid
When sending hydraulic fluid port pressure of pressure system, described spool moves towards described oil-in until described spool top is to pressure under differential pressure action
Covering, the most described first connectivity slot connects described oil-in and hydraulic control hydraulic fluid port, when the pressure of the described pressure oil crossed in beam hanger
Less than described hydraulic system when sending hydraulic fluid port pressure, described spool under differential pressure action towards the motion of described oil-out until described
Spool top is on the described end face crossing beam hanger, and the most described second connectivity slot connects described hydraulic control hydraulic fluid port and oil-out.
Spool of the present invention is provided with the first spring away from described one end crossing beam hanger, and described spool is at described first spring
Effect under be resisted against described cross beam hanger end.
Valve seat of the present invention includes the sliding seat fixed the fixing seat being connected with gland and coordinate with valve body slides, described
Spool is slidably mounted in described fixing seat near one end of gland, the other end of described spool be positioned at described sliding seat and
Fixing with described sliding seat and be connected, described oil-in and hydraulic control hydraulic fluid port are arranged on described fixing seat, and described oil-out is arranged on
On described sliding seat, described first connectivity slot is positioned at described fixing seat, and described second connectivity slot is positioned at described sliding seat.
Being provided with the second spring in second connectivity slot of the present invention, one end of described second spring is resisted against described sliding seat
On, the other end of described second spring is resisted against on the trough rim of described second connectivity slot.
Control valve described in the present invention two groups is respectively left control valve and right control valve, and described steering cluth includes and left control
Left clutch that valve processed connects and the right clutch that is connected with right control valve.
Two changements for steering cluth of the present invention provide the benefit that: being used for of the present invention turns to clutch
Two changements of device are after complete machine starts, and hydraulic system, to left clutch and right clutch fuel feeding, allows left clutch and the right side
Clutch keeps linkage, according to the requirement that turns to of steering cluth, pumps into guide's hydraulic oil, valve in left beam hanger excessively or right beam hanger excessively
Core opposite valve seat moves, thus the confession obtaining steering cluth fluid is disconnected, and in motor process, the hydraulic pressure oil mass of needs is few, dynamic
Making rapidly, accurate positioning, reliability is high, and service life is long, makes the layout more freedom and flexibility of the steering tiller of bull-dozer, for turning
To the hydraulic pressure of clutch, electro-hydraulic and automatically control a kind of effective technical scheme of offer.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is two the changement structural representations for steering cluth in the embodiment of the present invention one；
Fig. 2 is two the changement structural representations for steering cluth in the embodiment of the present invention two；
Fig. 3 is two the changement structural representations for steering cluth in the embodiment of the present invention three.
Wherein: valve body 1；Gland 2；Left valve seat 31, left spool 32, left beam hanger 33 excessively；Valve seat 41, right spool 42, right the most oily
Bar 43；First spring 5；Fixing seat 61, sliding seat 62；Second spring 7.
Detailed description of the invention
In describing the invention, it is to be understood that term " radially ", " axially ", " on ", D score, " top ", " end ",
Orientation or the position relationship of the instruction such as " interior ", " outward " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the present invention and simplify description rather than instruction or imply that the device of indication or element must have specific orientation, with specific
Azimuth configuration and operation, be therefore not considered as limiting the invention.In describing the invention, except as otherwise noted,
" multiple " are meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " is set
Put ", " connection " should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary.For the ordinary skill in the art, can basis
Concrete condition understands above-mentioned term concrete meaning in the present invention.
Embodiment one:
As it is shown in figure 1, two changements for steering cluth of the present embodiment include valve body 1 and are sealed in valve body
The gland 2 at 1 two ends, is provided with two groups of control valves in valve body 1, control valve includes valve seat and spool, valve seat is sequentially provided with oil-in,
Hydraulic control hydraulic fluid port and oil-out, oil-in connects with the hydraulic fluid port that send of hydraulic system, and oil-out connects with the oil return opening of hydraulic system, liquid
Control hydraulic fluid port is used for controlling steering cluth deciliter, and be slidably installed in the die cavity of valve seat spool, and the outer circumference surface of spool is provided with the
One connectivity slot and the second connectivity slot, the first connectivity slot is used for connecting oil-in and hydraulic control hydraulic fluid port, and the second connectivity slot is used for connecting liquid
Control hydraulic fluid port and oil-out, spool is driven the confession controlling steering cluth fluid disconnected by pressure oil.
Spool in the present embodiment is to be driven by the guide's hydraulic oil crossed in beam hanger, and specifically, one end of valve seat is fixed on
On gland 2, the other end of valve seat was provided with beam hanger, and the oil passage of crossing crossing beam hanger connects with the die cavity of valve seat, has served as in beam hanger
The pressure of pressure oil more than when sending hydraulic fluid port pressure of hydraulic system, spool under differential pressure action towards oil-in motion until valve
Core top is on gland 2, and now the first connectivity slot connection oil-in and hydraulic control hydraulic fluid port, the pressure having served as the pressure oil in beam hanger is less than
When sending hydraulic fluid port pressure of hydraulic system, spool moves until the end face of beam hanger was arrived on spool top towards oil-out under differential pressure action
On, now the second connectivity slot connection hydraulic control hydraulic fluid port and oil-out.
Two groups of control valves in the present embodiment are respectively left control valve and right control valve, and steering cluth includes and left control
Left clutch and the right clutch that is connected with right control valve, left control valve and right control valve that valve connects are driven by pressure oil and control
Left clutch and right clutch deciliter, thus realize turning to.Wherein, left control valve is correspondingly arranged on left valve seat 31, left spool
32 and left cross beam hanger 33, right control valve be correspondingly arranged on right valve seat 41, right spool 42 and right cross beam hanger 43.
As it is shown in figure 1, the above-mentioned concrete control mode for two changements of steering cluth is as follows:
Wherein, CL be the oiler of left clutch, CR be right clutch oiler, PCL and PCR be guide's fuel feeding, P be liquid
The pressure oil passage of pressure system, T are the drainback passage of hydraulic system, and P, PCL and PCR are same system pressure, control crank
Position signalling send hydraulic control system, hydraulic control system controls to adjust the guide hydraulic fluid port of hydraulic system by electromagnetic valve
Oil mass and break-make.During straight-line travelling, guide's hydraulic fluid port of hydraulic system is closed, and left spool 32 and right spool 42 are in hydraulic system
Act against under pressure oil effect and left cross beam hanger 33 and right cross on beam hanger 43, the pressure oil port of hydraulic system respectively with left clutch
Oiler keeps connecting with the oiler of right clutch, and the pressure oil in hydraulic system makes left clutch and right clutch pressing protect
Hold linkage status, two groups of crawler belt wheels straight-line travellings；During left steering, start fuel feeding with the left guide's hydraulic fluid port crossing beam hanger 33 corresponding,
The left pressure oil crossing beam hanger 33 promotes left spool 32 to move until left spool 32 abuts on gland 2 towards gland 2, the most left valve
The oil-in of seat 31 is cut off by left spool 32, and the oil-out of the most left valve seat 31 is with hydraulic control hydraulic fluid port by the second of left spool 32 even
Groove connects, and left clutch pressure release separates and disconnects linkage, and left crawler belt wheels stop walking, and right clutch normal fuel injection keeps connection
Dynamic, right-hand track chiain wheels walk on, it is achieved left steering；During right turn, start fuel feeding with the right guide's hydraulic fluid port crossing beam hanger 43 corresponding,
The right pressure oil crossing beam hanger 43 promotes right spool 42 to move until right spool 42 leans on gland 2 towards gland 2, right valve seat 41
Oil-in cut off by right spool 42, the oil-out of the rightest valve seat 41 and hydraulic control hydraulic fluid port the second connectivity slot by right spool 42
Connection, right clutch pressure release separates and disconnects linkage, and right-hand track chiain wheels stop walking, and left clutch normal fuel injection keeps linkage, left
Crawler belt wheels walk on, it is achieved right turn.
The controlling organization of the bull-dozer steering cluth of the present embodiment, after complete machine starts, is believed according to the position of control crank
Number, left beam hanger 33 excessively or the right guide's hydraulic oil crossed in beam hanger 43 enter, and spool opposite valve seat moves, thus obtains left clutch
Confession with right clutch fluid is disconnected, and in motor process, the hydraulic pressure oil mass of needs is few, is swift in motion, accurate positioning, reliability
Height, service life is long, makes the layout more freedom and flexibility of the steering tiller of bull-dozer.The present invention be steering cluth hydraulic pressure with
The integration of electrichydraulic control mode provides a kind of effective technical scheme.
The controlling organization simple in construction of the bull-dozer steering cluth of the present embodiment, manufacture with low cost, easy, size are little,
Use conveniently it is connected with steering cluth.With rigid link mechanism contrast, lubricate, wear and tear little, steering force is little, location is correct,
Maintenance period length and service life are long.
Embodiment two:
As in figure 2 it is shown, the controlling organization of bull-dozer steering cluth in the present embodiment is identical with embodiment one, difference exists
In: spool is provided with the first spring 5 away from the one end crossing beam hanger, and spool was resisted against the end of beam hanger under the effect of the first spring 5
Portion, can obtain stable opening feature by spring.
Embodiment three:
As it is shown on figure 3, the controlling organization of bull-dozer steering cluth in the present embodiment is identical with embodiment one, difference exists
In: valve seat includes the fixing seat 61 that be connected fixing with gland 2 and the sliding seat 62 being slidably matched with valve body 1, and spool is near gland 2
One end be slidably mounted in fixing seat 61, the other end of spool is positioned at sliding seat 62 and fixing with sliding seat 62 is connected,
Oil-in and hydraulic control hydraulic fluid port are arranged on fixing seat 61, and oil-out is arranged on sliding seat 62, and the first connectivity slot is positioned at fixing seat
In 61, the second connectivity slot is positioned at sliding seat 62.
Being provided with the second spring 7 in second connectivity slot, one end of the second spring 7 is resisted against on sliding seat 62, the second spring 7
Other end is resisted against on the trough rim of the second connectivity slot, can obtain stable opening feature by spring.
Should be appreciated that specific embodiment described above is only used for explaining the present invention, be not intended to limit the present invention.By
What the spirit of the present invention was extended out obviously changes or changes among still in protection scope of the present invention.
Claims (6)
1. for two changements of steering cluth, including valve body (1) and the gland that is sealed in valve body (1) two ends
(2), it is characterised in that: being provided with two groups of control valves in described valve body (1), described control valve includes valve seat and spool, described valve seat
On be sequentially provided with oil-in, hydraulic control hydraulic fluid port and oil-out, described oil-in connects with the hydraulic fluid port that send of hydraulic system, described oil-out
Connecting with the oil return opening of hydraulic system, described hydraulic control hydraulic fluid port is used for controlling steering cluth deciliter, sliding in the die cavity of described valve seat
The described spool of dynamic installation, the outer circumference surface of described spool is provided with the first connectivity slot and the second connectivity slot, described first connectivity slot
For connecting described oil-in and hydraulic control hydraulic fluid port, described second connectivity slot is used for connecting described hydraulic control hydraulic fluid port and oil-out, described
Spool is driven the confession controlling steering cluth fluid disconnected by pressure oil.
Two changements for steering cluth the most according to claim 1, it is characterised in that: the one of described valve seat
End is fixed on described gland (2), and the other end of described valve seat was provided with beam hanger, and the passage of oil excessively of described beam hanger excessively is with described
The die cavity connection of valve seat, when the pressure of the described pressure oil crossed in beam hanger is more than when sending hydraulic fluid port pressure of described hydraulic system, institute
State spool under differential pressure action towards the motion of described oil-in until described spool top is on gland (2), the most described first company
Groove connects described oil-in and hydraulic control hydraulic fluid port, when pressure the sending less than described hydraulic system of the described pressure oil crossed in beam hanger
During hydraulic fluid port pressure, described spool moves towards described oil-out under differential pressure action until described spool top is to described beam hanger excessively
On end face, the most described second connectivity slot connects described hydraulic control hydraulic fluid port and oil-out.
Two changements for steering cluth the most according to claim 2, it is characterised in that: described spool away from
Described one end crossing beam hanger is provided with the first spring (5), and described spool is resisted against described mistake under the effect of described first spring (5)
The end of beam hanger.
Two changements for steering cluth the most according to claim 2, it is characterised in that: described valve seat includes
The fixing seat (61) that be connected fixing with gland (2) and the sliding seat (62) being slidably matched with valve body (1), described spool is near gland
(2) in one end is slidably mounted on described fixing seat (61), the other end of described spool be positioned at described sliding seat (62) and
Fixing with described sliding seat (62) and be connected, described oil-in and hydraulic control hydraulic fluid port are arranged on described fixing seat (61), described fuel-displaced
Mouth is arranged on described sliding seat (62), and described first connectivity slot is positioned at described fixing seat (61), described second connectivity slot position
In described sliding seat (62).
Two changements for steering cluth the most according to claim 4, it is characterised in that: described second connection
Being provided with the second spring (7) in groove, one end of described second spring (7) is resisted against on described sliding seat (62), described second spring
(7) other end is resisted against on the trough rim of described second connectivity slot.
Two changements for steering cluth the most according to claim 1, it is characterised in that: control described in two groups
Valve is respectively left control valve and right control valve, described steering cluth include the left clutch that is connected with left control valve and with right control
The right clutch that valve processed connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799595.0A CN106246761B (en) | 2016-08-31 | 2016-08-31 | A kind of two changements for steering cluth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799595.0A CN106246761B (en) | 2016-08-31 | 2016-08-31 | A kind of two changements for steering cluth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106246761A true CN106246761A (en) | 2016-12-21 |
| CN106246761B CN106246761B (en) | 2018-08-17 |
Family
ID=58080777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610799595.0A Active CN106246761B (en) | 2016-08-31 | 2016-08-31 | A kind of two changements for steering cluth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106246761B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3646959A (en) * | 1970-10-12 | 1972-03-07 | Sperry Rand Corp | Power transmission |
| JPH07190012A (en) * | 1993-12-24 | 1995-07-28 | Komatsu Ltd | Pilot pressure control valve |
| CN202130443U (en) * | 2011-06-22 | 2012-02-01 | 山推工程机械股份有限公司 | Brake valve for bulldozer |
| CN203172616U (en) * | 2013-04-11 | 2013-09-04 | 大连兴龙液压有限公司 | Brake valve |
| US20140150870A1 (en) * | 2012-11-30 | 2014-06-05 | Caterpillar Inc. | Hydraulic system having dual manifolds |
| CN203819222U (en) * | 2014-05-23 | 2014-09-10 | 山推工程机械股份有限公司 | Hydraulic control turn braking valve for bulldozer |
| CN104149849A (en) * | 2014-09-01 | 2014-11-19 | 山推工程机械股份有限公司 | Hydraulic steering brake system and hydraulic control steering brake valve |
| CN206175529U (en) * | 2016-08-31 | 2017-05-17 | 江西液压件股份有限公司 | A two reversing mechanism for steering clutch |
-
2016
- 2016-08-31 CN CN201610799595.0A patent/CN106246761B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3646959A (en) * | 1970-10-12 | 1972-03-07 | Sperry Rand Corp | Power transmission |
| JPH07190012A (en) * | 1993-12-24 | 1995-07-28 | Komatsu Ltd | Pilot pressure control valve |
| CN202130443U (en) * | 2011-06-22 | 2012-02-01 | 山推工程机械股份有限公司 | Brake valve for bulldozer |
| US20140150870A1 (en) * | 2012-11-30 | 2014-06-05 | Caterpillar Inc. | Hydraulic system having dual manifolds |
| CN203172616U (en) * | 2013-04-11 | 2013-09-04 | 大连兴龙液压有限公司 | Brake valve |
| CN203819222U (en) * | 2014-05-23 | 2014-09-10 | 山推工程机械股份有限公司 | Hydraulic control turn braking valve for bulldozer |
| CN104149849A (en) * | 2014-09-01 | 2014-11-19 | 山推工程机械股份有限公司 | Hydraulic steering brake system and hydraulic control steering brake valve |
| CN206175529U (en) * | 2016-08-31 | 2017-05-17 | 江西液压件股份有限公司 | A two reversing mechanism for steering clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106246761B (en) | 2018-08-17 |
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