CN106468292A - A kind of controlling organization of bull-dozer steering cluth - Google Patents
A kind of controlling organization of bull-dozer steering cluth Download PDFInfo
- Publication number
- CN106468292A CN106468292A CN201610799464.2A CN201610799464A CN106468292A CN 106468292 A CN106468292 A CN 106468292A CN 201610799464 A CN201610799464 A CN 201610799464A CN 106468292 A CN106468292 A CN 106468292A
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- beam hanger
- fluid port
- hydraulic fluid
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
Abstract
The present invention relates to hydraulic power technical field，Especially a kind of controlling organization of bull-dozer steering cluth，Including valve body and the gland being sealed in valve body two ends，It is provided with left control valve and right control valve in valve body，Left control valve and right control valve adopt Hydraulic guide control，After whole machine starts，Beam hanger crossed to the left by oil pump and right mistake provides guide's hydraulic oil in beam hanger，Left clutch and right clutch is allowed to keep linkage，Steering according to steering cluth requires，Left beam hanger excessively or the right guide's hydraulic oil crossed in beam hanger interrupt，Valve element opposite valve seat moves，Thus the confession obtaining steering cluth fluid is disconnected，In motor process，The The hydraulic oil needing is few，It is swift in motion，Accurate positioning，Reliability is high，Long service life，Make the arrangement more freedom and flexibility of the steering tiller of bull-dozer，Hydraulic pressure for steering cluth、Electro-hydraulic and automatically control offer a kind of effective technical scheme.
Description
Technical field
The present invention relates to Hydraulic Machinery technical field is it is adaptable to engineering machinery, building machinery, agriculture and forestry machinery and vehicle
Deng the steering with 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 larger, and articulation mechanism is many, thus causing equipment adjustment difficulty big, transmission effect
Rate is relatively low, and compared with " weight ", the frequent steering in operation easily causes anxiety and the fatigue of operator to handling maneuver.The operation work of bull-dozer
Condition is severe, and the wear extent of linkage oscillating bearing is big, when adjustment is not in time or when safeguarding not in place, happen occasionally steering less than
Position, causes the faults such as the rapid decline of service life or the damage of steering cluth, the positioning of existing steering cluth steering
Mechanism according to the difference of maneuverability pattern, can be divided into linkage, hydraulic pressure with automatically controlled etc., these three maneuverability patterns typically can not be simple
Ground is integrated.
Content of the invention
The purpose of the present invention is the defect overcoming prior art to exist, and provides a kind of control machine of bull-dozer steering cluth
Structure, makes the steering situation of steering cluth can adopt electronics, hydraulic control mode completely, is hydraulic pressure, the electricity of steering cluth
Liquid and automatically control offer a kind of effective technical scheme.
In order to realize the purpose of the present invention, be employed technical scheme comprise that：
The controlling organization of the bull-dozer steering cluth of the present invention includes valve body and is sealed in the gland at valve body two ends, described
Be provided with left control valve and right control valve in valve body, described left control valve and right control valve adopt Hydraulic guide control left clutch and
The division of right clutch, the oil-in of described left control valve and right control valve is communicated in the pressure oil port of oil pump, described left control
Valve is connected with the oil return opening of oil pump respectively with the oil-out of right control valve, the hydraulic control hydraulic fluid port of described left control valve and left clutch
Oiler connects, and the hydraulic control hydraulic fluid port of described right control valve is connected with the oiler of right clutch, during straight-line travelling, the pressure of oil pump
Hydraulic fluid port is connected with the oiler of left clutch and the oiler of right clutch respectively, during left steering, the pressure oil port of oil pump with right
The oiler of clutch keeps connection, the oil-in cut-out of described left control valve, the hydraulic control hydraulic fluid port of left control valve, oil-out and oil
The oil return opening of pump is sequentially communicated, and during right turn, the pressure oil port of oil pump keeps connecting with the oiler of left clutch, described right control
The oil-in cut-out of valve processed, the oil return opening of the hydraulic control hydraulic fluid port, oil-out and oil pump of right control valve is sequentially communicated.
Left control valve of the present invention includes left valve seat and is arranged on the left valve element of left valve-seat type intracavity, and described left valve seat sets
There are oil-in corresponding with left valve seat, hydraulic control hydraulic fluid port and oil-out, one end of described left valve seat is arranged on gland, described left valve
The other end of seat is provided with left beam hanger excessively, and one end of the described left excessively oily passage crossing beam hanger is connected with the die cavity of described left valve seat,
The described left excessively oily other end of passage crossing beam hanger is connected with guide's hydraulic fluid port of oil pump.
The outer circumference surface of left valve element of the present invention is provided with first annular groove, and during straight-line travelling, described left valve element exists
Against gland under the left pressure oil effect crossed in beam hanger, the oil-in of now described left valve seat and hydraulic control hydraulic fluid port pass through described first
Annular groove connects, during left steering, the left pressure oil pressure release crossed in beam hanger, and described left valve element is in the pressure oil of pressure fuel pump hydraulic fluid port
Move towards described left beam hanger of crossing under effect, the hydraulic control hydraulic fluid port of described left valve seat and oil-out pass through described first annular groove even
Logical.
Right control valve of the present invention includes right valve seat and is arranged on the right valve element of right valve-seat type intracavity, and described right valve seat sets
There are oil-in corresponding with right valve seat, hydraulic control hydraulic fluid port and oil-out, one end of described right valve seat is arranged on gland, described right valve
The other end of seat is provided with right beam hanger excessively, and one end of the described right excessively oily passage crossing beam hanger is connected with the die cavity of described right valve seat,
The described right excessively oily other end of passage crossing beam hanger is connected with guide's hydraulic fluid port of oil pump.
The outer circumference surface of right valve element of the present invention is provided with the second annular groove, and during straight-line travelling, described right valve element exists
Against gland under the right pressure oil effect crossed in beam hanger, the oil-in of now described right valve seat and hydraulic control hydraulic fluid port pass through described second
Annular groove connects, during right turn, the right pressure oil pressure release crossed in beam hanger, and described right valve element is in the pressure oil of pressure fuel pump hydraulic fluid port
Move towards described right beam hanger of crossing under effect, the hydraulic control hydraulic fluid port of described right valve seat and oil-out pass through described second annular groove even
Logical.
Left valve element of the present invention is provided with the first spring near described left one end crossing beam hanger, and described right valve element is near described
Right one end crossing beam hanger is provided with second spring.
During left steering of the present invention, the pressure oil of described pressure fuel pump hydraulic fluid port overcomes the pretightning force of described first spring to promote a left side
Valve element moves towards described left beam hanger of crossing, and during right turn, the pressure oil of described pressure fuel pump hydraulic fluid port overcomes described second spring
Pretightning force promotes right valve element to move towards right beam hanger of crossing.
The beneficial effect of the controlling organization of bull-dozer steering cluth of the present invention is：The bull-dozer of the present invention turns to clutch
After whole machine starts, beam hanger crossed by oil pump to the controlling organization of device to the left and right mistake in beam hanger provides guide's hydraulic oil, allows left clutch
Keep linkage with right clutch, required according to the steering of steering cluth, left cross beam hanger or the right guide's hydraulic oil crossed in beam hanger
Interrupt, valve element opposite valve seat moves, thus the confession obtaining steering cluth fluid is disconnected, in motor process, the hydraulic oil of needs
Amount is few, is swift in motion, accurate positioning, and reliability is high, long service life, makes the arrangement more freely spirit of the steering tiller of bull-dozer
Live, for the hydraulic pressure of steering cluth, electro-hydraulic and automatically control offer a kind of effective technical scheme.
Brief description
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the controlling organization of bull-dozer steering cluth of the present invention.
Wherein：Valve body 1；Gland 2；Left valve seat 31, left valve element 32, left beam hanger 33 excessively, the first spring 34；Right valve seat 41, right
Valve element 42, right beam hanger 43 excessively, second spring 44.
Specific embodiment
In describing the invention it is to be understood that term " radially ", " axial ", " on ", D score, " top ", " bottom ",
The orientation of instruction such as " interior ", " outward " or position relationship 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 the device of instruction or hint 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, unless otherwise stated,
" multiple " are meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " set
Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be 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.
As shown in figure 1, the controlling organization of the bull-dozer steering cluth of the present embodiment includes valve body 1 and is sealed in valve body 1
The gland 2 at two ends, is provided with left control valve and right control valve in valve body 1, left control valve and right control valve adopt Hydraulic guide control
Left clutch and the division of right clutch, the oil-in of left control valve and right control valve is communicated in the pressure oil port of oil pump, left control
Valve processed is connected with the oil return opening of oil pump respectively with the oil-out of right control valve, the hydraulic control hydraulic fluid port of left control valve and entering of left clutch
Hydraulic fluid port connects, and the hydraulic control hydraulic fluid port of right control valve is connected with the oiler of right clutch, and during straight-line travelling, the pressure oil port of oil pump is divided
Do not connect with the oiler of left clutch and the oiler of right clutch, during left steering, the pressure oil port of oil pump and right clutch
Oiler keep connection, left control valve oil-in cut-out, the oil return opening of the hydraulic control hydraulic fluid port, oil-out and oil pump of left control valve
It is sequentially communicated, during right turn, the pressure oil port of oil pump keeps connecting with the oiler of left clutch, and the oil-in of right control valve is cut
Disconnected, the oil return opening of the hydraulic control hydraulic fluid port, oil-out and oil pump of right control valve is sequentially communicated.
Wherein, left control valve includes left valve seat 31 and the left valve element 32 being arranged in left valve seat 31 die cavity, and left valve seat 31 sets
There are oil-in corresponding with left valve seat 31, hydraulic control hydraulic fluid port and oil-out, one end of left valve seat 31 is arranged on gland 2, left valve seat
31 other end is provided with left beam hanger 33 excessively, and one end of the left excessively oily passage crossing beam hanger 33 is connected with the die cavity of left valve seat 31, left
The excessively oily other end of passage crossing beam hanger 33 is connected with guide's hydraulic fluid port of oil pump.
In order to the hydraulic fluid port of left control valve can freely be connected, the outer circumference surface of left valve element 32 is provided with first annular recessed
Groove, during straight-line travelling, left valve element 32 under the left pressure oil crossed in beam hanger 33 effect against gland 2, now the entering of left valve seat 31
Hydraulic fluid port is connected by first annular groove with hydraulic control hydraulic fluid port, during left steering, the left pressure oil pressure release crossed in beam hanger 33, and left valve element 32
Move towards left beam hanger 33 of crossing under the pressure oil effect of pressure fuel pump hydraulic fluid port, the hydraulic control hydraulic fluid port of left valve seat 31 and oil-out pass through
First annular groove connection.
Wherein, right control valve includes right valve seat 41 and the right valve element 42 being arranged in right valve seat 41 die cavity, and right valve seat 41 sets
There are oil-in corresponding with right valve seat 41, hydraulic control hydraulic fluid port and oil-out, one end of right valve seat 41 is arranged on gland 2, right valve seat
41 other end is provided with right beam hanger 43 excessively, and one end of the right excessively oily passage crossing beam hanger 43 is connected with the die cavity of right valve seat 41, right
The excessively oily other end of passage crossing beam hanger 43 is connected with guide's hydraulic fluid port of oil pump.
In order to the hydraulic fluid port of right control valve can freely be connected, it is recessed that the outer circumference surface of right valve element 42 is provided with the second annular
Groove, during straight-line travelling, right valve element 42 under the right pressure oil crossed in beam hanger 43 effect against gland 2, now the entering of right valve seat 41
Hydraulic fluid port is connected by the second annular groove with hydraulic control hydraulic fluid port, during right turn, the right pressure oil pressure release crossed in beam hanger 43, and right valve element 42
Move towards right beam hanger 43 of crossing under the pressure oil effect of pressure fuel pump hydraulic fluid port, the hydraulic control hydraulic fluid port of right valve seat 41 and oil-out pass through
Second annular groove connection.
As shown in figure 1, CL be the oiler of left clutch, CR be right clutch oiler, PCL and PCR be guide's fuel feeding,
P is the pressure oil passage of oil pump, T is the drainback passage of oil pump, and P, PCL and PCR are same system pressure, and above-mentioned bull-dozer turns
As follows to the concrete control mode of the controlling organization of clutch：
The position signalling of control crank sends hydraulic control system, and hydraulic control system adjusts oil pump by solenoid valve control
The oil mass of guide's hydraulic fluid port and break-make.During straight-line travelling, guide's hydraulic fluid port of oil pump is opened, and left valve element 32 and right valve element 42 are formerly
Act against on gland 2 under the pressure oil effect of oil diverting port, the pressure oil port of oil pump respectively with the oiler of left clutch and the right side from
The oiler of clutch keeps connection, and the pressure oil in oil pump makes left clutch and right clutch keep linkage status, two groups of crawler belts
Wheel group straight-line travelling；During left steering, with the left corresponding guide's hydraulic fluid port fuel cut-off of beam hanger 33 excessively, left beam hanger 33 pressure release excessively, oil pump
The pressure oil of pressure oil port promotes left valve element 32 to cross that beam hanger 33 is mobile until left valve element 32 abuts to left beam hanger 33 of crossing towards left
End, now the oil-in of left valve seat 31 cut off by left valve element 32, the oil-out of left valve seat 31 and hydraulic control hydraulic fluid port pass through the simultaneously
One annular groove connection, left clutch pressure release disconnects linkage, and left Athey wheel group stops walking, and right clutch normal fuel injection keeps connection
Dynamic, right-hand track chiain wheel group walks on, and realizes left steering；During right turn, cross the corresponding guide's hydraulic fluid port fuel cut-off of beam hanger 43 with right,
Right beam hanger 43 pressure release excessively, the pressure oil of pressure fuel pump hydraulic fluid port promotes right valve element 42 mobile, and the oil-in of right valve seat 41 is by right valve element
42 cut-outs, the oil-out of right valve seat 41 is connected by the second annular groove with hydraulic control hydraulic fluid port simultaneously, and right clutch pressure release disconnects connection
Dynamic, right-hand track chiain wheel group stops walking, and left clutch normal fuel injection keeps linkage, and left Athey wheel group walks on, and realizes right turn.
After whole machine starts, oil pump crosses beam hanger 33 and the right side to the controlling organization of the bull-dozer steering cluth of the present embodiment to the left
Crossing in beam hanger 43 provides guide's hydraulic oil, allows left clutch and right clutch keep linkage, according to the position signalling of control crank,
Left cross beam hanger 33 or right cross beam hanger 43 in guide's hydraulic oil interrupt, valve element opposite valve seat move, thus obtain left clutch and
The confession of right clutch fluid is disconnected, and in motor process, the The hydraulic oil of needs is few, is swift in motion, accurate positioning, and reliability is high,
Long service life, makes the arrangement more freedom and flexibility of the steering tiller of bull-dozer.The present invention is hydraulic pressure and the electricity of steering cluth
The integration of liquid control mode provides a kind of effective technical scheme.
Simple, with low cost, the easy manufacture of controlling organization structure of the bull-dozer steering cluth of the present embodiment, size are little,
Conveniently it is connected use with steering cluth.With the contrast of rigid link mechanism, lubricate, wear and tear that little, steering force is little, positioning is correct,
Maintenance period length and long service life.
Preferably, left valve element 32 is provided with the first spring 34 near left one end crossing beam hanger 33, and right valve element 42 is near right excessively oily
One end of bar 43 is provided with second spring 44.
During left steering, the pressure oil of pressure fuel pump hydraulic fluid port overcomes the pretightning force promotion left valve element 32 of the first spring 34 towards a left side
Cross beam hanger 33 mobile, during right turn, the pressure oil of pressure fuel pump hydraulic fluid port overcomes the pretightning force of second spring 44 to promote right valve element 42
Move towards right beam hanger 43 of crossing.
Relative action between valve seat and valve element adopts the structure of mechanical position limitation it is ensured that positioning is correct, i.e. one end of valve element
Spacing by gland 2, other end is spacing by the end crossing beam hanger, and two ends pressure reduction is passed through in the movement travel of valve element and spring force is real
Existing.
It should be appreciated that specific embodiment described above is only used for explaining the present invention, it is not intended to limit the present invention.By
Obvious change that the spirit of the present invention is extended out or change among still in protection scope of the present invention.
Claims (7)
1. a kind of controlling organization of bull-dozer steering cluth, including valve body (1) with the gland (2) that is sealed in valve body (1) two ends,
It is characterized in that：It is provided with left control valve and right control valve, described left control valve and right control valve adopt hydraulic pressure in described valve body (1)
Pilot control left clutch and the division of right clutch, the oil-in of described left control valve and right control valve is communicated in the pressure of oil pump
Power hydraulic fluid port, described left control valve is connected with the oil return opening of oil pump respectively with the oil-out of right control valve, the liquid of described left control valve
Oil-control mouth is connected with the oiler of left clutch, and the hydraulic control hydraulic fluid port of described right control valve is connected with the oiler of right clutch, directly
When line travels, the pressure oil port of oil pump is connected with the oiler of left clutch and the oiler of right clutch respectively, during left steering,
The pressure oil port of oil pump keeps connecting with the oiler of right clutch, the oil-in cut-out of described left control valve, left control valve
The oil return opening of hydraulic control hydraulic fluid port, oil-out and oil pump is sequentially communicated, and during right turn, the pressure oil port of oil pump enters oil with left clutch
Mouthful keep connection, the oil-in cut-out of described right control valve, the oil return opening of the hydraulic control hydraulic fluid port, oil-out and oil pump of right control valve according to
Secondary connection.
2. bull-dozer steering cluth according to claim 1 controlling organization it is characterised in that：Described left control valve bag
Include left valve seat (31) and the left valve element (32) being arranged in left valve seat (31) die cavity, described left valve seat (31) is provided with and left valve seat
(31) corresponding oil-in, hydraulic control hydraulic fluid port and oil-out, one end of described left valve seat (31) is arranged on gland (2), a described left side
The other end of valve seat (31) is provided with left beam hanger (33) excessively, described left one end of excessively oily passage crossing beam hanger (33) and described left valve
The die cavity connection of seat (31), the described left excessively oily other end of passage crossing beam hanger (33) is connected with guide's hydraulic fluid port of oil pump.
3. bull-dozer steering cluth according to claim 2 controlling organization it is characterised in that：Described left valve element (32)
Outer circumference surface be provided with first annular groove, during straight-line travelling, described left valve element (32) is in the left pressure crossed in beam hanger (33)
Against gland (2) under oil effect, the oil-in of now described left valve seat (31) and hydraulic control hydraulic fluid port pass through described first annular groove
Connection, during left steering, the left pressure oil pressure release crossed in beam hanger (33), described left valve element (32) is in the pressure oil of pressure fuel pump hydraulic fluid port
Move towards described left beam hanger (33) of crossing under effect, the hydraulic control hydraulic fluid port of described left valve seat (31) and oil-out pass through described first ring
Connected in star connects.
4. bull-dozer steering cluth according to claim 3 controlling organization it is characterised in that：Described right control valve bag
Include right valve seat (41) and the right valve element (42) being arranged in right valve seat (41) die cavity, described right valve seat (41) is provided with and right valve seat
(41) corresponding oil-in, hydraulic control hydraulic fluid port and oil-out, one end of described right valve seat (41) is arranged on gland (2), the described right side
The other end of valve seat (41) is provided with right beam hanger (43) excessively, described right one end of excessively oily passage crossing beam hanger (43) and described right valve
The die cavity connection of seat (41), the described right excessively oily other end of passage crossing beam hanger (43) is connected with guide's hydraulic fluid port of oil pump.
5. bull-dozer steering cluth according to claim 4 controlling organization it is characterised in that：Described right valve element (42)
Outer circumference surface be provided with the second annular groove, during straight-line travelling, described right valve element (42) is in the right pressure crossed in beam hanger (43)
Against gland (2) under oil effect, the oil-in of now described right valve seat (41) and hydraulic control hydraulic fluid port pass through described second annular groove
Connection, during right turn, the right pressure oil pressure release crossed in beam hanger (43), described right valve element (42) is in the pressure oil of pressure fuel pump hydraulic fluid port
Move towards described right beam hanger (43) of crossing under effect, the hydraulic control hydraulic fluid port of described right valve seat (41) and oil-out pass through described second ring
Connected in star connects.
6. bull-dozer steering cluth according to claim 5 controlling organization it is characterised in that：Described left valve element (32)
One end near described left beam hanger (33) excessively is provided with the first spring (34), and described right valve element (42) is near described right beam hanger (43) excessively
One end be provided with second spring (44).
7. bull-dozer steering cluth according to claim 6 controlling organization it is characterised in that：During left steering, described
The pressure oil of pressure fuel pump hydraulic fluid port overcomes the pretightning force of described first spring (34) to promote left valve element (32) towards described left excessively oily
Bar (33) is mobile, and during right turn, the pressure oil of described pressure fuel pump hydraulic fluid port overcomes the pretightning force of described second spring (44) to promote
Right valve element (42) is moved towards right beam hanger (43) of crossing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799464.2A CN106468292B (en) | 2016-08-31 | 2016-08-31 | A kind of control mechanism of bull-dozer steering cluth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799464.2A CN106468292B (en) | 2016-08-31 | 2016-08-31 | A kind of control mechanism of bull-dozer steering cluth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106468292A true CN106468292A (en) | 2017-03-01 |
| CN106468292B CN106468292B (en) | 2018-10-23 |
Family
ID=58230371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610799464.2A Active CN106468292B (en) | 2016-08-31 | 2016-08-31 | A kind of control mechanism of bull-dozer steering cluth |
Country Status (1)
| Country | Link |
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| CN (1) | CN106468292B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3646959A (en) * | 1970-10-12 | 1972-03-07 | Sperry Rand Corp | Power transmission |
| CN101280853A (en) * | 2008-03-14 | 2008-10-08 | 上海彭浦机器厂有限公司 | Steering valve |
| 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 |
| CN104192201A (en) * | 2014-08-18 | 2014-12-10 | 柳州柳工液压件有限公司 | Hydraulic steering control valve and hydraulic steering control system |
| CN206035926U (en) * | 2016-08-31 | 2017-03-22 | 柳工常州机械有限公司 | Bull -dozer steering clutch's control mechanism |
-
2016
- 2016-08-31 CN CN201610799464.2A patent/CN106468292B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3646959A (en) * | 1970-10-12 | 1972-03-07 | Sperry Rand Corp | Power transmission |
| CN101280853A (en) * | 2008-03-14 | 2008-10-08 | 上海彭浦机器厂有限公司 | Steering valve |
| 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 |
| CN104192201A (en) * | 2014-08-18 | 2014-12-10 | 柳州柳工液压件有限公司 | Hydraulic steering control valve and hydraulic steering control system |
| 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 |
| CN206035926U (en) * | 2016-08-31 | 2017-03-22 | 柳工常州机械有限公司 | Bull -dozer steering clutch's control mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106468292B (en) | 2018-10-23 |
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Denomination of invention: A control mechanism of bulldozer steering clutch Effective date of registration: 20200817 Granted publication date: 20181023 Pledgee: LIUZHOU LIUGONG EXCAVATORS Co.,Ltd. Pledgor: LIUGONG CHANGZHOU MACHINERY Co.,Ltd. Registration number: Y2020980005068 |