CN107939759A - A kind of non-differential driver's cabin twin-tub hoisting system - Google Patents
A kind of non-differential driver's cabin twin-tub hoisting system Download PDFInfo
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- CN107939759A CN107939759A CN201711362230.2A CN201711362230A CN107939759A CN 107939759 A CN107939759 A CN 107939759A CN 201711362230 A CN201711362230 A CN 201711362230A CN 107939759 A CN107939759 A CN 107939759A
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- mandril
- master cylinder
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- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 26
- 239000002828 fuel tank Substances 0.000 claims description 26
- 239000013589 supplement Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 239000010426 asphalt Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 86
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Classifications
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- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- 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
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a kind of non-differential driver's cabin twin-tub hoisting system, belong to heavy truck wheelhouse tipping system, solve the problems, such as not arranging twin-tub hoisting system for some driver's cabins, driver's cabin twin-tub hoisting system is realized at the same time to drop this, drop the purpose of weight, the hoisting system, it is characterised in that it includes it is made of 1 master cylinder assembly, 1 auxiliary oil cylinder and 1 manual pump assembly；There is mandril in master cylinder；Mandril is fixed with piston, and mandril is located in rodless cavity, and the axis rodless cavity axis of mandril overlaps；Mandril front end is circular conical surface；Push rod can coordinate with mandril front end, by push rod to spool direction compression push rod compression strap movable valve plug compression spring, the spool conical surface is separated with the valve body conical surface, make B mouthfuls to be in connected state with A mouthfuls；The system is from the limitation of driver's cabin arrangement space, and versatility is good, moreover, light-weight, cost is low.
Description
Technical field
The invention belongs to heavy truck wheelhouse tipping system, is related to a kind of non-differential driver's cabin twin-tub hoisting system, is applied to
Heavy truck driver's cabin twin-tub hoisting system.
Background technology
If heavy automobile cab using using differential hoisting system, the hoisting system more at present during twin-tub hoisting system
Oil cylinder cylinder diameter is larger, of high cost, and weight is big.For some driver's cabins, since space limits, the difference of this large-diameter can not be carried out
The arrangement of dynamic elevating ram.
The content of the invention
The technical problem to be solved by the present invention is to provide a kind of non-differential driver's cabin twin-tub hoisting system, solve to Mr. Yu
The problem of a little driver's cabins can not arrange twin-tub hoisting system, while realize driver's cabin twin-tub hoisting system and drop this, drop the mesh of weight
's.
The technical scheme is that：A kind of non-differential driver's cabin twin-tub hoisting system, it is characterised in that including by 1
Master cylinder assembly, 1 auxiliary oil cylinder and 1 manual pump assembly composition；Master cylinder assembly is mainly by oil cylinder and fluid-control one-way valve group
Into；There is mandril in master cylinder；Mandril is fixed with piston, and mandril is located in rodless cavity, and the axis rodless cavity axis of mandril overlaps；
Mandril front end is circular conical surface；Hydraulic control one-way valve is mainly made of spring, spool, valve body, push rod, spool, valve body taper-face contact, bullet
Spring is located at spool rear end；Push rod is fixedly connected with spool, and push rod is stretched out from valve body, and the height of push rod front end is higher than mandril circular conical surface
Lower limit, push rod and mandril front end is coordinated, push rod compressed to spool direction；Push rod compression strap movable valve plug compresses bullet
Spring, makes the spool conical surface be separated with the valve body conical surface, makes B mouthfuls to be in connected state with A mouthfuls；High pressure oil from C mouthfuls into fashionable, B mouthfuls with A mouthfuls
In connected state；Manual pump assembly mainly by reversal valve, manual pump group into；Reversal valve is three position four-way directional control valve, it has three
A operating position, when the spool of reversal valve is in I, P1 mouthfuls connect with P2 mouthfuls, and P3 mouthfuls connect with P4 mouthfuls；Spool is in II
When, P1 mouthfuls of cut-offs, P2 mouthfuls, three mouthfuls of P3 mouthfuls, P4 mouths connections；When spool is in III, P1 mouthfuls connect with P4 mouthfuls, and P3 mouthfuls connect with P2 mouthfuls
It is logical；Hydraulic fluid port connection fuel tank is pumped into manually, the P1 mouths of the oil outlet connection reversal valve pumped manually；The C mouths connection of hydraulic control one-way valve connects
Logical master cylinder rod chamber and auxiliary oil cylinder rod chamber；The B mouths connection master cylinder rodless cavity and auxiliary oil cylinder rodless cavity of hydraulic control one-way valve；Change
P1 mouths connection to valve pumps out hydraulic fluid port, the A mouths of the P2 mouths connection hydraulic control one-way valve of reversal valve manually；The P3 mouths connection oil of reversal valve
Case；The P4 mouths connection master cylinder rod chamber and auxiliary oil cylinder rod chamber of reversal valve.
Preferably, when reversal valve is in II, while the compression push rod state of the mandril in master cylinder assembly so that liquid
The A mouths of control check valve are connected with B mouthfuls；The supplement process of fluid is as follows：Fluid in master cylinder rod chamber and auxiliary oil cylinder rod chamber
After the P4 mouths that reversal valve is reached by pipeline, returned to through P3 mouthfuls in fuel tank, while the fluid in fuel tank passes through reversal valve P3 successively
Mouthful, P2 mouthful, A mouths through hydraulic control one-way valve are arrived separately in master cylinder rodless cavity and auxiliary oil cylinder rodless cavity with B mouthfuls.
Preferably, when reversal valve is in II, while the compression push rod state of the mandril in master cylinder assembly so that liquid
The A mouths of control check valve are connected with B mouthfuls；The supplement process of fluid is as follows：Fluid in master cylinder rodless cavity and auxiliary oil cylinder rodless cavity
Reach the B mouths of hydraulic control one-way valve together by pipeline, from A mouthfuls outflow, the P2 mouths through reversal valve, P3 mouthfuls return in fuel tank；At the same time
Fluid in fuel tank can pass sequentially through the P3 mouths of reversal valve, P4 mouthfuls, master cylinder rod chamber and auxiliary oil cylinder are arrived separately at by pipeline
In rod chamber.
Preferably, when driving, driver's cabin is in falling state, and reversal valve is rotated to II.
Preferably, after falling driver's cabin, that is, cylinder piston rod withdrawal after rise, the mandril of master cylinder assembly is in compression hydraulic control
The state of unidirectional valve follower.
Preferably, rodless cavity is located in the mandril directed cavity of master cylinder left end, which is also asphalt channel.
Preferably, hydraulic control one-way valve further includes valve deck composition.
Preferably, manual pump assembly further includes safety valve, and safety valve is overflow valve, its oil outlet connection fuel tank, oiler
Connection pumps out hydraulic fluid port manually.
Preferably, master cylinder, the piston rod of auxiliary oil cylinder act on driver's cabin.
Preferably, master cylinder, auxiliary oil cylinder are non-differential cylinder, can use common oil cylinder.
The principle of the present invention is：
The present invention is using the master cylinder of 1 non-differential lifting, 1 non-differential lifting auxiliary oil cylinder and 1 and double oil cylinder phases
Matched pump manually is formed.
Wherein, master cylinder is mainly made of oil cylinder with the hydraulic control one-way valve with push rod；Pump is mainly by pump, safety manually
Valve, three position four-way directional control valve, fuel tank composition.Manually control three position four-way directional control valve can realize the lifting of oil cylinder, pull back
Changed with road location.
Twin-tub uses parallel-connection structure.During lifting, reversal valve is got into lift location, high pressure oil is distinguished by hydraulic control one-way valve
High pressure oil is supplied to double oil cylinder rodless cavities, the rod chamber fluid of double oil cylinders passes through reversal valve oil return；When pulling back, reversal valve is got to back
Position is drawn, supplies high pressure oil to double cylinder rod chambers respectively, double oil cylinder rodless cavity fluid are returned by hydraulic control one-way valve and reversal valve
Oil；During driving, reversal valve is got into road location, at this time, double cylinder upper cavity oils are directly connected by reversal valve with fuel tank, double oil cylinders
Cavity of resorption is linked together by hydraulic control one-way valve, then is connected through hydraulic control one-way valve, reversal valve and fuel tank, the design of main oil cylinder piston end
There is mandril, under driving states, mandril presses the push rod of hydraulic control one-way valve all the time, in this way, the push rod of hydraulic control one-way valve just begins
Hydraulic control one-way valve is set to be in open mode eventually, so that double oil cylinder rodless cavities are connected by hydraulic control one-way valve, reversal valve and fuel tank
It is logical, you can to realize that oil cylinder can be with driver's cabin free floating under driving states.
The solution have the advantages that：The present invention can match any wheelhouse tipping lifted using twin-tub in heavy truck
In system, from the limitation of driver's cabin arrangement space, versatility is good, moreover, light-weight, cost is low.
Brief description of the drawings
Fig. 1 is the principle of the present invention figure.
Fig. 2 is the hydraulic control one-way valve with push rod of the present invention and its work relationship schematic diagram with master cylinder.
Fig. 3 is the three-position four-way valve schematic diagram of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of non-differential driver's cabin twin-tub hoisting system of the present invention, mainly by the main oil of 1 non-differential lifting
The non-differential lifting auxiliary oil cylinder assembly 7 of cylinder assembly 1,1 and 1 manual pump assembly 10 to match with double oil cylinders form.Main oil
Cylinder assembly 1 and auxiliary oil cylinder assembly 7 are parallel-connection structure, i.e. the oil at the oily both ends of pair of the master cylinder of master cylinder assembly and auxiliary oil cylinder assembly
Road is connection respectively.
Referring to Fig. 1, Fig. 2, master cylinder assembly 1 is mainly made of oil cylinder 17 and hydraulic control one-way valve 2, and hydraulic control one-way valve 2 is main
Formed by by spring 14, spool 15, valve body 16, push rod 19, mandril 18 is designed with master cylinder 17.Mandril 18 is fixed with piston,
And mandril is located in rodless cavity, (rodless cavity is located at master cylinder left end, and there is mandril to be oriented to for the axis rodless cavity axis coincidence of mandril
Chamber, the directed cavity are also asphalt channel).18 front end of mandril is circular conical surface.
Push rod 19 is fixedly connected with spool 15, and push rod 19 is stretched out from valve body, and the height of 19 front end of push rod is justified higher than mandril 18
The lower limit of the conical surface (lower limit is parallel with the axial direction of push rod)；Push rod 19 is set to coordinate with mandril 18, by push rod 19 to spool
Compress in direction.
Further, hydraulic control one-way valve 2 is made of valve deck 13, spring 14, spool 15, valve body 16, push rod 19,14, spring
In 15 lower end of spool；The conical surface of spool 15 and tapered (the A mouthfuls and B mouthfuls) passage of valve body pass through taper-face contact；19 compression strap of push rod
Movable valve plug 15 compresses spring, and 15 conical surface of spool is separated with the valve body conical surface, and B mouthfuls are in connected state with A mouthfuls；High pressure oil from C mouthfuls into
Fashionable, spool 15 can be pushed away the conical surface of valve body 16 by high pressure oil so that A mouthfuls are in connected state with B mouthfuls.
Process is as follows in detail：When mandril 18 is contacted with push rod 19, the meeting pressure-ram 19 of mandril 18, push rod 19 can overcome
The open-top spool 15 of elastic force of spring 14 so that B mouthfuls are in connected state all the time with A mouthfuls；When mandril 18 and push rod 19 disengage
When, if high pressure oil can promote spool 15 from B mouthfuls of entrance, high pressure oil so that B mouthfuls are in connected state with A mouthfuls, into B oral fluid pressures
Oil can be from A mouthfuls of outflows；When mandril 18 and push rod 19 disengage, high pressure oil from A mouthful into fashionable, understand by high pressure oil pressure by spool 15
On the conical surface of valve body 16 so that A mouthfuls are in disconnected state with B mouthfuls；When mandril 18 and push rod 19 disengage, fluid from
A mouthfuls of entrance, if at this time, controlling the high pressure oil of oil circuit, spool 15 understands the conical surface that valve body 16 is pushed away by high pressure oil from C mouthful into fashionable,
So that A mouthfuls are in connected state with B mouthfuls, so will be from B mouthfuls of outflows from the fluid of A mouthfuls of entrance.
Referring to Fig. 1, Fig. 3, manual pump assembly 10 is mainly made of three position four-way directional control valve 8, safety valve 11, manual pump 12.
Three position four-way directional control valve 8 has three operating positions, when reversal valve 8 spool be in I when, P1 mouthful connect with P2 mouthfuls, P3 mouthfuls and
P4 mouthfuls of connections；When spool is in II, P1 mouthfuls of cut-offs, P2 mouthfuls, three mouthfuls of P3 mouthfuls, P4 mouths connections；Spool be in III when, P1 mouthful and
P4 mouthfuls of connections, P3 mouthfuls connect with P2 mouthfuls.Wherein I is lift location, and II is road location, and III is position of pulling back.
12 oilers of pump connection fuel tank 9, oil outlet connect the P1 mouths of reversal valve 8 manually.
Safety valve 11 is overflow valve, and oil outlet connection fuel tank 9, oiler connection is manual to pump 12 oil outlets.
The C mouths of hydraulic control one-way valve 2 connect master cylinder rod chamber 4 and auxiliary oil cylinder rod chamber 6.
The B mouths connection master cylinder rodless cavity 3 and auxiliary oil cylinder rodless cavity 5 of hydraulic control one-way valve 2.
12 oil outlets of pump, the P2 mouths of reversal valve 8 connect the A mouths of hydraulic control one-way valve 2 manually for the P1 mouths connection of reversal valve 8；Change
Fuel tank 9 is connected to the P3 mouths of valve 8；The P4 mouths connection master cylinder rod chamber 4 and auxiliary oil cylinder rod chamber 6 of reversal valve 8.
The course of work is as follows：
When referring to Fig. 1,2,3, lifting driver's cabin, that is, releasing cylinder piston rod, the mandril 18 in master cylinder assembly 1
Contact condition is in push rod 19, the A mouths of hydraulic control one-way valve 2 are connected with B mouthfuls, and the 3-position 4-way on manual pump assembly 10 is commutated
Valve 8 is rotated to I, manipulates pump 12 manually, high pressure oil will by the P1 mouths of reversal valve 8, P2 mouthfuls and hydraulic control one-way valve 2 B mouths,
A mouthfuls arrive separately at (master cylinder assembly 1) master cylinder rodless cavity 3 and (auxiliary oil cylinder assembly 7) auxiliary oil cylinder rodless cavity 5 by pipeline
In, cylinder piston rod is released (super right end is released), and the hydraulic oil in master cylinder rod chamber 4 and auxiliary oil cylinder rod chamber 6 then can
After being converged together by pipeline, returned to by the P4 mouths of reversal valve 8, P3 mouthfuls in the fuel tank 9 in manual pump assembly 10.Lifting
Cheng Zhong, when the mandril 18 in master cylinder assembly 1 is in push rod 19 to be disengaged, the high pressures of B mouthfuls of entrance in hydraulic control one-way valve 2
Oil can open spool 15 (spool moves downward), and fluid can arrive separately at (master cylinder assembly 1) master cylinder rodless cavity 3 from A mouthfuls
In (auxiliary oil cylinder assembly 7) auxiliary oil cylinder rodless cavity 5, the hydraulic oil oil return in master cylinder rodless cavity 3 and auxiliary oil cylinder rodless cavity 5 is same
It is upper described, in this way, lifting action can be achieved.
Referring to Fig. 1,2,3, driver's cabin of pulling back, that is, when withdrawing cylinder piston rod, the mandril 18 in master cylinder assembly 1
Separating contacting state is in push rod 19, the three position four-way directional control valve 8 on manual pump assembly 10 is rotated to III, is manipulated manual
Pump 12, high pressure oil will arrive separately at master cylinder assembly 1 and auxiliary oil cylinder assembly 7 by the P1 mouths of reversal valve 8, P4 mouthfuls by pipeline
Rod chamber 4 and 6 in, while reach in hydraulic control one-way valve 2 C mouthfuls, spool 15 can be opened by reaching C mouthful of high pressure oil so that A mouthfuls with
B mouthfuls of connections, in this way, the high pressure oil in the rod chamber 4 and 6 of arrival master cylinder assembly 1 and auxiliary oil cylinder assembly 7 can make cylinder piston rod
Retract, and rodless cavity 3 and the hydraulic oil in 5 can then be converged by pipeline together with after, A mouths through hydraulic control one-way valve 2, B mouthfuls, commutate
The P2 mouths of valve 8, P3 mouthfuls return in the fuel tank 9 in manual pump assembly 10, so can both realize the action of pulling back of oil cylinder.Driver's cabin returns
Fall behind, the mandril 18 in master cylinder assembly 1 is in contact condition with push rod 19 so that the A mouths of hydraulic control one-way valve 2 are connected with B mouthfuls.
Referring to Fig. 1,2,3, after falling driver's cabin after rise, that is, after withdrawing cylinder piston rod, by manual pump assembly 10
Three position four-way directional control valve 8 is rotated to II (while the mandril 18 in master cylinder assembly 1 with push rod 19 be in compressive state), at once
Truck position.When driving, with vehicle up-down vibration can occur for driver's cabin, and oil cylinder piston is allowed for as driver's cabin carries out
Lower floating.Oil cylinder piston floats, oil cylinder piston is floated downward, and the supplement process of fluid is as follows：
When needing oil cylinder piston to float, i.e., when piston rod pulls out, 4 He of rod chamber of master cylinder assembly 1 and auxiliary oil cylinder assembly 7
After fluid in rod chamber 6 reaches the P4 mouths of reversal valve 8 by pipeline together, the fuel tank 9 that returns to manual pump assembly 10 through P3 mouthfuls
In, further, since the mandril 18 in master cylinder assembly 1 is in compressive state with push rod 19 so that the A mouths and B of hydraulic control one-way valve 2
Mouthful connection, thus fluid in fuel tank 9 at the same time can by P3 mouths of reversal valve 8, P2 mouthfuls, A mouths through hydraulic control one-way valve 2 with B mouthfuls
In the rodless cavity 3 and rodless cavity 5 that arrive separately at master cylinder assembly 1 and auxiliary oil cylinder assembly 7, the supplement of fluid is completed, completes oil cylinder
Piston floats.
When needing oil cylinder piston to float downward, i.e., when piston rod is pressed into, at the mandril 18 in master cylinder assembly 1 and push rod 19
In contact condition so that the A mouths of hydraulic control one-way valve 2 are connected with B mouthfuls, 3 He of rodless cavity of master cylinder assembly 1 and auxiliary oil cylinder assembly 7
Fluid in rodless cavity 5 reaches the B mouths of hydraulic control one-way valve 2 by pipeline together, from A mouthfuls of outflows, P2 mouths, P3 through reversal valve 8
Mouth is returned in the fuel tank 9 in manual pump assembly 10.Meanwhile the fluid in fuel tank 9 can by the P3 mouths of reversal valve 8, P4 mouthfuls, pass through
Pipeline is arrived separately in the rod chamber 4 and 6 of master cylinder assembly 1 and auxiliary oil cylinder assembly 7, completes the supplement of fluid, is completed oil cylinder and is lived
Plug is floated downward.
In this way, oil cylinder just completes the action to fluctuate, that is, oil cylinder can carry out up and down together with driver's cabin
Float.
Claims (10)
1. a kind of non-differential driver's cabin twin-tub hoisting system, it is characterised in that including by 1 master cylinder assembly (1), 1 secondary oil
Cylinder and 1 manual pump assembly (10) composition；
Master cylinder assembly (1) is mainly made of oil cylinder (17) and hydraulic control one-way valve (2)；There is mandril (18) in master cylinder (17)；Top
Bar (18) is fixed with piston, and mandril is located in rodless cavity, and the axis rodless cavity axis of mandril overlaps；Mandril (18) front end is circle
The conical surface；
Hydraulic control one-way valve (2) is mainly made of spring (14), spool (15), valve body (16), push rod (19), spool (15), valve body
(16) taper-face contact, spring are located at spool rear end；Push rod (19) is fixedly connected with spool (15), and push rod (19) is stretched out from valve body,
The height of push rod (19) front end is higher than the lower limit of mandril (18) circular conical surface, push rod (19) is coordinated with mandril (18), will push away
Bar (19) is compressed to spool direction；Push rod (19) compression strap movable valve plug (15) compresses spring, spool (15) conical surface is bored with valve body
Face separates, and makes B mouthfuls to be in connected state with A mouthfuls；For high pressure oil from C mouthfuls into fashionable, B mouthfuls are in connected state with A mouthfuls；
Manual pump assembly (10) mainly pumps (12) by reversal valve (8), manually and forms；Reversal valve (8) is three position four-way directional control valve, its
There are three operating positions, when the spool of reversal valve (8) is in I, P1 mouthfuls connect with P2 mouthfuls, and P3 mouthfuls connect with P4 mouthfuls；Spool
In II when, P1 mouthfuls of cut-offs, P2 mouthful, P3 mouthfuls, three mouthfuls of P4 mouths connect；When spool is in III, P1 mouthfuls connect with P4 mouthfuls, P3 mouthfuls
Connected with P2 mouthfuls；Pump (12) oiler connection fuel tank manually, the P1 mouths of the oil outlet connection reversal valve pumped manually；
The C mouths of hydraulic control one-way valve (2) connect master cylinder rod chamber and auxiliary oil cylinder rod chamber；The B mouths connection of hydraulic control one-way valve
Master cylinder rodless cavity and auxiliary oil cylinder rodless cavity；
Pump (12) oil outlet, the P2 mouths of reversal valve connect the A mouths of hydraulic control one-way valve manually for the P1 mouths connection of reversal valve (8)；Commutation
The P3 mouths connection fuel tank of valve；The P4 mouths connection master cylinder rod chamber and auxiliary oil cylinder rod chamber of reversal valve (8).
2. a kind of non-differential driver's cabin twin-tub hoisting system according to claim 1, it is characterised in that when reversal valve is in II
During position, while the compression push rod state of the mandril (18) in master cylinder assembly so that the A mouths of hydraulic control one-way valve are connected with B mouthfuls；Oil
The supplement process of liquid is as follows：Fluid in master cylinder rod chamber and auxiliary oil cylinder rod chamber reaches the P4 mouths of reversal valve by pipeline
Afterwards, returned to through P3 mouthfuls in fuel tank, at the same the fluid in fuel tank by the P3 mouths of reversal valve successively, P2 mouthfuls, the A through hydraulic control one-way valve
Mouth is arrived separately in master cylinder rodless cavity and auxiliary oil cylinder rodless cavity with B mouthfuls.
3. a kind of non-differential driver's cabin twin-tub hoisting system according to claim 1, it is characterised in that when reversal valve is in II
During position, while the compression push rod state of the mandril (18) in master cylinder assembly so that the A mouths of hydraulic control one-way valve are connected with B mouthfuls；Oil
The supplement process of liquid is as follows：Fluid in master cylinder rodless cavity and auxiliary oil cylinder rodless cavity reaches hydraulic control one-way valve together by pipeline
(2) B mouths, from A mouthfuls outflow, the P2 mouths through reversal valve (8), P3 mouthfuls return in fuel tank；The fluid in fuel tank can lead to successively at the same time
Cross reversal valve (8) P3 mouths, P4 mouthfuls, arrived separately at by pipeline in master cylinder rod chamber and auxiliary oil cylinder rod chamber.
4. a kind of non-differential driver's cabin twin-tub hoisting system according to claim 1, it is characterised in that when driving, drive
Room is in falling state, and reversal valve is rotated to II.
A kind of 5. non-differential driver's cabin twin-tub hoisting system according to claim 1, it is characterised in that fall driver's cabin after rise,
It is exactly after cylinder piston rod is withdrawn, the mandril of master cylinder assembly is in the state of compression hydraulic control one-way valve (2) push rod.
6. a kind of non-differential driver's cabin twin-tub hoisting system according to claim 1, it is characterised in that rodless cavity is located at main oil
In the mandril directed cavity of cylinder left end, which is also asphalt channel.
A kind of 7. non-differential driver's cabin twin-tub hoisting system according to claim 1, it is characterised in that hydraulic control one-way valve (2)
Further include valve deck composition.
A kind of 8. non-differential driver's cabin twin-tub hoisting system according to claim 1, it is characterised in that manual pump assembly (10)
Safety valve (11) is further included, safety valve (11) is overflow valve, its oil outlet connection fuel tank, pump (12) is fuel-displaced manually for oiler connection
Mouthful.
9. a kind of non-differential driver's cabin twin-tub hoisting system according to claim 1, it is characterised in that master cylinder, auxiliary oil cylinder
Piston rod act on driver's cabin.
10. a kind of non-differential driver's cabin twin-tub hoisting system according to claim 1, it is characterised in that master cylinder, auxiliary oil cylinder
For non-differential cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711362230.2A CN107939759B (en) | 2017-12-18 | 2017-12-18 | A kind of non-differential driver's cabin twin-tub hoisting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711362230.2A CN107939759B (en) | 2017-12-18 | 2017-12-18 | A kind of non-differential driver's cabin twin-tub hoisting system |
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| Publication Number | Publication Date |
|---|---|
| CN107939759A true CN107939759A (en) | 2018-04-20 |
| CN107939759B CN107939759B (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711362230.2A Active CN107939759B (en) | 2017-12-18 | 2017-12-18 | A kind of non-differential driver's cabin twin-tub hoisting system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538548A (en) * | 2018-12-18 | 2019-03-29 | 北奔重型汽车集团有限公司 | A kind of non-differential cab lifting system |
| CN112125202A (en) * | 2020-10-15 | 2020-12-25 | 北奔重型汽车集团有限公司 | Double-differential-cylinder lifting system of cab |
| CN116279853A (en) * | 2022-11-30 | 2023-06-23 | 徐工集团工程机械股份有限公司道路机械分公司 | Turnover cab of road roller and control method |
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| CN106762926A (en) * | 2016-11-22 | 2017-05-31 | 天津海安科技有限公司 | Pressure-adjustable and the electrohydraulic controlling mechanism of off-load |
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| CN102165200A (en) * | 2008-10-31 | 2011-08-24 | 日立建机株式会社 | Hydraulic drive device for construction machine |
| CN104421237A (en) * | 2013-09-03 | 2015-03-18 | 西安志越机电科技有限公司 | Hydraulic system for dumper lifting mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109538548A (en) * | 2018-12-18 | 2019-03-29 | 北奔重型汽车集团有限公司 | A kind of non-differential cab lifting system |
| CN109538548B (en) * | 2018-12-18 | 2024-03-15 | 北奔重型汽车集团有限公司 | Non-differential cab lifting system |
| CN112125202A (en) * | 2020-10-15 | 2020-12-25 | 北奔重型汽车集团有限公司 | Double-differential-cylinder lifting system of cab |
| CN116279853A (en) * | 2022-11-30 | 2023-06-23 | 徐工集团工程机械股份有限公司道路机械分公司 | Turnover cab of road roller and control method |
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|---|---|
| CN107939759B (en) | 2019-09-03 |
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