CN104728309B - A kind of operating method of the tractor clutch manipulation device with hydraulic booster - Google Patents
A kind of operating method of the tractor clutch manipulation device with hydraulic booster Download PDFInfo
- Publication number
- CN104728309B CN104728309B CN201510110056.7A CN201510110056A CN104728309B CN 104728309 B CN104728309 B CN 104728309B CN 201510110056 A CN201510110056 A CN 201510110056A CN 104728309 B CN104728309 B CN 104728309B
- Authority
- CN
- China
- Prior art keywords
- oil
- piston
- valve
- power
- clutch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- F16D48/04—Control by fluid pressure providing power assistance
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
A kind of operating method of the tractor clutch manipulation device with hydraulic booster, power-assisted oil cylinder is connected by clutch pedal by connecting fork with clutch pull rod, power-assisted oil cylinder provides pressure by the steering constant flow pump output pipe of tractor, the piston rod of power-assisted oil cylinder is connected by connecting fork with clutch pull rod, when driver's let slip the clutch, first power is provided to the choke valve in piston rod, the in-oil cylinder epicoele of power-assisted is set to produce pressure differential with cavity of resorption, piston rod is promoted to pull clutch pull rod, make clutch separation, realize the light control to clutch, increase the coefficient of torque reserve of clutch, reduce the steering force of driver, improve the operational comfort of driver.
Description
Technical field
The present invention relates to tractor clutch control technology field, especially a kind of tractor clutch with hydraulic booster
The operating method of manipulation device.
Background technology
At present, what the clutch release system of many tractors was used is all mechanical manipulation mechanism, with tractor work(
The continuous improvement of rate, the torque-transfer capability to clutch requires also higher, to increase the coefficient of torque reserve of clutch, generally
Using two methods of increasing clutch friction plate diameter and increasing disk spring thrust, but it is due to structure limitation, clutch
The space that friction plate diameter can be increased is very limited, therefore often improves clutch using the method for disk spring thrust is increased
Device coefficient of torque reserve, it is heavy that the increase of disk spring thrust result in clutch pedal steering force, adds driver's
Labor intensity, greatly reduces the handling comfort of tractor.
In view of the foregoing, a kind of operating method of the tractor clutch manipulation device with hydraulic booster is now developed.
The content of the invention
The invention aims to overcome deficiency of the prior art, there is provided a kind of tractor clutch with hydraulic booster
Power-assisted oil cylinder is connected by the operating method of device manipulation device, clutch pedal by connecting fork with clutch pull rod, power-assisted oil cylinder
Pressure is provided by the steering constant flow pump output pipe of tractor, the piston rod of power-assisted oil cylinder connects by connecting fork with clutch pull rod
Connect, when driver's let slip the clutch, provide power to the choke valve in piston rod first, make the in-oil cylinder epicoele of power-assisted
Pressure differential is produced with cavity of resorption, promotes piston rod to pull clutch pull rod, makes clutch separation, realize the light control to clutch
System.
The present invention to achieve these goals, is adopted the following technical scheme that：A kind of tractor clutch with hydraulic booster
The operating method of manipulation device, the tractor clutch manipulation device with hydraulic booster, be by：Clutch pedal, top plate,
Return spring, connection fork, clutch pull rod, power-assisted oil cylinder, oil inlet, oil-out, oil return opening, sprue, back-moving spring, valve rod,
Oil duct, safe valve passage, holds out against screw, safety valve spring, safety valve, horn mouth, oil return cavity, epicoele, cavity of resorption, piston rod,
Choke valve, nose cone, piston, contiguous block, oilhole are constituted；Clutch pedal is connected by the fixed support of return spring and driver's cabin
Connect, the top plate of clutch pedal is arranged in U-shaped connection fork, and the U-shaped mouth of connection fork is connected by connecting pin with clutch pull rod,
The middle part of connection fork is connected with the piston rod of power-assisted oil cylinder；Power-assisted oil cylinder sets gradually oil inlet, oil-out, oil return from the bottom to top
Mouthful, flexible pipe is set between oil inlet and steering constant flow pump delivery outlet, flexible pipe is set between oil-out and hydraulic steering gear oil inlet,
Set between oil return opening and steering constant flow pump fuel tank oil inlet and middle part in hanger, power-assisted oil cylinder is set above flexible pipe, power-assisted oil cylinder
Set and constitute oil return cavity in sprue, power-assisted oil cylinder above sprue, the endoporus of sprue sets valve rod；Power-assisted oil cylinder inner piston rod
Contiguous block is set between one end and piston, and described piston rod, contiguous block and piston are integrally formed, and described piston, which is arranged on, to be helped
Between power cylinder inwall and valve rod, the both sides of contiguous block are symmetrical arranged oilhole, under being constituted between contiguous block and power-assisted oil cylinder inner wall
Back-moving spring is set in chamber, power-assisted oil cylinder between sprue and piston, and back-moving spring is arranged on the periphery of valve rod, sprue, piston with
Epicoele is constituted between stem outer circumference, described oil inlet is connected with cavity of resorption, and oil-out is connected with epicoele, oil return opening and oil return cavity
Connection；Set in described valve rod sets both sides above safe valve passage, valve rod to be symmetrical arranged oil above oil duct, valve rod internal oil channel
Hole, described oilhole is connected with safe valve passage, and the diameter of the safe valve passage is more than in the diameter of oil duct, safe valve passage
From top to bottom set gradually both sides below holds out against screw, safety valve spring, safety valve, valve rod and be symmetrical arranged oilhole, described oil
Hole is connected with oil duct；The inner chamber activity of described piston rod sets choke valve, and one end of choke valve protrudes piston rod and and top plate
Contact, the other end protrudes piston rod and sets correspondence nose cone below nose cone, described valve rod to set horn mouth.
When clutch pedal is not operated, choke valve is in open mode, turns to the hydraulic oil in constant flow pump through oil-feed
Mouth enters cavity of resorption, is flowed into from the oilhole of contiguous block in piston, is upwardly into the oil duct of valve rod, the oilhole through both sides below valve rod enters
Enter epicoele, hydraulic steering gear is flowed into through oil-out, the oil pressure for flowing into oil inlet is less than epicoele and cavity of resorption in 3 MPas, power-assisted oil cylinder
Oil pressure it is equal, the in-oil cylinder pressure of power-assisted is kept poised state.
It is normal in use, choke valve in pin stepping on clutch pedal, the upward jack-up piston rod of top plate of clutch pedal, section
Flow valve and be in semi-closed state, the nose cone of choke valve is upwardly into the horn mouth of valve rod, the oil pressure into oil inlet is 3~10
MPa, the flow that the hydraulic oil in piston enters valve rod internal oil channel reduces, and the flow of intracavitary reduces in inflow, makes the oil of lower intracavitary
Pressure increase, promotes piston to be moved up along power-assisted oil cylinder inner wall, piston driving piston rod is moved up, and piston rod is pitched by connecting
Clutch pull rod is driven to produce upward pulling force；The flow that choke valve moves up and down control inflow oil duct produces different thrusts,
When nose cone is close to horn mouth, the oil pressure increase of lower intracavitary increases the thrust of piston, when nose cone is away from horn mouth, lower intracavitary
Oil pressure reduce the thrust of piston reduced, the coefficient of elasticity of the back-moving spring is 1.58N/mm-1.54N/mm, lower intracavitary oil
When pressure is more than upper intracavitary oil pressure, lower intracavitary oil pressure is more than elastic force of the back-moving spring to piston to the thrust of piston, and piston is to moving up
It is dynamic；When lower intracavitary oil pressure is less than or equal to upper intracavitary oil pressure, lower intracavitary oil pressure is less than back-moving spring to piston to the thrust of piston
Elastic force, back-moving spring promote piston reset downwards, piston rod and connection fork clutch pull rod is set back downwards.
During steering, steering wheel is killed, the hydraulic oil in hydraulic steering gear stops outflow, stops the hydraulic oil of intracavitary
Flowed to hydraulic steering gear, the oil pressure into oil inlet is more than 12 MPas, and the oil pressure in cavity of resorption, epicoele and oil duct is with oil inlet
The increase of oil pressure and increase, the oil pressure in oil duct is more than safety valve spring to the thrust of safety valve to the elastic force of safety valve, makes peace
Full valve is moved up along safety valve vias inner walls, and the hydraulic oil in oil duct flows into safe valve passage, and oil return cavity is flowed into through oilhole,
Flowed into from oil return opening and turn to constant flow pump fuel tank；Steering wheel is gone back to, when being less than 12 MPas into the oil pressure of oil inlet, the oil in oil duct
Press and be less than elastic force of the safety valve spring to safety valve to the thrust of safety valve, safety valve spring promotes safety valve to recover former downwards
Position, makes the hydraulic oil in oil duct stop flow into safe valve passage, the coefficient of elasticity of described safety valve spring is 2.11N/mm-
2.0N/mm, meanwhile, the hydraulic oil in hydraulic steering gear normally flows out, and makes the hydraulic oil of intracavitary normal to hydraulic steering gear stream
It is dynamic, revert to normal operating condition in power-assisted oil cylinder.
The sliding stroke of the piston of the piston rod is 59mm-60mm, the distance between valve rod lower end and contiguous block end face
For 58.5mm-59.5mm.
The beneficial effects of the invention are as follows：Power-assisted oil cylinder is connected by clutch pedal by connecting fork with clutch pull rod, is helped
Power cylinder provides pressure by the steering constant flow pump output pipe of tractor, and the piston rod of power-assisted oil cylinder is by connecting fork and clutch
Pull bar is connected, when driver's let slip the clutch, is provided power to the choke valve in piston rod first, is made in power-assisted oil cylinder
Epicoele and cavity of resorption produce pressure differential, promote piston rod to pull clutch pull rod, make clutch separation, realize to clutch
Easily control, increases the coefficient of torque reserve of clutch, reduces the steering force of driver, and the operation for improving driver is relaxed
Appropriateness.
The present invention is simple in construction, and mentality of designing is novel, reasonable in design, easy to operate, and using effect is preferable, manufacturing cost
Low, good product quality is durable, can be used for a long time and be hardly damaged, and is adapted to popularity application.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is, general assembly cross-sectional view；
In Fig. 1：Clutch pedal 1, top plate 1-2, return spring 2, connection are pitched 3, clutch pull rod 4, power-assisted oil cylinder 5, entered
Hydraulic fluid port 6, oil-out 7, oil return opening 8, sprue 9, back-moving spring 10, valve rod 11, oil duct 11-2, safe valve passage 11-3, hold out against spiral shell
Silk 11-4, safety valve spring 11-5, safety valve 11-6, horn mouth 11-7, oil return cavity 12, epicoele 13, cavity of resorption 14, piston rod
15th, choke valve 15-2, nose cone 15-3, piston 15-4, contiguous block 15-5, oilhole 16.
Embodiment
The present invention is described in further detail with embodiment with reference to embodiment：
Embodiment 1
Clutch pedal 1 is connected by return spring 2 with the fixed support of driver's cabin, and the top plate 1-2 of clutch pedal 1 is set
Put in U-shaped connection fork 3, the U-shaped mouth of connection fork 3 is connected by connecting pin with clutch pull rod 4, the middle part of connection fork 3 is with helping
The piston rod 15 of power cylinder 5 is connected；Power-assisted oil cylinder 5 sets gradually oil inlet 6, oil-out 7, oil return opening 8, oil inlet from the bottom to top
Flexible pipe is set between 6 and steering constant flow pump delivery outlet, flexible pipe, oil return opening 8 are set between oil-out 7 and hydraulic steering gear oil inlet
Flexible pipe is set between steering constant flow pump fuel tank oil inlet, and the top of power-assisted oil cylinder 5 sets middle part setting in hanger, power-assisted oil cylinder 5
The top of sprue 9 constitutes oil return cavity 12 in sprue 9, power-assisted oil cylinder 5, and the endoporus of sprue 9 sets valve rod 11；It is living in power-assisted oil cylinder 5
Contiguous block 15-5, described piston rod 15, contiguous block 15-5 and piston 15-4 are set between one end of stopper rod 15 and piston 15-4
Integrally formed, described piston 15-4 is arranged between the inwall of power-assisted oil cylinder 5 and valve rod 11, and contiguous block 15-5 both sides are symmetrically set
Put oilhole 16, cavity of resorption 14 constituted between contiguous block 15-5 and the inwall of power-assisted oil cylinder 5, in power-assisted oil cylinder 5 sprue 9 and piston 15-4 it
Between set back-moving spring 10, back-moving spring 10 is arranged on the periphery of valve rod 11, between sprue 9, piston 15-4 and the periphery of valve rod 11
Epicoele 13 is constituted, described oil inlet 6 is connected with cavity of resorption 14, and oil-out 7 is connected with epicoele 13, oil return opening 8 and oil return cavity 12
Connection；Set in described valve rod 11 and safe valve passage 11-3, valve rod 11 are set above oil duct 11-2, the internal oil channel 11-2 of valve rod 11
Top both sides are symmetrical arranged oilhole 16, and described oilhole 16 is connected with safe valve passage 11-3, the safe valve passage 11-3's
Diameter, which is more than in oil duct 11-2 diameter, safe valve passage 11-3, from top to bottom sets gradually holds out against screw 11-4, safety valve bullet
Spring 11-5, safety valve 11-6, the lower section both sides of valve rod 11 are symmetrical arranged oilhole 16, and described oilhole 16 is connected with oil duct 11-2；Institute
The inner chamber activity for the piston rod 15 stated sets choke valve 15-2, choke valve 15-2 one end protrude piston rod 15 and with top plate 1-2
Contact, the other end protrudes piston rod 15 and sets nose cone 15-3, the described lower section of valve rod 11 correspondence nose cone 15-3 to set loudspeaker
Mouth 11-7.
Embodiment 2
When clutch pedal 1 is not operated, choke valve 15-2 is in open mode, turns to the hydraulic oil warp in constant flow pump
Oil inlet 6 enters cavity of resorption 14, is flowed into from contiguous block 15-5 oilhole 16 in piston 15-4, is upwardly into the oil duct 11- of valve rod 11
2, the oilhole 16 through the lower section both sides of valve rod 11 enters epicoele 13, and hydraulic steering gear is flowed into through oil-out 7, flows into the oil of oil inlet 6
Pressure is less than 3 MPas, and epicoele 13 is equal with the oil pressure of cavity of resorption 14 in power-assisted oil cylinder 5, the pressure in power-assisted oil cylinder 5 is kept equilibrium-like
State.
Embodiment 3
It is normal in use, section in pin stepping on clutch pedal 1, the upward jack-up piston rods 15 of top plate 1-2 of clutch pedal 1
Valve 15-2 is flowed, choke valve 15-2 is in semi-closed state, and choke valve 15-2 nose cone 15-3 is upwardly into the loudspeaker of valve rod 11
Mouthful 11-7, the oil pressure into oil inlet 6 is that hydraulic oil in 3~10 MPas, piston 15-4 enters the internal oil channel 11-2's of valve rod 11
Flow reduces, and the flow flowed into epicoele 13 reduces, and increases the oil pressure in cavity of resorption 14, promotes piston 15-4 along power-assisted oil cylinder 5
Inwall is moved up, and piston 15-4 drives piston rod 15 to move up, and piston rod 15 drives clutch pull rod 4 by connecting fork 3
Produce upward pulling force；The flow that choke valve 15-2 moves up and down control inflow oil duct 11-2 produces different thrusts, nose cone
When 15-3 is close to horn mouth 11-7, the oil pressure increase in cavity of resorption 14 increases piston 15-4 thrust, and nose cone 15-3 is away from loudspeaker
During mouth 11-7, the oil pressure in cavity of resorption 14 reduces to be reduced to piston 15-4 thrust, and the coefficient of elasticity of the back-moving spring 10 is
When oil pressure is more than oil pressure in epicoele 13 in 1.58N/mm-1.54N/mm, cavity of resorption 14, thrust of the oil pressure to piston 15-4 in cavity of resorption 14
More than elastic force of the back-moving spring 10 to piston 15-4, piston 15-4 is moved up；Oil pressure is less than or equal to epicoele 13 in cavity of resorption 14
During interior oil pressure, oil pressure is less than back-moving spring 10 to piston 15-4 elastic force, back-moving spring to piston 15-4 thrust in cavity of resorption 14
10 promotion piston 15-4 reset downwards, and piston rod 15 and connection fork 3 make clutch pull rod 4 set back downwards.
Embodiment 4
During steering, steering wheel is killed, the hydraulic oil in hydraulic steering gear stops outflow, stops the hydraulic oil in epicoele 13
Only flowed to hydraulic steering gear, the oil pressure into oil inlet 6 is more than 12 MPas, the oil in cavity of resorption 14, epicoele 13 and oil duct 11-2
Pressure increases with the increase of the oil pressure of oil inlet 6, and the oil pressure in oil duct 11-2 is more than safety valve bullet to safety valve 11-6 thrust
Spring 11-5 makes safety valve 11-6 be moved up along safe valve passage 11-5 inwalls, in oil duct 11-2 safety valve 11-6 elastic force
Hydraulic oil flow into safe valve passage 11-5, flow into oil return cavity 12 through oilhole 16, flowed into from oil return opening 8 and turn to constant current pump oil
Case；Steering wheel is gone back to, and when being less than 12 MPas into the oil pressure of oil inlet 6, the oil pressure in oil duct 11-2 is pushed away to safety valve 11-6
Power is less than elastic force of the safety valve spring 11-5 to safety valve 11-6, and safety valve spring 11-5 promotes safety valve 11-6 to recover former downwards
Position, makes the hydraulic oil in oil duct 11-2 stop flow into safe valve passage 11-5, described safety valve spring 11-5 coefficient of elasticity
For 2.11N/mm-2.0N/mm, meanwhile, the hydraulic oil in hydraulic steering gear normally flows out, make the hydraulic oil in epicoele 13 normal to
Hydraulic steering gear is flowed, and normal operating condition is reverted in power-assisted oil cylinder 5.
Embodiment 5
The piston 15-4 of the piston rod 15 sliding stroke is 59mm-60mm, the lower end of valve rod 11 and contiguous block 15-5 ends
The distance between face is 58.5mm-59.5mm.
Claims (5)
1. a kind of operating method of the tractor clutch manipulation device with hydraulic booster, the tractor with hydraulic booster from
Clutch manipulation device, be by：Clutch pedal (1), top plate (1-2), return spring (2), connection fork (3), clutch pull rod
(4), power-assisted oil cylinder (5), oil inlet (6), oil-out (7), oil return opening (8), sprue (9), back-moving spring (10), valve rod (11),
Oil duct (11-2), safe valve passage (11-3), holds out against screw (11-4), safety valve spring (11-5), safety valve (11-6), loudspeaker
Mouthful (11-7), oil return cavity (12), epicoele (13), cavity of resorption (14), piston rod (15), choke valve (15-2), nose cone (15-3),
Piston (15-4), contiguous block (15-5), oilhole (16) are constituted；It is characterized in that：Clutch pedal (1) passes through return spring (2)
It is connected with the fixed support of driver's cabin, the top plate (1-2) of clutch pedal (1) is arranged in U-shaped connection fork (3), connection fork (3)
U-shaped mouth be connected by connecting pin with clutch pull rod (4), the piston rod (15) of middle part and the power-assisted oil cylinder (5) of connection fork (3)
Connection；Power-assisted oil cylinder (5) sets gradually oil inlet (6), oil-out (7), oil return opening (8) from the bottom to top, and oil inlet (6) is with turning to
Flexible pipe is set between constant flow pump delivery outlet, flexible pipe is set between oil-out (7) and hydraulic steering gear oil inlet, oil return opening (8) with
Set between steering constant flow pump fuel tank oil inlet sets middle part in hanger, power-assisted oil cylinder (5) to set above flexible pipe, power-assisted oil cylinder (5)
Put and oil return cavity (12) is constituted above sprue (9), power-assisted oil cylinder (5) interior sprue (9), the endoporus of sprue (9) sets valve rod (11)；
Contiguous block (15-5), described piston rod are set between one end of power-assisted oil cylinder (5) inner piston rod (15) and piston (15-4)
(15), contiguous block (15-5) and piston (15-4) are integrally formed, described piston (15-4) be arranged on power-assisted oil cylinder (5) inwall with
Between valve rod (11), the both sides of contiguous block (15-5) are symmetrical arranged oilhole (16), contiguous block (15-5) and power-assisted oil cylinder (5) inwall
Between constitute cavity of resorption (14), between power-assisted oil cylinder (5) interior sprue (9) and piston (15-4) set back-moving spring (10), reset bullet
Spring (10) is arranged on the periphery of valve rod (11), and epicoele (13) is constituted between sprue (9), piston (15-4) and valve rod (11) periphery,
Described oil inlet (6) is connected with cavity of resorption (14), and oil-out (7) is connected with epicoele (13), oil return opening (8) and oil return cavity (12)
Connection；Set in described valve rod (11) and safe valve passage is set above oil duct (11-2), valve rod (11) internal oil channel (11-2)
Both sides are symmetrical arranged oilhole (16) above (11-3), valve rod (11), and described oilhole (16) is connected with safe valve passage (11-3),
The diameter of the safe valve passage (11-3) is more than in the diameter of oil duct (11-2), safe valve passage (11-3) from top to bottom successively
Both sides below holds out against screw (11-4), safety valve spring (11-5), safety valve (11-6), valve rod (11) are set to be symmetrical arranged oilhole
(16), described oilhole (16) is connected with oil duct (11-2)；The inner chamber activity of described piston rod (15) sets choke valve (15-
2), one end of choke valve (15-2) protrudes piston rod (15) and contacted with top plate (1-2), and the other end protrudes piston rod (15) and set
Correspondence nose cone (15-3) sets horn mouth (11-7) below nose cone (15-3), described valve rod (11).
2. a kind of operating method of tractor clutch manipulation device with hydraulic booster according to claim 1, it is special
Levy and be：When clutch pedal (1) is not operated, choke valve (15-2) is in open mode, turns to the hydraulic pressure in constant flow pump
Oil enters cavity of resorption (14) through oil inlet (6), is flowed into from contiguous block (15-5) oilhole (16) in piston (15-4), is upwardly into valve
The oil duct (11-2) of bar (11), the oilhole (16) through both sides below valve rod (11) enters epicoele (13), through oil-out (7) influent
Steering gear is pressed, the oil pressure for flowing into oil inlet (6) is less than 3 MPas, the oil pressure phase of power-assisted oil cylinder (5) interior epicoele (13) and cavity of resorption (14)
Deng making pressure in power-assisted oil cylinder (5) keep poised state.
3. a kind of operating method of tractor clutch manipulation device with hydraulic booster according to claim 1, it is special
Levy and be：Normally in use, pin stepping on clutch pedal (1), the upward jack-up piston rod of top plate (1-2) of clutch pedal (1)
(15) choke valve (15-2) in, choke valve (15-2) is in semi-closed state, the nose cone (15-3) of choke valve (15-2) to
The horn mouth (11-7) of upper entrance valve rod (11), the oil pressure into oil inlet (6) is 3~10 MPas, the liquid in piston (15-4)
The flow that force feed enters valve rod (11) internal oil channel (11-2) reduces, and the flow flowed into epicoele (13) reduces, and makes in cavity of resorption (14)
Oil pressure increase, promote piston (15-4) moved up along power-assisted oil cylinder (5) inwall, piston (15-4) drive piston rod (15) to
Upper movement, piston rod (15) drives clutch pull rod (4) to produce upward pulling force by connecting fork (3)；On choke valve (15-2)
The flow that lower mobile controlling stream enters oil duct (11-2) produces different thrusts, when nose cone (15-3) is close to horn mouth (11-7),
Oil pressure increase in cavity of resorption (14) increases the thrust of piston (15-4), when nose cone (15-3) is away from horn mouth (11-7), under
Oil pressure in chamber (14) reduces to be reduced to the thrust of piston (15-4), and the coefficient of elasticity of the back-moving spring (10) is 1.58N/
Mm-1.54N/mm, when cavity of resorption (14) interior oil pressure is more than epicoele (13) interior oil pressure, cavity of resorption (14) interior oil pressure is pushed away to piston (15-4)
Power is more than elastic force of the back-moving spring (10) to piston (15-4), and piston (15-4) is moved up；Cavity of resorption (14) interior oil pressure be less than or
During equal to epicoele (13) interior oil pressure, cavity of resorption (14) interior oil pressure is less than back-moving spring (10) to piston to the thrust of piston (15-4)
The elastic force of (15-4), back-moving spring (10) promotes piston (15-4) to reset downwards, piston rod (15) and connection fork (3) it is downward make from
Clutch pull bar (4) sets back.
4. a kind of operating method of tractor clutch manipulation device with hydraulic booster according to claim 1, it is special
Levy and be：During steering, steering wheel is killed, the hydraulic oil in hydraulic steering gear stops outflow, makes the hydraulic oil in epicoele (13)
Stop flowing to hydraulic steering gear, the oil pressure into oil inlet (6) is more than 12 MPas, cavity of resorption (14), epicoele (13) and oil duct
Oil pressure in (11-2) increases with the increase of oil inlet (6) oil pressure, and the oil pressure in oil duct (11-2) is to safety valve (11-6)
Thrust be more than safety valve spring (11-5) to safety valve (11-6) elastic force, make safety valve (11-6) along safe valve passage 11-5
Inwall is moved up, and the hydraulic oil in oil duct (11-2) flows into safe valve passage 11-5, and oil return cavity is flowed into through oilhole (16)
(12), flowed into from oil return opening (8) and turn to constant flow pump fuel tank；Steering wheel is gone back to, and the oil pressure into oil inlet (6) is less than 12 MPas
When, the oil pressure in oil duct (11-2) is less than safety valve spring (11-5) to safety valve (11-6) to the thrust of safety valve (11-6)
Elastic force, safety valve spring (11-5) promotes safety valve (11-6) to set back downwards, stops the hydraulic oil in oil duct (11-2)
Safe valve passage 11-5 is flowed into, the coefficient of elasticity of described safety valve spring (11-5) is 2.11N/mm-2.0N/mm, meanwhile, liquid
Hydraulic oil in pressure steering gear normally flows out, and the hydraulic oil in epicoele (13) is normally flowed to hydraulic steering gear, power-assisted oil cylinder
(5) normal operating condition is reverted in.
5. a kind of operating method of tractor clutch manipulation device with hydraulic booster according to claim 1, it is special
Levy and be：The sliding stroke of the piston (15-4) of the piston rod (15) is 59mm-60mm, valve rod (11) lower end and contiguous block
The distance between (15-5) end face is 58.5mm-59.5mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110056.7A CN104728309B (en) | 2015-03-06 | 2015-03-06 | A kind of operating method of the tractor clutch manipulation device with hydraulic booster |
| PCT/CN2015/081160 WO2016141638A1 (en) | 2015-03-06 | 2015-06-10 | Operation method for tractor clutch operation device having hydraulic assistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110056.7A CN104728309B (en) | 2015-03-06 | 2015-03-06 | A kind of operating method of the tractor clutch manipulation device with hydraulic booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104728309A CN104728309A (en) | 2015-06-24 |
| CN104728309B true CN104728309B (en) | 2017-08-22 |
Family
ID=53452537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510110056.7A Active CN104728309B (en) | 2015-03-06 | 2015-03-06 | A kind of operating method of the tractor clutch manipulation device with hydraulic booster |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104728309B (en) |
| WO (1) | WO2016141638A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387025B (en) * | 2015-12-14 | 2017-08-29 | 贵州红林机械有限公司 | Power-assisted cylinder moving stroke and thrust-measuring device |
| CN106224407B (en) * | 2016-07-18 | 2017-11-17 | 洛阳市伟林液压机械有限公司 | A kind of tractor clutch operating mechanism with hydraulic booster |
| CN106050982B (en) * | 2016-07-22 | 2018-12-21 | 长乐圆明工业设计有限公司 | The lossless installation power assisting device of clutch |
| CN108105279B (en) * | 2016-11-25 | 2021-02-12 | 舍弗勒技术股份两合公司 | Clutch release mechanism and clutch master cylinder |
| CN108312845B (en) * | 2018-02-05 | 2023-06-27 | 洛阳市伟林液压机械有限公司 | Hydraulic automatic-adjustment tractor clutch pull rod adjusting device and method |
| CN108843703B (en) * | 2018-08-24 | 2023-11-07 | 玉环奥恒机械有限公司 | Hydraulic booster |
| CN113153933B (en) * | 2021-04-14 | 2023-01-10 | 山东悍沃农业装备有限公司 | Hydraulic clutch power assisting device of tractor |
| CN113323933B (en) * | 2021-05-21 | 2023-07-18 | 杭州诺祥科技有限公司 | Differential pressure matching type bidirectional large-flow hydraulic control device |
| CN114754088A (en) * | 2022-03-18 | 2022-07-15 | 江铃汽车股份有限公司 | Constant contact type clutch system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1167593A (en) * | 1966-02-17 | 1969-10-15 | Saab Scania Ab | Improvements in or relating to Control Systems for Motor Vehicle Clutches |
| CN202463578U (en) * | 2012-01-15 | 2012-10-03 | 福田雷沃国际重工股份有限公司 | Hydraumatic-power-assisted tractor clutch controlling mechanism |
| CN103307135A (en) * | 2013-06-28 | 2013-09-18 | 盐城平安机械有限公司 | Clutch system |
| CN203214707U (en) * | 2013-03-14 | 2013-09-25 | 瑞立集团瑞安汽车零部件有限公司 | Clutch master pump and clutch assembly provided with same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3732427A1 (en) * | 1987-09-25 | 1989-04-13 | Daimler Benz Ag | Device for the suppression of longitudinal vibrations on a vehicle with shift transmission |
| FR2889570B1 (en) * | 2005-08-04 | 2007-10-26 | Peugeot Citroen Automobiles Sa | ASSISTING DEVICE FOR THE HYDRAULIC CONTROL OF A CLUTCH, IN PARTICULAR A MOTOR VEHICLE. |
| CN101240822A (en) * | 2008-02-28 | 2008-08-13 | 曾忠莉 | Clutch assistor for car |
| CN102213280A (en) * | 2010-04-01 | 2011-10-12 | 李立军 | Double-section automobile clutch master cylinder |
| CN102345692A (en) * | 2011-09-27 | 2012-02-08 | 芜湖市安芜汽车制动元件有限公司 | Force-assisting system of automobile clutch |
-
2015
- 2015-03-06 CN CN201510110056.7A patent/CN104728309B/en active Active
- 2015-06-10 WO PCT/CN2015/081160 patent/WO2016141638A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1167593A (en) * | 1966-02-17 | 1969-10-15 | Saab Scania Ab | Improvements in or relating to Control Systems for Motor Vehicle Clutches |
| CN202463578U (en) * | 2012-01-15 | 2012-10-03 | 福田雷沃国际重工股份有限公司 | Hydraumatic-power-assisted tractor clutch controlling mechanism |
| CN203214707U (en) * | 2013-03-14 | 2013-09-25 | 瑞立集团瑞安汽车零部件有限公司 | Clutch master pump and clutch assembly provided with same |
| CN103307135A (en) * | 2013-06-28 | 2013-09-18 | 盐城平安机械有限公司 | Clutch system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104728309A (en) | 2015-06-24 |
| WO2016141638A1 (en) | 2016-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104728309B (en) | A kind of operating method of the tractor clutch manipulation device with hydraulic booster | |
| CN102102689B (en) | Hydraulic one-way valve | |
| DE102010013513A1 (en) | Vehicle brake system and master cylinder | |
| CN202463578U (en) | Hydraumatic-power-assisted tractor clutch controlling mechanism | |
| CN106224407A (en) | A kind of tractor clutch operating mechanism of band hydraulic booster | |
| CN204127161U (en) | Big-power tractor clutch hydrodynamic pressure force aid system | |
| CN106224318B (en) | Off roader hydraulic pressure four-wheel drive HYDRAULIC CONTROL SYSTEM valve group | |
| CN203322342U (en) | Pneumatic single-seat regulating valve | |
| CN207539218U (en) | Servohydraulic cylinder | |
| CN207297303U (en) | One kind has bar lifting whole process to go out liquid oil well pump | |
| CN203453167U (en) | Power reversing inching valve block for tractor | |
| CN202001415U (en) | Hydraulic control one-way valve | |
| CN204512235U (en) | A kind of tractor clutch Effector with hydraulic booster | |
| TWM517710U (en) | Pneumatic and hydraulic type seat tube assembly of bicycle | |
| CN112576485B (en) | Oil-well pump for gas-containing thick oil well | |
| CN203347772U (en) | Multi-functional throwing-in and pulling type acid replacement and discharge jet device | |
| CN204489012U (en) | A kind of system realizing electric motor car with two wheels alighting gear automatic lifting | |
| CN202971667U (en) | Clutch main cylinder | |
| CN203864677U (en) | Forklift hydraulic power brake system | |
| CN202455864U (en) | Air-assisted clutch control device for harvesters | |
| CN205577936U (en) | Electrodynamic type packer | |
| CN213017805U (en) | Overflow valve | |
| CN205533968U (en) | Shock absorber | |
| CN206436828U (en) | Direction of travel controls magnetic valve | |
| CN205559830U (en) | Telescopic flow valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |