CN105065620A - Hydraulic transmission system driven by four wheels - Google Patents
Hydraulic transmission system driven by four wheels Download PDFInfo
- Publication number
- CN105065620A CN105065620A CN201510488967.3A CN201510488967A CN105065620A CN 105065620 A CN105065620 A CN 105065620A CN 201510488967 A CN201510488967 A CN 201510488967A CN 105065620 A CN105065620 A CN 105065620A
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- gear
- clutch drum
- valve
- oil pipe
- rear axle
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 230000008878 coupling Effects 0.000 claims description 23
- 238000010168 coupling process Methods 0.000 claims description 23
- 238000005859 coupling reaction Methods 0.000 claims description 23
- 238000005461 lubrication Methods 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract 2
- 230000004323 axial length Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- 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
- F16H—GEARING
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a hydraulic transmission system driven by four wheels. The hydraulic transmission system comprises a torque converter, a fuel feed pump and a gearbox. A pump wheel on the torque converter is connected with the fuel feed pump. A turbine on the torque converter is connected with a connecting shaft on a reversing clutch drum through a spline. A first transmission gear is fixedly connected to the connecting shaft of the reversing clutch drum and is meshed with a second transmission gear and a third transmission gear. The second transmission gear and the third transmission gear are fixed to a connecting shaft of a high-speed advancing clutch drum and a connecting shaft of a low-speed advancing clutch drum respectively. A reversing gear, a high-speed advancing-gear gear and a low-speed advancing-gear gear are arranged on an internal friction piece of the reversing clutch drum, an internal friction piece of the high-speed advancing clutch drum and an internal friction piece of the low-speed advancing clutch drum respectively. According to the hydraulic transmission system driven by the four wheels, combining and disengaging of a bridge disengaging device are achieved through a hydraulic clutch, electronic control is convenient, and therefore conversion between four-wheel driving and two-wheel driving can be achieved without shutdowns, and operation is more convenient and more rapid.
Description
Technical field:
The present invention relates to the technical field of forklift gear-box, more specifically to a kind of four-wheel drive hydraulic transmission system.
Background technique:
At present, in four-wheel drive fork truck hydraulic transmission system in fork truck manufacture field, its four-wheel drive is converted to two-wheel drive and is generally realized by the de-bridge of machinery, the combination that the de-Biodge device of machinery realizes transfer case be separated, the gear clutch of its gearbox generally adopts on an axle and arranges two its structures of clutch simultaneously, but its Shortcomings part, mainly the combination of the de-Biodge device of machinery needs to stop could realize with being separated, operate comparatively loaded down with trivial details difficulty, and its vibrational power flow of two clutch is on an axle, then require that its axle is longer, then impel the axial length of gearbox larger, take up room large, then the layout of car load is comparatively difficult.
Summary of the invention:
Object of the present invention is exactly the deficiency for prior art, and a kind of four-wheel drive hydraulic transmission system is provided, its de-Biodge device by the combination of hydraulic coupling be separated, and facilitate electronic control, thus without the need to the conversion that just can realize between four-wheel drive and two-wheel drive of stopping, operate more convenient.
Technology solution of the present invention is as follows:
A kind of four-wheel drive hydraulic transmission system, comprise torque-converters, oil feed pump and gear-box, pump impeller on torque-converters and oil feed pump link together, turbine on torque-converters is connected together by the connecting shaft on spline and reverse clutch drum, the connecting shaft of reverse clutch drum is fixedly connected with the first driving gear, first driving gear is meshed with the second driving gear and the 3rd driving gear respectively, second driving gear and the 3rd driving gear are separately fixed at and advance at utmost speed on the connecting shaft of clutch drum and low-speed forward clutch drum, reverse clutch drum, advance at utmost speed clutch drum and low-speed forward clutch drum inner attrition piece on be respectively arranged with reverse-gear, advance at utmost speed grade gear and low-speed forward gear gear,
Together with reverse-gear is all meshed with propons output gear with low-speed forward gear gear, propons output gear is fixedly connected on propons output shaft, one end of propons output shaft is fixedly connected with propons coupling, propons output shaft is fixedly connected with the 4th driving gear, 4th driving gear is meshed with idle pulley, idle pulley to be fixed on idler shaft and to be meshed with rear axle drive gear, rear axle drive gear is arranged on the inner attrition piece of rear axle drive clutch drum, rear axle drive gear is fixedly connected with the 5th driving gear, 5th driving gear and grade gear that advances at utmost speed are meshed, one end of the connecting shaft of rear axle drive clutch drum is connected with back axle coupling.
Described reverse clutch drum, the clutch drum that advances at utmost speed, low-speed forward clutch drum and rear axle drive clutch drum all adopt hydraulic coupling, hydraulic coupling is made up of clutch housing, connecting shaft, piston, outside friction disc and inner attrition piece, the connecting shaft two ends of reverse clutch drum, the clutch drum that advances at utmost speed, low-speed forward clutch drum and rear axle drive clutch drum are by bearing hinge connection on gear-box, and the gear-box that stretches out of rear axle drive clutch drum connecting shaft is fixedly connected with back axle coupling.
Hydraulic control system comprises gear-box, strainer is connected with by oil pipe in gear-box, the output terminal of strainer is fixedly connected with oil feed pump, oil feed pump is connected with pressure fixing valve by oil pipe, the output terminal of pressure fixing valve is connected with filter cleaner, filter cleaner is connected on torque-converters by pipeline, torque-converters is by pipeline and reverse clutch drum, advance at utmost speed clutch drum, low-speed forward clutch drum is connected with the lubrication passage on rear axle drive clutch drum, the end of lubrication passage is connected with gear-box, pipeline between lubrication passage and torque-converters is provided with cooling water tank,
Oil pipe between pressure fixing valve and oil feed pump is connected with first point of branch oil pipe, first point of branch oil pipe is connected with first segment discharge orifice, the end of first segment discharge orifice is connected with accumulator, first point of branch oil pipe between accumulator and first segment discharge orifice is connected with inching valve by oil pipe, the output terminal of inching valve is connected with the first filter screen solenoid valve, the output terminal of the first filter screen solenoid valve is connected with an input end of solenoid directional control valve by oil pipe, two output terminals of solenoid directional control valve are connected with an input end of selector valve with reverse clutch drum respectively by oil pipe, two output terminals of selector valve are connected with low-speed forward clutch drum with the clutch drum that advances at utmost speed respectively by oil pipe,
First point of branch oil pipe between first segment discharge orifice and oil feed pump is fixedly connected with second point of branch oil pipe, second point of branch oil pipe is connected with second section discharge orifice and the second filter screen solenoid valve, the end of second point of branch oil pipe is connected with the input end of electrically-controlled valve, and two output terminals of electrically-controlled valve are connected to rear axle drive clutch drum and gear-box by oil pipe.
Oil circuit between described filter cleaner and torque-converters connects the first relief valve, pipeline between torque-converters and cooling water tank is connected with the second relief valve, first relief valve is connected with gear-box with the output terminal of the second relief valve, and an output terminal of described inching valve, another input end of solenoid directional control valve are all connected with gear-box with another input end of selector valve.
Beneficial effect of the present invention is:
1, its de-Biodge device of adopting by the combination of hydraulic coupling be separated, and facilitate electronic control, thus without the need to the conversion that just can realize between four-wheel drive and two-wheel drive of stopping, operate more convenient.
2, it adopts flexible coupling to realize the connection of gearbox and ransaxle, gearbox and transfer case, make to have started the vibration produced to be absorbed by coupling, reduce the impact of vibration on speed change, improve the comfort level of driving, improve the working life of gearbox.
3, the gear clutch of its gearbox used adopts on an axle and only arranges a clutch, thus shortens axial length, and indirectly the axial length of gearbox shortens, and car load is easy for installation.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of driving system of forklift truck of the present invention;
Fig. 2 is the principle schematic of truck hydraulic control system of the present invention.
In figure: 1, torque-converters; 1a, pump impeller; 1b, turbine; 2, oil feed pump; 3, spline; 4, reverse-gear; 5, advance at utmost speed a grade gear; 6, inching valve; 7, solenoid directional control valve; 8, selector valve; 9, the second driving gear; 10, advance at utmost speed clutch drum; 11, reverse clutch drum; 12, the first driving gear; 13, the 3rd driving gear; 14, low-speed forward clutch drum; 15, propons coupling; 16, rear axle drive gear; 17, the 5th driving gear; 18, rear axle drive clutch drum; 19, back axle coupling; 20, idler shaft; 21, idle pulley; 22, propons output shaft; 23, the 4th driving gear; 24, propons output gear; 25, low-speed forward gear gear; 26, gear-box; 27, strainer; 28, pressure fixing valve; 29, filter cleaner; 30, the first relief valve; 31, cooling water tank; 32, lubrication passage; 33, the second relief valve; 34, first point of branch oil pipe; 35, first segment discharge orifice; 36, second point of branch oil pipe bar; 37, second section discharge orifice; 38, the second filter screen solenoid valve; 39, electrically-controlled valve; 40, accumulator; 41, he, a filter screen solenoid valve; A, clutch housing; B, connecting shaft; C, piston; D, outside friction disc; E, inner attrition piece.
Embodiment:
Embodiment: see Fig. 1, shown in 2, a kind of four-wheel drive hydraulic transmission system, comprise torque-converters 1, oil feed pump 2 and gear-box 26, pump impeller 1a on torque-converters 1 and oil feed pump 2 link together, the turbine 1b of torque-converters 1 is connected together by spline 3 and the connecting shaft b on reverse clutch drum 11, the connecting shaft b of reverse clutch drum 11 is fixedly connected with the first driving gear 12, first driving gear 12 is meshed with the second driving gear 9 and the 3rd driving gear 13 respectively, second driving gear 9 and the 3rd driving gear 13 are separately fixed at and advance at utmost speed on the connecting shaft b of clutch drum 10 and low-speed forward clutch drum 14, reverse clutch drum 11, advance at utmost speed clutch drum 10 and low-speed forward clutch drum 14 inner attrition piece e on be respectively arranged with reverse-gear 4, advance at utmost speed grade gear 5 and low-speed forward gear gear 25,
Together with reverse-gear 4 is all meshed with propons output gear 24 with low-speed forward gear gear 25, propons output gear 24 is fixedly connected on propons output shaft 22, one end of propons output shaft 22 is fixedly connected with propons coupling 15, propons output shaft 22 is fixedly connected with the 4th driving gear 23, 4th driving gear 23 is meshed with idle pulley 21, idle pulley 21 to be fixed on idler shaft 20 and to be meshed with rear axle drive gear 16, rear axle drive gear 16 is arranged on the inner attrition piece e of rear axle drive clutch drum 18, rear axle drive gear 16 is fixedly connected with the 5th driving gear 17, 5th driving gear 17 and grade gear 5 that advances at utmost speed are meshed, one end of the connecting shaft b of rear axle drive clutch drum 18 is connected with back axle coupling 19.
Described reverse clutch drum 11, the clutch drum 10 that advances at utmost speed, low-speed forward clutch drum 14 and rear axle drive clutch drum 18 all adopt hydraulic coupling, hydraulic coupling is made up of clutch housing a, connecting shaft b, piston c, outside friction disc d and inner attrition piece e, the connecting shaft b two ends of reverse clutch drum 11, the clutch drum 10 that advances at utmost speed, low-speed forward clutch drum 14 and rear axle drive clutch drum 18 are by bearing hinge connection on gear-box 26, and the gear-box 26 that stretches out of rear axle drive clutch drum 18 connecting shaft b is fixedly connected with back axle coupling 19.
Hydraulic control system comprises gear-box 26, strainer 27 is connected with by oil pipe in gear-box 26, the output terminal of strainer 27 is fixedly connected with oil feed pump 2, oil feed pump 2 is connected with pressure fixing valve 28 by oil pipe, the output terminal of pressure fixing valve 28 is connected with filter cleaner 29, filter cleaner 29 is connected on torque-converters 1 by pipeline, torque-converters 1 is by pipeline and reverse clutch drum 11, advance at utmost speed clutch drum 10, low-speed forward clutch drum 14 is connected with the lubrication passage 32 on rear axle drive clutch drum 18, the end of lubrication passage 32 is connected with gear-box 26, pipeline between lubrication passage 32 and torque-converters 1 is provided with cooling water tank 31,
Oil pipe between pressure fixing valve 28 and oil feed pump 2 is connected with first point of branch oil pipe 34, first point of branch oil pipe 34 is connected with first segment discharge orifice 35, the end of first segment discharge orifice 35 is connected with accumulator 40, first point of branch oil pipe 34 between accumulator 40 and first segment discharge orifice 35 is connected with inching valve 6 by oil pipe, the output terminal of inching valve 6 is connected with the first filter screen solenoid valve 41, the output terminal of the first filter screen solenoid valve 41 is connected with an input end of solenoid directional control valve 7 by oil pipe, two output terminals of solenoid directional control valve 7 are connected with an input end of selector valve 8 with reverse clutch drum 11 respectively by oil pipe, two output terminals of selector valve 8 are connected with low-speed forward clutch drum 14 with the clutch drum 10 that advances at utmost speed respectively by oil pipe,
First point of branch oil pipe 34 between first segment discharge orifice 35 and oil feed pump 2 is fixedly connected with second point of branch oil pipe 36, second point of branch oil pipe 36 is connected with second section discharge orifice 37 and the second filter screen solenoid valve 38, the end of second point of branch oil pipe 36 is connected with the input end of electrically-controlled valve 39, and two output terminals of electrically-controlled valve 39 are connected to rear axle drive clutch drum 18 and gear-box 26 by oil pipe.
Oil circuit between described filter cleaner 29 and torque-converters 1 connects the first relief valve 30, pipeline between torque-converters 1 and cooling water tank 31 is connected with the second relief valve 33, first relief valve 30 is connected with gear-box 26 with the output terminal of the second relief valve 33, and an output terminal of described inching valve 6, another input end of solenoid directional control valve 7 are all connected with gear-box 26 with another input end of selector valve 8.
Working principle: the present invention is a kind of hydraulic transmission system of fork truck and controls the hydraulic control system of its transmission system, hydraulic control system is mainly divided into two-way, and a road is to driving gear and the cooling and lubricating to car clutch drum 11, the clutch drum 10 that advances at utmost speed, low-speed forward clutch drum 14 and rear axle drive clutch drum 18 4 clutches thereof; Another road be control reverse clutch drum 11, the clutch drum 10 that advances at utmost speed, low-speed forward clutch drum 14 and rear axle drive clutch drum 18 4 clutches combination be separated;
Composition graphs 1, the concrete kind of drive of its gearbox is as follows:
1, gear is when low-forward range, in low-speed forward clutch drum 14, set piston c is moved to the left, outside friction disc d is combined with inner attrition piece e, now low-speed forward gear 25 is connected with low-speed forward clutch drum 14, then power is delivered to propons shaft joint 15 from torque-converters 1, spline 3, reverse clutch drum 11, first driving gear 12, the 3rd driving gear 13, low-speed forward clutch drum 14, low-speed forward gear 25, propons output gear 24, propons output shaft 22 successively;
2, gear is when to advance at utmost speed grade, the interior set piston c of the clutch drum 10 that advances at utmost speed is moved to the left, outside friction disc d is combined with inner attrition piece e, the gear 5 that now advances at utmost speed is connected with the clutch drum 10 that advances at utmost speed, and power is delivered to propons shaft joint 15 from torque-converters 1, spline 3, reverse clutch drum 11, first driving gear 12, second driving gear 9, the clutch drum 10 that advances at utmost speed, the gear 5 that advances at utmost speed, the 5th driving gear 17, rear axle gear 16, idle pulley 21, the 4th driving gear 23, propons output shaft 22 successively;
3, gear is when reverse gear, in reverse clutch drum 11, set piston c is moved to the left, outside friction disc d is combined with inner attrition piece e, now reverse-gear 4 is connected with reverse clutch drum 11, and power is delivered to propons shaft joint 15 from torque-converters 1, spline 3, reverse clutch drum 11, reverse-gear 4, propons output gear 24, propons output shaft 22 successively;
During 4, four-wheel drive pattern, in rear axle drive clutch drum 18, set piston e is moved to the left, outside friction disc d is combined with inner attrition piece e, now, axle gear 16 is connected with rear axle drive clutch drum 18, after power passes to propons output gear 24 from torque-converters 1, then be delivered on back axle shaft joint 19 by the 4th driving gear 23, idle pulley 21, rear axle gear 16, rear axle drive clutch drum 18 successively;
5, during two-wheeled wheel drive mode, in rear axle drive clutch drum 18, set piston e does not move, and outside friction disc d and inner attrition piece e is in disengaged position, the now unpowered output of back axle shaft joint 19.
The conversion of two-wheeled wheel driving and four-wheel drive, the de-Biodge device of machinery generally adopts the connection of spline form, thus after needing parking, adopt disengaging and the combination that can realize splined shaft and spline housing, and this adopts hydraulic coupling to control, then without the need to considering this problem, the simultaneously hydraulic coupling combination that controls hydraulic pressure can be driven to realize clutch by electronic control be separated, the changable bridge comparing the de-Biodge device of machinery is more convenient; Its reverse clutch drum 11, the clutch drum 10 that advances at utmost speed, low-speed forward clutch drum 14 and rear axle drive clutch drum 18 4 clutches arrange on a connecting shaft b all separately simultaneously, thus shorten axial length, indirectly the axial length of gearbox shortens, and car load is easy for installation.
Claims (4)
1. a four-wheel drive hydraulic transmission system, comprise torque-converters (1), oil feed pump (2) and gear-box (26), pump impeller (1a) on torque-converters (1) and oil feed pump (2) link together, it is characterized in that: the turbine (1b) on torque-converters (1) is connected together by spline (3) and the connecting shaft (b) on reverse clutch drum (11), the connecting shaft (b) of reverse clutch drum (11) is fixedly connected with the first driving gear (12), first driving gear (12) is meshed with the second driving gear (9) and the 3rd driving gear (13) respectively, second driving gear (9) and the 3rd driving gear (13) are separately fixed on the connecting shaft (b) of the clutch drum that advances at utmost speed (10) and low-speed forward clutch drum (14), reverse clutch drum (11), advance at utmost speed clutch drum (10) and low-speed forward clutch drum (14) inner attrition piece (e) on be respectively arranged with reverse-gear (4), advance at utmost speed a grade gear (5) and low-speed forward gear gear (25),
Together with reverse-gear (4) and low-speed forward gear gear (25) are all meshed with propons output gear (24), propons output gear (24) is fixedly connected on propons output shaft (22), one end of propons output shaft (22) is fixedly connected with propons coupling (15), propons output shaft (22) is fixedly connected with the 4th driving gear (23), 4th driving gear (23) is meshed with idle pulley (21), idle pulley (21) is fixed on idler shaft (20) and goes up and be meshed with rear axle drive gear (16), rear axle drive gear (16) is arranged on the inner attrition piece (e) of rear axle drive clutch drum (18), rear axle drive gear (16) is fixedly connected with the 5th driving gear (17), 5th driving gear (17) and grade gear (5) that advances at utmost speed are meshed, one end of the connecting shaft (b) of rear axle drive clutch drum (18) is connected with back axle coupling (19).
2. a kind of four-wheel drive hydraulic transmission system according to claim 1, it is characterized in that: described reverse clutch drum (11), advance at utmost speed clutch drum (10), low-speed forward clutch drum (14) and rear axle drive clutch drum (18) all adopt hydraulic coupling, hydraulic coupling is by clutch housing (a), connecting shaft (b), piston (c), outside friction disc (d) and inner attrition piece (e) composition, reverse clutch drum (11), advance at utmost speed clutch drum (10), connecting shaft (b) two ends of low-speed forward clutch drum (14) and rear axle drive clutch drum (18) by bearing hinge connection on gear-box (26), the gear-box (26) that stretches out of rear axle drive clutch drum (18) connecting shaft (b) is fixedly connected with back axle coupling (19).
3. a kind of four-wheel drive hydraulic transmission system according to claim 1, its hydraulic transmission system also comprises corresponding hydraulic control system, it is characterized in that: hydraulic control system comprises gear-box (26), strainer (27) is connected with by oil pipe in gear-box (26), the output terminal of strainer (27) is fixedly connected with oil feed pump (2), oil feed pump (2) is connected with pressure fixing valve (28) by oil pipe, the output terminal of pressure fixing valve (28) is connected with filter cleaner (29), filter cleaner (29) is connected on torque-converters (1) by pipeline, torque-converters (1) is by pipeline and reverse clutch drum (11), advance at utmost speed clutch drum (10), low-speed forward clutch drum (14) is connected with the lubrication passage (32) on rear axle drive clutch drum (18), the end of lubrication passage (32) is connected with gear-box (26), pipeline between lubrication passage (32) and torque-converters (1) is provided with cooling water tank (31),
Oil pipe between pressure fixing valve (28) and oil feed pump (2) is connected with first point of branch oil pipe (34), first point of branch oil pipe (34) is connected with first segment discharge orifice (35), the end of first segment discharge orifice (35) is connected with accumulator (40), first point of branch oil pipe (34) between accumulator (40) and first segment discharge orifice (35) is connected with inching valve (6) by oil pipe, the output terminal of inching valve (6) is connected with the first filter screen solenoid valve (41), the output terminal of the first filter screen solenoid valve (41) is connected by the input end of oil pipe with solenoid directional control valve (7), two output terminals of solenoid directional control valve (7) are connected with an input end of selector valve (8) with reverse clutch drum (11) respectively by oil pipe, two output terminals of selector valve (8) are connected with low-speed forward clutch drum (14) with the clutch drum that advances at utmost speed (10) respectively by oil pipe,
First point of branch oil pipe (34) between first segment discharge orifice (35) and oil feed pump (2) is fixedly connected with second point of branch oil pipe (36), second point of branch oil pipe (36) is connected with second section discharge orifice (37) and the second filter screen solenoid valve (38), the end of second point of branch oil pipe (36) is connected with the input end of electrically-controlled valve (39), and two output terminals of electrically-controlled valve (39) are connected to rear axle drive clutch drum (18) and gear-box (26) by oil pipe.
4. a kind of four-wheel drive hydraulic transmission system according to claim 3, it is characterized in that: the oil circuit between described filter cleaner (29) and torque-converters (1) connects the first relief valve (30), pipeline between torque-converters (1) and cooling water tank (31) is connected with the second relief valve (33), first relief valve (30) is connected with gear-box (26) with the output terminal of the second relief valve (33), one output terminal of described inching valve (6), another input end of solenoid directional control valve (7) is all connected with gear-box (26) with another input end of selector valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488967.3A CN105065620B (en) | 2015-08-11 | 2015-08-11 | Hydraulic transmission system driven by four wheels |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488967.3A CN105065620B (en) | 2015-08-11 | 2015-08-11 | Hydraulic transmission system driven by four wheels |
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| Publication Number | Publication Date |
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| CN105065620A true CN105065620A (en) | 2015-11-18 |
| CN105065620B CN105065620B (en) | 2017-05-10 |
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| CN201510488967.3A Active CN105065620B (en) | 2015-08-11 | 2015-08-11 | Hydraulic transmission system driven by four wheels |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736671A (en) * | 2016-04-13 | 2016-07-06 | 浙江中柴机器有限公司 | Flexible hydrodynamic transmission |
| CN105782388A (en) * | 2016-05-05 | 2016-07-20 | 浙江中柴机器有限公司 | Four-wheel drive off-road hydrodynamic transmission speed changer |
| CN108317232A (en) * | 2018-04-09 | 2018-07-24 | 浙江中柴机器有限公司 | A kind of multifunctional unit speed changer |
| CN108928773A (en) * | 2018-07-03 | 2018-12-04 | 杭叉集团股份有限公司 | A kind of All-terrain Forklift transmission device and All-terrain Forklift |
| CN108317232B (en) * | 2018-04-09 | 2024-06-25 | 浙江中柴机器有限公司 | Multifunctional integrated transmission |
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| CN105782388A (en) * | 2016-05-05 | 2016-07-20 | 浙江中柴机器有限公司 | Four-wheel drive off-road hydrodynamic transmission speed changer |
| CN105782388B (en) * | 2016-05-05 | 2017-12-26 | 浙江中柴机器有限公司 | A kind of cross-country hydrodynamic drive speed changer of 4 wheel driven |
| CN108317232A (en) * | 2018-04-09 | 2018-07-24 | 浙江中柴机器有限公司 | A kind of multifunctional unit speed changer |
| CN108317232B (en) * | 2018-04-09 | 2024-06-25 | 浙江中柴机器有限公司 | Multifunctional integrated transmission |
| CN108928773A (en) * | 2018-07-03 | 2018-12-04 | 杭叉集团股份有限公司 | A kind of All-terrain Forklift transmission device and All-terrain Forklift |
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| CN105065620B (en) | 2017-05-10 |
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Denomination of invention: Hydraulic transmission system driven by four wheels Effective date of registration: 20171213 Granted publication date: 20170510 Pledgee: Agricultural Bank of China Limited by Share Ltd. Xinchang county subbranch Pledgor: ZHEJIANG ZHONGCHAI MACHINERY Co.,Ltd. Registration number: 2017330000276 |
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Denomination of invention: A four wheel drive hydraulic transmission system Effective date of registration: 20210609 Granted publication date: 20170510 Pledgee: Xinchang Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: ZHEJIANG ZHONGCHAI MACHINERY Co.,Ltd. Registration number: Y2021330000535 |
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Date of cancellation: 20230328 Granted publication date: 20170510 Pledgee: Xinchang Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: ZHEJIANG ZHONGCHAI MACHINERY Co.,Ltd. Registration number: Y2021330000535 |
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