CN113294505B - Four-wheel-drive cross-country forklift gearbox with multiple backward gears - Google Patents
Four-wheel-drive cross-country forklift gearbox with multiple backward gears Download PDFInfo
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- CN113294505B CN113294505B CN202110635105.4A CN202110635105A CN113294505B CN 113294505 B CN113294505 B CN 113294505B CN 202110635105 A CN202110635105 A CN 202110635105A CN 113294505 B CN113294505 B CN 113294505B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 108
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009194 climbing Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- B66F9/07572—Propulsion arrangements
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/085—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with more than one output shaft
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0017—Transmissions for multiple ratios specially adapted for four-wheel-driven vehicles
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0039—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising three forward speeds
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
- F16H2200/0091—Transmissions for multiple ratios characterised by the number of reverse speeds the gear ratios comprising three reverse speeds
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2038—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with three engaging means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a four-wheel-drive cross-country forklift gearbox with multiple backward gears, which comprises a gearbox body, wherein a torque converter is fixed on the upper wall surface of the right side of the gearbox body, and a turbine shaft of the torque converter is connected with a first clutch shaft on the gearbox body; a third-gear clutch shaft, a first clutch shaft, a second clutch shaft, a transmission shaft, a front output shaft, a bridge disengaging shaft and a rear output shaft are hinged on the gearbox body; an idler shaft is hinged on the gearbox body through a bearing, and an idler gear is fixed on the idler shaft; the first clutch shaft is provided with a third-gear input gear and a reverse gear, the second clutch shaft is provided with a transmission gear, a first-gear and a second-gear, and the bridge disengaging shaft is provided with a bridge disengaging transmission gear and a bridge disengaging gear; the device adopts a forward 3-gear and backward 3-gear arrangement, increases backward power under the condition that forward power is not changed, ensures that backward power is sufficient, improves the power requirements of backward climbing and backward driving, and has good effect.
Description
The technical field is as follows:
the invention relates to the technical field of transmissions, in particular to a four-wheel-drive cross-country forklift gearbox with multiple backward gears.
Background art:
the hydraulic transmission gearbox in the field of forklift manufacturing has the advantages that power output is mostly single-side two-wheel drive output, the gearbox can only meet the requirement of an ordinary two-wheel drive forklift, the four-wheel drive off-road forklift gearbox is needed, the mode of changing a tractor and a loader gearbox is generally adopted, the functions and the performances are not matched with the requirements of the forklift, however, the existing four-wheel drive off-road forklift gearbox generally only has the setting of backing one gear, and the backing climbing and driving power effects are limited.
For another example, the chinese patent publication No. CN202021148848.6 discloses a four-wheel drive forklift transmission, which is also an improvement due to insufficient reverse power, but the improvement only realizes forward 2 gears, increases a first gear for reverse, and increases a certain increase for reverse 2 gears, so that the forward power range is reduced, and the reverse is increased, and the effect is not ideal.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provides a four-wheel-drive cross-country forklift gearbox with multiple backward gears, which adopts a forward 3-gear and backward 3-gear arrangement, increases backward power under the condition that the forward power is not changed, ensures that the backward power is sufficient, improves the power requirements of backward climbing and backward driving, and has good effect.
The scheme for solving the technical problems is as follows:
a four-wheel-drive cross-country forklift gearbox with multiple backward gears comprises a gearbox body, wherein a torque converter is fixed on the upper wall surface of the right side of the gearbox body, and a turbine shaft of the torque converter is connected with a first clutch shaft on the gearbox body; a third-gear clutch shaft, a first clutch shaft, a second clutch shaft, a transmission shaft, a front output shaft, a bridge disengaging shaft and a rear output shaft are hinged on the gearbox body; an idler shaft is hinged on the gearbox body through a bearing, and an idler gear is fixed on the idler shaft;
the first clutch shaft is provided with a third-gear input gear and a reverse gear, the second clutch shaft is provided with a transmission gear, a first-gear and a second-gear, and the bridge disengaging shaft is provided with a bridge disengaging transmission gear and a bridge disengaging gear;
the transmission shaft is provided with a second-gear transmission gear, a first-gear transmission gear and a transmission shaft output gear;
a first output gear and a second output gear are mounted on the front output shaft;
a rear output gear is mounted on the rear output shaft;
a third gear and a third gear transmission gear are arranged on the third gear clutch shaft;
the reverse gear is meshed with the transmission gear, the third gear input gear is meshed with the third gear, the first gear is meshed with the first gear, the second gear is meshed with the second gear, the transmission shaft output gear is meshed with the first output gear, the second output gear is meshed with the bridge disengaging gear, the rear output gear is meshed with the bridge disengaging transmission gear, the third gear is meshed with the idle gear, and the idle gear is meshed with the first output gear.
The first clutch shaft is provided with a forward gear, the gearbox body is hinged to a second idler shaft through a bearing, the second idler shaft is fixed with a second idler gear, and the second idler gear is meshed with the forward gear.
And a second-gear input gear is mounted on the second clutch shaft and meshed with the second idle gear.
The third-gear clutch shaft, the first clutch shaft, the second clutch shaft, the transmission shaft, the front output shaft, the rear output shaft and the axle disengaging shaft are hinged to the gearbox body through bearings.
An idler shaft and a second idler shaft are fixed on the gearbox body.
The third-gear transmission gear is fixed on the third-gear clutch shaft; the third-gear input gear and the reverse gear are formed on the same connecting shaft sleeve part, and the connecting shaft sleeve part is hinged to the first clutch shaft through a bearing.
The transmission gear and the first and second gear input gears are fixed on the second clutch shaft; the first-gear transmission gear, the second-gear transmission gear and the transmission shaft output gear are fixed on the transmission shaft; the first output gear and the second output gear are fixed on the front output shaft; a rear output gear is fixed on the rear output shaft; the bridge-off shaft is fixed with a bridge-off transmission gear and is hinged with a bridge-off gear through a bearing.
The invention has the following outstanding effects:
compared with the prior art, the device adopts the forward 3-gear and backward 3-gear arrangement, so that the backward power is increased under the condition that the forward power is not changed, the backward power is sufficient, the power requirements of backward climbing and backward driving are improved, and the effect is good.
Description of the drawings:
FIG. 1 is a simplified schematic of the present invention;
fig. 2 is a partial structural schematic view of a clutch portion at a second clutch shaft of the present invention.
The specific implementation mode is as follows:
the embodiment, as shown in fig. 1 to 2, a four-wheel drive forklift gearbox with multiple backward gears comprises a gearbox body 100, wherein a torque converter 20 is fixed on the upper wall surface of the right side of the gearbox body 100, and a turbine shaft 201 of the torque converter 20 is connected with a first clutch shaft 30 on the gearbox body 100; the gearbox body 100 is hinged with a three-gear clutch shaft 70, a first clutch shaft 30, a second clutch shaft 40, a transmission shaft 18, a front output shaft 23, a bridge disengaging shaft 60 and a rear output shaft 50; an idler shaft 4 is hinged on the gearbox body 100 through a bearing, and an idler gear 3 is fixed on the idler shaft 4;
the first clutch shaft 30 is provided with a third-gear input gear 9 and a reverse gear 11, the second clutch shaft 40 is provided with a transmission gear 15, a first-gear 14 and a second-gear 12, and the bridge disengaging shaft 60 is provided with a bridge disengaging transmission gear 26 and a bridge disengaging gear 25;
the transmission shaft 18 is provided with a second-gear transmission gear 17, a first-gear transmission gear 19 and a transmission shaft output gear 20;
the front output shaft 23 is provided with a first output gear 21 and a second output gear 211;
a rear output gear 27 is mounted on the rear output shaft 50;
the third-gear clutch shaft 70 is provided with a third-gear 6 and a third-gear transmission gear 5;
the reverse gear 11 is meshed with the transmission gear 15, the third gear input gear 9 is meshed with the third gear 6, the first gear 14 is meshed with the first gear transmission gear 19, the second gear transmission gear 17 is meshed with the second gear 12, the transmission shaft output gear 20 is meshed with the first output gear 21, the second output gear 211 is meshed with the bridge release gear 25, the rear output gear 27 is meshed with the bridge release transmission gear 26, the third gear transmission gear 5 is meshed with the idle gear 3, and the idle gear 3 is meshed with the first output gear 21.
Further, the first clutch shaft 30 is provided with a forward gear 10, the transmission case 100 is hinged to a second idle gear shaft 81 through a bearing, a second idle gear 80 is fixed to the second idle gear shaft 81, and the second idle gear 80 is engaged with the forward gear 10.
Further, a second gear input gear 13 is mounted on the second clutch shaft 40, and the second gear input gear 13 is engaged with the second idle gear 80.
Further, the third clutch shaft 70, the first clutch shaft 30, the second clutch shaft 40, the transmission shaft 18, the front output shaft 23, the rear output shaft 50 and the axle release shaft 60 are all hinged to the transmission case 100 through bearings.
Further, an idler shaft 4 and a second idler gear 80 are fixed to the transmission case 100.
Further, the third gear transmission gear 5 is fixed on the third gear clutch shaft 70; the third gear input gear 9 and the reverse gear 11 are formed on the same connecting shaft sleeve part 90, and the connecting shaft sleeve part 90 is hinged on the first clutch shaft 30 through a bearing.
Further, the transmission gear 15 and the second-gear input gear 13 are fixed to the second clutch shaft 40; the second-gear transmission gear 17 and the transmission shaft output gear 20 are fixed on the transmission shaft 18; the first output gear 21 and the second output gear 211 are fixed on the front output shaft 23; a rear output gear 27 is fixed on the rear output shaft 50; the bridge-off shaft 60 is fixed with a bridge-off transmission gear 26 and hinged with a bridge-off gear 25 through a bearing.
Further, a left end spline shaft portion of the turbine shaft 201 of the torque converter 20 extends out of the transmission case 100 and into a spline hole formed in a right end of the first clutch shaft 30.
Further, a double clutch outer hub 202 is formed at the middle of each of the first clutch shaft 30 and the second clutch shaft 40, a clutch inner hub 203 is formed at each of the third gear input gear 9, the forward gear 10, the first gear 14 and the second gear 12, the corresponding two clutch inner hubs 203 are located at both sides of the corresponding double clutch outer hub 202, the clutch inner hubs 203 are inserted into the first clutch shaft 30 or the second clutch shaft 40, the corresponding driving friction plates 204 and the corresponding driven friction plates 205 are located between the clutch inner hubs 203 and the clutch outer hubs 202, the corresponding driving friction plates 204 are engaged with external teeth provided on the clutch inner hubs 203, the corresponding driven friction plates 205 are connected to the clutch outer hubs 202, a first pressing block 206 and a second pressing block 207 are inserted into each of the first clutch shaft 30 and the second clutch shaft 40, the first pressing block 206 and the second pressing block 207 are located at both sides of the double clutch outer hubs 202, the first presser piece 206 and the second presser piece 207 face the corresponding driving friction plate 204 and driven friction plate 205. The forward gear 10, the first gear 14 and the second gear 12 are each hinged on the corresponding first clutch shaft 30 or second clutch shaft 40 through a bearing.
Further, a single clutch outer hub 209 is formed on each of the off-bridge shaft 60 and the third-gear clutch shaft 70, a single clutch inner hub 210 is formed on each of the off-bridge gear 25 and the third-gear 6, the off-bridge gear 25 and the third-gear 6 are hinged on the corresponding off-bridge shaft 60 or the corresponding third-gear clutch shaft 70 through bearings, the single clutch inner hub 210 is located at the single clutch outer hub 209 of the off-bridge shaft 60, the single clutch outer hub 209 is inserted and sleeved on the off-bridge shaft 60, the corresponding driving friction plate 204 and the corresponding driven friction plate 205 are located between the single clutch inner hub 210 and the single clutch outer hub 209, the corresponding driving friction plate 204 is engaged with external teeth on the single clutch inner hub 203, the corresponding driven friction plate 205 is connected with the single clutch outer hub 206, third pressing blocks 2110 are inserted and sleeved on each of the off-bridge shaft 60 and the third-gear clutch shaft 70, the third pressing blocks 2110 are opposite to the corresponding driving friction plates 204 and driven friction plates 205, the third pressure piece 2110 is close to the connecting inner wall of the single clutch outer hub 209.
In the present embodiment, the structural components of the first clutch shaft 30, the second clutch shaft 40, such as the clutch inner hub 203, the double clutch outer hub 202, the driving friction plate 204, the driven friction plate 205, and the like, are the same as those of the conventional wet clutch, and detailed description thereof is omitted; similarly, the single clutch inner hub 210, the single clutch outer hub 209, the driving friction plate 204, the driven friction plate 205 and other structural components on the axle disengaging shaft 60 and the third-gear clutch shaft 70 are the same as those of the existing wet clutch, and are not described in detail;
the torque converter 20 is also a known, known torque converter structure and will not be described in detail.
One end of the front output shaft 23 extends out of the gearbox body 100 and is fixed with a front output connecting flange 22; one end of the rear output shaft 50 extends out of the transmission housing 100 and is fixed with a rear output attachment flange 28.
The working principle is as follows: the first clutch shaft 30 is driven to rotate by the turbine shaft 201 of the torque converter shell 20, the inner end of the turbine shaft 201 is a spline shaft, and the spline shaft is inserted and sleeved in a spline hole formed in one end of the first clutch shaft 30, so that the first clutch shaft 30 rotates;
advancing the first gear: the first clutch shaft 30 rotates, the first pressing block 206 of the first clutch shaft 30 presses tightly to press the corresponding driving friction plate 204 and the corresponding driven friction plate 205, so that the forward gear 10 rotates, the forward gear 10 drives the second idle gear 80 to rotate, the second idle gear 80 drives the first-gear input gear 13 to rotate, at the moment, the second pressing block 207 of the second clutch shaft 40 presses tightly to press the corresponding driving friction plate 204 and the corresponding driven friction plate 205, so that the first-gear 14 rotates, the first-gear 14 drives the first-gear transmission gear 19 to rotate, the first-gear transmission gear 19 drives the transmission shaft 18 to rotate, the transmission shaft 18 rotates to rotate, so that the transmission shaft output gear 20 rotates, the transmission shaft output gear 20 drives the first output gear 21 to rotate, so that the front output shaft 23 rotates, and the front output connecting flange 22 outputs;
at this time, the front-mounted two-wheel drive is adopted, when the third pressing block 2110 on the axle shaft 60 presses the corresponding driving friction plate 204 and the corresponding driven friction plate 205, the axle shaft 60 rotates to drive the axle-disengaging transmission gear 26 to rotate, the axle-disengaging transmission gear 26 drives the rear output gear 27 to rotate, the rear output gear 27 drives the rear output shaft 50 to rotate, the rear output connecting flange 28 rotates, and the four-wheel drive is realized.
And (3) forward second gear: the first clutch shaft 30 rotates, the first pressing block 206 of the first clutch shaft 30 presses tightly to press the corresponding driving friction plate 204 and the corresponding driven friction plate 205, so that the forward gear 10 rotates, the forward gear 10 drives the second idle gear 80 to rotate, the second idle gear 80 drives the first-gear input gear 13 to rotate, at the moment, the first pressing block 206 of the second clutch shaft 40 presses tightly to press the corresponding driving friction plate 204 and the corresponding driven friction plate 205, so that the second-gear 12 rotates, the second-gear 12 drives the second-gear transmission gear 17 to rotate, the second-gear transmission gear 17 drives the transmission shaft 18 to rotate, the transmission shaft 18 rotates to rotate, so that the transmission shaft output gear 20 rotates, the transmission shaft output gear 20 drives the first output gear 21 to rotate, so that the front output shaft 23 rotates, and the front output connecting flange 22 outputs;
at this time, the front-mounted two-wheel drive is adopted, when the third pressing block 2110 on the axle shaft 60 presses the corresponding driving friction plate 204 and the corresponding driven friction plate 205, the axle shaft 60 rotates to drive the axle-disengaging transmission gear 26 to rotate, the axle-disengaging transmission gear 26 drives the rear output gear 27 to rotate, the rear output gear 27 drives the rear output shaft 50 to rotate, the rear output connecting flange 28 rotates, and the four-wheel drive is realized.
Forward third gear: the first clutch shaft 30 rotates, the first pressing block 206 of the first clutch shaft 30 presses to press the corresponding driving friction plate 204 and driven friction plate 205, so that the forward gear 10 rotates, the forward gear 10 drives the second idle gear 80 to rotate, the second idle gear 80 drives the first-gear input gear 13 to rotate, at this time, the first pressing block 206 and the second pressing block 207 of the second clutch shaft 40 are not pressed, at this time, the transmission gear 15 rotates and drives the reverse gear 11 to rotate, the reverse gear 11 and the third input gear 9 rotate simultaneously, the third input gear 9 drives the third gear 6 to rotate, at this time, the third pressing block 2110 on the third clutch shaft 70 presses to press the corresponding driving friction plate 204 and driven friction plate 205, so that the third transmission gear 5 rotates and drives the idle gear 3 to rotate, the idle gear 3 drives the first output gear 21 to rotate, and the follow-up operation is the same as the previous first gear and second gear, so that the four-wheel drive operation is realized.
Backing off a first gear: the first clutch shaft 30 rotates, the second pressing block 207 of the first clutch shaft 30 presses tightly, so that the corresponding driving friction plate 204 and the corresponding driven friction plate 205 are pressed tightly, the reverse gear 11 rotates, the reverse gear 11 drives the transmission gear 15 to rotate, at the moment, the second pressing block 207 on the second clutch shaft 40 presses tightly, so that the corresponding driving friction plate 204 and the corresponding driven friction plate 205 are pressed tightly, so that the second clutch 40 rotates, the first gear 14 drives the first gear transmission gear 19 to rotate, so that the transmission shaft 18 rotates, the transmission shaft 18 drives the transmission shaft output gear 20 to rotate, the transmission shaft output gear 20 drives the first output gear 21 to rotate, so that the front output shaft 23 rotates, and the front output connecting flange 22 outputs;
at this time, the front-mounted two-wheel drive is adopted, when the third pressing block 2110 on the axle shaft 60 presses the corresponding driving friction plate 204 and the corresponding driven friction plate 205, the axle shaft 60 rotates to drive the axle-disengaging transmission gear 26 to rotate, the axle-disengaging transmission gear 26 drives the rear output gear 27 to rotate, the rear output gear 27 drives the rear output shaft 50 to rotate, the rear output connecting flange 28 rotates, and the four-wheel drive is realized.
A backward second gear: the first clutch shaft 30 rotates, the second pressing block 207 of the first clutch shaft 30 presses tightly, so that the corresponding driving friction plate 204 and the corresponding driven friction plate 205 are pressed tightly, the reverse gear 11 rotates, the reverse gear 11 drives the transmission gear 15 to rotate, at the moment, the first pressing block 206 on the second clutch shaft 40 presses tightly, so that the corresponding driving friction plate 204 and the corresponding driven friction plate 205 are pressed tightly, the second clutch 40 rotates, the second gear 12 drives the second gear transmission gear 17 to rotate, so that the transmission shaft 18 rotates, the transmission shaft 18 drives the transmission shaft output gear 20 to rotate, the transmission shaft output gear 20 drives the first output gear 21 to rotate, so that the front output shaft 23 rotates, and the front output connecting flange 22 outputs;
at this time, the front-mounted two-wheel drive is adopted, when the third pressing block 2110 on the axle shaft 60 presses the corresponding driving friction plate 204 and the corresponding driven friction plate 205, the axle shaft 60 rotates to drive the axle-disengaging transmission gear 26 to rotate, the axle-disengaging transmission gear 26 drives the rear output gear 27 to rotate, the rear output gear 27 drives the rear output shaft 50 to rotate, the rear output connecting flange 28 rotates, and the four-wheel drive is realized.
A reverse third gear: the first clutch shaft 30 rotates, the second pressing block 207 of the first clutch shaft 30 presses, so that the corresponding driving friction plate 204 and the corresponding driven friction plate 205 are pressed, the third-gear input gear 9 rotates, the third-gear input gear 9 drives the third-gear 6 to rotate, the third pressing block 2110 on the third clutch shaft 70 presses, so that the corresponding driving friction plate 204 and the corresponding driven friction plate 205 are pressed, the third-gear transmission gear 5 rotates and drives the idle gear 3 to rotate, the idle gear 3 drives the first output gear 21 to rotate, and the four-wheel drive operation is realized as the previous first-gear and second-gear backing operation.
In this embodiment, the front output connecting flange 22 and the rear output connecting flange 28 can be connected to a universal joint.
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (7)
1. A four-wheel-drive cross country forklift gearbox with a plurality of backward gears comprises a gearbox body (100), wherein a torque converter (20) is fixed on the upper wall surface of the right side of the gearbox body (100), and a turbine shaft (201) of the torque converter (20) is connected with a first clutch shaft (30) on the gearbox body (100); the method is characterized in that: a third-gear clutch shaft (70), a first clutch shaft (30), a second clutch shaft (40), a transmission shaft (18), a front output shaft (23), a bridge release shaft (60) and a rear output shaft (50) are hinged on the gearbox body (100); an idler shaft (4) is hinged on the gearbox body (100) through a bearing, and an idler gear (3) is fixed on the idler shaft (4);
the first clutch shaft (30) is provided with a third-gear input gear (9) and a reverse gear (11), the second clutch shaft (40) is provided with a transmission gear (15), a first-gear (14) and a second-gear (12), and the bridge disengaging shaft (60) is provided with a bridge disengaging transmission gear (26) and a bridge disengaging gear (25);
a second-gear transmission gear (17), a first-gear transmission gear (19) and a transmission shaft output gear (20) are arranged on the transmission shaft (18);
a first output gear (21) and a second output gear (211) are mounted on the front output shaft (23);
a rear output gear (27) is mounted on the rear output shaft (50);
a third gear (6) and a third gear transmission gear (5) are mounted on the third gear clutch shaft (70);
the reverse gear (11) is meshed with the transmission gear (15), the third-gear input gear (9) is meshed with the third-gear (6), the first-gear (14) is meshed with the first-gear transmission gear (19), the second-gear transmission gear (17) is meshed with the second-gear (12), the transmission shaft output gear (20) is meshed with the first output gear (21), the second output gear (211) is meshed with the bridge-disengaging gear (25), the rear output gear (27) is meshed with the bridge-disengaging transmission gear (26), the third-gear transmission gear (5) is meshed with the idle gear (3), and the idle gear (3) is meshed with the first output gear (21);
the first clutch shaft (30) is provided with a forward gear (10), the second clutch shaft (40) is provided with a second gear input gear (13), and the forward gear (10) and the second gear input gear (13) are transmitted through a second idle gear (80).
2. The four-wheel off-road forklift gearbox with multiple backward gears as claimed in claim 1, wherein: a second idle gear shaft (81) is hinged to the gearbox body (100) through a bearing, a second idle gear (80) is fixed to the second idle gear shaft (81), and the second idle gear (80) is meshed with the forward gear (10).
3. The four-wheel off-road forklift gearbox with multiple backward gears as claimed in claim 1, wherein: the first-second gear input gear (13) is meshed with a second idle gear (80).
4. The four-wheel off-road forklift gearbox of multi-gear backward as claimed in claim 3, characterized in that: the three-gear clutch shaft (70), the first clutch shaft (30), the second clutch shaft (40), the transmission shaft (18), the front output shaft (23), the rear output shaft (50) and the axle disengaging shaft (60) are hinged to the gearbox body (100) through bearings.
5. The four-wheel off-road forklift gearbox with multiple backward gears as claimed in claim 2, wherein: an idler shaft (4) and a second idler shaft (81) are fixed on the gearbox body (100).
6. The four-wheel off-road forklift gearbox with multiple backward gears as claimed in claim 1, wherein: the third-gear transmission gear (5) is fixed on a third-gear clutch shaft (70); the three-gear input gear (9) and the reverse gear (11) are formed on the same connecting shaft sleeve part (90), and the connecting shaft sleeve part (90) is hinged to the first clutch shaft (30) through a bearing.
7. The four-wheel off-road forklift gearbox of multi-gear backward as claimed in claim 3, characterized in that: the transmission gear (15) and the first-gear input gear (13) are fixed on the second clutch shaft (40); the first-gear transmission gear (19), the second-gear transmission gear (17) and the transmission shaft output gear (20) are fixed on the transmission shaft (18); a first output gear (21) and a second output gear (211) are fixed on the front output shaft (23); a rear output gear (27) is fixed on the rear output shaft (50); the bridge-off shaft (60) is fixed with a bridge-off transmission gear (26) and is hinged with a bridge-off gear (25) through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635105.4A CN113294505B (en) | 2021-06-08 | 2021-06-08 | Four-wheel-drive cross-country forklift gearbox with multiple backward gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635105.4A CN113294505B (en) | 2021-06-08 | 2021-06-08 | Four-wheel-drive cross-country forklift gearbox with multiple backward gears |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113294505A CN113294505A (en) | 2021-08-24 |
| CN113294505B true CN113294505B (en) | 2022-04-29 |
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| CN202110635105.4A Active CN113294505B (en) | 2021-06-08 | 2021-06-08 | Four-wheel-drive cross-country forklift gearbox with multiple backward gears |
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| KR100254445B1 (en) * | 1996-12-31 | 2000-08-01 | 정몽규 | Gear train for forward 3 speed and backward 1 speed automatic transmission |
| JP3626383B2 (en) * | 1999-12-17 | 2005-03-09 | 本田技研工業株式会社 | 4WD drive force extraction structure |
| CN201531579U (en) * | 2009-09-18 | 2010-07-21 | 徐州良羽科技有限公司 | Countershaft transmission of engineering machinery |
| DE102016203502A1 (en) * | 2016-03-03 | 2017-09-07 | Zf Friedrichshafen Ag | Powershift transmission for working machines |
| 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 |
| CN206107320U (en) * | 2016-08-31 | 2017-04-19 | 浙江美科斯叉车有限公司 | Cross -country back steering axle hydro -cylinder structure of 4 wheel driven |
| KR20210013453A (en) * | 2019-07-25 | 2021-02-04 | 현대자동차주식회사 | Power transmission system of hybrid electric vehicle |
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Denomination of invention: A four-wheel drive off-road forklift gearbox with multiple reverse gears Granted publication date: 20220429 Pledgee: Industrial and Commercial Bank of China Limited Xinchang sub branch Pledgor: ZHEJIANG ZHONGCHAI MACHINERY Co.,Ltd. Registration number: Y2024330000354 |