CN212643474U - Four-wheel-drive cross-country forklift gearbox - Google Patents
Four-wheel-drive cross-country forklift gearbox Download PDFInfo
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- CN212643474U CN212643474U CN202021148848.6U CN202021148848U CN212643474U CN 212643474 U CN212643474 U CN 212643474U CN 202021148848 U CN202021148848 U CN 202021148848U CN 212643474 U CN212643474 U CN 212643474U
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Abstract
The utility model discloses a four-wheel drive cross-country forklift gearbox, 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 first driven shaft, a second driven shaft, a first clutch shaft, a second clutch shaft, an output shaft and a bridge disengaging shaft are hinged to the gearbox body; an input gear, a first main transmission gear and a first transmission gear are mounted on the first clutch shaft, a main transmission gear, a second main transmission gear and a second transmission gear are mounted on the second clutch shaft, and a bridge-disengaging gear is mounted on the bridge-disengaging shaft; the forward 2-gear and backward 2-gear arrangement is adopted, so that the requirement of backward power is met, and the power requirements of backward climbing and backward driving are improved.
Description
The technical field is as follows:
the utility model relates to a derailleur technical field, more specifically the utility model relates to a four-wheel drive cross country fork truck gearbox that says so.
Background art:
the hydraulic transmission gearbox in the field of forklift manufacturing has the advantages that the power output is mostly single-side two-drive output, the gearbox can only meet the use requirement of an ordinary two-wheel drive forklift, the gearbox of the off-road forklift requiring four-wheel drive generally adopts a mode of modifying the gearbox of a tractor and a loader, the functions and the performances are not matched with the requirements of the forklift, a plurality of time-sharing four-drive gearboxes adopt front and rear double-side four-drive output, a rear axle disengaging device of the gearbox is mainly mechanical rigid disengaging, the parking operation is generally required, and the disengaging is difficult;
some full-time four-wheel drive gearboxes adopt a central differential lock, and have large structural size, high cost, high energy consumption and large tire wear.
Therefore, the four-wheel-drive off-road hydraulic transmission with the Chinese patent publication No. CN105782388A adopts a wet clutch to disengage, the disengaging control is simple and rapid, the box body is simple to manufacture, and a front axle output shaft and a rear axle output shaft are directly connected with a front axle and a rear axle, so that the whole vehicle is convenient to arrange. However, it has only a single reverse gear and the reverse capability is insufficient.
The utility model has the following contents:
the utility model aims at overcoming prior art's not enough, providing a four-wheel drive cross country fork truck gearbox, it adopts 2 keeps off and retreat 2 fender settings for it satisfies the needs of retreating power, improves the power needs of retreating the climbing and retreating the driving.
The utility model provides a technical problem's scheme is:
a four-wheel-drive cross-country forklift gearbox 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 first driven shaft, a second driven shaft, a first clutch shaft, a second clutch shaft, an output shaft and a bridge disengaging shaft are hinged to the gearbox body;
an input gear, a first main transmission gear and a first transmission gear are mounted on the first clutch shaft, a main transmission gear, a second main transmission gear and a second transmission gear are mounted on the second clutch shaft, and a bridge-disengaging gear is mounted on the bridge-disengaging shaft;
a first gear, a second gear and a third gear are mounted on the first driven shaft; a fourth gear, a fifth gear and a sixth gear are mounted on the second driven shaft; a seventh gear and an eighth gear are arranged on the output shaft;
the input gear is meshed with the main transmission gear, the first main transmission gear is meshed with the second gear, and the first transmission gear is meshed with the third gear; the second main transmission gear is meshed with the fifth gear, and the second transmission gear is meshed with the sixth gear; the fourth gear is meshed with the seventh gear, and the first gear is meshed with the seventh gear; the eighth gear drives the off-bridge gear to rotate.
A transition shaft is fixed in the lower portion of the gearbox body, a transition gear is hinged to the transition shaft through a bearing, an eighth gear is meshed with the transition gear, and the transition gear is meshed with the bridge release gear.
The gearbox body includes the right-hand member lid that is fixed with on main tank body and the right side wall, and the right side wall middle part shaping of right-hand member lid has the installation cavity, and the torque converter is installed in the installation cavity.
The first driven shaft, the second driven shaft, the first clutch shaft, the second clutch shaft, the output shaft and the bridge disengaging shaft are hinged to the left side plate and the right end cover of the main box body through bearings.
The right end of the axle shaft stretches out of the right end cover, and the left end of the output shaft stretches out of the left side plate of the main box body.
And the left end spline shaft part of the turbine shaft of the torque converter extends out of the right end cover and extends into a spline hole formed at the right end of the first clutch shaft.
The utility model discloses an outstanding effect is:
compared with the prior art, the power transmission device adopts a forward 2-gear and backward 2-gear arrangement, so that the power requirement of backward movement is met, and the power requirements of backward climbing and backward driving are improved.
Description of the drawings:
FIG. 1 is a simplified schematic diagram of the present invention;
FIG. 2 is a schematic structural view of the transmission housing of the present invention;
fig. 3 is a partial enlarged view of the present invention.
The specific implementation mode is as follows:
in the embodiment, as shown in fig. 1 to 3, a four-wheel off-road forklift transmission comprises a transmission case 100, wherein a torque converter 20 is fixed on the upper wall surface of the right side of the transmission case 100, and a turbine shaft 21 of the torque converter 20 is connected with a first clutch shaft 30 on the transmission case 100;
a first driven shaft 70, a second driven shaft 80, a first clutch shaft 30, a second clutch shaft 40, an output shaft 50 and a bridge disengaging shaft 60 are hinged on the gearbox body 100;
the first clutch shaft 30 is hinged with an input gear 33, a first main transmission gear 31 and a first transmission gear 32 through bearings, the second clutch shaft 40 is hinged with a main transmission gear 43, a second main transmission gear 41 and a second transmission gear 42 through bearings, and the bridge-disengaging shaft 60 is hinged with a bridge-disengaging gear 61 through bearings;
a first gear 1, a second gear 2 and a third gear 3 are fixed or molded on the first driven shaft 70; a fourth gear 4, a fifth gear 5 and a sixth gear 6 are fixed or formed on the second driven shaft 80; a seventh gear 7 and an eighth gear 8 are fixed or formed on the output shaft 50 (namely, the above gears can be installed in a manner of being fixed in a split manner or directly formed on the shaft);
the input gear 33 is meshed with the main transmission gear 43, the first main transmission gear 31 is meshed with the second gear 2, and the first transmission gear 32 is meshed with the third gear 3; the second main transmission gear 41 is meshed with the fifth gear 5, and the second transmission gear 42 is meshed with the sixth gear 6; the fourth gear 4 is meshed with the seventh gear 7, and the first gear 1 is meshed with the seventh gear 7; the eighth gear 8 drives the off-bridge gear 61 to rotate.
Further, a transition shaft 90 is fixed in the lower portion of the transmission case 100, a transition gear 91 is hinged on the transition shaft 90 through a bearing, the eighth gear 8 is meshed with the transition gear 91, and the transition gear 91 is meshed with the off-bridge gear 61.
Further, the transmission case 100 includes a main case 101 and a right end cover 102 fixed to a right side wall, a mounting cavity 103 is formed in a middle portion of the right side wall of the right end cover 102, and the torque converter 20 is mounted in the mounting cavity 103.
Further, the first driven shaft 70, the second driven shaft 80, the first clutch shaft 30, the second clutch shaft 40, the output shaft 50 and the axle disengaging shaft 60 are hinged to the left side plate and the right end cover 102 of the main case 101 through bearings.
Further, the right end of the axle-disengaging shaft 60 extends out of the right end cover 102, and the left end of the output shaft 50 extends out of the left side plate of the main box 101.
Further, the left end spline shaft portion of the turbine shaft 21 of the torque converter 20 extends out of the right end cover 102 and into a spline hole formed in the 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 on each of the first main transmission gear 31, the first transmission gear 32, the second main transmission gear 41 and the second transmission gear 42, the two clutch inner hubs 203 are located at two 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 plate 204 and the corresponding driven friction plate 205 are located between the clutch inner hub 203 and the clutch outer hub 202, the corresponding driving friction plate 204 is engaged with external teeth on the clutch inner hub 203, the corresponding driven friction plate 205 is connected with the clutch outer hub 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 two sides of the double clutch outer hub 202, the first presser piece 206 and the second presser piece 207 face the corresponding driving friction plate 204 and driven friction plate 205.
Further, a single clutch outer hub 206 is formed on the axle shaft 60, a single clutch inner hub 206 is formed on the axle gear 61, the single clutch inner hub 206 is located at the single clutch outer hub 206 of the axle shaft 60, the single clutch outer hub 206 is inserted and sleeved on the axle shaft 60, the corresponding driving friction plate 204 and the corresponding driven friction plate 205 are between the single clutch inner hub 203 and the single clutch outer hub 206, 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, a third pressing block 208 is inserted and sleeved on the axle shaft 60, the third pressing block 208 faces the corresponding driving friction plate 204 and driven friction plate 205, and the third pressing block 208 is close to the connecting inner wall of the single clutch outer hub 206.
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;
the torque converter 20 is also a known, known torque converter structure and will not be described in detail.
The working principle is as follows: the first clutch shaft 30 is driven to rotate by the turbine shaft 21 of the torque converter shell 20, the inner end of the turbine shaft 21 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 to a first gear: when the third pressing block 208 on the axle shaft 60 presses the corresponding driving friction plate 204 and driven friction plate 205, the output shaft 50 rotates to drive the eighth gear 8 to rotate, the second gear 8 drives the transition gear 91 to rotate, the transition gear 91 drives the axle gear 61 to rotate, and the axle shaft 60 rotates to realize the rotation of the axle shaft 60, thereby realizing four-wheel drive operation.
Advancing by two stages: the first clutch shaft 30 rotates, the input gear 33 drives the main transmission gear 43 to rotate, the first pressing block 206 of the first clutch shaft 30 is pressed, the corresponding driving friction plate 204 and the corresponding driven friction plate 205 are pressed tightly, so that the first transmission gear 32 rotates, the first transmission gear 32 drives the third gear 3 to rotate, the third gear 3 drives the first driven shaft 70 to rotate, so that the first gear 1 rotates, the first gear 1 drives the seventh gear 7 to rotate, thereby driving the output shaft 50 to rotate, realizing output, namely front-mounted two-drive driving, when the third pressing block 208 on the axle-disengaging shaft 60 presses the corresponding driving friction plate 204 and the corresponding driven friction plate 205, the output shaft 50 rotates to drive the eighth gear 8 to rotate, the second gear 8 drives the transition gear 91 to rotate, the transition gear 91 drives the axle-disengaging gear 61 to rotate, the axle-disengaging shaft 60 is rotated, and therefore four-wheel drive operation is achieved.
Backing off for one gear: when the third pressing block 208 on the axle shaft 60 presses the corresponding driving friction plate 204 and driven friction plate 205, the output shaft 50 rotates to drive the eighth gear 8 to rotate, the second gear 8 drives the transition gear 91 to rotate, the transition gear 91 drives the axle gear 61 to rotate, and the axle shaft 60 rotates to realize the rotation of the axle shaft 60, thereby realizing four-wheel drive operation.
And (4) retreating by two stages: the first clutch shaft 30 rotates, the input gear 33 drives the main transmission gear 43 to rotate, the first pressing block 206 of the second clutch shaft 40 is pressed, the corresponding driving friction plate 204 and the corresponding driven friction plate 205 are pressed tightly, so that the second transmission gear 42 rotates, the second transmission gear 42 drives the sixth gear 6 to rotate, the sixth gear 6 drives the second driven shaft 80 to rotate, so that the fourth gear 4 rotates, the fourth gear 4 drives the seventh gear 7 to rotate, thereby driving the output shaft 50 to rotate, realizing output, namely front-mounted two-drive driving, when the third pressing block 208 on the axle-disengaging shaft 60 presses the corresponding driving friction plate 204 and the corresponding driven friction plate 205, the output shaft 50 rotates to drive the eighth gear 8 to rotate, the second gear 8 drives the transition gear 91 to rotate, the transition gear 91 drives the axle-disengaging gear 61 to rotate, the axle-disengaging shaft 60 is rotated, and therefore four-wheel drive operation is achieved.
In this embodiment, the right end of the axle-disengaging shaft 60 and the left end of the output shaft 50 are both connected with universal couplings. In fig. 2, the parts such as the transmission case 100 are not shown, but the cross-sectional lines are removed for clarity.
Finally, the above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant 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 protection scope of the present invention should be defined by the claims.
Claims (6)
1. A four-wheel drive cross country forklift gearbox, includes gearbox body (100), its characterized in that: a torque converter (20) is fixed on the upper wall surface of the right side of the gearbox body (100), and a turbine shaft (21) of the torque converter (20) is connected with a first clutch shaft (30) on the gearbox body (100);
a first driven shaft (70), a second driven shaft (80), a first clutch shaft (30), a second clutch shaft (40), an output shaft (50) and a bridge release shaft (60) are hinged on the gearbox body (100);
an input gear (33), a first main transmission gear (31) and a first transmission gear (32) are mounted on the first clutch shaft (30), a main transmission gear (43), a second main transmission gear (41) and a second transmission gear (42) are mounted on the second clutch shaft (40), and a bridge disengaging gear (61) is mounted on the bridge disengaging shaft (60);
a first gear (1), a second gear (2) and a third gear (3) are mounted on the first driven shaft (70); a fourth gear (4), a fifth gear (5) and a sixth gear (6) are mounted on the second driven shaft (80); a seventh gear (7) and an eighth gear (8) are arranged on the output shaft (50);
the input gear (33) is meshed with the main transmission gear (43), the first main transmission gear (31) is meshed with the second gear (2), and the first transmission gear (32) is meshed with the third gear (3); the second main transmission gear (41) is meshed with the fifth gear (5), and the second transmission gear (42) is meshed with the sixth gear (6); the fourth gear (4) is meshed with the seventh gear (7), and the first gear (1) is meshed with the seventh gear (7); the eighth gear (8) drives the off-bridge gear (61) to rotate.
2. The four-wheel off-road forklift transmission of claim 1, wherein: a transition shaft (90) is fixed in the lower portion of the gearbox body (100), a transition gear (91) is hinged to the transition shaft (90) through a bearing, an eighth gear (8) is meshed with the transition gear (91), and the transition gear (91) is meshed with the bridge disengaging gear (61).
3. The four-wheel off-road forklift transmission of claim 1, wherein: the gearbox body (100) comprises a main box body (101) and a right side cover (102) fixed on the right side wall, a mounting cavity (103) is formed in the middle of the right side wall of the right side cover (102), and the torque converter (20) is mounted in the mounting cavity (103).
4. A four-wheel off-road forklift transmission as defined in claim 3, wherein: the first driven shaft (70), the second driven shaft (80), the first clutch shaft (30), the second clutch shaft (40), the output shaft (50) and the bridge disengaging shaft (60) are hinged to a left side plate and a right end cover (102) of the main box body (101) through bearings.
5. The four-wheel off-road forklift transmission of claim 4, wherein: the right end of the bridge release shaft (60) extends out of the right end cover (102), and the left end of the output shaft (50) extends out of the left side plate of the main box body (101).
6. A four-wheel off-road forklift transmission as defined in claim 3, wherein: the left end spline shaft part of the turbine shaft (21) of the torque converter (20) extends out of the right end cover (102) and extends into a spline hole formed in the right end of the first clutch shaft (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021148848.6U CN212643474U (en) | 2020-06-19 | 2020-06-19 | Four-wheel-drive cross-country forklift gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021148848.6U CN212643474U (en) | 2020-06-19 | 2020-06-19 | Four-wheel-drive cross-country forklift gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212643474U true CN212643474U (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021148848.6U Active CN212643474U (en) | 2020-06-19 | 2020-06-19 | Four-wheel-drive cross-country forklift gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212643474U (en) |
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2020
- 2020-06-19 CN CN202021148848.6U patent/CN212643474U/en active Active
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