CN109296725B - Double-speed gearbox for small-tonnage forklift - Google Patents
Double-speed gearbox for small-tonnage forklift Download PDFInfo
- Publication number
- CN109296725B CN109296725B CN201811397795.9A CN201811397795A CN109296725B CN 109296725 B CN109296725 B CN 109296725B CN 201811397795 A CN201811397795 A CN 201811397795A CN 109296725 B CN109296725 B CN 109296725B
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- Prior art keywords
- gear
- clutch
- shaft
- gear clutch
- shell
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- 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.)
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- 230000009977 dual effect Effects 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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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- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention relates to a double-speed gearbox for a small tonnage forklift truck, which comprises a torque converter, an input shaft, a second gear clutch shaft, an output shaft and a first gear clutch shaft which are arranged in a shell, wherein a clutch shell gear is fixed on the input shaft, a reversing clutch gear is sleeved on the input shaft, a second gear clutch shell gear is fixed on the second gear clutch shaft, a second gear clutch gear is sleeved on the second gear clutch shaft, the first gear clutch shaft is fixedly provided with a first gear clutch shell gear, a first gear clutch gear is sleeved on the first gear clutch shaft, the output shaft is fixedly provided with a first gear and a second gear, the clutch shell gear is respectively meshed with the second gear clutch shell gear and the first gear clutch shell gear, the reversing clutch is meshed with the first gear, the second gear clutch gear is meshed with the second gear, and the first gear clutch gear is meshed with the first gear. The gearbox provided by the invention provides a double-speed gearbox with a compact structure for a forklift, meets various working conditions and is convenient to use.
Description
Technical Field
The invention belongs to the field of gearboxes, and particularly relates to a double-speed gearbox for a small-tonnage forklift.
Background
The main function of the gearbox is to adapt to the high-speed running of the vehicle on various road conditions, such as starting, accelerating, climbing and flattening, and the gearbox changes the torque and the speed output by the engine so as to adapt to the running driving requirement. The forward and reverse movement of the forklift is also addressed by the transmission, since the engine cannot be reversed. In addition, the gearbox can also disconnect the operation of the engine and the drive system from each other for a longer period of time.
However, the existing gearbox for the small-tonnage forklift is large in volume, simple in structure, and only has a one-gear speed ratio, and cannot meet the requirements of high-speed running and climbing at the same time, particularly in off-road conditions, and is inconvenient to use.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the double-speed gearbox for the small-tonnage forklift with a compact structure.
In order to achieve the above object, the present invention adopts the following technical scheme:
the double-speed gearbox for the small tonnage forklift comprises a torque converter, an input shaft, a second gear clutch shaft, an output shaft and a first gear clutch shaft which are arranged in a shell,
the torque converter is arranged at one end of the input shaft, a clutch housing gear is fixed on the input shaft, a reversing clutch gear is sleeved on the input shaft, and the clutch housing gear is connected with the reversing clutch gear through a reversing clutch arranged on the input shaft;
the second-gear clutch shaft is fixedly provided with a second-gear clutch shell gear, the second-gear clutch shaft is also sleeved with a second-gear clutch gear, and the second-gear clutch shell gear is connected with the second-gear clutch gear through a second-gear clutch arranged on the second-gear clutch shaft;
the first gear clutch shaft is fixedly provided with a first gear clutch shell gear, the first gear clutch shaft is sleeved with the first gear clutch gear in an empty mode, and the first gear clutch shell gear is connected with the first gear clutch gear through a first gear clutch arranged on the first gear clutch shell gear;
the output shaft is fixed with a first gear and a second gear,
the clutch housing gear is respectively meshed with the second-gear clutch housing gear and the first-gear clutch housing gear, the reversing clutch is meshed with the first-gear, the second-gear clutch gear is meshed with the second-gear, and the first-gear clutch gear is meshed with the first-gear.
As a preferable scheme: the reversing clutch, the second gear clutch and the first gear clutch are all multi-plate wet friction clutches.
As a preferable scheme: the input shaft, the second-gear clutch shaft, the output shaft and the first-gear clutch shaft are all rotatably arranged in the shell through bearings at two ends, and the output shaft is further provided with a flange.
The transmission of the invention transmits power from an engine to a torque converter, to an input shaft of a speed changer through a turbine on the torque converter, and to an output shaft, a first gear clutch shaft and a second gear clutch shaft respectively through a reversing clutch gear on the input shaft and a gear on a clutch housing, wherein the first gear clutch shaft and the second gear clutch shaft are transmitted to a rear output shaft through a first gear clutch gear and a second gear clutch gear on the first gear clutch shaft and the second gear clutch shaft, and the output shaft is output through an upper output flange. The gearbox provides two-gear speed ratios for a small-tonnage forklift, meets the running of the forklift under various working conditions, particularly off-road conditions, and is more flexible to use.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention along a power transmission path.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The double-speed gearbox for the small tonnage forklift shown in fig. 1 comprises a torque converter 6, an input shaft 5, a second gear clutch shaft 4, an output shaft 3 and a first gear clutch shaft 2 which are arranged in a shell 1,
the torque converter 6 is arranged at one end of the input shaft 5, a clutch housing gear 51 is fixed on the input shaft 5, a reversing clutch gear 53 is sleeved above the input shaft 5, and the clutch housing gear 51 is connected with the reversing clutch gear 53 through a reversing clutch 52 arranged on the input shaft 5;
a second-gear clutch housing gear 41 is fixed on the second-gear clutch shaft 4, a second-gear clutch gear 42 is sleeved on the second-gear clutch shaft 4 in a hollow mode, and the second-gear clutch housing gear 41 is connected with the second-gear clutch gear 42 through a second-gear clutch 43 arranged on the second-gear clutch shaft 4;
a first gear clutch housing gear 21 is fixed on the first gear clutch shaft 2, a first gear clutch gear 22 is sleeved on the first gear clutch shaft 2, and the first gear clutch housing gear 21 is connected with the first gear clutch gear 22 through a first gear clutch 23 arranged on the first gear clutch housing gear 21;
a first gear 32 and a second gear 31 are fixed on the output shaft 3,
the clutch housing gear 51 is engaged with the second-gear clutch housing gear 41 and the first-gear clutch housing gear 21, respectively, the reverse clutch 52 is engaged with the first-gear 32, the second-gear clutch gear 42 is engaged with the second-gear 31, and the first-gear clutch gear 22 is engaged with the first-gear 32.
The reverse clutch 52, the second gear clutch 43 and the first gear clutch 23 are all multi-plate wet friction clutches. The input shaft 5, the second-gear clutch shaft 4, the output shaft 3 and the first-gear clutch shaft 2 are all rotatably arranged in the shell 1 through bearings at two ends, and the output shaft 3 is also provided with a flange.
When the reversing clutch of the invention is released, the clutch housing gear 51 drives the first gear clutch housing gear 21 and the second gear clutch housing gear 41 at the same time, the power on the input shaft 5 is respectively transmitted to the first gear clutch shaft 2 and the second gear clutch shaft 4,
when the first-gear clutch 23 is engaged and the second-gear clutch 43 is released, the first-gear clutch gear 22 drives the first-gear 32, the power on the first-gear clutch shaft 2 is transmitted to the output shaft 3 at a first gear ratio,
when the first-gear clutch 23 is released and the second-gear clutch 43 is engaged, the second-gear clutch gear 42 drives the second-gear 31, and the power on the second-gear clutch shaft 4 is transmitted to the output shaft 3 at a second-gear speed ratio.
When the reversing clutch 52 is combined, the power on the input shaft 5 drives the first gear 32 to be transmitted to the output shaft 3 through the reversing clutch gear 53, so that the reversing function is realized.
It should be noted that the above embodiments are merely representative examples of the present invention. Many variations of the invention are possible. Any simple modification, equivalent variation and modification of the above embodiments according to the principles of the present invention should be considered to fall within the scope of the present invention.
Claims (3)
1. The utility model provides a dual speed gearbox for small-tonnage fork truck which characterized in that: comprises a torque converter (6), an input shaft (5), a second-gear clutch shaft (4), an output shaft (3) and a first-gear clutch shaft (2) which are arranged in a shell (1),
the torque converter (6) is arranged at one end of the input shaft (5), a clutch housing gear (51) is fixed on the input shaft (5), a reversing clutch gear (53) is sleeved on the input shaft (5), and the clutch housing gear (51) is connected with the reversing clutch gear (53) through a reversing clutch (52) arranged on the input shaft (5);
a second-gear clutch housing gear (41) is fixed on the second-gear clutch shaft (4), a second-gear clutch gear (42) is sleeved on the second-gear clutch shaft (4), and the second-gear clutch housing gear (41) is connected with the second-gear clutch gear (42) through a second-gear clutch (43) arranged on the second-gear clutch shaft (4);
a first gear clutch housing gear (21) is fixed on the first gear clutch shaft (2), a first gear clutch gear (22) is sleeved on the first gear clutch shaft (2), and the first gear clutch housing gear (21) is connected with the first gear clutch gear (22) through a first gear clutch (23) arranged on the first gear clutch housing gear (21);
a first gear (32) and a second gear (31) are fixed on the output shaft (3),
the clutch housing gear (51) is respectively meshed with the second-gear clutch housing gear (41) and the first-gear clutch housing gear (21), the reversing clutch (52) is meshed with the first-gear (32), the second-gear clutch gear (42) is engaged with the second-gear (31), and the first-gear clutch gear (22) is engaged with the first-gear (32).
2. The dual speed gearbox for a small tonnage forklift as claimed in claim 1, wherein: the reversing clutch (52), the second gear clutch (43) and the first gear clutch (23) are all multi-plate wet friction clutches.
3. The dual speed gearbox for a small tonnage forklift as claimed in claim 1, wherein: the input shaft (5), the second-gear clutch shaft (4), the output shaft (3) and the first-gear clutch shaft (2) are all rotatably arranged in the shell (1) through bearings at two ends, and the output shaft (3) is further provided with a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811397795.9A CN109296725B (en) | 2018-11-22 | 2018-11-22 | Double-speed gearbox for small-tonnage forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811397795.9A CN109296725B (en) | 2018-11-22 | 2018-11-22 | Double-speed gearbox for small-tonnage forklift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109296725A CN109296725A (en) | 2019-02-01 |
| CN109296725B true CN109296725B (en) | 2024-02-20 |
Family
ID=65144735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811397795.9A Active CN109296725B (en) | 2018-11-22 | 2018-11-22 | Double-speed gearbox for small-tonnage forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109296725B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278713A (en) * | 2021-12-22 | 2022-04-05 | 采埃孚合力传动技术(合肥)有限公司 | Hydraulic transmission case of small-tonnage forklift |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0412069A1 (en) * | 1989-08-01 | 1991-02-06 | IVECO FIAT S.p.A. | Hydromechanical power-shift transmission for motor vehicles, particularly for commercial vehicles |
| CN201582365U (en) * | 2009-12-24 | 2010-09-15 | 杭州前进齿轮箱集团股份有限公司 | Multi-gear hydrodynamic transmission |
| JP2012149715A (en) * | 2011-01-20 | 2012-08-09 | Tcm Corp | Constant mesh transmission |
| CN106678326A (en) * | 2017-02-16 | 2017-05-17 | 陈云珠 | Hydrodynamic transmission for light vehicle |
| CN207213053U (en) * | 2017-08-16 | 2018-04-10 | 青州市天增益齿轮箱厂 | A kind of loading machine gearbox with reasonable gear arrangement |
| CN209324966U (en) * | 2018-11-22 | 2019-08-30 | 浙江金道科技股份有限公司 | Small tonnage fork car double-velocity transmission |
-
2018
- 2018-11-22 CN CN201811397795.9A patent/CN109296725B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0412069A1 (en) * | 1989-08-01 | 1991-02-06 | IVECO FIAT S.p.A. | Hydromechanical power-shift transmission for motor vehicles, particularly for commercial vehicles |
| CN201582365U (en) * | 2009-12-24 | 2010-09-15 | 杭州前进齿轮箱集团股份有限公司 | Multi-gear hydrodynamic transmission |
| JP2012149715A (en) * | 2011-01-20 | 2012-08-09 | Tcm Corp | Constant mesh transmission |
| CN106678326A (en) * | 2017-02-16 | 2017-05-17 | 陈云珠 | Hydrodynamic transmission for light vehicle |
| CN207213053U (en) * | 2017-08-16 | 2018-04-10 | 青州市天增益齿轮箱厂 | A kind of loading machine gearbox with reasonable gear arrangement |
| CN209324966U (en) * | 2018-11-22 | 2019-08-30 | 浙江金道科技股份有限公司 | Small tonnage fork car double-velocity transmission |
Non-Patent Citations (1)
| Title |
|---|
| 3～3.5吨叉车五挡位机械变速箱的设计;杨昌新;季王卫;;机械工程师(第04期);全文 * |
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| CN109296725A (en) | 2019-02-01 |
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Address after: 312065 no.689, Bujin Road, Keqiao District, Shaoxing City, Zhejiang Province Applicant after: ZHEJIANG JINDAO TECHNOLOGY Co.,Ltd. Address before: Room 393, complex building, 586 West Ring Road, Keqiao Economic Development Zone, Keqiao District, Shaoxing City, Zhejiang Province Applicant before: ZHEJIANG JINDAO TECHNOLOGY Co.,Ltd. |
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