CN108413023B - Adjusting mechanism for axial gap of forklift gear shift lever - Google Patents
Adjusting mechanism for axial gap of forklift gear shift lever Download PDFInfo
- Publication number
- CN108413023B CN108413023B CN201810456137.6A CN201810456137A CN108413023B CN 108413023 B CN108413023 B CN 108413023B CN 201810456137 A CN201810456137 A CN 201810456137A CN 108413023 B CN108413023 B CN 108413023B
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- China
- Prior art keywords
- shaped ring
- movable plug
- annular groove
- adjusting bolt
- gear
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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
- F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0278—Constructional features of the selector lever, e.g. grip parts, mounting or manufacturing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses an adjusting mechanism for axial gaps of a forklift gear shift lever, which comprises a first O-shaped ring, a shaft arm, an adjusting bolt, a nut, a second O-shaped ring and a movable plug. The bottom of the center hole of the shaft arm is provided with a threaded hole, an adjusting bolt is installed in the threaded hole, and the adjusting bolt is locked by a nut. The movable plug is arranged in the central hole, a first annular groove is formed in the outer circle of the movable plug, a second O-shaped ring used for sealing is arranged in the first annular groove, a second annular groove is formed in the outer circle of the shaft arm, a first O-shaped ring is arranged in the second annular groove, and the first O-shaped ring and the second O-shaped ring are oil-resistant rubber O-shaped rings and are used for sealing transmission oil in a gearbox. When the gear shifting rod is used, the movable plug is propped against by the adjusting bolt, so that the gap between the movable plug and the gear shifting rod is eliminated, and then the axial gap of the gear shifting rod during installation is eliminated. The invention has high adjustment efficiency, improves the installation consistency of the gear shift lever and improves the assembly quality of the gear shift lever.
Description
Technical Field
The invention relates to the technical field of forklift gear shifting, in particular to an adjusting mechanism for axial clearance of a forklift gear shifting lever.
Background
The gear shifting lever of the mechanical forklift is a supporting mechanism when the mechanical forklift performs manual gear shifting operation, and the gear shifting lever is fixed when the forklift shifts gears. Therefore, the shift lever must be reliably installed without allowing axial play. Referring to fig. 5, currently, one end of the shift lever 3 is installed in a counter bore of the gearbox housing 2, and the other end is installed in a hole of the original shaft arm 12, and due to the existence of manufacturing errors, an axial gap exists after the shift lever 3 is installed, adjustment is required by adding an adjustment gasket 13, and the thickness of the adjustment gasket 13 added by each shift lever is not fixed. And after the adjusting gasket 13 is added, whether the gap is completely eliminated or not, detection and judgment are needed, the installation and adjustment efficiency is low, the installation consistency is not ensured, and the assembly quality of the gear shift lever 3 is affected.
Disclosure of Invention
In order to eliminate the axial gap existing during the installation of the gear shift lever and avoid the axial movement of the gear shift lever, the invention provides an adjusting mechanism for the axial gap of the gear shift lever of a forklift.
The adjusting mechanism for the axial gap of the gear lever of the forklift comprises a gearbox shell 2, a gear lever 3 and an axle arm 5, wherein one end of the gear lever 3 is installed in a counter bore on one side of the gearbox shell 2, the other end of the gear lever is installed in a central hole 52 of the axle arm 5 on the other side of the gearbox shell 2, a first O-shaped ring 4 is arranged between the axle arm 5 and the gearbox shell 2, the axle arm 5 is installed on the gearbox shell 2 through two bolts 10, two gear shifting forks 9 are sleeved on the outer circle of the gear lever, and the gear shifting forks 9 axially slide along the gear lever; the outer circle of the shaft arm 5 is provided with a second annular groove 51, and a first O-shaped ring 4 is arranged in the second annular groove 51.
A threaded hole 53 is arranged at the bottom of the central hole 52 of the shaft arm 5, an adjusting bolt 6 is arranged in the threaded hole 53, and the adjusting bolt 6 is locked by a nut 7; the movable plug 11 is arranged in the central hole 52, and the movable plug 11 is propped against by the adjusting bolt 6, so that the gap between the movable plug 11 and the gear shift lever is eliminated, and then the axial gap during the installation of the gear shift lever is eliminated.
The further defined technical scheme is as follows:
The excircle of the movable plug 11 is provided with a first annular groove, and a second O-shaped ring 8 for sealing is arranged in the first annular groove. The first O-shaped ring 4 and the second O-shaped ring 8 are oil-resistant rubber O-shaped rings.
The thread of the adjusting bolt 6 is a fine thread.
The beneficial technical effects of the invention are as follows:
(1) A movable plug is arranged between the gear shifting rod and the adjusting bolt, so that the adjusting bolt is prevented from being in direct contact with the gear shifting rod, the movable plug is propped against the adjusting bolt, and then a gap between the movable plug and the gear shifting rod is eliminated.
(2) An O-shaped sealing ring is arranged between the movable plug and the rotating arm, so that transmission oil in the gearbox is sealed.
(3) The axial gap adjustment of the gear shifting lever is convenient and quick, and the consistency of the installation and adjustment of the gear shifting lever can be ensured.
Drawings
FIG. 1 is a cross-sectional view of the present invention mounted on a transmission housing.
FIG. 2 is a schematic diagram of the structure of the present invention.
Fig. 3 is a cross-sectional view of the structure of the axle arm of the present invention.
FIG. 4 is a schematic illustration of the location of the present invention on a transmission housing.
Fig. 5 is a sectional view showing the installation of the original shift lever.
Number in the drawings: the gear box comprises a gear box shell 2, a gear shifting lever 3, a first O-shaped ring 4, a shaft arm 5, a second annular groove 51, a central hole 52, a threaded hole 53, an adjusting bolt 6, a nut 7, a second O-shaped ring 8, a gear shifting fork 9, a bolt 10, a movable plug 11, an original shaft arm 12 and an adjusting pad 13.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
Embodiment one:
Referring to fig. 2 and 3, an adjusting mechanism for axial clearance of a forklift gear lever comprises a first O-ring 4, a shaft arm 5, an adjusting bolt 6, a nut 7, a second O-ring 8 and a movable plug 11. The hole bottom of the central hole 52 of the shaft arm 5 is provided with a threaded hole 53, an adjusting bolt 6 is installed in the threaded hole 53, and the adjusting bolt 6 is locked by a nut 7. A movable plug 11 is provided in the central hole 52. The excircle of the movable plug 11 is provided with a first annular groove, and a second O-shaped ring 8 for sealing is arranged in the first annular groove. The outer circle of the shaft arm 5 is provided with a second annular groove 51, and a first O-shaped ring 4 is arranged in the second annular groove 51. The first O-shaped ring 4 and the second O-shaped ring 8 are oil-resistant rubber O-shaped rings and are used for sealing transmission oil in a gearbox.
Referring to fig. 1 and 4, one end of a gear shift lever 3 is installed in a counter bore on one side of a gear shift housing 2, the other end of the gear shift lever 3 is installed in a central hole 52 of a shaft arm 5 on the other side of the gear shift housing 2, the shaft arm 5 is installed on the gear shift housing 2 through two bolts 10, two gear shift forks 9 are sleeved on the outer circle of the gear shift lever 3, and the gear shift forks 9 axially slide along the gear shift lever 3. The clearance between the movable plug 11 and the gear shift lever 3 is eliminated by the adjusting bolt 6 pushing against the movable plug 11, and then the axial clearance when the gear shift lever is installed is eliminated. The gap adjusting mechanism is high in adjusting efficiency, the installation consistency of the gear shift lever 3 is improved, and the assembly quality of the gear shift lever 3 is improved.
The above is not intended to limit the structure, shape, or any form of the present invention. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (2)
1. The utility model provides an adjustment mechanism for fork truck gear lever axial clearance, includes gearbox casing (2), gear lever (3) and axle arm (5), the counter bore of one side in gearbox casing (2) is installed to one end of gear lever (3), the other end of gear lever is installed in centre bore (52) of axle arm (5) of gearbox casing (2) opposite side, be equipped with first O type circle (4) between axle arm (5) and gearbox casing (2), install on gearbox casing (2) axle arm (5) through two bolts (10), suit two shift forks (9) on the excircle of gear lever, shift forks (9) slide along the gear lever axial; the outer circle of the shaft arm (5) is provided with a second annular groove (51), and a first O-shaped ring (4) is arranged in the second annular groove (51);
The method is characterized in that: a threaded hole (53) is formed in the bottom of the central hole (52) of the shaft arm (5), an adjusting bolt (6) is installed in the threaded hole (53), and the adjusting bolt (6) is locked by a nut (7); a movable plug (11) is arranged in the central hole (52), and the movable plug (11) is propped by the adjusting bolt (6) to eliminate the gap between the movable plug (11) and the gear shift lever, so that the axial gap during the installation of the gear shift lever is eliminated;
The outer circle of the movable plug (11) is provided with a first annular groove, and a second O-shaped ring (8) for sealing is arranged in the first annular groove;
the thread of the adjusting bolt (6) is a fine thread.
2. An adjustment mechanism for axial clearance of a forklift gear lever as set forth in claim 1, wherein: the first O-shaped ring (4) and the second O-shaped ring (8) are oil-resistant rubber O-shaped rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456137.6A CN108413023B (en) | 2018-05-14 | 2018-05-14 | Adjusting mechanism for axial gap of forklift gear shift lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456137.6A CN108413023B (en) | 2018-05-14 | 2018-05-14 | Adjusting mechanism for axial gap of forklift gear shift lever |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108413023A CN108413023A (en) | 2018-08-17 |
| CN108413023B true CN108413023B (en) | 2024-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810456137.6A Active CN108413023B (en) | 2018-05-14 | 2018-05-14 | Adjusting mechanism for axial gap of forklift gear shift lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108413023B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043655A (en) * | 2019-04-10 | 2019-07-23 | 安徽全柴锦天机械有限公司 | Improved mechanical gearbox shifting mechanism |
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| CN204200996U (en) * | 2014-09-19 | 2015-03-11 | 中国第一汽车股份有限公司 | A kind of novel pair of screw thread differential lock air cylinder structure |
| CN106195256A (en) * | 2016-08-31 | 2016-12-07 | 温岭市明华齿轮有限公司 | A kind of gearshift |
| CN208457176U (en) * | 2018-05-14 | 2019-02-01 | 安徽合力股份有限公司 | A kind of adjustment mechanism for fork truck gear lever axial gap |
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| DE10306994B4 (en) * | 2003-02-19 | 2005-12-08 | Man Nutzfahrzeuge Ag | Differential lock of a motor vehicle |
| CN201180780Y (en) * | 2008-03-31 | 2009-01-14 | 重庆建设摩托车股份有限公司 | Floating declutch shift shaft structure of engine |
| CN101639101B (en) * | 2009-08-28 | 2011-01-05 | 贾亮亮 | Clutch mechanism and transmission device of hole opening machine using clutch mechanism |
| CN201723612U (en) * | 2010-06-04 | 2011-01-26 | 任孺牛 | Radial swelling clutch of gear |
| CN201787055U (en) * | 2010-08-31 | 2011-04-06 | 陈恳 | Mounting structure for declutch shift shaft on box body of cultivator speed-changing box |
| CN202756600U (en) * | 2012-08-10 | 2013-02-27 | 第一拖拉机股份有限公司 | Gear shifting control mechanism of gear box of tractor |
| DE102014204617A1 (en) * | 2014-03-13 | 2015-09-17 | Zf Friedrichshafen Ag | Switching device of an automated manual transmission |
| CN105065635A (en) * | 2015-07-24 | 2015-11-18 | 重庆隆旺机电有限责任公司 | Main reducer assembly with automatic gear shifting function |
| CN205173433U (en) * | 2015-11-30 | 2016-04-20 | 湖北江山汽车变速箱有限公司 | Seal structure of gearbox cylinder declutch shift shaft and odd -side box |
| CN205298517U (en) * | 2015-12-03 | 2016-06-08 | 重庆凌傲机械有限公司 | Agricultural machinery changes fork axle assembly with shifting |
| CN106438997B (en) * | 2016-09-27 | 2018-11-27 | 张道勤 | A kind of stepless assisted hydraulic control manual transmission |
| CN206221632U (en) * | 2016-12-07 | 2017-06-06 | 广西鹿寨县华光机械制造有限责任公司 | Mini-tiller reverse gear switching device |
| CN206530693U (en) * | 2017-01-22 | 2017-09-29 | 南京奥联新能源有限公司 | Gearbox shifting executing agency |
| CN206668949U (en) * | 2017-03-27 | 2017-11-24 | 洛阳雷斯达传动有限公司 | A kind of gearshift for transfer gear |
| CN107448559A (en) * | 2017-07-18 | 2017-12-08 | 重庆福特来动力科技有限公司 | Height two-shift automatic variable speed case |
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2018
- 2018-05-14 CN CN201810456137.6A patent/CN108413023B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204200996U (en) * | 2014-09-19 | 2015-03-11 | 中国第一汽车股份有限公司 | A kind of novel pair of screw thread differential lock air cylinder structure |
| CN106195256A (en) * | 2016-08-31 | 2016-12-07 | 温岭市明华齿轮有限公司 | A kind of gearshift |
| CN208457176U (en) * | 2018-05-14 | 2019-02-01 | 安徽合力股份有限公司 | A kind of adjustment mechanism for fork truck gear lever axial gap |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108413023A (en) | 2018-08-17 |
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