CN201050583Y - Dedicated speed variator for small-sized wheel type engineering machinery - Google Patents
Dedicated speed variator for small-sized wheel type engineering machinery Download PDFInfo
- Publication number
- CN201050583Y CN201050583Y CNU2007200117400U CN200720011740U CN201050583Y CN 201050583 Y CN201050583 Y CN 201050583Y CN U2007200117400 U CNU2007200117400 U CN U2007200117400U CN 200720011740 U CN200720011740 U CN 200720011740U CN 201050583 Y CN201050583 Y CN 201050583Y
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- Prior art keywords
- gear
- reverse
- shaft
- bearing
- constant mesh
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a special transmission for small wheeled engineering machinery. The gear distribution of a driving mechanism effectively improves the reverse-gear speed, working efficiency and operation performance. The structure comprises the driving mechanism, a box body and an operation mechanism. The transmission has three forward gears and a reverse gear; the driving mechanism is provided with a first shaft, a second shaft, a middle shaft and a reverse shaft; eight gears are respectively fixed on the shafts; the first and the second shafts are coaxial and are parallel to the middle shaft and the reverse shaft; the operation mechanism comprises a control arm, a shifting block, a shifting fork and a shifting fork shaft; the control arm pushes the shifting fork to carry out gear shift operation; first gear and reverse gear operations are shifted by a same shifting fork. The utility model has simple structure and convenient use and is widely applicable to small wheeled engineering machinery field, such as a small wheeled loader, etc.
Description
Technical field
The utility model has related to a kind of speed changer, has particularly related to the special-purpose speed changer of a kind of minitype wheeled engineering machinery.
Background technique
In recent years, along with China's rapid economy development, the quickening of town and country construction has promoted the development of China's small engineering machinery, as small sized loader, mini-excavator etc.Domestic small sized loader is chassis or self-control chassis mostly with the wheeled tractor at present, though it is simple in structure, make easily, but usability, working performance are bad, particularly mechanical driving part is transplanted fully from agricultural automobile mostly, uses just to seem not fully up to expectations on the industrial wheeled equipment.The minority manufacturer production with the matching used speed changer of loader, but volume is big, cost is high, complex structure, configuration are undesirable, and rate of fault is higher, the existence of these problems has brought certain difficulty for complete machine manufacturer.
The model utility content
The purpose of this utility model solves deficiency of the prior art exactly, proposed a kind of simple in structure, easy to operate, cost is lower, the special-purpose speed changer of the minitype wheeled engineering machinery of good operation performance.
For achieving the above object, the utility model is by the following technical solutions:
The special-purpose speed changer of a kind of minitype wheeled engineering machinery, comprise driving mechanism, casing and operating mechanism, this speed changer has three forward gearss and a backward gear, be provided with 4 axles and 8 gears in the driving mechanism, first front end stretches out casing, the rear end is bearing in by ball bearing in the bearing hole of casing, and first constant mesh gear on first and first make one; In the first shaftgear inner ring hole, the rear end utilizes ball bearing to be bearing on the casing of speed changer by needle roller bearing support for second front end, and two change gears are fixed on second by spline; The jack shaft two ends are bearing on the casing with ball bearing, by spline jack shaft constant mesh gear, one grade of driving gear, second gear driving gear and countershaft reverse gear are housed on the axle, wherein, jack shaft constant mesh gear and first constant mesh gear constitute the constant mesh gear pair; Reverse gear shaft is arranged on a side of jack shaft, and its two supports is on the housing of speed changer, and the reverse idler gear sky is enclosed within on this axle, constitutes the constant mesh gear pair with countershaft reverse gear; Casing is this transmission support bracket; Operating mechanism comprises: operating handle, shifting block, shift fork, declutch shift shaft.
During gear shift, promote shift fork by operating handle and carry out gear-change operation, one grade and reverse gear operation are stirred by same shift fork, and one grade of speed ratio is 4.737, and the second gear speed ratio is 1.74, and reverse gear ratio is 3.5.
Advantage of the present utility model is:
Be heavy load when 1, advancing work at loader, be the situation of light load when retreating, driving mechanism is redistributed gear, changes one grade, reverse gear ratio, improve the reverse gear speed of a motor vehicle, make it between between one grade, second gear, eliminate reverse gear and cross slow phenomenon, increase work efficiency.
2, cancelled the special-purpose shift fork of reverse gear, one grade and reverse gear operation are stirred by same shift fork, and be easy to use, improved operating characteristics.
Description of drawings
Fig. 1 is the gearing actuator structural representation;
Fig. 2 is the gearing actuator structural representation;
Fig. 3 is the transmission control structural representation;
Fig. 4 is the transmission control structural representation;
Fig. 5 is a gearing actuator transmission schematic representation.
Among the figure: 1, first 2, ball bearing 3, first constant mesh gear 4, needle bearing 5, change gear 6, change gear 7, casing 8, ball bearing 9, second 10, ball bearing 11, jack shaft constant mesh gear 12, second gear driving gear 13, one grade of driving gear 14, countershaft reverse gear 15, jack shaft 16, ball bearing 17, reverse gear shaft 18, reverse idler gear 19, locking plate 20, gear shift cover 21, one, reverse speed shift rod 22, two, third gear declutch shift shaft 23, two, third gear shift fork 24, one, reverse speed fork 25, lock pin 26, shifting block 27, shifting block 28, bulb 29, operating handle
Embodiment
The utility model is the special-purpose speed changer of a kind of minitype wheeled engineering machinery, comprises driving mechanism, casing 7 and operating mechanism, and this speed changer has three forward gearss and a backward gear, is provided with 4 axles and 8 gears in the driving mechanism:
First 1 front end stretches out casing 7, is bearing in the sliding sleeve of engine crankshaft flange, and the rear end is bearing in by ball bearing 2 in the bearing hole of mission case 7, and first constant mesh gear 3 on first 1 and first 1 make one.
Second 9 front end is bearing in first constant mesh gear 3 inner ring hole by needle bearing 4, the rear end utilizes ball bearing 8 to be bearing on the casing 7 of speed changer, change gear 5 and change gear 6 are fixed on second 9 by spline, promote shift fork by operating handle 29 and carry out shift control.
Travel for realizing that car body is swung to, be provided with short reverse gear shaft 17 in jack shaft 15 1 sides, its two supports is on the housing of speed changer, with reverse gear shaft locking plate 19 lockings, prevent its rotation and move axially, reverse idler gear 18 skies are enclosed within on this axle, constitute the constant mesh gear pair with countershaft reverse gear 14.
Casing 7 is this transmission support bracket, is supporting whole gearing actuator.
Operating mechanism comprises: operating handle 29, shifting block 26, shifting block 27, one, reverse speed fork 24, two, third gear shift fork 23, one, reverse speed shift rod 21, two, third gear declutch shift shaft 22 etc., collection is loaded in the loam cake.During gear shift, promote shift forks by operating handle 29 and carry out gear-change operation, one grade and reverse gear operation are stirred by same shift fork.One grade of speed ratio is 4.737, and the second gear speed ratio is 1.74, and reverse gear ratio is 3.5, and reverse gear ratio is between between one grade and the second gear speed ratio, and speed has been eliminated reverse gear and crossed slow phenomenon greater than first gear speed when making reversing.
One, reverse speed shift rod 21 and and two, the two ends of third gear declutch shift shaft 22 all are supported in the respective aperture of gear shift cover 20, can endwisely slip.All shift forks and shifting block all use flexible lock pin 25 to be fixed on the corresponding declutch shift shaft.One, the upper end of reverse speed fork 24 and two, third gear shift fork 23 all has shifting block.The top of shifting block 26 and shifting block 27 is shaped on groove.When speed changer was in neutral gear, each groove alignd in Transverse plane, and the bulb 28 of operating handle 29 lower ends promptly stretches in these grooves.Can make operating handle 29 around its spherical fulcrum teeter in middle part during gear selecting, thereby make operating handle 29 lower end bulbs 28 aim at the shifting block groove corresponding with selected gear, make operating handle 29 longitudinal oscillations then, drive declutch shift shaft and shift fork and move forward or backward, can realize engage a gear.
Driving mechanism transmission process of the present utility model is:
When hanging neutral gear, change gear 5 and change gear 6 not with jack shaft 15 on gear engagement, so during first 1 rotation, second 9 can not be driven, speed changer is in neutral state.
Desire to put in the first speed, can handle operating handle 29, by one, reverse speed fork 24 moves to left change gear 6, it is engaged with one grade of driving gear 13, power just from first 1 successively through first constant mesh gear 3, jack shaft constant mesh gear 11, jack shaft 15, one grade of driving gear 13, change gear 6, pass to second 9 output at last.
Desire is hung second gear, by two, third gear shift fork 23 moves to right change gear 5, make it to engage with second gear driving gear 12, power just from first 1 successively through first constant mesh gear 3, jack shaft constant mesh gear 11, jack shaft 15, second gear driving gear 12, change gear 5, pass to second 9 output at last.
Desire is hung third gear, by two, third gear shift fork 23 moves to left change gear 5, make it to engage with first constant mesh gear 3, power just from first 1 successively through first constant mesh gear 3, change gear 5, pass to second 9 output at last.
Desire is hung reverse gear, by two, third gear shift fork 24 moves to right change gear 6, engage with reverse idler gear 18, power just from first 1 successively through first constant mesh gear 3, jack shaft constant mesh gear 11, jack shaft 15, countershaft reverse gear 14, reverse idler gear 18, change gear 6, pass to second 9 output at last.Owing to increased a reverse idler gear 18, so second 9 sense of rotation is opposite with first 1, car body just falls back and travels.
Claims (3)
1. special-purpose speed changer of minitype wheeled engineering machinery, comprise driving mechanism, casing (7) and operating mechanism, it is characterized in that, this speed changer has three forward gearss and a backward gear, be provided with 4 axles and 8 gears in the driving mechanism, first (1) front end stretches out casing (7), and the rear end is bearing in the bearing hole of casing (7) by ball bearing (2), and first constant mesh gear (3) on first (1) made one with first (1); Second (9) front end is bearing in first constant mesh gear (3) inner ring hole by needle bearing (4), the rear end utilizes ball bearing (8) to be bearing on the casing (7) of speed changer, and change gear (5) and change gear (6) are fixed on second (9) by spline; Jack shaft (15) two ends are bearing on the casing (7) with ball bearing (10) and ball bearing (16), by spline jack shaft constant mesh gear (11), one grade of driving gear (13), second gear driving gear (12) and countershaft reverse gear (14) are housed on the axle, wherein, jack shaft constant mesh gear (11) constitutes the constant mesh gear pair with first constant mesh gear (3); Reverse gear shaft (17) is arranged on a side of jack shaft (15), and its two supports is on the housing of speed changer, and reverse idler gear (18) sky is enclosed within on this axle, constitutes the constant mesh gear pair with countershaft reverse gear (14); Casing (7) is this transmission support bracket; Operating mechanism comprises: operating handle (29), shifting block (26), shifting block (27),, reverse speed fork (24), two, third gear shift fork (23),, reverse speed shift rod (21), two, third gear declutch shift shaft (22).
2. the special-purpose speed changer of minitype wheeled engineering machinery according to claim 1 is characterized in that, promotes shift fork by operating handle (29) and carries out gear-change operation, and one grade and reverse gear operation are stirred by same shift fork.
3. the special-purpose speed changer of minitype wheeled engineering machinery according to claim 1 is characterized in that one grade of speed ratio is 4.737, and the second gear speed ratio is 1.74, and reverse gear ratio is 3.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200117400U CN201050583Y (en) | 2007-04-19 | 2007-04-19 | Dedicated speed variator for small-sized wheel type engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200117400U CN201050583Y (en) | 2007-04-19 | 2007-04-19 | Dedicated speed variator for small-sized wheel type engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050583Y true CN201050583Y (en) | 2008-04-23 |
Family
ID=39337070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200117400U Expired - Fee Related CN201050583Y (en) | 2007-04-19 | 2007-04-19 | Dedicated speed variator for small-sized wheel type engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050583Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151494A (en) * | 2015-04-28 | 2016-11-23 | 徐工集团工程机械股份有限公司 | The drive system of a kind of engineering machinery and control method thereof |
| CN112360943A (en) * | 2020-10-24 | 2021-02-12 | 重庆铁马变速箱有限公司 | Wide-speed-ratio AMT gearbox configuration |
-
2007
- 2007-04-19 CN CNU2007200117400U patent/CN201050583Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151494A (en) * | 2015-04-28 | 2016-11-23 | 徐工集团工程机械股份有限公司 | The drive system of a kind of engineering machinery and control method thereof |
| CN112360943A (en) * | 2020-10-24 | 2021-02-12 | 重庆铁马变速箱有限公司 | Wide-speed-ratio AMT gearbox configuration |
| CN112360943B (en) * | 2020-10-24 | 2023-01-20 | 重庆铁马变速箱有限公司 | Wide-speed-ratio AMT gearbox configuration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ANSHAN HAIHONG AGRICULTURAL ENGINEERING SCIENCE + Free format text: FORMER OWNER: ANSHAN HAIHONG ENGINEERING MACHINERY CO., LTD. Effective date: 20090605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090605 Address after: Liaoning province Anshan Tanggangzi Agricultural High-tech Industrial Park, zip code: 114048 Patentee after: ANSHAN HAIHONG CONSTRUCTION MACHINERY Co.,Ltd. Address before: Shahe, Liaoning mountain city of Anshan Province in the zip code: 114000 Patentee before: ANSHAN HAIHONG ENGINEERING MAC |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 114048 Anshan city of Liaoning province Tanggangzi Agricultural High-tech Industrial Park Patentee after: ANSHAN JINGWEI HAIHONG AGRICULTURAL MACHINERY TECHNOLOGY Co.,Ltd. Address before: 114048 Anshan city of Liaoning province Tanggangzi Agricultural High-tech Industrial Park Patentee before: Anshan Haihong Machinery Technology Co.,Ltd. Address after: 114048 Anshan city of Liaoning province Tanggangzi Agricultural High-tech Industrial Park Patentee after: Anshan Haihong Machinery Technology Co.,Ltd. Address before: 114048 Anshan city of Liaoning province Tanggangzi Agricultural High-tech Industrial Park Patentee before: ANSHAN HAIHONG CONSTRUCTION MACHINERY Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20140419 |