CN102080708B - Transmission case of micro farming machine - Google Patents
Transmission case of micro farming machine Download PDFInfo
- Publication number
- CN102080708B CN102080708B CN2011100389016A CN201110038901A CN102080708B CN 102080708 B CN102080708 B CN 102080708B CN 2011100389016 A CN2011100389016 A CN 2011100389016A CN 201110038901 A CN201110038901 A CN 201110038901A CN 102080708 B CN102080708 B CN 102080708B
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- gear
- output shaft
- bearing
- clutch
- chamber
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Abstract
The invention discloses a transmission case of a micro farming machine. The cavity of a case body is divided into a front cavity and a rear cavity, wherein the front cavity is internally provided with a clutch, the clutch is connected with the front end of a spindle, the middle part of the spindle is supported by a midfellow by virtue of a bearing, the rear end of the spindle penetrates through the rear cavity and is supported on the rear end wall of the case body by virtue of a bearing; the rear cavity is internally provided with a gear transmission mechanism, the spindle is connected with an output shaft by virtue of the gear transmission mechanism, the rear end of the output shaft is supported on the rear end wall of the case body by virtue of a bearing, the front part of the output shaft is supported by the midfellow by virtue of a bearing, the front end of the output shaft is provided with a first bevel gear, the first bevel gear is arranged in the front cavity, and the first bevel gear is meshed with a second bevel gear at the upper end of a vertical shaft. In the invention, the vertical shaft outputting power downward shifts forward, the center of gravity of the complete machine shifts backward, the weight of the complete machine is uniform front and back, the stationarity is good, the operation is easier, the transmission case has the characteristics of compact structure, small volume and the like, and is convenient to install and maintain; and the production cost can be greatly reduced.
Description
Technical field
The invention belongs to miniature cultivator technical field, specifically, relate in particular to the transmission case that is used on the microtilling machine.
Background technique
At present; The transmission case of miniature cultivator generally is installed in the rear of motor; The main shaft of this transmission case is connected with the output shaft of motor through clutch, and the output shaft of transmission case is connected with the upper end of vertical shaft through gear, in the lower end of vertical shaft tillage implements or road wheel is installed.Be provided with the multiple sets of teeth wheel in the said transmission case, through changing gait of march or the direct of travel that the gear meshing object can switch microtilling machine.The deficiency that existing microtilling machine transmission case exists is:
1) vertical shaft is as the fulcrum of microtilling machine complete machine, and after the position was comparatively leaned on, laid particular stress on the front of complete machine like this, must firmly push down handrail during operation, not only operation effort, and be easy to generate fatigue.
2) clutch is independent of outside the transmission case, and is arranged in the independent safety enclosure, installs and keep in repair all very difficulty, can increase the cost of complete machine.
What 3) clutch adopted is centrifugal structure, and this centrifugal clutch is prone to skid when rotating speed is low, causes the box hat temperature to raise and produces selflubricating, can reduce frictional force significantly, makes transmission failure, and reliability is relatively poor.
4) bevel gear on microtilling machine output shaft and its axle body is a split-type structural, and assembly precision and working stability are all relatively poor.
5) the power system volume formed of transmission case and motor is big and heavy, and not only dismounting is loaded down with trivial details, the assembling difficulty, and has greatly increased the cost of production of complete machine.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of microtilling machine transmission case, to improve the stationarity of microtilling machine complete machine, makes operation lighter.
Technological scheme of the present invention is following: a kind of microtilling machine transmission case; Comprise casing (1), clutch (2), main shaft (3), output shaft (4), first bevel gear (5), second bevel gear (6), vertical shaft (7) and gear drive; Its key is: the inner chamber of said casing (1) is separated into front chamber (1b) and rear chamber (1c) by midfeather (1a); Wherein the front end of front chamber (1b) is uncovered, and this is uncovered to be sealed by end cap (8), and clutch (2) is set in said front chamber (1b); This clutch (2) is connected with the front end of main shaft (3); The middle part of main shaft (3) is through bearing and midfeather (1a) supporting, and rear chamber (1c) is passed in the rear end of main shaft (3), and is bearing on the aft bulkhead of casing (1) through bearing; The upper end of said rear chamber (1c) is uncovered; This is uncovered to be sealed by top cover (9); Mounting teeth wheel drive mechanism in said rear chamber (1c); Said main shaft (3) is connected with output shaft (4) through gear drive, and the rear end of output shaft (4) is through being bearing in through bearing on the aft bulkhead of casing (1), and the front portion of output shaft (4) is through bearing and midfeather (1a) supporting; Front end at said output shaft (4) is provided with first bevel gear (5); This first bevel gear (5) is positioned at front chamber (1b), and second bevel gear (6) of first bevel gear (5) and vertical shaft (7) upper end is meshed, and the bottom surface of casing (1) is stretched out in the lower end of said vertical shaft (7).
The present invention is separated into former and later two chambers with the inner chamber of casing, arranges clutch, first bevel gear and second bevel gear in the front chamber, arranges gear drive in the rear chamber.Along with the reach of first, second bevel gear position that cooperatively interacts, the vertical shaft reach as the complete machine fulcrum moves after the center of gravity of complete machine like this; Evenly, stationarity is good, needn't firmly push down handrail again during operation before and after the weight of complete machine; Operate easilyer, be difficult for to produce tired.Simultaneously, running gears such as clutch, gear drive are placed in the same casing, whole transmission case compact structure, advantages of small volume can greatly reduce production costs.The front end of casing front chamber is uncovered to be sealed by end cap, and the upper end of rear chamber is uncovered is sealed by top cover, and the parts of dismounting front/back cavity chamber interior are very convenient like this, helps assembling fast and maintenance.
In order to make operation simpler, clutch is sensitiveer, reliable, and said clutch (2) is a plate clutch, and the driven member of this clutch (2) is installed in the front end of main shaft (3).
Offer two oilholes (1d) side by side in the lower end of said midfeather (1a); Said front chamber (1b) is communicated with rear chamber (1c) through oilhole (1d); The machine oil of forward and backward like this chamber can exchange; Oil temperature during transmission case work is low, and can observe oil mass easily through the oil hole of offering on the top cover.
Said gear drive is made up of the small gear that reverses gear (10), change retaining duplicate gear (11), countershaft (12), second gear (13), first gear (14), driving pinion (15), driven gear (16) and the duplicate gear that reverses gear (17); Small gear (10) and become retaining duplicate gear (11) and all be sleeved on the main shaft (3) wherein reverses gear; And can be along main shaft (3) slippage; The main tooth of said change retaining duplicate gear (11) can mesh with the second gear (13) on the countershaft (12); The secondary tooth that becomes retaining duplicate gear (11) can mesh with the first gear (14) on the countershaft (12); On countershaft (12), be provided with driving pinion (15); This driving pinion (15) often meshes with the driven gear (16) that output shaft (4) is gone up suit; At the overhead duplicate gear (17) that reverses gear that overlaps of said output shaft (4), the main tooth of this duplicate gear that reverses gear (17) can mesh with the small gear that reverses gear (10), the normal engagement of the secondary tooth of the duplicate gear that reverses gear (17) and first gear (14).More than simple and compact for structure, be easy to assembling, and transmission case possesses height two forward gears and the retaining that falls back, so that the operator selects according to actual conditions.
In order to improve machining accuracy and working stability, said output shaft (4) and first bevel gear (5) are integral structure.
The invention has the beneficial effects as follows:
1) vertical shaft of outputting power reach downwards moves after the center of gravity of complete machine, and evenly, stationarity is good, and is lighter during operation, laborsaving before and after the weight of complete machine.
2) running gear such as plate clutch and gear drive is placed in the same casing; Not only operation is simpler; Clutch is sensitiveer, reliable, and whole transmission case compact structure, advantages of small volume, installation and maintenance are all very convenient, can greatly reduce production costs.
3) bevel gear on microtilling machine output shaft and its axle body is a monolithic construction, and assembly precision and working stability are all secure.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of casing among the present invention.
Fig. 3 is the be connected schematic representation of the present invention with motor.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Like Fig. 1, Fig. 2, shown in Figure 3; The present invention by casing 1, clutch 2, main shaft 3, output shaft 4, first bevel gear 5, second bevel gear 6, vertical shaft 7, end cap 8, top cover 9, the small gear 10 that reverses gear, become parts such as retaining duplicate gear 11, countershaft 12, second gear 13, first gear 14, driving pinion 15, driven gear 16 and the duplicate gear 17 that reverses gear and constitute; Wherein the inner chamber of casing 1 is separated into 1b of front chamber and the 1c of rear chamber by midfeather 1a; Lower end at midfeather 1a offers oilhole 1d side by side, and the said 1b of front chamber is communicated with the 1c of rear chamber through oilhole 1d.The number of oilhole 1d and shape are confirmed according to actual needs, are preferably two in the present embodiment.
Can know that from Fig. 1, Fig. 3 the front end of the 1b of casing front chamber is uncovered, this is uncovered to be sealed by end cap 8, and end cap 8 is connected with casing 1 and motor 18 through many screws, makes casing 1 be fixed on the rear side of motor 18.Clutch 2 is set in the 1b of front chamber, and this clutch 2 is a plate clutch, and the output shaft of motor 18 stretches in the 1b of front chamber, and is connected with the active body of clutch 2, and the driven member of clutch 2 is installed in the front end of main shaft 3.The structure of said plate clutch and control mode are identical with existing technology, do not do at this and give unnecessary details.
As shown in Figure 3, the middle part of main shaft 3 is through bearing and midfeather 1a supporting, and the 1c of rear chamber is passed in the rear end of main shaft 3, and is bearing on the aft bulkhead of casing 1 through bearing.The upper end of the said 1c of rear chamber is uncovered, and this is uncovered to be sealed by top cover 9, and top cover 9 fixes through many screws and casing 1.Be positioned at main shaft 3 be set with successively from front to back on the axle body of the 1c of rear chamber reverse gear small gear 10 with become retaining duplicate gear 11; Small gear 10 and become retaining duplicate gear 11 and all be connected with main shaft 3 through spline reverses gear; And the small gear 10 that reverses gear respectively is equipped with a shift fork with change retaining duplicate gear 11; Under the stirring of corresponding shift fork, the small gear 10 that reverses gear can be along main shaft 3 slippages with change retaining duplicate gear 11.The main tooth of said change retaining duplicate gear 11 can mesh with the second gear 13 of solid cover on the countershaft 12, and the secondary tooth that becomes retaining duplicate gear 11 can mesh with the first gear 14 of solid cover on the countershaft 12.The front end of countershaft 12 is through bearing and midfeather 1a supporting, and the rear end of countershaft 12 is bearing on the aft bulkhead of casing 1 through bearing.Be formed with driving pinion 15 at the rear portion of countershaft 12, the driven gear 16 of solid cover often meshes on this driving pinion 15 and the output shaft 4.The front portion of output shaft 4 is through bearing and midfeather 1a supporting, and the rear end of output shaft 4 is through the aft bulkhead supporting of bearing and casing 1.The duplicate gear 17 that reverses gear is overlapped in the axle body sky that is positioned at the 1c of rear chamber at said output shaft 4, and the main tooth of this duplicate gear 17 that reverses gear can mesh with the small gear 10 that reverses gear, and the secondary tooth of the duplicate gear 17 that reverses gear and first gear 14 often mesh.
Like Fig. 1, shown in Figure 3, at the front end of output shaft 4 first bevel gear 5 is set, this first bevel gear 5 is positioned at the 1b of front chamber, and output shaft 4 and first bevel gear 5 are integral structure.Said first bevel gear 5 is meshed with second bevel gear 6 of vertical shaft 7 upper ends, and the top of vertical shaft 7 is through the diapire supporting of bearing and the 1b of front chamber, and the bottom surface of casing 1 is stretched out in the lower end of vertical shaft 7, and is connected with tillage implements or road wheel.
The present invention has two forward gears and one and reverses gear; The main tooth of small gear 10 with the duplicate gear 17 that reverses gear separates when reversing gear; And the main tooth that becomes retaining duplicate gear 11 is during with second gear 13 engagements, and becoming the secondary tooth that keeps off duplicate gear 11 separates with first gear 14, and transmission case is to advance at utmost speed retaining work; Power transmission line is: main shaft 3 → change retaining duplicate gear 11 → second gear 13 → driving pinion 15 → driven gear 16 → output shaft 4 → vertical shaft 7, duplicate gear 17 idle running of reversing gear.
The main tooth of small gear 10 with the duplicate gear 17 that reverses gear separates when reversing gear; And the secondary tooth that becomes retaining duplicate gear 11 is when meshing with first gear 14; The main tooth that becomes retaining duplicate gear 11 separates with second gear 13; Transmission case is with the work of low-speed forward retaining, and power transmission line is: main shaft 3 → change retaining duplicate gear 11 → first gear 14 → driving pinion 15 → driven gear 16 → output shaft 4 → vertical shaft 7, duplicate gear 17 idle running of reversing gear.
When the main tooth engagement of small gear 10 of reversing gear with the duplicate gear 17 that reverses gear; And the secondary tooth that becomes retaining duplicate gear 11 separates with first gear 14; When the main tooth of change retaining duplicate gear 11 separates with second gear 13; Transmission case is with the retaining work that falls back, and power transmission line is: the main shaft 3 → small gear 10 that reverses gear → duplicate gear 17 → first gear 14 → driving pinion 15 → driven gear 16 → output shaft 4 → vertical shaft 7 reverses gear.
When the main tooth of small gear 10 with the duplicate gear 17 that reverses gear that reverse gear separates, become the secondary tooth that keeps off duplicate gear 11 and separate with first gear 14, when the main tooth of change retaining duplicate gear 11 separated with second gear 13, transmission case was in the neutral state.
Claims (5)
1. microtilling machine transmission case; Comprise casing (1), clutch (2), main shaft (3), output shaft (4), first bevel gear (5), second bevel gear (6), vertical shaft (7) and gear drive; It is characterized in that: the inner chamber of said casing (1) is separated into front chamber (1b) and rear chamber (1c) by midfeather (1a); Wherein the front end of front chamber (1b) is uncovered, and this is uncovered to be sealed by end cap (8), and clutch (2) is set in said front chamber (1b); This clutch (2) is connected with the front end of main shaft (3); The middle part of main shaft (3) is through bearing and midfeather (1a) supporting, and rear chamber (1c) is passed in the rear end of main shaft (3), and is bearing on the aft bulkhead of casing (1) through bearing; The upper end of said rear chamber (1c) is uncovered; This is uncovered to be sealed by top cover (9); Mounting teeth wheel drive mechanism in said rear chamber (1c); Said main shaft (3) is connected with output shaft (4) through gear drive, and the rear end of output shaft (4) is through being bearing in through bearing on the aft bulkhead of casing (1), and the front portion of output shaft (4) is through bearing and midfeather (1a) supporting; Front end at said output shaft (4) is provided with first bevel gear (5); This first bevel gear (5) is positioned at front chamber (1b), and second bevel gear (6) of first bevel gear (5) and vertical shaft (7) upper end is meshed, and the bottom surface of casing (1) is stretched out in the lower end of said vertical shaft (7).
2. microtilling machine transmission case according to claim 1 is characterized in that: said clutch (2) is a plate clutch, and the driven member of this clutch (2) is installed in the front end of main shaft (3).
3. microtilling machine transmission case according to claim 1 is characterized in that: offer two oilholes (1d) side by side in the lower end of said midfeather (1a), said front chamber (1b) is communicated with rear chamber (1c) through oilhole (1d).
4. microtilling machine transmission case according to claim 1; It is characterized in that: said gear drive is made up of the small gear that reverses gear (10), change retaining duplicate gear (11), countershaft (12), second gear (13), first gear (14), driving pinion (15), driven gear (16) and the duplicate gear that reverses gear (17); Small gear (10) and become retaining duplicate gear (11) and all be sleeved on the main shaft (3) wherein reverses gear; And can be along main shaft (3) slippage; The main tooth of said change retaining duplicate gear (11) can mesh with the second gear (13) on the countershaft (12); The secondary tooth that becomes retaining duplicate gear (11) can mesh with the first gear (14) on the countershaft (12); On countershaft (12), be provided with driving pinion (15), this driving pinion (15) and output shaft (4) are gone up the normal engagement of driven gear (16) of suit, at the overhead duplicate gear (17) that reverses gear that overlaps of said output shaft (4); The main tooth of this duplicate gear that reverses gear (17) can mesh with the small gear that reverses gear (10), the normal engagement of the secondary tooth of the duplicate gear that reverses gear (17) and first gear (14).
5. according to claim 1 or 4 described microtilling machine transmission cases, it is characterized in that: said output shaft (4) and first bevel gear (5) are integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100389016A CN102080708B (en) | 2011-02-16 | 2011-02-16 | Transmission case of micro farming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100389016A CN102080708B (en) | 2011-02-16 | 2011-02-16 | Transmission case of micro farming machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102080708A CN102080708A (en) | 2011-06-01 |
| CN102080708B true CN102080708B (en) | 2012-12-26 |
Family
ID=44086841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100389016A Expired - Fee Related CN102080708B (en) | 2011-02-16 | 2011-02-16 | Transmission case of micro farming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102080708B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333111A (en) * | 2015-12-15 | 2016-02-17 | 威马农业机械有限公司 | Penetrating out type gear shift and speed regulation output system of mini tiller |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883715B (en) * | 2013-11-18 | 2017-06-09 | 湖南创牛农业机械有限公司 | A kind of mini-tiller transmission case |
| CN104653721B (en) * | 2013-11-21 | 2018-02-16 | 李斯端 | A kind of variable transmission mechanism of micro-tillage machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB794415A (en) * | 1953-08-28 | 1958-05-07 | Eimco Corp | Improvements in or relating to drive transmissions for material-handling machines |
| NL7102999A (en) * | 1970-03-05 | 1971-09-07 | ||
| SE9804043L (en) * | 1998-11-25 | 2000-05-26 | Saab Automobile | Vehicle gearbox with six forward gears |
| US6427550B1 (en) * | 2001-01-12 | 2002-08-06 | New Venture Gear, Inc. | Twin clutch automated transaxle |
| CN201953919U (en) * | 2011-02-16 | 2011-08-31 | 陈万荣 | Transmission box for tiller |
-
2011
- 2011-02-16 CN CN2011100389016A patent/CN102080708B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB794415A (en) * | 1953-08-28 | 1958-05-07 | Eimco Corp | Improvements in or relating to drive transmissions for material-handling machines |
| NL7102999A (en) * | 1970-03-05 | 1971-09-07 | ||
| SE9804043L (en) * | 1998-11-25 | 2000-05-26 | Saab Automobile | Vehicle gearbox with six forward gears |
| US6427550B1 (en) * | 2001-01-12 | 2002-08-06 | New Venture Gear, Inc. | Twin clutch automated transaxle |
| CN201953919U (en) * | 2011-02-16 | 2011-08-31 | 陈万荣 | Transmission box for tiller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333111A (en) * | 2015-12-15 | 2016-02-17 | 威马农业机械有限公司 | Penetrating out type gear shift and speed regulation output system of mini tiller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102080708A (en) | 2011-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110601 Assignee: Chongqing Qi Jun limited industrial company Assignor: Chen Wanrong Contract record no.: 2013500000062 Denomination of invention: Driving box for mini-tiller Granted publication date: 20121226 License type: Exclusive License Record date: 20130815 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140216 |