CN205491675U - Variable speed transmission structure - Google Patents
Variable speed transmission structure Download PDFInfo
- Publication number
- CN205491675U CN205491675U CN201521027042.0U CN201521027042U CN205491675U CN 205491675 U CN205491675 U CN 205491675U CN 201521027042 U CN201521027042 U CN 201521027042U CN 205491675 U CN205491675 U CN 205491675U
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- Prior art keywords
- gear
- main shaft
- countershaft
- master
- duplicate
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Abstract
The utility model discloses a variable speed transmission structure, main shaft and countershaft including parallel arrangement, wherein the main shaft is including setting up first main shaft and the the second spindle on same straight line, the cover is equipped with input gear on the first main shaft, admittedly, it has first master gear to overlap at the second spindle, the cover is equipped with main shaft dual gea, the countershaft includes first countershaft and second layshaft, first countershaft, second layshaft and main shaft three are parallel, the loop has countershaft dual gear on first countershaft, gu the cover has fast block driven gear and keeps off driven gear slowly, loop reverse gear on second layshaft, slip through input gear realizes the just transform of input speed, be equipped with the 2nd shifting fork mechanism on main shaft dual gea, dual gea slides through the 2nd shifting fork mechanism control main shaft, then the slip through reverse gear, the switching that the realization was reversed gear. Structure more than adopting provides the fender position of reversing gear that ging forward of four kinds of friction speeds kept off position and two kinds of friction speeds, is applicable to various farming production actual conditions.
Description
Technical field
This utility model belongs to agricultural machinery technological field, is specifically related to a kind of gear structure.
Background technology
Tiller, with small diesel engine or gasoline engine as power, has lightweight, the features such as volume is little, simple in construction.Tiller is widely used in Plain, mountain area, the nonirrigated farmland on hills, paddy field, orchard etc..Mix corresponding facility to carry out drawing water, generate electricity, spray the operation such as medicine, spray, also can draw towed vehicle and carry out short-distance transport, tiller freely can be exercised in field, user-friendly and deposit, eliminate large-scale farm machinery and cannot be introduced into the worry of mountain area field, be vast farmers consumer substitute cattle plough optimum selection.
Only being joined directly together by ring flange between electromotor and the change speed gear box of tradition tiller, power is directly delivered in change speed gear box by a main shaft, and change speed gear box is respectively integrated with walking case, has main shaft, countershaft, reverse gear shaft, three kinds of axles in change speed gear box.By stirring the duplex spur gear position on main shaft, reverse gear shaft, can realize keeping off soon, keeping off slowly and reverse gear, gear is few, thus the advance of tiller is relative with the speed fallen back single, especially reverse gear only one of which, there is significant limitation in actual farming, it is impossible to meet and produce actual needs.Solve problem above and become the task of top priority.
Utility model content
For solving above technical problem, this utility model provides a kind of novel structure, designs gear structure cleverly.
For achieving the above object, technical solutions of the utility model are as follows:
nullA kind of gear structure，It is characterized by: include main shaft and countershaft，Described main shaft includes arranging the first main shaft (1) on the same line and the second main shaft (2)，The either end of this first main shaft (1) is connected with the either end kink of described second main shaft (2)，Described first main shaft (1) is set with input gear (5)，This input gear (5) can slide axially along described first main shaft (1)，It is installed with the first master gear (6) near one end of described first main shaft (1) described second main shaft (2)，Described second main shaft (2) is set with the second master gear (7a) and the 3rd master gear (7b)，Wherein the second master gear (7a) is positioned between described first master gear (6) and described 3rd master gear (7b)，Fixing connection between described second master gear (7a) and the 3rd master gear (7b)，Form main shaft duplicate gear (7)，This main shaft duplicate gear (7) can slide axially along described second main shaft (2)，Described input gear (5) is provided with the first clutch tooth (13)，Described first master gear (6) is provided with the second clutch tooth (14)；Described countershaft includes the first countershaft (3) and the second countershaft (4), this first countershaft (3), described second countershaft (4) and described main shaft three are parallel to each other, the upper kink of first countershaft (3) has the first pinion (8a) and the second pinion (8b) wherein, fixing connection between this first pinion (8a) and described second pinion (8b), form countershaft duplicate gear (8), described first countershaft (3) is installed with and keeps off driven gear (9) soon and keep off driven gear (10) slowly, described fast gear driven gear (9) is positioned at countershaft duplicate gear (8) and keeps off between driven gear (10) slowly, either end at the first countershaft (3) is provided with the first bevel gear (12), reverse gear (11) is had at the upper kink of described second countershaft (4)；nullDescribed second pinion (8b) is engaged with described first master gear (6)，Described input gear (5) along described first main shaft (1) slide axially time，Make this input gear (5) and described first pinion (8a) engagement，Or make described first clutch tooth (13) and described second clutch tooth (14) engagement，Described main shaft duplicate gear (7) along the second main shaft (2) slide axially time，Make described second master gear (7a) and the engagement of described fast gear driven gear (9)，Or make described 3rd master gear (7b) and the engagement of described slow gear driven gear (10)，When described main shaft duplicate gear (7) is positioned between described fast gear driven gear (9) and described slow gear driven gear (10)，Described reverse gear (11) is slid axially along described second countershaft (4)，Make described reverse gear (11) engage with described 3rd master gear (7b) and described slow gear driven gear (10) simultaneously；Described main shaft duplicate gear (7) is provided with the second shifting fork mechanism (20), this second shifting fork mechanism (20) includes that axle (20b) installed by the second shift fork, the either end installing axle (20b) at this second shift fork is provided with the second shifting fork piece (20a), this second shifting fork piece (20a) stretches between described second master gear (7a) and the 3rd master gear (7b), described main shaft duplicate gear (7) is promoted to slide along the second main shaft (2), installing the upper connection of axle (20b) at described second shift fork has reset rocking bar to install axle (20c), this reset rocking bar installs axle (20c) connection reduction torsion spring drag-line rocking bar.
Use above structure, novel structure, design ingenious, slip by input gear (5), realize the first main shaft (1) the high low speed friction speed transmission to the second main shaft (2), the slip of main shaft duplicate gear (7) is controlled in conjunction with the second shifting fork mechanism (20), then by the slip of reverse gear (11), provide the forward range of four kinds of different output speeds altogether, the gear that reverses gear of two kinds of different output speeds, thus realize the forward range that doubles and the gear that reverses gear, it is applicable to the various farming condition of production and environment, meet and produce actual needs.
As preferably: be provided with inner chamber (15) described first main shaft (1) near one end of described second main shaft (2), described second main shaft (2) stretches into this inner chamber (15) near one end of described first main shaft (1), and the inserting end of this second main shaft (2) and the cavity wall of described inner chamber (15) are connected by the first needle bearing (16).Use above structure, make contact surface be become sliding friction from rolling friction, effectively reduce the rate of wear of part.
As preferably: described countershaft duplicate gear (8) and described first countershaft (3) are connected by the second needle bearing (17).Use above structure, make contact surface be become sliding friction from rolling friction, effectively reduce the rate of wear of part.
As preferably: described input gear (5) and described first main shaft (1) are connected by spline.Use above structure, simple and reliable for structure, it is achieved input gear (5) slides axially along the first main shaft (1).
As preferably: be installed with reverse gear mounting seat (18) on described second countershaft (4), described reverse gear (11) kink is in this reverse gear mounting seat (18).Using above structure, reverse gear (11) is not directly acted on when sliding, and adds the stability of structure, extends service life.
Beneficial effect: use the gear structure of above technical scheme, simple in construction is novel, it is provided that the forward range of four kinds of friction speeds and the gear that reverses gear of two kinds of friction speeds, thus realizes the gear doubled, it is applicable to the various farming condition of production and environment, meets and produce actual needs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is that Fig. 2 is along the profile at C-C.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
nullAs Figure 1-3，A kind of gear structure，Including main shaft and countershaft，Described main shaft includes the first main shaft 1 and the second main shaft 2 arranged on the same line，The either end of this first main shaft 1 is connected with the either end kink of described second main shaft 2，I.e. it is provided with inner chamber 15 at described first main shaft 1 near one end of described second main shaft 2，Described second main shaft 2 stretches into this inner chamber 15 near one end of described first main shaft 1，The inserting end of this second main shaft 2 and the cavity wall of described inner chamber 15 are connected by the first needle bearing 16，Described first main shaft 1 is set with input gear 5，Described input gear 5 and described first main shaft 1 are connected by spline，Make this input gear 5 can slide axially along described first main shaft 1，It is installed with the first master gear 6 near one end of described first main shaft 1 at described second main shaft 2，Described second main shaft 2 is set with the second master gear 7a and the 3rd master gear 7b，Wherein the second master gear 7a is between described first master gear 6 and described 3rd master gear 7b，Fixing connection between described second master gear 7a and the 3rd master gear 7b，Form main shaft duplicate gear 7，This main shaft duplicate gear 7 can slide axially along described second main shaft 2，Described input gear 5 is provided with the first clutch tooth 13，Described first master gear 6 is provided with the second clutch tooth 14；nullDescribed countershaft includes the first countershaft 3 and the second countershaft 4，This first countershaft 3、Described second countershaft 4 and described main shaft three are parallel to each other，On first countershaft 3, kink has the first pinion 8a and the second pinion 8b wherein，Fixing connection between this first pinion 8a and described second pinion 8b，Form countershaft duplicate gear 8，Described countershaft duplicate gear 8 and described first countershaft 3 are connected by the second needle bearing 17，Described first countershaft 3 is installed with fast gear driven gear 9 and slow gear driven gear 10，Described fast gear driven gear 9 is between countershaft duplicate gear 8 and slow gear driven gear 10，Either end at the first countershaft 3 is provided with the first bevel gear 12，On described second countershaft 4, kink has reverse gear 11，I.e. on described second countershaft 4, it is installed with reverse gear mounting seat 18，Described reverse gear 11 kink is in this reverse gear mounting seat 18；Described second pinion 8b engages with described first master gear 6, described input gear 5 along described first main shaft 1 slide axially time, make this input gear 5 and described first pinion 8a engagement, or make described first clutch tooth 13 and described second clutch tooth 14 engage, described main shaft duplicate gear 7 along the second main shaft 2 slide axially time, described second master gear 7a and described fast gear driven gear 9 is made to engage, or make described 3rd master gear 7b and described slow gear driven gear 10 engage, when described main shaft duplicate gear 7 is between described fast gear driven gear 9 and described slow gear driven gear 10, described reverse gear 11 is slid axially along described second countershaft 4, make described reverse gear 11 engage with described 3rd master gear 7b and described slow gear driven gear 10 simultaneously.
As shown in Figure 1, described input gear 5 is provided with the first shifting fork mechanism 19, this first shifting fork mechanism 19 includes that axle 19b installed by the first shift fork, the either end installing axle 19b at this first shift fork is provided with the first shifting fork piece 19a, described input gear 5 is provided with the first fork slot, described first shifting fork piece 19a stretches into this first fork slot, described input gear 5 is promoted to slide along the first main shaft 1, the other end connection installing axle 19b at described first shift fork has the first rocking arm to install axle 19c, and this first rocking arm installs axle 19c connection the first rocking arm；
As shown in Figure 1, described main shaft duplicate gear 7 is provided with the second shifting fork mechanism 20, this second shifting fork mechanism 20 includes that axle 20b installed by the second shift fork, the either end installing axle 20b at this second shift fork is provided with the second shifting fork piece 20a, this second shifting fork piece 20a stretches between described second master gear 7a and the 3rd master gear 7b, described main shaft duplicate gear 7 is promoted to slide along the second main shaft 2, installing to connect on axle 20b at described second shift fork has reset rocking bar to install axle 20c, and this reset rocking bar installs axle 20c connection reduction torsion spring drag-line rocking bar；
As shown in Figure 1, described reverse gear 11 is provided with the 3rd shifting fork mechanism 21, 3rd shifting fork mechanism 21 includes that axle 21b installed by the 3rd shift fork, the either end installing axle 21b at the 3rd shift fork is provided with the 3rd shifting fork piece 21a, described second countershaft 4 is arranged with reverse gear reseting pressuring spring, this reverse gear reseting pressuring spring and described 3rd shifting fork piece 21a lay respectively at described reverse gear 11 both sides, described 3rd shifting fork piece 21a promotes reverse gear 11 to slide to reverse gear reseting pressuring spring direction, described reverse gear reseting pressuring spring reversely promotes reverse gear 11 to reset, the other end installing axle 21b at described 3rd shift fork connects the rocking arm installation axle 21c that reverses gear, this rocking arm that reverses gear is installed axle 21c and is connected the rocking arm 21d that reverses gear.
When low speed keeps off advance slowly, first shifting fork mechanism 19 controls input gear 5 and slides axially, input gear 5 and the first pinion 8a is made to engage, first main shaft 1 drives input gear 5 to rotate, input gear 5 drives countershaft duplicate gear 8 to rotate, countershaft duplicate gear 8 drives the first master gear 6 to rotate, first master gear 6 drives the second main shaft 2 to rotate, second main shaft 2 drives main shaft duplicate gear 7 to rotate, second shifting fork mechanism 20 controls main shaft duplicate gear 7 and slides axially, the 3rd master gear 7b and slow gear driven gear 10 is made to engage, main shaft duplicate gear 7 drives slow gear driven gear 10 to rotate, slow gear driven gear 10 drives the first countershaft 3 to rotate, first countershaft 3 drives the first bevel gear 12 to rotate.
When low speed keeps off advance soon, first shifting fork mechanism 19 controls input gear 5 and slides axially, input gear 5 and the first pinion 8a is made to engage, first main shaft 1 drives input gear 5 to rotate, input gear 5 drives countershaft duplicate gear 8 to rotate, countershaft duplicate gear 8 drives the first master gear 6 to rotate, first master gear 6 drives the second main shaft 2 to rotate, second main shaft 2 drives main shaft duplicate gear 7 to rotate, second shifting fork mechanism 20 controls main shaft duplicate gear 7 and slides axially, the second master gear 7a and fast gear driven gear 9 is made to engage, main shaft duplicate gear 7 drives fast gear driven gear 9 to rotate, fast gear driven gear 9 drives the first countershaft 3 to rotate, first countershaft 3 drives the first bevel gear 12 to rotate.
nullWhen low speed reverses gear，First shifting fork mechanism 19 controls input gear 5 and slides axially，Input gear 5 and the first pinion 8a is made to engage，First main shaft 1 drives input gear 5 to rotate，Input gear 5 drives countershaft duplicate gear 8 to rotate，Countershaft duplicate gear 8 drives the first master gear 6 to rotate，First master gear 6 drives the second main shaft 2 to rotate，Second main shaft 2 drives main shaft duplicate gear 7 to rotate，Second shifting fork mechanism 20 controls main shaft duplicate gear 7 and slides axially，Make main shaft duplicate gear 7 between fast gear driven gear 9 and slow gear driven gear 10，Then the 3rd shifting fork mechanism 21 controls reverse gear mounting seat 18 and slides along the second countershaft 4，The reverse gear 11 making kink in reverse gear mounting seat 18 engages with the 3rd master gear 7b and slow gear driven gear 10 simultaneously，Now the 3rd master gear 7b drives reverse gear 11 to rotate，Reverse gear 11 drives slow gear driven gear 10 to rotate，Slow gear driven gear 10 drives the first countershaft 3 to rotate，First countershaft 3 drives the first bevel gear 12 to rotate.
When the slowest gear advances, first shifting fork mechanism 19 controls input gear 5 and slides axially, input gear 5 is made to separate with the first pinion 8a, first clutch tooth 10 and the second clutch tooth 11 engage, first main shaft 1 drives the second main shaft 2 to rotate, first master gear 6 drives countershaft duplicate gear 8 to dally, second main shaft 2 drives main shaft duplicate gear 7 to rotate, second shifting fork mechanism 20 controls main shaft duplicate gear 7 and slides axially, the 3rd master gear 7b and slow gear driven gear 10 is made to engage, main shaft duplicate gear 7 drives slow gear driven gear 10 to rotate, slow gear driven gear 10 drives the first countershaft 3 to rotate, first countershaft 3 drives the first bevel gear 12 to rotate.
When the fastest gear advances, first shifting fork mechanism 19 controls input gear 5 and slides axially, input gear 5 is made to separate with the first pinion 8a, first clutch tooth 10 and the second clutch tooth 11 engage, first main shaft 1 drives the second main shaft 2 to rotate, first master gear 6 drives countershaft duplicate gear 8 to dally, second main shaft 2 drives main shaft duplicate gear 7 to rotate, second shifting fork mechanism 20 controls main shaft duplicate gear 7 and slides axially, the second master gear 7a and fast gear driven gear 9 is made to engage, main shaft duplicate gear 7 drives fast gear driven gear 9 to rotate, fast gear driven gear 9 drives the first countershaft 3 to rotate, first countershaft 3 drives the first bevel gear 12 to rotate.
nullWhen reversing gear at a high speed，First shifting fork mechanism 19 controls input gear 5 and slides axially，Input gear 5 is made to separate with the first pinion 8a，First clutch tooth 10 and the second clutch tooth 11 engage，First main shaft 1 drives the second main shaft 2 to rotate，First master gear 6 drives countershaft duplicate gear 8 to dally，Second main shaft 2 drives main shaft duplicate gear 7 to rotate，Second shifting fork mechanism 20 controls main shaft duplicate gear 7 and slides axially，Make main shaft duplicate gear 7 between fast gear driven gear 9 and slow gear driven gear 10，Then the 3rd shifting fork mechanism 21 controls reverse gear mounting seat 18 and slides along the second countershaft 4，The reverse gear 11 making kink in reverse gear mounting seat 18 engages with the 3rd master gear 7b and slow gear driven gear 10 simultaneously，Now the 3rd master gear 7b drives reverse gear 11 to rotate，Reverse gear 11 drives slow gear driven gear 10 to rotate，Slow gear driven gear 10 drives the first countershaft 3 to rotate，First countershaft 3 drives the first bevel gear 12 to rotate.
Finally need explanation; foregoing description is only preferred embodiment of the present utility model; those skilled in the art is under enlightenment of the present utility model; on the premise of this utility model objective and claim; represent, within such conversion each falls within protection domain of the present utility model as can making multiple types.
Claims (5)
1. a gear structure, it is characterised in that: include that main shaft and countershaft, described main shaft include arranging
The first main shaft (1) on the same line and the second main shaft (2), the either end of this first main shaft (1) with
The either end kink of described second main shaft (2) connects, and is set with input tooth on described first main shaft (1)
Wheel (5), this input gear (5) can slide axially along described first main shaft (1), at described second main shaft
(2) one end near described first main shaft (1) is installed with the first master gear (6), at described second main shaft
(2) the second master gear (7a) and the 3rd master gear (7b), wherein the second master gear (7a) it are set with on
It is positioned between described first master gear (6) and described 3rd master gear (7b), described second master gear (7a)
With the 3rd fixing between master gear (7b) connect, form main shaft duplicate gear (7), this main shaft duplicate gear
(7) can slide axially along described second main shaft (2), described input gear (5) is provided with the first clutch
Tooth (13), is provided with the second clutch tooth (14) on described first master gear (6)；
Described countershaft includes the first countershaft (3) and the second countershaft (4), this first countershaft (3), described second
Countershaft (4) and described main shaft three are parallel to each other, and the upper kink of the first countershaft (3) has the first secondary tooth wherein
Wheel (8a) and the second pinion (8b), this first pinion (8a) and described second pinion (8b) it
Between fixing connect, form countershaft duplicate gear (8), described first countershaft (3) be installed with fast gear driven
Gear (9) and keep off driven gear (10) slowly, described fast gear driven gear (9) is positioned at countershaft duplicate gear (8)
Slowly keeping off between driven gear (10), the either end at the first countershaft (3) is provided with the first bevel gear (12),
Reverse gear (11) is had at the upper kink of described second countershaft (4)；
Described second pinion (8b) is engaged with described first master gear (6), described input gear (5)
Along described first main shaft (1) slide axially time, make this input gear (5) and described first pinion (8a)
Engagement, or make described first clutch tooth (13) and described second clutch tooth (14) engagement, described main shaft is double
Connection gear (7) along the second main shaft (2) slide axially time, make described second master gear (7a) and described soon
Gear driven gear (9) engagement, or make described 3rd master gear (7b) and described slow gear driven gear (10)
Engagement, described main shaft duplicate gear (7) is positioned at described fast gear driven gear (9) and described slow gear driven tooth
Time between wheel (10), described reverse gear (11) is slid axially along described second countershaft (4), makes institute
State reverse gear (11) to nibble with described 3rd master gear (7b) and described slow gear driven gear (10) simultaneously
Close；
Described main shaft duplicate gear (7) is provided with the second shifting fork mechanism (20), this second shifting fork mechanism (20)
Installing axle (20b) including the second shift fork, the either end installing axle (20b) at this second shift fork is provided with second
Shifting fork piece (20a), this second shifting fork piece (20a) stretches into described second master gear (7a) and the 3rd master gear
(7b), between, described main shaft duplicate gear (7) is promoted to slide along the second main shaft (2), described second
The upper connection of axle (20b) installed by shift fork has reset rocking bar to install axle (20c), and this reset rocking bar installs axle (20c)
Connect and have reduction torsion spring drag-line rocking bar.
Gear structure the most according to claim 1, it is characterised in that: described first main shaft (1)
Being provided with inner chamber (15) near one end of described second main shaft (2), described second main shaft (2) is near described the
This inner chamber (15) is stretched in one end of one main shaft (1), the inserting end of this second main shaft (2) and described inner chamber (15)
Cavity wall by the first needle bearing (16) connect.
Gear structure the most according to claim 1 and 2, it is characterised in that: described countershaft duplex-gear
Wheel (8) and described first countershaft (3) are connected by the second needle bearing (17).
Gear structure the most according to claim 3, it is characterised in that: described input gear (5)
Connected by spline with described first main shaft (1).
5. according to the gear structure described in claim 1 or 2 or 4, it is characterised in that: described second
Being installed with reverse gear mounting seat (18) on countershaft (4), described reverse gear (11) kink reverses gear at this
On gear installation base (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521027042.0U CN205491675U (en) | 2015-12-12 | 2015-12-12 | Variable speed transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521027042.0U CN205491675U (en) | 2015-12-12 | 2015-12-12 | Variable speed transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205491675U true CN205491675U (en) | 2016-08-24 |
Family
ID=56721149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521027042.0U Expired - Fee Related CN205491675U (en) | 2015-12-12 | 2015-12-12 | Variable speed transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205491675U (en) |
-
2015
- 2015-12-12 CN CN201521027042.0U patent/CN205491675U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20161212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |