CN201736804U - Driving device of 8 plus 8 shuttle gear-shifting direct-coupled small four-wheel tractor - Google Patents
Driving device of 8 plus 8 shuttle gear-shifting direct-coupled small four-wheel tractor Download PDFInfo
- Publication number
- CN201736804U CN201736804U CN201020216172XU CN201020216172U CN201736804U CN 201736804 U CN201736804 U CN 201736804U CN 201020216172X U CN201020216172X U CN 201020216172XU CN 201020216172 U CN201020216172 U CN 201020216172U CN 201736804 U CN201736804 U CN 201736804U
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- shaft
- gear box
- driving
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Abstract
The utility model discloses a driving device of an 8 plus 8 shuttle gear-shifting direct-coupled small four-wheel tractor. The device comprises a horizontal type gearbox, a clutch housing assembly and a rear power output device, wherein the horizontal type gearbox comprises a gearbox body and a first gear driving device arranged inside the gearbox body and used for driving the half axle of the tractor to rotate; the clutch housing assembly comprises a clutch housing body and a second gear driving device arranged inside the clutch housing; and the rear power output device comprises a longitudinal driving shaft and an intermediate driving shaft connected with the longitudinal driving shaft through a meshed sleeve; a rear power output driving gear is fixedly arranged on the intermediate driving shaft; a rear power output shaft is also arranged on the gearbox body; a rear power output driven gear which is meshed with the rear power output driving gear is fixedly arranged on the rear power output shaft; and a rear power output control mechanism is arranged at the power output end of the rear power output shaft. The driving device has the advantages of compact structure, reasonable work gear layout and good overall performance.
Description
Technical field
The utility model relates to trac. driving device technical field, relates in particular to a kind of associated mode small four-wheel tractor driving device that is suitable for the 8+8 shuttle-type gearshift of the trac. below 25 horsepowers.
Background technology
At present, the associated mode four-wheeled tractor more than 25 horsepowers that China produces adopts the longitudinal change speed gear box mostly, no side takeoff output, and price is higher relatively; Associated mode small four-wheel tractor below 25 horsepowers is because of reasonable price, and particularly the multiplex (MUX) makes the gear type, and the user is outstanding day by day to its demand.Existing direct connection small-size 4-wheel transmission is again because of unreasonable structure, poor performance, and the gear and reverse gear on the low sidely of particularly working can not satisfy the performance-oriented demand of user.
The utility model content
Technical problem to be solved in the utility model provides a kind of compact conformation, can demonstrate fully the multiplex (MUX) again does good being suitable for the trac. below 25 horsepowers and can making full use of the small four-wheel tractor change speed gear box manufacturing line of prior art of gear, performance, can guarantee the inheritance of technology, can save the associated mode small four-wheel tractor driving device of the 8+8 shuttle-type gearshift of resource by actv. again.
For solving the problems of the technologies described above, the technical solution of the utility model is: the associated mode small four-wheel tractor driving device of 8+8 shuttle-type gearshift comprises:
The pressure-bearing type change speed gear box, comprise gear box and be arranged at interior being used to of described gear box driving first gear system that shaft of tractor rotates, described first gear system comprises vertical hollow shaft component and bevel-gear pair and at least two horizontal tween drive shafts of change speed gear box and at least two pairs of gear pairs that are arranged in the described gear box;
Clutch housing assembly comprises clutch-bell cover and vertically is arranged at interior second gear system that is used for the transmission of power of driving engine is given described pressure-bearing type change speed gear box of described clutch-bell cover;
Described gear box is captiveed joint with clutch-bell cover;
Back power take-off implement, comprise the longitudinal drive shaft that vertically is arranged in described gear box and the clutch-bell cover, by shift sleeve and described longitudinal drive shaft bonded assembly tween drive spindle, be installed with back takeoff output driving gear on the described tween drive spindle, on the described gear box rear power output shaft is installed also, be installed with on the described rear power output shaft with described back takeoff output driving gear ingear after the takeoff output driven gear, the clutch end of described rear power output shaft is provided with back takeoff output steering unit.
As optimized technical scheme, described first gear system also comprises:
Diff, described diff is arranged in the described gear box, and is positioned at the driven end of first gear system, is used for driving two semiaxis that tractor wheels is rotated with giving through the transmission of power after the speed change.
As to improvement of the technical scheme, described second gear system comprises:
Clutch housing assembly I axle, described clutch housing assembly I axle is connected with driving engine by power-transfer clutch, and power input driving gear is installed on the described clutch housing assembly I axle;
Shifting slide gear, described shifting slide gear is installed in the front end of hollow shaft component, controls the slip locations of described shifting slide gear by shuttle-type gearshift, shift fork, locking steel ball;
Clutch housing assembly II axle is equipped with intermediate gear and dual gear on the described clutch housing assembly II axle, described intermediate gear and the power input driving gear engagement that is installed on the described clutch housing assembly I axle; The big gear wheel of described dual gear meshes with the big gear wheel of the described shifting slide gear that is installed in hollow shaft component front end;
Idler shaft is equipped with idle pulley on the described idler shaft; Described idle pulley and the pinion that is installed in the dual gear on the described clutch housing assembly II axle.
As to improvement of the technical scheme, described back power take-off implement comprises:
Vertically be arranged on the longitudinal drive shaft in described gear box and the clutch-bell cover, power input driving gear on the front end of described longitudinal drive shaft passes the hollow shaft component and is installed in described clutch housing assembly I axle is connected by invoice serration, and the rear end of described longitudinal drive shaft is connected with tween drive spindle by the slip engagement cover;
Tween drive spindle, the front end of described tween drive spindle is equipped with shift sleeve, is connected with the longitudinal drive shaft rear end by the slip engagement cover, and the rear end is equipped with back takeoff output driving gear;
Rear power output shaft, described rear power output shaft is installed in the rear portion of described gear box, the end that described rear power output shaft is positioned at described gear box is equipped with back takeoff output driven gear, described back takeoff output driven gear and the takeoff output driving gear engagement of described back;
Back takeoff output steering unit is used to control described shift sleeve and engages with the rear end of described longitudinal drive shaft or separate.
As to improvement of the technical scheme, the left side of described change speed gear box is provided with side takeoff output port, and described gear box is stretched out in the left side of change speed gear box first bevel gear shaft, forms described side takeoff output port.
Owing to adopted technique scheme, the associated mode small four-wheel tractor driving device of 8+8 shuttle-type gearshift, comprise: the pressure-bearing type change speed gear box, comprise gear box and be arranged at interior being used to of described gear box driving first gear system that shaft of tractor rotates, described first gear system comprises vertical hollow shaft component and bevel-gear pair and at least two horizontal tween drive shafts of change speed gear box and at least two pairs of gear pairs that are arranged in the described gear box; Clutch housing assembly comprises clutch-bell cover and vertically is arranged at interior second gear system that is used for the transmission of power of driving engine is given described pressure-bearing type change speed gear box of described clutch-bell cover; Described gear box is captiveed joint with clutch-bell cover; Back power take-off implement, comprise the longitudinal drive shaft that vertically is arranged in described gear box and the clutch-bell cover, by shift sleeve and described longitudinal drive shaft bonded assembly tween drive spindle, be installed with back takeoff output driving gear on the described tween drive spindle, on the described gear box rear power output shaft is installed also, be installed with on the described rear power output shaft with described back takeoff output driving gear ingear after the takeoff output driven gear, the clutch end of described rear power output shaft is provided with back takeoff output steering unit; Whole transmission device compact conformation of the present utility model, realize forward gear and retreated the perfect unity of retaining, be convenient to user's choose reasonable; The utility model is the further improvement of making on the basis of existing small four-wheel tractor change speed gear box, and existing small four-wheel tractor change speed gear box machining production line can be fully used, and the resource that avoids waste has guaranteed good technology inheritance again effectively.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 be among Fig. 1 A-A to cutaway view;
Fig. 4 be among Fig. 1 C-C to cutaway view;
Fig. 5 be among Fig. 3 D-D to cutaway view;
Among the figure: the 1-clutch-bell cover; 2-clutch housing assembly I axle; 3-clutch housing assembly II axle; The 4-intermediate gear; The 5-dual gear; The 6-circular nut; The 7-rear power output shaft; 8-takeoff output shaft-cup; Takeoff output driven gear behind the 9-; The 10-tween drive spindle; Takeoff output driving gear behind the 11-; The 12-shift sleeve; The 13-longitudinal drive shaft; The 14-shifting slide gear; 15-locks steel ball; 16-shuttle-type gearshift; The 17-shift fork; The 18-idle pulley; 19-power input driving gear; 20-change speed gear box II axle; 21-IV keeps off driving gear; 22-II keeps off driving gear; 23-change speed gear box III axle; 24-I keeps off driving gear; 25-III keeps off driving gear; 26-change speed gear box IV axle; 27-I, III keep off shifting slide gear; 28-change speed gear box V axle; The 29-diff; The 30-gear box; 31-deceleration big gear wheel; 32-II, IV keep off shifting slide gear; The secondary speed change shifting slide gear of 33-; The secondary speed change high gear of 34-driving gear; The secondary speed change low gear of 35-driving gear; The 36-drive bevel gear; 37-side power take-off cover; The 38-bearing cap shim; 41-constant-mesh driving gear; 42-change speed gear box first bevel gear shaft; 43-hollow shaft component; Takeoff output steering unit behind the 44-; The 45-idler shaft.
The specific embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
For convenience of explanation, the direction that will be parallel to the trac. direct of travel is defined as vertically, will be defined as laterally perpendicular to the direction of trac. direct of travel.
Extremely shown in Figure 5 as Fig. 1, the associated mode small four-wheel tractor driving device of 8+8 shuttle-type gearshift, comprise the pressure-bearing type change speed gear box, described pressure-bearing type change speed gear box comprises gear box 30 and is horizontally set at first gear system that described gear box 30 interior being used to drive the shaft of tractor rotation that described first gear system comprises vertical hollow shaft component 43 and bevel-gear pair and at least two horizontal tween drive shafts of change speed gear box and at least two pairs of gear pairs that are horizontally set in the described gear box 30; Clutch housing assembly, described clutch housing assembly comprise clutch-bell cover 1 and vertically are arranged at second gear system that is used for the transmission of power of driving engine is given described pressure-bearing type change speed gear box in the described clutch-bell cover 1; Described gear box 30 is bolted to connection together with clutch-bell cover 1.Because the front end of described pressure-bearing type change speed gear box is fixedly connected with clutch housing assembly, the large and small gear that described clutch housing assembly is stirred shifting slide gear 14 through shuttle-type gearshift 16 respectively with the big gear wheel and 18 engagements of the idle pulley on the idler shaft 45 of dual gear 5, obtain positive and negative two kinds of rotating speeds.
Described first gear system also comprises diff 29, described diff 29 is arranged in the described gear box 30, and be positioned at the driven end of first gear system, be used for giving driving two semiaxis that tractor wheels is rotated through the transmission of power after the speed change.
Described second gear system comprises clutch housing assembly I axle 2, shifting slide gear 14, clutch housing assembly II axle 3 and idler shaft 45.Described clutch housing assembly I axle 2 is connected with driving engine by power-transfer clutch, and key is connected with power input driving gear 19 on this clutch housing assembly I axle 2; The front end key of described clutch housing assembly II axle 3 is connected with an intermediate gear 4 and a duplex gear 5, described intermediate gear 4 and power input driving gear 19 engagements that are installed on the described clutch housing assembly I axle 2, the big gear wheel of described dual gear 5 meshes with the big gear wheel of the described shifting slide gear 14 that is installed in hollow shaft component 43 front ends, and lock with circular nut 6 and stop washer the rear end of described clutch housing assembly II axle 3; Described shifting slide gear 14 is installed in the front end of hollow shaft component 43, by the slip locations of shuttle-type gearshift 16, shift fork 17, the described shifting slide gear 14 of locking steel ball 15 controls; On the described idler shaft 45 idle pulley 18 is installed, described idle pulley 18 and the pinion that is installed in the dual gear 5 on the described clutch housing assembly II axle 3; The rear end of described hollow shaft component 43 is mounted in the described gear box 30 by spline and drive bevel gear 36, described drive bevel gear 36 is meshed with the finishing bevel gear cuter of change speed gear box first bevel gear shaft 42, will give described change speed gear box first bevel gear shaft 42 by the transmission of power of driving engine output;
Described change speed gear box also is provided with the back power take-off implement, described back power take-off implement comprises the longitudinal drive shaft 13 that vertically is arranged in described gear box 30 and the clutch-bell cover 1, power on the front end of described longitudinal drive shaft 13 passes hollow shaft component 43 and is installed in described clutch housing assembly I axle 2 input driving gear 19 is connected by invoice serration, and the rear end of described longitudinal drive shaft 13 is overlapped 12 by slip engagement and is connected with tween drive spindle 10; Tween drive spindle 10, the front end of described tween drive spindle 10 is equipped with shift sleeve 12, is connected with longitudinal drive shaft 13 rear ends by slip engagement cover 12, and the rear end is equipped with takeoff output driving gear 11 afterwards; Rear power output shaft 7, described rear power output shaft 7 is installed in the rear portion of described gear box 30, the end that described rear power output shaft 7 is positioned at described gear box 30 is equipped with back takeoff output driven gear 9, described back takeoff output driven gear 9 and takeoff output driving gear 11 engagements of described back; Back takeoff output steering unit 44 is used to control described shift sleeve 12 and engages with the rear end of described longitudinal drive shaft 13 or separate.By the number of teeth of takeoff output driving gear after the proper transformation 11, can make rear power output shaft 7 obtain different rotating speeds with back takeoff output driven gear 9.
The left side of described change speed gear box also is provided with side takeoff output port, wherein, described change speed gear box first bevel gear shaft 42 left ends stretch out described gear box 30, promptly form described side takeoff output port, can drive the agricultural machinery and implement that need the side takeoff output, satisfying the requirement of user, when not needing the side takeoff output to power side output, side power take-off cover 37 can be installed in side takeoff output port place, to guarantee safety.
Described change speed gear box also is provided with the finishing bevel gear cuter slack adjuster, described finishing bevel gear cuter slack adjuster is the bearing cap shim 38 that is arranged on described change speed gear box first bevel gear shaft, 42 left side bearings and gland place, is used to regulate the finishing bevel gear cuter back lash of described drive bevel gear 36 and change speed gear box first bevel gear shaft 42.
The work drive path: clutch housing assembly I axle 2 rotates under the driving of power engine, and drive clutch housing assembly II axles 3 by the power on it input driving gear 19 and the intermediate gear 4 that is meshed with it and rotate, realize the big gear wheel and the big gear wheel engagement that is installed in the shifting slide gear 14 on hollow shaft component 43 front ends of the dual gear 5 on the clutch housing assembly II axle 3 by handling shuttle-type gearshift 16, drive hollow shaft component 43 and rotate.The drive bevel gear 36 that is installed in hollow shaft component 43 rear ends is meshed with the finishing bevel gear cuter of change speed gear box first bevel gear shaft 42, driving gear-box axle first bevel gear shaft 42 rotates, and the constant-mesh driving gear 41 by being installed in change speed gear box first bevel gear shaft 42 is meshed with secondary speed change high gear driving gear 34 on being installed in change speed gear box II axle 20, driving change speed gear box II axle 20 rotates, and be meshed with secondary speed change shifting slide gear 33 on being installed in change speed gear box III axle 23 by the secondary speed change low gear driving gear 35 of change speed gear box II axle 20, driving change speed gear box III axle 23 rotates, I retaining driving gear 24 also is installed on the change speed gear box III axle 23, II keeps off driving gear 22, III keeps off driving gear 25, IV keeps off driving gear 21, I retaining driving gear 24 and the I that is installed on the change speed gear box IV axle 26 on the change speed gear box III axle 23, the big gear wheel of III retaining shifting slide gear 27 is meshed, driving change speed gear box IV axle 26 rotates, and be meshed with deceleration big gear wheel 31 on being installed in change speed gear box V axle 28 by the reduction pinion teeth on the change speed gear box IV axle 26, driving change speed gear box V axle 28 rotates, the deceleration big gear wheel of miniature gears on change speed gear box V axle 28 and diff 29 engagement again, drive diff 29 work, power is delivered to respectively on the semiaxis of diff 29 in the semiaxis housing of change speed gear box both sides, the drive semiaxis rotates, and can realize I retaining speed change; By that analogy, by the engage position of conversion I, III retaining shifting slide gear 27, II, IV retaining shifting slide gear 32, can realize I, II, four of III, the IV low gear speed of advancing; Miniature gears by the secondary speed change shifting slide gear 33 of conversion meshes with secondary speed change high gear driving gear 34, can realize I, II, four of III, the IV high gear speed of advancing.Reverse gear then is to make miniature gears that is installed in the shifting slide gear 14 on hollow shaft component 43 front ends and idle pulley 18 engagements that are installed on the idler shaft 45 by handling shuttle-type gearshift 16, again by handling the major and minor shifter bar on the gearbox body protecgulum, the engage position of conversion I, III retaining shifting slide gear 27, II, IV retaining shifting slide gear 32, secondary speed change shifting slide gear 33 can be realized 8 reverse speeds successively.Another road drive path is: the power input driving gear 19 of power on clutch housing assembly I axle 2 and longitudinal drive shaft 13 are connected by spline, pass to longitudinal drive shaft 13, realize the synchronous rotation of longitudinal drive shaft 13 and clutch housing assembly I axle 2, realize that by handling back takeoff output steering unit 44 shift sleeves 12 engage with the rear end of longitudinal drive shaft 13.Driving tween drive shaft 10 rotates, be meshed with back takeoff output driven gear 9 on being installed in rear power output shaft 7 by the back takeoff output driving gear 11 on the tween drive shaft 10, can drive the rear power output shaft 7 that is installed on the gear box casing 30 rotates, with the rear end output of power from driving device, can be provided with takeoff output shaft-cup 8 on the rear power output shaft 7, when not needing the back takeoff output, the shaft-cup 8 that outputs power is installed on the rear power output shaft 7, to guarantee safety.
Whole transmission device compact conformation of the present utility model, realize forward gear and retreated the perfect unity of retaining, be convenient to user's choose reasonable; The utility model is the further improvement of making on the basis of existing small four-wheel tractor change speed gear box, and existing small four-wheel tractor change speed gear box machining production line can be fully used, and the resource that avoids waste has guaranteed good technology inheritance again effectively.
Claims (5)
1.8+8 the associated mode small four-wheel tractor driving device of shuttle-type gearshift is characterized in that, comprising:
The pressure-bearing type change speed gear box, comprise gear box (30) and be arranged at interior being used to of described gear box (30) driving first gear system that shaft of tractor rotates, described first gear system comprises vertical hollow shaft component (43) and bevel-gear pair and at least two horizontal tween drive shafts of change speed gear box and at least two pairs of gear pairs that are arranged in the described gear box (30);
Clutch housing assembly comprises clutch-bell cover (1) and vertically is arranged at interior second gear system that is used for the transmission of power of driving engine is given described pressure-bearing type change speed gear box of described clutch-bell cover (1);
Described gear box (30) is captiveed joint with clutch-bell cover (1);
Back power take-off implement, comprise the longitudinal drive shaft (13) that vertically is arranged in described gear box (30) and the clutch-bell cover (1), by shift sleeve (12) and described longitudinal drive shaft (13) bonded assembly tween drive spindle (10), be installed with back takeoff output driving gear (11) on the described tween drive spindle (10), rear power output shaft (7) also is installed on the described gear box (30), be installed with on the described rear power output shaft (7) with described back takeoff output driving gear (11) ingear after takeoff output driven gear (9), the clutch end of described rear power output shaft (7) is provided with back takeoff output steering unit (44).
2. the associated mode small four-wheel tractor driving device of 8+8 shuttle-type gearshift as claimed in claim 1 is characterized in that described first gear system also comprises:
Diff (29), described diff (29) is arranged in the described gear box (30), and is positioned at the driven end of first gear system, is used for driving two semiaxis that tractor wheels is rotated with giving through the transmission of power after the speed change.
3. the associated mode small four-wheel tractor driving device of 8+8 shuttle-type gearshift as claimed in claim 2 is characterized in that described second gear system comprises:
Clutch housing assembly I axle (2), described clutch housing assembly I axle (2) is connected with driving engine by power-transfer clutch, and power input driving gear (19) is installed on the described clutch housing assembly I axle (2);
Shifting slide gear (14), described shifting slide gear (14) is installed in the front end of hollow shaft component (43), controls the slip locations of described shifting slide gear (14) by shuttle-type gearshift (16), shift fork (17), locking steel ball (15);
Clutch housing assembly II axle (3) is equipped with intermediate gear (4) and dual gear (5) on the described clutch housing assembly II axle (3), described intermediate gear (4) and power input driving gear (19) engagement that is installed on the described clutch housing assembly I axle (2); The big gear wheel of described dual gear (5) meshes with the big gear wheel of the described shifting slide gear (14) that is installed in hollow shaft component (43) front end;
Idler shaft (45) is equipped with idle pulley (18) on the described idler shaft (45); Described idle pulley (18) and the pinion that is installed in the dual gear (5) on the described clutch housing assembly II axle (3).
4. the associated mode small four-wheel tractor driving device of 8+8 shuttle-type gearshift as claimed in claim 3 is characterized in that, described back power take-off implement comprises:
Vertically be arranged on the longitudinal drive shaft (13) in described gear box (30) and the clutch-bell cover (1), power input driving gear (19) on the front end of described longitudinal drive shaft (13) passes hollow shaft component (43) and is installed in described clutch housing assembly I axle (2) is connected by invoice serration, and the rear end of described longitudinal drive shaft (13) is connected with tween drive spindle (10) by slip engagement cover (12);
Tween drive spindle (10), the front end of described tween drive spindle (10) is equipped with shift sleeve (12), is connected with longitudinal drive shaft (13) rear end by slip engagement cover (12), and the rear end is equipped with back takeoff output driving gear (11);
Rear power output shaft (7), described rear power output shaft (7) is installed in the rear portion of described gear box (30), the end that described rear power output shaft (7) is positioned at described gear box (30) is equipped with back takeoff output driven gear (9), described back takeoff output driven gear (9) and described back takeoff output driving gear (11) engagement;
Back takeoff output steering unit (44) is used to control described shift sleeve (12) and engages with the rear end of described longitudinal drive shaft (13) or separate.
5. as the associated mode small four-wheel tractor driving device of claim 1,2, the gearshift of 3 or 4 described 8+8 shuttle-types, it is characterized in that: the left side of described change speed gear box is provided with side takeoff output port, described gear box (30) is stretched out in the left side of change speed gear box first bevel gear shaft (42), forms described side takeoff output port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020216172XU CN201736804U (en) | 2010-05-27 | 2010-05-27 | Driving device of 8 plus 8 shuttle gear-shifting direct-coupled small four-wheel tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020216172XU CN201736804U (en) | 2010-05-27 | 2010-05-27 | Driving device of 8 plus 8 shuttle gear-shifting direct-coupled small four-wheel tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201736804U true CN201736804U (en) | 2011-02-09 |
Family
ID=43552087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020216172XU Expired - Fee Related CN201736804U (en) | 2010-05-27 | 2010-05-27 | Driving device of 8 plus 8 shuttle gear-shifting direct-coupled small four-wheel tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201736804U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415682A (en) * | 2017-08-07 | 2017-12-01 | 许昌职业技术学院 | The transmission system of self-propelled planting machine |
| CN108533696A (en) * | 2018-06-28 | 2018-09-14 | 陕西润牧农业科技有限公司 | A kind of multi-cylinder kitten gearbox |
-
2010
- 2010-05-27 CN CN201020216172XU patent/CN201736804U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415682A (en) * | 2017-08-07 | 2017-12-01 | 许昌职业技术学院 | The transmission system of self-propelled planting machine |
| CN107415682B (en) * | 2017-08-07 | 2024-02-13 | 许昌职业技术学院 | Transmission system of self-propelled planting machine |
| CN108533696A (en) * | 2018-06-28 | 2018-09-14 | 陕西润牧农业科技有限公司 | A kind of multi-cylinder kitten gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20140527 |