CN218818014U - Special gearbox for crawler belt rotary cultivator of crawler belt tractor - Google Patents
Special gearbox for crawler belt rotary cultivator of crawler belt tractor Download PDFInfo
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- CN218818014U CN218818014U CN202121064875.XU CN202121064875U CN218818014U CN 218818014 U CN218818014 U CN 218818014U CN 202121064875 U CN202121064875 U CN 202121064875U CN 218818014 U CN218818014 U CN 218818014U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model relates to an agricultural machinery specifically is a special gearbox of crawler tractor track rotary cultivator, has solved the requirement of the different rotational speeds of different functions. The walking box is provided with a power output shaft, the size of the power output shaft is the same as that of the four-wheel tractor, all agricultural implements of the four-wheel tractor can be conveniently connected for use, and the purpose of one machine with multiple purposes is really achieved. The power output shaft is designed to rotate positively and negatively, and the positive and negative rotation of the power output shaft can be changed only by operating the gear shifting lever during ditching and fertilizing, so that function conversion is easily realized, and a gearbox does not need to be replaced. The clutch gear with the self-locking function is designed in the gearbox, when the gearbox turns around, the clutch gear is separated from the power transmission gear, and the clutch gear is locked with the gearbox body immediately after the power of the crawler belt is cut off, so that the manufacturing cost is reduced, the failure rate is reduced, and the reliability is greatly improved. The special gearbox of the crawler belt rotary cultivator of the small crawler belt tractor fills the blank.
Description
Technical Field
The utility model relates to an agricultural machinery specifically is a special gearbox of crawler tractor track rotary cultivator.
Background
With the vigorous development of greenhouse planting and fruit tree scale planting, the crawler-type rotary cultivator of the small-sized crawler-type tractor is deeply favored by broad growers due to the characteristic of small turning radius and flexible turning. The gear box of the small-sized crawler tractor and the crawler rotary cultivator on the current market is basically developed from the gear box of the walking tractor, and the gear box has the following defects: firstly, the gear is few and is difficult to satisfy the rotational speed demand of multiple functions. And secondly, the walking box is not provided with a rear output shaft, the power transmission between the walking box and the working box is realized through a belt or a chain, the agricultural implement cannot be commonly used with a four-wheel tractor, and the multipurpose of one machine is difficult to realize. Thirdly, the working box does not rotate positively and negatively, and the cutter needs to rotate reversely when the ditching and fertilizing functions are realized, under the condition, the method of replacing the working gearbox can be adopted, so that the manufacturing cost of the machine is increased, and the labor intensity of an operator is also increased. Fourthly, the steering and turning adopts a braking principle, namely, the half shaft on one side is braked by a brake disc to cut off the power of the crawler belt when the steering and turning is carried out, and the mode has high manufacturing cost, high failure rate and poor reliability.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a special gearbox of track machine of 6 individual advance shelves, two reverse gears, a neutral gear has solved the requirement of the different rotational speeds of different functions. The walking box is provided with a power output shaft, the size of the power output shaft is the same as that of the four-wheel tractor, all agricultural implements of the four-wheel tractor can be conveniently connected for use, and the purpose of one machine with multiple purposes is really achieved. The power output shaft is designed to rotate positively and negatively, and the positive and negative rotation of the power output shaft can be changed only by operating the gear shifting lever during ditching and fertilizing, so that function conversion is easily realized, and a gearbox is not required to be replaced. The clutch gear with the self-locking function is designed in the gearbox, when the gearbox turns around, the clutch gear is separated from the power transmission gear, and the clutch gear is locked with the gearbox body immediately after the power of the crawler belt is cut off, so that the manufacturing cost is reduced, the failure rate is reduced, and the reliability is greatly improved. The special gearbox of the crawler belt rotary cultivator of the small crawler belt tractor fills the blank.
The utility model discloses the concrete technical scheme who takes is:
this kind of special gearbox of crawler tractor track rotary cultivator, including the box, its characterized in that: a rear output reversing shaft, a main shaft, a counter shaft, a secondary speed change idler shaft, a steering clutch shaft, a left half shaft and a right half shaft are sequentially arranged in the box body from front to back on the left and right walls in a rotating mode, and a rear output shaft and a rear output idler shaft which are arranged in the front-back direction on the front wall and the inner box partition plate in a rotating mode are arranged in the box body in a rotating mode;
the rear output reversing shaft is fixedly provided with a rear output driven gear, a left bevel gear, a rear output reversing shifting block, a rear output reversing shifting fork connected with the rear output reversing shifting block and a right bevel gear from left to right in sequence;
a rear output driving gear, a two-gear three-gear duplicate gear and a one-gear reverse-gear duplicate gear are fixedly arranged on the main shaft from left to right in sequence, the rear output driving gear is meshed with a rear output driven gear, the two-gear three-gear duplicate gear is connected with a first shifting fork, and the one-gear reverse-gear duplicate gear is connected with a second shifting fork;
a second gear, a third gear intermediate wheel and a first gear intermediate wheel are fixedly arranged on the auxiliary shaft from left to right in sequence;
a second-stage low-speed gear, a second-stage variable-speed internal gear and a second-stage high-speed gear reverse gear are sequentially fixedly arranged on the second-stage variable-speed shaft from left to right, and a third shifting fork is connected to the second-stage variable-speed internal gear
A secondary low-speed intermediate gear and a secondary high-speed intermediate gear are fixedly arranged on the secondary variable-speed intermediate gear shaft from left to right in sequence, the secondary low-speed intermediate gear is meshed with the secondary low-speed gear, and the secondary high-speed intermediate gear is meshed with the secondary high-speed gear;
a left steering driving wheel, a clutch fixed wheel and a right steering driving wheel are sequentially and fixedly arranged on the steering clutch shaft from left to right, the left steering driving wheel is connected with a fourth shifting fork, the clutch fixed wheel is meshed with the second-stage high-speed idle wheel, the right steering driving wheel is connected with a fifth shifting fork,
the inner end of the left half shaft is fixedly connected with a left gear, and the left gear is meshed with a left steering driving wheel;
the inner end of the right half shaft is fixedly connected with a right gear, and the right gear is meshed with a right steering driving wheel;
the inner end of the rear output shaft is fixedly provided with a rear output low-speed gear, a rear output gear shifting internal gear and a rear output high-speed gear in sequence from back to front, and the rear output gear shifting internal gear is connected with a sixth shifting fork;
the rear output intermediate wheel shaft is fixedly provided with a rear output low-speed intermediate wheel, a rear output high-speed intermediate wheel and a front bevel gear in sequence from back to front, the rear output low-speed intermediate wheel is meshed with the rear output low-speed gear, the rear output high-speed intermediate wheel is meshed with the rear output high-speed gear, and the front bevel gear is meshed with the left bevel gear and the right bevel gear.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of another view angle of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The gearbox special for the crawler belt rotary cultivator of the crawler belt tractor comprises a box body, wherein a rear output reversing shaft 34, a main shaft 1, a secondary shaft 4, a secondary speed change shaft 6, a secondary speed change idler shaft 17, a steering clutch shaft 21, a left half shaft 32 and a right half shaft 33 are sequentially arranged on the left wall and the right wall of the box body in a rotating mode from front to back, and a rear output shaft 43 and a rear output idler shaft 48 are arranged on the front wall and an inner partition plate of the box body in a rotating mode, wherein the axial direction of the rear output reversing shaft 34, the main shaft 1, the secondary shaft 4, the secondary speed change shaft 6, the secondary speed change idler shaft 17, the steering clutch shaft 21, the left half shaft 32 and the right half shaft 33 are in the left-right direction;
the rear output reversing shaft 34 is fixedly provided with a rear output driven gear 35, a left bevel gear 36, a rear output reversing shifting block 38, a rear output reversing shifting fork 49 connected with the rear output reversing shifting block 38 and a right bevel gear 40 in sequence from left to right;
a rear output driving gear 39, a second-gear third-gear duplicate gear 9 and a first-gear reverse-gear duplicate gear 2 are fixedly arranged on the main shaft 1 from left to right in sequence, the rear output driving gear 39 is meshed with a rear output driven gear 35, the second-gear third-gear duplicate gear 9 is connected with a first shifting fork 10, and the first-gear reverse-gear duplicate gear is connected with a second shifting fork 3;
a second gear, a third gear intermediate wheel 11 and a first gear intermediate wheel 5 are fixedly arranged on the auxiliary shaft 4 from left to right in sequence;
a secondary low-speed gear 16, a secondary variable-speed internal gear 13 and a secondary high-speed gear 15 reverse gear 7 are fixedly arranged on the secondary variable-speed shaft 6 from left to right in sequence, a third shifting fork 14 is connected to the secondary variable-speed internal gear 13, a secondary low-speed intermediate gear 18 and a secondary high-speed intermediate gear 19 are fixedly arranged on a secondary variable-speed intermediate gear shaft 17 from left to right in sequence, the secondary low-speed intermediate gear 18 is meshed with the secondary low-speed gear 16, and the secondary high-speed intermediate gear 19 is meshed with the secondary high-speed gear 15;
a left steering driving wheel 26, a clutch fixed wheel 20 and a right steering driving wheel 27 are fixedly arranged on the steering clutch shaft 21 from left to right in sequence, a fourth shifting fork 23 is connected on the left steering driving wheel 26, the clutch fixed wheel 20 is meshed with the second-stage high-speed idle wheel 19, a fifth shifting fork 29 is connected on the right steering driving wheel 27,
the inner end of the left half shaft 32 is fixedly connected with a left gear 25, and the left gear 25 is meshed with a left steering driving wheel 26;
the inner end of the right half shaft 33 is fixedly connected with a right gear 31, and the right gear 31 is meshed with the right steering driving wheel 27;
the inner end of the rear output shaft 43 is fixedly provided with a rear output low-speed gear 44, a rear output gear shifting internal gear 45 and a rear output high-speed gear 47 in sequence from back to front, and the rear output gear shifting internal gear 45 is connected with a sixth shifting fork 46;
the rear output intermediate wheel shaft 48 is fixedly provided with a rear output low-speed intermediate wheel 42, a rear output high-speed intermediate wheel 41 and a front bevel gear 37 in sequence from back to front, the rear output low-speed intermediate wheel 42 is meshed with a rear output low-speed gear 44, the rear output high-speed intermediate wheel 41 is meshed with a rear output high-speed gear 47, and the front bevel gear 37 is meshed with the left bevel gear 36 and the right bevel gear 40.
The gear shifting working principle is as follows:
the engine power is transmitted to the gearbox through the main shaft 1, and the main shaft 1 is provided with a first-gear reverse gear duplicate gear 2 and a second-gear third-gear duplicate gear 9 to form a first-stage speed change gear set. The secondary speed change shaft 6 is provided with a secondary low-speed gear 16, a secondary high-speed gear 15 and a secondary speed change internal gear 13 reverse gear 7 to form a secondary speed change gear set. When the third shifting fork 14 is shifted to enable the second-stage speed change internal gear 13 to be meshed with the small-end gear on the second-stage low-speed gear 16, the second shifting fork 3 is shifted to enable the large-end gear of the first-gear reverse gear duplicate gear 2 to be meshed with the first-gear intermediate gear 5 on the auxiliary shaft 4, at the moment, the first gear is in a low speed, and when the second shifting fork 3 is shifted to enable the small-end gear of the first-gear reverse gear duplicate gear 2 to be meshed with the reverse gear 7 on the second-stage speed change shaft 6, the reverse gear is in a low speed. When the first shifting fork 10 is shifted, the small end gear of the two-gear three-gear duplicate gear 9 is meshed with the large end gear of the two-gear three-gear intermediate gear 11 on the auxiliary shaft 4, and the two gears are low-speed two gears at the moment. When the first shifting fork 10 is shifted, the big end gear of the two-gear three-gear duplicate gear 9 is meshed with the small end gear of the two-gear three-gear intermediate gear 11 on the auxiliary shaft 4, and the gear is the low-speed three-gear.
Similarly, when the third shifting fork 14 is shifted to enable the second-stage speed change internal gear 13 to be meshed with the small-end gear on the second-stage high-speed gear 15, the second shifting fork 3 is shifted to enable the large-end gear of the first-gear reverse gear duplicate gear 2 to be meshed with the first-gear intermediate gear 5 on the auxiliary shaft 4, and at the moment, the first gear is high-speed. When the second shifting fork 3 is shifted, the small end gear of the first-gear reverse gear duplicate gear 2 is meshed with the reverse gear 7 on the second-stage speed change shaft 6, and at the moment, high-speed reverse gear is achieved. When the first shifting fork 10 is shifted, the small end gear of the two-gear three-gear duplicate gear 9 is meshed with the large end gear of the two-gear three-gear intermediate gear 11 on the auxiliary shaft 4, and the gear is the high-speed two gear. The first shifting fork 10 is moved to enable a large-end gear of the two-gear three-gear duplicate gear 9 to be meshed with a small-end gear of a two-gear three-gear intermediate gear 11 on the auxiliary shaft 4, and at the moment, the gear is in a high-speed three-gear state.
The steering and turning working principle is as follows:
the secondary speed-changing intermediate wheel shaft 17 is fixedly provided with a secondary low-speed intermediate wheel 18 and a secondary high-speed intermediate wheel 19, the secondary low-speed intermediate wheel 18 is meshed with a secondary low-speed gear 16, and the secondary high-speed intermediate wheel 19 is meshed with a secondary high-speed gear 15. Thus, the power of the engine is transmitted to the secondary intermediate gear shaft 17 through the primary speed change gear set on the main shaft 1, the primary speed change gear set on the auxiliary shaft 4 and the secondary speed change gear set on the secondary speed change shaft 6. A second-stage high-speed intermediate wheel 19 on a second-stage intermediate wheel shaft 17 is meshed with a clutch fixed wheel 20 fixed on a steering clutch shaft 21 to transmit power to a rotor
Toward the clutch shaft 21. The steering clutch shaft 21 is also fixedly provided with a left steering driving wheel 26 and a right steering driving wheel 27, the left steering driving wheel 26 and the right steering driving wheel 27 rotate freely on the steering clutch shaft 21, the right steering driving wheel 27 is always meshed with a right gear 31 fixedly arranged on a half shaft 33, the outer end of the right steering driving wheel 27 is fixedly provided with a spring 28 on the clutch shaft 21, the right steering driving wheel 27 is meshed with the internal teeth of the clutch fixed wheel 20 under the action of the spring 28 under normal conditions, the normally closed state is kept, and power is transmitted to the half shaft 33 from the clutch fixed wheel 20 through the right steering driving wheel 27 and the right gear 31. Similarly, the left steering driving wheel 26 is always meshed with the left gear 25 fixed on the half shaft 32, the spring 24 is fixed on the steering clutch shaft 21 at the outer end of the left steering driving wheel 26, the left steering driving wheel 26 is meshed with the internal teeth of the clutch fixed wheel 20 under the action of the spring 24 under normal conditions, the normally closed state is kept, and power is transmitted to the half shaft 32 from the clutch fixed wheel 20 through the left steering driving wheel 26 and the left gear 25. Thus, in the normal case, the half shafts 32 and 33 rotate synchronously in the same direction to ensure that the machine is running straight. When the fourth shifting fork 23 is shifted to enable the left steering driving wheel 26 to move outwards, the left steering driving wheel 26 is separated from the internal teeth of the clutch fixed wheel 20 to cut off power transmission, the left steering driving wheel 26 continues to move outwards, the outer end of the left steering driving wheel 26 is connected with a locking block 22 fixedly arranged on the gearbox body, therefore, the half shaft 32 is locked, and the half shaft 33 continues to rotate so as to realize left steering or turning. Similarly, when the fifth fork 29 is shifted to move the right steering wheel 27 outwards, the right steering wheel 27 is separated from the internal teeth of the fixed clutch wheel 20 to cut off power transmission, the right steering wheel 27 continues to move outwards, the outer end of the right steering wheel 27 is engaged with the locking block 30 fixed on the gearbox body, so that the half shaft 33 is locked, and the half shaft 32 continues to rotate to realize steering or turning to the right.
The working principle of positive and negative rotation of the rear output shaft is as follows:
a rear output driving gear 39 is fixedly arranged on the main shaft 1, the rear output driving gear 39 is meshed with a rear output driven gear 35 fixedly arranged on a rear output reversing shaft 34, so that the power of an engine is transmitted to the rear output reversing shaft 34 through the rear output driving gear 39 and the rear output driven gear 35 of the main shaft 1, a left bevel gear 36 and a right bevel gear 40 are fixedly arranged on the rear output reversing shaft 34, the left bevel gear 36 and the right bevel gear 40 freely rotate on the rear output reversing shaft 34, a rear output reversing shifting block 38 is fixedly arranged between the left bevel gear 36 and the right bevel gear 40, the rear output reversing shifting block 38 is fixedly arranged on the rear output reversing shaft 34 through splines and synchronously rotates with the rear output reversing shaft 34, and the left bevel gear 36 and the right bevel gear 40 are simultaneously meshed with a front bevel gear 37 fixedly arranged on a rear output intermediate gear shaft 48. When the shifting fork 49 is shifted to move the clutch shifting block 38 leftward to be engaged with the left bevel gear 36, the power is transmitted from the rear output reversing shaft 34 to the rear output intermediate shaft 48 through the left bevel gear 36 and the front bevel gear 37, as shown in fig. 2, the rear output high-speed intermediate wheel 41 and the rear output low-speed intermediate wheel 42 are further fixedly arranged on the rear output intermediate shaft 48, the rear output high-speed intermediate wheel 41 is engaged with the rear output high-speed gear 47 fixedly arranged on the rear output shaft 43, the rear output low-speed intermediate wheel 42 is engaged with the rear output low-speed gear 44 fixedly arranged on the rear output shaft 43, the rear output low-speed gear 44 and the rear output high-speed gear 47 freely rotate on the rear output shaft 43, the rear output shifting internal gear 45 is further fixedly arranged between the rear output low-speed gear 44 and the rear output high-speed gear 47, the rear shifting internal gear 45 is engaged with the external teeth on the rear output shaft 43 and can slide on the rear output shaft 43, and when the sixth shifting fork 46 is shifted to enable the rear output reversing internal gear 45 to be engaged with the small-end gear of the rear output low-speed intermediate wheel 43, and the power is transmitted to the rear output low-speed intermediate wheel 43 through the rear output intermediate wheel 43. When the sixth shifting fork 46 is shifted to enable the rear output reversing internal gear 45 to move forwards to be meshed with the small-end gear of the rear output high-speed gear 47, power is transmitted to the rear output shaft 43 through the rear output high-speed intermediate gear 41 and the rear output high-speed gear 47 by the rear output intermediate gear shaft 48, and at the moment, the rear output shaft 43 rotates forwards at a high speed.
Similarly, when the shifting fork 49 is shifted to enable the clutch shifting block 38 to move rightwards to be meshed with the right bevel gear 40, the sixth shifting fork 46 is shifted to enable the rear output reversing internal gear 45 to move backwards to be meshed with the small-end gear of the rear output low-speed gear 44, then the output shaft is in low-speed reverse rotation, and the sixth shifting fork 46 is shifted to enable the rear output reversing internal gear 45 to move forwards to be meshed with the small-end gear of the rear output high-speed gear 47, and then the output shaft is in high-speed reverse rotation.
Claims (1)
1. The utility model provides a special gearbox of crawler tractor track rotary cultivator, includes the box, its characterized in that: a rear output reversing shaft (34), a main shaft (1), an auxiliary shaft (4), a secondary speed change shaft (6), a secondary speed change intermediate shaft (17), a steering clutch shaft (21), a left half shaft (32) and a right half shaft (33) which are axially arranged in the left and right walls in the box body are sequentially arranged from front to back, and a rear output shaft (43) and a rear output intermediate shaft (48) which are axially arranged in the front and back directions are arranged on the front wall and the inner partition plate in the box body;
the rear output reversing shaft (34) is fixedly provided with a rear output driven gear (35), a left bevel gear (36), a rear output reversing shifting block (38), a rear output reversing shifting fork (49) connected with the rear output reversing shifting block (38) and a right bevel gear (40) from left to right in sequence;
a rear output driving gear (39), a two-gear three-gear duplicate gear (9) and a first-gear reverse-gear duplicate gear (2) are fixedly arranged on the main shaft (1) from left to right in sequence, the rear output driving gear (39) is meshed with a rear output driven gear (35), the two-gear three-gear duplicate gear (9) is connected with a first shifting fork (10), and the first-gear reverse-gear duplicate gear is connected with a second shifting fork (3);
a second gear, a third gear intermediate wheel (11) and a first gear intermediate wheel (5) are fixedly arranged on the auxiliary shaft (4) from left to right in sequence;
a secondary low-speed gear (16), a secondary variable-speed internal gear (13) and a secondary high-speed gear (15) reverse gear (7) are sequentially fixed on the secondary variable-speed shaft (6) from left to right, and the secondary variable-speed internal gear (13) is connected with a third shifting fork (14)
A secondary low-speed intermediate wheel (18) and a secondary high-speed intermediate wheel (19) are fixedly arranged on the secondary variable-speed intermediate wheel shaft (17) from left to right in sequence, the secondary low-speed intermediate wheel (18) is meshed with a secondary low-speed gear (16), and the secondary high-speed intermediate wheel (19) is meshed with a secondary high-speed gear (15);
a left steering driving wheel (26), a clutch fixed wheel (20) and a right steering driving wheel (27) are fixedly arranged on the steering clutch shaft (21) from left to right in sequence, a fourth shifting fork (23) is connected on the left steering driving wheel (26), the clutch fixed wheel (20) is meshed with the second-stage high-speed idle wheel (19), a fifth shifting fork (29) is connected on the right steering driving wheel (27),
the inner end of the left half shaft (32) is fixedly connected with a left gear (25), and the left gear (25) is meshed with a left steering driving wheel (26);
the inner end of the right half shaft (33) is fixedly connected with a right gear (31), and the right gear (31) is meshed with a right steering driving wheel (27);
the inner end of the rear output shaft (43) is fixedly provided with a rear output low-speed gear (44), a rear output gear shifting internal gear (45) and a rear output high-speed gear (47) in sequence from back to front, and the rear output gear shifting internal gear (45) is connected with a sixth shifting fork (46);
the rear output intermediate wheel shaft (48) is fixedly provided with a rear output low-speed intermediate wheel (42), a rear output high-speed intermediate wheel (41) and a front bevel gear (37) in sequence from back to front, the rear output low-speed intermediate wheel (42) is meshed with a rear output low-speed gear (44), the rear output high-speed intermediate wheel (41) is meshed with a rear output high-speed gear (47), and the front bevel gear (37) is meshed with the left bevel gear (36) and the right bevel gear (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121064875.XU CN218818014U (en) | 2021-05-18 | 2021-05-18 | Special gearbox for crawler belt rotary cultivator of crawler belt tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121064875.XU CN218818014U (en) | 2021-05-18 | 2021-05-18 | Special gearbox for crawler belt rotary cultivator of crawler belt tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218818014U true CN218818014U (en) | 2023-04-07 |
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ID=87276675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121064875.XU Active CN218818014U (en) | 2021-05-18 | 2021-05-18 | Special gearbox for crawler belt rotary cultivator of crawler belt tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218818014U (en) |
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2021
- 2021-05-18 CN CN202121064875.XU patent/CN218818014U/en active Active
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