CN218718533U - Gear box of rotary cultivator - Google Patents
Gear box of rotary cultivator Download PDFInfo
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- CN218718533U CN218718533U CN202223073050.1U CN202223073050U CN218718533U CN 218718533 U CN218718533 U CN 218718533U CN 202223073050 U CN202223073050 U CN 202223073050U CN 218718533 U CN218718533 U CN 218718533U
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- 230000005540 biological transmission Effects 0.000 description 15
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- 239000002689 soil Substances 0.000 description 3
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Abstract
The utility model provides a gearbox of rotary cultivator belongs to mechanical technical field. It has solved the gearbox of current rotary cultivator and has shifted steady and the great problem of noise inadequately. This gearbox of rotary cultivator, including the box, be equipped with the input shaft in the box, output shaft and jackshaft, gear drive links to each other between jackshaft and the input shaft, is equipped with combination tooth one, spline hub and combination tooth two on the jackshaft, adopts spline circumference to link firmly mutually between spline hub and the jackshaft, has linked firmly output gear one and output gear two on the output shaft, and the outside cover of spline hub is equipped with clutch collar and shift fork, and the clutch collar links to each other for the spline between hub. The gearbox of the rotary cultivator has the advantages of stable gear shifting and reliable structure.
Description
Technical Field
The utility model belongs to the technical field of machinery, a gearbox, especially a gearbox of rotary cultivator are related to.
Background
The rotary cultivator is a cultivator which is matched with a tractor to complete the operations of ploughing and harrowing. The soil breaking machine has the characteristics of strong soil breaking capacity, flat ground surface after ploughing and the like, so that the soil breaking machine is widely applied; meanwhile, the stubble buried below the ground surface can be cut up, the operation of the seeder is convenient, and a good seedbed is provided for later-stage seeding.
At rotary cultivator knife department, the speed governing is not generally carried out to rotary cultivator knife, even if can carry out the speed governing, also adopt the spur gear to carry out the variable speed, the degree of adaptability of spur gear is relatively poor to can appear falling the phenomenon of keeping off after long-time use wearing and tearing, traditional spur gear gearbox has following shortcoming moreover: the operation is not stable and the noise is large. For example, the gearbox of the rotary cultivator (application number: 200620007511.7) disclosed in the Chinese patent document is assembled by a box body, a box sleeve, a bevel gear A, a bevel gear B, a gear A, a gear B, a small spline shaft, a large spline shaft, a conjoined sliding gear, a stop lever mechanism, a bearing, a universal part and a standard part; wherein the large spline shaft and the small spline shaft are supported in a vertical plane in the box body in parallel through bearings, and a connecting body sliding gear is assembled on the large spline shaft in a sliding way; the conjoined sliding gear is provided with a big gear and a small gear which can be respectively meshed with a gear A and a gear B arranged on a small spline shaft to be matched into two groups of transmission pairs; a stop lever mechanism pulls the sliding gear to realize two transmission configurations; a bevel gear A is arranged on the small spline shaft and meshed with a bevel gear B in the vertical direction, the bevel gear B is sleeved on the box body through a box, and an input shaft of the tractor is matched with a shaft hole of the bevel gear B to transmit power. But the gear shifting of the gear box of the rotary cultivator is not smooth enough and the noise is large.
Disclosure of Invention
The utility model aims at solving the problems in the prior art, and provides a gearbox of a rotary cultivator with stable gear shifting and reliable structure.
The purpose of the utility model can be realized by the following technical proposal: the gearbox of rotary cultivator, the power distribution box comprises a box body, the box in be equipped with input shaft, output shaft and jackshaft, the jackshaft with the input shaft between gear drive link to each other, the jackshaft on be equipped with combination tooth one, spline hub and combination tooth two, its characterized in that, spline hub with the jackshaft between adopt spline circumference to link firmly mutually, combination tooth one, combination tooth two with the jackshaft between be equipped with the bearing, the output shaft on link firmly output gear one and output gear two, the outside cover of spline hub be equipped with the clutch collar and can drive clutch collar axial displacement's shift fork, clutch collar and spline hub between link to each other for the spline, the shift fork can drive the clutch collar past combination tooth direction remove make the clutch collar with combination tooth one mesh mutually, the shift fork can drive the clutch collar past combination tooth two direction remove make the clutch collar with combination tooth two mesh mutually.
When the clutch is in work, power is input from the input shaft, the input shaft drives the intermediate shaft to rotate through the gear drive, the intermediate shaft drives the spline hub and the joint sleeve to rotate through spline connection, at the moment, the joint sleeve is not meshed with the first joint tooth or the second joint tooth, and the output shaft is in a neutral gear state. Drive the clutch collar through the shift fork and make clutch collar and combination tooth mesh mutually toward combining tooth one side to remove, the clutch collar is in the separation state with combination tooth two this moment, the clutch collar transmits the power of jackshaft for the output shaft through the clutch collar with the meshing of combining tooth one, when needs are shifted gears, drive the clutch collar through the shift fork and make the clutch collar and combine tooth two-phase meshing toward combining tooth two side to remove, the clutch collar is in the separation state with combination tooth one this moment, the clutch collar passes through the clutch collar with the power of jackshaft and combines the meshing of tooth two to transmit for the output shaft, make the output shaft realize two different work gears, have the steady and reliable advantage of structure of shifting gears.
In the gearbox of the rotary cultivator, the input shaft is fixedly connected with a first bevel gear, one end of the intermediate shaft is fixedly connected with a second bevel gear, and the first bevel gear is meshed with the second bevel gear. The input shaft drives the intermediate shaft to rotate through the meshing of the first bevel gear and the second bevel gear, and the transmission mechanism has the advantages of high transmission efficiency and compact structure.
In the gearbox of the rotary cultivator, a needle bearing is arranged between the first combining tooth and the intermediate shaft, an inner ring of the needle bearing is tightly sleeved on the intermediate shaft, and an outer ring of the needle bearing is embedded in the inner side of the first combining tooth. The needle roller bearing is arranged between the first combination teeth and the intermediate shaft, and the needle roller bearing has the advantages of being reliable and stable in operation and long in service life.
In the gearbox of the rotary cultivator, a needle bearing is arranged between the second combining tooth and the intermediate shaft, an inner ring of the needle bearing is tightly sleeved on the intermediate shaft, and an outer ring of the needle bearing is embedded in the inner side of the second combining tooth.
In the gearbox of the rotary cultivator, the outer side wall of one end of the first combining tooth, which is close to the joint sleeve, is provided with an external spline, the inner side of the joint sleeve is provided with a spline groove, and the external spline of the first combining tooth and the spline groove of the joint sleeve can be meshed. The transmission of adopting external splines and spline groove has the advantage that transmission efficiency is high and the structure is reliable.
In the gearbox of the rotary cultivator, the outer side wall of the joint sleeve is annularly provided with a shifting fork groove, and the outer end of the shifting fork is embedded in the shifting fork groove. The outer end of the shifting fork is embedded in the shifting fork groove, so that the shifting fork can drive the joint sleeve to axially move, and the device has the advantages of simple structure and reliable work.
In the gearbox of the rotary cultivator, one side of the box body is fixedly connected with the connecting cylinder, the input shaft and the connecting cylinder are coaxially arranged, and a bearing is arranged between the connecting cylinder and the input shaft. Through setting up foretell connecting cylinder, to the better advantage of input shaft location effect.
In the gearbox of the rotary cultivator, the transmission ratio of the first combining tooth and the first output gear is different from the transmission ratio of the second combining tooth and the second output gear. The transmission ratio of the combination tooth I and the output gear I is different from that of the combination tooth II and the output gear II, so that the gearbox can be at a high speed and a low speed, and the rotary cultivator can be suitable for places with different working conditions.
Compared with the prior art, the gearbox of the rotary cultivator has the following advantages:
1. the shifting fork drives the joint sleeve to move towards the first joint tooth or the second joint tooth to enable the joint sleeve to be meshed with the corresponding joint tooth, and the joint sleeve transmits the power of the intermediate shaft to the output shaft through the meshing of the joint sleeve and the corresponding joint tooth, so that the output shaft can realize two different working gears, and the gear shifting device has the advantages of stable gear shifting and reliable structure;
2. the needle roller bearings are arranged between the first combination teeth, the second combination teeth and the intermediate shaft, so that the needle roller bearing has the advantages of reliable and stable work and long service life;
3. the outer side wall of one end, close to the joint sleeve, of the first combination tooth is provided with an external spline, the inner side of the joint sleeve is provided with a spline groove, and the external spline of the first combination tooth and the spline groove of the joint sleeve can be meshed with each other, so that the transmission efficiency is high, and the structure is reliable;
4. the outer end of the shifting fork is embedded in the shifting fork groove, so that the shifting fork can drive the joint sleeve to axially move, and the device has the advantages of simple structure and reliable work.
Drawings
FIG. 1 is a schematic top view of the gearbox of the rotary tiller.
Fig. 2 is an internal schematic view of the gearbox of the rotary cultivator.
FIG. 3 is a schematic cross-sectional view of the gearbox of the rotary tiller.
In the figure, 1, a box body; 2. an input shaft; 3. an output shaft; 4. an intermediate shaft; 5. a first combining tooth; 6. a splined hub; 7. a second combination tooth; 8. a first output gear; 9. a second output gear; 10. a joint sleeve; 10a, a shifting fork groove; 11. a shifting fork; 12. a first bevel gear; 13. a second bevel gear; 14. a needle bearing; 15. a connecting cylinder.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 3, a gearbox of a rotary cultivator comprises a box body 1, an input shaft 2, an output shaft 3 and an intermediate shaft 4 are arranged in the box body 1, the intermediate shaft 4 is in gear transmission connection with the input shaft 2, a first combination gear 5, a spline hub 6 and a second combination gear 7 are arranged on the intermediate shaft 4, the spline hub 6 and the intermediate shaft 4 are fixedly connected in the circumferential direction through splines, the first combination gear 5, a bearing is arranged between the second combination gear 7 and the intermediate shaft 4, a first output gear 8 and a second output gear 9 are fixedly connected onto the output shaft 3, a joint sleeve 10 and a shifting fork 11 capable of driving the joint sleeve 10 to move axially are sleeved on the outer side of the spline hub 6, the joint sleeve 10 is connected with the spline hub 6 through splines, the shifting fork 11 can drive the joint sleeve 10 to move towards the first combination gear 5 to enable the joint sleeve 10 to be meshed with the first combination gear 5, and the shifting fork 11 can drive the joint sleeve 10 to move towards the second combination gear 7 to enable the joint sleeve 10 to be meshed with the second combination gear 7.
The input shaft 2 is fixedly connected with a first bevel gear 12, one end of the intermediate shaft 4 is fixedly connected with a second bevel gear 13, and the first bevel gear 12 is meshed with the second bevel gear 13, so that the transmission mechanism has the advantages of high transmission efficiency and compact structure.
A needle bearing 14 is arranged between the first combination teeth 5 and the intermediate shaft 4, an inner ring of the needle bearing 14 is tightly sleeved on the intermediate shaft 4, and an outer ring of the needle bearing 14 is embedded in the inner side of the first combination teeth 5. A needle bearing 14 is arranged between the second combination teeth 7 and the intermediate shaft 4, the inner ring of the needle bearing 14 is tightly sleeved on the intermediate shaft 4, and the outer ring of the needle bearing 14 is embedded in the inner side of the second combination teeth 7.
The outer side wall of one end, close to the joint sleeve 10, of the first combination tooth 5 is provided with an external spline, the inner side of the joint sleeve 10 is provided with a spline groove, and the external spline of the first combination tooth 5 can be meshed with the spline groove of the joint sleeve 10.
The outer side wall of the joint sleeve 10 is annularly provided with a shifting fork groove 10a, the outer end of the shifting fork 11 is embedded in the shifting fork groove 10a, so that the shifting fork 11 can drive the joint sleeve 10 to move axially, and the joint sleeve has the advantages of simple structure and reliable work.
One side of box 1 has linked firmly connecting cylinder 15, and input shaft 2 sets up with connecting cylinder 15 is coaxial, is equipped with the bearing between connecting cylinder 15 and the input shaft 2, to the better advantage of input shaft 2 location effect.
The transmission ratio of the combination tooth I5 and the output gear I8 is different from the transmission ratio of the combination tooth II 7 and the output gear II 9, so that the gearbox can be in high speed and low speed, and the rotary cultivator can be suitable for places with different working conditions.
When the clutch is in operation, power is input from the input shaft 2, the input shaft 2 drives the intermediate shaft 4 to rotate through the gear, the intermediate shaft 4 drives the spline hub 6 and the joint sleeve 10 to rotate through spline connection, at the moment, the joint sleeve 10 is not meshed with the first combination teeth 5 or the second combination teeth 7, and the output shaft 3 is in a neutral gear state. The shifting fork 11 drives the joint sleeve 10 to move towards the first 5 direction of the combined teeth to enable the joint sleeve 10 to be meshed with the first 5 direction of the combined teeth, at the moment, the joint sleeve 10 and the second 7 direction of the combined teeth are in a separation state, the joint sleeve 10 transmits the power of the intermediate shaft 4 to the output shaft 3 through the meshing of the joint sleeve 10 and the first 5 direction of the combined teeth, when the gear needs to be shifted, the shifting fork 11 drives the joint sleeve 10 to move towards the second 7 direction of the combined teeth to enable the joint sleeve 10 to be meshed with the second 7 direction of the combined teeth, at the moment, the joint sleeve 10 and the first 5 direction of the combined teeth are in a separation state, the joint sleeve 10 transmits the power of the intermediate shaft 4 to the output shaft 3 through the meshing of the joint sleeve 10 and the second 7 direction of the combined teeth, the output shaft 3 achieves two different working gears, and the advantages of stable gear shifting and reliable structure are achieved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of the housing 1, the input shaft 2, the output shaft 3, the intermediate shaft 4, the coupling tooth one 5, the spline hub 6, the coupling tooth two 7, the output gear one 8, the output gear two 9, the engaging sleeve 10, the shift fork groove 10a, the shift fork 11, the bevel gear one 12, the bevel gear two 13, the needle bearing 14, the connecting cylinder 15, etc., are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (8)
1. Gearbox of rotary cultivator, including box (1), box (1) in be equipped with input shaft (2), output shaft (3) and jackshaft (4), jackshaft (4) with input shaft (2) between gear drive link to each other, jackshaft (4) on be equipped with and combine tooth (5), spline hub (6) and combine tooth two (7), its characterized in that, spline hub (6) with jackshaft (4) between adopt spline circumference to link firmly mutually, combination tooth one (5), combination tooth two (7) with jackshaft (4) between be equipped with the bearing, output shaft (3) on link firmly output gear one (8) and output gear two (9), the outside cover of spline hub (6) be equipped with clutch housing (10) and can drive clutch housing (10) axial displacement's shift fork (11), clutch housing (10) and spline hub (6) between link to each other for the spline, shift fork (11) can drive clutch housing (10) past combine tooth (5) removal direction and make shift fork (10) and two mesh clutch housing (7) move the clutch housing (10) and the direction of engaging and two mesh teeth (7) make shift fork (10) move toward the clutch housing (10) mesh engagement tooth (7) and move .
2. The gearbox of the rotary cultivator as claimed in claim 1, wherein a first bevel gear (12) is fixedly connected to the input shaft (2), a second bevel gear (13) is fixedly connected to one end of the intermediate shaft (4), and the first bevel gear (12) is meshed with the second bevel gear (13).
3. The gearbox of the rotary cultivator as claimed in claim 1, wherein a needle bearing (14) is arranged between the first coupling tooth (5) and the intermediate shaft (4), an inner ring of the needle bearing (14) is tightly sleeved on the intermediate shaft (4), and an outer ring of the needle bearing (14) is embedded inside the first coupling tooth (5).
4. The gearbox of the rotary cultivator as claimed in claim 1, wherein a needle bearing (14) is arranged between the second coupling tooth (7) and the intermediate shaft (4), an inner ring of the needle bearing (14) is tightly sleeved on the intermediate shaft (4), and an outer ring of the needle bearing (14) is embedded in the inner side of the second coupling tooth (7).
5. The gearbox of the rotary cultivator as claimed in claim 1, 2, 3 or 4, wherein the outer side wall of one end of the first combination tooth (5) close to the joint sleeve (10) is provided with external splines, the inner side of the joint sleeve (10) is provided with spline grooves, and the external splines of the first combination tooth (5) can be meshed with the spline grooves of the joint sleeve (10).
6. The gearbox of the rotary cultivator as claimed in claim 1, 2, 3 or 4, wherein the outer side wall of the joint sleeve (10) is provided with a shifting fork groove (10 a) in a surrounding manner, and the outer end of the shifting fork (11) is embedded in the shifting fork groove (10 a).
7. The gearbox of the rotary cultivator as claimed in claim 1, 2, 3 or 4, wherein a connecting cylinder (15) is fixedly connected to one side of the box body (1), the input shaft (2) and the connecting cylinder (15) are coaxially arranged, and a bearing is arranged between the connecting cylinder (15) and the input shaft (2).
8. The gearbox of the rotary cultivator as claimed in claim 1, 2, 3 or 4, wherein the gear ratio of the first combination tooth (5) and the first output gear (8) is different from the gear ratio of the second combination tooth (7) and the second output gear (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223073050.1U CN218718533U (en) | 2022-11-18 | 2022-11-18 | Gear box of rotary cultivator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223073050.1U CN218718533U (en) | 2022-11-18 | 2022-11-18 | Gear box of rotary cultivator |
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| Publication Number | Publication Date |
|---|---|
| CN218718533U true CN218718533U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223073050.1U Active CN218718533U (en) | 2022-11-18 | 2022-11-18 | Gear box of rotary cultivator |
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| CN (1) | CN218718533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119123014A (en) * | 2024-09-12 | 2024-12-13 | 凯临钒机械(杭州)有限公司 | A through-shaft speed-changing rotary tiller gear box |
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2022
- 2022-11-18 CN CN202223073050.1U patent/CN218718533U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119123014A (en) * | 2024-09-12 | 2024-12-13 | 凯临钒机械(杭州)有限公司 | A through-shaft speed-changing rotary tiller gear box |
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