CN212318725U - Walking gearbox of miniature bending semi-feeding combine harvester - Google Patents
Walking gearbox of miniature bending semi-feeding combine harvester Download PDFInfo
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- CN212318725U CN212318725U CN202020948929.8U CN202020948929U CN212318725U CN 212318725 U CN212318725 U CN 212318725U CN 202020948929 U CN202020948929 U CN 202020948929U CN 212318725 U CN212318725 U CN 212318725U
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Abstract
The utility model discloses a walking gearbox of a miniature bending semi-feeding combine harvester, which comprises a shell and an input shaft vertically arranged on the shell, wherein the upper end of the input shaft is positioned outside the shell, the lower end of the input shaft is positioned in the shell, and the lower end of the input shaft is provided with a driving angle gear; the shell is provided with a transmission gear set and a rack height adjusting seat. The utility model discloses vertical arrangement is adopted to the input shaft, and power is from the top input gearbox, is provided with frame altitude mixture control seat on the gearbox shell simultaneously, makes miniature semi-feeding combine of bending's frame wholly set up on the shell of gearbox through frame altitude mixture control seat, and the shell of gearbox becomes the intermediate junction body for running gear and frame for miniature semi-feeding combine of bending's overall structure is more small and exquisite compact, and the lift adjustment of frame is simpler simultaneously. The left half shaft and the right half shaft are connected with the fourth speed change gear by the steel ball clutch, and the clutch is simple in structure and high in structural reliability.
Description
Technical Field
The utility model relates to a miniature combine technical field, in particular to miniature combine's rack construction.
Background
The walking device of the combine harvester comprises a walking wheel or a walking crawler belt and a gearbox for transmitting power to the walking wheel or the walking crawler belt. In the prior art, the types of gearboxes of the miniature combine harvester are more, and meanwhile, in order to meet the requirements of structures and functions of different combine harvesters, the structures of the gearboxes are continuously changed and improved.
For a miniature bending semi-feeding combine harvester, the frame of the harvester is required to be capable of integrally lifting so as to harvest rice with different heights, and meanwhile, the power transmission chain is required to be capable of self-adaptively adjusting while the height of the frame is changed; and the walking device is required to be capable of flexibly steering and have good ground adaptability, so that the reliability and stability of the miniature bending semi-feeding combine harvester in field walking are ensured.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a miniature half-feeding combine walking gearbox of bending to solve the altitude mixture control of frame and the technical problem that power transmission chain can self-adaptation adjustment when the frame height changes, and satisfy the technical problem that miniature half-feeding combine of bending exports power to running gear.
The utility model discloses miniature bending semi-feeding combine harvester walking gearbox, including the casing, still include the input shaft of vertical setting on the casing, the input shaft includes upper shaft section, lower shaft section and the universal joint who connects upper shaft section and lower shaft section, the lower extreme of upper shaft section is located the casing, and the upper end of upper shaft section is located outside the casing, be provided with the power input cover on the upper shaft section, power input cover and upper shaft section sliding fit on the axial, power input cover and upper shaft section fixed fit on the circumferencial direction;
the shell is further provided with a rack height adjusting seat, the rack height adjusting seat comprises a height adjusting guide frame vertically connected to the shell and a lead screw connecting plate arranged on the height adjusting guide frame, and a threaded hole used for connecting a lead screw is formed in the lead screw connecting plate.
Further, the lower end of the lower shaft section is provided with a driving angle gear;
further, the clutch is a steel ball clutch;
the left half shaft and the right half shaft respectively comprise a tooth groove section, a spring mounting section and a traveling device connecting section which are sequentially connected, tooth grooves are uniformly arranged on the outer surface of the tooth groove section, and a shaft hole which is sleeved on the third shaft and is in running fit with the third shaft is arranged in the middle of the tooth groove section;
the steel ball clutch comprises a steel ball, a spring and a clutch sleeve, ring sleeves are arranged on the end faces of two ends of the fourth speed change gear, radial holes are formed in the ring sleeves, and the steel ball is arranged in the radial holes; the inner hole of the clutch sleeve comprises a spring limiting section, a steel ball accommodating section and a steel ball pressing section which are sequentially connected; the spring is arranged on the spring mounting section, one end of the spring abuts against the end face of the tooth groove section, the other end of the spring abuts against the spring limiting section of the clutch sleeve inner hole, the steel ball press-in section is sleeved on the circular ring sleeve, and the steel ball press-in section sleeve is in sliding fit with the circular ring sleeve along the axis;
an annular check ring and a needle bearing are arranged on the traveling device connecting section, one end of the annular check ring is abutted against the shell, the other end of the annular check ring is abutted against the end face of the spring mounting section, and the outer circular face of the needle bearing is fixed on the shell;
the walking gearbox of the miniature bending semi-feeding combine harvester further comprises a shifting fork for shifting the clutch sleeve to move along the axial direction.
Further, the shift fork includes jaw, vertical round pin axle, first interior driving plate, the interior driving plate of second, horizontal round pin axle and outer driving plate, vertical round pin axle set up in the shell and with shell normal running fit, the one end of horizontal round pin axle is located outside the shell, the other end is located the shell, and horizontal round pin axle and shell normal running fit, outer driving plate is fixed and is served at the outer one of round pin axle position shell, first interior driving plate is fixed and is served at horizontal round pin axle position shell, the one end of driving plate is articulated with first interior driving plate in the second, the other end of driving plate is articulated with the jaw in the second, the jaw is fixed at vertical round pin epaxially.
Furthermore, a limiting pin used for connecting the traveling wheels is arranged on the traveling device connecting section.
The utility model has the advantages that:
1. the utility model discloses miniature half-feeding combine walking gearbox of bending through the sliding fit relation between power input cover and the input shaft, when adjusting the upper and lower high position of frame through the regulation seat, power transmission chain ability self-adaptation adjustment high position.
2. The utility model discloses miniature half-feeding combine walking gearbox of bending, the input shaft of its power adopts vertical arrangement, power is from the last gearbox of inputing of follow, be provided with frame altitude mixture control seat on the gearbox shell simultaneously, make miniature half-feeding combine's of bending frame whole set up on the shell of gearbox through frame altitude mixture control seat, the shell of gearbox becomes the intermediate junction body for running gear and frame, make miniature half-feeding combine's of bending overall structure more small and exquisite compactness, the lift adjustment of frame is simpler simultaneously.
3. The utility model discloses miniature half-feeding combine walking gearbox of bending, it adopts the steel ball clutch to be connected left semi-axis and right semi-axis and fourth change gear, clutch simple structure, and structural reliability is high.
Drawings
FIG. 1 is a schematic perspective view of a walking gearbox of a miniature bending semi-feeding combine harvester;
FIG. 2 is a perspective view of the internal structure of the walking gearbox;
FIG. 3 is a schematic structural view of a half shaft and steel ball clutch;
FIG. 4 is a schematic illustration of the steel ball clutch in a power connected state;
FIG. 5 is a schematic structural view of the half shaft;
FIG. 6 is a schematic perspective view of the fork;
FIG. 7 is a schematic view of the connection between the traveling gearbox and the wheeled traveling device;
FIG. 8 is a schematic view of the connection of the travel gearbox to the crawler attachment;
FIG. 9 is a schematic view of a walking gearbox on a miniature bending semi-feeding combine harvester;
fig. 10 is a schematic view of the connection between the traveling gearbox and the girder.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in the figure, the walking gearbox of the miniature bending semi-feeding combine harvester of the embodiment comprises a shell 1 and an input shaft 2 vertically arranged on the shell, wherein the input shaft comprises an upper shaft section 201, a lower shaft section 202 and a universal joint 203 for connecting the upper shaft section with the lower shaft section, the lower end of the upper shaft section is positioned in the shell, the upper end of the upper shaft section is positioned outside the shell, a power input sleeve 29 is arranged on the upper shaft section, the power input sleeve is in sliding fit with the upper shaft section in the axial direction, and the power input sleeve is fixedly matched with the upper shaft section in the circumferential direction; the power input sleeve is arranged in a gearbox of the miniature bending semi-feeding combine harvester.
The shell is further provided with a rack height adjusting seat, the rack height adjusting seat comprises a height adjusting guide frame 14 vertically connected to the shell and a lead screw connecting plate 15 arranged on the height adjusting guide frame, and a threaded hole 16 used for connecting a lead screw is formed in the lead screw connecting plate.
An adjusting sleeve 31 on a frame girder 30 is sleeved on the height adjusting guide frame 14, the adjusting sleeve 31 is driven by a worm gear mechanism 33 to move up and down to realize the up-and-down adjustment of the whole height of the harvester frame, and a gearbox 32 and other transmission mechanisms on the frame are self-adaptively adjusted up and down in the adjusting process.
In this embodiment, the lower end of the lower shaft section is provided with a driving horn gear 3. The walking gearbox of the miniature bending semi-feeding combine harvester further comprises a transmission gear set, the transmission gear set comprises a first shaft 4 arranged on the shell, a driven angle gear 5 arranged on the first shaft and meshed with the driving angle gear, a first speed change gear 6 arranged on the first shaft, a second shaft 7 arranged on the shell and parallel to the first shaft, a second speed change gear 8 arranged on the second shaft and meshed with the first speed change gear, a third speed change gear 9 arranged on the second shaft, a third shaft 10, a fourth speed change gear 11 arranged on the third shaft and meshed with the third speed change gear, a left half shaft 12 and a right half shaft 13, the left half shaft, the right half shaft and the third shaft are coaxially arranged, the left half shaft and the right half shaft are respectively in running fit with two ends of the third shaft, and the left half shaft and the right half shaft are respectively connected with the fourth speed change gear through clutches.
In this embodiment, the clutch is a steel ball clutch.
The left half shaft and the right half shaft respectively comprise a tooth socket section 17, a spring mounting section 18 and a traveling device connecting section 19 which are connected in sequence, tooth sockets are uniformly arranged on the outer surface of the tooth socket section, and a shaft hole which is sleeved on the third shaft and is in running fit with the third shaft is arranged in the middle of the tooth socket section.
The steel ball clutch comprises a steel ball 20, a spring 21 and a clutch sleeve 22, the end faces of two ends of the fourth speed change gear are provided with ring sleeves 23, the ring sleeves are provided with radial holes 24, and the steel ball is arranged in the radial holes; the inner hole of the clutch sleeve comprises a spring limiting section 221, a steel ball accommodating section 222 and a steel ball pressing section 223 which are connected in sequence; the spring is arranged on the spring mounting section, one end of the spring abuts against the end face of the tooth groove section, the other end of the spring abuts against the spring limiting section of the clutch sleeve inner hole, the steel ball press-in section is sleeved on the ring sleeve, and the steel ball press-in section sleeve is in sliding fit with the ring sleeve along the axis.
An annular check ring 25 and a needle bearing 26 are arranged on the traveling device connecting section, one end of the annular check ring is abutted against the shell, the other end of the annular check ring is abutted against the end face of the spring mounting section, and the outer circular face of the needle bearing is fixed on the shell.
The walking gearbox of the miniature bending semi-feeding combine harvester further comprises a shifting fork 27 used for shifting the clutch sleeve to move along the axial direction.
In this embodiment, the shift fork 27 includes the jaw 271, vertical pin 272, first interior driving plate 273, second interior driving plate 274, horizontal pin 275 and outer driving plate 276, vertical pin sets up on the shell and with shell normal running fit, the one end of horizontal pin is located outside the shell, the other end is located the shell, and horizontal pin and shell normal running fit, outer driving plate is fixed and is served at the outer one of round pin position in shell, first interior driving plate is fixed and is served at the horizontal pin position in the shell, the one end of driving plate is articulated with first interior driving plate in the second, the other end of driving plate is articulated with the jaw in the second, the jaw is fixed at vertical pin epaxially.
In the embodiment, the miniature bending semi-feeding combine harvester walking gearbox is characterized in that an input shaft of power is vertically arranged, the power is input into the gearbox from top to bottom, and meanwhile, a rack height adjusting seat is arranged on a gearbox shell, so that the miniature bending semi-feeding combine harvester is enabled to be integrally arranged on the shell of the gearbox through the rack height adjusting seat, and the shell of the gearbox becomes an intermediate connector of the walking device and the rack, so that the integral structure of the miniature bending semi-feeding combine harvester is smaller and more compact, and meanwhile, the lifting adjustment of the rack is simpler.
In the walking gearbox of the miniature bending semi-feeding combine harvester in the embodiment, the left half shaft and the right half shaft are connected with the fourth speed change gear by the steel ball clutch, when power needs to be cut off in work, the shifting fork is operated to push the clutch sleeve to the direction of the fourth speed change gear, the steel ball pressing section 223 on the clutch sleeve is moved away from the steel ball, the steel ball moves outwards along the radial direction under the action of inertial centrifugal force, part of the steel ball enters the steel ball containing section 222 in the clutch sleeve, and the steel ball is separated from the tooth groove section 17 of the left half shaft or/and the right half shaft, so that power cut-off is realized. When power needs to be connected, the shifting fork operating mechanism is loosened, the clutch sleeve resets under the action of the spring, the end face of the clutch sleeve leans against the end face of the annular retainer ring 25 again, the steel ball pressing section 223 extrudes the steel ball, and part of the steel ball enters the tooth grooves in the tooth groove section again to achieve power connection. When the harvester needs to turn, the shifting fork is used for controlling the steel ball clutch, and controlling power to be transmitted to the left half shaft and the right half shaft respectively, so that the turning and starting and stopping of the harvester are realized. The steel ball clutch is adopted in the embodiment, so that the reliability of power connection and disconnection is high, and the structure is simple.
In this embodiment, the traveling device connecting section is provided with a limit pin 28 for connecting the traveling wheel. The left and right travelling wheels are respectively sleeved on the travelling device connecting sections of the left half shaft and the right half shaft through sleeves, an adjusting gap adaptive to the unevenness of the ground is reserved between the sleeves and the shafts, and the limiting pins penetrate through the sleeves and the shafts in the radial direction. In specific implementation, the walking gearbox of the miniature bending semi-feeding combine harvester can be connected with a wheel type walking device and a crawler type walking device.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (5)
1. Miniature half-feeding combine walking gearbox of bending, including the casing, its characterized in that:
the power input device comprises a shell, and is characterized by further comprising an input shaft vertically arranged on the shell, wherein the input shaft comprises an upper shaft section, a lower shaft section and a universal joint for connecting the upper shaft section with the lower shaft section; the power input sleeve is arranged in a gearbox of the miniature bending semi-feeding combine harvester;
the shell is further provided with a rack height adjusting seat, the rack height adjusting seat comprises a height adjusting guide frame vertically connected to the shell and a lead screw connecting plate arranged on the height adjusting guide frame, and a threaded hole used for connecting a lead screw is formed in the lead screw connecting plate.
2. The walking gearbox of miniature bending semi-feeding combine harvester according to claim 1, characterized in that: the lower end of the lower shaft section is provided with a driving angle gear;
the miniature half-feeding combine harvester walking gearbox of bending still includes transmission gear group, transmission gear group is including setting up the primary shaft on the casing, set up on the primary shaft with the driven horn gear of initiative horn gear meshing, set up the first change gear on the primary shaft, set up on the casing with the secondary shaft that the primary shaft is parallel, set up on the secondary shaft with the second change gear of first change gear meshing, set up on the secondary shaft third change gear, third axle, set up on the third axle with the fourth change gear of third change gear meshing, left half axle and right half axle, left half axle, right half axle and third axle are coaxial to be arranged, and left half axle and right half axle respectively with the both ends normal running fit of third axle, left half axle and right half axle are connected with fourth change gear through the clutch respectively.
3. The walking gearbox of miniature bending semi-feeding combine harvester according to claim 2, characterized in that: the clutch is a steel ball clutch;
the left half shaft and the right half shaft respectively comprise a tooth groove section, a spring mounting section and a traveling device connecting section which are sequentially connected, tooth grooves are uniformly arranged on the outer surface of the tooth groove section, and a shaft hole which is sleeved on the third shaft and is in running fit with the third shaft is arranged in the middle of the tooth groove section;
the steel ball clutch comprises a steel ball, a spring and a clutch sleeve, ring sleeves are arranged on the end faces of two ends of the fourth speed change gear, radial holes are formed in the ring sleeves, and the steel ball is arranged in the radial holes; the inner hole of the clutch sleeve comprises a spring limiting section, a steel ball accommodating section and a steel ball pressing section which are sequentially connected; the spring is arranged on the spring mounting section, one end of the spring abuts against the end face of the tooth groove section, the other end of the spring abuts against the spring limiting section of the clutch sleeve inner hole, the steel ball press-in section is sleeved on the circular ring sleeve, and the steel ball press-in section sleeve is in sliding fit with the circular ring sleeve along the axis;
an annular check ring and a needle bearing are arranged on the traveling device connecting section, one end of the annular check ring is abutted against the shell, the other end of the annular check ring is abutted against the end face of the spring mounting section, and the outer circular face of the needle bearing is fixed on the shell;
the walking gearbox of the miniature bending semi-feeding combine harvester further comprises a shifting fork for shifting the clutch sleeve to move along the axial direction.
4. The walking gearbox of miniature bending semi-feeding combine harvester according to claim 3, characterized in that: the shifting fork comprises a fork head, a vertical pin shaft, a first inner transmission plate, a second inner transmission plate, a transverse pin shaft and an outer transmission plate, wherein the vertical pin shaft is arranged on the inner side of the shell and is in running fit with the shell, one end of the transverse pin shaft is arranged on the outer side of the shell, the other end of the transverse pin shaft is arranged on the inner side of the shell, the transverse pin shaft is in running fit with the shell, the outer transmission plate is fixed at one end of the pin shaft, which is arranged on the outer side of the shell, of the outer transmission plate, the first inner transmission plate is fixed at one end of the transverse pin shaft, one end of the second inner transmission plate is hinged with the first inner transmission plate, the other end of the.
5. The walking gearbox of miniature bending semi-feeding combine harvester according to claim 3, characterized in that: and a limiting pin used for connecting the traveling wheels is arranged on the traveling device connecting section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020948929.8U CN212318725U (en) | 2020-05-29 | 2020-05-29 | Walking gearbox of miniature bending semi-feeding combine harvester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020948929.8U CN212318725U (en) | 2020-05-29 | 2020-05-29 | Walking gearbox of miniature bending semi-feeding combine harvester |
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| Publication Number | Publication Date |
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| CN212318725U true CN212318725U (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020948929.8U Active CN212318725U (en) | 2020-05-29 | 2020-05-29 | Walking gearbox of miniature bending semi-feeding combine harvester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520461A (en) * | 2020-05-29 | 2020-08-11 | 何嘉俊 | Walking gearbox of miniature bending semi-feeding combine harvester |
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2020
- 2020-05-29 CN CN202020948929.8U patent/CN212318725U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520461A (en) * | 2020-05-29 | 2020-08-11 | 何嘉俊 | Walking gearbox of miniature bending semi-feeding combine harvester |
| CN111520461B (en) * | 2020-05-29 | 2023-09-26 | 何嘉俊 | Walking gearbox of miniature bending semi-feeding combine harvester |
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