CN110617289A - Left-right steering control mechanism - Google Patents
Left-right steering control mechanism Download PDFInfo
- Publication number
- CN110617289A CN110617289A CN201910792638.6A CN201910792638A CN110617289A CN 110617289 A CN110617289 A CN 110617289A CN 201910792638 A CN201910792638 A CN 201910792638A CN 110617289 A CN110617289 A CN 110617289A
- Authority
- CN
- China
- Prior art keywords
- clutch
- gear
- steering control
- auxiliary
- shifting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
- F16D67/02—Clutch-brake combinations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
Abstract
The invention discloses a left-right steering control mechanism, which comprises a left-right steering rod, and a main clutch input gear, a left clutch gear and a right clutch gear which are sleeved on the left-right steering rod, wherein a left clutch mechanism is arranged between the left clutch gear and the main clutch input gear; the left and right steering rods are also provided with a left brake sleeve and a left brake disc which are matched with each other, and a right brake sleeve and a right brake disc which are both in a friction plate clutch braking mode; the jaw clutch mechanism and the friction plate are combined for clutch and brake, so that the purpose of controlling the steering of the left and right power output mechanisms is achieved, and the jaw clutch mechanism is simple in structure, simple and flexible to operate and convenient to maintain.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a left-right steering control mechanism of an agricultural machinery gearbox.
Background
Agricultural machinery is called agricultural machinery for short, the agricultural machinery is generally powered by a gasoline engine or a diesel engine, then various functional modules such as a harvesting device, a seeding device and the like are driven in the advancing process to carry out corresponding agricultural operation, the agricultural machinery has wide application in the fields of tillage in water and dry fields, horticulture, micro-tillage in greenhouses, precision seeding, fertilization and the like, and a gearbox on the agricultural machinery plays an important role in the quality and the efficiency of micro-tillage, seeding and fertilization. At present, the gearbox steering structures on agricultural machines on the market generally comprise the following parts: 1. the differential mechanism and the friction type brake mechanism perform left and right steering, the structure is complex, and the cost is high; 2. the steering is performed by a single jaw clutch structure, so that the operation is not flexible and the use performance is poor; 3. the single friction plate braking structure is used for steering, the operation is not flexible, and the service life is short. In addition, most of gearboxes used in agricultural machinery on the market are not provided with an auxiliary output mechanism or the auxiliary output is not provided with a reverse rotation protection mechanism, so that the damage of a transmission structure is easily caused and the injury risk of personnel is brought.
Therefore, the development of a left-right steering control mechanism of an agricultural machine gearbox is dedicated to the technical field.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a left and right steering control mechanism for an agricultural machinery gearbox.
In order to achieve the purpose, the invention provides a left-right steering control mechanism which comprises a left-right steering rod, and a main clutch input gear, a left clutch gear and a right clutch gear which are sleeved on the left-right steering rod, wherein a left clutch mechanism is arranged between the left clutch gear and the main clutch input gear, a right clutch mechanism is arranged between the right clutch gear and the main clutch input gear, and the left clutch gear and the right clutch gear are relatively independent.
The main clutch input gear and the left clutch gear are respectively sleeved on the middle part and the left end of the left steering rod and the right steering rod, and the right clutch gear is sleeved on the right sleeve.
The left clutch mechanism comprises a left steering control clutch tooth arranged on one side of the left clutch gear facing the main clutch input gear, and a left steering control clutch groove for accommodating the left steering control clutch tooth is arranged on one side of the main clutch input gear; the right clutch mechanism comprises a right steering control clutch tooth arranged on one side of the right clutch gear facing the main clutch input gear, and the other side of the main clutch input gear is provided with a right steering control clutch groove for accommodating the right steering control clutch tooth.
The left and right steering control mechanism further comprises a left brake sleeve arranged on the left side of the left clutch gear, and the left end of the left clutch gear is further sleeved with a left brake disc matched with the left brake sleeve; the middle part of the left clutch gear is also provided with a left shifting groove, and a left clutch shifting fork is radially embedded into the left shifting groove; the left and right steering control mechanism further comprises a right brake sleeve arranged on the right side of the right clutch gear, and a right brake disc matched with the right brake sleeve is further sleeved at the right end of the right clutch gear; the middle part of the right clutch gear is also provided with a right shifting groove, and a right clutch shifting fork is radially embedded into the right shifting groove.
The lower end of the left clutch shifting fork is fixedly connected with a left shifting rod which is vertical to the direction of the left steering rod and the right steering rod, and the upper end of the left clutch shifting fork is connected with a left shifting sheet which is embedded into the left shifting groove; the lower end of the right clutch shifting fork is fixedly connected with a right shifting rod which is vertical to the direction of the left steering rod and the right steering rod, and the upper end of the right clutch shifting fork is connected with a right shifting sheet which is embedded into the right shifting groove.
The invention has the beneficial effects that: the left and right steering control mechanism comprises a left and right steering rod, and a main clutch input gear, a left clutch gear and a right clutch gear which are sleeved on the left and right steering rod, wherein a left clutch mechanism is arranged between the left clutch gear and the main clutch input gear, a right clutch mechanism is arranged between the right clutch gear and the main clutch input gear, the left clutch gear and the right clutch gear are relatively independent, and the left clutch mechanism and the right clutch mechanism are jaw clutch mechanisms; the left and right steering rods are also provided with a left brake sleeve and a left brake disc which are matched with each other, and a right brake sleeve and a right brake disc which are both in a friction plate clutch braking mode; the jaw clutch mechanism and the friction plate are combined for clutch and brake, so that the purpose of controlling the steering of the left and right power output mechanisms is achieved, and the jaw clutch mechanism is simple in structure, simple and flexible to operate and convenient to maintain.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a structural cross-sectional view of the present invention;
FIG. 4 is a schematic view of the overall construction of the steering gearbox;
FIG. 5 is one of the schematic internal structural views of the steering gearbox;
FIG. 6 is a second schematic view of the internal structure of the steering gear box;
FIG. 7 is a schematic structural view of a change speed gear set in the steering transmission;
FIG. 8 is an exploded view of a portion of a transmission shift gear set in the steering transmission;
FIG. 9 is a schematic structural view of the left and right drive gear sets in the steering transmission;
FIG. 10 is a schematic structural view of a secondary output protection mechanism and a secondary output mechanism in the steering transmission;
FIG. 11 is a schematic structural view of a secondary output mechanism in the steering transmission;
FIG. 12 is one of the partially exploded schematic views of the secondary output mechanism in the steering transmission;
FIG. 13 is a second partially exploded view of the secondary output mechanism of the steering transmission;
FIG. 14 is a cross-sectional view of the assembled structure of FIG. 13;
FIG. 15 is a schematic structural view of a sub-output protection mechanism in the steering transmission;
fig. 16 is an exploded schematic view of a sub-output protection mechanism in the steering transmission.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 3, a left-right steering control mechanism comprises a left-right steering rod 400, and a main clutch input gear 401, a left clutch gear 402 and a right clutch gear 403 sleeved on the left-right steering rod 400, wherein the left clutch mechanism is arranged between the left clutch gear 402 and the main clutch input gear 401, the right clutch mechanism is arranged between the right clutch gear 403 and the main clutch input gear 401, the left clutch gear 402 and the right clutch gear 403 are relatively independent,
the main clutch input gear 401 and the left clutch gear 402 are respectively sleeved on the middle part and the left end of the left and right steering rod 400, and the right clutch gear 403 is sleeved on the right sleeve 404.
The left clutch mechanism comprises left steering control clutch teeth 405 arranged on one side of the left clutch gear 402 facing the main clutch input gear 401, and one side of the main clutch input gear 401 is provided with a left steering control clutch groove 406 for accommodating the left steering control clutch teeth 405; the right clutch mechanism comprises right steering control clutch teeth 412 arranged on one side of the right clutch gear 403 facing the main clutch input gear 401, and the other side of the main clutch input gear 401 is provided with a right steering control clutch groove accommodating the right steering control clutch teeth 412.
The left-right steering control mechanism further comprises a left brake sleeve 407 arranged on the left side of the left clutch gear 402, and a left brake disc 408 matched with the left brake sleeve 407 is sleeved at the left end of the left clutch gear 402; the middle part of the left clutch gear 402 is also provided with a left shifting groove 410, the left shifting groove 410 is radially embedded with a left clutch shifting fork 411, and a left friction plate which is matched with the left brake disc 408 is arranged in the left brake sleeve 407; the left-right steering control mechanism further comprises a right brake sleeve 413 arranged on the right side of the right clutch gear 403, a right brake disc 414 matched with the right brake sleeve 413 is further sleeved at the right end of the right clutch gear 403, and a right friction plate matched with the right brake disc 414 is arranged in the right brake sleeve 413; the middle part of the right clutch gear 403 is also provided with a right toggle groove 415, and the right toggle groove 415 is radially embedded with a right clutch shift fork 416.
The lower end of the left clutch fork 411 is fixedly connected with a left poke rod 417 which is vertical to the direction of the left and right steering rods 400, and the upper end of the left clutch fork is connected with a left poke sheet 418 which is embedded into the left poke groove 410; the lower end of the right clutch shift fork 416 is fixedly connected with a right shift rod 419 which is vertical to the direction of the left and right steering rods 400, and the upper end is connected with a right shift piece 420 which is embedded into the right shift groove 415.
The left and right steering control mechanism has the working principle that: taking left steering control as an example, the left clutch fork 411 is shifted transversely, the main clutch input gear 401 is separated from the left clutch gear 402, the left brake disc 408 is in contact friction with the left friction plate in the left brake sleeve 407, so that the left clutch gear 402 stops rotating, the corresponding left power output shaft 601 does not have power output, and meanwhile, the right clutch gear 403 continuously rotates to cause the right power output shaft 602 to rotate, so that the left wheel connected with the left power output shaft 601 is static, the right wheel connected with the right power output shaft 602 rotates, and left steering is realized.
The left brake sleeve and the left brake disc, and the right brake sleeve and the right brake disc in the left and right steering control mechanism of the gearbox are in a friction plate clutch braking mode; the left clutch mechanism and the right clutch mechanism are both jaw clutch mechanisms; the steering control device adopts a mode of combining a jaw clutch mechanism and a friction plate clutch brake, thereby achieving the purpose of steering control, and has the advantages of simple structure, low cost, simple and flexible operation, long service cycle and convenient maintenance.
The invention is applied to a steering gearbox of an agricultural machine, and the specific structure of the steering gearbox is as follows:
as shown in fig. 1 to 16, a steering transmission case comprises a case 100, wherein a power input shaft 200 and a speed change gear shift gear set connected with the power input shaft 200 are arranged on the case 100, a left and right steering control mechanism, a left and right transmission gear set, a left and right power output mechanism, an auxiliary output protection mechanism and an auxiliary output mechanism are further arranged on the case 100, the speed change gear shift gear set, the left and right steering control mechanism, the left and right transmission gear set and the left and right power output mechanism are sequentially connected, and the left and right transmission gear sets are further sequentially connected with the auxiliary output protection mechanism and the auxiliary output mechanism; the left and right power output mechanisms are provided with a left power output shaft 601 and a right power output shaft 602 which are respectively linked with the power input shaft 200, the auxiliary output mechanism is provided with an auxiliary output power output shaft 800 which can be linked with the power input shaft 200, and the auxiliary output protection mechanism is provided with a reverse protection device linked with the auxiliary output power output shaft 800; the power input shaft 200 is used for connecting a rotating shaft of an internal combustion engine, the power on the power input shaft 200 is evenly distributed to a left power output shaft 601 and a right power output shaft 602, the left power output shaft 601 and the right power output shaft 602 are respectively connected with a left traveling wheel and a right traveling wheel, a left-right steering control mechanism respectively controls the rotating speed of the left power output shaft 601 and the rotating speed of the right power output shaft 602, and when the rotating speeds of the left power output shaft 601 and the right power output shaft 602 are different, the rotating speeds of the left traveling wheel and the right traveling wheel are different, so that the left or right steering can be carried out; meanwhile, the auxiliary output power output shaft 800 is connected with an agricultural operation device such as a cutting knife, and power on the power input shaft 200 is transmitted to the auxiliary output power output shaft 800 through the left and right transmission gear sets, so that agricultural operation such as cutting can be performed while walking; the reverse protection device is used for preventing the auxiliary output power output shaft 800 from reversing, protecting the auxiliary output mechanism and avoiding damage caused by reversing; the auxiliary output mechanism further comprises an auxiliary clutch mechanism, so that the auxiliary output power output shaft 800 can be linked with the power input shaft 200 or not linked with the power input shaft 200, and the requirement of independent operation is met.
In this embodiment, the speed-changing gear-shifting gear set includes a gear-shifting output gear 310 fixed relative to the power input shaft 200, the left-right steering control mechanism includes a left-right steering rod 400, and a main clutch input gear 401, a left clutch gear 402 and a right clutch gear 403 sleeved on the left-right steering rod 400, the main clutch input gear 401 is engaged with the gear-shifting output gear 310, a left clutch mechanism is disposed between the left clutch gear 402 and the main clutch input gear 401, a right clutch mechanism is disposed between the right clutch gear 403 and the main clutch input gear 401, and the left clutch gear 402 and the right clutch gear 403 are relatively independent.
The left power output shaft 601 is relatively fixed with the left clutch gear 402, and the right power output shaft 602 is relatively fixed with the right clutch gear 403; the left and right transmission gear sets are provided with a left auxiliary transmission output gear 501 fixed opposite to the left clutch gear 402, and a right auxiliary transmission output gear 502 fixed opposite to the right clutch gear 403.
The speed change gear set comprises a first gear shift shaft 301 and a second gear shift shaft 302, a gear shift output gear 310 is fixedly sleeved on the second gear shift shaft 302, a first power gear 202 and a second power gear 203 are sleeved on the power input shaft 200, and a first gear shift input gear 303 and a second gear shift input gear 304 which are respectively meshed with the first power gear 202 and the second power gear 203 are fixedly installed on the first gear shift shaft 301; the first power gear 202 and the second power gear 203 are connected through a first gear shifting sleeve, an axial first gear shifting rod 305 is installed on the box body 100, a first gear shifting fork 306 for clamping the first gear shifting sleeve is installed on the first gear shifting rod 305, two clamp springs respectively located on two sides of the first power gear 202 and the second power gear 203 are fixedly connected to two ends of the power input shaft 200, and the two clamp springs are used for limiting axial moving distances of the first power gear 202 and the second power gear 203.
The first gear shift shaft 301 is further fixedly provided with a first gear shift transmission gear 307 and a second gear shift transmission gear 308, the first gear shift transmission gear 307 and the second gear shift transmission gear 308 are connected through a second gear shift sleeve, the box 100 is provided with an axial second gear shift lever 309, and the second gear shift lever 309 is provided with a second gear shift fork 311 clamping the second gear shift sleeve.
A third shift transmission gear 312 and a fourth shift transmission gear 313 which are respectively meshed with the first shift transmission gear 307 and the second shift transmission gear 308 are fixedly installed on the second shift shaft 302, a first reverse gear 314 and a second reverse gear 315 are movably sleeved on the second shift shaft 302, and one sides of the third shift transmission gear 312 and one side of the fourth shift transmission gear 313 are fixedly connected, so that the third shift transmission gear 312 and the fourth shift transmission gear 313 rotate synchronously.
The third shift transmission gear 312 and the fourth shift transmission gear 313 are fixedly connected to one end of the second shift shaft 302 in a radial direction by engaging internal and external teeth, the shift output gear 310 is fixedly connected to the other end of the second shift shaft 302 in a radial direction by engaging internal and external teeth, and the first reverse gear 314 and the second reverse gear 315 are slidably sleeved on the middle portion of the second shift shaft 302.
The speed-changing gear-shifting gear set has 6 gears, wherein the first power gear 202 can only be meshed with the first gear-shifting input gear 303, the second power gear 203 can be meshed with the second gear-shifting input gear 304 or the first reverse gear 314, the second gear-shifting transmission gear 308 is only meshed with the fourth gear-shifting transmission gear 313, the first gear-shifting transmission gear 307 is only meshed with the third gear-shifting transmission gear 312, different gear meshes are selected to be arranged and combined under the action of axially shifting the first gear-shifting fork 306 and the second gear-shifting fork 311, the 6 gears can be freely switched, and the output speed and the torsion of the reversing gearbox can be adjusted to meet different traveling environments and working requirements.
The left and right steering control mechanism further comprises a right sleeve 404 sleeved at the right end of the left and right steering rod 400, a main clutch input gear 401 and a left clutch gear 402 are respectively sleeved at the middle part and the left end of the left and right steering rod 400, and a right clutch gear 403 is sleeved on the right sleeve 404; the left clutch mechanism comprises left steering control clutch teeth 405 arranged on one side of the left clutch gear 402 facing the main clutch input gear 401, and one side of the main clutch input gear 401 is provided with a left steering control clutch groove 406 for accommodating the left steering control clutch teeth 405; the left-right steering control mechanism further comprises a left brake sleeve 407 arranged on the left side of the left clutch gear 402, the left end of the left clutch gear 402 is further sleeved with a left brake disc 408 matched with the left brake sleeve 407, and a left friction disc matched with the left brake disc 408 is arranged in the left brake sleeve 407; the middle part of the left clutch gear 402 is also provided with a left toggle groove 410, and the left toggle groove 410 is radially embedded with a left clutch shifting fork 411.
The lower end of the left clutch fork 411 is fixedly connected with a left poke rod 417 which is vertical to the direction of the left and right steering rods 400, and the upper end of the left clutch fork is connected with a left poke sheet 418 which is embedded into the left poke groove 410; the left poke rod 417 is provided with an axial left rotation stopping hole 421, a left rotation stopping rod 422 adapted to the left rotation stopping hole 421 is embedded in the left rotation stopping hole 421, one end of the left rotation stopping rod 422 extending out of the left rotation stopping hole 421 is connected with a left limiting nut 423 through a thread, and the other end of the left rotation stopping rod 422 is connected with a left limiting shaft sleeve 424; the left shifting block 418 is provided with two symmetrical left clutch gears 402 clamped from two sides of the left shifting groove 410, the top of the left clutch shifting fork 411 is provided with two symmetrical left mounting pins 425, and the left shifting block 418 is fixedly sleeved on the left mounting pins 425.
A left brake disc gear sleeve 431 is arranged on the left clutch gear 402 at the left end of the left clutch shifting fork 411 in an extending mode, left friction teeth 432 are arranged on the surface of the left brake disc gear sleeve 431, a left brake disc 408 is sleeved on the left friction teeth 432, an axial left spring installation cavity 433 is arranged inside the left brake disc gear sleeve 431, a left inner spring washer 434 is installed at the bottom of the left spring installation cavity 433, a left outer spring washer 435 is installed at the left end of the left and right steering rod 400, a left spring 436 sleeved on the left and right steering rod 400 and clamped between the left inner spring washer 434 and the left outer spring washer 435 is installed in the left spring installation cavity 433, a left clamp spring 437 is installed at the left end of the left and right steering rod 400, the axial outer side of the left outer spring washer is abutted on the left clamp spring 437, and a left bearing 446 is further installed between the left end of the left and right steering rod 400 and the left brake sleeve 407.
The right clutch mechanism comprises right steering control clutch teeth 412 arranged on one side of the right clutch gear 403 facing the main clutch input gear 401, and a right steering control clutch groove for accommodating the right steering control clutch teeth 412 is arranged on the other side of the main clutch input gear 401; the left-right steering control mechanism further comprises a right brake sleeve 413 arranged on the right side of the right clutch gear 403, a right brake disc 414 matched with the right brake sleeve 413 is further sleeved at the right end of the right clutch gear 403, and a right friction plate matched with the right brake disc 414 is arranged in the right brake sleeve 413; the middle part of the right clutch gear 403 is also provided with a right toggle groove 415, and the right toggle groove 415 is radially embedded with a right clutch shift fork 416.
The lower end of the right clutch shifting fork 416 is fixedly connected with a right shifting rod 419 which is vertical to the direction of the left and right steering rods 400, and the upper end is connected with a right shifting piece 420 which is embedded into the right shifting groove 415; the right poke rod 419 is provided with an axial right rotation stopping hole 426, a right rotation stopping rod 427 which is matched with the right rotation stopping hole 426 is embedded in the right rotation stopping hole 426, one end of the right rotation stopping rod 427, which extends out of the right rotation stopping hole 426, is in threaded connection with a right limiting nut 428, and the other end of the right rotation stopping rod 427 is connected with a right limiting shaft sleeve 429; the right shifting piece 420 is provided with two symmetrical right shifting pieces and clamps the right clutch gear 403 from two sides of the right shifting groove 415, the top of the right clutch shifting fork 416 is provided with two symmetrical right mounting pins 430, and the right shifting piece 420 is fixedly sleeved on the right mounting pins 430.
A right brake disc gear sleeve 438 extends from the right end of the right clutch shift fork 416 on the right clutch gear 403, right friction teeth 439 are arranged on the surface of the right brake disc gear sleeve 438, the right brake disc 414 is sleeved on the right friction teeth 439, an axial right spring installation cavity 440 is arranged inside the right brake disc gear sleeve 438, a right inner pressure spring washer 441 is installed at the bottom of the right spring installation cavity 440, a right outer pressure spring washer 442 is installed at the right end of the left and right steering rod 400, a right spring 443 which is sleeved on the right sleeve 404 and clamped between the right inner pressure spring washer 441 and the right outer pressure spring washer 442 is installed in the right spring installation cavity 440, a right snap spring 444 is installed at the right end of the left and right steering rod 400, the axial outer side of the right outer pressure spring washer 442 abuts against the right snap spring 444, and a right bearing 445 is also installed between the right end of the left and right steering rod 400 and the right brake sleeve.
The working principle of the left-right steering control mechanism is as follows: taking left steering control as an example, the left clutch fork 411 is shifted transversely, the main clutch input gear 401 is separated from the left clutch gear 402, the left brake disc 408 is in contact friction with the left friction plate in the left brake sleeve 407, so that the left clutch gear 402 stops rotating, the corresponding left power output shaft 601 does not have power output, and meanwhile, the right clutch gear 403 continuously rotates to cause the right power output shaft 602 to rotate, so that the left wheel connected with the left power output shaft 601 is static, the right wheel connected with the right power output shaft 602 rotates, and left steering is realized.
The left and right steering control mechanism of the gearbox adopts a mode of combining a jaw clutch mechanism and a friction plate clutch brake, so that the purpose of steering control is achieved.
The left and right transmission gear sets comprise a first transmission rod 503 and a second transmission rod 504, and a left auxiliary transmission output gear 501 and a right auxiliary transmission output gear 502 are respectively arranged at two ends of the second transmission rod 504 close to the middle part; the left end of the first transmission rod 503 is sleeved with a left transmission input gear 505 and a first left transition gear 506, and the axial right opposite side of the left transmission input gear 505 and the first left transition gear 506 is fixedly connected; the right end of the first transmission rod 503 is sleeved with a right transmission input gear 507 and a first right transition gear 508, and the right transmission input gear 507 and the axial right opposite side of the first right transition gear 508 are fixedly connected; a second left transition gear 509 fixedly connected with the left auxiliary transmission output gear 501 is further sleeved on the second transmission rod 504, and a second right transition gear 510 fixedly connected with the right auxiliary transmission output gear 502 is further sleeved on the second transmission rod 504; the left clutch gear 402 is engaged with the left transmission input gear 505, and the right clutch gear 403 is engaged with the right transmission input gear 507.
The left and right power output mechanism comprises an output pipe 603, one end of the left power output shaft 601 and one end of the right power output shaft 602 are respectively inserted into the output pipe 603 from the left and right ends axially, the left power output shaft 601 is fixedly connected with a left power gear 604 meshed with a second left transition gear 509, and the right power output shaft 602 is fixedly connected with a right power gear 605 meshed with a second right transition gear 510.
Taking left wheel transmission as an example, the path for sequentially transmitting the power output and transmitted by the left and right steering control mechanisms to the left and right transmission gear sets and the left and right power output mechanisms is as follows: the left clutch gear 402, the left transmission input gear 505, the first left transition gear 506, the left auxiliary transmission output gear 501 and the second left transition gear 509 are not described again because the rotating mechanisms of the left and right wheels are symmetrically arranged, and the path of the left wheel transmission is similar to that of the left wheel transmission.
The auxiliary output protection mechanism comprises an auxiliary output protection rotating shaft 700; the auxiliary output protection mechanism is provided with a left protection gear 701 which is sleeved on the auxiliary output protection rotating shaft 700 and is meshed with the left auxiliary transmission output gear 501, and a right protection gear 702 which is sleeved on the auxiliary output protection rotating shaft 700 and is meshed with the right auxiliary transmission output gear 502;
a left auxiliary protection separation claw 703 and a right auxiliary protection separation claw 704 which are respectively positioned at two ends of the auxiliary output protection rotating shaft 700 are radially and fixedly connected to the auxiliary output protection rotating shaft 700, and an auxiliary output gear 705 which is positioned in the middle of the auxiliary output protection rotating shaft 700 is radially and fixedly connected to the auxiliary output protection rotating shaft 700; the reverse protection device comprises a first positive inclined plane abutting block 706 annularly arranged on one surface of the left auxiliary protection separation claw 703, and a first reverse inclined plane abutting block 707 opposite to the first positive inclined plane abutting block 706 is arranged on one surface of the left protection gear 701; one side of the right auxiliary protection separation claw 704 is provided with a second circumferential right inclined plane abutting block 708, and one side of the right protection gear 702 is provided with a second reverse inclined plane abutting block 709 which is opposite to the second right inclined plane abutting block 708;
further, one end of the first positive inclined plane abutting block 706 is provided with a first positive inclined plane 710, the other end is provided with a first abutting surface 711 perpendicular to the surface of the first positive inclined plane abutting block 706, and the first reverse inclined plane abutting block 707 is provided with a first reverse inclined plane 712 and a second abutting surface 713 respectively corresponding to the first positive inclined plane 710 and the first abutting surface 711; one end of the second positive inclined plane resisting block 708 is provided with a second positive inclined plane 714, the other end is provided with a third resisting surface 715 perpendicular to the surface of the second positive inclined plane resisting block 708, and the second reverse inclined plane resisting block 709 is provided with a second reverse inclined plane and a fourth resisting surface respectively matched with the second positive inclined plane 714 and the third resisting surface 715.
The left end of the auxiliary output protection rotating shaft 700 is further sleeved with a left protection spring 716 and a right protection spring 717, the left protection spring 716 is axially clamped between the left end of the left auxiliary protection separation claw 703 and the inner side wall of the box body 100, the right protection spring 717 is axially clamped between the right end of the right auxiliary protection separation claw 704 and the inner side wall of the box body 100, the left protection spring 716 provides elastic force close to the left protection gear 701 for the left auxiliary protection separation claw 703, and the right protection spring 717 provides elastic force close to the right protection gear 702 for the right auxiliary protection separation claw 704.
The working principle of the auxiliary output protection mechanism is as follows: when the power output by the power input shaft 200 is transmitted in sequence through the speed change gear set, the left and right steering control mechanism and the left and right transmission gear sets and pushes the left protection gear 701 and the right protection gear 702 to rotate forward, the auxiliary output protection rotating shaft 700 rotates forward along with the power input and output shaft, the first contact surface 711 and the second contact surface 713 are in contact with each other, the third contact surface 715 and the fourth contact surface are in contact with each other, the left auxiliary protection separating claw 703 and the right auxiliary protection separating claw 704 are driven to rotate forward, the auxiliary output protection rotating shaft 700 is pushed, the auxiliary output gear 705 is pushed to rotate forward, the auxiliary output gear 705 in the forward rotation transmits the power to the auxiliary output mechanism, the auxiliary output power output shaft 800 in the auxiliary output mechanism is driven to rotate, and the linkage of the power input shaft 200 and the auxiliary output power output shaft 800 is realized; when the gearbox shifts gears to cause the left protection gear 701 and the right protection gear 702 to rotate reversely, the first positive inclined plane 710 and the first reverse inclined plane 712 contact with each other and move and are separated, and the second positive inclined plane 714 and the second reverse inclined plane contact with each other and move and are separated, so that the left auxiliary protection separation claw 703, the right auxiliary protection separation claw 704, the auxiliary output protection rotating shaft 700 and the auxiliary output gear 705 cannot be powered to rotate, the auxiliary output power output shaft 800 is static, and damage caused by reverse rotation of the auxiliary output power output shaft 800 is avoided.
The auxiliary output mechanism comprises an auxiliary output gear 801 which is sleeved on the auxiliary output power output shaft 800 and is fixed relative to the auxiliary output gear 705, an auxiliary output clutch claw 802 is fixedly sleeved on the auxiliary output power output shaft 800, and an auxiliary clutch mechanism is arranged between the auxiliary output gear 801 and the auxiliary output clutch claw 802.
The auxiliary output mechanism further comprises a mounting bracket 803 used for mounting the auxiliary output power output shaft 800, an auxiliary input rotating shaft 804 parallel to the auxiliary output power output shaft 800 is further mounted on the mounting bracket 803, the mounting bracket 803 is composed of a left mounting bracket 8031 and a right mounting bracket 8032 which are respectively positioned at two ends, the auxiliary output power output shaft 800 and the auxiliary input rotating shaft 804 are clamped and mounted between the left mounting bracket 8031 and the right mounting bracket 8032, an auxiliary power input gear 805 meshed with the auxiliary output gear 705 is fixedly sleeved on the auxiliary input rotating shaft 804, and an auxiliary output transmission gear 806 meshed with the auxiliary power output gear 801 is fixedly connected to one side of the auxiliary power input gear 805; the auxiliary output power output shaft 800 is also sleeved with an auxiliary output clutch return spring 811 positioned between the right end part of the auxiliary output clutch claw 802 and the right mounting bracket 8032; a left auxiliary output bearing 827 is further installed between the left mounting bracket 8031 and the end of the auxiliary power output gear 801, a right auxiliary output bearing 828 sleeved on the auxiliary output power output shaft 800 is further installed between the right mounting bracket 8032 and the auxiliary output clutch return spring 811, and a right auxiliary output sealing ring 829 sleeved on the auxiliary output power output shaft 800 is further installed between the right auxiliary output bearing 828 and the right mounting bracket 8032; a secondary input bearing 831 sleeved on the secondary input rotating shaft 804 is further installed between the secondary output transmission gear 806 and the left mounting bracket 8031, a limiting shaft sleeve 832 is further fixedly sleeved on the secondary input rotating shaft 804, and the end part of the limiting shaft sleeve 832 props against one side of the secondary power input gear 805, so that the secondary power input gear 805 and the secondary output transmission gear 806 cannot move axially.
The auxiliary clutch mechanism comprises an abutting tooth 807 which is arranged at one side of the auxiliary power output gear 801 and extends axially, and an abutting groove 808 which axially accommodates the abutting tooth 807 is arranged at one side of the auxiliary output clutch pawl 802; the other side of the auxiliary output clutch claw 802 is provided with a circumferential shifting groove 809, the auxiliary clutch mechanism further comprises a shifting fork 810 embedded into the shifting groove 809, the shifting fork 810 can be shifted axially to control the clutch between the auxiliary power output gear 801 and the auxiliary output clutch claw 802, under the normal working condition, the auxiliary output clutch return spring 811 pushes the auxiliary output clutch claw 802 to be close to the auxiliary power output gear 801 due to the elastic force effect, so that the collision teeth 807 are embedded into the collision groove 808, and the auxiliary power output gear 801 drives the auxiliary output clutch claw 802 and the auxiliary output power output shaft 800 to rotate; when the rotation of the auxiliary output power output shaft 800 needs to be stopped, the shifting fork 810 is shifted in the opposite direction in the axial direction, at this time, the contact tooth 807 is separated from the contact groove 808, the auxiliary output gear 801 cannot drive the auxiliary output clutch claw 802 and the auxiliary output power output shaft 800 to rotate, and at this time, other power output shafts of the transmission can independently rotate without being influenced by the rotation and the static state of the auxiliary output power output shaft 800.
In this embodiment, a pair of clutch levers 812 extends from the lower end of the shift fork 810, an adjusting plate 813 fixedly mounted on the outer side wall of the box 100 penetrates the front end of the pair of clutch levers 812, an adjusting sleeve 814 for the front end of the pair of clutch levers 812 to penetrate is disposed on the adjusting plate 813, and a pair of moving plates 815 perpendicular to the direction of the pair of clutch levers 812 are further mounted at the front end of the pair of clutch levers 812; a toggle bearing 816 sleeved on the auxiliary clutch shift lever 812 is installed in the adjusting sleeve 814, the toggle bearing 816 enables the shifting of the auxiliary clutch shift lever 812 to be smoother, further, the toggle bearing 816 is provided with three in sequence, a first sealing ring 817 is further sleeved on the auxiliary clutch shift lever 812, the first sealing ring 817 is arranged between two adjacent toggle bearings 816 and the auxiliary clutch shift lever 812, the auxiliary clutch shift lever 812 is provided with a sealing groove 818 in which the first sealing ring 817 is embedded, the first sealing ring 817 is used for sealing a gap between the outside and the auxiliary clutch shift lever 812, and the service life of the auxiliary clutch shift lever 812 is prolonged; an inner limiting snap spring 819 and an outer limiting snap spring 820 which are located on the outer side of the shifting bearing 816 are further arranged on the auxiliary clutch driving lever 812, the adjusting sleeve 814 is provided with a first snap ring groove for accommodating the outer limiting snap spring 820, the auxiliary clutch driving lever 812 is provided with a second snap ring groove 821 for accommodating the inner limiting snap spring 819, the outer limiting snap spring 820 abuts against the axial outer side of the shifting bearing 816, and the inner limiting snap spring 819 abuts against the axial inner side of the shifting bearing 816 so as to axially fix the shifting bearing 816; a second sealing ring 822 which is positioned outside the inner limiting clamp spring 819 and the outer limiting clamp spring 820 and sleeved on the auxiliary clutch driving lever 812 is further arranged in the adjusting sleeve 814, so that a gap between the outside and the auxiliary clutch driving lever 812 is further sealed, and the service life of the auxiliary clutch driving lever 812 is prolonged; an auxiliary clutch rotation stopping part 823 is arranged at the end part of the auxiliary clutch driving lever 812 exposed out of the box body 100, and an auxiliary clutch rotation stopping hole 824 matched with the auxiliary clutch rotation stopping part 823 is arranged on the auxiliary driving plate 815; the end of the auxiliary clutch lever 812 exposed outside the box 100 is further provided with a threaded fixing pin 825, and the threaded fixing pin 825 is in threaded connection with an auxiliary clutch fixing bolt 826.
In addition, lubricating oil is filled in the gearbox, so a plurality of oil seals are further installed on the gearbox body 100 of the gearbox, and the oil seals comprise a first oil seal 901, a second oil seal 902, a third oil seal 903, a fourth oil seal 904, a fifth oil seal 905, a sixth oil seal 906 and a seventh oil seal 907, which are respectively used for plugging openings between the power input shaft 200, the first gear shift shaft 301, the second gear shift lever 309, the second gear shift shaft 302, the first transmission rod 503, the second transmission rod 504 and the auxiliary output protection rotating shaft 700 and the gearbox body 100, and have good sealing performance; the power input shaft 200, the first gear shift shaft 301, the second gear shift shaft 302, the first transmission lever 503, the second transmission lever 504 and the auxiliary output protection rotating shaft 700 are respectively sleeved with a first bearing 908, a second bearing 909, a third bearing 910, a fourth bearing 911, a fifth bearing 912 and a sixth bearing 913, and the left power output shaft 601 and the right power output shaft 602 are respectively sleeved with a seventh bearing 914 and an eighth bearing 915, so that the rotating resistance of each rotating shaft or transmission lever is reduced, and the operating efficiency is improved.
The working principle of the steering gearbox is as follows: the internal combustion engine inputs power through the power input shaft 200, and outputs the power to the main clutch input gear 401 through the gear shifting of the speed change gear set, when the left clutch gear 402 and the right clutch gear 403 are respectively embedded with the main clutch input gear 401, the main clutch input gear 401 drives the left clutch gear 402 and the right clutch gear 403 to rotate, and then the power is respectively provided for the left power output shaft 601 and the right power output shaft 602 through the second left transition gear 509 and the second right transition gear 510 on the left and right transmission gear sets; when steering is needed, taking the control of the left clutch gear 402 as an example, the left clutch fork 411 is transversely shifted, the main clutch input gear 401 is separated from the left clutch gear 402, the left brake disc 408 is in contact friction with a left friction plate in the left brake sleeve 407, so that the left clutch gear 402 stops rotating, the corresponding left power output shaft 601 does not have power output, and meanwhile, the right clutch gear 403 continuously rotates to cause the right power output shaft 602 to rotate, so that the left wheel connected with the left power output shaft 601 is static, the right wheel connected with the right power output shaft 602 rotates, and the left steering is realized.
The auxiliary output protection mechanism and the auxiliary output mechanism are used for controlling the auxiliary output protection rotating shaft 700 and the auxiliary output power output shaft 800 to rotate, when the auxiliary output power output shaft 800 needs to be stopped to rotate, the shifting fork 810 is shifted in the axial direction in the opposite direction, the collision tooth 807 is separated from the collision groove 808, the auxiliary output gear 801 cannot drive the auxiliary output clutch claw 802 and the auxiliary output power output shaft 800 to rotate, and other power output shafts of the gearbox can independently rotate at the moment and are not influenced by the rotation and the static state of the auxiliary output power output shaft 800.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. A left-right steering control mechanism is characterized in that: steering column (400) and cup joint about including one main clutch input gear (401), left clutch gear (402) and right clutch gear (403) on steering column (400) about, left side clutch gear (402) with be provided with left clutching mechanism between main clutch input gear (401), right clutch gear (403) with be provided with right clutching mechanism between main clutch input gear (401), left side clutch gear (402) and right clutching gear (403) are relatively independent.
2. The left-right steering control mechanism according to claim 1, characterized in that: the main clutch input gear (401) and the left clutch gear (402) are respectively sleeved on the middle part and the left end of the left steering rod (400) and the right steering rod (400), and the right clutch gear (403) is sleeved on the right sleeve (404).
3. The left-right steering control mechanism according to claim 2, characterized in that: the left clutch mechanism comprises left steering control clutch teeth (405) arranged on one side of the left clutch gear (402) facing the main clutch input gear (401), and one side of the main clutch input gear (401) is provided with a left steering control clutch groove (406) for accommodating the left steering control clutch teeth (405); the right clutch mechanism comprises right steering control clutch teeth (412) arranged on one side, facing the main clutch input gear (401), of the right clutch gear (403), and a right steering control clutch groove for accommodating the right steering control clutch teeth (412) is formed in the other side of the main clutch input gear (401).
4. The left-right steering control mechanism according to claim 3, characterized in that: the left-right steering control mechanism further comprises a left brake sleeve (407) arranged on the left side of the left clutch gear (402), and a left brake disc (408) matched with the left brake sleeve (407) is sleeved at the left end of the left clutch gear (402); the middle part of the left clutch gear (402) is also provided with a left shifting groove (410), and a left clutch shifting fork (411) is radially embedded in the left shifting groove (410); the left-right steering control mechanism further comprises a right brake sleeve (413) arranged on the right side of the right clutch gear (403), and a right brake disc (414) matched with the right brake sleeve (413) is further sleeved at the right end of the right clutch gear (403); the middle part of the right clutch gear (403) is also provided with a right toggle groove (415), and the right toggle groove (415) is radially embedded with a right clutch shifting fork (416).
5. The left-right steering control mechanism according to claim 4, characterized in that: the lower end of the left clutch shifting fork (411) is fixedly connected with a left shifting rod (417) which is vertical to the direction of the left and right steering rods (400), and the upper end of the left clutch shifting fork is connected with a left shifting sheet (418) which is embedded into the left shifting groove (410); the lower extreme fixedly connected with of right side separation and reunion shift fork (416) with control steering column (400) and move towards vertically right poker rod (419), the upper end is connected with embedding right plectrum (420) of groove (415) are stirred to the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910792638.6A CN110617289A (en) | 2019-08-26 | 2019-08-26 | Left-right steering control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910792638.6A CN110617289A (en) | 2019-08-26 | 2019-08-26 | Left-right steering control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110617289A true CN110617289A (en) | 2019-12-27 |
Family
ID=68921986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910792638.6A Pending CN110617289A (en) | 2019-08-26 | 2019-08-26 | Left-right steering control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110617289A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396433A (en) * | 2022-01-24 | 2022-04-26 | 西南大学 | Spacing seat, outer sleeve, clutch, left and right clutch brake device and gearbox |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1243945A (en) * | 1969-06-26 | 1971-08-25 | Deere & Co | A change-speed gearbox, for agricultural vehicles |
| CN2879630Y (en) * | 2005-09-27 | 2007-03-21 | 浙江云洲齿轮箱有限公司 | Gearbox used specially for self-travelling combine harvester |
| CN201084932Y (en) * | 2007-09-11 | 2008-07-16 | 阳尧端 | Light reaper standard speed box drive system |
| CN102224782A (en) * | 2011-05-26 | 2011-10-26 | 浙江浦江齿轮有限公司 | Speed changing box steering mechanism of crawler-type harvester |
| CN203934301U (en) * | 2014-07-11 | 2014-11-12 | 凌栋梁 | A kind of garden supervisor turns to controlling organization |
| CN204031848U (en) * | 2014-08-28 | 2014-12-24 | 重庆航天巴山摩托车制造有限公司 | Grain header transmission case steering mechanism |
| CN106561167A (en) * | 2016-11-15 | 2017-04-19 | 金华职业技术学院 | Power system of combine harvester |
-
2019
- 2019-08-26 CN CN201910792638.6A patent/CN110617289A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1243945A (en) * | 1969-06-26 | 1971-08-25 | Deere & Co | A change-speed gearbox, for agricultural vehicles |
| CN2879630Y (en) * | 2005-09-27 | 2007-03-21 | 浙江云洲齿轮箱有限公司 | Gearbox used specially for self-travelling combine harvester |
| CN201084932Y (en) * | 2007-09-11 | 2008-07-16 | 阳尧端 | Light reaper standard speed box drive system |
| CN102224782A (en) * | 2011-05-26 | 2011-10-26 | 浙江浦江齿轮有限公司 | Speed changing box steering mechanism of crawler-type harvester |
| CN203934301U (en) * | 2014-07-11 | 2014-11-12 | 凌栋梁 | A kind of garden supervisor turns to controlling organization |
| CN204031848U (en) * | 2014-08-28 | 2014-12-24 | 重庆航天巴山摩托车制造有限公司 | Grain header transmission case steering mechanism |
| CN106561167A (en) * | 2016-11-15 | 2017-04-19 | 金华职业技术学院 | Power system of combine harvester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396433A (en) * | 2022-01-24 | 2022-04-26 | 西南大学 | Spacing seat, outer sleeve, clutch, left and right clutch brake device and gearbox |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2132289B (en) | A drive unit for motor vehicles | |
| RU2010108418A (en) | DRIVE TOOL WITH FRICTION COUPLING | |
| CN105020296B (en) | The wet-type dual-clutch mechanism of mechanical pressing friction piece | |
| CN107035782B (en) | Clutch with gear rack and planetary mechanism | |
| CN110686060B (en) | Steering gearbox and agricultural machine with same | |
| CN110686061B (en) | Auxiliary output protection mechanism | |
| CN110617289A (en) | Left-right steering control mechanism | |
| CN102966706A (en) | Three-shaft double-clutch speed changer | |
| CN106051071B (en) | Automatic transmission | |
| CN104999909A (en) | Vehicular power transmission device | |
| US2899034A (en) | Independent power take-off mechanism | |
| CN105114583B (en) | Combine double clutch mechanical speed changers of built-in clutch mechanism | |
| CN110671486A (en) | Auxiliary output mechanism | |
| CN102155527B (en) | Lock-type hydraulic torque converter with double clutches | |
| US8539923B2 (en) | Power unit for vehicle | |
| CN207830476U (en) | Hydraulic clutch positive and negative rotation differential transmission assembly | |
| CN103557253A (en) | Double-axis friction plate type brake clutch for planetary transmission with double-turbine torque converter | |
| US2378035A (en) | Hydraulic planetary transmission | |
| CN204985428U (en) | Machinery compresses tightly wet -type double clutch mechanism and mechanical transmission of friction disc | |
| CN214036719U (en) | Multi-speed transmission system for engineering drilling machine | |
| KR20030043801A (en) | revolution chaing | |
| CN112815019B (en) | Transmission method of double clutches | |
| CN201448428U (en) | Transmission case with tooth-shaped clutch | |
| CN220523128U (en) | Transmission device for power reversing of tractor | |
| CN111623091A (en) | Two-gear automatic gearbox |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191227 |