CN111284557A - Vehicle pivot steering device and method and vehicle - Google Patents
Vehicle pivot steering device and method and vehicle Download PDFInfo
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- CN111284557A CN111284557A CN202010209441.8A CN202010209441A CN111284557A CN 111284557 A CN111284557 A CN 111284557A CN 202010209441 A CN202010209441 A CN 202010209441A CN 111284557 A CN111284557 A CN 111284557A
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- vehicle
- steering
- motor
- shaft
- stage transmission
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D45/00—Harvesting of standing crops
- A01D45/04—Harvesting of standing crops of rice
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/18—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by power transmitting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
The invention provides a vehicle pivot steering device, a vehicle pivot steering method and a vehicle, wherein the vehicle pivot steering device comprises: the steering pump control valve is connected with the steering pump, the steering pump is connected with the steering motor, the steering motor is connected with the gearbox, and the gearbox is connected with left and right driving wheels of the vehicle. The power differential of the steering motor is transmitted to the gear box of the left driving wheel and the right driving wheel of the vehicle through the design, and the combination control of the steering pump and the steering pump control valve is matched, so that the in-situ steering of the vehicle is realized, the turning radius of the vehicle is reduced, the whole vehicle traveling performance of the vehicle is improved, the vehicle trafficability is improved, and the ergonomic level is improved.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a vehicle pivot steering device and method and a vehicle.
Background
At present, with the development of agricultural mechanization, the rice combine harvester is widely applied. As an important whole-vehicle walking steering control part of the whole rice machine, the turning convenience, flexibility, compositeness, reliability and the like directly influence the performance of the whole machine. The existing hydraulic system of the rice machine mainly controls a brake crank arm through a hydraulic oil cylinder, and drives a brake clutch arranged in a gearbox through a lever mechanism to perform unilateral crawler braking; therefore, the steering is realized, but the pivot steering can not be realized, and the walking performance, the trafficability characteristic and the ergonomic level of the whole vehicle are lower.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a vehicle pivot steering device, a vehicle pivot steering method and a vehicle.
The technical scheme for solving the technical problems is as follows: a vehicle pivot steering apparatus, comprising: the steering pump control valve is connected with the steering pump, the steering pump is connected with the steering motor, the steering motor is connected with the gearbox, and the gearbox is connected with left and right driving wheels of the vehicle.
The invention has the beneficial effects that: the power differential of a steering motor is transmitted to a gearbox of left and right driving wheels of a vehicle through design, the combination control of a steering pump and a steering pump control valve is matched, the in-situ steering of the vehicle is realized, the left and right driving wheels simultaneously rotate in opposite directions, and the forward thrust given to an inner side wheel by a turning outer side wheel during the neutral steering is kept at the steering center position through the opposite rotation between the left and right wheels; in addition, the inner side wheel and the outer side wheel rotate in opposite directions, so that torsion on the inner side wheel is effectively eliminated, steering friction force generated between the inner side wheel and the ground is reduced, abrasion of tires is reduced, turning radius of a vehicle is reduced, the whole vehicle traveling performance of the vehicle is improved, the vehicle trafficability is improved, and the ergonomic level is improved.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, still include: the traveling pump control valve is used for controlling the traveling pump for controlling the traveling of the vehicle, and the traveling motor is used for controlling the traveling pump control valve for outputting the forward direction and the reverse direction of the traveling pump and providing power for the traveling of the vehicle.
The beneficial effect of adopting the further scheme is that: the running system is integrated in the gearbox, so that the integration performance of the gearbox is improved, and the compactness of the vehicle is improved.
Further, the transmission case includes: the walking motor, the first shaft, the third shaft, the fourth shaft, the fifth shaft, the sixth shaft, the seventh shaft and the first output shaft are connected in sequence, and the fifth shaft is connected with the second output shaft.
The beneficial effect of adopting the further scheme is that: the reliability and the stability of the vehicle gearbox are improved by multi-stage gear transmission.
Further, still include: and the fifth shaft is connected with the sixth shaft through the first planetary mechanism, and the fifth shaft is connected with the second output shaft through the second planetary mechanism.
The beneficial effect of adopting the further scheme is that: the planetary mechanism is used for combining the power of the traveling motor and the power of the steering motor, so that the integration performance of the vehicle is improved, and the compactness of the vehicle is improved.
Furthermore, the gearbox forms mutual positive and negative differential of a left driving wheel and a right driving wheel in a mode of combining two-stage transmission and single-stage transmission.
The beneficial effect of adopting the further scheme is that: the rotation directions of the left and right driving wheels are converted in a mode of combining two-stage transmission and single-stage transmission, and the left and right driving wheels rotate forwards and reversely one by one, so that the in-situ steering of the vehicle is realized.
Further, the steering motor is connected with the first planetary mechanism through a two-stage transmission component, and the steering motor is connected with the second planetary mechanism through a single-stage transmission component.
The beneficial effect of adopting the further scheme is that: the rotation directions of the left and right driving wheels are converted in a mode of combining two-stage transmission and single-stage transmission, and the left and right driving wheels rotate forwards and reversely one by one, so that the in-situ steering of the vehicle is realized.
In addition, the invention also provides a vehicle pivot steering method based on any one of the vehicle pivot steering devices, and the vehicle pivot steering method comprises the following steps:
the steering pump control valve controls the forward/reverse output of the steering pump;
the forward/reverse output of the steering pump controls the steering motor to rotate forward/reversely;
the forward/reverse rotation of the steering motor is transmitted to the gearbox;
the gearbox performs differential processing on the forward/reverse rotation of the steering motor, so that the rotating speeds of the left and right driving wheels of the vehicle are inconsistent, and the steering of the vehicle is realized.
The invention has the beneficial effects that: the method for differentially transmitting the power of the steering motor to the left driving wheel and the right driving wheel of the vehicle is designed, and the combined control of the steering pump and the steering pump control valve is matched, so that the pivot steering of the vehicle is realized, the turning radius of the vehicle is reduced, the whole vehicle traveling performance of the vehicle is improved, the vehicle trafficability is improved, and the ergonomic level is improved.
Further, the step of performing differential processing on the forward/reverse rotation of the steering motor by the gearbox to make the rotation speeds of the left and right driving wheels of the vehicle inconsistent to realize the steering of the vehicle includes:
the gearbox performs differential processing on the forward/reverse rotation of the steering motor, so that the two-stage transmission part transmits in the forward direction and the single-stage transmission part transmits in the reverse direction; or the two-stage transmission component reversely transmits, and the single-stage transmission component positively transmits;
the first planetary mechanism and the second planetary mechanism correspondingly combine the power transmitted by the single-stage transmission component and the two-stage transmission component with the power of the traveling motor, so that the rotating speeds of the left driving wheel and the right driving wheel of the vehicle are inconsistent.
The beneficial effect of adopting the further scheme is that: the planetary mechanism is used for combining the power of the traveling motor and the power of the steering motor, so that the integration performance of the vehicle is improved, and the compactness of the vehicle is improved.
Further, the step of combining the power transmitted by the single-stage transmission member and the two-stage transmission member with the power transmitted by the traveling motor so that the rotational speeds of the left and right drive wheels of the vehicle are not coincident with each other by the first planetary mechanism and the second planetary mechanism, respectively, includes:
when the power transmitted by the walking motor is zero, the left driving wheel and the right driving wheel of the vehicle rotate forwards and reversely.
The beneficial effect of adopting the further scheme is that: the rotation directions of the left and right driving wheels are converted in a mode of combining two-stage transmission and single-stage transmission, and the left and right driving wheels rotate forwards and reversely one by one, so that the in-situ steering of the vehicle is realized.
In addition, the invention also provides a vehicle which comprises the vehicle pivot steering device.
The invention has the beneficial effects that: the power differential of the steering motor is transmitted to the gear box of the left driving wheel and the right driving wheel of the vehicle through the design, and the combination control of the steering pump and the steering pump control valve is matched, so that the in-situ steering of the vehicle is realized, the turning radius of the vehicle is reduced, the whole vehicle traveling performance of the vehicle is improved, the vehicle trafficability is improved, and the ergonomic level is improved.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a steering apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a steering apparatus according to an embodiment of the present invention.
The reference numbers illustrate: 1-a steering pump; 2-steering pump control valve; 3-a steering motor; 4-a walking pump; 5-a walking pump control valve; 6-a walking motor; 7-a first shaft; 8-a third axis; 9-fourth axis; 10-fifth axis; 11-sixth axis; 12-seventh axis; 13-a first output shaft; 14-a second output shaft; 15-a first planetary mechanism; 16-a second planetary mechanism; 17-a two-stage transmission member; 18-a single stage transmission component; 19-motor two-speed control valve.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a steering apparatus according to an embodiment of the present invention. Fig. 2 is a schematic diagram of a steering apparatus according to an embodiment of the present invention.
A vehicle pivot steering apparatus, comprising: the steering pump control system comprises a steering pump 1 for controlling vehicle steering, a steering pump control valve 2 for controlling forward and reverse output of the steering pump 1, a steering motor 3 for providing power for vehicle steering and a gearbox for differentially transmitting the power of the steering motor 3 to left and right driving wheels of a vehicle, wherein the steering pump control valve 2 is connected with the steering pump 1, the steering pump 1 is connected with the steering motor 3, the steering motor 3 is connected with the gearbox, and the gearbox is connected with the left and right driving wheels of the vehicle.
The invention has the beneficial effects that: the power differential of a steering motor is transmitted to a gearbox of left and right driving wheels of a vehicle through design, the combination control of a steering pump and a steering pump control valve is matched, the in-situ steering of the vehicle is realized, the left and right driving wheels simultaneously rotate in opposite directions, and the forward thrust given to an inner side wheel by a turning outer side wheel during the neutral steering is kept at the steering center position through the opposite rotation between the left and right wheels; in addition, the inner side wheel and the outer side wheel rotate in opposite directions, so that torsion on the inner side wheel is effectively eliminated, steering friction force generated between the inner side wheel and the ground is reduced, abrasion of tires is reduced, turning radius of a vehicle is reduced, the whole vehicle traveling performance of the vehicle is improved, the vehicle trafficability is improved, and the ergonomic level is improved.
The prior art scheme is a hydraulic control system generally applied to a rice machine. The single pump system, unload grain, reel, header, turn to four valves and establish ties, turn to the overflow valve independent with oil. The existing steering system realizes steering by means of unilateral braking and continuous walking on the other side. The rice machine in the prior art only leads the crawler belt on one side to rotate forwards for steering, has large turning radius and poor trafficability in muddy fields, and is easy to cause vehicle sinking. The control valve is mechanically controlled, the control comfort is not high, and the whole vehicle is easy to shake when turning, so that a user is easy to fatigue.
According to the vehicle pivot steering device provided by the embodiment of the invention, the whole vehicle is controlled by the double HST (control switch), the pivot steering of the whole vehicle can be realized, the turning radius is small, and the trafficability is better during paddy field operation; the HST of the turning and walking control of the whole vehicle is controlled by adopting electric proportion, and the micro-control performance is greatly improved, so that the steering stability of the whole vehicle is improved, and the operation comfort during the operation of the whole vehicle is improved.
As shown in fig. 1, the forward and reverse outputs of the traveling pump 4 are controlled by whether current is supplied to a1 or b1 of a traveling pump control valve group (namely, a traveling pump control valve) (the magnitude of the current controls the magnitude of the output flow of the pump), so that the forward and reverse rotation of the traveling motor 6 is controlled, and the forward or reverse of the whole vehicle is realized;
controlling the forward and reverse outputs of the steering pump 1 by supplying current to a2 or b2 of a steering pump control valve group (namely a steering pump control valve) (the magnitude of the current controls the magnitude of the output flow of the pump), so as to control the forward and reverse rotation of the steering motor 3, and further realize the left rotation or the right rotation of the whole vehicle;
as shown in fig. 2, the traveling pump control valve group in fig. 2 controls the forward and reverse outputs of the traveling pump 4, so as to control the forward and reverse rotation of the traveling motor 6 and further transmit power to the gearbox. After being transmitted to the gearbox, the power is transmitted to a driving wheel through a first shaft, a third shaft, a fourth shaft, a fifth shaft, a sixth shaft and a seventh shaft of the gearbox, so that the whole vehicle is controlled to travel;
the steering pump control valve group in fig. 1 controls the forward and reverse outputs of the steering pump 1, so as to control the forward and reverse rotation of the steering motor 3 and further transmit power to the gearbox. After being transmitted to the transmission (as shown in fig. 2), the differential is formed at the positions of the two-stage transmission component (two-stage transmission) and the single-stage transmission component (single-stage transmission) through two-stage transmission, the differential is transmitted to the planetary mechanisms, namely the first planetary mechanism 15 and the second planetary mechanism 16, while the differential is transmitted in the forward direction, the differential is transmitted to the planetary mechanisms, the power transmitted by the steering motor 3 is combined with the power transmitted by the traveling motor 6 on the planetary mechanisms, the speeds of the left side and the right side are inconsistent after the combination, and the speeds of the driving wheels are inconsistent when the inconsistent speeds are transmitted to the driving wheels, so that the.
When the speed transmitted by the walking motor is zero and the speed transmitted by the steering motor is combined at the position of the planet carrier, the speeds of the two sides of the driving wheel rotate forwards and backwards, and are equal, so that the pivot steering can be realized.
The whole vehicle walking pump and the steering pump are controlled in an electric proportion mode, so that steering can be accurately controlled, the micro-control performance is good, and the steering stability of the whole vehicle is improved.
Further comprising: the motor double-speed control valve is used for adjusting power of the walking motor and the steering motor, and is connected with the steering pump control valve, the walking motor and the steering motor.
The whole paddy rice machine is controlled by double HST, so that the whole paddy rice machine can realize pivot steering, has small turning radius and better trafficability during paddy field operation, greatly improves the adaptability of the paddy rice machine product and better meets the market demand; the HST for turning and walking of the whole vehicle is controlled by adopting electric proportion, and the micro-control performance is greatly improved, so that the steering stability of the whole vehicle is improved, and the operation comfort during the operation of the whole vehicle is improved.
Further, still include: the traveling pump control device comprises a traveling pump 4 for controlling vehicle traveling, a traveling pump control valve 5 for controlling forward and reverse output of the traveling pump 4 and a traveling motor 6 for providing power for vehicle traveling, wherein the traveling pump control valve 5 is connected with the traveling pump 4, the traveling pump 4 is connected with the traveling motor 6, and the traveling motor 6 is connected with a gearbox.
The beneficial effect of adopting the further scheme is that: the running system is integrated in the gearbox, so that the integration performance of the gearbox is improved, and the compactness of the vehicle is improved.
Further, the transmission case includes: the walking mechanism comprises a first shaft 7, a third shaft 8, a fourth shaft 9, a fifth shaft 10, a sixth shaft 11, a seventh shaft 12, a first output shaft and a second output shaft, wherein a walking motor, the first shaft, the third shaft, the fourth shaft, the fifth shaft, the sixth shaft, the seventh shaft and the first output shaft 13 are sequentially connected, and the fifth shaft is connected with a second output shaft 14.
The beneficial effect of adopting the further scheme is that: the reliability and the stability of the vehicle gearbox are improved by multi-stage gear transmission.
Further, still include: a first planetary mechanism 15 and a second planetary mechanism 16, a fifth shaft is connected to the sixth shaft 11 through the first planetary mechanism 15, and the fifth shaft 10 is connected to the second output shaft 14 through the second planetary mechanism 16.
The beneficial effect of adopting the further scheme is that: the planetary mechanism is used for combining the power of the traveling motor and the power of the steering motor, so that the integration performance of the vehicle is improved, and the compactness of the vehicle is improved.
Furthermore, the gearbox forms mutual positive and negative differential of a left driving wheel and a right driving wheel in a mode of combining two-stage transmission and single-stage transmission.
The beneficial effect of adopting the further scheme is that: the rotation directions of the left and right driving wheels are converted in a mode of combining two-stage transmission and single-stage transmission, and the left and right driving wheels rotate forwards and reversely one by one, so that the in-situ steering of the vehicle is realized.
Further, the steering motor 3 is connected to the first planetary mechanism 15 via a two-stage transmission member 17, and the steering motor 3 is connected to the second planetary mechanism 16 via a single-stage transmission member 18.
The beneficial effect of adopting the further scheme is that: the rotation directions of the left and right driving wheels are converted in a mode of combining two-stage transmission and single-stage transmission, and the left and right driving wheels rotate forwards and reversely one by one, so that the in-situ steering of the vehicle is realized.
In addition, the invention also provides a vehicle pivot steering method based on any one of the vehicle pivot steering devices, and the vehicle pivot steering method comprises the following steps:
the steering pump control valve controls the forward/reverse output of the steering pump;
the forward/reverse output of the steering pump controls the steering motor to rotate forward/reversely;
the forward/reverse rotation of the steering motor is transmitted to the gearbox;
the gearbox performs differential processing on the forward/reverse rotation of the steering motor, so that the rotating speeds of the left and right driving wheels of the vehicle are inconsistent, and the steering of the vehicle is realized.
The invention has the beneficial effects that: the method for differentially transmitting the power of the steering motor to the left driving wheel and the right driving wheel of the vehicle is designed, and the combined control of the steering pump and the steering pump control valve is matched, so that the pivot steering of the vehicle is realized, the turning radius of the vehicle is reduced, the whole vehicle traveling performance of the vehicle is improved, the vehicle trafficability is improved, and the ergonomic level is improved.
Further, the step of performing differential processing on the forward/reverse rotation of the steering motor by the gearbox to make the rotation speeds of the left and right driving wheels of the vehicle inconsistent to realize the steering of the vehicle includes:
the gearbox performs differential processing on the forward/reverse rotation of the steering motor, so that the two-stage transmission part transmits in the forward direction and the single-stage transmission part transmits in the reverse direction; or the two-stage transmission component reversely transmits, and the single-stage transmission component positively transmits;
the first planetary mechanism and the second planetary mechanism correspondingly combine the power transmitted by the single-stage transmission component and the two-stage transmission component with the power of the traveling motor, so that the rotating speeds of the left driving wheel and the right driving wheel of the vehicle are inconsistent.
The beneficial effect of adopting the further scheme is that: the planetary mechanism is used for combining the power of the traveling motor and the power of the steering motor, so that the integration performance of the vehicle is improved, and the compactness of the vehicle is improved.
Further, the step of combining the power transmitted by the single-stage transmission member and the two-stage transmission member with the power transmitted by the traveling motor so that the rotational speeds of the left and right drive wheels of the vehicle are not coincident with each other by the first planetary mechanism and the second planetary mechanism, respectively, includes:
when the power transmitted by the walking motor is zero, the left driving wheel and the right driving wheel of the vehicle rotate forwards and reversely.
The beneficial effect of adopting the further scheme is that: the rotation directions of the left and right driving wheels are converted in a mode of combining two-stage transmission and single-stage transmission, and the left and right driving wheels rotate forwards and reversely one by one, so that the in-situ steering of the vehicle is realized.
In addition, the invention also provides a vehicle which comprises the vehicle pivot steering device.
The invention has the beneficial effects that: the power differential of the steering motor is transmitted to the gear box of the left driving wheel and the right driving wheel of the vehicle through the design, and the combination control of the steering pump and the steering pump control valve is matched, so that the in-situ steering of the vehicle is realized, the turning radius of the vehicle is reduced, the whole vehicle traveling performance of the vehicle is improved, the vehicle trafficability is improved, and the ergonomic level is improved.
The whole vehicle can realize pivot steering, the turning radius is minimum, and the trafficability of the whole vehicle is good; the HST adopts electric proportional control and micro-control performance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A vehicle pivot steering apparatus, comprising: the steering pump control valve is connected with the steering pump, the steering pump is connected with the steering motor, the steering motor is connected with the gearbox, and the gearbox is connected with left and right driving wheels of the vehicle; the gearbox forms mutual positive and negative differential of a left driving wheel and a right driving wheel in a mode of combining two-stage transmission and single-stage transmission.
2. The pivot steering apparatus for a vehicle according to claim 1, further comprising: the traveling pump control valve is used for controlling the traveling pump for controlling the traveling of the vehicle, and the traveling motor is used for controlling the traveling pump control valve for outputting the forward direction and the reverse direction of the traveling pump and providing power for the traveling of the vehicle.
3. A vehicle pivot steering arrangement according to claim 1, wherein the gearbox includes: the walking motor, the first shaft, the third shaft, the fourth shaft, the fifth shaft, the sixth shaft, the seventh shaft and the first output shaft are connected in sequence, and the fifth shaft is connected with the second output shaft.
4. A vehicle pivot steering apparatus according to claim 3, further comprising: and the fifth shaft is connected with the sixth shaft through the first planetary mechanism, and the fifth shaft is connected with the second output shaft through the second planetary mechanism.
5. The vehicle pivot steering apparatus of claim 4, wherein the coupling of the steering motor to the first planetary mechanism comprises: the steering motor is connected with the first planetary mechanism through a two-stage transmission component, and the steering motor is connected with the second planetary mechanism through a single-stage transmission component.
6. A vehicle pivot steering method, based on the vehicle pivot steering apparatus according to claim 1, comprising:
the steering pump control valve controls the forward/reverse output of the steering pump;
the forward/reverse output of the steering pump controls the steering motor to rotate forward/reversely;
the forward/reverse rotation of the steering motor is transmitted to the gearbox;
the gearbox performs differential processing on the forward/reverse rotation of the steering motor, so that the two-stage transmission part transmits in the forward direction and the single-stage transmission part transmits in the reverse direction; or the two-stage transmission component reversely transmits, and the single-stage transmission component positively transmits;
the first planetary mechanism and the second planetary mechanism correspondingly combine the power transmitted by the single-stage transmission component and the two-stage transmission component with the power of the traveling motor, so that the rotating speeds of the left driving wheel and the right driving wheel of the vehicle are inconsistent, and the steering of the vehicle is realized.
7. The pivot steering method for the vehicle according to claim 6, wherein the step of combining the power transmitted by the single-stage transmission member and the power transmitted by the two-stage transmission member with the power transmitted by the traveling motor so that the rotational speeds of the left and right driving wheels of the vehicle are not uniform, comprises the steps of:
when the power transmitted by the walking motor is zero, the left driving wheel and the right driving wheel of the vehicle rotate forwards and reversely.
8. A vehicle comprising a vehicle pivot steering apparatus as claimed in any one of claims 1 to 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010199054 | 2020-03-20 | ||
| CN2020101990540 | 2020-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111284557A true CN111284557A (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010209441.8A Pending CN111284557A (en) | 2020-03-20 | 2020-03-23 | Vehicle pivot steering device and method and vehicle |
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| CN (1) | CN111284557A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115158457A (en) * | 2022-07-04 | 2022-10-11 | 易如(山东)智能科技有限公司 | Tractor gearbox capable of achieving pivot steering and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326409A (en) * | 1998-12-16 | 2001-12-12 | 洋马农机株式会社 | Work vehicle |
| CN201376593Y (en) * | 2009-04-14 | 2010-01-06 | 东北农业大学 | Double flow differential steering mechanism |
| CN104964019A (en) * | 2015-06-29 | 2015-10-07 | 湖南省农友机械集团有限公司 | Transmission mechanism of crawler-type machine |
-
2020
- 2020-03-23 CN CN202010209441.8A patent/CN111284557A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326409A (en) * | 1998-12-16 | 2001-12-12 | 洋马农机株式会社 | Work vehicle |
| CN201376593Y (en) * | 2009-04-14 | 2010-01-06 | 东北农业大学 | Double flow differential steering mechanism |
| CN104964019A (en) * | 2015-06-29 | 2015-10-07 | 湖南省农友机械集团有限公司 | Transmission mechanism of crawler-type machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115158457A (en) * | 2022-07-04 | 2022-10-11 | 易如(山东)智能科技有限公司 | Tractor gearbox capable of achieving pivot steering and control method |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Applicant after: Weichai leiwo Heavy Industry Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Applicant before: LOVOL HEAVY INDUSTRY Co.,Ltd. |
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