CN112128340A - Electric control differential mechanism - Google Patents
Electric control differential mechanism Download PDFInfo
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- CN112128340A CN112128340A CN202011122349.4A CN202011122349A CN112128340A CN 112128340 A CN112128340 A CN 112128340A CN 202011122349 A CN202011122349 A CN 202011122349A CN 112128340 A CN112128340 A CN 112128340A
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- gear
- speed regulation
- steering
- planetary gear
- differential
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- 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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to an electric control differential mechanism, and belongs to the field of machinery. The steering control system is matched with the open differential, the steering control system comprises a left speed regulation control mechanism and a right speed regulation control mechanism, and the left speed regulation control mechanism and the right speed regulation control mechanism are matched with the open differential. The open differential mechanism comprises a left planetary gear support, a right planetary gear support, an input shaft, an output shaft, a differential gear and a differential shaft, wherein planetary gears are mounted on the left planetary gear support and the right planetary gear support, the input shaft and the output shaft are matched with the planetary gears, the left planetary gear support and the right planetary gear support are matched with the differential gear, one end of the differential shaft is connected with the differential gear, and the steering control system is matched with the differential shaft. The electric control differential mechanism has the advantages of convenience in control, convenience in installation and the like.
Description
Technical Field
The invention relates to an electric control differential mechanism, and belongs to the field of machinery.
Background
The automobile differential mechanism can realize a mechanism that left and right (or front and rear) driving wheels rotate at different rotating speeds. Mainly comprises a left half shaft gear, a right half shaft gear, two planet gears and a gear carrier. The function is that when the automobile turns or runs on an uneven road surface, the left wheel and the right wheel roll at different rotating speeds, namely, the pure rolling motion of the driving wheels at two sides is ensured. The differential is provided for adjusting the difference in the rotational speeds of the left and right wheels. The differentials in the prior art are mostly controlled in a mechanical control mode, so that the differentials in the prior art are inconvenient to control and install.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the electric control differential which is reasonable in structural design, convenient to control and install.
The technical scheme adopted by the invention for solving the problems is as follows: the electric control differential mechanism is characterized in that: the steering control system is matched with the open differential, the steering control system comprises a left speed regulation control mechanism and a right speed regulation control mechanism, and the left speed regulation control mechanism and the right speed regulation control mechanism are matched with the open differential.
Furthermore, the open differential mechanism comprises a left planetary gear support, a right planetary gear support, an input shaft, an output shaft, a differential gear and a differential shaft, wherein planetary gears are mounted on the left planetary gear support and the right planetary gear support, the input shaft and the output shaft are matched with the planetary gears, the left planetary gear support and the right planetary gear support are matched with the differential gear, one end of the differential shaft is connected with the differential gear, and the steering control system is matched with the differential shaft.
Furthermore, the left planetary gear support comprises a left bevel gear and a left gear mounting disc, the right planetary gear support comprises a right bevel gear and a right gear mounting disc, and planetary gears are mounted between the left bevel gear and the left gear mounting disc and between the right bevel gear and the right gear mounting disc.
Further, the input shaft comprises an input shaft body, two ends of the input shaft body are respectively provided with an input shaft gear, and the two input shaft gears are respectively meshed with the planetary gears arranged on the left planetary gear bracket and the right planetary gear bracket.
Further, the input shaft still includes the input shaft connection pad, the input shaft connection pad is installed on the input shaft body, be provided with the mounting hole on the input shaft connection pad.
Further, the output shaft comprises an output shaft body and an output shaft gear, the output shaft gear is installed at one end of the output shaft body, and the output shaft gear is meshed with the planetary gear.
Further, the number of the planetary gears is more than 3, the planetary gears comprise planetary gear bodies and planetary gear shafts, the planetary gear shafts are mounted on the left planetary gear support and the right planetary gear support, and the planetary gear bodies are mounted on the planetary gear shafts.
Further, the steering control system further comprises a left speed regulation control rack and a right speed regulation control rack, the left speed regulation control mechanism comprises a left speed regulation control rotating shaft, a left speed regulation controller and a left speed regulation control gear, the right speed regulation control mechanism comprises a right speed regulation control rotating shaft, a right speed regulation controller and a right speed regulation control gear, the left speed regulation controller is sleeved on the left speed regulation control rotating shaft, the left speed regulation control gear is sleeved on the left speed regulation controller, the left speed regulation control gear is matched with the left speed regulation control rack, the right speed regulation controller is sleeved on the right speed regulation control rotating shaft, the right speed regulation control gear is sleeved on the right speed regulation controller, and the right speed regulation control gear is matched with the right speed regulation control rack.
Furthermore, the steering control system also comprises a steering gear, a steering rack, a steering wheel and a steering shaft, wherein the steering wheel is connected with the steering shaft, the steering gear is sleeved on the steering shaft, the steering gear is meshed with the steering rack, and the left speed regulation control mechanism and the right speed regulation control mechanism are both arranged on the steering rack.
Further, the steering control system further comprises a worm wheel, a worm, a motor and a motor controller, wherein the worm wheel is matched with the open differential, the worm wheel is meshed with the worm, the worm is connected with a motor shaft of the motor, the motor is connected with the motor controller, and the motor controller is connected with the left speed regulation control mechanism and the right speed regulation control mechanism.
Further, the steering control system further comprises a speed sensor for measuring the speed of the transmission shaft, and the speed sensor is connected with the motor controller.
Compared with the prior art, the invention has the following advantages: the steering wheel controls the rotation of a steering shaft, the steering shaft controls the rotation of a steering gear, because the steering gear is meshed with a steering rack, and then the left and right movement of the steering rack can be realized, so that the left speed regulation control gear is meshed with the left speed regulation control rack, or the right speed regulation control gear is meshed with the right speed regulation control rack, signals of the left speed regulation controller and the right speed regulation controller are transmitted to a motor controller, meanwhile, a speed sensor transmits a signal for measuring a transmission shaft to the motor controller, and then the motor is controlled to be in positive and reverse rotation through the motor controller, because the worm wheel is meshed with a worm, and then the left and right movement of the open differential is controlled to be in positive and reverse rotation through the control motor, and the open differential controls the turning.
When the steering gear is disengaged from the steering rack, the open differential controls the vehicle to travel straight.
The electric control differential mechanism has the advantages of convenient control, convenient installation and the like; the open differential controls the left planetary gear bracket and the right planetary gear bracket, the electric control differential is adopted to conveniently control the straight movement and the turning of a vehicle, the number of the planetary gears is controlled between 3-5, on one hand, the cost can be saved, and on the other hand, the input shaft gear, the output shaft gear and the planetary gear body can be ensured to have enough meshing surfaces so as to ensure that the input shaft gear, the output shaft gear and the planetary gear body have enough transmission force.
Drawings
Fig. 1 is a schematic connection diagram of an electrically controlled differential according to an embodiment of the present invention.
Fig. 2 is a front view schematic diagram of an open differential according to an embodiment of the present invention.
Fig. 3 is a schematic view of the cross-sectional structure a-a in fig. 2.
Fig. 4 is an exploded view of an open differential according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a right-side view of the open differential according to the embodiment of the present invention.
Fig. 6 is a schematic view of a sectional structure B-B in fig. 5.
Fig. 7 is a left side view configuration diagram of the steering control system of the embodiment of the invention.
Fig. 8 is a schematic diagram of a right-view structure of a steering control system according to an embodiment of the present invention.
Fig. 9 is a schematic perspective view of a steering control system according to an embodiment of the present invention.
Fig. 10 is a schematic perspective view of a steering control system according to an embodiment of the present invention.
In the figure: a left planetary gear bracket 1, a right planetary gear bracket 2, an input shaft 3, an output shaft 4, a planetary gear 5, a differential gear 6, a differential shaft 7, a steering control system 8, a transmission shaft 9,
A left bevel gear 11, a left gear mounting disc 12,
A right bevel gear 21, a right gear mounting plate 22,
An input shaft body 31, an input shaft gear 32, an input shaft connecting plate 33, a mounting hole 34,
An output shaft body 41, an output shaft gear 42,
A planetary gear body 51, a planetary gear shaft 52,
A worm wheel 81, a worm 82, a motor 83, a motor controller 84, a speed sensor 85, a left speed regulation control mechanism 86, a right speed regulation control mechanism 87, a left speed regulation control rack 88, a right speed regulation control rack 89, a steering gear 810, a steering rack 811, a steering wheel 812, a steering shaft 813, a speed sensor control device control,
A left speed regulation control rotating shaft 861, a left speed regulation controller 862, a left speed regulation control gear 863,
A right speed regulation control rotating shaft 871, a right speed regulation controller 872 and a right speed regulation control gear 873.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Examples are given.
Referring to fig. 1 to 10, it should be understood that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical essence, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes, should still fall within the scope of the present invention without affecting the functions and the achievable objectives of the present invention. In the present specification, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, and are not used to limit the scope of the present invention, and the relative relationship between the terms and the relative positions may be changed or adjusted without substantial technical changes.
The electronic control differential mechanism in the embodiment is used for controlling the straight running or turning of the vehicle in the vehicle and comprises an open differential mechanism and a steering control system 8, wherein the steering control system 8 is matched with the open differential mechanism; the control of the open differential is realized through the steering control system 8, and further the control of the left planetary gear bracket 1 and the right planetary gear bracket 2 is realized; the left and right planet gear carriers 1 and 2 may be used to control the left and right front wheels, and may also be used to control the left and right rear wheels.
The open differential mechanism in the embodiment comprises a left planetary gear support 1, a right planetary gear support 2, an input shaft 3, an output shaft 4, a differential gear 6 and a differential shaft 7, wherein planetary gears 5 are respectively installed on the left planetary gear support 1 and the right planetary gear support 2, the input shaft 3 and the output shaft 4 are respectively matched with the planetary gears 5, the left planetary gear support 1 and the right planetary gear support 2 are respectively matched with the differential gear 6, one end of the differential shaft 7 is connected with the differential gear 6, and a steering control system 8 is matched with the differential shaft 7.
The left planetary gear bracket 1 in this embodiment includes a left bevel gear 11 and a left gear mounting plate 12, the right planetary gear bracket 2 includes a right bevel gear 21 and a right gear mounting plate 22, and the planetary gears 5 are mounted between the left bevel gear 11 and the left gear mounting plate 12, and between the right bevel gear 21 and the right gear mounting plate 22.
The input shaft 3 in this embodiment includes an input shaft body 31 and an input shaft connecting plate 33, one input shaft gear 32 is mounted at each end of the input shaft body 31, the two input shaft gears 32 are respectively engaged with the planetary gears 5 mounted on the left planetary gear carrier 1 and the right planetary gear carrier 2, the input shaft connecting plate 33 is mounted on the input shaft body 31, and the input shaft connecting plate 33 is provided with a mounting hole 34 for facilitating gear mounting.
The output shaft 4 in this embodiment includes an output shaft body 41 and an output shaft gear 42, the output shaft gear 42 is mounted at one end of the output shaft body 41, the output shaft gear 42 is engaged with the planetary gear 5, the other end of the output shaft body 41 is connected with a wheel and a sprocket for driving a crawler, and a gap exists between the output shaft gear 42 and the input shaft gear 32.
The number of the planetary gears 5 in the present embodiment is 3 or more, and preferably, the number of the planetary gears 5 is 3 to 5, the planetary gears 5 include planetary gear bodies 51 and planetary gear shafts 52, the planetary gear shafts 52 are mounted on the left planetary gear carrier 1 and the right planetary gear carrier 2, and the planetary gear bodies 51 are mounted on the planetary gear shafts 52.
The steering control system 8 in this embodiment includes a worm wheel 81, a worm 82, a motor 83, a motor controller 84, a speed sensor 85 for measuring the speed of the transmission shaft 9, a left speed control mechanism 86, a right speed control mechanism 87, a left speed control rack 88, a right speed control rack 89, a steering gear 810, a steering rack 811, a steering wheel 812, and a steering shaft 813.
The left speed regulation control mechanism 86 and the right speed regulation control mechanism 87 in the embodiment are both matched with an open differential, under the normal condition, the left speed regulation control mechanism 86 comprises a left speed regulation control rotating shaft 861, a left speed regulation controller 862 and a left speed regulation control gear 863, the right speed regulation control mechanism 87 comprises a right speed regulation control rotating shaft 871, a right speed regulation controller 872 and a right speed regulation control gear 873, the left speed regulation controller 862 is sleeved on the left speed regulation control rotating shaft 861, the left speed regulation control gear 863 is sleeved on the left speed regulation controller 862, the left speed regulation control gear 863 is matched with the left speed regulation control rack 88, the right speed regulation controller 872 is sleeved on the right speed regulation control rotating shaft 871, the right speed regulation control gear 873 is sleeved on the right speed regulation controller 872, and the right speed regulation control gear 873 is matched with the right speed regulation control rack 89; the left speed-regulating controller 862 and the right speed-regulating controller 872 both adopt the structure and the working principle of a speed-regulating rotating handle of an electric vehicle, and belong to the prior art.
In this embodiment, a steering wheel 812 is connected to a steering shaft 813, a steering gear 810 is sleeved on the steering shaft 813, the steering gear 810 is engaged with a steering rack 811, a left speed regulation control mechanism 86 and a right speed regulation control mechanism 87 are both mounted on the steering rack 811, the left speed regulation control mechanism 86 and the right speed regulation control mechanism 87 are in diagonal distribution under normal conditions, a left speed regulation control rotating shaft 861 and a right speed regulation control rotating shaft 871 are both mounted on the steering rack 811, and the left speed regulation control rotating shaft 861 and the right speed regulation control rotating shaft 871 are mounted on both sides of the steering rack 811 and are located at the end of the steering rack 811.
The worm wheel 81 in this embodiment is engaged with the open differential, the worm wheel 81 is normally mounted on the differential shaft 7, the worm wheel 81 is engaged with the worm 82, the worm 82 is connected with a motor shaft of the motor 83, the left speed controller 862, the right speed controller 872, the motor 83 and the speed sensor 85 are all connected with the motor controller 84, and the motor controller 84 is connected with the left speed control mechanism 86 and the right speed control mechanism 87.
The control method of the electric control differential mechanism in the embodiment is as follows:
the electric control differential mechanism is adopted to control the vehicle to move straight, the open differential mechanism is controlled through the steering control system 8, so that the left planetary gear bracket 1 and the right planetary gear bracket 2 stop rotating, and the input shaft 3 and the output shaft 4 are matched through the planetary gear 5 to realize the straight movement of the vehicle; so as to realize no differential speed when the vehicle moves straight.
When the vehicle runs straight, the differential is adopted to control the vehicle to be specific as follows, a steering gear 810 arranged on a steering shaft 813 is meshed with a steering rack 811 by rotating a steering wheel 812 to control the steering rack 811 to move left and right, but at the moment, a left speed regulation control gear 863 and a left speed regulation control rack 88 as well as a right speed regulation control gear 873 and a right speed regulation control rack 89 are in a separated state, so that the differential wheel 6 stops rotating, and the left bevel gear 11 and the right bevel gear 21 are controlled to stop rotating; the input shaft gears 32 installed at both ends of the input shaft body 31 at this time drive the planetary gear bodies 51 to rotate, and the output shaft gears 42 installed on the output shaft body 41 are driven to rotate by the planetary gear bodies 51, thereby realizing the rotation of the output shaft body 41 to realize the straight movement of the vehicle.
Secondly, the pneumatic control differential is adopted to control the vehicle to turn, the open type differential is controlled through the steering control system 8, then the left planetary gear bracket 1 and the right planetary gear bracket 2 are enabled to rotate left and right, and the input shaft 3 and the output shaft 4 are matched through the planetary gear 5, so that the vehicle is turned.
When the vehicle turns, the differential is adopted to control the vehicle to be specific as follows, a steering gear 810 arranged on a steering shaft 813 is meshed with a steering rack 811 by rotating a steering wheel 812 to control the steering rack 811 to move left and right, at the moment, a left speed regulation control gear 863 is meshed with a left speed regulation control rack 88 or a right speed regulation control gear 873 is meshed with a right speed regulation control rack 89, signals of a left speed regulation controller 862 and a right speed regulation controller 872 are transmitted to a motor controller 84, meanwhile, a speed sensor 85 transmits a signal of a detected transmission shaft 9 to the motor controller 84, the motor 83 is controlled to rotate forwards and backwards by the motor controller 84, and the left and right movement of the open differential is controlled by controlling the forward and backward rotation of the motor 83 due to the meshing of a worm gear 81 and a worm 82, so that the open differential controls the vehicle to turn.
Specifically, the working process of the electronic control differential is as follows: the steering wheel 812 controls the steering shaft 813 to rotate, the steering shaft 813 controls the steering gear 810 to rotate, the steering gear 810 is meshed with the steering rack 811, so that the steering rack 811 can move left and right, the left speed regulation control gear 863 is meshed with the left speed regulation control rack 88, or the right speed regulation control gear 873 is meshed with the right speed regulation control rack 89, signals of the left speed regulation controller 862 and the right speed regulation controller 872 are transmitted to the motor controller 84, meanwhile, the speed sensor 85 transmits a signal of the measured transmission shaft 9 to the motor controller 84, so that the motor 83 is controlled to rotate forwards and backwards through the motor controller 84, and the worm wheel 81 is meshed with the worm 82, so that the left and right movement of the open differential is controlled through the forward and backward rotation of the control motor 83, and the open differential controls the vehicle to turn.
When the steering gear 810 is disengaged from the steering rack 811, the open differential controls the vehicle to travel straight.
The electric control differential mechanism has the advantages of convenient control, convenient installation and the like; the open differential controls the left planetary gear bracket 1 and the right planetary gear bracket 2, the electric control differential is adopted to conveniently control the straight movement and the turning of a vehicle, the number of the planetary gears 5 is controlled between 3 and 5, on one hand, the cost can be saved, and on the other hand, the input shaft gear 32, the output shaft gear 42 and the planetary gear body 51 can be ensured to have enough meshing surfaces so as to ensure that the input shaft gear 32, the output shaft gear 42 and the planetary gear body 51 have enough transmission force.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. Equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. An electrically controlled differential, characterized by: including open differential and steering control system (8), steering control system (8) and open differential cooperation, steering control system (8) include left speed governing control mechanism (86) and right speed governing control mechanism (87), left side speed governing control mechanism (86) and right speed governing control mechanism (87) all cooperate with open differential.
2. An electronically controlled differential according to claim 1, wherein: the open differential comprises a left planetary gear support (1), a right planetary gear support (2), an input shaft (3), an output shaft (4), a differential gear (6) and a differential shaft (7), wherein planetary gears (5) are installed on the left planetary gear support (1) and the right planetary gear support (2), the input shaft (3) and the output shaft (4) are matched with the planetary gears (5), the left planetary gear support (1) and the right planetary gear support (2) are matched with the differential gear (6), one end of the differential shaft (7) is connected with the differential gear (6), and a steering control system (8) is matched with the differential shaft (7).
3. An electronically controlled differential according to claim 2, wherein: the left planetary gear support (1) comprises a left bevel gear (11) and a left gear mounting disc (12), the right planetary gear support (2) comprises a right bevel gear (21) and a right gear mounting disc (22), and planetary gears (5) are mounted between the left bevel gear (11) and the left gear mounting disc (12) and between the right bevel gear (21) and the right gear mounting disc (22).
4. An electronically controlled differential according to claim 2, wherein: the input shaft (3) comprises an input shaft body (31), two ends of the input shaft body (31) are respectively provided with an input shaft gear (32), and the two input shaft gears (32) are respectively meshed with planetary gears (5) arranged on the left planetary gear bracket (1) and the right planetary gear bracket (2).
5. The electronically controlled differential according to claim 4, wherein: the input shaft (3) further comprises an input shaft connecting disc (33), the input shaft connecting disc (33) is installed on the input shaft body (31), and a mounting hole (34) is formed in the input shaft connecting disc (33).
6. An electronically controlled differential according to claim 2, wherein: the output shaft (4) comprises an output shaft body (41) and an output shaft gear (42), the output shaft gear (42) is installed at one end of the output shaft body (41), and the output shaft gear (42) is meshed with the planetary gear (5).
7. An electronically controlled differential according to claim 2, wherein: the number of the planetary gears (5) is more than 3, each planetary gear (5) comprises a planetary gear body (51) and a planetary gear shaft (52), the planetary gear shafts (52) are mounted on the left planetary gear support (1) and the right planetary gear support (2), and the planetary gear bodies (51) are mounted on the planetary gear shafts (52).
8. An electronically controlled differential according to claim 1, wherein: the steering control system (8) further comprises a left speed regulation control rack (88) and a right speed regulation control rack (89), the left speed regulation control mechanism (86) comprises a left speed regulation control rotating shaft (861), a left speed regulation controller (862) and a left speed regulation control gear (863), the right speed regulation control mechanism (87) comprises a right speed regulation control rotating shaft (871), a right speed regulation controller (872) and a right speed regulation control gear (873), the left speed regulation controller (862) is sleeved on the left speed regulation control rotating shaft (861), the left speed regulation control gear (863) is sleeved on the left speed regulation controller (862), the left speed regulation control gear (863) is matched with the left speed regulation control rack (88), the right speed regulation controller (872) is sleeved on the right speed regulation control rotating shaft (871), the right speed regulation control gear (873) is sleeved on the right speed regulation control gear (872), and the right speed regulation control gear (873) is matched with the right speed regulation control rack (89).
9. An electronically controlled differential according to claim 1, wherein: the steering control system (8) further comprises a steering gear (810), a steering rack (811), a steering wheel (812) and a steering shaft (813), the steering wheel (812) is connected with the steering shaft (813), the steering gear (810) is sleeved on the steering shaft (813), the steering gear (810) is meshed with the steering rack (811), and the left speed regulation control mechanism (86) and the right speed regulation control mechanism (87) are both installed on the steering rack (811).
10. An electronically controlled differential according to claim 1, wherein: steering control system (8) still includes worm wheel (81), worm (82), motor (83) and motor controller (84), worm wheel (81) and open differential cooperation, worm wheel (81) and worm (82) meshing, worm (82) are connected with the motor shaft of motor (83), motor (83) are connected with motor controller (84), motor controller (84) are connected with left speed governing control mechanism (86) and right speed governing control mechanism (87).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011122349.4A CN112128340A (en) | 2020-10-20 | 2020-10-20 | Electric control differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011122349.4A CN112128340A (en) | 2020-10-20 | 2020-10-20 | Electric control differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112128340A true CN112128340A (en) | 2020-12-25 |
Family
ID=73852671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011122349.4A Pending CN112128340A (en) | 2020-10-20 | 2020-10-20 | Electric control differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112128340A (en) |
-
2020
- 2020-10-20 CN CN202011122349.4A patent/CN112128340A/en active Pending
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