CN112128339A - Pneumatic control differential mechanism - Google Patents
Pneumatic control differential mechanism Download PDFInfo
- Publication number
- CN112128339A CN112128339A CN202011121496.XA CN202011121496A CN112128339A CN 112128339 A CN112128339 A CN 112128339A CN 202011121496 A CN202011121496 A CN 202011121496A CN 112128339 A CN112128339 A CN 112128339A
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- Prior art keywords
- planetary gear
- differential
- shaft
- gear
- air
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Classifications
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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
Abstract
The invention relates to a pneumatic control differential mechanism, and belongs to the field of machinery. The invention comprises an open differential and a steering control system, wherein the steering control system is matched with the open differential, the open differential comprises a left planetary gear bracket, a right planetary gear bracket, an input shaft, an output shaft, a differential gear and a differential shaft, planetary gears are respectively arranged on the left planetary gear bracket and the right planetary gear bracket, the input shaft and the output shaft are respectively matched with the planetary gears, the left planetary gear bracket and the right planetary gear bracket are respectively 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 pneumatic control differential mechanism has the advantages of convenience in control, installation and the like.
Description
Technical Field
The invention relates to a pneumatic 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 pneumatic 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 pneumatic control differential mechanism is structurally characterized in that: the steering control system is matched with the open differential, the open differential comprises a left planetary gear support, a right planetary gear support, an input shaft, an output shaft, a differential gear and a differential shaft, 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.
Further, the planetary gear comprises a planetary gear body and a planetary gear shaft, the planetary gear shaft is mounted on each of the left planetary gear support and the right planetary gear support, and the planetary gear body is mounted on the planetary gear shaft.
Further, the steering control system comprises a clamping groove, a clamping block, an air cylinder, a pneumatic control valve, a pneumatic control switch, a steering wheel, a steering shaft and a switch contact, wherein the clamping groove is formed in the differential shaft, the clamping block is matched with the clamping groove, a piston rod of the air cylinder is connected with the clamping block, a cylinder barrel of the air cylinder is connected with the pneumatic control valve, the pneumatic control valve is connected with the pneumatic control switch, the steering wheel is connected with the steering shaft, the steering shaft is provided with the switch contact, and the switch contact is matched with the pneumatic control switch.
Furthermore, a bayonet is arranged on the clamping block and matched with the clamping groove.
Further, the cylinder barrel of the air cylinder is connected with the pneumatic control valve, the pneumatic control valve is connected with the pneumatic control switch through air pipes, and the pneumatic control valve is connected with the air inlet pipe.
Compared with the prior art, the invention has the following advantages: the steering wheel controls the rotation of the steering shaft, so that a switch contact arranged on the steering shaft triggers the pneumatic control switch, and the opening or closing of the pneumatic control valve is controlled through the pneumatic control switch, so that a piston rod of the air cylinder controls the block to move, the bayonet on the block is contacted with or separated from the clamping groove on the differential shaft, and the control of the open type differential is realized, so that the turning or the straight movement of the vehicle is realized; the open differential controls the left planetary gear support and the right planetary gear support, the pneumatic 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 view of a connection relationship structure of an air-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 an enlarged schematic view of a portion B in fig. 4.
Fig. 6 is a left side view schematic diagram of an open differential according to an embodiment of the present invention.
Fig. 7 is a schematic view of the cross-sectional structure C-C of fig. 6.
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 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,
The device comprises a clamping groove 81, a clamping block 82, an air cylinder 83, an air control valve 84, an air control switch 85, a steering wheel 86, a steering shaft 87, a switch contact 88, an air inlet pipe 89 and a clamping opening 810.
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 7, 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 significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the function and the achievable purpose 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 pneumatic differential mechanism in the embodiment is used for controlling the straight running or turning of a 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 notch 81, a latch 82, an air cylinder 83, an air control valve 84, an air control switch 85, a steering wheel 86, a steering shaft 87, and a switch contact 88, where the notch 81 is disposed on the differential shaft 7, the latch 82 is fitted with the notch 81, the latch 82 is provided with a latch 810, the latch 810 is fitted with the notch 81, a piston rod of the air cylinder 83 is connected with the latch 82, a cylinder barrel of the air cylinder 83 is connected with the air control valve 84, the air control valve 84 is connected with the air control switch 85, the steering wheel 86 is connected with the steering shaft 87, the steering shaft 87 is provided with the switch contact 88, the switch contact 88 is fitted with the air control switch 85, the cylinder barrel of the air cylinder 83 is connected with the air control valve 84, the air control valve 84 is connected with the air control.
The control method of the pneumatic differential mechanism in the embodiment is as follows:
the pneumatic control differential mechanism is adopted to control a 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, the steering wheel 86 is rotated to enable the switch contact 88 arranged on the steering shaft 87 to touch the pneumatic switch 85, the pneumatic switch 85 is further used for controlling the pneumatic valve 84 to be opened, the piston rod of the air cylinder 83 controls the fixture block 82 to move, the bayonet 810 on the fixture block 82 is contacted with the bayonet 81 on the differential shaft 7, the differential wheel 6 is further enabled to stop 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.
And (II) controlling the vehicle to turn by adopting the pneumatic control differential, controlling the open differential by a steering control system 8, further enabling the left planetary gear bracket 1 and the right planetary gear bracket 2 to rotate left and right, and matching the input shaft 3 and the output shaft 4 through a planetary gear 5 to realize the turning of the vehicle.
When the vehicle turns, the differential is adopted to control the vehicle, the steering wheel 86 is rotated to enable the switch contact 88 arranged on the steering shaft 87 to touch the pneumatic control switch 85, the pneumatic control switch 85 is further used to control the pneumatic control valve 84 to be closed, the piston rod of the air cylinder 83 controls the fixture block 82 to move, the bayonet 810 on the fixture block 82 is separated from the bayonet 81 on the differential shaft 7, and the differential wheel 6 is further rotated left and right, so that the left bevel gear 11 and the right bevel gear 21 are rotated left and right; at this time, the input shaft gears 32 installed at both ends of the input shaft body 31 drive the planetary gear bodies 51 to rotate, the output shaft gears 42 installed on the output shaft bodies 41 are driven to rotate by the planetary gear bodies 51, when the vehicle turns left and right, the rotation speeds of the output shaft bodies 41 at both ends are different, the output shaft body 41 at the left end pushes the left planetary gear carrier 1 to rotate right, and the differential gear 6 rotates right, or the output shaft body 41 at the right end pushes the right planetary gear carrier 2 to rotate left, and the differential gear 6 rotates left, so that the vehicle turns.
Specifically, the pneumatic control differential mechanism comprises the following working processes: the steering wheel 86 controls the steering shaft 87 to rotate, so that the switch contact 88 arranged on the steering shaft 87 triggers the pneumatic switch 85, the pneumatic switch 85 controls the opening or closing of the pneumatic valve 84, the piston rod of the air cylinder 83 controls the fixture block 82 to move, the bayonet 810 on the fixture block 82 is in contact with or separated from the bayonet 81 on the differential shaft 7, and the control of the open type differential is further realized, so that the turning or the straight running of the vehicle is realized.
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. A pneumatic control differential mechanism is characterized in that: the open differential mechanism comprises a left planetary gear support (1), a right planetary gear support (2), an input shaft (3), an output shaft (4), a differential wheel (6) and a differential shaft (7), wherein the open differential mechanism comprises 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 gear (5), the left planetary gear support (1) and the right planetary gear support (2) are matched with the differential wheel (6), one end of the differential shaft (7) is connected with the differential wheel (6), and the open differential mechanism (8) is matched with the differential shaft (7).
2. An air controlled differential as claimed in claim 1, 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).
3. An air controlled differential as claimed in claim 1, 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).
4. An air controlled differential as claimed in claim 3, 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).
5. An air controlled differential as claimed in claim 1, 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).
6. An air controlled differential as claimed in claim 1, wherein: the number of the planetary gears (5) is more than 3.
7. An air controlled differential as claimed in claim 1, wherein: the planetary gear (5) comprises a planetary gear body (51) and planetary gear shafts (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 body (51) is mounted on the planetary gear shafts (52).
8. An air controlled differential as claimed in claim 1, wherein: the steering control system (8) comprises a clamping groove (81), a clamping block (82), an air cylinder (83), an air control valve (84), an air control switch (85), a steering wheel (86), a steering shaft (87) and a switch contact (88), wherein the clamping groove (81) is arranged on the differential shaft (7), the clamping block (82) is matched with the clamping groove (81), a piston rod of the air cylinder (83) is connected with the clamping block (82), a cylinder barrel of the air cylinder (83) is connected with the air control valve (84), the air control valve (84) is connected with the air control switch (85), the steering wheel (86) is connected with the steering shaft (87), the steering shaft (87) is provided with the switch contact (88), and the switch contact (88) is matched with the air control switch (85).
9. An air controlled differential according to claim 8, characterized in that: a bayonet (810) is arranged on the clamping block (82), and the bayonet (810) is matched with the clamping groove (81).
10. An air controlled differential according to claim 8, characterized in that: the cylinder barrel of the air cylinder (83) is connected with the pneumatic control valve (84), the pneumatic control valve (84) is connected with the pneumatic control switch (85) through air pipes, and the pneumatic control valve (84) is connected with the air inlet pipe (89).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011121496.XA CN112128339A (en) | 2020-10-20 | 2020-10-20 | Pneumatic control differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011121496.XA CN112128339A (en) | 2020-10-20 | 2020-10-20 | Pneumatic control differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112128339A true CN112128339A (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011121496.XA Pending CN112128339A (en) | 2020-10-20 | 2020-10-20 | Pneumatic control differential mechanism |
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| CN (1) | CN112128339A (en) |
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