CN210302395U

CN210302395U - Chassis of four-wheel drive high-speed remote control car

Info

Publication number: CN210302395U
Application number: CN201921124607.5U
Authority: CN
Inventors: 王介环
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-04-14
Anticipated expiration: 2029-07-16

Abstract

The utility model provides a chassis of high-speed telecar of four-wheel drive, includes vehicle bottom plate, front wheel subassembly, rear wheel subassembly and establishes the transmission shaft at the vehicle bottom plate, the front wheel subassembly includes front drive shaft, front drive shaft with be equipped with first differential case between the transmission shaft, first differential case includes first box, overlaps in the drive gear group of transmission shaft one end, drive gear group internally mounted has the first little bevel gear of transverse output, still be equipped with two first differential gears in the first box, and two first differential gear respectively with first little bevel gear meshes, and the differential case occupies that the volume is littleer, and preceding when wheel turn receives the resistance on one side, the differential case can distribute power to wheel on one side in addition to it is faster to make the telecar turn speed, and stability is better, and the wheel is grabbed ground performance is good, is difficult to appear the phenomenon of skidding.

Description

Chassis of four-wheel drive high-speed remote control car

Technical Field

The utility model relates to a children's toy car technical field especially relates to a chassis of high-speed telecar is driven to four.

Background

The steering mechanism of the existing remote control car is generally fixed and unchangeable, when the remote control car turns in high-speed running, the distance traveled is different due to the difference of the inner diameter and the outer diameter of two wheels, and the two wheels rotate at the same speed, so that when the remote control car turns, the wheels rub with the ground, turning action is laborious and inflexible, the turning and slipping phenomena can occur due to the same rotating speed of the inner side wheel and the outer side wheel of the high-speed turning, and the high-speed stable turning can not be realized due to the fact that the speed of the remote control car is higher, but the total mass is slightly lighter, and the turning speed is slow and unstable.

In view of the above, it is desirable to provide a chassis of a four-wheel-drive high-speed remote control car, which can solve the above technical problems.

Disclosure of Invention

The utility model aims to provide a: the chassis of the four-wheel-drive high-speed remote control vehicle overcomes the defects of the prior art and has high turning speed and good control turning stability.

In order to realize the above-mentioned purpose, the utility model provides a chassis of high-speed telecar of four-wheel drive, include vehicle bottom plate, front wheel subassembly, rear wheel subassembly and establish the transmission shaft at the vehicle bottom plate, the front wheel subassembly includes front drive shaft, front drive shaft with be equipped with first differential case between the transmission shaft, first differential case includes first box, overlaps in the drive gear group of transmission shaft one end, drive gear group internally mounted has the first little bevel gear of horizontal output, still be equipped with two first differential gears in the first box, and two first differential gear respectively with first little bevel gear meshing.

In order to realize that the differential case occupies that the volume is smaller, optimize the structure of telecar, drive gear group including overlap in the first driving gear of transmission shaft one end, with first driven gear of first driving gear meshing, first driven gear shaft hole is equipped with first chamber position, first little bevel gear is installed on first chamber position, first driven gear and wherein one first differential gear is located on the homonymy front drive shaft of front wheel subassembly, another first differential gear is located on the opposite side front drive shaft of front wheel subassembly.

In order to realize more stable transmission of the power device, the first driving gear and the first driven gear are two meshed bevel gears.

In order to enable the remote control car to be more stable in the high-speed running process, the front wheel assembly further comprises a suspension and wheels which are fixed on two sides of the box body, and the front driving shaft penetrates through shaft holes at two ends of the suspension to be in transmission connection with the wheels.

In order to realize that the steering device controls the wheels to turn, a steering device is further arranged between the vehicle bottom plate and the front wheel assembly, the steering device comprises a power-assisted motor, a steering pull rod fixedly connected with the output end of the power-assisted motor, a steering frame and a steering connecting rod connected with the two ends of the steering frame, the steering frame can be installed in the vehicle bottom plate in a left-right rotating mode, and the other end of the connecting rod is connected with the wheels.

In order to realize that the left wheel and the right wheel of the rear wheel assembly rotate at different speeds, the rear wheel assembly comprises a rear driving shaft provided with wheels, and a second differential case is arranged between the driving shaft and the rear driving shaft.

In order to realize that the driving stability of the rear wheel assembly is better, the second differential case comprises a second case body, a second driving gear sleeved at the other end of the transmission shaft, a second driven gear meshed with the second driving gear and second small bevel gears arranged on a second cavity of a second driven gear shaft hole, and two second differential gears respectively meshed with the second small bevel gears on the second cavity are further arranged in the second case body.

In order to make the remote control vehicle more stable and buffer and absorb shock during driving, the front wheel assembly and the rear wheel assembly respectively further comprise a buffer device which plays a role in buffering the remote control vehicle, and the buffer devices are buffer springs or shock absorbers.

In order to realize that the first differential case can distribute power to wheels on the other side, four first cavity positions are arranged in the shaft hole of the first driven gear, and corresponding four first small bevel gears are arranged on the cavity positions.

In order to realize that the power device drives the transmission shaft to rotate, the transmission shaft is provided with a gear set and is in transmission connection with the power device through the gear set.

Compared with the prior art, the utility model, have following advantage:

the utility model discloses be equipped with first differential case, the transmission shaft passes through the rotation of first differential case drive both sides wheel, utilize the wheel rotational speed of first differential case automatically regulated front wheel subassembly both sides, the wheel rotational speed of second differential case automatically regulated rear wheel subassembly both sides, during the telecar high speed driving process, steering device control front wheel subassembly turns, when wheel turning on one side received the resistance before, two differential cases can distribute power to the wheel on the other side, thereby make the telecar turn speed faster, stability is better, the wheel grabs ground can be good, the phenomenon of skidding is difficult to appear; a first cavity position is arranged in the first driven gear shaft hole, and the first small bevel gear is arranged on the first cavity position, so that the differential case occupies a smaller volume, and the structure of the remote control car is optimized; the suspension also comprises a buffer spring or a shock absorber, so that the remote control car is more stable and can absorb shock in the running process, and the service life of the remote control car is prolonged.

The present invention will be further described with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without inventive labor.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the power transmission structure of the present invention.

Fig. 3 is an exploded view of the first differential case and the front drive shaft of the present invention.

Fig. 4 is a three-dimensional structure diagram of the gear set of the present invention.

Fig. 5 is an exploded view of the second differential case and the rear drive shaft of the present invention.

Fig. 6 is a front view of the driven gear and the small bevel gear of the present invention.

Fig. 7 is a schematic perspective view of the steering device and the wheel according to the present invention.

Fig. 8 is a schematic perspective view of the front wheel assembly and the wheel of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, the utility model relates to a chassis of four-wheel drive high-speed telecar, include vehicle bottom plate 1, front wheel subassembly 2, rear wheel subassembly 3 and establish at vehicle bottom plate 1's transmission shaft 8, front wheel subassembly 2 includes front drive shaft 21, be equipped with first differential case 4 between transmission shaft 8 and the front drive shaft 21.

As shown in fig. 3-4, the first differential case 4 includes a first case 41 and a driving gear set 43 sleeved at one end of the transmission shaft 8, a first small bevel gear 42 for transverse output is installed inside the driving gear set 42, two first differential gears 44 are further disposed inside the first case 41, and the two first differential gears 44 are respectively engaged with the first small bevel gear 42. The driving gear set 43 includes a first driving gear 431 sleeved on one end of the transmission shaft 8, a first driven gear 432 engaged with the first driving gear 431, the first cavity 441 is arranged on the shaft hole of the first driven gear 432, the first small bevel gear 42 is arranged on the first cavity 441, the first driven gear 432 and one of the first differential gears 44 are provided on the same-side front drive shaft 21 of the front wheel assembly 2, the other first differential gear 44 is provided on the other side front drive shaft 21 of the front wheel assembly 2, the first driving gear 431 and the first driven gear 432 are two meshed bevel gears, and the driven gear 432, the bevel pinion 42 and the differential gear 44 of the first differential case 4 are engaged to allow the left and right wheels to rotate at different speeds, so that when the front wheel 7 receives resistance to turning, the first differential case 4 distributes power to the other wheel 7.

As shown in fig. 6, four first cavities 441 are formed in the shaft hole of the first driven gear 432, and four corresponding first small bevel teeth 42 are mounted on the first cavities 441.

As shown in fig. 7, a steering device 6 matched with the front wheel assembly 2 is further arranged on the vehicle bottom plate 1, the steering device 6 comprises a power-assisted motor 61, a steering pull rod 62 fixedly connected with an output end of the power-assisted motor 61, a bogie 63, and a steering connecting rod 64 connected with two ends of the bogie 63, the bogie 63 can be installed in the vehicle bottom plate 1 in a left-right rotating mode, the other end of the connecting rod 64 is connected with the wheels 7, the power-assisted motor 61 is started, the power-assisted motor 61 drives the bogie 63 to rotate left and right through the steering pull rod 62, and therefore the wheels 7 are driven to turn through the connecting rod 64, and the steering device 6 controls the wheels 7 to.

As shown in fig. 8, the front wheel assembly 2 further includes suspensions 22 and wheels 7 fixed on two sides of the box 41, the front driving shaft 21 penetrates through shaft holes at two ends of the suspensions 22 to be in transmission connection with the wheels 7, the suspensions 22 adopt a structure of a plurality of connecting rods to enhance the stability of the remote control car, the front wheel assembly 2 and the rear wheel assembly 3 further include buffer devices 23 for buffering the remote control car, and the buffer devices 23 are buffer springs or shock absorbers.

Furthermore, a gear set is arranged on the transmission shaft 8, the transmission shaft 8 is in transmission connection with a power device of the vehicle through the gear set, and the specific power device consists of a motor and the gear set.

Further, as another optimized solution of the present embodiment, as shown in fig. 5, the rear wheel assembly 3 includes a rear driving shaft 31 mounted with wheels, a second differential case 5 is disposed between the driving shaft 8 and the rear driving shaft 31, the second differential case 5 includes a second case 51, a second driving gear 53 sleeved at the other end of the driving shaft 8, a second driven gear 54 engaged with the second driving gear 53, and a second small bevel gear 52 mounted on a second cavity 541 in a shaft hole of the second driven gear 54, the second case 51 is further provided with two second differential gears 55 respectively engaged with the second small bevel gear 52 on the second cavity 541, the driven gear 54 and one of the differential gears 55 are disposed on the same side driving shaft of the rear wheel assembly 3, the other differential gear 55 is disposed on the other side driving shaft of the rear wheel assembly 3, when the front wheel assembly 2 and the wheel 7 on one side of the rear wheel assembly 3 are subjected to resistance during turning, the first differential case 4 can distribute power to the wheel 7 on the other side, so that the turning speed of the remote control vehicle is higher, and the stability is better.

The utility model discloses the theory of operation on chassis of high-speed telecar is driven to four times: when the remote control is used for controlling the turning in the driving process, the power-assisted motor 61 drives the bogie 63 to rotate left and right through the steering pull rod 62, thereby driving the wheels 7 to turn through the connecting rod 64, realizing that the steering device 6 controls the wheels 7 to turn, the transmission shaft drives the wheels at the two sides to rotate through the first differential case, by the cooperation of the first driven gear 432, the small bevel gear 42 and the first differential gear 44 of the first differential case 4, the rotating speed of the wheels 7 at the two sides of the front wheel component 2 can be automatically adjusted, the rotating speed of the wheels 7 at the two sides of the rear wheel component 3 can be automatically adjusted by the second differential case 5, in the running process of the remote control car, the steering device 6 controls the front wheel component 2 to turn, when the front wheel 7 on one side turns, the two differential boxes 4 distribute power to the other wheel 7, thereby make the telecar turn speed faster, stability is better, and the wheel grabs ground performance good, is difficult to appear the phenomenon of skidding.

The present invention has been described in terms of embodiments, but not limitations, and other variations of the disclosed embodiments, as would be readily apparent to one skilled in the art, are intended to be included within the scope of the present invention as defined in the following claims, in view of the description of the present invention.

Claims

1. The utility model provides a chassis of high-speed telecar of four-wheel drive, includes vehicle bottom board (1), front wheel subassembly (2), rear wheel subassembly (3) and establishes transmission shaft (8) at vehicle bottom board (1), front wheel subassembly (2) are including front drive shaft (21), front drive shaft (21) with be equipped with first differential case (4), its characterized in that between transmission shaft (8): first differential case (4) include first box (41), overlap in drive gear group (43) of transmission shaft (8) one end, drive gear group (43) internally mounted has a little bevel gear (42) of horizontal output, still be equipped with two first differential gears (44) in first box (41), and two first differential gear (44) respectively with little bevel gear (42) meshing.

2. The chassis of a four-wheel-drive high-speed remote control vehicle according to claim 1, wherein: the driving gear set (43) comprises a first driving gear (431) sleeved at one end of a transmission shaft (8) and a first driven gear (432) meshed with the first driving gear (431), a first cavity position (441) is arranged in a shaft hole of the first driven gear (432), a first small bevel gear (42) is installed on the first cavity position (441), the first driven gear (432) and one of the first differential gear (44) are arranged on the same-side front driving shaft (21) of the front wheel assembly (2), and the other first differential gear (44) is arranged on the other-side front driving shaft (21) of the front wheel assembly (2).

3. The chassis of a four-wheel drive high-speed remote control vehicle according to claim 2, wherein: the first driving gear (431) and the first driven gear (432) are two meshed bevel gears.

4. The chassis of a four-wheel-drive high-speed remote control vehicle according to claim 1, wherein: the front wheel assembly (2) further comprises a suspension (22) and wheels (7) which are fixed on two sides of the box body (41), and the front driving shaft (21) penetrates through shaft holes at two ends of the suspension (22) to be in transmission connection with the wheels (7).

5. The chassis of a four-wheel-drive high-speed remote control vehicle according to claim 1, wherein: still be equipped with between vehicle bottom board (1) and front wheel subassembly (2) and turn to device (6), turn to device (6) including helping hand motor (61), with helping hand motor (61) output fixed connection's steering linkage (62), bogie (63), with steering linkage (64) that bogie (63) both ends are connected, bogie (63) can be controlled to rotate and install in vehicle bottom board (1), the connecting rod (64) other end is connected with wheel (7).

6. The chassis of a four-wheel-drive high-speed remote control vehicle according to claim 1, wherein: the rear wheel assembly (3) comprises a rear driving shaft (31) provided with wheels (7), and a second differential case (5) is arranged between the driving shaft (8) and the rear driving shaft (31).

7. The chassis of a four-wheel drive high-speed remote control vehicle according to claim 6, wherein: the second differential box (5) comprises a second box body (51), a second driving gear (53) sleeved at the other end of the transmission shaft (8), a second driven gear (54) meshed with the second driving gear (53) and second small bevel gears (52) installed on second cavity positions (541) of shaft holes of the second driven gear (54), wherein the second box body (51) is further provided with two second differential gears (55) respectively meshed with the second small bevel gears (52) on the second cavity positions (541).

8. The chassis of a four-wheel-drive high-speed remote control vehicle according to claim 1, wherein: the front wheel assembly (2) and the rear wheel assembly (3) respectively further comprise a buffer device (23) playing a role in buffering the remote control car, and the buffer device (23) is a buffer spring or a shock absorber.

9. The chassis of a four-wheel-drive high-speed remote control vehicle according to claim 1, wherein: four first cavity positions (441) are arranged in the shaft hole of the first driven gear (44), and four corresponding first small bevel gears (42) are arranged on the first cavity positions (441).

10. The chassis of a four-wheel-drive high-speed remote control vehicle according to claim 1, wherein: and a gear set is arranged on the transmission shaft (8), and the transmission shaft (8) is in transmission connection with the power device through the gear set.