CN218084983U - Self-adaptive chassis suspension system based on gear rack transmission mechanism - Google Patents

Abstract

The utility model discloses a based on rack and pinion drive mechanism self-adaptation chassis suspension, its technical scheme includes: chassis support and mecanum wheel, the fixed aluminum pipe of wheelset is all installed to chassis support both sides middle, the fixed aluminum pipe both ends of wheelset are all installed motor installation carbon plate through the bolt pin, install speed reduction direct current motor in the middle of the motor installation carbon plate is inside. The self-adaptive chassis suspension system based on the gear rack transmission mechanism solves the problems that most of existing independent suspensions are mechanically linked to realize work, the existing independent suspensions are complex in structure, large in occupied space, high in cost and inconvenient to maintain, and meanwhile, when the chassis runs on uneven roads, cross arm type independent suspension wheels are easy to automatically steer, and when the chassis is severely impacted, the stability is poor, the anti-roll and braking point capabilities are poor, the stability, the anti-roll and anti-impact capabilities are improved, and meanwhile, the adaptive capacity of the chassis to multiple road conditions is improved.

Description

An Adaptive Chassis Suspension System Based on Rack and Pinion Transmission Mechanism

technical field

The utility model relates to the technical field of chassis suspension systems, in particular to an adaptive chassis suspension system based on a rack and pinion transmission mechanism.

Background technique

Suspension system is a general term for the connecting device between the main body of the mobile unit and the wheel assembly. It is used to transmit force and moment to buffer the impact force caused by uneven road surface and attenuate the vibration caused by it, so as to ensure the stability of the mobile unit. The design of the robot chassis suspension system often determines the applicable environment of the robot. At present, most of the common robot suspensions are independent suspensions. The independent suspension system means that the wheels on each side are individually suspended under the frame or body through the elastic suspension system. Independent of each other and do not interfere with each other.

Existing independent suspension great majority realizes work with mechanical linkage, still there is following defect:

1. The transmission is realized by a complex connecting rod, which has complex structure, large space occupation, high cost and inconvenient maintenance.

2. When driving on uneven roads, the cross-arm independent suspension wheels are easy to turn automatically. When subjected to severe impacts, the stability is poor, and the anti-rolling and braking nodding capabilities are weak.

3. The pure link design of independent suspension will cause great limitations, and will occupy a certain height of the chassis, so that the distance between the chassis and the ground is low, and it is easy to get stuck when climbing or descending steps.

To this end, we propose an adaptive chassis suspension system based on rack and pinion transmission mechanism, which improves its stability, anti-rolling and anti-shock capabilities, and at the same time improves the adaptability of the chassis to multiple road conditions.

Utility model content

The purpose of this utility model is to provide an adaptive chassis suspension system based on a rack and pinion transmission mechanism, which has the advantages of high anti-rolling and impact resistance, and solves the problem that most of the existing independent suspensions work with mechanical linkage. Complicated, large space occupation, high cost, and inconvenient maintenance. When driving on uneven roads, the cross-arm independent suspension wheels are easy to turn automatically. When subjected to severe impacts, the stability is poor, and the anti-rolling and braking ability is weak. The problem.

In order to achieve the above purpose, the utility model provides the following technical solutions: an adaptive chassis suspension system based on a rack and pinion transmission mechanism, including a chassis bracket and a mecanum wheel, wherein a wheel set is installed in the middle of both sides of the chassis bracket to fix Aluminum tube, both ends of the fixed aluminum tube of the wheel set are installed with a motor installation carbon plate through bolt pins, a deceleration DC motor is installed in the middle of the motor installation carbon plate, and the output shaft of the deceleration DC motor is installed through a D-shaped hole flange There are mecanum wheels, and the top of the fixed aluminum tubes on both sides of the wheel group is installed with supporting aluminum profiles near the front and rear surfaces. The top of the carbon plate on which the motor is installed is equipped with a shock-absorbing gas spring through plug screws, and the middle of the top of the chassis bracket A supporting carbon plate is installed, and the MGN12H slider is installed on both sides of the top of the supporting carbon plate through the MGN12 guide rail. The top of the MGN12H slider on both sides is installed with a rack through the carbon plate. All are equipped with connecting aluminum parts, and the ends of the connecting aluminum parts are connected to the ends of the shock-absorbing gas springs.

Preferably, a motor protection case is installed on the outer surface of the motor installation carbon plate, and a brushless motor speed controller is installed on the top of the motor protection case.

Preferably, a micro-flange is installed in the middle of the top of the supporting carbon plate, and a gear is installed on the top of the micro-flange in the middle of the racks on both sides, and the racks on both sides mesh with the gears.

Preferably, the thickness of the fixed aluminum pipe and the connecting aluminum parts of the wheel set is 2 mm.

Preferably, fastening hollow aluminum blocks are installed in the middle of both sides of the bottom of the chassis support through clamping pieces.

Preferably, the outer surface of the plug screw is sleeved with a hollow aluminum tube.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The utility model achieves the effect of fastening and firmly integrating the chassis structure of the car body by setting racks, gears and shock-absorbing gas springs, so as to solve the problem that most of the existing independent suspensions work with mechanical linkage. Complicated, large space occupation, high cost, and inconvenient maintenance. When driving on uneven roads, the cross-arm independent suspension wheels are easy to turn automatically. When subjected to severe impacts, the stability is poor, and the anti-rolling and braking ability is weak. problems, improve its stability, anti-rolling and impact resistance, and at the same time improve the adaptability of the chassis to multiple road conditions.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the three-dimensional structure schematic diagram of the utility model supporting carbon plate and connecting aluminum parts;

Fig. 3 is a three-dimensional structural schematic diagram of a carbon plate and a mecanum wheel mounted on a motor of the present invention.

Reference signs: 1. Mecanum wheel; 2. Carbon plate for motor installation; 3. Motor protection shell; 4. Hollow aluminum tube; 5. Chassis bracket; 6. Deceleration DC motor; 7. Brushless motor governor; 8. D-shaped hole flange; 9. Shock-absorbing gas spring; 10. Fixed aluminum tube for wheel set; 11. Connecting aluminum parts; 12. Supporting aluminum profile; 13. Supporting carbon plate; 14. Gear; 15. Rack; 16 , Miniature flange; 17, MGN12 guide rail; 18, Pad carbon plate; 19, MGN12H slider; 20, fastening hollow aluminum block; 21, clamping parts;

detailed description

The technical scheme of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1-3, in order to achieve the above purpose, the utility model provides the following technical solutions: an adaptive chassis suspension system based on a rack and pinion transmission mechanism, including a chassis bracket 5 and a mecanum wheel 1, and a chassis bracket 5 two The wheel group fixing aluminum tube 10 is installed in the middle of the side, and the two ends of the wheel group fixing aluminum tube 10 are installed with a motor installation carbon plate 2 through bolt pins. The motor installation carbon plate 2 is installed in the middle with a deceleration DC motor 6. 2 The motor protection shell 3 is installed on the outer surface, and the deceleration DC motor 6 is protected through the motor protection shell 3. The brushless motor speed controller 7 is installed on the top of the motor protection shell 3, and the output shaft of the deceleration DC motor 6 passes through the D-shaped hole flange 8 Mecanum wheels 1 are installed, and the top of the fixed aluminum tubes 10 on both sides of the wheel group is equipped with supporting aluminum profiles 12 near the front and rear surfaces, and the top of the motor is installed with carbon plates 2. The shock absorbing gas spring 9 is installed on the top of the carbon plate 2 through plugging screws 22, and the chassis bracket 5 A supporting carbon plate 13 is installed in the middle of the top, and MGN12H sliders 19 are installed on both sides of the top of the supporting carbon plate 13 through the MGN12 guide rail 17, and the top of the MGN12H sliders 19 on both sides is equipped with a rack 15 through a carbon plate 18, and the racks on both sides 15, connecting aluminum parts 11 are installed in the middle of both sides, the ends of the connecting aluminum parts 11 are connected to the ends of the shock-absorbing gas spring 9, and a miniature flange 16 is installed in the middle of the top of the supporting carbon plate 13, and the top of the miniature flange 16 is located on the teeth on both sides. A gear 14 is installed in the middle of the bar 15, and the racks 15 on both sides mesh with the gear 14, so that the chassis support structure is formed as a whole. The thickness of the wheel set fixing aluminum tube 10 and the connecting aluminum piece 11 is 2 mm, and the wheel set fixing aluminum tube 10 is increased. For fixing strength, fastening hollow aluminum blocks 20 are installed in the middle of both sides of the bottom of the chassis support 5 through clamping parts 21, and hollow aluminum tubes 4 are sleeved on the outer surfaces of plug screws 22.

The working principle of an adaptive chassis suspension system based on a rack and pinion transmission mechanism based on the embodiment is: after the utility model is installed, the mecanum wheel 1 is driven to rotate by the deceleration DC motor 6, thereby driving the utility model to move, When encountering uneven roads or descending steps, the Mecanum wheel 1 on one side produces an upward impact. At this time, the motor mounts the carbon plate 2 to rotate to lift it upwards, and pushes the shock absorber through the plug screw 22 on the upper end. The spring 9 performs stroke compression, driving the connecting aluminum part 11 and the rack 15 on one side to move horizontally, so that the other mecanum wheel 1 on this side presses down on the ground, and at the same time, the transmission effect of the gear 14 and the rack 15 will make the The two mecanum wheels 1 on the other side produce the opposite effect, that is, a stronger grip force is produced, so that the four mecanum wheels 1 always move in one plane, so far, the working process of the device is completed.

The above-mentioned specific embodiments are only several preferred embodiments of the present utility model. Based on the technical solutions of the present utility model and the related inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements to the above-mentioned specific embodiments. and combinations.

Claims (6)

1. The utility model provides a based on rack and pinion drive mechanism self-adaptation chassis suspension, includes chassis support (5) and mecanum wheel (1), its characterized in that: all install wheelset fixed aluminum pipe (10) in the middle of chassis support (5) both sides, motor installation carbon plate (2) are all installed through the bolt pin at wheelset fixed aluminum pipe (10) both ends, speed reduction direct current motor (6) are installed to motor installation carbon plate (2) inside middle, mecanum wheel (1) is installed through D type hole ring flange (8) to speed reduction direct current motor (6) output shaft, both sides wheel set fixed aluminum pipe (10) top is close to the front and back surface and all installs support aluminium alloy (12), motor installation carbon plate (2) top is beaten screw (22) through the stopper and is installed shockproof air spring (9), install in the middle of chassis support (5) top and support carbon plate (13), support carbon plate (13) top both sides and install MGN12H slider (19) through MGN12 guide rail (17), both sides rack (15) are installed through bed hedgehopping carbon plate (18) in MGN12H slider (19) top, both sides all install connection aluminium spare (11) in the middle of rack (15) both sides, connect aluminium spare (11) end-to end connection in shockproof aluminium spare (9) of moving away.

2. The adaptive chassis suspension system based on a rack and pinion drive as claimed in claim 1, wherein: the outer surface of the motor installation carbon plate (2) is provided with a motor protection shell (3), and a brushless motor speed regulator (7) is installed at the top of the motor protection shell (3).

3. The adaptive chassis suspension system based on a rack and pinion drive as claimed in claim 1, wherein: the middle of the top of the support carbon plate (13) is provided with a micro flange (16), the top of the micro flange (16) is positioned between the racks (15) on the two sides and is provided with a gear (14), and the racks (15) on the two sides are meshed with the gear (14).

4. The adaptive chassis suspension system based on a rack and pinion drive as claimed in claim 1, wherein: the thickness of the wheel set fixing aluminum pipe (10) and the connecting aluminum piece (11) is 2mm.

5. The adaptive chassis suspension system based on a rack and pinion drive as claimed in claim 1, wherein: the middle of two sides of the bottom of the chassis support (5) is provided with a fastening hollow aluminum block (20) through a clamping piece (21).

6. The adaptive chassis suspension system based on a rack and pinion drive as claimed in claim 1, wherein: the outer surface of the plugging screw (22) is sleeved with a hollow aluminum pipe (4).

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