CN209521485U - A kind of all-terrain vehicle chassis suitable for complex working condition - Google Patents

Abstract

The utility model relates to an all-terrain vehicle chassis suitable for complex working conditions, which comprises a chassis, a running device and an independent suspension device. The device is connected to the chassis of the vehicle. The utility model is suitable for the chassis of all-terrain vehicles under complex working conditions. The running device can realize the mutual conversion between the wheel type and the crawler type according to the terrain on which the vehicle travels. On a flat hard road, it can be converted into a wheel type, thereby improving driving speed and reduce power consumption; on soft ground, it can be converted into a crawler form, thereby increasing the ground contact area, improving traction, and improving passability. The utility model adopts a new type of walking device, which cooperates with an independent suspension device, which can realize the rapid conversion of the wheel type and the crawler type form of the all-terrain vehicle according to different working conditions, reduce energy consumption and improve work efficiency while improving passability.

Description

An all-terrain vehicle chassis suitable for complex working conditions

technical field

The utility model relates to an all-terrain vehicle chassis suitable for complex working conditions, which belongs to the technical field of vehicle chassis.

Background technique

An all-terrain vehicle refers to a vehicle that can run on any terrain, and can walk freely on terrain where ordinary vehicles are difficult to maneuver. This type of vehicle has multiple uses and is less restricted by road conditions. At present, vehicles mainly include wheeled and crawler-type vehicles, and different models need to be selected for different working terrains.

Wheeled vehicles are suitable for flat and hard roads, and have the advantages of simple structure, high speed, simple control, flexible maneuverability, and low energy consumption. However, they are not suitable for crossing ravines, muddy roads, etc., and have poor obstacle surmountability and passability.

Tracked vehicles are suitable for soft ground with complex terrain. Compared with wheeled vehicles, they have stronger terrain adaptability, higher obstacle-surmounting ability and good environmental adaptability in complex environments. However, due to the large frictional resistance, It consumes a lot of energy and travels at low speeds.

For complex intertwined working conditions such as flat, rugged, ravines, gravel, water, mud, etc., a single walking method can no longer meet the needs.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides an all-terrain vehicle chassis suitable for complex working conditions.

The technical scheme of the utility model is as follows:

An all-terrain vehicle chassis suitable for complex working conditions, including a chassis, a running device and an independent suspension device. frame connection.

Preferably, the walking device includes a planetary gear reduction mechanism, a movable combined hub mechanism and a rubber crawler transmission mechanism; the planetary gear reduction mechanism is connected to the movable combined hub mechanism through a telescopic device and a support rod, and the movable combined hub mechanism is made to work through the telescopic device. The hub mechanism changes the external shape; the rubber crawler transmission mechanism is connected with the movable combined hub mechanism, and when the external shape of the movable combined hub mechanism changes, the conversion between the wheel form and the crawler form of the rubber crawler transmission mechanism is realized.

Preferably, the planetary gear reduction mechanism includes a front planetary carrier, a rear planetary carrier, a drive shaft, a sun gear, a planet shaft, a planetary wheel and a clutch; the sun gear is fixedly mounted on the drive shaft, the drive shaft passes through the rear planet carrier, and the planetary gear The three planetary gears mesh with the sun gear, the planetary shaft is installed and connected between the front planetary carrier and the rear planetary carrier, and the clutch is installed between the drive shaft and the rear planetary carrier.

Preferably, the planetary gear reduction mechanism further includes a brake installed between the rear planet carrier and the undercarriage.

Preferably, the telescopic device includes a hydraulic cylinder, an air cylinder, and an electric cylinder.

Preferably, the movable combined hub mechanism includes a hub plate, a reinforcement plate and a load-bearing shaft; the hydraulic cylinder is fixedly installed on the front planetary carrier, and the two sides of the hydraulic cylinder pillar are symmetrically hinged to the hub plate, and each side of the hub plate is correspondingly connected by the load-bearing shaft A reinforcing plate, one end of the support rod is hinged with the hub plate, and the other end is hinged with the front planetary carrier or the rear planetary carrier.

Preferably, the movable combined hub mechanism includes twelve hub plates, and every four hub plates are symmetrically hinged on both sides of the same hydraulic cylinder pillar. The advantage of this design is that twelve hub plates can be used to form a circular wheel hub, and at least three hydraulic cylinders can be used to realize the transformation between twelve hub plates between the circular wheel hub and the track shape.

Preferably, the rubber track transmission mechanism includes a rubber track, a driving wheel, and a load-bearing wheel; the drive wheel is installed on the planetary shaft and fixedly connected to the planetary wheel, and there is a drive wheel at each of the left and right ends of the planetary wheel, and the load-bearing wheel is installed on the hub plate On the load-bearing shaft between the reinforcement plate and the rubber track wraps the driving wheel and the load-bearing wheel, and the inner side of the rubber track meshes with the driving wheel.

Preferably, four bearing wheels are arranged between the hub plate and the reinforcing plate.

Preferably, the independent suspension device includes an upper swing arm, a lower swing arm, a steering bracket, a shock absorber and a steering link; one end of the upper swing arm is hinged to the steering bracket and the shock absorber, and the other end is hinged to the vehicle chassis , the other end of the shock absorber is hinged with the vehicle chassis, the two ends of the lower swing arm are respectively hinged with the steering bracket and the vehicle chassis, the steering link is hinged with the steering bracket, and the steering bracket is fixedly connected with the brake.

The beneficial effects of the utility model are:

The utility model is suitable for the chassis of all-terrain vehicles under complex working conditions. The running device can realize the mutual conversion between the wheel type and the crawler type according to the terrain on which the vehicle travels. On a flat hard road, it can be converted into a wheel type, thereby improving driving speed and reduce power consumption; on soft ground, it can be converted into a crawler form, thereby increasing the ground contact area, improving traction, and improving passability. The utility model adopts a new type of walking device, which cooperates with an independent suspension device, which can realize the rapid conversion of the wheel type and the crawler type form of the all-terrain vehicle according to different working conditions, reduce energy consumption and improve work efficiency while improving passability.

Description of drawings

Fig. 1 is a structural schematic diagram of a wheeled form of an all-terrain vehicle chassis;

Fig. 2 is a schematic structural diagram of the wheeled form of the all-terrain vehicle chassis;

Fig. 3 is a schematic structural diagram of the crawler form of the all-terrain vehicle chassis;

Fig. 4 is a structural schematic diagram of the wheeled form of the running device in the chassis of the all-terrain vehicle;

Fig. 5 is a structural schematic diagram of the connection mode between the traveling device and the independent suspension device in the all-terrain vehicle chassis;

Fig. 6 is a schematic structural view of the crawler form of the running device in the chassis of the all-terrain vehicle;

Fig. 7 is a structural schematic diagram of the wheel hub in the wheeled form of the traveling device in the chassis of the all-terrain vehicle;

Fig. 8 is a structural schematic diagram of the wheel hub in the crawler form of the traveling device in the all-terrain vehicle chassis;

Fig. 9 is a structural schematic diagram of the planetary reduction mechanism of the traveling device in the all-terrain vehicle chassis;

Figure 10 is a schematic diagram of the installation of the movable hub plate and load-bearing wheels of the running gear in the all-terrain vehicle chassis;

In the figure: 1- undercarriage; 2- running gear; 201- planetary gear reduction mechanism; 2011- front planetary carrier; 2012- rear planetary carrier; 2013- drive shaft; 2014- sun gear; 2015- planetary shaft; 2016- Planetary wheel; 2017-brake; 2018-clutch; 2019-universal coupling; 202-movable combined hub mechanism; 2021-hub plate; 2022-hydraulic cylinder pillar; 2023-hydraulic cylinder; Reinforcement plate; 2026-bearing shaft; 203-rubber track transmission mechanism; 2031-rubber track; 2032-driving wheel; 2033-loading wheel; 3-independent suspension device; 301-upper swing arm; Bracket; 304-shock absorber; 305-direction machine connecting rod.

Detailed ways

The utility model will be further described below through the embodiments in conjunction with the accompanying drawings, but not limited thereto.

Example 1:

As shown in Figures 1 to 10, this embodiment provides an all-terrain vehicle chassis suitable for complex working conditions, including a chassis 1, a running device 2 and an independent suspension device 3, and the chassis 1 is symmetrically arranged front, rear, left, and right There are four running gears 2, and each running gear 2 is connected with the undercarriage 1 through an independent suspension device 3.

Wherein, the traveling device 2 includes a planetary gear reduction mechanism 201, a movable combined hub mechanism 202 and a rubber crawler transmission mechanism 203; the planetary gear reduction mechanism 201 is connected with the movable combined hub mechanism 202 through a telescopic device and a support rod 2024, and works through a telescopic device. Make the movable combined hub mechanism 202 change external shape; transition between forms.

Planetary gear reduction mechanism 201 comprises front planet carrier 2011, rear planet carrier 2012, drive shaft 2013, sun gear 2014, planet shaft 2015, planet gear 2016 and clutch 2018; Sun gear 2014 is fixedly installed on drive shaft 2013, and drive shaft 2013 wears After the planetary carrier 2012, the planetary gear 2016 is connected and installed on the planetary shaft 2015 through bearings, and the three planetary gears 2016 are meshed with the sun gear 2014, and combined with the front planetary carrier 2011 and the rear planetary carrier 2012 to form a planetary row, and the planetary shaft 2015 is installed Connected between the front planet carrier 2011 and the rear planet carrier 2012 , the clutch 2018 is installed between the drive shaft 2013 and the rear planet carrier 2012 . The clutch 2018 here is used to connect or disconnect the rear planetary carrier 2012 and the drive shaft 2013, thereby determining whether the planetary carrier rotates synchronously with the drive shaft 2013 and the sun gear 2014.

The planetary gear reduction mechanism 201 also includes a brake 2017, the brake 2017 is installed between the rear planetary carrier 2012 and the undercarriage 1, and the brake 2017 here is mainly used to keep the planetary carrier and the undercarriage stationary to realize planetary transmission. In this embodiment, the brake 2017 and the clutch 2018 are conventional equipment.

In this embodiment, the telescopic device selects the hydraulic cylinder 2023, and there are three hydraulic cylinders 2023 installed on the front planet carrier 2011, and the three hydraulic cylinders 2023 are distributed at equal intervals, and the hydraulic cylinder pillar 2022 (piston rod) is a T-shaped structure. The front end is a T-shaped block.

The movable combined hub mechanism 202 includes a hub plate 2021, a reinforcing plate 2025 and a bearing shaft 2026; the hydraulic cylinder 2023 is fixedly installed on the front planet carrier 2011, and the two sides of the hydraulic cylinder pillar 2022 are symmetrically hinged to the hub plate 2021 (one end of the hub plate is hinged on the T On the block), the hub plate 2021 on each side is connected to the reinforcement plate 2025 through the bearing shaft 2026, and one end of the support rod 2024 is hinged with the hub plate 2021, and the other end is hinged with the front planetary carrier 2011 or the rear planetary carrier 2012. At this time, the hub plate 2021, the hydraulic cylinder strut 2022, the hydraulic cylinder 2023 and the support rod 2024 form a four-bar linkage with a moving pair. In this embodiment, twelve hub plates 2021 form the wheel hub mechanism, six of which are installed at the left and right ends, and every four hub plates 2021 are symmetrically hinged on both sides of the same hydraulic cylinder pillar 2022 . Twelve hub plates can be used to form a circular wheel hub, and at least three hydraulic cylinders can be used to realize the transformation between twelve hub plates between the circular wheel hub and the track shape, with fewer components and low cost.

The rubber track transmission mechanism 203 includes a rubber track 2031, a driving wheel 2032, and a load-bearing wheel 2033; the driving wheel 2032 is installed on the planetary shaft 2015 and is fixedly connected to the planetary wheel 2016, and each of the left and right ends of the planetary wheel 2016 has a driving wheel 2032, and the driving wheel 2032 rotates synchronously with the planetary wheel 2016, the load-bearing wheel 2033 is installed on the load-bearing shaft 2026 between the hub plate 2021 and the reinforcement plate 2025, four load-bearing wheels 2033 are arranged between the hub plate 2021 and the reinforcement plate 2025, and the rubber track 2031 is wrapped The driving wheel 2032 and the bearing wheel 2033, and the inner side of the rubber track 2031 is engaged with the driving wheel 2032.

Independent suspension device 3 comprises upper swing arm 301, lower swing arm 302, steering bracket 303, shock absorber 304 and direction machine connecting rod 305; The underframe 1 is hinged, the other end of the shock absorber 304 is hinged with the underframe 1, the two ends of the lower swing arm 302 are respectively hinged with the steering bracket 303 and the underframe 1, the steering link 305 is hinged with the steering bracket 303, and the steering bracket 303 is fixedly connected with the brake 2017 through a flange.

The underframe 1 is a prior art, and according to different requirements, the underframe of conventional engineering vehicles can be used to complete the chassis transformation of different engineering vehicles.

Example 2:

An all-terrain vehicle chassis suitable for complex working conditions, the structure of which is as described in Embodiment 1, the difference lies in that the telescopic device adopts a cylinder. According to the different requirements of the vehicle, different telescopic devices can be selected to meet the personalized configuration.

Example 3:

An all-terrain vehicle chassis suitable for complex working conditions, the structure of which is as described in Embodiment 1, the difference is that the telescopic device uses an electric cylinder.

Example 4:

A method for using an all-terrain vehicle chassis suitable for complex working conditions, using the technical solution of embodiment 1, the specific operation process is as follows:

Install the chassis of an all-terrain vehicle on the vehicle body, such as the body of an engineering forklift. When driving in a wheeled form on a hard road, the hydraulic cylinder 2023 retracts the hydraulic cylinder pillar 2022, and the hub plate 2021 shrinks inward to form a circular hub. The brake 2017 is separated, the clutch 2018 is engaged to lock the planetary row, and the entire planetary row and the rubber crawler 2031 rotate synchronously with the drive shaft 2013, thereby realizing the conversion from the crawler type to the wheel type;

or

When driving in a crawler form on complex roads, the brake 2017 is engaged, the clutch 2018 is disengaged, the drive shaft 2013 drives the sun gear 2014, the sun gear 2014 drives the planetary gear 2016, and then drives the drive wheel 2032 to drive the rubber track 2031, and the hydraulic cylinder 2023 rises The hydraulic cylinder strut 2022 and the hub plate 2021 spread out to form a triangular hub, thereby realizing the transformation from the wheel type to the crawler type.

Claims (8)

1. a kind of all-terrain vehicle chassis suitable for complex working condition, which is characterized in that including body frame, running gear and independence Suspension arrangement, body frame are all around symmetrical arranged there are four running gear, and each running gear passes through independent suspension device It is connect with body frame；

The running gear includes planetary gear reducing mechanism, movable composition formula hub mechanism and rubber track drive mechanism；Row Star gear reduction is connected by telescopic device, support rod and movable composition formula hub mechanism, is made by telescopic device work Movable composition formula hub mechanism changes outer shape；Rubber track drive mechanism is connect with movable composition formula hub mechanism, works as work When dynamic Combined hub mechanism outer shape changes, between the wheeled form and crawler type form of realization rubber track drive mechanism Conversion.

2. all-terrain vehicle chassis as described in claim 1, which is characterized in that the planetary gear reducing mechanism includes moving ahead Carrier, rear planet carrier, drive shaft, sun gear, planet axis, planetary gear and clutch；Sun gear is fixedly mounted on the driving shaft, drives Moving axis passes through rear planet carrier, and planetary gear is mounted in planet axis by bearing connection, and three planetary gears are meshed with sun gear, row Star axis is installed and connected between preceding planet carrier and rear planet carrier, and clutch is installed between drive shaft and rear planet carrier.

3. all-terrain vehicle chassis as claimed in claim 2, which is characterized in that the planetary gear reducing mechanism further includes system Dynamic device, brake are installed between rear planet carrier and body frame.

4. all-terrain vehicle chassis as claimed in claim 2, which is characterized in that the telescopic device include hydraulic cylinder, cylinder, Electric cylinder.

5. all-terrain vehicle chassis as claimed in claim 4, which is characterized in that the movable composition formula hub mechanism includes hub Plate, stiffening plate and load-bearing axle；Hydraulic cylinder be fixedly mounted on before on planet carrier, the symmetrical hinged hub plate in the two sides of hydraulic cylinder pillar, often Side hub plate is correspondingly connected with stiffening plate by load-bearing axle, support rod one end and hub plate is hinged, the other end and preceding planet carrier or rear planet Frame is hinged.

6. all-terrain vehicle chassis as claimed in claim 5, which is characterized in that the movable composition formula hub mechanism includes ten Two blocks of hub plates, every four blocks of hub plates are symmetrically articulated with the two sides of same hydraulic cylinder pillar.

7. all-terrain vehicle chassis as claimed in claim 5, which is characterized in that the rubber track drive mechanism includes rubber Crawler belt, driving wheel, carrying roller；Driving wheel is installed on planet axis and is fixedly connected on planetary gear, and planetary gear left and right ends respectively have One driving wheel, carrying roller are mounted in the load-bearing axle between hub plate and stiffening plate, and rubber belt track is wrapped in driving wheel and load-bearing Wheel, and engaged on the inside of rubber belt track with driving wheel；There are four carrying rollers for arrangement between the hub plate and stiffening plate.

8. all-terrain vehicle chassis as claimed in claim 3, which is characterized in that the independent suspension device include upper swing arm, Lower swing arm, steering bracket, damper and steering wheel connecting rod；One end of upper swing arm and steering bracket and damper are respectively articulated with, separately One end is hinged with body frame, and the other end and body frame of damper are hinged, lower swing arm both ends respectively with steering bracket and body frame Hingedly, steering wheel connecting rod is hinged with steering bracket, and steering bracket is fixedly connected with brake.