Chassis assembly and snow and ice removing vehicle

Abstract

According to the chassis assembly and the snow and ice removing vehicle, the chassis assembly comprises a vehicle frame, a front drive assembly, a rear drive assembly and a transmission case, the front drive assembly comprises front wheels, the rear drive assembly comprises rear wheels, and the front drive assembly and the rear drive assembly are arranged in the extending direction of the vehicle frame at intervals; the transmission case is arranged on the frame and located between the front-drive assembly and the rear-drive assembly, the input end of the transmission case is suitable for being connected with an engine, the chassis assembly has a front-drive hydraulic drive mode and a rear-drive mechanical drive mode, and in the front-drive hydraulic drive mode, the transmission case is connected with the front-drive assembly to drive front wheels to operate at a first preset speed; in the rear-drive mechanical driving mode, the transmission case is connected with the rear-drive assembly to drive the rear wheels to run at a second preset speed, and the second preset speed is larger than the first preset speed. The chassis assembly has the advantages of being high in flexibility and the like.

Description

Technical Field

[0001] The invention relates to the technical field of snow and ice removal vehicles, and in particular to a chassis assembly and a snow and ice removal vehicle. Background Art

[0002] In the related art, the chassis of the snowplow is modified from an ordinary truck chassis or engineering machinery, and most of them adopt a single drive mode, either pure mechanical drive or pure hydraulic drive. This design cannot flexibly adjust the vehicle speed according to different operating scenarios, resulting in limited performance during low-speed and high-speed operations. Snowplows with a single drive mode have low operating efficiency under different working conditions. For example, when performing low-speed ice breaking operations on urban streets, if pure mechanical drive is used, due to the power matching problem of the vehicle, it is impossible to achieve low-speed stable driving, and thus it is impossible to perform ice removal operations stably. When performing high-speed snow removal operations on highways, if pure hydraulic drive is used, the driving force of the vehicle is insufficient and it cannot travel at high speed, so it is impossible to quickly clear the snow on the road, which can easily cause traffic congestion and affect the normal travel of vehicles. Summary of the invention

[0003] The present invention provides a chassis assembly to solve the defect that the chassis of a snow and ice removal vehicle in the prior art cannot meet the requirements of various operating conditions under a single driving mode, so that the snow and ice removal vehicle can flexibly adapt to various operating conditions.

[0004] An embodiment of the present invention discloses a chassis assembly, comprising: Frame; A front drive assembly and a rear drive assembly, wherein the front drive assembly includes a front wheel, the rear drive assembly includes a rear wheel, and the front drive assembly and the rear drive assembly are arranged at intervals in the extending direction of the frame; A transmission box, the transmission box is arranged on the frame and located between the front drive assembly and the rear drive assembly, and the input end of the transmission box is suitable for connecting to the engine; The chassis assembly has a front-wheel drive hydraulic driving mode and a rear-wheel drive mechanical driving mode. In the front-wheel drive hydraulic driving mode, the transmission box is connected to the front-wheel drive assembly to drive the front wheels to run at a first preset speed; In the rear-wheel drive mechanical driving mode, the transmission box is connected to the rear-wheel drive assembly to drive the rear wheels to run at a second preset speed, which is greater than the first preset speed.

[0005] In some embodiments, the chassis assembly has an all-wheel drive mode, in which the transmission case is connected to both the front drive assembly and the rear drive assembly to drive the front wheels and the rear wheels to operate at a third preset speed.

[0006] In some embodiments, the transmission box includes an input shaft, a main output shaft and a secondary output shaft, the input end of the input shaft is connected to the engine, the output end of the main output shaft is connected to the rear drive assembly, and the output end of the secondary output shaft is connected to the front drive assembly; In the front-wheel drive hydraulic drive mode, the input shaft is linked to the auxiliary output shaft, and the input shaft is disconnected from the main output shaft; In the rear-wheel drive mechanical driving mode, the input shaft is linked with the main output shaft, and the input shaft is disconnected from the auxiliary output shaft; In the all-wheel drive mode, the input shaft is linked with both the main output shaft and the auxiliary output shaft.

[0007] In some embodiments, the transmission box includes a clutch, which is arranged between the input shaft and the main output shaft. The axis of the input shaft is colinearly arranged with the axis of the main output shaft. The clutch has an engaged state and a disengaged state. In the engaged state, the input shaft and the main output shaft are linked; in the disengaged state, the input shaft and the main output shaft are separated.

[0008] In some embodiments, the transmission box comprises: A first gear, the first gear is arranged on the input shaft, the first gear has a fixed state and a rotating state, in which the first gear is non-rotatably connected to the input shaft in the fixed state, and in the rotating state, the first gear can rotate relative to the input shaft; a second gear, the second gear being arranged on the auxiliary output shaft and being non-rotatably connected to the auxiliary output shaft, the auxiliary output shaft being arranged on one side of the main output shaft in a radial direction and being spaced apart from the main output shaft, the first gear being meshed with the second gear; A coupling sleeve is slidably disposed on the input shaft, and is used to control the first gear to switch between the fixed state and the rotating state.

[0009] In some embodiments, the transmission box includes a hydraulic pump, the front drive assembly includes a hydraulic motor, the output end of the hydraulic motor is connected to the front wheel, the input end of the hydraulic pump is connected to the output end of the secondary output shaft, and the output end of the hydraulic pump is connected to the input end of the hydraulic motor.

[0010] In some embodiments, the chassis assembly includes a transmission shaft, which is arranged on the frame and located between the transmission box and the rear drive assembly. The main output shaft is arranged higher than the auxiliary output shaft in the height direction of the frame. The input end of the transmission shaft is connected to the output end of the main output shaft, and the output end of the transmission shaft is connected to the rear drive assembly. An installation area is provided below the transmission shaft for installing a snow and ice removal assembly.

[0011] In some embodiments, the chassis assembly includes a drop box, the input end of the drop box is arranged higher than the output end of the drop box, the input end of the drop box is connected to the transmission shaft, and the output end of the drop box is connected to the rear wheel.

[0012] In some embodiments, the chassis assembly includes a bracket, which is disposed at a front end of the frame and is suitable for mounting a snow and ice removal component.

[0013] An embodiment of the present invention discloses a snow and ice removal vehicle, comprising: A chassis assembly, wherein the chassis assembly is the chassis assembly described in any one of the above embodiments; A snow and ice removal component is provided in the installation area, and / or the snow and ice removal component is provided on the bracket.

[0014] The snow and ice removal vehicle of the embodiment of the present invention can exert the best performance in different scenarios and meet various operation requirements by switching between the front-drive hydraulic drive mode and the rear-drive mechanical drive mode. Whether it is low-speed precision operation on urban streets or high-speed and efficient operation on highways, the chassis assembly of the embodiment of the present invention can handle it. Moreover, the operating speeds of the front-drive hydraulic drive mode and the rear-drive mechanical drive mode are different to adapt to different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the chassis assembly provided by the present invention.

[0017] Figure 2 It is a transmission schematic diagram of the transmission box of the chassis assembly provided by the present invention.

[0018] Figure 3 It is a schematic diagram of the principle of the transmission box of the chassis assembly provided by the present invention.

[0019] Reference numerals: 1. Frame; 2. Front drive assembly; 21. Front wheel; 3. Rear drive assembly; 31. Rear wheel; 4. Transmission box; 41. Input shaft; 42. Main output shaft; 43. Secondary output shaft; 44. Clutch; 45. First gear; 46. Second gear; 47. Coupling sleeve; 48. Hydraulic pump; 5. Transmission shaft; 51. Installation area; 6. Drop box; 7. Bracket; 8. Hydraulic motor; 9. Controller; 10. Control switch; 11. Engine. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] An embodiment of the present invention discloses a snow and ice removal vehicle, which includes a chassis assembly and a snow and ice removal component.

[0022] like Figures 1 to 3 As shown, the chassis assembly of the embodiment of the present invention includes a vehicle frame 1 , a front drive assembly 2 , a rear drive assembly 3 and a transmission box 4 .

[0023] The front drive assembly 2 includes a front wheel 21 , and the rear drive assembly 3 includes a rear wheel 31 . The front drive assembly 2 and the rear drive assembly 3 are arranged at intervals in the extending direction of the vehicle frame 1 .

[0024] The transmission box 4 is arranged on the vehicle frame 1 and is located between the front drive assembly 2 and the rear drive assembly 3 . The input end of the transmission box 4 is suitable for being connected to the engine 11 .

[0025] The chassis assembly has a front-wheel drive hydraulic drive mode and a rear-wheel drive mechanical drive mode. In the front-wheel drive hydraulic drive mode, a portion of the transmission components between the transmission box 4 and the front-wheel drive assembly 2 are hydraulic elements. For example, the transmission box 4 includes a hydraulic pump 48. At this time, hydraulic energy is used to drive the front wheels 21 to run at a first preset speed.

[0026] In the rear-wheel drive mechanical driving mode, the transmission box 4 and the rear-wheel drive assembly 3 all use mechanical transmission to drive the rear wheel 31 to run at a second preset speed, which is greater than the first preset speed.

[0027] For example, the front drive assembly 2 includes front wheels 21, a suspension system of the front wheels 21, and a front steering drive axle and other components that assist the operation of the front wheels 21. The rear drive assembly 3 includes rear wheels 31, a suspension system of the rear wheels 31, and a rear steering drive axle and other components that assist the operation of the rear wheels 31.

[0028] The second preset speed is greater than the first preset speed, for example, the first preset speed is 0km\h-20km\h, and the second preset speed is 40km\h-80km\h. The second preset speed is greater than the first preset speed, the first preset speed is 0km\h-20km\h, for example, 5km\h, 10km\h and 20km\h.

[0029] The second preset speed is 40km\h-80km\h, for example, the second preset speed is 40km\h, 50km\h, 60km\h and 80km\h, etc.

[0030] The front-wheel drive hydraulic drive mode is mainly used for low-speed stable driving conditions. The rear-wheel drive mechanical drive mode is used for high-speed operation conditions. It should be noted that in the rear-wheel drive mechanical drive mode, the rear wheel 31 can run at the second preset speed, which does not mean that the rear wheel can only run at the second preset speed. In fact, in the rear-wheel drive mechanical drive mode, the operating speed range of the rear wheel 31 is 0km\h-80km\h, but the rear-wheel drive mechanical drive mode cannot stably drive at low speeds, so the rear-wheel drive mechanical drive mode is often used in high-speed operation conditions.

[0031] In the front-wheel hydraulic drive mode, the front wheel 21 is used as the driving wheel and the rear wheel 31 is used as the driven wheel. In this case, the front wheel 21 is used as the driving wheel and the rear wheel 31 is used as the driven wheel, which can provide better directional control and stability, and is particularly suitable for low-speed snow and ice removal operations in complex environments such as urban streets and sidewalks. In this mode, the vehicle can more finely control the operation process, reduce potential damage to ground facilities, and improve the safety and accuracy of the operation.

[0032] In the rear-drive mechanical drive mode, the rear wheel 31 acts as the driving wheel and the front wheel 21 acts as the driven wheel, which can provide stronger driving force and higher driving speed. It is particularly suitable for efficient snow removal in open areas such as highways and airport runways, so that the roads can return to normal as soon as possible, thereby avoiding traffic congestion. In this mode, the vehicle can quickly clear a large amount of snow, improve operating efficiency, and can quickly remove snow on urban roads without affecting the traffic order of urban roads. It can also be used for snow and ice removal on highways and airport runways. In addition, the rear-drive mode can also be used for formation operations. .

[0033] The chassis assembly of the embodiment of the present invention can switch between the front-drive hydraulic drive mode and the rear-drive mechanical drive mode, so that the snow and ice removal vehicle can play the best performance in different scenarios and meet various operation requirements. Whether it is low-speed precision operation on urban streets or high-speed and efficient operation on highways, the chassis assembly of the embodiment of the present invention can handle it. Moreover, the front-drive hydraulic drive mode and the rear-drive mechanical drive mode have different operating speeds to adapt to different working conditions, with strong adaptability and high flexibility.

[0034] Therefore, the chassis assembly of the embodiment of the present invention has advantages such as high flexibility.

[0035] In some embodiments, the chassis assembly has an all-wheel drive mode. In the all-wheel drive mode, the transmission case 4 is connected to both the front drive assembly 2 and the rear drive assembly 3 to drive the front wheels 21 and the rear wheels 31 to run at a third preset speed.

[0036] For example, in the all-wheel drive mode, the chassis assembly distributes the power of the engine 11 to the four wheels, thereby significantly improving the traction of the snow and ice removal vehicle, reducing the risk of slipping, and further improving the vehicle's ability to escape from difficulties so that it can operate on icy and snowy roads.

[0037] It should be noted that in the all-wheel drive mode, the snow and ice removal vehicle has the greatest driving power, but a relatively low speed. For example, the third preset speed is 0km\h-20km\h.

[0038] In some embodiments, Figure 2 and Figure 3 As shown, the transmission box 4 includes an input shaft 41, a main output shaft 42 and an auxiliary output shaft 43. The input end of the input shaft 41 is connected to the engine 11, the output end of the main output shaft 42 is connected to the rear drive component 3, and the output end of the auxiliary output shaft 43 is connected to the front drive component 2.

[0039] In the front-wheel drive hydraulic driving mode, the input shaft 41 is linked with the auxiliary output shaft 43 , and the input shaft 41 is disconnected from the main output shaft 42 .

[0040] In the rear-wheel drive mechanical driving mode, the input shaft 41 is linked with the main output shaft 42 , and the input shaft 41 is disconnected from the auxiliary output shaft 43 .

[0041] In the all-wheel drive mode, the input shaft 41 is linked with both the main output shaft 42 and the auxiliary output shaft 43 .

[0042] The chassis assembly transmission box 4 of the embodiment of the present invention is designed to include an input shaft 41 , a main output shaft 42 and an auxiliary output shaft 43 .

[0043] In the front-wheel drive hydraulic driving mode, the input shaft 41 is linked with the auxiliary output shaft 43, while the input shaft 41 is disconnected from the main output shaft 42. The power of the engine 11 is transmitted to the auxiliary output shaft 43 through the input shaft 41, and then transmitted to the front wheel 21 by the auxiliary output shaft 43.

[0044] In the rear-wheel drive mechanical driving mode, the input shaft 41 is linked with the main output shaft 42, while the input shaft 41 is disconnected from the auxiliary output shaft 43. The power of the engine 11 is transmitted to the main output shaft 42 through the input shaft 41, and then transmitted to the rear wheel 31 by the main output shaft 42.

[0045] In the all-wheel drive mode, the input shaft 41 is linked with both the main output shaft 42 and the auxiliary output shaft 43. The power of the engine 11 is simultaneously transmitted to the main output shaft 42 and the auxiliary output shaft 43, and the front wheels 21 and the rear wheels 31 are driven to rotate.

[0046] In the chassis assembly of the embodiment of the present invention, the transmission box 4 can flexibly switch the power transmission path according to different driving modes to adapt to different operating requirements.

[0047] In some embodiments, the transmission box 4 includes a clutch 44, which is disposed between the input shaft 41 and the main output shaft 42, the axis of the input shaft 41 and the axis of the main output shaft 42 are disposed colinearly, and the clutch 44 has an engaged state and a disengaged state, in which the input shaft 41 and the main output shaft 42 are linked, and in which the input shaft 41 and the main output shaft 42 are disengaged.

[0048] For example, Figure 2 and Figure 3 As shown, when the clutch 44 is in the engaged state, the input shaft 41 and the main output shaft 42 are linked. The power of the engine 11 is transmitted to the main output shaft 42 through the input shaft 41, and then transmitted to the rear wheel 31 by the main output shaft 42. When the clutch 44 is in the disengaged state, the input shaft 41 and the main output shaft 42 are separated. The power of the engine 11 will not be transmitted to the main output shaft 42, and thus cannot be transmitted to the rear wheel 31.

[0049] In the front-wheel drive hydraulic driving mode, the clutch 44 is in a disengaged state. In the rear-wheel drive mechanical driving mode, the clutch 44 is in an engaged state. In the all-wheel drive mode, the clutch 44 is in an engaged state.

[0050] The chassis assembly of the embodiment of the present invention can flexibly control the power transmission path through the clutch 44, so that the snow and ice removal vehicle can perform optimally in different modes. Whether it is a highway that requires high-speed and efficient operation, or a city street that requires low-speed and precise operation, the vehicle can quickly switch according to actual needs to ensure that the operation can be completed efficiently and safely under various working conditions.

[0051] In some embodiments, the transmission box 4 includes a first gear 45, a second gear 46 and a coupling sleeve 47. The first gear 45 is arranged on the input shaft 41. The first gear 45 has a fixed state and a rotating state. In the fixed state, the first gear 45 is fixedly connected to the input shaft 41. In the rotating state, the first gear 45 can rotate relative to the input shaft 41.

[0052] The second gear 46 is disposed on the auxiliary output shaft 43 and is non-rotatably connected to the auxiliary output shaft 43 . The auxiliary output shaft 43 is disposed on one side of the main output shaft 42 in the radial direction and is spaced apart from the main output shaft 42 . The first gear 45 and the second gear 46 are meshed.

[0053] The coupling sleeve 47 is slidably disposed on the input shaft 41 , and the coupling sleeve 47 is used to control the first gear 45 to switch between a fixed state and a rotating state.

[0054] For example, Figure 2 and Figure 3 As shown, the first gear 45 is arranged on the input shaft 41 and has a fixed state and a rotating state. In the fixed state, the first gear 45 is fixedly connected to the input shaft 41, that is, the first gear 45 and the input shaft 41 rotate synchronously as a whole. In the rotating state, the first gear 45 can rotate freely relative to the input shaft 41 and does not transmit power.

[0055] The second gear 46 is disposed on the secondary output shaft 43 and is fixedly connected to the secondary output shaft 43, that is, the second gear 46 and the secondary output shaft 43 always rotate synchronously as a whole. The first gear 45 and the second gear 46 mesh with each other to form a power transmission path. By moving the coupling sleeve 47, the first gear 45 can be fixedly connected to the input shaft 41 or rotated freely, thereby controlling whether the power is transmitted to the secondary output shaft 43.

[0056] In the front-wheel drive hydraulic driving mode, the clutch 44 is in a disengaged state, and the input shaft 41 is separated from the main output shaft 42. At this time, the coupling sleeve 47 slides to the position of the first gear 45, so that the first gear 45 is fixedly connected to the input shaft 41. The power of the engine 11 is transmitted to the first gear 45 through the input shaft 41, and then transmitted to the second gear 46 by the first gear 45, and finally transmitted to the front wheel 21 through the auxiliary output shaft 43.

[0057] In the rear-wheel drive mechanical driving mode, the clutch 44 is in the engaged state, and the input shaft 41 is linked with the main output shaft 42. At this time, the coupling sleeve 47 slides to a position away from the first gear 45, so that the first gear 45 can rotate freely relative to the input shaft 41. The power of the engine 11 is transmitted to the main output shaft 42 through the input shaft 41, and then transmitted to the rear wheel 31 by the main output shaft 42.

[0058] In the all-wheel drive mode, the clutch 44 is in the engaged state, and the input shaft 41 is linked with the main output shaft 42. At the same time, the coupling sleeve 47 is kept in the position of the first gear 45, so that the first gear 45 is fixedly connected with the input shaft 41. The power of the engine 11 is transmitted to the main output shaft 42 and the auxiliary output shaft 43 through the input shaft 41, and drives the front wheel 21 and the rear wheel 31 respectively.

[0059] The chassis assembly of the embodiment of the present invention, by providing an input shaft 41, a main output shaft 42, a secondary output shaft 43, a clutch 44, a first gear 45, a second gear 46 and a coupling sleeve 47, enables the chassis assembly to flexibly switch between a front-wheel drive hydraulic drive mode, a rear-wheel drive mechanical drive mode and an all-wheel drive mode to adapt to different operating scenarios and working conditions.

[0060] Optionally, the state of the clutch 44 and the position of the coupling sleeve 47 can be controlled by a controller 9. A control switch 10 is provided on the controller 9. By starting the corresponding control switch 10, the state of the clutch 44 and the position of the coupling sleeve 47 can be controlled so that the snow and ice removal vehicle can switch between all-wheel drive mode, rear-wheel drive mechanical drive mode and all-wheel drive mode.

[0061] In some embodiments, the transmission box 4 includes a hydraulic pump 48, the front drive assembly 2 includes a hydraulic motor 8, the output end of the hydraulic motor 8 is connected to the front wheel 21, the input end of the hydraulic pump 48 is connected to the output end of the secondary output shaft 43, and the output end of the hydraulic pump 48 is connected to the input end of the hydraulic motor 8.

[0062] For example, Figure 2 and Figure 3 As shown, the hydraulic pump 48 is arranged at the output end of the secondary output shaft 43, and receives power from the input shaft 41 through the secondary output shaft 43. The hydraulic pump 48 converts mechanical energy into hydraulic energy to generate high-pressure liquid. The hydraulic motor 8 is part of the front drive assembly 2, and its output end is connected to the front wheel 21. The input end of the hydraulic motor 8 is connected to the output end of the hydraulic pump 48, receives high-pressure liquid, and converts hydraulic energy into mechanical energy to drive the front wheel 21 to rotate.

[0063] Optionally, the hydraulic pump 48 and the hydraulic motor 8 are connected via a hydraulic pipeline.

[0064] The chassis assembly of the embodiment of the present invention utilizes the hydraulic pump 48 and the hydraulic motor 8 to drive the front wheel 21 to rotate, so that the front wheel 21 can stably maintain low-speed operation, thereby facilitating stable ice-breaking operations.

[0065] In some embodiments, the chassis assembly includes a transmission shaft 5, which is arranged on the frame 1 and located between the transmission box 4 and the rear drive assembly 3. The main output shaft 42 is arranged higher than the auxiliary output shaft 43 in the height direction of the frame 1. The input end of the transmission shaft 5 is connected to the output end of the main output shaft 42, and the output end of the transmission shaft 5 is connected to the rear drive assembly 3. An installation area 51 is provided below the transmission shaft 5 for installing a snow and ice removal assembly.

[0066] For example, Figure 2 and Figure 3 As shown, the transmission shaft 5 is arranged higher than the lower wing surface of the frame 1 in the height direction (up and down direction) of the frame 1, so that a large space can be reserved below the transmission shaft 5 to arrange the snow and ice removal components. The snow and ice removal components include snow removal roller brushes, ice removal rollers and other components.

[0067] The chassis assembly of the embodiment of the present invention, by arranging the transmission shaft 5 at a higher position, leaves a larger space below the lower wing surface of the frame 1, so that the installation of the snow removal roller brush and the de-icing roller is more flexible. The operator can select appropriate components for installation according to the actual operation without worrying about space limitations.

[0068] In some embodiments, the chassis assembly includes a step-down box 6 , the input end of the step-down box 6 is arranged higher than the output end of the step-down box 6 , the input end of the step-down box 6 is connected to the transmission shaft 5 , and the output end of the step-down box 6 is connected to the rear wheel 31 .

[0069] For example, Figure 2 and Figure 3 As shown, since the transmission shaft 5 is located at a relatively high position, in order to make the transmission shaft 5 match the rear drive assembly 3 , a step-down box 6 is provided to transmit the power of the transmission shaft 5 to the rear wheel 31 .

[0070] Optionally, two rotating shafts and multiple gears are provided in the reduction box 6, and each rotating shaft is also provided with a gear. One rotating shaft is connected to the transmission shaft 5, and one rotating shaft is connected to the rear wheel 31. Multiple gears are arranged between the two rotating shafts. The rotating shaft connected to the transmission shaft 5 transmits power to the rotating shaft connected to the rear wheel 31 through multiple gears.

[0071] In some embodiments, the chassis assembly includes a bracket 7, which is disposed at the front end of the frame 1 and is suitable for installing a snow and ice removal component.

[0072] For example, Figure 2 and Figure 3 As shown, the front-to-back direction is Figure 2 and Figure 3 As shown, a bracket 7 is provided at the front end of the vehicle frame 1, and the snow and ice removal assembly can also be installed on the bracket 7. For example, the snow and ice removal assembly includes a snow pusher, and the snow pusher is installed on the bracket 7.

[0073] The snow and ice removal vehicle of the embodiment of the present invention comprises a chassis assembly and a snow and ice removal component. The chassis assembly is the chassis assembly of any one of the above embodiments. The snow and ice removal component is arranged in the installation area 51 and / or the snow and ice removal component is arranged on the bracket 7.

[0074] For example, the snow and ice removal assembly can be arranged on the installation area 51 or the bracket 7 according to needs or the functions of its various components.

[0075] The snow and ice removal vehicle equipped with the chassis assembly of the embodiment of the present invention adopts hydraulic drive in the front-wheel drive hydraulic drive mode so that the snow and ice removal vehicle can stably travel at a low speed (0km\h-20km\h), thereby facilitating low-speed deicing operations. In the rear-wheel drive mechanical drive mode, mechanical drive is adopted so that the snow and ice removal vehicle can travel at a high speed (40km\h-80km\h), so that it is suitable for the snow and ice removal vehicle formation or individual operation on airport runways, highways, mountain roads, etc., so as to quickly remove snow without affecting the normal operation of the road. In the all-wheel drive mode, the snow and ice removal vehicle can be used for snow and ice removal operations in harsh environments such as ordinary icy and snowy roads and steep slope roads in mountainous areas, and the all-wheel drive mode can also be used to get out of trouble when the vehicle is trapped.

[0076] The snow and ice removal vehicle of the embodiment of the present invention can exert optimal performance in different scenarios and meet various operational requirements by switching between the front-wheel drive hydraulic drive mode, the rear-wheel drive mechanical drive mode and the all-wheel drive mode, so as to adapt to different working conditions.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A chassis assembly, characterized in that: include: Frame; A front drive assembly and a rear drive assembly, wherein the front drive assembly includes a front wheel, the rear drive assembly includes a rear wheel, and the front drive assembly and the rear drive assembly are arranged at intervals in the extending direction of the frame; A transmission box, the transmission box is arranged on the frame and located between the front drive assembly and the rear drive assembly, and the input end of the transmission box is suitable for connecting to the engine; The chassis assembly has a front-wheel drive hydraulic driving mode and a rear-wheel drive mechanical driving mode. In the front-wheel drive hydraulic driving mode, the transmission box is connected to the front-wheel drive assembly to drive the front wheels to run at a first preset speed; In the rear-wheel drive mechanical driving mode, the transmission box is connected to the rear-wheel drive assembly to drive the rear wheels to run at a second preset speed, which is greater than the first preset speed.

2. The chassis assembly according to claim 1, characterized in that: The chassis assembly has an all-wheel drive mode, in which the transmission case is connected to both the front drive assembly and the rear drive assembly to drive the front wheels and the rear wheels to run at a third preset speed.

3. The chassis assembly according to claim 2, characterized in that: The transmission box comprises an input shaft, a main output shaft and a secondary output shaft, the input end of the input shaft is connected to the engine, the output end of the main output shaft is connected to the rear drive assembly, and the output end of the secondary output shaft is connected to the front drive assembly; In the front-wheel drive hydraulic drive mode, the input shaft is linked to the auxiliary output shaft, and the input shaft is disconnected from the main output shaft; In the rear-wheel drive mechanical driving mode, the input shaft is linked with the main output shaft, and the input shaft is disconnected from the auxiliary output shaft; In the all-wheel drive mode, the input shaft is linked with both the main output shaft and the auxiliary output shaft.

4. The chassis assembly according to claim 3, characterized in that: The transmission box includes a clutch, which is arranged between the input shaft and the main output shaft. The axis of the input shaft is arranged colinearly with the axis of the main output shaft. The clutch has an engaged state and a disengaged state. In the engaged state, the input shaft and the main output shaft are linked; in the disengaged state, the input shaft and the main output shaft are separated.

5. The chassis assembly according to claim 4, characterized in that: The transmission box comprises: A first gear, the first gear is arranged on the input shaft, the first gear has a fixed state and a rotating state, in which the first gear is non-rotatably connected to the input shaft in the fixed state, and in the rotating state, the first gear can rotate relative to the input shaft; a second gear, the second gear being arranged on the auxiliary output shaft and being non-rotatably connected to the auxiliary output shaft, the auxiliary output shaft being arranged on one side of the main output shaft in a radial direction and being spaced apart from the main output shaft, the first gear being meshed with the second gear; A coupling sleeve is slidably disposed on the input shaft, and is used to control the first gear to switch between the fixed state and the rotating state.

6. The chassis assembly according to claim 3, characterized in that: The transmission box includes a hydraulic pump, the front drive assembly includes a hydraulic motor, the output end of the hydraulic motor is connected to the front wheel, the input end of the hydraulic pump is connected to the output end of the secondary output shaft, and the output end of the hydraulic pump is connected to the input end of the hydraulic motor.

7. The chassis assembly according to claim 3, characterized in that: The chassis assembly includes a transmission shaft, which is arranged on the frame and located between the transmission box and the rear drive assembly. The main output shaft is arranged higher than the auxiliary output shaft in the height direction of the frame. The input end of the transmission shaft is connected to the output end of the main output shaft, and the output end of the transmission shaft is connected to the rear drive assembly. An installation area is provided below the transmission shaft for installing a snow and ice removal assembly.

8. The chassis assembly according to claim 7, characterized in that: The chassis assembly includes a drop box, the input end of the drop box is arranged higher than the output end of the drop box, the input end of the drop box is connected to the transmission shaft, and the output end of the drop box is connected to the rear wheel.

9. The chassis assembly according to claim 1, characterized in that: The chassis assembly comprises a bracket, which is arranged at the front end of the frame and is suitable for installing a snow and ice removal component.

10. A snow and ice removal vehicle, characterized in that: include: A chassis assembly, wherein the chassis assembly is a chassis assembly according to any one of claims 1 to 9; A snow and ice removal component is provided in the installation area, and / or the snow and ice removal component is provided on the bracket.

Images