Hydraulically-driven hinged ice and snow removing operation platform

Abstract

The utility model discloses a hydraulic drive hinged ice and snow removal operation platform, which belongs to the technical field of snow sweeper chassis and comprises a chassis assembly and a power assembly, the chassis assembly comprises a front frame and a rear frame hinged with the front frame, a front PTO is mounted at the front end of the front frame, a front axle and a front wheel set are mounted at the lower end of the front frame, and a rear axle is mounted at the rear end of the front frame. A front PTO is installed at the front end of the rear frame, a rear PTO is installed at the rear end of the rear frame, a rear axle and a rear wheel set are installed at the lower end of the rear frame, the power assembly comprises an engine installed on the rear frame, the engine is connected with an input shaft of a transfer case through a coupler, and the output end of the transfer case is connected with the front PTO, the rear PTO and a hydraulic pump. The hydraulic pump supplies oil to the front hydraulic motor and the rear hydraulic motor through the flow distributing and collecting valve, the front hydraulic motor and the rear hydraulic motor are connected to the front drive axle and the rear drive axle through splines, speed reduction and torque increase are achieved through the main speed reducer and the hub reduction gear, and therefore the front wheel set and the rear wheel set are driven. The utility model has the advantages of flexibility, convenience, convenience in operation and stronger function expansion performance.

Description

Technical Field

[0001] This utility model relates to the field of snowplow chassis technology, specifically to a hydraulically driven articulated snow and ice removal platform. Background Technology

[0002] Snowplows are efficient equipment used to remove snow and ice from roads and are suitable for clearing narrow roads.

[0003] Conventional snowplows are large in size and have a large turning radius due to their internal layout, which makes them inefficient on narrow roads and sometimes even unable to operate normally. Utility Model Content

[0004] The present invention aims to solve the technical problems mentioned in the background section above by providing a hydraulically driven articulated de-icing and snow removal platform that overcomes the challenges of narrow environments and effectively reduces the turning radius.

[0005] The technical solution provided by this utility model is: a hydraulically driven articulated snow and ice removal platform, comprising:

[0006] The chassis assembly includes a front frame and a rear frame articulated thereto. A front-mounted PTO is mounted at the front end of the front frame, and a front axle and front wheel set are mounted at the lower end of the front frame. A rear-mounted PTO is mounted at the rear end of the rear frame, and a rear axle and rear wheel set are mounted at the lower end of the rear frame.

[0007] The powertrain includes an engine mounted on the rear frame. The engine is connected to the input shaft of the transfer case via a coupling. The output of the transfer case is connected to the front PTO, the rear PTO, and a hydraulic pump. The hydraulic pump supplies oil to the front and rear hydraulic motors through a flow divider valve. The front and rear hydraulic motors are connected to the front and rear drive axles via splines. The speed is reduced and the torque is increased through the final drive and wheel-side reducers, thereby driving the front and rear wheel sets.

[0008] In some embodiments, the rear end of the front frame is provided with a first concave portion and a second concave portion arranged vertically. Both the first and second concave portions are provided with vertical pin holes, and a hinge pin is provided in the pin holes. The front end of the rear frame is provided with a first convex portion located in the first concave portion and a second convex portion located in the second concave portion. The first and second convex portions are provided with vertical through holes corresponding to the pin holes. A bushing is installed in each through hole. A pad is provided between the upper end of the first convex portion and the lower end of the first concave portion, and a pad is provided between the lower end of the second convex portion and the upper end of the second concave portion.

[0009] In some embodiments, a cab is mounted on the front frame, the cab is bolted to the front frame, and rubber isolation pads are used for shock absorption.

[0010] In some embodiments, the hydraulic pump is a dual pump, which includes a closed axial piston pump and an open gear pump. The closed axial piston pump supplies oil to the front and rear hydraulic motors through a hydraulically controlled directional valve to meet the different load requirements of the front and rear hydraulic motors, and the hydraulic motors are directly connected to the front and rear axles to realize hydraulic four-wheel drive.

[0011] In some embodiments, the hydraulic motor is a variable displacement motor.

[0012] In some embodiments, the hydraulic pump is a dual pump, which includes a closed axial piston pump and an open gear pump. The open gear pump provides the accumulator with the hydraulic fluid required for hydraulic braking through a priority valve and a filling valve. When braking the vehicle, the accumulator supplies oil to the wet brakes of the front and rear axles through a parallel dual-path regulating brake valve, thereby realizing the braking of the snowplow.

[0013] In some embodiments, the hydraulic pump is a dual pump, which includes a closed axial piston pump and an open gear pump. The open gear pump supplies oil to the steering cylinder through a priority valve and a fully hydraulic steering gear, thereby enabling the snowplow to steer.

[0014] In some embodiments, the hydraulic pump is a dual pump, which includes a closed axial piston pump and an open gear pump. The open gear pump supplies oil to the cylinder through a multi-way valve, thereby controlling the extension and retraction of the hydraulic cylinder, thus realizing the lifting and swinging of the snow removal equipment.

[0015] In some embodiments, the input shaft of the transfer case is connected to the first output terminal of the front PTO and the third output terminal of the rear PTO via a hydraulic clutch, and the transfer case is also provided with a second output terminal connected to a hydraulic pump.

[0016] The advantages of this utility model compared with the prior art are as follows: 1. The snowplow platform of this utility model adopts a hydraulic drive mode. The hydrostatic drive adopts a structure of one pump and two motors. The single motor is directly connected to the center of the axle and directly drives the axle, providing ample power; 2. The snowplow platform of this utility model adopts an articulated body design, which effectively reduces the turning radius; 3. The vehicle has multiple power output ports and strong functional expansion capabilities. There are PTO power output ports at the front and rear of the vehicle, and the hydraulic output meets the operational requirements of the snowplow under different working conditions.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the snowplow operation platform according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the hinged parts of the front and rear frames according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the working principle of the transfer case according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the snowplow chassis according to an embodiment of the present invention.

[0022] In the attached diagram: 1. Cab; 2. Front-mounted PTO; 3. Front axle; 4. Rear axle; 5. Rear-mounted PTO; 6. Engine; 7. Fuel tank; 8. Articulated joint; 9. Solenoid valve assembly; 10. Hinge pin; 11. Pad; 12. Bushing; 13. Rear frame; 14. First concave portion; 15. Second concave portion; 16. First convex portion; 17. Front frame; 18. Input shaft; 19. Third output end; 20. First output end; 21. Hydraulic clutch; 22. Second output end; 23. Radiator; 24. Oil pipe. Detailed Implementation

[0023] The present invention will now be described in further detail.

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] Combination Figure 1 , Figure 2 As shown, this embodiment is a hydraulically driven articulated snow removal platform. In order to improve the flexibility of the snow removal vehicle platform, the chassis adopts a split design in terms of vehicle structure, which is divided into a front frame 17 and a rear frame 13. The front and rear frames are connected by a pin hinge, which is simple to install and convenient to replace and maintain. This embodiment adopts a pin sleeve hinge structure, which is mainly composed of a hinge pin 10, a bushing 12 and a pad 11. The bushing 12 is assembled in the hinge hole of the rear frame 13. The hinge pin 10 rotates relative to the bushing 12, and the pad 11 plays a role in axial positioning and reducing friction.

[0026] The cab 1 is mounted on the front frame 17 of the chassis. The cab 1 is connected to the front frame 17 by bolts and uses rubber isolation pads to achieve shock absorption.

[0027] The engine 6 is mounted on the rear frame 13. The engine 6 is fixed at four points. The four corners of the front and rear of the engine 6 are attached to brackets. The brackets are connected to the corner pads. The four corner pads are attached to the rear frame 13. Align the mounting holes of the brackets with the mounting holes on the engine 6 to ensure good contact between the bottom surface of the bracket and the engine 6. Use bolts of appropriate length. The bolts should pass through the bottom holes of the bracket and the corner pads and enter the reserved holes of the rear frame 13. Place the corner pads at the bottom of the brackets to ensure that the center of the pads is aligned with the contact surfaces of the bracket and the rear frame 13.

[0028] The front frame 17 has a front-mounted PTO 2 mounted at its front end, and the front axle 3 and front wheel assembly are mounted at the lower end of the front frame 17. The rear frame 13 has a rear-mounted PTO 5 mounted at its rear end. The PTO power take-off method is designed based on engine parameters. The PTO power and speed ratio are determined by the actual working conditions of the attached implements. The PTO power take-off position can be determined according to the actual situation to facilitate power take-off by the attached implements.

[0029] The rear axle 4 and rear wheel set are installed at the lower end of the rear frame 13. The front (rear) frame and the front (rear) axle are connected by high-strength bolts and hexagonal nuts. The material of the nuts matches the bolts. Washers are placed between the nuts and the connecting surfaces to prevent the nuts from loosening and reduce wear. Aligned connecting holes are provided on the frame and axle. The diameter of the holes matches the bolts to ensure that the bolts can be installed smoothly. A snowplow and snow brush mounting rack is provided at the front of the cab 1. The snowplow, snow brush and mounting rack are installed by three-point suspension.

[0030] In terms of power, combined with Figure 3 , Figure 4 As shown, the flywheel of engine 6 is connected to the transfer case via a flexible coupling. The flexible coupling connects engine 6 and the transfer case, ensuring smooth power transmission while absorbing a certain amount of vibration and displacement.

[0031] The transfer case has three outputs. Input shaft 18 outputs power to the front PTO2 (first output terminal 20), one output to the rear PTO5 (third output terminal 19), and one output to the hydraulic pump (second output terminal 22). Hydraulic clutch 21 controls the first output terminal 20 and the third output terminal 19. During operation, the clutch is engaged, and the PTO outputs power. During relocation, the clutch is disengaged, and the PTO cuts off the power output.

[0032] The hydraulic pump is a dual pump, and the hydraulic motors are variable displacement motors, with one variable displacement motor installed on each of the front and rear axles. The dual pump includes a closed axial piston pump and an open gear pump. When the vehicle moves forward or backward, the closed axial piston pump supplies oil to the front and rear variable displacement motors via a hydraulically controlled directional valve to meet the different load requirements of the front and rear hydraulic motors, thereby achieving synchronous operation of the snowplow under off-center load conditions. The variable displacement motors are directly connected to the drive components of the front and rear axles via splines. Finally, the speed is reduced and torque is increased through the final drive and wheel-side reducers to drive the wheels on both sides, achieving four-wheel drive. Reversing the vehicle is achieved by changing the direction of the hydraulic oil flow.

[0033] When the vehicle brakes, the open gear pump provides the accumulator with the hydraulic fluid required for hydraulic braking through the priority valve and the charging valve. When the vehicle brakes, the accumulator supplies oil to the wet brakes of the front and rear axles through the parallel dual-circuit regulating brake valve, thereby realizing the braking of the snowplow.

[0034] When the vehicle turns, the open gear pump supplies oil to the steering cylinder through the priority valve and the fully hydraulic steering gear, thereby enabling the snowplow to turn.

[0035] When hydraulic output is performed, the open gear pump supplies oil to the cylinder through a multi-way valve, thereby controlling the extension and retraction of the hydraulic cylinder, thus realizing the lifting and swinging of the snow removal equipment.

[0036] The snowplow platform in this embodiment features an articulated body design, which effectively reduces the turning radius and offers flexibility, convenience, and easy operation. The drive system adopts a 4×4 hydraulic drive mode, providing ample power. The maximum transfer speed is set at 35 km / h, and the working speed is 15 km / h. To improve operational efficiency, it needs to have the technical capability to operate multiple working devices simultaneously, achieving multi-functionality. The vehicle has one PTO power output port at the front and one at the rear, and the hydraulic output meets the operational requirements of the snowplow under different working conditions. It also has multiple sets (no less than 5 sets at the front and 4 sets at the rear) of hydraulic output, providing strong functional expansion capabilities.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A hydraulically driven articulated snow and ice removal platform, characterized in that, include: The chassis assembly includes a front frame (17) and a rear frame (13) articulated thereto. A front PTO (2) is mounted on the front end of the front frame (17), a front axle (3) and a front wheel set are mounted on the lower end of the front frame (17), a rear PTO (5) is mounted on the rear end of the rear frame (13), and a rear axle (4) and a rear wheel set are mounted on the lower end of the rear frame (13). The powertrain includes an engine (6) mounted on the rear frame (13), the engine (6) being connected to the input shaft (18) of the transfer case via a coupling, the output end of the transfer case being connected to the front PTO (2), the rear PTO (5) and a hydraulic pump respectively, the hydraulic pump supplying oil to the front and rear hydraulic motors via a flow divider valve, the front and rear hydraulic motors being connected to the front drive axle and the rear drive axle via splines, and achieving speed reduction and torque increase through the main reducer and wheel-side reducer, thereby driving the front wheel set and the rear wheel set; The front frame (17) has a first concave part (14) and a second concave part (15) arranged vertically at its rear end. Both the first concave part (14) and the second concave part (15) have vertical pin holes, and a hinge pin (10) is provided in the pin hole. The front end of the rear frame (13) has a first convex part (16) located in the first concave part (14) and a second convex part located in the second concave part (15). The first convex part (16) and the second convex part have vertical through holes corresponding to the pin holes. A bushing (12) is installed in each of the through holes. A pad (11) is provided between the upper end of the first convex part (16) and the lower end of the first concave part (14). A pad (11) is provided between the lower end of the second convex part and the upper end of the second concave part (15).

2. The hydraulically driven articulated snow and ice removal platform according to claim 1, characterized in that: The cab (1) is mounted on the front frame (17). The cab (1) is connected to the front frame (17) by bolts and uses rubber isolation pads to achieve shock absorption.

3. The hydraulically driven articulated snow and ice removal platform according to claim 1, characterized in that: The hydraulic pump is a dual pump, which includes a closed axial piston pump and an open gear pump. The closed axial piston pump supplies oil to the front and rear hydraulic motors through a hydraulically controlled directional valve to meet the different load requirements of the front and rear hydraulic motors. The hydraulic motors are directly connected to the front and rear axles to achieve hydraulic four-wheel drive.

4. The hydraulically driven articulated snow and ice removal platform according to claim 3, characterized in that: The hydraulic motor is a variable displacement motor.

5. The hydraulically driven articulated snow and ice removal platform according to claim 1, characterized in that: The hydraulic pump is a dual pump, which includes a closed axial piston pump and an open gear pump. The open gear pump provides the accumulator with the hydraulic fluid required for hydraulic braking through a priority valve and a charging valve. When braking the vehicle, the accumulator supplies oil to the wet brakes of the front and rear axles through a parallel dual-path regulating brake valve, thereby realizing the braking of the snowplow.

6. The hydraulically driven articulated snow and ice removal platform according to claim 1, characterized in that: The hydraulic pump is a dual pump, which includes a closed axial piston pump and an open gear pump. The open gear pump supplies oil to the steering cylinder through a priority valve and a fully hydraulic steering gear, thereby enabling the snowplow to steer.

7. The hydraulically driven articulated snow and ice removal platform according to claim 1, characterized in that: The hydraulic pump is a dual pump, which includes a closed axial piston pump and an open gear pump. The open gear pump supplies oil to the cylinder through a multi-way valve, thereby controlling the extension and retraction of the hydraulic cylinder, thus realizing the lifting and swinging of the snow removal equipment.

8. The hydraulically driven articulated snow and ice removal platform according to claim 1, characterized in that: The input shaft (18) of the transfer case is connected to the first output end (20) of the front PTO (2) and the third output end (19) of the rear PTO (5) via a hydraulic clutch (21). The transfer case is also provided with a second output end (22) connected to a hydraulic pump.

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