Agricultural and garden riding type working machine

Abstract

The utility model discloses an agricultural and garden riding type operation machine which comprises a vehicle body frame, an operation unit, a transmission box and a power unit are arranged on the vehicle body frame, the operation unit is located in front of the vehicle body frame, the transmission box is fixed behind the vehicle body frame, and a power connecting port is formed in the side, facing the operation unit, of the transmission box. The power unit is located between the transmission case and the operation unit. The weight of the power unit and the transmission case can be redistributed, so that the weight is centered, the operation machine can adapt to a larger front-back inclination angle when the operation machine reaches an uneven road in a mountainous area or climbs over a ridge, the operation machine runs more stably, the operation comfort is better, the transmission path of power output by the power unit can be shortened, and the operation efficiency is improved. The power loss in the power transmission process is reduced, the needed power transmission structure can be more concise, the manufacturing cost of the operation machine is reduced, and the overall structure of the operation machine can be more compact.

Description

Technical Field

[0001] This utility model relates to a work machine, specifically a ride-on work machine for agricultural and landscaping use. Background Technology

[0002] Existing ride-on agricultural machinery, equipped with seats, allows operators to work while seated, significantly reducing labor intensity and fatigue compared to walking-type agricultural machinery. It also offers easier and more flexible operation, improving accuracy and efficiency. Ride-on agricultural machinery typically comprises several parts, including an energy supply system, a transmission system, and working components. The energy supply primarily uses internal combustion engines and electric motors. The transmission system converts energy into the machine's propulsion. The working components are the core of the machine, directly participating in the operation. Depending on the specific operational needs, these components vary and may include cutters, pick-up devices, plows, and planting devices.

[0003] Existing commonly used ride-on work machines typically employ a front-mounted engine, rear-mounted transmission, and mid-mounted seating unit structure. For example, US Patent Document US6659209B2, a tractor, discloses such a technical solution, where the lawn tractor includes a pair of left and right body frames extending in the longitudinal direction. The engine is mounted at the front of the tractor body, and the transmission is mounted at the rear, both positioned between the pair of left and right body frames. The HST (Hard Drive Unit) is rigidly connected to the front of the transmission housing and connected to the engine via a driveshaft. The front drive axle and the center PTO (Plank To Take) axle extend forward from the transmission, respectively driving the front wheels and the lawnmower. Additionally, a rear PTO axle extends rearward from the transmission to drive the rear working device (not shown). A hydraulic cylinder, integrally formed with its upper surface, is located on the transmission housing for raising and lowering the rear working device and supports the lifting arm axle. The body frame is constructed of plates with vertically extending portions, and the transmission housing is bolted to its inner surface.

[0004] In this existing technology, the front-mounted power unit provides good ventilation and heat dissipation, and is also more stable during operation. However, it suffers from poor operability. Utility Model Content

[0005] To address the technical problem of poor operability in existing ride-on work machines, this utility model provides an agricultural and garden ride-on work machine, including a vehicle frame. The vehicle frame is equipped with an operating unit, a transmission box, and a power unit. The operating unit is located at the front of the vehicle frame, and the transmission box is fixed at the rear of the vehicle frame. The transmission box has a power connection port on the side facing the operating unit, and the power unit is located in the middle of the length of the vehicle frame.

[0006] In existing technologies, the engine is positioned at the front of the work machine, and the gearbox at the rear. This arrangement results in uneven weight distribution between the front and rear wheels, and the machine's weight is off-center. When the work machine travels on uneven mountain roads or traverses field ridges, the off-center weight can lead to poor maneuverability due to tilting. Therefore, in this solution, by placing the heaviest power unit in the middle of the work machine, the weight of the power unit and transmission is redistributed, centralizing the weight and resolving the maneuverability issues caused by the off-center weight when traversing field ridges or slopes.

[0007] Secondly, during the operation of the machine, especially when it needs to frequently turn to avoid crops, frequent turning may cause accidents such as the machine tipping over. With the power unit located in the middle of the machine, the center of gravity of the machine is shifted to the middle position. The central setting of the center of gravity can effectively prevent the machine from tipping over and improve the safety of the machine operation.

[0008] Furthermore, by moving the power unit to the center of the vehicle frame and positioning the power connection port towards the operating unit, the distance between the power unit and the transmission box is shortened. This means the power transmission path is shortened, reducing power loss during transmission and improving power output efficiency. The shortened transmission path also allows for a simpler power transmission structure, reducing manufacturing costs and making the overall structure more compact, better suited for operations in small fields.

[0009] Preferably, a riding unit is also provided on the vehicle frame, located above the power unit or on the side facing the operating unit. Positioning the riding unit in front of or above the power unit avoids unnecessary collisions and scrapes caused by poor visibility due to the forward-positioned power unit. Furthermore, since the power unit is located in the middle of the vehicle frame, this design places the riding unit above the power unit at or near the center of the vehicle frame, effectively centering the machine's center of gravity and further improving its safety and operability.

[0010] Preferably, a fuel tank is also provided below the seating unit. In this design, placing the fuel tank below the seating unit helps to keep the center of gravity of the work machine in or near the center of the vehicle frame, further improving the safety and operability of the work machine.

[0011] Preferably, the input end of the power unit is also equipped with a cooling fan that guides airflow from the input end to the output end of the power unit. Since the power unit emits heat during use, the cooling fan in this design prevents heat from accumulating under the seating unit, thereby reducing discomfort to passengers.

[0012] Preferably, the fuel tank is located at the input end of the power unit. In this design, placing the fuel tank at the input end of the power unit avoids the impact of heat from the power unit on the fuel tank, and also improves the utilization of space under the operator's legs while facilitating refueling.

[0013] Preferably, the transmission box and the power unit are directly connected via a transmission component. This direct connection avoids the space wastage caused by using universal joints or other drive shafts available on the market, further ensuring the compactness of the structure.

[0014] Preferably, the transmission box is also provided with a PTO shaft for connecting the working tool on the side opposite to the operating unit. In this design, the transmission path between the transmission box and the PTO shaft is shortened, thereby improving the power transmission efficiency.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by placing the heaviest power unit in the middle of the work machine, the weight of the power unit and the transmission box can be redistributed, so that the weight is centered. This solves the problem of poor operability when working on ridges or slopes because the weight is far from the center.

[0017] 2. This utility model can effectively center the center of gravity of the work machine. Furthermore, by placing the riding unit above or in front of the power unit, the riding unit is located in the center or near the center of the vehicle frame, thereby effectively centering the center of gravity of the work machine, further improving the safety and operability of the work machine, and effectively preventing the work machine from tipping over.

[0018] 3. This utility model can effectively improve the operating field of vision of the machine. By placing the riding unit in front of or above the power unit, it can avoid unnecessary collisions and scrapes caused by poor operating field of vision due to the front placement of the power unit.

[0019] 4. This utility model avoids the problem of wasted space caused by using universal joints and other drive shafts on the market, and further ensures the compactness of the structure.

[0020] 5. This utility model can shorten the transmission path of the power unit output power, reduce the power loss in the power transmission process, thereby improving the power transmission efficiency. The required power transmission structure can be simpler, reducing the manufacturing cost of the work machine, and the overall structure of the work machine can be more compact. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of Embodiment 1 of the agricultural and garden riding-type work machine of this utility model;

[0022] Figure 2 This is a schematic diagram of Example 2 of an agricultural and garden ride-on work machine. Detailed Implementation

[0023] The following detailed description illustrates the specific implementation method:

[0024] 1. Definition

[0025] Direct-drive transmission: refers to a mechanical transmission method that transmits power and torque by directly connecting two or more rotating parts. Compared with multi-stage transmission and reducer transmission, direct-drive transmission has the following characteristics: 1. Simplicity: Direct-drive transmission has no intermediate transmission device, resulting in a simple structure and convenient maintenance; 2. High efficiency: Because there is no transmission device to cause power loss, direct-drive transmission has relatively high efficiency; 3. Energy saving: The high efficiency of direct-drive transmission reduces energy loss within the system, thus saving energy.

[0026] PTO shaft: Power take-off shaft, used to transmit part of the engine's power to equipment or machinery that requires power.

[0027] 2. The reference numerals in the accompanying drawings of the instruction manual include: 1. Operating unit; 2. Front wheel; 3. Fuel tank; 4. Ride unit; 5. Vehicle frame; 6. Cooling fan; 7. Power unit; 8. Output shaft; 9. Transmission box; 10. PTO shaft; 11. Connecting sleeve.

[0028] Example 1

[0029] The basics are as follows: Figure 1 As shown: an agricultural and garden riding machine, including a vehicle frame 5, on which an operating unit 1, a front walking unit, a fuel tank 3, a riding unit 4, a power unit 7, a transmission box 9 and a rear walking unit are arranged in sequence along the front-to-back direction.

[0030] The operating unit 1 is located in front of the vehicle frame 5. The operating unit 1 includes a steering wheel, accelerator, brake, clutch, etc. The operator controls the operating unit 1 to start, drive, steer and stop the work machine.

[0031] The forward travel unit includes forward travel wheels 2 and a forward travel drive axle, enabling the machine to steer.

[0032] The seating unit 4, which provides a seating position for the operator, is located in the middle of the vehicle frame 5, above the power unit 7 on the side facing the operating unit 1.

[0033] The fuel tank 3 provides fuel to the power unit 7, is located below the passenger unit 4, and is positioned at the input end of the power unit 7.

[0034] The power unit 7 is located in the middle of the body frame 5 along its length. The power unit 7 is an internal combustion engine that converts fuel combustion inside the machine into power directly through the heat released. A cooling fan 6 is also provided at the input end of the power unit 7 to guide airflow from the input end to the output end. The output shaft 8 of the power unit 7 is oriented towards the transmission box 9.

[0035] The transmission box 9 is fixed to the rear of the vehicle frame 5. The transmission box 9 is connected to the power unit 7 via a transmission component. The transmission box 9 includes gears, shafts, bearings, and a housing, and is used to convert the power from the power unit 7 into the force and speed required to drive the work machine. In this embodiment, the transmission component is a connecting sleeve 11 that connects the transmission box 9 and the power unit 7. The transmission box 9 has a power connection port on the side facing the operating unit 1, and a PTO shaft 10 for connecting the work machine is also provided on the side of the transmission box 9 away from the operating unit 1.

[0036] The transmission box 9 is equipped with a travel drive shaft, and the rear travel unit includes a rear travel wheel, which is driven by the travel drive shaft.

[0037] The specific implementation process is as follows: During use, the operator in the riding unit 4 uses the operating unit 1 to control the walking and steering of the work machine. When walking, the fuel tank 3 supplies fuel to the power unit 7. After the fuel is burned in the power unit 7, it outputs power, which is transmitted to the walking drive shaft via the transmission box 9 directly connected to the power unit 7. This drives the rear walking wheels to rotate, and finally drives the work machine to walk.

[0038] Since both the power unit 7 and the riding unit 4 are located in the middle of the vehicle frame 5, and the power unit 7 is arguably the heaviest component of the work machine, placing it in the middle of the vehicle frame 5 effectively centers the work machine's center of gravity. During operation, especially when the work machine needs to frequently turn to avoid crops, frequent turns could lead to rollovers. This centered center of gravity effectively prevents rollovers and improves operational safety. Similarly, the riding unit 4, also located in the middle of the vehicle frame 5, prevents the work machine's center of gravity from shifting when personnel ride on it, and also avoids safety issues and poor maneuverability caused by a shifted center of gravity.

[0039] Example 2

[0040] like Figure 2 As shown, the difference from Embodiment 1 is that in this embodiment, the seating unit 4, which provides a seating position for the operator, is located on the side of the power unit 7 facing the operating unit, that is, the seating unit 4 is located in front of the power unit 7.

[0041] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An agricultural and garden riding-type work machine, comprising a vehicle frame, wherein an operating unit, a transmission box, and a power unit are mounted on the vehicle frame, the operating unit being located at the front of the vehicle frame, and the transmission box being fixed at the rear of the vehicle frame, characterized in that: The transmission box has a power connection port on the side facing the operating unit, and the power unit is located between the transmission box and the operating unit.

2. The agricultural and garden riding-type work machine according to claim 1, characterized in that: The power unit is mounted on the vehicle frame near the transmission box.

3. The agricultural and garden riding-type work machine according to claim 1 or 2, characterized in that: The vehicle frame is also equipped with a passenger unit, which is located above the power unit or on one side facing the operating unit.

4. The agricultural and garden riding-type work machine according to claim 3, characterized in that: A fuel tank is also located below the passenger unit.

5. The agricultural and garden riding-type work machine according to claim 4, characterized in that: The power unit is also equipped with a cooling fan at its input end to guide airflow from the input end to the output end.

6. The agricultural and garden riding-type work machine according to claim 5, characterized in that: The fuel tank is located at the input end of the power unit.

7. The agricultural and garden riding-type work machine according to claim 6, characterized in that: The transmission box and the power unit are directly connected via a transmission component.

8. The agricultural and garden riding-type work machine according to claim 7, characterized in that: The transmission box is also provided with a PTO shaft for connecting the working tool on the side opposite to the operating unit.

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