Riding type working machine

Abstract

The riding type working machine comprises a vehicle body frame, an operation unit, a power unit, a transmission unit and a working machine tool connector, the operation unit, the power unit and the transmission unit are arranged on the vehicle body frame, and the working machine tool connector is located behind the vehicle body frame; the power unit is located on the side, facing the operation unit, of the transmission unit. The side, facing the transmission unit, of the power unit is provided with a power connector, and the power unit is in transmission direct connection with the transmission unit through the power connector. According to the invention, the distance between the power unit and the transmission unit is shortened, and the power transmission path is simple, that is, the transmission path of the output power of the power unit is shortened, so that the transmission efficiency can be effectively improved.

Description

Technical Field

[0001] The present invention relates to a ride-on working machine, and more particularly to a ride-on working machine for agriculture and gardening. Background Art

[0002] On the road to the pursuit of agricultural modernization, efficient and reliable agricultural working machines have become an indispensable boost. Compared with walk-behind agricultural machinery, a ride-on working machine equipped with a seat allows the operator to work while sitting, greatly reducing the labor intensity, reducing fatigue, and making the operation easier and more flexible, improving the operation accuracy and efficiency. A ride-on working machine generally includes several parts such as an energy supply, a transmission system, and a working component. Among them, the energy supply mainly has two forms: an internal combustion engine and an electric motor. The transmission system converts the energy into the motion ability of the working machine. The working component is the core part of the working machine and directly participates in the working process. According to different working requirements, the forms of the working components are also different, including cutters, pickers, plow bodies, planting devices, etc.

[0003] For example, Chinese Patent Document CN203793461U discloses a multi-functional working machine, including a frame, a power output system, an operation console, a crawler traveling mechanism, a transport cart, and a working machine. The power output system is arranged on the right side of the front part of the frame, the operation console is arranged on the left side of the front part of the frame, the crawler traveling mechanisms are arranged on the left and right sides of the frame, the transport cart is arranged above the crawler traveling mechanisms at the rear part of the frame, a three-point hydraulic hitch is installed at the rear part of the frame, and the working machine is connected to the frame through the three-point hydraulic hitch; the power output system is connected to the working machine through a universal drive shaft. After adopting the above structure, it has the advantages of simple and compact structure, flexible and convenient operation, safe and reliable use, multi-purpose, etc., and meets the working needs such as crop transportation, conservation tillage of farmland, and driving and traction of agricultural implements.

[0004] Another example is that US Patent Document US6659209B2 discloses a tractor, including a pair of frames extending in the front-rear direction, and a transmission box extending and supported between the pair of frames. An engine is arranged at the front position of the tractor body, and a transmission is installed at the rear position of the tractor body, and both are installed between a pair of left and right body frames. The HST is rigidly connected to the front part of the transmission box body and is connected to the engine through a drive shaft. The front wheel drive shaft and the middle PTO shaft extend forward from the transmission for driving the front wheels and the mower respectively. In addition, a rear PTO shaft extends backward from the transmission for driving the rear working device. There is a hydraulic cylinder formed integrally with the upper surface of the transmission box body for lifting and lowering the rear working device and supporting the shaft of the lifting arm. The body frame is composed of plates having vertically extending portions, and the transmission case is bolted to the inner surface thereof.

[0005] In the above-mentioned prior art, since the power unit and the transmission unit are respectively arranged at the front and rear positions of the tractor body, this transmission method has the problem of too long power transmission path and complex power transmission structure, so there is a problem of low power output efficiency. Summary of the invention

[0006] In order to solve the technical problem of low transmission efficiency of work machines in the prior art, the present invention provides a riding work machine, including a body frame, on which an operating unit, a power unit, a transmission unit and a work tool interface are provided; wherein: the power unit is located on the side of the transmission unit facing the operating unit; a power connection port is provided on the side of the power unit facing the transmission unit, and the power unit is directly connected to the transmission unit through the power connection port.

[0007] In the prior art, the power transmission path between the power unit and the transmission unit is complex, which leads to large power loss during the output process, and thus leads to the problem of low transmission efficiency. In this solution, since the power unit and the transmission unit are connected by direct transmission connection, and the power connection port of the power unit is also arranged toward the transmission unit, the distance between the power unit and the transmission unit is shortened, and the power transmission path is simple, which means that the transmission path of the power output of the power unit is shortened, thereby effectively improving the transmission efficiency. At the same time, due to the setting of the power unit and the transmission unit, the size of the whole machine is effectively reduced, and the applicability of the operation in the limited space operation scene is improved.

[0008] Preferably, the power unit is arranged close to the transmission unit. In this solution, the power unit is arranged close to the transmission unit, which can shorten the transmission path of the power output by the power unit, thereby ensuring efficient power output.

[0009] Preferably, the power unit is directly connected to the transmission unit through a transmission member. In this solution, the transmission member is a connecting sleeve connecting the power unit and the transmission unit, which has the advantages of low cost and simple structure, and can avoid using universal joints and other transmission solutions on the market, which cause problems such as space waste.

[0010] Preferably, a PTO shaft connected to the working machine is further provided on the side of the transmission unit away from the operating unit. In this solution, the transmission path between the transmission unit and the PTO shaft can be shortened, thereby improving the transmission efficiency of power.

[0011] Preferably, the vehicle body frame is connected to a rear traveling mechanism or a driving wheel, a traveling driving shaft is provided below the transmission unit, and the traveling driving shaft is connected to the rear traveling mechanism or the driving wheel. The arrangement of this solution enables the working machine to have a four-wheel drive or two-wheel drive state, and users can choose according to actual needs, which can increase the sales market of the working machine.

[0012] Preferably, the walking drive shaft is connected to the rear walking mechanism, the body frame is connected with a front walking mechanism, and the walking drive shaft is also in transmission connection with the front walking mechanism. This solution can achieve the four-wheel drive state of the working machine, with a simple structure.

[0013] Preferably, the driving driving wheel is sleeved with a walking track, and the walking drive shaft is in transmission connection with the driving driving wheel. This solution can meet the walking requirements of the working machine in some complex environments, so that the working machine can adapt to more working scenarios.

[0014] Preferably, a riding unit is further provided on the body frame, and the riding unit is located above or in front of the power unit. In this solution, the way of arranging the riding unit above or in front of the power unit can avoid a large deviation of the center of mass of the working machine when the operator gets on the working machine and operates on slopes, and avoid problems such as poor safety and insufficient controllability caused by the deviation of the center of mass.

[0015] Preferably, the power unit is an internal combustion engine. In this solution, using an internal combustion engine as the power unit of the working machine has the advantages of good economy and high working efficiency, thus ensuring the mobility of the working machine.

[0016] Preferably, a fuel tank is further provided on the body frame, and the fuel tank is located on one side of the input end of the power unit. In this solution, arranging the fuel tank on one side of the input end of the power unit can avoid overheating of the fuel tank, and can improve the space utilization below the operator's legs while facilitating fuel filling.

[0017] Preferably, a cooling unit for cooling the power unit and guiding the cooling air towards the output end of the power unit is further provided at the input end of the power unit. This solution can cool the power unit and the transmission unit, and can also avoid the accumulation of heat generated when the power unit works, thus causing an uncomfortable operation feeling to the operator.

[0018] The present invention has the following beneficial effects: 1. In the present invention, the distance between the power unit and the transmission unit is effectively shortened, and the power transmission path is simple, which means that the power transmission path of the power unit outputting power is shortened, thus effectively improving the transmission efficiency.

[0019] 2. The present invention can shorten the power transmission path of the power unit outputting power, thus ensuring the high-efficiency output of power, and at the same time effectively reducing the overall size of the machine and improving the operation applicability in limited space operation scenarios.

[0020] 3. The present invention can make the working machine have a four-wheel drive or two-wheel drive state, and users can choose according to actual needs, which can increase the sales market of the working machine, and can meet the walking requirements of the working machine in some complex environments, so that the working machine can adapt to more working scenarios.

[0021] 4. The present invention can avoid a large deviation of the centroid of the work machine after the operator sits on the work machine, and avoid problems such as poor safety and insufficient controllability caused by the deviation of the centroid.

[0022] 5. The present invention can avoid overheating of the fuel tank, improve the space utilization under the legs of the operator while facilitating fuel filling, and can also avoid the accumulation of heat generated during the operation of the power unit, thereby causing an uncomfortable operating feeling to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram ① of Embodiment 1 of a ride-on work machine according to the present invention; Figure 2 Schematic diagram ② of Embodiment 1 of a ride-on work machine according to the present invention; Figure 3 Schematic diagram of Embodiment 2 of a ride-on work machine according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] The following is a further detailed description through specific embodiments: 1. Definitions Direct drive: It refers to a mechanical drive method that transmits power and torque by directly connecting two or more rotating components. Compared with multi-stage drive, reducer drive and other methods, direct drive has the following characteristics: 1. Simple: Direct drive has no intermediate drive device, with a simple structure and convenient maintenance; 2. Efficient: Since there is no drive device to consume power, the efficiency of direct drive is relatively high; 3. Energy-saving: Direct drive has high efficiency and can reduce the energy loss inside the system, so it is more energy-saving.

[0025] PTO shaft: Power take-off shaft, used to transmit part of the power of the engine to equipment or implements that require power.

[0026] Traveling mechanism: Also known as "road traveling mechanism", it is a part of the chassis of an automobile or tractor, generally including structures such as a frame, front axle, rear axle, suspension system and wheels. The part in the traveling mechanism that directly contacts the road surface is the wheel, which is called a wheeled traveling mechanism. In addition, there are also semi-tracked traveling mechanisms, wheel-tracked traveling mechanisms and tracked traveling mechanisms, etc. The semi-tracked traveling mechanism is equipped with wheels or skids on the front axle and tracks on the rear axle, and is mainly used for traveling in snowy or swampy areas. The wheel-tracked traveling mechanism has interchangeable wheels and tracks. The traveling mechanism of a tracked tractor consists of a suspension system and a tracked walker.

[0027] 2. The reference numerals in the accompanying drawings of the description include: an operation unit 1, front traveling wheels 2, a fuel tank 3, a seating unit 4, a vehicle body frame 5, a cooling unit 6, a power unit 7, an output shaft 8, a transmission unit 9, a PTO shaft 10, a connecting sleeve 11, and traveling tracks 12.

[0028] It should be noted that in this embodiment, the left end of the vehicle body frame 5 is defined as the front direction, and the right end is defined as the rear direction.

[0029] Embodiment 1 Basically as shown in the attached Figure 1 and Figure 2 figures: A ride-on working machine includes a vehicle body frame 5, and an operation unit 1, a front traveling mechanism, a fuel tank 3, a seating unit 4, a power unit 7, a transmission unit 9, and a rear traveling mechanism are provided on the vehicle body frame 5 in the front-rear direction.

[0030] Among them, the operation unit 1 is located in front of the vehicle body frame 5. The operation unit 1 includes a steering wheel, an accelerator, a brake, a clutch, etc. The operator can start, drive, steer, and park the working machine by operating the operation unit 1.

[0031] The front traveling unit includes front traveling wheels 2 and a front traveling drive axle to achieve the steering of the working machine.

[0032] The seating unit 4 provides a seating position for the operator and is arranged in the middle of the vehicle body frame 5, above or to the left of the power unit 7; the seating unit 4 is located to the left of the power unit 7, as shown in Figure 1 the figure; the seating unit 4 is located above the power unit 7, as shown in Figure 2 the figure.

[0033] The fuel tank 3 supplies fuel to the power unit 7, is located below the seating unit 4, and is arranged at the input end of the power unit 7 and in front of the power unit 7.

[0034] The power unit 7 is located in the middle of the vehicle body frame 5 in the length direction. The power unit 7 is an internal combustion engine that directly converts the heat energy released by the combustion of fuel inside the machine into power. A cooling unit 6 for cooling the power unit 7 and guiding the cooling air toward the output end of the power unit 7 is further provided at the input end of the power unit 7. The cooling unit 6 uses a cooling fan. The output shaft 8 of the power unit 7 is arranged toward the transmission unit 9, that is, the output shaft 8 of the power unit 7 is arranged backward.

[0035] The transmission unit 9 is fixed at the rear of the vehicle body frame 5. The transmission unit 9 is directly connected to the power unit 7 through a transmission member for transmission. The transmission unit 9 includes gears, shafts, bearings, a housing, etc., and is used to convert the power of the power unit 7 into the force and speed required to drive the working machine to operate. In this embodiment, the transmission member is a connecting sleeve 11 that connects the power unit 7 and the transmission unit 9.

[0036] The vehicle body frame 5 is also provided with a work tool interface, which is arranged at the rear or below the vehicle body frame 5 . In this embodiment, the work tool interface is arranged at the rear of the transmission unit 9 on the vehicle body frame 5 .

[0037] A PTO shaft 10 connected to a work tool is also provided on the side of the transmission unit 9 facing away from the operating unit 1 .

[0038] The vehicle body frame 5 is connected with a rear traveling mechanism and a driving driving wheel, and a traveling driving shaft is provided below the transmission unit 9, and the traveling driving shaft is connected with the rear traveling mechanism or the driving driving wheel. Through such an arrangement, users can selectively purchase a working machine in a four-wheel drive or two-wheel drive state.

[0039] In this embodiment, the travel drive shaft is connected to the rear travel mechanism, the vehicle body frame 5 is connected to the front travel mechanism, and the travel drive shaft is also transmission-connected to the front travel mechanism to realize the four-wheel drive state of the working machine.

[0040] The specific implementation process is as follows: When in use, the operator on the riding unit 4 realizes the walking and steering operations of the working machine through the operating unit 1. When walking, the fuel tank 3 supplies fuel to the power unit 7, and the fuel is burned in the power unit 7 to output power, which is transmitted to the walking drive shaft through the transmission unit 9 directly connected to the power unit 7, and then drives the rear walking mechanism to move, and finally drives the working machine to walk.

[0041] In this embodiment, since the power unit 7 and the transmission unit 9 are connected by direct transmission connection, and the power unit 7 is arranged close to the transmission unit 9, and the power connection port of the power unit 7 is also arranged toward the transmission unit 9, the distance between the power unit 7 and the transmission unit 9 is shortened, which means that the transmission path of the power output of the power unit 7 is shortened, and the power transmission path is simple, thereby effectively improving the transmission efficiency. The riding unit 4 is also arranged in the middle of the body frame 5, which can prevent the center of mass of the working machine from shifting after the operator rides on the working machine, and can also prevent the working machine from having poor safety and insufficient controllability due to the deviation of the center of mass.

[0042] Example 2 like Figure 3 As shown, in this embodiment, the vehicle body frame 5 is connected to the driving active wheel, the travel driving shaft is connected to the driving active wheel by transmission, and the driving active wheel sleeve is provided with a travel track 12, so that the working machine can adapt to complex terrains such as mud, sand and stone, and improve agricultural production efficiency.

[0043] The above are only embodiments of the present invention. Specific structures and common knowledge such as characteristics well known in the art are not described in detail herein. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the invention pertains before the filing date or the priority date, can know all the prior art in this field, and have the ability to apply conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to complete and implement this solution. Some typical well-known structures or well-known methods should not become obstacles for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope claimed in this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A riding work machine, comprising a body frame, on which an operating unit, a power unit, a transmission unit and a work tool interface are arranged; characterized in that: The power unit is located on a side of the transmission unit facing the operating unit; a power connection port is provided on a side of the power unit facing the transmission unit, and the power unit is directly connected to the transmission unit through the power connection port.

2. The riding working machine according to claim 1, characterized in that: The power unit is arranged close to the transmission unit.

3. The riding working machine according to claim 2, characterized in that: The power unit is directly connected to the transmission unit via a transmission member.

4. The riding working machine according to claim 3, characterized in that: A PTO shaft connected to a working tool is also provided on a side of the transmission unit away from the operating unit.

5. The riding working machine according to any one of claims 1 to 4, characterized in that: The vehicle body frame is connected with a rear traveling mechanism or a driving wheel, a traveling driving shaft is arranged below the transmission unit, and the traveling driving shaft is connected with the rear traveling mechanism or the driving wheel.

6. The riding working machine according to claim 5, characterized in that: The travel drive shaft is connected to the rear travel mechanism, the vehicle body frame is connected to the front travel mechanism, and the travel drive shaft is also transmission-connected to the front travel mechanism.

7. The riding working machine according to claim 5, characterized in that: The driving wheel sleeve is provided with a walking track, and the walking driving shaft is drivingly connected with the driving wheel.

8. The riding working machine according to claim 1, characterized in that: A riding unit is also provided on the vehicle body frame, and the riding unit is located above the power unit or in front of the power unit.

9. The riding working machine according to claim 1, characterized in that: The power unit is an internal combustion engine.

10. The riding working machine according to claim 9, characterized in that: The vehicle body frame is also provided with a fuel tank, which is located at one side of the input end of the power unit.

11. The riding working machine according to claim 9 or 10, characterized in that: The input end of the power unit is also provided with a cooling unit for cooling the power unit and guiding cooling wind toward the output end of the power unit.

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