阅读说明：本技术 一种果园大棚轮式拖拉机 (Wheeled tractor for orchard greenhouse ) 是由 陶涛 杨志波 董昊 胡新燕 崔晴 谢明 杜东辉 赵学平 裴高院 凌豪 于 2021-09-23 设计创作，主要内容包括：本发明提供一种果园大棚轮式拖拉机,包括覆盖件、动力总成及附件、转向系统、变速箱及驱动装置以及液压系统及工作装置,本发明的果园大棚用拖拉机整机布置合理,通过采用紧凑型变速箱及驱动装置,侧置燃油箱、可调式轮毂、紧凑型悬挂机构、垂直布置消声器等方法,减小了整机结构尺寸,缩短了轴距；同时,根据拖拉机人机工程学要求进行了操纵布置,在狭小空间内保证操纵方便,转向灵活；而且,紧凑型变速箱及驱动装置,优化其内部空间,在保证功能的基础上,减小尺寸,同时速度设计合理,运行平稳,作业效率高；本发明可配套多种机具,以满足喷药、剪枝、旋耕、施肥、除草等狭小空间作业需求,也可用于部分丘陵山地农田作业。(The invention provides a wheeled tractor for an orchard greenhouse, which comprises a covering part, a power assembly, accessories, a steering system, a gearbox, a driving device, a hydraulic system and a working device, wherein the whole tractor for the orchard greenhouse is reasonable in arrangement; meanwhile, the operation arrangement is carried out according to the ergonomic requirement of the tractor, so that the operation is convenient and the steering is flexible in a narrow space; moreover, the compact gearbox and the driving device optimize the internal space thereof, reduce the size on the basis of ensuring the functions, and have reasonable speed design, stable operation and high operation efficiency; the invention can be matched with various machines to meet the operation requirements of spraying, pruning, rotary tillage, fertilizing, weeding and other narrow spaces, and can also be used for the farmland operation of partial hills and mountainous regions.)

1. The utility model provides an orchard big-arch shelter wheeled tractor, includes covering, power assembly and annex, a steering system, gearbox and drive arrangement and hydraulic system and equipment, its characterized in that: the power assembly and the accessory are connected to the front parts of the gearbox and the driving device through bolts, the covering part and the steering system are fixed above the power assembly and the accessory and the gearbox and the driving device through bolts, the steering system is located below the covering part, and the hydraulic system and the working device are fixed around the power assembly and the accessory and the gearbox and the driving device through bolts and pipe clamps.

2. The orchard greenhouse wheeled tractor according to claim 1, wherein: the covering piece comprises a front hood assembly, a portal frame, a rearview mirror, a rear instrument cover, a left floor, a right floor, a left rear fender assembly, a right rear fender assembly, a left anti-turnover frame bracket, a right anti-turnover frame bracket, an upper anti-turnover frame, a seat assembly and a hood locking piece;

the front hood assembly is hinged to a portal frame through a pin shaft, the portal frame is fixed to a gearbox assembly of a gearbox and a driving device through bolts, the rearview mirrors are fixed to supports on two sides of the portal frame through bolts, and the rear instrument cover is fixed to the portal frame through bolts;

the left floor and the right floor are fixed on two sides of a gearbox assembly of the gearbox and the driving device through bolts, a left bracket and a left rear mudguard assembly of the anti-turnover frame are fixed on the left sides of tail end transmission devices of the gearbox and the driving device through bolts, and a right rear mudguard assembly and a right bracket of the anti-turnover frame are fixed on the right sides of the tail end transmission devices of the gearbox and the driving device through bolts; the upper frame of the anti-turnover frame is hinged on the left support and the right support of the anti-turnover frame through pin shafts, the seat assembly is fixed on a lifter support of a hydraulic system and a working device through bolts, the upper part of the hood locking piece is fixed inside the front end of the front hood assembly through bolts, and the lower part of the hood locking piece is fixed on the front part of a bracket assembly of a gearbox and a driving device through bolts.

3. The orchard greenhouse wheeled tractor according to claim 1, wherein: the power assembly and the accessories comprise a radiator, a diesel engine assembly, a supercharger, a silencer, a flywheel shell, a flywheel, a fuel tank bracket, a fastening belt, a fuel tank, an air filter and a radiator protection plate;

the radiator is fixed on a front bracket assembly of the gearbox and the driving device through bolts, and the cooling liquid in the radiator is connected with a water inlet and a water outlet of the diesel engine assembly through pipelines and is communicated with a water channel in the diesel engine assembly; the supercharger is arranged in the middle of an exhaust pipe of the diesel engine assembly through a bolt; the silencer is fixed at the exhaust port of the supercharger through bolts; the flywheel shell is fixed at the rear part of the diesel engine assembly through a bolt and is arranged at the front part of a gearbox of the gearbox assembly of the gearbox and the driving device through the bolt; the flywheel is positioned in the flywheel shell and is fixed on a crankshaft of the diesel engine assembly through a bolt;

the fuel tank bracket is arranged on the left side of the diesel engine assembly through a bolt and is positioned in front of the gearbox assembly of the gearbox and the driving device, and the fuel tank is fixed on the fuel tank bracket through a fastening belt; the air filter is arranged in the middle of the left side of the diesel engine assembly through a bolt and a bracket; the radiator protection plates are installed on the left side and the right side of the radiator through bolts.

4. The orchard greenhouse wheeled tractor according to claim 1, wherein: the steering system comprises a steering oil can, a steering oil can support, a four-link pipe clamp, a steering gear oil return pipe, a steering gear oil inlet pipe, a steering wheel, a steering column, a steering gear support, a steering gear, a left steering oil pipe, a right steering oil pipe, a pipe clamp, a front axle right steering oil pipe, a front axle left steering oil pipe, a steering oil pump and a steering oil pump oil inlet pipe;

the steering oil can is arranged on the steering oil can support and is fixed on the power assembly and the diesel engine assembly of the accessory through bolts; the steering wheel is arranged on the steering column through a spline and a nut; the steering column is arranged on the steering gear; the steering gear support is fixed on a portal frame of the covering part through bolts, the steering gear is arranged on the steering gear support, and the steering oil pump is arranged in front of a gear chamber of the power assembly and a diesel engine assembly of the accessory;

the steering gear oil return pipe is connected with an oil return port of the steering gear and an oil inlet of the steering oil can; the steering gear oil inlet pipe is connected with an oil outlet of the steering oil pump and an oil inlet of the steering gear; the steering oil pump oil inlet pipe is connected with an oil inlet of the steering oil pump and an oil outlet of the steering oil can; the port A of the steering gear is connected with a left steering oil pipe, then is connected with a front axle left steering oil pipe, and is then connected to a steering oil cylinder of a gearbox and a driving device; the port B of the steering gear is connected with a right steering oil pipe, then is connected with a front axle right steering oil pipe, and then is connected to a steering oil cylinder of a gearbox and a driving device.

5. The orchard greenhouse wheeled tractor according to claim 4, wherein: the oil pipe is fixed on the power assembly and the diesel engine assembly of the accessory through the pipe clamp and the quadruple pipe clamp.

6. The orchard greenhouse wheeled tractor according to claim 1, wherein: the gearbox and driving device comprises a front bracket assembly, a battery pressing plate assembly, a front drive axle assembly, a steering oil cylinder, a gearbox assembly, a transfer case, a transmission shaft, a driving shaft, a tail end transmission device, an adjustable hub assembly, a clutch assembly, a brake assembly, a left front drive wheel assembly, a right front drive wheel assembly, a left rear drive wheel assembly, a right rear drive wheel assembly, a clutch pedal, a left brake pedal, a right brake pedal, a parking brake handle, a main transmission handle, an auxiliary transmission handle, a differential lock handle, a PTO (power take off) operating handle and a four-wheel drive operating handle;

the bracket assembly is connected to the power assembly and the diesel engine assembly of the accessory through bolts, and the battery pressing plate assembly is connected above the bracket assembly through bolts; the front drive axle assembly is connected below the bracket assembly through a bolt; the right front driving wheel assembly and the left front driving wheel assembly are respectively connected with wheel hubs on the left side and the right side of the front drive axle assembly; the front end of the gearbox assembly is connected with a flywheel shell bolt at the rear part of the diesel engine assembly of the power assembly and the accessory, the clutch assembly is positioned in the front section of the gearbox assembly, and the front end surface is connected with the rear end surfaces of the flywheels of the power assembly and the accessory; the transfer case is arranged below the gearbox assembly through a bolt; two ends of the transmission shaft are respectively connected with the transfer case and the front drive axle assembly through a spline and a hoop; the tail end transmission device is connected to two sides of the rear part of the gearbox assembly through bolts, and the driving shaft is connected with the tail end transmission device through splines; the brake assembly is connected to two sides of the rear part of the gearbox assembly through bolts and is positioned at the front part of the tail end transmission device; the adjustable hub assembly is arranged on the driving shaft through a flat key and a fastening bolt; the left rear driving wheel assembly and the right rear driving wheel assembly are respectively connected to the adjustable wheel hub assemblies on the left side and the right side;

the clutch pedal is arranged at the left front part of the gearbox assembly and is connected with the clutch assembly through a rod system; the left brake pedal, the right brake pedal and the parking brake handle are arranged at the front right part of the gearbox assembly and are connected with the brake assembly through a rod system; the main gear shifting handle and the auxiliary gear shifting handle are arranged on the upper part of the right side of the gear shifting box assembly and are directly arranged on an upper cover of the gear shifting box assembly; the differential lock handle is arranged at the upper part of the right rear side of the gearbox assembly and is directly arranged on a differential lock shifting fork shaft of the gearbox assembly; the PTO control handle is arranged at the upper part of the left rear side of the gearbox assembly and is directly arranged on a power output shifting fork shaft of the gearbox assembly; the four-wheel drive control handle is arranged in the left middle of the gearbox assembly and is connected with the transfer case through a connecting rod.

7. The orchard greenhouse wheeled tractor according to claim 1, wherein: the hydraulic system and the working device comprise a hydraulic oil tank, a hydraulic oil pump oil inlet pipe, a hydraulic oil tank vent pipe, a hydraulic oil pump oil outlet pipe, a hydraulic output left operating handle, a hydraulic output right operating handle, a push-pull flexible shaft, a lifter support, a lifting operating handle, a hydraulic multi-way valve assembly, an upper pull rod hook rod, an upper pull rod, a hydraulic output port, a lifting arm, a lifting rod, a towing support, a lower pull rod, a towing fork lock pin, a limiting rod, a lifting oil cylinder, a limiting rod support, a multi-way valve pipeline, a lifting oil cylinder pipeline, a pressure regulating valve, a multi-way valve oil return pipe and a hydraulic oil tank filler cap;

the hydraulic oil tank is arranged at the lower part of a bracket assembly of the gearbox and the driving device through bolts; one end of an oil inlet pipe of the hydraulic oil pump is connected with the hydraulic oil pump, and the other end of the oil inlet pipe of the hydraulic oil pump is connected with the hydraulic oil tank; the hydraulic oil tank vent pipe is directly connected to the hydraulic oil tank; the hydraulic oil pump is connected to the rear of the power assembly and the gear chamber of the accessory diesel engine assembly through bolts; one end of an oil outlet pipe of the hydraulic oil pump is connected with an oil outlet of the hydraulic oil pump, and the other end of the oil outlet pipe of the hydraulic oil pump is connected with a multi-way valve pipeline;

the hydraulic output left control handle and the hydraulic output right control handle are arranged on a pin shaft of a left rear fender assembly of the covering part and are connected with the hydraulic multi-way valve assembly through a push-pull flexible shaft; the lifter bracket is arranged on the upper part of a gearbox assembly of the gearbox and the driving device through bolts; the lifting control handle is arranged on a pin shaft of a right rear fender assembly of the covering part and is connected with the hydraulic multi-way valve assembly through a push-pull flexible shaft; the hydraulic multi-way valve assembly is arranged on the upper part of the lifter bracket through a bolt; the upper pull rod hook rod is hinged on the hydraulic multi-way valve assembly through a split pin; the lower part of the upper pull rod is arranged on the upper part of the towing bracket by a pin shaft, and the upper part of the upper pull rod is limited by an upper pull rod hook rod; the hydraulic output port is directly arranged on the hydraulic multi-way valve assembly;

the lifting arms are arranged on two sides of the lifter bracket through splines; the upper part of the lifting rod is connected with a ball bearing of the lifting arm, and the lower part of the lifting rod is arranged on the lower pull rod through a pin shaft; the trailing bracket is arranged at the rear part of the gearbox assembly of the gearbox and the driving device through bolts; the ball bearings at the front part of the lower pull rod are hinged on the two sides of the lower part of the towing bracket by pin shafts; the traction fork is fixed inside the traction bracket by a pin shaft; the traction fork lock pin is hinged on the traction fork through the split pin; the front end of the limiting rod is fixed on the limiting rod support by a pin shaft, and the rear end of the limiting rod is fixed on the lower pull rod by a pin shaft; the lifting oil cylinder is connected with the lifting arm through the upper part of a pin shaft, and the lower part of the lifting oil cylinder is arranged on the pin shaft of the towing bracket; the limiting rod support is arranged at the lower part of the tail end transmission device of the gearbox and the driving device through bolts;

one end of the multi-way valve pipeline is connected with an oil outlet pipe of the hydraulic oil pump, and the other end of the multi-way valve pipeline is connected with an oil inlet of the hydraulic multi-way valve assembly; the pipeline of the lifting oil cylinder is a pipeline group connected between the hydraulic multi-way valve assembly and the lifting oil cylinder, one end connected with the hydraulic multi-way valve assembly is also connected with the oil return pipe of the multi-way valve, and the other end of the oil return pipe of the multi-way valve is connected to the hydraulic oil tank.

8. The orchard greenhouse wheeled tractor according to claim 7, wherein: the hydraulic system and the working device also comprise a pressure regulating valve which is directly connected with the multi-way valve pipeline by threads.

Technical Field

The invention belongs to the field of agricultural machinery, particularly relates to a wheeled tractor for an orchard greenhouse, and particularly relates to a wheeled tractor capable of meeting the requirements of greenhouse planting and orchard management operation and the requirements of small farmland operation.

Background

At present, the mechanization degree of various operations of the domestic forestry and fruit industry and greenhouse planting is very low, a multi-purpose traditional agricultural tractor is used for operating in an orchard greenhouse in the market, the traditional agricultural tractor is large in overall dimension and large in turning radius, and the operation requirements of the orchard greenhouse in narrow space are difficult to meet due to poor mobility, poor adaptability, low operation efficiency and the like when the traditional agricultural tractor is used in the orchard greenhouse.

Disclosure of Invention

In view of the above, the invention aims to provide an orchard greenhouse specialized tractor which is compact in structure, flexible in maneuvering, and capable of performing rotary tillage, ditching, pesticide spraying, weeding and other greenhouse planting, orchard management operation and small plot operation on hills and mountains.

In order to achieve the purpose, the invention adopts the technical scheme that: a tractor for an orchard greenhouse comprises a covering piece, a power assembly, an accessory, a steering system, a gearbox, a driving device, a hydraulic system and a working device, wherein the power assembly and the accessory are connected to the front portion of the gearbox and the driving device through bolts, the covering piece and the steering system are fixed above the power assembly, the accessory, the gearbox and the driving device through bolts, the steering system is located below the covering piece, and the hydraulic system and the working device are fixed around the power assembly, the accessory, the gearbox and the driving device through bolts and pipe clamps.

Further, the covering piece comprises a front hood assembly, a portal frame, a rearview mirror, a rear instrument cover, a left floor, a right floor, a left rear fender assembly, a right rear fender assembly, a left anti-turnover frame bracket, a right anti-turnover frame bracket, an upper anti-turnover frame, a seat assembly and a hood locking piece;

the front hood assembly is hinged to a portal frame through a pin shaft, the portal frame is fixed to a gearbox assembly of a gearbox and a driving device through bolts, the rearview mirrors are fixed to supports on two sides of the portal frame through bolts, and the rear instrument cover is fixed to the portal frame through bolts;

the left floor and the right floor are fixed on two sides of a gearbox assembly of the gearbox and the driving device through bolts, a left bracket and a left rear mudguard assembly of the anti-turnover frame are fixed on the left sides of tail end transmission devices of the gearbox and the driving device through bolts, and a right rear mudguard assembly and a right bracket of the anti-turnover frame are fixed on the right sides of the tail end transmission devices of the gearbox and the driving device through bolts; the upper frame of the anti-turnover frame is hinged on the left support and the right support of the anti-turnover frame through pin shafts, the seat assembly is fixed on a lifter support of a hydraulic system and a working device through bolts, the upper part of the hood locking piece is fixed inside the front end of the front hood assembly through bolts, and the lower part of the hood locking piece is fixed on the front part of a bracket assembly of a gearbox and a driving device through bolts.

Furthermore, the power assembly and the accessories comprise a radiator, a diesel engine assembly, a supercharger, a silencer, a flywheel shell, a flywheel, a fuel tank bracket, a fastening belt, a fuel tank, an air filter and a radiator protection plate;

the radiator is fixed on a front bracket assembly of the gearbox and the driving device through bolts, and the cooling liquid in the radiator is connected with a water inlet and a water outlet of the diesel engine assembly through pipelines and is communicated with a water channel in the diesel engine assembly; the supercharger is arranged in the middle of an exhaust pipe of the diesel engine assembly through a bolt; the silencer is fixed at the exhaust port of the supercharger through bolts; the flywheel shell is fixed at the rear part of the diesel engine assembly through a bolt and is arranged at the front part of a gearbox of the gearbox assembly of the gearbox and the driving device through the bolt; the flywheel is positioned in the flywheel shell and is fixed on a crankshaft of the diesel engine assembly through a bolt;

the fuel tank bracket is arranged on the left side of the diesel engine assembly through a bolt and is positioned in front of the gearbox assembly of the gearbox and the driving device, and the fuel tank is fixed on the fuel tank bracket through a fastening belt; the air filter is arranged in the middle of the left side of the diesel engine assembly through a bolt and a bracket; the radiator protection plates are installed on the left side and the right side of the radiator through bolts.

Furthermore, the steering system comprises a steering oil can, a steering oil can support, a four-link pipe clamp, a steering gear oil return pipe, a steering gear oil inlet pipe, a steering wheel, a steering column, a steering gear support, a steering gear, a left steering oil pipe, a right steering oil pipe, a pipe clamp, a front axle right steering oil pipe, a front axle left steering oil pipe, a steering oil pump and a steering oil pump oil inlet pipe;

the steering oil can is arranged on the steering oil can support and is fixed on the power assembly and the diesel engine assembly of the accessory through bolts; the steering wheel is arranged on the steering column through a spline and a nut; the steering column is arranged on the steering gear; the steering gear support is fixed on a portal frame of the covering part through bolts, the steering gear is arranged on the steering gear support, and the steering oil pump is arranged in front of a gear chamber of the power assembly and a diesel engine assembly of the accessory;

the steering gear oil return pipe is connected with an oil return port of the steering gear and an oil inlet of the steering oil can; the steering gear oil inlet pipe is connected with an oil outlet of the steering oil pump and an oil inlet of the steering gear; the steering oil pump oil inlet pipe is connected with an oil inlet of the steering oil pump and an oil outlet of the steering oil can; the port A of the steering gear is connected with a left steering oil pipe, then is connected with a front axle left steering oil pipe, and is then connected to a steering oil cylinder of a gearbox and a driving device; the port B of the steering gear is connected with a right steering oil pipe, then is connected with a front axle right steering oil pipe, and then is connected to a steering oil cylinder of a gearbox and a driving device.

Furthermore, the oil pipe is fixed on the power assembly and the diesel engine assembly of the accessory through a pipe clamp and a quadruple pipe clamp.

Furthermore, the gearbox and the driving device comprise a front bracket assembly, a battery pressing plate assembly, a front driving axle assembly, a steering oil cylinder, a gearbox assembly, a transfer case, a transmission shaft, a driving shaft, a tail end transmission device, an adjustable hub assembly, a clutch assembly, a brake assembly, a left front driving wheel assembly, a right front driving wheel assembly, a left rear driving wheel assembly, a right rear driving wheel assembly, a clutch pedal, a left brake pedal, a right brake pedal, a parking brake handle, a main transmission handle, an auxiliary transmission handle, a differential lock handle, a PTO (Power Take off) operating handle and a four-wheel drive operating handle;

the bracket assembly is connected to the power assembly and the diesel engine assembly of the accessory through bolts, and the battery pressing plate assembly is connected above the bracket assembly through bolts; the front drive axle assembly is connected below the bracket assembly through a bolt; the right front driving wheel assembly and the left front driving wheel assembly are respectively connected with wheel hubs on the left side and the right side of the front drive axle assembly; the front end of the gearbox assembly is connected with a flywheel shell bolt at the rear part of the diesel engine assembly of the power assembly and the accessory, the clutch assembly is positioned in the front section of the gearbox assembly, and the front end surface is connected with the rear end surfaces of the flywheels of the power assembly and the accessory; the transfer case is arranged below the gearbox assembly through a bolt; two ends of the transmission shaft are respectively connected with the transfer case and the front drive axle assembly through a spline and a hoop; the tail end transmission device is connected to two sides of the rear part of the gearbox assembly through bolts, and the driving shaft is connected with the tail end transmission device through splines; the brake assembly is connected to two sides of the rear part of the gearbox assembly through bolts and is positioned at the front part of the tail end transmission device; the adjustable hub assembly is arranged on the driving shaft through a flat key and a fastening bolt; the left rear driving wheel assembly and the right rear driving wheel assembly are respectively connected to the adjustable wheel hub assemblies on the left side and the right side;

the clutch pedal is arranged at the left front part of the gearbox assembly and is connected with the clutch assembly through a rod system; the left brake pedal, the right brake pedal and the parking brake handle are arranged at the front right part of the gearbox assembly and are connected with the brake assembly through a rod system; the main gear shifting handle and the auxiliary gear shifting handle are arranged on the upper part of the right side of the gear shifting box assembly and are directly arranged on an upper cover of the gear shifting box assembly; the differential lock handle is arranged at the upper part of the right rear side of the gearbox assembly and is directly arranged on a differential lock shifting fork shaft of the gearbox assembly; the PTO control handle is arranged at the upper part of the left rear side of the gearbox assembly and is directly arranged on a power output shifting fork shaft of the gearbox assembly; the four-wheel drive control handle is arranged in the left middle of the gearbox assembly and is connected with the transfer case through a connecting rod.

Furthermore, the hydraulic system and the working device comprise a hydraulic oil tank, a hydraulic oil pump oil inlet pipe, a hydraulic oil tank vent pipe, a hydraulic oil pump oil outlet pipe, a hydraulic output left operating handle, a hydraulic output right operating handle, a push-pull flexible shaft, a lifter support, a lifting operating handle, a hydraulic multi-way valve assembly, an upper pull rod hook rod, an upper pull rod, a hydraulic output port, a lifting arm, a lifting rod, a towing support, a lower pull rod, a towing fork lock pin, a limiting rod, a lifting oil cylinder, a limiting rod support, a multi-way valve pipeline, a lifting oil cylinder pipeline, a pressure regulating valve, a multi-way valve oil return pipe and a hydraulic oil tank filler cap;

the hydraulic oil tank is arranged at the lower part of a bracket assembly of the gearbox and the driving device through bolts; one end of an oil inlet pipe of the hydraulic oil pump is connected with the hydraulic oil pump, and the other end of the oil inlet pipe of the hydraulic oil pump is connected with the hydraulic oil tank; the hydraulic oil tank vent pipe is directly connected to the hydraulic oil tank; the hydraulic oil pump is connected to the rear of the power assembly and the gear chamber of the accessory diesel engine assembly through bolts; one end of an oil outlet pipe of the hydraulic oil pump is connected with an oil outlet of the hydraulic oil pump, and the other end of the oil outlet pipe of the hydraulic oil pump is connected with a multi-way valve pipeline;

the hydraulic output left control handle and the hydraulic output right control handle are arranged on a pin shaft of a left rear fender assembly of the covering part and are connected with the hydraulic multi-way valve assembly through a push-pull flexible shaft; the lifter bracket is arranged on the upper part of a gearbox assembly of the gearbox and the driving device through bolts; the lifting control handle is arranged on a pin shaft of a right rear fender assembly of the covering part and is connected with the hydraulic multi-way valve assembly through a push-pull flexible shaft; the hydraulic multi-way valve assembly is arranged on the upper part of the lifter bracket through a bolt; the upper pull rod hook rod is hinged on the hydraulic multi-way valve assembly through a split pin; the lower part of the upper pull rod is arranged on the upper part of the towing bracket by a pin shaft, and the upper part of the upper pull rod is limited by an upper pull rod hook rod; the hydraulic output port is directly arranged on the hydraulic multi-way valve assembly;

the lifting arms are arranged on two sides of the lifter bracket through splines; the upper part of the lifting rod is connected with a ball bearing of the lifting arm, and the lower part of the lifting rod is arranged on the lower pull rod through a pin shaft; the trailing bracket is arranged at the rear part of the gearbox assembly of the gearbox and the driving device through bolts; the ball bearings at the front part of the lower pull rod are hinged on the two sides of the lower part of the towing bracket by pin shafts; the traction fork is fixed inside the traction bracket by a pin shaft; the traction fork lock pin is hinged on the traction fork through the split pin; the front end of the limiting rod is fixed on the limiting rod support by a pin shaft, and the rear end of the limiting rod is fixed on the lower pull rod by a pin shaft; the lifting oil cylinder is connected with the lifting arm through the upper part of a pin shaft, and the lower part of the lifting oil cylinder is arranged on the pin shaft of the towing bracket; the limiting rod support is arranged at the lower part of the tail end transmission device of the gearbox and the driving device through bolts;

one end of the multi-way valve pipeline is connected with an oil outlet pipe of the hydraulic oil pump, and the other end of the multi-way valve pipeline is connected with an oil inlet of the hydraulic multi-way valve assembly; the pipeline of the lifting oil cylinder is a pipeline group connected between the hydraulic multi-way valve assembly and the lifting oil cylinder, one end connected with the hydraulic multi-way valve assembly is also connected with the oil return pipe of the multi-way valve, and the other end of the oil return pipe of the multi-way valve is connected to the hydraulic oil tank.

Furthermore, the hydraulic system and the working device also comprise a pressure regulating valve which is directly connected with the multi-way valve pipeline by threads.

Compared with the prior art, the invention has the beneficial effects that: the tractor for the orchard greenhouse is reasonable in overall arrangement, and the overall structure size is reduced and the wheelbase is shortened by adopting methods of a compact gearbox, a driving device, a laterally arranged fuel tank, an adjustable hub, a compact suspension mechanism, a vertically arranged silencer and the like; secondly, the operation arrangement is carried out according to the ergonomic requirement of the tractor, so that the operation is convenient and the steering is flexible in a narrow space; thirdly, the compact gearbox and the driving device optimize the internal space, reduce the size on the basis of ensuring the functions, and have reasonable speed design, stable operation and high operation efficiency; fourthly, the steering system is independent of other systems, and is directly powered by a diesel engine, so that the steering system is safe and reliable; fifthly, on the basis of not increasing the size of the whole machine, a large-capacity L-shaped fuel tank is adopted, so that the operation time is prolonged; sixth, compact covering piece style is bright and fast, elegant appearance. Can be matched with various machines and tools to meet the operation requirements of narrow spaces such as spraying, pruning, rotary tillage, fertilizing, weeding and the like, and can also be used for the operation of farmlands on partial hills and mountains.

Drawings

FIG. 1 is a schematic structural diagram of a tractor for an orchard greenhouse according to the invention;

FIG. 2 is a schematic structural view of a covering part of the tractor for the orchard greenhouse;

FIG. 3 is a schematic view of a power assembly and accessories of the tractor for the orchard greenhouse of the invention;

FIG. 4 is a schematic structural view of a steering system of the tractor for the orchard greenhouse;

FIG. 5 is a schematic structural view of a gearbox and a driving device of the tractor for the orchard greenhouse;

fig. 6 is a schematic structural diagram of a hydraulic system and a working device of the tractor for the orchard greenhouse.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

As shown in figure 1: the invention relates to a tractor for an orchard greenhouse, which comprises: the device comprises a covering part A, a power assembly, an accessory B, a steering system C, a gearbox, a driving device D, a hydraulic system and a working device E.

The gearbox and the driving device D are the foundation of the whole machine, and other parts are directly or indirectly fixed on the gearbox and the driving device D. The power assembly and the accessory B are connected above the front parts of the gearbox and the driving device D through bolts; the covering part A is fixed above the power assembly, the accessory B, the gearbox and the driving device D through bolts; the steering system C is fixed above the power assembly, the accessory B, the gearbox and the driving device D through bolts and is positioned below the covering part A; the hydraulic system and the working device E are fixed around the power assembly and the accessory B and the gearbox and the driving device D by bolt pipe clamps and are positioned below the covering part A.

In order to reduce the height of the whole machine and increase the rigidity of a covering part, the portal frame 2 is fixed on a gearbox assembly 59 of the gearbox and driving device D through bolts; the front hood assembly 1 is hinged on the portal frame 2 through a pin shaft; the left floor 12 and the right floor 5 are fixed on two sides of a gearbox assembly 59 of the gearbox and driving device D through bolts; the left rear mudguard assembly 10 and the anti-roll frame left bracket 9 are fixed on the left side of the tail end transmission device 52 of the gearbox and driving device D through bolts; the right rear mudguard assembly 6 and the right bracket 7 of the anti-roll frame are fixed on the right side of the tail end transmission device 52 of the gearbox and driving device D through bolts.

In order to reduce the length of the whole machine, a radiator 14 is fixed at the front part of a bracket assembly of a gearbox and a driving device D through bolts and shock pads, and a supercharger 16, a silencer 17 and an air filter 23 are fixed on a diesel engine assembly 15. The flywheel housing 18 is fixed at the rear part of the diesel engine assembly 15 through bolts and is arranged at the front part of a gearbox assembly 59 of the gearbox and driving device D through bolts; the fuel tank 22 is fixed on the fuel tank bracket 20 through a fastening belt 21 and is installed on the left side of the diesel engine assembly 15 and the front left side of the transmission assembly 59 of the transmission and driving device D through bolts.

In order to ensure the reliability of the steering system, a steering oil pump 39 is fixed in front of the power assembly and the gear chamber of the diesel engine assembly 15 of the accessory B through bolts, is not connected with the hydraulic system and keeps independence; the steering gear 33 and the steering gear bracket 32 are fixed on the portal frame 2 of the covering part A through bolts, and the steering column 31 and the steering gear 33 are arranged inside the rear instrument cover 4 of the covering part A; the steering wheel 30 is mounted on splines of a steering column 31 outside the rear instrument cover 4 of the cover a. The steering gear 33 is connected with the gearbox and the steering oil cylinder 65 of the driving device D through pipelines, so that the steering pipeline is shortened as much as possible, and the flexible and efficient steering is ensured.

In order to improve the reliability of the hydraulic system, a hydraulic oil pump 69 of the hydraulic system and the working device E is connected behind a gear chamber of a diesel engine assembly 15 of a power assembly and an accessory B, a lifter support assembly 77 is connected on a gearbox assembly 59 of a gearbox and a driving device D, and a hydraulic oil tank 66 is installed at the lower part of a bracket assembly 43 of the gearbox and the driving device D through bolts; the lifter bracket 74 is mounted on the upper part of the gearbox assembly 59 of the gearbox and driving device D through bolts; the towing bracket 82 is arranged at the rear part of the gearbox assembly 59 of the gearbox and driving device D through bolts; the limiting rod support 88 is arranged at the lower part of the tail end transmission device 52 of the gearbox and driving device D through bolts; the suspension rod is connected with the rear mounting bracket 8 of the gearbox and driving device D, the hydraulic oil tank 66 is fixed in the mudguard 31 of the covering part A, the hydraulic valve block assembly 75 is fixed on the lifter bracket 74, and the hydraulic system and the working device are connected by oil pipes.

The concrete structure of the covering part A is shown in the attached figure 2, and mainly comprises a front hood assembly 1, a portal frame 2, a rearview mirror 3, a rear instrument cover 4, a right floor 5, a right rear mudguard assembly 6, an anti-turnover frame right bracket 7, an anti-turnover frame upper frame 8, an anti-turnover frame left bracket 9, a left rear mudguard assembly 10, a seat assembly 11, a left floor 12 and a hood locking part 13.

The front hood assembly 1 is hinged on the portal frame 2 through bolts, the portal frame 2 fixes the gearbox and the gearbox assembly 59 of the driving device D through bolts, so that the diesel engine is protected, the lamp is supported, the attractive effect is achieved, and the opening and closing of the lower part are controlled through the hood locking piece 13; the inner side of the front hood assembly 1 is also provided with a gas spring, so that the force during opening and closing can be greatly reduced. The rear instrument cover 4 is fixed at the rear of the portal frame 2 through bolts to support instruments and switches, and the two-side rearview mirrors 3 are fixed on the left and right side supports of the portal frame 2 to facilitate a driver to observe the rear condition of the vehicle.

The left floor 12 and the right floor 5 are fixed on two sides of a gearbox assembly 59 of the gearbox and driving device D through bolts, and the seat assembly 11 is fixed on a lifter bracket 74 of the hydraulic system and the working device E through bolts, so that a driver can conveniently operate and use the seat assembly. The left rear fender assembly 10 and the right rear fender assembly can not only prevent muddy water from splashing, but also ensure the safety of a driver.

The structure of the power assembly and the accessories B is shown in figure 3, and mainly comprises a radiator 14, a diesel engine assembly 15, a supercharger 16, a muffler 17, a flywheel shell 18, a flywheel 19, a fuel tank bracket 20, a fastening belt 21, a fuel tank 22, an air filter 23 and a radiator protection plate 24.

The flywheel housing 18 is fixed at the rear part of the diesel engine assembly 15 through bolts and is arranged at the front part of a gearbox assembly 59 of the gearbox and driving device D through bolts; the flywheel 19 is located inside the flywheel housing 18 and is bolted to the crankshaft of the diesel assembly 15.

The radiator 14 is fixed on a front bracket assembly 43 of the gearbox and the driving device D through bolts; the internal cooling liquid is connected to a water inlet and a water outlet of the diesel engine assembly 15 through pipelines to realize communication with a water channel in the diesel engine assembly 15; the air filter 23 is arranged in the middle of the left side of the diesel engine assembly 15 through a bolt and a bracket; the supercharger 16 is arranged in the middle of an exhaust pipe of the diesel engine assembly 15 through a bolt, air enters the supercharger 16 through an air inlet pipe after being filtered by the air filter 23, and enters the air inlet pipe of the diesel engine assembly 15 after being supercharged to participate in combustion; the muffler 17 is fixed at the exhaust port of the supercharger 16 by bolts, the fuel tank bracket 20 is mounted on the left side of the diesel engine assembly 15 and the front part of the transmission assembly 59 of the transmission and driving device D by bolts, and the fuel tank 22 is fixed on the fuel tank bracket 20 by the fastening belt 21.

The diesel engine assembly 15 is mounted on the gearbox and the driving device D through bolt connection, power is provided for the whole machine, and the power is transmitted to a clutch assembly 62 of the gearbox and the driving device D through a flywheel 19 positioned inside the flywheel shell 18. The cooling liquid in the radiator 14 is connected with a water inlet and a water outlet of the diesel engine assembly 15 through pipelines and is connected with a water channel in the diesel engine assembly 15; cooling the diesel engine assembly 15 by circulating a cooling liquid; the air filter 23 provides clean air, the clean air enters the supercharger 16 through an air inlet pipe, and the supercharged air enters the diesel engine assembly 15 to participate in combustion; high-temperature exhaust gas generated by the diesel engine assembly 15 enters the muffler 17 through the exhaust port of the supercharger 16, and is discharged into the atmosphere after being cooled and muffled. The fuel tank 22 supplies fuel to the diesel engine assembly 15, controls the size of an accelerator, and realizes power change.

The structure of the steering system C is shown in fig. 4, and mainly includes a steering oil can 25, a steering oil can bracket 26, a four-way pipe clamp 27, a steering gear return pipe 28, a steering gear oil inlet pipe 29, a steering wheel 30, a steering column 31, a steering gear bracket 32, a steering gear 33, a left steering oil pipe 34, a right steering oil pipe 35, a pipe clamp 36, a front axle right steering oil pipe 37, a front axle left steering oil pipe 38, a steering oil pump 39 and a steering oil pump oil inlet pipe 40.

The steering oil pump 39 is installed in front of the gear chamber of the diesel engine assembly 15 of the power assembly and the accessory B through a spline, the diesel engine assembly 15 rotates to pressurize hydraulic oil in the steering oil can 25 and then convey the hydraulic oil to the steering gear 33, the steering wheel 30 is installed on the steering column 31 through a spline and a nut, the steering wheel 30 is rotated, the steering column 31 simultaneously rotates a valve core inside the steering gear 33, and high-pressure oil passes through an A port and a B port of the steering gear 33 and is connected to a steering oil cylinder 65 of the gearbox and the driving device D through a left steering oil pipe 34, a right steering oil pipe 35, a front axle left steering oil pipe 38 and a front axle right steering oil pipe 37; the steering oil cylinder 65 pushes the left front driving wheel assembly 63 and the right front driving wheel assembly 41 on the hubs on the left and right sides of the front driving axle assembly 64 of the gearbox and driving device D to realize the steering of the whole machine.

The structure of the gearbox and driving device D is shown in fig. 5, and mainly includes a right front driving wheel assembly 41, a battery pressing plate assembly 42, a front bracket assembly 43, a transmission shaft 44, a right brake pedal 45, a left brake pedal 46, a parking brake handle 47, a right rear driving wheel assembly 48, a main transmission handle 49, an auxiliary transmission handle 50, a differential lock handle 51, a tail end transmission device 52, a brake assembly 53, a PTO operation handle 54, a left rear driving wheel assembly 55, an adjustable hub assembly 56, a driving shaft 57, a four-wheel drive operation handle 58, a gearbox assembly 59, a transfer case 60, a clutch pedal 61, a clutch assembly 62, a left front driving wheel assembly 63, a front driving axle assembly 64 and a steering oil cylinder 65.

The gearbox and driving device D is used for transmitting the power of the power assembly and the diesel engine assembly 15 of the accessory B, and the functions of PTO power output and walking system driving are realized. Partial power of the diesel engine assembly 15 of the power assembly and the accessory B drives the left rear driving wheel assembly 55 and the right rear driving wheel assembly 48 to rotate through the adjustable hub assembly 56 through the gearbox assembly 59, the tail end transmission device 52 and the driving shaft 57, and the walking function of the whole machine is realized. The four-wheel drive operating handle 58 is pressed down, the shifting fork shaft in the transfer case 60 is rotated through the connecting rod, so that part of power is transmitted to the transfer case 60 and is transmitted to the front drive axle assembly 64 through the transmission shaft 44, and the four-wheel drive function of the whole machine is realized. The differential lock handle 51 is operated to rotate a differential lock shifting fork shaft of the gearbox assembly 59, a left gear and a right gear of the differential are locked, and the left rear driving wheel assembly 55 and the right rear driving wheel assembly 48 can only rotate at the same speed. The PTO control handle 54 is rotated to combine with the gear on the power output shaft at the rear of the transmission assembly 59, so that the power transmission of the power assembly and the diesel engine assembly 15 of the accessory B can be realized, and the rotation speed switching of the power output shaft can be realized to provide power output for the articulated working machine.

The clutch pedal 61 is stepped, and the friction plates of the clutch assembly 62 are separated, so that the power of the diesel engine can be cut off, and the transmission system can be conveniently put into gear; the main gear shift handle 49 is operated, different working gears can be selected, the walking speed is adjusted, and the operation efficiency is improved; the auxiliary speed changing handle 50 is operated to select the high gear and the low gear of the gearbox to realize speed changing; the service braking function can be realized by stepping down the left brake pedal 46 and the right brake pedal 45; the parking brake handle 47 can lock the left brake pedal 46 and the right brake pedal 45, thereby realizing the parking brake function.

The structure of the hydraulic system and the working device E is shown in fig. 6, and mainly includes a hydraulic oil tank 66, a hydraulic oil pump oil inlet pipe 67, a hydraulic oil tank vent pipe 68, a hydraulic oil pump 69, a hydraulic oil pump oil outlet pipe 70, a hydraulic output left control handle 71, a hydraulic output right control handle 72, a push-pull flexible shaft 73, a lifter bracket 74, a lifting control handle 75, a hydraulic multi-way valve assembly 76, an upper pull rod hook rod 77, an upper pull rod 78, a hydraulic output port 79, a lifting arm 80, a lifting rod 81, a towing bracket 82, a lower pull rod 83, a towing fork 84, a towing fork lock pin 85, a limit rod 86, a lifting oil cylinder 87, a limit rod support 88, a multi-way valve pipeline 89, a lifting oil cylinder pipeline 90, a pressure regulating valve 91, a multi-way valve oil return pipe 92, and a hydraulic oil tank filler cap 93.

The hydraulic system converts the power part of the diesel engine into the pressure of the hydraulic system by means of a hydraulic oil pump 69, and the action of the whole hydraulic system is controlled by a hydraulic multi-way valve assembly 76. The lifting control handle 75 is operated, the push-pull flexible shaft 73 controls the valve core of the hydraulic multi-way valve assembly 76, the flow direction of hydraulic oil in the lifting oil cylinder 87 is changed, the piston rod is driven to stretch, the lifting arm 80 is pushed to rotate around the lifting shaft, the lower pull rod 83 is lifted or put down through the lifting rod 81, and the lifting of the suspension is realized; the length of the limiting rod 86 is adjusted to limit the lower pull rod 83 left and right, and the swing amount of the machine tool is controlled. The left hydraulic output control handle 71 and the right hydraulic output control handle 72 are controlled to control the valve core of the hydraulic multi-way valve assembly 76 through the push-pull flexible shaft 73, so that the flow direction of hydraulic oil in the hydraulic output port 79 is changed, and the hydraulic output function is realized.

The tractor for the orchard greenhouse is reasonable in overall arrangement, and the overall structure size is reduced and the wheelbase is shortened by adopting methods of a compact gearbox, a driving device, a laterally arranged fuel tank, an adjustable hub, a compact suspension mechanism, a vertically arranged silencer and the like; secondly, the operation arrangement is carried out according to the ergonomic requirement of the tractor, so that the operation is convenient and the steering is flexible in a narrow space; thirdly, the compact gearbox and the driving device optimize the internal space, reduce the size on the basis of ensuring the functions, and have reasonable speed design, stable operation and high operation efficiency; fourthly, the steering system is independent of other systems, is directly powered by the diesel engine, and is safe and reliable. Fifthly, on the basis of not increasing the size of the whole machine, a large-capacity L-shaped fuel tank is adopted, and the operation time is prolonged. Sixth, compact covering piece style is bright and fast, elegant appearance. Can be matched with various machines and tools to meet the operation requirements of narrow spaces such as spraying, pruning, rotary tillage, fertilizing, weeding and the like, and can also be used for the operation of farmlands on partial hills and mountains.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.