CN210157605U

CN210157605U - Bed pavement machine

Info

Publication number: CN210157605U
Application number: CN201920777026.5U
Authority: CN
Inventors: 刘文亮; 刘枫; 李健; 张亮; 李佳; 王新阳; 姜彩宇; 孔令有; 胡浩; 肖戟; 董润坚; 文正彪; 付家庆; 刘文丛; 王婧; 张苏; 杨跃华
Original assignee: Jilin Academy of Agricultural Machinery
Current assignee: Jilin Academy of Agricultural Machinery
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-03-20
Anticipated expiration: 2029-05-28

Abstract

The utility model provides a rectangular pieces of land in a field bed pavement machine belongs to agricultural machine technical field, including frame, engine, output belt pulley, head handlebar assembly, jackshaft subassembly I, V belt II, jackshaft subassembly II, land wheel subassembly, left soil throwing wheel subassembly, afterbody handlebar assembly, control subassembly, gear box assembly, right soil throwing wheel subassembly etc.. The utility model is suitable for a rhizome class chinese-medicinal material of level and gentle slope piece plants ditching and bed work of rectangular pieces of land in a field bed has the excavation pavement, holds up soil, repaiies functions such as shape and compaction side group, compares with traditional manual work mode, has apparent ground raise the efficiency, practice thrift artifical, alleviate intensity of labour, reduce the effect of operating cost.

Description

Bed pavement machine

Technical Field

The utility model belongs to the technical field of agricultural machine, especially, relate to a bed of rectangular pieces of land in a field pavement machine.

Background

The famous Chinese medicinal materials represented by ginseng and pseudo-ginseng are used as the characteristic economic crops of China, and the planting history is thousands of years. When planting, the wide-width ridge bed planting mode is mainly adopted, so that the late field management and drainage and waterlogging prevention are facilitated. The ridge-up bed is made by deep-rotating the soil with a rotary cultivator, excavating a plurality of footpaths at equal intervals on the rotated soil, and forming a planting ridge-up bed between the two footpaths. The traditional footpath excavation adopts a manual operation mode, the labor intensity is high, the efficiency is low, particularly during the sowing and soil preparation, the labor force is short, and the farming time is delayed because people cannot be hired. Some traditional Chinese medicine growers also adopt small-sized field management machines to excavate footpaths, but the footpaths excavated by the field management machines are narrow, small and low, so that the footpaths are not beneficial to people to walk, and the ventilation and water permeability requirements of rhizome traditional Chinese medicines cannot be met; the surface and the side walls of the ridge bed are not smooth, particularly, the side walls of the ridge bed cannot be compacted and reinforced, secondary finishing is needed manually, and the labor-saving effect is not ideal.

Therefore, a new technical solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the background art in not enough, provide a self-propelled rectangular pieces of land in a field bed pavement machine, have and excavate the pavement, hold up native, repair functions such as shape and compaction side group for solve present some chinese-medicinal material growers and adopt small-size rural area supervisor to carry out the pavement and excavate, the pavement is narrow and little and can not carry out the compaction to rectangular pieces of land in a field bed side group and consolidate, still need the manual work to carry out the technical problem that the secondary was maintained.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a bed walker comprises a frame, an engine, an output belt pulley, a head handlebar assembly, a triangular belt I, a tension spring II, a middle shaft assembly I, a triangular belt II, a middle shaft assembly II, a land wheel assembly, a left soil throwing wheel assembly, a tail handlebar assembly, a control assembly, a gear box assembly, a right soil throwing wheel assembly, a chain I and a chain II;

the two sides of the rack are a rack side plate I and a rack side plate II which are symmetrically arranged, and an engine base plate is arranged at the upper part of the rack; the engine is fixedly connected with the engine seat plate through bolts;

a belt pulley I is fixedly installed at one end of an intermediate shaft I of the intermediate shaft assembly I, a chain wheel I is fixedly installed at the other end of the intermediate shaft I, and two ends of the intermediate shaft I are respectively connected with a rack side plate I and a rack side plate II through bearings;

a belt pulley II is fixedly installed at one end of an intermediate shaft II of the intermediate shaft assembly II, a chain wheel II is fixedly installed at one end of the intermediate shaft II, and two ends of the intermediate shaft II are respectively connected with the rack side plate I and the rack side plate II through bearings;

the output belt pulley is of a double-groove cone pulley type structure, is fixedly connected with an output shaft of the engine through a flat key, is connected with the belt pulley I through a triangular belt I, and is connected with the belt pulley II through a triangular belt II;

the chain wheel I is connected with a gear box input chain wheel of the gear box assembly through a chain I;

the chain wheel II is connected with a ground wheel input chain wheel of the ground wheel assembly through a chain II;

the input chain wheel of the gear box is fixedly connected with one end of the input shaft of the gear box through a flat key and a jackscrew; the gear box input shaft is provided with a gear shifting inner gear; the middle part of the gear box input shaft is provided with an external gear for shifting, the external gear for shifting is meshed with a spline on the gear box input shaft and slides on the gear box input shaft, and the external gear for shifting is intermittently connected with the internal gear for shifting;

the control assembly comprises a front gear plate, a front control lever I, a front control lever II, a pull rod I, a pull rod II, a rear gear plate, a rear control lever I, a rear control lever II, a tension wheel I and a tension wheel II;

the front gear plate is an inverted L-shaped bent plate, the upper flat plate of the front gear plate is provided with two long holes, one end of each long hole is provided with a bayonet protruding to one side, and the side wall plate of the front gear plate is fixedly connected with the engine through a bolt; the upper part of the front operating lever I penetrates through a long hole of the front gear plate and is clamped with a bayonet of the long hole, the middle protruding part of the front operating lever I is rotatably connected with a tensioning wheel I, the lower part of the front operating lever I is rotatably connected with a side wall plate of the front gear plate through a pin shaft, and the lower end of the front operating lever I is connected with the rack through a tension spring I; the upper part of the front operating lever II penetrates through the other long hole of the front gear plate and is clamped with a bayonet of the long hole, the middle protruding part of the front operating lever II is rotatably connected with a tensioning wheel II, the lower part of the front operating lever II is rotatably connected with a side wall plate of the front gear plate through a pin shaft, and the lower end of the front operating lever II is connected with the rack through a tension spring II;

the rear gear plate is an inverted L-shaped bent plate, the upper flat plate of the rear gear plate is provided with two long holes, one end of each long hole is provided with a bayonet protruding to one side, and the rear gear plate is fixedly connected with the gear box assembly through a bolt; the lower end of the rear operating lever I is rotatably connected with a side wall plate of the rear gear plate through a pin shaft, and the upper part of the rear operating lever I penetrates through a long hole of the rear gear plate and is clamped with a bayonet of the long hole; the lower end of the rear operating lever II is rotatably connected with a side wall plate of the rear gear plate through a pin shaft, and the upper part of the rear operating lever II penetrates through another long hole of the rear gear plate and is clamped with a bayonet of the long hole;

two ends of the pull rod I are respectively and rotatably connected with the front operating lever I and the rear operating lever I through pin shafts; two ends of the pull rod II are respectively and rotatably connected with the front operating lever II and the rear operating lever II through pin shafts;

the head handlebar assembly is fixedly connected with the rack side plate I and the rack side plate II through bolts respectively;

the tail handlebar assembly is fixedly connected with the gearbox assembly through a connecting plate III and a connecting plate IV respectively; the gear box assembly is fixedly connected with the rack side plate I and the rack side plate II through bolts respectively;

two ends of the land wheel assembly are fixedly connected with a rack side plate I and a rack side plate II through bearing seats respectively;

the left soil throwing wheel assembly comprises a left cutter head and a left soil throwing blade; the left cutter head is formed by welding a disk plate and cutter seats uniformly distributed along the circumferential direction of the disk plate, connecting holes are uniformly formed in the circumferential direction of the disk plate, and the left cutter head is fixedly connected with a left output shaft of a gear box of the gear box assembly through the connecting holes and bolts; the cutter holder is fixedly connected with a left soil throwing blade through a bolt;

the right soil throwing wheel assembly comprises a right cutter head and a right soil throwing blade; the right cutter head is formed by welding a disk plate and cutter seats uniformly distributed along the circumferential direction of the disk plate, connecting holes are uniformly formed in the circumferential direction of the disk plate, and the right cutter head is fixedly connected with a right output shaft of a gear box of the gear box assembly through the connecting holes and bolts; the cutter holder is fixedly connected with a right throwing blade through a bolt.

The frame comprises a frame side plate I, an engine seat plate, a frame side plate II and a connecting column; the engine seat plate is fixedly connected with the rack side plate I and the rack side plate II respectively in a welding mode; the quantity of spliced pole is more than two, and the both ends of spliced pole are respectively through bolt and frame curb plate I and II fixed connection of frame curb plate, form frame construction.

The head handlebar assembly comprises a head handlebar, a connecting plate I and a connecting plate II; the head handlebar is formed by bending a round steel pipe; the connecting plate I and the connecting plate II are fixedly connected with a head handlebar in a welding mode respectively, and the connecting plate I and the connecting plate II are fixedly connected with a rack side plate I and a rack side plate II respectively through bolts.

The land wheel assembly comprises a land wheel shaft, a land wheel, a connecting block, a land wheel input chain wheel, a bearing I, a bearing seat I, a bearing II and a bearing seat II, wherein one end of the land wheel assembly is fixedly connected with a rack side plate I through the bearing seat I, and the other end of the land wheel assembly is fixedly connected with a rack side plate II through the bearing seat II; the connecting block is fixedly connected to the middle part of the land wheel shaft through a flat key and a set screw, and the connecting block is fixedly connected with a steel ring on the land wheel through a bolt; the bearing I and the bearing II are respectively positioned at two ends of the land wheel shaft, and the bearing I is rotatably connected with the bearing seat I; the bearing II is rotationally connected with the bearing seat II; the land wheel input chain wheel is fixedly connected with the land wheel shaft through a flat key.

The gear box assembly comprises a gear box body, a gear box input shaft combination, a shifting fork shaft combination, a gear box intermediate shaft combination, a gear shaft combination, a left output shaft combination, a right output shaft combination and a chain III;

the gearbox input shaft assembly comprises a gearbox input shaft, a gear shifting inner gear, a gear shifting outer gear, a gearbox input chain wheel, a bearing III and a bearing IV, and the gearbox input shaft assembly is rotationally connected with the gearbox body through the bearing III and the bearing IV; wherein, the input chain wheel of the gear box is fixedly connected with one end of the input shaft of the gear box through a flat key and a jackscrew; the bearing III is arranged on the input shaft of the gear box and is positioned on the inner side of the input chain wheel of the gear box; the bearing IV is arranged at the other end of the input shaft of the gear box; the gear shifting inner gear is arranged on the input shaft of the gear box and rotates on the input shaft of the gear box;

the shifting fork shaft assembly comprises a shifting fork shaft and a shifting fork sheet; the shifting fork piece is fixedly connected with the shifting fork shaft through a set screw, and the shifting fork piece is connected with the gear-shifting external gear; both ends of the shifting fork shaft are arranged in a through hole on the gear box body, and the shifting fork shaft moves axially along the through hole;

the gearbox intermediate shaft combination comprises a gearbox intermediate shaft, a large gear, a small chain wheel, a bearing V and a bearing VI, and the gearbox intermediate shaft combination is rotationally connected with the gearbox body through the bearing V and the bearing VI; the large gear is fixedly connected to the intermediate shaft through a flat key and is meshed and connected with an output gear on the gear shifting inner gear; the bearing V and the bearing VI are respectively arranged at two ends of an intermediate shaft of the gear box;

the gear shaft combination comprises a bevel gear I, a gear shaft, a large chain wheel, a bevel gear II, a bearing VII and a bearing VIII, and the gear shaft combination is rotationally connected with the gear box body through the bearing VII and the bearing VIII; the bevel gear I and the bevel gear II are respectively arranged at the end positions of two ends of the gear shaft through flat keys and set screws; the bearing VII and the bearing VIII are respectively arranged at two ends of the gear shaft, the bearing VII is positioned on the inner side of the bevel gear I, and the bearing VIII is positioned on the inner side of the bevel gear II; the large chain wheel is fixedly connected with the middle part of the gear shaft through a flat key and is connected with the small chain wheel in the middle shaft combination through a chain III;

the left output shaft assembly comprises a left output shaft, a left output bearing seat, a bearing IX, a bearing X and a bevel gear III, and the left output shaft assembly is fixedly connected with the gear box body through the bearing seat; the bevel gear III is arranged at one end of the left output shaft through a flat key and a set screw and is in meshed connection with the bevel gear I; the bearings IX and X are respectively arranged at two ends of the left output shaft; the left output shaft is rotatably connected with the left output shaft bearing seat through a bearing IX and a bearing X;

the right output shaft assembly comprises a right output shaft, a bevel gear IV, a right output bearing seat, a bearing XI and a bearing XII, and the right output shaft assembly is fixedly connected with the gear box body through the bearing seat; the bevel gear IV is arranged at one end of the right output shaft through a flat key and a set screw and is in meshed connection with the bevel gear II; the bearing XI and the bearing XII are respectively arranged at two ends of the right output shaft; and the right output shaft is rotationally connected with a bevel gear IV through a bearing XI and a bearing XII.

The tail handlebar assembly comprises a tail handlebar welding piece, a left soil retaining plate combination and a right soil retaining plate combination, and is fixedly connected with the gear box assembly through a connecting plate III and a connecting plate IV respectively; the tail handlebar welding part comprises a tail handlebar, a cross beam, an adjusting plate I, a connecting plate III, a connecting plate IV and an adjusting plate II; the tail handle is formed by bending a round steel pipe; the adjusting plate I and the adjusting plate II are symmetrically arranged, the adjusting plate I and the adjusting plate II are bending plates with two ends bent towards the same side, one end of each bending plate is large in bending surface, a large round hole and small round holes distributed along the center of the large round hole in a circumferential mode are formed in the bending surface, the other end of each bending plate is small in bending surface, a large round hole is formed in the bending surface, and the large round hole is coaxial with the large round hole in the large bending surface; the beam, the adjusting plate I, the adjusting plate II, the connecting plate III and the connecting plate IV are fixedly connected with a tail handlebar in a welding mode respectively;

the left soil retaining plate combination comprises a left soil retaining plate, a bent rod welding piece I, a limiting seat I and a compression spring I, and the left soil retaining plate combination is rotatably connected with an adjusting plate I; the bent rod welding part I comprises a bent rod I, a pin plate I and a pin I; one end of the pin plate I is sleeved outside the bent rod I and is fixedly connected with the bent rod I, and a pin I is welded on the end face of the other end of the pin plate I; the left soil retaining plate and the limiting seat I are fixedly connected with the bent rod welding piece I through bolts respectively; the compression spring I is sleeved on the bent rod welding piece I, one end of the compression spring I is connected with the limiting seat I, and the other end of the compression spring I is connected with the larger bending surface of the adjusting plate I; the pin I is inserted into a small round hole of the adjusting plate I;

the right soil blocking plate combination comprises a right soil blocking plate, a bent rod welding piece II, a limiting seat II and a compression spring II, and the right soil blocking plate combination is rotatably connected with an adjusting plate II; the bent rod welding part II comprises a bent rod II, a pin plate II and a pin II; one end of the pin plate II is sleeved outside the bent rod II and is fixedly connected with the bent rod II, and a pin I is welded on the end face of the other end of the pin plate I; the right soil baffle and the limiting seat II are respectively and fixedly connected with a bent rod welding piece II through bolts; the compression spring II is sleeved on the bent rod welding piece II, one end of the compression spring II is connected with the limiting seat II, and the other end of the compression spring II is connected with the larger bending surface of the adjusting plate II; and the pin II is inserted into a small round hole of the adjusting plate II.

The intermediate shaft component I comprises an intermediate shaft I, a belt pulley I, an intermediate shaft bearing seat I, a bearing XIII, an intermediate shaft bearing seat II, a bearing XIV and a chain wheel I; the belt pulley I and the chain wheel I are respectively arranged at the end heads of the two ends of the intermediate shaft I through flat keys and set screws; the bearing XIII and the bearing XIV are respectively arranged at two ends of the intermediate shaft I, the bearing XIII is positioned on the inner side of the belt pulley I, and the bearing XIV is positioned on the inner side of the chain wheel I; one end of the middle shaft I is rotatably connected with the rack side plate I through a middle shaft bearing seat I, and one end of the middle shaft I is rotatably connected with the rack side plate II through a middle shaft bearing seat II; the belt pulley I is connected with the output belt pulley through a triangular belt I; sprocket I pass through chain I and be connected with gear box input sprocket.

The intermediate shaft component II comprises an intermediate shaft II, a belt pulley II, an intermediate shaft bearing seat III, a bearing XV, an intermediate shaft bearing seat IV, a bearing XVI and a chain wheel II; the belt pulley II and the chain wheel II are respectively arranged at the end heads of the two ends of the intermediate shaft II through a flat key and a set screw; the bearing XV and the bearing XVI are respectively arranged at two ends of the intermediate shaft II, the bearing XV is positioned at the inner side of the belt pulley II, and the bearing XVI is positioned at the inner side of the chain wheel II; one end of the middle shaft II is rotatably connected with the rack side plate I through a middle shaft bearing seat III, and the other end of the middle shaft II is rotatably connected with the rack side plate II through a middle shaft bearing seat IV; the belt pulley II is connected with the output belt pulley through a triangular belt II; and the chain wheel II is connected with the land wheel input chain wheel through a chain II.

Through the design scheme, the utility model discloses bring following beneficial effect:

a bed walking machine drives a land wheel to automatically walk and a working part soil throwing wheel to rotate through an engine, and controls the start and stop of a walking system through a tensioning clutch device; the rotation and the stop of the soil throwing wheel are controlled by a double-clutch mode of a tensioning clutch and an inner and outer gear engaging gear; the obliquely arranged soil throwing wheels rotating at high speed can effectively throw the excavated soil to two sides, and play roles in digging a footpath and heightening a bed surface; meanwhile, the soil throwing wheel also has certain functions of soil crushing and side slope compacting. The method can realize the walk-making and bed-building operation of the Chinese medicinal material planting bed through one-time operation, breaks through the technical problem of mechanized bed building of the genuine Chinese medicinal materials such as ginseng, pseudo-ginseng and the like, and is favorable for promoting the popularization of the standardized, large-scale and standardized planting mode of the genuine Chinese medicinal materials.

The utility model is suitable for a rhizome class chinese-medicinal material of level and gentle slope piece plants ditching and bed work of rectangular pieces of land in a field bed has the excavation pavement, holds up soil, repaiies functions such as shape and compaction side group, compares with traditional manual work mode, has apparent ground raise the efficiency, practice thrift artifical, alleviate intensity of labour, reduce the effect of operating cost.

Drawings

The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings.

Fig. 1 is a first structural schematic view of the bed-walking machine of the present invention.

Fig. 2 is a schematic structural view of a bed-walking machine of the present invention.

Fig. 3 is a schematic view of a frame structure of the border bed footpath machine of the present invention.

Fig. 4 is a schematic structural view of a head handle bar assembly of the border bed footpath machine of the present invention.

Fig. 5 is a schematic structural view of a control assembly of the bedder footpath machine of the present invention.

Fig. 6 is a schematic structural view of a land wheel assembly of the border bed footpath machine of the present invention.

Fig. 7 is a first schematic view of a gear box assembly of a border bed footpath machine of the present invention.

Fig. 8 is a schematic view of a gear box assembly structure of the border bed footpath machine of the present invention.

Fig. 9 is a third schematic view of the gear box assembly structure of the border bed footpath machine of the present invention.

Fig. 10 is a fourth schematic view of the gear box assembly of the border bed footpath machine of the present invention.

Fig. 11 is a schematic view of the gear box input shaft combination structure of the bedder footpath machine of the present invention.

Fig. 12 is a schematic view of a fork shaft assembly of the bedder footpath machine of the present invention.

Fig. 13 is a schematic view of a gear box and intermediate shaft combined structure of the border bed footpath machine of the present invention.

Fig. 14 is a schematic view of a gear shaft assembly structure of the bedder footpath machine of the present invention.

Fig. 15 is a schematic view of a left output shaft combination structure of the border bed footpath machine of the present invention.

Fig. 16 is a schematic view of a right output shaft assembly of the border bed footpath machine of the present invention.

Fig. 17 is a structural schematic view of a tail handle bar assembly of the border bed footpath machine of the present invention.

Fig. 18 is a structural schematic view of a welding piece of a handle bar at the tail part of the ridged-field bed footpath machine of the present invention.

Fig. 19 is the utility model discloses a left soil guard plate integrated configuration sketch map of rectangular pieces of land in a field bed pavement machine.

Fig. 20 is a schematic structural view of a curved bar welding piece i of the bedder footpath machine of the present invention.

Fig. 21 is a schematic view of a right soil guard assembly of the border bed footpath machine of the present invention.

Fig. 22 is the structural schematic view of a curved bar welding piece II of the bedder footpath machine of the utility model.

Fig. 23 is the utility model discloses a I structural schematic of jackshaft subassembly of rectangular pieces of land in a field bed pavement machine.

Fig. 24 is the utility model discloses a II structural schematic of jackshaft subassembly of rectangular pieces of land in a field bed pavement machine.

Fig. 25 is a schematic structural view of a left soil throwing wheel assembly of the border bed footpath machine of the present invention.

Fig. 26 is a schematic structural view of a right soil throwing wheel assembly of the bedder footpath machine of the present invention.

Wherein: 1-frame, 2-engine, 3-output belt pulley, 4-head handlebar assembly, 5-V belt I, 6-tension spring I, 7-tension spring II, 8-middle shaft assembly I, 9-V belt II, 10-middle shaft assembly II, 11-land wheel assembly, 12-left soil throwing wheel assembly, 13-tail handlebar assembly, 14-operation assembly, 15-gear box assembly, 16-right soil throwing wheel assembly, 17-chain I, 18-chain II, 19-frame side plate I, 20-engine seat plate, 21-frame side plate II, 22-connecting column, 23-head handlebar, 24-connecting plate I, 25-connecting plate II, 26-front gear plate, 27-front control rod I, 28-front control rod II, 29-pull rod I, 30-pull rod II, 31-rear gear plate, 32-rear operating lever I, 33-rear operating lever II, 34-tensioning wheel I, 35-tensioning wheel II, 36-ground wheel shaft, 37-ground wheel, 38-connecting block, 39-ground wheel input chain wheel, 40-bearing I, 41-bearing seat I, 42-bearing II, 43-bearing seat II, 44-gear box body, 45-gear box input shaft combination, 46-declutch shift shaft combination, 47-gear box intermediate shaft combination, 48-gear shaft combination, 49-left output shaft combination, 50-right output shaft combination, 51-chain III, 52-gear box input shaft, 53-gear shift, 54-gear shift, 55-gear box input chain wheel, external gear, 55-gear box input chain wheel, 56-bearing III, 57-bearing IV, 58-shifting fork shaft, 59-shifting fork sheet, 60-gearbox intermediate shaft, 61-large gear, 62-small chain wheel, 63-bearing V, 64-bearing VI, 65-bevel gear I, 66-gear shaft, 67-large chain wheel, 68-bevel gear II, 69-bearing VII, 70-bearing VIII, 71-left output shaft, 72-left output bearing seat, 73-bearing IX, 74-bearing X, 75-bevel gear III, 76-right output shaft, 77-bevel gear IV, 78-right output bearing seat, 79-bearing XI, 80-bearing XII, 81-tail handlebar welding element, 82-left soil retaining plate assembly, 83-right soil retaining plate assembly, 84-tail handlebar assembly, 85-beam, 86-adjusting plate I, 87-connecting plate III, 88-connecting plate IV, 89-adjusting plate II, 90-left soil retaining plate, 91-bent rod welding piece I, 92-limiting seat I, 93-compression spring I, 94-bent rod II, 95-pin plate II, 96-pin plate II, 97-right soil retaining plate, 98-bent rod welding piece II, 99-limiting seat II, 100-compression spring II, 101-bent rod II, 102-pin plate II, 103-pin plate II, 104-intermediate shaft I, 105-belt pulley I, 106-intermediate shaft bearing seat I, 107-bearing XIII, 108-intermediate shaft bearing seat II, 109-bearing XIV, 110-chain wheel I, 111-intermediate shaft II, 112-belt pulley II, 113-intermediate shaft bearing seat III, 114-bearing XV, 115-intermediate shaft bearing seat IV, 116-bearing XVI, 117-chain wheel II, 118-left cutter head, 119-left soil throwing blade, 120-right cutter head and 121-right soil throwing blade.

Detailed Description

As shown in the figure, the ridged field bed pavement maker comprises a rack 1, an engine 2, an output belt pulley 3, a head handlebar assembly 4, a triangular belt I5, a tension spring I6, a tension spring II 7, a middle shaft assembly I8, a triangular belt II 9, a middle shaft assembly II10, a land wheel assembly 11, a left soil throwing wheel assembly 12, a tail handlebar assembly 13, an operation assembly 14, a gear box assembly 15, a right soil throwing wheel assembly 16, a chain I17, a chain II 18 and the like.

The frame 1 comprises a frame side plate I19, an engine base plate 20, a frame side plate II 21 and a plurality of connecting columns 22, wherein the engine base plate 20 is fixedly connected with the frame side plate I19 and the frame side plate II 21 in a welding mode; each connecting column 22 is fixedly connected with a rack side plate I19 and a rack side plate II 21 through bolts respectively to form a frame structure.

The engine 2 is fixedly connected with an engine base plate 20 on the frame 1 through bolts.

The output belt pulley 3 is of a double-groove cone pulley type structure, is fixedly connected with an output shaft of the engine 2 through a flat key and rotates along with a power output shaft of the engine 2.

The head handlebar assembly 4 comprises a head handlebar 23, a connecting plate I24 and a connecting plate II 25; the head handlebar 23 is formed by bending a round steel pipe and is U-shaped; the connecting plate I24 and the connecting plate II 25 are fixedly connected with the head handlebar 23 respectively in a welding mode; the head handlebar assembly 4 is fixedly connected with the rack side plate I19 and the rack side plate II 21 through bolts respectively through a connecting plate I24 and a connecting plate II 25.

The operating assembly 14 comprises a front gear plate 26, a front operating lever I27, a front operating lever II 28, a pull rod I29, a pull rod II 30, a rear gear plate 31, a rear operating lever I32, a rear operating lever II 33, a tension pulley I34 and a tension pulley II 35.

The front gear plate 26 is an inverted L-shaped bent plate, two long holes are formed in the upper plane, protruding bayonets protruding towards one side are respectively formed at the tail ends of the long holes, and the front gear plate 26 is fixedly connected with the engine 2 through bolts; the shapes of the front operating lever I27 and the front operating lever II 28 are similar to an F shape, and the middle parts of the front operating lever I27 and the front operating lever II 28 are respectively and rotatably connected with a tension wheel I34 and a tension wheel II 35; the lower parts of the front operating lever I27 and the front operating lever II 28 are respectively and rotatably connected with a side wall plate of the front gear plate 26 through pin shafts, and the upper half parts of the front operating lever I27 and the front operating lever II 28 respectively penetrate through a long hole of the front gear plate 26 and can be clamped with a bayonet of the long hole; the lower ends of the front operating lever I27 and the front operating lever II 28 are respectively connected with the rack 1 in a hanging mode through a tension spring I6 and a tension spring II 7.

The rear gear plate 31 is an inverted L-shaped bent plate, two long holes are formed in the upper plane, protruding bayonets protruding towards one side are respectively formed at the tail ends of the long holes, and the rear gear plate 31 is fixedly connected with the gear box assembly 15 through bolts; the lower ends of the rear operating lever I32 and the rear operating lever II 33 are respectively rotatably connected with the side wall plate of the rear gear plate 31 through pin shafts, and the upper half parts of the rear operating lever I32 and the rear operating lever II 33 respectively penetrate through a long hole of the rear gear plate 31 and can be clamped with a bayonet of the long hole.

Two ends of the pull rod I29 are respectively connected with the front operating lever I27 and the rear operating lever I32 in a rotating mode through pin shafts; two ends of the pull rod II 30 are respectively connected with the front operating lever II 28 and the rear operating lever II 33 in a rotating mode through pin shafts.

The land wheel assembly 11 comprises a land wheel shaft 36, a land wheel 37, a connecting block 38, a land wheel input chain wheel 39, a bearing I40, a bearing seat I41, a bearing II 42 and a bearing seat II 43; the connecting block 38 is fixedly connected to the middle part of the land wheel shaft 36 through a flat key and a set screw, and is fixedly connected with a steel ring on the land wheel 37 through a bolt; the bearing I40 and the bearing II 42 are positioned at two ends of the land wheel shaft 36 and are respectively in rotary connection with the bearing seat I41 and the bearing seat II 43; the land wheel input chain wheel 39 is fixedly connected with the land wheel shaft 36 through a flat key and can rotate together; the land wheel assembly 11 is fixedly connected with the rack side plate I19 and the rack side plate II 21 through bolts respectively through a bearing seat I41 and a bearing seat II 43.

The gear box assembly 15 comprises a gear box body 44, a gear box input shaft combination 45, a shifting fork shaft combination 46, a gear box intermediate shaft combination 47, a gear shaft combination 48, a left output shaft combination 49, a right output shaft combination 50 and a chain III 51.

The gearbox input shaft assembly 45 includes: a gearbox input shaft 52, a gear shifting inner gear 53, a gear shifting outer gear 54, a gearbox input chain wheel 55, a bearing III 56 and a bearing IV 57; wherein the gearbox input chain wheel 55 is fixedly connected with one end of the gearbox input shaft 52 through a flat key and a jackscrew; the bearing III 56 is arranged on the input shaft 52 of the gearbox and is positioned on the inner side of the input chain wheel 55 of the gearbox; and the bearing IV 57 is arranged at the other end of the gearbox input shaft 52. The gear shifting internal gear 53 is arranged at the right position in the middle of the gearbox input shaft 52 and can rotate on the gearbox input shaft 52; the middle part of the gearbox input shaft 52 is provided with the external gear shifting gear 54, and the external gear shifting gear 54 is driven by the spline on the gearbox input shaft 52 to rotate together, meanwhile, the external gear shifting gear 54 can move axially along the spline on the gearbox input shaft 52 under the pushing of the shifting fork piece 59, and when the external gear shifting gear 54 is shifted into the internal gear shifting gear 53, the internal gear shifting gear 53 is driven to rotate together. When the external gear 54 does not move into the internal gear 53, the internal gear 53 idles on the input shaft 52 of the gear box, and in this case, the power is not transmitted in a neutral state. The gear box input shaft assembly 45 is rotatably connected with the gear box body 44 through a bearing III 56 and a bearing IV 57.

The fork shaft assembly 46 includes: a fork shaft 58 and a fork piece 59; the shifting fork piece 59 is fixedly connected with the shifting fork shaft 58 through a set screw, and the shifting fork piece 59 is fixed on the shifting fork shaft; the fork shaft 58 is mounted at both ends in a through hole in the gear housing 44 and is axially movable along the through hole.

The gearbox intermediate shaft combination 47 comprises: a gear box intermediate shaft 60, a large gear 61, a small chain wheel 62, a bearing V63 and a bearing VI 64; the bull gear 61 is fixedly connected to the middle right position of the intermediate shaft through a flat key and is in meshing transmission with an output gear on the gear shifting internal gear 53; the bearing V63 and the bearing VI 64 are respectively arranged at two ends of the intermediate shaft 60 of the gearbox; the gearbox intermediate shaft combination 47 is rotationally connected with the gearbox body 44 through a bearing V63 and a bearing VI 64.

The gear shaft assembly 48 includes: a bevel gear I65, a gear shaft 66, a large chain wheel 67, a bevel gear II 68, a bearing VII 69 and a bearing VIII 70; the bevel gears I65 and II 68 are arranged at two ends of the gear shaft 66 through flat keys and set screws; the bearings VII 69 and VIII 70 are respectively arranged at two ends of the gear shaft 66 and are positioned at the inner sides of the bevel gear I65 and the bevel gear II 68; the large chain wheel 67 is fixedly connected with the middle part of the gear shaft 66 through a flat key and is hung with the small chain wheel 62 in the intermediate shaft combination through a chain III 51; the gear shaft combination 48 is rotationally connected with the gear box body 44 through a bearing VII 69 and a bearing VIII 70.

The left output shaft assembly 49 includes: a left output shaft 71, a left output bearing seat 72, a bearing IX 73, a bearing X74 and a bevel gear III 75; the bevel gear III 75 is arranged at one end of the left output shaft 71 through a flat key and a set screw and is in meshed transmission with the bevel gear I65; the bearing IX 73 and the bearing X74 are respectively arranged at two ends of the left output shaft 71; the left output shaft 71 is rotatably connected with a left output shaft bearing seat 72 through a bearing IX 73 and a bearing X74; the left output shaft assembly 49 is fixedly connected with the gear box body 44 through a bearing seat by bolts.

The right output shaft assembly 50 includes: a right output shaft 76, a bevel gear IV 77, a right output bearing seat 78, a bearing XI79 and a bearing XII 80; the bevel gear IV 77 is arranged at one end of the right output shaft 76 through a flat key and a set screw and is in meshed transmission with the bevel gear II 68; the bearing XI79 and the bearing XII80 are respectively arranged at two ends of the right output shaft 76; the right output shaft 76 is rotatably connected with a bevel gear IV 77 through a bearing XI79 and a bearing XII 80; the right output shaft assembly 50 is fixedly connected with the gear box 44 through a bearing seat by bolts.

The gear box assembly 15 is fixedly connected with a rack side plate I19 and a rack side plate II 21 through bolts respectively.

The tail handle bar assembly 13 comprises a tail handle bar welding element 81, a left soil retaining plate combination 82 and a right soil retaining plate combination 83;

the tail handlebar welding part 81 comprises a tail handlebar 84, a cross beam 85, an adjusting plate I86, a connecting plate III 87, a connecting plate IV 88 and an adjusting plate II 89; the tail handle bar 84 is formed by bending a round steel pipe and is U-shaped; the adjusting plates I86 and II 89 are U-shaped bending plates, a large round hole and a plurality of small round holes distributed along the center of the large round hole are formed in the large ends of the adjusting plates I86 and II 89, and a large round hole aligned with the large round hole in the large end is formed in the small ends of the adjusting plates; the beam 85, the adjusting plate I86, the adjusting plate II 89, the connecting plate III 87 and the connecting plate IV 88 are fixedly connected with the tail handlebar 84 in a welding mode respectively; the tail handlebar assembly 13 is fixedly connected with the gear box assembly 15 through a connecting plate III 87 and a connecting plate IV 88 respectively by bolts.

The left soil blocking plate assembly 82 comprises a left soil blocking plate 90, a bent rod welding piece I91, a limiting seat I92 and a compression spring I93; the bent rod welding part I91 comprises a bent rod I94, a pin plate I95 and a pin I96, wherein the pin plate I95 is fixedly connected with the bent rod I94 in a welding part mode, and the pin I96 is fixedly connected with the pin plate I95 in a welding part mode; the left soil retaining plate 90 and the limiting seat I92 are fixedly connected with a bent rod welding piece I91 through bolts respectively; and the compression spring I93 is sleeved on the bent rod welding part I91.

The left soil retaining plate assembly 82 is rotatably connected with an adjusting plate I86; two ends of the compression spring I93 are respectively propped against the end face of the limiting seat I92 and the large end face of the adjusting plate I86; the pin I96 is inserted into a small round hole on a larger bending surface of the adjusting plate I86 and cannot move under the action of the compression spring I93.

The right soil blocking plate combination 83 comprises a right soil blocking plate 97, a bent rod welding piece II 98, a limiting seat II 99 and a compression spring II 100; the bent rod welding part II 98 comprises a bent rod II 101, a pin plate II 102 and a pin II 103, wherein the pin plate II 102 is fixedly connected with the bent rod II 101 in a welding part mode, and the pin II 103 is fixedly connected with the pin plate II 102 in a welding part mode; the right soil baffle 97 and the limiting seat II 99 are respectively fixedly connected with a bent rod welding piece II 98 through bolts; and the compression spring II 100 is sleeved on the bent rod welding part II 98.

The right soil blocking plate combination 83 is rotatably connected with an adjusting plate II 89; two ends of the compression spring II 100 are respectively propped against the end face of the limiting seat II 99 and the large end face of the adjusting plate II 89; and the pin II 103 is inserted into a small round hole on a larger bending surface of the adjusting plate II 89 and cannot move under the action of the compression spring II 100.

The tail handlebar assembly 13 is fixedly connected with the gearbox assembly 15 through a connecting plate III 87 and a connecting plate IV 88 respectively by bolts.

The intermediate shaft assembly I8 comprises an intermediate shaft I104, a belt pulley I105, an intermediate shaft bearing seat I106, a bearing XIII107, an intermediate shaft bearing seat II 108, a bearing XIV109 and a chain wheel I110; the belt pulley I105 and the chain wheel I110 are respectively installed at two ends of the intermediate shaft I104 through a flat key and a set screw; the bearing XIII107 and the bearing XIV109 are respectively arranged at two ends of the intermediate shaft I104 and are positioned on the inner sides of the belt pulley I105 and the chain wheel I110; the middle shaft I104 is rotationally connected with the rack side plate I19 and the rack side plate II 21 through a middle shaft bearing seat I106 and a middle shaft bearing seat II 108; the belt pulley I105 is connected with the output belt pulley 3 in a hanging mode through a triangular belt I5; the chain wheel I110 is hung with the input chain wheel 55 of the gearbox through a chain I17.

The intermediate shaft assembly II10 comprises an intermediate shaft II 111, a belt pulley II 112, an intermediate shaft bearing seat III 113, a bearing XV114, an intermediate shaft bearing seat IV115, a bearing XVI116 and a chain wheel II 117; the belt pulley II 112 and the chain wheel II 117 are respectively arranged at two ends of the intermediate shaft II 111 through flat keys and set screws; the bearings XV114 and XVI116 are respectively arranged at two ends of the intermediate shaft II 111 and are positioned at the inner sides of the belt pulley II 112 and the chain wheel II 117; the middle shaft II 111 is rotationally connected with the rack side plate I19 and the rack side plate II 21 through a middle shaft bearing seat III 113 and a middle shaft bearing seat IV 115; the belt pulley II 112 is connected with the output belt pulley 3 in a hanging manner through a triangular belt II 9; the chain wheel II 117 is hung with the land wheel input chain wheel 39 through a chain II 18.

The left soil throwing wheel assembly 12 comprises a left cutter head 118 and a left soil throwing blade 119; the left cutter head 118 is formed by welding a disc plate and a plurality of cutter seats uniformly distributed on the circumference of the disc plate, and each cutter seat is fixedly connected with a left soil throwing blade 119 through a bolt; the left soil throwing wheel assembly 12 is fixedly connected with the left output shaft 71 of the gear box through connecting holes uniformly distributed on the circumference of the left cutter head 118 by bolts and rotates along with the connecting holes.

The right soil throwing wheel assembly 16 comprises a right cutter disc 120 and a right soil throwing blade 121; the right cutter head 120 is formed by welding a disc plate and a plurality of cutter seats uniformly distributed on the circumference of the disc plate, and each cutter seat is fixedly connected with a right soil throwing blade 121 through a bolt; the right soil throwing wheel assembly 16 is fixedly connected with the right output shaft 76 of the gear box through connecting holes uniformly distributed on the circumference of the right cutter head 120 by bolts and rotates along with the connecting holes.

The utility model discloses overall structure is made for metal material.

The working principle of the ridge bed footpath machine is as follows:

1) when the traveling system works, the engine 2 is started firstly, the front operating lever I27 is pulled, and the front operating lever I is fixed through a bayonet on the front gear shift plate 26. At this time, the tension pulley i 34 on the front operating lever i 27 tightens the v-belt i 5 hung on the output pulley 3 and the pulley i 105. The triangular belt I5 transmits the power output by the engine 2 to the belt pulley I105, and then the ground wheel 37 is driven to run by the chain wheel I110 and the chain I17 which work coaxially with the belt pulley I105, so that the machine can walk on the ground.

2) When the excavating system works, the front operating rod II 28 is pulled after the engine is started and is fixed through the bayonet on the front gear shift board 26. At this time, the tension pulley II 35 on the front operating lever II 28 tightens the V-belt II 9 hung on the output pulley 3 and the pulley I105. The V-belt I5 transmits the power output by the engine 2 to the belt pulley II 112, and then drives the gearbox input shaft 52 and the gear shifting external gear 54 to rotate through the chain wheel II 117 and the chain II 18 which work coaxially with the belt pulley II 112.

The shift fork shaft 58 is pushed to push the external shift gear 54 into the internal shift gear 53 via the shift fork 59, so that the internal and external gears mesh with each other. The internal gear 53 will now rotate with the gearbox input shaft 52 and drive the shafts in the gearbox assembly 15 in a rotational movement.

The power is output after speed change and direction change through the gear box assembly 15, and respectively drives the left soil throwing wheel assembly 12 and the right soil throwing wheel assembly 16 to rotate: and (4) rotating and crushing the soil blocks, and throwing the crushed soil to the surfaces of the ridge beds at two sides.

3) And the distance of throwing soil can be adjusted by adjusting the angles of the left soil retaining plate 90 and the right soil retaining plate 97.

Claims

1. A bed pavement machine is characterized in that: the soil throwing machine comprises a rack (1), an engine (2), an output belt pulley (3), a head handlebar assembly (4), a triangular belt I (5), a tension spring I (6), a tension spring II (7), an intermediate shaft assembly I (8), a triangular belt II (9), an intermediate shaft assembly II (10), a land wheel assembly (11), a left soil throwing wheel assembly (12), a tail handlebar assembly (13), a control assembly (14), a gear box assembly (15), a right soil throwing wheel assembly (16), a chain I (17) and a chain II (18);

a rack side plate I (19) and a rack side plate II (21) which are symmetrically arranged are arranged on two sides of the rack (1), and an engine seat plate (20) is arranged on the upper part of the rack (1); the engine (2) is fixedly connected with an engine base plate (20) through bolts;

a belt pulley I (105) is fixedly installed at one end of an intermediate shaft I (104) of the intermediate shaft component I (8), a chain wheel I (110) is fixedly installed at the other end of the intermediate shaft I (104), and two ends of the intermediate shaft I (104) are respectively connected with a rack side plate I (19) and a rack side plate II (21) through bearings;

a belt pulley II (112) is fixedly mounted at one end of an intermediate shaft II (111) of the intermediate shaft assembly II (10), a chain wheel II (117) is fixedly mounted at one end of the intermediate shaft II (111), and two ends of the intermediate shaft II (111) are respectively connected with a rack side plate I (19) and a rack side plate II (21) through bearings;

the output belt pulley (3) is of a double-groove cone pulley type structure, the output belt pulley (3) is fixedly connected with an output shaft of the engine (2) through a flat key, the output belt pulley (3) is connected with a belt pulley I (105) through a triangular belt I (5), and the output belt pulley (3) is connected with a belt pulley II (112) through a triangular belt II (9);

the chain wheel I (110) is connected with a gear box input chain wheel (55) of the gear box assembly (15) through a chain I (17);

the chain wheel II (117) is connected with a ground wheel input chain wheel (39) of the ground wheel assembly (11) through a chain II (18);

the input chain wheel (55) of the gear box is fixedly connected with one end of the input shaft (52) of the gear box through a flat key and a jackscrew; a gear shifting internal gear (53) is arranged on the gear box input shaft (52); the middle part of the gearbox input shaft (52) is provided with an external gear shifting gear (54), the external gear shifting gear (54) is meshed with a spline on the gearbox input shaft (52) and slides on the gearbox input shaft (52), and the external gear shifting gear (54) is intermittently connected with an internal gear shifting gear (53);

the control component (14) comprises a front gear plate (26), a front control lever I (27), a front control lever II (28), a pull rod I (29), a pull rod II (30), a rear gear plate (31), a rear control lever I (32), a rear control lever II (33), a tensioning wheel I (34) and a tensioning wheel II (35);

the front gear plate (26) is an inverted L-shaped bent plate, two long holes are formed in an upper flat plate of the front gear plate (26), one ends of the two long holes are respectively provided with a bayonet protruding to one side, and a side wall plate of the front gear plate (26) is fixedly connected with the engine (2) through bolts; the upper part of the front operating lever I (27) penetrates through a long hole of the front gear plate (26) and is clamped with a bayonet of the long hole, the middle protruding part of the front operating lever I (27) is rotatably connected with a tension wheel I (34), the lower part of the front operating lever I (27) is rotatably connected with a side wall plate of the front gear plate (26) through a pin shaft, and the lower end of the front operating lever I (27) is connected with the rack (1) through a tension spring I (6); the upper part of the front operating lever II (28) penetrates through the other long hole of the front gear plate (26) and is clamped with a bayonet of the long hole, the middle protruding part of the front operating lever II (28) is rotatably connected with a tensioning wheel II (35), the lower part of the front operating lever II (28) is rotatably connected with a side wall plate of the front gear plate (26) through a pin shaft, and the lower end of the front operating lever II (28) is connected with the rack (1) through a tension spring II (7);

the rear gear plate (31) is an inverted L-shaped bent plate, an upper flat plate of the rear gear plate (31) is provided with two long holes, one end of each of the two long holes is provided with a bayonet protruding to one side, and the rear gear plate (31) is fixedly connected with the gear box assembly (15) through a bolt; the lower end of the rear operating lever I (32) is rotatably connected with a side wall plate of the rear gear plate (31) through a pin shaft, and the upper part of the rear operating lever I (32) penetrates through a long hole of the rear gear plate (31) and is clamped with a bayonet of the long hole; the lower end of the rear operating lever II (33) is rotatably connected with a side wall plate of the rear gear plate (31) through a pin shaft, and the upper part of the rear operating lever II (33) penetrates through another long hole of the rear gear plate (31) and is clamped with a bayonet of the long hole;

two ends of the pull rod I (29) are respectively and rotatably connected with the front operating lever I (27) and the rear operating lever I (32) through pin shafts; two ends of the pull rod II (30) are respectively and rotatably connected with the front operating lever II (28) and the rear operating lever II (33) through pin shafts;

the head handlebar assembly (4) is fixedly connected with the rack side plate I (19) and the rack side plate II (21) through bolts respectively;

the tail handlebar assembly (13) is fixedly connected with the gear box assembly (15) through a connecting plate III (87) and a connecting plate IV (88) respectively; the gearbox assembly (15) is fixedly connected with the rack side plate I (19) and the rack side plate II (21) through bolts respectively;

two ends of the land wheel assembly (11) are fixedly connected with a rack side plate I (19) and a rack side plate II (21) through bearing seats respectively;

the left soil throwing wheel assembly (12) comprises a left cutter head (118) and a left soil throwing blade (119); the left cutter head (118) is formed by welding a disc plate and cutter seats uniformly distributed along the circumferential direction of the disc plate, connecting holes are uniformly formed in the disc plate along the circumferential direction, and the left cutter head (118) is fixedly connected with a left gear box output shaft (71) of the gear box assembly (15) through the connecting holes and bolts; the cutter holder is fixedly connected with a left soil throwing blade (119) through a bolt;

the right soil throwing wheel assembly (16) comprises a right cutter head (120) and a right soil throwing blade (121); the right cutter head (120) is formed by welding a disc plate and cutter seats uniformly distributed along the circumferential direction of the disc plate, connecting holes are uniformly formed in the circumferential direction of the disc plate, and the right cutter head (120) is fixedly connected with a right gear box output shaft (76) of the gear box assembly (15) through the connecting holes and bolts; the tool apron is fixedly connected with a right soil throwing blade (121) through a bolt.

2. A bed walker as claimed in claim 1 wherein: the frame (1) comprises a frame side plate I (19), an engine seat plate (20), a frame side plate II (21) and a connecting column (22); the engine base plate (20) is fixedly connected with the rack side plate I (19) and the rack side plate II (21) respectively in a welding mode; the number of the connecting columns (22) is more than two, and two ends of each connecting column (22) are fixedly connected with the rack side plate I (19) and the rack side plate II (21) through bolts respectively to form a frame structure.

3. A bed walker as claimed in claim 1 wherein: the head handlebar assembly (4) comprises a head handlebar (23), a connecting plate I (24) and a connecting plate II (25); the head handlebar (23) is formed by bending a round steel pipe; the connecting plate I (24) and the connecting plate II (25) are fixedly connected with the head handlebar (23) in a welding mode respectively, and the connecting plate I (24) and the connecting plate II (25) are fixedly connected with the rack side plate I (19) and the rack side plate II (21) through bolts respectively.

4. A bed walker as claimed in claim 1 wherein: the land wheel assembly (11) comprises a land wheel shaft (36), a land wheel (37), a connecting block (38), a land wheel input chain wheel (39), a bearing I (40), a bearing seat I (41), a bearing II (42) and a bearing seat II (43), one end of the land wheel assembly (11) is fixedly connected with a rack side plate I (19) through the bearing seat I (41), and the other end of the land wheel assembly (11) is fixedly connected with a rack side plate II (21) through the bearing seat II (43); the connecting block (38) is fixedly connected to the middle part of the land wheel shaft (36) through a flat key and a set screw, and the connecting block (38) is fixedly connected with a steel ring on the land wheel (37) through a bolt; the bearing I (40) and the bearing II (42) are respectively positioned at two ends of the land wheel shaft (36), and the bearing I (40) is rotationally connected with the bearing seat I (41); the bearing II (42) is rotationally connected with the bearing seat II (43); the land wheel input chain wheel (39) is fixedly connected with the land wheel shaft (36) through a flat key.

5. A bed walker as claimed in claim 1 wherein: the gearbox assembly (15) comprises a gearbox body (44), a gearbox input shaft combination (45), a shifting fork shaft combination (46), a gearbox intermediate shaft combination (47), a gear shaft combination (48), a left output shaft combination (49), a right output shaft combination (50) and a chain III (51);

the gearbox input shaft combination (45) comprises a gearbox input shaft (52), a gear shifting inner gear (53), a gear shifting outer gear (54), a gearbox input chain wheel (55), a bearing III (56) and a bearing IV (57), and the gearbox input shaft combination (45) is rotationally connected with a gearbox body (44) through the bearing III (56) and the bearing IV (57); wherein, the input chain wheel (55) of the gear box is fixedly connected with one end of the input shaft (52) of the gear box through a flat key and a jackscrew; the bearing III (56) is arranged on the input shaft (52) of the gearbox, and the bearing III (56) is positioned on the inner side of the input chain wheel (55) of the gearbox; the bearing IV (57) is arranged at the other end of the input shaft (52) of the gear box; the gear shifting internal gear (53) is arranged on the gear box input shaft (52), and the gear shifting internal gear (53) rotates on the gear box input shaft (52);

the shifting fork shaft combination (46) comprises a shifting fork shaft (58) and a shifting fork sheet (59); the shifting fork piece (59) is fixedly connected with the shifting fork shaft (58) through a set screw, and the shifting fork piece (59) is connected with the gear shifting external gear (54); both ends of the shifting fork shaft (58) are arranged in a through hole on the gear box body (44), and the shifting fork shaft (58) moves along the axial direction of the through hole;

the gearbox intermediate shaft combination (47) comprises a gearbox intermediate shaft (60), a large gear (61), a small chain wheel (62), a bearing V (63) and a bearing VI (64), and the gearbox intermediate shaft combination (47) is rotationally connected with the gearbox body (44) through the bearing V (63) and the bearing VI (64); the large gear (61) is fixedly connected to the intermediate shaft through a flat key, and the large gear (61) is meshed and connected with an output gear on the gear shifting internal gear (53); the bearing V (63) and the bearing VI (64) are respectively arranged at two ends of a middle shaft (60) of the gear box;

the gear shaft combination (48) comprises a bevel gear I (65), a gear shaft (66), a large chain wheel (67), a bevel gear II (68), a bearing VII (69) and a bearing VIII (70), and the gear shaft combination (48) is rotationally connected with the gear box body (44) through the bearing VII (69) and the bearing VIII (70); the bevel gear I (65) and the bevel gear II (68) are respectively arranged at the end positions of two ends of the gear shaft (66) through a flat key and a set screw; the bearing VII (69) and the bearing VIII (70) are respectively arranged at two ends of the gear shaft (66), the bearing VII (69) is positioned at the inner side of the bevel gear I (65), and the bearing VIII (70) is positioned at the inner side of the bevel gear II (68); the large chain wheel (67) is fixedly connected with the middle part of the gear shaft (66) through a flat key, and the large chain wheel (67) is connected with the small chain wheel (62) in the middle shaft combination through a chain III (51);

the left output shaft assembly (49) comprises a left output shaft (71), a left output bearing seat (72), a bearing IX (73), a bearing X (74) and a bevel gear III (75), and the left output shaft assembly (49) is fixedly connected with the gear box body (44) through the bearing seat; the bevel gear III (75) is mounted at one end of the left output shaft (71) through a flat key and a set screw, and the bevel gear III (75) is meshed and connected with the bevel gear I (65); the bearing IX (73) and the bearing X (74) are respectively arranged at two ends of the left output shaft (71); the left output shaft (71) is rotationally connected with a left output bearing seat (72) through a bearing IX (73) and a bearing X (74);

the right output shaft assembly (50) comprises a right output shaft (76), a bevel gear IV (77), a right output bearing seat (78), a bearing XI (79) and a bearing XII (80), and the right output shaft assembly (50) is fixedly connected with the gear box body (44) through the bearing seat; the bevel gear IV (77) is arranged at one end of the right output shaft (76) through a flat key and a set screw, and the bevel gear IV (77) is meshed and connected with the bevel gear II (68); the bearing XI (79) and the bearing XII (80) are respectively arranged at two ends of the right output shaft (76); the right output shaft (76) is rotationally connected with a bevel gear IV (77) through a bearing XI (79) and a bearing XII (80).

6. A bed walker as claimed in claim 1 wherein: the tail handle assembly (13) comprises a tail handle welding part (81), a left soil retaining plate combination (82) and a right soil retaining plate combination (83), and the tail handle assembly (13) is fixedly connected with the gear box assembly (15) through a connecting plate III (87) and a connecting plate IV (88) respectively; the tail handlebar welding part (81) comprises a tail handlebar (84), a cross beam (85), an adjusting plate I (86), a connecting plate III (87), a connecting plate IV (88) and an adjusting plate II (89); the tail handle bar (84) is formed by bending a round steel pipe; the adjusting plate I (86) and the adjusting plate II (89) are symmetrically arranged, the adjusting plate I (86) and the adjusting plate II (89) are bending plates with two ends bent towards the same side, one end of each bending plate is large in bending surface, a large round hole and small round holes distributed along the center of the large round hole in a circumferential mode are formed in the bending surface, the other end of each bending plate is small in bending surface, the bending surface is provided with the large round hole, and the large round hole is coaxial with the large round hole in the large bending surface; the cross beam (85), the adjusting plate I (86), the adjusting plate II (89), the connecting plate III (87) and the connecting plate IV (88) are fixedly connected with the tail handlebar (84) respectively in a welding mode;

the left retaining plate combination (82) comprises a left retaining plate (90), a bent rod welding piece I (91), a limiting seat I (92) and a compression spring I (93), and the left retaining plate combination (82) is rotatably connected with an adjusting plate I (86); the bent rod welding part I (91) comprises a bent rod I (94), a pin plate I (95) and a pin I (96); one end of the pin plate I (95) is sleeved outside the bent rod I (94) and is fixedly connected with the bent rod I (94), and a pin I (96) is welded on the end face of the other end of the pin plate I (95); the left soil retaining plate (90) and the limiting seat I (92) are fixedly connected with the bent rod welding piece I (91) through bolts respectively; the compression spring I (93) is sleeved on the bent rod welding part I (91), one end of the compression spring I (93) is connected with the limiting seat I (92), and the other end of the compression spring I (93) is connected with a larger bending surface of the adjusting plate I (86); the pin I (96) is inserted into a small circular hole of the adjusting plate I (86);

the right soil blocking plate combination (83) comprises a right soil blocking plate (97), a bent rod welding piece II (98), a limiting seat II (99) and a compression spring II (100), and the right soil blocking plate combination (83) is rotatably connected with an adjusting plate II (89); the bent rod welding part II (98) comprises a bent rod II (101), a pin plate II (102) and a pin II (103); one end of the pin plate II (102) is sleeved outside the bent rod II (101) and is fixedly connected with the bent rod II (101), and a pin I (96) is welded on the end face of the other end of the pin plate I (95); the right soil baffle plate (97) and the limiting seat II (99) are fixedly connected with a bent rod welding piece II (98) through bolts respectively; the compression spring II (100) is sleeved on the bent rod welding part II (98), one end of the compression spring II (100) is connected with the limiting seat II (99), and the other end of the compression spring II (100) is connected with the larger bending surface of the adjusting plate II (89); and the pin II (103) is inserted into a small circular hole of the adjusting plate II (89).

7. A bed walker as claimed in claim 1 wherein: the intermediate shaft component I (8) comprises an intermediate shaft I (104), a belt pulley I (105), an intermediate shaft bearing block I (106), a bearing XIII (107), an intermediate shaft bearing block II (108), a bearing XIV (109) and a chain wheel I (110); the belt pulley I (105) and the chain wheel I (110) are respectively installed at the end heads of the two ends of the intermediate shaft I (104) through a flat key and a set screw; the bearing XIII (107) and the bearing XIV (109) are respectively arranged at two ends of the intermediate shaft I (104), the bearing XIII (107) is positioned on the inner side of the belt pulley I (105), and the bearing XIV (109) is positioned on the inner side of the chain wheel I (110); one end of the intermediate shaft I (104) is rotatably connected with the rack side plate I (19) through an intermediate shaft bearing seat I (106), and one end of the intermediate shaft I (104) is rotatably connected with the rack side plate II (21) through an intermediate shaft bearing seat II (108); the belt pulley I (105) is connected with the output belt pulley (3) through a triangular belt I (5); the chain wheel I (110) is connected with the input chain wheel (55) of the gear box through a chain I (17).

8. A bed walker as claimed in claim 1 wherein: the intermediate shaft assembly II (10) comprises an intermediate shaft II (111), a belt pulley II (112), an intermediate shaft bearing block III (113), a bearing XV (114), an intermediate shaft bearing block IV (115), a bearing XVI (116) and a chain wheel II (117); the belt pulley II (112) and the chain wheel II (117) are respectively arranged at the two end heads of the intermediate shaft II (111) through flat keys and set screws; the bearings XV (114) and XVI (116) are respectively arranged at two ends of the intermediate shaft II (111), the bearings XV (114) are positioned at the inner side of the belt pulley II (112), and the bearings XVI (116) are positioned at the inner side of the chain wheel II (117); one end of the intermediate shaft II (111) is rotationally connected with the rack side plate I (19) through an intermediate shaft bearing seat III (113), and the other end of the intermediate shaft II (111) is rotationally connected with the rack side plate II (21) through an intermediate shaft bearing seat IV (115); the belt pulley II (112) is connected with the output belt pulley (3) through a triangular belt II (9); and the chain wheel II (117) is connected with the ground wheel input chain wheel (39) through a chain II (18).