CN111492871A

CN111492871A - Combined soil layer inner film paving equipment with variable width

Info

Publication number: CN111492871A
Application number: CN202010299667.1A
Authority: CN
Inventors: 方绪龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-08-07

Abstract

The invention relates to the technical field of agricultural machinery, in particular to combined type soil layer inner film paving equipment with variable width. Agricultural production in mountainous and dry areas is limited by factors such as soil and water resources. The technical scheme of the invention is as follows: the left frame and the right frame are connected through a connecting rod, the traveling wheels and the compression rollers are respectively assembled at the lower parts of the frames, and the vibrating screen and the guide ramp are assembled at the upper parts of the left frame and the right frame through the front part and the rear part of the frame; the vibrating screen is formed by connecting a plurality of screen meshes, the guide ramp is formed by connecting a plurality of slideways, and the press roller is formed by connecting a plurality of sections of roller bodies; the rear parts of the left and right frames are provided with supports for hanging plastic films. This parts such as equipment frame, shale shaker, guide ramp all adopt integrated configuration, can set for the width according to the width in farmland and carry out equipment assembly, screen the crop growth layer soil of arable land, lay the plastic film below the soil layer of growing simultaneously, prevent that irrigation water from to deep seepage to solve partial area arable land and have the water source lack, the not good scheduling problem of arable land quality.

Description

Combined soil layer inner film paving equipment with variable width

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to combined type soil layer inner film paving equipment with variable width.

Background

The land resources in China are various in types and uneven in distribution, and the factors of climate conditions, ecological environments and land conditions in various regions are different, so that the land productivity difference in different regions is large, for example, agricultural production in mountainous regions, arid regions and other regions is greatly influenced by factors such as climate, soil and water resources, the problems of few cultivated land, more soil residues in the cultivated land, lack of irrigation water resources, dry climate and the like generally exist, most of water rapidly permeates into deep soil layers after irrigation, the water remained in a crop growth layer is not enough for crops to grow vigorously, the quantity of the land resources, the soil quality and the land production potential are poor, a lot of disadvantages are brought to agricultural planting, the varieties of crops which can be planted in the regions are limited, and most of the crops can only be planted and drought resistance is achieved by adopting a water-saving irrigation technology. In some regions, the farmland is tried to be treated and reformed, and the soil is screened to remove particles and stones which are not beneficial to the growth of crops, so that the leakage loss of water is reduced, and the land and water resources are fully utilized. Because the landforms of different regions are different, the conditions of farmland shapes, specifications, climates and the like are different, particularly, the cultivated land in a mountain area takes a plurality of small plots, the climate is arid, and because special agricultural implements with special purposes and effective treatment means are lacked, the treatment difficulty and cost are greatly increased, the purpose of large-area comprehensive treatment is difficult to realize, and the effects of water saving, improvement and the like are not obvious.

Disclosure of Invention

Aiming at the problems, the invention provides a combined soil layer inner film-paving device with variable width, which screens the soil of a crop growth layer of a cultivated land according to the shape and the size of the farmland and adjusts the operation width of the device, screens out large particles and stones, and lays a plastic film below the soil to separate the soil of the crop growth layer from deep soil so as to prevent irrigation water from leaking to the deep layer.

The purpose of the invention is realized by the following technical scheme:

a combined type soil layer inner film paving device with variable width comprises: the device comprises a left frame, a right frame, traveling wheels, two sections of end rollers, at least one section of middle roller, a vibrating screen, a guide ramp, a frame for supporting the vibrating screen and the guide ramp, a connecting rod for connecting and adjusting the distance between the left frame and the right frame, and a rear suspension arm;

the left frame and the right frame are detachably connected and fastened through a connecting rod; the front ends of the left frame and the right frame are respectively provided with a travelling wheel, and the outer sides of the rear sections of the left frame and the right frame are respectively symmetrically fixed with a shaft bracket;

the center of the outer end part of the end part roller is provided with a roller shaft, and two sections of end part rollers and at least one section of middle roller are detachably and coaxially connected to form a press roller; the compression roller is rotatably clamped and connected on the shaft brackets of the left frame and the right frame through a roller shaft;

the frame consists of a left frame body and a right frame body which are symmetrically arranged and are respectively fixed on the upper parts of the left frame and the right frame;

a rear cantilever is respectively fixed at the rear ends of the left frame and the right frame, the rear cantilever is provided with a support for hanging a plastic film, and the support is positioned behind the press roller;

the vibrating screen is formed by detachably and transversely connecting a plurality of screen meshes which are arranged in parallel, and the tail end of each screen mesh is provided with a slag outlet; the guide ramp is formed by detachably and transversely connecting a plurality of slide ways which are arranged in parallel;

the vibrating screen and the guide ramp are assembled on the machine frames on the left frame and the right frame in a slope shape with a high front part and a low rear part; the guide ramp is positioned below the vibrating screen, and the tail end of the guide ramp is positioned behind the support.

Furthermore, the connecting rod is a multi-section rod body structure which is connected and fastened with each other.

Furthermore, a soil leveling plate is assembled at the front part of the press roller; the soil leveling plate is formed by detachably connecting a plurality of sections of mutually connected plate bodies and is hung at the lower parts of the left frame and the right frame through supporting arms.

Furthermore, the rear part of the frame is provided with a chute for receiving and guiding slag, and the notch of the chute is positioned below the slag outlet of each screen of the vibrating screen; the sliding groove is formed by detachably connecting a plurality of sections of groove bodies which are mutually connected.

Furthermore, a soil scraping plate is arranged at the tail end of the rear cantilever and is positioned behind the tail end of the guide ramp; the scraper is composed of a plurality of sections of mutually connected plate bodies which are detachably connected.

Furthermore, at least one group of breakers for breaking hardened soil is assembled above the front section or the middle section of the screen of the vibrating screen, and each breaker comprises a rotating shaft and a plurality of groups of vibrating rods which are radially fixed on the rotating shaft; the rotary shaft of the crusher is formed by detachably connecting a plurality of sections of mutually connected shaft bodies, and two ends of the rotary shaft are respectively and rotatably connected with the machine frames on the left and right frames.

Further, the total number of end rollers and intermediate rollers of the compacting roller, the number of screens of the vibrating screen, the number of slides of the guide ramp are the same, and the transverse widths of the screens, the slides and the end rollers or the intermediate rollers which correspond to each other in the vertical direction are the same.

Furthermore, the end surfaces of the end roller and the middle roller are fixedly connected through a group of flanges, the flange structure consists of an annular flange A with bolt holes and a flange B with tooth-shaped notches at the inner edge, and the flange B is fixedly provided with connecting bolts matched with the bolt holes of the flange A;

two end faces of the middle roller are respectively fixed with a flange A and a flange B, and bolt holes of the flange A of the middle roller in the same section correspond to the notches of the flange B;

the inner ends of the two sections of end rollers in the axial direction are respectively fixed with a flange A and a flange B, and the outer end of the end roller fixed with the flange A is provided with a through hole corresponding to the bolt hole of the flange A.

Furthermore, the structure of the end part roller is formed by integrally connecting a cylindrical section roller body positioned on the inner side in the axial direction and a circular truncated cone section roller body positioned on the outer side in the axial direction.

Furthermore, a level meter for observing the left and right horizontal states of the frame is arranged on the left frame and/or the right frame.

The invention has the beneficial effects that:

the invention provides combined type soil layer internal film paving equipment with variable width, which is used for treating and optimizing cultivated soil layers in arid areas, mountain areas and other areas with poor cultivated land soil conditions and ecological environments. The device is used for screening farmland soil, screening out large particles and stones which are not beneficial to crop growth, and laying a layer of waterproof plastic film below the cultivation soil layer, so that the cultivation soil layer is separated from deep soil, irrigation water is prevented from leaking to the deep layer of the soil, the problem that areas such as arid areas and mountain areas lack irrigation water is solved, and meanwhile, the pollution of pesticide residues such as chemical fertilizers to underground water can be prevented. The frame, the vibrating screen, the guide ramp and other parts of the equipment are connected in a combined mode, the operation width can be adjusted and set according to the width of a farmland, the use is flexible and convenient, and the equipment is particularly suitable for comprehensively developing and utilizing land resources with small cultivated land quantity, different specifications and poor soil quality, optimizing the soil layer structure of a cultivated land planting area and improving the economic benefit and the ecological environment benefit brought by land utilization.

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a schematic view of a roller flange connection structure of the press roller of the invention;

FIG. 4 is a view showing the assembly of the press roll connection of the present invention;

FIG. 5 is a schematic structural view of example 2 of the present invention;

FIG. 6 is a schematic view showing the structure of a crusher in example 2 of the present invention.

Detailed Description

In the figure: 1-left frame, 2-frame, 3-shaft frame, 4-rear cantilever, 5-support, 6-road wheel, 7-soil leveling plate, 8-right frame, 9-connecting rod, 10-supporting arm, 11-press roller, 11 a-end roller, 11a 1-through hole, 11B-middle roller, 12-plastic film, 13-scraping plate, 14-vibrating screen, 14 a-screen mesh, 14B-slag outlet, 15-guiding ramp, 15 a-slideway, 16-chute, 17-flange, 17 a-flange A, 17a 1-bolt hole, 17B-flange B, 17B 1-notch, 18-roller shaft, 19-connecting bolt, 20-breaker, 20 a-rotating shaft and 20B-vibrating rod.

Example 1

As can be seen from fig. 1 to 4, the technical scheme of the invention comprises a left frame 1, a right frame 8, a traveling wheel 6, two sections of end rollers 11a, at least one section of middle roller 11b, a vibrating screen 14, a guide ramp 15, a frame 2 for supporting the vibrating screen and the guide ramp, a connecting rod 9 for connecting and adjusting the distance between the left frame and the right frame, and a rear suspension arm 4.

The left frame 1 and the right frame 8 are detachably connected and fastened through a connecting rod 9; the connecting rod 9 is provided with a plurality of groups of adjusting holes for connecting the left frame and the right frame so as to meet the requirement of adjusting the space between the frames; the frame 1 is composed of a left part and a right part which are arranged in bilateral symmetry and are mutually independent, and two frame bodies of the frame are respectively fixed on the outer edges of the upper parts of the left frame and the right frame.

The front ends of the left frame 1 and the right frame 8 are respectively provided with a travelling wheel 6 through wheel frames; the outer sides of the rear sections of the left frame 1 and the right frame 8 are respectively and symmetrically fixedly connected with a shaft bracket 3;

a roll shaft 18 is arranged in the center of the outer end part of the end part roller 11a, two sections of the end part rollers are arranged at the left and the right, and are coaxial with at least one section of the middle roller 11c and are detachably and fixedly connected to form a press roller 11; the press roller 11 is rotatably clamped and installed on the shaft bracket 3 of the left and right frames through a roller shaft 18.

The rear ends of the left frame and the right frame are respectively fixedly connected with a rear cantilever 4, the two rear cantilevers 4 are symmetrically arranged, a support 5 used for hanging and installing a plastic film in a package is arranged on the rear cantilever 4, and the support 5 is positioned behind the compression roller 11.

The vibrating screen 14 is formed by transversely arranging a plurality of screen meshes 14a in parallel, the side frames of the adjacent screen meshes 14a are detachably connected and fastened through bolt assemblies, and the frame at the tail end (namely the rear end of the screen mesh) of each screen mesh 14a is provided with a slag outlet 14 b; the guide ramp 15 is formed by transversely detachably connecting a plurality of slide ways 15a which are arranged in parallel through a bolt assembly;

the vibrating screen 14 and the guide ramp 15 are arranged in a slope shape with a high front part and a low rear part, and the vibrating screen and the guide ramp are respectively connected and assembled with two parts of frame bodies on a left frame and a right frame; the guide ramp 15 is located below the vibrating screen 14, and the end of the guide ramp 15 is located behind the support 5 (i.e. the lower end of the guide ramp 15 is located behind the plastic film roll).

The vibration exciter of the vibrating screen 4 can be powered by power equipment such as a tractor for dragging the vibrating screen to move, and a small diesel engine can be arranged on a frame of the vibrating screen 4 to drive the vibrating screen to run.

Further, the number of screens 14a of the vibrating screen 14, the number of slideways 15a of the guide ramp 15, and the number of rollers of the press roll 11 (i.e., the total number of both end rollers and the middle roller) are the same; the screen 14a, the slide way 15a and the end roller 11a or the middle roller 11b which are vertically corresponding form a group of screen vibration units, and the screen, the slide way and the roller (the end roller or the middle roller) in each screen vibration unit have the same transverse width. The design can adopt the combination of a lateral screen vibration unit with an end roller and one or more groups of screen vibration units provided with middle rollers according to the width of cultivated land during the use process, and the screen vibration units are connected with a left frame, a right frame and a rack for equipment assembly so as to set the width of the equipment. Narrower fields can also be used directly with a combination of two sets of side screen vibratory units equipped with end drums.

Furthermore, the connecting rod 9 is composed of a plurality of detachable rod bodies which are connected and fastened with each other, and is adjusted according to the number and the width of the assembled screen vibration units and connected with the left frame and the right frame.

Preferably, the end rollers 11a and the middle rollers 11B are hollow cylinders, the ends of the end rollers and the middle rollers are connected and fixed by a set of flanges 17, the structure of the flanges 17 is composed of an annular flange a 17a with bolt holes 17A1 and a flange B17B with tooth-shaped notches 17B1 at the inner edge, and the flange B17B is fixedly connected with connecting bolts 19 matched with the bolt holes 17A1 of the flange a 17a by welding.

The two ports of the middle roller 11B are respectively fixed with a flange A17 a and a flange B17B, and the bolt holes 17A1 of the flange A17 a on the same middle roller correspond to the notches 17B1 of the flange B17B in position, the structural design is convenient for the mutual connection operation between rollers, because the notches 17B1 of the flange B are opposite to the bolt holes 17A1 of the flange A, when two adjacent roller flanges are connected, a socket wrench can extend into the roller from the notch of one roller flange B to fasten nuts, and the position relationship of the bolt holes of the flange A and the notches of the flange B is shown in figures 3-4;

the inner ends of the two end roller sections 11a are respectively fixed with a flange A17 a and a flange B17B, and the outer end (or the outer end face) of the end roller section fixed with the flange A is provided with a through hole 11A1 corresponding to the bolt hole 17A1 of the flange A, so as to extend into a socket wrench to carry out roller assembly operation.

As another preferred scheme, the structure of the end roller 11a is formed by integrally connecting a cylindrical section roller body located on the axial inner side of the roller and a circular truncated cone section roller body located on the axial outer side of the roller, namely, the large-diameter end of the circular truncated cone section roller body is connected with the edge of the end face of the cylindrical section roller body; according to the scheme, the through hole 11a1 of the end roller with the flange A can be formed in the side wall (circular truncated cone side face) of the circular truncated cone section roller body or the end face of the small-diameter end of the circular truncated cone section according to the specification of the roller body.

Furthermore, a soil leveling plate 7 is assembled at the front part of the press roller 11, the soil leveling plate 7 is installed at the lower parts of the left and right frames behind the travelling wheels 6 in a hoisting manner through support arms 10, and the excavated cultivated land is primarily leveled in the travelling process of the equipment; the soil leveling plate 7 is formed by detachably connecting a plurality of sections of mutually connected plate bodies, the number of the plate bodies is determined according to the assembling width of the film paving equipment, and the transverse width of the combined soil leveling plate 7 is equal to the width of the equipment.

The rear part of the frame 2 is transversely connected and assembled with a chute 16 for receiving and guiding slag, and the notch of the chute 16 is positioned below the slag outlet 14b of each screen 14a of the vibrating screen; the chute 16 is formed by detachably connecting a plurality of sections of chute bodies which are mutually connected end to end, and the length of the chute 16 after combination is larger than the assembly width of the equipment, so that large-particle soil residues and stones which are screened out are guided out of the field.

The tail end of the rear cantilever 4 is provided with a scraper 13, and the scraper 13 is transversely arranged behind the tail end (namely the lower end) of the guide ramp 15; the scraper 13 is composed of a plurality of sections of mutually connected connecting plate bodies which are detachably connected, the number of the plate bodies of the scraper is determined according to the assembly width of the film paving equipment, so that the transverse width of the combined scraper 13 is the same as the overall assembly width of the equipment, and the scraper is used for leveling the soil which slides down along the guide ramp after screening.

And a level gauge is arranged on the left frame 1 and/or the right frame 8 and is used for observing the left and right horizontal postures of the frame.

When the equipment is used for optimizing a field, firstly, the width of the equipment is set according to the width of cultivated land for assembling the screening and vibrating unit, then the cultivated land is dug downwards to the required depth by utilizing excavating equipment, the equipment is placed in a dug pit, then a rolled plastic film 12 is installed on a support 5 of a rear cantilever, the free end of the plastic film is pulled downwards and placed on the edge of the pit to be firmly pressed and fixed; starting the vibrating screen 14, shoveling dug pit soil onto the vibrating screen by using excavating equipment for vibrating, rolling screened large particles or stones to the lower end of the screen along the screen, falling into the chute 16 through a slag outlet 14b at the tail end (namely the lower end) of the screen 14a, and guiding the large particles or stones to the outside of the pit for centralized treatment or transportation; the screened fine soil falls into a guide ramp below the screen mesh and slides on the plastic film.

Along with the slow advance of this equipment, the soil flattening board 7 carries out preliminary levelling to the hole bottom, again through the compacting roller compaction hole bottom soil to mould membrane release, lay and soil screening back earthing in step, and at last through scraping the fine soil of backfill after the scraper 13 is driven the level of the soil after the screening, realized once accomplishing from soil screening shake, shop's membrane, backfill, to the level and smooth of earthing. When the equipment moves forward, the left and right horizontal postures of the equipment can be observed through the level gauge, and the bottom surface of the pit is trimmed in a small scale.

For small-area plots, soil at one end of the plot can be excavated, the excavated area is larger than the occupied area of traction equipment such as the equipment and a tractor, the equipment is placed in a pit, and then excavation, screening vibration and backfilling are carried out synchronously.

In this embodiment, because both ends (end rollers 11 a) of the roller body of the compacting roller 11 are in the shape of a circular truncated cone, the cross section of the ground pit after being compacted is in a trapezoid shape with a wide top and a narrow bottom, so that the edge of the plastic film laid along the way leans against the pit wall, and the two sides of the plastic film are prevented from falling.

The width of the device can be set along with the cultivated land, the device is convenient to assemble, the plastic film is laid below the crop growth soil layer of the cultivated land, the soil of the crop growth layer is separated from the soil below, the irrigation water is prevented from leaking to the deep soil layer, the problems of poor soil quality, lack of irrigation water and the like in arid areas, mountainous areas and the like are solved, and meanwhile, the pollution of chemical fertilizers and the like to underground water is avoided as much as possible.

In addition, in order to prevent sudden large amount of precipitation, overflow pipes for preventing waterlogging are arranged on the plastic film at intervals in the plastic film laying process, namely the outer wall of a lower pipe opening of each overflow pipe is bonded with the plastic film, an overflow pipeline is communicated with the ground below the plastic film, and once accumulated water exceeds the height of the water outlet of each overflow pipe, redundant water flows into the ground through the overflow pipes.

The materials and parts used by the invention are all conventional products publicly sold in the market.

Example 2

As can be seen from fig. 5 to 6, the present embodiment is different from embodiment 1 in that, in order to prevent the soil agglomerates from blocking the screen, the present apparatus is equipped with at least one set of breakers 20 for breaking hardened soil, and the breakers 20 include a rotating shaft 20a and a plurality of sets of rapping bars 20b radially fixed on the rotating shaft; the two ends of the rotating shaft 20a are respectively rotatably connected with the two parts of the frame bodies on the left frame and the right frame, the knappers 20 are transversely and horizontally arranged above the front section or the middle section of the vibrating screen, and the minimum gap between the free end of the vibrating rod 20b and the screen surface of the screen after the rotating shaft 20a rotates and the number of the knappers are determined according to the local soil condition.

The rotating shaft 20a of the knapper is formed by detachably connecting a plurality of sections of mutually connected shaft bodies, the number of the sections of the shaft bodies is determined according to the assembling width of the film paving equipment for assembling, and the length of the shaft bodies can be conveniently adjusted to be matched with the screen vibration unit. The rotating shaft 20a can be connected with a power device of a tractor for dragging the equipment to move, or driven by a small diesel engine arranged on a frame.

In actual operation, fall into the high-end field soil of shale shaker, less soil particles are passed between by the rapping bar 20b, and the bold soil that hardens is intercepted and is gathered at the shale shaker anterior segment by the cracker, and pivot 20a is rotatory, rapping bar 20b beats the soil piece in succession around the axle swing and smashes, and the little soil piece after the breakage is passed through between rapping bar 20b and rapping bar free end and wire side.

Other technical features of this embodiment are the same as those of embodiment 1.

Finally, it should be noted that: the above embodiments are intended to illustrate rather than limit the technical solution of the present invention, and those skilled in the art should modify the embodiments or substitute part of the technical features without departing from the spirit of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims.

Claims

1. The utility model provides a membrane equipment is spread in combination formula soil layer of variable width which characterized in that: the device comprises a left frame (1), a right frame (8), a traveling wheel (6), two sections of end rollers (11 a), at least one section of middle roller (11 b), a vibrating screen (14), a guide ramp (15), a frame (2) for supporting the vibrating screen and the guide ramp, a connecting rod (9) for connecting and adjusting the distance between the left frame and the right frame, and a rear suspension arm (4);

the left frame (1) and the right frame (8) are detachably connected and fastened through a connecting rod (9); the front ends of the left frame (1) and the right frame (8) are respectively provided with a travelling wheel (6), and the outer sides of the rear sections of the left frame (1) and the right frame (8) are respectively and symmetrically fixed with a shaft bracket (3);

a roll shaft (18) is arranged in the center of the outer end part of the end part roller (11 a), and two sections of end part rollers and at least one section of middle roller (11 b) are detachably and coaxially connected to form a press roller (11); the compression roller (11) is rotatably clamped and connected to the shaft brackets (3) of the left and right frames through a roller shaft (18);

the frame (2) consists of a left frame body and a right frame body which are symmetrically arranged and are respectively fixed on the upper parts of the left frame and the right frame;

a rear cantilever (4) is respectively fixed at the rear ends of the left frame and the right frame, a support (5) for hanging a plastic film is arranged on the rear cantilever (4), and the support (5) is positioned behind the press roller (11);

the vibrating screen (14) is formed by detachably and transversely connecting a plurality of screens (14 a) which are arranged in parallel, and the tail end of each screen (14 a) is provided with a slag outlet (14 b); the guide ramp (15) is formed by detachably and transversely connecting a plurality of slide ways (15 a) which are arranged in parallel;

the vibrating screen (14) and the guide ramp (15) are assembled on the frame (2) on the left frame and the right frame in a slope shape with a high front part and a low back part; the guide ramp (15) is positioned below the vibrating screen (14), and the tail end of the guide ramp (15) is positioned behind the support (5).

2. The combined soil layer inner film spreading equipment with variable width as claimed in claim 1, wherein: the connecting rod (9) is a multi-section rod body structure which is connected and fastened with each other.

3. The combined soil layer inner film spreading equipment with variable width as claimed in claim 1, wherein: the front part of the press roller (11) is provided with a soil leveling plate (7); the soil leveling plate (7) is formed by detachably connecting a plurality of sections of mutually connected plate bodies and is hung at the lower parts of the left frame and the right frame through support arms (10).

4. The combined soil layer inner film spreading equipment with variable width as claimed in claim 1, wherein: the rear part of the frame (2) is provided with a chute (16) for receiving and guiding slag, and the opening of the chute (16) is positioned below the slag outlet (14 b) of each screen (14 a) of the vibrating screen; the sliding groove (16) is formed by detachably connecting a plurality of sections of groove bodies which are mutually connected.

5. The combined soil layer inner film spreading equipment with variable width as claimed in claim 1, wherein: the tail end of the rear cantilever (4) is provided with a scraper (13), and the scraper (13) is positioned behind the tail end of the guide ramp (15); the scraper (13) is composed of a plurality of sections of mutually connected plate bodies which are detachably connected.

6. The combined soil layer inner film spreading equipment with variable width as claimed in claim 1, wherein: at least one group of breakers (20) for breaking hardened soil are assembled above the front section or the middle section of the screen of the vibrating screen (14), and each breaker (20) comprises a rotating shaft (20 a) and a plurality of groups of vibrating rods (20 b) radially fixed on the rotating shaft; a rotating shaft (20 a) of the crusher is formed by detachably connecting a plurality of sections of mutually connected shaft bodies, and two ends of the rotating shaft (20 a) are respectively and rotatably connected with the frames (2) on the left frame and the right frame.

7. The combined soil layer inner film spreading equipment with variable width as claimed in claim 1, wherein: the total number of end rollers and middle rollers forming the press roller, the number of the screen meshes (14 a) of the vibrating screen (14), and the number of the slide ways (15 a) of the guide ramp (15) are the same, and the transverse widths of the screen meshes (14 a), the slide ways (15 a), the end rollers (11 a) and the middle rollers (11 b) which correspond to each other in the vertical direction are the same.

8. A variable width modular soil in-situ membrane installation according to any one of claims 1 to 7 wherein: the end roller and the end face of the middle roller are fixedly connected through a group of flanges, the flange (17) structure consists of an annular flange A (17 a) provided with bolt holes (17 a 1) and a flange B (17B) with an inner edge provided with tooth-shaped notches (17B 1), and the flange B (17B) is fixedly provided with connecting bolts (19) matched with the bolt holes (17 a 1) of the flange A (17 a);

two end faces of the middle roller are respectively fixed with a flange A (17 a) and a flange B (17B), and a bolt hole (17 a 1) of the flange A (17 a) of the middle roller at the same section corresponds to the position of a notch (17B 1) of the flange B (17B);

the inner ends of the two end roller sections in the axial direction are respectively fixed with a flange A (17 a) and a flange B (17B), and the outer end of the end roller section fixed with the flange A is provided with a through hole (11 a 1) corresponding to the bolt hole (17 a 1) of the flange A.

9. A variable width modular soil in-situ membrane installation according to any one of claims 1 to 7 wherein: the end roller (11 a) is formed by integrally connecting a cylindrical section roller body positioned on the inner side in the axial direction and a circular truncated cone section roller body positioned on the outer side in the axial direction.

10. A variable width modular soil in-situ membrane installation according to any one of claims 1 to 7 wherein: and a gradienter for observing the left and right horizontal postures of the frame is arranged on the left frame and/or the right frame.