CN110583243A - Soil-covering type straw crushing and returning machine - Google Patents
Soil-covering type straw crushing and returning machine Download PDFInfo
- Publication number
- CN110583243A CN110583243A CN201910997139.0A CN201910997139A CN110583243A CN 110583243 A CN110583243 A CN 110583243A CN 201910997139 A CN201910997139 A CN 201910997139A CN 110583243 A CN110583243 A CN 110583243A
- Authority
- CN
- China
- Prior art keywords
- straw
- dehydration
- crushing
- wheel
- power input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D82/00—Crop conditioners, i.e. machines for crushing or bruising stalks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Crushing And Pulverization Processes (AREA)
- Harvester Elements (AREA)
Abstract
The invention belongs to the field of agricultural machinery, and relates to an earth covering type straw smashing and returning machine. The invention utilizes the novel crushing cutter set to simultaneously complete straw dehydration and crushing work so as to solve the problems of redundant and complicated dehydration structure and low straw crushing rate of the existing machine, and utilizes the redesigned anti-blocking screen so as to solve the problem that the screen is easily blocked by the straws after being crushed by the existing machine. Meanwhile, after the straws are crushed, two times of earthing operations are carried out through the earthing device, so that the crushed straws can be fully fused with soil, and the requirement of returning to the field is met. The invention is suitable for crushing and returning most of tropical crop straws to the field, such as crushing and returning operation of banana, cassava and other straws.
Description
Technical Field
The invention belongs to the field of agricultural machinery, and relates to a straw crushing and returning machine, in particular to an earth covering type straw crushing and returning machine matched with a tractor.
Background
In the current banana planting area, a large amount of straws need to be cleaned after harvest season every year, and the conventional method is to burn the straws on the spot, so that serious environmental pollution is caused. As the straws are good fertile soil biomass, a plurality of straw smashing and returning machines are already available for realizing the effective returning of the straws, but some problems to be solved still exist.
Wherein, a still field machine is smashed to rolling shredding combination formula straw can have dehydration preliminary treatment and the crushing work that becomes the straw, but is carrying out the straw pretreatment of dehydration effect not good, leads to when carrying out the crushing work, and the straw moisture content is still higher to cause the straw fibre overlength after smashing, the condition of straw fibre winding on the screen cloth takes place easily, needs regularly clear up the jam of screen cloth, and the power is wasted time, reduces the still field work efficiency of straw. The utility model provides a still field machine is smashed to vertical straw, straw smashes the qualification rate and is greater than 94%, but the straw after smashing tiling on the earth's surface, fails to mix with soil fully, causes when next cultivation, and the straw after smashing does not become effective fertile soil living beings, in order to reach still field requirement.
Therefore, aiming at the straw returning work in tropical banana planting areas, a field straw crushing and returning machine which is compact in structure, high in crushing efficiency and capable of effectively returning soil is urgently needed to be designed, and the problems that the straw is blocked in the crushing process, the returning soil is poor in effect and the like are solved.
Disclosure of Invention
The invention aims to directly crush and return straws in banana fields, and particularly comprises four processing steps of primary straw dehydration, secondary straw dehydration, impact crushing of the straws and straw earthing. By fully utilizing the structural characteristics of the straw crushing roller, the straw crushing returning machine has compact structure, and solves the problems of low straw crushing returning efficiency and easy blockage of the crushing screen due to overlong crushed straws. Meanwhile, after the straws are crushed, the soil covering device is used for covering soil on the straws twice, so that the crushed straws become effective fertile biomass, the requirement of returning to the field is met, and the yield of bananas is increased.
The technical scheme adopted by the invention is as follows:
the utility model provides an earthing formula straw is smashed and is returned field machine which characterized in that: the frame comprises frame curb plate 10, casing 8, straw crushing screen mounting bracket 1001, gauge wheel mounting bracket 1002. The side plates 10 of the rack are completely symmetrically arranged at the left and right connecting parts, and a pair of depth wheel mounting frames 1002 are symmetrically welded at the outer ends of the side plates 10 of the left and right racks of the rack; the straw crushing screen mounting rack 1001 is welded between the left and right rack side plates 10 and connected with the two rack side plates 10; the upper and front ends of the two side plates 10 are provided with a total power input device, the power input work from a tractor to the straw crushing returning machine is completed through a total power input gear box 5 arranged in the middle section of a total power input shaft 305, the front end of the two side plates 10 is provided with a traction frame 6 for connecting the tractor and for completing the traction work of the straw crushing returning machine, the front ends of the two side plates 10 are provided with a straw collecting shovel 4 for collecting straws on the ground, so that the subsequent feeding, dehydration and crushing work of the straws are facilitated, the middle part of the frame is provided with a straw dehydration and crushing device 7, and the device consists of two stages of straw dehydration wheels consisting of a straw dehydration I wheel 304 and a straw dehydration II wheel 301, a dehydration and crushing dual-purpose straw crushing knife group 705 and a straw crushing screen 706 provided with an anti-winding sleeve 707. The device completes three processing steps of primary straw dehydration, secondary straw dehydration and impact crushing of the straws. The shape of the dehydration part of each dehydration crushing cutter 710 is the gear tooth outline with the same modulus as the straw dehydration I wheel 703 and the straw dehydration II wheel 702 and the radian of 10 degrees, each group of straw crushing cutter set 705 is formed by uniformly installing 6 dehydration crushing cutters 710 on the circumference, seven groups of straw crushing cutter sets 705 are arranged on the straw crushing cutter roller installation shaft 704 in a staggered way with 30 degrees of circumference and 30mm of axial distance, on the basis of completing the dehydration work of the straws without omission, in order to ensure that the moisture content of the straws is continuously reduced in the dehydration process, the installation distance between the outline of the straw crushing cutter set 705 and the maximum outline of the straw dehydration I wheel 703 is 50mm, and the installation distance between the outline of the straw crushing cutter set 705 and the maximum outline of the straw dehydration II wheel 702 is 30 mm; secondly, the whole of the dehydration smashing knife 710 with a certain weight is in a wedge-shaped hammer shape, the wedge-shaped tip end of the dehydration smashing knife 710 is used for continuously chopping dehydrated straws fed into the smashing cavity when the dehydration smashing knife 710 falls down in a rotating mode, therefore, the straw dehydration and straw smashing work can be simultaneously completed by utilizing the same novel smashing knife set 705, a dehydration driving wheel component is omitted, the problem of complicated structure of the existing machine tool is solved, in addition, a redesigned anti-blocking straw smashing screen 706 is utilized, the straw smashing screen 706 is installed on a straw smashing screen installing frame 1001, anti-winding sleeve installing columns 708 sleeved with anti-winding sleeves 707 are transversely and uniformly welded on a straw smashing screen frame 709 to form a fiber anti-winding structure, the axial distance of every two anti-winding sleeve installing columns 708 is 10mm to 20mm, and the diameter difference between the anti-winding sleeve installing columns 708 and the anti-winding sleeve 707 is kept between, in order to ensure that the straw fibers chopped by the wedge-shaped tips of the dewatering and crushing knives 710 can be crushed into straw residues with the length of 1cm-3cm after being fed to the straw crushing screen 706, the installation distance between the outer contour line of the straw crushing knife set 705 and the inner contour line of the straw crushing screen 706 is 15mm, and the problem that the crushed straw is easy to block the crushing screen is solved through the design. After crushing, the straw blocks are prevented from splashing by the crushing baffle plate 701 and vertically fall to the ground surface to reduce pollution, the earthing device 12 is installed at the rear end of the frame, straw earthing work after two times of crushing is realized by the earthing device 12, the crushed straws and soil are fully mixed to form effective fertile soil biomass, and the requirement of returning to the field is met, and the depth limiting devices 2 are respectively installed on the two depth limiting wheel installation frames 1002 at the outer sides of the two frame side plates 10 and used for limiting the height of the straw dewatering and crushing device 7 from the ground and the depth of the earthing device 12 embedded into the soil; the straw smashing device consists of a straw dehydrating and smashing device 7 and straw dehydrating and smashing device transmission systems 3 and 9, wherein the two sets of completely same straw dehydrating and smashing device transmission systems 3 and 9 are symmetrically arranged outside two rack side plates 10.
The transmission systems 3 and 9 of the straw dehydration and smashing device are composed of a total power input shaft 305, a total power input belt wheel 306, a straw dehydration I wheel installation shaft 304, a straw dehydration II wheel installation shaft 301, a straw dehydration power input belt wheel 314, a dehydration device reversing gear installation shaft 302, a dehydration device reversing gear 303, a straw smashing power input gear 312, a straw smashing power input belt wheel installation shaft 313, a V belt I307, a reversing gear 308, a V belt II 310, a V belt III 315 and a reversing belt wheel 309, wherein the total power input shaft 305 is respectively provided with the total power input belt wheel 306 at two ends, the rotation is transmitted to the reversing belt wheel 309 and the reversing gear 308 through the V belt II 310, the reversing gear 308 transmits the rotation to the straw smashing power input gear 312 arranged on the straw smashing power input gear installation shaft 313, and the total power input belt wheel 306 transmits the rotation to the straw dehydration power input belt wheel 314 through the V belt I307, the two straw dehydration power input belt wheels 314 are respectively arranged at two ends of a straw dehydration I wheel mounting shaft 304, and then a straw dehydration I wheel 703 arranged on the straw dehydration I wheel mounting shaft 304 is respectively meshed with two dehydration device reversing gears 303 and transmits the rotation to a straw dehydration II wheel 702 which is also meshed with the two dehydration device reversing gears 303;
the reversing belt wheel 309 and the reversing gear 308 are coaxially mounted on a reversing belt wheel mounting shaft 311 which is fixedly connected to the outer sides of the two frame side plates 10 respectively; two dehydrating device reversing gears 303 are arranged on the dehydrating device reversing gear mounting shafts 302 which are respectively fixedly connected with the inner sides of the two frame side plates 10; the straw crushing power input belt wheel mounting shaft 313, the straw dehydration I wheel mounting shaft 304 and the straw dehydration II wheel mounting shaft 301 are all mounted between the two machine frame side plates 10 in a bearing-shaft-bearing linking mode.
The straw dehydration and smashing device 7 consists of a straw dehydration I wheel 703, a straw dehydration II wheel 702, a straw smashing knife roller mounting shaft 704, a straw smashing knife group 705, a straw smashing screen 706 and a smashing baffle plate 701, wherein the straw smashing knife group 705 is arranged on the straw smashing knife roller mounting shaft 704 in a staggered manner at intervals, and straw blocks are prevented from splashing through the smashing baffle plate 701 welded between the two rack side plates 10 after smashing is finished, so that the straw blocks vertically fall to the ground surface;
the straw crushing cutter group 705 is formed by uniformly installing 6 identical dehydration crushing cutters 710 on the circumference, wherein the blade part of each dehydration crushing cutter 710 is forged by alloy; the straw crushing knife roller mounting shaft 704 is mounted between the two frame side plates 10 in a bearing-shaft-bearing linkage manner;
the straw crushing screen 706 is composed of an anti-winding sleeve 707 and anti-winding sleeve mounting columns 708, wherein the straw crushing screen 706 is mounted on a straw crushing screen mounting rack 1001, and the anti-winding sleeve mounting columns 708 are transversely uniformly welded on a straw crushing screen frame 709;
preferably, the axial installation distance between every two straw crushing cutter sets 705 is 10mm, the maximum outer contour installation distance between the straw crushing cutter set 705 and the straw dehydration I wheel 703 is 50mm, the maximum outer contour installation distance between the straw crushing cutter set 705 and the straw dehydration II wheel 702 is 30mm, and the installation distance between the outer contour of the straw crushing cutter set 705 and the inner contour of the straw crushing screen 706 is 15 mm; the distance between the axes of the two anti-winding sleeve mounting posts 708 is 10mm to 20mm, the anti-winding sleeve 707 is sleeved on the anti-winding sleeve mounting post 708, and the diameter difference between the two is 3 mm to 8 mm.
The soil covering device 12 is composed of a soil covering device power input belt wheel 102, a right-handed auger power input gear 101, a soil covering device reversing gear 103, a left-handed auger power input gear 104, a left-handed auger helical blade 107, a left-handed auger 108, a right-handed auger helical blade 105, a right-handed auger 106, a right-handed auger installation shaft 109, a soil covering device reversing gear installation shaft 110 and a left-handed auger installation shaft 111, wherein the reversing belt wheel 309 transmits rotation to the soil covering device power input belt wheel 102 through a V belt III 315, the two soil covering device power input belt wheels 102 and the two right-handed auger power input gears 101 are coaxially arranged front and back, the two ends of the right-handed auger installation shaft 109 are installed, the right-handed auger 106 is sleeved on the right-handed auger installation shaft 109 and is arranged between the two frame side plates 10, the right-handed auger power input gear 101, the rotation is transmitted to two left-handed auger power input gears 104 arranged at two ends of a left-handed auger mounting shaft 111, and a left-handed auger 108 is sleeved on the left-handed auger mounting shaft 111 and is arranged between two rack side plates; the left-handed screw conveyor installation shaft 111 and the right-handed screw conveyor installation shaft 109 are installed between the two rack side plates 10 in a bearing-shaft-bearing connection mode;
preferably, the projections of the lateral surfaces of the left-handed auger 108 and the right-handed auger 106 are conical, the conicity is between 15 and 20 degrees, the large end of the left-handed auger 108 and the small end of the right-handed auger 106 are arranged on the same side, and the distance between the outline lines of the left-handed auger 108 and the right-handed auger 106 is between 50 and 80mm, so that the two times of straw earthing work are realized, and the crushed straws become effective fertile soil biomass.
The depth limiting device 2 comprises a threaded column 201, an adjusting nut group 202, a tensioning spring 203, a square column 204 and a depth limiting wheel 205, wherein the two soil covering devices 2 are respectively and symmetrically installed on a depth limiting wheel installation frame 1002 on the outer sides of the two rack side plates 10, the depth limiting wheel 205 is fixedly connected with the L-shaped square column 204, the threaded column 201 is welded at the upper end of the square column 204, the tensioning spring 203 is sleeved on the threaded column 201 and enables one end of the tensioning spring to be in contact with the depth limiting wheel installation frame 1002, and the other end of the tensioning spring 203 is in threaded connection with the threaded column 201 through the adjusting nut group 202 to achieve compression and loosening of the tensioning spring 203, so that depth limiting work is achieved;
preferably, the distance between the outer contour lines of the right-handed auger 106 of the straw dewatering and crushing device 7 and the soil covering device 12 is 350-500 mm; the distance between the lowest point of the straw dehydration I wheel 703 and the horizontal ground is not less than 30 mm.
During operation, the grinding and returning machine is hung on a wheel tractor by using a traction frame 6, the soil covering type straw grinding and returning machine is dragged by the wheel tractor to move forwards, the power of the wheel tractor is input into a gear box 5 through the total power to drive a straw dewatering I wheel 703, a straw dewatering II wheel 702 in a straw dewatering and grinding device 7 to rotate anticlockwise and a straw grinding cutter set 705 to rotate clockwise, the straw grinding cutter set 705 rotating at high speed is firstly matched with the dewatering I wheel 703 to realize primary dewatering work on straws, then the straw grinding cutter set 705 is matched with the straw dewatering II wheel 702 to realize secondary dewatering work on the straws, finally the straw grinding cutter set 705 finishes beating and grinding work at a position where a straw grinding screen 706 is arranged, then the soil covering device 12 carries out secondary soil covering and stirring work on the ground straws and soil, so that the ground straws become effective fertile soil biomass, the requirement of returning the straw to the field is met, and the whole straw crushing and returning operation is completed.
The straw crushing machine has the advantages that the novel crushing cutter set is utilized to simultaneously complete straw dehydration and crushing work so as to solve the problems that the dehydration structure of the existing machine is heavy and complicated and the crushing rate of straws is not high, and the redesigned anti-blocking screen is utilized so as to solve the problem that the crushed straws of the existing machine are easy to block the screen. Meanwhile, after the straws are crushed, two times of earthing operations are carried out through the earthing device, so that the crushed straws can be fully fused with soil, and the requirement of returning to the field is met. The invention is suitable for crushing and returning most of tropical crop straws to the field, such as crushing and returning operation of banana, cassava and other straws.
Drawings
Fig. 1 is a schematic view of the whole machine assembly of the present invention.
FIG. 2 is a schematic representation of the transmission system of the present invention.
FIG. 3 is a schematic view of the dewatering and crushing of straw according to the present invention.
FIG. 4 is a schematic view of the apparatus for covering the soil of the present invention.
FIG. 5 is a schematic view of a depth stop device according to the present invention.
FIG. 6 is a schematic view of the straw crushing cutter set of the present invention.
In the figure: 1. the soil covering device comprises a soil covering device transmission system 11, a soil covering device transmission system 2, a depth limiting device 3, a straw dehydration and smashing device transmission system 9, a straw dehydration and smashing device transmission system 4, a straw collecting shovel 5, a total power input gear box 6, a traction frame 7, a straw dehydration and smashing device 8, a machine frame side plate 12, a soil covering device 109, a right-handed auger mounting shaft 101, a right-handed auger power input gear 105, a right-handed auger helical blade 106, a right-handed auger 102, a soil covering device power input belt pulley 103, a soil covering device reversing gear 104, a left-handed auger power input gear 107, a left-handed auger helical blade 108, a left-handed auger 111, a left-handed auger mounting shaft 110, a soil covering device reversing gear mounting shaft 201, a threaded column 202, an adjusting nut group 203, a tensioning spring 204, a square column 205, a depth limiting wheel 301, a straw dehydration II wheel mounting shaft 302 and. The straw crushing device comprises a dehydration device reversing gear 304, a straw dehydration wheel I mounting shaft 305, a total power input shaft 306, a total power input belt wheel 307, a V belt I308, a reversing gear 309, a reversing belt wheel 310, a V belt II 311, a straw crushing power input gear 312, a reversing belt wheel mounting shaft 313, a straw crushing power input belt wheel mounting shaft 314, a straw dehydration power input belt wheel 315, a V belt III 701, a crushing stop plate 702, a straw dehydration wheel II 703, a straw dehydration wheel I704, a straw crushing knife roller mounting shaft 705, a straw crushing knife group 706, a straw crushing screen 707, an anti-winding sleeve 708, an anti-winding sleeve mounting column 709, a straw crushing screen frame 710, a dehydration crushing knife 1001, a straw crushing screen mounting frame 1002 and a depth limiting wheel mounting frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the frame of the soil covering type straw crushing and returning machine provided by the invention comprises a frame side plate 10, a machine shell 8, a straw crushing screen mounting rack 1001 and a depth limiting wheel mounting rack 1002. The side plates 10 of the rack are completely symmetrically arranged at the left and right connecting parts, and a pair of depth wheel mounting frames 1002 are symmetrically welded at the outer ends of the side plates 10 of the left and right racks of the rack; the straw crushing screen mounting rack 1001 is welded between the left and right rack side plates 10 and connected with the two rack side plates 10; the upper and front ends of the two side plates 10 are provided with a total power input device, the power input work from a tractor to the straw crushing returning machine is completed through a total power input gear box 5 arranged in the middle section of a total power input shaft 305, the front end of the two side plates 10 is provided with a traction frame 6 for connecting the tractor and for completing the traction work of the straw crushing returning machine, the front ends of the two side plates 10 are provided with a straw collecting shovel 4 for collecting straws on the ground, so that the subsequent feeding, dehydration and crushing work of the straws are facilitated, the middle part of the frame is provided with a straw dehydration and crushing device 7, and the device consists of two stages of straw dehydration wheels consisting of a straw dehydration I wheel 304 and a straw dehydration II wheel 301, a dehydration and crushing dual-purpose straw crushing knife group 705 and a straw crushing screen 706 provided with an anti-winding sleeve 707. The device completes three processing steps of primary straw dehydration, secondary straw dehydration and impact crushing of the straws. The shape of the dehydration part of each dehydration crushing cutter 710 is the gear tooth outline with the same modulus as the straw dehydration I wheel 703 and the straw dehydration II wheel 702 and the radian of 10 degrees, each group of straw crushing cutter set 705 is formed by uniformly installing 6 dehydration crushing cutters 710 on the circumference, seven groups of straw crushing cutter sets 705 are arranged on the straw crushing cutter roller installation shaft 704 in a staggered way with 30 degrees of circumference and 30mm of axial distance, on the basis of completing the dehydration work of the straws without omission, in order to ensure that the moisture content of the straws is continuously reduced in the dehydration process, the installation distance between the outline of the straw crushing cutter set 705 and the maximum outline of the straw dehydration I wheel 703 is 50mm, and the installation distance between the outline of the straw crushing cutter set 705 and the maximum outline of the straw dehydration II wheel 702 is 30 mm; secondly, the whole of the dehydration smashing knife 710 with a certain weight is in a wedge-shaped hammer shape, the wedge-shaped tip end of the dehydration smashing knife 710 is used for continuously chopping dehydrated straws fed into the smashing cavity when the dehydration smashing knife 710 falls down in a rotating mode, therefore, the straw dehydration and straw smashing work can be simultaneously completed by utilizing the same novel smashing knife set 705, a dehydration driving wheel component is omitted, the problem of complicated structure of the existing machine tool is solved, in addition, a redesigned anti-blocking straw smashing screen 706 is utilized, the straw smashing screen 706 is installed on a straw smashing screen installing frame 1001, anti-winding sleeve installing columns 708 sleeved with anti-winding sleeves 707 are transversely and uniformly welded on a straw smashing screen frame 709 to form a fiber anti-winding structure, the axial distance of every two anti-winding sleeve installing columns 708 is 10mm to 20mm, and the diameter difference between the anti-winding sleeve installing columns 708 and the anti-winding sleeve 707 is kept between, in order to ensure that the straw fibers chopped by the wedge-shaped tips of the dewatering and crushing knives 710 can be crushed into straw residues with the length of 1cm-3cm after being fed to the straw crushing screen 706, the installation distance between the outer contour line of the straw crushing knife set 705 and the inner contour line of the straw crushing screen 706 is 15mm, and the problem that the crushed straw is easy to block the crushing screen is solved through the design. After crushing, the straw blocks are prevented from splashing by the crushing baffle plate 701 and vertically fall to the ground surface to reduce pollution, the earthing device 12 is installed at the rear end of the frame, straw earthing work after two times of crushing is realized by the earthing device 12, the crushed straws and soil are fully mixed to form effective fertile soil biomass, and the requirement of returning to the field is met, and the depth limiting devices 2 are respectively installed on the two depth limiting wheel installation frames 1002 at the outer sides of the two frame side plates 10 and used for limiting the height of the straw dewatering and crushing device 7 from the ground and the depth of the earthing device 12 embedded into the soil;
as a technical optimization scheme of the invention, the straw smashing device consists of a straw dehydrating and smashing device 7 and straw dehydrating and smashing device transmission systems 3 and 9, wherein the two sets of completely same straw dehydrating and smashing device transmission systems 3 and 9 are symmetrically arranged outside two rack side plates 10;
referring to fig. 2 and 3, the transmission system 3, 9 of the straw dewatering and crushing device is composed of a main power input shaft 305, a main power input pulley 306, a first straw dewatering wheel mounting shaft 304, a second straw dewatering wheel mounting shaft 301, a first straw dewatering power input pulley 314, a dewatering device reversing gear mounting shaft 302, a dewatering device reversing gear 303, a straw crushing power input gear 312, a straw crushing power input pulley mounting shaft 313, a V belt I307, a reversing gear 308, a V belt II 310, a V belt III 315 and a reversing pulley 309, wherein the reversing pulley 309 and the reversing gear 308 are mounted on a reversing pulley mounting shaft 311 respectively fixed on the outer sides of two frame side plates 10, the main power input pulley 306 is mounted at both ends of the main power input shaft 305, the two first straw dewatering power input pulleys 314 are respectively mounted at both ends of the first straw dewatering wheel mounting shaft 304, and then the first straw dewatering wheel 703 mounted on the first straw dewatering wheel mounting shaft 304 is respectively engaged with the two dewatering device reversing gears 303, two dewatering device reversing gears 303 are arranged on a dewatering device reversing gear installation shaft 302 fixedly connected to the inner sides of the two rack side plates 10 respectively, and a straw crushing power input gear installation shaft 313, a straw dewatering I wheel installation shaft 304 and a straw dewatering II wheel installation shaft 301 are arranged between the two rack side plates 10 in a bearing-shaft-bearing linkage mode;
as a technical optimization scheme of the invention, the total power input belt wheel 306 transmits rotation to the reversing belt wheel 309 and the reversing gear 308 through the V belt II 310, the reversing gear 308 transmits the rotation to the straw crushing power input gear 312 arranged on the straw crushing power input gear installation shaft 313, the total power input belt wheel 306 transmits the rotation to the straw dewatering power input belt wheel 314 through the V belt I307, the straw dewatering I wheel 703 is respectively meshed with the two dewatering device reversing gears 303, and transmits the rotation to the straw dewatering II wheel 702 which is also meshed with the two dewatering device reversing gears 303.
Referring to fig. 3 and 6, the straw dewatering and crushing device 7 is composed of a straw dewatering wheel i 703, a straw dewatering wheel ii 702, a straw crushing knife roller mounting shaft 704, a straw crushing knife group 705, a straw crushing screen 706 and a crushing baffle plate 701, wherein the straw crushing knife group 705 is arranged on the straw crushing knife roller mounting shaft 704 in a staggered manner at intervals; the straw crushing cutter group 705 is formed by uniformly installing 6 identical dehydration crushing cutters 710 on the circumference, wherein the blade part of each dehydration crushing cutter 710 is forged by alloy; the straw and stalk crushing knife roller mounting shaft 704 is mounted between the two frame side plates 10 in a bearing-shaft-bearing linkage mode; the straw crushing screen 706 is composed of an anti-winding sleeve 707 and anti-winding sleeve mounting posts 708, wherein the straw crushing screen 706 is mounted on the straw crushing screen mounting rack 1001, and the anti-winding sleeve mounting posts 708 are uniformly and transversely welded on the straw crushing screen frame 709; after the crushing is finished, the straw blocks are prevented from splashing by the crushing baffle plate 701 welded between the two side plates 10 of the machine frame, so that the straw blocks vertically fall to the ground surface.
As a technical optimization scheme of the invention, the installation distance between the axes of the two straw crushing cutter sets 705 is 10mm, the installation distance between the maximum outer contour lines of the straw crushing cutter set 705 and the straw dehydration I wheel 703 is 50mm, the installation distance between the maximum outer contour lines of the straw crushing cutter set 705 and the straw dehydration II wheel 702 is 30mm, and the installation distance between the outer contour lines of the straw crushing cutter set 705 and the inner contour lines of the straw crushing screen 706 is 15 mm;
as a technical optimization scheme of the invention, the distance between the axes of the two anti-winding sleeve mounting posts 708 is 10mm to 20mm, the anti-winding sleeve 707 is sleeved on the anti-winding sleeve mounting post 708, and the diameter difference between the two anti-winding sleeve mounting posts is 3 mm to 8 mm;
referring to fig. 4, the soil covering device 12 is composed of a soil covering device power input belt pulley 102, a right-handed auger power input gear 101, a soil covering device reversing gear 103, a left-handed auger power input gear 104, a left-handed auger power input gear 107, a left-handed auger 108, a right-handed auger power input gear 105, a right-handed auger 106, a right-handed auger mounting shaft 109, a soil covering device reversing gear mounting shaft 110, and a left-handed auger mounting shaft 111, wherein the two soil covering device power input belt pulleys 102 and the two right-handed auger power input gears 101 are coaxially arranged in front and behind each other and are mounted at two ends of the right-handed auger mounting shaft 109, the right-handed auger 106 is sleeved on the right-handed auger mounting shaft 109 and is placed between the two rack side plates 10, the right-handed auger power input gear 101 is engaged with the soil covering device reversing gear 103 mounted on the soil covering, the left-handed auger 108 is sleeved on the left-handed auger mounting shaft 111 and is arranged between the two rack side plates, and the left-handed auger mounting shaft 111 and the right-handed auger mounting shaft 109 are arranged between the two rack side plates 10 in a bearing-shaft-bearing connection mode;
as a technical optimization scheme of the invention, the projections of the lateral surfaces of the left-handed auger 108 and the right-handed auger 106 are conical, the conicity is between 15 and 20 degrees, the installation mode is that the large end of the left-handed auger 108 and the small end of the right-handed auger 106 are installed at the same side, and the distance between the outline lines of the left-handed auger 108 and the right-handed auger 106 is between 50 and 80mm, so that the two times of straw earthing work is realized, and the crushed straw becomes the effective fertile soil biomass;
as a technical optimization scheme of the invention, the reversing belt wheel 309 transmits rotation to the power input belt wheel 102 of the soil covering device through the V belt III 315, the right-handed auger power input gear 101 is meshed with the reversing gear 103 of the soil covering device, and the rotation is transmitted to the two left-handed auger power input gears 104.
Referring to fig. 5, the depth limiting device 2 is composed of a threaded column 201, an adjusting nut set 202, a tensioning spring 203, a square column 204 and a depth wheel 205, wherein the two soil covering devices 2 are respectively and symmetrically installed on a depth wheel installation frame 1002 at the outer sides of the two rack side plates 10, the depth wheel 205 is fixedly connected with the L-shaped square column 204, the threaded column 201 is welded at the upper end of the square column 204, the tensioning spring 203 is sleeved on the threaded column 201 and enables one end of the tensioning spring to be in contact with the depth wheel installation frame 1002, and the other end of the tensioning spring is in threaded connection with the threaded column 201 through the adjusting nut set 202; the distance between the outer contour lines of the right-handed auger 106 of the straw dewatering and crushing device 7 and the soil covering device 12 is 350-500 mm; the distance between the lowest point of the straw dehydration I wheel 703 and the horizontal ground is not less than 30 mm; the depth-limiting work is realized by adjusting the nut group 202 to compress and release the tension spring 203.
The tractor is connected with a traction frame 6 to realize the traction work of the straw crushing and returning machine; then, the collecting shovel 4 collects straws creeping on the ground; meanwhile, the total power input device inputs power into the straw crushing returning machine through a total power input belt wheel 306, the total power input belt wheel 306 transmits the rotation to a reversing belt wheel 309 through a V belt II 310 to enable the straw crushing returning machine to select clockwise, and then the reversing belt wheel 309 transmits the rotation to a straw crushing power input gear 312 through a reversing gear 308 to enable the straw crushing power input gear 312 to rotate clockwise; meanwhile, the main power input belt wheel 306 transmits the rotation to the straw dehydration power input belt wheel 314 through the V-belt I307, so that the straw dehydration power input belt wheel rotates clockwise, and the rotation is transmitted to the straw dehydration II wheel 702 which is also meshed with the two dehydration device reversing gears 303 because the straw dehydration I wheel 703 is respectively meshed with the two dehydration device reversing gears 303; after crushing, the straw blocks are prevented from splashing by the crushing baffle plate 701 welded between the two side plates 10 of the machine frame, so that the straw blocks vertically fall to the ground surface, and the pollution is reduced; then, the reversing belt wheel 309 transmits the rotation to the power input belt wheel 102 of the soil covering device through a V belt III 315, the right-handed auger power input gear 101 is meshed with the reversing gear 103 of the soil covering device, and the rotation is transmitted to the two left-handed auger power input gears 104; wherein the tightening and loosening of the tension spring 203 is realized by adjusting the nut set 202, thereby realizing the depth limiting work.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides an earthing formula straw is smashed and is returned field machine, mainly comprises frame, straw reducing mechanism and transmission system etc. its characterized in that: the machine frame is composed of a machine frame side plate (10), a machine shell (8), a straw crushing screen mounting rack (1001) and a depth wheel mounting rack (1002); the side plate (10) of the rack is divided into a left part and a right part which are symmetrically arranged, and a pair of depth wheel mounting racks (1002) are symmetrically welded at the outer end of the side plate (10) of the rack; the straw crushing screen mounting rack (1001) is welded between the left and right rack side plates (10); the middle part of the front ends of the two frame side plates (10) is provided with a total power input device; a traction frame (6) is arranged between the two frame side plates (10) and is used for connecting a tractor; the front ends of the two frame side plates (10) are provided with straw collecting shovels (4) for collecting straws creeping on the ground; the middle part of the rack is provided with a straw dehydration and smashing device (7), the device is used for completing three processing steps of primary dehydration, secondary dehydration and impact smashing on straws, the problem that the structure of the existing machine is heavy and complicated is solved, and the problem that the smashed straws easily block the smashing screen is solved by utilizing a straw smashing screen (706); the back end of the frame is provided with an earthing device (12) to realize earthing work after two times of crushing, so that the crushed straws can be fully fused with soil; the outer sides of the side plates (10) of the frame are respectively provided with a depth limiting device (2) for limiting the height of the straw dewatering and crushing device (7) from the ground and the depth of the soil covering device (12) embedded into soil;
the straw dehydration and smashing device (7) consists of a dehydration and smashing knife (710), a straw dehydration I wheel (703), a straw dehydration II wheel (702), a straw smashing knife roller mounting shaft (704), a straw smashing knife group (705), a straw smashing screen (706) and a smashing baffle plate (701), wherein the dehydration part of each dehydration and smashing knife (710), the straw dehydration I wheel (703) and the straw dehydration II wheel (702) have the same modulus and the external gear profile with the shape of 10-degree radian, the whole device is in a wedge hammer shape, and the wedge tip of the device is used for chopping dehydrated straws fed into a smashing cavity; the straw crushing cutter set (705) is formed by uniformly installing 6 dewatering crushing cutters (710) at 360 degrees, every two groups of the seven straw crushing cutter sets (705) are circumferentially staggered at 30 degrees and are axially installed on a straw crushing cutter roller installation shaft (704) at a distance of 30mm, the installation distance between the outer contour line of each straw crushing cutter set and a straw dewatering I wheel (703) is 50mm, the installation distance between each straw crushing cutter set and a straw dewatering II wheel (702) is 30mm, the installation distance between each straw crushing cutter set and the inner contour line of a straw crushing screen (706) is 15mm, and the crushing material baffle plate (701) is used for stopping the splashing of straws after crushing is finished, so that the straws vertically fall to the ground surface and pollution is reduced; the straw crushing screen (706) consists of an anti-winding sleeve (707) and anti-winding sleeve mounting columns (708), and is transversely and uniformly welded on a straw crushing screen frame (709) to form a fiber anti-winding structure, and the axial distance of the anti-winding sleeve mounting columns (708) is 10mm to 20 mm;
the soil covering device (12) consists of a power input belt wheel (102), a right-handed auger power input gear (101), a soil covering device reversing gear (103), a left-handed auger power input gear (104), a left-handed auger helical blade (107), a left-handed auger (108), a right-handed auger helical blade (105), a right-handed auger (106), a right-handed auger mounting shaft (109), a soil covering device reversing gear mounting shaft (110) and a left-handed auger mounting shaft (111), wherein the two soil covering device power input belt wheels (102) and the two right-handed auger power input gears (101) are coaxial and are arranged in a front-back mode, the right-handed auger (106) is sleeved on the right-handed auger mounting shaft (109) and is arranged between the two rack side plates (10), and the left-handed auger (108) is sleeved on the left-handed auger mounting;
the transmission system (3, 9) of the straw dehydration and smashing device comprises a total power input shaft (305), a total power input belt wheel (306), a straw dehydration I wheel installation shaft (304), a straw dehydration II wheel installation shaft (301), a straw dehydration power input belt wheel (314), a dehydration device reversing gear installation shaft (302), a dehydration device reversing gear (303), a straw smashing power input gear (312), a straw smashing power input belt wheel installation shaft (313), a V belt I (307), a reversing gear (308), a V belt II (310), a V belt III (315) and a reversing belt wheel (309), wherein the total power input belt wheel (306) is respectively installed at two ends of the total power input shaft (305), the rotation is transmitted to the reversing belt wheel (309) and the reversing gear (308) through the V belt II (310), the reversing gear (308) transmits the rotation to the straw smashing power input gear (312) installed on the straw smashing power input gear installation shaft 313, the main power input belt wheel (306) transmits rotation to the straw dehydration power input belt wheel (314) through a V-belt I (307), and the two straw dehydration power input belt wheels (314) are respectively arranged at two ends of a straw dehydration I-wheel mounting shaft (304);
depth-limiting device (2) by screw thread post (201), adjusting nut group (202), tensioning spring (203), square post (204), depth-limiting wheel (205) are constituteed, wherein depth-limiting wheel (205) concreties with square post (204) of L type, at square post (204) upper end welding screw thread post (201), tensioning spring (203) suit is on screw thread post (201) and makes its one end and depth-limiting wheel mounting bracket (1002) contact, the other end is connected with screw thread post (201) through adjusting nut group (202) and is realized compressing tightly and relaxing of tensioning spring (203), thereby realize the depth-limiting work.
2. The soil-covered straw crushing and returning machine as claimed in claim 1, which is characterized in that: the reversing belt wheel (309) and the reversing gear (308) are coaxially arranged on a reversing belt wheel mounting shaft (311); two dehydration devices reversing gears (303) are arranged on a reversing gear mounting shaft (302).
3. The soil-covered straw crushing and returning machine as claimed in claim 1, which is characterized in that: levogyration auger (108), dextrorotation auger (106) side projection be the toper, and the tapering is between 15 degrees to 20 degrees, the mounting means is the big head end of levogyration auger (108) and the installation of dextrorotation auger (106) tip homonymy, and levogyration auger (108), dextrorotation auger (106) outline distance are between 50mm to 80 mm.
4. The soil-covered straw crushing and returning machine as claimed in claim 1, which is characterized in that: the space between the outline lines of the straw dehydration and smashing device (7) and the right-handed auger (106) is 350-500 mm.
5. The soil-covered straw crushing and returning machine as claimed in claim 1, which is characterized in that: the distance between the lowest point of the straw dehydration wheel I (703) and the horizontal ground is not less than 30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910997139.0A CN110583243B (en) | 2019-10-20 | 2019-10-20 | Soil-covering type straw crushing and returning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910997139.0A CN110583243B (en) | 2019-10-20 | 2019-10-20 | Soil-covering type straw crushing and returning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110583243A true CN110583243A (en) | 2019-12-20 |
| CN110583243B CN110583243B (en) | 2023-04-07 |
Family
ID=68851207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910997139.0A Active CN110583243B (en) | 2019-10-20 | 2019-10-20 | Soil-covering type straw crushing and returning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110583243B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111201851A (en) * | 2020-01-13 | 2020-05-29 | 吉林大学 | Coupling bionic straw-soil uniform mixed burying combined machine |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4510948A (en) * | 1983-02-25 | 1985-04-16 | Sperry Corporation | Discharge assist means for combine harvesters |
| US4664790A (en) * | 1983-10-06 | 1987-05-12 | Svante Lundqvist | Method for screening of wooden chips and the like and a screen |
| JPH07204897A (en) * | 1994-01-24 | 1995-08-08 | Tookiyoo Menki:Kk | Dehydration treatment method of waste vegetables and the like and device therefor |
| FR2758344A1 (en) * | 1997-01-16 | 1998-07-17 | Ardeval Champagne Ardenne | PROCESS FOR FRACTIONING STRAW OF CEREALS, IN PARTICULAR WHEAT AND BARLEY |
| CN103229635A (en) * | 2013-05-07 | 2013-08-07 | 海南大学 | Rolling and chopping combined banana straw crushing and returning machine |
| CN106211953A (en) * | 2016-07-28 | 2016-12-14 | 海南大学 | A kind of Fructus Musae straw dehydration pulverizer |
| CN205995760U (en) * | 2016-08-05 | 2017-03-08 | 新兴铸管股份有限公司 | A kind of flat screen |
| CN107124964A (en) * | 2017-07-11 | 2017-09-05 | 李洪波 | A kind of ridging cover type stem stubble chopper in small, broken bits |
| CN107668752A (en) * | 2017-11-17 | 2018-02-09 | 巴东隆生生物科技有限公司 | A kind of straw feed dehydration device |
| CN107837937A (en) * | 2017-11-17 | 2018-03-27 | 巴东隆生生物科技有限公司 | A kind of stalk feed crushing machine |
| CN207744398U (en) * | 2017-10-19 | 2018-08-21 | 黑龙江海轮王科技股份有限公司 | Self-propelled type straw recycles cuber |
| CN108525982A (en) * | 2018-05-22 | 2018-09-14 | 安徽捷迅光电技术有限公司 | A kind of special screening plant of tealeaves |
| CN208063876U (en) * | 2018-04-14 | 2018-11-09 | 黄振军 | A kind of corn stalk powder crushing device |
| CN108811801A (en) * | 2018-05-28 | 2018-11-16 | 海南大学 | A kind of banana stalk is ground into type all-in-one machine |
| CN109005958A (en) * | 2018-07-26 | 2018-12-18 | 安徽康桥农业开发有限公司 | A kind of stalk dehydration grinding device |
| CN208317492U (en) * | 2018-06-23 | 2019-01-04 | 简小勇 | A kind of antiwind thresing machine |
-
2019
- 2019-10-20 CN CN201910997139.0A patent/CN110583243B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4510948A (en) * | 1983-02-25 | 1985-04-16 | Sperry Corporation | Discharge assist means for combine harvesters |
| US4664790A (en) * | 1983-10-06 | 1987-05-12 | Svante Lundqvist | Method for screening of wooden chips and the like and a screen |
| JPH07204897A (en) * | 1994-01-24 | 1995-08-08 | Tookiyoo Menki:Kk | Dehydration treatment method of waste vegetables and the like and device therefor |
| FR2758344A1 (en) * | 1997-01-16 | 1998-07-17 | Ardeval Champagne Ardenne | PROCESS FOR FRACTIONING STRAW OF CEREALS, IN PARTICULAR WHEAT AND BARLEY |
| CN103229635A (en) * | 2013-05-07 | 2013-08-07 | 海南大学 | Rolling and chopping combined banana straw crushing and returning machine |
| CN106211953A (en) * | 2016-07-28 | 2016-12-14 | 海南大学 | A kind of Fructus Musae straw dehydration pulverizer |
| CN205995760U (en) * | 2016-08-05 | 2017-03-08 | 新兴铸管股份有限公司 | A kind of flat screen |
| CN107124964A (en) * | 2017-07-11 | 2017-09-05 | 李洪波 | A kind of ridging cover type stem stubble chopper in small, broken bits |
| CN207744398U (en) * | 2017-10-19 | 2018-08-21 | 黑龙江海轮王科技股份有限公司 | Self-propelled type straw recycles cuber |
| CN107668752A (en) * | 2017-11-17 | 2018-02-09 | 巴东隆生生物科技有限公司 | A kind of straw feed dehydration device |
| CN107837937A (en) * | 2017-11-17 | 2018-03-27 | 巴东隆生生物科技有限公司 | A kind of stalk feed crushing machine |
| CN208063876U (en) * | 2018-04-14 | 2018-11-09 | 黄振军 | A kind of corn stalk powder crushing device |
| CN108525982A (en) * | 2018-05-22 | 2018-09-14 | 安徽捷迅光电技术有限公司 | A kind of special screening plant of tealeaves |
| CN108811801A (en) * | 2018-05-28 | 2018-11-16 | 海南大学 | A kind of banana stalk is ground into type all-in-one machine |
| CN208317492U (en) * | 2018-06-23 | 2019-01-04 | 简小勇 | A kind of antiwind thresing machine |
| CN109005958A (en) * | 2018-07-26 | 2018-12-18 | 安徽康桥农业开发有限公司 | A kind of stalk dehydration grinding device |
Non-Patent Citations (3)
| Title |
|---|
| 张旦主等: "切揉组合式青贮玉米粉碎机的设计与研究" * |
| 徐树英等: "香蕉茎秆挤压脱水技术装备研究进展及改进方向", 《农业工程学报》 * |
| 王自强等: "沟齿式香蕉假茎粉碎还田机设计与试验", 《农机化研究》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111201851A (en) * | 2020-01-13 | 2020-05-29 | 吉林大学 | Coupling bionic straw-soil uniform mixed burying combined machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110583243B (en) | 2023-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103229635B (en) | Rolling and chopping combined banana straw crushing and returning machine | |
| CN103623892B (en) | Pulverizer | |
| CN102612931A (en) | Stalk cutting, guiding and returning device | |
| CN106216040B (en) | A kind of high humidity solid organic matters pulverizer | |
| CN106385988B (en) | Thresing machine | |
| CN110583243B (en) | Soil-covering type straw crushing and returning machine | |
| CN203251674U (en) | Corn stalk chopping machine with improved structure | |
| CN210491587U (en) | Cotton stalk pulling, smashing and plough layer residual film recycling combined machine | |
| CN208462436U (en) | A kind of corn stover recycling machine | |
| CN208675779U (en) | Multi roll imitates ridge shape Cassava stalk crushing and returning to field machine | |
| CN103518432A (en) | Straw smashing and rotary tillage seeding composite operation machine | |
| CN206791028U (en) | Banana stalk segment chopper | |
| CN113711783B (en) | Speed-adjustable asynchronous chopping type straw crushing device | |
| CN2847823Y (en) | Improved corn harvester | |
| CN100367842C (en) | Machine for shredding corn stalk, ploughing silage stubble and returning it to field | |
| CN2860040Y (en) | Corn stalk crushing device | |
| CN2860044Y (en) | Corn harvester | |
| CN108076838A (en) | A kind of sugar cane leaf crushing and returning to field machine | |
| CN211322068U (en) | Chain-shearing type cotton straw crusher | |
| CN203708852U (en) | Multifunctional straw smashing returning and stubble cleaning machine | |
| CN206932700U (en) | A kind of two-way crushing and returning to field machine and tillage machinery | |
| CN202738399U (en) | Straw crushing rotary tillage sowing compound operation machine | |
| CN203635262U (en) | Crusher | |
| CN207653048U (en) | Forage breaks the auxiliary drawing-in device of bundle machine | |
| CN201243491Y (en) | Cotton stalk pulling and crushing harvester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ru Shaofeng Inventor after: Wang Jufei Inventor after: Wu Di Inventor after: Wang Ziqiang Inventor after: Wang Juwei Inventor before: Wang Jufei Inventor before: Ru Shaofeng Inventor before: Wu Di Inventor before: Wang Ziqiang Inventor before: Wang Juwei |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |