CN115956836A - Mechanical and pneumatic integrated residual material recycling machine - Google Patents

Mechanical and pneumatic integrated residual material recycling machine Download PDF

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Publication number
CN115956836A
CN115956836A CN202111179589.2A CN202111179589A CN115956836A CN 115956836 A CN115956836 A CN 115956836A CN 202111179589 A CN202111179589 A CN 202111179589A CN 115956836 A CN115956836 A CN 115956836A
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China
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collecting
mechanical
scraper
pneumatic
integrated
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CN202111179589.2A
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Chinese (zh)
Inventor
李其昀
田恒森
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Shandong University of Technology
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Shandong University of Technology
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Priority to CN202111179589.2A priority Critical patent/CN115956836A/en
Publication of CN115956836A publication Critical patent/CN115956836A/en
Pending legal-status Critical Current

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Abstract

The invention belongs to the technical field of agricultural machinery, and particularly relates to a mechanical and pneumatic integrated residual material recycling machine which comprises a collecting table 1, a conveying device 2, a cab 3, a driving wheel 4, an engine 5, a bin 6, a steering wheel 7, a weighing sensor 8, a material scattering scraper 9, scrapers and sweeping discs on two sides and a mechanical and pneumatic integrated collecting device, wherein the scrapers and the sweeping discs are positioned at the foremost end of a pneumatic recycling device; the middle of the scraper and the sweeping disc is provided with a mechanical and wind integrated collecting device, and the rear part of the scraper and the sweeping disc is provided with a conveying device to form a collecting workbench; the collecting working platform is lifted by a suspension device and a lifting device. The outer end flexibility cleans and the collection material that cleans of rapid and stable on a large scale before scraper blade, sweeping the integrative collection device of dish and mechanical wind-force's combination can realize, promotes the operating efficiency by a wide margin, cleans blade distribution through the difference and realizes the different high-efficient clean collection effect that cleans, reduces by a wide margin and cleans the material residual rate after retrieving.

Description

Mechanical and pneumatic integrated residual material recycling machine
Technical Field
The invention relates to a mechanical and pneumatic integrated residual material recycling machine, and belongs to the technical field of agricultural machinery.
Background
Toxic and harmful substances produced by mould or fungi have great influence on the dairy industry, and the current mycotoxins which threaten the animal husbandry most include aflatoxin, zearalenone and the like. Aflatoxins are produced primarily by aspergillus fungi (including aspergillus flavus and aspergillus parasiticus), have hepatotoxic (causing liver damage in animals), immunosuppressive, carcinogenic, teratogenic and mutagenic effects, and directly threaten the healthy development of animal husbandry. How to safely and healthily carry out cow breeding is the key of cow modern scientific breeding. The overdue feed is beneficial to the generation of mould or fungus, is a large enemy in the milk cow feeding process, and is one of key links to be solved for accurate feeding. At present, the collection of the residual materials of the Total Mixed Ration (TMR) every day is basically completed by manpower and auxiliary machines, the management target of accurate feeding is seriously influenced and restricted, and the problems of low labor efficiency, long period, unclean cleaning and the like are urgently needed to be solved by a device for cleaning and recovering the residual materials.
Under the background, under the condition of no reference of foreign experience, the invention combines the current research situation at home and abroad, mainly aims at the accurate feeding requirement, combines the Total Mixed Ration (TMR) technology, and performs the key research on the feeding residual (residual) material collection.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the mechanical and pneumatic integrated residual material recycling machine is capable of saving cost and improving efficiency and greatly improving production efficiency.
The invention relates to a mechanical and pneumatic integrated residual material recycling machine which comprises a collecting platform, a conveying device, a cab, a driving wheel, an engine, a storage bin, a steering wheel, a weighing sensor and a material spreading scraper plate, wherein the collecting platform is arranged on the cab; the method is characterized in that: the collecting table is positioned at the foremost end of the whole machine and consists of an elastic scraper, a main scraper, a scraper bracket, a hydraulic motor, a cleaning disc, a mechanical and wind integrated collecting device, a hydraulic motor and a contour wheel; the mechanical and wind power integrated collecting device consists of a collecting roller shaft, a collecting blade, a pneumatic driving blade and a pneumatic generating throwing plate; the elastic scraping plate is positioned at the most front end, the cleaning disc is arranged behind the main scraping plate and the elastic scraping plate at the two sides, and the mechanical and wind integrated collecting device is arranged behind the elastic scraping plate, the main scraping plate and the cleaning disc; the rear part is a cab, the rear part of the driving wheel is an engine, and the rear part of the engine is a storage bin and a rear steering wheel; a weighing sensor is arranged below the storage bin, the sensor is controlled by a control system in a cab and is connected with a feeding control center, the storage bin can be detected in real time, data sharing is achieved, and a data cloud is formed.
The mechanical and pneumatic integrated residual recycling machine is characterized in that the collecting table is positioned at the foremost end of the whole machine and consists of an elastic scraper, a main scraper, a scraper bracket, a hydraulic motor, a cleaning disc, a mechanical and wind integrated collecting device, a hydraulic motor and a contour wheel), wherein the elastic scraper, the main scraper, the scraper bracket, the hydraulic motor, the cleaning disc and the contour wheel are symmetrically arranged.
The mechanical and pneumatic integrated residual material recycling machine is characterized in that a mechanical and pneumatic integrated collecting device consists of a collecting roller shaft, a collecting blade, a pneumatic driving blade and a pneumatic generating and throwing plate; wherein the collecting blades are simply arranged in a distributed manner, spirally arranged in a distributed manner and in a curve manner, and one group of the collecting blades conforms to the formula of y =13.5X 4 +512.3X 3 +10.68X 2 +3.21X + 50.37.
The mechanical and wind power integrated collecting device is characterized in that the pneumatic driving blades are arranged according to the arrangement mode of the distribution curve of the collecting blades, and the pneumatic driving blades have a group of formulas which are y =1.3443X 2 Curve formed by curve family of-13.884X + 42.722.
The mechanical and wind power integrated collecting device is characterized in that the pneumatic generating and throwing plate is provided with a group of plates which conform to the formula of y = -6.3832X 2 Curve formed by curve group +116.15x + 17.8.
The mechanical and pneumatic integrated remainder reclaimer is characterized in that a group of material scattering scrapers in a storage bin conform to the formula of y = -6.1097X 2 +69.289X +138.02 curve family.
The mechanical and pneumatic integrated residual material recycling machine is characterized in that the collecting workbench is supported by the profiling mechanism to be profiled and adapt to the change of the ground height, the hanging device and the lifting device are used for lifting, the collecting workbench is in a landing state during working, and is in a lifting state when stopping working and walking in an empty state without ground contact.
The mechanical and pneumatic integrated residual material recycling machine is characterized in that the elastic scraping plates and the main scraping plates on the two sides are in an angle of +/-0-90 degrees with the vertical direction, the angle can be adjusted, the height is 0.01-100 meters, and the length is 0.01-100 meters; the elastic scraper is bent at an angle of +/-0-90 degrees, and the side of the elastic scraper close to the cowshed is subjected to profiling along the cowshed wall panel by the inner guide plate to avoid the elastic scraper from being blocked; the cleaning diameter of the cleaning disc is 0.01-100 m, the height of the cleaning disc from the ground can be adjusted within the range of 0-10 m, and the distance between the cleaning devices at the two sides is 0.1-100 m; the profiling mechanism 4 is in a wheel type, a sliding plate type or a belt type, and a transmission system adopts belt or chain transmission or gear transmission or hydraulic motor transmission.
The length of the collecting roller shaft of the mechanical and wind integrated collecting device is within the range of 0.001-100 meters, and the diameter of the collecting roller shaft is within the range of 0.001-100 meters; the outline size of the collecting blade is in the range of 0.001-100 meters; the number of the pneumatic driving blades is 0-1000, and the size is 0.001-100 m; the number of the pneumatic throwing plates is 0-100, and the size is 0.001-100 m.
The recovery device and the drive plate are arranged on the main frame, the main frame is arranged on the profiling mechanism, and the suspension arm and the lifting device are respectively arranged between the profiling mechanism and the main frame.
When the machine works, the machine moves forward, the scraper plates on two sides, the sweeping disc and the mechanical and wind power integrated collecting device in the middle simultaneously act on the rotating machinery and the wind power under the driving of the transmission device to clean and drive the residual (waste) materials to be concentrated to the middle channel of the machine, the residual (waste) materials are thrown to the elevator through the mechanical and wind power integrated collecting device and are conveyed to a storage bin through the elevator, a weighing sensor is arranged below the storage bin, the sensor is controlled by a control system in a cab and is connected with a feeding control center, the storage bin materials can be detected in real time, data sharing is realized, data clouds are formed, and the residual (waste) material collecting and automatic control processes are completed.
The invention has the beneficial effects that: the scraper blade, sweep the integrative collection device of dish and mechanical wind-force's combination can realize that the outer end is flexible cleans and clean the collection material with quick and stable on a large scale, promotes the operating efficiency by a wide margin, cleans the blade distribution through the difference and realizes the different high-efficient clean collection effect that cleans, reduces by a wide margin and cleans the material residual rate after retrieving. Tests show that compared with the existing recovery machine, the invention can improve the working efficiency by 8.7 percent, and particularly, a group of collecting blades of the mechanical and wind integrated collecting device adopts a group of collecting blades which accord with the formula of y =13.5X 4 +512.3X 3 +10.68X 2 The arrangement formula formed by the curve group of +3.21X +50.37 and the pneumatic driving blade adopt a group of conforming formulas of y =1.3443X 2 A curved surface formed by curves of-13.884X +42.722 and a pneumatic generation throwing plate adopt a group of formulas in accordance with y = -6.3832X 2 The curved surface three-group parameter equation formed by curve family of +116.15X +17.8 can improve the working efficiency by 13.2 percent and adoptsAfter the optimized rotating speed, the recycling and cleaning are ensured to be clean and tidy, dust flying is not caused to pollute the environment, the cleaning rate reaches more than 99.3 percent, and the effect is quite obvious. In addition, a group of material spreading scrapers (9) in the storage bin (6) conforms to the formula of y = -6.1097X 2 The power consumption of the curved surface formed by the curve family of +69.289X +138.02 is reduced by 7%, the unloading uniformity is improved by 30%, the overhead and blocking rate is 0%, and the effect is quite obvious.
Drawings
FIG. 1 is a front view of the present invention in a schematic configuration.
Fig. 2 is a schematic top view of the structure of fig. 1.
Fig. 3 is a schematic view of the structure of the collecting table.
Fig. 4 is a structural schematic diagram of the mechanical wind power integrated collecting device.
In the figure: 1. the device comprises a collecting table, 2 conveying devices, 3 a cab, 4 driving wheels, 5 an engine, 6 a storage bin, 7 steering wheels, 8 weighing sensors, 9 a material spreading scraper blade 10, an elastic scraper blade 11, a main scraper blade 12, a scraper blade bracket 13, a hydraulic motor 14, a cleaning disc 15, a mechanical and wind power integrated collecting device 16, a hydraulic motor 17, a profiling wheel 18, a collecting roller shaft 19, a collecting blade 20, a pneumatic driving blade 21 and a pneumatic generating throwing plate.
Detailed Description
The invention is further described below with reference to the accompanying drawings: as shown in figures 1 to 4, the mechanical-pneumatic integrated remainder recycling machine comprises a collecting table (1), a conveying device (2), a cab (3), a driving wheel (4), an engine (5), a bin (6), a steering wheel (7), a weighing sensor (8) and a material scattering scraper plate (9); the method is characterized in that: the collecting platform (1) is positioned at the foremost end of the whole machine and consists of an elastic scraper (10), a main scraper (11), a scraper bracket (12), a hydraulic motor (13), a cleaning disc (14), a mechanical and wind integrated collecting device (15), a hydraulic motor (16) and a contour wheel (17); the mechanical and wind integrated collecting device (15) consists of a collecting roller shaft (18), a collecting blade (19), a pneumatic driving blade (20) and a pneumatic generating throwing plate (21); the cleaning disc (14) is arranged behind the elastic scraper (10) and the main scraper (11) which are positioned at the two sides at the forefront end, and the mechanical and wind power integrated collecting device (15) is arranged behind the elastic scraper (10), the main scraper (11) and the cleaning disc (14); the back of the engine is a cab, the back of the driving wheel is an engine, and the back of the engine is a storage bin and a rear steering wheel.
The collecting platform (1) is located at the foremost end of the whole machine and consists of an elastic scraper (10), a main scraper (11), a scraper support (12), a hydraulic motor (13), a cleaning disc (14), a mechanical and wind integrated collecting device (15), a hydraulic motor (16) and a profiling wheel (17), wherein the elastic scraper (10), the main scraper (11), the scraper support (12), the hydraulic motor (13), the cleaning disc (14) and the profiling wheel (17) are symmetrically arranged.
The mechanical and wind integrated collecting device (15) consists of a collecting roller shaft (18), a collecting blade (19), a pneumatic driving blade (20) and a pneumatic generating throwing plate (21); wherein the collecting blades (19) are simply arranged in a distributed manner, spirally arranged in a distributed manner and in a curved manner, and one group of the collecting blades conforms to the formula of y =13.5X 4 +512.3X 3 +10.68X 2 +3.21X + 50.37.
The pneumatic driving blades (20) are arranged according to the distribution curve of the collecting blades (19), and the pneumatic driving blades (20) have a group of formulas y =1.3443X 2 Curve formed by curve family of-13.884X + 42.722.
The pneumatic generating and throwing plate (21) is provided with a group of plates which conform to the formula of y = -6.3832X 2 Curve formed by curve group +116.15x + 17.8.
The spreading scrapers (9) in the stock bin (6) are a group of scrapers conforming to the formula of y = -6.1097X 2 A curved surface formed by a curve family of +69.289X +138.02.
The collecting working table is supported by a profiling mechanism (4) to be profiled to adapt to the height change of the ground, is lifted by a hanging device and a lifting device, is in a descending state when in work, stops working and is in a lifting state when in empty running without being contacted with the ground.
When the machine works, the machine moves forward, the elastic scrapers (10) on two sides, the main scraper (11), the cleaning disc (14) and the middle mechanical and wind power integrated collecting device (15) are driven by the transmission device to simultaneously clean and drive the residual (waste) materials to be concentrated in the middle of the machine under the driving of the transmission device, the residual (waste) materials are thrown to the conveying device (2) through the mechanical and wind power integrated collecting device and are conveyed to the storage bin (6) through the conveying device (2), the weighing sensor (8) is arranged below the storage bin (6), the weighing sensor (8) is controlled by a control system in the cab (3) and is butted with a feeding control center, the storage materials in the storage bin (6) can be detected in real time, data sharing is realized, data cloud is formed, and the residual (waste) material collecting and automatic control processes are completed.
Referring to fig. 1-4, the elastic scrapers (10) and the main scrapers (11) at two sides of the broom form an angle of +/-0-90 degrees with the vertical direction, the angle can be adjusted, the height is 0.01-100 meters, and the length is 0.01-100 meters; the elastic scraper (10) is bent at an angle of +/-0-90 degrees, and the side of the elastic scraper (10) close to the cowshed is subjected to profiling along the cowshed wall panel by the inner guide plate to avoid the elastic scraper from being blocked; the cleaning diameter of the cleaning disc (14) is 0.01-100 m, the height of the cleaning disc from the ground can be adjusted within the range of 0-10 m, and the distance between the cleaning devices at the two sides is 0.1-100 m; the profiling mechanism 4 is in a wheel type, a sliding plate type or a belt type, and a transmission system adopts belt or chain transmission or gear transmission or hydraulic motor transmission.
The length of the collecting roller shaft (18) is in the range of 0.001-100 meters, and the diameter is in the range of 0.001-100 meters; the outline size of the collecting blade (19) is in the range of 0.001-100 meters; the number of the pneumatic driving blades (20) is 0-1000, and the size is 0.001-100 meters; the number of the pneumatic generating throwing plates (21) is 0-100, and the size is 0.001-100 meters.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims.

Claims (9)

1. A mechanical and pneumatic integrated residual material recycling machine comprises a collecting platform (1), a conveying device (2), a cab (3), a driving wheel (4), an engine (5), a storage bin (6), a steering wheel (7), a weighing sensor (8) and a material spreading scraper (9); the method is characterized in that: the collecting platform (1) is positioned at the foremost end of the whole machine and consists of an elastic scraper (10), a main scraper (11), a scraper bracket (12), a hydraulic motor (13), a cleaning disc (14), a mechanical and wind integrated collecting device (15), a hydraulic motor (16) and a profiling wheel (17); the mechanical and wind integrated collecting device (15) consists of a collecting roller shaft (18), a collecting blade (19), a pneumatic driving blade (20) and a pneumatic generating throwing plate (21); the cleaning disc (14) is arranged behind the elastic scraper (10) and the main scraper (11) which are positioned at the two sides at the forefront end, and the mechanical and wind power integrated collecting device (15) is arranged behind the elastic scraper (10), the main scraper (11) and the cleaning disc (14); the back is a cab, the back of the driving wheel is an engine, and the back of the engine is a storage bin and a rear steering wheel.
2. The mechanical-pneumatic integrated residual recycling machine according to claim 1, characterized in that: the collecting platform (1) is located at the foremost end of the whole machine and consists of an elastic scraper (10), a main scraper (11), a scraper support (12), a hydraulic motor (13), a cleaning disc (14), a mechanical and wind integrated collecting device (15), a hydraulic motor (16) and a profiling wheel (17), wherein the elastic scraper (10), the main scraper (11), the scraper support (12), the hydraulic motor (13), the cleaning disc (14) and the profiling wheel (17) are symmetrically arranged.
3. The mechanical-pneumatic integrated remainder recycling machine according to claim 1, characterized in that: the mechanical and wind integrated collecting device (15) consists of a collecting roller shaft (18), a collecting blade (19), a pneumatic driving blade (20) and a pneumatic generating throwing plate (21); wherein the collecting blades (19) are arranged in a simple distribution manner, a spiral line distribution manner and a curve distribution manner, and one group of the collecting blades conforms to the formula of y =13.5X 4 +512.3X 3 +10.68X 2 +3.21X + 50.37.
4. Mechanical wind integral collection device (15) according to claim 3, characterized in that: the pneumatic driving blades (20) are arranged according to the distribution curve of the collecting blades (19), and the pneumatic driving blades (20) have a group of formulas y =1.3443X 2 Curve formed by curve family of-13.884X + 42.722.
5. Mechanical wind integral collection device (15) according to claim 3, characterized in that: the pneumatic generating and throwing plate (21) is provided with a group of plates which conform to the formula of y = -6.3832X 2 +116.15X +17.8 curve family.
6. The mechanical-pneumatic integrated remainder recycler of claim 1, comprising: the spreading scrapers (9) in the storage bin (6) are a group of spreading scrapers (9) which conform to the formula of y = -6.1097X 2 +69.289X +138.02 curve family.
7. The mechanical-pneumatic integrated remainder recycling machine according to claim 1, characterized in that: the collecting working platform is supported by the profiling mechanism (4) to be profiled to adapt to the height change of the ground, is lifted by the hanging device and the lifting device, is in a descending state when in work, and is in a lifting state when in stop work and empty vehicle walking without being contacted with the ground.
8. The mechanical-pneumatic integrated residual recycling machine according to claim 1, characterized in that: the elastic scrapers (10) and the main scrapers (11) on the two sides form an angle of +/-0-90 degrees with the vertical direction, the angle can be adjusted, the height is 0.01-100 meters, and the length is 0.01-100 meters; the elastic scraper (10) is bent at an angle of +/-0-90 degrees, and the side of the elastic scraper (10) close to the cowshed is subjected to profiling along the cowshed wall panel by the inner guide plate to avoid the elastic scraper from being blocked; the cleaning diameter of the cleaning disc (14) is 0.01-100 m, the height of the cleaning disc from the ground can be adjusted within the range of 0-10 m, and the distance between the cleaning devices at the two sides is 0.1-100 m; the profiling mechanism 4 is in a wheel type, a sliding plate type or a belt type, and a transmission system adopts belt or chain transmission or gear transmission or hydraulic motor transmission.
9. Mechanical wind integral collection device (15) according to claim 3, characterized in that: the length of the collecting roller shaft (18) is in the range of 0.001-100 meters, and the diameter is in the range of 0.001-100 meters; the profile size of the collecting blade (19) is in the range of 0.001-100 m; the number of the pneumatic driving blades (20) is 0-1000, and the size is 0.001-100 meters; the number of the pneumatic generating throwing plates (21) is 0 to 100, and the size is 0.001 to 100 meters.
CN202111179589.2A 2021-10-09 2021-10-09 Mechanical and pneumatic integrated residual material recycling machine Pending CN115956836A (en)

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CN202111179589.2A CN115956836A (en) 2021-10-09 2021-10-09 Mechanical and pneumatic integrated residual material recycling machine

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CN202111179589.2A CN115956836A (en) 2021-10-09 2021-10-09 Mechanical and pneumatic integrated residual material recycling machine

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CN115956836A true CN115956836A (en) 2023-04-14

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2776642A1 (en) * 1998-03-27 1999-10-01 Toy Transport, grinding, mixing and pneumatic delivery of powdered animal feeds
CN201137051Y (en) * 2007-12-18 2008-10-22 辽宁永昌环境清洁设备制造有限公司 Energy-saving environment-friendly manpower cleaning car
CN203206897U (en) * 2013-04-12 2013-09-25 池上剑 Feed recovery tank
EP2690220A1 (en) * 2012-07-24 2014-01-29 Hako GmbH Vacuum cleaning machine with a suction device for a side broom
CN105247990A (en) * 2015-11-11 2016-01-20 新疆农垦科学院 Throwing pneumatic mulching film recovery operation machine
CN205082146U (en) * 2015-11-11 2016-03-16 新疆农垦科学院 Pneumatic plastic film recovery work is sent machine in throwing
CN208065128U (en) * 2017-09-08 2018-11-09 集光(上海)环境技术有限公司 A kind of brush head mechanism
CN110304458A (en) * 2019-08-01 2019-10-08 山东理工大学 A kind of strength suction and conveying formula material collection equipment
CN110432836A (en) * 2019-07-28 2019-11-12 山东理工大学 A kind of surplus (residual) material reclaimer of intelligence strength suction and conveying formula
CN110583504A (en) * 2019-10-28 2019-12-20 山东新希望六和集团有限公司 Device for automatically sucking and weighing feed
CN111250479A (en) * 2020-01-16 2020-06-09 淄博翔宇机械有限公司 Compact pneumatic suction conveying type residual material recycling vehicle
CN211355238U (en) * 2019-12-30 2020-08-28 承运建工集团有限公司 Automatic waste collecting device for house building construction

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2776642A1 (en) * 1998-03-27 1999-10-01 Toy Transport, grinding, mixing and pneumatic delivery of powdered animal feeds
CN201137051Y (en) * 2007-12-18 2008-10-22 辽宁永昌环境清洁设备制造有限公司 Energy-saving environment-friendly manpower cleaning car
EP2690220A1 (en) * 2012-07-24 2014-01-29 Hako GmbH Vacuum cleaning machine with a suction device for a side broom
CN203206897U (en) * 2013-04-12 2013-09-25 池上剑 Feed recovery tank
CN105247990A (en) * 2015-11-11 2016-01-20 新疆农垦科学院 Throwing pneumatic mulching film recovery operation machine
CN205082146U (en) * 2015-11-11 2016-03-16 新疆农垦科学院 Pneumatic plastic film recovery work is sent machine in throwing
CN208065128U (en) * 2017-09-08 2018-11-09 集光(上海)环境技术有限公司 A kind of brush head mechanism
CN110432836A (en) * 2019-07-28 2019-11-12 山东理工大学 A kind of surplus (residual) material reclaimer of intelligence strength suction and conveying formula
CN110304458A (en) * 2019-08-01 2019-10-08 山东理工大学 A kind of strength suction and conveying formula material collection equipment
CN110583504A (en) * 2019-10-28 2019-12-20 山东新希望六和集团有限公司 Device for automatically sucking and weighing feed
CN211355238U (en) * 2019-12-30 2020-08-28 承运建工集团有限公司 Automatic waste collecting device for house building construction
CN111250479A (en) * 2020-01-16 2020-06-09 淄博翔宇机械有限公司 Compact pneumatic suction conveying type residual material recycling vehicle

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