CN110539680A - Self-discharging structure of compartment type truck carriage - Google Patents
Self-discharging structure of compartment type truck carriage Download PDFInfo
- Publication number
- CN110539680A CN110539680A CN201911001706.9A CN201911001706A CN110539680A CN 110539680 A CN110539680 A CN 110539680A CN 201911001706 A CN201911001706 A CN 201911001706A CN 110539680 A CN110539680 A CN 110539680A
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- China
- Prior art keywords
- push plate
- carriage
- bending
- door
- push
- 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.)
- Pending
Links
- 238000007599 discharging Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000005452 bending Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 10
- 238000009825 accumulation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/006—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading charge and discharge with pusher plates
Abstract
The invention relates to a self-discharging structure of a compartment type wagon carriage, which comprises a bending push plate mechanism and a sealing soft belt; the bending push plate mechanisms are symmetrically arranged in the inner cavity of the carriage, each symmetrical side comprises a bottom push plate and a side push plate which are hinged, the side push plates are tightly attached to each other when the bending push plate mechanisms are contracted, the bottom push plates are close to the bottom plane of the carriage, so that a large space is formed, and the outer sides of the bottom push plates extend out of the carriage laterally when the bending push plate mechanisms are expanded, so that materials are prevented from being accumulated at wheels; the sealing soft belt is arranged at the gap position at the hinged position of the bending push plate mechanism to prevent material leakage. The invention achieves the following beneficial effects: the internal space is large, the unloaded materials are not accumulated at the wheel, the fine materials are not leaked, the action is simple, and the safety is high.
Description
Technical Field
The invention relates to the technical field of automatic unloading of trucks, in particular to a self-unloading structure of a compartment type truck carriage.
Background
In a truck with a self-discharging function, a hydraulic ejector rod is commonly used for realizing the function.
The most common in life is that the rear part of the carriage is hinged, and a hydraulic ejector rod, such as a mine car, a tractor and the like, is arranged below the front part of the carriage. However, for some trucks with longer cars, this design cannot be used because the car length is long and there must be a large enough elevation angle for complete unloading, which requires the hydraulic rams to be long enough and, if too long, can easily cause buckling during jacking. Therefore, in life, the trucks with longer carriages mostly adopt a manual unloading mode.
The manner in which manual unloading is possible is inconvenient. To solve this problem, some companies have devised a method of side discharge. One mode is a side tipping mode, but is easy to unbalance, the center of gravity of the truck is not easy to control when the truck unloads, and the safety accident of vehicle rollover can occur. In addition, the discharging mechanism is arranged in the carriage, but the carriage easily occupies a large space, and the whole discharging mechanism is difficult to act due to the long carriage; moreover, there are often gaps in the discharge mechanism through which fine material leaks during loading. Moreover, the two discharging modes can lead to the accumulation of materials at the wheel and the accumulation of the wheel, and when the vehicle starts to run again, the materials can block the wheel, so that the starting is difficult. Some companies design modes such as deflector of unloading in order to solve the wheel and pack up, but the structure is complicated to need artifical supplementary could accomplish, very inconvenient.
Due to these and other drawbacks, similar designs are less common in the market today.
The company is dedicated to research and development of the novel truck, and breaks through the traditional technology to meet the requirements of different customers. On the basis of absorbing the experience of a plurality of previous self-discharging goods trains, a novel self-discharging structure is designed according to the feedback of customers, the emphasis is placed on ensuring that the inner space is large, the vehicle is stable and safe when discharging, the discharged materials are not accumulated at the wheel, the fine materials can not leak, the discharging mode is also ensured to be simple and practical, and the whole structure cannot be too complex.
Meanwhile, the carriage is improved according to the problems that most of long carriage materials are difficult to unload cleanly, the unloading speed is low, a plurality of oil cylinders are poor in synchronism during working, the unloading is difficult and the like, and the carriage is designed into a bin type wagon carriage, so that the materials are unloaded in different bins.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a self-discharging structure of a bin-divided type wagon carriage, which has the advantages of large internal space, no accumulation of discharged materials at wheels, no leakage of fine materials, simple action and high safety.
The purpose of the invention is realized by the following technical scheme: the self-discharging structure of the compartment type boxcar comprises a bending push plate mechanism and a sealing soft belt;
the bending push plate mechanisms are symmetrically arranged in the inner cavity of the carriage, each symmetrical side comprises a bottom push plate and a side push plate which are hinged, the bottom push plates and the side push plates are part of the wall of the carriage, the side push plates are tightly attached to each other when the carriage is contracted, the bottom push plates are close to the bottom plane of the carriage to form a large space, and the outer sides of the bottom push plates extend out of the carriage when the carriage is expanded so as to prevent materials from being accumulated at wheels;
the sealing soft belt is arranged at the gap position at the hinged position of the bending push plate mechanism to prevent material leakage.
Still include the door push rod, set up between the side door of end push pedal and carriage, push pedal mechanism opens the side door through end push pedal is automatic when buckling.
furthermore, the door push rod is an adjustable telescopic rod.
Furthermore, the truck comprises a frame, a bottom cross beam is fixed on the frame, rollers are arranged on the two sides of the bottom plane of the carriage on the bottom cross beam, and the bottom surface of the bottom push plate slides on the rollers when the bottom push plate extends out along the lateral direction.
Furthermore, the bottom surface of the bottom push plate is provided with a supporting slide rail, the roller rolls along the supporting slide rail, and the bottom push plate is prevented from generating position deviation along the front and rear directions of the vehicle.
Furthermore, the bending push plate mechanism is stretched and unfolded by a telescopic hydraulic oil cylinder arranged between the bottom of the bending push plate mechanism and the bottom cross beam.
Furthermore, a supporting hanging bracket for supporting is arranged at the upper part of the inner cavity of the carriage, and the upper end of the side push plate is hinged on the supporting hanging bracket.
Furthermore, a plurality of material compartments are arranged in the carriage along the front-back direction, a self-discharging structure is arranged in each material compartment, and each material compartment is divided into a left volume bin and a right volume bin by a bent push plate mechanism.
Preferably, the carriage is divided into a front material carriage and a rear material carriage by a partition plate; and flexible sealing strips are fixed on the contact surfaces of the bottom push plate and the side push plates which slide relative to the front wall and the rear wall of the material saving box.
Furthermore, the upper end surfaces of the supporting hanging bracket and the partition plate are provided with angular distribution beams for preventing materials from being accumulated, and the angle of each angular distribution beam is larger than 45 degrees.
The invention has the following advantages:
(1) the traditional carriage structure is improved, the bottom push plate and the side push plate form a part of a carriage wall, so that the bottom push plate and the side push plate form a material containing bin for loading materials when the bottom push plate and the side push plate are contracted, the bottom push plate and the side push plate play a role of a material discharging plate when the bottom push plate and the side push plate are expanded, the bottom push plate and the side push plate are part of the carriage, and a large loading space is ensured;
(2) The bottom push plate can extend out of the carriage through the design of the roller and the supporting slide rail, when materials slide off the bottom push plate, the materials are far away from the wheels, the wheels cannot be buried and wrapped, and the problem that the vehicle is difficult to start after unloading is solved; the design of the supporting slide rail also avoids the position deviation of the bottom push plate along the front and rear directions of the vehicle;
(3) The arrangement of the door push rod and the structure thereof can adjust the opening and closing proportion of the side door, and solves the risk caused by instantaneous large-scale leakage of materials due to violent opening of the door; meanwhile, the mode that the door can be opened and closed only through traditional mechanisms such as an oil cylinder, an air cylinder and the like is replaced, and the structure is simplified;
(4) through designing into the carriage multisection material railway carriage or compartment to every material railway carriage or compartment has two volume storehouses again, is about to traditional carriage or compartment and has divided into a plurality of parts, and a telescopic hydraulic cylinder corresponds jack-up a part, has reduced the weight that telescopic hydraulic cylinder bore, the risk that the deformation of can not appearing bending, has improved the security.
Drawings
FIG. 1 is a schematic structural view of the present invention in an unfolded and unloaded state;
FIG. 2 is a schematic structural view of the present invention in a contracted charge state;
FIG. 3 is a schematic view of the structure of the bottom pusher when the bending pusher mechanism is unfolded;
FIG. 4 is a schematic side view of the vehicle compartment;
FIG. 5 is a schematic structural view of a top view of the vehicle;
FIG. 6 is a schematic view of the configuration of the angled feed beam on the support hanger and the spacer;
in the figure: 1-roller, 2-oil cylinder lower support, 3-bottom push plate, 4-side push plate, 5-upper hinge joint, 6-support hanger, 7-carriage inner cavity, 8-lower hinge joint, 9-sealing soft belt, 10-door push rod upper support, 11-door push rod lower support, 12-door push rod, 13-telescopic hydraulic oil cylinder, 14-oil cylinder upper support, 15-door hinge joint, 16-side door, 17-carriage body, 18-vehicle frame, 19-bottom cross beam, 20-support sliding rail, 21-material saving carriage, 22-volume bin, 23-oil cylinder lower support, 24-partition plate and 25-angular material dividing beam.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
as shown in fig. 1, the dump body structure of the bin-divided truck bed is provided with a bottom cross member 19 on a frame 18, a bed body 17 is placed on the cross member 19, and a dump body structure is provided in a bed cavity 7 of the bed body 17.
in the car body 17, a multi-sectional material compartment 21 is provided in the front-rear direction, and side doors 16 are hinged to both sides of the material compartment 21 by door hinges 15 (see fig. 3, 4, and 5). Each material-saving box 21 is provided with a self-discharging structure. Preferably, the compartment is separated by a partition 24 to form the material compartment 21.
the self-discharging structure comprises a bending push plate mechanism and a sealing soft belt 9, as shown in fig. 3, 4 and 5. The bending push plate mechanism is of a symmetrical structure and comprises two bottom push plates 3 and two side push plates 4, and the bottom push plates 3 and the side push plates 4 form the wall of a carriage; the push plates 4 on the two sides are vertically placed, the upper edges of the push plates are hinged to the top of the carriage through upper hinges 5, the lower edges of the push plates are hinged to the inner edges of the bottom push plates 3 through lower hinges 8, and the other edges of the bottom push plates 3 are in a free state. A telescopic hydraulic oil cylinder 13 is also hinged between the bottom cross beam 19 and the bottom surface of the bottom push plate 3. When telescopic hydraulic cylinder 13 retraction formula, be in the charged state, the side push pedal 4 and the end push pedal 3 of every side are "L" form this moment, and the side push pedal 4 of the left and right sides pastes tightly, and the carriage base plane is pressed close to end push pedal 3 simultaneously, forms big space. When the telescopic hydraulic oil cylinder 13 extends out, the discharging state is realized, at the moment, the outer edge of the bottom push plate 3 extends out of the carriage, and the side push plate 4 is in an inclined state under the driving of the bottom push plate 3, so that the repose angle of materials is changed, and the discharging purpose is realized.
Namely, the material box 21 is divided into a left volume cavity and a right volume cavity by the bending push plate mechanism; when the bottom push plate 3 and the side push plate 4 are in an L shape, a charging cavity is formed, and the bottom push plate and the side push plate can be used as a push plate for discharging when being unfolded. Thus, a large space for charging can be made as much as possible.
In this embodiment, a supporting hanger 6 is further disposed at the top of the carriage cavity 7, and the side push plate 4 is hinged to the supporting hanger 6 through an upper hinge 5.
Furthermore, one end of the telescopic hydraulic oil cylinder 13 is hinged with an oil cylinder lower support 23, and the oil cylinder lower support 23 is fixed on the bottom cross beam 19; the other end of the telescopic hydraulic oil cylinder 13 is hinged with an oil cylinder upper support 14, and the oil cylinder upper support 14 is fixed on the bottom surface of the bottom push plate 3.
As shown in fig. 3, the outer edge of the bottom beam 19 is provided with a roller 1, the rolling surface of the roller 1 is provided with a groove, the bottom surface of the bottom push plate 3 is provided with a support slide rail 20, the roller 1 slides along the support slide rail 20 through the groove when the bottom push plate 3 extends out, and the support slide rail 20 can prevent the bottom push plate 3 from shifting along the front and rear direction.
as shown in fig. 1 and 3, in order to prevent fine material from leaking in the bent push plate mechanism, a sealing soft band 9 for sealing the gap is provided at the lower hinge 8. No matter what position states the side push plate 4 and the bottom push plate 3 are, leakage can not occur all the time.
In this scheme, still be provided with door push rod 12, the one end of door push rod 12 is articulated with door push rod upper bracket 10, and door push rod 10 is fixed on the inside wall of side door 16, and the other end of door push rod 12 is articulated with door push rod undersetting 11, and door push rod undersetting 11 is fixed on the upper surface of end push pedal 3. When the bottom push plate 3 extends, the side door 16 can be automatically pushed open by the door push rod 12.
In order to adapt to different conditions, the door push rod 12 is designed into a form capable of adjusting the length and comprises a short pipe, a long pipe and a long shaft, wherein the short pipe and the long pipe are provided with internal threads, the long shaft is provided with external threads, one end of the short pipe is hinged with the lower support 11 of the door push rod, the other end of the short pipe is screwed with one end of the long pipe, one end of the long shaft is hinged on the upper support 10 of the door push rod, and the other end of the long shaft is screwed into the other. When the length is adjusted, the locking nut is unscrewed, the screwing length of the long shaft in the long pipe is adjusted, and finally the locking nut is screwed.
The structural design of the door push rod 12 is to open the side door 16 according to the moving amount of the bottom push plate 3 in proportion, and to close the side door 16 in the same way, so that the opening and closing proportion of the side door 16 can be adjusted to the best, and the risk caused by the fact that a large amount of materials are leaked due to the fact that the side door 16 is opened suddenly is solved. And replaces the operation that the door can be opened and closed only by mechanisms such as an oil cylinder, an air cylinder and the like.
In this embodiment, as shown in fig. 6, an angular feed beam 25 is provided along the upper end surfaces of the support hanger 6 and the partition 24, preferably at an angle greater than 45 °. When the materials are loaded at the top, the materials can be randomly distributed to each bin; during discharge, material is prevented from accumulating above support cradle 6 and partition 24.
in the present embodiment, taking the material compartment 21 at the rear of the vehicle as an example, the bottom push plate 3, the side push plate 4, the rear wall of the compartment, the partition plate 24, and the side door 16 form the material compartment 21, but the top is in an open state. Therefore, the bottom push plate 3 and the side push plate 4 slide relative to the rear wall of the carriage and the partition plate 24, and material leaks from gaps among the bottom push plate and the side push plate; therefore, a flexible sealing strip is arranged on the contact surface corresponding to the bottom push plate 3 and the side push plate 4, the sealing effect is achieved when the materials slide in a friction mode, and the rubber strip, the resin strip and the like which are high in strength and have certain flexibility are selected for use when the materials are selected.
Claims (10)
1. Divide storehouse formula boxcar from unloading structure, its characterized in that: comprises a bending push plate mechanism and a sealing soft belt (9);
The bending push plate mechanisms are symmetrically arranged in the inner cavity (7) of the carriage, each symmetrical side comprises a bottom push plate (3) and a side push plate (4) which are hinged, the bottom push plates (3) and the side push plates (4) are part of the wall of the carriage, the side push plates (4) are tightly attached to each other when the carriage is contracted, the bottom push plates (3) are close to the bottom plane of the carriage to form a large space, and the outer sides of the bottom push plates (3) laterally extend out of the carriage when the carriage is expanded to prevent materials from being accumulated at wheels;
the sealing soft belt (9) is arranged at the gap position of the hinged position of the bending push plate mechanism to prevent the leakage of materials.
2. The self-discharging structure of a split-bin boxcar according to claim 1, wherein: the folding push plate mechanism is characterized by further comprising a door push rod (12) which is arranged between the bottom push plate (3) and a side door (16) of the carriage, and the side door (16) is automatically pushed open through the bottom push plate (3) when the folding push plate mechanism is unfolded.
3. The hopper car dumper structure of claim 2, wherein: the door push rod (12) is an adjustable telescopic rod.
4. The hopper car dumper structure of claim 2, wherein: the wagon comprises a wagon frame (18), a bottom cross beam (19) is fixed on the wagon frame (18), rollers (1) are arranged on the bottom cross beam (19) at two sides of the bottom plane of the wagon, and the bottom surface of a bottom push plate (3) slides on the rollers (1) when the bottom push plate extends out along the lateral direction.
5. The hopper car dumper structure of claim 4 wherein: the bottom surface of the bottom push plate (3) is provided with a supporting slide rail (20), the roller (1) rolls along the supporting slide rail (20), and the bottom push plate (3) is prevented from shifting along the front and rear direction of the vehicle.
6. The hopper car dumper structure of claim 5, wherein: the bending push plate mechanism is stretched and unfolded by a telescopic hydraulic oil cylinder (13) arranged between the bottom of the bending push plate mechanism and a bottom cross beam (19).
7. The hopper car dumper structure of claim 6 wherein: the upper part of the carriage inner cavity (7) is provided with a supporting hanging bracket (6) for supporting, and the upper end of the side push plate (4) is hinged on the supporting hanging bracket (6).
8. The self-discharging structure of the chamber-divided wagon carriage as claimed in any one of claims 1 to 7, wherein: the carriage is provided with a plurality of material compartments (21) along the front-back direction, each material compartment (21) is internally provided with a self-discharging structure, and each material compartment (21) is divided into a left volume bin and a right volume bin (22) by a bending push plate mechanism.
9. The hopper car dumper structure of claim 8, wherein: the carriage is divided into a front material carriage and a rear material carriage (21) by a partition plate (24);
flexible sealing strips are fixed on the contact surfaces of the bottom push plate (3) and the side push plate (4) which slide relative to the front wall and the rear wall of the material saving box (21).
10. The hopper car dumper structure of claim 9 wherein: the upper end surfaces of the supporting hanger (6) and the clapboard (24) are provided with angular distribution beams (25) for preventing materials from being accumulated, and the angle of each angular distribution beam (25) is larger than 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911001706.9A CN110539680A (en) | 2019-10-21 | 2019-10-21 | Self-discharging structure of compartment type truck carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911001706.9A CN110539680A (en) | 2019-10-21 | 2019-10-21 | Self-discharging structure of compartment type truck carriage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110539680A true CN110539680A (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911001706.9A Pending CN110539680A (en) | 2019-10-21 | 2019-10-21 | Self-discharging structure of compartment type truck carriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110539680A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347954A (en) * | 2020-01-18 | 2020-06-30 | 谢星 | Self-unloading mechanism of van truck for logistics transportation |
| CN111976572A (en) * | 2020-07-13 | 2020-11-24 | 菏泽三垒塑业股份有限公司 | Special self-rotating conveying vehicle for large-diameter pipes |
| CN113212279A (en) * | 2021-06-04 | 2021-08-06 | 天津市图强专用汽车制造有限公司 | Conveyer belt push pedal discharge apparatus |
| CN114521497A (en) * | 2022-01-27 | 2022-05-24 | 上海同臣环保有限公司 | Sequencing batch stacking static aerobic fermentation feeding process |
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| US5749630A (en) * | 1996-06-07 | 1998-05-12 | Ung; Lu-Hsiung | Gravity unloading mechanism |
| CN2910678Y (en) * | 2006-05-29 | 2007-06-13 | 山东临清迅力特种汽车有限公司 | Tank assemby of novel tip-truck |
| CN201342977Y (en) * | 2008-12-17 | 2009-11-11 | 三河市新宏昌专用车有限公司 | Split self-discharging wagon carriage |
| CN102975646A (en) * | 2011-09-07 | 2013-03-20 | 中集车辆（集团）有限公司 | Dump truck and car thereof |
| KR20130059820A (en) * | 2011-11-29 | 2013-06-07 | 한국철도기술연구원 | Door device of hopper-type container |
| CN108297949A (en) * | 2018-04-04 | 2018-07-20 | 邯郸市肥乡区远达车辆制造有限公司 | A kind of varus self-tipping type storehouse grid semitrailer |
| CN209395907U (en) * | 2018-11-30 | 2019-09-17 | 扬州通海专用车配件有限公司 | A kind of self-tipping type semitrailer carriage |
| CN211493785U (en) * | 2019-10-21 | 2020-09-15 | 成都创奇汽车制造有限公司 | Self-discharging structure of compartment type truck carriage |
-
2019
- 2019-10-21 CN CN201911001706.9A patent/CN110539680A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5749630A (en) * | 1996-06-07 | 1998-05-12 | Ung; Lu-Hsiung | Gravity unloading mechanism |
| CN2910678Y (en) * | 2006-05-29 | 2007-06-13 | 山东临清迅力特种汽车有限公司 | Tank assemby of novel tip-truck |
| CN201342977Y (en) * | 2008-12-17 | 2009-11-11 | 三河市新宏昌专用车有限公司 | Split self-discharging wagon carriage |
| CN102975646A (en) * | 2011-09-07 | 2013-03-20 | 中集车辆（集团）有限公司 | Dump truck and car thereof |
| KR20130059820A (en) * | 2011-11-29 | 2013-06-07 | 한국철도기술연구원 | Door device of hopper-type container |
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| CN211493785U (en) * | 2019-10-21 | 2020-09-15 | 成都创奇汽车制造有限公司 | Self-discharging structure of compartment type truck carriage |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347954A (en) * | 2020-01-18 | 2020-06-30 | 谢星 | Self-unloading mechanism of van truck for logistics transportation |
| CN111976572A (en) * | 2020-07-13 | 2020-11-24 | 菏泽三垒塑业股份有限公司 | Special self-rotating conveying vehicle for large-diameter pipes |
| CN113212279A (en) * | 2021-06-04 | 2021-08-06 | 天津市图强专用汽车制造有限公司 | Conveyer belt push pedal discharge apparatus |
| CN113212279B (en) * | 2021-06-04 | 2022-06-21 | 天津市图强专用汽车制造有限公司 | Conveyer belt push pedal discharge apparatus |
| CN114521497A (en) * | 2022-01-27 | 2022-05-24 | 上海同臣环保有限公司 | Sequencing batch stacking static aerobic fermentation feeding process |
| CN114521497B (en) * | 2022-01-27 | 2022-12-30 | 上海同臣环保有限公司 | Sequencing batch stacking static aerobic fermentation feeding process |
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