CN209806504U - Smashing device of straw bag breaking pulverizer - Google Patents
Smashing device of straw bag breaking pulverizer Download PDFInfo
- Publication number
- CN209806504U CN209806504U CN201822180571.4U CN201822180571U CN209806504U CN 209806504 U CN209806504 U CN 209806504U CN 201822180571 U CN201822180571 U CN 201822180571U CN 209806504 U CN209806504 U CN 209806504U
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- cutter shaft
- crescent
- cutter
- main
- knife
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Abstract
A crushing device of a straw bale breaking crusher comprises the following components: main arbor (1), vice arbor (2), cutter sleeve (3), blade holder (4), crescent knife (5), frame (7), motor, wherein: the main cutter shaft (1) is connected with a motor and is in transmission connection with the motor through a belt, the main cutter shaft (1) and the auxiliary cutter shaft (2) are connected through a transmission component, the axes of the main cutter shaft (1) and the auxiliary cutter shaft (2) are arranged in parallel, and a plane formed by the axes of the main cutter shaft and the auxiliary cutter shaft and the bottom surface of the rack (7) are horizontal planes; the two cutter shaft sleeves (3) are tubular parts and are respectively sleeved on the main cutter shaft (1) and the auxiliary cutter shaft (2); the crescent knives (5) are provided with a plurality of handles which are respectively arranged on the knife blocks (4), and the knife blocks (4) which correspond to the crescent knives (5) so as to be convenient for the installation of the crescent knives are fixedly arranged on the outer side surface of the knife shaft sleeve (3). The utility model relates to a rationally, compact structure smashes effectually, and is not fragile.
Description
Technical Field
The utility model belongs to the technical field of agricultural machine, concretely relates to broken package rubbing crusher's of straw reducing mechanism.
Background
The crop straw collection is generally in a packing form, when the straw is comprehensively utilized, the packed straw needs to be broken and crushed, and the current domestic breaking and crushing mills are in a chip type, so that the crushing efficiency is low, the hammer is easy to wear, and the dust removal effect is poor; the invention adopts the low-rotating-speed fixed crescent blade to cut in multiple directions and is provided with the crushing device integrating crushing and dust removal.
To this end, the applicant has developed a straw bale breaker in which the straw breaking device is a very important component that directly determines the performance of the plant, while the breaker knife is the main component of the straw breaking system, the structure of which needs to be designed reasonably.
Disclosure of Invention
An object of the utility model is to provide a smashing device of broken package rubbing crusher of straw, its reasonable in design, compact structure smashes effectually, and is not fragile.
The utility model relates to a smashing device of straw bale breaking pulverizer, its characterized in that: the structure is as follows: main arbor 1, vice arbor 2, cutter arbor sleeve 3, blade holder 4, crescent knife 5, frame 7, motor, wherein: the main cutter shaft 1 is connected with a motor for driving the main cutter shaft 1, the main cutter shaft 1 and the auxiliary cutter shaft 2 are in transmission connection through a belt, the axes of the main cutter shaft 1 and the auxiliary cutter shaft 2 are arranged in parallel, and a plane formed by the axes of the main cutter shaft 1 and the auxiliary cutter shaft 2 and the bottom surface of the rack 7 are horizontal planes; the two cutter shaft sleeves 3 are tubular parts and are respectively sleeved on the main cutter shaft 1 and the auxiliary cutter shaft 2; the crescent knives 5 are provided with a plurality of handles which are respectively arranged on the knife blocks 4, and the knife blocks 4 which are used for corresponding to each crescent knife 5 so as to be convenient for installation are fixedly arranged on the outer side surface of the knife shaft sleeve 3.
The crushing device of the straw bale breaking crusher preferably requires protection of the following contents:
with reference to fig. 3, the arrangement of the insert seat 4 on the insert pocket 3 meets the following requirements: the tool apron 4 is divided into two groups, each group of four spiral lines, the tool apron 4 is distributed on the outer side surface of the tool shaft sleeve 3 along the spiral lines, 10 tool apron 4 are arranged in a single spiral line, the axial distance between every two adjacent tool apron 4 is 21.5mm, the radial included angle between every two adjacent tool apron 4 on the same spiral line is 36 degrees, and the axial distance between every two tool apron 4 is 645 mm; the crescent knife 5 is fixed in the knife holder 4 by using a bolt or a screw.
Key grooves are formed in two sides of the main cutter shaft 1, key grooves are formed in one side of the auxiliary cutter shaft 2, the size of each key groove is 12 x 90mm, the key grooves are parallel to the axis direction of the cutter shafts and used for circumferentially fixing belt pulleys and chain wheels of the main cutter shaft 1 and chain wheels of the auxiliary cutter shaft 2; after the bearing is installed, the bearing is wrapped by a bearing sleeve, and eight through holes are formed in a base plate of the bearing sleeve and fixed with the rack 7 through bolts.
The cutter shaft sleeve 3 is a cylindrical shell part coaxial with the main cutter shaft 1 or the auxiliary cutter shaft 2 sleeved with the cutter shaft sleeve; the tool apron 4 is a rectangular square or square pipe structural member, and the left side and the right side of the tool apron 4 are arranged in the direction perpendicular to the axis of the tool shaft sleeve 3.
The tool apron 4 is provided with an installation groove for the crescent knife 5 to be inserted conveniently; the part of the bottom of the crescent knife 5, which is inserted into the knife holder 4, is of a rectangular square or square tube structure, and the part of the knife holder 4, which is used for inserting and fixing the bottom of the crescent knife 5, is of a square tube structure;
the side wall of the cutter holder 4 perpendicular to the axis of the cutter shaft sleeve 3 and the local structure of the cutter holder 4 inserted by the crescent cutter 5 are both provided with through holes, and the cutter holder 4 and the crescent cutter 5 are fixedly connected into a whole by means of the through holes and bolts.
The cutting edges of all the crescent knives 5 face the same direction, and the cutting edges of the crescent knives 5 face the direction vertical to the axis of the knife shaft sleeve 3; the total length of the crescent knife 5 is 90mm, the cutting edge is an arc with the radius of 150mm, the knife back is an arc with the radius of 80 mm, and the local structure of the crescent knife 5 inserted into the knife holder 4 is a rectangular block with the length of 20mm, the width of 10mm and the height of 25 mm.
A reinforcing steel bar screen 6 is also arranged in the crushing device of the straw bale breaking crusher, is placed below the main cutter shaft and the auxiliary cutter shaft and on the left outer side surface and the right outer side surface of the main cutter shaft and the auxiliary cutter shaft in the horizontal direction, and is welded and fixed with the rack 7;
the steel bar screen 6 is provided with two pieces which are respectively arranged corresponding to the main cutter shaft 1 and the auxiliary cutter shaft 2, the two pieces of steel bar screens 6 are respectively of a net-shaped semi-surrounding structure coaxial with the main cutter shaft 1 and the auxiliary cutter shaft 2, and the adjacent parts of the two pieces of steel bar screens 6 are fixedly connected into a whole;
the steel bar screen 6 is an arc with the radius of 275mm, is formed by five longitudinal bars with the diameter of 12mm and the length equal to that of the cutter shaft sleeve 3, is welded and fixed between the steel bars, and is welded and fixed between the two steel bar screens.
The cutter shaft sleeve 3 and the main cutter shaft 1 are fixed into a whole by using a welding structure, the cutter shaft sleeve 3 and the auxiliary cutter shaft 2 are also fixed into a whole by using a welding structure, and the cutter holder 4 and the cutter shaft sleeve 3 are fixed into a whole by using a welding structure.
The main cutter shaft 1, the auxiliary cutter shaft 2, the cutter shaft sleeve 3 and the cutter holder 4 are all made of 45 steel materials; the crescent knife 5 is made of manganese steel; the steel bar screen 6, the frame 7 and the bearing sleeve are all made of common carbon steel.
Compared with the prior art, the utility model, have following advantage:
1) the utility model discloses compact structure, arbor, bearing sleeve 3, blade holder 4 all adopt welded fastening for whole crushing rotor structure is more firm, and the mounting groove shape and the perfect match of crescent moon sword base shape of blade holder make the installation of crescent moon sword 5 more firm.
2) The utility model discloses a blade holder is arranged and is used multistage spiral and distribute, enables to smash more evenly, can reduce the impact vibration of rotor, has prolonged the life-span of driving medium and bearing, makes the machines operation steady.
3) The utility model discloses use crescent knife 5 to cooperate, improve and smash efficiency, use bolted connection, be convenient for change.
Drawings
FIG. 1 is a schematic perspective view of the structure of example 1;
FIG. 2 is a structural top view of embodiment 1;
FIG. 3 is a tool holder layout of embodiment 1;
FIG. 4 is a side view of the structure of example 1;
FIG. 5 is a schematic perspective view of a cutter bar housing according to embodiment 1;
FIG. 6 is a sectional view of the cutter hub in embodiment 1;
FIG. 7 is a schematic perspective view of the crescent knife 5 in example 1;
fig. 8 is a structural side view of the center shaft and the reinforcing bar screen 6 in embodiment 1.
Detailed Description
The invention will be further described with reference to the following specific drawings and examples:
as shown in fig. 1: the embodiment 1 discloses a crushing device of a straw bag breaking crusher, which mainly comprises a main cutter shaft 1, an auxiliary cutter shaft 2, a cutter shaft sleeve 3, a cutter holder 4, a crescent cutter 5, a steel bar screen 6 and a rack 7.
As shown in fig. 1 and 2, the main cutter shaft 1 and the auxiliary cutter shaft 2 are arranged in parallel, a plane formed by the two cutter shafts is parallel to the bottom surface of the frame 7, the position of the plane is fixed by a bearing sleeve fixed on the frame 7, and the cutter shaft sleeve 3 is sleeved on the cutter shafts.
As shown in fig. 3, the arrangement of the tool apron 4 is divided into two groups, four spiral lines in each group are arranged, 10 tool apron tools 4 are arranged in a single spiral line, the axial distance between every two adjacent tool apron tools 4 is 21.5mm, the radial included angle between every two adjacent tool apron tools 4 on the same spiral line is 36 degrees, and the axial distance between every two tool apron tools 4 is 645 mm.
As shown in fig. 4, the rotation directions of the two cutter shafts are the same, the main cutter shaft and the motor are driven by a belt, and the main cutter shaft and the auxiliary cutter shaft are driven by chain transmission.
As shown in fig. 5 and 6, the cutter shaft sleeve 3 is a concentric cylindrical shell, two ends of the cutter shaft sleeve 3 are recessed, the cutter seats 4 are uniformly distributed according to a spiral line and welded on the cutter shaft sleeve 3, the cutter seats 4 are rectangular blocks, the side surfaces of the cutter seats are parallel to the end surface of the cutter shaft sleeve, and mounting grooves are formed for the insertion of the crescent cutters 5; the surface of the tool apron 4 parallel to the end surface of the tool shaft sleeve and the part of the crescent knife 5 inserted into the tool apron are provided with through holes, and the two parts are fastened and connected through bolts.
As shown in figure 7, the shape of the bottom of the crescent knife 5 is consistent with that of the mounting groove of the knife holder 4, the inclination of the exposed part of the cutting edge of the crescent knife is 25-30 degrees, the cutting edges of all the crescent knives face the same direction, and the cutting edges of the crescent knives face the direction perpendicular to the knife shaft sleeve.
As shown in fig. 8, the steel bar screen 6 is placed below the main knife shaft and the auxiliary knife shaft, the two steel bar screens are fixed by welding, and the steel bars are fixed by welding.
In consideration of the factors of material cost, material wear resistance and the like, the main cutter shaft 1, the auxiliary cutter shaft 2, the cutter shaft sleeve 3 and the cutter holder 4 are all made of 45 steel materials; the crescent knife 5 is made of manganese steel; the steel bar screen 6, the frame 7 and the bearing sleeve are all made of common carbon steel.
Example 1
A crushing device of a straw bale breaking crusher comprises the following components: main arbor 1, vice arbor 2, cutter arbor sleeve 3, blade holder 4, crescent knife 5, steel bar screen 6, frame 7, motor, wherein: the main cutter shaft 1 is connected with a motor for driving the main cutter shaft 1, the main cutter shaft 1 and the auxiliary cutter shaft 2 are connected through a transmission component (chain transmission connection) so as to rotate simultaneously, the rotation directions of the main cutter shaft 1 and the auxiliary cutter shaft 2 are the same, the axes of the main cutter shaft 1 and the auxiliary cutter shaft 2 are arranged in parallel, and the plane formed by the axes of the main cutter shaft 1 and the auxiliary cutter shaft 2 and the bottom surface of the frame 7 are horizontal planes; the two cutter shaft sleeves 3 are tubular parts and are respectively sleeved on the main cutter shaft 1 and the auxiliary cutter shaft 2; the crescent knife 5 has a plurality of and all arrange respectively on each blade holder 4 for all fix the arrangement on the lateral surface of cutter arbor sleeve 3 with a plurality of blade holders 4 corresponding so that its installation is convenient for with every crescent knife 5, blade holder 4 is along helix evenly distributed on the lateral surface of cutter arbor sleeve 3, has arranged 10 blade holders 4 in the single helix.
In the crushing device of the straw bale breaking crusher, referring to fig. 3, the arrangement of the cutter holder 4 on the cutter shaft sleeve 3 meets the following requirements: the tool apron 4 is divided into two groups, each group of four spiral lines, the tool apron 4 is distributed on the outer side surface of the tool shaft sleeve 3 along the spiral lines, 10 tool apron 4 are arranged in a single spiral line, the axial distance between every two adjacent tool apron 4 is 21.5mm, the radial included angle between every two adjacent tool apron 4 on the same spiral line is 36 degrees, and the axial distance between every two tool apron 4 is 645 mm; the crescent knife 5 is fixed in the knife holder 4 by using a bolt or a screw. The crescent knife 5 is fixed in the knife holder 4 by using a bolt or a screw.
Key grooves are formed in two sides of the main cutter shaft 1, key grooves are formed in one side of the auxiliary cutter shaft 2, the size of each key groove is 12 x 90mm, the key grooves are parallel to the axis direction of the cutter shafts and used for circumferentially fixing belt pulleys and chain wheels of the main cutter shaft 1 and chain wheels of the auxiliary cutter shaft 2; after the bearing is installed, the bearing is wrapped by a bearing sleeve, and eight through holes are formed in a base plate of the bearing sleeve and fixed with the rack 7 through bolts.
The cutter shaft sleeve 3 is a cylindrical shell part coaxial with the main cutter shaft 1 or the auxiliary cutter shaft 2 sleeved with the cutter shaft sleeve; the tool apron 4 is a rectangular square or square pipe structural member, and the left side and the right side of the tool apron 4 are arranged in the direction perpendicular to the axis of the tool shaft sleeve 3.
The arrangement of blade holder 4 is divided into two sets ofly, and four helices of every group have arranged 10 blade holders 4 in the single helix, and two adjacent blade holders 4 axial distance are 21.5mm, and the radial contained angle that is located two adjacent blade holders 4 on same helix is 36, and two sets of blade holders 4 axial distance are 645 mm.
The tool apron 4 is provided with an installation groove for the crescent knife 5 to be inserted conveniently; the part of the bottom of the crescent knife 5, which is inserted into the knife holder 4, is of a rectangular square or square tube structure, and the part of the knife holder 4, which is used for inserting and fixing the bottom of the crescent knife 5, is of a square tube structure;
the side wall of the tool apron 4 perpendicular to the axis of the tool shaft sleeve 3 and the local structure of the tool apron inserted by the crescent cutter 5 are both provided with through holes, and the tool apron 4 and the crescent cutter 5 are fixedly connected into a whole by means of the through holes and bolts.
All the cutting edges of the crescent knives 5 face the same direction, and the cutting edges of the crescent knives 5 face the direction perpendicular to the axis of the knife shaft sleeve 3.
The total length of the crescent knife 5 is 90mm, the cutting edge is an arc with the radius of 150mm, the knife back is an arc with the radius of 80 mm, and the local structure of the crescent knife 5 inserted into the knife holder 4 is a rectangular block with the length of 20mm, the width of 10mm and the height of 25 mm.
A reinforcing steel bar screen 6 is also arranged in the crushing device of the straw bale breaking crusher, is placed below the main cutter shaft and the auxiliary cutter shaft and on the left outer side surface and the right outer side surface of the main cutter shaft and the auxiliary cutter shaft in the horizontal direction, and is welded and fixed with the rack 7;
the steel bar screen 6 is provided with two pieces which are respectively arranged corresponding to the main cutter shaft 1 and the auxiliary cutter shaft 2, the two pieces of steel bar screens 6 are respectively of a net-shaped semi-surrounding structure coaxial with the main cutter shaft 1 and the auxiliary cutter shaft 2, and the adjacent parts of the two pieces of steel bar screens 6 are fixedly connected into a whole;
the steel bar screen 6 is an arc with the radius of 275mm, is formed by five longitudinal bars with the diameter of 12mm and the length equal to that of the cutter shaft sleeve 3, is welded and fixed between the steel bars, and is welded and fixed between the two steel bar screens.
The cutter shaft sleeve 3 and the main cutter shaft 1 are fixed into a whole by using a welding structure, the cutter shaft sleeve 3 and the auxiliary cutter shaft 2 are also fixed into a whole by using a welding structure, and the cutter holder 4 and the cutter shaft sleeve 3 are fixed into a whole by using a welding structure.
Compared with the prior art, the embodiment has the following advantages:
1) this embodiment compact structure, main arbor 1, vice arbor 2, cutter sleeve 3, blade holder 4 all adopt welded fastening for whole crushing rotor structure is more firm, and blade holder 4's mounting groove shape and 5 base shapes perfect match of crescent moon sword, make the installation of crescent moon sword 5 more firm.
2) The blade holder 4 of this embodiment arranges and uses the multistage spiral to distribute, enables to smash more evenly, can reduce the impact vibration of rotor, has prolonged the life-span of driving medium and bearing, makes the machines operation steady.
3) This embodiment uses crescent knife 5 to cooperate, improves crushing efficiency, uses bolted connection, is convenient for change.
Claims (8)
1. The utility model provides a reducing mechanism of broken package rubbing crusher of straw which characterized in that: the structure is as follows: main arbor (1), vice arbor (2), cutter sleeve (3), blade holder (4), crescent knife (5), frame (7), motor, wherein: the main cutter shaft (1) is connected with a motor for driving the main cutter shaft and is connected with the auxiliary cutter shaft (2) through a belt in a transmission way, the main cutter shaft (1) and the auxiliary cutter shaft (2) are connected through a transmission component, the axes of the main cutter shaft (1) and the auxiliary cutter shaft (2) are arranged in parallel, and the plane formed by the axes of the main cutter shaft and the auxiliary cutter shaft and the bottom surface of the rack (7) are horizontal planes; the two cutter shaft sleeves (3) are tubular parts and are respectively sleeved on the main cutter shaft (1) and the auxiliary cutter shaft (2); the crescent knife (5) has a plurality of handles which are respectively arranged on the knife blocks (4).
2. The crushing device of the straw bale breaking crusher as claimed in claim 1, characterized in that: the arrangement of the tool apron (4) on the tool bushing (3) meets the following requirements: the tool apron (4) is divided into two groups, each group comprises four spiral lines, the tool apron (4) is distributed on the outer side surface of the tool shaft sleeve (3) along the spiral lines, 10 tool apron (4) are arranged in a single spiral line, the axial distance between every two adjacent tool apron (4) is 21.5mm, the radial included angle between every two adjacent tool apron (4) on the same spiral line is 36 degrees, and the axial distance between every two tool apron (4) is 645 mm; the crescent cutter (5) is fixed in the cutter holder (4) by using bolts or screws.
3. The crushing device of the straw bale breaking crusher as claimed in claim 1 or 2, characterized in that: key grooves are formed in two sides of the main cutter shaft (1), key grooves are formed in one side of the auxiliary cutter shaft (2), the size of each key groove is 12 x 90mm, the key grooves are parallel to the axis direction of the cutter shafts, and are used for circumferentially fixing a belt pulley and a chain wheel of the main cutter shaft (1) and circumferentially fixing a chain wheel of the auxiliary cutter shaft (2); after the bearing is installed, the bearing is wrapped by a bearing sleeve, and eight through holes are formed in a base plate of the bearing sleeve and fixed with the rack (7) through bolts.
4. The crushing device of the straw bale breaking crusher as claimed in claim 3, characterized in that: the cutter shaft sleeve (3) is a cylindrical shell part coaxial with the main cutter shaft (1) or the auxiliary cutter shaft (2) sleeved with the cutter shaft sleeve; the tool apron (4) is a rectangular square or square pipe structural part, and the left side surface and the right side surface of the tool apron (4) are arranged in the direction perpendicular to the axis of the tool shaft sleeve (3).
5. The crushing device of the straw bale breaking crusher as claimed in claim 4, wherein: the tool apron (4) is provided with an installation groove for the crescent knife (5) to be inserted conveniently; the part of the bottom of the crescent cutter (5) inserted into the cutter holder (4) is of a rectangular square or square tube structure, and the part of the cutter holder (4) used for inserting and fixing the bottom of the crescent cutter (5) is of a square tube structure;
the side wall of the cutter holder (4) perpendicular to the axis of the cutter shaft sleeve (3) and the local structure of the cutter holder (4) inserted by the crescent cutter (5) are both provided with through holes, and the cutter holder (4) and the crescent cutter (5) are fixedly connected into a whole by means of the through holes and bolts.
6. The crushing device of the straw bale breaking crusher as claimed in claim 5, wherein: the cutting edges of all the crescent knives (5) face the same direction, and the cutting edges of the crescent knives (5) face the direction vertical to the axis of the knife shaft sleeve (3);
the total length of the crescent knife (5) is 90mm, the cutting edge is an arc with the radius of 150mm, the knife back is an arc with the radius of 80, and the local structure of the crescent knife (5) inserted into the knife holder (4) is a rectangular block with the length of 20mm, the width of 10mm and the height of 25 mm.
7. The crushing device of the straw bale breaking crusher as claimed in claim 3, characterized in that: a reinforcing steel bar screen (6) is also arranged in the crushing device of the straw bale breaking crusher, is placed below the main cutter shaft and the auxiliary cutter shaft and on the left outer side surface and the right outer side surface of the main cutter shaft and the auxiliary cutter shaft in the horizontal direction, and is welded and fixed with the rack (7);
the steel bar screen (6) is provided with two pieces which are respectively arranged corresponding to the main cutter shaft (1) and the auxiliary cutter shaft (2), the two pieces of steel bar screen (6) are net-shaped semi-surrounding structures which are respectively coaxial with the main cutter shaft (1) and the auxiliary cutter shaft (2), and the adjacent parts of the two pieces of steel bar screen (6) are fixedly connected into a whole;
the steel bar sieve (6) is an arc with the radius of 275mm, and is formed by surrounding fifty longitudinal bars with the diameter of 12mm and the length equal to that of the cutter shaft sleeve (3), the steel bars are fixed by welding, and the two steel bar sieves are fixed by welding.
8. The crushing device of the straw bale breaking crusher as claimed in claim 4, wherein: the cutter shaft sleeve (3) and the main cutter shaft (1) are fixed into a whole by using a welding structure, the cutter shaft sleeve (3) and the auxiliary cutter shaft (2) are also fixed into a whole by using a welding structure, and the cutter holder (4) and the cutter shaft sleeve (3) are fixed into a whole by using a welding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822180571.4U CN209806504U (en) | 2018-12-19 | 2018-12-19 | Smashing device of straw bag breaking pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822180571.4U CN209806504U (en) | 2018-12-19 | 2018-12-19 | Smashing device of straw bag breaking pulverizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209806504U true CN209806504U (en) | 2019-12-20 |
Family
ID=68869762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822180571.4U Expired - Fee Related CN209806504U (en) | 2018-12-19 | 2018-12-19 | Smashing device of straw bag breaking pulverizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209806504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116140033A (en) * | 2023-01-28 | 2023-05-23 | 聊城双能采暖工程有限公司 | Recycling device for melon seedling treatment |
-
2018
- 2018-12-19 CN CN201822180571.4U patent/CN209806504U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116140033A (en) * | 2023-01-28 | 2023-05-23 | 聊城双能采暖工程有限公司 | Recycling device for melon seedling treatment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 Termination date: 20201219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |