CN203508136U - Heavy biaxial steel scrap shredding machine - Google Patents
Heavy biaxial steel scrap shredding machine Download PDFInfo
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- CN203508136U CN203508136U CN201320499313.7U CN201320499313U CN203508136U CN 203508136 U CN203508136 U CN 203508136U CN 201320499313 U CN201320499313 U CN 201320499313U CN 203508136 U CN203508136 U CN 203508136U
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- cutter hub
- steel scrap
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Abstract
The utility model relates to a heavy biaxial steel scrap shredding machine, comprising a rack, a box body, a feed hopper, left and right hydraulic motors, left and right speed reducers, left and right connecting flanges, front and rear knife rolls, and left and right bearing blocks arranged on the front and rear knife rolls, wherein the box body is arranged on the rack; an opening is formed in the top of the box body; the feed hopper is arranged at the top opening of the box body; the left and right bearing blocks of the front knife roll and the left and right bearing blocks of the rear knife roll are respectively arranged on the left and right sides of the box body; the right bearing block of the front knife roll is connected with the right connecting flange; the left bearing block of the rear knife roll is connected with the left connecting flange; the left and right speed reducers are connected with the left and right hydraulic motors respectively; the front knife roll is arranged on the left and right bearing blocks of the front knife roll; the front and rear knife rolls are connected to the left and right speed reducers; a front axle knife body and a rear axle knife body for shredding materials are arranged on the front and rear knife rolls. The heavy biaxial scrap shredding machine has the advantages of being low in rotating speed, low in noise, large in torque, strong in capability of shredding a medium plate, low in energy consumption, safe and reliable, and the like, and the steel scrap materials can be mechanically processed in batches.
Description
Technical field
The utility model relates to the steel plate of a kind of thickness below 20mm and tears up equipment, refers to especially a kind of heavy twin shaft steel scrap shredder.
Background technology
Along with industrial high speed development, society to steel plate especially in, super-thick steel plate is used and demand is constantly increasing progressively, yet steel plate corner and waste material also increase gradually along with producing with constantly increasing progressively of use amount.
At present, after comprising shearing for common (10mm) following waste and old steel processing method, by hand press-packing machine or after manually making briquetting, bundle and melt down processing, yet the waste and old steel plate of 10-20mm, the larger dead meal of area particularly, need to use high pressure acetylene equipment or manually acetylene equipment cut, in cutting process, not only can produce a large amount of cutting waste residues, waste a large amount of acetylene resources, also discharge a large amount of carbon dioxide and other gas, environment is caused to very big pollution, this processing method technological means falls behind, operation is lack of standardization very easily to produce and explodes, harm people's life and property safety, cause the waste of manpower and the increase of cost.
Utility model content
In order to meet increasingly progressive social demand, with science and technology, replace the modern production means of manual work, reach environmental protection, economy, circulation and be integrated the object of integrated treatment, and overcome the deficiency of existing heavy twin shaft steel scrap shredder background process technology.Technical problem to be solved in the utility model is, provide a kind of mechanization, batch process waste and old in the equipment that tears up of thick following steel plate materials.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of heavy twin shaft steel scrap shredder, comprise frame, casing, feed hopper, left and right hydraulic motor, left and right reductor, left and right adpting flange, front and back rotor and the Y-axis bearing that front and back rotor is installed, described casing is arranged in described frame, described casing top is provided with opening, described feed hopper is arranged in described casing open top, the described casing left and right sides is separately installed with front rotor Y-axis bearing and rear rotor Y-axis bearing, described front rotor right bearing seat is connected with described right adpting flange, described rear rotor left shaft holder is connected with described left adpting flange, described left and right reductor is connected with described left and right hydraulic motor respectively, described front rotor is arranged in described front rotor Y-axis bearing, described front rotor also comprises forward spindle, described forward spindle is arranged on described right reductor, described rear rotor is arranged in described rear rotor Y-axis bearing, and described rear rotor also comprises rear main shaft, and described rear main shaft is arranged on described left reductor, and described front and back rotor is provided with for tearing up front axle cutter hub and the rear axle cutter hub of material.
The beneficial effects of the utility model are: the hydraulic drive left and right reductor of left and right hydraulic motor rotates, by rotor before and after the bearings of left and right, rotate, owing to being provided with on the rotor of front and back for tearing up front axle cutter hub and the rear axle cutter hub of material, when steel scrap material drops into casing by feed hopper, the antero posterior axis cutter hub of rotation by steel scrap material tear up to reach mechanization, batch process waste and old in the object of thick following steel plate materials, the utlity model has the slow-speed of revolution, low noise, high pulling torque, to medium plate tear up ability by force, low power consuming, the advantage such as safe and reliable.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, described front axle cutter hub and rear axle cutter hub are separately installed with the first tool rest and the second tool rest, on described tool rest, cutting knife are installed, and described cutting knife outer is polygonized structure.
Adopt the beneficial effect of above-mentioned further scheme to be, the cutting knife on tool rest is used for tearing up steel scrap material, and polygonal cutting knife outer structure can provide larger torsion, and the ability that makes to tear up steel scrap material is stronger.
Further, on the cutting knife outer on described antero posterior axis cutter hub, be respectively arranged with pawl cutter.
Adopt the beneficial effect of above-mentioned further scheme to be, because pawl cutter has very strong cutting power, can more efficiently steel scrap material be cut open.
Further, described pawl cutter is at least two, and is distributed in axisymmetricly described cutting knife outer with described antero posterior axis cutter hub axle center.
Adopt the beneficial effect of above-mentioned further scheme to be, because cutting knife outer is provided with a plurality of pawl cuttves, and distribute axisymmetricly, in the process rotating a circle at cutter hub, can repeatedly to steel scrap material, cut, improved the efficiency of tearing up of steel scrap material.
Further, described pawl cutter is half hook-shape structure, and the blade direction of pawl cutter is consistent with described antero posterior axis cutter hub direction of rotation.
Adopt the beneficial effect of above-mentioned further scheme to be, because pawl cutter is half hook-shape structure, and the blade direction of pawl cutter is consistent with described cutter hub direction of rotation, when cutter hub rotates, the blade of pawl cutter will cut steel scrap material, the cutting effect of blade is very obvious, steel scrap material to tear up efficiency very good.
Further, described antero posterior axis cutter hub is detachable cutter hub, and described antero posterior axis cutter hub and spacer are staggered to be arranged on the rotor of front and back side by side.
Adopt the beneficial effect of above-mentioned further scheme to be, detachable cutter hub is convenient to dismounting and the maintenance of cutter hub, occurs, after wearing and tearing, being easy to single cutter hub to carry out independent replacing, very convenient.
Further, the interlaced engagement of antero posterior axis cutter hub on the rotor of described front and back is arranged, and the tool rest of antero posterior axis cutter hub is hexagon hollow body structure, and in the tool rest on the rotor of front and back, hexagon differs 30 degree anglecs of rotation installations.
Adopt the beneficial effect of above-mentioned further scheme to be; the interlaced engagement of antero posterior axis cutter hub is arranged; when forming cutting when work, cutter hub is better protected; in tool rest on the rotor of front and back, hexagon differs 30 degree anglecs of rotation installations; make the interlaced arrangement of pawl cutter on cutting knife, whole front and back rotor has good cutting effect.
Further, in described casing on the sidewall corresponding with described antero posterior axis cutter hub, be provided with parting bead and dividing plate cutter hub with the interlaced engagement of described cutter hub, described dividing plate cutter hub is arranged on dividing plate, and dividing plate is connected with wall box by dividing plate fixed head.
Adopting the beneficial effect of above-mentioned further scheme to be, is fixture at casing internal partition cutter hub, and when front rotor and the rotation of rear rotor, dividing plate cutter hub forms scraper plate effect, makes front rotor and rear rotor in rotary course, form engagement shear pattern steel scrap material is torn up.
Further, the four limit bodies of described casing for being formed by the side plate welding of four of front, rear, left and right, are provided with discharging opening in the bottom of described casing, and in described frame, both sides, front and back are provided with hanger.
Adopt the beneficial effect of above-mentioned further scheme to be, the installation of front rotor left and right bearing and rear rotor left and right bearing can first be assemblied on the rotor of front and back, with front and back rotor, be installed in the lump in casing, this measure can reduce the front and back rotor energy imbalance that attaches bearing block and cause; Discharging opening is arranged on bottom half, in the space that the pillar of frame forms, after steel scrap material is torn up by rotor, freely from discharging opening, falls; When heavy twin shaft steel scrap shredder needs repairing, can, by after the reductor dismounting of casing outside, use the hanger on crane gear lifting casing can conveniently take casing apart.
Further, described hydraulic motor is variable hydraulic motor.
Adopt the beneficial effect of above-mentioned further scheme to be, variable hydraulic motor has while allowing high extraneous axle load, outstanding starting characteristic, transmission has larger adjustable range and the feature of little inertia, this structure not only can save the gear drive of multiple gear ratios but also reasonably improve equipment service efficiency.
Accompanying drawing explanation
The heavy twin shaft steel scrap shredder structural representation that Fig. 1 provides for the utility model;
Fig. 2 is side-looking structure and the cut-away section structural representation of Fig. 1;
Fig. 3 is plan structure and the cut-away section structural representation of Fig. 1;
Forward and backward knife roller structure schematic diagram shown in Fig. 3 that Fig. 4 is;
Fig. 5 is the two removable structure of the cutter body schematic diagrames of pawl of the front axle shown in Fig. 4;
Fig. 6 is the two removable structure of the cutter body schematic diagrames of pawl of the rear axle shown in Fig. 4.
In accompanying drawing, the list of parts of each label representative is as follows:
1, left hydraulic motor, 2, right hydraulic motor, 3, left reductor, 4, right reductor, 5, left adpting flange, 6, right adpting flange, 7, front rotor left bearing, 8, front rotor right bearing, 9, feed hopper, 10, frame, 11, rear rotor, 12, dividing plate fixed head, 13, dividing plate cutter hub, 14, dividing plate, 15, casing, 16, hanger, 17, front rotor, 18, parting bead, 19, rear rotor left bearing, 20, rear rotor right bearing, 21, rear axle cutter hub, 22, spacer, 23, rear main shaft, 24, front axle cutter hub, 25, forward spindle, 26, the first tool rest, 27, cutting knife, 28, pawl cutter, 29, the second tool rest
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
A heavy twin shaft steel scrap shredder, as Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, comprise frame 10, casing 15, feed hopper 9, left and right hydraulic motor 1, 2, left and right reductor 3, 4, left and right adpting flange 5, 6, front and back rotor 17, 11 and install before and after rotor 17, 11 Y-axis bearing 7, 8, 19, 20, described casing 15 is arranged in described frame 10, and described casing 15 tops are provided with opening, and described feed hopper 9 is arranged in described casing 15 open tops, and described casing 15 left and right sides are separately installed with front rotor Y-axis bearing 7, 8 and rear rotor Y-axis bearing 19, 20, described front rotor right bearing seat 8 is connected with described right adpting flange 6, and described rear rotor left shaft holder 19 is connected with described left adpting flange 5, described left and right reductor 3, 4 respectively with described left and right hydraulic motor 1, 2 connect, and described front rotor 17 is arranged on described front rotor left and right bearing 7, 8 upper, and described front rotor 17 also comprises forward spindle 25, and described forward spindle 25 is arranged on described right reductor 4, described rear rotor 11 is arranged in described rear rotor Y-axis bearing 19,20, described rear rotor 11 also comprises rear main shaft 23, described rear main shaft 23 is arranged on described left reductor 3, and described front and back rotor 17,11 is provided with for tearing up front axle cutter hub 24 and the rear axle cutter hub 21 of material.
As shown in Figure 5, Figure 6, described front axle cutter hub 24 and rear axle cutter hub 21 are separately installed with the first tool rest 26 and the second tool rest 29, on described tool rest 26,29, cutting knife 27 is installed, described cutting knife 27 outers are polygonized structure, and described cutting knife 27 is that the mode being bolted is connected with tool rest 26,29.
On cutting knife 27 outers on described antero posterior axis cutter hub 24,21, be provided with pawl cutter 28.
Described pawl cutter 28 is at least two, and with described cutter hub axle center, is distributed in axisymmetricly described cutter and cuts 27 outers.
Described pawl cutter 28 is half hook-shape structure, and the blade direction of pawl cutter 28 is consistent with described cutter hub direction of rotation.
Described antero posterior axis cutter hub 24,21 is detachable cutter hub, and described antero posterior axis cutter hub 24,21 and spacer 22 are staggered to be arranged on the rotor 17,11 of front and back side by side.
The interlaced engagement of antero posterior axis cutter hub 24,21 on described front and back rotor 17,11 is arranged, and the tool rest 26,29 of antero posterior axis cutter hub 24,21 is hexagon hollow body structure, and in the tool rest on front and back rotor 17,11, hexagon differs 30 degree anglecs of rotation installations.
On the interior sidewall corresponding with described antero posterior axis cutter hub 24,21 of described casing 15, be provided with parting bead 18 and dividing plate cutter hub 13 with described cutter hub 24,21 interlaced engagements, dividing plate cutter hub 13 is arranged on dividing plate 14, and dividing plate 14 is fixed in the inner side of casing 15 by dividing plate fixed head 12.
The four limit bodies of described casing 15 for being formed by the side plate welding of four of front, rear, left and right, bottom at described casing is provided with discharging opening, before and after in described frame 10, both sides are provided with hanger 16, and hanger 16 is to be connected by the mode of welding and the side of described frame 10.
Described hydraulic motor 1,2 is variable hydraulic motor.
Left and right adpting flange 5,6 in the utility model is P23 adpting flange, and cutter pawl 28 adopts superstrength alloy tool steel to make, have rigidity by force, the feature such as not easy to wear, convenient disassembly.
Operation principle of the present utility model is as follows:
Left and right variable hydraulic motor, left, right reductor 3, 4 are connected with the left and right sides axle general formula of casing respectively, thereby drive reductor rotation, left and right reductor 3, 4 connect before drive by key, rear rotor 17, 11 rotations, and front and back rotor 17, 11 rotation directions are contrary, rotating speed is consistent, when steel scrap material drops into casing 15 from feed hopper 3, due to front and back rotor 17, 11 rotation directions are contrary, rotating speed is consistent, steel scrap material will be by front and back rotor 17, 11 rotate and bring into before and after rotor 17, between 11, front and back rotor 17, 11 are provided with high strength, sharp antero posterior axis cutter hub 24, 21, and interlaced engagement is arranged, steel scrap material will be torn up like this, to reach mechanization, the object of thick following steel plate materials during batch process is waste and old, at casing 15 internal partition cutter hubs 13, are fixtures, when front rotor 17 and 11 rotation of rear rotor, dividing plate cutter hub 13 forms scraper plate effect, makes front rotor 17 and rear rotor 11 in rotary course, form engagement shear pattern steel scrap material is torn up, and efficiency is very high, the steel scrap material being torn up freely falls from discharging opening by being located at the discharging opening of bottom half.
Cutting knife of the present utility model outer is provided with two and half hook-shape structure pawl cuttves 28, and distributes axisymmetricly, in the process rotating a circle, can repeatedly to steel scrap material, cut at cutter hub, has improved the efficiency of tearing up of steel scrap material; The interlaced engagement of antero posterior axis cutter hub 24,21 is arranged, when forming cutting when work, cutter hub is better protected, in tool rest on the rotor 17,11 of front and back, hexagon differs 30 degree anglecs of rotation installations, make the interlaced arrangement of pawl cutter 28 on cutting knife, whole front and back rotor 17,11 has good cutting effect; The structure that four of the front, rear, left and right side plate welding of casing 15 forms, the installation of front rotor Y-axis bearing 7,8 and rear rotor Y-axis bearing 19,20 can first be assemblied on the rotor 17,11 of front and back, with front and back rotor 17,11, be installed in the lump in casing 15, this measure can reduce front and back rotor 17,11 energy imbalances that attach bearing block and cause; Discharging opening is arranged on casing 15 bottoms, in the space that the pillar of frame 10 forms, after steel scrap material is torn up by rotor, freely from discharging opening, falls; When heavy twin shaft steel scrap shredder needs repairing, can, by after the reductor dismounting of casing 15 outsides, use the hanger 16 on crane gear lifting casing can conveniently take casing apart; Variable hydraulic motor has while allowing high extraneous axle load, outstanding starting characteristic, transmission has larger adjustable range and the feature of little inertia, this structure not only can save the gear drive of multiple gear ratios but also reasonably improve equipment service efficiency; Detachable cutter hub is convenient to dismounting and the maintenance of cutter hub, occurs, after wearing and tearing, being easy to single cutter hub to carry out independent replacing, very convenient.
The beneficial effect of the heavy twin shaft steel scrap shredder that the utility model provides is: have the slow-speed of revolution, low noise, high pulling torque, to medium plate tear up that ability is strong, low power consuming, the advantage such as safe and reliable, can be in batches, scrap steel material is processed on mechanization ground.
The foregoing is only preferred embodiment of the present utility model; just for helping to understand core concept of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle; any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a heavy twin shaft steel scrap shredder, it is characterized in that: comprise frame, casing, feed hopper, left and right hydraulic motor, left and right reductor, left and right adpting flange, front and back rotor and the Y-axis bearing that is arranged on front and back rotor, described casing is arranged in described frame, described casing top is provided with opening, described feed hopper is arranged in described casing open top, the described casing left and right sides is separately installed with front rotor Y-axis bearing and rear rotor Y-axis bearing, described front rotor right bearing seat is connected with described right adpting flange, described rear rotor left shaft holder is connected with described left adpting flange, described left and right reductor is connected with described left and right hydraulic motor respectively, described front rotor is arranged in described front rotor Y-axis bearing, described front rotor also comprises forward spindle, described forward spindle is arranged on described right reductor, described rear rotor is arranged in described rear rotor Y-axis bearing, and described rear rotor also comprises rear main shaft, and described rear main shaft is arranged on described left reductor, and described front and back rotor is provided with for tearing up front axle cutter hub and the rear axle cutter hub of material.
2. heavy twin shaft steel scrap shredder according to claim 1, is characterized in that: described front axle cutter hub and rear axle cutter hub are separately installed with the first tool rest and the second tool rest, on described tool rest, cutting knife are installed, and described cutting knife outer is polygonized structure.
3. heavy twin shaft steel scrap shredder according to claim 2, is characterized in that: on the cutting knife outer on described antero posterior axis cutter hub, be respectively arranged with pawl cutter.
4. heavy twin shaft steel scrap shredder according to claim 3, is characterized in that: described pawl cutter is at least two, and is distributed in axisymmetricly described cutting knife outer with described antero posterior axis cutter hub axle center.
5. heavy twin shaft steel scrap shredder according to claim 4, is characterized in that: described pawl cutter is half hook-shape structure, and the blade direction of pawl cutter is consistent with described antero posterior axis cutter hub direction of rotation.
6. according to the heavy twin shaft steel scrap shredder described in claim 1 to 5 any one, it is characterized in that: described antero posterior axis cutter hub is detachable cutter hub, described antero posterior axis cutter hub and spacer are staggered to be arranged on the rotor of front and back side by side.
7. heavy twin shaft steel scrap shredder according to claim 6, it is characterized in that: the interlaced engagement of antero posterior axis cutter hub on the rotor of described front and back is arranged, the tool rest of antero posterior axis cutter hub is hexagon hollow body structure, and in the tool rest on the rotor of front and back, hexagon differs 30 degree anglecs of rotation installations.
8. according to the heavy twin shaft steel scrap shredder described in claim 1 or 7, it is characterized in that: on the interior sidewall corresponding with described antero posterior axis cutter hub of described casing, be provided with parting bead and dividing plate cutter hub with the interlaced engagement of described cutter hub, described dividing plate cutter hub is arranged on dividing plate, and dividing plate is connected with wall box by dividing plate fixed head.
9. heavy twin shaft steel scrap shredder according to claim 1, it is characterized in that: the four limit bodies of described casing for being formed by the side plate welding of four of front, rear, left and right, bottom at described casing is provided with discharging opening, and in described frame, both sides, front and back are provided with hanger.
10. heavy twin shaft steel scrap shredder according to claim 1, is characterized in that: described hydraulic motor is variable hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320499313.7U CN203508136U (en) | 2013-08-13 | 2013-08-13 | Heavy biaxial steel scrap shredding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320499313.7U CN203508136U (en) | 2013-08-13 | 2013-08-13 | Heavy biaxial steel scrap shredding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203508136U true CN203508136U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320499313.7U Expired - Fee Related CN203508136U (en) | 2013-08-13 | 2013-08-13 | Heavy biaxial steel scrap shredding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203508136U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368411A (en) * | 2013-08-13 | 2015-02-25 | 广州市联冠机械有限公司 | Heavy duty double-shaft scrap steel shredder |
| CN104630487A (en) * | 2015-01-29 | 2015-05-20 | 湖州织里荣华铝业有限公司 | Waste aluminum product crushing and recycling device |
| CN105149059A (en) * | 2015-09-06 | 2015-12-16 | 滁州市洪武报废汽车回收拆解利用有限公司 | Double-shaft waste vehicle skeleton shredding roller shaft device |
| CN105536953A (en) * | 2016-03-04 | 2016-05-04 | 广州市联冠机械有限公司 | Vortex scattering machine |
| CN106334611A (en) * | 2016-08-25 | 2017-01-18 | 广东隽诺环保科技股份有限公司 | Cutter structure of dual-shaft shredding machine |
| CN109201249A (en) * | 2018-09-19 | 2019-01-15 | 江阴市广福机械有限公司 | A kind of reinforcing bar breaking method and the reinforcing bar crushing plant using the breaking method |
| CN109954558A (en) * | 2019-04-19 | 2019-07-02 | 艾迪机器(杭州)有限公司 | A kind of safety-type kitchen garbage processing tapping equipment and implementation method |
| CN111282684A (en) * | 2020-03-06 | 2020-06-16 | 中山市昊瑞环保设备有限公司 | Double-shaft crusher |
| CN111375473A (en) * | 2020-04-20 | 2020-07-07 | 中山斯瑞德环保科技有限公司 | Cutter structure, knife roll and material crusher |
-
2013
- 2013-08-13 CN CN201320499313.7U patent/CN203508136U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368411A (en) * | 2013-08-13 | 2015-02-25 | 广州市联冠机械有限公司 | Heavy duty double-shaft scrap steel shredder |
| CN104630487A (en) * | 2015-01-29 | 2015-05-20 | 湖州织里荣华铝业有限公司 | Waste aluminum product crushing and recycling device |
| CN105149059A (en) * | 2015-09-06 | 2015-12-16 | 滁州市洪武报废汽车回收拆解利用有限公司 | Double-shaft waste vehicle skeleton shredding roller shaft device |
| CN105536953A (en) * | 2016-03-04 | 2016-05-04 | 广州市联冠机械有限公司 | Vortex scattering machine |
| CN105536953B (en) * | 2016-03-04 | 2018-07-27 | 广州市联冠机械有限公司 | A kind of vortex material scatter machine |
| CN106334611A (en) * | 2016-08-25 | 2017-01-18 | 广东隽诺环保科技股份有限公司 | Cutter structure of dual-shaft shredding machine |
| CN109201249A (en) * | 2018-09-19 | 2019-01-15 | 江阴市广福机械有限公司 | A kind of reinforcing bar breaking method and the reinforcing bar crushing plant using the breaking method |
| CN109954558A (en) * | 2019-04-19 | 2019-07-02 | 艾迪机器(杭州)有限公司 | A kind of safety-type kitchen garbage processing tapping equipment and implementation method |
| CN111282684A (en) * | 2020-03-06 | 2020-06-16 | 中山市昊瑞环保设备有限公司 | Double-shaft crusher |
| CN111375473A (en) * | 2020-04-20 | 2020-07-07 | 中山斯瑞德环保科技有限公司 | Cutter structure, knife roll and material crusher |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 |
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| CF01 | Termination of patent right due to non-payment of annual fee |