CN114602583B - Jaw crusher for large-scale iron mine - Google Patents
Jaw crusher for large-scale iron mine Download PDFInfo
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- CN114602583B CN114602583B CN202210125885.2A CN202210125885A CN114602583B CN 114602583 B CN114602583 B CN 114602583B CN 202210125885 A CN202210125885 A CN 202210125885A CN 114602583 B CN114602583 B CN 114602583B
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- plate
- jaw
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- installation shell
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
- B02C1/04—Jaw crushers or pulverisers with single-acting jaws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
- B02C1/025—Jaw clearance or overload control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention belongs to the technical field of crushers, and particularly relates to a jaw crusher for a large iron mine, which comprises a crusher body, wherein a first installation shell and a second installation shell are arranged in the crusher body, a static jaw plate and a dynamic jaw plate are respectively installed in the first installation shell and the second installation shell through a connecting assembly, one end of the first installation shell is provided with a push plate, one end of the push plate is rotatably provided with a threaded rod, the threaded rod extends to the outer side of the crusher body, the lower end of the first installation shell is hinged with a movable plate, and a connecting rod is hinged between the lower end of one side of the movable plate and the lower end of the push plate; according to the invention, the distance and the angle between the fixed jaw plate and the movable jaw plate are adjusted through the matching of the knob, the threaded rod and the push plate, so that the crushing requirements of workers on ores with different particle sizes are met, and the opening size of the movable jaw plate are adjusted through the matching of the push plate, the connecting rod movable plate and the movable jaw plate, so that the discharging effect is good, larger ores are intercepted, and the risk that the larger ores are discharged from a discharge port when not crushed is avoided.
Description
Technical Field
The invention belongs to the technical field of crushers, and particularly relates to a jaw crusher for a large iron mine.
Background
The jaw crusher is a crusher which is characterized in that a crushing cavity is formed by two jaw plates of a movable jaw and a static jaw, and the two jaws of an animal are simulated to move so as to finish material crushing operation. The jaw crusher series products have the characteristics of large crushing ratio, uniform product granularity, simple structure, reliable work, simple and convenient maintenance, economic operation cost and the like, so the jaw crusher series products are widely applied to various parts such as mines, smelting, building materials, highways, railways, water conservancy and chemical industries and the like.
The static jaw plate of the existing jaw crusher is mostly fixed on a rack and can not be adjusted, so that the included angle between the static jaw plate and the movable jaw plate is a fixed value, when iron ore is crushed, the distance and the included angle between the static jaw plate and the movable jaw plate can not be adjusted according to crushing requirements, the crushing effect is poor, and finally ore with the desired particle size can not be obtained.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a jaw crusher for a large iron mine.
In order to achieve the purpose, the invention adopts the following technical scheme:
a jaw crusher for large iron mines comprising: the flywheel type vibration reducer comprises a machine body, wherein a first installation shell and a second installation shell are arranged in the machine body, a static jaw and a movable jaw are respectively installed in the first installation shell and the second installation shell through connecting components, a flywheel is arranged at the upper end of the machine body, a movable rod is eccentrically arranged on the flywheel, one end, away from the flywheel, of the movable rod is hinged to the upper end of the second installation shell, a fixed seat is arranged on one side, close to the second installation shell, of the machine body, a toggle plate is arranged at the lower end of the second installation shell, the toggle plate is hinged to the second installation shell, a pull plate is arranged at the bottom end of the second installation shell, a first spring is arranged at one end, away from the second installation shell, of the pull plate, and the first spring is connected with the fixed seat;
a push plate is arranged at one end of the first mounting shell far away from the second mounting shell, a threaded rod is rotatably arranged at one end of the push plate far away from the first mounting shell, the threaded rod extends to the outer side of the machine body, the lower end of the first mounting shell is hinged with a movable plate, and a connecting rod is hinged between the lower end of one side of the movable plate and the lower end of the push plate.
Preferably, the fly leaf is close to movable jaw one side and is provided with broken tooth, the threaded rod runs through the end and is provided with the carousel, the push pedal is close to first installation shell one end and is provided with the ball.
Preferably, a conveyor is arranged above the feeding hole of the machine body, and a discharging hole is formed in the lower end of the machine body.
Preferably, first installation shell all is the spill with the second installation shell cross-section, all be provided with a plurality of second springs between quiet jaw and the first installation shell, between movable jaw and the second installation shell.
Preferably, the connecting assembly comprises a transverse moving piece and a fixing piece, the transverse moving piece and the fixing piece are arranged on the front side and the rear side of the movable jaw plate, the transverse moving piece comprises an inclined block, the inclined block is fixedly connected with the second installation shell, a moving groove is formed in the inclined block and is arc-shaped, a moving wheel is arranged on the front side of the movable jaw plate and is in rolling contact with the moving groove, the fixing piece comprises a sliding groove, a sleeve is arranged in the sliding groove in a sliding mode, a transverse moving rod is arranged in the sleeve in a sliding mode, a cross groove is formed in the rear side of the movable jaw plate, a third spring is fixedly arranged on one end of the transverse moving rod and the inner wall of the sleeve, the other end of the transverse moving rod extends out of the sleeve, a cross plate is fixedly connected with the extending end of the transverse moving rod, and the cross plate is clamped with the cross groove.
Preferably, the extending end of the transverse moving rod is sleeved with a lantern ring, and the lantern ring is fixedly connected with the movable jaw plate through a fixing bolt.
Preferably, the fixed part in the connecting assembly of the fixed jaw and the first mounting shell is positioned at the front side of the fixed jaw, and the cross member is positioned at the rear side of the fixed jaw, which is opposite to the position of the fixed part and the cross member in the movable jaw.
Preferably, push rods are arranged on the front sides of the transverse moving rods.
Compared with the prior art, the invention has the following technical effects:
according to the jaw crusher for the large-scale iron mine, the distance and the angle between the static jaw plate and the movable jaw plate are adjusted through the matching of the knob, the threaded rod and the push plate, the crushing requirements of workers on ores with different particle sizes are met, the crushing effect is good, the opening size of the movable jaw plate and the opening size of the movable jaw plate are adjusted through the matching of the push plate, the connecting rod movable plate and the movable jaw plate according to the particle size of the ores to be obtained, the outlet size is determined according to the crushed particle size, the discharging effect is good, large ores are intercepted, and the risk that the large ores are discharged from a discharge port when not crushed is avoided.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
Fig. 1 is a front view schematically illustrating a jaw crusher for a large iron mine according to an embodiment of the present invention;
FIG. 2 shows an enlarged schematic view of a movable plate provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic side view of the fixed jaw plate provided in accordance with an embodiment of the present invention in cooperation with a second mounting shell;
FIG. 4 is an enlarged schematic view of position A of FIG. 3;
FIG. 5 is an enlarged schematic view of position B of FIG. 3;
FIG. 6 is a schematic top view of a fixed jaw plate provided in accordance with an embodiment of the present invention in cooperation with a second mounting housing;
FIG. 7 is a schematic top view of a fixed jaw plate and a fixed jaw plate provided according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a swash block provided according to an embodiment of the present invention;
FIG. 9 illustrates a schematic front view of a movable plate provided in accordance with an embodiment of the present invention as the outlet is adjusted;
the reference numbers in the figures illustrate: 1. a body; 2. a flywheel; 3. a movable rod; 4. a first mounting case; 5. a stationary jaw plate; 6. a second mounting case; 7. a movable jaw plate; 8. a fixed seat; 9. a toggle plate; 10. pulling a plate; 11. a first spring; 12. pushing a plate; 13. a threaded rod; 14. a turntable; 15. a ball bearing; 16. a connecting rod; 17. a movable plate; 18. crushing teeth; 19. a sloping block; 20. a moving groove; 21. a moving wheel; 22. a second spring; 23. a chute; 24. a sleeve; 25. a traversing rod; 26. a cross groove; 27. a cross plate; 28. a third spring; 29. a collar; 30. fixing the bolt; 31. a push rod; 32. and (4) a discharge port.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified below by combining the specific drawings.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1:
referring to fig. 1, 2 and 9, in the present embodiment, there is provided a jaw crusher for a large iron mine, including: the engine body 1, a first installation shell 4 and a second installation shell 6 are arranged in the engine body 1, the upper end of the first installation shell 4 is hinged to the engine body 1, a fixed jaw 5 and a movable jaw 7 are respectively installed in the first installation shell 4 and the second installation shell 6 through connecting assemblies, a flywheel 2 is arranged at the upper end of the engine body 1, a movable rod 3 is eccentrically arranged on the flywheel 2, one end, far away from the flywheel 2, of the movable rod 3 is hinged to the upper end of the second installation shell 6, a fixed seat 8 is arranged on one side, close to the second installation shell 6, of the engine body 1, a toggle plate 9 is arranged at the lower end of the second installation shell 6, the toggle plate 9 is hinged to the second installation shell 6, a pull plate 10 is arranged at the bottom end of the second installation shell 6, a first spring 11 is arranged at one end, far away from the second installation shell 6, of the pull plate 10, and the first spring 11 is connected with the fixed seat 8;
Specifically, according to the size of the required mineral, the knob is rotated to drive the threaded rod 13 to rotate, the push plate 12 is transversely moved, and the first mounting shell 4 is rotated, so that the distance and the angle between the static jaw plate 5 and the movable jaw plate 7 are adjusted, during specific operation, when the iron ore with larger particles needs to be crushed, the distance between the static jaw plate 5 and the movable jaw plate 7 is adjusted to be increased, the granularity of the crushed ore is larger, when the iron ore with smaller particles needs to be crushed, the distance between the static jaw plate 5 and the movable jaw plate 7 is adjusted to be reduced, the granularity of the finally crushed iron ore is smaller, the crushing requirements of workers on the ores with different particle sizes are met, and the crushing effect is good;
when the push plate 12 moves, the movable plate 17 rotates through the connecting rod 16, when iron ore with larger particles is needed to be crushed, the distance between the fixed jaw plate 5 and the movable jaw plate 7 is adjusted to be increased, the push plate 12 moves towards two sides, the movable plate 17 is turned over towards the direction far away from the movable jaw plate 7 through the connecting rod 16, the horizontal stroke of an opening is larger, the requirement of discharging large-particle ore is met, when iron ore with smaller particles is needed to be crushed, the distance between the fixed jaw plate 5 and the movable jaw plate 7 is reduced, the movable plate 17 is turned over towards the direction close to the movable jaw plate 7 through the connecting rod 16 by the push plate 12, the horizontal stroke of the opening is reduced, and the requirement of discharging small-particle iron ore is met.
In this embodiment, the movable plate 17 is provided with crushing teeth 18 on the side close to the movable jaw 7, the threaded rod 13 is provided with a rotary disc 14 at the penetrating end, and the push plate 12 is provided with balls 15 at the end close to the first mounting shell 4 for reducing friction.
When the movable plate 17 is matched with the movable jaw plate 7 to intercept uncrushed (larger) ores, and when the movable jaw plate 7 moves next time, the movable jaw plate is matched with the crushing teeth 18 on the movable plate 17 to crush the ores at an outlet, so that the crushing effect is good, the internal blockage of the machine body 1 is avoided, and the crushing efficiency is improved.
In this embodiment, a conveyor is arranged above the feeding hole of the machine body 1, and a discharging hole 32 is arranged at the lower end of the machine body 1.
Example 2:
referring to fig. 1 and 3-8, on the basis of embodiment 1, in this embodiment, the cross sections of the first mounting shell 4 and the second mounting shell 6 are both concave, and a plurality of second springs 22 are disposed between the fixed jaw 5 and the first mounting shell 4, and between the movable jaw 7 and the second mounting shell 6.
In this embodiment, the connecting assembly includes a transverse moving member and a fixing member, which are disposed on the front and rear sides of the movable jaw 7, the transverse moving member includes an inclined block 19, the inclined block 19 is fixedly connected to the second mounting housing 6, a moving groove 20 is formed in the inclined block 19, the moving groove 20 is arc-shaped, the moving groove 20 not only improves a moving track of the moving wheel 21, but also limits the moving groove 20, when the moving wheel 21 is located in the moving groove 20, the moving wheel 21 can only move in the moving groove 20, the front side of the movable jaw 7 is provided with the moving wheel 21, the moving wheel 21 is in rolling contact with the moving groove 20, the fixing member includes a sliding groove 23, a sleeve 24 is slidably disposed in the sliding groove 23, a transverse moving rod 25 is slidably disposed in the sleeve 24, a cross groove 26 is formed in the rear side of the movable jaw 7, a third spring 28 is fixedly disposed on one end of the transverse rod 25 and an inner wall of the sleeve 24, the other end of the sleeve 24 extends out of the sleeve 24, a cross plate 27 is fixedly connected to an extension end of the sleeve, and the cross plate 27 is clamped with the cross groove 26.
Specifically, the flywheel 2 drives the movable rod 3 to rotate, the movable rod 3 drives the second mounting shell 6 to move, the second mounting shell 6 drives the movable jaw plate 7 to move to be matched with the fixed jaw plate 5 to impact and crush iron ore horizontally, when the ore touches the fixed jaw plate 5 and the movable jaw plate 7, the fixed jaw plate 5 and the movable jaw plate 7 move in the first mounting shell 4 and the second mounting shell 6 respectively, the second spring 22 contracts, when the fixed jaw plate 5 and the movable jaw plate 7 move horizontally, the fixed jaw plate 5 and the movable jaw plate 7 move horizontally and move back and forth on the right through matching of the moving wheel 21, the inclined block 19 and the moving groove 20, and the fixed jaw plate 5 and the movable jaw plate 7 move backwards and forwards, and the fixed jaw plate 5 and the movable jaw plate 7 are staggered due to the fact that the mounting positions of a fixing piece and a transverse moving piece in the movable jaw plate 7 are opposite, so that the movable jaw plate 7 moves backwards and the fixed jaw plate 5 moves forwards, the crushing effect on the ore is further improved, and the crushing phase rate is improved;
when the fixed jaw plate 5 and the movable jaw plate 7 move, the sleeve 24 moves in the sliding groove 23, the cross rod 25 moves in the sleeve 24, the third spring 28 contracts, the sliding groove 23, the sleeve 24, the cross rod 25, the third spring 28, the cross groove 26 and the cross plate 27 are arranged, so that the fixed jaw plate 5 and the movable jaw plate 7 can move back and forth and can be broken stably, and the sliding groove 23, the sleeve 24, the cross rod 25, the third spring 28, the cross groove 26, the cross plate 27 and the push rod 31 are arranged, so that the fixed jaw plate 5 and the movable jaw plate 7 can be conveniently mounted and dismounted.
In the embodiment, the extended end of the traverse rod 25 is sleeved with a collar 29, and the collar 29 is fixedly connected with the movable jaw 7 through a fixed bolt 30.
To further fix the stationary jaw 5 and the movable jaw 7, the fixing bolt 30 is tightened after the cross plate 27 is inserted into the cross groove 26.
In this embodiment, in order to make the fixed jaw 5 and the movable jaw 7 to break the iron ore alternately, the fixed part of the connecting assembly of the fixed jaw 5 and the first mounting shell is located on the front side of the fixed jaw 5, and the cross member is located on the rear side of the fixed jaw 5, which is opposite to the position of the fixed part and the cross member of the movable jaw 7.
In the present embodiment, push rods 31 are provided on the front sides of the traverse rods 25.
The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a large-scale jaw breaker for iron mine which characterized in that includes: the flywheel type motor is characterized by comprising a machine body (1), wherein a first installation shell (4) and a second installation shell (6) are arranged in the machine body (1), a static jaw plate (5) and a movable jaw plate (7) are respectively installed in the first installation shell (4) and the second installation shell (6) through connecting assemblies, a flywheel (2) is arranged at the upper end of the machine body (1), a movable rod (3) is eccentrically arranged on the flywheel (2), one end, far away from the flywheel (2), of the movable rod (3) is hinged to the upper end of the second installation shell (6), a fixing seat (8) is arranged on one side, close to the second installation shell (6), of the machine body (1), a toggle plate (9) is arranged at the lower end of the second installation shell (6), the toggle plate (9) is hinged to the second installation shell (6), a pull plate (10) is arranged at the bottom end of the second installation shell (6), a first spring (11) is arranged at one end of the pull plate (10), and the first spring (11) is connected with the fixing seat (8);
a push plate (12) is arranged at one end, far away from the second mounting shell (6), of the first mounting shell (4), a threaded rod (13) is rotatably mounted at one end, far away from the first mounting shell (4), of the push plate (12), the threaded rod (13) extends to the outer side of the machine body (1), the penetrating position of the threaded rod is in threaded connection, a movable plate (17) is hinged to the lower end of the first mounting shell (4), and a connecting rod (16) is hinged between the lower end of one side of the movable plate (17) and the lower end of the push plate (12);
the connecting assembly comprises a transverse moving piece and a fixing piece, the transverse moving piece is arranged on the front side and the rear side of a movable jaw plate (7) and comprises an inclined block (19), the inclined block (19) is fixedly connected with a second mounting shell (6), a moving groove (20) is formed in the inclined block (19), the moving groove (20) is arc-shaped, a moving wheel (21) is arranged on the front side of the movable jaw plate (7), the moving wheel (21) is in rolling contact with the moving groove (20), the fixing piece comprises a sliding groove (23), a sleeve (24) is arranged in the sliding groove (23), a transverse moving rod (25) is arranged in the sleeve (24) in a sliding mode, a cross groove (26) is formed in the rear side of the movable jaw plate (7), a third spring (28) is fixedly arranged on one end of the transverse moving rod (25) and the inner wall of the sleeve (24), the other end of the transverse moving rod extends out of the sleeve (24), a cross plate (27) is fixedly connected with an extending end of the cross plate (27), and the cross plate (27) is clamped with the cross groove (26).
2. The jaw crusher for the large-scale iron mine according to claim 1, characterized in that the movable plate (17) is provided with crushing teeth (18) on one side close to the movable jaw (7), the threaded rod (13) is provided with a rotary disc (14) at the penetrating end, and the push plate (12) is provided with balls (15) on one end close to the first mounting shell (4).
3. The jaw crusher for large iron mines according to claim 1, characterized in that the lower end of the machine body (1) is provided with a discharge outlet (32).
4. The jaw crusher for the large-scale iron mine according to claim 1, wherein the cross sections of the first mounting shell (4) and the second mounting shell (6) are concave, and a plurality of second springs (22) are arranged between the fixed jaw plate (5) and the first mounting shell (4) and between the movable jaw plate (7) and the second mounting shell (6).
5. The jaw crusher for large iron mines as claimed in claim 1, wherein the extended end of the traverse rod (25) is sleeved with a collar (29), and the collar (29) is fixedly connected with the movable jaw plate (7) through a fixing bolt (30).
6. The jaw crusher for large iron mines according to claim 1, wherein the fixed part of the connecting assembly of the fixed jaw (5) and the first mounting shell (4) is located at the front side of the fixed jaw (5), and the cross member is located at the rear side of the fixed jaw (5).
7. The jaw crusher for large iron mines according to claim 1, wherein push rods (31) are provided at the front side of the traverse rod (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210125885.2A CN114602583B (en) | 2022-02-10 | 2022-02-10 | Jaw crusher for large-scale iron mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210125885.2A CN114602583B (en) | 2022-02-10 | 2022-02-10 | Jaw crusher for large-scale iron mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114602583A CN114602583A (en) | 2022-06-10 |
| CN114602583B true CN114602583B (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210125885.2A Active CN114602583B (en) | 2022-02-10 | 2022-02-10 | Jaw crusher for large-scale iron mine |
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| CN (1) | CN114602583B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116237111B (en) * | 2023-03-30 | 2024-05-14 | 绍兴君鸿智能科技有限公司 | Automatic soil crushing and cleaning system for soil detection |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2052289C1 (en) * | 1993-09-07 | 1996-01-20 | Евгений Николаевич Едапин | Jaw crusher |
| CN102580809B (en) * | 2012-01-04 | 2015-07-15 | 义乌市黑白矿山机械有限公司 | Crusher with double movable jaw type composite multicrank rocker mechanism |
| CN207085995U (en) * | 2017-06-30 | 2018-03-13 | 杭州龙云水利机械制造有限公司 | The crushing shell of jaw crusher |
| CN109847832A (en) * | 2019-03-06 | 2019-06-07 | 广州市丹爵通讯科技有限公司 | A kind of environment-friendly type jaw crushing equipment with reduction ratio regulatory function |
| CN110215952A (en) * | 2019-06-24 | 2019-09-10 | 广州百士臣科技有限公司 | A kind of damping type jaw crusher with regulatory function for ore dressing |
| CN211385143U (en) * | 2019-10-16 | 2020-09-01 | 湖北永燃机械制造股份有限公司 | Effectual jaw breaker of shock attenuation |
| CN211887026U (en) * | 2019-11-26 | 2020-11-10 | 河南龙佰智能装备制造有限公司 | Jaw crusher |
| CN214487041U (en) * | 2020-12-30 | 2021-10-26 | 内蒙古金中矿业有限公司 | Jaw crusher lining plate |
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2022
- 2022-02-10 CN CN202210125885.2A patent/CN114602583B/en active Active
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