CN117380344A - Crushing equipment for cement production - Google Patents
Crushing equipment for cement production Download PDFInfo
- Publication number
- CN117380344A CN117380344A CN202311678516.7A CN202311678516A CN117380344A CN 117380344 A CN117380344 A CN 117380344A CN 202311678516 A CN202311678516 A CN 202311678516A CN 117380344 A CN117380344 A CN 117380344A
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- CN
- China
- Prior art keywords
- crushing
- crushing roller
- cavity
- gear
- driving
- 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.)
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- 239000004568 cement Substances 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 238000007599 discharging Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 210000004210 tooth component Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/16—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs with milling members essentially having different peripheral speeds and in the form of a hollow cylinder or cone and an internal roller or cone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/006—Ring or disc drive gear arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of crushing, and particularly discloses crushing equipment for cement production, which comprises a machine shell, wherein a first crushing cavity is arranged in the machine shell, a first crushing roller is rotationally connected in the first crushing cavity, the first crushing roller is eccentrically arranged, a second crushing cavity is arranged in the first crushing roller, a second crushing roller is rotationally connected in the second crushing cavity, and the second crushing roller is eccentrically arranged; the first crushing roller is provided with a material passing opening communicated with the first crushing cavity and the second crushing cavity, a first sieve plate is connected to the material passing opening, and the first sieve plate is connected with a second sieve plate in a sliding manner; the first crushing roller is elastically connected with a rake tooth assembly, and the rake tooth assembly comprises a base, a first rake tooth and a second rake tooth which is connected to the base in a sliding manner; the shell is provided with a first driving component and an adjusting component, and the adjusting component drives the second rake teeth and the second sieve plate to slide; the crushing equipment for cement production provided by the invention has the effect that the same crushing equipment can meet the requirements of two crushing precision.
Description
Technical Field
The invention relates to the technical field of crushing, in particular to crushing equipment for cement production.
Background
In the cement production process, most of raw materials such as limestone, clay, iron ore, coal and the like are crushed. However, the final product crushed by the conventional crushing equipment is often uneven and uneven in particles, so that the screening working steps are additionally required, and the working procedures and the labor consumption are increased.
The Chinese patent with publication number of CN113856823B discloses a waste cement block crushing device and a crushing method for cement production, wherein the crushing device comprises a base body and an upper shell, the upper shell is matched and installed on an opening formed in the base body, a columnar cavity is formed between the base body and the upper shell, a discharging cavity is formed in the base body, the discharging cavity is separated from the columnar cavity through a filter plate, the bottom surface of the discharging cavity is an inclined surface, a discharging hole communicated with the discharging cavity is formed in the base body, a rotating part is rotatably installed in the cylindrical cavity, a power mechanism for driving the rotating part is installed on the base body, and a convex column is arranged on the rotating part.
Above-mentioned technical scheme strikes with stretching into the inside cement board bottom of arc casing through the projection on the rotation portion, accomplishes the breakage to cement board bottom, and qualified broken granule gets into the discharge gate through the filter plate and discharges from the discharge gate through the discharge chamber, and unqualified broken granule continues to break in the column cavity. The technical scheme solves the problem of uneven crushing of particles, but can only meet the same crushing precision, and when raw materials with different crushing precision are needed, crushing equipment needs to be replaced.
Accordingly, there is a need in the art for a crushing plant for cement production to solve the above problems.
Disclosure of Invention
The invention provides crushing equipment for cement production, and aims to solve the problem that a crushing device in the related art can only meet the same crushing precision.
The invention relates to crushing equipment for cement production, which comprises a machine shell, wherein a first crushing cavity is arranged in the machine shell, a first crushing roller is rotationally connected in the first crushing cavity, a feeding hole is formed in the top of the machine shell at one side of the first crushing roller, a discharging hole is formed in the bottom of the machine shell, a door body is arranged at the discharging hole, the first crushing roller is eccentrically arranged, a second crushing cavity is arranged in the first crushing roller, a second crushing roller is rotationally connected in the second crushing cavity, the second crushing roller is eccentrically arranged, and the first crushing roller and the second crushing roller are not coaxial;
the first crushing roller is provided with a material passing opening communicated with the first crushing cavity and the second crushing cavity, a first sieve plate is fixedly connected to the material passing opening, a second sieve plate is connected to the first sieve plate in a sliding manner, and material passing holes are respectively formed in the first sieve plate and the second sieve plate;
the first crushing roller is elastically connected with a rake tooth assembly, and the rake tooth assembly comprises a base, a first rake tooth fixedly connected to the base and a second rake tooth slidingly connected to the base;
the rake teeth assembly and the material passing opening are sequentially arranged along the rotation direction of the first crushing roller, the rake teeth assembly is propped against the cavity wall of the first crushing cavity, the shell is provided with a first driving assembly and an adjusting assembly, the first driving assembly drives the first crushing roller and the second crushing roller to rotate, and the adjusting assembly drives the second rake teeth and the second screen plate to slide.
Preferably, two ends of the first crushing roller are respectively connected with a first eccentric shaft and a first supporting shaft which are coaxially arranged, the first eccentric shaft is fixedly connected with the first crushing roller and is rotationally connected with the machine shell, the first supporting shaft is rotationally connected with the first crushing roller and is fixedly connected with the machine shell, and a first gear is fixedly connected on the first supporting shaft;
the two ends of the second crushing roller are respectively and fixedly connected with a second eccentric shaft and a second supporting shaft which are coaxially arranged, the second crushing roller is eccentrically and rotatably connected with the first crushing roller through the second eccentric shaft and the second supporting shaft, the side wall of the second crushing roller is rotatably connected with a transmission gear, the second supporting shaft is connected with a second gear, and the transmission gear is respectively meshed with the first gear and the second gear;
the first driving component drives the first eccentric shaft to rotate.
Preferably, the adjusting component comprises an electric push rod and a deflector rod, the electric push rod is fixedly connected to the shell, and the deflector rod is fixedly connected with the driving end of the electric push rod;
the second gear is in sliding connection with the second support shaft along the axial direction of the second support shaft, the second rake teeth are fixedly connected with the second sieve plate, one end of the deflector rod is fixedly connected with the second rake teeth, the other end of the deflector rod is provided with a U-shaped fork plate, and two side plates of the U-shaped fork plate are respectively positioned at two sides of the second gear and are attached to the second gear;
the electric push rod drives the deflector rod to drive the second gear to be meshed with the transmission gear, and simultaneously drives the second rake teeth to be staggered with the first rake teeth, and the second sieve plate is correspondingly communicated with the material passing holes on the first sieve plate.
Preferably, a third gear is fixedly connected to the first supporting shaft, the third gear is located at one side, far away from the first crushing roller, of the first gear, the electric push rod drives the deflector rod to drive the second gear to mesh with the third gear and simultaneously drive the second rake teeth to overlap with the first rake teeth, and the second sieve plate seals the material passing holes in the first sieve plate;
the first support shaft and the first eccentric shaft are respectively connected with support legs which are vertically distributed, and the bottoms of the support legs are elastically connected with the casing.
Preferably, the first crushing chamber is provided with a first crushing portion and a second crushing portion along the chamber wall arranged on the outer circumferential surface of the first crushing roller at two sides of the feed inlet, and the vertical distance between any point on the outer circumferential surface of the first crushing roller and the first crushing portion and the second crushing portion is smaller than the vertical distance between the point and other parts of the chamber wall arranged on the outer circumferential surface of the first crushing roller along the first crushing chamber.
Preferably, the first crushing roller is internally provided with a material passing cavity, the material passing cavity is positioned at the periphery of the second crushing cavity, the first crushing roller is provided with a first blanking port and a second blanking port, the first blanking port is positioned at the rear side of the rake tooth assembly along the rotation direction of the first crushing roller, the material passing cavity is respectively communicated with the first blanking port and the second blanking port, the first blanking port is elastically connected with a baffle, and the baffle is propped against the cavity wall of the first crushing cavity.
Preferably, the first driving assembly comprises a driving motor, a first driving wheel, a second driving wheel and a driving belt, wherein the first driving wheel is fixedly connected with the driving end of the driving motor, the second driving wheel is fixedly connected with the first eccentric shaft, and the first driving wheel is in driving connection with the second driving wheel through the driving belt.
Preferably, the door body is rotatably connected with the casing, and a second driving assembly for driving the door body to open and close is arranged on the casing.
Preferably, the second driving component comprises a torsion spring and a limiting block, the torsion spring is arranged between a rotating shaft of the door body and the casing, the casing is provided with a sliding groove, the limiting block is slidably connected in the sliding groove and is elastically connected with the sliding groove, the sliding groove is communicated with the first crushing cavity, a part of the structure of the limiting block is positioned in the first crushing cavity, the limiting block faces towards one end of the door body, the door body faces towards one end of the limiting block, the limiting groove is formed in one end of the door body, the rake tooth component extrudes the limiting block towards the sliding groove, when the limiting block moves inwards, the part of the limiting block, which is provided with the inclined wedge surface, is separated from the limiting groove, and crushed materials are extruded into the door body to be opened.
The beneficial effects of the invention are as follows: the first crushing roller eccentrically rotates in the first crushing cavity, so that one crushing precision is met, the second crushing roller eccentrically rotates in the second crushing cavity, the other crushing precision is met, and the effect that the same crushing equipment can meet the requirements of two crushing precision is realized; moreover, when the second crushing roller is required to work and finer crushed particles are obtained, the first crushing roller and the second crushing roller work simultaneously, so that the crushing efficiency is improved; in addition, in the crushing process, the rake teeth assembly can filter and screen materials meeting the crushing precision requirement, and qualified crushing particles can be discharged out of the crushing equipment as soon as possible while the workload of the crushing equipment is reduced.
Drawings
FIG. 1 is a schematic view showing the overall structure of a crushing apparatus for cement production according to the present invention.
Fig. 2 is a cross-sectional view of a crushing apparatus for cement production according to the present invention.
Fig. 3 is a cross-sectional view of a first crushing roller and a second crushing roller of a crushing apparatus for cement production according to the present invention.
Fig. 4 is a second cross-sectional view of a crushing apparatus for cement production according to the present invention.
Fig. 5 is a partial construction view of a crushing plant for cement production according to the present invention, when the second gear and the third gear are engaged.
Fig. 6 is a schematic view of the structure of the first crushing roller of the crushing apparatus for cement production according to the present invention when the tine assemblies are overlapped.
Fig. 7 is a sectional view of a first crushing roller of a crushing plant for cement production according to the invention.
Fig. 8 is a schematic view of the structure of the first crushing roller of the crushing apparatus for cement production according to the present invention when the tine assemblies are staggered.
Fig. 9 is a sectional view of a door body of a crushing apparatus for cement production according to the present invention.
Reference numerals:
1. a housing; 11. a first crushing chamber; 111. a first crushing section; 112. a second crushing section; 12. a feed inlet; 13. a first spring; 14. support legs; 15. a chute; 16. a limiting block; 17. a fourth spring; 2. a first crushing roller; 21. a first eccentric shaft; 22. a first support shaft; 23. a first gear; 24. a third gear; 25. a second crushing chamber; 26. a material passing opening; 27. a material passing cavity; 271. a first blanking port; 272. a second blanking port; 28. a mounting plate; 281. a baffle; 29. a third spring; 3. a door body; 31. a limit groove; 4. a driving motor; 41. a first driving wheel; 42. a second driving wheel; 43. a transmission belt; 5. a second crushing roller; 51. a second eccentric shaft; 52. a second support shaft; 53. a transmission gear; 54. a second gear; 6. a first screen plate; 61. a second screen plate; 62. a material passing hole; 7. a base; 71. a first tine; 72. a second tine; 73. a second spring; 8. a deflector rod; 81. u-shaped fork plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1 to 9, the crushing equipment for cement production of the invention comprises a casing 1, wherein a first crushing cavity 11 is arranged in the casing 1, a first crushing roller 2 is connected in a rotary manner in the first crushing cavity 11, the axial direction of the first crushing roller 2 is defined as the front-back direction, a feed inlet 12 is formed in the position, close to the left side, of the top of the casing 1, a discharge outlet is formed in the bottom of the casing, and a door body 3 is arranged at the discharge outlet.
The first crushing roller 2 is eccentrically arranged, two ends of the first crushing roller 2 are respectively connected with a first eccentric shaft 21 and a first supporting shaft 22 which are coaxially arranged, the first eccentric shaft 21 is fixedly connected with the first crushing roller 2, and the first supporting shaft 22 is rotatably connected with the first crushing roller 2. The front side and the rear side of the casing 1 are respectively connected with supporting legs 14 through first springs 13, a first eccentric shaft 21 is rotationally connected with the corresponding supporting legs 14, and a first supporting shaft 22 is fixedly connected with the corresponding supporting legs 14. The first support shaft 22 is fixedly connected with a first gear 23 and a third gear 24, and the third gear 24 is positioned at one side of the first gear 23 away from the first crushing roller 2, i.e. at the rear side of the first gear 23.
The casing 1 is provided with a first driving assembly, the first driving assembly comprises a driving motor 4, a first driving wheel 41, a second driving wheel 42 and a driving belt 43, the first driving wheel 41 is fixedly connected with the driving end of the driving motor 4, the second driving wheel 42 is fixedly connected with the first eccentric shaft 21, and the first driving wheel 41 is in transmission connection with the second driving wheel 42 through the driving belt 43. The driving motor 4 drives the first eccentric shaft 21 and the first crushing roller 2 to rotate through the first driving wheel 41, the driving belt 43 and the second driving wheel 42.
As shown in fig. 2 to 5, a second crushing chamber 25 is provided in the first crushing roller 2, the second crushing roller 5 is rotatably connected to the second crushing chamber 25, the second crushing roller 5 is eccentrically disposed, the first crushing roller 2 and the second crushing roller 5 are not coaxial, and the minimum distance between the outer circumferential surface of the first crushing roller 2 and the first crushing chamber 11 is larger than the minimum distance between the outer circumferential surface of the second crushing roller 5 and the second crushing chamber 25. The two ends of the second crushing roller 5 are respectively and fixedly connected with a second eccentric shaft 51 and a second supporting shaft 52 which are coaxially arranged, and the second crushing roller 5 is rotationally connected with the side wall of the first crushing roller 2 through the second eccentric shaft 51 and the second supporting shaft 52. The side wall of the second crushing roller 5 is rotatably connected with a transmission gear 53, the transmission gear 53 is meshed with the first gear 23, and the second support shaft 52 is connected with a second gear 54.
As shown in fig. 2 and fig. 6 to fig. 8, the first crushing roller 2 is provided with a material passing hole 26 communicated with the first crushing cavity 11 and the second crushing cavity 25, the material passing hole 26 is fixedly connected with a first screen plate 6, the first screen plate 6 is slidably connected with a second screen plate 61 along the front-back direction, and a plurality of material passing holes 62 are uniformly formed in the first screen plate 6 and the second screen plate 61 at intervals respectively.
The first crushing roller 2 is elastically connected with a rake tooth assembly, the rake tooth assembly comprises a base 7, a first rake tooth 71 fixedly connected to the base 7 and a second rake tooth 72 slidably connected to the base 7 along the axial direction of the first crushing roller 2, the base 7 is connected with the first crushing roller 2 through a second spring 73, and the second spring 73 presses the first rake tooth 71 and the second rake tooth 72 to abut against the cavity wall of the first crushing cavity 11 through the base 7. The rake tooth assemblies and the feed gap 26 are arranged in sequence in the direction of rotation of the first crushing roller 2, i.e. the rake tooth assemblies are located at the rear side of the feed gap 26 in the direction of rotation of the first crushing roller 2.
As shown in fig. 4 and 5, the casing 1 is provided with an adjusting assembly, the adjusting assembly includes an electric push rod (not shown in the drawings) and a driving lever 8, the electric push rod is fixedly connected to the casing 1, and the driving lever 8 is fixedly connected to the driving end of the electric push rod. The second gear 54 is slidably connected with the second support shaft 52 along the axial direction of the second support shaft 52, the second rake teeth 72 are fixedly connected with the second screen plate 61, one end of the deflector rod 8 is fixedly connected with the second rake teeth 72, the other end of the deflector rod 8 is provided with a U-shaped fork plate 81, and two side plates of the U-shaped fork plate 81 are respectively positioned on two sides of the second gear 54 and are attached to the second gear 54.
As shown in fig. 2 and 7, the first crushing roller 2 is provided with a material passing cavity 27, the material passing cavity 27 is located at the periphery of the second crushing cavity 25, the first crushing roller 2 is provided with a first blanking port 271 and a second blanking port 272, and the first blanking port 271 is located at the rear side of the rake teeth assembly along the rotation direction of the first crushing roller 2. The material passing cavity 27 is respectively communicated with the first blanking port 271 and the second blanking port 272, a mounting plate 28 is outwards extended at the first blanking port 271, a baffle 281 is slidably connected in the mounting plate 28 along the radial direction of the first crushing roller 2, the baffle 281 is elastically connected with the mounting plate 28 through a third spring 29, and the third spring 29 presses the baffle 281 to abut against the cavity wall of the first crushing cavity 11. Part of qualified materials screened by the rake teeth assembly enter the material passing cavity 27 through the first blanking port 271, and fall to the door body 3 from the second blanking port 272 along with the rotation of the first crushing roller 2.
When the electric push rod drives the deflector rod 8 to drive the second gear 54 to slide along the second supporting shaft 52 and mesh with the transmission gear 53, the deflector rod 8 simultaneously drives the second rake teeth 72 to be staggered with the first rake teeth 71, and the second sieve plate 61 is correspondingly communicated with the material passing holes 62 on the first sieve plate 6. At this time, the first crushing roller 2 and the second crushing roller 5 are rotated reversely, the first crushing roller 2 crushes the material in the first crushing chamber 11, and the second crushing roller 5 crushes the material entering the second crushing chamber 25 through the material passing hole 62.
When the electric push rod drives the deflector rod 8 to drive the second gear 54 to slide along the second supporting shaft 52 and mesh with the third gear 24, the deflector rod 8 simultaneously drives the second rake teeth 72 to overlap with the first rake teeth 71, and the second sieve plate 61 seals the material passing holes 62 on the first sieve plate 6. At this time, the first crushing roller 2 and the second crushing roller 5 rotate in the same direction, and the second crushing roller 5 transmits the force generated by eccentric rotation to the first crushing roller 2, so that the first crushing roller 2 vibrates, and the qualified materials in the material passing cavity 27 of the first crushing roller 2 are discharged.
With continued reference to fig. 2, the first crushing chamber 11 has a first crushing portion 111 and a second crushing portion 112 formed on both left and right sides of the feed port 12, respectively, of a chamber wall disposed along the outer circumferential surface of the first crushing roller 2. The vertical distance between any point on the outer circumferential surface of the first crushing roller 2 and the first crushing portion 111 and the second crushing portion 112 is smaller than the vertical distance between this point and other parts of the chamber wall of the first crushing chamber 11 that run along the outer circumferential surface of the first crushing roller 2. I.e. two positions between the first crushing roller 2 and the first crushing chamber 11, at which crushing of the material can be performed, are provided during rotation of the first crushing roller.
As shown in fig. 2 and 9, the right end of the door body 3 is rotatably connected with the casing 1, and a second driving assembly for driving the door body 3 to open and close is provided on the casing 1, and the second driving assembly includes a torsion spring (not shown in the drawings) and a limiting block 16. The casing 1 is provided with a chute 15 on the left side of the door body 3, and a limiting block 16 is slidably connected in the chute 15 along the left-right direction and is elastically connected with the chute 15 through a fourth spring 17. The right position of the top of the chute 15 is communicated with the first crushing cavity 11, and part of the structure penetrating through the communicating part of the limiting block 16 is positioned in the first crushing cavity 11. The stopper 16 is provided with the slide wedge face towards the one end bottom of door body 3, and limit groove 31 has been seted up towards the one end of stopper 16 to the door body 3. The torsion spring is arranged between the rotating shaft of the door body 3 and the shell 1. When the door body 3 is closed, the part of the limiting block 16 provided with the inclined wedge surface is positioned in the limiting groove 31 of the door body 3.
In the process of the rotation of the first crushing roller 2, the rake tooth assembly can be in contact with the limiting block 16, and the limiting block 16 is extruded along the sliding groove 15 to move leftwards along with the rotation of the first crushing roller 2, so that the part of the limiting block 16, which is provided with the inclined wedge surface, is separated from the limiting groove 31, and the qualified material above the door body 3 extrudes the door body 3 to rotate downwards for opening. After the rake tooth assembly rotates, the limiting block 16 is reset under the resilience force of the fourth spring 17, after qualified materials are discharged, the door body 3 extrudes the limiting block 16 to move leftwards along the limiting groove 31 under the resilience force of the torsion spring through the inclined wedge surface of the limiting block 16 until the limiting groove 31 of the door body 3 is aligned with the right end of the limiting block 16, and the fourth spring 17 pushes the limiting block 16 to move rightwards so that the part of the limiting block 16 provided with the inclined wedge surface is positioned in the limiting groove 31.
The concrete working principle of the crushing equipment for cement production is as follows: in the initial state, the rake teeth assembly is positioned at the left side of the feed inlet 12, the electric push rod is in a contracted state, and the second gear 54 on the second support shaft 52 is meshed with the third gear 24 on the first support shaft 22;
the method comprises the steps that materials are thrown into a feed port 12 through an external quantity control device, a driving motor 4 is started, the driving motor 4 drives a first eccentric shaft 21 and a first crushing roller 2 to rotate clockwise through a first driving wheel 41, a driving belt 43 and a second driving wheel 42, a rake tooth assembly on the first crushing roller 2 drives the materials to rotate clockwise to a first crushing part 111 on the right side of the feed port 12 for crushing, the crushed materials fall to the bottom of a first crushing cavity 11, along with the rotation of the first crushing roller 2, the rake tooth assembly filters the materials at the bottom of the first crushing cavity 11, part of qualified materials pass through gaps between the first rake teeth 71 and the second rake teeth 72 and still remain at the bottom, other materials are taken away by the rake tooth assembly, in the rotation process of the rake tooth assembly, a limiting block 16 is pushed to move to cancel limiting of a door body 3, the door body 3 is opened to discharge the qualified materials, and then the door body 3 is closed under the action of a torsion spring;
the materials carried away by the rake teeth assembly are secondarily crushed when moving to the second crushing part 112, the qualified materials after crushing fall to the baffle 281 from the gaps between the first rake teeth 71 and the second rake teeth 72 and enter the passing cavity 27 through the first blanking port 271, the situation that the falling to the bottom of the first crushing cavity 11 affects the closing of the door body 3 is avoided, the unqualified materials after secondary crushing continue to move to the first crushing part 111 to be crushed along with the rake teeth assembly, and in the process of rotating the first crushing roller 2, the qualified materials in the passing cavity 27 are discharged to the bottom of the first crushing cavity 11 from the second blanking port 272;
in the clockwise rotation process of the first crushing roller 2, the second crushing roller 5 rotationally connected with the first crushing roller 2 rotates clockwise along with the first crushing roller 2, and meanwhile, the second gear 54 on the second support shaft 52 rotates clockwise around the third gear 24 on the first support shaft 22, so that the second crushing roller 5 is driven to rotate clockwise, acting force generated by eccentric rotation of the second crushing roller 5 in the first crushing roller 2 is transmitted to the first crushing roller 2, the first crushing roller 2 vibrates, and qualified materials in the material passing cavity 27 are discharged conveniently.
When smaller particles are required to be crushed, an electric push rod is started, the electric push rod pushes a deflector rod 8 to drive a second gear 54 on a second support shaft 52 to slide forwards and to be meshed with a transmission gear 53, meanwhile, the deflector rod 8 drives a second sieve plate 61 and a second rake tooth 72 to slide forwards, the second sieve plate 61 is correspondingly communicated with a passing hole 62 on a first sieve plate 6, and the second rake tooth 72 is staggered with the first rake tooth 71, so that the gap between the first rake tooth 71 and the second rake tooth 72 is reduced;
since the second gear 54 is meshed with the transmission gear 53, the transmission gear 53 is meshed with the first gear 23 on the first support shaft 22, the first crushing roller 2 drives the second crushing roller 5 to rotate clockwise in the clockwise rotation process, the transmission gear 53 rotationally connected with the second crushing roller 5 rotates clockwise around the first gear 23, the transmission gear 53 drives the second gear 54 to rotate anticlockwise, the second gear 54 drives the second support shaft 52 and the second crushing roller 5 to rotate anticlockwise, the material particles crushed by the first crushing roller 2 enter the second crushing cavity 25 from the material passing hole 62, the second crushing roller 5 further crushes the entering material particles, and the particles crushed by the second crushing roller 5 are discharged from the material passing hole 62 when the material passing hole 62 faces to the bottom along with the rotation of the first crushing roller 2.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. The crushing equipment for cement production comprises a machine shell (1), wherein a first crushing cavity (11) is arranged in the machine shell (1), a first crushing roller (2) is rotationally connected to the first crushing cavity (11), a feed inlet (12) is formed in the top of the machine shell (1), a discharge hole is formed in the bottom of the machine shell, and a door body (3) is arranged at the discharge hole, and the crushing equipment is characterized in that the first crushing roller (2) is eccentrically arranged, a second crushing cavity (25) is arranged in the first crushing roller (2), a second crushing roller (5) is rotationally connected to the second crushing cavity (25), the second crushing roller (5) is eccentrically arranged, and the first crushing roller (2) and the second crushing roller (5) are not coaxial;
the first crushing roller (2) is provided with a material passing hole (26) communicated with the first crushing cavity (11) and the second crushing cavity (25), the material passing hole (26) is fixedly connected with a first screen plate (6), the first screen plate (6) is slidably connected with a second screen plate (61), and the first screen plate (6) and the second screen plate (61) are provided with material passing holes (62);
the first crushing roller (2) is elastically connected with a rake tooth assembly, and the rake tooth assembly comprises a base (7), a first rake tooth (71) fixedly connected to the base (7) and a second rake tooth (72) slidingly connected to the base (7);
the rake teeth assembly and the material passing opening (26) are sequentially arranged along the rotation direction of the first crushing roller (2), the rake teeth assembly is propped against the cavity wall of the first crushing cavity (11), and the shell (1) is provided with a first driving assembly for driving the first crushing roller (2) and the second crushing roller (5) to rotate and an adjusting assembly for driving the second rake teeth (72) and the second screen plate (61) to slide.
2. The crushing device for cement production according to claim 1, wherein two ends of the first crushing roller (2) are respectively connected with a first eccentric shaft (21) and a first supporting shaft (22) which are coaxially arranged, the first eccentric shaft (21) is fixedly connected with the first crushing roller (2) and is rotationally connected with the machine shell (1), the first supporting shaft (22) is rotationally connected with the first crushing roller (2) and is fixedly connected with the machine shell (1), and a first gear (23) is fixedly connected on the first supporting shaft (22);
the two ends of the second crushing roller (5) are respectively and fixedly connected with a second eccentric shaft (51) and a second supporting shaft (52) which are coaxially arranged, the second crushing roller (5) is eccentrically and rotatably connected with the first crushing roller (2) through the second eccentric shaft (51) and the second supporting shaft (52), the side wall of the second crushing roller (5) is rotatably connected with a transmission gear (53), the second supporting shaft (52) is connected with a second gear (54), and the transmission gear (53) is respectively meshed with the first gear (23) and the second gear (54);
the first driving assembly drives the first eccentric shaft (21) to rotate.
3. The crushing device for cement production according to claim 2, wherein the adjusting assembly comprises an electric push rod and a deflector rod (8), the electric push rod is fixedly connected to the casing (1), and the deflector rod (8) is fixedly connected with the driving end of the electric push rod;
the second gear (54) is in sliding connection with the second support shaft (52) along the axial direction of the second support shaft (52), the second rake teeth (72) are fixedly connected with the second sieve plate (61), one end of the shifting rod (8) is fixedly connected with the second rake teeth (72), the other end of the shifting rod is provided with a U-shaped fork plate (81), and two side plates of the U-shaped fork plate (81) are respectively positioned at two sides of the second gear (54) and are attached to the second gear (54);
the electric push rod drives the deflector rod (8) to drive the second gear (54) to be meshed with the transmission gear (53) and simultaneously drive the second rake teeth (72) to be staggered with the first rake teeth (71), and the second sieve plate (61) is correspondingly communicated with the material passing holes (62) on the first sieve plate (6).
4. A crushing device for cement production according to claim 3, wherein a third gear (24) is fixedly connected to the first supporting shaft (22), the third gear (24) is located at one side of the first gear (23) away from the first crushing roller (2), the electric push rod drives the deflector rod (8) to drive the second gear (54) to be meshed with the third gear (24) and simultaneously drive the second rake teeth (72) to be overlapped with the first rake teeth (71), and the second sieve plate (61) seals the material passing holes (62) on the first sieve plate (6);
the first support shaft (22) and the first eccentric shaft (21) are respectively connected with support legs (14) which are vertically distributed, and the bottoms of the support legs (14) are elastically connected with the machine shell (1).
5. The crushing apparatus for cement production according to claim 4, wherein the first crushing chamber (11) is provided with a first crushing portion (111) and a second crushing portion (112) on both sides of the feed port (12) along a chamber wall disposed along an outer peripheral surface of the first crushing roller (2), respectively, and a vertical distance between any point on the outer peripheral surface of the first crushing roller (2) and the first crushing portion (111) and the second crushing portion (112) is smaller than a vertical distance between the point and other portions of the chamber wall of the first crushing chamber (11) disposed along the outer peripheral surface of the first crushing roller (2).
6. The crushing equipment for cement production according to claim 5, wherein a material passing cavity (27) is formed in the first crushing roller (2), the material passing cavity (27) is located at the periphery of the second crushing cavity (25), a first blanking port (271) and a second blanking port (272) are formed in the first crushing roller (2), the first blanking port (271) is located at the rear side of the rake tooth assembly along the rotation direction of the first crushing roller (2), the material passing cavity (27) is respectively communicated with the first blanking port (271) and the second blanking port (272), the first blanking port (271) is elastically connected with a baffle plate (281), and the baffle plate (281) is abutted to the cavity wall of the first crushing cavity (11).
7. The crushing device for cement production according to claim 6, wherein the first driving assembly comprises a driving motor (4), a first driving wheel (41), a second driving wheel (42) and a driving belt (43), the first driving wheel (41) is fixedly connected with the driving end of the driving motor (4), the second driving wheel (42) is fixedly connected with the first eccentric shaft (21), and the first driving wheel (41) is in driving connection with the second driving wheel (42) through the driving belt (43).
8. The crushing device for cement production according to claim 7, wherein the door body (3) is rotatably connected with the casing (1), and a second driving assembly for driving the door body (3) to open and close is arranged on the casing (1).
9. The crushing equipment for cement production according to claim 8, wherein the second driving component comprises a torsion spring and a limiting block (16), the torsion spring is arranged between a rotating shaft of the door body (3) and the casing (1), the casing (1) is provided with a sliding groove (15), the limiting block (16) is slidably connected in the sliding groove (15) and is elastically connected with the sliding groove (15), the sliding groove (15) is communicated with the first crushing cavity (11), a part of the limiting block (16) is located in the first crushing cavity (11) through the communicating part, a wedge surface is arranged at one end of the limiting block (16) facing the door body (3), a limiting groove (31) is arranged at one end of the door body (3) facing the limiting block (16), when the limiting block (16) moves towards the sliding groove (15), a part of the limiting block (16) provided with the wedge surface is separated from the limiting groove (31), and the crushing material is extruded into the door body (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311678516.7A CN117380344B (en) | 2023-12-08 | 2023-12-08 | Crushing equipment for cement production |
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| CN202311678516.7A CN117380344B (en) | 2023-12-08 | 2023-12-08 | Crushing equipment for cement production |
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| CN117380344B CN117380344B (en) | 2024-02-06 |
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| GB117281A (en) * | 1917-05-26 | 1918-07-18 | Donald John Gunn Miller | Improvements in Grinding or Crushing Machines. |
| GB220230A (en) * | 1924-01-21 | 1924-08-14 | George Edward Charles Rousseau | Improvements in or relating to ore pulverizers |
| DE19710302A1 (en) * | 1997-02-28 | 1998-09-03 | Bech Ulrich Dipl Ing | Sludge shredder |
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| CN117380344B (en) | 2024-02-06 |
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