CN111822093B - Occlusion roller with adaptive occlusion distance - Google Patents
Occlusion roller with adaptive occlusion distance Download PDFInfo
- Publication number
- CN111822093B CN111822093B CN202010805939.0A CN202010805939A CN111822093B CN 111822093 B CN111822093 B CN 111822093B CN 202010805939 A CN202010805939 A CN 202010805939A CN 111822093 B CN111822093 B CN 111822093B
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- oil
- self
- adaptive
- bite
- roll
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- 230000003044 adaptive effect Effects 0.000 title claims description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 96
- 239000010720 hydraulic oil Substances 0.000 claims description 20
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
- B02C4/34—Adjusting, applying pressure to, or controlling the distance between, milling members in mills wherein a roller co-operates with a stationary member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/40—Detachers, e.g. scrapers
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a meshing roller with self-adaptive meshing spacing, which comprises a meshing roller support frame, wherein a meshing roller body which is rotatably arranged is connected to the meshing roller support frame, a driving element is arranged on the meshing roller support frame, the driving element is in transmission connection with the meshing roller body, a conveying mechanism is arranged below the meshing roller support frame, the meshing spacing is formed between the conveying mechanism and the meshing roller body, and the meshing roller support frame is provided with a self-adaptive telescopic mechanism which can adjust the size of the meshing spacing according to the size of a material.
Description
Technical Field
The present invention relates to a grinding and pulverizing apparatus.
Background
Grinding and crushing equipment crushes materials through a nip roller, and crushing is usually performed in the process of feeding the materials, so that crushed materials are provided for people.
However, the conventional engagement roller cannot adjust the distance between the crushing roller and the conveying mechanism according to the size of the material, and if the distance is not well controlled, the crushing roller cannot contact the material for crushing or cannot crush when the distance between the crushing roller and the conveying mechanism is greater than the height of the material, and it is necessary to provide a control structure capable of automatically adjusting the distance between the crushing roller and the conveying mechanism.
Accordingly, the conventional grinding apparatus is further improved.
Disclosure of Invention
The invention aims to provide a control structure capable of automatically adjusting the distance between a crushing roller and a conveying mechanism.
In order to achieve the above purpose, the present invention adopts the following scheme:
the utility model provides an interlock interval self-adaptation's interlock roller, includes the interlock roller support frame, be connected with the interlock roller body that rotates the setting on the interlock roller support frame, be provided with driving element on the interlock roller support frame, have driving element with the interlock roller body transmission is connected, interlock roller support frame below is provided with conveying mechanism, form the interlock interval between conveying mechanism and the interlock roller body, be provided with the self-adaptation telescopic machanism that can adjust the interlock interval size according to the material size on the interlock roller support frame.
Further, the self-adaptive telescopic mechanism comprises an oil cylinder assembly arranged on the oil cylinder hinged support and a hydraulic system connected with the oil cylinder assembly to control the oil cylinder assembly to work.
Further, the hydraulic system comprises a hydraulic oil tank arranged outside the oil cylinder assembly, an oil inlet pipeline is arranged on the hydraulic oil tank, a reversing valve is arranged on the oil inlet pipeline, a first conveying oil pipe is arranged between a rodless cavity of the oil cylinder and the reversing valve, a second conveying oil pipe is arranged between a rod cavity of the oil cylinder and the reversing valve, a one-way throttle valve, a hydraulic control one-way valve and a first oil pipe and a second oil pipe which are connected between the first conveying oil pipe and the second conveying oil pipe are sequentially arranged in the direction of the hydraulic oil tank, a shuttle valve is arranged on the first oil pipe, an adjustable pilot overflow valve is arranged on the second oil pipe, an outlet end of the adjustable pilot overflow valve is connected with an oil return pipe, the oil return pipe is connected with the hydraulic oil tank, a straight-through overflow valve is arranged on the oil return pipe, a third oil pipe is connected between the oil return pipe and the first conveying oil pipe, and the one-way valve is arranged on the third oil pipe.
Further, a lifting connecting seat is arranged on the occluding roller supporting frame and comprises a plurality of guide rail sliding blocks fixedly connected with the occluding roller body, guide rail sliding bodies used for being fixedly connected with external equipment are movably arranged in the guide rail sliding blocks, and the guide rail sliding bodies are vertically arranged.
Further, the driving element comprises a hydraulic motor, the output end of the hydraulic motor is connected with the bite roller body for transmission, and a manual control valve for controlling the switch of the hydraulic motor is connected to the hydraulic motor.
Further, the occluding roller support frame comprises side support plates at two sides, a connecting cross rod arranged between the side support plates at two sides in a connecting mode, and a rotating shaft hole is formed in the side support plates.
Further, the occluding roller body comprises a middle rotating shaft transversely inserted in the rotating shaft hole, and an occluding roller is arranged on the middle rotating shaft.
Further, the surfaces of the engagement rollers are all provided with a plurality of rows of engagement teeth on the circumference, and the engagement rollers are arranged in a column shape.
Further, rolling bearings are installed in the rotating shaft holes, the rolling bearings are arranged in the middle rotating shaft in an inserted mode, bearing sealing rings used for protecting the bearings are arranged on the rolling bearings, scraping plates connected to the connecting cross rods are arranged on the outer sides of the engagement rollers, a plurality of grooves are evenly distributed in the lower edges of the scraping plates in the transverse mode, and oil cylinder hinge supports used for connecting oil cylinder assemblies are arranged on the engagement roller support frames.
Further, a travel switch for controlling the starting of the self-adaptive telescopic mechanism is arranged on the conveying mechanism, and the travel switch is in signal connection with the self-adaptive telescopic mechanism. Further, a travel switch for controlling the starting of the self-adaptive telescopic mechanism is arranged on the conveying mechanism, and the travel switch is in signal connection with the self-adaptive telescopic mechanism.
In summary, compared with the prior art, the invention has the following beneficial effects:
The invention solves the defects existing in the existing crushing equipment, can automatically adjust the distance between the crushing roller and the conveying mechanism according to the size of the material, ensures that the distance between the crushing roller and the conveying mechanism is at a proper height, ensures that the biting roller can apply pressure to the material and crush the material, and provides a control structure capable of automatically adjusting the distance between the crushing roller and the conveying mechanism, and the control structure is simple in structure and convenient to use.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of the structure of a nip roll stand according to the present invention;
FIG. 4 is a schematic view of a lifting connection base according to the present invention;
FIG. 5 is a schematic diagram of the structure of the present invention;
fig. 6 is a schematic diagram of a nip roll hydraulic control system of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution:
The utility model provides an interlock interval self-adaptation's interlock roller, includes interlock roller support frame 1, be connected with the interlock roller body 2 that rotates the setting on the interlock roller support frame 1, be provided with driving element 3 on the interlock roller support frame 1, there is driving element 3 with interlock roller body 2 transmission is connected, interlock roller support frame 1 below is provided with conveying mechanism, form the interlock interval between conveying mechanism and the interlock roller body 2, be provided with the self-adaptation telescopic machanism 5 that can adjust the interlock interval size according to the material size on the interlock roller support frame 1
The occluding roller support frame 1 mainly plays a supporting role and is used for installing an occluding roller body 2, supporting a lifting connecting seat 4 and a driving element 3 and connecting a self-adaptive telescopic mechanism 5;
the material can be bitten and crushed in the rotation process of the bitten roller body 2;
The self-adaptive telescopic mechanism 5 can control the height of the occluding roller support frame 1 according to the height of the material, and the self-adaptive telescopic mechanism 5 can control the telescopic height in a specified pressure range by pushing the material height to the upward force of the self-adaptive telescopic mechanism 5;
The lifting connecting seat 4 mainly plays a role of guiding the occluding roller supporting frame 1 up and down;
the above structure principle:
when the self-adaptive telescopic mechanism is used, under the action of external force, the self-adaptive telescopic mechanism 5 drives the movable occluding roller body 2 to the lowest position, namely, the lowest value of the surface gap between the occluding roller body 2 and the conveying mechanism below the occluding roller body is formed, the material is fed below the occluding roller body 2, according to the height of the material, the occluding roller body 2 is subjected to upward acting force of material pressing, the self-adaptive telescopic mechanism 5 adjusts the height of the occluding roller body 2 to the height within the movable range of the self-adaptive telescopic mechanism 5, the mutual matching of the occluding opening and the material is ensured, when the material continues to move, the travel switch senses the material, the travel switch is electrically connected with the self-adaptive telescopic mechanism 5, the travel switch triggers, and the self-adaptive telescopic mechanism 5 is started to press down for occluding and crushing.
The lifting connecting seat 4 comprises a plurality of guide rail sliding blocks 401 fixedly connected with a snap roller body 2, wherein guide rail sliding bodies 402 used for being fixedly connected with external equipment are movably arranged in the guide rail sliding blocks 401, and the guide rail sliding bodies 402 are vertically arranged; the rail slider 401 can reciprocate linearly on the rail slider 402.
The self-adaptive telescopic mechanisms 5 are vertically arranged in a plurality of mode and uniformly distributed.
The self-adaptive telescopic mechanism 5 comprises an oil cylinder hinged support 501 arranged on a meshing roller support frame 1, wherein a hydraulic oil cylinder assembly 502 which can be fixedly connected with external equipment is connected to the oil cylinder hinged support 501;
The control principle of the hydraulic cylinder assembly 502 and the control elements outside the hydraulic cylinder assembly 502 include:
As shown in connection with fig. 6: a reversing valve 901, a one-way throttle valve 902, a pilot-operated one-way valve 903, a constant pressure reducing valve 904, a shuttle valve 905, an adjustable pilot relief valve 906, a straight-through relief valve 907, a one-way valve 908, a hydraulic cylinder assembly 502, and a manual control valve 302; a nip roller motor safety valve block 303, a hydraulic motor 301;
the driving element 3 of the invention comprises a hydraulic motor 301, wherein the output end of the hydraulic motor 301 is connected with the bite roller body 2 for transmission, and a manual control valve 302 for controlling the on-off of the hydraulic motor 301 is connected to the hydraulic motor 301;
all the above elements are integrated into one hydraulic valve block.
The manual control valve 302 is pushed to the left, and high-pressure oil passes through the bite roller motor safety valve group 303 to the hydraulic motor 301 to drive the hydraulic motor 301 to operate.
The self-adaptive telescopic mechanism 5 comprises an oil cylinder assembly 502 which is arranged on an oil cylinder hinged support 501 and can be fixedly connected with external equipment, and a hydraulic system for controlling the oil cylinder assembly 502 to work.
The hydraulic system comprises a hydraulic oil tank arranged outside an oil cylinder assembly 502, an oil inlet pipeline is arranged on the hydraulic oil tank, a reversing valve 901 is arranged on the oil inlet pipeline, a first conveying oil pipe 910 is arranged between a rodless cavity of the oil cylinder and the reversing valve 901, a second conveying oil pipe 911 is arranged between a rod cavity of the oil cylinder and the reversing valve 901, a one-way throttle valve 902, a hydraulic control one-way valve 903, a first oil pipe 912 and a second oil pipe 913 which are connected between the first conveying oil pipe 910 and the second conveying oil pipe 911 are sequentially arranged in the direction of the hydraulic oil tank, a shuttle valve 905 is arranged on the first oil pipe 912, an adjustable pilot overflow valve 906 is arranged on the second oil pipe 913, an outlet end of the adjustable pilot overflow valve 906 is connected with an oil return pipe 914, the oil return pipe 914 is connected with the hydraulic oil tank, a through third oil pipe 915 is connected between the oil return pipe 914 and the first conveying oil pipe 910, and the third one-way overflow valve 908 is arranged on the third oil pipe 915.
Extending the oil cylinder of the engagement roller: the reversing valve 901 is electrified to control the walking direction of hydraulic oil, the hydraulic oil enters the one-way throttle valve 902, and the one-way throttle valve 902 plays a role in stabilizing the oil flow of the hydraulic oil; hydraulic oil passes through the one-way throttle valve 902 and enters the hydraulic control one-way valve 903, the hydraulic oil opens the oil return path of the hydraulic control one-way valve 903, and the hydraulic control one-way valve 903 mainly has the effect of reversely stopping the system; hydraulic oil passes through the hydraulic control one-way valve 903 and reaches the rodless cavity of the hydraulic oil cylinder assembly 502, the oil cylinder stretches out, and the engagement roller stretches out downwards;
At this time, the pilot relief valve 906 and the through relief valve 907 function as two-stage relief valve protection.
The control logic for retracting the hydraulic ram assembly 502 is reversed from the procedure above.
The hydraulic ram assembly 502 is set at a verified height. The engagement roller is arranged in an automatic engagement shape.
When the system is fed, when the size A of the material to be crushed is larger than or equal to the gap B between the engagement roller and the conveyor belt, the engagement roller body 2 receives upward supporting force F, the force and the gravity G form resultant force, the pressure P and pressure oil are formed in a rodless cavity of the oil cylinder, the pressure oil enters a rod cavity of the oil cylinder from the adjustable pilot overflow valve 906, and the oil cylinder is retracted. Since the oil has a rod chamber with a greater amount of oil than the oil without a rod chamber, excess oil is returned to the tank through the pass through relief valve 907 via the adjustable pilot relief valve 906 and the shuttle valve 905.
When the size A of the material to be crushed is smaller than or equal to the gap B between the engagement roller and the conveying belt, the engagement roller body 2 is driven by gravity, the oil cylinder stretches out, oil with a rod cavity passes through the shuttle valve 905, the through overflow valve 907 returns to the oil tank, and the rodless cavity absorbs oil from the oil return pipe through the one-way valve 908, so that the oil balance effect at two ends of the oil cylinder is realized.
A speed reducer is connected to the hydraulic motor 301.
The invention discloses a nip roller support frame 1, which comprises side support plates 101 at two sides, a connecting cross bar 102 connected between the side support plates 101 at two sides, and a rotating shaft hole 103 arranged on the side support plates 101;
The number of the side support plates 101 is two, and the side support plates are respectively arranged left and right, are connected through the connecting cross rod 102, and are rotatably arranged on the occluding roller body 2 through the rotating shaft holes 103.
The occluding roller body 2 comprises a transit shaft 201 transversely inserted into the shaft hole 103, and an occluding roller 202 is arranged on the transit shaft 201.
The surface circumference of the occluding roller 202 is provided with a plurality of rows of occluding teeth 100, and the occluding roller 202 is in cylindrical arrangement; during rotation, the biting teeth 100 bite and crush wood and other materials.
The rolling bearing 200 is installed in the rotating shaft hole 103, the rolling bearing 200 is inserted into the rotating shaft 201, and the rolling bearing 200 is provided with a bearing sealing ring 300 for protecting the bearing;
the outside of the occluding roller 202 is provided with a scraping plate 400 connected to the connecting cross rod 102, and a plurality of grooves 500 are transversely and uniformly distributed on the lower edge of the scraping plate 400;
The scraping plate 400 is in clearance fit with the meshing teeth 100 of the meshing roller 202, and when the material is accumulated to exceed a certain size, the scraping plate 400 can be automatically scraped off, so that the function of cleaning the meshing teeth is achieved;
While there has been shown and described what is at present considered to be the fundamental principles and the main features of the invention and the advantages thereof, it will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but is described in the foregoing description merely illustrates the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as hereinafter claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an interlock interval self-adaptation's interlock roller, includes interlock roller support frame (1), be connected with on interlock roller support frame (1) and rotate interlock roller body (2) that set up, be provided with driving element (3) on interlock roller support frame (1), driving element (3) with interlock roller body (2) transmission connection, be provided with conveying mechanism below interlock roller support frame (1), form the interlock interval between conveying mechanism and interlock roller body (2), be provided with on interlock roller support frame (1) and adjust self-adaptation telescopic machanism (5) of interlock interval size according to the material size; the self-adaptive telescopic mechanism (5) comprises an oil cylinder assembly (502) arranged on an oil cylinder hinged support (501) and a hydraulic system connected with the oil cylinder assembly (502) to control the oil cylinder assembly (502) to work; the hydraulic system comprises a hydraulic oil tank, an oil inlet pipeline is arranged on the hydraulic oil tank, a reversing valve (901) is arranged on the oil inlet pipeline, a first conveying oil pipe (910) is arranged between a rodless cavity of an oil cylinder assembly (502) and the reversing valve (901), a second conveying oil pipe (911) is arranged between a rod cavity of the oil cylinder assembly (502) and the reversing valve (901), a one-way throttle valve (902), a hydraulic control one-way valve (903) and a first oil pipe (912) and a second oil pipe (913) which are connected between the first conveying oil pipe (910) and the second conveying oil pipe (911) are sequentially arranged in the direction of the hydraulic oil tank, a shuttle valve (905) is arranged on the first oil pipe (912), an adjustable pilot overflow valve (906) is arranged on the second oil pipe (913), an outlet end of the adjustable pilot overflow valve (906) is connected with an oil return pipe (914), the oil return pipe (914) is connected with the hydraulic oil tank, a through overflow valve (914) is arranged on the oil return pipe (914), and a one-way oil pipe (915) is connected with the third oil pipe (915), and the one-way valve (908) is arranged between the first conveying oil pipe (915) and the third oil pipe (915). The conveying mechanism is provided with a travel switch for controlling the starting of the self-adaptive telescopic mechanism (5), and the travel switch is in signal connection with the self-adaptive telescopic mechanism (5).
2. The occlusion roller with the self-adaptive occlusion distance according to claim 1, wherein an elevating connecting seat (4) is arranged on the occlusion roller supporting frame (1), the elevating connecting seat (4) comprises a plurality of guide rail sliding blocks (401) fixedly connected with the occlusion roller body (2), guide rail sliding bodies (402) fixedly connected with external equipment are movably arranged in the guide rail sliding blocks (401), and the guide rail sliding bodies (402) are vertically arranged.
3. A nip roll with adaptive nip pitch according to claim 1, characterized in that the drive element (3) comprises a hydraulic motor (301), the output of the hydraulic motor (301) is in transmission connection with the nip roll body (2), and a manual control valve (302) for controlling the switching of the hydraulic motor (301) is connected to the hydraulic motor (301).
4. The bite roll with the self-adaptive bite interval according to claim 1, wherein the bite roll supporting frame (1) comprises side supporting plates (101) on two sides, a connecting cross bar (102) connected between the side supporting plates (101) on two sides, and a rotating shaft hole (103) is arranged on the side supporting plates (101).
5. The bite roll with the self-adaptive bite interval according to claim 2, wherein the bite roll body (2) comprises a middle rotating shaft (201) transversely inserted into the rotating shaft hole (103), and the middle rotating shaft (201) is provided with a bite roll (202).
6. The bite roll with adaptive bite spacing according to claim 5, wherein the bite roll (202) has rows of bite teeth (100) on the circumference of the surface, and the bite roll (202) is cylindrically shaped.
7. The occlusion roll with the self-adaptive occlusion distance according to claim 5, wherein a rolling bearing (200) is installed in the rotating shaft hole (103), a middle rotating shaft (201) is inserted in the rolling bearing (200), a bearing sealing ring (300) for protecting the bearing is arranged on the rolling bearing (200), a scraping plate (400) connected to a connecting cross rod (102) is arranged on the outer side of the occlusion roll (202), a plurality of grooves (500) are uniformly distributed on the lower edge of the scraping plate (400), and an oil cylinder hinge bracket (501) for connecting an oil cylinder assembly (502) is arranged on the occlusion roll support frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010805939.0A CN111822093B (en) | 2020-08-12 | 2020-08-12 | Occlusion roller with adaptive occlusion distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010805939.0A CN111822093B (en) | 2020-08-12 | 2020-08-12 | Occlusion roller with adaptive occlusion distance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111822093A CN111822093A (en) | 2020-10-27 |
| CN111822093B true CN111822093B (en) | 2024-07-02 |
Family
ID=72917969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010805939.0A Active CN111822093B (en) | 2020-08-12 | 2020-08-12 | Occlusion roller with adaptive occlusion distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111822093B (en) |
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| EP0255504A2 (en) * | 1986-07-29 | 1988-02-03 | Maschinenfabrik Liezen Gesellschaft m.b.H. | Crushing device for lump material, especially rock or coal |
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| DE3743141A1 (en) * | 1987-12-18 | 1989-06-29 | Krupp Polysius Ag | GOOD BED ROLL MILL |
| JP2000288413A (en) * | 1999-03-31 | 2000-10-17 | Kurimoto Ltd | Slag crusher |
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|---|---|---|---|---|
| EP0255504A2 (en) * | 1986-07-29 | 1988-02-03 | Maschinenfabrik Liezen Gesellschaft m.b.H. | Crushing device for lump material, especially rock or coal |
| CN111250215A (en) * | 2018-11-30 | 2020-06-09 | 南京梅山冶金发展有限公司 | Roll gap adjusting method for roll gap of roll crusher |
| CN212370294U (en) * | 2020-08-12 | 2021-01-19 | 中山德马克环保科技有限公司 | Interlock roller with self-adaptive interlock interval |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111822093A (en) | 2020-10-27 |
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