CN110215970B - Raymond mill with grinding roller pressurizing and limiting device - Google Patents
Raymond mill with grinding roller pressurizing and limiting device Download PDFInfo
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- CN110215970B CN110215970B CN201910517163.XA CN201910517163A CN110215970B CN 110215970 B CN110215970 B CN 110215970B CN 201910517163 A CN201910517163 A CN 201910517163A CN 110215970 B CN110215970 B CN 110215970B
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- grinding
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- grinding roller
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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
- B02C15/08—Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by a centrally arranged member
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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
- 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
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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
- 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
- B02C23/04—Safety devices
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- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to a Raymond mill with a grinding roller pressurizing and limiting device, which comprises: the grinding roller main shaft is vertically arranged; the pressing support is vertically and fixedly connected with the grinding roller main shaft and is driven by the grinding roller main shaft to rotate by taking the grinding roller main shaft as an axis; the pressing shaft sleeves are uniformly arranged at intervals along the circumferential direction of the grinding roller main shaft and are vertically arranged, the sides of the pressing shaft sleeves, far away from the grinding roller main shaft, are connected with the pressing support, and the upper ends of the pressing shaft sleeves, close to the grinding roller main shaft, are respectively provided with a pressing lug extending upwards; the plurality of limiting supports and the plurality of pressing lug pieces are correspondingly arranged on the pressing supports and are positioned on the sides of the plurality of pressing shaft sleeves, which are far away from the grinding roller spindle; the threaded pull rods are correspondingly arranged between the limiting supports and the pressing lug pieces. The invention enables a non-contact gap to be formed between the grinding rollers and the grinding ring through the springs, prevents the grinding rollers and the grinding ring from being in contact wear, and prolongs the service life of the grinding rollers and the grinding ring.
Description
Technical Field
The invention relates to a flour mill, in particular to a Raymond mill with a grinding roller pressurization limiting device.
Background
The Raymond mill is also called Raymond mill, and is a novel high-efficiency high-fineness powder making device adopting closed cycle and capable of replacing a ball mill. The Raymond mill is suitable for the industries of small and medium-sized mines, chemical industry, building materials, metallurgy, refractory materials, glass, cement and the like.
When the Raymond mill in the prior art works, materials to be crushed are added into the machine from a feed hopper on the side surface of a shell, and revolve around a vertical axis by virtue of a grinding roller device hung on a plum blossom frame of a main machine, and simultaneously rotate, and due to the action of centrifugal force during rotation, the grinding roller swings outwards and is tightly pressed on a grinding ring, so that a scraper knife shovels the materials and sends the materials to a position between the grinding roller and the grinding ring, and the purpose of crushing the materials is achieved due to rolling and rolling of the grinding roller.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
when the grinding roller outwards swings and is tightly pressed on the grinding ring, the grinding roller can be contacted with the grinding ring, so that the grinding roller and the grinding ring are worn prematurely, the whole working period of the Raymond mill is relatively short, frequent maintenance is needed, and the high-efficiency grinding of fine powder is not facilitated.
Disclosure of Invention
In order to solve the technical problems in the prior art, the embodiment of the invention provides a Raymond mill with a grinding roller pressurization limiting device. The specific technical scheme is as follows:
in a first aspect, there is provided a Raymond mill having a grinding roll pressurization limiting device, wherein the Raymond mill having the grinding roll pressurization limiting device comprises:
the grinding roller main shaft is vertically arranged;
the pressing support is vertically and fixedly connected with the grinding roller main shaft and is driven by the grinding roller main shaft to rotate by taking the grinding roller main shaft as an axis;
the pressing shaft sleeves are uniformly arranged at intervals along the circumferential direction of the grinding roller main shaft and are vertically arranged, the sides of the pressing shaft sleeves, far away from the grinding roller main shaft, are connected with the pressing support, and the upper ends of the pressing shaft sleeves, close to the grinding roller main shaft, are respectively provided with a pressing lug extending upwards;
the plurality of limiting supports and the plurality of pressing lug pieces are correspondingly arranged on the pressing supports and are positioned on the sides of the plurality of pressing shaft sleeves, which are far away from the grinding roller spindle;
the plurality of threaded pull rods are correspondingly arranged between the plurality of limiting supports and the plurality of pressing lug pieces and are correspondingly connected with the plurality of limiting supports and the plurality of pressing lug pieces, the sides of the plurality of pressing shaft sleeves, which are close to the grinding roller main shaft, are connected with the pressing supports through the plurality of pressing lug pieces, the plurality of threaded pull rods and the plurality of limiting supports, and the plurality of pressing shaft sleeves are driven by the pressing supports to rotate by taking the grinding roller main shaft as an axis;
the springs are arranged on the threaded pull rods and positioned between the limiting support and the pressing lug plates, the springs are in a reset state, and when the pressing shaft sleeves rotate by taking the grinding roller main shaft as an axis, the springs are in a stretching state;
the top of the grinding roll shaft is correspondingly connected with the pressing shaft sleeves, the grinding roll shafts are connected with the pressing support through the pressing shaft sleeves, and the grinding roll shafts are driven by the pressing shaft sleeves to rotate by taking the grinding roll main shaft as an axis;
the grinding rollers are correspondingly and fixedly connected with the bottoms of the grinding roller shafts and are driven by the grinding roller shafts to rotate by taking the grinding roller main shafts as axes; and
the grinding bin is provided with a plurality of grinding rings corresponding to the grinding rollers, the grinding rollers are correspondingly arranged in the grinding rings, first gaps are formed between the grinding rings corresponding to the grinding rollers, when the grinding rollers rotate by taking the grinding roller main shafts as axes, the springs are in a stretching state and generate a pulling force for the grinding rollers, second gaps are formed between the grinding rollers and the grinding rings, and the second gaps are smaller than the first gaps.
In a first possible implementation manner of the first aspect, the grinding roll spindle further comprises a driving mechanism connected with the grinding roll spindle, and the driving mechanism is used for driving the grinding roll spindle to rotate.
In a second possible implementation manner of the first aspect, a shaft hole is further formed in the middle of the pressing support, and the grinding roller main shaft is vertically and fixedly connected with the pressing support through the shaft hole.
In a third possible implementation manner of the first aspect, the grinding roll further comprises a plurality of U-shaped connecting supports which are arranged at the end portions of the pressing support and are uniformly arranged at intervals along the circumferential direction of the grinding roll main shaft, and the pressing support is connected with the plurality of pressing shaft sleeves through the plurality of U-shaped connecting supports.
In combination with the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, two opposite sides of each U-shaped connecting support are further provided with a fastening clamping groove, the side, far away from the main shaft of the grinding roller, of each pressing shaft sleeve is further provided with a connection lug, the connection lugs and the fixed clamping grooves are correspondingly matched and connected through a plurality of connection shafts, and the pressing support is correspondingly connected with the pressing shaft sleeves through the connection lugs and the fixed clamping grooves.
With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the number of the plurality of U-shaped connecting supports is four, and the four U-shaped connecting supports are uniformly arranged at the end portion of the pressing support at intervals along the circumferential direction of the main shaft of the grinding roller.
In a sixth possible implementation manner of the first aspect, a plurality of compressing caps are further correspondingly disposed at the upper ends of the plurality of compressing shaft sleeves, and the plurality of compressing caps are used for sealing the upper ends of the plurality of compressing shaft sleeves.
In a seventh possible implementation manner of the first aspect, the lower ends of the multiple pressing shaft sleeves are further sequentially provided with an inverted-buckle-shaped connecting portion and a tightening shaft sleeve, and the tightening shaft sleeve is pressed on the grinding bin.
In an eighth possible implementation manner of the first aspect, the plurality of limiting supports are fixed on the pressing support through at least two connecting bolts and a first nut assembly.
In a ninth possible implementation manner of the first aspect, the raymond mill with the grinding roller pressurizing and limiting device further includes a plurality of limiting rings and a plurality of second nut assemblies, one end of each of the plurality of threaded pull rods penetrates through the corresponding limiting supports to be correspondingly connected with the plurality of limiting rings, and is clamped on the plurality of limiting supports through the plurality of limiting rings, and the other end of each of the plurality of threaded pull rods penetrates through the corresponding compressing lug to be connected with the plurality of second nut assemblies.
Compared with the prior art, the invention has the advantages that:
when the Raymond mill with the grinding roller pressurizing and limiting device is used for grinding materials, the springs can exert pressurizing and buffering effects on the grinding rollers, and the vibration of the Raymond mill with the grinding roller pressurizing and limiting device is reduced. Simultaneously, a plurality of springs still make and have the second clearance between a plurality of grinding rollers and the grinding ring, also have a noncontacting clearance between a plurality of grinding rollers and the grinding ring, prevent a plurality of grinding rollers and grinding ring contact wear, improve a plurality of grinding rollers and grinding ring's life, finally improved the life of the lei meng mill that has grinding roller pressurization stop device.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a raymond mill with a grinding roller pressurization limiting device according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a pressing support according to an embodiment of the present invention.
Fig. 3 is a schematic view of the connection of the limit seat and the pressing seat according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In an embodiment of the present invention, please refer to fig. 1, which shows a schematic structural diagram of a raymond mill 1 with a grinding roller pressurization limiting device in an embodiment of the present invention. Raymond mill 1 with grinding roller pressurization stop device includes grinding roller main shaft 2, compresses tightly support 3, a plurality of axle sleeve 4 that compress tightly, a plurality of spacing support 5, a plurality of threaded pull rod 6, a plurality of spring 7, a plurality of grinding roller axle 8, a plurality of grinding roller 9 and mill storehouse 10, wherein:
referring to fig. 1 again, the grinding roller spindle 2 is vertically disposed, and the grinding roller spindle 2 is mainly used to drive the pressing support 3, the pressing shaft sleeves 4, the grinding roller shafts 8, and the grinding rollers 9 to rotate.
In a preferred embodiment, referring to fig. 1 again, the raymond mill 1 with the grinding roller pressurization limiting device further comprises a driving mechanism 16, the driving mechanism 16 is connected with the grinding roller spindle 2, the driving mechanism 16 is used for driving the grinding roller spindle 2 to rotate, the driving mechanism 16 can be selected from a structure consisting of a driving motor 161 and a gear transmission structure 162, the driving motor 161 provides driving force, and the gear transmission structure 162 transmits the driving force, but not limited thereto.
The pressing support 3 is vertically and fixedly connected with the main shaft 2 of the grinding roller, and in order to further describe the raymond mill 1 with the grinding roller pressurizing limiting device shown in fig. 1, please refer to fig. 2, which shows a schematic structural diagram of the pressing support 3 according to an embodiment of the present invention. The pressing support 3 disclosed in this embodiment is further provided with a shaft hole 31 in the middle, and the grinding roller spindle 2 is vertically and fixedly connected with the pressing support 3 through the shaft hole 31, but not limited thereto. The pressing support 3 is driven by the grinding roller main shaft 2 to rotate by taking the grinding roller main shaft 2 as an axis.
In a preferred embodiment, referring to fig. 2 again, the raymond mill 1 with the grinding roller pressurization limiting device further comprises a plurality of U-shaped connecting supports 11, the plurality of U-shaped connecting supports 11 are arranged at the end of the pressing support 3 and are uniformly arranged at intervals along the circumferential direction of the grinding roller main shaft 2, and the plurality of U-shaped connecting supports 11 and the pressing support 3 are preferably an integral structure, but not limited thereto. The pressing support 3 is connected with the pressing sleeves 4 through a plurality of U-shaped connecting supports 11, but not limited thereto.
The plurality of pressing shaft sleeves 4 are uniformly and vertically arranged along the circumferential direction of the grinding roller main shaft 2, the sides 41 of the plurality of pressing shaft sleeves 4 far away from the grinding roller main shaft 2 are connected with the pressing support 3, please refer to fig. 3 again, the opposite sides of each U-shaped connecting support 11 disclosed in this embodiment are further provided with a fastening clamping groove 111, the sides 41 of the plurality of pressing shaft sleeves 4 far away from the grinding roller main shaft 2 are further provided with a connecting lug 44, the plurality of connecting lugs 44 are correspondingly and cooperatively connected with the plurality of fixing clamping grooves 111 through a plurality of connecting shafts 12, where correspondingly and cooperatively connecting means that one connecting lug 44 is arranged between the fastening clamping grooves 111 on the opposite sides of one U-shaped connecting support 11 and is connected to the fastening clamping grooves 111 on the opposite sides through one connecting shaft 12, and this connection mode can stably connect the plurality of pressing shaft sleeves 4 and the grinding roller shafts 8 and the grinding roller 9 connected therewith with the pressing support, the Raymond mill 1 with the grinding roller pressurizing and limiting device is ensured to have good stability during grinding, and the tension force of the spring 7 can be directly transmitted to the corresponding grinding roller 9, but the method is not limited to the above.
Referring to fig. 1 again, the upper ends of the plurality of pressing sleeves 4 close to the main shaft 2 side 42 of the grinding roller are respectively provided with an upward extending pressing lug 43, and the pressing lugs 43 and the pressing sleeves 4 are preferably of an integral structure, but not limited thereto.
Referring to fig. 1 again, a plurality of limiting supports 5 and a plurality of pressing lugs 43 are disposed on the pressing support 3 and located on the side of the plurality of pressing sleeves 4 away from the grinding roller spindle 2, and each limiting support 5 is preferably of a single-lug structure, so as to reduce the overall weight of the raymond mill 1 with the grinding roller pressing limiting device, and at the same time, ensure sufficient strength, but not limited thereto. Referring to fig. 3, a schematic diagram of the connection between the limiting support 5 and the pressing support 3 according to an embodiment of the present invention is shown. The plurality of limit supports 5 are fixed on the pressing support 3 by at least two connecting bolts 13 and a first nut assembly 14, so as to ensure that each limit support 5 and the pressing support 3 have sufficient connecting rigidity and strength, but not limited thereto. The limiting supports 5 of the present embodiment are further disclosed to be fixed on the U-shaped connecting support 11, but not limited thereto.
Referring to fig. 1 again, the plurality of threaded pull rods 6 are correspondingly disposed between the plurality of limiting supports 5 and the plurality of pressing tabs 43, and are correspondingly connected to the plurality of limiting supports 5 and the plurality of pressing tabs 43, in the embodiment, the connection manner is disclosed, in which one end of the plurality of threaded pull rods 6 passes through the plurality of limiting supports 5 corresponding thereto to be correspondingly connected to the plurality of limiting rings 17, and is tightly clamped to the plurality of limiting supports 5 through the plurality of limiting rings 17, and the other end of the plurality of threaded pull rods 6 passes through the plurality of pressing tabs 43 corresponding thereto to be connected to the plurality of second nut assemblies 18, but not limited thereto.
Referring to fig. 1 again, the pressing shaft sleeves 4 are connected to the pressing support 3 through a plurality of pressing lugs 43, a plurality of threaded pull rods 6 and a plurality of limiting supports 5 on the side close to the grinding roller spindle 2, and the pressing shaft sleeves 4 are driven by the pressing support 3 to rotate around the grinding roller spindle 2.
Referring to fig. 1 again, the plurality of springs 7 are disposed on the plurality of threaded pull rods 6 and between the limiting support 5 and the pressing lug 43, the plurality of springs 7 are in a reset state, and when the plurality of pressing shaft sleeves 4 rotate by taking the grinding roller main shaft 2 as the axis, the plurality of springs 7 are in a stretching state, the plurality of pressing shaft sleeves 4 are stretched by a plurality of springs 7 to ensure that the grinding roller shaft 8 connected with the pressing shaft sleeves keeps a certain distance in the grinding ring 101, and finally a non-contact gap (a second gap) is ensured between the grinding roller 9 fixed at the bottom of the grinding roller shaft 8 and the grinding ring 101, the non-contact gap is always larger than zero, further, the grinding roller 9 and the grinding ring 101 are guaranteed to grind materials between the grinding roller 9 and the grinding ring 101 in a non-contact mode, finally the grinding roller 9 and the grinding ring 101 are guaranteed to be worn out in a non-contact mode, the service lives of the two keys and the heavy component are prolonged, and the service life of the Raymond mill 1 with the grinding roller pressurizing limiting device is prolonged finally.
The top of a plurality of grinding roller axle 8 corresponds with a plurality of axle sleeves 4 that compress tightly and is connected, and a plurality of grinding roller axle 8 are connected with compressing tightly support 3 through a plurality of axle sleeves 4 that compress tightly, and a plurality of grinding roller axle 8 drive and use grinding roller main shaft 2 to rotate as the axle center through a plurality of axle sleeves 4 that compress tightly.
In a preferred embodiment, referring to fig. 1 again, a plurality of pressing covers 15 are correspondingly disposed at the upper ends of the plurality of pressing shaft sleeves 4, and the plurality of pressing covers 15 may be disposed on the upper ends of the plurality of pressing shaft sleeves 4 by bolts, but not limited thereto. The plurality of packing caps 15 are used to seal the upper ends of the plurality of packing bosses 4, but not limited thereto.
A plurality of grinding rollers 9 correspond fixed connection with the bottom of a plurality of grinding roller axle 8, and a plurality of grinding rollers 9 drive and use grinding roller main shaft 2 as the axle center rotation through a plurality of grinding roller axle 8. Referring to fig. 1 again, the lower ends of the pressing shaft sleeves 4 of the present embodiment are further sequentially provided with an inverted trumpet-shaped connecting portion 45 and a tightening shaft sleeve 46 to ensure the balance of the upper and lower positions of the whole pressing shaft sleeve 4 and the grinding roller shaft 8, and at the same time, to enhance the rotational stability of the grinding roller shaft 8, and the tightening shaft sleeve 46 is tightly pressed on the grinding bin 10 to seal the grinding roller 9.
Referring again to fig. 1, the grinding chamber 10 has a plurality of grinding rings 101 corresponding to the plurality of grinding rollers 9, and the plurality of grinding rollers 9 are correspondingly disposed in the grinding rings 101 with a first gap between the grinding rings 101.
When the grinding rollers 9 rotate by taking the grinding roller main shaft 2 as an axis, the springs 7 are in a stretching state and generate a pulling force for the grinding rollers 9, and the grinding rollers 9 are pulled tightly by the pulling force, so that a second gap is formed between the grinding rollers 9 and the grinding ring 101, namely a non-contact gap is formed between the grinding rollers 9 and the grinding ring 101, and the second gap is smaller than the first gap.
In a preferred embodiment, referring to fig. 2 again, the number of the U-shaped connecting supports 11 is four, four U-shaped connecting supports 11 are uniformly arranged at the end of the pressing support 3 at intervals along the circumferential direction of the main shaft 2 of the grinding roller, and at the same time, four pressing shaft sleeves 4, four grinding roller shafts 8 and four grinding rollers 9 are further arranged corresponding to the four U-shaped connecting supports 11, that is, four grinding rollers 9 and four grinding rings 101 are arranged in total, so that the grinding efficiency of the whole raymond mill 1 with the grinding roller pressurizing limiting device is the highest, and the grinding stability is the strongest.
The Raymond mill 1 with grinding roller pressurization stop device of this embodiment is when grinding the material, actuating mechanism drive grinding roller main shaft 2 rotates, drive in proper order through grinding roller main shaft 2 and compress tightly support 3, a plurality of axle sleeves 4 that compress tightly, a plurality of grinding roller axle 8 and a plurality of grinding roller 9 use grinding roller main shaft 2 to rotate as the axle center, because the effect of centrifugal force, make a plurality of grinding roller 9 outside (grinding ring 101) be close to, first clearance reduces, a plurality of springs 7 are tensile state, fine pressurization and cushioning effect have been played, tensile a plurality of axle sleeves 4 that compress tightly, and then tensile a plurality of grinding roller axle 8 and a plurality of grinding roller 9, and then play pressurization and cushioning effect to a plurality of grinding roller 9, reduce the vibration of the Raymond mill 1 with grinding roller pressurization stop device.
Meanwhile, the springs 7 enable a second gap to be formed between the grinding rollers 9 and the grinding ring 101, namely a non-contact gap is formed between the grinding rollers 9 and the grinding ring 101, so that the grinding rollers 9 and the grinding ring 101 are prevented from being in contact wear, the service lives of the two keys and heavy parts are prolonged, and the service life of the Raymond mill 1 with the grinding roller pressurizing limiting device is finally prolonged.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a Raymond mill with grinding roller pressurization stop device which characterized in that, the Raymond mill with grinding roller pressurization stop device includes:
the grinding roller main shaft is vertically arranged;
the pressing support is vertically and fixedly connected with the grinding roller main shaft and is driven by the grinding roller main shaft to rotate by taking the grinding roller main shaft as an axis;
the pressing shaft sleeves are uniformly arranged at intervals along the circumferential direction of the grinding roller main shaft and are vertically arranged, the sides of the pressing shaft sleeves, far away from the grinding roller main shaft, are connected with the pressing support, and the upper ends of the pressing shaft sleeves, close to the grinding roller main shaft, are respectively provided with a pressing lug extending upwards;
the plurality of limiting supports and the plurality of pressing lug plates are correspondingly arranged on the pressing supports and are positioned on the sides, far away from the grinding roller main shaft, of the plurality of pressing shaft sleeves;
the plurality of threaded pull rods are correspondingly arranged between the plurality of limiting supports and the plurality of pressing lug plates and are correspondingly connected with the plurality of limiting supports and the plurality of pressing lug plates, the sides of the plurality of pressing shaft sleeves, which are close to the grinding roller main shaft, are connected with the pressing supports through the plurality of pressing lug plates, the plurality of threaded pull rods and the plurality of limiting supports, and the plurality of pressing shaft sleeves are driven by the pressing supports to rotate by taking the grinding roller main shaft as an axis;
the springs are arranged on the threaded pull rods and positioned between the limiting support and the pressing lug plates, the springs are in a reset state, and when the pressing shaft sleeves rotate by taking the grinding roller main shaft as an axis, the springs are in a stretching state;
the top of the grinding roll shaft is correspondingly connected with the pressing shaft sleeves, the grinding roll shafts are connected with the pressing support through the pressing shaft sleeves, and the grinding roll shafts are driven by the pressing shaft sleeves to rotate by taking the grinding roll main shaft as an axis;
the grinding rollers are correspondingly and fixedly connected with the bottoms of the grinding roller shafts, and the grinding rollers are driven by the grinding roller shafts to rotate by taking the grinding roller main shafts as axes; and
the grinding chamber is provided with a plurality of grinding rings corresponding to the grinding rollers, the grinding rollers are correspondingly arranged in the grinding rings, a first gap is formed between the grinding rollers and the grinding rings, when the grinding rollers rotate by taking the grinding roller main shaft as an axis, the springs are in a stretching state and generate a pulling force for the grinding rollers, a second gap is formed between the grinding rollers and the grinding rings, and the second gap is smaller than the first gap.
2. The Raymond mill with a grinding roll pressurization limiting device of claim 1, further comprising a drive mechanism coupled to the grinding roll spindle, the drive mechanism configured to drive the grinding roll spindle to rotate.
3. The Raymond mill with a grinding roll pressurization limiting device as claimed in claim 1, wherein a shaft hole is further formed in the middle of the pressing support, and the grinding roll main shaft is vertically and fixedly connected with the pressing support through the shaft hole.
4. The Raymond mill with a grinding roller pressurization limiting device according to claim 1, further comprising a plurality of U-shaped connecting supports arranged at the end portions of the pressing support and uniformly arranged at intervals along the circumferential direction of the main shaft of the grinding roller, wherein the pressing support is connected with the plurality of pressing shaft sleeves through the plurality of U-shaped connecting supports.
5. The Raymond mill with a grinding roller pressurization limiting device according to claim 4, wherein each U-shaped connecting support is further provided with a fastening clamping groove at opposite sides, a plurality of pressing shaft sleeves are further provided with a connecting lug at a side away from the grinding roller spindle, the plurality of connecting lugs are correspondingly matched and connected with the plurality of fixing clamping grooves through a plurality of connecting shafts, and the pressing support is correspondingly connected with the plurality of pressing shaft sleeves through the plurality of connecting lugs and the plurality of fixing clamping grooves.
6. The Raymond mill with a grinding roll pressurization limiting device according to claim 5, wherein the number of the plurality of U-shaped connecting supports is four, and the four U-shaped connecting supports are uniformly arranged at the end of the pressing support at intervals along the circumferential direction of the main shaft of the grinding roll.
7. The Raymond mill with a grinding roll pressurization limiting device as claimed in claim 1, wherein a plurality of pressing covers are correspondingly arranged on the upper ends of a plurality of pressing shaft sleeves, and the plurality of pressing covers are used for sealing the upper ends of the plurality of pressing shaft sleeves.
8. The Raymond mill with a grinding roll pressurization limiting device as claimed in claim 1, wherein the lower ends of a plurality of the pressing shaft sleeves are further provided with an inverted trumpet-shaped connecting portion and a tightening shaft sleeve in sequence, and the tightening shaft sleeve is tightly pressed on the mill bin.
9. The raymond mill with a grinding roll pressurization limiting device of claim 1, wherein a plurality of said limiting supports are secured to said pressure support by at least two connecting bolts and a first nut assembly.
10. The Raymond mill with a grinding roll pressurization limiting device according to claim 1, further comprising a plurality of limiting rings and a plurality of second nut assemblies, wherein one end of each of the plurality of threaded pull rods passes through a plurality of corresponding limiting supports to be correspondingly connected with the plurality of limiting rings and is clamped on the plurality of limiting supports through the plurality of limiting rings, and the other end of each of the plurality of threaded pull rods passes through a plurality of corresponding clamping lugs to be connected with the plurality of second nut assemblies.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517163.XA CN110215970B (en) | 2019-06-14 | 2019-06-14 | Raymond mill with grinding roller pressurizing and limiting device |
| PCT/CN2020/080755 WO2020248647A1 (en) | 2019-06-14 | 2020-03-23 | Raymond mill with grinding roller pressurization and limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517163.XA CN110215970B (en) | 2019-06-14 | 2019-06-14 | Raymond mill with grinding roller pressurizing and limiting device |
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| Publication Number | Publication Date |
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| CN110215970A CN110215970A (en) | 2019-09-10 |
| CN110215970B true CN110215970B (en) | 2020-11-20 |
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| CN201910517163.XA Active CN110215970B (en) | 2019-06-14 | 2019-06-14 | Raymond mill with grinding roller pressurizing and limiting device |
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| WO (1) | WO2020248647A1 (en) |
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| CN110215970B (en) * | 2019-06-14 | 2020-11-20 | 南通利元亨机械有限公司 | Raymond mill with grinding roller pressurizing and limiting device |
| CN116727055B (en) * | 2023-06-30 | 2024-02-09 | 重庆巴山金宝饲料科技有限公司 | Milling equipment that feed processing used |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU676318A1 (en) * | 1975-05-11 | 1979-07-30 | Краснодарский Научно-Исследовательский Институт Пищевой Промышленности | Disintegrator |
| SU1584996A2 (en) * | 1983-04-14 | 1990-08-15 | Красноярский Политехнический Институт | Centrifugal mill |
| CN2176184Y (en) * | 1993-12-30 | 1994-09-07 | 郑州黎明机械制造有限公司 | Pressure mill with hanging rollers |
| CN2435148Y (en) * | 2000-05-10 | 2001-06-20 | 河南黎明重工有限公司 | High-pressure overhang roll mill |
| CN2770782Y (en) * | 2005-03-25 | 2006-04-12 | 河南黎明路桥重工有限公司 | Two-purpose super-pressure trapezoidal mill |
| CN201791551U (en) * | 2010-08-31 | 2011-04-13 | 山东华潍膨润土有限公司 | Adjustable pendulum type ring roll pulverizer for bentonite |
| CN204448164U (en) * | 2015-01-07 | 2015-07-08 | 河南黎明重工科技股份有限公司 | With the suspension mill of grinding roller limiting device |
| CN206853813U (en) * | 2017-06-16 | 2018-01-09 | 谭开强 | New-type flour mill |
| CN206823918U (en) * | 2017-06-16 | 2018-01-02 | 桂林矿山机械有限公司 | The low flour mill that shakes |
| CN110215970B (en) * | 2019-06-14 | 2020-11-20 | 南通利元亨机械有限公司 | Raymond mill with grinding roller pressurizing and limiting device |
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2019
- 2019-06-14 CN CN201910517163.XA patent/CN110215970B/en active Active
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2020
- 2020-03-23 WO PCT/CN2020/080755 patent/WO2020248647A1/en active Application Filing
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| WO2020248647A1 (en) | 2020-12-17 |
| CN110215970A (en) | 2019-09-10 |
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