CN108816342B

CN108816342B - Roller type flour mill with adjustable roll gap

Info

Publication number: CN108816342B
Application number: CN201810383400.3A
Authority: CN
Inventors: 周晓红
Original assignee: Dezhou Jinghua Group Pingyuan Dam Cement Co Ltd
Current assignee: Dezhou Jinghua group (Pingyuan) dam Cement Co., Ltd
Priority date: 2018-04-26
Filing date: 2018-04-26
Publication date: 2020-11-10
Anticipated expiration: 2038-04-26
Also published as: CN108816342A

Abstract

The invention discloses a roller type pulverizer with adjustable rolling distance, which comprises a lifting device and a bearing plate, wherein the upper end of the bearing plate is fixedly connected with a shell, the upper end of the shell is fixedly connected with a feed inlet, the inner wall of the shell is provided with a first chute, a first sliding block is connected in the first chute in a sliding manner, the side wall of the first sliding block is provided with a groove, a first nut is fixedly connected in the groove, the inner wall of the shell is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a first threaded rod, the first threaded rod is matched with the first nut, the inner wall of the shell is provided with a second chute at a position symmetrical to the first chute, and a second sliding block is connected in the second chute in a sliding manner. The invention can adjust the rolling distance, one machine can produce powder with different granularities, and the teeth on the round roller are changed into toothed plates, thereby being convenient to disassemble and replace.

Description

Roller type flour mill with adjustable roll gap

Technical Field

The invention relates to the technical field of roller type flour mills, in particular to a roller type flour mill with an adjustable roll nip.

Background

The roller mill, a kind of oldest crushing equipment, its simple structure, still obtain the application in chemical industry fields such as cement, silicate now, the milling machine is used in the grinding processing of material in fields such as metallurgy, building materials, chemical industry, mine extensively, the normal operation of the roller mill, depend on the degree of wear of the roller skin in many respects, when the round roller is in good condition, can obtain higher production capacity and discharge qualified product granularity, therefore, should know the influence factor that the roller skin wears, and the problem that should pay attention to in familiar with the operation, the wearing and tearing condition of the tooth on round roller and round roller is examined regularly, in time repairs and changes. The round rollers are gradually worn down when crushing the ore. The main factors affecting the wear of the round roll are: hardness of ore to be processed, strength of the material of the round roller, surface shape and specification size of the round roller, operation conditions, feeding manner, feeding granularity and the like. At present, the roll distance between two rollers of the roller mill that is used usually can not be adjusted, can not grind the material of different diameters, produces the powder product of different granularities, and in addition, the tooth on the present round roller is welded fastening, and the change is difficult for demolising after wearing and tearing destruction, greatly reduced work efficiency, the whole round roller that changes cost is higher, causes the waste, and not changing will influence the grinding effect again.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a roller type flour mill with adjustable rolling distance, which can adjust the rolling distance, one mill can produce powder with different granularities, and teeth on a round roller are changed into toothed plates, so that the roller type flour mill is convenient to disassemble and replace.

In order to achieve the purpose, the invention adopts the following technical scheme:

a roll-type pulverizer with adjustable roll distance comprises a lifting device and a bearing plate, wherein the upper end of the bearing plate is fixedly connected with a shell, the upper end of the shell is fixedly connected with a feed inlet, the inner wall of the shell is provided with a first chute, the first chute is in sliding connection with a first sliding block, the side wall of the first sliding block is provided with a groove, the groove is internally and fixedly connected with a first nut, the inner wall of the shell is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a first threaded rod, the first threaded rod is matched with the first nut, the inner wall of the shell is provided with a second chute at the position symmetrical to the first chute, the second chute is in sliding connection with a second sliding block, the side wall of the second sliding block opposite to the first sliding block is connected with a first rotating shaft in a common rotating manner, and the side wall of the first rotating shaft is fixedly connected with a first, a second rotating shaft is rotatably connected to the inner wall of the shell opposite to the first rotating shaft, a fast roller, a second belt wheel and a third belt wheel are fixedly connected to the side wall of the second rotating shaft, a first cylinder is fixedly connected to the inner wall of the shell, a first spring is fixedly connected to the inner wall of the first cylinder, a slide rod is fixedly connected to the lower end of the first spring and is connected with the first cylinder in a sliding manner, a tension pulley is rotatably connected to the lower end of the slide rod, a first belt is sleeved on the first belt wheel, the second belt wheel and the tension pulley together, a second motor is fixedly connected to the inner wall of the shell, a fourth belt wheel is fixedly connected to the output shaft of the second motor, a second belt is sleeved between the fourth belt wheel and the third belt wheel together, a plurality of third sliding grooves are formed in the side walls of the fast roller and the slow roller at equal intervals along the circumferential direction of the side walls, and a toothed plate is slidably connected to, every the left end of pinion rack all is equipped with locking device, fixedly connected with connects the powder fill on the inner wall of shell, be equipped with the sieving mechanism on the inner wall of shell, be located on the inner wall of shell and connect the powder fill position fixedly connected with play hopper under, the lower extreme that goes out the hopper runs through the loading board.

Preferably, the lifting device is four second drums that are rectangle fixed connection including placing in the subaerial bottom plate and the downside of loading board, the upside of bottom plate is located four cylinders of position fixedly connected with under four second drums, four the equal fixedly connected with second threaded rod in cylindrical upper end, four the lower extreme of second drum all rotates and is connected with rotatory handle, four the equal fixedly connected with second nut of downside of rotatory handle, the second nut is mutually supported with the second threaded rod.

Preferably, the sieving mechanism is including running through and sliding connection the sieve on the shell lateral wall, the first fixed block of one end fixedly connected with of sieve, connect on the lateral wall of shell through the second spring on the lateral wall of first fixed block, the one end fixedly connected with second fixed block of first fixed block is kept away from to the sieve, fixedly connected with third motor on the lateral wall of shell, fixedly connected with cam on the output shaft of third motor, the cam offsets with the second fixed plate.

Preferably, locking device includes spacing hole on the pinion rack lateral wall and fixes the bolt cover on slow roller and fast roller lateral wall, sliding connection has the spacer pin in the bolt cover, the lower extreme of spacer pin passes through the third spring coupling on the inner wall of bolt cover, fixedly connected with handle on the lateral wall of spacer pin, the handle runs through the bolt cover, handle and bolt cover sliding connection, the spacer pin is mutually supported with spacing hole.

Preferably, grease is coated between the slide bar and the first cylinder.

Preferably, the first spring is a compression spring.

According to the invention, a second motor is started, the second motor drives a fast roller to rotate, the fast roller drives a slow roller to rotate through transmission of a belt wheel, a tensioning wheel enables a belt to be in a tensioned state all the time, the belt wheel is prevented from slipping and failing, when a rolling distance needs to be adjusted, the first motor is controlled to rotate, the first motor drives a first threaded rod to rotate, the first threaded rod drives a sliding block to move in a sliding groove, the sliding block drives a slow roller to move, the rolling distance is adjusted and controlled, a third motor is started, the third motor drives a cam to rotate, the cam enables a screen plate to move back and forth, ground materials are screened, unqualified materials with larger particle sizes are removed, when teeth on a toothed plate are worn, a handle is pressed, a limiting pin is separated from a limiting hole, then the toothed plate is drawn out and replaced, the handle is loosened after a new toothed plate is replaced, the limiting pin is inserted into the limiting hole under the. The invention can adjust the rolling distance, one machine can produce powder with different granularities, the teeth on the round roller are changed into toothed plates, and the disassembly and the replacement are convenient

Drawings

FIG. 1 is a schematic structural view of a roller mill with adjustable roll gap according to the present invention;

FIG. 2 is a schematic left-side view of a roller mill with adjustable roll gap according to the present invention;

FIG. 3 is a schematic structural view of a roller mill with adjustable roll gap at a first rotation axis according to the present invention;

FIG. 4 is a schematic structural view of a second rotating shaft of the roller mill with adjustable roll gap according to the present invention;

fig. 5 is an enlarged schematic view of a structure at a point a of the roller mill with adjustable roll gap according to the present invention.

In the figure: the automatic powder feeding device comprises a base plate 1, a bearing plate 2, a second spring 3, a first fixing block 4, a sieve plate 5, a first nut 6, a first threaded rod 7, a first motor 8, a first sliding block 9, a shell 10, a first sliding chute 11, a feed inlet 12, a first spring 13, a sliding rod 14, a powder receiving hopper 15, a second fixing plate 16, a cam 17, a third motor 18, a discharge hopper 19, a second cylinder 20, a rotary handle 21, a second nut 22, a second threaded rod 23, a cylinder 24, a second belt 25, a second motor 26, a fourth belt wheel 27, a second belt wheel 28, a tensioning wheel 29, a first belt 30, a second sliding chute 31, a first belt wheel 32, a first cylinder 33, a first rotating shaft 34, a slow roller 35, a second sliding block 36, a second rotating shaft 37, a fast roller 38, a third belt wheel 39, a toothed plate 40, a 41 limit hole, a 42 limit pin, a 43 handle, a third spring 44 and a 45 bolt sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a roller mill with adjustable roll distance comprises a lifting device and a bearing plate 2, wherein the lifting device comprises a bottom plate 1 placed on the ground and four second cylinders 20 fixedly connected with the lower sides of the bearing plate 2 in a rectangular shape, the upper side of the bottom plate 1 is fixedly connected with four cylinders 24 at positions right below the four second cylinders 20, the upper ends of the four cylinders 24 are fixedly connected with second threaded rods 23, the lower ends of the four second cylinders 20 are rotatably connected with rotating handles 21, the lower sides of the four rotating handles 21 are fixedly connected with second nuts 22, the second nuts 22 are matched with the second threaded rods 23, the upper end of the bearing plate 2 is fixedly connected with a shell 10, the upper end of the shell 10 is fixedly connected with a feed inlet 12, the inner wall of the shell 10 is provided with a first chute 11, a first sliding block 9 is slidably connected with the first chute 11, and the side wall of the first sliding block, a first nut 6 is fixedly connected in the groove, a first motor 8 is fixedly connected on the inner wall of the shell 10, a first threaded rod 7 is fixedly connected on the output shaft of the first motor 8, the first threaded rod 7 is matched with the first nut 6, a second chute 31 is arranged on the inner wall of the shell 10 and is symmetrical to the first chute, a second slide block 36 is connected in the second chute 31 in a sliding manner, a first rotating shaft 34 is connected on the side wall of the second slide block 36 opposite to the first slide block 9 in a rotating manner, a first belt wheel 32 and a slow roller 35 are fixedly connected on the side wall of the first rotating shaft 34, when the roll distance needs to be adjusted, the first motor 8 is controlled to rotate, the first motor 8 drives the first threaded rod 7 to rotate, the first threaded rod 7 drives the slide block to move in the chute, the slide block drives the slow roller 35 to move, a second rotating shaft 37 is connected on the inner wall of the shell 10 in a rotating manner, and a fast roller 38 is fixedly, A second belt wheel 28 and a third belt wheel 39, a first cylinder 33 is fixedly connected on the inner wall of the housing 10, a first spring 13 is fixedly connected on the inner wall of the first cylinder 33, a slide rod 14 is fixedly connected at the lower end of the first spring 13, the slide rod 14 is connected with the first cylinder 33 in a sliding manner, a tension pulley 29 is rotatably connected at the lower end of the slide rod 14, the tension pulley 29 enables the belt to be in a tight state all the time, the slip failure of the belt wheels is avoided, the first belt wheel 30 is sleeved on the first belt wheel 32, the second belt wheel 28 and the tension pulley 29 together, a second motor 26 is fixedly connected on the inner wall of the housing 10, the second motor 26 is started, the second motor 26 drives the fast roller 38 to rotate, the fast roller 38 drives the slow roller 35 to rotate through belt wheel transmission, a fourth belt wheel 27 is fixedly connected on the output shaft of the second motor 26, a second belt 25 is sleeved between the fourth belt wheel 27 and the third belt wheel 39 together, a plurality of third chutes are arranged on the side walls of, each third sliding chute is internally and slidably connected with a toothed plate 40, the left end of each toothed plate 40 is provided with a locking device, each locking device comprises a limiting hole 41 on the side wall of the toothed plate 40 and a bolt sleeve 45 fixed on the side wall of the slow roller and the fast roller, a limiting pin 42 is slidably connected with the bolt sleeve 45, the lower end of the limiting pin 42 is connected on the inner wall of the bolt sleeve 45 through a third spring 44, the side wall of the limiting pin 42 is fixedly connected with a handle 43, the handle 43 penetrates through the bolt sleeve 45, the handle 43 is slidably connected with the bolt sleeve 45, the limiting pin 42 is matched with the limiting hole 41, when the teeth on the toothed plate are worn, the handle 43 is pressed down, the limiting pin 42 is separated from the limiting hole 41, then the toothed plate 40 is drawn out, the toothed plate 40 is replaced, after a new toothed plate 40 is replaced, the handle 43 is loosened, the limiting pin 42 is inserted into the limiting hole 41 under the action of the third spring 44 to fix the toothed plate 40, the powder receiving hopper 15 is, the inner wall of the shell 10 is provided with a screening device, the screening device comprises a screen plate 5 which penetrates through and is connected on the side wall of the shell 10 in a sliding manner, one end of the screen plate 5 is fixedly connected with a first fixed block 4, the side wall of the first fixed block 4 is connected on the side wall of the shell 10 through a second spring 3, one end of the screen plate 5 far away from the first fixed block 4 is fixedly connected with a second fixed block 16, the side wall of the shell 10 is fixedly connected with a third motor 18, the output shaft of the third motor 18 is fixedly connected with a cam 17, the cam 17 is abutted against the second fixed block 16, the third motor 18 is started, the third motor 18 drives the cam 17 to rotate, and the cam 17 enables the, the ground materials are screened to remove unqualified materials with larger particle size, a discharge hopper 19 is fixedly connected to the inner wall of the shell 10 at a position right below the powder receiving hopper 15, and the lower end of the discharge hopper 19 penetrates through the bearing plate 2.

In the present invention, grease is applied between the sliding rod 14 and the first cylinder 33, the first spring 13 is a compression spring, a certain gap is provided between the coils of the compression spring, the spring contracts and deforms when an external load is applied, and the first spring 13 is compressed when being installed, and is always stretched into the first belt 30.

In the invention, the second motor 26 is started, the second motor 26 drives the fast roller 38 to rotate, the fast roller 38 drives the slow roller 35 to rotate through the transmission of the belt wheel, the tensioning wheel 29 enables the belt to be always in a tensioned state, the slip failure of the belt wheel is avoided, when the rolling distance needs to be adjusted, the first motor 8 is controlled to rotate, the first motor 8 drives the first threaded rod 7 to rotate, the first threaded rod 7 drives the sliding block to move in the sliding groove, the sliding block drives the slow roller 35 to move, the rolling distance is adjusted and controlled, the third motor 18 is started, the third motor 18 drives the cam 17 to rotate, the cam 17 enables the sieve plate 5 to move back and forth, ground materials are screened, unqualified materials with larger granularity are removed, when teeth on the toothed plate are worn, the handle 43 is pressed down, the limiting pin 42 is separated from the limiting hole 41, then the toothed plate 40 is drawn out, the toothed plate 40 is replaced, after a new toothed plate 40 is replaced, the handle 43 is loosened, the limiting pin 42 is, holding the toothed plate 40.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The roller type flour mill with the adjustable rolling distance comprises a lifting device and a bearing plate (2), and is characterized in that an outer shell (10) is fixedly connected to the upper end of the bearing plate (2), a feed inlet (12) is fixedly connected to the upper end of the outer shell (10), a first sliding chute (11) is formed in the inner wall of the outer shell (10), a first sliding block (9) is connected to the first sliding chute (11) in a sliding mode, a groove is formed in the side wall of the first sliding block (9), a first nut (6) is fixedly connected to the inner portion of the groove, a first motor (8) is fixedly connected to the inner wall of the outer shell (10), a first threaded rod (7) is fixedly connected to the output shaft of the first motor (8), the first threaded rod (7) is matched with the first nut (6), a second sliding chute (31) is formed in the position, symmetrical to the first sliding chute, on the inner wall of, a second sliding block (36) is connected in the second sliding groove (31) in a sliding manner, a first rotating shaft (34) is connected to the side wall of the second sliding block (36) opposite to the first sliding block (9) in a rotating manner, a first belt wheel (32) and a slow roller (35) are fixedly connected to the side wall of the first rotating shaft (34), a second rotating shaft (37) is connected to the inner wall of the shell (10) in a rotating manner, a fast roller (38), a second belt wheel (28) and a third belt wheel (39) are fixedly connected to the side wall of the second rotating shaft (37), a first cylinder (33) is fixedly connected to the inner wall of the shell (10), a first spring (13) is fixedly connected to the inner wall of the first cylinder (33), a sliding rod (14) is fixedly connected to the lower end of the first spring (13), the sliding rod (14) is connected to the first cylinder (33) in a sliding manner, and a tension wheel (29) is rotatably connected to the lower end of the, the powder conveying device is characterized in that a first belt (30) is sleeved on the first belt wheel (32), the second belt wheel (28) and the tensioning wheel (29) together, a second motor (26) is fixedly connected to the inner wall of the shell (10), a fourth belt wheel (27) is fixedly connected to the output shaft of the second motor (26), a second belt (25) is sleeved between the fourth belt wheel (27) and the third belt wheel (39) together, a plurality of third sliding grooves are formed in the side walls of the fast roller (38) and the slow roller (35) along the circumferential direction at equal intervals, a toothed plate (40) is connected in each third sliding groove in a sliding mode, a locking device is arranged at the left end of each toothed plate (40), a powder receiving hopper (15) is fixedly connected to the inner wall of the shell (10), a screening device is arranged on the inner wall of the shell (10), and a discharging hopper (19) is fixedly connected to the position, which is located right below the powder receiving hopper (15), on the inner wall of the shell (10, the lower end of the discharge hopper (19) penetrates through the bearing plate (2); the lifting device comprises a bottom plate (1) placed on the ground and four second cylinders (20) fixedly connected with the lower side of a bearing plate (2) in a rectangular shape, the upper side of the bottom plate (1) is fixedly connected with four cylinders (24) at positions right below the four second cylinders (20), the upper ends of the four cylinders (24) are fixedly connected with second threaded rods (23), the lower ends of the four second cylinders (20) are rotatably connected with rotating handles (21), the lower sides of the four rotating handles (21) are fixedly connected with second nuts (22), and the second nuts (22) are matched with the second threaded rods (23); the screening device comprises a screening plate (5) which penetrates through and is connected to the side wall of a shell (10) in a sliding mode, one end of the screening plate (5) is fixedly connected with a first fixing block (4), the side wall of the first fixing block (4) is connected to the side wall of the shell (10) through a second spring (3), one end, far away from the first fixing block (4), of the screening plate (5) is fixedly connected with a second fixing block (16), the side wall of the shell (10) is fixedly connected with a third motor (18), an output shaft of the third motor (18) is fixedly connected with a cam (17), and the cam (17) abuts against the second fixing plate (16); the locking device comprises a limiting hole (41) in the side wall of the toothed plate (40) and a pin sleeve (45) fixed on the side wall of the slow roller and the fast roller, a limiting pin (42) is connected in the pin sleeve (45) in a sliding mode, the lower end of the limiting pin (42) is connected to the inner wall of the pin sleeve (45) through a third spring (44), a handle (43) is fixedly connected to the side wall of the limiting pin (42), the handle (43) penetrates through the pin sleeve (45), the handle (43) is connected with the pin sleeve (45) in a sliding mode, and the limiting pin (42) is matched with the limiting hole (41); lubricating grease is coated between the sliding rod (14) and the first cylinder (33); the first spring (13) is a compression spring.