CN2389002Y

CN2389002Y - Vertical roller mill

Info

Publication number: CN2389002Y
Application number: CN 99233773
Authority: CN
Inventors: 陈蕾; 陈天翔
Original assignee: Hunan Guangyi Sci & Tech Co ltd
Current assignee: Hunan Guangyi Sci & Tech Co ltd
Priority date: 1999-07-27
Filing date: 1999-07-27
Publication date: 2000-07-26
Anticipated expiration: 2009-07-27

Abstract

A vertical roller mill comprises a main shaft, a disc chuck, a grinding roller and a mill body, and is characterized in that the mill body is formed by mutually connecting an upper mill body, a middle mill body and a base into a whole, the main shaft is fixed on the upper mill body through a bearing seat, the disc chuck arranged in the middle mill body is fixed on the main shaft, a material scattering disc is arranged on the main shaft, two or more holes are formed in the disc chuck, hinge shafts are arranged in the holes, one end of a rocker arm is connected with the disc chuck through the hinge shafts, and the other end of the rocker arm is connected with the grinding roller. The utility model discloses grinding power is adjustable, wearing and tearing are little, the energy consumption is low, grinding is effectual, the reality of technology and material is strong, the noise is little, the operation is reliable, dismantle easy maintenance.

Description

Vertical roll grinder

The utility model relates to a kind of material dry method grinding device that is used for industry production processes such as chemical industry, building materials, mine, the energy.

Raymond mill be widely used in various in, softer material a kind of centrifugal milling equipment, but there is the defective of following primary structure and usefulness aspect in Raymond mill: (1) grinding roller directly contacts with bull ring and makes the impulsive force increase, weares and teares and aggravates; (2) grinding power source is a centrifugal force, and concerning many materials, it is not enough that grinding power seems; (3) classification, transfer efficiency are low, the energy consumption height; (4) structural limitations its increase the possibility of grinding roller size; (5) there is very big sliding friction in perching knife feeding, makes power consumption and wearing and tearing aggravation.The Decree of Patent Office of China a kind of ring-roller mill (day for announcing: April 12 nineteen ninety-five, notification number: CN2194214Y), though the more traditional Raymond mill of this grinding machine has certain improvement, but also there is following defective in this grinding machine: (1) grinding roller directly is movably arranged on the support, support and upper casing are connected in one, last, between the lower casing, elastic mechanism all is housed between support and the grinding roller, entire machine all is in a kind of motion state from outside to inside during work, like this, not only the complete machine wearing and tearing are big, consume height, and, noise and vibration are very serious, do not meet environmental requirement; (2) owing to infinite place device between grinding roller and the mill, the direct collision of the two causes the wearing and tearing aggravation; (3) grinding power inconvenience is adjusted, and actual grinding power is the smaller value among the power that produces of centrifugal force and elastic mechanism.

The purpose of this utility model is the defective that overcomes above-mentioned prior art, and the vertical roll grinder that a kind of grinding power is big, mill efficiency is high, power consumption is low, wearing and tearing are little, abrasive dust power is adjustable, noise is lower, Technological adaptability is wide is provided.

The purpose of this utility model is to realize by following technical scheme.It is made up of main shaft, floral disc, grinding roller and body etc., it is characterized in that body is interconnected to integral body by upper machine body, middle body and base, and main shaft places on the bearing, bearing block is fixed on the upper machine body, in the body, be fixed on the main shaft during floral disc is located at, spreading disk is housed on it.In the hole that offers at least on the floral disc more than two or two, a hinge is installed in the hole, rocking arm one end joins by hinge and floral disc, and the other end joins with the grinding roller that is positioned at base.Between floral disc and rocking arm, elastic device is set.The quantity of elastic device is more than 0 or 0.Elastic device is made of spring, spring base, pretension screw rod, the protruding axle etc. that is arranged at wall outside the rocking arm, and spring adopts metal or nonmetallic materials, is extension spring, stage clip, torsionspring, or is liquid spring or gas spring.The rocking arm outer wall is provided with stopping means, and stopping means is by adjusting seat, adjusting lever, being arranged on special of the rocking arm outer wall etc. and constituting.Base inner wall is established abrasion-proof backing block.Floral disc is plate-like or plum blossom frame shape.The grinding roller outer wall is smooth or non-shiny surface.Abrasion-proof backing block inwall bus be vertical line or and ground inclination, its inner wall surface is shiny surface or non-shiny surface.

The utlity model has following technique effect:

1, adopt the top kind of drive, the mill shaft size is not positioned at the size that main shaft hinders and acquisition is bigger at center, thereby the feed size of permission is strengthened;

2, body is interconnected to integral body by upper machine body, middle body and base three parts, does not have relative motion, good stability during work between body, safe and reliable, simultaneously, dismounting and maintenance are also very convenient, and the window of offering on the wherein middle body is convenient to inspection, adjustment and oiling.

3, utilize special stopping means of rocking arm outer wall can limit the outside range of movement of grinding roller, adjust the best clearance when no material enters between grinding roller and abrasion-proof backing block, bring into play grinding effect better with compositions such as adjustment seat and adjusting levers.

4, between floral disc and rocking arm elastic device is set, elastic device is made of spring etc., by rocking arm spring force is delivered to grinding roller, utilizes the material of making a concerted effort to roll of spring force and centrifugal force, and the adaptability of technology and material is strengthened, and crush force improves.

5, each moving component all is arranged on internal body, and noise is little, and dust is few, good work environment.

6, simple in structure, be easy to make, reliable, easy to maintenance.

Description of drawings:

Fig. 1 is the utility model example structure installation diagram.

Wherein: the 1-main shaft; The 2-bearing block; The 3-dish; The 4-spring; The 5-axle; 6-adjusts seat; The 7-adjusting lever; Body among the 8-; The 9-base; The 10-upper machine body; The 11-spreading disk; The 12-spring base; The 13-rocking arm; Special of 131-; 14-pretension screw rod; The protruding axle of 15-; The 16-grinding roller; The 17-abrasion-proof backing block; The 18-body; The 19-elastic device; The 20-stopping means; Special of 131-

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, the utility model is by main shaft 1, floral disc 3, compositions such as grinding roller 16 and body 18, body 18 is divided into upper machine body 10, middle body 8 and 9 three parts of base, and base 9 is installed on the basis by bolt, and its inwall is provided with abrasion-proof backing block 17, within the abrasion-proof backing block 17 the wall bus be vertical line or and ground inclination, inner wall surface can be shiny surface or make the band serrate slot non-shiny surface.In body 8 is upper and lower connects respectively with upper machine body 10 and base 9 by bolt, which is provided with a window, be convenient to inspection, adjustment and oiling.Upper machine body 10 is provided with charging aperture, and bearing block 2 is connected on the upper machine body 10, is provided with bearing in it.Main shaft 1 is contained on the bearing block 2 by bearing, bearing cap etc., can rotate under the drive of motor, and floral disc 3 is fixed on the main shaft 1 by key and nut, is arranged in body 8, establishes a spreading disk 11 on it.When main shaft 1 rotation, spreading disk 11 and floral disc 3 rotation synchronously under it drives.On floral disc 3, offer two or two above holes at least, one hinge 5 is installed in the hole; rocking arm 13 1 ends and hinge 5 are hinged; can rotate around hinge 5 center lines; grinding roller 16 is contained in the other end of rocking arm 13; the two keeps position relation in relative rotation by bearing, promptly grinding roller 16 both can rotate around hinge 5 center lines under the drive of rocking arm 13 again around self axis rotation.For improving friction between grinding roller 16 and abrasion-proof backing block 17 inwalls, to be convenient to material and to enter, the inner wall surface of grinding roller 16 outer walls and abrasion-proof backing block 17 can be processed into the non-shiny surface of being with serrate slot etc.For restriction grinding roller 16 outwards move; rocking arm 13 outer walls are established special 131; be fixed on adjustment seat 6 on the floral disc 3, adjust the formation stopping means such as adjusting lever 7 that are provided with on the seat 6; can adjust 17 best clearance when no material enters of grinding roller 16 and abrasion-proof backing block, avoid the direct collision between grinding roller 16 and abrasion-proof backing block.During grinding material, grinding roller 16 can be done inwardly motion to main shaft 1 centerline direction, and outwards motion then is restricted, and makes it both have certain tolerance, can reach best crushing effect again.

In the present embodiment, floral disc 3 also offers groove, and spring 4 one ends place in the groove, and the other end places on the spring base 12, and this spring base 12 is connected with main shaft 1 by pretension screw rod 14.In spring base 12 bottoms, establish a protruding axle 15, this protruding axle 15 is arranged at wall outside the rocking arm 13, can transmit and bear the active force of spring 4.Above-mentioned spring 4, spring base 12, pretension screw rod 14, the protruding axle 15 etc. that is arranged at wall outside the rocking arm 13 have constituted elastic device 19.

The utility model, spring 4 can adopt metal or nonmetallic materials, and its shape can be various ways such as stage clip, extension spring, torsion spring, also can be hydraulic spring grease cup or gas spring, can also to each rocking arm 13 spring be set separately according to the structure needs.

During work, thereby main shaft 1 drives spreading disk 11, floral disc 3 rotates rotor parts such as rocking arm 13, grinding roller 16 synchronously.When material did not enter, rocking arm 13 was limited by stopping means, made between grinding roller 16 and the abrasion-proof backing block 17 to keep certain interval.After material enters from A, spread wall within middle body 8 by spreading disk 11, fall to entering wall within the abrasion-proof backing block 17 at gravity effect lower edge inwall, 16 of grinding rollers under frictional force and the material drag effect with rocking arm 13 outside wall produce relative rotation, thereby roll material, grinding pressure then is making a concerted effort of being formed by stacking of centrifugal force and acting force of the spring, change rotating speed or adjustment spring force can be adjusted grinding power size easily, under some situation, also can be without spring, only by centrifugal action.By the material of grinding, discharge from discharging opening B.Blanking velocity, thickness of feed layer and product grade constitute and can control by the influence factors such as flow velocity of the gap length material outlet between angle, grinding roller 16 and the abrasion-proof backing block of abrasion-proof backing block 17 inwalls.

Claims

1, a kind of vertical roll grinder, it is by main shaft (1), floral disc (3), grinding roller (16) and body compositions such as (18) is characterized in that described body (18) is interconnected to integral body by upper machine body (10), middle body (8) and base (9); Main shaft (1) places on the bearing block (2), and bearing block (2) is fixed on the upper machine body (10); Described floral disc (3) is located in the middle body (8), is fixed on the main shaft (1), and spreading disk (11) is housed on it; At least offer two or two above holes on floral disc (3), a hinge (5) is installed in the hole, rocking arm (13) one ends join by hinge (5) and floral disc (3), and the other end joins with the grinding roller (16) that is positioned at base (9).

2, vertical roll grinder according to claim 1 is characterized in that: between floral disc (3) and rocking arm (13) elastic device (19) is set.

3, vertical roll grinder according to claim 1 is characterized in that: rocking arm (13) outer wall is provided with stopping means (20).

4, vertical roll grinder according to claim 1 is characterized in that: base (9) inwall is established abrasion-proof backing block (17).

5, vertical roll grinder according to claim 1, its characteristics are: floral disc (3) is plate-like or plum blossom frame shape.

6, vertical roll grinder according to claim 2, it is characterized in that: elastic device (19) is made of spring (4), spring base (12), pretension screw rod (14), the protruding axle (15) that is arranged at wall outside the rocking arm (13), spring (4) one ends place in the groove of offering on the floral disc (3), the other end places on the spring base (12), this spring base (12) is connected with main shaft (1) by pretension screw rod (14), spring base (12) bottom and be arranged at that protruding (15) of wall join outside the rocking arm (13); Spring (4) adopts metal or nonmetallic materials, is extension spring, stage clip, torsionspring, or is liquid spring or gas spring.

7, vertical roll grinder according to claim 3 is characterized in that: stopping means (20) is made of special (131) adjusting seat (6), an adjusting lever (7), be arranged on rocking arm (13) outer wall; Adjust seat (6) and be fixed on the floral disc (3), adjusting lever (7) is arranged on to be adjusted on the seat (6), and an end of adjusting lever (7) joins with special (131) being arranged on rocking arm (13) outer wall.

8, vertical roll grinder according to claim 4 is characterized in that; Abrasion-proof backing block (17) inwall bus be vertical line or and ground inclination, its inner wall surface is shiny surface or non-shiny surface.