CN100493720C - Planetary rolling sand mill - Google Patents

Abstract

A planetary rolling sand grinding machine comprises the screening plate as the sand output channel, body, powder collecting mechanism, big rolling ring, broken stone roller inside the cavity formed by the body and the big rolling ring, grinding roller and inner wall of the big rolling ring of the broken stone grinder forming the sub planetary rolling grinding, powder collecting device on the top of the body, one end of the main shaft support mechanism fastened on the top cover of the body, the other end inserted into the inner cavity of the body, one end of the main shaft of the main shaft support mechanism connected with the output end of the drive mechanism, the other end connected with the cross bracket of the broken stone crusher, with the screening plate under or on the bottom of the big rolling ring. It is high in efficiency, compact in structure, conforming to the requirement of environment protection.

Description

Planetary rolling sand mill

technical field

The invention belongs to production equipment for building sand and powder, in particular to equipment integrating sand making and powder grinding functions.

Background technique

Sand is one of the main materials used in a large amount in the construction industry. In many areas, natural sand can no longer meet the needs of society. Therefore, the mechanical sand making industry came into being. It is understood that vertical impact breaking (seeing Chinese patent ZL200420022344.4), hammer breaking (seeing Chinese patent ZL01272759.8) and cone breaking are mostly used in the existing sand making equipment. These types of equipment have a better crushing effect on stones larger than 20mm, and poor crushing effects on stones smaller than 10mm. Most of the sand produced is produced during the stone crushing process or the process of removing edges and corners. The size of the produced sand is mostly above 5mm, and its fineness modulus is above the level of coarse sand, and most of the sand gradation cannot meet the requirements of the national standard for machine-made sand. It can be said that the existing sand making equipment is difficult to break all the stones into medium sand or fine sand, and what the construction industry urgently needs is the variety of fineness modulus belonging to medium sand and fine sand. In addition, the sand processing site is full of stone powder and serious pollution, which also restricts the development of the industry.

Raymond mill is a kind of grinding equipment that meets the requirements of environmental protection, but it can only produce powder.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a planetary rolling sand mill, which integrates the functions of sand making and milling, and can grind all the stones into fineness modulus below medium sand. It has good gradation, high work efficiency, compact structure and meets environmental protection requirements.

The planetary rolling sand making mill of the present invention is an improvement on the basis of the existing Raymond mill. The improvement mainly involves the setting of the finished sand discharge channel-the sieve plate and the main shaft support mechanism, transmission mechanism and The installation position of the powder collection mechanism.

The planetary rolling sand making mill of the present invention includes a body with a feed inlet, a sieve plate as a discharge channel for finished sand, a powder material collection mechanism, a large roller ring, a crushing and crushing mechanism, a main shaft support mechanism, The transmission mechanism and the motor connected to the power input end of the transmission mechanism; the crushing and crushing mechanism includes a plum frame, at least two sets of grinding roller assemblies, grinding rollers and blades matching the number of grinding roller assemblies, and each grinding roller assembly is separated It is hinged with the plum blossom frame at a certain angle, the grinding roller is fixedly connected with the rotating shaft in the grinding roller assembly, and the handle of the blade is fixedly connected with the plum blossom frame, and the fixed connection position is between the two grinding roller assemblies. The assembly method of the above parts and components is as follows: the body is a cylinder, its upper end is provided with a top cover, its lower end is combined with a large roller ring, and the crushing mechanism is located in the cavity formed by the combination of the body and the large roller ring. The grinding roller in the mechanism and the inner wall of the large roller ring form a planetary rolling rolling pair. The powder collection device is installed on the top cover of the machine body. One end of the main shaft support mechanism is fixed on the top cover of the machine body, and the other end is inserted into the body cavity. One end of the main shaft in the support mechanism is connected to the power output end of the transmission mechanism, and the other end is connected to the plum blossom frame in the crushing and crushing mechanism. The sieve plate used as the discharge channel of the finished sand is set under or at the bottom of the large roller ring. .

In the above-mentioned sand making and milling machine, the sieve plate can be installed in various ways. It can be inserted on the base connected to the bottom of the large roller ring, or can be directly connected to the large roller ring through threaded connection, card connection, etc. The sand passing holes set on the sieve plate match the particle gradation of construction sand.

In the above-mentioned sand milling machine, the transmission mechanism is a compound transmission mechanism composed of a belt transmission pair and a reduction box.

The present invention has the following beneficial effects:

1. Since the massive stones can be repeatedly crushed and crushed during the planetary rolling of the grinding roller, the particles smaller than the sieve plate holes can fall through the sieve plate holes, so as long as the size of the sieve plate holes is controlled, all the stones can be crushed It is a variety with a fineness modulus below medium sand, and it is well graded.

2. Since the stones are impacted and vibrated while being crushed and crushed, the production efficiency is very high.

3. Since there is a powder collection mechanism, the powder collection mechanism keeps the inside of the body in a negative pressure state during work, so it can not only eliminate dust pollution, meet environmental protection requirements, but also obtain high-value stone powder.

4. The structure is simple and easy to manufacture.

Description of drawings

Fig. 1 is a kind of structural diagram of planetary rolling type sand making mill of the present invention;

Fig. 2 is A-A sectional view of Fig. 1;

Fig. 3 is the B-B sectional view of Fig. 1;

Figure 4 is a structural diagram of the sieve plate.

In the figure, 1—sieve plate, 2—large roller ring, 3—grinding roller, 4—milling roller assembly, 5—plum frame, 6—feed inlet, 7—motor, 8—main shaft support mechanism, 9—belt Transmission pair, 10—reducer, 11—analyzer, 12—fan, 13—cyclone dust collector, 14—powder outlet, 15—body, 16—blade, 17—machine base, 18—anchor bolt, 19 - Concrete foundation.

Detailed ways

The structure and working principle of the planetary rolling sand mill of the present invention will be further described below in conjunction with the accompanying drawings.

A specific structure of the planetary rolling sand making mill is shown in Figure 1, including a body 15, a machine base 17, a sieve plate 1 as a discharge channel for finished sand, a powder collection mechanism, a large roller ring 2, a rolling Crushing mechanism, main shaft supporting mechanism 8, transmission mechanism, the motor 7 that is connected with transmission mechanism power input end.

The body 15 is a cylinder with a top cover on its upper end, a feed port 6 on its side wall, and an annulus connected to the large roller ring 2 at its lower end; The inner side of the annulus is provided with a groove for inserting the sieve plate 1, and its lower end has an outer edge connected with the concrete foundation; There are a number of circular sand passing holes of different sizes in the circular area matched with the big roller ring 2, and the sand passing holes are matched with the particle gradation of construction sand; , the analyzer 11 installed in the pipeline, the fan 12 behind the analyzer 11 and the cyclone dust collector 13, the bottom of the cyclone dust collector is the powder outlet 14; the big roller ring 2 is a circular ring made of wear-resistant cast iron The crushing and crushing mechanism includes a plum blossom frame 5, three sets of grinding roller assemblies 4, grinding rollers 3 and spatulas 16 matching the number of grinding roller assemblies, and the jackets of each grinding roller assembly 4 are separated from the plum blossom frame 5 by 120 degrees. Hinged, the grinding roller 3 is fixedly connected to the rotating shaft in the grinding roller assembly 4, the knife handle of the blade 16 is fixedly connected to the plum blossom frame 5, and the fixed connection position is between the two grinding roller assemblies, as shown in Figure 1 and Figure 3 ; Main shaft supporting mechanism 8 is mainly composed of bushing, main shaft and bearing, as shown in Figure 1;

The assembly method of the above components: the machine body 15, the large roller ring 2 and the machine base 17 are combined into one body through bolts, the machine base 17 is fixed on the concrete foundation 19 through the anchor bolts 18, and the crushing and crushing mechanism is located between the machine body 15 and the large roll ring. 2 In the cavity formed by the combination, the powder collecting device is installed at the edge of the top cover of the body, one end of the main shaft support mechanism 8 is fixed on the top cover of the body, and the other end is inserted into the inner cavity of the body, one end of the main shaft in the main shaft support mechanism 8 is connected to the The power output shaft of the reduction box 10 is connected, the other end is connected with the plum blossom frame 5 in the crushing and crushing mechanism, the motor 7 is connected with the power input shaft of the belt transmission pair 9, and the sieve plate 1 is inserted into the groove of the machine base 17 .

The working principle of the planetary rolling sand making mill is: the power of the motor 7 drives the main shaft and the plum blossom frame 5 to rotate through the belt drive pair 9 and the reduction box 10, and each grinding roller assembly 4 hinged on the plum blossom frame 5 is Revolving around the main shaft, under the action of centrifugal force, the grinding roller assembly 4 swings outward around the hinge point so that the grinding roller 3 contacts the inner wall of the large roller ring 2, and under the action of friction, the grinding roller 3 moves along the inner wall of the large roller ring 2 Roll the planets. The stones coming in from the feed port 6 are first accumulated on the sieve plate 1 at the bottom of the large roller ring 2, and then lifted up by the rotating blade 16 to the inner wall of the large roller ring 2, and then are clamped between the grinding roller 3 and the large roller The inner wall of the circle 2 is rolled, and the particles that become smaller after rolling fall back to the sieve plate 1, the particles smaller than the sieve plate holes fall through the sieve plate holes, and are discharged as finished sand, and the particles larger than the sieve plate holes will be discharged again. Roll again. The fine powder produced in the rolling process permeates the inside of the body 15, and under the suction of the blower fan 12, a negative pressure is formed inside the body 15, and the fine powder and the air inside the body 15 pass through the exhaust pipe on the top cover of the body 15 and Analyzer 11 is sent to cyclone 13 . When passing through the analyzer, the larger particles in the fine powder will be separated and fall into the body 15 again, and the fine powder particles that have passed through the analyzer 11 will settle down in the cyclone dust collector 13 and fall to the bottom as finished powder. The material is discharged from the powder outlet 14.

Claims (6)

1, a kind of planetary roller type sand-producing grinding mill comprises the body (15) that has charging aperture, powder collecting mechanism, big roller circle (2), rolled broken stone mechanism, main shaft supporting mechanism (8), transmission mechanism, the motor (7) that is connected with the transmission mechanism power intake,

Body (15) is a cylindrical shell, its upper end is provided with top cover, its lower end and big roller circle (2) combination, rolled broken stone mechanism is positioned at the cavity that body (15) and big roller circle (2) are combined to form, grinding roller in the rolled broken stone mechanism (3) forms planetary roller type with big roller circle (2) inwall and rolls pair, the powder collecting mechanism is installed on the top cover of body

It is characterized in that main shaft supporting mechanism (8) one ends are fixed on the top cover of body, other end insertion machine intracoelomic cavity, main shaft one end in the main shaft supporting mechanism (8) is connected with the clutch end of transmission mechanism, the other end is connected with plum blossom frame (5) in the rolled broken stone mechanism, and under the bottom of big roller circle (2) or bottom is provided with the sieve plate (1) as the finished sand tapping channel.

2, planetary roller type sand-producing grinding mill according to claim 1 is characterized in that the bottom of big roller circle (2) is connected with support (17), and sieve plate (1) is inserted on the support.

3, planetary roller type sand-producing grinding mill according to claim 1 is characterized in that sieve plate (1) directly is connected with big roller circle (2).

4,, it is characterized in that the sand hole of crossing that sieve plate (1) go up to be provided with differs in size, and be complementary with the grain composition of building sand according to claim 1 or 2 or 3 described planetary roller type sand-producing grinding mills.

5, according to claim 1 or 2 or 3 described planetary roller type sand-producing grinding mills, it is characterized in that rolled broken stone mechanism comprise plum blossom frame (5), at least two cover grinding roller assemblies (4), with the grinding roller (3) and the perching knife (16) of grinding roller assembly (4) quantity Matching, be separated by certain angle and plum blossom frame (5) of each grinding roller assembly (4) is hinged, rotating shaft in grinding roller (3) and the grinding roller assembly (4) is connected, the handle of a knife of perching knife (16) and plum blossom frame (5) are connected, and are connected the position between two adjacent grinding roller assemblies.

6, planetary roller type sand-producing grinding mill according to claim 4, it is characterized in that rolled broken stone mechanism comprise plum blossom frame (5), at least two cover grinding roller assemblies (4), with the grinding roller (3) and the perching knife (16) of grinding roller assembly (4) quantity Matching, be separated by certain angle and plum blossom frame (5) of each grinding roller assembly (4) is hinged, rotating shaft in grinding roller (3) and the grinding roller assembly (4) is connected, the handle of a knife of perching knife (16) and plum blossom frame (5) are connected, and are connected the position between two adjacent grinding roller assemblies.

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