CN217093735U - Quick maintenance system of milling machine - Google Patents

Abstract

The utility model discloses a quick maintenance system of a flour mill, in an installation structure of an air return box and a base, two semicircular boxes of the air return box are arranged on the outer circumference of the base in a surrounding way; in the mounting structure of the host hood cylinder and the base, one corresponding end of two semicircular hood bodies of the host hood cylinder is hinged while the other corresponding end is connected through a locking mechanism I, and lower round openings of the two semicircular hood bodies surround the top of the base; in the connection structure of the grader and the main machine cover cylinder, the grader is arranged on a movable frame, the movable frame is arranged on a rack through a front-back or left-right moving mechanism, and a locking mechanism II for fixing the movable frame is arranged on the rack at the butt joint position of a lower cylinder opening of the grading cover cylinder and upper circular openings of two semicircular cover bodies. The utility model discloses can shorten the maintenance operation process greatly, reduce the down time of milling machine, improve production efficiency.

Description

Quick maintenance system of milling machine

Technical Field

The utility model relates to a grinding equipment specifically is a quick maintenance system of milling machine.

Background

The grinder is one of the most widely applied equipments in grinding equipment, in its grinder main structure, a main machine cover cylinder is mounted on a base, a classifier is mounted on the main machine cover cylinder, a return air box is mounted around the base, a grinding roller device is arranged in the main machine cover cylinder and mounted on a main machine main shaft through a plum blossom frame, a grinding roller in the grinding roller device rotates and rolls on a grinding ring of the base while revolving, materials are ground in a grinding area formed between the grinding roller and the contact surface of the grinding ring, qualified fine powder is collected by the classifier, and unqualified coarse powder falls back and is continuously ground by the grinding roller.

The key maintenance items of the mill main machine are maintenance of the grinding roller device and other parts in the main machine cover cylinder, replacement of the grinding ring and replacement of the air duct guard plate in the base.

The main machine of the mill is overhauled according to the traditional scheme, and maintenance personnel need to enter a narrow main machine cover cylinder through an overhaul observation door to maintain the grinding roller device and other parts; the grinding ring can be replaced only by dismantling the classifier, the main machine cover cylinder, the grinding roller device and other parts; the air duct guard plate in the base can be replaced only by dismantling the air return box.

Therefore, the mill main machine is complex and tedious to overhaul, the labor intensity is high, the downtime of the milling main machine is long, and the production efficiency of the milling machine is indirectly influenced.

SUMMERY OF THE UTILITY MODEL

For the maintenance of making things convenient for the mill host computer, the utility model provides a quick maintenance system of milling machine.

Can solve above-mentioned technical problem's quick maintenance system of milling machine, its technical scheme includes return air case and base mounting structure, a host computer cover section of thick bamboo and base mounting structure and grader and a host computer cover section of thick bamboo connection structure, the institute difference is:

1. in the air return box and base mounting structure, the air return box comprises a front semi-circular box body, a rear semi-circular box body, a left semi-circular box body and a right semi-circular box body, and the two semi-circular box bodies are arranged on the outer circumference of the base in a surrounding mode.

2. In the installation structure of the host hood barrel and the base, the host hood barrel comprises a front semicircular hood body, a rear semicircular hood body, a left semicircular hood body and a right semicircular hood body, one corresponding end of each semicircular hood body is hinged, the other corresponding end of each semicircular hood body is connected through a locking mechanism I, and lower round openings of the two semicircular hood bodies surround the top of the base.

3. In the connection structure of the grader and the main machine cover cylinder, the grader is arranged on a movable frame through a grading cover cylinder, the movable frame is arranged on a rack through a front-back or left-right moving mechanism, the lower cylinder opening of the grading cover cylinder is in butt joint with the upper circular openings of the two semicircular cover bodies, and a locking mechanism II for fixing the movable frame and the grader is arranged on the rack.

Further, the moving mechanism comprises a roller pair and a guide rail pair which are matched in a rolling manner, the roller pair comprises a left roller and a right roller which are arranged at the front position and the rear position of the bottom of the moving frame or a front roller and a rear roller which are arranged at the left position and the right position, and the guide rail pair comprises a left guide rail, a right guide rail or a front guide rail and a rear guide rail which are arranged at the top of the rack.

Conventionally, the locking mechanisms all adopt hook-and-loop type locking pieces.

The utility model has the advantages that:

1. adopt the utility model discloses the quick maintenance system of milling machine overhauls in the host computer cover section of thick bamboo and maintains the operation and provide bigger space. When the grinding roller device is maintained, the grinding roller device and other parts in the main machine cover cylinder can be in an open state by opening the semicircular cover body, so that maintenance personnel can conveniently maintain the grinding roller, the bearing and other parts of the grinding roller device.

2. The utility model discloses easily change the grinding ring, two semicircle cover bodies are demolishd in the separation for grinding roller device and grinding ring expose completely, put aside after the grader, can easily accomplish the change of grinding ring with the help of portal crane or driving.

3. The utility model discloses a separable two semicircle box structures of the return-air case of unpacing apart for the inner structure of base exposes completely, and easily maintenance personal changes the wind channel backplate in the base.

4. Adopt the utility model discloses the structure can shorten the maintenance operation process greatly, reduces the down time of milling machine, improves production efficiency.

Drawings

Fig. 1 is an isometric view of an embodiment of the present invention.

Fig. 2 is a front view of the embodiment of fig. 1.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a side view of fig. 2.

FIG. 5 is an isometric view of the return air box of the embodiment of FIG. 1.

And (3) identifying the figure number: 1. an air return box; 1-1, a semicircular box body; 1-2, an air inlet; 1-3, bolt assembly; 2. a base; 3. a host hood; 3-1, a semicircular cover body; 4. a hinge mechanism; 5. a locking mechanism I; 6. a classifier; 6-1, grading cover cylinders; 7. a movable frame; 8. a frame; 9. a locking mechanism II; 10. a roller pair; 11. a guide rail pair; 12. a plum blossom frame; 13. a grinding roller assembly; 14. and a locking mechanism III.

Detailed Description

The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.

The utility model discloses quick maintenance system of milling machine, including base 2, return-air box 1, host computer cover cylinder 3 and grader 6, base 2 is installed on the base, return-air box 1 encloses to adorn on the outer circumference of 2 side directions of base, host computer cover cylinder 3 is installed on base 2, grader 6 is installed on host computer cover cylinder 3, is equipped with in host computer cover cylinder 3 and installs in main epaxial grinding roller assembly 13 through plum blossom frame 12, the main shaft is installed in the seat bottom of the hole portion central authorities of base 2 through lower bearing mechanism, and the grinding ring is installed to the seat orifice of base 2, the grinding ring forms the district of milling with the grinding roller of grinding roller assembly 13 last circumference equipartition, as shown in figure 1, figure 2, figure 3, figure 4.

The air return box 1 comprises a left semicircular box body 1-1 and a right semicircular box body 1-1, wherein a tangential air inlet 1-2 is formed in one semicircular box body 1-1, the left semicircular box body 1-1 and the right semicircular box body 1-1 are arranged on the outer circumference of the base 2 in a surrounding mode and are in butt joint, and the left semicircular box body 1-1 and the right semicircular box body 1-1 are connected into a whole at the butt joint end face through a bolt assembly 1-3, as shown in a figure 1, a figure 2, a figure 3, a figure 4 and a figure 5.

The main engine cover cylinder 3 comprises a left semicircular cover body 3-1 and a right semicircular cover body 3-1, the rear corresponding ends of the two semicircular cover bodies 3-1 are connected through a hinge mechanism 4, the front corresponding ends of the two semicircular cover bodies 3-1 are fixedly connected through a locking mechanism I5, the lower circular openings of the two semicircular cover bodies 3-1 in a locking state surround an arch ring at the top of the base 2 and are locked by using a hoop, a surrounding gap is sealed through a sealing ring, and sealing strips are arranged between the front corresponding ends and the rear corresponding ends of the two semicircular cover bodies 3-1, as shown in figures 1, 2, 3 and 4.

The grader 6 is erected above the main machine cover cylinder 3, specifically, the grader 6 is installed in a moving frame 7 through a lower grading cover cylinder 6-1, the moving frame 7 is installed on a machine frame 8 through a moving mechanism, the moving mechanism comprises a roller pair 10 in rolling fit on a guide rail pair 11, the guide rail pair 11 comprises a left guide rail and a right guide rail (front and back directions) installed on the top of the machine frame 8, the roller pair 10 comprises a left roller set and a right roller set aligned with the left guide rail and the right guide rail, each roller set comprises a front roller and a back roller installed on corresponding positions at the bottom of the moving frame 7 through a wheel carrier, the machine frame 8 is a steel frame constructed in the front and back directions, and the base 2, the air return box 1 and the main machine cover cylinder 3 are arranged in a frame body in the front of the machine frame 8; a moving frame 7 driven by power drives a grader 6 to enter a working position butted with a host hood cylinder 3 forwards, the moving frame 7 drives the grader 6 to retreat from the working position to an overhaul position backwards, a locking mechanism II 9 (hook type locking piece) for fixing the position of a grading hood cylinder 6-1 is arranged between a frame 8 of the working position and the overhaul position and the moving frame 7, a lower cylinder opening of the grading hood cylinder 6-1 is butted with upper circular openings of two semi-circular hood bodies 3-1 in a surrounding state in the working position, and a locking mechanism III 14 (hook type locking piece) for axially fixing the grading hood cylinder 6-1 and the two semi-circular hood bodies 3-1 is arranged between the butted positions, as shown in figures 1, 2, 3 and 4.

The utility model discloses an operation mode does:

1. when the grinding roller device needs to be maintained and overhauled, the hoop, the locking mechanism I5 and the locking mechanism III 14 are released when the main machine of the grinding machine is in a shutdown state, and the left semicircular cover body 3-1 can be opened to directly inspect and maintain the grinding roller device.

2. When the grinding ring needs to be replaced, the hoop 6, the locking mechanism I5, the locking mechanism III 14 and the locking mechanism II 9 are removed when the main machine of the grinding machine is in a shutdown state, the left and right semicircular cover bodies 3-1 are removed, the grader 6 is withdrawn from the working position to the maintenance position through the moving frame 7, and the grinding ring is lifted by using a hoist crane of a portal frame or a workshop crane, so that the replacement of the grinding ring can be completed.

3. When the air duct guard plate in the base 2 needs to be replaced, the bolt assemblies 1-3 are unscrewed when the main machine of the mill is in a shutdown state, the front and rear semicircular box bodies 1-1 are detached from the base 2, and then the air duct guard plate can be replaced at the side part of the base 2.

Claims (3)

1. Quick maintenance system of milling machine, including return air case and base mounting structure, a host computer cover section of thick bamboo and base mounting structure and grader and a host computer cover section of thick bamboo connection structure, its characterized in that:

in the air return box and base mounting structure, the air return box (1) comprises a front semicircular box body (1), a rear semicircular box body (1), a left semicircular box body and a right semicircular box body (1-1), and the two semicircular box bodies (1-1) are arranged on the outer circumference of the base (2) in a surrounding manner;

in the installation structure of the host hood cylinder and the base, the host hood cylinder (3) comprises a front semicircular hood body, a rear semicircular hood body or a left semicircular hood body and a right semicircular hood body (3-1), one corresponding end of each of the two semicircular hood bodies (3-1) is hinged, the other corresponding end of each of the two semicircular hood bodies is connected through a locking mechanism I (5), and the lower circular openings of the two semicircular hood bodies (3-1) surround the top of the base (2);

in the connection structure of the grader and the main machine cover cylinder, the grader (6) is installed on a movable frame (7) through a grading cover cylinder (6-1), the movable frame (7) is installed on a rack (8) through a front-back or left-right moving mechanism, a lower cylinder opening of the grading cover cylinder (6-1) is in butt joint with upper circular openings of two semicircular cover bodies (3-1), and a locking mechanism II (9) for fixing the movable frame (7) is arranged on the rack (8).

2. A mill quick maintenance system according to claim 1, characterized in that: the moving mechanism comprises a roller pair (10) and a guide rail pair (11) which are matched in a rolling manner, the roller pair (10) comprises a left roller and a right roller which are arranged at the front position and the rear position of the bottom of the moving frame (7) or a front roller and a rear roller which are arranged at the left position and the right position, and the guide rail pair (11) comprises a left guide rail, a right guide rail or a front guide rail and a rear guide rail which are arranged at the top of the rack (8).

3. A mill quick maintenance system according to claim 1, characterized in that: the locking mechanism is a hook-buckle type locking piece.

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