JPH04102647U - Vertical crusher - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] In order to prevent breakage and damage accidents caused by collision between the rotary table and the grinding roller of a vertical crusher, a stopper 50 is provided to control the clearance between the two to an appropriate value. For crushers equipped with a [Structure] A hydraulic cylinder 100 is disposed at a position where the tip of a piston rod 100a comes into contact with the side surface of an arm 7 that supports a crushing roller so as to be able to swing around a horizontal axis, and the forward and backward movement position of the piston rod can be detected. A position sensor 120 is provided, or a hydraulic cylinder with a position detector is provided.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention uses a rotary table and a crushing roller to process limestone, blast furnace slag, This relates to a vertical crusher that crushes raw materials such as cement raw materials.

0002

[Conventional technology]

Grinding that finely grinds raw materials such as limestone, blast furnace slag, and cement raw materials into powder. As shown in Figure 2, one type of machine is a vertical type equipped with a rotary table and crushing rollers. The crusher 1 is widely used. This type of crusher is constructed under the cylindrical casing 1a. In the section, a disk-shaped rotating shaft is driven by a motor 2A with a reducer 2 and rotates at a low speed. cable 3A and the part that equally divides the outer periphery of its upper surface in the circumferential direction is pressed by hydraulic pressure etc. The grinding roller 4 is provided with a plurality of grinding rollers 4 that rotate as a result of rotation.

0003 The crushing roller 4 is loaded on the top surface of a column base 20 arranged at the bottom of the casing 1a. Hydraulic system It is connected to the piston rod 10 of the cylinder 9 and operates the hydraulic cylinder 9. By this, the crushing roller 4 is pressed onto the rotary table 3A to apply crushing pressure to the raw material. giving. 3B is a dabber provided on the outer periphery of the rotary table 3A to adjust the raw material bed pressure. 14 is an annular space passage for blowing up gas around the rotary table 3A, and 15 is a heat The wind blowing upper passage 13 is a rotating separator that classifies the raw material crushed by the blades 13A. , 16 is an outlet for taking out the product together with the gas, and 17 is a raw material input chute.

0004 In such a vertical crusher, a raw material input shoe is placed in the center of the rotary table 3A. The raw material supplied in Figure 17 is moved in the radial direction of the table by the rotation of the rotary table 3A. When sliding on the rotary table 3A due to centrifugal force, the rotary table 3A determines the rotation direction. The rotation speed of the rotary table 3A decreases due to the force of Do some slow rotation. The above two forces, namely radial and rotational forces are synthesized, and the raw materials draw a spiral trajectory on the rotary table 3A. Move to the outer periphery of 3A. A roller is pressed against this outer periphery and rotates. Then, the raw material with the spiral line is transferred between the crushing roller 4 and the rotary table 3A in the axial direction of the roller. It enters from a direction that makes an angle with the direction of the object and is bitten and crushed.

[0005] On the other hand, a duct is provided at the base of the casing 1a to supply gas such as air or hot air. The gas is guided to the outer peripheral surface of the rotary table 3A and the inner peripheral surface of the casing. The crushed fine powder becomes a gas by blowing up from the annular space passage 14 between the The blades of the separator 13 located at the top rise inside the casing 1a accompanied by the blades of the separator 13. 13A, and products with a predetermined particle size are discharged from the discharge port 16 along with the gas. and sent to the next process.

[0006] In addition, at the upper end of the column base 20, there is a strut with the tip of the push rod in contact with the side surface of the arm 7. The bumper 50 is installed horizontally so that even if raw material runs out during operation, it will not be connected to the rotary table 3A. Clearance S is provided to prevent the crushing roller 4 from being damaged by direct contact with metal. It is possible to hold it.

[0007] The details of the stopper 50 are as shown in FIG. A housing that includes a body 54 that is screwed into a push rod 56 with a spherical tip at a contact position. 52 is a ring spring (ring spring) 53 is interposed, and the push rod 56 is horizontally attached to the column base 20. A handle 58 for moving the push rod 56 forward and backward is attached to the other end. It is provided.

[0008]

[Problem that the idea aims to solve]

In the conventional vertical crusher as mentioned above, for example, changes in the raw material to be crushed or rotation As the wear of the cable liner and crushing roller progresses, change to an appropriate clearance S. However, in such cases, it is necessary to temporarily suspend operation and have workers on site do the work. I was forced to perform the complicated operation of turning the steering wheel. This results in loss time. This significantly hindered production efficiency.

[0009]

[Means to solve the problem]

In order to solve the above problems, the vertical crusher of the present invention has Multiple rotatable crushing rollers are placed on the top surface, and a roller that swings automatically around a horizontal axis is installed. a hydraulic series that presses the crushing roller onto the rotary table via an arm that is pivoted on the The raw material supplied onto the rotary table via the raw material input chute is pulverized. By applying a predetermined crushing pressure to the roller, the powder is separated between the top surface of the rotary table and the circumferential surface of the crushing roller. In a vertical crusher, the tip of the piston rod touches the side of the arm. A hydraulic cylinder is installed at a position where the piston rod moves forward and backward. A configuration equipped with a position sensor or a hydraulic cylinder with a position detector. That is.

0010

[Effect]

The stopper of the vertical crusher in this invention is replaced with the mechanical stopper shown in Figure 3. , it uses a stopper using a hydraulic cylinder and can detect the forward and backward movement of the piston rod. Either a position sensor is installed, or a hydraulic cylinder with a position sensor is used. Therefore, by moving the piston rod forward and backward using hydraulic operation, the piston rod can be automatically operated by remote control. Clearance S can be easily changed.

[0011]

【Example】

Hereinafter, embodiments of the present invention will be described based on the drawings. Figure 1 shows an example of the present invention. FIG. 1 is an enlarged vertical sectional view of the main part of the stopper.

0012 In the figure, 7 is an arm and 20 is a column base, both of which are based on the conventional technology shown in Figure 2. Exactly as described. A stopper seat 7a is provided on the lower side surface of the arm 7. Opposed to this is a hard rubber screw screwed onto the tip of the piston rod 100a. A hydraulic cylinder 100 is installed horizontally on the column base 20 so that the push rod 100b comes into contact with it. The flange 100C is passed through the through hole and bolted and fixed via the flange 100C. So Then, on the back of the piston 100d, a magnetic scale 110 connects the hydraulic cylinder 100. The position sensor 120 detects the forward and backward movement position of the piston rod 100a. It is now detectable. 130 is a protective cover. More than hydraulic cylinder Alternatively, a hydraulic cylinder with a position detector may be used instead of a position sensor. stomach.

[0013] The stopper of the present invention is constructed as described above, and the clearance S can be changed. In this case, a command is issued to a hydraulic unit (not shown) that is directly connected to the hydraulic cylinder. By operating this, you can move the stopper to the required position and apply pressure at the specified position. Lock the oil.

[0014]

[Effect of the idea]

As explained above, the stopper in the vertical crusher of the present invention is a hydraulic cylinder. The rotating table can be easily and automatically controlled by remote control. The clearance between the roller and the crushing roller can be changed arbitrarily, making maintenance easier. will improve.

[Brief explanation of drawings]

FIG. 1 is an enlarged longitudinal cross-sectional view of a main part showing an embodiment of a stopper for a vertical crusher according to the present invention.

FIG. 2 is an overall vertical sectional view showing a conventional vertical crusher.

FIG. 3 is an enlarged vertical cross-sectional view of a main part showing an example of a stopper of a conventional vertical crusher.

[Explanation of symbols]

1 Vertical crusher 3A rotary table 4 Grinding roller 7 Arm 7a Stopper catch 20 Pillar base 50 Stopper 100 Hydraulic cylinder 110 Magnetic scale 120 position sensor 130 Protective cover

Claims (1)

[Scope of utility model registration request] [Claim Top 1] A plurality of rotatable crushing rollers are disposed on the upper surface of the outer periphery of a rotary table, and the crushing rollers are pressed against the rotary table via an arm that is swingably supported around a horizontal axis. A vertical crusher is equipped with a hydraulic cylinder and applies a predetermined crushing pressure to the crushing roller to crush the raw material supplied onto the rotary table via the raw material input chute between the top surface of the rotary table and the circumferential surface of the crushing roller. A hydraulic cylinder is disposed at a position where the tip of the piston rod comes into contact with the side surface of the arm, and a position sensor capable of detecting the forward and backward movement position of the piston rod is provided, or
A vertical crusher equipped with a hydraulic cylinder with a position detector.