CN110947468A

CN110947468A - A straight tooth crusher for high viscous materials

Info

Publication number: CN110947468A
Application number: CN202010061387.7A
Authority: CN
Inventors: 吴兴列; 马立周
Original assignee: Zhejiang Qianjiang Drying Equipment Co Ltd Wei; Yihai Kerry Jinlongyu Oils and Grains Industries Co Ltd
Current assignee: Zhejiang Qianjiang Drying Equipment Co Ltd Wei; Yihai Kerry Jinlongyu Oils and Grains Industries Co Ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-04-03

Abstract

The invention relates to a straight-tooth crusher for high-viscosity materials, which solves the problems that the traditional single-shaft crusher has large tooth surfaces and low rotational speed, and the high-viscosity materials are easily adhered and accumulated, causing clogging. The device comprises a frame, the frame is provided with a crushing cavity, and the crushing cavity is provided with a rotating shaft. It is characterized in that: the rotating shaft is provided with movable teeth, the side wall of the crushing cavity is provided with stationary teeth, and the movable teeth and the stationary teeth are arranged alternately. The movable teeth and the stationary teeth are both straight plate teeth, the movable teeth are arranged in multiple rows on the circumference of the rotating shaft, and each row of movable teeth is arranged on the surface of the rotating shaft along the axial direction. The straight plate structure of the movable tooth and the stationary tooth of the present invention reduces the strength to increase the rotational speed and the linear speed of the ejection, reduces the surface that can be adhered, and forms the vibration of the tooth body in a targeted manner to reduce the adhesion of the material. It is suitable for the crushing of materials with high viscosity and high humidity.

Description

Straight tooth crusher for high-viscosity materials

Technical Field

The invention relates to crushing equipment, in particular to a straight tooth crusher for high-viscosity materials.

Background

The crusher is a common machine in industry, and is used for crushing large materials into small materials, and some materials can meet the use requirement even by multistage crushing. Crushers generally crush material by shearing two sets of crushing teeth against each other. The traditional crusher comprises a single-shaft crusher and a double-shaft crusher of a double-roller type, wherein the single-shaft crusher is provided with a movable tooth on a rotating shaft, and a static tooth on the wall of a cavity; the double-shaft crusher is provided with moving teeth on two rotating shafts respectively. The existing crusher generally selects the fan-shaped tooth or the triangular tooth with small tooth tip and thick tooth root for ensuring the strength of the crushing tooth, the connection length of the tooth root with a rotating shaft and a cavity wall is large, and the connection length is gradually reduced towards the tooth tip. For example, in patent No. CN107999239A issued by the chinese patent office in 2018, 5, month and 8, entitled multifunctional single-shaft crusher, both the moving teeth on the rotating shaft and the stationary teeth on the chamber wall of the device are triangular teeth, and the moving teeth are arranged in an S-shape on the rotating shaft.

To traditional single-shaft crusher, when the broken material of needs is high viscosity material, like sheet frame filter-pressing material, fermentation material etc. because tooth root department length is big and the linear velocity is little, the viscidity material glues at the tooth root department easily and gathers and lead to material jam, bridging. The traditional crusher has wide tooth surface, heavy weight and low design rotating speed, aggravates the cohesion of materials, and can lead the materials to be quickly agglomerated → accumulated → formed into a rotary charging barrel → blocked because the shearing staggered area of the movable teeth and the static teeth is large even if the rotating speed is increased. Moreover, the crushing tooth of traditional breaker is S type or spiral arrangement in the pivot usually, improves the stationarity, when the pivot is high-speed to rotate, can produce axial driving force to the material, when the broken high viscosity material that is, can promote the material to gather to one side for cause the jam.

Disclosure of Invention

The invention aims to solve the problems that a crushing tooth of a traditional single-shaft crusher has a large tooth surface and a low rotating speed, and high-viscosity materials are easy to adhere and accumulate to cause blockage in crushing, and provides a high-viscosity material straight tooth crusher.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a high viscosity material straight-tooth crusher, includes the frame, is equipped with broken chamber in the frame, and broken intracavity is equipped with pivot, its characterized in that: be equipped with in the pivot and move the tooth, the lateral wall in broken chamber sets up quiet tooth, moves the crisscross setting of tooth and quiet tooth, it is straight board type tooth to move tooth and quiet tooth, it sets up the multiseriate at the pivot ring week to move the tooth, and each is listed as and moves the tooth and follow axial arrangement on the pivot surface. The breaker is the viscidity material when broken material, and the position that the material was gathered to the easiest is for moving the tooth root line department of tooth and quiet tooth, and here linear velocity is the lowest, has flank of tooth and axial plane, chamber wall to form the right angle moreover and supports, and traditional tooth that moves is fan-shaped or triangle-shaped usually, and the root length of tooth is big, changes and gathers the material. In this scheme, move the tooth and use radially as length, axial as thickness, hoop as the width, quiet tooth uses perpendicular to chamber wall direction as length, and the pivot axial is thickness to be width with the equal vertically direction of length and thickness. The movable teeth and the static teeth are uniformly arranged at equal intervals. The movable teeth and the static teeth of the device all adopt straight plate teeth, the tooth shapes are long strip shapes, the width from the tooth tip to the tooth root is consistent or only increased or reduced in small amplitude, the length of the tooth root line is small, and the accumulation is not easy. The movable teeth of the device are straight plates, the weight is small, the whole load of the rotating shaft is reduced, the device has the condition of high-speed rotation exceeding 500rpm/min, the rotating linear speed is improved, and materials can be thrown out. In the high-speed rotation process, because the tooth surface is small, the movable teeth and the static teeth generate vibration after being stressed in the shearing and staggering process, and the adhered materials can be shaken off. In the device, the moving teeth are axially arranged along the rotating shaft, so that the axial pushing effect of the traditional S-shaped or spirally arranged moving teeth on the material is avoided, and the material is prevented from accumulating to one side. The straight board type structure of the moving tooth and the static tooth of the device reduces the strength to improve the rotating speed and throw away the linear speed, reduces the surface capable of adhering, and the targeted shaking of the tooth body reduces the adhesion of materials.

Preferably, the inner wall of the crushing cavity, the surface of the rotating shaft, the surface of the moving tooth and the surface of the static tooth are respectively subjected to polishing treatment. The groove or the rough surface is avoided, the adhesion of materials is reduced, and the cleaning is convenient.

Preferably, the static teeth are arranged on the side surface of the inner wall of the crushing cavity in an inward protruding mode, and the height of the static teeth is not higher than that of the rotating shaft. The static teeth are arranged on the side wall of the lower box body on which the rotating shaft is erected and are slightly lower than the rotating shaft.

Preferably, the tooth tip of the movable tooth is a pointed end, a round end or a flat end, the connecting line of the tooth tip of the movable tooth and the midpoint of the tooth root is taken as the center line of the movable tooth, the included angle between each side tooth surface of the movable tooth and the center line of the movable tooth is-3 degrees, the tooth tip of the static tooth is a pointed end, a round end or a flat end, the connecting line of the tooth tip of the static tooth and the midpoint of the tooth root is taken as the center line of the static tooth, and the included angle between each side tooth surface of the static tooth and the center line. The movable teeth and the static teeth are strip-shaped straight plate-shaped teeth, and the width from the tooth tips to the tooth roots is kept consistent or basically consistent and only changes in a small amplitude.

Preferably, the width of the movable tooth is consistent from the tooth tip to the root, and the width of the fixed tooth is consistent from the tooth tip to the root.

Preferably, the rows of moving teeth are uniformly arranged in the circumferential direction of the rotating shaft.

Preferably, a discharge port is arranged below the crushing cavity, and the discharge port is in a straight cylinder shape with the same width from top to bottom.

As another preferred scheme, a discharge port is arranged below the crushing cavity, the discharge port is open and outwards unfolded, and the unfolding direction of the discharge port is in the radial direction of the rotating shaft.

Preferably, the tooth root of the movable tooth and the surface of the rotating shaft are welded and fixed, and the tooth root of the fixed tooth and the inner wall of the crushing cavity are welded and fixed.

Preferably, the rack is provided with an upper box body and a lower box body, the crushing cavity is defined by the upper box body and the lower box body together, the upper part of the upper box body is provided with a feeding hole, the lower part of the lower box body is provided with a discharging hole, the butt joint of the upper box body and the lower box body is connected in an opening-closing mode through a connecting flange, the rotating shaft is arranged on the interface of the upper box body and the lower box body, two ends of the rotating shaft are erected through bearings, the bearings are arranged on the outer sides of the upper box body and the lower box body, and the static teeth are arranged. The top surface at box under is erect in the pivot, and quiet tooth sets up the lateral wall at box top under, goes up the closure structure that the box can adopt to open, makes things convenient for regularly to clear up.

Preferably, the frame is provided with a motor for driving the rotating shaft to rotate.

Preferably, the working rotating speed of the rotating shaft is not less than 500 rpm/min.

The straight plate type structure of the moving teeth and the static teeth reduces the strength to improve the rotating speed and the throwing linear speed, reduces the adherable surface, and purposefully forms the tooth body shake to reduce the material adhesion.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is a side view schematic of the present invention.

Fig. 3 is a schematic structural view of the present invention with the upper case removed from the top view.

Fig. 4 is a schematic view of the structure of the rotating shaft of the present invention.

Fig. 5 is a schematic diagram of the distribution structure of the moving teeth on the rotating shaft of the present invention.

In the figure: 1. the device comprises a rack, 2, a motor, 3, a rotating shaft, 4, a bearing, 5, upper and lower box body connecting flanges, 6, an upper box body, 7, moving teeth, 8, static teeth, 9, a lower box body, 10, a crushing cavity, 11, a feeding port, 12 and a discharging port.

Detailed Description

The invention is further illustrated by the following specific examples in conjunction with the accompanying drawings.

Example (b): a straight tooth crusher for high viscosity material is shown in figures 1, 2 and 3. The device is used for crushing high-viscosity and high-humidity materials, and is not suitable for crushing hard materials. This device includes frame 1, sets up box 6 and lower box 9 in the frame 1, and box flange 5 is connected about last box 6 and the 9 butt joints of lower box adopt, and upper and lower box flange 5 can be opened the convenience and overturn the convenient clearance of going up the box. The upper part of the upper box body 6 is provided with a feeding hole 11, the lower part of the lower box body 9 is provided with a discharging hole 12, and a crushing cavity 10 is formed at the butt joint of the upper box body and the lower box body. The inner walls of the upper case 6 and the lower case 9 and the internal parts are mirror-polished. A rotating shaft 3 is arranged in the crushing cavity 10, two ends of the rotating shaft 3 are erected on the rack 1 through bearings 4, and the bearings 4 are arranged on the outer sides of the upper box body 6 and the lower box body 9. The frame is provided with a motor 2, the motor drives a rotating shaft 3 to rotate through belt transmission or shaft coupling transmission and other modes, and the working rotating speed of the rotating shaft is more than 500 rpm/min.

As shown in fig. 1 and 2, the rotating shaft 3 is disposed at the interface between the upper case and the lower case and is sandwiched by the upper case and the lower case. As shown in fig. 3, the rotating shaft 3 is provided with a moving tooth 7, the two sides of the inner wall of the top of the lower box 9 are symmetrically provided with static teeth 8, the moving tooth 7 and the static teeth 8 are arranged in a staggered manner, the moving tooth and the static teeth are straight plate-shaped teeth, the tooth tip of the moving tooth is a flat head, the width of the tooth tip is consistent or basically consistent from bottom to root, and the width of the tooth tip is consistent or basically consistent from bottom to top and bottom to root. The tooth root of the movable tooth 7 is welded and fixed with the surface of the rotating shaft 3, and the tooth root of the fixed tooth 8 is welded and fixed with the inner wall of the top of the lower box body 9. As shown in fig. 4 and 5, the movable teeth 7 are uniformly arranged in multiple rows around the rotating shaft 3, and each row of movable teeth 7 is linearly arranged on the surface of the rotating shaft 3 along the axial direction. The static teeth 8 are horizontally arranged inwards on the side wall of the top of the lower box body 9. The discharge port 12 of the crushing chamber 10, i.e. the lower part of the lower box body, is open and is outwardly expanded, and the expansion direction of the discharge port 12 is radial to the rotating shaft 3.

The movable teeth on the rotating shaft are of a straight plate type, the weight is small, the material adhesion area is reduced, the overall load of the rotating shaft is reduced, the rotating shaft rotates at a high speed of more than 500rpm/min, the rotating linear speed is improved, and materials can be thrown out. In the high-speed rotation process, because the tooth surface is small, the movable teeth and the static teeth generate vibration after being stressed in the shearing and staggering process, and the adhered materials can be shaken off. In the device, the movable teeth are arranged in a straight line, so that the axial pushing effect of the traditional S-shaped or spirally arranged movable teeth on the material is avoided, and the material is prevented from accumulating to one side.

Claims

1. A straight-tooth crusher for high-viscosity materials, comprising a frame, the frame is provided with a crushing cavity, and the crushing cavity is provided with a rotating shaft, characterized in that: the rotating shaft is provided with moving teeth, and the side wall of the crushing cavity is provided with The stationary teeth, the movable teeth and the stationary teeth are staggered, the movable teeth and the stationary teeth are straight plate teeth, the movable teeth are arranged in multiple rows on the circumference of the rotating shaft, and each row of the movable teeth is arranged on the surface of the rotating shaft in the axial direction.

2 . The straight-tooth crusher for high-viscosity materials according to claim 1 , wherein the inner wall of the crushing cavity, the surface of the rotating shaft, the surface of the movable tooth and the surface of the stationary tooth are polished respectively. 3 .

3 . The straight-tooth crusher for high-viscosity materials according to claim 1 , wherein the stationary teeth are arranged inwardly on the side of the inner wall of the crushing cavity, and the height of the stationary teeth is not higher than the height of the rotating shaft. 4 .

4. A straight-tooth crusher for high-viscosity materials according to claim 1, 2 or 3, characterized in that: the tooth tips of the movable teeth are pointed, round or flat, and the tooth tips of the movable teeth and the teeth The line connecting the mid-points of the root is the center line of the moving tooth, the angle between the tooth surface of each side of the moving tooth and the center line of the moving tooth is -3 to 3°, and the tooth tips of the stationary tooth are pointed, round or flat. The line connecting the midpoint of the tip and the root is the midline of the stationary tooth, and the angle between the tooth surfaces on each side of the stationary tooth and the midline of the stationary tooth is -3 to 3°.

5 . The straight-tooth crusher for high-viscosity materials according to claim 4 , wherein the movable teeth have the same width from the tip of the tooth down to the root of the tooth, and the stationary teeth from the tip of the tooth to the bottom of the tooth have the same width. 6 . The width of the tooth root is the same everywhere.

6. The straight-tooth crusher for high-viscosity materials according to claim 1, 2 or 3, wherein each row of movable teeth is evenly arranged in the circumferential direction of the rotating shaft.

7. The straight-tooth crusher for high-viscosity materials according to claim 1, 2 or 3, characterized in that: a discharge port is provided below the crushing cavity, and the discharge port is a straight cylinder with equal width up and down, Or the discharge port is an open type that expands outward, and the direction of the discharge port is the radial direction of the rotating shaft.

8. The straight-tooth crusher for high-viscosity materials according to claim 1, 2 or 3, wherein an upper box body and a lower box body are arranged on the frame, and the crushing cavity is composed of the upper box body and the lower box body. The upper part of the upper case is provided with a feeding port, the lower part of the lower case is provided with a discharge port, and the connecting flanges are used for the connection between the upper case and the lower case, which can be opened and closed. The rotating shaft is arranged at the interface between the upper box and the lower box. Both ends of the rotating shaft are erected by bearings. The bearings are arranged on the outer sides of the upper box and the lower box, and the static teeth are arranged on the top of the inner wall of the lower box.

9 . The straight-tooth crusher for high-viscosity materials according to claim 1 , wherein the frame is provided with a motor that drives the rotating shaft to rotate. 10 .

10 . The straight-tooth crusher for high-viscosity materials according to claim 1 , 2 or 3 , wherein the working speed of the rotating shaft is not less than 500 rpm/min. 11 .