CN209866248U - Cutter for double-shaft crusher - Google Patents

Abstract

The utility model relates to a cutter for biax breaker, including horizontal parallel arrangement's first main shaft and second main shaft, install a plurality of blade discs and install the spacer sleeve between adjacent blade disc on first main shaft and the second main shaft respectively, the crisscross setting of blade disc on first main shaft and the second main shaft evenly is provided with a plurality of sword teeth on the edge of blade disc, and the sword tooth colludes the dissection including the acute angle portion, R bight and the circular arc that connect gradually, and the acute angle portion and the circular arc of adjacent sword tooth collude the dissection and are connected. The utility model discloses a sword tooth adopts triangle-shaped sharp tooth to chop the blanking, has reduced the radial thrust of main shaft, and the circular arc colludes the dissection and once can only get into a round steel and cut, has alleviateed the impact force to equipment, has improved the life of motor and speed reducer.

Description

Cutter for double-shaft crusher

Technical Field

The utility model relates to a cutter, concretely relates to cutter for biax breaker.

Background

Most melting furnaces of foundries are frequency conversion electric furnaces, and the size of processing raw materials is not more than ten centimeters due to the limitation of a feeding hole of the high-frequency electric furnace and the technological requirement of continuous casting, so heavy round steel balls need to be shredded and cut off. The existing heavy shredding cutter has good effect on the aspect of horizontal feeding and cutting, the raw materials are squeezed off by an arc surface on a cutter disc, but when the raw materials vertically enter between two main shafts, the resistance of the round steel to the radial generation of the main shafts is twenty times of the horizontal cutting resistance by rolling and cutting through an arc surface, the radial thrust of the main shafts is increased, the main shafts are often blocked, the diameter of the thickened main shafts is generally adopted in the existing solution, or the models of speed reducers are increased, the output torque is increased, but the main shafts are still blocked when a large amount of raw materials vertically enter between the main shafts, and the service life of the cutter is short.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cutter for biax breaker, crushing effect is good, has improved the life of cutter.

In order to solve the technical problem, the utility model provides a following technical scheme:

cutter for biax breaker, its characterized in that: first main shaft and second main shaft including horizontal parallel installation, install a plurality of blade discs and be located the spacer between the adjacent blade disc on first main shaft and the second main shaft respectively, the crisscross setting of the epaxial blade disc of first main shaft and second, evenly be provided with a plurality of sword teeth on the edge of blade disc, the sword tooth colludes the dissection including acute angle portion, R bight and the circular arc that connects gradually, and the acute angle portion and the circular arc of adjacent sword tooth collude the dissection and are connected.

As a further improvement, the rotation direction of the first main shaft and the second main shaft is relative rotation, and the cutter teeth spiral arrangement of the cutter head on the first main shaft and the second main shaft.

As a further improvement of the utility model, the radius of the arc hooking and cutting section is matched with the radius of the round steel to be processed.

The utility model discloses following beneficial effect has:

1. the utility model discloses a sword tooth adopts triangle-shaped sharp tooth to chop the blanking, has reduced the radial thrust of main shaft to solved the material and rolled under producing the damage to each part to radial thrust and have under the circle arc face;

2. the utility model discloses the blade disc design is the ration feed, and the circular arc colludes the dissection and once can only get into a round steel and cut, and unnecessary round steel is along with R angle discharge gets into next circular arc colludes the dissection and waits to cut off next time, prevents between two main shafts that the card is dead, has alleviateed the impact force to equipment, has improved the life of motor and speed reducer.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1, cutter for biax breaker, including the tool box, including horizontal parallel installation's first main shaft 4 and second main shaft 3 in the tool box, install a plurality of blade discs 1 and be located spacer 2 between the adjacent blade disc 1 on first main shaft 4 and the second main shaft 3 respectively, blade disc 1 on first main shaft 4 and the second main shaft 3 sets up in the past, evenly be provided with a plurality of sword teeth on the edge of blade disc 1, the sword tooth sets up along the axis spiral of first main shaft 4 and second main shaft 3. The knife teeth comprise acute angle parts 1-1, R angle parts 1-2 and arc hooking and cutting sections 1-3 which are sequentially connected, and the acute angle parts 1-1 of adjacent knife teeth are connected with the arc hooking and cutting sections 1-3.

The arc hooking and cutting section 1-3 is used for cutting off round steel transversely entering between the first main shaft 4 and the second main shaft 3, and the acute angle part 1-1 is used for cutting off round steel vertically entering between the first main shaft 4 and the second main shaft 3. Further, the radius of the circular arc hooking and cutting section 1-3 is matched with the radius of the round steel to be processed, the single cutting and limiting of the round steel is achieved, when a plurality of round steel fall between the cutter discs 1 of the first main shaft 4 and the second main shaft 3, the cutter discs 1 of the first main shaft 4 and the second main shaft 3 rotate relatively, the circular arc hooking and cutting section 1-3 hooks and cuts one round steel at a time, and the redundant round steel automatically returns through the R angle 1-2 to enter the next circular arc hooking and cutting section 1-3.

In this embodiment, the first spindle 4 and the second spindle 3 are respectively connected to a driving device, and the first spindle 4 and the second spindle 3 rotate in a relative direction.

The using process of the embodiment is as follows:

the cutter head 1 of the embodiment is processed in a transverse-cutting and vertical-cutting mode, when round steel to be cut transversely enters a position between a first main shaft 4 and a second main shaft 3, the first main shaft 4 and the second main shaft 3 rotate relatively, the round steel enters an arc hooking section 1-3 and is transversely cut when the round steel reaches an intersection point of the first main shaft 4 and the second main shaft 3, the redundant round steel automatically returns through an R angle 1-2, and enters the next arc hooking section 1-3 and is transversely cut; when the round steel to be cut vertically enters between the first main shaft 4 and the second main shaft 3, the first main shaft 4 and the second main shaft 3 rotate relatively, and the round steel is cut off between the acute angle part 1-1 on the cutter head 1 and the spacer sleeve 2. In the embodiment, the R angle 1-2 part can realize automatic material returning, and the phenomenon that a plurality of round steel enter the arc hooking and cutting section 1-3 and then are clamped between the first main shaft 4 and the second main shaft 3 is avoided.

The cutter teeth adopt triangular sharp tooth points to cut off blanking, the radial thrust of the main shaft is reduced, the acute angle part 1-1 is used for cutting off round steel, and the round steel is automatically cut off when the round steel enters two thirds of the depth of the round steel under the action of extrusion force. Thereby thoroughly solve the material and produce the damage that comes to each part to radial thrust with the circle lone face roll down and destroy.

Compared with the rolling extrusion cutting mode, the thrust of the embodiment on the radial direction of the main shaft is reduced by about 10 to 15 times, the rolling and the cutting are only a straight line difference, and the two different discussions are mechanically. Rolling is the area-wise processing of the material, such as with a steel-binding machine, and chopping is the cutting-tool-wise processing of the material, such as with a bending or shearing machine. When the same material is processed and cut off, the kinetic energy coefficients of the two processing modes are different by more than twenty times, and the service life of the matching accessories of the whole equipment is prolonged by more than sixty percent after the improvement.

In the embodiment, the cutter head 1 is designed to feed materials quantitatively, the circular arc hooking and cutting section 1-3 can only enter one round steel for cutting once, redundant round steel enters the next circular arc hooking and cutting section 1-3 along with the discharge of the R angle 1-2 to be cut next time, and one or more round steels enter the deeper notch than before and are cut simultaneously, so that the impact force on equipment is greatly reduced, and the service lives of the motor and the speed reducer are prolonged.

In the present embodiment, the cutter for the twin-shaft crusher is used for cutting round steel with a diameter of 20 or less in a stepwise manner, and two billets are cut at a time with a length of 80/100, but the cutter head 1 may be separately prepared by changing the size of the cutter teeth according to the user's request.

Claims (3)

1. Cutter for biax breaker, its characterized in that: including horizontal parallel installation's first main shaft (4) and second main shaft (3), install a plurality of blade discs (1) and install spacer (2) between adjacent blade disc (1) on first main shaft (4) and second main shaft (3) respectively, blade disc (1) on first main shaft (4) and second main shaft (3) crisscross the setting, evenly be provided with a plurality of sword teeth on the edge of blade disc (1), the sword tooth colludes dissection (1-3) including acute angle portion (1-1), R angle (1-2) portion and the circular arc that connects gradually, and acute angle portion (1-1) and the circular arc of adjacent sword tooth collude dissection (1-3) and are connected.

2. The cutter for a biaxial crusher as defined in claim 1, wherein: the rotation directions of the first main shaft (4) and the second main shaft (3) are relatively rotated, and cutter teeth of the cutter head (1) on the first main shaft (4) and the second main shaft (3) are respectively arranged in a spiral mode.

3. The cutter for a biaxial crusher as defined in claim 1 or 2, wherein: the radius of the arc hooking and cutting section (1-3) is matched with the radius of the round steel to be processed.