WO2020038281A1 - Double-plate flip-impact crusher - Google Patents

Abstract

A double-plate flip-impact crusher, comprising a rack assembly and a rotor assembly. The rotor assembly comprises a rotor (2), flat hammers (3), and backs (6). Two flat hammers (3) are provided and have one-to-one correspondence to the backs (6). The backs (6) are fixed on the periphery of the rotor (2). One side surface of each flat hammer (3) abuts against the corresponding back (6) and is fixedly connected to the back (6) by means of a fixing member, and the other side surface of the flat hammer (3) is an impact surface for impacting a material, the orientation of the impact surface being consistent with the rotation direction of the rotor (2) during working. The crusher has the advantages that the two flat hammers have large effective impact surfaces and implement high crushing efficiency.

Description

Double-plate flipping crusher Technical field

The invention belongs to the field of crushing technology, and particularly relates to a double-plate tumble crusher.

Background technique

The impact crusher is a medium-fine crushing device, which is a model that has a shaping function for the particle size of the crushed product; that is, the crushed product particles are close to round particles and the rhomboids are removed. As far as its comprehensive performance of "crushing and shaping function" is concerned, it is far superior to cone crushers or jaw crushers with similar crushing functions.

The traditional plate hammer installation method is a wedge installation method, such as an impact crusher proposed by application number CN201010271895.4. The plate hammer is installed on the rotor frame through the wedge block and the plate support block, and a depth is set on the rotor frame. A deeper slot for inserting the hammer. The hammer is inserted in the groove. The wedge block and the hammer support block are located in the slot and are located on both sides of the hammer. It can be seen that the hammer is exposed. There are few parts for hitting the material, basically most of them are inserted into the slot, mainly hitting the material through the part near the top.

At the same time, because two adjacent hammers pass through the same position for a short time, the material often has no time to hit the sides of the hammer, and can only be taken away after frictional contact with the top of the hammer, forming a "grinding" The effect is not side impact, but the crushing effect of "grinding" is far worse than side impact, and the top of the hammer is subjected to long-term concentrated grinding, which causes severe wear and short service life.

Summary of the Invention

An object of the present invention is to provide a double-plate hammer having a large impact surface and a high crushing efficiency, and a double-plate hammer having an effective large impact surface and aforesaid defects of the existing impact crusher.

The object of the present invention can be achieved by the following technical solutions:

A double-plate tumble crusher includes a frame assembly and a rotor assembly, which is characterized in that the rotor assembly includes a rotor, a plate hammer disposed on the rotor, and a backrest. One corresponding, the backrest is fixed on the outer periphery of the rotor, and a recessed positioning groove corresponding to the hammer is provided on the outer periphery of the rotor. The bottom of the hammer is provided in the positioning groove. One side of the hammer rests on the corresponding backrest and passes through a The fixing device is fixedly connected to the backrest. The other side of the plate hammer is an impact surface for impacting the material. The direction of the impact surface is consistent with the rotation direction of the rotor when it is working.

In the above-mentioned double-plate tumbler crusher, the impact surfaces of the two-plate hammers are located on the same plane, the plane is the first plane, the axis line of the rotor is located on the first plane, and the two-plate hammers are located on the first plane. One side of the plane.

In the above-mentioned double-plate flip crusher, the impact surfaces of the two-plate hammers are arranged in parallel, and the surface parallel to the two impact surfaces is a second plane, and the axis of the rotor is located at the second on flat surface.

In the above-mentioned double-plate tumble crusher, the plate hammer is located on the second plane.

In the above-mentioned double-plate flip crusher, the plate hammer is spaced from the second plane.

In the above-mentioned double-plate tumble crusher, the fixing device corresponds to the plate hammer one by one, and the fixing device is a plurality of bolts, and one end of the bolt passes through the back and is screw-connected with the plate hammer.

In the above-mentioned double-plate tumbler crusher, a plurality of bolts are provided, and the plurality of bolts are arranged at intervals along the extending direction of the rotor axis line.

In the above-mentioned double-plate flip crusher, both ends of the backrest are provided with inwardly bent card edges, and a card slot and a plate for clamping the plate hammer are formed between the card edges and the backrest. The two ends of the hammer are respectively locked in two card slots.

In the above-mentioned double-plate tumble crusher, the backrest and the rotor are an integrated structure.

In the above-mentioned double-plate flip crusher, the backrest and the rotor are of a split structure, and the backrest and the rotor are detachably fixed.

In the above-mentioned double-plate flip crusher, the top of the backrest is lower than or flush with the top of the plate hammer.

In the above-mentioned double-plate flip crusher, the rack assembly includes a rack, a feeding port, a discharging port, and a plurality of impact plates provided on the rack. A crushing cavity, and the rotor assembly is disposed in the crushing cavity.

A crushing method of a double-plate tumble crusher is characterized in that it includes the following steps:

Step 1: The rotor rotates at high speed. After the material enters the crushing cavity from the feeding port, it falls to the impact surface on a plate hammer. The plate hammer hits the material through its impact surface, and the material is crushed by impact;

Step 2: The impacted and crushed material flies to the impact plate under the action of centrifugal force, and impacts and crushes again;

Step 3: The material hit by the impact plate rebounds and is hit by the impact surface of another plate hammer, and is broken again, and it stops again and again;

Step 4: After being crushed for several times, under the action of gravity, the material finally falls out of the outlet at the bottom of the rack.

The innovative idea of the present invention is: move the plate hammer outside the rotor, so that the impact surface of the plate hammer used to hit the material is completely exposed.

The core technology of the invention is that a backrest is provided on the outer periphery of the rotor, and one side of the plate hammer abuts on the corresponding backrest and is fixedly connected to the backrest by a fixing device.

Three main structural features of the invention:

1. A backrest is provided on the outer periphery of the rotor, and one side of the hammer abuts on the corresponding backrest and is fixedly connected to the backrest by a fixing device;

2. The rotor is provided with a positioning groove, and the bottom of the hammer is set in the positioning groove.

3. There are two hammers.

Compared with the prior art, the present invention has the advantages that almost all the impact surfaces of the plate hammer are exposed, and the range of hitting is large, which greatly improves the crushing efficiency. At the same time, the rotor shaft diameter can be greatly reduced, saving manufacturing costs and reducing Use energy consumption; two hammers are set to allow sufficient time for the material to impact the hammer's impact surface for crushing while the hammer has a sufficient speed; the crushing effect is good and the crushing efficiency is high; the fixing device has a simple structure and operation Convenient; the limit is fastened by bolts or card slots, so that the plate hammer can be reliably fixed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of the present invention.

In the figure, 1, the frame, 2, the rotor; 3, the hammer; 4, the shaft; 5, the counterattack; 6, backing.

detailed description

The following are specific embodiments of the present invention in combination with the drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

As shown in FIG. 1, a double-plate tumble crusher provided by the present invention includes a frame assembly, a rotor assembly, and a driving mechanism. The frame assembly includes a frame 1 and an inlet provided on the frame 1. The feed port, the discharge port, and multiple impact plates 5 are combined to form a crushing cavity. The rotor assembly is arranged in the crushing cavity. The impact plate 5 is detachably fixed on the frame 1; the rotor assembly includes the rotor 2 , Shaft 4, hammer 3 and backrest 66, the rotor 2 is cylindrical, the rotor 2 is concentrically fixed on the shaft 4, the two ends of the shaft 4 are set on the frame 1 through bearings and bearing seats, and the driving mechanism is a motor. The belt pulley is connected to one end of the rotating shaft 4, and the other end of the rotating shaft 4 is provided with a flywheel for balancing; the plate hammer 3 is in a strip shape, the plate hammer 3 extends in the same direction as the rotor 2, and the plate hammer 3 is provided with two and is connected to the backrest 6 One-to-one correspondence. The outer periphery of the rotor 2 is provided with recessed positioning grooves corresponding to the plate hammer 3. The cross-section of the positioning groove is U-shaped. The depth of the positioning groove is small. The bottom of the plate hammer 3 is located in the positioning groove. Only used for positioning of the plate hammer 3;

The length of the backrest 6 and the hammer 3 are equal to or slightly shorter than the length of the hammer 3. The top of the backrest 6 is lower than or flush with the top of the hammer 3. The bottom surface of the backrest 6 fits the outer periphery of the rotor 2. The backrest 6 can be tightened by multiple threads. The firmware is detachably fixed on the outer periphery of the rotor 2, and the backrest 6 can also be integrated with the rotor 2; one side of the rotor 2 abuts on the corresponding backrest 6 and is fixedly connected to the backrest 6 through a fixing device, and the other side of the hammer 3 The impact surface is used to impact the material, and the direction of the impact surface is consistent with the rotation direction of the rotor 2 when it is working.

There are various implementations of the fixing device, for example:

Example 1:

The fixing device corresponds to the plate hammer 3 one by one. The fixing device is a plurality of bolts. One end of the bolt passes through the backrest 6 and is screwed with the plate hammer 3, and the other end bears on the backrest 6. The plurality of bolts extend along the axis of the rotor 2. The directions are equally spaced in a row and arranged in a straight line. The bolts are easy to remove and the connection is reliable. To prevent the bolts from loosening, elastic washers and stop washers can be provided.

Example 2:

Both ends of the backrest 6 are provided with inwardly bent card edges, and a card slot for the plate hammer 3 to be formed between the card edge and the backrest 6. The two ends of the plate hammer 3 are respectively inserted into the two card slots. The clamping groove clamps and clamps the plate hammer 3 to form a fixing.

Example 3:

Example 2 is used in combination with Example 3.

There are many ways to arrange the two plate hammers 3 on the rotor 2:

The impact surfaces of the two plate hammers 3 may be located on the same plane, which is the first plane, and the two plate hammers 3 are located on the same side of the first plane. In order to balance the rotor assembly, the axis of the rotor 2 is located on the first plane. ;

The impact surfaces of the two plate hammers 3 can also be arranged in parallel. The surface located between and parallel to the two impact surfaces is the second plane, that is, the two plate hammers 3 are equally spaced from the second plane. In order to balance the rotor assembly, the rotor The axis line of 2 is located on the second plane, and the hammer 3 may be provided on the second plane or may be spaced from the second plane.

The crushing method of the double-plate tumble crusher includes the following steps:

Step 1: The rotor 2 rotates at a high speed, and the material falls from the feeding inlet into the crushing cavity, and at this time, it just contacts the impact surface on a plate hammer 3, and the material is crushed by the impact;

Step 2: The impacted and crushed material flies to the impact plate 5 under the action of centrifugal force, and then crashes again;

Step 3: The material hit by the impact plate 5 rebounds and is hit by the impact surface of the other plate hammer 3, and is broken again, and it stops again and again;

Step 4: Under the action of gravity, the material after being crushed multiple times finally falls out of the discharge opening at the bottom of the rack 1.

It should be understood that in the claims and specification of the present invention, all "including" shall be understood as an open-ended meaning, that is, its meaning is equivalent to "containing at least ..." and shall not be understood as closed-ended. Meaning, that its meaning should not be interpreted as "contains only ...".

The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the technical field to which the present invention pertains may make various modifications or additions to or replace the specific embodiments described in a similar manner, but will not depart from the spirit of the present invention or exceed the definition of the appended claims. Range.

Claims (10)

A double-plate tumble crusher includes a frame assembly and a rotor assembly, which is characterized in that the rotor assembly includes a rotor, a plate hammer disposed on the rotor, and a backrest. One corresponding, the backrest is fixed on the outer periphery of the rotor. The outer periphery of the rotor is provided with a recessed positioning groove corresponding to the hammer. The bottom of the hammer is set in the positioning groove. One side of the hammer rests on the corresponding backrest and passes through. A fixing device is fixedly connected to the backrest. The other side of the plate hammer is an impact surface for impacting the material. The direction of the impact surface is consistent with the rotation direction of the rotor when it is working. The double-plate tumble crusher according to claim 1, wherein the impact surfaces of the two-plate hammers are located on the same plane, the plane is the first plane, and the axis of the rotor is located on the first plane The two plate hammers are located on both sides of the first plane. The double-plate tumble crusher according to claim 1, wherein the impact surfaces of the two-plate hammers are arranged in parallel, and a surface located between the two impact surfaces and parallel to the two impact surfaces is a second plane, and the rotor The axis of the axis lies on the second plane. The double-plate tumble crusher according to claim 3, wherein the plate hammer is located on the second plane. The double-plate tumble crusher according to claim 3, wherein the plate hammer is spaced from the second plane. The double-plate tumble crusher according to claim 2 or 3, wherein the fixing device corresponds to the plate hammer one by one, and the fixing device is a plurality of bolts, and one end of the bolt passes through the bearing. Threaded to the back of the hammer. The double-plate tumble crusher according to claim 6, wherein a plurality of the bolts are provided, and the plurality of bolts are arranged at intervals along the extending direction of the rotor axis. The double-plate flip crusher according to claim 2 or 3, characterized in that both ends of the backrest are provided with clamping edges bent inward, and a space is formed between the clamping edges and the backrest for the above A card slot in which the hammer is clamped, and two ends of the hammer are respectively latched in two card slots. A double-plate tumble crusher according to claim 2 or 3, characterized in that the backrest and the rotor are of an integrated structure. The double-plate tumble crusher according to claim 2 or 3, characterized in that the backrest and the rotor are of a split structure, and the backrest and the rotor are detachably fixed.

Images