Parabola type circumferential impact block vertical shaft crusher

Abstract

The utility model relates to the technical field of crushers, and particularly discloses a parabola type circumferential impact block vertical shaft crusher which comprises a feed hopper, a distribution disc, a throwing wheel, a crushing cavity and a transmission shaft, according to the utility model, the circumferential impact block is arranged in the crushing cavity, and one surface of the circumferential impact block, which is opposite to the throwing wheel, is made into a parabola shape from top to bottom, so that sand hit on the surface of the circumferential impact block is not easy to accumulate on the circumferential impact block, and can quickly slide to the discharge hole along the parabola surface of the circumferential impact block; and the phenomenon that stones hit the stones due to excessive accumulation on the circumferential impact blocks is avoided, and the crushing effect of a'stone-hit-iron 'crushing mode is formed. And meanwhile, the parabola-shaped surface of the circumferential impact block is made into a vertical rack shape and is spread in the circumferential direction of the crushing cavity, so that a plurality of sharp edges can be formed, high-speed sand and gravel can directly impact the sharp edges like cutting and are mutually combined with the paraboloid shape, and the crushing effect and the crushing efficiency of the materials can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushers, in particular to a parabolic circular impact block vertical shaft crusher. Background Art

[0002] Vertical shaft crusher is a crusher that transfers materials from the upper part of the feed hopper to the distribution plate and then vertically falls into the high-speed rotating impeller. The materials are ejected under the action of centrifugal force and crushed after colliding with the circular impact blocks on the inner wall of the crushing chamber shell. It is commonly used in the production of stone shaping and stone sand making.

[0003] However, the existing vertical shaft crushers still have the disadvantage of poor effective crushing effect. The circular impact block adopts L shape. During the production process, a layer of sand and gravel is easily accumulated on the inner side of the L-shaped circular impact block. The impeller rotates at high speed under the power of the equipment. The sand and gravel that subsequently falls into the impeller splashes onto the sand and gravel accumulated in the circular impact block under the action of centrifugal force, forming a "stone hitting stone" crushing mode, and the crushing effect is not good. Moreover, for the special material of the stone, the hardness and other indicators are low, and the crushing effect is poor during the "stone hitting stone" crushing process. The fineness modulus of the output medium sand is high, which does not meet the 3.0-2.3 standard required by the specification. Patent "A vertical impact crusher"

[0004] (CN105170242B) By providing a plate hammer on the side where the impact plate collides with the material, the impact force and impact speed of the material can be increased, but the crushing effect still needs to be improved. Utility Model Content

[0005] The utility model aims to provide a novel vertical shaft crusher to solve the problems of easy accumulation of crushed materials and insufficient crushing effect of existing ordinary vertical shaft impact crushers, further improve the yield of crushed materials and expand the application field of the crusher.

[0006] The specific technical solutions are as follows:

[0007] A parabolic circular impact block vertical shaft crusher comprises a feed hopper, a distribution plate, an impeller, a crushing chamber and a transmission shaft, wherein the feed hopper is arranged directly above the distribution plate, the distribution plate is arranged on the top of the shell of the crushing chamber, the impeller is installed in the crushing chamber and directly below the distribution plate, the transmission shaft is connected to the power device and drives the impeller to rotate, and a circular impact block is arranged on the inner wall of the crushing chamber, and the side of the circular impact block facing the impeller is made into a parabola from top to bottom.

[0008] Preferably, the parabolic surface of the circular impact block is made into a vertical rack shape. The vertical rack shape can form multiple sharp edges, allowing high-speed sand and gravel to directly hit the sharp edges, just like cutting with a knife, and combined with the parabolic shape, the crushing effect is better.

[0009] Preferably, the circumferential impact blocks are distributed along the circumferential direction of the crushing chamber, that is, the inner wall of the crushing chamber is vertically rack-shaped along the circumferential direction.

[0010] Preferably, the inner wall of the crushing chamber is provided with an impact block fixing seat, the side of the circumferential impact block away from the impeller is provided with a connecting portion with a screw hole, and the circumferential impact block is detachably connected to the impact block fixing seat by bolts. The circumferential impact block can be replaced according to the wear condition.

[0011] Preferably, the inner wall of the crushing chamber is provided with a peripheral guard plate along the circumferential direction.

[0012] Preferably, an upper guard plate is provided on the top of the inner wall of the crushing chamber.

[0013] Preferably, the peripheral guard plate and the upper guard plate are made of iron sheets. The iron guard plate collides with sand and gravel to form a so-called "stone hitting iron" crushing mode, and the crushing effect is higher than that of the "stone hitting stone" crushing mode.

[0014] Preferably, the crushing chamber is provided with a feed port at one end close to the distribution plate, and a discharge port at the other opposite end, and the size of the feed port is smaller than the size of the discharge port.

[0015] Compared with the existing technology, the utility model has the following beneficial effects:

[0016] 1. The utility model arranges a circular impact block inside the crushing chamber, and makes the side of the circular impact block facing the impeller into a parabola from top to bottom, so that the sand hitting the surface is not easy to accumulate on the circular impact block, and can quickly slide down to the discharge port along the parabolic surface of the circular impact block, avoiding the phenomenon of stone hitting stone due to excessive accumulation on the circular impact block, forming the so-called "stone hitting iron" crushing mode crushing effect, and the crushing efficiency can be increased by about 20% compared with "stone hitting stone".

[0017] 2. The utility model makes the parabolic surface of the circular impact block into a vertical rack shape, and spreads it along the circumferential direction of the crushing chamber, so that multiple sharp edges can be formed, allowing high-speed sand and gravel to directly hit the sharp edges, just like cutting with a knife, which is combined with the parabolic shape to improve the crushing effect and efficiency of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0019] Figure 1This is the general diagram of the parabolic circular impact block vertical shaft crusher of the utility model.

[0020] Figure 2 It is a front view of the crushing chamber of the parabolic circular impact block vertical shaft crusher of the utility model.

[0021] Figure 3 It is a top view of the crushing chamber of the parabolic circular impact block vertical shaft crusher of the utility model.

[0022] Among them, the main reference numerals are described as follows:

[0023] 1-feed hopper, 2-distribution plate, 3-throwing wheel, 4-crushing chamber, 5-transmission shaft, 6-hinged ear plate, 7-hinged ear seat, 8-hydraulic jack, 9-housing, 10-circumferential impact block, 11-impact block fixing seat, 12-upper guard plate, 13-circumferential guard plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "longitudinal" and "lateral"

[0026] The orientations or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “top surface”, “bottom surface”, “inside”, “outside”, “inner side”, “outer side”, etc. are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0029] Example 1

[0030] like Figure 1 As shown, a parabolic circular impact block vertical shaft crusher includes a feed hopper 1, a material distribution plate 2, a slinger 3, a crushing chamber 4 and a transmission shaft 5. The feed hopper 1 is used to load crushed materials, the material distribution plate 2 is used to introduce the crushed materials discharged from the feed hopper 1 into the crushing chamber 4, and the slinger 3 rotates at a high speed driven by the transmission shaft 5 to throw the crushed materials to the circular impact block 10 on the inner wall of the crushing chamber 4 for crushing and discharge. The present application has a better crushing effect by improving the shape and structure of the circular impact block 10, which can improve the yield rate of material crushing and expand the application field of the crusher.

[0031] Continue to refer Figure 1 The feed hopper 1 is installed directly above the distribution plate 2, the distribution plate 2 is fixed to the top surface of the shell 9 of the crushing chamber 4 with bolts, the impeller 3 is installed in the crushing chamber 4, and directly below the distribution plate 2, the transmission shaft 5 connected to the impeller 3 is connected to the motor through a belt, that is, the motor drives the transmission shaft 5 to rotate at a high speed, thereby driving the impeller 3 to rotate at a high speed.

[0032] Continue to refer Figure 1 The feed hopper 1 is provided with an articulated ear plate 6, and an articulated ear seat 7 is provided outside the crushing chamber 4. The articulated ear plate 6 and the articulated ear seat 7 are articulated, so that the feed hopper 1 is articulated with the crushing chamber 4 by a hinge. Specifically, a hydraulic jack 8 is installed on the articulated ear seat 7, the lower end of the hydraulic jack 8 is connected to the articulated ear seat 7 of the crushing chamber 4, and the upper end of the hydraulic jack 8 is connected to the articulated ear plate 6 of the feed hopper 1. The hydraulic jack 8 is used to open and close the feed hopper 1, and the operation is convenient and simple.

[0033] like Figure 2 , Figure 3 As shown, the crushing chamber 4 includes a shell 9, a circumferential impact block 10, an impact block fixing seat 11, an upper guard plate 12 and a peripheral guard plate 13.

[0034] Continue to refer Figure 2 , Figure 3The circumferential impact block 10 is on one side facing the impeller 3, and is made into a parabola from top to bottom, and a number of vertical rack shapes are made on the surface. The circumferential impact block 10 is distributed on the inner wall of the crushing chamber 4, and the impact block fixing seat 11 is installed on the inner wall of the shell 9 of the crushing chamber 4. The back of the circumferential impact block 10 is installed on the impact block fixing seat 11 and tightened with bolts. The upper guard plate 12 is installed on the inner surface of the top surface of the shell 9 of the crushing chamber 4, and the peripheral guard plate 13 is installed on the inner wall of the shell 9 of the crushing chamber 4.

[0035] The vertical shaft crusher is used to crush sand and gravel. The sand and gravel fall vertically from the upper part of the feed hopper 1 to the distribution plate 2 and then fall into the impeller 3. The impeller 3 rotates at high speed under the power of the equipment. The sand and gravel falling into the impeller 3 are ejected under the action of centrifugal force, collide with the circular impact block 10 on the inner wall of the shell 9 of the crushing chamber 4, and are instantly crushed. The crushed sand and gravel slide quickly along the parabolic surface of the circular impact block 10 to the discharge port, avoiding the accumulation of crushed sand and gravel on the circular impact block 10, and allowing the sand and gravel that fall into the impeller 3 to continue to directly hit the iron guard plate of the circular impact block 10, forming the so-called "stone hitting iron" crushing mode crushing effect, and the crushing efficiency is high, which can be increased by about 20% compared with "stone hitting stone". The side of the circular impact block 10 facing the impeller is made into a vertical rack shape, forming multiple sharp edges, allowing high-speed sand and gravel to directly hit the sharp edges, just like cutting with a knife. The combination of the above two shapes has a better crushing effect. The fineness modulus of the finished product is as low as 3.0-2.3. The coarse sand parameter is increased and the medium sand parameter is reduced, reaching a coarse sand: medium sand = 1:1 ratio, making full use of the coarse sand and achieving the full utilization effect of the finished product.

[0036] In summary, this vertical shaft crusher adopts a parabolic circular impact block, so that the sand hitting its surface is not easy to accumulate on the circular impact block, and can quickly slide down to the discharge port along the parabolic surface of the circular impact block, avoiding the phenomenon of stone hitting stone due to excessive accumulation on the circular impact block, forming the so-called "stone hitting iron" crushing mode. At the same time, the parabola of the circular impact block is made into a vertical rack shape, which can effectively improve the crushing effect of sand and gravel raw materials and reduce the proportion of machine-made sand return material crushing. The combination of the two shapes of the circular impact block can improve the unit time yield of machine-made sand, reduce the parameters of machine-made sand, and increase the parameters of washed sand, so as to achieve a reference ratio of machine-made sand to washed sand concrete = 1:1.

[0037] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A parabolic circular impact block vertical shaft crusher, comprising a feed hopper, a material distribution plate, a sling, a crushing chamber and a transmission shaft, wherein the feed hopper is arranged directly above the material distribution plate, the material distribution plate is arranged on the top of the shell of the crushing chamber, the sling is installed in the crushing chamber and directly below the material distribution plate, the transmission shaft is connected to the power device and drives the sling to rotate, characterized in that: The inner wall of the crushing chamber is provided with a circumferential impact block, and the side of the circumferential impact block facing the impeller is made into a parabola from top to bottom.

2. A parabolic circular impact block vertical shaft crusher according to claim 1, characterized in that: The surface of the circumferential impact block which is made into a parabola shape is made into a vertical rack shape.

3. The parabolic circular impact block vertical shaft crusher according to claim 1, characterized in that: The circumferential impact blocks are distributed along the circumferential direction of the crushing chamber.

4. The parabolic circular impact block vertical shaft crusher according to claim 1, characterized in that: An impact block fixing seat is arranged on the inner wall of the crushing chamber, a connecting portion with a screw hole is arranged on a side of the circumferential impact block away from the impeller, and the circumferential impact block is detachably connected to the impact block fixing seat by bolts.

5. The parabolic circular impact block vertical shaft crusher according to claim 1, characterized in that: The inner wall of the crushing chamber is provided with a peripheral guard plate along the circumferential direction.

6. The parabolic circular impact block vertical shaft crusher according to claim 5, characterized in that: An upper guard plate is provided on the top of the inner wall of the crushing chamber.

7. The parabolic circular impact block vertical shaft crusher according to claim 6, characterized in that: The surrounding guard plate and the upper guard plate are made of iron sheets.

8. The parabolic circular impact block vertical shaft crusher according to claim 1, characterized in that: The crushing chamber is provided with a feed inlet at one end close to the material distribution plate, and a discharge outlet at the other opposite end, and the size of the feed inlet is smaller than that of the discharge outlet.

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