Impeller for sand making machine to adjust grain type and grading

Abstract

The utility model provides a kind of for sand making machine to adjust the impeller of grain type and grading, including upper cover disc and lower cover disc, it is provided with enclosure component between the upper cover disc and lower cover disc, array is provided with throw material passage on the enclosure component, the lower cover disc bottom is fixedly installed with connecting shaft sleeve, the lower cover disc top center is fixedly installed with distribution cone, it is arrayed to be provided with guide plate between the upper cover disc and lower cover disc and located inside enclosure component, the upper cover disc top center is provided with mouth ring, throw material passage tail end is provided with throw material head, the spacing of adjacent two throw material head and upper cover disc axis is not equal. The utility model has the advantages that grain type and grading are conveniently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of sand making machines, and in particular to an impeller for adjusting particle shape and gradation in sand making machines. Background Technology

[0002] The main structure of an impact crusher includes an upper cover section, impeller assembly, main shaft assembly, frame section, lower body section, upper body section, transmission section, and lifting assembly.

[0003] Working principle: The HVI series impact crusher and shaping machine utilizes the self-crushing of materials at high speed and the friction between materials to pulverize them. The HVI series impact crusher and shaping machine can not only crush stones, but also shape them.

[0004] Based on the material feeding method, the HVI series impact crusher and shaper can be divided into two types: fully center-feed and center-feed with cascade feeding. Based on the material's compressive strength and abrasiveness, the HVI series impact crusher and shaper can be divided into two crushing modes: "stone-on-stone" and "stone-on-iron". Therefore, the HVI series impact crusher and shaper has four working modes: center-feed with cascade feeding ("stone-on-stone" and "stone-on-iron"), and fully center-feed ("stone-on-stone" and "stone-on-iron").

[0005] The center-feed crusher operates on a "stone-on-stone" principle, with material entering the crusher through the upper cover section and falling onto the hanging plate section. From there, it enters the high-speed rotating impeller assembly in the center of the hanging plate, where it is rapidly accelerated and then ejected at high speed from the impeller channel. First, it impacts and crushes another portion of material falling from around the feed hopper. Then, together, they impact the material lining in the upper body section, rebounding and impacting obliquely upwards to the top of the crushing chamber ring seat, changing direction and moving downwards. The material ejected from the impeller channel forms a continuous curtain of material. Thus, a piece of material is crushed through multiple impacts, friction, and grinding within the crushing chamber. The crushed material leaves the crushing chamber under gravity and is discharged into the discharge hopper in the lower body section. A material lining forms in the upper body section, protecting the machine casing from impact wear. Its characteristic is that the material is accelerated by the impeller. About half of the particles gain energy in the impeller and are ejected to impact, rub against the falling material and the lining, or the materials collide at high speed and are broken. This method is called "stone-on-stone".

[0006] Center feeding accompanied by waterfall material "stone-on-iron" working principle

[0007] The basic principle is the same as that of center-feed with cascading material in "stone-on-stone" crushing. The difference is that in "stone-on-stone" crushing, there are no circumferential guard plates in the crushing chamber, and the material forms a lining around it. The material impacts the lining and is crushed. In contrast, in "stone-on-iron" crushing, there are circumferential guard plates installed in the crushing chamber, and the material directly impacts the circumferential guard plates and is crushed.

[0008] 3. Working principle of fully central feeding "stone-on-stone"

[0009] The basic working principle is the same as the "stone-on-stone" principle of center feeding accompanied by waterfall feeding. The difference is that when feeding is fully central, all the material falls directly from the feed inlet into the hanging plate, and then directly into the impeller through the middle of the hanging plate.

[0010] 4. The working principle of fully central feeding "stone-on-iron"

[0011] The basic principle is the same as that of center feeding accompanied by waterfall material "stone hitting iron", but the feeding method is completely center feeding.

[0012] In existing technologies, the impeller is relatively evenly distributed, and the throwing head is basically aligned with the center of the impeller, which makes the initial velocity of the material being thrown the same and reduces the probability of collision between materials, thus allowing for further improvements. Summary of the Invention

[0013] In order to solve the problems existing in the background art, this utility model proposes an impeller for adjusting the particle shape and gradation of a sand making machine.

[0014] An impeller for adjusting particle shape and gradation in a sand making machine includes an upper cover plate and a lower cover plate. A baffle assembly is provided between the upper and lower cover plates. A material throwing channel is arrayed on the baffle assembly. A connecting bushing is fixedly installed at the bottom of the lower cover plate. A material distribution cone is fixedly installed at the center of the top of the lower cover plate. A guide plate is arrayed between the upper and lower cover plates and inside the baffle assembly. A protective ring is provided at the center of the top of the upper cover plate. A material throwing head is provided at the tail end of the material throwing channel. The distance between two adjacent material throwing heads and the axis of the upper cover plate is not equal.

[0015] Based on the above, the enclosure assembly includes transverse enclosure plates and inclined seats arranged in an array between the upper cover plate and the lower cover plate. The number of transverse enclosure plates and inclined seats is equal, and each inclined seat is located between two adjacent transverse enclosure plates. An extension plate is welded to the middle of the outer side of each transverse enclosure plate, and the extension plate is perpendicular to the transverse enclosure plate. A support plate is fixedly installed at one end of the outer side of each inclined seat by bolts. A fixed side plate is fixedly installed at one end of the outer side of the support plate. One end of the inner side of the fixed side plate is in contact with the transverse enclosure plate. A wear-resistant block is fixedly installed at one end of the outer side of the fixed side plate by bolts. The transverse enclosure plates, inclined seats, support plates, and fixed side plates together enclose a material throwing channel.

[0016] Based on the above, the number of the transverse enclosure and the inclined seat is four, the number of the material throwing channel is four, the guide plate is inclined, the guide plate corresponds one-to-one with the material throwing channel, and the guide plate extends to the outer port of the material throwing channel.

[0017] Based on the above, one end of the outer side of the guide plate is fixedly installed to the throwing head by bolts. The throwing head is attached to the end of the transverse circumference plate away from the fixed side plate. The distance between the two diagonally opposite throwing heads and the axis of the upper cover plate is equal.

[0018] This utility model has substantial features and progress compared with the prior art. Specifically, this utility model fixes the throwing head at the end of the throwing channel, and the distance between two adjacent throwing heads and the axis of the upper cover plate is not equal, so that the thrown stones have different initial velocities, thereby enhancing the collision effect between the stones and having the advantage of convenient adjustment of particle shape and gradation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model.

[0020] Figure 2 This is a top view of the structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 100, upper cover plate; 200, lower cover plate; 300, enclosure assembly; 400, connecting bushing; 500, material distribution cone; 600, guide plate; 700, protective ring; 800, material throwing head; 301, transverse enclosure plate; 302, extension plate; 303, tilting seat; 304, support plate; 305, fixed side plate; 306, wear-resistant block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-2As shown, an impeller for adjusting particle shape and gradation in a sand making machine includes an upper cover plate 100 and a lower cover plate 200. A baffle assembly 300 is provided between the upper cover plate 100 and the lower cover plate 200. A material throwing channel is arrayed on the baffle assembly 300. A connecting bushing 400 is fixedly installed at the bottom of the lower cover plate 200. A material distribution cone 500 is fixedly installed at the center of the top of the lower cover plate 200. The connecting bushing 400 and the material distribution cone 500 are installed on the lower cover plate 200 by bolts. The connecting bushing 400 is used to connect with the drive shaft of the sand making machine, thereby driving the upper cover plate 100, the lower cover plate 200 and the baffle assembly 300 to rotate. A guide plate 600 is arrayed between the upper cover plate 100 and the lower cover plate 200, located inside the enclosure assembly 300. A protective ring 700 is located at the center of the top of the upper cover plate 100, and a throwing head 800 is located at the end of the throwing channel. The distance between two adjacent throwing heads 800 and the axis of the upper cover plate 100 is not equal. The stone to be crushed is fed into the enclosure assembly 300 through the protective ring 700. The dividing cone 500 guides the stone, causing it to fall onto the surface of the guide plate 600. As the guide plate 600 rotates, it pushes the stone, causing it to fly outward along the throwing channel. The difference in distance between the throwing head 800 and the axis of the upper cover plate 100 during installation results in different initial velocities of the thrown stone, making it easier to generate materials of different particle sizes upon collision.

[0024] In use, the enclosure assembly 300 includes transverse enclosure plates 301 and inclined seats 303 arranged in an array between the upper cover plate 100 and the lower cover plate 200. The number of transverse enclosure plates 301 and inclined seats 303 is equal, and each inclined seat 303 is located between two adjacent transverse enclosure plates 301. An extension plate 302 is welded to the middle of the outer side of the transverse enclosure plate 301, and the extension plate 302 is perpendicular to the transverse enclosure plate 301. A support plate 304 is fixedly installed on one outer end of the inclined seat 303 by bolts. A fixed side plate 305 is fixedly installed on one outer end of the support plate 304. One inner end of the fixed side plate 305 is in contact with the transverse enclosure plate 301. A wear-resistant block 306 is fixedly installed on one outer end of the fixed side plate 305 by bolts. The transverse enclosure plates 301, inclined seats 303, support plates 304, and fixed side plates 305 together enclose a material throwing channel.

[0025] Specifically, there are four transverse baffles 301 and four inclined seats 303, and four throwing channels. The guide plates 600 are inclined and correspond one-to-one with each throwing channel, extending to the outer end of the throwing channel. One end of the guide plate 600 is fixedly installed to the throwing head 800 with bolts. The throwing head 800 is attached to the end of the transverse baffle 301 away from the fixed side plate 305. The distance between two diagonally opposite throwing heads 800 and the axis of the upper cover plate 100 is equal. However, the distance between two adjacent throwing heads 800 and the upper cover plate 100 is unequal, resulting in different initial velocities of the stones flying out from adjacent throwing channels, enhancing the collision effect between the stones. Simultaneously, the position of the throwing head 800 can be adjusted according to different material properties to improve the particle shape and achieve adjustable gradation.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An impeller for adjusting particle shape and gradation in a sand making machine, characterized in that: The device includes an upper cover plate and a lower cover plate. A baffle assembly is provided between the upper cover plate and the lower cover plate. A material throwing channel is arrayed on the baffle assembly. A connecting bushing is fixedly installed at the bottom of the lower cover plate. A material distributing cone is fixedly installed at the center of the top of the lower cover plate. A guide plate is arrayed between the upper cover plate and the lower cover plate and inside the baffle assembly. A protective ring is provided at the center of the top of the upper cover plate. A material throwing head is provided at the end of the material throwing channel. The distance between two adjacent material throwing heads and the axis of the upper cover plate is not equal.

2. The impeller for adjusting particle shape and gradation in a sand making machine according to claim 1, characterized in that: The enclosure assembly includes transverse enclosure panels and inclined seats arranged in an array between the upper cover plate and the lower cover plate. The number of transverse enclosure panels and inclined seats is equal. Each inclined seat is located between two adjacent transverse enclosure panels. An extension plate is welded to the middle of the outer side of each transverse enclosure panel. The extension plate is perpendicular to the transverse enclosure panel. A support plate is fixedly installed on one side of the inclined seat by bolts. A fixed side plate is fixedly installed on one side of the support plate. One side of the fixed side plate is in contact with the transverse surrounding plate. A wear-resistant block is fixedly installed on one side of the fixed side plate by bolts. The horizontal enclosure, inclined seat, support plate and fixed side plate together form a material throwing channel.

3. The impeller for adjusting particle shape and gradation in a sand making machine according to claim 2, characterized in that: The number of the horizontal enclosure and the inclined seat are both four, the number of the material throwing channel is four, the guide plate is inclined, the guide plate corresponds to the material throwing channel one by one, and the guide plate extends to the outer port of the material throwing channel.

4. The impeller for adjusting particle shape and gradation in a sand making machine according to claim 3, characterized in that: One end of the guide plate is fixed to the throwing head by bolts. The throwing head is attached to the end of the transverse circumference plate away from the fixed side plate. The two diagonally opposite throwing heads are equally spaced from the axis of the upper cover plate.

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