Vertical shaft impact crusher

Abstract

The utility model relates to a vertical shaft impact crusher which comprises a crusher body, a feed bin outer ring mounted at the top of the crusher body, a feed bin inner ring fixed in the feed bin outer ring at intervals, and a plurality of waterfall material inlets formed in the feed bin inner ring, the adjusting ring is embedded in the inner ring of the feeding bin in a sliding manner; the plurality of groups of filler strips are mounted between the inner ring of the feeding bin and the adjusting ring through fasteners; the central feeding ring is embedded and fixed on the adjusting ring; and the material distribution disc is arranged on the outer ring of the feeding bin and is arranged above the central feeding ring. According to the utility model, the height-adjustable adjusting ring partially shields the waterfall material inlet, so that the size of the waterfall material can be controlled, the granularity of the crushed material is more uniform, stones on the adjusting ring can be directly distributed along the waterfall material inlet and the central feeding ring, the material storage of the feeding bin is reduced, and the crushing efficiency is improved. Inertia and vibration of the machine body are relieved, and shaping and sand making effects are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sandstone production, especially to a vertical shaft impact crusher. BACKGROUND

[0002] The vertical shaft impact crusher is an industrial equipment for sandstone production, and its principle is to use high-speed moving materials to break and crush each other and between materials. The impact crushing can not only crush stones, but also shape the stones. According to the feeding mode of the materials, the working form of the centrifugal impact crusher can be divided into complete center feeding and center feeding with waterfall feeding. According to the compressive strength and abrasiveness of the materials, the working form of the centrifugal impact crusher can be divided into two crushing forms of "stone hitting stone" and "stone hitting iron". Therefore, the working form of the centrifugal impact crusher can be divided into four forms: center feeding with waterfall feeding, "stone hitting stone", "stone hitting iron", complete center feeding, "stone hitting stone" and "stone hitting iron".

[0003] The Chinese patent with the authorized announcement number CN206008920U discloses a high-efficiency vertical shaft impact crusher, which comprises a rack, a cover assembly, a feeding bin assembly and a discharging bin assembly. A rotating wheel assembly is arranged in the discharging bin assembly, and the rotating wheel assembly is connected with a bearing seat assembly. A corridor railing and a step frame are arranged on the rack, and the bearing seat assembly is connected with a motor assembly. The feeding bin assembly is provided with a hydraulic cover opening device and a hydraulic feeding adjusting device. The feeding bin assembly further comprises an inner ring of a feeding hopper, an outer ring of the feeding hopper and a cloth disc. The outer ring of the feeding hopper is welded with a connecting seat of the hydraulic cover opening device, and the inner ring of the feeding hopper is installed inside the outer ring of the feeding hopper. A strip-shaped opening is formed around the inner ring of the feeding hopper, and a center feeding opening is formed at the bottom of the inner ring of the feeding hopper. The material flow of the center feeding opening enters the rotating wheel assembly.

[0004] The above-mentioned crusher belongs to the center feeding with waterfall feeding "stone hitting stone". The strip-shaped opening of the inner ring of the feeding hopper serves as a waterfall material inlet, and the waterfall material inlet is provided with an adjustable height baffle. The size of the waterfall material flow can be adjusted according to the actual crushing condition, and the size of the waterfall material can be changed to control the passing capacity and the shaping effect. Therefore, the stone materials in the feeding hopper can enter the crushing cavity from the waterfall material inlet only after accumulating at the waterfall material inlet, and then collide with the stone materials thrown by the rotor. This causes the storage of materials in the feeding bin, poor overflow effect, and increased inertia and vibration of the machine body, which affects the performance of the equipment and needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model solves the above-mentioned problems in the prior art and provides a vertical shaft impact crusher, which has the advantages of reducing the storage of materials in the feeding bin and relieving the inertia and vibration of the machine body.

[0006] The utility model discloses the above-mentioned practical new type is through the following technical scheme to realize's practical new type purpose is:

[0007] A vertical shaft impact crusher, including the crusher body, the outer circle of feed bin is installed to the top of the crusher body, the inner circle of feed bin is fixed in the outer circle of feed bin gap, and a plurality of cascade material inlets are opened on the inner circle of feed bin, still include the adjusting ring of slidingly embedded in the inner circle of feed bin, the plurality of groups of pad strip are installed between the inner circle of feed bin and adjusting ring through fastener, the center feed ring is embedded fixed on the adjusting ring, and the distribution disc is arranged on the outer circle of feed bin and is arranged above the center feed ring, a plurality of cascade material inlets and a plurality of groups of pad strip are arranged staggeredly, and a plurality of pad strips in each group are stacked along the height direction of cascade material inlet, so that the adjusting ring partially shields the cascade material inlet.

[0008] By adopting the above technical scheme, when feeding, the stone is divided into four parts by the distribution disc, then enters the inner circle of feed bin to form the inner circle of feed bin, and directly falls on the adjusting ring;At the same time, the adjustable height of the cascade material inlet can adjust the number and height of the pad strip according to the actual crushing condition, so as to realize the accurate control of the cascade material size, and then realize the control of the throughput and the shaping effect;In addition, due to the heightening of the pad strip to the adjusting ring, the stone on the adjusting ring can be directly divided along the cascade material inlet and the center feed ring, and the material can pass through the gap between the outer circle of feed bin and the inner circle of feed bin, so as to realize the stone-on-stone process of the center feed accompanying the cascade feed, which is beneficial to reduce the storage of the feed bin, relieve the inertia and vibration of the machine body, and ensure the shaping and sand making effect.

[0009] The utility model further sets up as: the inner wall of the inner circle of feed bin is provided with the mounting ring, and a plurality of pad strips in each group are stacked on the mounting ring along the height direction of cascade material inlet.

[0010] By adopting the above technical scheme, the pad strip can be stably installed on the inner circle of feed bin and is not easy to fall off or shake.

[0011] The utility model further sets up as: the pad strip is set as the arc strip that is attached to the inner wall of the inner circle of feed bin.

[0012] By adopting the above technical scheme, the pad strip can be stably installed on the inner circle of feed bin and is not easy to fall off or shake.

[0013] The utility model further sets up as: the pad strip is of flexible material.

[0014] When the gasket is impacted by the stone, a certain deformation can be generated, so that the impact force can be absorbed and dispersed, and the adjusting ring can be prevented from being damaged due to an excessive impact force; meanwhile, the gasket made of the flexible material can be better attached to the inner wall of the inner circle of the feeding bin, and the stability of installation can be improved.

[0015] The utility model further sets up: the feeding bin outer circle and the distribution disc between being provided with the distribution groove.

[0016] Through adopting the technical scheme, the distribution groove can guide and distribute the stone, so that the stone can be more evenly dropped on the adjusting ring, the stone is prevented from being accumulated or locally overloaded, and the crushing effect and the quality of the shaped sand are further improved.

[0017] The utility model further sets up: the distribution groove is horizontally arranged and is relatively inclinedly arranged to the feeding direction.

[0018] Through adopting the technical scheme, the inclined arrangement of the distribution groove can better guide the stone to slide along the distribution groove, ensure that the stone can be evenly and continuously dropped on the adjusting ring, further improve the crushing efficiency and the sand making quality; meanwhile, the inclinedly arranged distribution groove can also reduce the impact force of the stone during the distribution process, reduce the abrasion of the adjusting ring and the gasket, and prolong the service life of the equipment.

[0019] The utility model further sets up: a pair of arc-shaped baffles are arranged on the feeding bin outer circle, and the pair of arc-shaped baffles are symmetrically arranged along the feeding direction.

[0020] Through adopting the technical scheme, the arc-shaped baffles are used to guide the stone conveyed by the belt conveyor to fall into the feeding bin.

[0021] The utility model further sets up: a plurality of reinforcing ribs are arranged between the arc-shaped baffles and the feeding bin outer circle.

[0022] Through adopting the technical scheme, the installation stability of the arc-shaped baffles can be improved.

[0023] In summary, the beneficial technical effects of the utility model are as follows: the adjusting ring with the adjustable height is used to partially block the waterfall inlet, not only can control the size of the waterfall, so that the particle size of the crushed material is more uniform, but also can make the stone on the adjusting ring directly shunt along the waterfall inlet and the center feeding circle, which is beneficial to reduce the storage of the feeding bin, relieve the inertia and vibration of the machine body, and ensure the shaping sand effect. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the structure schematic diagram of the vertical shaft impact crusher of the utility model.

[0025] Figure 2It is partial sectional structure schematic diagram of vertical shaft impact crusher of the utility model.

[0026] In the drawing, 1, crusher body; 2, feed bin assembly; 21, feed bin outer ring; 22, feed bin inner ring; 221, waterfall inlet; 222, mounting ring; 23, adjusting ring; 24, pad strip; 25, center feed ring; 26, material distribution groove; 27, arc-shaped baffle; 271, reinforcing rib; 28, material distribution disc; 3, main shaft assembly; 4, rotor. DETAILED DESCRIPTION

[0027] In order to make the technical means, creation features, purposes and effects of the utility model more clear and easy to understand, the utility model is further described below in combination with the drawings and specific embodiments.

[0028] Referring to Figure 1 and Figure 2 The utility model discloses a vertical shaft impact crusher, which comprises a crusher body 1, a feed bin assembly 2 mounted on the top of the crusher body 1, a main shaft assembly 3 mounted in the crusher body 1, and a rotor 4 arranged on the output shaft of the main shaft assembly 3. The feed bin assembly 2 has a center feed channel and an overflow channel that are in communication with a crushing cavity where the rotor 4 is located. The feed inlet of the center feed channel and the overflow channel is approximately at the same height, and the height is adjustable, so as to avoid material storage in the feed bin, relieve the inertia and vibration of the machine body, and realize the stone-on-stone process with center feeding and waterfall feeding at the high-speed rotating rotor 4.

[0029] The feed bin assembly 2 comprises a material distribution groove 26 and a pair of arc-shaped baffles 27 arranged on the feed bin outer ring 21, a material distribution disc 28 arranged on the material distribution groove 26, and a plurality of reinforcing ribs 271 arranged between the arc-shaped baffles 27 and the feed bin outer ring 21. The material distribution groove 26 is horizontally arranged and inclined relative to the feeding direction, and the pair of arc-shaped baffles 27 are symmetrically arranged along the feeding direction.

[0030] During feeding, the arc-shaped baffles 27 are used to guide the stone material conveyed by the belt conveyor to fall into the feed bin, and the material distribution groove 26 can guide and distribute the stone material, so that the stone material falls more uniformly on the adjusting ring 23, avoiding accumulation or local overload of the stone material, thereby further improving the crushing effect and the quality of the shaped sand. Meanwhile, the inclined arrangement of the material distribution groove 26 can better guide the stone material to slide along the material distribution groove 26, ensuring that the stone material can uniformly and continuously fall on the adjusting ring 23, further improving the crushing efficiency and the sand making quality; meanwhile, the inclined arrangement of the material distribution groove 26 can also reduce the impact force of the stone material during the distribution process, reducing the wear of the adjusting ring 23 and the pad strip 24, and prolonging the service life of the equipment.

[0031] Referring to Figure 2The feeding bin assembly 2 further comprises a feeding bin outer ring 21 installed on the top of the crusher body 1, a feeding bin inner ring 22 gap-fixed in the feeding bin outer ring 21, a plurality of cascading material inlets 221 opened on the feeding bin inner ring 22, a mounting ring 222 arranged on the inner wall of the feeding bin inner ring 22, an adjusting ring 23 slidingly embedded in the feeding bin inner ring 22, a plurality of groups of gasket strips 24 installed between the mounting ring 222 and the adjusting ring 23 through fasteners (not shown in the figure), and a central feeding ring 25 embedded and fixed on the adjusting ring 23 and arranged below the material distribution disc 28. The plurality of cascading material inlets 221 and the plurality of groups of gasket strips 24 are arranged staggeredly, and the plurality of gasket strips 24 in each group are arranged in a stacked manner along the height direction of the cascading material inlet 221 and are lapped on the mounting ring 222, so that the adjusting ring 23 partially blocks the cascading material inlet. In addition, the gasket strip 24 is arranged as a flexible arc-shaped strip abutting the inner wall of the feeding bin inner ring 22.

[0032] When the stone is discharged, the stone is distributed to the periphery by the material distribution disc 28 and then enters the feeding bin formed by the feeding bin inner ring 22 and directly falls on the adjusting ring 23. When the gasket strip 24 is impacted by the stone, a certain deformation can be generated, so that the impact force is absorbed and dispersed, and the adjusting ring 23 is prevented from being damaged due to excessive impact force. At the same time, the gasket strip 24 made of flexible material can better abut the inner wall of the feeding bin inner ring 22, thereby improving the stability of installation. At the same time, the cascading material inlet 221 has the adjusting ring 23 with adjustable height, the number and height of the gasket strip 24 can be adjusted according to the actual crushing condition, so that the size of the cascading material is accurately controlled, and the throughput and the reshaping effect are controlled. In addition, due to the heightening of the gasket strip 24 to the adjusting ring 23, the stone on the adjusting ring 23 can be directly distributed along the cascading material inlet 221 and the central feeding ring 25, and the material does not need to be accumulated and can pass through the gap between the feeding bin outer ring 21 and the feeding bin inner ring 22, so that the stone-on-stone process of the central feeding accompanied by the cascading feeding is realized, which is beneficial to reduce the material storage in the feeding bin, relieve the inertia and vibration of the machine body, and ensure the reshaping and sand making effect.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A vertical shaft impact crusher, comprising a crusher body (1), an outer ring (21) of a feed hopper installed on the top of the crusher body (1), an inner ring (22) of a feed hopper fixed at intervals within the outer ring (21), and a plurality of waterfall inlets (221) opened on the inner ring (22), characterized in that: It also includes an adjusting ring (23) that is slidably embedded in the inner ring (22) of the feed hopper, multiple sets of pads (24) that are fastened between the inner ring (22) of the feed hopper and the adjusting ring (23), a central feed ring (25) that is embedded and fixed on the adjusting ring (23), and a material distribution plate (28) that is set on the outer ring (21) of the feed hopper and arranged above the central feed ring (25). The multiple waterfall material inlets (221) and the multiple sets of pads (24) are arranged alternately, and the multiple pads (24) in each set are stacked along the height direction of the waterfall material inlet (221) so that the adjusting ring (23) partially blocks the waterfall material inlet.

2. A vertical shaft impact crusher according to claim 1, characterized in that: The inner wall of the inner ring (22) of the feed hopper is provided with an installation ring (222), and multiple pads (24) in each group are stacked and overlapped on the installation ring (222) along the height direction of the waterfall material inlet (221).

3. A vertical shaft impact crusher according to claim 2, characterized in that: The pad (24) is configured as an arc-shaped strip that fits against the inner wall of the inner ring (22) of the feed hopper.

4. A vertical shaft impact crusher according to claim 3, characterized in that: The pad strip (24) is made of flexible material.

5. A vertical shaft impact crusher according to claim 1, characterized in that: A material feeding trough (26) is provided between the outer ring (21) of the feeding hopper and the material feeding tray (28).

6. A vertical shaft impact crusher according to claim 5, characterized in that: The fabric trough (26) is arranged horizontally and inclined relative to the feeding direction.

7. A vertical shaft impact crusher according to claim 6, characterized in that: A pair of arc-shaped baffles (27) are provided on the outer ring (21) of the feed hopper, and the pair of arc-shaped baffles (27) are symmetrically arranged along the feed direction.

8. A vertical shaft impact crusher according to claim 7, characterized in that: Multiple reinforcing ribs (271) are provided between the arc-shaped baffle (27) and the outer ring (21) of the feed hopper.

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