Feed hopper of impact crusher

Abstract

The utility model provides a feed hopper of an impact crusher, which comprises a rack, a rotor arranged in the rack, a plate hammer component arranged on the rotor and a feed hopper arranged on the rack, the feed hopper comprises a bottom plate and two side plates, the two side plates are fixed on the left side and the right side of the bottom plate, a feed port flange is arranged at the lower end of the bottom plate, and fixing parts are arranged on the side plates. The bottom plate is arc-shaped, a plurality of mounting holes are formed in the bottom plate, at least one lining plate is welded and fixed on the upper arc-shaped surface of the bottom plate, and the curvature of the lining plate is consistent with that of the bottom plate. According to the feeding hopper of the impact crusher, under the condition that the overall structure of the impact crusher is not changed, the circular-arc-shaped feeding hopper is arranged, the circular-arc-shaped lining plate is arranged on the feeding hopper, the feeding hopper is fixed to the feeding hopper in a welded mode, and only the circular-arc-shaped lining plate needs to be replaced when the feeding hopper is replaced; and the service life of the arc feeding hopper is prolonged, the maintenance convenience is improved, the use cost of equipment is reduced, and the competitive advantage of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to mining crushing equipment, in particular to a feeding hopper of an impact crusher. Background Art

[0002] As a crusher that uses the impact principle to crush materials, the impact crusher has the characteristics of large crushing ratio, simple structure, wide application range, and competitive finished product particle shape. In the field of soft rock mining, it is the best equipment for preparing high-grade coarse aggregate and is widely used in mining, chemical, construction, railway and other industries.

[0003] Since the impact crusher has a relatively large crushing capacity and is limited by its working principle, the gradation of the finished product is relatively fixed, and the proportion of materials in a certain particle size range in the finished product is also relatively fixed. However, different particle size ranges have different customer needs. For example, materials with a particle size of 40~80mm are in great demand in cement plants, coal, steel and other fields, while the proportion of materials in this range is usually around 25%-30%, which is relatively low, and existing equipment is difficult to meet customer needs.

[0004] Usually, the bottom plate of the feed hopper of the existing impact crusher is a flat steel plate. When the material passes through the feed hopper, it is affected by centrifugal force and gravity, and the feed hopper bottom plate wears a lot, which affects the service life of the feed hopper. At the same time, the maintenance and replacement cost is high and maintenance is difficult. Utility Model Content

[0005] In view of the above problems, the utility model is proposed to provide a feed hopper for an impact crusher which overcomes the above problems or at least partially solves the above problems. By arranging an arc-shaped bottom plate and a liner, the wear of materials when passing through the feed hopper is reduced, which has the advantage of extending the service life of the feed hopper and reducing the maintenance and replacement costs of the feed hopper.

[0006] Specifically, the utility model provides a feed hopper of an impact crusher, including a frame, a rotor is arranged in the frame, a plate hammer assembly is arranged on the rotor, a plurality of impact frame assemblies are arranged on the top of the frame from top to bottom, the working area where the plate hammer assembly and the impact frame assembly cooperate to crush is a crushing arc area, and the finished material is discharged from the discharge port below after passing through the crushing arc area, and a feed hopper is arranged on the frame, and the feed hopper includes a bottom plate and two side plates, the two side plates are fixed on the left and right sides of the bottom plate, and the two side plates and the bottom plate are connected to form a bucket shape. A feed port flange for fixing to the crusher frame is arranged at the lower end of the bottom plate, and a fixing part for connecting and fixing to the crusher frame is arranged on the side plate. The bottom plate is arc-shaped, and a plurality of mounting holes are arranged on the bottom plate. At least one arc-shaped lining plate is welded and fixed on the upper arc surface of the bottom plate, and the curvature of the lining plate and the bottom plate are consistent.

[0007] Optionally, at least one stopper is welded and fixed on the bottom plate, and the stopper is in the shape of a long strip, dividing the upper arc surface of the bottom plate into several areas from top to bottom. The lower end of the liner is arranged in contact with the stopper to fix the position of the liner. The arc surface of the liner and the end surface of the stopper contacting the material form a smooth arc transition.

[0008] Optionally, the lower end surface of the bottom plate is provided with ribs arranged in a grid pattern for reinforcing the strength of the bottom plate, and the mounting holes are evenly arranged in the area enclosed by the ribs and the bottom plate.

[0009] Optionally, it also includes a rear plate and a top plate for preventing material from splashing. The rear plate and the top plate are welded and fixed to the two side plates in an L shape. The rear plate and the top plate are located in the center direction of the arc surface of the bottom plate. The rear plate is placed vertically and the top plate is placed horizontally. The top plate is welded and fixed to the upper end surface of the rear plate. The upper ends of the top plate and the bottom plate form a feed port, and the lower end of the rear plate and the lower end of the bottom plate form a discharge port.

[0010] Optionally, a barrier curtain is arranged on the top plate in the vertical direction.

[0011] Optionally, a plurality of hanging chains are evenly arranged between the barrier curtain and the rear plate, and the upper ends of the hanging chains are fixed on the top plate.

[0012] The feed hopper of the impact crusher in the utility model is arranged at the feeding port with an arc-shaped feed hopper without changing the overall structure of the impact crusher, and an arc-shaped lining plate is arranged on the arc-shaped feed hopper, which is reliably fixed on the feed hopper by welding. When replacing, only the arc-shaped lining plate needs to be replaced, thereby prolonging the service life of the arc feed hopper, improving the convenience of maintenance, reducing the use cost of the equipment, and improving the competitive advantage of the equipment.

[0013] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the longitudinal section structure of a crusher feed hopper according to an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of a three-dimensional structure of a longitudinal section of a crusher feed hopper according to an embodiment of the utility model;

[0017] Figure 3The utility model is a schematic diagram of the overall three-dimensional structure of a crusher feed hopper according to an embodiment of the utility model. DETAILED DESCRIPTION

[0018] Refer to the following Figures 1 to 3 To describe the impact crusher feed hopper of an embodiment of the present utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0019] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0020] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0021] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0022] The embodiment of the utility model provides a feed hopper of an impact crusher, including a frame, a rotor is arranged in the frame, a plate hammer assembly is arranged on the rotor, and a plurality of impact frame assemblies are arranged on the top of the frame from top to bottom. The working area for crushing by the plate hammer assembly and the impact frame assembly is a crushing arc area. After passing through the crushing arc area, the finished material is discharged from the discharge port below. The structure of the impact crusher is not the focus of the embodiment of the utility model, so it is no longer described in the drawings.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, the embodiment of the utility model provides a feed hopper suitable for an impact crusher, including a bottom plate 2, a first side plate 1 and a second side plate 14, as shown in FIG. Figure 3 As shown in the figure, the first side plate 1 and the second side plate 14 are welded and fixed to the two end surfaces of the bottom plate 2 to form a bucket shape. The lower end of the bottom plate 2 is provided with a feed inlet flange 6 for fixing to the crusher frame, and the first side plate 1 and the second side plate 14 are provided with a fixing portion for connecting and fixing to the crusher frame. In this embodiment, the fixing plate with bolt holes is formed by bending. The bottom plate 2 is arc-shaped, and a plurality of mounting holes 13 are evenly arranged on the bottom plate 2. The back side of the bottom plate 2 is provided with a grid-type arrangement and ribs for improving the strength of the bottom plate, and the mounting holes 13 are arranged in the gap surrounded by the ribs and the bottom plate 2.

[0024] like Figure 1 and Figure 2 As shown in , in this embodiment, the first stopper 3 and the second stopper 5 are welded on the upper arc surface of the bottom plate 2. The first stopper 3 and the second stopper 5 are long strips of steel-based composite wear-resistant plates. The first stopper 3 and the second stopper 5 evenly divide the arc surface of the feed side of the bottom plate 2 into two parts. The first liner 15 and the second liner 4 are arc-shaped wear-resistant steel plates. The first liner 15 and the second liner 4 have the same bending radius as the bottom plate 2. The first liner 15 and the second liner 4 are welded and fixed to the bottom plate 2 from the back side of the bottom plate 2 through the mounting hole 13. The lower end face of the first liner 15 is in contact with the first stopper 3, and the lower end face of the second liner 4 is in contact with the second stopper 5. The first liner 15, the first stopper 3, the second liner 4 and the second stopper 5 are as shown in FIG. Figure 1One side of the base material shown in the figure is in a smooth arc transition. The purpose of setting a stopper under the liner is to make the force of the material on the liner finally act on the stopper when it falls, thereby improving the fixing firmness of the liner.

[0025] In order to better prevent the splashing of materials during the crushing process, Figure 1 As shown in the figure, the rear plate 7 and the top plate 9 are fixed to the upper right ends of the first side plate 1 and the second side plate 14, and the rear plate 7 and the top plate 9 are welded and fixed to the first side plate 1 and the second side plate 14 in an L shape, the upper ends of the top plate 9 and the bottom plate 2 form a feed port 11, and the lower end of the rear plate 7 and the lower end of the bottom plate 2 form a discharge port 12.

[0026] In order to enhance the effect of preventing material splashing, a curtain 10 and a plurality of evenly arranged hanging chains 8 are also provided on the top plate 9. The upper end of the curtain 10 is fixed to the protruding mounting portion on the left side of the top plate 9 by bolts, a reinforced rib is provided on the top plate 9, the upper ends of a plurality of hanging chains 8 are hung on the mounting column, the mounting column is set on the upper end surface of the top plate 9, and the top plate 9 is obviously provided with holes for the hanging chains 8 to pass through.

[0027] In the example of the use of two blocks and two liners in the embodiment of the present invention, the number of liners and blocks protected by the present invention is not limited to this. In other embodiments, more groups of blocks and liners can be used in combination. In an environment where multiple groups of blocks and liners are used in combination, the liners in different positions may be subject to different degrees of wear. Therefore, when replacing the liners, only the liners in the positions with greater wear need to be replaced, thereby further reducing replacement and maintenance costs.

[0028] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An impact crusher feed hopper, comprising a frame, a rotor arranged in the frame, a plate hammer assembly arranged on the rotor, a plurality of impact frame assemblies arranged from top to bottom on the top of the frame, the plate hammer assembly and the impact frame assembly cooperate in the crushing working area as the crushing arc area, after passing through the crushing arc area, the finished material is discharged from the lower discharge port, characterized in that: A feed hopper is arranged on the frame, and the feed hopper comprises a bottom plate and two side plates, the two side plates are fixed on the left and right sides of the bottom plate, and the two side plates and the bottom plate are connected to form a hopper shape; a feed port flange for fixing to the crusher frame is arranged at the lower end of the bottom plate, and a fixing portion for connecting and fixing to the crusher frame is arranged on the side plate; the bottom plate is arc-shaped, and a plurality of mounting holes are arranged on the bottom plate, and at least one arc-shaped lining plate is welded and fixed on the upper arc-shaped surface of the bottom plate, and the curvature of the lining plate is consistent with that of the bottom plate.

2. The impact crusher feed hopper according to claim 1, characterized in that: At least one stopper is welded and fixed on the bottom plate, and the stopper is in the shape of a long strip, dividing the upper arc surface of the bottom plate into several areas from top to bottom. The lower end of the lining plate is arranged in contact with the stopper to fix the position of the lining plate, and the arc surface of the lining plate and the end surface of the stopper contacting the material form a circular arc and a smooth transition.

3. The impact crusher feed hopper according to claim 1 or 2, characterized in that: The lower end surface of the bottom plate is provided with ribs arranged in a grid pattern for reinforcing the strength of the bottom plate, and the mounting holes are evenly arranged in the area enclosed by the ribs and the bottom plate.

4. The impact crusher feed hopper according to claim 3, characterized in that: It also includes a rear plate and a top plate for preventing material from splashing, the rear plate and the top plate are welded and fixed on the two side plates in an L shape, the rear plate and the top plate are located in the center direction of the arc surface of the bottom plate, the rear plate is placed vertically, and the top plate is placed horizontally, the top plate is welded and fixed to the upper end surface of the rear plate, the upper ends of the top plate and the bottom plate form a feed port, and the lower end of the rear plate and the lower end of the bottom plate form a discharge port.

5. The impact crusher feed hopper according to claim 4, characterized in that: A blocking curtain is arranged on the top plate in the vertical direction.

6. The impact crusher feed hopper according to claim 5, characterized in that: A plurality of hanging chains are evenly arranged between the curtain and the rear plate, and the upper ends of the hanging chains are fixed on the top plate.

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