Adjustable sieve plate of ring hammer crusher

Abstract

The utility model discloses an adjustable sieve plate of a ring hammer crusher, and belongs to the field of crusher sieve plates. The problems that the crusher sieve plate is low in applicability and poor in performance are solved. According to the technical scheme, the screening device comprises a first screening plate and a plurality of second screening plates, first screening holes are formed in the first screening plate, second screening holes are formed in the second screening plates, the first screening holes correspond to the second screening holes one to one, the two ends of the first screening plate are each fixedly connected with an arc-shaped mounting plate, and an adjusting piece is arranged in each second screening plate in a penetrating mode; a guide column is arranged in each second sieve plate in a penetrating mode, the second sieve plates are in clearance fit with the guide columns, the adjusting pieces are parallel to the guide columns, the adjusting pieces and the guide columns are connected to the arc-shaped mounting plate, the adjusting pieces and the guide columns are matched with each other so that the multiple second sieve plates can be matched with the radian of the first sieve plate after being spliced, and fixing devices are arranged on the adjusting pieces. The fixing device is matched with the adjusting piece, and the relative position between the first sieve plate and the second sieve plate can be adjusted. The utility model is applied to the ring hammer crusher.

Description

Technical Field

[0001] The utility model provides an adjustable screen plate of a hammer crusher, belonging to the technical field of crusher screen plates. Background Art

[0002] Crusher equipment mainly includes jaw crusher, impact crusher, impact crusher, hammer crusher and cone crusher. The sieve hole size of the traditional hammer crusher is fixed, and only fixed particle size of crushed materials can be obtained. The particle size of the crushed materials cannot be adjusted according to actual needs, resulting in a single particle size of the crushed materials. When materials of different particle sizes are required, it is often necessary to replace the crusher or configure multiple crushers, which takes up a large production space and affects production efficiency.

[0003] A Chinese utility model patent (CN 217940336 U) discloses a novel crushing structure featuring multiple support plates fixedly connected between support rings. A sieve plate is positioned between each pair of adjacent support plates. Each sieve plate has a different sieve aperture diameter. By adjusting a rotating mechanism, the sieve plate with the desired aperture is moved above the discharge chamber to produce the desired crushed particles. However, its applicability is limited, and it can only produce a few fixed particle sizes.

[0004] Based on this, a Chinese utility model patent (CN 204892099 U) discloses an adjustable screen plate for a hammer crusher. The first and second screen plates, each with a semi-grid structure, are covered with mesh holes arranged in a grid pattern. The inner diameter of the second screen plate matches the outer diameter of the first plate and is longer than the first. Arc-shaped support rails are symmetrically welded to each end of the first screen plate. Slide rails matching the shape of the second screen plate are located within the support rails. Fixing plates are welded to the four corners of the second screen plate. These fixing plates have fixing holes. Fixing screws are inserted into the fixing holes to secure the second screen plate to the support rails. The actual size of the screen holes is determined by adjusting the overlap of the sieve holes between the two screen plates. However, the second screen plate is secured only by screws pressed against the support rails. As material continuously impacts the first screen plate, the screws can easily loosen, causing the second screen plate to misalign, affecting material screening. Furthermore, the overall structure of the device is not compact, with the fixing plates protruding from the support rails, which can easily cause installation difficulties. Utility Model Content

[0005] In order to solve the technical problems of low applicability and poor performance of the screen plate, the utility model proposes an adjustable screen plate for a hammer crusher. The purpose is to improve the hardware structure of the screen plate so as to achieve the adjustment of the size of the screen holes while ensuring the fixing effect of the screen plate, thereby enhancing the applicability and performance of the screen plate and improving the working efficiency of the screen plate.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: an adjustable screen plate of a hammer crusher, comprising a first screen plate with an arc structure and a plurality of second screen plates with an arc structure, wherein the first screen plate is provided with first screen holes, and the second screen plate is provided with second screen holes, and the first screen holes correspond to the second screen holes one by one;

[0007] An arc-shaped mounting plate is fixedly connected to each end of the first sieve plate, and an adjustable gap is left between the arc-shaped mounting plate and the edge of the second sieve plate;

[0008] At least one adjusting member is provided in each second sieve plate, at least one guide column is provided in each second sieve plate, the second sieve plate and the guide column are clearance-matched, and the adjusting member and the guide column are parallel to each other;

[0009] The adjusting member and the guide column are both connected to the arc-shaped mounting plate, and the adjusting member and the guide column cooperate with each other to make the curvature of the plurality of second sieve plates after splicing fit with the curvature of the first sieve plate;

[0010] The adjusting member is provided with a fixing device, and the fixing device cooperates with the adjusting member to adjust the relative position between the first sieve plate and the second sieve plate.

[0011] Furthermore, the axes of the adjusting member, the guide column and the second screen plate are parallel to each other.

[0012] Furthermore, an adjusting member and a guide column are inserted into a second sieve plate, and the adjusting member and the guide column are respectively located at two ends of the second sieve plate.

[0013] Furthermore, the inner diameter of the second sieve plate matches the outer diameter of the first sieve plate.

[0014] Furthermore, the length of the second sieve plate along the axial direction is smaller than the length of the first sieve plate along the axial direction.

[0015] Furthermore, the adjusting member is threadably engaged with the second sieve plate.

[0016] Furthermore, the first sieve plate and the second sieve plate are coaxially arranged.

[0017] Furthermore, the adjusting member is a screw.

[0018] Furthermore, the first sieve hole and the second sieve hole have the same shape and size.

[0019] Furthermore, the fixing device is a screw head.

[0020] The beneficial effects of the present invention compared to the prior art are as follows:

[0021] 1. The adjusting member and guide column of the utility model are both provided through the second sieve plate and connected to the arc-shaped mounting plate fixed to the first sieve plate. By operating the adjusting member, the second sieve plate can be moved along the guide column, so that the first sieve hole and the second sieve hole are misaligned, the size of the discharge sieve hole is adjusted, and the size of the material particles is controlled; thus, the applicable range of the sieve plate is expanded and the working efficiency of material screening is improved;

[0022] 2. The fixing device of the utility model is arranged on the adjusting member. When the material continuously impacts the first screen plate, the fixing device will not loosen easily, thereby preventing the second screen plate from being dislocated during the crushing process and affecting the screening of the material, thereby improving the performance of the screen plate;

[0023] 3. When assembling the adjustable screen plate of the present invention, it is only necessary to fix the arc-shaped mounting plates to both ends of the first screen plate, pass the adjusting piece and the guide column through the second screen plate and then connect them to the arc-shaped mounting plates. The structure is simple and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0027] Figure 3 This is a schematic structural diagram of the first screen plate of the present invention;

[0028] In the figure: 1 is the first sieve plate, 2 is the arc-shaped mounting plate, 3 is the adjusting member, 4 is the fixing device, 5 is the second sieve plate, 6 is the first sieve hole, 7 is the second sieve hole, 8 is the guide column, and 9 is the guide hole. DETAILED DESCRIPTION

[0029] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0030] like Figures 1 to 3As shown, the utility model provides an adjustable screen plate of a hammer crusher, comprising a first screen plate 1 with an arc structure and several second screen plates 5 with an arc structure. In this embodiment, two second screen plates 5 are provided. The first screen plate 1 and the second screen plate 5 are coaxially arranged. The relative positions of the first screen plate 1 and the second screen plate 5 can be set by those skilled in the art as needed. In this embodiment, the inner diameter of the second screen plate 5 is preferably matched with the outer diameter of the first screen plate 1. A first sieve hole 6 is provided on the first sieve plate 1, and a second sieve hole 7 is provided on the second sieve plate 5. The first sieve hole 6 corresponds to the second sieve hole 7 one-to-one. Specifically, the shape and size of the first sieve hole 6 and the second sieve hole 7 are the same. In this field, the shape and size of the first sieve hole 6 and the second sieve hole 7 can also be adaptively adjusted to ensure that the first sieve hole 6 and the second sieve hole 7 cooperate with each other to adjust the shape and size of the discharge sieve hole.

[0031] An arc-shaped mounting plate 2 is fixedly connected to each of the left and right ends of the first sieve plate 1. The curvature of the arc-shaped mounting plate 2 matches the first sieve plate 1 and the second sieve plate 5. An adjustable gap is left between the edges of the arc-shaped mounting plate 2 and the second sieve plate 5. Preferably, the length of the second sieve plate 5 along the axial direction is smaller than the length of the first sieve plate 1 along the axial direction.

[0032] At least one adjusting member 3 is provided in each second sieve plate 5, and at least one guide post 8 is provided in each second sieve plate 5. The second sieve plate 5 and the guide post 8 are clearance-matched. The adjusting member 3 and the guide post 8 are parallel to each other. Specifically, the guide post 8 passes through the guide hole 9 provided on the second sieve plate 5, and the guide hole 9 and the guide post 8 are clearance-matched. The adjusting member 3 and the guide post 8 are both connected to the arc-shaped mounting plate 2. The adjusting member 3 and the guide post 8 cooperate with each other to enable the curvature of multiple second sieve plates 5 to be adapted to the first sieve plate 1 after splicing. Preferably, the axes of the adjusting member 3, the guide post 8 and the second sieve plate 5 are arranged parallel to each other. In this embodiment, an adjusting member 3 and a guide post 8 are provided in a second sieve plate 5, and the adjusting member 3 and the guide post 8 are respectively located at the two ends of the second sieve plate 5, and the two ends of the adjusting member 3 are respectively movably connected to the two arc-shaped mounting plates 2, and the two ends of the guide post 8 are respectively fixedly connected to the two arc-shaped mounting plates 2. Specifically, the adjusting member 3 is a screw that is threadedly engaged with the second sieve plate 5. By adjusting the screw, the second sieve plate 5 can be relatively displaced. Those skilled in the art may also make adaptive adjustments to the structure of the adjusting member 3, as long as the adjusting member 3 can adjust the relative displacement of the second sieve plate 5. Those skilled in the art may also make adaptive adjustments to the positioning of the adjusting member 3 and the guide post 8, as long as the first sieve aperture 6 and the second sieve aperture 7 are relatively misaligned when the second sieve plate 5 is displaced along the adjusting member 3 and the guide post 8, thereby adjusting the shape and size of the discharge sieve aperture.

[0033] The adjusting member 3 is fixedly connected to a fixing device 4, which cooperates with the adjusting member 3 to adjust the relative position between the first sieve plate 1 and the second sieve plate 5 and fix the first sieve plate 1 and the second sieve plate 5. Specifically, the adjusting member 3 is fixedly connected to the fixing device 4 near the arc-shaped mounting plate 2, and the fixing device 4 is a screw head.

[0034] The working principle of this utility model:

[0035] In the initial state of the adjustable sieve plate of the present invention, the first sieve holes 6 and the second sieve holes 7 are aligned one by one, and the aperture size of the discharge sieve hole is the size of the smallest sieve hole among the first sieve holes 6 and the second sieve holes 7. If the aperture sizes of the first sieve holes 6 and the second sieve holes 7 are the same, the aperture size of the discharge sieve hole is the aperture size of the first sieve holes 6 or the second sieve holes 7. By adjusting the fixing device 4, the adjusting member 3 drives the second sieve plate 5 to move along the guide column 8. At this time, the second sieve holes 7 and the first sieve holes 6 are misaligned, thereby achieving the adjustment of the size of the discharge sieve hole. Therefore, when the material is crushed, the particle size of the crushed material can be adjusted according to the actual needs of the user, thereby facilitating subsequent processing and use.

[0036] Regarding the specific structure of the present invention, it should be noted that the connection relationship between the various component modules adopted in the present invention is definite and feasible. Except for the special instructions in the embodiments, the specific connection relationship can bring about corresponding technical effects and solve the technical problems raised by the present invention without relying on the execution of the corresponding software program. The components, modules, models of specific components appearing in the present invention, the connection methods between each other, and the conventional usage methods and expected technical effects brought about by the above-mentioned technical features, except for the specific instructions, all belong to the disclosed contents in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by technical personnel in this field before the application date, or belong to the existing technologies such as conventional technology and common knowledge in this field, and there is no need to elaborate, so that the technical solution provided in this case is clear, complete, and feasible, and the corresponding physical products can be reproduced or obtained based on this technical means.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable screen plate for a hammer crusher, characterized by: It comprises a first sieve plate (1) with an arc structure and a plurality of second sieve plates (5) with an arc structure, wherein the first sieve plate (1) is provided with a first sieve hole (6), and the second sieve plate (5) is provided with a second sieve hole (7), and the first sieve hole (6) corresponds to the second sieve hole (7) in a one-to-one manner; An arc-shaped mounting plate (2) is fixedly connected to each of the two ends of the first sieve plate (1), and an adjustable gap is left between the arc-shaped mounting plate (2) and the edge of the second sieve plate (5); At least one adjusting member (3) is provided in each second sieve plate (5), at least one guide column (8) is provided in each second sieve plate (5), the second sieve plate (5) and the guide column (8) are clearance-matched, and the adjusting member (3) and the guide column (8) are parallel to each other; The adjusting member (3) and the guide column (8) are both connected to the arc-shaped mounting plate (2). The adjusting member (3) and the guide column (8) cooperate with each other to enable the plurality of second sieve plates (5) to be spliced ​​together to match the curvature of the first sieve plate (1); The adjusting member (3) is provided with a fixing device (4), and the fixing device (4) cooperates with the adjusting member (3) to adjust the relative position between the first sieve plate (1) and the second sieve plate (5).

2. The adjustable screen plate of a hammer crusher according to claim 1, characterized in that: The axes of the adjusting member (3), the guide column (8) and the second screen plate (5) are parallel to each other.

3. The adjustable screen plate of a hammer crusher according to claim 1, characterized in that: An adjusting member (3) and a guide column (8) are inserted into a second sieve plate (5), and the adjusting member (3) and the guide column (8) are respectively located at two ends of the second sieve plate (5).

4. The adjustable screen plate of a hammer crusher according to claim 1, characterized in that: The inner diameter of the second sieve plate (5) matches the outer diameter of the first sieve plate (1).

5. The adjustable screen plate of a hammer crusher according to claim 1, characterized in that: The length of the second screen plate (5) along the axial direction is smaller than the length of the first screen plate (1) along the axial direction.

6. The adjustable screen plate of a hammer crusher according to claim 1, characterized in that: The adjusting member (3) is threadably engaged with the second sieve plate (5).

7. The adjustable screen plate of a hammer crusher according to claim 1, characterized in that: The first sieve plate (1) and the second sieve plate (5) are coaxially arranged.

8. The adjustable screen plate of a hammer crusher according to claim 1, characterized in that: The adjusting member (3) is a screw.

9. The adjustable screen plate of a hammer crusher according to claim 1, characterized in that: The first sieve hole (6) and the second sieve hole (7) have the same shape and size.

10. The adjustable screen plate of a hammer crusher according to claim 1, characterized in that: The fixing device (4) is a screw head.

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