Feeding blind plate

Abstract

The utility model belongs to the technical field of feeding blind plates, and particularly relates to a feeding blind plate which comprises a blind plate body and a plurality of tie bars, fixing portions are arranged on two sides of the blind plate body, and the tie bars are arranged in an open groove of the blind plate body at intervals in the direction parallel to a long wall plate of the blind plate body. Buffering grooves are formed between the adjacent tie bars and between the tie bars and the inner wall of the blind plate body, polyurethane buffering pads are arranged at the bottoms of the buffering grooves, and connecting bolts are connected to the polyurethane buffering pads and the blind plate body in a threaded mode. Materials filled in the buffer groove can be prevented from directly impacting the feeding blind plate, so that the service life of the feeding blind plate is prolonged, and the impact of the materials on the screen plate of the vibrating screen is reduced; due to the arrangement of the polyurethane buffering pad, the secondary buffering effect can be achieved; tie bars can be conveniently assembled and disassembled on the blind plate main body by screwing the connecting bolts, so that the working difficulty and the labor intensity of maintainers are greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of feeding blind plates, and in particular relates to a feeding blind plate. Background Art

[0002] Vibrating screens are widely used in coal and mineral processing industries. The feed blind plate is responsible for the transfer of materials in the vibrating screen. At present, the feed blind plate is mainly made of wear-resistant manganese steel plate and polyurethane material, for example, the feed blind plate is a 10mm thick manganese steel plate with polyurethane material. The current market feed blind plates have the following technical problems: First, the wear resistance of the feed blind plate is poor, which seriously affects the service life of the feed blind plate; second, the feed blind plate fails to buffer the incoming material. When the material impacts the feed blind plate, the material is instantly transferred to the screen plate of the vibrating screen, resulting in a short service life of the screen plate; third, the feed blind plate wears quickly and is not easy to replace, which increases the difficulty and labor intensity of maintenance personnel during maintenance and disassembly. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a feeding blind plate to solve the problems that the existing feeding blind plate has poor wear resistance and lacks buffering effect. When the material impacts the feeding blind plate, the material is instantly transferred to the screen plate of the vibrating screen, resulting in a shorter service life of the screen plate; thirdly, the feeding blind plate wears quickly and is not easy to replace, thereby increasing the difficulty and labor intensity of the maintenance personnel during maintenance and disassembly.

[0004] To achieve the above objectives, the utility model adopts the following technical solution: a feeding blind plate, comprising a blind plate body and tie rods, fixing parts are arranged on both sides of the blind plate body, the tie rods are multiple in number and are arranged in an open groove of the blind plate body at intervals in a direction parallel to the long wall plate of the blind plate body, buffer grooves are formed between adjacent tie rods and between the tie rods and the inner wall of the blind plate body, a polyurethane buffer pad is arranged at the bottom of the buffer groove, and connecting bolts are threadedly connected to the polyurethane buffer pad and the blind plate body.

[0005] The beneficial effects of the utility model are as follows: when the material falls, it first fills the buffer groove, and then slides to the discharge end, thus forming impact and friction between the materials, avoiding the direct impact of the material on the feeding blind plate, thereby extending the service life of the feeding blind plate; the setting of the polyurethane buffer pad will play a secondary buffering role to protect the blind plate body; the setting of the buffer groove greatly reduces the gravitational acceleration of the material, so that the speed of the material after feeding is smaller, reducing the impact of the incoming material on the vibrating screen plate, thereby extending the service life of the screen plate; the tie rod can be conveniently loaded and unloaded on the blind plate body by twisting the connecting bolts, which greatly reduces the work difficulty and labor intensity of maintenance personnel.

[0006] In order to ensure that the reinforcement can maintain the stability of the structure after being impacted by the material;

[0007] As a further improvement of the above technical solution: the tie rod is an isosceles triangular prism structure.

[0008] The beneficial effects of this improvement are: the top area of ​​the tie rod is small, which can effectively reduce the direct contact area with the falling material. The bottom surface of the tie rod with a larger area can ensure that after the tie rod is impacted by the material, the impact force is stably transmitted to the blind plate body, thereby ensuring the stability of the tie rod's own installation.

[0009] In order to ensure that the tie rod is stably installed on the blind plate body;

[0010] As a further improvement of the above technical solution: a bolt hole for threaded connection of a connecting bolt is provided on the blind plate body, and a threaded connection of a connecting bolt is provided on the polyurethane buffer pad, and the number of the connecting bolts is multiple.

[0011] The beneficial effect of this improvement is that a plurality of connecting bolts can stably connect the tie rod to the blind plate body, so that the tie rod provides stable support for the buffer groove.

[0012] In order to ensure that the tie rod is stably installed on the blind plate body;

[0013] As a further improvement of the above technical solution: a plurality of the connecting bolts are adjacent to each other front to back and left to right and staggered in pairs to form a group.

[0014] The beneficial effect of this improvement is that the connecting bolts staggered on the left and right can provide stable support on both sides of the reinforcement when the reinforcement is impacted.

[0015] In order to effectively reduce the impact of materials on the blind plate body through the materials accumulated in the buffer tank;

[0016] As a further improvement of the above technical solution: the tie rod is 20-40 mm higher than the upper edge of the wall panel of the blind plate body.

[0017] The beneficial effect of this improvement is that when the material is falling, the material accumulates in the buffer trough to form a buffer layer with a thickness of 20-40 mm, which prevents the material from directly impacting the feed blind plate, thereby extending the service life of the feed blind plate.

[0018] In order to make the polyurethane cushion play an effective cushioning role;

[0019] As a further improvement of the above technical solution: the edge of the polyurethane buffer pad is smoothly fitted to the inner wall of the buffer groove.

[0020] The beneficial effect of this improvement is that the polyurethane buffer pad filled in the buffer groove can play a secondary buffering role, absorb the potential energy of the material, and reduce the impact on the screen plate of the vibrating screen.

[0021] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional structural diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the blind plate main body in the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the polyurethane cushion in the utility model;

[0026] In the figure: 1. Blind plate body; 11. Bolt hole one; 2. Fixing part; 3. Tie rod; 31. Bolt hole two; 4. Polyurethane buffer pad; 5. Buffer groove; 6. Connecting bolt. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0028] Embodiment 1:

[0029] like Figure 1—4 shows: a feeding blind plate, comprising a blind plate body 1 and tie bars 3, the blind plate body 1 is provided with fixing parts 2 on both sides, the tie bars 3 are multiple in number and are arranged in an open groove of the blind plate body 1 in a direction parallel to the long wall plate of the blind plate body 1, and buffer grooves 5 are formed between adjacent tie bars 3 and the inner wall of the tie bars 3 and the blind plate body 1, and a polyurethane buffer pad 4 is provided at the bottom of the buffer groove 5, and a connecting bolt 6 is threadedly connected to the polyurethane buffer pad 4 and the blind plate body 1. When the material falls, it first fills the buffer groove 5 and then slides to the discharge end, thereby forming impact and friction between the materials. , avoiding direct impact of materials on the feeding blind plate, thereby extending the service life of the feeding blind plate; the setting of the polyurethane buffer pad 4 will play a secondary buffering role and protect the blind plate body 1; the setting of the buffer groove 5 greatly reduces the gravity acceleration of the material, so that the speed of the material after feeding is relatively small, reducing the impact of the incoming material on the vibrating screen plate, thereby extending the service life of the screen plate; the tie rod 3 can be conveniently loaded and unloaded on the blind plate body 1 by screwing the connecting bolt 6, greatly reducing the work difficulty and labor intensity of the maintenance personnel. The tie rod 3 is an isosceles triangular prism structure, and the top area of ​​the tie rod 3 is small, which can effectively reduce the direct impact with the falling material The direct contact area of ​​the connection, the larger bottom surface of the tie bar 3 can ensure that the tie bar 3 is stably transmitted to the blind plate body 1 after being impacted by the material, so as to ensure the stability of the installation of the tie bar 3 itself. The blind plate body 1 is provided with a bolt hole 11 for threaded connection of the connecting bolt 6, and the polyurethane buffer pad 4 is provided with a threaded connection of the connecting bolt 6 41. The number of the connecting bolts 6 is multiple, and the multiple connecting bolts 6 can stably connect the tie bar 3 with the blind plate body 1 as a whole, so that the tie bar 3 provides stable support for the buffer groove 5. The multiple connecting bolts 6 are adjacent to each other in front and back, staggered in pairs in the left and right, and arranged in groups of two. The right staggered connecting bolts 6 can provide stable support on both sides of the tie bar 3 when the tie bar 3 is impacted. The tie bar 3 is 20-40 mm higher than the upper edge of the wall panel of the blind plate body 1. When the material falls, the material accumulates in the buffer groove 5 to form a buffer layer with a thickness of 20-40 mm, which prevents the material from directly impacting the feeding blind plate, thereby extending the service life of the feeding blind plate. The edge of the polyurethane buffer pad 4 fits smoothly with the inner wall of the buffer groove 5. The polyurethane buffer pad 4 filled in the buffer groove 5 can play a secondary buffering role, absorb the potential energy of the material, and reduce the impact on the screen plate of the vibrating screen.

[0030] The working principle of the present technical solution is as follows: during the falling process of the material, the material accumulates on the working surface of the buffer groove 5 to form a buffer layer, so that the material will not directly form friction with the working surface of the blind plate body 1, thereby reducing the wear of the material on the working surface of the feeding blind plate, playing a good role in protecting the rigid blind plate and the screen plate, and extending the service life of the blind plate and the screen plate; in addition, the polyurethane buffer pad 4 not only plays a shock-absorbing role, but also can enhance the anti-smashing performance of the blind plate body 1; when the working surface of the blind plate body 1 is severely worn, the polyurethane buffer pad 4 filled in the groove will also play a secondary buffering role, so as not to cause the feeding blind plate to be completely worn out, so that the material enters the screen and affects the normal production; when the tie rod 3 needs to be replaced, the material in the buffer groove 5 on both sides of the corresponding tie rod 3 is cleaned, and the polyurethane buffer pad 4 is removed, and then the connecting bolt 6 is screwed out with a tool, and then the tie rod 3 can be removed from the blind plate body 1 for replacement.

[0031] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A feeding blind plate, characterized in that: The invention comprises a blind plate body (1) and tie bars (3), wherein fixing parts (2) are arranged on both sides of the blind plate body (1), the tie bars (3) are multiple in number and are arranged in an open groove of the blind plate body (1) at intervals in a direction parallel to the long wall plate of the blind plate body (1), and buffer grooves (5) are formed between adjacent tie bars (3) and between the tie bars (3) and the inner wall of the blind plate body (1), and a polyurethane buffer pad (4) is arranged at the bottom of the buffer groove (5), and a connecting bolt (6) is threadedly connected to the polyurethane buffer pad (4) and the blind plate body (1).

2. A material inlet blind plate according to claim 1, characterized in that: The tie rod (3) is an isosceles triangular prism structure.

3. A material feeding blind plate according to claim 1, characterized in that: The blind plate body (1) is provided with a bolt hole (11) for threaded connection with a connecting bolt (6), and the polyurethane cushion (4) is provided with a hole (41) for threaded connection with a connecting bolt (6), and the number of the connecting bolts (6) is plural.

4. A material feeding blind plate according to claim 1, characterized in that: The plurality of connecting bolts (6) are adjacent to each other front to back and staggered left to right to form a group of two at intervals.

5. The feed blind plate according to claim 1, characterized in that: The tie rod (3) is 20-40 mm higher than the upper edge of the wall plate of the blind plate body (1).

6. A material inlet blind plate according to claim 1, characterized in that: The edge of the polyurethane buffer pad (4) is flatly fitted to the inner wall of the buffer groove (5).

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