Anti-falling device for blind plate in front of vibrating screen

Abstract

An anti-falling device for a blind plate in front of a vibrating screen belongs to the technical field of coal devices, can solve the problem that the blind plate falls off along with continuous vibration operation of the existing blind plate in front of the vibrating screen, and comprises a rail seat, blind plates are arranged on two sides of the rail seat, a pressing plate is arranged at the top end of each blind plate, and a first connecting plate is arranged between each pressing plate and the corresponding blind plate. One end of the first connecting plate is vertically connected with a second connecting plate, the second connecting plate is adjacent to the side face of the rail base, a first fixing hole is formed in the surface of the pressing plate, a second fixing hole corresponding to the first fixing hole is formed in the surface of the first connecting plate, and fastening bolts are arranged in the first fixing hole and the second fixing hole in a penetrating mode. The pressing plate, the first connecting plate and the rail base are connected into a whole through fastening bolts. The connecting plate is additionally arranged under the pressing plate, so that the blind plate of the vibrating screen can be prevented from loosening and falling off, the working failure rate of the vibrating screen is reduced, and the operation working efficiency of a screening machine is improved.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining equipment technology, specifically relating to a device for preventing the blind plate of a vibrating screen from falling off. Background Technology

[0002] Vibrating screens are currently the most widely used screening machinery in many industrial sectors. In coal preparation plants, vibrating screens are essentially the primary equipment used in screening, dewatering, desliming, and demediuming processes. In the coal industry, vibrating screens are the most widely used grading, dewatering, demediuming, and desliming equipment, and are also a key screening device. The quality and efficiency of their grading and dewatering effects, as well as the screening capacity, directly affect the quality and efficiency of coal preparation. In coal processing, screening technology and separation technology are equally important. Therefore, the stability of vibrating screens in actual operation is a necessary condition for ensuring effective screening and washing, and has significant practical implications for my country's coal industry.

[0003] A vibrating screen is mainly composed of a support device, a screen box, a motor, and a vibrator. The motor drives the vibrator to rotate through a connecting part, and the screen box vibrates due to centrifugal inertial force. The vibration process is also a process of washing and processing materials. However, the continuous operation of the vibrating screen can also cause considerable safety hazards to the vibrating screen itself.

[0004] The screen plate in a vibrating screen is an important component and also one of the parts that is prone to loosening and falling off. In actual production operations, the screen plate and blind plate in front of the screen are fixed by the pressure rail. During the operation of the vibrating screen, due to the aging, deformation, wear and vibration of the parts, there is a large gap between the rail seat and the blind plate. With continuous vibration operation, even adding pads cannot completely prevent the blind plate from falling off, causing accidents such as the screen machine not working and the under-screen hopper being blocked, which affects the operation of the entire coal washing system. Utility Model Content

[0005] In view of the problem that the blind plate in front of the screen of the existing vibrating screen falls off due to continuous vibration operation, this utility model provides a device to prevent the blind plate in front of the screen of the vibrating screen from falling off.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A device for preventing the blind plate of a vibrating screen from falling off includes a rail base, blind plates on both sides of the rail base, a pressure plate at the top of the blind plates, a connecting plate 1 between the pressure plate and the blind plates, a connecting plate 2 perpendicularly connected to one end of the connecting plate 1, the connecting plate 2 being adjacent to the side of the rail base, a fixing hole 1 on the surface of the pressure plate, a fixing hole 2 corresponding to the fixing hole 1 on the surface of the connecting plate 1, fastening bolts passing through the fixing holes 1 and 2, and the pressure plate, the connecting plate 1, and the rail base being connected as a whole by fastening bolts.

[0008] Furthermore, the connecting plate has the same length as the pressure plate.

[0009] Furthermore, the vertical center axis of the second connecting plate is on the same straight line as the vertical center axis of the rail base.

[0010] Furthermore, the bottom of the second connecting plate is flush with the bottom of the rail base.

[0011] Furthermore, the central axes of the pressure plate, the connecting plate, and the rail base are located on the same straight line.

[0012] Furthermore, there are two of each of the fixing holes.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention, by adding a connecting plate directly below the pressure plate, prevents the blind plate of the vibrating screen from loosening and falling off, reduces the failure rate of the vibrating screen, improves the operating efficiency of the screening machine, and avoids any side effects that would affect the operation of the screening machine, nor would it affect the screening efficiency and effect. It effectively improves the working efficiency and stability of the equipment and avoids more potential mechanical problems. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Wherein: 1-rail base; 2-pressure plate; 3-connecting plate one; 4-connecting plate two; 5-fixing hole one; 6-fixing hole two. Detailed Implementation

[0017] The present invention will be further described with reference to the accompanying drawings.

[0018] As shown in the figure, a device for preventing the blind plate of a vibrating screen from falling off includes a rail base 1. Blind plates are provided on both sides of the rail base 1. A pressure plate 2 is provided at the top of the blind plate. A connecting plate 3 is provided between the pressure plate 2 and the blind plate. A connecting plate 4 is vertically connected to one end of the connecting plate 3. The connecting plate 4 is adjacent to the side of the rail base 1. The surface of the pressure plate 2 is provided with a fixing hole 5. The surface of the connecting plate 3 is provided with a fixing hole 6 corresponding to the fixing hole 5. Fastening bolts are inserted into the fixing holes 5 and 6. The pressure plate 2, the connecting plate 3, and the rail base 1 are connected as a whole by fastening bolts.

[0019] Furthermore, the connecting plate 3 has the same length as the pressure plate 2.

[0020] Furthermore, the vertical center axis of the connecting plate 4 is on the same straight line as the vertical center axis of the rail base 1.

[0021] Furthermore, the bottom of the connecting plate 4 is flush with the bottom of the rail base 1.

[0022] Furthermore, the central axes of the pressure plate, connecting plate 3, and rail base 1 are located on the same straight line.

[0023] Furthermore, there are two of each of the fixing holes 5 and 6.

[0024] The connecting plate 3 and connecting plate 4 of this utility model are made of two iron plates of the same width but different lengths, which are vertically welded and installed between the rail base and the pressure plate. Under the joint action of the pressure plate, connecting plate 1 and connecting plate 2, the blind plate is fastened, and the blind plate is eliminated without affecting the normal operation of the screen.

[0025] This utility model reinforces the blind plate's fixing method with a safety buckle by adding a baffle consisting of a connecting plate 3 and a connecting plate 4, both with fixing holes 6. This prevents the blind plate from loosening or shifting and slipping during screen vibration, protecting it from the risk of falling from all directions and significantly reducing the possibility of it falling. Furthermore, this fixing method does not add to the screen's maintenance procedures, maximizing its working efficiency, improving operational stability, and significantly reducing the rate of electromechanical accidents. It also increases the safety factor, reduces employee workload, meets safety and quality standardization requirements, and is worthy of widespread application.

Claims

1. A device for preventing the blind plate of a vibrating screen from falling off, comprising a rail base (1), wherein blind plates are provided on both sides of the rail base (1), and a pressure plate (2) is provided at the top of the blind plate, characterized in that: A connecting plate 1 (3) is provided between the pressure plate (2) and the blind plate. A connecting plate 2 (4) is vertically connected to one end of the connecting plate 1 (3). The connecting plate 2 (4) is adjacent to the side of the rail seat (1). A fixing hole 1 (5) is provided on the surface of the pressure plate (2). A fixing hole 2 (6) corresponding to the fixing hole 1 (5) is provided on the surface of the connecting plate 1 (3). Fastening bolts are inserted in the fixing hole 1 (5) and the fixing hole 2 (6). The pressure plate (2), the connecting plate 1 (3), and the rail seat (1) are connected as one unit by fastening bolts.

2. The device for preventing the blind plate of a vibrating screen from falling off according to claim 1, characterized in that: The connecting plate (3) has the same length as the pressure plate (2).

3. The device for preventing the blind plate of a vibrating screen from falling off according to claim 1, characterized in that: The vertical center axis of the connecting plate 2 (4) and the vertical center axis of the rail base (1) are on the same straight line.

4. The device for preventing the blind plate of a vibrating screen from falling off according to claim 1, characterized in that: The bottom of the connecting plate 2 (4) is flush with the bottom of the rail base (1).

5. The device for preventing the blind plate of a vibrating screen from falling off according to claim 1, characterized in that: The central axes of the pressure plate, connecting plate (3) and rail base (1) are located on the same straight line.

6. The device for preventing the blind plate of a vibrating screen from falling off according to claim 1, characterized in that: The number of fixing holes one (5) and fixing holes two (6) is two.

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