CN105127092A - Standard rail seat type elastic rod sieve plate - Google Patents

Abstract

The present invention discloses a standard rail seat type elastic rod screen plate, comprising a rail seat and an elastic screen surface, wherein the elastic screen surface comprises a screen frame, an elastic support body and a screen rod, wherein the elastic support body is fixed in the containing body of the screen frame, and both ends of the screen rod are fixed in the elastic support body, and the elastic screen surface and the rail seat are connected by a snap device. The elastic support body of the present invention can make the screen rod in a resonant state during the operation of the vibrating screen, thereby improving the vibration intensity of the screen surface, and the self-rotation and axial movement of the screen rod itself can well solve the problems of material stacking, adhesion and hole blocking, thereby improving the screening efficiency of the vibrating screen; the rail seat and the elastic screen surface are connected by a snap device, which has a compact structure, is easy to install and disassemble, has strong practicality, and reduces the labor intensity of workers; the standard rail seat type elastic rod screen plate of the present invention adopts a modular design, which is conducive to large-scale production and market promotion.

Description

A standard rail seat type elastic rod sieve plate

technical field

The invention relates to the field of vibrating screening machinery, in particular to a standard rail seat type elastic rod sieve plate, which is suitable for various large vibrating screens or vibrating screens for screening viscous and wet materials.

Background technique

An ideal material is sieved under normal conditions, and its sieving efficiency is generally required to reach 96%, that is to say, 96% of the particles with a particle size smaller than the specified sieving size pass through the sieve holes on the sieve surface. However, since the vibrating screen realizes material screening through the vibration of the screen surface, there are the following problems in the screening process: Considering the influence of factors such as the stiffness and strength of the screen body itself, the vibration intensity is generally kept at a low interval (3～ 5g), the traditional sieve plate only moves with the sieve body as a rigid body, and has no additional movement itself. At the same time, because of the uneven material and uneven humidity of the material, these reasons will affect the rapid layering and sieving of the material, and even cause piles. The problem of material and hole plugging seriously affects the screening efficiency. Therefore, it has always been an urgent problem for the development of my country's coal preparation technology level and large-scale industrial production to solve the problem of plugging holes and stockpiling due to the small vibration intensity of the screen and the single movement mode of the screen surface.

Especially for the screening of raw coal in coal washing plants. Because during the coal mining process, the external moisture of the raw coal is more than 7% due to water seepage in the coal seam, dust-proof water spraying in the mine, etc. In addition, the coal particles are small, the specific surface area is large, and it is easy to adhere to water, which is easy to cause blockage. The problems of holes and stacking make the screening effect worse. Once the vibrating screen in the coal washing plant is stacked or blocked, the coal lifting, transportation and screening operations must be stopped, which will seriously affect the transportation and coal preparation operations of the coal mine and cause serious economic losses.

To solve this problem, scholars at home and abroad have proposed various solutions. By increasing the vibration strength of the sieve plate, it puts forward high requirements on the structural strength of the sieve body, resulting in high production cost of the screening equipment; using a chain or ball cleaning device, although the cleaning of the screen surface can be completed to a certain extent , but it is easy to cause chain wear and tear and frequent drop of the ball disc, resulting in the danger of downtime.

Contents of the invention

Purpose of the invention: The purpose of the invention is to address the deficiencies of the prior art and provide a standard rail-mounted elastic rod sieve plate with a compact structure, convenient installation and good marketability, so as to solve the problem of material stacking, bonding and hole plugging to improve the screening efficiency of the vibrating screen.

In order to achieve the above object, the present invention adopts the following technical solution: a standard rail seat type elastic bar screen plate, including a rail seat and an elastic screen surface, and the elastic screen surface includes a screen frame, an elastic support body and a screen rod. The elastic supporting body is fixed in the containing body of the screen frame, the two ends of the screen rod are fixed in the elastic supporting body, and the elastic screen surface and the rail seat are connected by a buckle device.

Further, the screen frame includes a containing body, a first baffle plate, a second baffle plate, a connecting plate and buckles, the containing body is arranged at both ends of the connecting plate, and the containing body includes a strip-shaped plate and a The end panels at both ends of the board, the end panels are fixed with the connection plate, the first groove is set on one side of the end panel, the second baffle is fixed on the side of the strip plate away from the first groove, and the buckle is fixed on the bottom of the strip plate The side of the elastic support body in contact with the second baffle is provided with a number of installation holes, the two ends of the screen rod are inserted into the installation holes and fixed, and the other side of the elastic support body is provided with a second groove corresponding to the first groove. Two grooves, the first baffle plate is fixed in the first groove and the second groove; the rail seat is provided with a locking groove, and the locking groove and the buckle form a locking device.

Further, the material of the elastic supporting body is polyurethane, and the elastic supporting body and the containing body are interference fit.

Further, the diameter of the sieve rod is 0.5-2 mm smaller than the diameter of the installation hole, there is a gap of 2-5 mm between the two ends of the sieve rod and the bottom of the installation hole, and the material of the sieve rod is spring steel.

Further, the surface of the screen rod is coated with polyurethane.

Further, the rail seat is cast from metal plates and polyurethane materials.

Further, the rail seat is connected with the rail seat angle steel of the vibrating screen through bolts.

Further, the outer dimension of the elastic rod sieve plate is 610x610mm.

Beneficial effects: (1) The modularized design of the standard rail seat type elastic bar screen plate of the present invention is beneficial to large-scale production and market promotion; (2) The rail seat and the elastic screen surface are connected by a buckle device, which is compact in structure and easy to install and disassemble It is convenient and practical, and reduces the labor intensity of workers; (3) The screen rod is made of high-quality spring steel, which has better mechanical properties and anti-ballistic properties than ordinary carbon steel, and has a long service life; (4) The outer surface of the screen rod is covered with polyurethane to prevent coal water from corroding the screen rod; (5) The elastic support body and the containment body adopt an interference fit, and are fixed by the first baffle and the second baffle, which can effectively prevent the elastic support body from Axial movement occurs in the container, which effectively protects the side plate of the vibrating screen; (6) The elastic support body is made of polyurethane material. When the coal block and the screen rod collide, it can play the role of vibration isolation and noise reduction, reducing Small damage to the screen body due to the impact force of the material; (7) The elastic support can make the screen rod in a resonance state during the working process of the vibrating screen, which improves the vibration intensity of the screen surface, plus the rotation of the screen rod itself and the axial direction It solves the problems of material stacking, bonding and hole blocking, and improves the screening efficiency of the vibrating screen; (8) The external dimension of the present invention is 610×610mm, which is commonly used in the market, and the coal washing plant can Use without updating the shaker.

Description of drawings

Fig. 1 is the overall structure axonometric drawing of the present invention;

Fig. 2 is the structural representation of screen frame of the present invention;

Fig. 3 is a schematic diagram of the structure in the direction of Fig. 2A-A;

Fig. 4 is the installation schematic diagram of sieve rod of the present invention;

Fig. 5 is a schematic diagram of the structure in the direction of Fig. 4A-A;

Fig. 6 is a schematic diagram of the structure of the rail seat of the present invention.

In the figure: 1-rail seat; 2-elastic screen surface; 110-card slot; 120-through hole; 210-screen frame; 220-elastic support body; 230-screen rod; 211-inclusion body; 213-buckle; 214-second baffle; 215-first baffle; 216-first groove; 221-installation hole; 222-second groove; 211-1-strip plate; 211-2- end panels.

Detailed ways:

The present invention will be further explained below in conjunction with the accompanying drawings.

As shown in Figure 1, the standard rail seat type elastic rod sieve plate of the present invention has an external dimension of 610x610mm, which is suitable for large-scale production and market promotion, and it includes a rail seat 1 and an elastic screen surface 2, and the elastic screen surface 2 includes Screen frame 210, elastic support body 220 and screen rod 230, the elastic support body 220 is fixed in the containing body 211 of the screen frame 210, the two ends of the screen rod 230 are fixed in the elastic support body 220, the elastic screen surface 2 and the rail seat 1 is connected by snap-fit device.

As shown in Figures 2 to 6, the screen frame 210 includes a containing body 211, a first baffle plate 215, a second baffle plate 214, a connecting plate 212 and a buckle 213, and the containing body 211 is arranged on both sides of the connecting plate 212. end, the containing body 211 includes two strip plates 211-1 and two end panels 211-2 arranged at both ends of the strip plate 211-1, the strip plates 211-1 and the end panels 211-2 are metal plates, The four metal plates are fixed together by welding to form the containing body 211 . The end panel 211-2 is welded and fixed to the connection plate 212, and the side of the end panel 211-2 is provided with a first groove 216 matching the first baffle 215, and the second baffle 214 is fixed on the strip plate 211-1 away from On one side of the first groove 216 , the buckle 213 is fixed on the bottom of the strip plate 211 - 1 to form the screen frame 210 . The side where the elastic support body 220 is in contact with the second baffle plate 214 is provided with a number of mounting holes 221, and the two ends of the screen rod 230 are inserted into the mounting holes 221 for fixing. The hole spacing, hole depth and aperture of the mounting holes 221 are based on The vibrating screen depends on the specific working conditions. The position corresponding to the first groove 216 on the other side of the elastic support body 220 is provided with a second groove 222 matched with the first baffle 215, and the first baffle 215 is fixed in the first groove 216 and the second In the groove 222. The rail base 1 is provided with a slot 110, the slot 110 and the buckle 213 form a buckle device, the rail base 1 is provided with a number of through holes 120, and the rail base 1 is connected to the rail base angle steel of the vibrating screen through bolts .

During installation, the second baffle plate 214 is first welded on the strip plate 211-1 of the containment body 211. It should be ensured that the normal operation of the screen bar 230 will not be hindered after being welded and fixed on the containment body 211, and then the elastic support body 220 is installed. into the containing body 211, then fix the first baffle plate 215 in the first groove 216 and the second groove 222, fix the elastic support body 220, and then insert the two ends of the screen rod 230 into the installation hole 221 and fix it, Finally, the end panels 211 - 2 of the two containing bodies 211 are respectively welded and fixed to both ends of the connecting plate 212 , and the connecting plate 212 is used to weld and fix the two containing bodies 211 together. After the above welding is completed, stress relief annealing should be carried out to ensure the verticality and parallelism between the components after correction.

In this embodiment, the elastic support body 220 is molded with polyurethane material to meet the condition that the elastic support body 220 is in a resonant state when the screen bar 230 is working in the vibrating screen, and its external dimensions should ensure that the assembly with the containment body 211 is too tight. The elastic support body 230 can effectively prevent the axial movement of the elastic support body 230 in the containing body 211 and effectively protect the side plates of the vibrating screen; the elastic support body 220 is made of polyurethane Material, when the coal block and the screen rod collide, it can play the role of vibration isolation and noise reduction, and reduce the damage to the screen body due to the impact force of the material. The diameter of the sieve rod 230 is 0.5-2 mm smaller than the diameter of the installation hole 221, and there is a gap of 2-5 mm between the two ends of the sieve rod 230 and the bottom of the installation hole 221. It can rotate and move axially. In addition, polyurethane material is coated on the surface of the screen rod 230 to prevent coal water from corroding the screen rod. The rail seat 1 is made of metal plate and polyurethane material, which can make it reach a certain rigidity and strength, so that the rail seat 1 will not be deformed during the working process of the vibrating screen, and its through hole 120 is processed according to specific working conditions , so as to facilitate the installation of bolts, the shape of the slot 110 matches the buckle 213 .

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (8)

1. a standard gauge A seating elastic rod sieve plate, comprise rail chair (1) and elastic screen surface (2), it is characterized in that: described elastic screen surface (2) comprises screen frame (210), elastic support (220) and sieve bar (230), described elastic support body (220) is fixed in the inclusion body (211) of screen frame (210), sieve bar (230) two ends are fixed in elastic support (220), and elastic screen surface (2) is connected by bayonet unit with rail chair (1).

2. a kind of standard gauge A seating elastic rod sieve plate according to claim 1, it is characterized in that: described in comprise screen frame (210) and comprise inclusion body (211), first baffle plate (215), second baffle (214), connecting plate (212) and buckle (213), described inclusion body (211) is arranged on connecting plate (212) two ends, inclusion body (211) comprises stripe board (211-1) and is arranged on the end plates (211-2) at stripe board (211-1) two ends, end plates (211-2) are fixed with connecting plate (212), end plates (211-2) side is provided with the first groove (216), second baffle (214) is fixed on the side of stripe board (211-1) away from the first groove (216), buckle (213) is fixed on stripe board (211-1) bottom, the side that described elastic support (220) contacts with second baffle (214) is provided with some installing holes (221), installing hole (221) internal fixtion is inserted at sieve bar (230) two ends, elastic support (220) the opposite side position corresponding with the first groove (216) is provided with the second groove (222), and the first baffle plate (215) is fixed in the first groove (216) and in the second groove (222), described rail chair (1) is provided with draw-in groove (110), and draw-in groove (110) and buckle (213) form bayonet unit.

3. a kind of standard gauge A seating elastic rod sieve plate according to claim 2, is characterized in that: described elastic support body (220) material is polyurethane, and elastic support body (220) and inclusion body (211) are interference fit.

4. a kind of standard gauge A seating elastic rod sieve plate according to claim 2, it is characterized in that: described sieve bar (230) diameter is less than installing hole (221) aperture 0.5 ~ 2mm, 2 ~ 5mm space is left in sieve bar (230) two ends and installing hole (221) bottom, and the material of sieve bar (230) is spring steel.

5. a kind of standard gauge A seating elastic rod sieve plate according to claim 4, is characterized in that: described sieve bar (230) Surface coating polyurethane.

6. a kind of standard gauge A seating elastic rod sieve plate according to claim 2, is characterized in that: described rail chair (1) is built by metallic plate and polyurethane material and formed.

7. a kind of standard gauge A seating elastic rod sieve plate according to claim 1, is characterized in that: described rail chair (1) is by the rail chair Bolted angle connection of bolt and vibratory sieve.

8. a kind of standard gauge A seating elastic rod sieve plate according to claim 1, is characterized in that: the appearance and size of this elastic rod sieve plate is 610x610mm.