Screen box structure of gravel aggregate vibrating screen

Abstract

The utility model discloses a sand aggregate vibrating screen box structure, and relates to the technical field of aggregate production. The device comprises an outer box, an inner box, fixing plates, L-shaped fixing frames and a flexible frame, the two ends and the top of the outer box are open, a plurality of cushioning strips are fixed to the inner wall of the outer box at equal intervals, the inner box is arranged in the outer box, the cushioning strips are fixed to the outer side of the inner box, the fixing plates are fixed to the two sides of the inner wall of the inner box, and the L-shaped fixing frames are fixed to the fixing plates. A plurality of equidistant dampers are fixed to the tops of the L-shaped fixing frames along the center lines parallel to the long sides, the L-shaped fixing frames are jointly fixed to the top ends of all the dampers at the top of the same L-shaped fixing frame, and a flexible frame is movably connected to the position, away from the opening, of the top of the inner box. Through the arrangement of the outer box, the inner box, the fixing plate, the L-shaped fixing frame and the flexible frame, the problems that the screen box of the aggregate vibrating screen is prone to being damaged due to impact of aggregate in the screen box, and a material conveying structure and an installation structure are prone to being damaged due to metal fatigue are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aggregate production, in particular to a screen box structure of a sandstone aggregate vibrating screen. Background Art

[0002] Aggregate vibrating screen is a kind of equipment used for screening and grading aggregates. It is widely used in construction, mining, building materials, transportation, energy, chemical industry and other industries. It is mainly used to screen aggregates of different particle sizes through the sieve holes of the vibrating screen, so that particles smaller than the sieve holes can pass through the sieve, thereby achieving grading. Aggregate vibrating screen is usually composed of screen box, vibrator, motor, base and supporting device. The motor makes the eccentric block of the vibrator rotate at high speed through the V-belt. The running eccentric block generates a large centrifugal force, which stimulates the screen box to produce a circular motion of a certain amplitude. The material on the screen is subjected to the impulse transmitted by the screen box on the inclined screen surface, and a continuous throwing motion is generated. In the process of the material meeting the screen surface, particles smaller than the sieve holes are screened, thereby achieving grading. Therefore, during work, the screen box is an installation structure for installing various screening structures, but it still has the following disadvantages in actual use:

[0003] During the working process of the aggregate vibrating screen box, the screen box is installed in a suitable position by the screening structure. During the long-term working process, the screen box is impacted by the aggregate for a long time, which is easy to cause deformation in the screen box and affect the working of the screening structure.

[0004] During the operation of the aggregate vibrating screen box, the material is directly transported into it through external conveying equipment, and the screening structure installed in it performs screening while vibrating. However, during the material transportation process, since the screen box is in a vibrating state, metal fatigue damage is caused between the installation structures of the feeding structure. Utility Model Content

[0005] The utility model aims to provide a sand and gravel aggregate vibrating screen box structure, which solves the problems that the aggregate vibrating screen box is easily damaged due to the impact of aggregates therein, and the feeding structure and the installation structure are easily damaged due to metal fatigue by arranging an outer box, an inner box, a fixing plate, an L-shaped fixing frame and a flexible frame.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a screen box structure for a sand and gravel aggregate vibrating screen, comprising an outer box, an inner box, a fixing plate, an L-shaped fixing frame and a flexible frame, wherein both ends and the top of the outer box are open, a plurality of damping strips are equidistantly fixed on the inner wall of the outer box, an inner box is arranged inside the outer box, the damping strips are fixed on the outer side of the inner box, the top and one end of the inner box are open, fixing plates are fixed on both sides of the inner wall of the inner box, a plurality of dampers are equidistantly fixed on the top of the L-shaped fixing frame along a center line parallel to the long side, and the same L The tops of all dampers on the top of the L-shaped fixing frame are fixed with an L-shaped fixing frame together. The top of the inner box is movably connected with a flexible frame away from the position where the opening is set. When working, when working through the outer box, the shock-absorbing strip is fixed therein, and the inner box cooperates with the outer box to reduce the damage caused by the shock-absorbing strip during operation. The damper is fixed thereon through a fixing plate, and the L-shaped fixing frame is supported thereon through the damper cooperation, and the mounting strip of the screen frame is connected and installed through the L-shaped fixing frame, and the aggregate is transported into the inner box through the flexible frame.

[0008] Furthermore, mounting frames are fixed in the center of both sides of the outer box, and two external fixing frames are fixed on both sides of the outer box. The two external fixing frames on the same side of the outer box are symmetrically arranged about the center line of the outer box in the vertical direction. When the outer box is working, it is connected to the exciter device through the mounting frame, and is supported together with the external shock-absorbing support structure through the external fixing frame.

[0009] Furthermore, a damping spring is fixed on the top of the fixing plate outside each damper, the top end of the damping spring is fixed on the bottom surface of the horizontal part of the L-shaped fixing frame, and a reinforcing plate is fixed at an equal distance on the bottom of each fixing plate, and the reinforcing plate is fixed on the inner wall of the inner box, so that the damping spring cooperates to support the L-shaped fixing plate.

[0010] Furthermore, a slope is fixed on the top of each L-shaped fixing frame, and a mounting strip is fixed to the lower edge of one side of the vertical portion of the L-shaped fixing frame close to the inner center of the outer box. When the L-shaped fixing plate is working, the aggregate is guided to the screen frame through the slope, and the screen frame is installed through the mounting strip.

[0011] Furthermore, a fixed frame is fixed to the outside of the flexible frame, the fixed frame is fixed to the top of the inner box, and the flexible frame below the fixed frame is arranged at the upper inner part of the inner box, so that when working, the flexible frame is stably arranged in the inner box through the fixed frame.

[0012] Furthermore, a feed hopper is fixed to the top of the flexible frame, a mounting frame is fixed to the upper portion of the outer side of the feed hopper, and the feed hopper is mounted to an external mounting structure through the mounting frame.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem that the aggregate vibration screen box is easily damaged due to the impact of aggregates therein by arranging an outer box, an inner box, a fixing plate and an L-shaped fixing frame, the screen frame to be screened is placed between the two L-shaped fixing frames in the inner box and supported on two mounting strips, the mounting bolts are inserted into the two mounting strips and then screwed into the screen frame, and the screen frame can be immediately put into operation after it is installed, the mounting frame is driven by an external excitation device to drive the outer box to vibrate, the vibration is transmitted to the inner box through the shock absorbing strip, and the screen frame between the two L-shaped fixing frames and the materials on the screen in the screen frame are driven to vibrate, so that the materials are screened, and in the screening process, the impact caused by the up and down vibration of the screen frame is reduced by the shock absorbing spring and the damper to reduce the damage to the inner box, and the overall vibration is reduced by the shock absorbing strip, so that when working, the outer box and the inner box are less damaged and the durability is better.

[0015] The utility model solves the problem that the feeding structure and the mounting structure on the aggregate vibrating screen box are easily damaged due to metal fatigue by arranging the inner box and the flexible frame. By aligning the mounting frame with the external mounting structure, the mounting bolts are inserted into the mounting frame and screwed into the mounting structure at the output end of the external feeding equipment, and the aggregate is then transported to the feed hopper, and then the material is transported to the flexible frame through the feed hopper, and then transported to the inner box through the flexible frame, and is screened by the screen under the drive of the external vibration equipment. During the vibration of the outer box and the inner box, the vibration will not be transmitted to the equipment for conveying the aggregate due to the flexible setting of the flexible frame, thereby reducing the influence on the aggregate conveying and reducing the damage caused by metal fatigue between the feeding structure and the mounting structure on the aggregate vibrating screen box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional diagram of the assembly structure of a sand and gravel aggregate vibrating screen box structure;

[0018] Figure 2 It is a three-dimensional diagram of the outer box structure;

[0019] Figure 3 It is a three-dimensional diagram of the inner box structure;

[0020] Figure 4 It is a three-dimensional diagram of the fixed plate structure;

[0021] Figure 5 It is a three-dimensional diagram of the L-shaped fixing frame structure;

[0022] Figure 6 It is a three-dimensional diagram of the flexible frame structure.

[0023] Reference numerals:

[0024] 1. Outer box; 101. Mounting frame; 102. Outer fixing frame; 2. Inner box; 201. Shock-absorbing strip; 3. Fixing plate; 301. Damping spring; 302. Damper; 303. Reinforcing plate; 4. L-shaped fixing frame; 401. Mounting strip; 402. Slope; 5. Flexible frame; 501. Fixing frame; 502. Feed hopper; 503. Mounting frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiments

[0026] See also Figure 1-5 The utility model is a sand and gravel aggregate vibrating screen box structure, comprising an outer box 1, an inner box 2, a fixing plate 3, an L-shaped fixing frame 4 and a flexible frame 5. Both ends and the top of the outer box 1 are open. When the outer box 1 is working, the inner box 2 is set therein. A plurality of shock absorbing strips 201 are fixed equidistantly on the inner wall of the outer box 1. The inner box 2 is set in the outer box 1. The shock absorbing strips 201 are fixed on the outer side of the inner box 2. The outer box 1 fixes the inner box 2 therein through the shock absorbing strips 201, and the fixing plate 3 is fixed thereon through the inner box 2. The shock absorbing strips 201 are used to cushion the outer box 1 and the inner box 2. The top and one end of the inner box 2 are open. A fixing plate 3 is fixed on both sides of the inner wall of the inner box 2, and the L-shaped fixing frame 4 is supported in the inner box 2 by the damper 302 on the fixing plate 3. A plurality of equidistant dampers 302 are fixed on the top of the L-shaped fixing frame 4 along the center line parallel to the long side, and the energy of the aggregate impact is consumed by the damper 302. The top of all the dampers 302 on the top of the same L-shaped fixing frame 4 is commonly fixed with the L-shaped fixing frame 4, and the mounting bar 401 for mounting the screen frame is connected through the L-shaped fixing frame 4. A flexible frame 5 is movably connected to the top of the inner box 2 away from the opening. When the flexible frame 5 is working, it guides the material transported in the feed hopper 502 into the inner box 2.

[0027] Specifically, a mounting frame 101 is fixed in the center of both sides of the outer box 1, and two external fixing frames 102 are fixed on both sides of the outer box 1. The two external fixing frames 102 on the same side of the outer box 1 are symmetrically arranged about the center line of the outer box 1 in the vertical direction. When the outer box 1 is working, it is installed with a vibration structure such as an exciter through the mounting frame 101, and is connected with the shock-absorbing structure supported by the screen box through the external fixing frame 102.

[0028] Furthermore, a damping spring 301 is fixed to the top of the fixed plate 3 outside each damper 302, and the top of the damping spring 301 is fixed to the bottom surface of the horizontal part of the L-shaped fixing frame 4. A reinforcing plate 303 is equidistantly fixed to the bottom of each fixed plate 3, and the reinforcing plate 303 is fixed to the inner wall of the inner box 2. When the damper 302 is working, the damping spring 301 reduces the impact of aggregate vibration.

[0029] Furthermore, a slope 402 is fixed on the top of each L-shaped fixing frame 4, and a mounting strip 401 is fixed to the lower edge of one side of the vertical portion of the L-shaped fixing frame 4 close to the inner center of the outer box 1. When the L-shaped fixing frame 4 is working, the aggregate is guided into the screen frame between the two L-shaped fixing frames 4 through the slope 402, and is installed together with the screen frame through the mounting strip 401.

[0030] The operation process of this embodiment is as follows: when working, first put the screen frame to be screened between the two L-shaped fixing frames 4 in the inner box 2, and support it on the two mounting strips 401, insert the mounting bolts into the two mounting strips 401, and then screw them into the screen frame. After the screen frame is installed, it can be worked immediately, and the mounting frame 101 is driven by an external excitation device to drive the outer box 1 to vibrate, and the vibration is transmitted to the inner box 2 through the shock-absorbing strip 201, driving the screen frame between the two L-shaped fixing frames 4 and the material on the screen in the screen frame to vibrate, so that the material is screened. During the screening process, the impact generated by the up and down vibration of the screen frame is reduced by the shock-absorbing spring 301 and the damper 302 to reduce the damage to the inner box 2, and the overall vibration is reduced by the shock-absorbing strip 201. Impact, so that when working, the outer box 1 and the inner box 2 are less damaged. Specific embodiments

[0031] See also Figure 1 , 6 On the basis of the specific embodiment 1, a fixed frame 501 is fixed on the outside of the flexible frame 5, the fixed frame 501 is fixed on the top of the inner box 2, and the flexible frame 5 below the fixed frame 501 is arranged in the upper inner part of the inner box 2. When the flexible frame 5 is working, it is fixed to the inner box 2 through the fixed frame 501, and the bottom end of the flexible frame 5 is stably arranged in the inner box 2.

[0032] Specifically, a feed hopper 502 is fixed to the top of the flexible frame 5, and a mounting frame 503 is fixed to the upper portion of the outer side of the feed hopper 502. The feed hopper 502 is connected to the output end of an external feeding device through the mounting frame 503, so that when working, the material is transported to the flexible frame 5 through the feed hopper 502.

[0033] The operation process of this embodiment is as follows: when working, first align the installation frame 503 with the external installation structure, then insert the installation bolts into the installation frame 503, and screw them into the installation structure at the output end of the external feeding equipment, and then the aggregate is transported to the feed hopper 502, and then the material is transported to the flexible frame 5 through the feed hopper 502, and then transported to the inner box 2 through the flexible frame 5, and is screened by the screen under the drive of the external vibration equipment. During the vibration of the outer box 1 and the inner box 2, the flexible frame 5 is flexibly set, and the vibration will not be transmitted to the equipment for transporting the aggregate, thereby reducing the impact on the aggregate transportation.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sand and gravel aggregate vibrating screen box structure, comprising an outer box (1), an inner box (2), a fixing plate (3), an L-shaped fixing frame (4) and a flexible frame (5), characterized in that: Both ends and the top of the outer box (1) are open, a plurality of shock absorbing strips (201) are fixed at equal distances on the inner wall of the outer box (1), an inner box (2) is arranged inside the outer box (1), the shock absorbing strips (201) are fixed on the outer side of the inner box (2), the top and one end of the inner box (2) are open, both sides of the inner wall of the inner box (2) are fixed with fixing plates (3), a plurality of dampers (302) are fixed at equal distances on the top of the L-shaped fixing frame (4) along a center line parallel to the long side, the tops of all the dampers (302) on the same top of the L-shaped fixing frame (4) are fixed with the L-shaped fixing frame (4) in common, and a flexible frame (5) is movably connected to the top of the inner box (2) away from the position where the opening is arranged.

2. The screen box structure of a sand and gravel aggregate vibrating screen according to claim 1 is characterized in that: A mounting frame (101) is fixed at the center of both sides of the outer box (1), and two external fixing frames (102) are fixed at both sides of the outer box (1). The two external fixing frames (102) on the same side of the outer box (1) are symmetrically arranged about the center line of the outer box (1) in the vertical direction.

3. The screen box structure of a sand and gravel aggregate vibrating screen according to claim 1 is characterized in that: A damping spring (301) is fixed to the top of the fixing plate (3) outside each damper (302), the top of the damping spring (301) is fixed to the bottom surface of the horizontal portion of the L-shaped fixing frame (4), and a reinforcing plate (303) is fixed to the bottom of each fixing plate (3) at equal intervals, and the reinforcing plate (303) is fixed to the inner wall of the inner box (2).

4. The screen box structure of a sand and gravel aggregate vibrating screen according to claim 1 is characterized in that: A slope (402) is fixed on the top of each L-shaped fixing frame (4), and a mounting strip (401) is fixed on the lower edge of one side of the vertical portion of the L-shaped fixing frame (4) close to the inner center of the outer box (1).

5. The screen box structure of a sand and gravel aggregate vibrating screen according to claim 1 is characterized in that: A fixed frame (501) is fixed to the outside of the flexible frame (5), the fixed frame (501) is fixed to the top of the inner box (2), and the flexible frame (5) below the fixed frame (501) is arranged in the upper part of the inner box (2).

6. The screen box structure of a sand and gravel aggregate vibrating screen according to claim 1, characterized in that: A feed hopper (502) is fixed to the top of the flexible frame (5), and a mounting frame (503) is fixed to the upper portion of the outer side of the feed hopper (502).

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