Rockfill material screening device

Abstract

The utility model discloses a kind of rockfill material screening devices, it relates to stone processing technical field, it includes screening box, the upper side and middle part in screening box are all provided with a row of screening rods, the front end bottom side of two rows of screening rods is all provided with positioning rod.This kind of rockfill material screening device, by the two rows of screening rods of setting distribution, the gap between screening rod can be used to rockfill material screening, and the screening gap formed by the parallel arrangement between screening rod will not cause the blockage of rockfill material, while the spring set in mounting groove in the rear side of screening rod, after rockfill material falls on screening rod, the up and down deviation between multiple screening rods can be made, further avoid rockfill material to be stuck between adjacent screening rods, effectively improve the screening efficiency of rockfill material.

Description

Technical Field

[0001] This utility model relates to the field of stone processing technology, specifically to a stone screening device. Background Technology

[0002] Stone stockpile screening is a crucial step in construction engineering, primarily used to sift stockpiled stones, removing impurities to obtain stones that meet requirements. Currently, there are round-hole screens and square-hole screens. Round-hole screens typically use round steel bars as the screen mesh, forming circular openings. Their advantages include a large effective screening area and high screening efficiency, making them suitable for screening finer stones. Square-hole screens use square or rectangular screen meshes, forming square openings. Their advantages include easily controllable opening size and less clogging, making them suitable for screening coarser stones. However, both round-hole and square-hole screens have the potential for stone to accumulate at the openings, making it difficult for stones to pass through and causing blockages, thus affecting the screening efficiency of the stockpile. Therefore, this application proposes a stone stockpile screening device to solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, this utility model provides a stone material screening device, which solves the technical problems mentioned in the background.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a stone material screening device, comprising a screening box, wherein a row of screening rods is provided on the upper side and the middle part of the screening box, and a positioning rod is provided on the bottom front end of each row of screening rods, and multiple positioning sleeves are fitted on each positioning rod, and a linkage rod is connected to the top side of each positioning sleeve, and the top end of the linkage rod is connected to the corresponding screening rod. A row of mounting grooves is opened on the upper side and the middle part of the rear side wall of the screening box, and the rear ends of the upper and lower rows of screening rods are correspondingly arranged with the two rows of mounting grooves, and a spring is installed in each mounting groove, and the top end of the spring is connected to the screening rod. A support is provided at the bottom of the screening box, and multiple positioning springs are used to connect the four corners of the screening box and the support. A vibrating block is installed on the side wall of the screening box, and a drive motor is installed on the support, and the drive motor is connected to the corresponding vibrating block by a belt.

[0007] Preferably, the gap between the upper row of screening rods is greater than the gap between the lower row of screening rods.

[0008] Preferably, the length of the upper row of screening rods is greater than the length of the lower row of screening rods.

[0009] Preferably, the width of the mounting groove is slightly larger than the diameter of the screening rod, and the screening rod can slide up and down within the mounting groove.

[0010] Preferably, the screening box and the two rows of screening rods are all inclined, and the front ends of the screening box and the two rows of screening rods are all at the lower end.

[0011] Preferably, the inclination angle of the screening box and the two rows of screening rods is 40-50 degrees.

[0012] (III) Beneficial Effects

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

[0014] This type of riprap screening device uses two rows of screen rods arranged vertically. The gaps between the screen rods are used to screen the riprap, and the parallel arrangement of the screen rods prevents the riprap from getting stuck. At the same time, springs installed on the rear side of the screen rods in the mounting grooves cause the screen rods to shift vertically when they fall onto them, further preventing the riprap from getting stuck between adjacent screen rods and effectively improving the screening efficiency of the riprap. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the screening box of this utility model;

[0017] Figure 3 This is a rear-view three-dimensional structural diagram of the present invention;

[0018] Figure 4 This is a three-dimensional structural diagram of the linkage rod of this utility model.

[0019] In the diagram: 1. Screening box, 2. Screening rod, 3. Linkage rod, 4. Positioning sleeve, 5. Positioning rod, 6. Mounting groove, 7. Spring, 8. Support, 9. Positioning spring, 10. Vibrating block, 11. Drive motor. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1-4As shown, this utility model provides a technical solution: a stone material screening device, including a screening box 1. A row of screening rods 2 is arranged on the upper side and middle of the screening box 1. The gap between the screening rods 2 is larger than the gap between the lower row of screening rods 2, and the length of the screening rods 2 is greater than the length of the lower row of screening rods 2. Positioning rods 5 are provided on the bottom front end of both rows of screening rods 2, and multiple positioning sleeves 4 are fitted on each of the two positioning rods 5. A linkage rod 3 is connected to the top of each positioning sleeve 4, and the top end of the linkage rod 3 is connected to the corresponding screening rod 2. The upper side and middle of the rear side wall of the screening box 1... Each screening box 1 has a row of mounting slots 6, and the rear ends of the upper and lower rows of screening rods 2 are correspondingly set in the two rows of mounting slots 6. Each mounting slot 6 contains a spring 7, and the top of the spring 7 is connected to the screening rod 2. The width of the mounting slot 6 is slightly larger than the diameter of the screening rod 2, and the screening rod 2 can slide up and down within the mounting slot 6. When the piled stone falls onto the screening rod 2, it causes a vertical shift between multiple screening rods 2. This vertical shift between adjacent screening rods 2 effectively prevents the piled stone from getting stuck in the gap between adjacent screening rods 2. A support 8 is provided at the bottom of the screening box 1. The four corners of the screening box 1 and the support 8 are connected by multiple positioning springs 9. The multiple positioning springs 9 ensure that the screening box 1 can vibrate relative to the support 8. Vibrating blocks 10 are installed on the side wall of the screening box 1. A drive motor 11 is installed on the support 8, and the drive motor 11 is connected to the corresponding vibrating block 10 by a belt. The output shaft of the drive motor 11 is connected to a pulley, which is connected to the vibrating block 10 through the belt, driving the vibrating block 10 to rotate. The vibrating block 10 rotates eccentrically, causing the screening box 1 to vibrate. The drive motor 11 drives the vibrating block 10 to vibrate, and the vibrating block 10... The vibration causes the screening box 1 to vibrate, and the piled stone falls to the rear end of the upper row of screening rods 2. Through the vibration, the piled stone slides forward. When the width of the piled stone is less than the gap between the two rows of screening rods 2, it will fall onto the lower row of screening rods 2 for further screening. When the width of the piled stone is less than the gap between the two screening rods 2, it will fall to the bottom of the screening box 1 and slide out. The screening box 1 and the two rows of screening rods 2 are all inclined, and the front end of the screening box 1 and the two rows of screening rods 2 are both at the lower end. The inclination angle of the screening box 1 and the two rows of screening rods 2 is 40-50 degrees to ensure the normal sliding of the stone.

[0022] The operational steps for this application are as follows:

[0023] The drive motor 11 drives the vibrating block 10 to vibrate. The up-and-down vibration of the vibrating block 10 causes the screening box 1 to vibrate. The piled stone falls to the rear end of the upper row of screening rods 2. The piled stone slides forward through the vibrating screen. When the width of the piled stone is less than the gap between the row of screening rods 2, it will fall onto the lower row of screening rods 2 to continue screening. When the width of the piled stone is less than the gap between the screening rods 2, it will fall to the bottom of the screening box 1 and slide out.

[0024] After the piled stone falls onto the screening rod 2, it causes the multiple screening rods 2 to shift vertically. This results in vertical shifts between adjacent screening rods 2, effectively preventing the piled stone from getting stuck in the gap between adjacent screening rods 2.

[0025] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stone stock screening device, comprising a screening box (1), characterized in that: The screening box (1) has a row of screening rods (2) on its upper side and middle side. Each row of screening rods (2) has a positioning rod (5) at its front bottom side. Multiple positioning sleeves (4) are fitted onto each positioning rod (5), and each positioning sleeve (4) is connected to a linkage rod (3) on its top side. The top of the linkage rod (3) is connected to the corresponding screening rod (2). The screening box (1) has a row of mounting grooves (6) on its upper side and middle side. The rear ends of the upper and lower rows of screening rods (2) are connected to the two rows of mounting grooves (6). The mounting slots (6) are set accordingly, and each mounting slot (6) is equipped with a spring (7), and the top of the spring (7) is connected to the screening rod (2). The bottom of the screening box (1) is provided with a support (8), and the four corners between the screening box (1) and the support (8) are connected by multiple positioning springs (9). The side wall of the screening box (1) is equipped with a vibrating block (10), and the support (8) is equipped with a drive motor (11), and the drive motor (11) is connected to the corresponding vibrating block (10) by a belt.

2. The stone stock screening device according to claim 1, characterized in that: The gap between the upper row of screening rods (2) is greater than the gap between the lower row of screening rods (2).

3. The stone stock screening device according to claim 1, characterized in that: The length of the upper row of screening rods (2) is greater than the length of the lower row of screening rods (2).

4. The stone stock screening device according to claim 1, characterized in that: The width of the mounting groove (6) is slightly larger than the diameter of the screening rod (2), and the screening rod (2) can slide up and down in the mounting groove (6).

5. A stone stock screening device according to claim 1, characterized in that: The screening box (1) and the two rows of screening rods (2) are all inclined, and the front end of the screening box (1) and the two rows of screening rods (2) are both at the lower end.

6. A stone stock screening device according to claim 5, characterized in that: The inclination angle of the screening box (1) and the two rows of screening rods (2) is 40-50 degrees.

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