Sieve hole reducing structure of ore sieve

Abstract

The utility model discloses a sieve pore reducing structure of an ore sieve, and relates to the technical field of ore sieves. The vibrating screen comprises a frame, a longitudinal screen mesh assembly and a transverse screen mesh assembly, wherein the longitudinal screen mesh assembly and the transverse screen mesh assembly are both arranged on the frame; the longitudinal screen assembly comprises a supporting rod fixed to the inner side of the frame, a plurality of connecting blocks are connected to the peripheral side of the supporting rod in a sliding mode, and steel wire ropes are arranged on the connecting blocks. By arranging the longitudinal screen assemblies and the transverse screen assemblies, the linear modules are started to drive the connecting blocks to move during use, the connecting blocks are arranged on the supporting rods in a sliding mode, every two connecting blocks are connected through springs of the same size, model and specification, and meanwhile the transverse screen assemblies of the same specification are synchronously adjusted; the mesh diameter is expanded or reduced according to the same specification, finally synchronous adjustment of the mesh diameter of the screen is achieved, and the problem that in a related scheme, the mesh diameter of the screen needs to be adjusted one by one, and operation is very tedious is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to ore screens, and particularly relates to a sieve hole diameter-changing structure of an ore screen. Background Art

[0002] The sieve is a mesh product with a strict series of mesh sizes and the function of grading and screening object particles, which is approved by the industry, organization, and standards. The ore screen is a device used to screen and classify ore during the ore mining process. Traditional sieves generally have fixed mesh sizes. When producing products of different specifications, it is necessary to manually replace sieves with mesh sizes of different specifications to adjust the product structure. The operation is cumbersome and reduces production efficiency. Therefore, how to provide a screening device with adjustable mesh size is an urgent problem that technicians in this field need to solve.

[0003] In the utility model with the publication number CN213727792U, a screening device with adjustable sieve hole size is disclosed, including two parallel first screw shafts and two parallel second screw shafts, the two first screw shafts and the two second screw shafts form a rectangle, the first screw shaft and the second screw shaft are both slidably sleeved with a plurality of ball nuts, a first sieve hole plate is installed between the corresponding ball nuts on the two first screw shafts, and a second sieve hole plate is installed between the corresponding ball nuts on the two second screw shafts. The utility model achieves the selection of materials of different sizes without changing the screen by adjusting the first sieve hole plate and the second sieve hole plate on the first screw shaft and the second screw shaft respectively, thereby improving the efficiency of material screening, and at the same time, utilizing the mechanical characteristics of the ball screw to ensure the dimensional accuracy of the sieve hole.

[0004] However, it still has the following disadvantages in actual use: although the above-mentioned equipment can adjust the aperture of the screen, the overall mesh aperture needs to be adjusted separately, and the actual operation is very cumbersome and complicated. Utility Model Content

[0005] The utility model aims to provide a sieve hole diameter-changing structure for an ore screen. The utility model solves the problem in related schemes that the sieve hole diameters need to be adjusted one by one, which is very cumbersome, by setting a longitudinal sieve assembly and a transverse sieve assembly.

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

[0007] The utility model is a sieve hole diameter-changing structure of an ore screen, comprising a frame, a longitudinal screen mesh component and a transverse screen mesh component, wherein the longitudinal screen mesh component and the transverse screen mesh component are both arranged on the frame;

[0008] The longitudinal screen assembly includes a support rod fixed to the inner side of the frame, a plurality of connection blocks are slidably connected to the outer peripheral side of the support rod, and a steel wire rope is arranged on the connection block. The longitudinal screen assembly also includes a spring, and the connection blocks are fixedly connected to each other in turn through the spring. A linear module is also fixed to one end of the frame, and a slider is movably connected to the linear module. The connection block arranged at one end of the support rod is fixed to the frame, and the connection block arranged at the other end of the support rod is fixedly connected to the slider.

[0009] The frame is also provided with a fixing part, which includes a clamping block 1 and a clamping block 2 which are respectively movably connected to the two ends of the frame. A U-shaped frame is also fixed on the clamping block 1. A threaded rod is threadedly connected to the center of the U-shaped frame, and one end of the threaded rod is rotatably connected to the clamping block 2.

[0010] Furthermore, the support rod, connecting block, spring, linear module and slider located at the same end of the frame are a group, and two groups are arranged in mirror image. The two ends of the wire rope are respectively fixed to the connecting blocks correspondingly arranged at the two ends of the frame.

[0011] Furthermore, the spring is arranged in an hourglass shape.

[0012] Furthermore, a baffle is fixed on the inner side of the frame.

[0013] Furthermore, a shell is provided on the outer peripheral side of the longitudinal screen assembly protruding from the frame portion, and the shell is fixed on the outer side wall of the frame.

[0014] Furthermore, the components constituting the transverse screen assembly are the same as the components constituting the longitudinal screen assembly.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model sets up a longitudinal screen assembly and a transverse screen assembly. When in use, the linear module is started to drive the connecting block to move. Since the connecting block is slidably set on the support rod, and the connecting blocks are connected to each other by springs of the same size and specifications, the spacing between each connecting block will be the same when the linear module is stretched and adjusted. At the same time, the transverse screening assembly is adjusted synchronously with the same specification, so that the screen aperture is expanded or reduced with the same specification, and finally the synchronous adjustment of the screen aperture is realized, which solves the problem that the screen aperture needs to be adjusted one by one in the related scheme, which is very cumbersome.

[0017] 2. The utility model arranges a longitudinal screen assembly and a transverse screen assembly. After the screen aperture is adjusted, the threaded rod is rotated to fix the entire device. Block 1 is provided with a U-shaped frame, on which a threaded rod is provided, and block 2 is provided on the threaded rod. The rotation of the threaded rod drives block 1 and block 2 to move toward each other synchronously, and the connecting block is squeezed and fixed to prevent it from shaking during screening. This solves the problem that in most traditional fixing schemes, the two blocks are fixed separately by two threaded rods, and the fixation is too cumbersome. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the longitudinal screen assembly of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 3 This is a structural schematic diagram of the utility model longitudinal screen assembly without fixing parts;

[0021] Figure 4 for Figure 3 The structural diagram at A in the middle;

[0022] Figure 5 It is a structural schematic diagram of the fixing member of the utility model.

[0023] Reference numerals:

[0024] 1. Frame; 11. Baffle;

[0025] 2. Longitudinal screen assembly; 21. Support rod; 22. Connecting block; 23. Steel wire rope; 24. Spring; 25. Linear module; 251. Sliding block; 26. Fixing piece; 261. Block 1; 262. Block 2; 263. U-shaped frame; 264. Threaded rod; 27. Housing;

[0026] 3. Horizontal screen assembly. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-5 As shown, the utility model is a sieve hole variable diameter structure of an ore screen, comprising a frame 1, a longitudinal screen assembly 2 and a transverse screen assembly 3, wherein the longitudinal screen assembly 2 and the transverse screen assembly 3 are both arranged on the frame 1; the frame 1 is used for fixing and supporting the entire screen screening structure, and the longitudinal screen assembly 2 and the transverse screen assembly 3 are cross-arranged to form a mesh structure to screen the ore.

[0030] The longitudinal screen assembly 2 includes a support rod 21 fixed to the inner side of the frame 1, and a plurality of connecting blocks 22 are slidably connected to the outer peripheral side of the support rod 21, and a steel wire rope 23 is arranged on the connecting block 22. The longitudinal screen assembly 2 also includes a spring 24, and the connecting blocks 22 are fixedly connected to each other in turn through the spring 24. A linear module 25 is also fixed to one end of the frame 1, and a slider 251 is movably connected to the linear module 25. The connecting block 22 arranged at one end of the support rod 21 is fixed to the frame 1, and the connecting block 22 arranged at the other end of the support rod 21 is fixedly connected to the slider 251.

[0031] The support rod 21 is used to fix the connecting block 22 while ensuring its mobility. At the same time, the support rod 21 is relatively slender due to the structural limitations of the spring 24, and a limit rod with a wider inner diameter is arranged next to it, which also plays a connecting support role. The linear module 25 provides power to drive the connecting block 22 to move through the slider 251, thereby changing the entire screen aperture.

[0032] The frame 1 is also provided with a fixing part 26, which includes a first block 261 and a second block 262 which are respectively movably connected to the two ends of the frame 1. A U-shaped frame 263 is also fixed to the first block 261. The center of the U-shaped frame 263 is threadedly connected to a threaded rod 264, and one end of the threaded rod 264 is rotatably connected to the second block 262.

[0033] The fixing part 26 mainly squeezes the connecting blocks 22 at both ends of the squeezing device by squeezing contact to prevent shaking during ore screening. The U-shaped frame 263 and the threaded rod 264 enable the two side blocks 1 261 and 262 to move relative to each other by adjusting the rotation of a threaded rod 264, which greatly improves the convenience of adjustment.

[0034] Furthermore, the support rod 21, connecting block 22, spring 24, linear module 25 and slider 251 located at the same end of the frame 1 are a group, and two groups are mirror-imaged. The two ends of the wire rope 23 are respectively fixed on the connecting blocks 22 correspondingly arranged at the two ends of the frame 1; the parts used for screening on both sides of the longitudinal screen assembly 2 are symmetrically arranged as a whole, which is convenient for adjustment and use.

[0035] Furthermore, the spring 24 is arranged in an hourglass shape, which allows the spring 24 to compress its own volume to almost the maximum extent when compressed, roughly into a pancake shape rather than a columnar shape, to prevent its own length from affecting the adjustment of small apertures.

[0036] Furthermore, a baffle 11 is fixed inside the frame 1, which is mainly used to prevent small gravels from falling and jamming the linear module 25 and other parts during screening, thereby preventing them from operating normally.

[0037] Furthermore, a shell 27 is provided on the outer peripheral side of the longitudinal screen assembly 2 protruding from the frame 1, and the shell 27 is fixed on the outer side wall of the frame 1; the shell 27 is used to protect the protruding longitudinal screen assembly 2 to prevent it from being damaged by collapsed ore.

[0038] Furthermore, the components of the transverse screen assembly 3 are the same as those of the longitudinal screen assembly 2. The components of the transverse screen assembly 3 and the longitudinal screen assembly 2 are the same, and the only difference is the placement direction and the length of the wire rope 23. Only when the transverse screen assembly 3 and the longitudinal screen assembly 2 are placed crosswise can a mesh structure be formed to screen the ore.

[0039] The specific working principle of the utility model is: when the device is used to screen the ore, the aperture of the entire mechanism screen is adjusted according to the internal strength of the ore to be screened, and the linear module 25 is first started to drive the connecting block 22 to move. Since the connecting block 22 is slidably set on the support rod 21, and the connecting blocks 22 are connected to each other through springs 24 of the same size and specification, the spacing between each connecting block 22 will be the same when the linear module 25 is stretched and adjusted, which makes the spacing between the steel wire ropes 23 the same. At the same time, the horizontal screening components are adjusted synchronously with the same specification, so that the mesh aperture is expanded or reduced with the same specification, and finally the synchronous adjustment of the screen aperture is realized.

[0040] After the adjustment is completed, the threaded rod 264 is rotated to fix the entire device. The rotation of the threaded rod 264 drives the clamping block 1 261 and the clamping block 262 to move toward each other synchronously, and the connecting block 22 is squeezed and fixed to prevent it from shaking during screening.

[0041] The above are only preferred embodiments of the present utility model and do not limit the present utility model. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, as well as any modification, equivalent replacement and improvement made, shall be protected by the present utility model.

Claims

1. A sieve hole variable diameter structure for an ore screen, comprising a frame (1), a longitudinal screen assembly (2) and a transverse screen assembly (3), characterized in that: The longitudinal screen assembly (2) and the transverse screen assembly (3) are both arranged on the frame (1); The longitudinal screen assembly (2) comprises a support rod (21) fixed to the inner side of the frame (1), a plurality of connection blocks (22) are slidably connected to the outer peripheral side of the support rod (21), and a steel wire rope (23) is arranged on the connection block (22). The longitudinal screen assembly (2) also comprises a spring (24), and the connection blocks (22) are fixedly connected to each other in pairs via the spring (24) in sequence. A linear module (25) is also fixed to one end of the frame (1), and a slider (251) is movably connected to the linear module (25). The connection block (22) arranged at one end of the support rod (21) is fixed to the frame (1), and the connection block (22) arranged at the other end of the support rod (21) is fixedly connected to the slider (251); The frame (1) is also provided with a fixing member (26), the fixing member (26) comprising a first clamping block (261) and a second clamping block (262) respectively movably connected to two ends of the frame (1), a U-shaped frame (263) is also fixed to the first clamping block (261), a threaded rod (264) is centrally threadedly connected to the U-shaped frame (263), and one end of the threaded rod (264) is rotatably connected to the second clamping block (262).

2. The sieve hole diameter-changing structure of an ore sieve according to claim 1, characterized in that: The support rod (21), the connecting block (22), the spring (24), the linear module (25) and the slider (251) located at the same end of the frame (1) form a group, and two groups are arranged in a mirror image. The two ends of the steel wire rope (23) are respectively fixed to the connecting blocks (22) correspondingly arranged at the two ends of the frame (1).

3. The sieve hole diameter-changing structure of an ore sieve according to claim 1, characterized in that: The spring (24) is arranged in an hourglass shape.

4. The sieve hole diameter-changing structure of an ore screen according to claim 1, characterized in that: A baffle (11) is also fixed on the inner side of the frame (1).

5. The sieve hole diameter-changing structure of an ore sieve according to claim 1, characterized in that: The longitudinal screen assembly (2) is also provided with an outer shell (27) on the outer peripheral side of the portion protruding from the frame (1), and the outer shell (27) is fixed to the outer side wall of the frame (1).

6. The sieve hole diameter-changing structure of an ore sieve according to claim 1, characterized in that: The components of the transverse screen assembly (3) are the same as the components of the longitudinal screen assembly (2).

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