Screening mechanism of crusher for mine field

Abstract

The utility model provides a screening mechanism of a crusher for a mine field, and belongs to the technical field of mine field screening. The screening mechanism of the crusher for the mine field comprises a base, a screening frame and a screening mechanism body, the screening frame is slidably installed on the surface of the base, the screening mechanism body is installed on the surface of the base and used for screening ore, the screening mechanism body comprises a screening plate, a support and a lead screw, the screening plate is installed in an inner cavity of the screening frame, and cross rods are symmetrically installed on the surface of the base. By arranging the screening mechanism, the motor can drive the second rotating shaft and the rotating wheel to rotate, so that the screening frame is driven by the eccentric shaft and the swing arm to reciprocate on the surface of the guide rail for screening; and meanwhile, a gear can be driven by a toothed plate to drive a third rotating shaft to reciprocate, a screw rod is driven by a second belt pulley and a first belt pulley to synchronously reciprocate, so that a threaded block is driven to drive a mounting plate to reciprocate, ores accumulated on the surface of a sieve plate are synchronously turned through a turning rod, and the screening effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine screening, and more specifically, to a screening mechanism for a crusher in a mine. Background Art

[0002] The screening mechanism is an important part of ore processing. Its main function is to classify the crushed materials to ensure that the particle size of the materials meets the requirements of the production process. The screening mechanism can divide the materials into different levels according to the particle size difference of the materials to meet different production needs. It is mainly applied to the crushing and ore dressing processes of ores, especially in the processing of metal ores.

[0003] The existing screening mechanism of crushers generally inclines the sieve plate and vibrates the sieve plate through a vibration motor. The ore slides down with the vibration and cannot turn the ore on the surface of the sieve plate. When there is a large amount of ore accumulated on the surface of the sieve plate, only relying on vibration cannot ensure the screening quality. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a screening mechanism for a crusher in a mine that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is implemented as follows:[[]]END

[0006] The utility model provides a screening mechanism for a crusher in a mine, including a base, a screening frame and a screening mechanism. The screening frame is slidably installed on the surface of the base. The screening mechanism is installed on the surface of the base and is used for screening ores. The screening mechanism includes:

[0007] A sieve plate, which is installed in the inner cavity of the screening frame;

[0008] A bracket, which is symmetrically and fixedly installed on the surface of the screening frame. An installation plate is slidably installed between the two brackets. A plurality of turning rods are installed at the bottom of the installation plate for turning the ore;

[0009] A lead screw, which is rotatably installed between the two brackets. A threaded block is fixedly installed on the surface of the installation plate, and the threaded block is threadedly connected to the lead screw.

[0010] In a preferred embodiment, cross bars are symmetrically installed on the surface of the base. First rotating shafts are symmetrically and rotatably installed at the bottom of the screening frame. Guide wheels are fixedly installed at both ends of the first rotating shafts. Guide rails are fixedly installed on the surface of the cross bars, and the guide wheels are rotatably installed on the surface of the guide rails.

[0011] In a preferred embodiment, a second rotating shaft is rotatably installed on the surface of the base. A runner is fixedly installed on the surface of the second rotating shaft, and an eccentric shaft is fixedly installed on the surface of the runner.

[0012] In a preferred embodiment, a connecting shaft is fixedly installed inside the screening frame. A swing arm is rotatably installed between the connecting shaft and the eccentric shaft. A motor is fixedly installed on the side wall of the base, and the output end of the motor is fixedly connected to the second rotating shaft.

[0013] In a preferred embodiment, a third rotating shaft is rotatably installed at the bottom of the screening frame. A gear is fixedly installed at one end of the third rotating shaft. A toothed plate is fixedly installed at the bottom of the cross bar, and the toothed plate meshes with the gear.

[0014] In a preferred embodiment, sliders are symmetrically installed on the surface of the mounting plate. A guide rod is fixedly installed between the brackets. The sliders are slidably connected to the guide rod. A first pulley is fixedly installed at one end of the lead screw. A second pulley is fixedly installed at one end of the third rotating shaft. A belt is connected between the first pulley and the second pulley.

[0015] In a preferred embodiment, a knocking mechanism is installed at the bottom of the screening frame for knocking the sieve plate. The knocking mechanism includes a first support rod and a knocking block. The first support rod is rotatably installed on the surface of the first rotating shaft. A knocking block is fixedly installed at one end of the first support rod for knocking the sieve plate.

[0016] In a preferred embodiment, a second support rod is fixedly installed on the surface of the third rotating shaft. Push blocks are fixedly installed at both ends of the second support rod, and the push blocks are in contact with the first support rod.

[0017] The screening mechanism of a crusher for a mine provided by the present utility model has the following beneficial effects:

[0018] 1. By setting up the screening mechanism, the motor can drive the second rotating shaft and the rotating wheel to rotate, so that the screening frame is driven to reciprocate on the guide rail surface through the eccentric shaft and the swing arm for screening. At the same time, the toothed plate can drive the gear to drive the third rotating shaft to reciprocate, and the lead screw is driven to rotate synchronously through the second pulley and the first pulley, so as to drive the threaded block to drive the mounting plate to reciprocate, and the ore piled up on the surface of the sieve plate is turned over synchronously by the turning rod, improving the screening effect.

[0019] 2. By setting up the knocking mechanism, when the third rotating shaft reciprocates, it drives the second support rod to rotate synchronously, so that the push block pushes the second support rod, and the knocking block impacts the sieve plate to prevent the sieve plate from being blocked and ensure the screening quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show certain embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings;

[0021] Figure 1 It is a perspective view provided by the embodiment of the present utility model;

[0022] Figure 2 It is a top view provided by the embodiment of the present utility model;

[0023] Figure 3 It is an upward perspective view of the screening frame provided by the embodiment of the present utility model;

[0024] Figure 4 It is a perspective view of the mounting plate provided by the embodiment of the present utility model;

[0025] In the figure: 1, base; 2, screening frame; 3, screening mechanism; 301, sieve plate; 302, cross bar; 303, first rotating shaft; 304, guide wheel; 305, guide rail; 306, second rotating shaft; 307, runner; 308, eccentric shaft; 309, connecting shaft; 310, swing arm; 311, motor; 312, third rotating shaft; 313, gear; 314, toothed plate; 315, bracket; 316, mounting plate; 317, turning rod; 318, slider; 319, guide rod; 320, threaded block; 321, lead screw; 322, first pulley; 323, second pulley; 4, knocking mechanism; 401, first support rod; 402, knocking block; 403, second support rod; 404, pushing block. Specific embodiments

[0026] To make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model.

[0027] Refer to Figures 1-4, the present utility model provides a technical solution: a screening mechanism for a crusher in a mine field, including a base 1, a screening frame 2 and a screening mechanism 3. The screening frame 2 is slidably installed on the surface of the base 1, and the screening mechanism 3 is installed on the surface of the base 1 for screening ores. The screening mechanism 3 includes a sieve plate 301, a bracket 315 and a lead screw 321. The sieve plate 301 is installed in the inner cavity of the screening frame 2 for screening the ores crushed by the crusher. Cross bars 302 are symmetrically installed on the surface of the base 1. First rotating shafts 303 are symmetrically and rotatably installed at the bottom of the screening frame 2. Guide wheels 304 are fixedly installed at both ends of the first rotating shafts 303. Guide rails 305 are fixedly installed on the surface of the cross bars 302. The guide wheels 304 are rotatably installed on the surface of the guide rails 305.

[0028] Referring to Figures 1-3 , in a preferred embodiment, a second rotating shaft 306 is rotatably installed on the surface of the base 1. A runner 307 is fixedly installed on the surface of the second rotating shaft 306. An eccentric shaft 308 is fixedly installed on the surface of the runner 307. The eccentric shaft 308 is installed at a non-central position of the runner 307. A connecting shaft 309 is fixedly installed in the inner cavity of the screening frame 2. A swing arm 310 is rotatably installed between the connecting shaft 309 and the eccentric shaft 308. A motor 311 is fixedly installed on the side wall of the base 1. The output end of the motor 311 is fixedly connected to the second rotating shaft 306. The motor 311 can drive the second rotating shaft 306 and the runner 307 to rotate, so as to drive the screening frame 2 to reciprocate on the surface of the guide rail 305 through the eccentric shaft 308 and the swing arm 310 for screening.

[0029] Referring to Figures 1-3 , in a preferred embodiment, a third rotating shaft 312 is rotatably installed at the bottom of the screening frame 2. A gear 313 is fixedly installed at one end of the third rotating shaft 312. A toothed plate 314 is fixedly installed at the bottom of the cross bar 302. The toothed plate 314 meshes with the gear 313. When the screening frame 2 reciprocates, the gear 313 can be driven by the toothed plate 314 to drive the third rotating shaft 312 to rotate reciprocally. Brackets 315 are symmetrically and fixedly installed on the surface of the screening frame 2. A mounting plate 316 is slidably installed between the two brackets 315. A plurality of turning rods 317 are installed at the bottom of the mounting plate 316 for turning the ores to improve the screening effect. Sliders 318 are symmetrically installed on the surface of the mounting plate 316. Guide rods 319 are fixedly installed between the brackets 315. The sliders 318 are slidably connected to the guide rods 319.

[0030] Referring to Figures 1-3, in a preferred embodiment, the lead screw 321 is rotatably installed between two brackets 315. A threaded block 320 is fixedly installed on the surface of the mounting plate 316. The threaded block 320 is threadedly connected to the lead screw 321. One end of the lead screw 321 is fixedly installed with a first pulley 322. One end of the third rotating shaft 312 is fixedly installed with a second pulley 323. A belt is connected between the first pulley 322 and the second pulley 323. When the third rotating shaft 312 reciprocally rotates, the lead screw 321 is driven to synchronously reciprocally rotate through the second pulley 323 and the first pulley 322, thereby driving the threaded block 320 to drive the mounting plate 316 to reciprocally move, and the ore piled on the surface of the sieve plate 301 is synchronously turned over by the turning rod 317, improving the screening effect.

[0031] In a preferred embodiment, during use, the motor 311 can drive the second rotating shaft 306 and the rotating wheel 307 to rotate, thereby driving the screening frame 2 to reciprocally move on the surface of the guide rail 305 through the eccentric shaft 308 and the swing arm 310 for screening; meanwhile, the toothed plate 314 can drive the gear 313 to drive the third rotating shaft 312 to reciprocally rotate, and the lead screw 321 is driven to synchronously reciprocally rotate through the second pulley 323 and the first pulley 322, thereby driving the threaded block 320 to drive the mounting plate 316 to reciprocally move, and the ore piled on the surface of the sieve plate 301 is synchronously turned over by the turning rod 317, improving the screening effect.

[0032] Refer to Figures 1-4 , in a preferred embodiment, a knocking mechanism 4 is installed at the bottom of the screening frame 2 for knocking the sieve plate 301. The knocking mechanism 4 includes a first support rod 401 and a knocking block 402. The first support rod 401 is rotatably installed on the surface of the first rotating shaft 303. One end of the first support rod 401 is fixedly installed with the knocking block 402 for knocking the sieve plate 301 to prevent the sieve plate 301 from being blocked and ensure the screening quality.

[0033] Refer to Figures 1-4 , in a preferred embodiment, a second support rod 403 is fixedly installed on the surface of the third rotating shaft 312. Push blocks 404 are fixedly installed at both ends of the second support rod 403. The push blocks 404 are in contact with the first support rod 401 for pushing the knocking block 402 to impact the sieve plate 301.

[0034] In a preferred embodiment, during use, when the third rotating shaft 312 reciprocally rotates, it drives the second support rod 403 to synchronously rotate, thereby pushing the second support rod 403 through the push blocks 404, so that the knocking block 402 impacts the sieve plate 301 to prevent the sieve plate 301 from being blocked and ensure the screening quality.

[0035] Specifically, the working principle of the screening mechanism of this crusher for mines is as follows: During use, the motor 311 can drive the second rotating shaft 306 and the runner 307 to rotate, thereby driving the screening frame 2 to reciprocate on the surface of the guide rail 305 through the eccentric shaft 308 and the swing arm 310 for screening. At the same time, the toothed plate 314 can drive the gear 313 to drive the third rotating shaft 312 to reciprocate, drive the lead screw 321 to rotate synchronously through the second pulley 323 and the first pulley 322, thereby driving the threaded block 320 to drive the mounting plate 316 to reciprocate, and synchronously turn the ore accumulated on the surface of the sieve plate 301 through the turning rod 317 to improve the screening effect.

[0036] When the third rotating shaft 312 reciprocates, it drives the second support rod 403 to rotate synchronously, thereby pushing the second support rod 403 through the push block 404, so that the knocking block 402 impacts the sieve plate 301 to prevent the sieve plate 301 from being blocked and ensure the screening quality.

[0037] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0038] It should be noted that the motor 311 is a device or equipment existing in the prior art, or a device or equipment that can be realized by the prior art. Its power supply, specific composition and principle are clear to those skilled in the art, so no further details will be given.

Claims

1. A screening mechanism for a crusher used in a mine, characterized in that: The invention comprises a base (1), a screening frame (2) and a screening mechanism (3), wherein the screening frame (2) is slidably mounted on the surface of the base (1), and the screening mechanism (3) is mounted on the surface of the base (1) and is used to screen ore, wherein the screening mechanism (3) comprises: A sieve plate (301), wherein the sieve plate (301) is installed in the inner cavity of the sieve frame (2); Brackets (315), the brackets (315) are symmetrically fixedly mounted on the surface of the screening frame (2), a mounting plate (316) is slidably mounted between two of the brackets (315), and a plurality of turning rods (317) are mounted at the bottom of the mounting plate (316) for turning the ore; A screw rod (321) is rotatably mounted between the two brackets (315); a threaded block (320) is fixedly mounted on the surface of the mounting plate (316); the threaded block (320) is threadedly connected to the screw rod (321).

2. The screening mechanism of a mine crusher according to claim 1, characterized in that: A cross bar (302) is symmetrically mounted on the surface of the base (1); a first rotating shaft (303) is symmetrically rotatably mounted on the bottom of the screening frame (2); guide wheels (304) are fixedly mounted at both ends of the first rotating shaft (303); a guide rail (305) is fixedly mounted on the surface of the cross bar (302); and the guide wheel (304) is rotatably mounted on the surface of the guide rail (305).

3. The screening mechanism of a mine crusher according to claim 1, characterized in that: A second rotating shaft (306) is rotatably mounted on the surface of the base (1), a rotating wheel (307) is fixedly mounted on the surface of the second rotating shaft (306), and an eccentric shaft (308) is fixedly mounted on the surface of the rotating wheel (307).

4. The screening mechanism of a mine crusher according to claim 3, characterized in that: A connecting shaft (309) is fixedly mounted in the inner cavity of the screening frame (2), a swing arm (310) is rotatably mounted between the connecting shaft (309) and the eccentric shaft (308), a motor (311) is fixedly mounted on the side wall of the base (1), and an output end of the motor (311) is fixedly connected to the second rotating shaft (306).

5. The screening mechanism of a mine crusher according to claim 2, characterized in that: A third rotating shaft (312) is rotatably mounted on the bottom of the screening frame (2), a gear (313) is fixedly mounted on one end of the third rotating shaft (312), a toothed plate (314) is fixedly mounted on the bottom of the crossbar (302), and the toothed plate (314) is meshed with the gear (313).

6. The screening mechanism of a mine crusher according to claim 5, characterized in that: A slider (318) is symmetrically mounted on the surface of the mounting plate (316); a guide rod (319) is fixedly mounted between the brackets (315); the slider (318) is slidably connected to the guide rod (319); a first belt pulley (322) is fixedly mounted on one end of the screw rod (321); a second belt pulley (323) is fixedly mounted on one end of the third rotating shaft (312); and a belt is connected between the first belt pulley (322) and the second belt pulley (323).

7. The screening mechanism of a mine crusher according to claim 5, characterized in that: A knocking mechanism (4) is installed at the bottom of the screening frame (2) for knocking the screening plate (301), wherein the knocking mechanism (4) comprises a first support rod (401) and a knocking block (402), wherein the first support rod (401) is rotatably mounted on the surface of the first rotating shaft (303), and the knocking block (402) is fixedly mounted on one end of the first support rod (401) for knocking the screening plate (301).

8. The screening mechanism of a mine crusher according to claim 7, characterized in that: A second support rod (403) is fixedly mounted on the surface of the third rotating shaft (312), and push blocks (404) are fixedly mounted on both ends of the second support rod (403), and the push blocks (404) are in contact with the first support rod (401).

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