Vibrating screen with anti-blocking effect

Abstract

The utility model relates to the technical field of vibrating screens, and provides a vibrating screen with an anti-blocking effect, which comprises a screening box, a screening plate and an anti-blocking mechanism, the screening plate and the anti-blocking mechanism are matched with each other, and when a servo motor is started, a connecting rod, an eccentric wheel and a first chain wheel can be driven to rotate; a reciprocating screw rod and a second chain wheel also rotate through an arranged chain, so that a sieve plate can vibrate up and down in the inner walls of two sliding grooves through rotation of an eccentric wheel, and raw materials on the upper surface of the sieve plate can be vibrated and classified; and meanwhile, rotation of a reciprocating lead screw can enable a sleeve block to reciprocate along two guide rods, raw materials on the upper surface of the sieve plate are continuously stirred in a reciprocating mode through an elastic strip installed on the bottom face of the sleeve block, in this way, the raw materials can be effectively prevented from blocking the sieve plate, the screening quality of the device is improved, and the device is more practical. By means of the technical scheme, the problem that in the prior art, the screen cannot be effectively prevented from being blocked is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, and in particular to a vibrating screen with an anti-blocking effect. Background Art

[0002] When screening ore, the ore to be screened is usually thrown onto a vibrating screen inclined downward, and the ore is vibrated and screened by the vibration action of the vibrating screen.

[0003] In the prior art, there is a utility model with authorization announcement number CN215198149U, and its name is: A vibrating screen for ore dressing. The utility model sets the vibrating screen horizontally to effectively avoid the problem of incomplete screening by the inclined vibrating screen. By setting an electric push rod at one end of the horizontal vibrating screen, the ore can be effectively spread out in a short time, and the problem of material accumulation affecting the screening efficiency of the horizontal vibrating screen during loading is solved.

[0004] However, in actual use, it is found that the screen is often blocked. If not handled in time, it will affect the quality of screening. The traditional way to deal with screen blockage is to shut down the machine first, and then have multiple workers manually clean it. This cleaning method is not only time-consuming and labor-intensive, but also cannot achieve good cleaning effects, affecting production efficiency.

[0005] In the prior art, the utility model with the authorization announcement number of CN215312930U is named as: A vibrating screen device for processing and breaking mineral materials. The utility model discloses a vibrating screen device for processing and breaking mineral materials, comprising a crushing component and a screening component assembled and connected below the crushing component; the crushing component comprises a crushing frame, wherein a plurality of crushing components arranged at intervals on the left and right are fixedly connected in the crushing frame, wherein the crushing component comprises a material rod body fixedly connected between the crushing frames, wherein a plurality of crushing blades arranged at intervals on the front and rear are fixedly connected on the material rod body; the screening component comprises a screening frame fixedly assembled below the crushing frame, wherein a plurality of screening rods are fixedly connected in the screening frame; a plurality of vibration motor components are fixedly connected between the crushing frame and the left and right sides of the screening frame, wherein the vibration motor components are used for vibration; the vibrating screen device for processing and breaking mineral materials also comprises a pulling component arranged below the screening component, wherein the material screened by the screening component is pulled down by the pulling component. Efficient screening and processing of mineral materials is realized.

[0006] However, during use, the above device still cannot effectively prevent the screen from being blocked during operation, thus affecting the effect of vibration screening. Utility Model Content

[0007] The utility model provides a vibrating screen with anti-blocking effect, which solves the problem in the related art that the screen cannot be effectively prevented from being blocked.

[0008] The technical solution of the utility model is as follows: A vibrating screen with anti-blocking effect, comprising a screening box, a screening plate and an anti-blocking mechanism, the anti-blocking mechanism comprising a servo motor fixedly connected to the outer surface of the screening box, the inner wall of the screening box is rotated with a connecting rod and a reciprocating screw rod, the outer surface of the connecting rod is fixedly connected with two eccentric wheels, one end of the connecting rod is fixedly connected to the output shaft end of the servo motor, the other end of the connecting rod is fixedly connected with a first sprocket, one end of the reciprocating screw rod is fixedly connected with a second sprocket, a chain is provided on the outside of the second sprocket, the first sprocket is connected to the second sprocket through the chain, the outer surface of the reciprocating screw rod is threadedly connected with a sleeve block, and the bottom surface of the sleeve block is installed with evenly distributed elastic strips.

[0009] Furthermore, two slide grooves are provided on the inner wall of the screening box, and the connecting blocks on both sides of the screen plate are slidably mounted in the inner walls of the two slide grooves respectively. By providing the slide grooves, the screen plate can perform screening work more stably inside the screening box.

[0010] Furthermore, the inner wall of each slide groove is fixedly connected to a limit rod, and the inner walls of the connecting blocks on both sides of the screen plate are slidably mounted on the outer surfaces of the two limit rods. By setting the limit rods, the stability of the screen plate movement inside the screening box can be improved.

[0011] Furthermore, the inner top wall of each slide groove is fixedly connected with a compression spring, and the bottom ends of the two compression springs are respectively fixedly connected to the upper surfaces of the connecting blocks on both sides of the screen plate, and the two compression springs are respectively mounted on the outside of the two limit rods. By setting the compression springs, the screen plate can have a tendency to move downward continuously, which facilitates the vibratory screening of the raw materials through the screen plate.

[0012] Furthermore, the inner wall of the screening box is fixedly connected to two guide rods, and the two sides of the sleeve block are slidably sleeved on the outer surfaces of the two guide rods respectively. By setting the guide rods, when the reciprocating screw rotates, the two sides of the sleeve block can reciprocate along the two guide rods.

[0013] Furthermore, two impact cylinders are installed on the inner wall of the screening box, and both of the impact cylinders are located below the screen plate. The provision of the impact cylinders can facilitate the cleaning of the screen plate after the device is in operation.

[0014] Furthermore, four support columns are fixedly connected to the bottom surface of the screening box, and a non-slip pad is fixedly connected to the bottom surface of each support column. By arranging the support columns, the device can be stably placed on the contact surface.

[0015] Furthermore, a discharge port is provided on the bottom surface of the screening box, and a material receiving drawer is placed below the screening box. By providing the discharge port and the material receiving drawer, the raw materials that have been vibrated and screened can be collected together, thereby improving the convenience of using the device.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. In the utility model, the sieve plate and the anti-blocking mechanism are arranged to cooperate with each other. When the servo motor is started, it can drive the connecting rod, the eccentric wheel and the first sprocket to rotate, and the reciprocating screw rod and the second sprocket wheel are also rotated through the arranged chain. In this way, the sieve plate can be vibrated up and down in the inner walls of the two slide grooves through the rotation of the eccentric wheel, and the raw materials on the upper surface of the sieve plate can be vibrated and screened. At the same time, the rotation of the reciprocating screw rod can make the sleeve block reciprocate along the two guide rods, and the raw materials on the upper surface of the sieve plate can be continuously reciprocated by the elastic strip installed on the bottom surface of the sleeve block. In this way, the raw materials can be effectively prevented from blocking the sieve plate, thereby improving the screening quality of the device and being more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the local structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model.

[0024] In the figure: 1. screening box; 2. sieve plate; 3. anti-blocking mechanism; 301. servo motor; 302. connecting rod; 303. eccentric wheel; 304. first sprocket; 305. reciprocating screw rod; 306. second sprocket; 307. chain; 308. sleeve block; 309. elastic strip; 310. guide rod; 311. slide groove; 312. limit rod; 313. compression spring; 4. impact cylinder; 5. support column; 6. discharge port; 7. receiving drawer. DETAILED DESCRIPTION

[0025] The following will be combined with 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.

[0026] Example 1

[0027] like Figure 1 to Figure 5 As shown, this embodiment proposes a vibrating screen with anti-blocking effect, including a screening box 1, a screen plate 2 and an anti-blocking mechanism 3, the anti-blocking mechanism 3 includes a servo motor 301 fixedly connected to the outer surface of the screening box 1, and the inner wall of the screening box 1 is provided with a connecting rod 302 and a reciprocating screw 305.

[0028] Two eccentric wheels 303 are fixedly connected to the outer surface of the connecting rod 302 , and one end of the connecting rod 302 is fixedly connected to the output shaft end of the servo motor 301 . When the servo motor 301 is started, the two eccentric wheels 303 can be driven to rotate simultaneously.

[0029] The inner wall of the screening box 1 is provided with two slide grooves 311, and the connecting blocks on both sides of the screen plate 2 are slidably mounted in the inner walls of the two slide grooves 311 respectively. By providing the slide grooves 311, the screen plate 2 can perform screening work more stably inside the screening box 1.

[0030] The inner wall of each slide groove 311 is fixedly connected to a limiting rod 312, and the inner walls of the connecting blocks on both sides of the screen plate 2 are slidably mounted on the outer surfaces of the two limiting rods 312 respectively. By setting the limiting rods 312, the stability of the movement of the screen plate 2 inside the screening box 1 can be improved.

[0031] The inner top wall of each slide groove 311 is fixedly connected with a compression spring 313, and the bottom ends of the two compression springs 313 are respectively fixedly connected to the upper surfaces of the connecting blocks on both sides of the sieve plate 2. The two compression springs 313 are respectively mounted on the outside of the two limit rods 312. By setting the compression springs 313, the sieve plate 2 can have a tendency to move downward continuously, thereby facilitating the vibration screening of the raw materials through the sieve plate 2.

[0032] In this way, when the servo motor 301 is started, the two rotating eccentric wheels 303 can cause the screen plate 2 to vibrate and screen the raw materials in the inner walls of the two chutes 311 .

[0033] The other end of the connecting rod 302 is fixedly connected to the first sprocket 304, and one end of the reciprocating screw rod 305 is fixedly connected to the second sprocket 306. A chain 307 is provided on the outside of the second sprocket 306. The first sprocket 304 is transmission-connected to the second sprocket 306 via the chain 307. When the connecting rod 302 rotates, the first sprocket 304 is driven to rotate. The second sprocket 306 and the reciprocating screw rod 305 can be rotated by the provided chain 307.

[0034] The outer surface of the reciprocating screw rod 305 is threadedly connected to a sleeve block 308, and there is a certain distance between the sleeve block 308 and the sieve plate 2, which can prevent the vibrating raw materials on the upper surface of the sieve plate 2 from hitting the sleeve block 308 and prevent movement interference. The bottom surface of the sleeve block 308 is installed with evenly distributed elastic strips 309, and the elastic strips 309 have a certain elasticity. When the sieve plate 2 vibrates, the elastic strips 309 can be deformed, and when the elastic strips 309 move with the sleeve block 308, the raw materials on the upper surface of the sieve plate 2 can be moved.

[0035] The inner wall of the screening box 1 is fixedly connected to two guide rods 310, and the two sides of the sleeve block 308 are slidably sleeved on the outer surfaces of the two guide rods 310 respectively. By setting the guide rods 310, when the reciprocating screw rod 305 rotates, the two sides of the sleeve block 308 can reciprocate along the two guide rods 310.

[0036] In this way, when the sleeve block 308 reciprocates, the elastic strip 309 on its bottom surface can be used to reciprocate the raw materials vibrating and screening on the upper surface of the screen plate 2, preventing the raw materials from blocking the screen plate 2 during the screening process, thereby improving the screening effect of the device. The device achieves the above functions through a power source, thereby improving the practicability of the device.

[0037] Example 2

[0038] like Figure 1 to Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that two impact cylinders 4 are installed on the inner wall of the screening box 1, and the two impact cylinders 4 are both located below the screen plate 2. By arranging the impact cylinders 4, it is convenient to clean the screen plate 2 after the device is working. After the device completes the screening work, it can drive the two impact cylinders 4 to work, so that the output ends of the two impact cylinders 4 are properly impacted against the bottom surface of the screen plate 2, which can shake off dust and other debris, and facilitate subsequent cleaning.

[0039] Four support columns 5 are fixedly connected to the bottom surface of the screening box 1 , and a non-slip pad is fixedly connected to the bottom surface of each support column 5 . By arranging the support columns 5 , the device can be stably placed on the contact surface.

[0040] A discharge port 6 is provided on the bottom surface of the screening box 1, and a material receiving drawer 7 is placed below the screening box 1. By providing the discharge port 6 and the material receiving drawer 7, the raw materials that have been vibrated and screened can be collected in a centralized manner, thereby improving the convenience of the device when in use.

[0041] Working principle: The staff can put the raw materials on the upper surface of the screen plate 2 above the device, and drive the servo motor 301 to screen the raw materials. When the servo motor 301 is started, it will drive the connecting rod 302 to rotate. When the connecting rod 302 rotates, it will drive the two eccentric wheels 303 and a first sprocket wheel 304 to rotate. The rotation of the two eccentric wheels 303 can make the screen plate 2 vibrate up and down in the inner walls of the two chutes 311 to achieve the screening of the raw materials. At the same time, the rotation of the first sprocket wheel 304 will The chain 307 drives the reciprocating screw 305 and the second sprocket 306 to rotate. When the reciprocating screw 305 rotates, the sleeve block 308 will reciprocate along the two guide rods 310. When the sleeve block 308 reciprocates, the elastic strip 309 will move along with it. The reciprocating motion of the elastic strip 309 can move the raw materials on the upper surface of the screen plate 2, effectively preventing the raw materials on the upper surface of the screen plate 2 from clogging the screen plate 2, optimizing the vibration screening process, improving the screening quality, and being more practical.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibrating screen with anti-blocking effect, characterized in that: The invention comprises a screening box (1), a screening plate (2) and an anti-blocking mechanism (3), wherein the anti-blocking mechanism (3) comprises a servo motor (301) fixedly connected to the outer surface of the screening box (1), the inner wall of the screening box (1) is provided with a rotating sleeve with a connecting rod (302) and a reciprocating screw rod (305), the outer surface of the connecting rod (302) is fixedly connected to two eccentric wheels (303), one end of the connecting rod (302) is fixedly connected to the output shaft end of the servo motor (301), and the connecting rod (302) is fixedly connected to the output shaft end of the servo motor (301). The other end is fixedly connected to a first sprocket (304); one end of the reciprocating screw rod (305) is fixedly connected to a second sprocket (306); a chain (307) is provided outside the second sprocket (306); the first sprocket (304) is transmission-connected to the second sprocket (306) via the chain (307); a sleeve block (308) is threadedly connected to the outer surface of the reciprocating screw rod (305); and uniformly distributed elastic strips (309) are installed on the bottom surface of the sleeve block (308).

2. A vibrating screen with anti-blocking effect according to claim 1, characterized in that: The inner wall of the screening box (1) is provided with two slide grooves (311), and the connecting blocks on both sides of the screening plate (2) are respectively slidably sleeved in the inner walls of the two slide grooves (311).

3. A vibrating screen with anti-blocking effect according to claim 2, characterized in that: The inner wall of each slide groove (311) is fixedly connected to a limit rod (312), and the inner walls of the connecting blocks on both sides of the screen plate (2) are slidably sleeved on the outer surfaces of the two limit rods (312).

4. A vibrating screen with anti-blocking effect according to claim 3, characterized in that: The inner top wall of each slide groove (311) is fixedly connected to a compression spring (313), the bottom ends of the two compression springs (313) are respectively fixedly connected to the upper surfaces of the connecting blocks on both sides of the sieve plate (2), and the two compression springs (313) are respectively sleeved on the outside of the two limit rods (312).

5. The vibrating screen with anti-blocking effect according to claim 1, characterized in that: Two guide rods (310) are fixedly connected to the inner wall of the screening box (1), and two sides of the sleeve block (308) are respectively slidably sleeved on the outer surfaces of the two guide rods (310).

6. A vibrating screen with anti-blocking effect according to claim 1, characterized in that: Two impact cylinders (4) are installed on the inner wall of the screening box (1), and the two impact cylinders (4) are both located below the screen plate (2).

7. A vibrating screen with anti-blocking effect according to claim 1, characterized in that: Four support columns (5) are fixedly connected to the bottom surface of the screening box (1), and an anti-slip pad is fixedly connected to the bottom surface of each support column (5).

8. The vibrating screen with anti-blocking effect according to claim 1, characterized in that: The bottom surface of the screening box (1) is provided with a material discharge port (6), and a material receiving drawer (7) is placed below the screening box (1).

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