Anti-clogging screening machine

Abstract

The utility model relates to the technical field of screening machine, and disclose a kind of anti-clogging screening machine, including support assembly, brake assembly, limiting component and screen scraper assembly, the top side end of support assembly is provided with brake assembly, the middle part is provided with limiting component, and the top side end is also provided with screen scraper assembly;The utility model can efficiently convert the rotary power of motor into reciprocating motion required by screening box by the brake assembly installed, to provide continuous and stable power for screening operation, while reducing the vibration impact in the movement process by means of damping structure, to improve the stability and service life of equipment operation.

Description

Technical Field

[0001] This utility model relates to the technical field of screening machines, specifically an anti-clogging screening machine. Background Technology

[0002] In industries such as mining, chemical, and construction, screening machines are key equipment for material classification and processing. They separate materials of different particle sizes through screen surfaces to meet subsequent production needs. However, traditional screening machines generally suffer from several technical problems during long-term use: On the one hand, materials are prone to clogging the screen holes during screening due to factors such as humidity, viscosity, or particle shape, resulting in a significant decrease in screening efficiency. This necessitates frequent shutdowns for manual cleaning, increasing operating costs and severely impacting production continuity. On the other hand, most screening machines have simple power transmission structures, often resulting in significant vibrations due to unstable motion transitions. This reduces equipment stability, causes component wear, and shortens equipment lifespan. Furthermore, some screening machines lack precise motion limit mechanisms, causing the screen box to easily shift and shake during reciprocating motion, making it difficult to control material screening accuracy and further affecting product quality. Meanwhile, the anti-clogging function of traditional screening equipment mostly relies on the vibration of the screen surface itself or manual assistance, which has limited anti-clogging effect and is difficult to adapt to the screening needs of high viscosity and high moisture content materials. These problems restrict the efficiency and economy of screening operations. Therefore, the development of a screening equipment with high anti-clogging capability, stable operation and high screening accuracy has become an urgent need in the industry.

[0003] Application number CN202420851311.8 discloses an anti-clogging screening machine, belonging to the field of screening equipment. It includes an organic fertilizer screening box, in which a screen is movably fitted inside. The top side of the screen is fixedly connected to the inside of the screening box via a mounting block. An impact component, including a cylinder, is fixedly connected to the inside of the screening box. This anti-clogging screening machine, by setting the impact component, facilitates impact on the bottom of the screen during organic fertilizer screening, causing the screen to vibrate. This not only accelerates the screening speed of organic fertilizer but also prevents organic fertilizer particles from clogging in the screen mesh. Simultaneously, the mounting block allows the screen to be disassembled from the screening box for cleaning, further preventing clogging and facilitating the use of the screening machine. However, a drawback is the simple design of the power transmission structure, which often results in significant vibration due to unstable motion transitions. This reduces the stability of the equipment operation and easily causes component wear, shortening the equipment's service life. Utility Model Content

[0004] The purpose of this invention is to provide an anti-clogging screening machine that solves the problem that the simple power transmission structure design often results in large vibrations due to unstable motion transitions, which reduces the stability of equipment operation, easily causes component wear, and shortens the service life of the equipment.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an anti-clogging screening machine, including a support assembly, a braking assembly, a limiting assembly and a screen scraper assembly. The top side of the support assembly is provided with a braking assembly, the middle part is provided with a limiting assembly, and the top side of the support assembly is also provided with a screen scraper assembly.

[0007] The motor is fixedly mounted on the top of the base of the motor. The output shaft of the motor is connected to the transmission wheel via a transmission belt. The transmission wheel is fixedly mounted on the side of the screen box support. Limiting rings are fitted on the two ends of the shaft. The limiting rings are used to limit the axial displacement of the transmission wheel. One end of the transmission wheel extends outward to form a transmission rod. The end of the transmission rod away from the shaft of the transmission wheel is hinged to one end of the hinge support rod via a conversion hinge. The other end of the hinge support rod is hinged to one end of the shock absorption device via a movable hinge. The conversion hinge is configured to convert the circular motion of the transmission wheel into the linear motion of the hinge support rod.

[0008] Furthermore, the top of the support frame is fixedly connected to the screen box fixing bracket, and the discharge hopper is fixedly connected to the bottom of the screen box fixing bracket; the motor bracket is fixedly connected to the bottom end of the support frame, and the screen box is movably disposed on the top of the screen box fixing bracket; an elastic screen surface is fixedly installed inside the screen box.

[0009] Furthermore, the motor base is fixedly installed on the top of the motor bracket.

[0010] Furthermore, the bottom sides of the screen box are symmetrically fixedly connected with limiting plates, and the bottom of the limiting plates is provided with limiting slides extending in the front-back direction; two sets of movable wheels are symmetrically rotatably installed on both sides of the screen box fixing bracket, and the movable wheels slide in cooperation with the limiting slides.

[0011] Furthermore, the bottom of the shock-absorbing device is fixedly connected to the outer side wall of the screen box.

[0012] Furthermore, when the motor is driven, it drives the transmission wheel to rotate via the transmission belt. After the motion mode is changed by the switching hinge, the screen box is driven to reciprocate back and forth on the movable wheel along the limiting slide via the shock absorption device.

[0013] Furthermore, the chutes are symmetrically opened on both sides of the screen box and extend horizontally. The second motor is fixedly installed on the top side of the screen box fixing bracket. The output shaft of the second motor is fixedly connected to a threaded rod, and a threaded hole limiting plate with threaded engagement is sleeved on the outer periphery of the threaded rod. The scraper passes through the chutes and fits against the top of the elastic screen surface, and one end of it is fixedly connected to the threaded hole limiting plate. Both the threaded rod and the threaded hole limiting plate are set on the outer wall of the screen box.

[0014] Furthermore, when the second motor is driven, it drives the threaded rod to rotate, causing the threaded hole limiting plate to move horizontally along the threaded rod, which in turn drives the scraper to scrape horizontally along the elastic screen surface.

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

[0016] (1) The anti-clogging screening machine of this utility model can efficiently convert the rotational power of the motor into the reciprocating motion required by the screen box through the installed braking component, providing continuous and stable power for screening operations. At the same time, the vibration and impact during the movement are reduced by the shock absorption structure, thereby improving the stability and service life of the equipment.

[0017] (2) The anti-clogging screening machine of this utility model can scrape and clean the screen surface in real time through the installed screen scraper assembly, remove the material that clogs the screen holes in time, avoid the screen surface from clogging and reduce the screening efficiency, ensure that the screen surface is always unobstructed, and maintain the continuous and efficient screening capacity of the equipment.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the support assembly of an anti-clogging screening machine according to the present invention;

[0021] Figure 2 This is a schematic diagram of the braking component structure of an anti-clogging screening machine according to the present invention;

[0022] Figure 3 This is a schematic diagram of the limiting component structure of an anti-clogging screening machine according to the present invention;

[0023] Figure 4This is a schematic diagram of the screen scraper assembly structure of an anti-clogging screening machine according to the present invention;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the diagram: 1. Support assembly; 2. Braking assembly; 3. Limiting assembly; 4. Screen scraper assembly; 101. Support frame; 102. Screen box fixing bracket; 103. Discharge hopper; 104. Motor I bracket; 105. Screen box; 106. Elastic screen surface; 201. Motor I base; 202. Motor I; 203. Transmission belt; 204. Limiting ring; 205. Transmission wheel; 206. Transmission rod; 207. Conversion hinge; 208. Hinge support rod; 209. Movable hinge; 2010. Shock absorption device; 301. Limiting plate; 302. Limiting slide; 303. Movable wheel; 401. Slide groove; 402. Motor II; 403. Threaded rod; 404. Scraper; 405. Threaded hole limiting plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4 As shown, this utility model is an anti-clogging screening machine, including a support assembly 1, a braking assembly 2, a limiting assembly 3 and a screen scraper assembly 4. The top side of the support assembly 1 is provided with the braking assembly 2, the middle part is provided with the limiting assembly 3, and the top side of the support assembly 1 is also provided with the screen scraper assembly 4.

[0028] Motor 202 is fixedly mounted on the top of motor base 201. The output shaft of motor 202 is connected to transmission wheel 205 via transmission belt 203. Transmission wheel 205 is fixedly mounted on the side of screen box fixing bracket 102. Limiting rings 204 are respectively fitted on the two ends of its rotating shaft. The limiting rings 204 are used to limit the axial displacement of transmission wheel 205. One end of transmission wheel 205 extends outward to form transmission rod 206. The end of transmission rod 206 away from the rotating shaft of transmission wheel is hinged to one end of hinge support rod 208 via conversion hinge 207. The other end of hinge support rod 208 is hinged to one end of shock absorption device 2010 via movable hinge 209. Conversion hinge 207 is constructed to convert the circular motion of transmission wheel 205 into the forward and backward linear motion of hinge support rod 208. It can efficiently convert the rotational power of motor into the reciprocating motion required by screen box, providing continuous and stable power for screening operation. At the same time, the shock absorption structure reduces the vibration and impact during the movement, improving the stability and service life of equipment operation.

[0029] The top of the support frame 101 is fixedly connected to the screen box fixing bracket 102, and the discharge hopper 103 is fixedly connected to the bottom of the screen box fixing bracket 102; the motor bracket 104 is fixedly connected to the bottom of the support frame 101, and the screen box 105 is movably set on the top of the screen box fixing bracket 102; the screen box 105 has an elastic screen surface 106 fixedly installed inside, which provides a stable support foundation for the whole machine and can reliably support the core structure such as the screen box and power components. At the same time, the discharge hopper realizes the orderly discharge of the screened material, ensuring the overall stability of the equipment operation and the smoothness of material conveying.

[0030] The motor base 201 is fixedly installed on the top of the motor bracket 104.

[0031] Limiting plates 301 are symmetrically fixedly connected to the bottom two sides of the screen box 105. The bottom of the limiting plates 301 is provided with limiting slides 302 extending in the front-back direction. Two sets of movable wheels 303 are symmetrically rotatably installed on both sides of the screen box fixing bracket 102. The movable wheels 303 slide and cooperate with the limiting slides 302 to accurately limit the movement trajectory of the screen box, prevent the screen box from deviating or shaking during reciprocating motion, and ensure that the screen box always moves stably in the set direction, effectively improving the accuracy of material screening and the safety of equipment operation.

[0032] The bottom of the shock-absorbing device 2010 is fixedly connected to the outer side wall of the screen box 105.

[0033] When the motor 202 is driven, it drives the transmission wheel 205 to rotate through the transmission belt 203. After the motion mode is changed by the conversion hinge 207, the screen box 105 is driven to move back and forth on the movable wheel 303 along the limit slide 302 through the shock absorption device 2010.

[0034] The chute 401 is symmetrically opened on both sides of the screen box 105 and extends horizontally. The second motor 402 is fixedly installed on the top side of the screen box fixing bracket 102. The output shaft of the second motor 402 is fixedly connected to the threaded rod 403. The outer circumference of the threaded rod 403 is fitted with a threaded hole limiting plate 405 that is threadedly engaged with it. The scraper 404 passes through the chute 401 and is in contact with the top of the elastic screen surface 106. One end of the scraper is fixedly connected to the threaded hole limiting plate 405. The threaded rod 403 and the threaded hole limiting plate 405 are both set on the outer wall of the screen box 105.

[0035] When the motor 402 is driven, it drives the threaded rod 403 to rotate, causing the threaded hole limiting plate 405 to move horizontally along the threaded rod 403. This, in turn, drives the scraper 404 to scrape horizontally along the elastic screen surface 106, which can scrape and clean the screen surface in real time, remove the material blocking the screen holes in time, avoid the screen surface from being blocked and causing a decrease in screening efficiency, ensure that the screen surface is always unobstructed, and maintain the continuous and efficient screening capacity of the equipment.

[0036] In use, first prepare for startup by placing the material to be screened on the elastic screen surface 106 inside the screen box 105. Check the connection status of each component to ensure that the support frame 101 in the bracket assembly 1 is securely fixed to the screen box fixed bracket 102. The motor 202 is fixed to the motor bracket 104 via the motor base 201, and the scraper 404 is in close contact with the elastic screen surface 106. Then, start the screening operation by starting the motor 202. The power drives the transmission wheel 205 to rotate via the transmission belt 203. The transmission rod 206 rotates with the transmission wheel 205, and drives the hinge support rod 208 to move back and forth via the conversion hinge 207. The movement is transmitted through the movable hinge 209 and the shock absorption device 208. 010 is transferred to the screen box 105, which moves back and forth on the movable wheel 303 along the limiting slide 302. The material is screened on the elastic screen surface 106, and qualified material falls into the discharge hopper 103 for discharge. At the same time, anti-clogging cleaning is performed. Motor 2 402 is started, and the threaded rod 403 rotates to drive the threaded hole limiting plate 405 to move horizontally. The scraper 404 moves along the slide groove 401 with the threaded hole limiting plate 405 to scrape off the blockage on the elastic screen surface 106 and ensure that the screen holes are unobstructed. Finally, the machine is stopped to finish. After screening is completed, motor 1 202 and motor 2 402 are turned off in sequence, and the residual material in the screen box 105 and the screening product collected in the discharge hopper 103 are cleaned. Throughout the process, all components work together. The support component 1 provides a supporting foundation for the whole machine. The screen box fixing bracket 102 carries the screen box 105 and related parts. The braking component 2 serves as the power source for screening, converting the motor's rotational motion into the screen box's reciprocating motion. The limit component 3 ensures the stability of the screen box's movement trajectory to improve screening accuracy. The screen scraper component 4 works in conjunction with the screening action to remove blockages in real time, ensuring the equipment operates continuously and efficiently.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-clogging screening machine, comprising a support assembly (1), a braking assembly (2), a limiting assembly (3), and a screen scraper assembly (4), characterized in that: The top side of the bracket assembly (1) is provided with a braking assembly (2), the middle part is provided with a limiting assembly (3), and the top side of the bracket assembly (1) is also provided with a screen scraper assembly (4). The braking assembly (2) includes a motor base (201), a motor (202), a transmission belt (203), a limiting ring (204), a transmission wheel (205), a transmission rod (206), a conversion hinge (207), a hinge support rod (208), a movable hinge (209), and a shock absorption device (2010). The motor (202) is fixedly mounted on the top of the motor base (201), and the output shaft of the motor (202) is connected to the transmission wheel (205) via the transmission belt (203). The transmission wheel (205) is fixedly mounted on the side end of the screen box fixing bracket (102), and its two ends have rotating shafts. Each of the drive wheels (205) is fitted with a limiting ring (204) to limit the axial displacement of the drive wheel (205). One end of the drive wheel (205) extends outward to form a drive rod (206). The end of the drive rod (206) away from the drive wheel shaft is hinged to one end of the hinge support rod (208) through a conversion hinge (207). The other end of the hinge support rod (208) is hinged to one end of the shock absorption device (2010) through a movable hinge (209). The conversion hinge (207) is configured to convert the circular motion of the drive wheel (205) into the forward and backward linear motion of the hinge support rod (208).

2. The anti-clogging screening machine according to claim 1, characterized in that: The support assembly (1) includes a support frame (101), a screen box fixing bracket (102), a discharge hopper (103), a motor bracket (104), a screen box (105), and an elastic screen surface (106). The top of the support frame (101) is fixedly connected to the screen box fixing bracket (102), and the discharge hopper (103) is fixedly connected to the bottom of the screen box fixing bracket (102). The motor bracket (104) is fixedly connected to the bottom of the support frame (101), and the screen box (105) is movably disposed on the top of the screen box fixing bracket (102). An elastic screen surface (106) is fixedly installed inside the screen box (105).

3. The anti-clogging screening machine according to claim 2, characterized in that: The motor base (201) is fixedly installed on the top of the motor bracket (104).

4. The anti-clogging screening machine according to claim 2, characterized in that: The limiting component (3) includes a limiting plate (301), a limiting slide (302), and a movable wheel (303). The limiting plate (301) is symmetrically fixedly connected to both sides of the bottom of the screen box (105). The limiting plate (301) has a limiting slide (302) extending in the front-back direction at the bottom. Two sets of movable wheels (303) are symmetrically rotatably installed on both sides of the screen box fixing bracket (102). The movable wheels (303) slide in cooperation with the limiting slide (302).

5. The anti-clogging screening machine according to claim 2, characterized in that: The bottom of the shock-absorbing device (2010) is fixedly connected to the outer side wall of the sieve box (105).

6. The anti-clogging screening machine according to claim 4, characterized in that: When the motor (202) is driven, the transmission wheel (205) is rotated by the transmission belt (203). After the motion mode is changed by the conversion hinge (207), the screen box (105) is driven to move back and forth on the movable wheel (303) along the limit slide (302) by the shock absorption device (2010).

7. The anti-clogging screening machine according to claim 2, characterized in that: The screen scraper assembly (4) includes a chute (401), a second motor (402), a threaded rod (403), a scraper (404), and a threaded hole limiting plate (405). The chute (401) is symmetrically opened on both sides of the screen box (105) and extends horizontally. The second motor (402) is fixedly installed on the top side of the screen box fixing bracket (102). The output shaft of the second motor (402) is fixedly connected to the threaded rod (403). The outer periphery of the threaded rod (403) is fitted with a threaded hole limiting plate (405) that is threadedly engaged with it. The scraper (404) passes through the chute (401) and is in contact with the top of the elastic screen surface (106). One end of the scraper is fixedly connected to the threaded hole limiting plate (405). The threaded rod (403) and the threaded hole limiting plate (405) are both located on the outer wall of the screen box (105).

8. The anti-clogging screening machine according to claim 7, characterized in that: When the second motor (402) is driven, it drives the threaded rod (403) to rotate, causing the threaded hole limiting plate (405) to move horizontally along the threaded rod (403), which in turn drives the scraper (404) to scrape horizontally along the elastic screen surface (106).

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