Disc type vibrating screen

Abstract

The utility model relates to a disc type vibrating screen which comprises a supporting frame, a screen body, two hydraulic cylinders, a spring device and a vibrating device, the screen body is obliquely arranged, a transverse rod in the front-back direction is arranged in the screen body in a penetrating mode, and the hydraulic cylinders are used for adjusting the inclination degree of the screen body; the spring device is used for supporting the screen body; by the adoption of the technical scheme, materials are poured in from the upper portion of the left end of the screen body and then discharged from the right end of the screen body, in the process, the inclination angle of the screen body can be adjusted through the double hydraulic cylinders, the larger the inclination angle is, the higher the sliding speed of the materials is, and the vibration force of the materials is greatly improved. And the two ends of the transverse rod are rotationally installed through bearings, the vibration devices arranged in a mirror image mode drive the transverse rod to rotate at a high speed, so that the whole screen body is driven to vibrate, then the spring devices can effectively absorb vibration impact, the materials can be screened evenly and stably, and the screening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of vibrating screens, and in particular to a disc-type vibrating screen. Background Technology

[0002] Currently, material screening is a crucial process in industrial production, widely used in mining, building materials, chemical, food, and other industries. The main function of a vibrating screen is to screen and classify materials. It achieves this by causing materials to roll and bounce on the screen surface through vibration. Specifically, vibrating screens can effectively remove impurities, classify, and filter various powders, granules, and slurries. Their primary purpose is to separate materials of different particle sizes to meet the stringent particle size requirements of subsequent production processes, ensuring product quality and production efficiency.

[0003] The above-mentioned existing technical solutions have the following drawbacks: the tilt angle of the screen body of the vibrating screen is usually fixed, which makes it impossible to flexibly adjust the downward speed of the material according to the characteristics of different materials. In addition, the excitation device of traditional vibrating screens mostly adopts single-sided drive, resulting in asynchronous vibration on both sides of the screen body. Utility Model Content

[0004] The purpose of this invention is to provide a disc-type vibrating screen to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A disc-type vibrating screen, comprising:

[0007] Support frame;

[0008] The screen body is inclined and has a first through hole that runs through the front and back on the front side, and a second through hole that runs through the rear side on the rear side. The first through hole and the second through hole are coaxially aligned. Bearings are installed in both the first through hole and the second through hole. A crossbar runs through the inside of the screen body in the front-back direction, and both ends of the crossbar pass through and extend to the outside of the bearing.

[0009] Two hydraulic cylinders are provided, and the hydraulic cylinders are located on the top right side of the support frame. The hydraulic cylinders are used to adjust the inclination of the screen body.

[0010] The spring device has four spring devices, two of which are located at the top of the movable end of the hydraulic cylinder, and the other two are located at the top right side of the support frame. The spring devices are used to support the screen lifting body.

[0011] The screen body is provided with two vibration devices, which are respectively mirror images of the front and rear ends of the crossbar. The vibration devices are used to provide vibration force to the entire screen body.

[0012] By adopting the above technical solution, the material is poured in from the upper left end of the screen body and then discharged from the right end of the screen body. During this process, the double hydraulic cylinder can adjust the tilt angle of the screen body. The larger the tilt angle, the faster the material slides down, thus adapting to the screening requirements of different materials. The two ends of the crossbar are rotated and installed through bearings. The mirror-set vibration device drives the crossbar to rotate at high speed, so that the screen body is subjected to uniform force, thereby driving the entire screen body to vibrate. Then, with the cooperation of the four spring devices, the spring devices can effectively absorb the vibration impact, which facilitates uniform and stable screening of materials and improves screening efficiency.

[0013] In a further embodiment, the spring device includes:

[0014] The fixed arm is fixedly installed on the outside of the screen body.

[0015] The first spring assembly includes a rectangular box and a first spring. The rectangular box has a completely open structure at one end near the screen body. The first spring is arranged inside the rectangular box from front to back. The front end of the first spring is fixedly connected to the inside of the rectangular box, and the rear end of the first spring is fixedly connected to the fixed arm.

[0016] The second spring assembly includes a second spring, a third spring, and an ear plate. The second spring is spaced apart at the left end of the third spring. The second spring and the third spring are vertically arranged at the top of the rectangular box. The top ends of the second spring and the third spring are fixedly connected to the bottom end of the ear plate. The rear end of the ear plate is fixedly connected to the fixed arm.

[0017] By adopting the above technical solution, since the vibrating screen will generate multi-directional vibration during operation, the first spring, which is set from front to back, can absorb the vibration in the front-to-back direction of the screen body. The second and third springs, which are set vertically, can absorb the vibration in the up-and-down direction of the screen body. The first spring is directly connected to the fixed arm, and the second and third springs are connected to the fixed arm through a connecting plate, so that the fixed arm can efficiently transmit vibration, ensure the stability of the screen box vibration, and thus improve the screening efficiency of the screen box.

[0018] In a further embodiment, the vibration device includes:

[0019] An eccentric block, which is sleeved on the outside of the crossbar;

[0020] And a servo motor, wherein the output shaft of the servo motor is fixedly connected to the end of the crossbar away from the screen body.

[0021] By adopting the above technical solution, the output shaft of the servo motor drives the crossbar to rotate at high speed, and then the eccentric block generates vibration force in different directions under the action of centrifugal force, which drives the entire screen body to vibrate.

[0022] In a further embodiment, the sieve body includes a first side plate, a second side plate, and a connecting plate. The first side plate is spaced apart and disposed on the front side of the second side plate. The right ends of the first side plate and the second side plate are fixedly connected to the connecting plate. Multiple screens are installed inside the sieve body from top to bottom.

[0023] In a further embodiment, the mesh size of the plurality of screens decreases progressively from top to bottom.

[0024] By adopting the above technical solution, the screen aperture size decreases from top to bottom, forming a filtration channel that first coarses and then washes. After the material enters the screen body, large particles are first intercepted by the upper screen, while small and fine particles are finally screened through the lower screen, thus achieving the purpose of multi-stage material screening.

[0025] In a further embodiment, two clamps are fitted at both ends of the crossbar, the two clamps are spaced apart, and the eccentric block is disposed between the two clamps.

[0026] By adopting the above technical solution, the clamp can fix the eccentric block on the crossbar and prevent the eccentric block from falling off the crossbar.

[0027] In summary, this utility model has the following beneficial effects:

[0028] 1. By pouring material into the screen from the top left end and then discharging it from the right end, the double hydraulic cylinders can adjust the tilt angle of the screen. The larger the tilt angle, the faster the material slides down, thus adapting to the screening needs of different materials. The two ends of the crossbar are rotated and installed by bearings. The mirror-set vibration device drives the crossbar to rotate at high speed, so that the screen body is subjected to uniform force, thereby driving the entire screen body to vibrate. Then, with the cooperation of four spring devices, the spring devices can effectively absorb the vibration impact, which facilitates uniform and stable screening of materials and improves screening efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram illustrating the overall connection relationship of this utility model;

[0030] Figure 2 This is a schematic diagram illustrating the spring device of this utility model;

[0031] Figure 3 This is a schematic diagram illustrating the vibration device of this utility model.

[0032] In the diagram, 1. Support frame; 2. Screen body; 3. Crossbar; 4. Hydraulic cylinder; 5. Spring device; 51. Fixed arm; 52. First spring assembly; 521. Rectangular box; 522. First spring; 53. Second spring assembly; 531. Second spring; 532. Third spring; 533. Ear plate; 6. Vibration device; 61. Eccentric block; 62. Servo motor; 7. Screen. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0035] Example 1:

[0036] like Figures 1-2 As shown, a disc-type vibrating screen includes:

[0037] Support frame 1; sieve body 2, the sieve body 2 is inclined, a first through hole is opened on the front side of the sieve body 2 and a second through hole is opened on the rear side of the sieve body 2, the first through hole and the second through hole are coaxially aligned, bearings are installed in both the first through hole and the second through hole, a crossbar 3 is inserted in the sieve body 2 along the front-rear direction, both ends of the crossbar 3 pass through and extend to the outside of the bearing; hydraulic cylinder 4, two hydraulic cylinders 4 are provided, the hydraulic cylinders 4 are located on the top right side of the support frame 1, the hydraulic cylinders 4 are used to adjust the inclination of the sieve body 2; spring device 5, four spring devices 5 are provided, two spring devices 5 are located at the top of the movable end of the hydraulic cylinder 4, and the other two spring devices 5 are located at the top of the movable end of the hydraulic cylinder 4. The spring device 5 is located at the top right side of the support frame 1 to support the screen body 2; and the vibration device 6, of which there are two, which are respectively mirror images of the front and rear ends of the crossbar 3. The vibration device 6 is used to provide vibration force for the entire screen body 2; the screen body 2 includes a first side plate, a second side plate and a connecting plate. The first side plate is spaced apart on the front side of the second side plate. The right ends of the first side plate and the second side plate are fixedly connected to the connecting plate. Multiple screens 7 are installed inside the screen body 2 from top to bottom. The screen hole size of the multiple screens 7 decreases step by step from top to bottom; two clamps are fitted at both ends of the crossbar 3. The two clamps are spaced apart, and the eccentric block 61 is located between the two clamps.

[0038] like Figure 2 As shown, the spring device 5 includes a fixed arm 51, which is fixedly installed on the outside of the screen body 2; a first spring assembly 52, which includes a rectangular box 521 and a first spring 522; the end of the rectangular box 521 near the screen body 2 is a completely open structure; the first spring 522 is arranged from front to back inside the rectangular box 521; the front end of the first spring 522 is fixedly connected to the inside of the rectangular box 521; and the rear end of the first spring 522 is fixedly connected to the fixed arm 51; and a second spring assembly 53, which includes a second spring 531, a third spring 532, and an ear plate 533; the second spring 531 is spaced apart at the left end of the third spring 532; the second spring 531 and the third spring 532 are vertically arranged on the top of the rectangular box 521; the top ends of the second spring 531 and the third spring 532 are fixedly connected to the bottom end of the ear plate 533; and the rear end of the ear plate 533 is fixedly connected to the fixed arm 51.

[0039] like Figure 3 As shown, the vibration device 6 includes: an eccentric block 61, which is sleeved on the outside of the crossbar 3; and a servo motor 62, the output shaft of which is fixedly connected to the end of the crossbar 3 away from the screen body 2.

[0040] Specific implementation process: The screen body 2 is installed in the support frame 1. The tilt setting of the screen body 2 is set by two hydraulic cylinders 4 at the top left side of the support frame 1 to control the residence time of the material. The screen body 2 is connected by a fixed arm 51. The spring device 5 can provide elastic support and shock absorption. Two vibration devices 6 are installed at the ends of the crossbar 3. The eccentric block 61 is fixed to the crossbar 3 by a clamp. The output shaft of the servo motor 62 is connected to the end of the crossbar 3. Then, the material is fed from the high end of the screen body 2. The servo motor 62 is started to drive the eccentric block 61 to rotate and generate vibration force. The vibration force is transmitted to the screen body 2 through the crossbar 3, driving the entire screen body 2 to vibrate. The screen body 2 is composed of a first side plate, a second side plate and a connecting plate. Two layers of screen mesh 7 are installed inside from top to bottom. The screen mesh 7 of the upper layer has a larger screen hole size than the screen mesh of the lower layer. Finally, under the action of vibration and tilting, the material moves along the end face of the screen mesh 7 and passes through the screen layer by layer to realize the grading and screening of the material.

[0041] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A disc-type vibrating screen, characterized in that, include: Support frame (1); The sieve body (2) is inclined. A first through hole is opened on the front side of the sieve body (2) and a second through hole is opened on the rear side of the sieve body (2). The first through hole and the second through hole are coaxially aligned. Bearings are installed in both the first through hole and the second through hole. A crossbar (3) is passed through the inside of the sieve body (2) in the front-rear direction. Both ends of the crossbar (3) pass through and extend to the outside of the bearing. Hydraulic cylinder (4), two hydraulic cylinders (4) are provided, the hydraulic cylinder (4) is located on the top right side of the support frame (1), the hydraulic cylinder (4) is used to adjust the tilt of the screen body (2); Spring device (5), four spring devices (5) are provided, two spring devices (5) are located at the top of the movable end of the hydraulic cylinder (4), and the other two spring devices (5) are located at the top right side of the support frame (1). The spring devices (5) are used to support the screen lifting body (2). The vibrating device (6) is provided in two parts, which are respectively mirror images of the front and rear ends of the crossbar (3). The vibrating device (6) is used to provide vibration force for the entire screen body (2).

2. The disc-type vibrating screen according to claim 1, characterized in that: The spring device (5) includes: A fixed arm (51) is fixedly installed on the outside of the screen body (2). The first spring assembly (52) includes a rectangular box (521) and a first spring (522). The rectangular box (521) is fully open at one end near the screen body (2). The first spring (522) is arranged from front to back inside the rectangular box (521). The front end of the first spring (522) is fixedly connected to the inside of the rectangular box (521), and the rear end of the first spring (522) is fixedly connected to the fixed arm (51). The second spring assembly (53) includes a second spring (531), a third spring (532) and an ear plate (533). The second spring (531) is spaced apart at the left end of the third spring (532). The second spring (531) and the third spring (532) are vertically arranged at the top of the rectangular box (521). The top ends of the second spring (531) and the third spring (532) are fixedly connected to the bottom end of the ear plate (533). The rear end of the ear plate (533) is fixedly connected to the fixed arm (51).

3. A disc-type vibrating screen according to claim 1, characterized in that: The vibration device (6) includes: An eccentric block (61) is sleeved on the outside of the crossbar (3); And a servo motor (62), the output shaft of which is fixedly connected to the end of the crossbar (3) away from the screen body (2).

4. A disc-type vibrating screen according to claim 1, characterized in that: The sieve body (2) includes a first side plate, a second side plate and a connecting plate. The first side plate is spaced apart on the front side of the second side plate. The right ends of the first side plate and the second side plate are fixedly connected to the connecting plate. Multiple screens (7) are installed inside the sieve body (2) from top to bottom.

5. A disc-type vibrating screen according to claim 4, characterized in that: The mesh size of the multiple screens (7) decreases progressively from top to bottom.

6. A disc-type vibrating screen according to claim 3, characterized in that: Two clamps are fitted at both ends of the crossbar (3), with the two clamps spaced apart, and the eccentric block (61) is positioned between the two clamps.

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