A screening device

Abstract

The utility model discloses a screening device, including frame, screening part and turning over part: the screening part sets up at the top of frame, this screening part has the sieve box of sliding setting in the top of frame, the inside of sieve box is provided with the screen for screening particle, the turning over part sets up in the inside of screening part, the turning over part has the support frame of setting up in the inside of sieve box, the inside vertical rotation of support frame is provided with the rotating frame, the inside transverse rotation of rotating frame is provided with the transmission shaft, the side of transmission shaft is provided with the vane for turning over particle, the inside of rotating frame is provided with transmission structure, and the horizontal rotation of rotating frame is to drive transmission shaft autorotation and turns over the particle on screen operation. The utility model discloses through being provided with turning over part can utilize the horizontal rotation of rotating frame, and the autorotation of transmission shaft is driven with the help of transmission structure, and then makes the vane turn over the particle on screen, effectively avoids the particle accumulation, increases the contact opportunity of particle and screen, improves screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of asphalt modifier processing technology, specifically a screening device. Background Technology

[0002] Asphalt modifiers are natural or synthetic organic or inorganic materials added to asphalt or asphalt mixtures. They can be melted or dispersed in asphalt to improve or enhance its road performance. In the production process of asphalt modifiers, screening devices are usually required. The particle size of the asphalt modifier affects its dispersibility and modification effect in asphalt. Screening devices can separate particles that do not meet the particle size requirements, ensuring that the final product has a uniform particle size, so that the modifier can be better mixed with asphalt and fully exert its modification effect.

[0003] In existing screening devices, the asphalt modifier to be screened enters the device through the feed inlet and falls onto the screen. The vibrating device drives the screen to vibrate, allowing asphalt modifier particles smaller than the screen mesh size to pass through smoothly. During the screening process, the asphalt modifier particles continuously accumulate on the screen. Because the asphalt modifier has a certain degree of viscosity, the particles will stick together and also adhere to the mesh of the screen, affecting the screening efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a screening device to solve the problem mentioned in the background art. In the screening process of existing screening devices, the asphalt modifier to be screened enters the device from the feed inlet and falls onto the screen. The vibrating device drives the screen to vibrate, so that asphalt modifier particles smaller than the screen mesh can pass through the screen smoothly. During the screening process, the asphalt modifier particles continuously accumulate on the screen. Because the asphalt modifier has a certain viscosity, the particles will stick together and also adhere to the mesh of the screen, affecting the screening efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screening device, comprising a frame, a screening section, and a turning section:

[0006] The screening section is located at the top of the frame. The screening section has a screen box that is slidably mounted on the top of the frame. The screen box contains a screen for screening particles. The turning section is located inside the screening section. The turning section has a support frame located inside the screen box. A rotating frame is vertically rotatable inside the support frame. A drive shaft is horizontally rotatable inside the rotating frame. Blades for turning the particles are provided on the side of the drive shaft. The rotating frame contains a transmission structure. The rotating frame rotates horizontally to drive the drive shaft to rotate and turn the particles on the screen.

[0007] By adopting the above technical solution, the horizontal rotation of the rotating frame can be used to drive the transmission shaft to rotate, thereby causing the blades to tumble the particles on the screen, effectively preventing particle accumulation, increasing the contact opportunity between particles and the screen, and improving screening efficiency.

[0008] Preferably, the frame has a limiting groove on its side, the screen box has a slider on its side, the slider is embedded in the limiting groove and is vertically slidably connected to the frame, the slider has springs at its top and bottom, the springs are located in the limiting groove, the screen box has a vibrator at its bottom, the screen box has a discharge port at its bottom, and the screen box has a side door that can be rotated on its side.

[0009] By adopting the above technical solution, the vibrator can drive the screen box to vibrate. The slider slides in the limiting groove and works with the spring to buffer and stabilize the vibration, so that the particles on the screen can pass through the screen better for screening. The screened particles are discharged from the discharge port. The side door makes it convenient to clean and maintain the inside of the screen box.

[0010] Preferably, the flipping part also has a rotating groove a located at the center of the support frame, the rotating frame passes vertically through the rotating groove a and is rotatably connected to the support frame, and a motor is provided at the top of the support frame, the output end of the motor being connected to the top of the rotating frame.

[0011] By adopting the above technical solution, the motor can be used to provide power for the rotation of the rotating frame, and the rotating groove a plays a supporting and limiting role for the rotating frame, ensuring that the rotating frame can rotate stably vertically within the support frame.

[0012] Preferably, the flipping part also has a rotating groove b that is laterally opened inside the rotating frame, and a power shaft is provided for lateral rotation inside the rotating groove b.

[0013] By adopting the above technical solution, the power shaft can be rotated laterally within the rotating groove b.

[0014] Preferably, the flipping part also has a bevel tooth a provided at the bottom of the support frame, and a bevel tooth b provided at one end of the power shaft, which meshes with the bevel tooth a.

[0015] By adopting the above technical solution, when the rotating frame rotates horizontally, the bevel tooth b at one end of the power shaft meshes with the bevel tooth a fixed at the bottom of the support frame, thereby converting the horizontal rotational motion of the rotating frame into the rotational motion of the power shaft itself.

[0016] Preferably, the flipping part also has a transmission belt disposed at the end of the power shaft away from the bevel tooth b, the other end of the transmission belt being connected to the transmission shaft, and the transmission shaft being connected to the power shaft via the transmission belt.

[0017] By adopting the above technical solution, the rotational power of the power shaft can be transmitted to the transmission shaft through the transmission belt, enabling the transmission shaft to rotate, thereby driving the blades to tumble the particles on the screen.

[0018] Preferably, there are several blades, and the blades are arranged in a central rotational symmetric structure around the rotation center of the drive shaft, and the blades abut against the surface of the screen.

[0019] By adopting the above technical solution, the blades can be rotated under the drive of the transmission shaft, which can evenly turn over the particles on the screen.

[0020] Preferably, the flipping part also has a rotating groove c opened inside the rotating frame, the drive shaft is embedded in the rotating groove c and rotatably connected to the rotating frame, and there are two drive shafts, which are arranged in a central rotational symmetric structure around the rotation center of the rotating frame.

[0021] By adopting the above technical solution, the two drive shafts can rotate stably in the rotating groove c. The rotating groove c provides space for the drive shafts to be installed and rotated. The two drive shafts have a central rotational symmetry structure, which can turn the particles on the screen from different positions when the rotating frame rotates, thus expanding the turning range.

[0022] Compared with the prior art, the beneficial effects of this utility model are: by setting up a turning part, the horizontal rotation of the rotating frame can be used to drive the transmission shaft to rotate by means of the transmission structure, thereby causing the blades to turn the particles on the screen, effectively avoiding particle accumulation, increasing the contact opportunity between particles and the screen, and improving screening efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this application;

[0025] Figure 3 This is a schematic cross-sectional view of the flipping part in this application;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating frame in this application;

[0027] Figure 5 This is a schematic diagram of the rotating frame structure of this application;

[0028] Figure 6 This is a schematic diagram of the transmission structure of the flipping part in this application.

[0029] In the diagram: 1. Frame; 101. Limiting groove; 2. Screening section; 201. Screen box; 202. Slider; 203. Spring; 204. Vibrator; 205. Screen; 206. Discharge port; 207. Side door; 3. Tilting section; 301. Support frame; 302. Conical tooth a; 303. Rotating groove a; 304. Rotating frame; 305. Rotating groove b; 306. Rotating groove c; 307. Power shaft; 308. Conical tooth b; 309. Transmission shaft; 310. Blade; 311. Transmission belt; 312. Motor. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0031] Example 1

[0032] Please see Figure 1 , Figure 2 and Figure 3 This embodiment provides a technical solution: a screening device, including a frame 1, a screening section 2, and a turning section 3.

[0033] The screening section 2 is located on top of the frame 1. The screening section 2 has a screen box 201 slidably mounted on top of the frame 1. Inside the screen box 201 is a screen 205 for screening particles. A limiting groove 101 is formed on the side of the frame 1. A slider 202 is provided on the side of the screen box 201. The slider 202 is embedded in the limiting groove 101 and vertically slidably connected to the frame 1. Springs 203 are provided above and below the slider 202, and the springs 203 are located within the limiting groove 101. A vibrating device is provided at the bottom of the screen box 201. The bottom of the screen box 201 is provided with a discharge port 206. The side of the screen box 201 is provided with a side door 207. The screen box 201 can be driven to vibrate by the vibrator 204. The slider 202 slides in the limiting groove 101 and works with the spring 203 to buffer and stabilize the vibration, so that the particles on the screen 205 can pass through the screen 205 better for screening. The screened particles are discharged from the discharge port 206. The side door 207 facilitates the cleaning and maintenance of the inside of the screen box 201.

[0034] The turning part 3 is located inside the screening part 2. The turning part 3 has a support frame 301 located inside the screen box 201. A rotating frame 304 is vertically rotatably arranged inside the support frame 301. A drive shaft 309 is horizontally rotatably arranged inside the rotating frame 304. Blades 310 for turning the particles are arranged on the side of the drive shaft 309. A transmission structure is arranged inside the rotating frame 304. The horizontal rotation of the rotating frame 304 drives the drive shaft 309 to rotate and turn the particles on the screen 205. By using the horizontal rotation of the rotating frame 304, the drive shaft 309 is driven to rotate by the transmission structure, which in turn causes the blades 310 to turn the particles on the screen 205, effectively avoiding particle accumulation, increasing the contact opportunity between the particles and the screen 205, and improving screening efficiency.

[0035] Example 2

[0036] Please see Figure 4 , Figure 5 and Figure 6 This embodiment provides a technical solution: a screening device, including a turning part 3, a rotating frame 304, and a transmission shaft 309.

[0037] A rotating groove a303 is provided at the center of the support frame 301. The rotating frame 304 passes vertically through the rotating groove a303 and is rotatably connected to the support frame 301. A motor 312 is provided on the top of the support frame 301. The output end of the motor 312 is connected to the top of the rotating frame 304. The motor 312 can provide power for the rotation of the rotating frame 304. The rotating groove a303 provides support and limits the rotating frame 304, ensuring that the rotating frame 304 can rotate stably vertically within the support frame 301.

[0038] A rotating groove b305 is provided laterally inside the rotating frame 304. A power shaft 307 is provided laterally inside the rotating groove b305, which can make the power shaft 307 rotate laterally inside the rotating groove b305.

[0039] A bevel tooth a302 is integrally provided at the bottom of the support frame 301, and a bevel tooth b308 is provided at one end of the power shaft 307. The bevel tooth b308 is meshed with the bevel tooth a302. When the rotating frame 304 rotates horizontally, the bevel tooth b308 at one end of the power shaft 307 meshes with the bevel tooth a302 fixed at the bottom of the support frame 301, thereby converting the horizontal rotational motion of the rotating frame 304 into the rotational motion of the power shaft 307 itself.

[0040] A transmission belt 311 is provided at the end of the power shaft 307 away from the bevel tooth b308. The other end of the transmission belt 311 is connected to the transmission shaft 309. The transmission shaft 309 is connected to the power shaft 307 through the transmission belt 311.

[0041] The rotational power of the power shaft 307 can be transmitted to the transmission shaft 309 through the transmission belt 311, so that the transmission shaft 309 can rotate on its own, thereby driving the blades 310 to tumble the particles on the screen 205.

[0042] Several blades 310 are provided, and the blades 310 are arranged in a central rotational symmetric structure around the rotation center of the transmission shaft 309. The blades 310 abut against the surface of the screen 205.

[0043] When the blade 310 rotates under the drive of the transmission shaft 309, it can evenly turn over the particles on the screen 205.

[0044] A rotating groove c306 is transversely formed inside the rotating frame 304. The drive shaft 309 is embedded in the rotating groove c306 and rotatably connected to the rotating frame 304. There are two drive shafts 309, which are centrally rotationally symmetrical about the rotation center of the rotating frame 304. This allows the two drive shafts 309 to rotate stably within the rotating groove c306. The rotating groove c306 provides space for the installation and rotation of the drive shafts 309. The centrally rotationally symmetrical structure of the two drive shafts 309 allows the particles on the screen 205 to be turned over from different positions when the rotating frame 304 rotates, thus expanding the turning range.

[0045] Working principle: First, power on the device. Then, place the granular material to be screened onto the screen 205 inside the screen box 201. Start the vibrator 204, which drives the screen box 201 to vibrate. The slider 202 on the side of the screen box 201 slides vertically within the limiting groove 101 on the side of the frame 1. Simultaneously, the springs 203 above and below the slider 202 buffer and stabilize the vibration, allowing the particles on the screen 205 to pass through the screen 205 more effectively under the vibration. The screened particles exit the screen box 201. 1. The material is discharged from the bottom outlet 206. At the same time, the motor 312 on the top of the support frame 301 is started. The motor 312 drives the rotating frame 304 to rotate vertically in the rotating groove a303 at the center of the support frame 301. When the rotating frame 304 rotates horizontally, the bevel tooth b308 at one end of the horizontally arranged power shaft 307 inside the rotating frame 304 meshes with the bevel tooth a302 fixed at the bottom of the support frame 301, thereby converting the horizontal rotational motion of the rotating frame 304 into the rotation of the power shaft 307 itself in the rotating groove b303. The transverse rotational motion within 305 involves the power shaft 307 rotating, which transmits rotational power to the drive shaft 309 via a transmission belt 311 located at the end away from the bevel tooth b308. This causes the drive shaft 309 to rotate within the rotational groove c306 inside the rotating frame 304. Since the drive shaft 309 has several blades 310 arranged on its side in a centrally rotationally symmetrical structure around its rotation center and abutting against the surface of the screen 205, the rotation of the drive shaft 309 drives the blades 310 to rotate, thus purifying the particles on the screen 205. The flipping operation effectively avoids particle accumulation, increases the contact opportunity between particles and screen 205, and improves screening efficiency. Moreover, due to the two drive shafts 309 with a central rotational symmetry structure around the rotation center of the rotating frame 304, they can flip the particles on the screen 205 from different positions when the rotating frame 304 rotates, further expanding the flipping range and improving the screening effect. When it is necessary to clean and maintain the inside of the screen box 201, the side door 207 on the side of the screen box 201 can be rotated open.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screening device, characterized in that, include: frame; The screening section is located at the top of the frame and has a screen box that is slidably mounted on the top of the frame. The screen box is equipped with a screen for screening particles. The turning part is located inside the screening part. The turning part has a support frame located inside the screen box. A rotating frame is vertically rotatable inside the support frame. A drive shaft is horizontally rotatable inside the rotating frame. Blades for turning the particles are provided on the side of the drive shaft. A transmission structure is provided inside the rotating frame. The rotating frame rotates horizontally to drive the drive shaft to rotate and turn the particles on the screen.

2. The screening device according to claim 1, characterized in that: The frame has a limiting groove on its side, and the screen box has a slider on its side. The slider is embedded in the limiting groove and is vertically slidably connected to the frame. The slider has springs at its top and bottom, which are located in the limiting groove. The screen box has a vibrator at its bottom and a discharge port at its bottom. The screen box has a side door that can be rotated on its side.

3. The screening device according to claim 1, characterized in that: The flipping part also has a rotating slot a located at the center of the support frame. The rotating frame passes vertically through the rotating slot a and is rotatably connected to the support frame. A motor is installed at the top of the support frame, and the output end of the motor is connected to the top of the rotating frame.

4. A screening device according to claim 1, characterized in that: The flipping part also has a rotating groove b that is laterally opened inside the rotating frame, and a power shaft is provided for lateral rotation inside the rotating groove b.

5. A screening device according to claim 4, characterized in that: The flipping part also has a bevel tooth a provided at the bottom of the support frame, and a bevel tooth b provided at one end of the power shaft, which meshes with the bevel tooth a.

6. A screening device according to claim 5, characterized in that: The flipping part also has a transmission belt located at the end of the power shaft away from the bevel tooth b, and the other end of the transmission belt is connected to the transmission shaft, which is connected to the power shaft via the transmission belt.

7. A screening device according to claim 1, characterized in that: The blade is provided in several parts, and the blades are arranged in a central rotational symmetric structure around the rotation center of the drive shaft. The blades abut against the surface of the screen.

8. A screening device according to claim 1, characterized in that: The flipping part also has a rotating groove c inside the rotating frame. The drive shaft is embedded in the rotating groove c and rotatably connected to the rotating frame. There are two drive shafts, and the two drive shafts are in a central rotational symmetric structure around the rotation center of the rotating frame.

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