CN221934527U - Concrete screening device - Google Patents

Abstract

The utility model discloses a concrete screening device which comprises a base support, wherein a spring is arranged at the top end of the base support, a supporting frame is arranged at the top end of the spring, vibrating motors are arranged at the bottom ends of two sides of the supporting frame, a screening cylinder is arranged at the top end of the supporting frame, a metal screen is arranged in the screening cylinder, an upper transverse frame is arranged in the screening cylinder, a cleaning shaft is arranged on the upper transverse frame and is positioned right above the metal screen, a servo motor is arranged at the top end of the upper transverse frame, and the servo motor is connected with the cleaning shaft. According to the utility model, the screening cylinder and the cleaning shaft are arranged, and the screening cylinder can be driven to vibrate through the vibrating motor, so that screening operation can be performed on sand and stone, and in the screening process, the cleaning shaft on the upper transverse frame is driven to rotate through the servo motor, so that sand and stone adhered to the metal screen can be scraped off, the permeability of the metal screen is ensured, and the screening efficiency is ensured.

Description

A concrete screening device

Technical Field

The utility model relates to the technical field of concrete, in particular to a concrete screening device.

Background Art

Concrete is a general term for engineering composite materials that are cemented into a whole by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates; mixed with water (which may contain admixtures and additives) in a certain proportion, and then mixed to obtain cement concrete, also known as ordinary concrete. It is widely used in civil engineering. The screening device is a device that distinguishes materials by size. It mainly compares the diameter of the mesh on the metal screen with the diameter of the material to achieve the purpose of distinguishing and selecting the required materials. In the process of concrete manufacturing, sand and stone need to be screened, weighed and proportioned, and finally mixed with other admixtures to form concrete.

When the existing screening device is screening sand and gravel, some large sand and gravel particles will stick together due to high humidity, causing the larger sand and gravel particles to stick to the filter net, causing the filter net to be blocked, thereby reducing the screening efficiency. For this reason, we propose a concrete screening device that can solve the problem of sand and gravel particles sticking to the net.

Utility Model Content

The purpose of the utility model is to provide a concrete screening device to solve the problems raised in the above background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete screening device, comprising a base support, a spring is installed at the top of the base support, and a support frame is installed at the top of the spring, vibration motors are installed at the bottom ends of both sides of the support frame, a screening cylinder is installed at the top of the support frame, and a metal screen is installed inside the screening cylinder, an upper cross frame is installed inside the screening cylinder, and a cleaning shaft is installed on the upper cross frame, and the cleaning shaft is located directly above the metal screen, a servo motor is installed at the top of the upper cross frame, and the servo motor is connected to the cleaning shaft, and the bottom end of the cleaning shaft is connected to the top surface of the metal screen.

By adopting the above technical solution, the screening drum can be driven to vibrate by the vibration motor, so that the sand and gravel can be screened. During the screening process, the cleaning shaft on the upper horizontal frame is driven to rotate by the servo motor, so that the sand and gravel stuck on the metal screen can be scraped off, thereby ensuring the permeability of the metal screen and the screening efficiency.

Preferably, a universal wheel is installed at the bottom end of the base bracket, and the universal wheel is provided with a self-locking mechanism.

By adopting the above technical solution, the entire screening device can be moved by the universal wheels.

Preferably, springs are respectively installed at four corners of the bottom end of the support frame, and are connected to the top end of the base bracket through the springs.

By adopting the above technical solution, the shaking amplitude of the device when screening sand can be reduced through the energy storage of the spring.

Preferably, the screening cylinder is a cylindrical structure, with rotating shafts installed on both sides thereof, and a rotating structure is formed with the supporting frame through the rotating shafts.

By adopting the above technical solution, the screening drum can be rotated on the mounting frame.

Preferably, arc-shaped handles are installed at both ends of the screening cylinder.

By adopting the above technical solution, it is convenient for an operator to drive the screening drum to rotate by holding the handle.

Preferably, a lower cross frame is installed at the bottom end of the screening drum, and a counterweight rod is vertically installed at the bottom end of the lower cross frame, and a round metal ball is arranged at the bottom end of the counterweight rod.

By adopting the above technical solution, the center of gravity of the screening drum can be lowered by setting the counterweight rod.

Preferably, the upper cross frame and the cleaning shaft form a rotating structure.

By adopting the above technical solution, the cleaning shaft can be rotated on the upper cross frame.

Preferably, scrapers are installed on both sides of the cleaning shaft, and the scrapers have a certain inclination arc, and the bottom surface of the scrapers is in close contact with the top surface of the metal screen.

By adopting the above technical solution, the sand and gravel adhering to the metal screen can be scraped off by the rotation of the scraper.

Compared with the prior art, the beneficial effects of the utility model are:

1. By setting up the screening drum and the cleaning shaft, the vibration motor can drive the screening drum to vibrate, so that the sand and stone can be screened. During the screening process, the servo motor drives the cleaning shaft on the upper horizontal frame to rotate, so that the sand and stone adhering to the metal screen can be scraped off, thereby ensuring the permeability of the metal screen and the screening efficiency;

2. By setting up the scraper, when the cleaning shaft rotates, the scrapers installed on both sides have a certain inclination arc. During its rotation, the sand and stones stuck on the metal screen can be scraped off and broken up to prevent them from sticking to the screen.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of this application;

FIG2 is a schematic diagram of the overall structure of the present application;

FIG3 is a schematic diagram of the overall front view cross-sectional structure of the present application;

FIG4 is a schematic diagram of the overall side cross-sectional structure of the present application;

FIG5 is a schematic diagram of the cleaning shaft structure of the present application.

In the figure: 1. base bracket; 2. universal wheel; 3. spring; 4. support frame; 5. vibration motor; 6. screening cylinder; 7. rotating shaft; 8. handle; 9. upper cross frame; 10. cleaning shaft; 11. servo motor; 12. metal screen; 13. lower cross frame; 14. counterweight rod; 15. scraper.

DETAILED DESCRIPTION

The following will be combined with the drawings in 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 in 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.

Please refer to Figures 1, 2 and 3. The utility model provides a technical solution: a concrete screening device, including a base bracket 1, the base bracket 1 is a frame structure, and a universal wheel 2 with a self-locking mechanism is installed at the four angles of its bottom end, and springs 3 are installed at the four corners of the top of the base bracket 1, and a support frame 4 is installed at the top of the spring 3, which can reduce the shaking amplitude of the device when screening sand, and vibration motors 5 are installed at the bottom ends of both sides of the support frame 4, and a screening cylinder 6 is installed at the top of the support frame 4, and a metal screen 12 is installed inside the screening cylinder 6. The screening cylinder 6 can be driven to vibrate by the vibration motor 5, so that sand and stone can be screened. An upper horizontal frame 9 is installed inside the selection drum 6, and a cleaning shaft 10 is installed on the upper horizontal frame 9, and the cleaning shaft 10 is located directly above the metal screen 12. A servo motor 11 is installed at the top of the upper horizontal frame 9, and the servo motor 11 is connected to the cleaning shaft 10, and the bottom end of the cleaning shaft 10 is connected to the top surface of the metal screen 12. The screening drum 6 can be driven to vibrate by the vibration motor 5, so that the sand and gravel can be screened. During the screening process, the cleaning shaft 10 on the upper horizontal frame 9 is driven to rotate by the servo motor 11, so that the sand and gravel stuck on the metal screen 12 can be scraped off, thereby ensuring the permeability of the metal screen 12 and the screening efficiency.

Please refer to Figures 3 and 4. The screening drum 6 is a cylindrical structure with rotating shafts 7 installed on both sides thereof. It is connected to the support frame 4 through the rotating shafts 7 to form a rotating structure. Arc-shaped handles 8 are installed at both ends of the screening drum 6, which can facilitate the operator to drive the screening drum 6 to rotate on the support frame 4 by holding the handles 8.

Please refer to Figures 4 and 5. A lower cross frame 13 is installed horizontally at the bottom end of the screening drum 6, and a counterweight rod 14 is installed vertically at the center position of the bottom end of the lower cross frame 13. A round metal ball is arranged at the bottom end of the counterweight rod 14, which can lower the center of gravity of the entire screening drum 6. The upper cross frame 9 installed inside the top end of the screening drum 6 and the cleaning shaft 10 form a rotating structure. Scrapers 15 are installed on both sides of the cleaning shaft 10, and the scrapers 15 have a certain inclination arc. The bottom surface of the scraper 15 is close to the top surface of the metal screen 12.

Working principle: First, the operator moves the entire screening device through the universal wheel 2 to make it reach the designated position, and fixes its position through the locking device, then turns on the vibration motor 5 at the bottom ends of both sides of the support frame 4, and adds the sand and gravel to be screened from the top of the screening drum 6 into the inside thereof, so that the sand and gravel can be screened. During the vibration screening process, the energy storage of the spring 3 can reduce the shaking amplitude of the device when screening sand, and the counterweight rod 14 installed at the bottom end of the lower cross frame 13 can lower the center of gravity of the screening drum 6 to prevent the screening drum 6 from tipping over when vibrating and screening sand and gravel. When screening sand and gravel, some large sand and gravel particles will stick together due to high humidity, causing larger sand and gravel particles to stick to the filter net, and then starts the servo motor 11, and the cleaning shaft 10 on the upper cross frame 9 is driven by the servo motor 11 to rotate, so that the sand and gravel stuck on the metal screen 12 can be scraped off, thereby ensuring the permeability of the metal screen 12 and ensuring the screening efficiency;

Secondly, scrapers 15 are installed on both sides of the cleaning shaft 10. The scrapers 15 have a certain inclination arc. During the rotation process, the sand and stones adhering to the metal screen 12 can be scraped off and scattered to prevent them from sticking to the screen.

Finally, after the screening of the sand and gravel is completed, the operator can hold the handle 8 to drive the screening drum 6 to rotate on the support frame 4, so that the larger sand and gravel remaining on the top surface of the metal screen 12 can be poured out.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. The utility model provides a concrete sieving mechanism, includes base support (1), its characterized in that: the utility model discloses a cleaning device for a metal screen, including base support (1), support frame (4), vibrating motor (5), screening section of thick bamboo (6), metal screen (12) are installed on the both sides bottom of support frame (4), and internally mounted at screening section of thick bamboo (6), cross frame (9) are gone up in internally mounted of screening section of thick bamboo (6), and install clearance axle (10) on last cross frame (9), and clearance axle (10) are located directly over metal screen (12), servo motor (11) are installed on the top of going up cross frame (9), and servo motor (11) are connected with clearance axle (10), and the bottom of clearance axle (10) is connected with the top surface of metal screen (12).

2. A concrete screening apparatus according to claim 1, wherein: the bottom of base support (1) is installed universal wheel (2), and universal wheel (2) are provided with self-locking mechanism.

3. A concrete screening apparatus according to claim 1, wherein: springs (3) are respectively arranged at four corners of the bottom end of the supporting frame (4), and the four corners are connected with the top end of the base bracket (1) through the springs (3).

4. A concrete screening apparatus according to claim 1, wherein: the screening cylinder (6) is of a cylindrical structure, rotating shafts (7) are arranged on two sides of the screening cylinder, and a rotating structure is formed by the rotating shafts (7) and the supporting frame (4).

5. A concrete screening apparatus according to claim 3, wherein: arc-shaped grips (8) are arranged at two ends of the screening cylinder (6).

6. A concrete screening apparatus according to claim 1, wherein: the bottom of the screening barrel (6) is provided with a lower transverse frame (13), the bottom of the lower transverse frame (13) is vertically provided with a counterweight rod (14), and the bottom of the counterweight rod (14) is provided with a round metal ball.

7. A concrete screening apparatus according to claim 1, wherein: the upper transverse frame (9) and the cleaning shaft (10) form a rotary structure.

8. A concrete screening apparatus according to claim 6, wherein: the scraping plates (15) are arranged on two sides of the cleaning shaft (10), the scraping plates (15) have a certain inclined radian, and the bottom surfaces of the scraping plates (15) are tightly attached to the top surfaces of the metal screens (12).