Raw material screening device for concrete production and processing

Abstract

The utility model relates to the technical field of concrete production and processing, in particular to a raw material screening device for concrete production and processing, which comprises a movable base and a screening component, a support column is fixedly connected to the outer wall of the left top of the movable base, and the screening component for screening is arranged on the right side of a blanking hopper. The outer wall of the screen supporting frame is connected with a first sub-screen, and the outer wall of the first sub-screen is connected with a second sub-screen; the sand screening device has the beneficial effects that the right end of a driving motor rotates to drive a screen supporting frame to rotate, meanwhile, a first screening net and a second screening net rotate, sand is screened along with the first screening net, the first screening net conducts first-layer screening on the sand, and the sand in a first screening bin enters a second screening bin through the first-layer screening; and the sand is subjected to second-layer screening through the second screening net, and screened fine sand falls to the top of the movable base through the second screening net, so that two-layer screening of the sand is achieved, and the screening efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production and processing, in particular to a raw material screening device used for concrete production and processing. Background Art

[0002] Concrete is a general term for engineering composite materials that are made of aggregates bonded into a whole by cementitious materials. The term concrete usually refers to cement as the cementitious material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion and mixed together to obtain cement concrete, also known as ordinary concrete, which is widely used in civil engineering.

[0003] In the prior art, raw materials such as sand and stone need to be screened by a screening device to determine their particle size and particle diameter specifications.

[0004] However, in the process of screening sand and gravel, only one particle size specification of sand and gravel can be screened out, the functionality is relatively single, and the screen is not easy to disassemble, replace and maintain, which often leads to a short service life of the screen and increases the cost of screening. Utility Model Content

[0005] The purpose of the utility model is to provide a raw material screening device for concrete production and processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mobile base and a screening component, the left top outer wall of the mobile base is fixedly connected to a support column, and the top outer wall of the support column is rotatably connected to a lower hopper, the screening component for screening is arranged on the right side of the lower hopper, and the screening component includes a screen support frame, a first sub-screen, a first sub-screen bin, a second sub-screen bin, the outer wall of the screen support frame is connected to the first sub-screen, and a first sub-screen bin is opened between the screen support frame and the first sub-screen, the outer wall of the first sub-screen is connected to the second sub-screen, and a second sub-screen bin is opened between the first sub-screen and the second sub-screen.

[0007] Preferably, the left outer wall of the screen support frame is snap-connected with the first sub-screen and the second sub-screen, and the vertical center axis of the screen support frame is consistent with the first sub-screen and the second sub-screen.

[0008] Preferably, the right outer wall of the screen support frame is rotatably connected to a mounting plate, and a return spring is provided on the outer wall of the mounting plate.

[0009] Preferably, the top end of the return spring is connected with a mounting key, and the outer wall of the mounting key is provided with a first sub-screen and a second sub-screen bin.

[0010] Preferably, a driving motor is provided on the left outer wall of the screen support frame, and the height of the top outer wall of the driving motor is lower than the height of the bottom outer wall of the lower hopper.

[0011] Preferably, the outer wall of the driving motor is provided with a height adjustment assembly for height adjustment, and the height adjustment assembly includes a first support seat and an electric push rod, and the outer wall of the first support seat is rotatably connected to the electric push rod.

[0012] Preferably, the height adjustment assembly further comprises a slide rail and a slide seat, the interior of the movable base is provided with the slide rail, and the interior of the slide rail is slidably connected to the slide seat.

[0013] Preferably, the right end portion of the screen support frame is connected to a second support seat, and the outer wall of the second support seat is connected to a sliding seat.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The right end of the driving motor rotates to drive the screen support frame to rotate, and at the same time, the first sub-screen and the second sub-screen rotate, and the sand material is screened accordingly. The first sub-screen performs the first-layer screening on the sand material, and the sand material inside the first sub-screen bin passes through the first layer of screening and enters the second sub-screen bin. The second sub-screen performs the second layer of screening on the sand material, and the screened fine sand falls to the top of the movable base through the second sub-screen, thereby realizing two-layer screening of the sand material and improving the screening efficiency of the device;

[0016] The first sub-screen is installed on the outer wall of the screen support frame from the right side of the screen support frame by left sleeve connection, and the second sub-screen is installed on the outer side of the first sub-screen by left sleeve connection from the right side of the first sub-screen. The installation key is released, and the reset spring rebounds. The end of the installation key passes through the inside of the second sub-screen and the first sub-screen in turn, connecting the screen support frame, the first sub-screen and the second sub-screen, completing the installation of the first sub-screen and the second sub-screen, and also facilitating subsequent disassembly, replacement and maintenance.

[0017] The utility model provides a raw material screening device for concrete production and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the installation key of the utility model.

[0021] In the figure: 1. Mobile base; 2. Support column; 3. Lower hopper; 4. Screening assembly; 401. Screen support frame; 402. First sub-screen; 403. First sub-screen compartment; 404. Second sub-screen; 405. Second sub-screen compartment; 5. Mounting plate; 6. Reset spring; 7. Mounting key; 8. Drive motor; 9. Height adjustment assembly; 901. First support seat; 902. Electric push rod; 903. Slide rail; 904. Sliding seat; 10. Second support seat. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit 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.

[0023] Embodiment 1

[0024] The mobile base 1 and the screening component 4, the left top outer wall of the mobile base 1 is fixedly connected with the support column 2, and the top outer wall of the support column 2 is rotatably connected with the lower hopper 3, the screening component 4 for screening is arranged on the right side of the lower hopper 3, and the screening component 4 includes a screen support frame 401, a first sub-screen 402, a first sub-screen bin 403, a second sub-screen 404 and a second sub-screen bin 405, the outer wall of the screen support frame 401 is connected with the first sub-screen 402, and the screen support frame 401 is connected with the first sub-screen 402. A first sub-screen compartment 403 is provided between the support frame 401 and the first sub-screen 402, a second sub-screen 404 is connected to the outer wall of the first sub-screen 402, and a second sub-screen compartment 405 is provided between the first sub-screen 402 and the second sub-screen 404, the first sub-screen 402 and the second sub-screen 404 are engaged and connected to the left outer wall of the screen support frame 401, and the vertical center axis of the screen support frame 401 is consistent with the first sub-screen 402 and the second sub-screen 404;

[0025] See also Figures 1 to 3The utility model provides a technical solution: the mobile base 1 can be moved to facilitate changing the position of the device, and the support column 2 supports the lower hopper 3. Sand is added to the lower hopper 3 and enters the first sub-screening bin 403. The driving motor 8 is started, and the right end of the driving motor 8 rotates to drive the screen support frame 401 to rotate. At the same time, the first sub-screen 402 and the second sub-screen 404 rotate, and the sand is screened accordingly. The first sub-screen 402 performs a first layer of screening on the sand, and the sand inside the first sub-screening bin 403 passes through the first layer of screening and enters the second sub-screening bin 405. The second sub-screen 404 performs a second layer of screening on the sand, and the screened fine sand falls to the top of the mobile base 1 through the second sub-screen 404, thereby realizing two-layer screening of the sand and improving the screening efficiency of the device.

[0026] Embodiment 2

[0027] The right outer wall of the screen support frame 401 is rotatably connected with a mounting plate 5, and the outer wall of the mounting plate 5 is provided with a return spring 6, the top end of the return spring 6 is connected with a mounting key 7, and the outer wall of the mounting key 7 is provided with a first sub-screen 402 and a second sub-screen bin 405, the left outer wall of the screen support frame 401 is provided with a driving motor 8, and the top outer wall height of the driving motor 8 is lower than the bottom outer wall height of the lower hopper 3, the outer wall of the driving motor 8 is provided with a height adjustment assembly 9 for height adjustment, and the height adjustment assembly 9 includes a first support seat 901 and an electric push rod 902, the outer wall of the first support seat 901 is rotatably connected with the electric push rod 902, the height adjustment assembly 9 also includes a slide rail 903 and a sliding seat 904, the interior of the mobile base 1 is provided with a slide rail 903, and the interior of the slide rail 903 is slidably connected with the sliding seat 904, the right end of the screen support frame 401 is connected with a second support seat 10, and the outer wall of the second support seat 10 is connected with the sliding seat 904;

[0028] On the basis of the first embodiment, in order to realize rotating the mounting plate 5 to a suitable position, the mounting key 7 is pulled, the reset spring 6 is stretched, the first sub-screen 402 is installed on the outer wall of the screen support frame 401 from the right side direction of the screen support frame 401 by being sleeved to the left, the second sub-screen 404 is installed on the outer side of the first sub-screen 402 by being sleeved to the left from the right side direction of the first sub-screen 402, the mounting key 7 is released, the reset spring 6 rebounds, and the end of the mounting key 7 passes through the second sub-screen 404 and the first sub-screen 402 in turn, the positions of the first sub-screen 402 and the second sub-screen 404 are fixed, and the screen support frame 401, the first sub-screen 402 and the second sub-screen 404 are connected to complete the installation of the first sub-screen 402 and the second sub-screen 404, which is also convenient for subsequent disassembly, replacement and maintenance;

[0029] The unloading hopper 3 is rotated to end unloading, and the electric push rod 902 is started. The top of the electric push rod 902 pushes the first support seat 901 to move upward, and the first support seat 901 drives the driving motor 8 to move upward. The first support seat 901 can rotate around the top end of the electric push rod 902, and the left end of the screen support frame 401 rises accordingly. The right end of the screen support frame 401 is connected to the second support seat 10, and the second support seat 10 slides to the left inside the slide rail 903 with the sliding seat 904, so as to realize the rightward tilt of the screen support frame 401, the first sub-screen 402 and the second sub-screen bin 405, and the height of the top end of the electric push rod 902 is adjusted to realize the unloading of the coarse sand inside the first sub-screen bin 403 and the second sub-screen bin 405.

[0030] In actual use, the mobile base 1 can be moved to facilitate changing the position of the device. Sand is added to the interior of the lower hopper 3 and enters the interior of the first sub-screening bin 403. The right end of the driving motor 8 rotates to drive the screen support frame 401 to rotate. At the same time, the first sub-screen 402 and the second sub-screen 404 rotate, and the sand is screened accordingly. The first sub-screen 402 performs a first-layer screening on the sand, and the sand inside the first sub-screening bin 403 passes through the first layer of screening and enters the second sub-screening bin 405. The second sub-screen 404 performs a second layer of screening on the sand, and the screened fine sand falls to the top of the mobile base 1 through the second sub-screen 404, thereby realizing two-layer screening of the sand.

[0031] Rotate the installation piece 5 to a suitable position, pull the installation key 7, and stretch the reset spring 6. The first sub-screen 402 is installed on the outer wall of the screen support frame 401 from the right side of the screen support frame 401 by being sleeved on the left side, and the second sub-screen 404 is installed on the outer side of the first sub-screen 402 by being sleeved on the left side of the right side of the first sub-screen 402. Release the installation key 7, and the reset spring 6 rebounds. The end of the installation key 7 passes through the inside of the second sub-screen 404 and the first sub-screen 402 in turn, connecting the screen support frame 401, the first sub-screen 402, and the second sub-screen 404.

[0032] The unloading hopper 3 is rotated to end the unloading, and the top of the electric push rod 902 pushes the first support seat 901 to move upward. The first support seat 901 can rotate around the top end of the electric push rod 902, and the left end of the screen support frame 401 rises accordingly. The second support seat 10 slides to the left inside the slide rail 903 along with the sliding seat 904, thereby realizing the rightward tilt of the screen support frame 401, the first sub-screen 402 and the second sub-screen bin 405. By adjusting the height of the top end of the electric push rod 902, the unloading of coarse sand inside the first sub-screen bin 403 and the second sub-screen bin 405 is realized.

[0033] Although 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

1. A raw material screening device for concrete production and processing, characterized in that: A mobile base (1) and a screening component (4), wherein the left top outer wall of the mobile base (1) is fixedly connected to a support column (2), and the top outer wall of the support column (2) is rotatably connected to a lower hopper (3), the screening component (4) for screening is arranged on the right side of the lower hopper (3), and the screening component (4) comprises a screen support frame (401), a first sub-screen (402), a first sub-screen compartment (403), a second sub-screen (404) and a second sub-screen compartment (405), the outer wall of the screen support frame (401) is connected to the first sub-screen (402), and a first sub-screen compartment (403) is provided between the screen support frame (401) and the first sub-screen (402), the outer wall of the first sub-screen (402) is connected to the second sub-screen (404), and a second sub-screen compartment (405) is provided between the first sub-screen (402) and the second sub-screen (404).

2. A raw material screening device for concrete production and processing according to claim 1, characterized in that: The left outer wall of the screen support frame (401) is snap-connected with the first sub-screen (402) and the second sub-screen (404), and the vertical center axis of the screen support frame (401) is consistent with the first sub-screen (402) and the second sub-screen (404).

3. A raw material screening device for concrete production and processing according to claim 2, characterized in that: The right outer wall of the screen support frame (401) is rotatably connected to a mounting plate (5), and a return spring (6) is provided on the outer wall of the mounting plate (5).

4. A raw material screening device for concrete production and processing according to claim 3, characterized in that: The top end of the return spring (6) is connected to a mounting key (7), and the outer wall of the mounting key (7) is provided with a first sub-screen (402) and a second sub-screen compartment (405).

5. The raw material screening device for concrete production and processing according to claim 1 is characterized by: A driving motor (8) is provided on the left outer wall of the screen support frame (401), and the height of the top outer wall of the driving motor (8) is lower than the height of the bottom outer wall of the lower hopper (3).

6. A raw material screening device for concrete production and processing according to claim 5, characterized in that: The outer wall of the driving motor (8) is provided with a height adjustment component (9) for height adjustment, and the height adjustment component (9) comprises a first support seat (901) and an electric push rod (902), and the outer wall of the first support seat (901) is rotatably connected to the electric push rod (902).

7. A raw material screening device for concrete production and processing according to claim 6, characterized in that: The height adjustment assembly (9) further comprises a slide rail (903) and a sliding seat (904); the slide rail (903) is provided inside the movable base (1), and the slide rail (903) is slidably connected to the sliding seat (904) inside.

8. The raw material screening device for concrete production and processing according to claim 1 is characterized by: The right end of the screen support frame (401) is connected to a second support seat (10), and the outer wall of the second support seat (10) is connected to a sliding seat (904).

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