Roller type gravel screening equipment for road construction

Abstract

The utility model relates to road construction drum-type gravel screening equipment which comprises a sand storage box, and a sand conveying structure is arranged at the bottom of the sand storage box. And a screening structure is arranged at the bottom of the sand conveying structure, a classified conveying structure is arranged at the bottom of the screening structure, and the sand conveying structure comprises a rectangular concave box fixedly installed at the bottom of the sand storage box. According to the roller type gravel screening equipment for road construction, the sand storage box and the rectangular concave box are used for storing sand materials, the sand materials can be added from the top of the sand storage box, an auger is driven by a first motor to rotate, the sand materials in the rectangular concave box can be conveyed to a guide hopper and then enter a screening structure through a connecting pipe, and after the screening structure operates, the sand materials are screened; when the sand conveying structure operates, the amount of sand entering the screening structure can be adjusted by controlling the rotating speed of the auger driven by the first motor, so that coarse sand and fine sand are effectively separated, storage, conveying and screening of the sand and separation of the coarse sand and the fine sand are achieved in the whole process, operation is easy and convenient, and control is flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to sandstone screening technical field, concretely is a road construction drum type sandstone screening equipment. BACKGROUND

[0002] In the field of road construction, sandstone screening is a key step to ensure construction quality and efficiency. Traditional drum type sandstone screening equipment usually relies on raw materials directly fed into the screening cylinder for screening operation. Although this method can meet the basic screening needs to some extent, it still has some significant shortcomings in actual application.

[0003] Traditional equipment often lacks effective adjustment mechanism, and the sand material feeding amount is not convenient to control during the screening process, making it difficult to achieve effective separation of coarse sand and fine sand, thereby affecting the construction efficiency. In addition, the traditional drum type sandstone screening equipment also has certain limitations in material conveying. The screened materials usually need additional conveying equipment for transfer, which greatly increases the construction cost. Therefore, a road construction drum type sandstone screening equipment is proposed to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a road construction drum type sandstone screening equipment to overcome the deficiencies in the prior art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A road construction drum type sandstone screening equipment, comprising a sand storage box, the bottom of the sand storage box is provided with a sand feeding structure; the bottom of the sand feeding structure is provided with a screening structure, and the bottom of the screening structure is provided with a classified conveying structure;

[0007] The sand feeding structure comprises a rectangular recess box fixedly installed at the bottom of the sand storage box, a material guide hopper is fixedly installed at the bottom of the rectangular recess box, the sand storage box, the rectangular recess box and the material guide hopper are sequentially communicated from top to bottom, a front connecting block is fixedly installed on the front surface of the sand storage box, a No. 1 motor with an output shaft penetrating into the interior of the sand storage box is fixedly installed on the front surface of the front connecting block, a screw conveyor is connected to the output end of the No. 1 motor, the screw conveyor is located in the interior of the sand storage box and the rectangular recess box, a rear connecting block is also fixedly installed at the bottom of the rectangular recess box, a supporting disc is fixedly installed at the bottom of the front connecting block and the rear connecting block, the screening structure is located between the two supporting discs, and a connecting pipe penetrating through one of the supporting discs and extending into the interior of the screening structure is fixedly installed at the bottom of the material guide hopper.

[0008] The utility model discloses a beneficial effect is: sand storage box and rectangular concave box are used for storing sand material, and can add sand material from the top of sand storage box, through the rotation of auger of primary motor drive, can deliver the sand material in rectangular concave box to guide chute, enters the screening structure from the connecting pipe, and screening structure operates, and screening sand material, when sand delivery structure operates, can pass through the speed of auger rotation of primary motor drive, to adjust the sand material amount of entering screening structure, thereby effectively separating coarse sand and fine sand, the whole process realizes the storage, delivery, screening and separation of coarse and fine sand of sand material, and the operation is simple and the control is flexible.

[0009] On the basis of the above technical scheme, the utility model still can make following improvement.

[0010] Further, the screening structure includes a second motor fixedly installed on the surface of the other support disc, the output end of the second motor is fixedly installed with a rotating shaft penetrating through the back of the support disc connected thereto, the rotating shaft is fixedly installed with a plurality of support frames on the outside thereof, the plurality of support frames are divided into a plurality of groups, and the support frames in each group are arranged in a ring shape on the outside of the rotating shaft, a plurality of sieve cylinders are fixedly installed on the outside of the plurality of support frames, the sieve cylinders are located between the two support discs and are in rotational cooperation with the support disc near one end of the guide chute, one end of the sieve cylinder near the second motor is designed as an open end, the inner diameter of the sieve cylinder decreases from front to back, and the guide chute is in communication with the sieve cylinder through the connecting pipe.

[0011] Further, the bottom of each of the two support discs is fixedly installed with a support cover, and the two support covers are fixedly installed with a fine sand conveying belt at the bottom of the sieve cylinder.

[0012] Further, the bottom of the support cover in front is fixedly installed with a coarse sand conveying belt, the coarse sand conveying belt is located in front of the fine sand conveying belt, and the surface of the support cover in front is provided with a discharge slot above the coarse sand conveying belt.

[0013] Further, the top of the fine sand conveying belt is fixedly installed with a protective cover, and the protective cover is sleeved on the outside of the sieve cylinder.

[0014] Further, the top of the rectangular concave box is fixedly installed with a top cover sleeved on the outside of the auger, and the top cover is located at the back of the sand storage box. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is one perspective structure schematic view of the utility model;

[0016] Figure 2 It is another perspective structure schematic view of the utility model;

[0017] Figure 3 It is structure explosion schematic view of the utility model;

[0018] Figure 4 A schematic cross-sectional view of the connection between the rectangular concave box and the guide hopper structure;

[0019] Figure 5 This is a schematic diagram of the sieve cylinder structure.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Sand storage box; 2. Rectangular concave box; 3. Guide hopper; 4. Front connecting block; 5. Motor No. 1; 6. Screwdriver; 7. Rear connecting block; 8. Support plate; 9. Connecting pipe; 10. Motor No. 2; 11. Rotating shaft; 12. Support frame; 13. Screen cylinder; 14. Support cover; 15. Fine sand conveyor belt; 16. Coarse sand conveyor belt; 17. Protective cover; 18. Top cover. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] Example 1, as Figures 1-4 As shown, a road construction roller-type sand and gravel screening device includes a sand storage box 1, a sand feeding structure at the bottom of the sand storage box 1, a screening structure at the bottom of the sand feeding structure, and a classification conveying structure at the bottom of the screening structure.

[0024] Specifically, the sand feeding structure includes a rectangular concave box 2 fixedly installed at the bottom of the sand storage box 1. A guide hopper 3 is fixedly installed at the bottom of the rectangular concave box 2. The sand storage box 1, the rectangular concave box 2, and the guide hopper 3 are connected sequentially from top to bottom. A front connecting block 4 is fixedly installed on the front of the sand storage box 1. A No. 1 motor 5 with an output shaft passing through the interior of the sand storage box 1 is fixedly installed on the front of the front connecting block 4. The output end of the No. 1 motor 5 is connected to an auger 6. The auger 6 is located inside the sand storage box 1 and the rectangular concave box 2. A rear connecting block 7 is also fixedly installed at the bottom of the rectangular concave box 2. A support plate 8 is fixedly installed at the bottom of both the rear connecting block 7 and the front connecting block 7. The screening structure is located between the two support plates 8. A connecting pipe 9 passing through one of the support plates 8 and extending into the interior of the screening structure is fixedly installed at the bottom of the guide hopper 3.

[0025] In use, the sand storage box 1 and the rectangular recessed box 2 are used to store sand, and sand can also be added to the inside of the sand storage box 1 from the top thereof, at this time, the first motor 5 drives the auger 6 to rotate to convey the sand in the rectangular recessed box 2 to the inside of the guide hopper 3, the sand in the inside of the guide hopper 3 passes through the connecting pipe 9 to enter the inside of the screening structure, and then the screening structure operates to screen the sand in the inside thereof; when the sand conveying structure operates, the amount of sand entering the inside of the screening structure can be easily controlled by controlling the speed of the first motor 5 driving the auger 6 to rotate, so as to effectively separate coarse sand and fine sand.

[0026] Embodiment 2, as shown in Figures 1-5 the further improvement made on the basis of embodiment 1, which is as follows:

[0027] The screening structure comprises a second motor 10 fixedly installed on the surface of the other support disc 8, the output end of the second motor 10 is fixedly installed with a rotating shaft 11 penetrating through the back of the support disc 8 connected thereto, the outside of the rotating shaft 11 is fixedly installed with a plurality of support frames 12, the plurality of support frames 12 are divided into groups, and the support frames 12 in each group are arranged in a ring shape on the outside of the rotating shaft 11, the outside of the plurality of support frames 12 is fixedly installed with a sieve cylinder 13, the sieve cylinder 13 is located between the two support discs 8 and is in rotating cooperation with the support disc 8 close to one end of the guide hopper 3, the end of the sieve cylinder 13 close to the second motor 10 is designed as an open end, the inner diameter of the sieve cylinder 13 decreases from front to back, and the guide hopper 3 is communicated with the sieve cylinder 13 through the connecting pipe 9.

[0028] In this way, the two support discs 8 are connected and fixed below the rectangular recessed box 2 through the front connecting block 4 and the rear connecting block 7, at this time, the two support discs 8 limit the screening structure at the bottom of the sand conveying structure, after the sand in the inside of the guide hopper 3 enters the inside of the sieve cylinder 13 through the connecting pipe 9, the second motor 10 drives the rotating shaft 11 and the plurality of support frames 12 outside it to rotate, and then the rotation of the plurality of support frames 12 drives the sieve cylinder 13 to rotate, and the fine sand in the inside of the sieve cylinder 13 flows outwards through the sieve holes on the cylinder wall of the sieve cylinder 13 when the sieve cylinder 13 rotates, and since the inner diameter of the sieve cylinder 13 decreases from front to back, i.e. the inner wall of the sieve cylinder 13 is in an inclined state, therefore, when the sieve cylinder 13 rotates, the coarse sand in the inside of the sieve cylinder 13 also rolls from the rear end to the front end of the sieve cylinder 13, and finally falls to the outside from the open end in the front of the sieve cylinder 13.

[0029] Embodiment 3, as shown in Figures 1-3 the further improvement made on the basis of embodiment 2, which is as follows:

[0030] The bottom of each of the two support discs 8 is fixedly installed with a support cover 14, and the two support covers 14 are fixedly installed with a fine sand conveying belt 15 located at the bottom of the sieve cylinder 13.

[0031] With this configuration, the fine sand conveyor belt 15 is confined to the bottom of the screen cylinder 13 by the two installed support covers 14. The fine sand screened out by the rotating screen cylinder 13 falls to the bottom of the fine sand conveyor belt 15 and can then be transported to the required location.

[0032] Example 4, as Figures 1-3 As shown, this embodiment is a further improvement based on embodiment 3, and its specific details are as follows:

[0033] A coarse sand conveyor belt 16 is fixedly installed at the bottom of a support cover 14 located at the front, and the coarse sand conveyor belt 16 is located in front of the fine sand conveyor belt 15. A discharge chute located above the coarse sand conveyor belt 16 is opened on the surface of the support cover 14 located at the front.

[0034] With this configuration, the support cover 14 installed at the front can guide the coarse sand discharged from the screen cylinder 13 to the top of the coarse sand conveyor belt 16. Then, the coarse sand conveyor belt 16 can transport the coarse sand to the place where it is needed.

[0035] Example 5, as Figures 1-3 As shown, this embodiment is a further improvement based on embodiment 3, and its specific details are as follows:

[0036] A protective cover 17 is fixedly installed on the top of the fine sand conveyor belt 15, and the protective cover 17 is fitted onto the outside of the screen cylinder 13.

[0037] With this configuration, the fine sand screened out by the screen cylinder 13 can be guided to the top of the fine sand conveyor belt 15 by the installed protective cover 17, thereby preventing the screened sand from spilling onto the outside of the fine sand conveyor belt 15.

[0038] Example 6, as Figures 2-3 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0039] A top cover 18, which is fitted onto the outside of the screw conveyor 6, is fixedly installed on the top of the rectangular recessed box 2, and the top cover 18 is located on the back of the sand storage box 1.

[0040] This configuration, with the top cover 18 installed, covers the top of the guide hopper 3 and the rectangular recessed box 2, preventing sand from spilling outwards when it enters the interior of the guide hopper 3.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A road construction drum-type grit screening plant comprising a grit storage box (1), characterized in that: The bottom of the sand storage box (1) is provided with a sand feeding structure; the bottom of the sand feeding structure is provided with a screening structure, and the bottom of the screening structure is provided with a classified conveying structure; The sand feeding structure comprises a rectangular recessed box (2) fixedly installed at the bottom of the sand storage box (1), a material guide hopper (3) fixedly installed at the bottom of the rectangular recessed box (2), and the sand storage box (1), the rectangular recessed box (2) and the material guide hopper (3) are sequentially communicated from top to bottom, a front connecting block (4) fixedly installed at the front surface of the sand storage box (1), a No. 1 motor (5) with an output shaft penetrating into the sand storage box (1) fixedly installed at the front surface of the front connecting block (4), a screw conveyor (6) connected to the output end of the No. 1 motor (5), the screw conveyor (6) located in the sand storage box (1) and the rectangular recessed box (2), a rear connecting block (7) fixedly installed at the bottom of the rectangular recessed box (2), a support disc (8) fixedly installed at the bottom of the front connecting block (4) and the rear connecting block (7), the screening structure located between the two support discs (8), and a connecting pipe (9) fixedly installed at the bottom of the material guide hopper (3), penetrating through one of the support discs (8) and extending into the screening structure.

2. A road construction drum screen apparatus as claimed in claim 1, characterised in that: The screening structure comprises a No. 2 motor (10) fixedly installed on the surface of the other support disc (8), a rotating shaft (11) fixedly installed at the output end of the No. 2 motor (10) and penetrating through the back of the support disc (8) connected to the No. 2 motor (10), a plurality of support frames (12) fixedly installed on the outer portion of the rotating shaft (11), the plurality of support frames (12) being divided into groups, and the support frames (12) in each group being annularly and evenly distributed on the outer portion of the rotating shaft (11), a plurality of sieve cylinders (13) fixedly installed on the outer portion of the plurality of support frames (12), the sieve cylinders (13) located between the two support discs (8) and rotationally matched with the support disc (8) close to one end of the material guide hopper (3), one end of the sieve cylinder (13) close to the No. 2 motor (10) being designed as an open end, the inner diameter of the sieve cylinder (13) sequentially decreasing from front to back, and the material guide hopper (3) and the sieve cylinder (13) being communicated through the connecting pipe (9).

3. A road construction drum screen apparatus as claimed in claim 2, characterised in that: The bottom of each of the two support discs (8) is fixedly installed with a support cover (14), and the two support covers (14) are fixedly installed with a fine sand conveying belt (15) located at the bottom of the sieve cylinder (13) between them.

4. A road construction drum screen apparatus as claimed in claim 3, characterised in that: The bottom of the support cover (14) located in front is fixedly installed with a coarse sand conveying belt (16), and the coarse sand conveying belt (16) is located in front of the fine sand conveying belt (15); and the surface of the support cover (14) located in front is provided with a discharging groove located above the coarse sand conveying belt (16).

5. A road construction drum screen apparatus as claimed in claim 3, wherein: The top of the fine sand conveying belt (15) is fixedly installed with a protective cover (17) sleeved on the outer portion of the sieve cylinder (13).

6. A road construction drum screen apparatus as claimed in claim 1, characterized in that: The top of the rectangular recessed box (2) is fixedly installed with a top cover (18) sleeved on the outer portion of the screw conveyor (6), and the top cover (18) is located at the back of the sand storage box (1).

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