Building pebble screening device and method

Abstract

According to the building pebble screening device and method, a storage space is formed between every two adjacent supporting walls, a bearing frame is horizontally arranged above the supporting walls, and the bearing frames are connected with the tops of the supporting walls through guide mechanisms; a linear driving device for driving the bearing frame to move along the supporting walls is arranged at the top of at least one supporting wall, an inclined screening device is arranged at the top of the bearing frame, a plurality of screening openings located above the storage space are formed in the screening device, and a feeding device is arranged at the end, close to the high position of the screening device, of the bearing frame. When the device is used, pebbles can fall on the screening frame body and fall along the screening frame body, then the pebbles are screened through the screening opening in sequence, the screened pebbles are stored in the storage space, due to the fact that the storage space is large, a large amount of stone can be stored, the screening device can move along the storage space, and the screening effect is good. And therefore, the storage space can be fully paved with stones.

Description

Technical Field

[0001] The present invention relates to the technical field of pebble screening, and particularly to a building pebble screening device and method. Background Technique

[0002] Pebbles refer to particles with a particle size greater than 4.75 mm formed by rocks under natural conditions. Pebbles are applied in many scenarios, such as building materials, garden paving, decorative products, etc. Especially in the field of road paving, it is necessary to select stones with uniform sizes before paving, and at this time, a screening device is required to screen them.

[0003] Existing screening devices are mostly fixed. Because large-scale screening devices are large in volume and heavy in weight, it is difficult to move them during the screening operation. When the stones come out from the discharge port, the stones can only be piled up at the outlet. Since the height of the outlet of the screening device is limited, when the stones are piled up to a certain extent, either a forklift is used to transport the piled-up stones away, or the machine is stopped and waiting until the piled-up stones are transported away before continuing the screening, resulting in a limited screening capacity of the screening device. For this reason, we propose a building pebble screening device and method. Summary of the Invention

[0004] The present invention provides a building pebble screening device and method, which has the advantage of enabling the screening device to move along the supporting wall, resulting in a large amount of pebble screening, and solves the problems raised in the above background technique.

[0005] The technical solution of the present invention is realized as follows: Design a building pebble screening device, including a number of mutually parallel supporting walls. A storage space is formed between two adjacent supporting walls. A bearing frame is horizontally arranged above the supporting walls. The bearing frame is connected to the top of the supporting walls through a guiding mechanism. And a linear driving device for driving the bearing frame to move along the supporting wall is provided at the top of at least one supporting wall. An inclined screening device is arranged on the top of the bearing frame. A plurality of screening openings located above the storage space are provided on the screening device. Sieve meshes are provided in the screening openings, and the mesh numbers of the sieve meshes increase sequentially from top to bottom. A feeding device is provided at one end of the bearing frame close to the higher part of the screening device.

[0006] Preferably, the guiding mechanism includes tracks arranged on the top of the supporting walls. U-shaped frames corresponding to the tracks are respectively provided below both sides of the bearing frame. The U-shaped frames are arranged within the tracks. The top parts of the U-shaped frames are respectively connected to the bearing frame through seat bodies. Traveling wheels in contact with the tracks are installed on both sides and the top of the inner cavity of the U-shaped frames.

[0007] Preferably, the linear driving device includes a transmission rack arranged on the top side of the supporting wall. A transmission gear is meshed on the side of the transmission rack. The transmission gear is installed on the rotating shaft of a traveling driving device. The traveling driving device is installed on a strip-shaped frame body. The two ends of the strip-shaped frame body are respectively connected to the U-shaped frames.

[0008] Preferably, the screening device includes a screening box body inclined above the bearing frame. Screening openings are arranged at intervals inside the screening box body. A plurality of support frames are respectively installed on both sides of the bottom of the screening box body. Rolling wheels are respectively provided at the bottoms of the support frames, and the rolling wheels are placed on the top of the bearing frame. One end of the screening box body is connected to a crank-rocker mechanism. Driven by the crank-rocker mechanism, the screening box body makes a rapid reciprocating motion along the bearing frame.

[0009] Preferably, the crank-rocker mechanism includes a connecting arm located below one end of the screening box body. Both ends of the connecting arm are respectively connected to the support frames. A connecting rod is rotatably provided in the middle of the connecting arm. The other end of the connecting rod is rotatably installed on a crankshaft. Both ends of the crankshaft are respectively rotatably arranged in mounting seats. The bottom of the mounting seat is connected to the bearing frame. One end of the crankshaft is connected to a driving device arranged on the bearing frame.

[0010] Preferably, the feeding device includes a conveyor belt elevator arranged at one end of the bearing frame. The conveyor belt elevator is inclined downward and its bottom is horizontal. The top of the conveyor belt elevator is located above the screening box body. A feeding box is arranged above the bottom of the conveyor belt elevator. Both sides of the feeding box are respectively connected to both sides of the conveyor belt elevator through mounting frames. Support wheels are respectively provided at the four corners of the bottom surface of the conveyor belt elevator through connecting seats. A driving motor is provided on one side of at least one connecting seat, and the driving motor is connected to the support wheel.

[0011] Preferably, brackets are respectively provided on both sides of one end of the bearing frame close to the conveyor belt elevator. Both sides of the conveyor belt elevator are respectively rotatably connected to the brackets.

[0012] Preferably, baffles are respectively provided on both sides of the top of the screening box body, and a material equalizing hopper is installed at the bottom of each screening opening.

[0013] Preferably, each rolling wheel is placed inside a running groove body. The running groove body is arranged on the bearing frame. Guide devices are also provided on both sides of the bearing frame. The guide device includes a horizontally arranged guide shaft. The guide shaft is movably placed inside a guide seat. One end of the guide shaft is connected to the support frame.

[0014] The present invention also proposes a usage method of a building pebble screening device, including the following steps:

[0015] Step 1: Pour the pebbles into the feeding box through a transportation device. The pebbles will be lifted to a high place by the conveyor belt elevator and then fall on the top of the screening box body;

[0016] Step 2: Since the screening box body is driven by the crank-rocker mechanism to make a rapid reciprocating motion, the pebbles falling on the top of the screening box body will pass through each screening opening, so that the pebbles falling from the screening opening are directly stored in the corresponding storage space;

[0017] Step 3: The bearing frame can move along the top of the supporting wall driven by the linear driving device, so the building pebble screening device can screen and drop materials along the storage space.

[0018] Compared with the prior art, when the present invention is in use, the pebbles to be screened are poured into the feeding box, and then the pebbles fall onto the conveyor belt elevator and are lifted. The pebbles will fall on the screening frame and fall along the screening frame. Then the pebbles pass through the screening openings in sequence and are screened. The screened pebbles are stored in the storage space. Since the storage space is large, a large amount of stones can be stored. Moreover, the screening device can move along the storage space, so that the storage space can be filled with stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of one side of the present invention.

[0021] Figure 2 It is a schematic structural diagram of the other side of the present invention.

[0022] Figure 3 It is a schematic structural diagram of a part of the present invention Figure 1 .

[0023] Figure 4 It is a schematic structural diagram of a part of the present invention Figure 2 .

[0024] Figure 5 It is a schematic structural diagram of the bearing frame in the present invention Figure 1 .

[0025] Figure 6 It is a schematic structural diagram of the bearing frame in the present invention Figure 2 .

[0026] In the figure: 1, supporting wall; 2, storage space; 3, track; 4, supporting wheel; 5, connecting seat; 6, mounting frame; 7, feeding box; 8, conveyor belt elevator; 9, bracket; 10, driving device; 11, bearing frame; 12, baffle; 13, screening opening; 14, U-shaped frame; 15, walking wheel; 16, seat body; 17, equalizing hopper; 18, driving rack; 19, walking trough body; 20, support frame body; 21, screening frame body; 22, guide shaft; 23, guide seat; 24, driving gear; 25, crankshaft; 26, mounting seat; 27, connecting rod; 28, connecting arm; 29, walking driving device; 30, strip-shaped frame body; 31, driving motor. Specific implementation mode

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0028] Refer to Figures 1 to 6 , the present invention provides a technical solution: a building pebble screening device, including a plurality of mutually parallel supporting walls 1, a storage space 2 is formed between two adjacent supporting walls 1, the supporting wall 1 is a reinforced concrete wall, the storage space 2 is a long strip structure, and its width and height can both allow a forklift to pass through freely.

[0029] A bearing frame 11 is horizontally arranged above the supporting wall 1, the bearing frame 11 is connected to the top of the supporting wall 1 through a guiding mechanism, the guiding mechanism includes a track 3 arranged on the top of the supporting wall 1, and U-shaped frames 14 corresponding to the track 3 are respectively arranged below both sides of the bearing frame 11. During installation, the track 3 is placed in the U-shaped frame 14, and walking wheels 15 in contact with the track 3 are installed on both sides and the top of the inner cavity of the U-shaped frame 14. The top of the U-shaped frame 14 is respectively connected to the bearing frame 11 through seat bodies 16;

[0030] Since walking wheels 15 are arranged on the top and both sides of the inner cavity of the U-shaped frame 14, the walking wheels 15 can be firmly stuck on the track 3, as shown in Figure 3 and Figure 4 . Because the number of U-shaped frames 14 is large, the bearing frame 11 can be stably supported, and the bearing frame 11 can walk stably on the top surface of the supporting wall 1.

[0031] Further, the carrying frame 11 moves on the top surface of the supporting wall 1 by means of a linear driving device, that is, a linear driving device for driving the carrying frame 11 to move along the supporting wall 1 is provided at the top of at least one supporting wall 1. In the actual application process, two linear driving devices are sufficient, and the two linear driving devices are arranged at both ends of the carrying frame 11. As Figure 3 and Figure 4 shown, the linear driving device includes a transmission rack 18 provided at the top of the side surface of the supporting wall 1, and a transmission gear 24 is engaged with the side surface of the transmission rack 18;

[0032] The transmission gear 24 is driven by the traveling driving device 29. Therefore, during installation, the transmission gear 24 is installed on the rotating shaft of the traveling driving device 29, the traveling driving device 29 is installed on the strip-shaped frame body 30, and both ends of the strip-shaped frame body 30 are respectively connected to the U-shaped frame 14. Here, the traveling driving device 29 is a motor or a combination of a motor and a speed reducer. Therefore, when the traveling driving device 29 rotates, it can drive the transmission gear 24 to rotate, so that the transmission gear 24 travels along the transmission rack 18, and thus the carrying frame 11 can be driven to reciprocate along the top of the supporting wall 1.

[0033] Further, an inclined screening device is provided at the top of the carrying frame 11. As Figure 1 and Figure 2 shown, the screening device includes a screening frame body 21 inclined above the carrying frame 11. The screening device is provided with a plurality of screening openings 13 respectively located above the storage space 2, and a sieve mesh is provided in each screening opening 13, and the mesh number of the sieve mesh increases sequentially from top to bottom. As Figure 3 shown, specifically, the screening openings 13 are arranged at intervals in the screening frame body 21. Baffles 12 are respectively provided on both sides of the top of the screening frame body 21, and a material equalizing hopper 17 is installed at the bottom of each screening opening 13;

[0034] It should be noted that the pebbles to be screened fall from the top of the screening frame body 21. The pebbles pass through each screening opening 13 in turn, and then the pebbles that meet the diameter requirements fall from each screening opening 13 respectively, and the fallen pebbles fall into the corresponding storage space 2 from each material equalizing hopper 17;

[0035] Immediately afterwards, a plurality of support frame bodies 20 are respectively installed on both sides of the bottom of the screening frame body 21. Rolling wheels (not labeled in the figure) are respectively provided at the bottoms of the support frame bodies 20, and the rolling wheels are placed on the top of the carrying frame 11. One end of the screening frame body 21 is connected to a crank-rocker mechanism. Driven by the crank-rocker mechanism, the screening frame body 21 reciprocates rapidly along the carrying frame 11;

[0036] As Figure 3 and Figure 5As shown, the crank-rocker mechanism includes a connecting arm 28 located below one end of the screening box body 21. Both ends of the connecting arm 28 are respectively connected to the support frame body 20. A connecting rod 27 is rotatably provided in the middle of the connecting arm 28, and the other end of the connecting rod 27 is rotatably installed on the crankshaft 25. Both ends of the crankshaft 25 are respectively rotatably arranged in the mounting seat 26. The bottom of the mounting seat 26 is connected to the bearing frame 11. One end of the crankshaft 25 is connected to the driving device 10, and the driving device 10 is arranged on the bearing frame 11. Here, the driving device 10 is a motor, a combination of a motor and a gearbox, or the motor is connected to the crankshaft 25 through a pulley and a belt. Therefore, when the driving device 10 drives the crankshaft 25 to rotate, the crankshaft 25 can drive the screening box body 21 to reciprocate above the bearing frame 11 through the connecting rod 27, so as to screen the pebbles on the bearing frame 11;

[0037] In order to make the reciprocating movement of the rolling wheel more stable, each rolling wheel is placed in the walking groove body 19, and the walking groove body 19 is arranged on the bearing frame 11. Moreover, guiding devices are provided on both sides of the bearing frame 11. The guiding device includes a horizontally arranged guiding shaft 22, and the guiding shaft 22 is movably placed in the guiding seat 23. One end of the guiding shaft 22 is connected to the support frame body 20. Therefore, when the screening box body 21 reciprocates, both sides of the screening box body 21 can expand and contract in the guiding seat 23 through the guiding shaft 22, so as to make the reciprocating movement of the screening box body 21 more stable.

[0038] Based on the above embodiments, a feeding device is provided at one end of the bearing frame 11 close to the higher part of the screening device. The feeding device includes a conveyor belt elevator 8 arranged at one end of the bearing frame 11. The conveyor belt elevator 8 is inclined downward and its bottom is horizontal. The top of the conveyor belt elevator 8 is located above the screening box body 21;

[0039] As Figure 1 and Figure 2 shown, a feeding box 7 is provided above the bottom of the conveyor belt elevator 8. The length of the feeding box 7 matches the size of the bucket of the forklift. When the forklift feeds, its bucket is lifted above the feeding box 7 and the pebbles are poured into the feeding box 7. Both sides of the feeding box 7 are respectively connected to both sides of the conveyor belt elevator 8 through the mounting frame 6. Therefore, the pebbles will continuously fall from the bottom of the feeding box 7 onto the conveyor belt elevator 8 and be lifted;

[0040] Four corners of the bottom surface of the conveyor belt elevator 8 are respectively provided with supporting wheels 4 through connecting seats 5. As Figure 1 shown, a driving motor 31 is provided on one side of at least one connecting seat 5. The driving motor 31 is connected to the supporting wheel 4. The provided driving motor 31 enables the supporting wheel 4 to move. The moving speed of the supporting wheel 4 is the same as the moving speed of the bearing frame 11, and the bearing frame 11 and the supporting wheel move synchronously;

[0041] On both sides of one end of the bearing frame 11 close to the conveyor belt elevator 8, brackets 9 are respectively provided. The two sides of the conveyor belt elevator 8 are respectively rotatably connected to the brackets 9, so that the conveyor belt elevator 8 can rotate around the brackets 9. In this way, when there are small undulations at the bottom of the support wheel 4, the conveyor belt elevator 8 can rotate around the brackets 9 to reduce the stress at the connection between it and the end of the bearing frame 11.

[0042] Furthermore, the present invention also proposes a method for using a building pebble screening device, which includes the following steps:

[0043] Step 1: Pour the pebbles into the feeding box 7 through a transportation device (specifically a forklift). The pebbles will be lifted to a high place by the conveyor belt elevator 8 and then fall on the top of the screening frame 21.

[0044] Step 2: Since the screening frame 21 is driven by a crank-rocker mechanism to move reciprocally rapidly, the pebbles falling on the top of the screening frame 21 will pass through each screening opening 13, so that the pebbles falling from the screening openings 13 are directly stored in the corresponding storage space 2.

[0045] Step 3: The bearing frame 11 can move along the top of the support wall 1 driven by a linear driving device, so the building pebble screening device can perform screening and discharging along the storage space 2.

[0046] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A building pebble screening device, comprising a number of mutually parallel supporting walls (1), characterized in that, A storage space (2) is formed between two adjacent supporting walls (1); A bearing frame (11) is horizontally arranged above the supporting wall (1). The bearing frame (11) is connected to the top of the supporting wall (1) through a guiding mechanism, and a linear driving device for driving the bearing frame (11) to move along the supporting wall (1) is arranged on the top of at least one supporting wall (1); An inclined screening device is arranged on the top of the bearing frame (11). A plurality of screening openings (13) located above the storage space (2) are arranged on the screening device. Sieve meshes are arranged in the screening openings (13), and the mesh numbers of the sieve meshes increase sequentially from top to bottom; A feeding device is arranged at one end of the bearing frame (11) close to the higher position of the screening device.

2. The building pebble screening device according to claim 1, characterized in that, The guiding mechanism includes a track (3) arranged on the top of the supporting wall (1); U-shaped frames (14) corresponding to the track (3) are respectively arranged below both sides of the bearing frame (11). The track (3) is located inside the U-shaped frames (14), and the tops of the U-shaped frames (14) are respectively connected to the bearing frame (11) through seat bodies (16); Traveling wheels (15) in contact with the track (3) are installed on both sides and the top of the inner cavity of the U-shaped frame (14).

3. The building pebble screening device according to claim 2, wherein, The linear driving device includes a transmission rack (18) arranged on the top of the side surface of the supporting wall (1), and a transmission gear (24) is meshed on the side surface of the transmission rack (18); The transmission gear (24) is installed on the rotating shaft of a traveling driving device (29). The traveling driving device (29) is installed on a strip-shaped frame body (30), and both ends of the strip-shaped frame body (30) are respectively connected to the U-shaped frame (14).

4. The building pebble screening device according to claim 3, wherein, The screening device includes a screening frame body (21) inclinedly arranged above the bearing frame (11), and the screening openings (13) are arranged at intervals in the screening frame body (21); A plurality of support frame bodies (20) are respectively installed on both sides of the bottom of the screening frame body (21). Rolling wheels are respectively arranged at the bottoms of the support frame bodies (20), and the rolling wheels are placed on the top of the bearing frame (11); One end of the screening frame body (21) is connected to a crank-rocker mechanism. Driven by the crank-rocker mechanism, the screening frame body (21) reciprocates rapidly along the bearing frame (11).

5. The building pebble screening device according to claim 4, characterized in that, The crank-rocker mechanism includes a connecting arm (28) located below one end of the screening frame body (21). Both ends of the connecting arm (28) are respectively connected to the support frame body (20). A connecting rod (27) is rotatably arranged in the middle of the connecting arm (28), and the other end of the connecting rod (27) is rotatably installed on a crankshaft (25); Both ends of the crankshaft (25) are respectively rotatably arranged in a mounting seat (26). The bottom of the mounting seat (26) is connected to the bearing frame (11), and one end of the crankshaft (25) is connected to a driving device (10) arranged on the bearing frame (11).

6. The building pebble screening device according to claim 5, characterized in that, The feeding device includes a conveyor belt hoist (8) arranged at one end of the bearing frame (11). The conveyor belt hoist (8) is inclined downward and its bottom is horizontal. The top of the conveyor belt hoist (8) is located above the screening frame body (21); Above the bottom of the conveyor belt elevator (8), there is a feeding box (7). Both sides of the feeding box (7) are connected to both sides of the conveyor belt elevator (8) through mounting frames (6). At the four corners of the bottom surface of the conveyor belt elevator (8), support wheels (4) are provided through connecting seats (5). On one side of at least one connecting seat (5), there is a driving motor (31), and the driving motor (31) is connected to the support wheel (4).

7. The building pebble screening device according to claim 6, characterized in that, On both sides of one end of the bearing frame (11) close to the conveyor belt elevator (8), there are brackets (9) respectively, and both sides of the conveyor belt elevator (8) are rotatably connected to the brackets (9).

8. The building pebble screening device according to claim 7, characterized in that, On both sides of the top of the screening box body (21), there are baffles (12) respectively, and a material equalizing hopper (17) is installed at the bottom of each screening port (13).

9. The building pebble screening device according to claim 8, characterized in that, Each rolling wheel is placed in the walking groove body (19), and the walking groove body (19) is arranged on the bearing frame (11). On both sides of the bearing frame (11), there is also a guiding device. The guiding device includes a horizontally arranged guiding shaft (22). The guiding shaft (22) is movably placed in the guiding seat (23), and one end of the guiding shaft (22) is connected to the support frame body (20).

10. A method for using the building pebble screening device as described in claim 9, characterized in that, It includes the following steps: Step 1: Pour the pebbles into the feeding box through the transportation device. The pebbles will be lifted to a high place by the conveyor belt elevator and then fall on the top of the screening box body. Step 2: Since the screening box body is driven by the crank-rocker mechanism to move rapidly back and forth, the pebbles falling on the top of the screening box body will pass through each screening port, so that the pebbles falling from the screening port are directly stored in the corresponding storage space. Step 3: The bearing frame can walk along the top of the supporting wall under the drive of the linear drive device, so the building pebble screening device can screen and discharge materials along the storage space.

Images