Screening device for concrete raw materials

Abstract

The utility model discloses a screening device for concrete raw materials, which comprises a support plate, a driving component, a transmission component, a transmission mechanism, a screen frame, a raw material bin and a blanking pipe, gravel raw materials are put into the raw material bin, the raw materials fall into the screen frame at the bottom through the blanking pipe, the driving component drives the transmission component and the transmission mechanism to operate, and the raw materials are conveyed to the support plate. A transmission assembly drives a screen frame to move, under cooperation of a guide block and a guide groove, the screen frame reciprocates, sand falling into the screen frame is screened through reciprocating movement of the screen frame, some small-particle sand falls into a collecting box at the bottom through screen holes, and a transmission mechanism drives a smashing rod to rotate. The crushing rod rotates to stir and scatter raw materials in the raw material bin, the raw materials in the raw material bin are prevented from caking, the speed of the raw materials falling into the screen frame from the discharging pipe is prevented from being affected, meanwhile, the caking raw materials are prevented from blocking the discharging opening, and the utilization rate of the raw materials can be increased by scattering the caking raw materials.

Description

Technical Field

[0001] The utility model relates to a screening device, in particular to a screening device used for concrete raw materials. Background Art

[0002] Concrete is abbreviated as concrete, which is a general term for engineering composite materials in which aggregates are bonded into a whole by cementitious materials. The term concrete usually refers to cement concrete obtained by mixing cement as a cementitious material, sand and stone as aggregates, and water in a certain proportion. It is also called ordinary concrete. It is widely used in civil engineering. In the process of concrete mixing, it is necessary to ensure that the particle size of the ingredients is consistent, and then the sand and stone need to be screened; but the screening device is used through a cylinder and an electric push rod to achieve the screening work, and in actual use, the concrete raw materials cannot be quickly screened by the cylinder alone, resulting in a slow screening speed of the concrete raw materials and easy clogging in the feed box. Therefore, a screening device for concrete raw materials needs to be designed to solve this problem. Utility Model Content

[0003] The purpose of the utility model is to provide a screening device for concrete raw materials to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A screening device for concrete raw materials, comprising a support plate, a guide plate and a vertical plate are respectively installed on the support plate, a guide groove is provided on the guide plate, a guide block is slidably installed in the guide groove, a screen frame is installed at one end of the guide block away from the guide groove, screen holes are arranged in the screen frame, a collecting box is arranged at the bottom of the screen frame, the collecting box is installed on the support plate, a raw material bin is installed on the guide plate, a crushing rod is arranged in the raw material bin, an inclined block is arranged on the side wall of the raw material bin, and a feeding pipe is arranged at the bottom of the raw material bin;

[0006] A driving assembly, the driving assembly is mounted on the vertical plate;

[0007] A transmission assembly, one end of which is connected to the driving assembly, and the other end of which is connected to the screen frame;

[0008] The transmission mechanism has one end connected to the driving assembly and the other end connected to the crushing rod.

[0009] As a further solution of the utility model: the driving assembly includes a driving member, the driving member is installed on the vertical plate, a driving shaft is installed at the output end of the driving member, and the driving shaft is rotatably connected to the vertical plate.

[0010] As a further solution of the utility model: the transmission assembly includes a driven shaft, one end of which is rotatably connected to the support plate, and the other end of which is connected to the rotating plate;

[0011] The connecting plate has one end rotatably connected to the end of the rotating plate away from the driven shaft and the other end rotatably connected to the bottom of the sieve frame.

[0012] The connecting unit has one end connected to the driving shaft and the other end connected to the driven shaft.

[0013] As a further solution of the present utility model: The transmission mechanism includes a rotating shaft, one end of the rotating shaft is rotatably connected to the vertical plate, the other end extends into the raw material bin and is rotatably connected to the side wall of the raw material bin, and the crushing rod is installed on the rotating shaft.

[0014] The connecting mechanism has one end connected to the driving shaft and the other end connected to the rotating shaft.

[0015] As a further solution of the present utility model: A vibration motor is installed on the side wall of the sieve frame.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: During the sand screening process, the sand and stone raw materials are put into the raw material bin, and the raw materials will orderly fall onto the bottom sieve frame through the feeding pipe. During this process, the driving member drives the driving shaft to rotate, the driving shaft rotates to drive the driven shaft to rotate through the connecting unit, the driven shaft rotates to drive the rotating plate to rotate, the rotating plate rotates to drive the sieve frame at one end of the connecting plate to move, and under the cooperation of the guiding block and the guiding groove, the connecting plate drives the sieve to move back and forth. The reciprocating movement of the sieve frame further drives the sand and stone to shake back and forth, so as to screen the sand and stone falling into the sieve frame. Some small particles of sand fall into the bottom collection box through the sieve holes, which is convenient for subsequent collection and use, convenient and efficient. The rotation of the installed driving shaft drives the rotating shaft to rotate through the connecting mechanism, the rotating shaft rotates to drive the crushing rod connected thereto to rotate, and the rotation of the crushing rod can further stir and disperse the raw materials in the raw material bin, avoiding the caking of the raw materials in the raw material bin, affecting the speed of the raw materials falling from the feeding pipe into the sieve frame, and at the same time avoiding the blockage of the feeding port by the caked raw materials, affecting the feeding efficiency. Dispersing the caked raw materials can improve the utilization rate of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a screening device for concrete raw materials.

[0018] Figure 2 It is a schematic structural diagram of another angle of a screening device for concrete raw materials.

[0019] Figure 3 It is a schematic structural diagram of the connecting unit.

[0020] In the figure: 1, support plate; 2, guide plate; 3, raw material bin; 4, guide groove; 5, guide block; 6, vibration motor; 7, sieve frame; 8, sieve hole; 9, vertical plate; 10, driving member; 11, driving shaft; 12, driven shaft; 13, connecting unit; 14, rotating plate; 15, connecting plate; 16, connecting mechanism; 17, rotating shaft; 18, crushing rod; 19, collection box; 20, inclined block. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in 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 efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 to 3 , as an embodiment of the present invention, a screening device for concrete raw materials includes a support plate 1, on which a guide plate 2 and a vertical plate 9 are respectively installed. A guide groove 4 is opened on the guide plate 2, and a guide block 5 is slidably installed in the guide groove 4. One end of the guide block 5 away from the guide groove 4 is installed with a sieve frame 7. Sieve holes 8 are provided in the sieve frame 7. A collection box 19 is provided at the bottom of the sieve frame 7, and the collection box 19 is installed on the support plate 1. A raw material bin 3 is installed on the guide plate 2. A crushing rod 18 is provided in the raw material bin 3. An inclined block 20 is provided on the side wall of the raw material bin 3, and a feeding pipe is provided at the bottom of the raw material bin 3;

[0023] A driving assembly, which is installed on the vertical plate 9;

[0024] A transmission assembly, one end of which is connected to the driving assembly and the other end is connected to the sieve frame 7;

[0025] A transmission mechanism, one end of which is connected to the driving assembly and the other end is connected to the crushing rod 18.

[0026] In this embodiment, during the sand screening process, the sand and gravel raw materials are put into the raw material bin 3, and the raw materials will orderly fall into the sieve frame 7 at the bottom through the feeding pipe. During this process, the installed driving component drives the transmission component and the transmission mechanism to operate. The transmission component drives the sieve frame 7 to move. Under the cooperation of the guide block 5 and the guide groove 4, the sieve frame 7 reciprocates. The reciprocating movement of the sieve frame 7 drives the sand and gravel to shake reciprocally, enabling the screening of the sand and gravel falling into the sieve frame 7. Some small-particle sand falls through the sieve holes 8 into the collection box 19 at the bottom, facilitating subsequent collection and use, which is convenient and efficient. The transmission mechanism drives the crushing rod 18 to rotate, and the rotation of the crushing rod 18 stirs and disperses the raw materials in the raw material bin 3, preventing the raw materials in the raw material bin 3 from caking, which affects the speed of the raw materials falling from the feeding pipe into the sieve frame 7. At the same time, it also prevents the caked raw materials from blocking the feeding port and affecting the feeding efficiency. The inclined block 20 is arranged on the side wall of the raw material bin 3, which can make the raw materials flow more concentrated towards the side of the feeding pipe, accelerating the feeding speed on the one hand and improving the utilization rate of the raw materials on the other hand.

[0027] As an embodiment of the present utility model, the driving component includes a driving member 10, the driving member 10 is installed on the vertical plate 9, and the output end of the driving member 10 is provided with a driving shaft 11, and the driving shaft 11 is rotatably connected to the vertical plate 9.

[0028] In this embodiment, the driving member 10 drives the driving shaft 11 to rotate, the rotation of the driving shaft 11 drives the transmission component and the transmission mechanism to operate, the transmission component drives the sieve frame 7 to move, and under the cooperation of the guide block 5 and the guide groove 4, the sieve frame 7 reciprocates. The reciprocating movement of the sieve frame 7 drives the sand and gravel to shake reciprocally, enabling the screening of the sand and gravel falling into the sieve frame 7. Some small-particle sand falls through the sieve holes 8 into the collection box 19 at the bottom, facilitating subsequent collection and use, which is convenient and efficient. The transmission mechanism drives the crushing rod 18 to rotate, and the rotation of the crushing rod 18 stirs and disperses the raw materials in the raw material bin 3, preventing the raw materials in the raw material bin 3 from caking, which affects the speed of the raw materials falling from the feeding pipe into the sieve frame 7. At the same time, it also prevents the caked raw materials from blocking the feeding port and affecting the feeding efficiency. Dispersing the caked raw materials can improve the utilization rate of the raw materials.

[0029] Furthermore, the driving member 10 can be a stepping motor or a servo motor, etc., and no specific description is made here.

[0030] As an embodiment of the present utility model, the transmission component includes a driven shaft 12, one end of the driven shaft 12 is rotatably connected to the support plate 1, and the other end is connected with a rotating plate 14;

[0031] A connecting plate 15, one end of the connecting plate 15 is rotatably connected to the end of the rotating plate 14 far from the driven shaft 12, and the other end is rotatably connected to the bottom of the sieve frame 7;

[0032] The connecting unit 13, one end of the connecting unit 13 is connected to the driving shaft 11, and the other end is connected to the driven shaft 12.

[0033] In this embodiment, when the driving shaft 11 rotates, it drives the driven shaft 12 to rotate through the connecting unit 13. The rotation of the driven shaft 12 drives the rotating plate 14 to rotate. The rotation of the rotating plate 14 drives the movement of the sieve frame 7 at one end of the connecting plate 15. Under the cooperation of the guiding block 5 and the guiding groove 4, the connecting plate 15 drives the sieve to move back and forth. The reciprocating movement of the sieve frame 7 further drives the sand and gravel to shake back and forth, so as to screen the sand and gravel falling into the sieve frame 7. Some small particles of sand fall into the collection box 19 at the bottom through the sieve holes 8, which is convenient for subsequent collection and use, and is convenient and efficient.

[0034] Further, the connecting unit 13 can be a gear set or the cooperation of a worm and a worm wheel, and no specific description is made here.

[0035] As an embodiment of the present invention, the transmission mechanism includes a rotating shaft 17. One end of the rotating shaft 17 is rotatably connected to the vertical plate 9, and the other end extends into the raw material bin 3 and is rotatably connected to the side wall of the raw material bin 3. The crushing rod 18 is installed on the rotating shaft 17;

[0036] The connecting mechanism 16, one end of the connecting mechanism 16 is connected to the driving shaft 11, and the other end is connected to the rotating shaft 17.

[0037] In this embodiment, when the installed driving shaft 11 rotates, it drives the rotating shaft 17 to rotate through the connecting mechanism 16. The rotation of the rotating shaft 17 drives the crushing rod 18 connected thereto to rotate. The rotation of the crushing rod 18 can stir and disperse the raw materials in the raw material bin 3, avoiding the caking of the raw materials in the raw material bin 3, which affects the speed of the raw materials falling from the feeding pipe into the sieve frame 7. At the same time, it also avoids the blockage of the feeding port by the caked raw materials, which affects the feeding efficiency. Dispersing the caked raw materials can improve the utilization rate of the raw materials.

[0038] Further, the connecting mechanism 16 can be a gear set or a pulley set, etc., and no specific description is made here.

[0039] As an embodiment of the present invention, a vibration motor 6 is installed on the side wall of the sieve frame 7.

[0040] In this embodiment, a vibration motor 6 is installed on the side wall of the sieve frame 7. By setting the vibration motor 6, the sieve can vibrate during the sand screening process, which can avoid some sand and gravel getting stuck in the sieve holes 8 and blocking the sieve holes 8. The vibration of the vibration motor 6 drives the sieve frame 7 to vibrate, accelerating the speed of the sand falling from the sieve holes 8.

[0041] The working principle of the present utility model is as follows: During the sand screening process, the sand and gravel raw materials are put into the raw material bin 3, and the raw materials will orderly fall into the sieve frame 7 at the bottom through the feeding pipe. During this process, the driving member 10 drives the driving shaft 11 to rotate. The rotation of the driving shaft 11 drives the driven shaft 12 to rotate through the connecting unit 13. The rotation of the driven shaft 12 drives the rotating plate 14 to rotate. The rotation of the rotating plate 14 drives the sieve frame 7 at one end of the connecting plate 15 to move. Under the cooperation of the guiding block 5 and the guiding groove 4, the connecting plate 15 drives the ore sieve to reciprocate. The reciprocating movement of the sieve frame 7 drives the sand and gravel to reciprocate and shake, so as to screen the sand and gravel falling into the sieve frame 7. Some small-particle sands fall into the collection box 19 at the bottom through the sieve holes 8, which is convenient for subsequent collection and use, convenient and efficient. The rotation of the installed driving shaft 11 drives the rotating shaft 17 to rotate through the connecting mechanism 16. The rotation of the rotating shaft 17 drives the crushing rod 18 connected thereto to rotate. The rotation of the crushing rod 18 can stir and disperse the raw materials in the raw material bin 3, avoid the agglomeration of the raw materials in the raw material bin 3, affect the speed of the raw materials falling from the feeding pipe into the sieve frame 7, and at the same time avoid the blocking of the feeding port by the agglomerated raw materials and affect the feeding efficiency. Dispersing the agglomerated raw materials can improve the utilization rate of the raw materials.

[0042] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0043] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A screening device for concrete raw materials, comprising a support plate, characterized in that, A guide plate and a vertical plate are respectively installed on the support plate. A guide groove is formed in the guide plate, and a guide block is slidably installed in the guide groove. One end of the guide block away from the guide groove is provided with a sieve frame. Sieve holes are arranged in the sieve frame. A collection box is arranged at the bottom of the sieve frame, and the collection box is installed on the support plate. A raw material bin is installed on the guide plate. A crushing rod is arranged in the raw material bin. An inclined block is arranged on the side wall of the raw material bin. A feeding pipe is arranged at the bottom of the raw material bin; A driving assembly is installed on the vertical plate; A transmission assembly, one end of the transmission assembly is connected to the driving assembly, and the other end is connected to the sieve frame; A transmission mechanism, one end of the transmission mechanism is connected to the driving assembly, and the other end is connected to the crushing rod.

2. The screening device for concrete raw materials according to claim 1, wherein, The driving assembly includes a driving member, the driving member is installed on the vertical plate, and a driving shaft is installed at the output end of the driving member. The driving shaft is rotatably connected to the vertical plate.

3. A screening device for concrete raw materials according to claim 2, characterized in that, The transmission assembly includes a driven shaft, one end of the driven shaft is rotatably connected to the support plate, and the other end is connected to a rotating plate; A connecting plate, one end of the connecting plate is rotatably connected to the end of the rotating plate away from the driven shaft, and the other end is rotatably connected to the bottom of the sieve frame; A connecting unit, one end of the connecting unit is connected to the driving shaft, and the other end is connected to the driven shaft.

4. The screening device for concrete raw materials according to claim 2, wherein, The transmission mechanism includes a rotating shaft, one end of the rotating shaft is rotatably connected to the vertical plate, and the other end extends into the raw material bin and is rotatably connected to the side wall of the raw material bin. The crushing rod is installed on the rotating shaft; A connecting mechanism, one end of the connecting mechanism is connected to the driving shaft, and the other end is connected to the rotating shaft.

5. A screening device for concrete raw materials according to claim 1, characterized in that, A vibration motor is installed on the side wall of the sieve frame.

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