Multifunctional sand screening machine and method for building construction

Abstract

The invention discloses a multifunctional sand screening machine and method for building construction, relates to the technical field of sand screening machines, and aims to solve the problems that although the inclined design of an existing construction site screening machine aims to achieve sand and stone separation by means of gravity and slope flow guide, the material flowing speed is unbalanced, the screen utilization rate is not uniform, equipment vibration and abrasion are aggravated, and the service life is prolonged in the actual use process. The screening device comprises a flow guide assembly and a transmission assembly connected with the flow guide assembly. According to the device, the screening assembly and the flow guide assembly are designed, so that the device can screen the gravel and discharge the screened gravel out of the machine body without adopting an inclined design, the device can automatically complete subsequent screening and discharging treatment only by injecting the gravel into the feeding assembly, and meanwhile, through a rotating mode, the device is convenient to operate, and the working efficiency is greatly improved. And the gravels naturally fall, so that the caked gravels are subjected to impact treatment, and the screening efficiency and the screening quality of the device are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of sand screening machines, and more specifically, to a multi-functional sand screening machine and method for building construction. Background Art

[0002] With the continuous development of society, the construction industry has developed vigorously. Among them, sand is an important raw material in building construction, and it needs to be screened to a certain extent during use. At this time, a corresponding sand screening machine for building construction can be used. There are various types of such sand screening machines for building construction in the current market, which can basically meet people's usage needs. However, there are still problems of poor screening efficiency and uneven screening in actual use.

[0003] Most of the existing construction site screening machines adopt an inclined design, aiming to utilize the gravity and inclined plane diversion mechanism to effectively separate sand and gravel after they enter the interior of the screening machine. However, in actual application scenarios, although this design concept has theoretical advantages, it exposes many drawbacks in actual operation. Specifically, the inclined design may cause the problem of unbalanced flow velocity of materials on the screen surface. When the inclined angle is set too large, the materials will slide down quickly and cannot stay on the screen surface for enough time to complete sufficient screening, resulting in some fine particles not being effectively separated. On the contrary, if the inclined angle is too small, the materials may accumulate on the screen surface due to slow flow, which not only reduces the screening efficiency but also may cause the screen mesh to be blocked, further affecting the screening quality. More importantly, the inclined design often leads to low utilization rate of local areas of the screen mesh and uneven distribution of materials on the screen surface, causing some areas of the screen mesh to bear excessive material pressure while other areas are relatively idle. This unbalanced material distribution mode seriously weakens the overall screening efficiency of the screening machine. In addition, the inclined design may also exacerbate the vibration phenomenon during the operation of the equipment. Long-term high-intensity vibration not only increases the mechanical wear of the equipment but also increases the probability of failure, thus posing a serious threat to the service life of the screening machine. To sum up, the existing sand screening machines face multiple challenges such as low screening efficiency, unstable screening quality, and shortened equipment service life due to the inclined design. These problems not only affect the progress and quality of engineering construction but also increase the maintenance cost and safety risk. In view of this, we propose a multi-functional sand screening machine and method for building construction. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-functional sand screening machine and method for building construction, so as to solve the technical problems that although the inclined design of the existing construction site screening machine aims to separate sand and gravel by means of gravity and inclined plane diversion, it is easy to cause unbalanced flow velocity of materials, uneven utilization rate of the screen mesh, and exacerbate equipment vibration and wear in actual use, resulting in difficulties in ensuring screening efficiency, quality, and equipment life.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A sand screening machine and method for multi-functional building construction, including a driver, a driving wheel, and a diversion cylinder, further including,

[0006] A sand screening mechanism, including a diversion component, a transmission component connected to the diversion component, a screening component, an isolation component located on one side of the diversion component, and a feeding component. Among them, the screening component is located inside the diversion component, and the feeding component is connected to the isolation component; and a positioning mechanism, including a base, a positioning component arranged above the base, a frame component connected to the base, a guide plate connected to the base, a driver, and a driving wheel. Among them, the driver is connected to one side of the positioning component, and the driving wheel is connected to the driver.

[0007] The present invention can screen sand and gravel without adopting an inclined design and discharge the screened sand and gravel outside the machine body. Moreover, the device only needs to inject sand and gravel into the feeding component to automatically complete subsequent screening and discharging processes. At the same time, through rotation, the sand and gravel naturally fall to impact the agglomerated sand and gravel, thereby ensuring the screening efficiency and quality of the device.

[0008] Preferably, the inner wall of the diversion component meshes with the transmission component, one side of the diversion component is clamped with the isolation component, the transmission component is clamped inside the isolation component, one side of the isolation component is clamped with the screening component, the other side of the screening component is clamped with the feeding component, and the feeding component is connected to the screening component through the isolation component;

[0009] The outer wall of the diversion component is clamped with the positioning component, the diversion component is in transmission connection with the driving wheel, the frame component is clamped on the other side of the diversion component, the guide plate is located below the diversion component, and the feeding component is fixedly connected above the base.

[0010] Preferably, the upper part of the base is fixedly connected to the lower parts of the positioning component and the frame component, the upper part of the base is fixedly connected to the guide plate, the guide plate adopts an inclined design, one side of the positioning component is fixedly connected to the driver, and the output shaft of the driver is fixedly connected to the driving wheel.

[0011] Preferably, the diversion component includes a diversion cylinder, the inner wall of the diversion cylinder is fixedly connected with diversion blades, the diversion blades adopt a spiral design, an annular friction belt is fixedly connected outside the diversion cylinder, and a plurality of tooth blocks are fixedly connected inside the diversion cylinder;

[0012] The outer wall of the diversion cylinder is lapped with the positioning component, the diversion cylinder is in transmission connection with the driving wheel through the friction belt, and the diversion cylinder meshes with the transmission component through the tooth blocks.

[0013] Preferably, the transmission assembly includes a first bearing, a positioning plate is clamped on one side of the first bearing, a first rotating shaft is sleeved in the first bearing, the other end of the first rotating shaft passes through a gear and is fixedly connected to a transmission wheel, and a transmission belt is wound around the transmission wheel;

[0014] The positioning plate is fixedly connected to the positioning assembly, the first rotating shaft is clamped in the isolation assembly, the gear meshes with the tooth blocks in the flow guiding cylinder, and the transmission wheel is in transmission connection with the screening assembly through the transmission belt.

[0015] Preferably, the screening assembly includes a screening cylinder, a first spiral blade is fixedly connected inside the screening cylinder, the inner wall of the screening cylinder is fixedly connected to the outer wall of the first spiral blade, and sealing sleeves are sleeved on both sides of the screening cylinder;

[0016] The screening cylinder is in transmission connection with the feeding assembly through the first spiral blade, one of the sealing sleeves is clamped with the isolation assembly, the other sealing sleeve is clamped on one side of the frame assembly, and the screening cylinder is in transmission connection with the transmission wheel through the transmission belt.

[0017] Preferably, the isolation assembly includes an isolation sleeve, a rotating groove is formed on one side of the isolation sleeve, the rotating groove is annular, a mounting plate is rotatably connected in the rotating groove, the mounting plate is annular, the cross section of the mounting plate is in the shape of a Chinese character 'gong', and a plurality of mounting holes are formed on one side of the mounting plate;

[0018] The first rotating shaft is clamped in one of the mounting holes, the isolation sleeve is fixedly connected to the outside of the flow guiding cylinder, the feeding assembly is clamped on one side of the isolation sleeve, and the sealing sleeve is clamped on the other side of the isolation sleeve.

[0019] Preferably, the feeding assembly includes a feeding cylinder, a feeding cover is fixedly connected above the feeding cylinder, the feeding cylinder is communicated with the feeding cover, two reinforcing ribs are fixedly connected below the feeding cylinder, a second bearing is clamped on one side of the inner wall of the feeding cylinder, a second rotating shaft is sleeved in the second bearing, and a second spiral blade is fixedly connected to the outside of the second rotating shaft;

[0020] The feeding cylinder is clamped on one side of the isolation sleeve, the feeding cylinder is communicated with the screening cylinder through the isolation sleeve, the reinforcing ribs are fixedly connected above the base, and the second rotating shaft passes through the isolation sleeve and is fixedly connected to the first spiral blade.

[0021] Preferably, the positioning assembly includes four fixing blocks, and two positioning frames are fixedly connected above the four fixing blocks. The positioning frames are designed in an arc shape, and limiting wheels are clamped in the positioning frames;

[0022] The fixing blocks are fixedly connected above the base, one side of one of the fixing blocks is fixedly connected to the driver, and the limiting wheel is rotatably connected to the outside of the flow guiding cylinder;

[0023] The frame assembly includes a support, at the top of which is fixedly connected a discharge hood, and a discharge chute is provided below the discharge hood.

[0024] The support is fixedly connected above the base, the discharge hood is snap - connected to the other side of the diversion cylinder, and the sealing sleeve on the other side of the sieve cylinder is snap - connected to one side of the discharge hood.

[0025] A method for using a sand screening machine includes the following steps:

[0026] S1. Start the driver and put the sand and gravel to be processed into the feeding assembly.

[0027] S2. The feeding assembly discharges the sand and gravel into the screening assembly. After being processed by the screening assembly, the qualified sand and gravel are discharged along the frame assembly, while the unqualified sand and gravel are discharged along the screening assembly.

[0028] S3. When heat treatment of the sand and gravel is required, connect an external hot air blower to the isolation assembly.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. By designing a screening assembly, a feeding assembly and a diversion assembly, the sand and gravel to be processed are put into the feeding assembly. Start the driver, the driver drives the driving wheel to rotate, and the friction between the driving wheel and the diversion assembly drives the diversion assembly to rotate. At the same time, the transmission assembly rotates in the opposite direction and drives the screening assembly to rotate. Since the screening assembly is connected to the feeding assembly, the sand and gravel entering the feeding assembly will enter the screening assembly driven by the feeding assembly. At this time, while the screening assembly rotates as a whole, it pushes the sand and gravel to move to the other side, and the sand and gravel are screened by moving and rotating inside the screening assembly. The qualified sand and gravel will fall into the diversion assembly. Since the diversion assembly is in a rotating state, the sand and gravel will be discharged under the transportation of the diversion assembly, while the sand and gravel that do not meet the size standard will be discharged along the screening assembly. This enables the device to screen the sand and gravel and discharge the screened sand and gravel outside the machine body without using an inclined design. Moreover, the device only needs to inject the sand and gravel into the feeding assembly to automatically complete the subsequent screening and discharging processes. At the same time, through the rotation method, the sand and gravel naturally fall, thereby impacting the agglomerated sand and gravel, and then ensuring the screening efficiency and screening quality of the device.

[0031] 2. The present invention also designs a flow guide component and a screening component. After the sand and gravel are injected into the material cover, the driver drives the flow guide cylinder to rotate through the driving wheel. When the flow guide cylinder rotates, the tooth block inside it drives the gear to rotate. Then, the gear drives the screen cylinder to rotate through the first rotating shaft, the transmission wheel and the transmission belt. The rotation of the screen cylinder drives the first spiral blade and the second rotating shaft and the second spiral blade in the upper cylinder to rotate, so that the sand and gravel in the upper cylinder are transported to the screen cylinder. The sand and gravel are screened by the rotation of the screen cylinder. At the same time, the first spiral blade in the screen cylinder The blades will push large pieces of unqualified sand and gravel to move in the screen drum until the unqualified sand and gravel are discharged, and the sand and gravel discharged from the screen drum will be discharged driven by the guide blades in the guide drum. During the operation of the device, the internal screen drum is rotated to screen and discharge the sand and gravel. At the same time, the rotation of the external guide drum causes the sand and gravel to fall and separate, and the sand and gravel that are stuck together are processed again, which ensures the quality and efficiency of the device in processing sand and gravel, reduces the difficulty of using the device, and enables the device to quickly discharge the processed sand and gravel.

[0032] 3. The present invention also designs an isolation component. When processing sand and cement powder with high humidity, it is necessary to connect the external hot air blower to the mounting hole outside the mounting plate, continuously inject hot air into the device, increase the internal temperature of the device, dry the sand and cement powder, and accelerate their movement speed. With the rotation of the guide cylinder and the screen cylinder, the sand and powder are tumbled in the device, which increases the contact efficiency between the air and them, and further improves the processing effect and efficiency of the device on sand and powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the sand screening mechanism of the present invention;

[0035] Figure 3 It is a schematic diagram of the positioning mechanism structure of the present invention;

[0036] Figure 4 It is a schematic diagram of the cross-sectional structure of the flow guide component of the present invention;

[0037] Figure 5 It is a schematic diagram of the cross-sectional structure of the isolation component of the present invention;

[0038] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0039] Figure 7 It is a schematic diagram of the cross-sectional structure of the feeding assembly of the present invention;

[0040] Figure 8Schematic cross-sectional structure diagram of the screening component of the present invention.

[0041] Explanation of reference numerals in the figure:

[0042] 1. Sand screening mechanism; 2. Positioning mechanism;

[0043] 11. Diversion component; 12. Transmission component; 13. Screening component; 14. Isolation component; 15. Feeding component;

[0044] 21. Base; 22. Positioning component; 23. Frame component; 24. Guide plate; 25. Driver; 26. Driving wheel;

[0045] 111. Diversion cylinder; 112. Diversion vane; 113. Friction belt; 114. Tooth block;

[0046] 121. First bearing; 122. Positioning plate; 123. First rotating shaft; 124. Gear; 125. Transmission wheel; 126. Transmission belt;

[0047] 131. Screening cylinder; 132. First spiral blade; 133. Sealing sleeve;

[0048] 141. Isolation sleeve; 142. Rotating groove; 143. Mounting plate; 144. Mounting hole;

[0049] 151. Feeding cylinder; 152. Feeding cover; 153. Reinforcing rib; 154. Second bearing; 155. Second rotating shaft; 156. Second spiral blade;

[0050] 221. Fixed block; 222. Positioning frame; 223. Limiting wheel;

[0051] 231. Support; 232. Discharge cover; 233. Discharge chute. Detailed implementation manners

[0052] As Figures 1 to 8 shown, a multi-functional sand screening machine and method for building construction according to the present invention includes a driver 25, a driving wheel 26 and a diversion cylinder 111, and further includes,

[0053] The sand screening mechanism 1 includes a diversion component 11, a transmission component 12 connected to the diversion component 11, a screening component 13, an isolation component 14 located on one side of the diversion component 11, and a feeding component 15. Among them, the screening component 13 is located inside the diversion component 11, and the feeding component 15 is connected to the isolation component 14. And, the positioning mechanism 2 includes a base 21, a positioning component 22 arranged above the base 21, a frame component 23 connected to the base 21, a guide plate 24 connected to the base 21, a driver 25, and a driving wheel 26. Among them, the driver 25 is connected to one side of the positioning component 22, and the driving wheel 26 is connected to the driver 25. By designing the screening component 13, the feeding component 15, and the diversion component 11, the sand and gravel to be processed are put into the feeding component 15. The driver 25 is started, and the driving wheel 26 is driven to rotate by the driver 25. The diversion component 11 is driven to rotate by the friction force between the driving wheel 26 and the diversion component 11. At the same time, the transmission component 12 rotates in the opposite direction and drives the screening component 13 to rotate. Since the screening component 13 is connected to the feeding component 15, the sand and gravel entering the feeding component 15 will enter the screening component 13 under the drive of the feeding component 15. At this time, while the screening component 13 rotates as a whole, it pushes the sand and gravel to move to the other side. The sand and gravel are screened by the way of moving and rotating inside the screening component 13. The qualified sand and gravel will fall into the diversion component 11. Since the diversion component 11 is in a rotating state, the sand and gravel will be discharged under the transportation of the diversion component 11, while the sand and gravel that do not meet the size standard will be discharged along the screening component 13, so that the device can screen the sand and gravel and discharge the screened sand and gravel outside the machine body without adopting an inclined design. And the device only needs to inject the sand and gravel into the feeding component 15 to automatically complete the subsequent screening and discharging processes. At the same time, by rotating, the sand and gravel naturally fall, so as to impact the agglomerated sand and gravel, thereby ensuring the screening efficiency and screening quality of the device.

[0054] In an embodiment of the present invention, the inner wall of the diversion assembly 11 meshes with the transmission assembly 12. One side of the diversion assembly 11 is snap-connected to the isolation assembly 14. The transmission assembly 12 is snap-connected within the isolation assembly 14. One side of the isolation assembly 14 is snap-connected to the screening assembly 13. The other side of the screening assembly 13 is snap-connected to the feeding assembly 15. The feeding assembly 15 is connected to the screening assembly 13 through the isolation assembly 14. The outer wall of the diversion assembly 11 is snap-connected to the positioning assembly 22. The diversion assembly 11 is drivingly connected to the driving wheel 26. The frame assembly 23 is snap-connected to the other side of the diversion assembly 11. The guide plate 24 is located below the diversion assembly 11. The feeding assembly 15 is fixedly connected above the base 21. Above the base 21 is fixedly connected to the lower part of the positioning assembly 22 and the frame assembly 23. Above the base 21 is fixedly connected to the guide plate 24. The guide plate 24 is designed to be inclined. One side of the positioning assembly 22 is fixedly connected to the driver 25. The output shaft of the driver 25 is fixedly connected to the driving wheel 26. By designing the diversion assembly 11 and the screening assembly 13, after the sand and gravel are injected into the feeding hood 152, the driver 25 drives the diversion cylinder 111 to rotate through the driving wheel 26. When the diversion cylinder 111 rotates, the tooth blocks 114 inside it will drive the gear 124 to rotate. Subsequently, the gear 124 drives the screening cylinder 131 to rotate through the first rotating shaft 123, the transmission wheel 125, and the transmission belt 126. The rotation of the screening cylinder 131 will drive the first spiral blade 132 and the second rotating shaft 155 and the second spiral blade 156 in the feeding cylinder 151 to rotate, thereby conveying the sand and gravel in the feeding cylinder 151 into the screening cylinder 131. The screening cylinder 131 rotates to screen the sand and gravel. At the same time, the first spiral blade 132 in the screening cylinder 131 will push the large unqualified sand and gravel to move in the screening cylinder 131 until the unqualified sand and gravel are discharged. The sand and gravel discharged from the screening cylinder 131 will be discharged under the drive of the diversion blade 112 in the diversion cylinder 111. During the operation of this device, the sand and gravel are screened and discharged through the rotation of the internal screening cylinder 131. At the same time, through the rotation of the external diversion cylinder 111, the sand and gravel are subjected to a falling separation treatment, and the sand and gravel adhered together are processed again, ensuring the quality and efficiency of the device for processing sand and gravel, reducing the difficulty of using the device, and enabling the device to quickly discharge the processed sand and gravel.

[0055] In an embodiment of the present invention, the diversion assembly 11 includes a diversion cylinder 111. The inner wall of the diversion cylinder 111 is fixedly connected with diversion vanes 112. The diversion vanes 112 adopt a spiral design. An abrasive band 113 is fixedly connected to the outside of the diversion cylinder 111. The abrasive band 113 is annular. A number of tooth blocks 114 are fixedly connected inside the diversion cylinder 111. The outer wall of the diversion cylinder 111 is lapped with the positioning assembly 22. The diversion cylinder 111 is in transmission connection with the driving wheel 26 through the abrasive band 113. The diversion cylinder 111 is meshed with the transmission assembly 12 through the tooth blocks 114. The transmission assembly 12 includes a first bearing 121. A positioning plate 122 is clamped on one side of the first bearing 121. A first rotating shaft 123 is sleeved inside the first bearing 121. The other end of the first rotating shaft 123 passes through a gear 124 and is fixedly connected with a transmission wheel 125. A transmission belt 126 is wound around the outside of the transmission wheel 125. The positioning plate 122 is fixedly connected with the positioning assembly 22. The first rotating shaft 123 is clamped inside the isolation assembly 14. The gear 124 is meshed with the tooth blocks 114 inside the diversion cylinder 111. The transmission wheel 125 is in transmission connection with the screening assembly 13 through the transmission belt 126. By designing the isolation assembly 14, when processing sand and cement powder with relatively high humidity, an external hot air blower needs to be connected to the mounting holes 144 outside the mounting plate 143, and hot air is continuously injected into the device to increase the temperature inside the device, dry the sand and cement powder, and at the same time accelerate their moving speed. With the rotation of the diversion cylinder 111 and the screening cylinder 131, the sand and powder tumble inside the device, increasing the contact efficiency between the air and them, and further improving the processing effect and efficiency of the device on the sand and powder.

[0056] As another embodiment of the present invention, the screening component 13 includes a screen cylinder 131, a first spiral blade 132 is fixedly connected inside the screen cylinder 131, the inner wall of the screen cylinder 131 is fixedly connected to the outer wall of the first spiral blade 132, and sealing sleeves 133 are sleeved on both sides of the screen cylinder 131. The screen cylinder 131 is transmission-connected to the feeding component 15 through the first spiral blade 132, one of the sealing sleeves 133 is clamped with the isolation component 14, and the other sealing sleeve 133 is clamped on one side of the frame component 23. The screen cylinder 131 is transmission-connected to the transmission wheel 125 through the transmission belt 126. The isolation component 14 includes an isolation sleeve 141, and a rotating groove 142 is opened on one side of the isolation sleeve 141. The rotating groove 142 is annular, and a mounting plate 143 is rotatably connected in the rotating groove 142. The mounting plate 143 is annular, and the cross-section of the mounting plate 143 is I-shaped. A plurality of mounting holes 144 are provided on one side of the mounting plate 143. The first rotating shaft 123 is clamped in one of the mounting holes 144. The isolation sleeve 141 is fixedly connected to the outside of the guide tube 111. The feeding assembly 15 is clamped on one side of the isolation sleeve 141, and the sealing sleeve 133 is clamped on the other side of the isolation sleeve 141. By opening a rotating groove 142 in the isolation sleeve 141 and arranging a mounting plate 143 in the rotating groove 142, it is ensured that when the guide tube 111 rotates, the isolation sleeve 141 will rotate accordingly, and the mounting plate 143 will remain fixed because the first rotating shaft 123 is in place, ensuring that the mounting hole 144 is always located in the upper half of the guide tube 111 to avoid leakage of internal sand and gravel.

[0057] As another embodiment of the present invention, the feeding assembly 15 includes a feeding barrel 151, a feeding cover 152 is fixedly connected to the upper part of the feeding barrel 151, the feeding barrel 151 is communicated with the feeding cover 152, two reinforcing ribs 153 are fixedly connected to the lower part of the feeding barrel 151, a second bearing 154 is clamped on one side of the inner wall of the feeding barrel 151, a second rotating shaft 155 is sleeved in the second bearing 154, a second spiral blade 156 is fixedly connected to the outer side of the second rotating shaft 155, and the feeding barrel 151 is clamped on one side of the isolation sleeve 141. The upper material cylinder 151 is connected to the screen cylinder 131 through the isolation sleeve 141, the reinforcing rib 153 is fixedly connected to the top of the base 21, and the second rotating shaft 155 passes through the isolation sleeve 141 and is fixedly connected to the first spiral blade 132. Due to the provision of the first spiral blade 132 and the second spiral blade 156, the sand and gravel will quickly enter the screen cylinder 131 after entering the upper material cylinder 151, and the screen cylinder 131 can quickly discharge the screened sand and gravel, thereby improving the operating efficiency of the device and avoiding the occurrence of residual sand and gravel inside.

[0058] The positioning component 22 includes four fixed blocks 221, and two positioning frames 222 are fixedly connected above the four fixed blocks 221. The positioning frames 222 are designed in an arc shape. A limiting wheel 223 is clamped inside the positioning frames 222. The fixed blocks 221 are fixedly connected above the base 21. One side of one of the fixed blocks 221 is fixedly connected to the driver 25. The limiting wheel 223 is rotatably connected to the outside of the diversion cylinder 111. The frame body component 23 includes a bracket 231. The top of the bracket 231 is fixedly connected to a discharge hood 232. A discharge chute 233 is opened below the discharge hood 232. The bracket 231 is fixedly connected above the base 21. The discharge hood 232 is clamped on the other side of the diversion cylinder 111. The sealing sleeve 133 on the other side of the sieve cylinder 131 is clamped to one side of the discharge hood 232. Since the first rotating shaft 123 is connected to the positioning frame 222 through the first bearing 121 and the positioning plate 122, it is ensured that the gear 124 and the transmission wheel 125 always maintain the state of self-rotation in place when the diversion cylinder 111 rotates, reducing the possibility of sand and gravel entering. At the same time, the stability of the operation of the device is ensured.

[0059] Working principle: This embodiment provides a multifunctional sand screening machine and method for building construction. When in use, the sand and gravel to be processed are put into the feeding component 15, and the driver 25 is started. The driver 25 drives the driving wheel 26 to rotate, and drives the diversion component 11 to rotate through the friction between the driving wheel 26 and the diversion component 11. At the same time, the transmission component 12 rotates in the opposite direction and drives the screening component 13 to rotate. Since the screening component 13 is connected to the feeding component 15, the sand and gravel entering the feeding component 15 will enter the screening component 13 under the drive of the feeding component 15. At this time, while the screening component 13 rotates as a whole, it pushes the sand and gravel to move to the other side, and the sand and gravel are screened by moving and rotating inside the screening component 13. The qualified sand and gravel will fall into the diversion component 11. Since the diversion component 11 is in a rotating state, the sand and gravel will be discharged under the transportation of the diversion component 11, while the sand and gravel that do not meet the standard will be discharged along the screening component 13.

[0060] After injecting sand and gravel into the feeding hood 152, the driver 25 drives the diversion cylinder 111 to rotate through the driving wheel 26. When the diversion cylinder 111 rotates, the tooth blocks 114 inside it will drive the gear 124 to rotate. Subsequently, the gear 124 drives the sieve cylinder 131 to rotate through the first rotating shaft 123, the transmission wheel 125, and the transmission belt 126. The rotation of the sieve cylinder 131 drives the first spiral blade 132, as well as the second rotating shaft 155 and the second spiral blade 156 in the feeding cylinder 151 to rotate, thereby conveying the sand and gravel in the feeding cylinder 151 into the sieve cylinder 131. The sand and gravel are screened through the rotation of the sieve cylinder 131. At the same time, the first spiral blade 132 in the sieve cylinder 131 will push the large and unqualified sand and gravel to move in the sieve cylinder 131 until the unqualified sand and gravel are discharged. The sand and gravel discharged from the sieve cylinder 131 will be discharged under the drive of the guide vane 112 in the diversion cylinder 111;

[0061] When dealing with sand and gravel with relatively high humidity and cement powder, it is necessary to connect an external hot air blower to the mounting hole 144 outside the mounting plate 143 and continuously inject hot air into the device to increase the internal temperature of the device and dry the sand and gravel and cement powder with relatively high humidity.

[0062] The embodiments disclosed in the present invention are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A multifunctional sand screening machine for construction, comprising a driver (25), a driving wheel (26) and a guide tube (111), characterized in that: Also includes, A sand screening mechanism (1) comprises a flow guide component (11), a transmission component (12) connected to the flow guide component (11), a screening component (13), an isolation component (14) located on one side of the flow guide component (11), and a feeding component (15), wherein the screening component (13) is located inside the flow guide component (11), and the feeding component (15) is connected to the isolation component (14); and The positioning mechanism (2) comprises a base (21), a positioning assembly (22) arranged above the base (21), a frame assembly (23) connected to the base (21), a material guide plate (24) connected to the base (21), a driver (25) and a driving wheel (26), wherein the driver (25) is connected to one side of the positioning assembly (22), and the driving wheel (26) is connected to the driver (25).

2. The multifunctional sand screening machine for construction according to claim 1, characterized in that: The inner wall of the flow guide component (11) is meshed with the transmission component (12); one side of the flow guide component (11) is clamped with the isolation component (14); the transmission component (12) is clamped in the isolation component (14); one side of the isolation component (14) is clamped with the screening component (13); the other side of the screening component (13) is clamped with the feeding component (15); and the feeding component (15) is connected to the screening component (13) through the isolation component (14); The outer wall of the flow guide component (11) is clamped with the positioning component (22), the flow guide component (11) is transmission-connected with the driving wheel (26), the frame component (23) is clamped on the other side of the flow guide component (11), the guide plate (24) is located below the flow guide component (11), and the loading component (15) is fixedly connected above the base (21).

3. The multifunctional sand screening machine for construction according to claim 2, characterized in that: The upper part of the base (21) is fixedly connected to the positioning assembly (22) and the lower part of the frame assembly (23); the upper part of the base (21) is fixedly connected to a material guide plate (24); the material guide plate (24) is designed to be inclined; one side of the positioning assembly (22) is fixedly connected to a driver (25); and the output shaft of the driver (25) is fixedly connected to a driving wheel (26).

4. The multifunctional sand screening machine for construction according to claim 3, characterized in that: The flow guide assembly (11) comprises a flow guide cylinder (111), the inner wall of the flow guide cylinder (111) is fixedly connected to a flow guide blade (112), the flow guide blade (112) is of spiral design, the outside of the flow guide cylinder (111) is fixedly connected to a friction belt (113), the friction belt (113) is annular, and the inside of the flow guide cylinder (111) is fixedly connected to a plurality of tooth blocks (114); The outer wall of the guide tube (111) overlaps with the positioning assembly (22), the guide tube (111) is transmission-connected with the driving wheel (26) via a friction belt (113), and the guide tube (111) is meshed with the transmission assembly (12) via a gear block (114).

5. The multifunctional sand screening machine for construction according to claim 4, characterized in that: The transmission assembly (12) comprises a first bearing (121), a positioning plate (122) is clamped on one side of the first bearing (121), a first rotating shaft (123) is sleeved inside the first bearing (121), the other end of the first rotating shaft (123) passes through a gear (124) and is fixedly connected to a transmission wheel (125), and a transmission belt (126) is wound around the transmission wheel (125); The positioning plate (122) is fixedly connected to the positioning assembly (22), the first rotating shaft (123) is clamped in the isolation assembly (14), the gear (124) is meshed with the tooth block (114) in the guide cylinder (111), and the transmission wheel (125) is transmission-connected to the screening assembly (13) via a transmission belt (126).

6. The multifunctional sand screening machine for construction according to claim 5, characterized in that: The screening assembly (13) comprises a screen cylinder (131), a first spiral blade (132) is fixedly connected inside the screen cylinder (131), an inner wall of the screen cylinder (131) is fixedly connected to an outer wall of the first spiral blade (132), and sealing sleeves (133) are sleeved on both sides of the screen cylinder (131); The sieve drum (131) is connected to the feeding assembly (15) through a first spiral blade (132), one of the sealing sleeves (133) is clamped to the isolation assembly (14), and the other sealing sleeve (133) is clamped to one side of the frame assembly (23), and the sieve drum (131) is connected to the transmission wheel (125) through a transmission belt (126).

7. The multifunctional sand screening machine for construction according to claim 6, characterized in that: The isolation assembly (14) comprises an isolation sleeve (141), a rotation groove (142) is provided on one side of the isolation sleeve (141), the rotation groove (142) is annular, a mounting plate (143) is rotatably connected in the rotation groove (142), the mounting plate (143) is annular, the cross section of the mounting plate (143) is I-shaped, and a plurality of mounting holes (144) are provided on one side of the mounting plate (143); The first rotating shaft (123) is clamped in one of the mounting holes (144), the isolation sleeve (141) is fixedly connected to the outside of the guide tube (111), the feeding assembly (15) is clamped on one side of the isolation sleeve (141), and the sealing sleeve (133) is clamped on the other side of the isolation sleeve (141).

8. The multifunctional sand screening machine for construction according to claim 7, characterized in that: The feeding assembly (15) comprises a feeding barrel (151), the upper part of the feeding barrel (151) is fixedly connected with a feeding cover (152), the feeding barrel (151) is communicated with the feeding cover (152), the lower part of the feeding barrel (151) is fixedly connected with two reinforcing ribs (153), one side of the inner wall of the feeding barrel (151) is clamped with a second bearing (154), the second bearing (154) is sleeved with a second rotating shaft (155), and the second rotating shaft (155) is fixedly connected with a second spiral blade (156) outside; The upper material cylinder (151) is clamped on one side of the isolation sleeve (141), and the upper material cylinder (151) is connected to the screen cylinder (131) through the isolation sleeve (141). The reinforcing rib (153) is fixedly connected above the base (21), and the second rotating shaft (155) passes through the isolation sleeve (141) and is fixedly connected to the first spiral blade (132).

9. The multifunctional sand screening machine for construction according to claim 8, characterized in that: The positioning assembly (22) comprises four fixing blocks (221), and two positioning frames (222) are fixedly connected above the four fixing blocks (221), the positioning frames (222) are arc-shaped, and a limiting wheel (223) is clamped inside the positioning frames (222); The fixed block (221) is fixedly connected to the top of the base (21), one side of the fixed block (221) is fixedly connected to the driver (25), and the limiting wheel (223) is rotatably connected to the outside of the guide tube (111); The frame assembly (23) comprises a bracket (231), the top end of the bracket (231) is fixedly connected to a discharge cover (232), and a discharge chute (233) is provided below the discharge cover (232); The bracket (231) is fixedly connected to the top of the base (21), the discharge cover (232) is clamped on the other side of the guide cylinder (111), and the sealing sleeve (133) on the other side of the screen cylinder (131) is clamped on one side of the discharge cover (232).

10. A method for using a sand screening machine, according to the multifunctional sand screening machine for construction according to claim 9, characterized in that: The following steps are involved: S1, start the driver (25) and put the sand and gravel to be processed into the loading assembly (15); S2, the feeding component (15) discharges the sand and gravel into the screening component (13). After being processed by the screening component (13), the qualified sand and gravel are discharged along the frame component (23), and the unqualified sand and gravel are discharged along the screening component (13); S3. When the sand and gravel need to be heated, the external hot air blower is connected to the isolation assembly (14).

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