Concrete aggregate screening machine

Abstract

The utility model relates to a concrete aggregate screening machine, and belongs to the technical field of concrete production. The concrete aggregate screening machine comprises a base, a driving motor is arranged at the front end of the base, a loading seat connected with the base is arranged at the output end of the driving motor, an output motor is arranged at the lower end of the loading seat, and a cylinder seat located above the loading seat is arranged at the position of an output shaft of the output motor; a plurality of inserting grooves are formed in the upper end of the cylinder seat, a screen plate is inserted into the inserting grooves, a plurality of screen holes are formed in the screen plate, a protective cover located outside the cylinder seat is arranged on the loading seat, and a sealing cover locking assembly for sealing an opening of the cylinder seat and limiting and locking the screen plate is arranged on the protective cover; a discharge port is formed in the bottom of the surface of the protective cover; compared with the prior art, the concrete aggregate screening machine has the advantages that screening plates with different pore diameters can be replaced conveniently according to aggregate screening requirements, the mounting and replacing efficiency is improved, and meanwhile the screening effect and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, specifically to a concrete aggregate screening machine. Background Technology

[0002] Concrete is a general term for engineering composite materials in which aggregates are bound together by cementing materials. The term concrete usually refers to cement concrete, also known as ordinary concrete, which is made by mixing cement as cementing material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion. It is widely used in civil engineering.

[0003] During concrete production, aggregates are screened using screening machines. Existing screening machines are mostly vibrating screens, which have low screening efficiency and the screen mesh is not easy to replace, making them unable to adapt to the screening needs of aggregates with different aperture sizes. Therefore, we propose a concrete aggregate screening machine to solve this technical deficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a concrete aggregate screening machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concrete aggregate screening machine, including a base, a drive motor at the front end of the base, a loading seat connected to the base at the output end of the drive motor, an output motor at the lower end of the loading seat, a cylindrical seat above the loading seat at the output shaft of the output motor, a plurality of slots at the upper end of the cylindrical seat, a screen plate inserted into the slots, a plurality of screen holes on the screen plate, a protective cover outside the cylindrical seat on the loading seat, and a sealing and locking assembly for sealing the opening of the cylindrical seat and limiting and locking the screen plate.

[0006] The protective cover has a discharge port at the bottom surface and a receiving seat on the base.

[0007] The above technical solution uses a cylindrical seat to store aggregates, and a sealing and locking assembly to seal the opening of the cylindrical seat and lock the screen plate into the slot of the cylindrical seat. This makes it easy to replace screen plates with different apertures according to the needs of aggregate screening, thus improving the efficiency of installation and replacement.

[0008] After the opening of the cylindrical seat is sealed, the output motor drives the rotation of the cylindrical seat, which accelerates the rolling of the stored aggregate, allowing the aggregate to be screened out through the aperture of the screen plate, stored through the protective cover, and discharged from the discharge port. The remaining large aggregate particles are stored in the cylindrical seat. By driving the cylindrical seat on the loading seat to deflect by the drive motor, the aggregate in the cylindrical seat can be tilted and stored in the receiving seat, improving the screening effect and efficiency.

[0009] As a preferred technical solution of this utility model, the sealing and locking assembly includes a support base located at the upper end of the protective cover, a hydraulic push rod at the upper end of the support base, a rotating seat at the push rod of the hydraulic push rod, and a cover plate at the lower end of the rotating seat that seals the opening of the cylindrical seat.

[0010] As a preferred embodiment of this utility model, the cover plate is provided with a plurality of locking blocks located in the slots to limit the position of the sieve plate.

[0011] Using the above technical solution, the hydraulic push rod pushes the cover plate downward, and simultaneously drives the locking block downward, so that the cover plate seals the opening of the cylindrical seat. At the same time, the locking block is inserted into the slot to limit and lock the top of the screen plate. In addition, the rotating seat and the cover plate are connected to ensure that the normal rotation of the cylindrical seat will not be interfered with.

[0012] As a preferred embodiment of this utility model, the bottom wall of the protective cover is inclined at a 45-degree angle from left to right, with the inclination direction facing the discharge port.

[0013] By adopting the above technical solution, the materials discharged into the protective cover can be discharged from the discharge port through the inclined bottom, thus avoiding blockage.

[0014] As a preferred embodiment of this utility model, the upper surface of the cylindrical base is higher than the upper surface of the protective cover.

[0015] The above technical solution facilitates the discharge of aggregates from the cylindrical seat to the receiving seat.

[0016] As a preferred embodiment of this utility model, when the loading seat deflects, the upper end of the cylindrical seat tilts downward and is located above the opening of the receiving seat.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. This concrete aggregate screening machine stores aggregates through a cylindrical seat, and uses a sealing and locking assembly to seal the opening of the cylindrical seat and lock the screen plate into the slot of the cylindrical seat. Compared with the existing technology, it is convenient to replace screen plates with different apertures according to the needs of aggregate screening, thus improving the efficiency of installation and replacement.

[0019] 2. This concrete aggregate screening machine, after the opening of the cylindrical seat is sealed, drives the rotation of the cylindrical seat through the output motor, which accelerates the rolling of the stored aggregate, allowing the aggregate to be screened out through the aperture of the screen plate, stored through the protective cover, and discharged from the discharge port. The remaining large aggregate particles are stored in the cylindrical seat. By driving the cylindrical seat on the loading seat to deflect through the drive motor, the aggregate in the cylindrical seat can be tilted and stored in the receiving seat. Compared with the existing technology, the screening effect and efficiency are improved. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is an enlarged view of section A of this utility model;

[0022] Figure 3 This is a partial sectional perspective view of the present invention;

[0023] Figure 4 This is a side view of the present invention;

[0024] Figure 5 This is a side perspective view of the present invention;

[0025] Figure 6 This is a top view of the present invention.

[0026] In the diagram: 1. Base; 2. Drive motor; 3. Loading seat; 4. Output motor; 5. Cylindrical seat; 6. Slot; 7. Screen plate; 8. Screen hole; 9. Support seat; 10. Hydraulic push rod; 11. Cover plate; 12. Rotating seat; 13. Protective cover; 14. Discharge port; 15. Receiving seat; 16. Locking block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 6 The concrete aggregate screening machine in this embodiment mainly consists of a base 1, a drive motor 2, a loading seat 3, an output motor 4, a cylindrical seat 5, a screen plate 7, a protective cover 13, a sealing and locking assembly, a discharge port 14, and a receiving seat 15. Through the coordinated work of each component, it achieves efficient screening of concrete aggregate and facilitates the replacement of screen plates 8 with different apertures to adapt to different screening requirements.

[0029] The base 1 serves as the supporting foundation for the entire screening machine. It is made of high-strength steel and has sufficient rigidity and stability to withstand various loads generated during the operation of the screening machine. Its shape is a rectangular flat plate structure, and the surface is treated with anti-rust to extend its service life.

[0030] The base 1 has multiple mounting holes for fixing the screening machine to the ground to ensure the stability of the equipment during operation.

[0031] The drive motor 2 is mounted and fixed on the front surface of the base 1 and is firmly connected to the base 1 by bolts. The drive motor 2 is a three-phase asynchronous motor with appropriate power, which can provide sufficient power to drive the loading seat 3 to perform deflection movement.

[0032] The output end of the drive motor 2 is connected and fixed to the loading seat 3 through a coupling, so as to transmit the rotational motion of the motor to the loading seat 3.

[0033] The lower surface of the loading seat 3 is fixedly mounted with an output motor 4 by bolts.

[0034] During operation, the loading seat 3 can deflect under the drive of the drive motor 2, and the deflection angle can be set according to the actual screening requirements.

[0035] The output motor 4 is also a three-phase asynchronous motor. Its output shaft is set vertically upward and is connected and fixed to the cylindrical seat 5 through a coupling. The function of the output motor 4 is to drive the cylindrical seat 5 to rotate around its own axis, thereby causing the aggregate inside the cylindrical seat 5 to roll and improve the screening efficiency.

[0036] The cylindrical seat 5 is a hollow cylindrical structure made of wear-resistant steel to reduce the wear of the inner wall of the cylindrical seat 5 by the aggregate during rolling. The cylindrical seat 5 is located above the loading seat 3 and can rotate at high speed around its own axis by the drive of the output motor 4.

[0037] The upper surface of the cylindrical seat 5 is higher than the upper surface of the protective cover 13. This design facilitates the smooth pouring of aggregate from the cylindrical seat 5 into the receiving seat 15 when the loading seat 3 deflects.

[0038] The upper surface of the cylindrical base 5 has several slots 6, which are evenly distributed on the upper circumference of the cylindrical base 5 for inserting the sieve plate 7. The size of the slots 6 matches the size of the sieve plate 7 to ensure that the sieve plate 7 can be stably inserted into the slots 6.

[0039] The sieve plate 7 is a semi-circular flat plate structure with multiple sieve holes 8 evenly distributed on it. The shape and size of the sieve holes 8 can be designed according to different screening requirements. Common sieve hole shapes include round and square. The sieve plate 7 is made of high-strength and wear-resistant materials, such as stainless steel, to ensure that it is not easily damaged during long-term use.

[0040] The sieve plate 7 is inserted into the slot 6 of the cylindrical seat 5 and locked by the cap locking assembly to prevent the sieve plate 7 from falling off during the rotation of the cylindrical seat 5.

[0041] The protective cover 13 is installed and fixed on the loading seat 3, located outside the cylindrical seat 5, to block the splashed aggregate during the screening process, protect the safety of the operators, and collect the screened fine aggregate.

[0042] The bottom wall of the protective cover 13 is inclined downward at a 45-degree angle from left to right, with the inclination direction facing the discharge port 14. This inclined design facilitates the smooth discharge of fine aggregates into the protective cover 13 through the inclined bottom and from the discharge port 14, avoiding material accumulation and blockage in the protective cover 13.

[0043] The protective cover 13 is fixedly connected to the loading seat 3 by bolts, and the connection is firm and reliable.

[0044] The cap locking assembly includes:

[0045] Support base 9: The support base 9 is a rectangular structure and is fixedly installed on the upper surface of the protective cover 13 by bolts to support the hydraulic push rod 10.

[0046] Hydraulic push rod 10: The hydraulic push rod 10 is a standard hydraulic push rod commonly found on the market. Its push rod is set vertically downward and is fixedly connected to the upper surface of the support seat 9 by bolts. The hydraulic push rod 10 can provide stable thrust to push the cover plate 11 to move up and down.

[0047] Rotating seat 12: The rotating seat 12 is installed and fixed at the push rod of the hydraulic push rod 10. It is connected to the push rod through the bearing to realize the rotation relative to the push rod. The lower end of the rotating seat 12 is provided with a cover plate 11 at the same center.

[0048] Cover plate 11: Cover plate 11 is a circular flat plate structure, and its diameter matches the diameter of the upper opening of the cylindrical seat 5. It is used to seal the opening of the cylindrical seat 5. Multiple locking blocks 16 are fixed on the outside of cover plate 11. The number of locking blocks 16 is the same as the number of slots 6 on the cylindrical seat 5, and their positions correspond one-to-one. When cover plate 11 moves down to seal the cylindrical seat 5, the locking blocks 16 are inserted into the slots 6 respectively to limit and lock the screen plate 7, preventing the screen plate 7 from moving during the rotation of the cylindrical seat 5.

[0049] The discharge port 14 is located at the bottom of the right side surface of the protective cover 13. It is a rectangular opening structure used to discharge the screened fine aggregate. The size of the discharge port 14 is designed according to the actual discharge volume to ensure that the fine aggregate can be discharged smoothly.

[0050] The receiving seat 15 is installed and fixed on the left side of the base 1, located below the cylindrical seat 5 after the loading seat 3 is deflected. The receiving seat 15 is a rectangular box structure with an open top, used to collect the remaining large aggregate particles in the cylindrical seat 5. The inner wall of the receiving seat 15 is smoothed to facilitate the sliding and collection of aggregate particles.

[0051] This concrete aggregate screening machine is equipped with a simple control system to control the operation of the drive motor 2, the output motor 4 and the hydraulic push rod 10. The control system mainly consists of a control panel and a controller.

[0052] The control panel is installed on the side of the screening machine for easy operation. The control panel has multiple buttons for controlling the start and stop of the drive motor 2, the start and stop of the output motor 4, and the raising and lowering of the hydraulic push rod 10.

[0053] The controller uses a programmable logic controller (PLC), which has advantages such as high reliability and convenient programming. The controller receives instruction signals from the control panel and controls the operation of drive motor 2, output motor 4, and hydraulic push rod 10 according to the preset program.

[0054] Usage steps: Select a screen plate with an appropriate screen aperture size according to the required aggregate aperture size.

[0055] Operate the control panel to raise the hydraulic push rod 10, which in turn moves the cover plate 11 and the locking block 16 upward, opening the opening of the cylindrical seat 5.

[0056] The concrete aggregate to be screened is added into the cylindrical base 5 using a suitable adding device.

[0057] Insert the sieve plate 7 into the slot 6 of the cylindrical base 5 to ensure that the sieve plate 7 is securely installed.

[0058] Operate the control panel again to lower the hydraulic push rod 10, which in turn moves the cover plate 11 down to seal the cylindrical seat 5. At the same time, the locking block 16 is inserted into the slot 6 to limit and lock the screen plate 7.

[0059] Operate the control panel and start the output motor 4. The output motor 4 drives the cylindrical seat 5 to rotate around its own axis, causing the aggregate inside the cylindrical seat 5 to roll. During the rolling process, fine aggregate smaller than the screen hole diameter of the screen plate 7 falls into the protective cover 13 through the screen hole 8 and is discharged from the discharge port 14 along the inclined bottom wall of the protective cover 13.

[0060] After screening for a period of time, turn off the output motor 4 and stop the rotation of the cylindrical base 5.

[0061] Operate the control panel and start the drive motor 2. The drive motor 2 causes the loading seat 3 to deflect, so that the upper end of the cylindrical seat 5 tilts downward and is located above the opening of the receiving seat 15.

[0062] The remaining large aggregate particles in the cylindrical seat 5 are poured into the receiving seat 15 under the action of gravity, completing the screening process.

[0063] In summary, this concrete aggregate screening machine, through its reasonable structural design and advanced control scheme, achieves efficient screening of concrete aggregates. It also has advantages such as convenient screen plate replacement, high screening efficiency, and stable and reliable structure, and can meet the screening needs of different concrete aggregates.

[0064] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete aggregate screening machine, including a base, characterized in that, The front end of the base is provided with a drive motor, the output end of the drive motor is provided with a loading seat connected to the base, the lower end of the loading seat is provided with an output motor, the output shaft of the output motor is provided with a cylindrical seat located above the loading seat, the upper end of the cylindrical seat is provided with several slots, a sieve plate is inserted into the slots, the sieve plate is provided with multiple sieve holes, the loading seat is provided with a protective cover located outside the cylindrical seat, the protective cover is provided with a sealing and locking assembly for sealing the opening of the cylindrical seat and limiting and locking the sieve plate; The protective cover has a discharge port at the bottom surface and a receiving seat on the base.

2. The concrete aggregate screening machine according to claim 1, characterized in that: The sealing and locking assembly includes a support base located at the upper end of the protective cover. The upper end of the support base is provided with a hydraulic push rod, and the push rod of the hydraulic push rod is provided with a rotating seat. The lower end of the rotating seat is provided with a cover plate that seals the opening of the cylindrical seat.

3. The concrete aggregate screening machine according to claim 2, characterized in that: The cover plate is provided with a plurality of locking blocks located in the slots to limit the position of the sieve plate.

4. The concrete aggregate screening machine according to claim 1, characterized in that: The bottom wall of the protective cover is inclined at a 45-degree angle from left to right, with the inclination direction facing the discharge port.

5. The concrete aggregate screening machine according to claim 1, characterized in that: The upper surface of the cylindrical base is higher than the upper surface of the protective cover.

6. The concrete aggregate screening machine according to claim 1, characterized in that: When the loading seat deflects, the upper end of the cylindrical seat tilts downward and is located above the opening of the receiving seat.

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