Concrete stirring double-helix mixing bin

Abstract

The utility model relates to the related technical field of building material processing equipment, in particular to a concrete mixing double-helix mixing bin which comprises a bin body, two rotating shafts arranged in the bin body and helical blades connected to the rotating shafts, and further comprises a track rod connected to the interior of the bin body and located on one side of the helical blades, the axis of the track rod is parallel to the axis of the rotating shaft; the advancing compartment moves on the rails, and a driving part for driving the advancing compartment to move is arranged on the advancing compartment; the scraping plate is arranged on one side of the advancing compartment and is in movable contact with the spiral blade, then the output motor is used for rotating the spiral blade, meanwhile, the driving part is used for driving the advancing compartment to move, a certain contact force is always kept between the scraping plate and the surface of the spiral blade, and under the rotation of the spiral blade and the movement of the advancing compartment, the scraping plate and the spiral blade can be separated from each other. And the scrapers can clean attachments attached to the surfaces of the spiral blades.

Description

Technical Field

[0001] This utility model relates to the technical field of building material processing equipment, and in particular to a double-helix mixing silo for concrete mixing. Background Technology

[0002] Concrete is a commonly used material in construction. Currently, concrete is mainly produced in batching plants. When mixing concrete, a double-helix mixing silo is used, which mainly plays a mixing role. Its main function in the concrete production and processing process is to mix different materials in proportion to ensure that the materials are mixed evenly, thereby affecting the processing quality and efficiency of concrete.

[0003] However, when using this double-spiral mixing silo for concrete mixing, the two spiral blades inside the silo mix the material within. Since the material contains liquids and other additives, the mixture becomes sticky and adheres to the spiral blades. Due to the large size of the equipment, it's inconvenient to remove the spiral blades during cleaning. Therefore, only a simple water rinse is possible, but residues remain. Over time, these residues become stubborn and difficult to clean. Furthermore, if the residue isn't thoroughly cleaned, more material will adhere to the spiral blades during use, affecting their performance.

[0004] Based on the above situation, it is necessary to design a double-helix mixing silo for concrete mixing to solve the above problems. Utility Model Content

[0005] This utility model provides a double-spiral mixing silo for concrete mixing to solve the problem of difficult cleaning of the spiral blades in the prior art.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] A double-helix concrete mixing silo includes a silo body with two rotating shafts connected to helical blades. It also includes: a track rod connected inside the silo body, located on one side of the helical blades, with its axis parallel to the axes of the rotating shafts; a moving carriage that moves on the track, equipped with a drive unit for moving the carriage; a scraper on one side of the carriage, in movable contact with the helical blades; and a cleaning assembly, the output end of which is located on the carriage and used to rinse the surface of the helical blades with water.

[0008] Preferably, it also includes two through holes that are formed on the traveling car and are connected to each other. The track rod passes through the two through holes and is slidably connected to the two through holes. The driving component includes a rotating frame connected to the traveling car, two track wheels rotatably connected to the rotating frame, and a drive motor connected to the traveling car. The track wheels are located on both sides of the track rod and are in close contact with the track rod.

[0009] Preferably, the drive unit further includes gears connected to one side of two track wheels respectively, and the two gears mesh with each other, and the output end of the drive motor is connected to one of the gears.

[0010] Preferably, a telescopic frame is connected to one side of the traveling compartment, and there are two scrapers, which are slidably connected to the upper and lower ends of the telescopic frame, respectively. A spring is provided inside the telescopic frame, and the two ends of the spring are respectively connected to the two scrapers.

[0011] Preferably, the cleaning assembly includes two water spray pipes located on both sides of the telescopic frame, a telescopic pipe installed on the travel chamber, and a pump body. The input ends of the two water spray pipes are connected to a water collection tank, the output end of the telescopic pipe is connected to the input end of the water collection tank, the output end of the pump body is connected to the input end of the telescopic pipe, and the water spray pipes are provided with a plurality of nozzles.

[0012] Preferably, a friction ring is connected at the through hole of the traveling car, the inner wall of the friction ring is in contact with the surface of the track rod, and an annular scraper is connected to the side of the friction ring away from the through hole, the blade of the annular scraper being away from the location of the traveling car and in contact with the surface of the track rod.

[0013] Preferably, the device also includes a controller, and a pressure sensor is provided inside the telescopic frame. The two scrapers are respectively connected to touch protrusions on one side inside the telescopic frame, and the touch protrusions are in active contact with the sensing end of the pressure sensor.

[0014] The beneficial effects of this utility model are as follows: By setting a track rod on one side of the spiral blade, and then setting a traveling box that can move along the track rod axially, the spiral blade is rotated by an output motor, and the traveling box is moved by a drive component, so that the scraper and the surface of the spiral blade always maintain a certain contact force. Under the rotation of the spiral blade and the movement of the traveling box, the scraper will clean the adhering substances on the surface of the spiral blade, which can clean the materials firmly attached to the spiral blade and avoid the adhering substances affecting the use of the spiral blade. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a front view of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a partial structural schematic diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the through-hole structure of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the driving component of this utility model;

[0021] Figure 6 This is a three-dimensional structural diagram of the cleaning component of this utility model;

[0022] Figure 7 This is a schematic diagram of the telescopic frame and some structural cross-sections of the present invention.

[0023] In the diagram, 1. Chamber body; 2. Rotating shaft; 3. Spiral blade; 4. Track rod; 5. Traveling chamber; 6. Scraper; 7. Driving component; 8. Through hole; 9. Rotating frame; 10. Track wheel; 11. Drive motor; 12. Gear; 13. Telescopic frame; 14. Spring; 15. Spray pipe; 16. Telescopic pipe; 17. Pump body; 18. Water collection chamber; 19. Spray head; 20. Friction ring; 21. Annular scraper; 22. Pressure sensor; 23. Touch protrusion; 24. Controller. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0025] Reference Figures 1-7As shown, the concrete mixing double-spiral mixing silo includes a silo body 1, with two rotating shafts 2 inside the silo body 1. Spiral blades 3 are connected to the rotating shafts 2, and the rotating shafts 2 and spiral blades 3 are driven to rotate by output motors mounted on the silo body 1. The silo body 1 also includes a track rod 4 connected inside the silo body 1, a moving carriage 5 on the track, a scraper 6 on one side of the moving carriage 5, and a cleaning assembly. Specifically, the track rod 4 is located on one side of the spiral blades 3, and the axis of the track rod 4 is parallel to the axis of the rotating shafts 2. The moving carriage 5 is equipped with a drive component 7 for moving the moving carriage 5. The scraper 6 is in active contact with the spiral blades 3, and the scraper 6 moves with the moving carriage 5. The output end of the cleaning assembly is mounted on the moving carriage 5 and is used to rinse the surface of the spiral blades 3 with water.

[0026] When the spiral blade 3 needs cleaning, the drive unit 7 moves the travel chamber 5, causing the scraper 6 on the travel chamber 5 to move to a position where it contacts the surface of the spiral blade 3. Then, the output motor rotates the spiral blade 3, and the drive unit 7 drives the travel chamber 5 to move, ensuring that the scraper 6 maintains a certain contact force with the surface of the spiral blade 3. With the rotation of the spiral blade 3 and the movement of the travel chamber 5, the scraper 6 cleans the deposits attached to the surface of the spiral blade 3. Furthermore, the cleaning component enhances the cleaning effect of the scraper 6 on the spiral blade 3. Therefore, compared to rinsing with a water pipe, this cleaning method is more thorough and can remove materials firmly adhering to the spiral blade 3, preventing the deposits from affecting the use of the spiral blade 3.

[0027] Reference Figure 1 As shown, in order to ensure that the traveling car 5 can move smoothly on the track rod 4, the traveling car 5 also includes two through holes 8 that are opened on the traveling car 5 and connected to each other. The track rod 4 passes through the two through holes 8 and is slidably connected to the two through holes 8. When the traveling car 5 slides on the track rod 4, the through holes 8 limit the movement of the traveling car 5, so that it moves in a fixed direction.

[0028] The drive unit 7 includes a rotating frame 9 connected inside the travel chamber 5, two track wheels 10 rotatably connected to the rotating frame 9, and a drive motor 11 connected inside the travel chamber 5. The track wheels 10 are located on both sides of the track rod 4 and are in close contact with the track rod 4. Under the action of the through hole 8, the travel chamber 5 slides stably on the track rod 4. Under the action of the two track wheels 10, when the track wheels 10 rotate under the drive of the drive motor 11, the travel chamber 5 can move on the track rod 4. When the drive motor 11 stops outputting, the travel chamber 5 will stop moving under the action of the friction between the track wheels 10 and the track rod 4. During this process, the drive motor 11 can control the start and stop of the travel chamber 5 by rotating the track wheels 10.

[0029] Furthermore, in order to enable the two track wheels 10 to move synchronously and increase the stability of the starting and stopping of the carriage 5, the drive unit 7 also includes gears 12 connected to one side of each of the two track wheels 10, and the two gears 12 mesh with each other. The output end of the drive motor 11 is connected to one of the gears 12. When the drive motor 11 drives one of the gears 12 to rotate, the gear 12 will drive the other gear 12 to rotate, thereby driving the two track wheels 10 to rotate.

[0030] To ensure the stability of the scraper 6 during use, a telescopic frame 13 is connected to one side of the travel chamber 5. The scraper 6 is slidably connected to the telescopic frame 13. A spring 14 is provided inside the telescopic frame 13. The spring 14 is connected to the scraper 6. During use, when the scraper 6 comes into contact with the surface of the spiral blade 3, the scraper 6 will squeeze the spring 14, so that when the scraper 6 moves relative to the spiral blade 3, the scraper 6 will also make close contact with the spiral blade 3.

[0031] As a further optimization of this utility model, two scrapers 6 are provided, and the two scrapers 6 are slidably connected to the upper and lower ends of the telescopic frame 13 respectively. The two ends of the spring 14 are connected to the two scrapers 6 respectively. When the traveling chamber 5 moves from top to bottom, the scraper 6 located below the telescopic frame 13 will contact the surface of the spiral blade 3. When the traveling chamber 5 moves to the bottom of the chamber 1 and separates from the surface of the spiral blade 3, the spiral blade 3 will continue to rotate and rotate in different clockwise directions under the drive of the output motor. Then, under the action of the drive motor 11, the traveling chamber 5 is driven upward. At this time, the scraper 6 located above the telescopic frame 13 will contact the surface of the spiral blade 3 and clean the surface of the spiral blade 3. Therefore, the setting of two scrapers 6 will clean both sides of the spiral blade 3.

[0032] It also includes a controller 24. To ensure the stability of the contact between the scraper 6 and the spiral blade 3, a pressure sensor 22 is provided inside the telescopic frame 13. Two scrapers are respectively connected to touch protrusions 23 on one side of the telescopic frame 13. The touch protrusions 23 are in active contact with the sensing end of the pressure sensor 22. When the scraper 6 and the spiral blade 3 are in contact, the touch protrusions 23 on the scraper 6 will contact the pressure sensor 22. Through the pressure sensor 22, the controller 24 will receive the force of the mutual compression between the scraper 6 and the spiral blade 3. Then, the controller 24 will adjust its internal parameters accordingly. The controller first sets a preset threshold to output a control signal to the drive motor 11, which increases or decreases the output power of the drive motor 11. This controls the speed of the moving chamber 5, thereby adjusting the pressure between the scraper 6 and the spiral blade 3, increasing the cleaning effect of the scraper 6 on the spiral blade 3. In addition to the controller 24, when the cleaning program command is set in advance, the output power of the output motor is set to a value corresponding to the output power of the drive motor 11, so that the moving chamber 5 and the spiral blade 3 being cleaned can move accurately relative to each other, thus improving the cleaning operation.

[0033] The cleaning assembly includes two water spray pipes 15 located on both sides of the telescopic frame 13, a telescopic pipe 16 installed on the travel chamber 5, and a pump body 17. The input ends of the two water spray pipes 15 are connected to a water collection tank 18, and the cleaning water in the water collection tank 18 is diverted to the two water spray pipes 15. The output end of the telescopic pipe 16 is connected to the input end of the water collection tank 18, and the output end of the pump body 17 is connected to the input end of the telescopic pipe 16. The water spray pipes 15 are equipped with several nozzles 19. When the travel chamber 5 moves, it drives the telescopic rod to extend, thereby ensuring the supply of cleaning water to the water spray pipes 15. Under the action of the cleaning water sprayed by the nozzles 19, the deposits on the spiral blades 3 before and after the scraper 6 are wetted and softened, making the cleaning effect of the scraper 6 on the spiral blades 3 more efficient.

[0034] Furthermore, in order to allow debris attached to the track rod 4 to enter the interior of the travel chamber 5 through the through hole 8, and to prevent debris from clogging the through hole 8 and affecting the travel efficiency of the travel chamber 5, a friction ring 20 is connected at the through hole 8 of the travel chamber 5. The inner wall of the friction ring 20 is in contact with the surface of the track rod 4. An annular scraper 21 is connected to the side of the friction ring 20 away from the through hole 8. The blade of the annular scraper 21 is away from the location of the travel chamber 5 and in contact with the surface of the track rod 4. When the travel chamber 5 moves, the annular scraper 21 will scrape off the attached debris on the track rod 4 in the direction of travel of the travel chamber 5. Then, under the action of the friction ring 20, the fine impurities generated on the track will be scraped off, ensuring that the track rod 4 inside the travel chamber 5 is in a clean state.

Claims

1. A concrete mixing double-screw mixing bin, comprising a bin body (1), two rotating shafts (2) are arranged in the bin body (1), and screw blades (3) are connected to the rotating shafts (2), characterized in that, Also include: The track bar (4) is connected inside the bin body (1), the track bar (4) is located at one side of the spiral blade (3), and the axis of the track bar (4) is parallel to the axis of the rotating shaft (2); The traveling compartment (5) moves on the track, and the traveling compartment (5) is provided with a driving member (7) for driving the traveling compartment (5) to move; The scraper (6) is arranged on one side of the traveling compartment (5), and the scraper (6) is in movable contact with the spiral blade (3); The cleaning assembly is arranged on the traveling compartment (5) and used for washing the surface of the spiral blade (3).

2. The twin-screw concrete mixing silo of claim 1, wherein, Two through holes (8) are arranged on the traveling compartment (5) and are connected, the track bar (4) passes through the two through holes (8) and is in sliding connection with the two through holes (8), the driving member (7) comprises a rotating frame (9) connected in the traveling compartment (5), two track wheels (10) rotatably connected to the rotating frame (9), and a driving motor (11) connected in the traveling compartment (5), and the track wheels (10) are respectively located on both sides of the track bar (4) and are in close contact with the track bar (4).

3. The twin-shaft concrete mixing silo of claim 2, wherein, The driving member (7) further comprises two gears (12) connected to one side of the two track wheels (10) respectively, and the two gears (12) are in meshing connection, and the output end of the driving motor (11) is connected with one of the gears (12).

4. The twin-shaft concrete mixing silo of claim 1, wherein, The traveling compartment (5) is connected with a telescopic frame (13), the scraper (6) is two, and the two scrapers (6) are respectively connected to the upper and lower ends of the telescopic frame (13), the telescopic frame (13) is provided with a spring (14), and the two ends of the spring (14) are respectively connected with the two scrapers (6).

5. The twin-shaft concrete mixing silo of claim 1, wherein, The cleaning assembly comprises two water spraying pipes (15) located on both sides of the telescopic frame (13), a telescopic pipe (16) arranged on the traveling compartment (5), and a pump body (17), the input end of the two water spraying pipes (15) is connected with a water collecting bin (18), the output end of the telescopic pipe (16) is connected with the input end of the water collecting bin (18), the output end of the pump body (17) is connected with the input end of the telescopic pipe (16), and a plurality of spray heads (19) are arranged on the water spraying pipe (15).

6. The twin-shaft concrete mixing silo of claim 2, wherein, The traveling compartment (5) is connected with a friction circle (20) at the position of the through hole (8), the inner side wall of the friction circle (20) is in contact with the surface of the track bar (4), the side of the friction circle (20) away from the through hole (8) is connected with an annular scraper (21), and the cutting edge of the annular scraper (21) is away from the position of the traveling compartment (5) and is in contact with the surface of the track bar (4).

Images