Clinker-free admixture stirring device for sprayed concrete

Abstract

The utility model relates to the technical field of sprayed concrete processing, in particular to a clinker-free admixture stirring device for sprayed concrete, a servo motor is fixedly connected to the middle of a cover plate, and an output shaft of the servo motor is rotatably connected with the cover plate through a sealing bearing. According to the clinker-free admixture stirring device for spraying concrete, the output end of the hydraulic cylinder moves back and forth to drive the sliding block to slide along the outer wall of the cross rod, so that the barrel body and the movable plate are driven to swing back and forth along the connecting point of the barrel body and the base, reciprocating swing of the barrel body is achieved, and mixed raw materials in the barrel body can be shaken out from a discharging opening; an operator rotates a second bolt, the second bolt is sequentially screwed into a first threaded hole and a second threaded hole, so that a sleeve is fixed to the outer wall of the stirring roller, most of residual raw materials on the inner wall of the barrel body can be scraped off by a scraping plate, the operator does not need to stretch the hand into the barrel body, and the operation is convenient. And an operator can clean the barrel body more conveniently.

Description

Technical Field

[0001] This utility model relates to the field of shotcrete processing technology, specifically to a shotcrete mixing device without clinker admixtures. Background Technology

[0002] Shotcrete is a construction method that uses a pressure spray gun to spray and pour fine aggregate concrete. Clinkerless cement is made by mixing active admixtures (such as granulated blast furnace slag, fly ash, volcanic ash, steel slag, etc.) and alkaline activators (such as lime, etc.) or sulfate activators (such as gypsum) in proportion and grinding them into fine powder. During mixing, a clinkerless admixture mixing device is usually required.

[0003] For example, an energy-saving and environmentally friendly cement mixing device with announcement number "CN205685539U" transports cement, sand, and gravel into the mixing tank via a transmission belt; the motor drives the mixing shaft to rotate and mix the materials. After mixing, the materials are discharged through the outlet. This improves the quality of the cement slurry, further saves water resources, protects the environment, increases mixing effect and work efficiency, and reduces cement dust. However, the bottom of this energy-saving and environmentally friendly cement mixing device is relatively flat, and some of the mixed materials cannot be discharged from the outlet. Operators need to use tools to remove them, which takes a long time to complete the discharge. Furthermore, when cleaning the inner wall of the mixing tank after the materials are discharged, the tank is relatively high, requiring operators to reach inside to clean, making it inconvenient for operators to clean the lower parts of the inner wall. Utility Model Content

[0004] The purpose of this invention is to solve the problems of a flat bottom in the mixing tank, where some mixed material cannot be discharged from the outlet and requires operators to use tools to remove it, which takes a long time to complete the discharge. In addition, when the material is discharged, the mixing tank is relatively high, and the operators need to reach into the mixing tank to clean it, which is inconvenient for the operators to clean the lower part of the mixing tank. Therefore, this invention proposes a clinker-free admixture mixing device for shotcrete.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A clinker-free admixture mixing device for shotcrete is designed, comprising a base and a bucket. The bucket is located on top of the base, and a discharge mechanism is located on top of the base. A cleaning mechanism is located inside the bucket. A sealing gasket is fixedly connected to the upper end of the bucket, and the sealing gasket abuts against a cover plate. The cover plate is connected to the bucket by a first bolt. A servo motor is fixedly connected to the middle of the cover plate, and the output shaft of the servo motor is rotatably connected to the cover plate through a sealed bearing.

[0007] Preferably, both sides of the cover plate are fixedly connected to a feed inlet, and the end of the output shaft of the servo motor is fixedly connected to a stirring roller.

[0008] Preferably, the discharge mechanism includes a hydraulic cylinder, the output end of which is movably connected to a slider via a pin, the inner wall of which is slidably connected to a crossbar, both ends of which are fixedly connected to fixed blocks, the upper ends of which are fixedly connected to the barrel body, a movable plate is provided on the left side of the hydraulic cylinder, the upper end of which is fixedly connected to the barrel body, and the lower part of which is movably connected to a base via a pin, and a support plate is provided on the right side of the hydraulic cylinder, the upper part of which is in contact with the barrel body.

[0009] Preferably, the support plate is connected to the base by screws at the bottom, and the end of the hydraulic cylinder is fixedly connected to the base.

[0010] Preferably, the cleaning mechanism includes sleeves, both sleeves are fixedly connected to the right side of the curved plate, the inner walls of the sleeves are slidably connected to the stirring roller, the outer walls of the curved plate are fixedly connected to scrapers, the outer walls of the scrapers are in contact with the inner walls of the barrel, and the inner wall of the upper sleeve is machined with a first threaded hole, both the first threaded hole and the second threaded hole are threadedly connected to a second bolt.

[0011] Preferably, the second threaded hole is machined on the outer wall of the stirring roller, and a discharge port is fixedly connected to the lower left side of the barrel.

[0012] The present invention proposes a clinker-free admixture mixing device for shotcrete, which has the following advantages: through the cooperation of the base and the discharge mechanism, the output end of the hydraulic cylinder moves back and forth, driving the slider to slide along the outer wall of the crossbar, thereby driving the barrel and the movable plate to swing back and forth along the connection point with the base, so as to realize the reciprocating swing of the barrel, which can shake out the mixed raw materials in the barrel from the discharge port, and the discharge work can be completed in a short time.

[0013] With the cooperation of the stirring roller and the cleaning mechanism, the sleeve is put on the stirring roller with the second threaded hole. At this time, the first threaded hole and the second threaded hole are aligned. The operator rotates the second bolt so that the second bolt is screwed into the first threaded hole and the second threaded hole in sequence, thereby fixing the sleeve on the outer wall of the stirring roller. This allows the scraper to scrape off most of the residual raw materials on the inner wall of the barrel without the operator having to put their hands into the barrel, making it easier for the operator to clean the barrel. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A frontal sectional view;

[0016] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0017] Figure 4 for Figure 2 A magnified view of part B in the diagram;

[0018] Figure 5 for Figure 2 A three-dimensional schematic diagram of the stirring roller;

[0019] Figure 6 for Figure 2 A partial 3D schematic diagram of the cleaning mechanism;

[0020] Figure 7 This is a schematic diagram showing the connection between the support plate and the base.

[0021] In the diagram: 1. Base, 2. Discharge mechanism, 201. Hydraulic cylinder, 202. Slider, 203. Crossbar, 204. Fixed block, 205. Movable plate, 206. Support plate, 3. Discharge port, 4. Agitating roller, 5. Barrel body, 6. Cover plate, 7. Servo motor, 8. Feed port, 9. Cleaning mechanism, 901. Sleeve, 902. Bending plate, 903. Scraper, 904. First threaded hole, 905. Second threaded hole, 906. Second bolt, 10. First bolt, 11. Sealing gasket. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] See attached document Figure 1-7In this embodiment, a clinker-free admixture mixing device for shotcrete includes a base 1 and a barrel 5. The barrel 5 is located above the base 1, and a discharge mechanism 2 is located above the base 1. A cleaning mechanism 9 is located inside the barrel 5. A sealing gasket 11 is fixedly connected to the upper end of the barrel 5. The sealing gasket 11 abuts against a cover plate 6. The cover plate 6 is connected to the barrel 5 by a first bolt 10. A servo motor 7 is fixedly connected to the middle of the cover plate 6. The output shaft of the servo motor 7 is rotatably connected to the cover plate 6 through a sealed bearing.

[0024] Both sides of the cover plate 6 are fixedly connected to the feed inlet 8. The output shaft end of the servo motor 7 is fixedly connected to the stirring roller 4. The support plate 206 is connected to the bottom through a screw base. The end of the hydraulic cylinder 201 is fixedly connected to the base 1. The second threaded hole 905 is machined on the outer wall of the stirring roller 4. The lower left side of the barrel body 5 is fixedly connected to the discharge port 3.

[0025] The discharge mechanism 2 includes a hydraulic cylinder 201. The model of the hydraulic cylinder 201 is selected according to actual needs to meet the working requirements. The output end of the hydraulic cylinder 201 is movably connected to a slider 202 via a pin. The inner wall of the slider 202 is slidably connected to a crossbar 203. Both ends of the crossbar 203 are fixedly connected to fixed blocks 204. The upper ends of the fixed blocks 204 are fixedly connected to the barrel body 5. A movable plate 205 is provided on the left side of the hydraulic cylinder 201. The upper end of the movable plate 205 is fixedly connected to the barrel body 5. The lower part of the movable plate 205 is movably connected to the base 1 via a pin. A support plate 206 is provided on the right side of the hydraulic cylinder 201. The upper part of the support plate 206 is in contact with the barrel body 5.

[0026] The cleaning mechanism 9 includes sleeves 901. The right sides of both sleeves 901 are fixedly connected to bending plates 902. The inner walls of both sleeves 901 are slidably connected to stirring rollers 4. Scrapers 903 are fixedly connected to the outer walls of both bending plates 902. The outer walls of scrapers 903 are in contact with the inner walls of the barrel 5. The inner wall of the upper sleeve 901 is machined with a first threaded hole 904. The first threaded hole 904 and the second threaded hole 905 are both threadedly connected to a second bolt 906.

[0027] Working principle:

[0028] When using a clinker-free admixture mixing device for shotcrete:

[0029] By using the threaded holes machined at the four corners of the base 1 and the fastening bolts, the equipment is installed in the corresponding position. The operator opens the sealing plug on the feed port 8 and adds the raw material without clinker admixture into the barrel 5 through the feed ports 8 on both sides. Then, the sealing plug is closed, and the power supply of the servo motor 7 is turned on. The output shaft of the servo motor 7 rotates, driving the stirring roller 4 to rotate. The stirring roller 4 stirs the raw material in the barrel 5. When the raw material in the barrel is well mixed, the power supply of the servo motor 7 is turned off.

[0030] Then the operator first turns the screw to move the support plate 206 to the right, opens the electronic valve at the discharge port 3, and starts the hydraulic cylinder 201. The output end of the hydraulic cylinder 201 moves back and forth, driving the slider 202 to slide along the outer wall of the crossbar 203, thereby driving the barrel 5 and the movable plate 205 to swing back and forth along the connection point with the base 1. The barrel 5 swings back and forth, which can shake the mixed raw materials in the barrel 5 out of the discharge port 3. The discharge work can be completed in a short time.

[0031] After the mixed raw materials are completely discharged, the operator rotates multiple first bolts 10 to remove the cover plate 6 (during removal and installation, hooks can be hung on the rings on both sides of the cover plate 6, and the cover plate 6 can be moved by a crane). Then, the stirring roller 4 can be removed, and the sleeve 901 is fitted onto the stirring roller with the second threaded hole 905. At this point, the first threaded hole 904 and the second threaded hole 905 are aligned. The operator rotates the second bolt 906, causing it to screw into the first threaded hole 904 and the second threaded hole 905 in sequence, thereby fixing the sleeve 901 to the outer wall of the stirring roller 4. Then, the operator rotates multiple first bolts 10 to reinstall the cover plate 6, and restarts the servo motor 7. The output shaft of the servo motor 7 rotates, driving the stirring roller 4 to rotate, which in turn drives the bending plate 902 and the scraper 903 to rotate. The scraper 903 can scrape off most of the remaining raw materials from the inner wall of the barrel 5. The system eliminates the need for operators to reach into the barrel 5, making it easier for them to clean. When not in use, operators can remove the cover plate 6 by turning multiple first bolts 10, and then remove the sleeve 901 from the mixing roller 4 by turning the second bolt 906. Finally, operators can use a high-pressure water gun to rinse the inner wall of the barrel 5 and the mixing roller 4. The waste and wastewater after rinsing can be discharged from the outlet 3. After cleaning, operators can turn multiple first bolts 10 to install the cover plate 6. Operators can then move the support plate 206 to the far left and turn the screws to fix the support plate 206 to the base 1. The hydraulic cylinder 201 can then be used to support the barrel 5. When the bottom of the barrel 5 is in contact with the support plate 206, the hydraulic cylinder 201 is closed for easy use next time. Then, operators can spray the mixed clinker-free admixture into concrete using a pressure spray gun for construction.

[0032] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A clinker-free admixture mixing device for shotcrete, comprising a base (1) and a bucket (5), wherein the bucket (5) is disposed above the base (1), characterized in that: The base (1) is provided with a discharge mechanism (2) above it. The barrel (5) is provided with a cleaning mechanism (9) inside it. A sealing gasket (11) is fixedly connected to the upper end of the barrel (5). The sealing gasket (11) is pressed against the cover plate (6) above it. The cover plate (6) is connected to the barrel (5) by a first bolt (10). A servo motor (7) is fixedly connected to the middle of the cover plate (6). The output shaft of the servo motor (7) is rotatably connected to the cover plate (6) through a sealed bearing.

2. A no-clinker admixture mixing device for sprayed concrete according to claim 1, characterized in that: Both sides of the cover plate (6) are fixedly connected to the feed inlet (8), and the end of the output shaft of the servo motor (7) is fixedly connected to the stirring roller (4).

3. The no-clinker admixture mixing device for sprayed concrete according to claim 1, characterized in that: The discharge mechanism (2) includes a hydraulic cylinder (201). The output end of the hydraulic cylinder (201) is movably connected to a slider (202) via a pin. The inner wall of the slider (202) is slidably connected to a crossbar (203). Both ends of the crossbar (203) are fixedly connected to a fixed block (204). The upper ends of the fixed blocks (204) are fixedly connected to the barrel body (5). A movable plate (205) is provided on the left side of the hydraulic cylinder (201). The upper end of the movable plate (205) is fixedly connected to the barrel body (5). The lower part of the movable plate (205) is movably connected to the base (1) via a pin. A support plate (206) is provided on the right side of the hydraulic cylinder (201). The upper part of the support plate (206) is in contact with the barrel body (5).

4. A no-cement admixture mixing device for sprayed concrete according to claim 3, characterized in that: The support plate (206) is connected to the base (1) by screws at the bottom, and the end of the hydraulic cylinder (201) is fixedly connected to the base (1).

5. The no-clinker admixture mixing device for sprayed concrete according to claim 1, characterized in that: The cleaning mechanism (9) includes a sleeve (901). The right sides of both sleeves (901) are fixedly connected to the bending plate (902). The inner walls of the sleeves (901) are slidably connected to the stirring roller (4). The outer walls of the bending plate (902) are fixedly connected to scrapers (903). The outer walls of the scrapers (903) are in contact with the inner walls of the barrel (5). The inner wall of the upper sleeve (901) is machined with a first threaded hole (904). The first threaded hole (904) and the second threaded hole (905) are both threadedly connected to the second bolt (906).

6. A no-cement admixture mixing device for sprayed concrete according to claim 5, characterized in that: The second threaded hole (905) is machined on the outer wall of the stirring roller (4), and the discharge port (3) is fixedly connected to the lower left side of the barrel (5).

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