Concrete circulation stirring and lifting device for civil construction and using method

Abstract

The invention discloses a concrete circulation stirring and lifting device for civil construction and a using method, and mainly relates to the technical field of concrete stirring. Comprising a circulating feeding mechanism, and a driving stirring mechanism, a material conveying control mechanism and a material placing mechanism which are sequentially arranged from top to bottom, the material placing mechanism comprises a material placing seat and a material conveying shell, a cavity is formed in the material placing seat, the material conveying shell is arranged at the top of the material placing seat and communicates with the cavity in the material placing seat, part or all of the material placing seat is buried underground, and a plurality of feeding ports communicating with the outside are formed in the top of the material placing seat; the circulating feeding mechanism comprises a second transmission sleeve coaxial with the first transmission sleeve, and a first spiral blade is arranged in the second transmission sleeve; the distance between the feeding port and the ground is reduced, and a concrete raw material lifting mechanism does not need to be additionally arranged; and meanwhile, the circulating feeding mechanism is arranged in the device, extra space is not occupied, and the concrete stirring effect can be improved.

Description

Technical Field

[0001] This invention relates to the field of concrete mixing technology, specifically to a concrete circulating mixing and lifting device for civil construction and its usage method. Background Technology

[0002] A concrete mixer is a machine that mixes cement, sand, aggregate, and water to produce concrete. It mainly consists of a mixing drum, feeding and discharging mechanisms, a water supply system, a prime mover, a transmission mechanism, a frame, and support devices. Based on working nature, it can be classified as intermittent (batch) or continuous; based on mixing principle, it can be classified as gravity-fed or forced-mixed; based on installation method, it can be classified as stationary or mobile; based on discharge method, it can be classified as tilting or non-tilting; and based on mixing drum structure, it can be classified as pear-type, drum-type, double-cone, disc-type vertical shaft, and groove-type horizontal shaft, etc.

[0003] To improve the mixing effect of concrete, an invention patent with publication number CN214819654U discloses an efficient concrete mixing device for engineering. It uses an external circulating feeding mechanism to transport concrete from the bottom of the box to the top of the box to improve the mixing efficiency of concrete. However, it places the circulating feeding mechanism on the outside of the box, which increases the space occupied. In addition, its inlet is high above the ground, and an additional lifting mechanism is required to transport the concrete raw materials into the box, which increases the cost. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art and provide a concrete circulating mixing and lifting device and its usage method for civil construction. This reduces the distance between the feed inlet and the ground, eliminating the need for an additional concrete raw material lifting mechanism. At the same time, the circulating feeding mechanism is arranged inside the device, which does not occupy additional space and can improve the concrete mixing effect.

[0005] To achieve the above objectives, the present invention employs the following technical solution: A concrete circulating mixing and lifting device for civil construction includes a circulating feeding mechanism and, from top to bottom, a driving mixing mechanism, a conveying control mechanism, and a material placement mechanism. The material placement mechanism includes a material placement seat with an internal cavity and a conveying shell disposed on top of the material placement seat and communicating with the internal cavity. The material placement seat is partially or completely buried underground, and has several inlets communicating with the outside at its top. A conical collecting cavity communicating with the material placement seat is located at the bottom of the middle part of the material placement seat, and a retainer is provided inside the conical collecting cavity. A first transmission sleeve is provided at the bottom end of the retainer. The driving mixing mechanism includes a mixing shell, a discharge pipe disposed on the outer wall of the bottom of the mixing shell, a sealing cover disposed on the top of the mixing shell, and a stirring mechanism disposed inside the mixing shell. The mixing device includes a connecting plate with a guide hole and an isolation gate for closing the guide hole. The top end of the conveying shell and the bottom end of the mixing shell are fixedly connected to the connecting plate, and the conveying shell and the mixing shell are connected through the guide hole. The circulating feeding mechanism includes a second transmission sleeve coaxial with the first transmission sleeve. The top end of the second transmission sleeve is located in the upper part of the mixing shell, and the bottom end is located in the conical collection cavity. The second transmission sleeve is provided with a first spiral blade. A transmission shaft is fixedly provided on the first spiral blade. The sealing cover is provided with a power system for driving the transmission shaft and the mixing device. The bottom end of the transmission shaft is provided with a transmission frame. The transmission frame is located below the first spiral blade. Several arc-shaped scrapers are evenly provided on the transmission frame along its circumference.

[0006] Preferably, the upper end face of the sealing cap is provided with a water injection pipe.

[0007] Preferably, the power system includes a transmission box disposed on the top of the sealing cover and a first transmission motor and a second transmission motor disposed on the top of the transmission box; the stirring device includes a transmission sleeve rotatably disposed in the middle of the sealing cover, the transmission sleeve and the first transmission motor are driven by a gear set, the bottom end of the transmission sleeve is located inside the stirring shell, and a plurality of stirring frames are provided at the bottom of the outer wall of the transmission sleeve, and a plurality of stirring rods are fixedly disposed at the bottom end of each stirring frame.

[0008] Preferably, the multiple stirring racks are arranged circumferentially relative to the axis of the transmission sleeve, the multiple stirring rods are arranged linearly along the radial direction of the stirring shell, and the length of the multiple stirring rods decreases sequentially from the inside to the outside along the radial direction of the stirring shell.

[0009] Preferably, the drive shaft passes through the drive sleeve from bottom to top and is rotatably connected to the drive sleeve, and the top end of the drive shaft is connected to the second drive motor.

[0010] Preferably, the material conveying housing is provided with a conical guide seat.

[0011] Preferably, a second helical blade is fixedly installed in the middle of the lower end face of the transmission frame, the bottom end of the transmission shaft passes through the middle of the transmission frame and is fixedly connected to the second helical blade, the second helical blade is rotatably connected to the first transmission sleeve, and the bottom end of the transmission shaft passes through the second helical blade and is rotatably connected to the middle of the material placement seat.

[0012] Preferably, the spiral lines of the first spiral blade and the second spiral blade are consistent, and the rotation direction of the first spiral blade, the second spiral blade and the multiple arc-shaped scrapers is counterclockwise.

[0013] Preferably, there are two guide holes, which are symmetrically arranged on the connecting plate. The isolation gate is hinged to the connecting plate and has a handle.

[0014] A method for using a concrete circulating mixing and lifting device for civil construction includes the following steps: S1. First, install the material placement seat under the ground surface, so that the upper surface of the material placement seat is aligned with the ground. Turn on the power and input the concrete raw materials into the inner side of the material placement seat through multiple feed ports. S2. Start the power system. Multiple arc-shaped scrapers can scrape the concrete raw materials to the inside of the conical collection chamber to collect the concrete raw materials. The circulating feeding mechanism then transports the concrete raw materials into the mixing shell. S3. Start the power system and use the mixing device to fully mix the concrete raw materials in the mixing shell; S4. After the concrete raw materials and water are mixed, the isolation gate is opened to allow the mixing shell and the conveying shell to be connected through the guide hole. The concrete is then conveyed into the conveying shell through the guide hole, and then the concrete in the conveying shell flows into the conical collection cavity. S5. Repeat steps S2-S4 to thoroughly mix the concrete. After mixing, open the valve on the discharge pipe and discharge the concrete through the discharge pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention embeds the material placement seat under the ground surface, ensuring that the upper surface of the material placement seat coincides with the ground, thus reducing the distance between the inlet and the ground. Concrete raw materials are input into the inner side of the material placement seat through multiple inlets, which effectively reduces the difficulty of feeding and eliminates the need for an additional concrete raw material lifting mechanism. At the same time, the circulating feeding mechanism is arranged inside the device, without occupying additional space. The circulating feeding mechanism transports the concrete in the material placement mechanism to the driving mixing mechanism for circulating mixing, which can improve the mixing effect of the concrete.

[0016] 2. In this invention, the first drive motor synchronously drives multiple mixing frames to rotate through a gear set and a transmission sleeve. Multiple mixing rods decrease in number from the inside to the outside along the radial direction of the mixing shell. Thus, the mixing frames can fully mix the concrete raw materials in the mixing shell through the mixing rods. By driving the isolation gate plate to rotate relative to the connecting plate through the handle, the mixing shell and the material conveying shell are connected through the guide hole. The second spiral blade and the first spiral blade can continuously perform a backflow operation on the concrete after it has been mixed by multiple mixing frames, which can effectively mix the concrete thoroughly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention.

[0019] Figure 3 This is a cross-sectional schematic diagram of the circulating feeding mechanism of the present invention.

[0020] Figure 4 for Figure 3 A magnified structural diagram of region A in the middle.

[0021] Figure 5 This is a cross-sectional structural diagram of the stirring mechanism of the present invention.

[0022] Figure 6 This is a schematic diagram of the installation structure of the stirring rack of the present invention.

[0023] Figure 7 This is a cross-sectional structural diagram of the material conveying control mechanism of the present invention.

[0024] Figure 8 This is a cross-sectional structural diagram of the material feeding mechanism of the present invention.

[0025] Figure 9 This is a partial exploded structural diagram of the circulating feeding mechanism of the present invention.

[0026] The attached figures are labeled as follows: 1. Driving stirring mechanism; 101. Stirring shell; 102. Discharge pipe; 103. Sealing cover; 104. Transmission box; 105. First transmission motor; 106. Second transmission motor; 107. Stirring frame; 108. Stirring rod; 109. Transmission sleeve; 2. Material conveying control mechanism; 201. Connecting plate; 202. Isolation gate; 203. Handle; 3. Material placement mechanism; 301. Material placement seat; 302. Inlet; 303. Material conveying shell; 304. Conical guide seat; 305. Conical collecting cavity; 306. Holder; 307. First transmission sleeve; 4. Circulating feeding mechanism; 401. Second transmission sleeve; 402. First spiral blade; 403. Transmission shaft; 404. Transmission frame; 405. Arc-shaped scraper; 406. Second spiral blade. Detailed Implementation

[0027] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0028] The first drive motor 105 (model GV50-3.7KW-60-S) and the second drive motor 106 (model YEJ3-112M-4) mentioned in this invention can both be obtained from the market or through private customization.

[0029] Example 1: As shown in the attached document Figure 1-9 As shown, the present invention is a concrete circulating mixing and lifting device for civil construction, including a circulating feeding mechanism 4 and a driving mixing mechanism 1, a material conveying control mechanism 2, and a material placement mechanism 3 arranged sequentially from top to bottom.

[0030] A driving mixing mechanism 1 is installed directly above the material feeding mechanism 3. The driving mixing mechanism 1 includes a mixing shell 101. A sealing cover 103 is fixedly installed on the upper end of the mixing shell 101. A transmission box 104 is fixedly installed in the middle of the upper surface of the sealing cover 103. A water injection pipe is provided on one side of the transmission box 104 located on the upper surface of the sealing cover 103. The water injection pipe facilitates the adjustment of the concrete humidity.

[0031] A first drive motor 105 and a second drive motor 106 are fixedly installed at both ends of the upper surface of the transmission box 104, respectively. A transmission sleeve 109 is rotatably connected to the inner side of the middle part of the sealing cover 103. A gear set is provided inside the transmission box 104. The output end of the first drive motor 105 is connected to the transmission sleeve 109 through the gear set. The upper end of the transmission sleeve 109 passes through the sealing cover 103 and the transmission box 104 and is fixedly connected to the gear set. Multiple agitators are fixedly installed on the outer side of the bottom end of the transmission sleeve 109 below the sealing cover 103. The mixing frame 107 has multiple mixing rods 108 fixedly installed at its bottom end. The multiple mixing frames 107 are arranged circumferentially relative to the axis of the transmission sleeve 109. The multiple mixing rods 108 are arranged linearly along the radial direction of the mixing shell 101. The length of the multiple mixing rods 108 decreases sequentially from the inside to the outside along the radial direction of the mixing shell 101. The mixing shell 101 is connected to the discharge pipe 102. The mixing frame 107 can fully mix the concrete raw materials in the mixing shell 101 through the mixing rods 108.

[0032] A material conveying control mechanism 2 is installed between the driving mixing mechanism 1 and the material feeding mechanism 3. A circulating feeding mechanism 4 is installed inside the driving mixing mechanism 1 and the material feeding mechanism 3. The material feeding mechanism 3 includes a material feeding seat 301, the upper end surface of which coincides with the ground. The upper end surface of the material feeding seat 301 is provided with multiple feed inlets 302. A material conveying housing 303 is fixedly installed between the multiple feed inlets 302 in the middle of the material feeding seat 301. A cone is fixedly installed inside the material feeding seat 301. The material guide seat 304 has a conical collecting cavity 305 on the inner side of the middle part of the material placement seat 301. A retainer 306 is installed on the inner side of the conical collecting cavity 305. A first transmission sleeve 307 is fixedly installed on the lower end face of the retainer 306. The inlet 302 is fixedly connected to the first transmission sleeve 307 through the retainer 306. The bottom end of the first transmission sleeve 307 is inserted into the inner side of the conical collecting cavity 305. The conical collecting cavity 305 facilitates the collection of concrete.

[0033] The material conveying control mechanism 2 includes a connecting plate 201. The material conveying housing 303 and the mixing housing 101 are fixedly connected by the connecting plate 201. Isolation gates 202 are rotatably connected to both sides of the connecting plate 201. The two isolation gates 202 are installed in a centrally symmetrical manner relative to the connecting plate 201. A handle 203 is fixedly provided on one side of the isolation gate 202. Two guide holes are provided on the upper end face of the material conveying housing 303 and the lower end face of the mixing housing 101. The isolation gate 202 is inserted between two adjacent guide holes. By opening and closing the isolation gate 202 relative to the connecting plate 201, the connection between the mixing housing 101 and the material conveying housing 303 can be closed.

[0034] The circulating feeding mechanism 4 includes a second transmission sleeve 401, which is fixedly connected to the mixing shell 101 and the conveying shell 303. The second transmission sleeve 401 is coaxial with the first transmission sleeve 307. A first spiral blade 402 is rotatably connected to the inner side of the second transmission sleeve 401. A transmission shaft 403 is fixedly installed on the inner side of the first spiral blade 402. A transmission sleeve 109 is rotatably connected to the transmission shaft 403. The upper end of the transmission shaft 403 passes through the transmission sleeve 109 and the transmission box 104 and is connected to the output end of the second transmission motor 106 through a coupling. A transmission frame 404 is fixedly installed on the outer side of the bottom end of the transmission shaft 403 below the first spiral blade 402. Multiple arc-shaped scrapers 405 are fixedly installed on the outer side of the transmission frame 404. The multiple arc-shaped scrapers 405 are arranged in a circle relative to the axis of the transmission shaft 403. The multiple arc-shaped scrapers 405 can scrape the concrete raw materials to the inner side of the conical collection cavity 305 to realize the collection of concrete raw materials.

[0035] A second spiral blade 406 is fixedly installed in the middle of the lower end face of the transmission frame 404. The bottom end of the transmission shaft 403 passes through the middle of the transmission frame 404 and is fixedly connected to the second spiral blade 406. The spiral lines of the first spiral blade 402 and the second spiral blade 406 are consistent. The rotation direction of the first spiral blade 402, the second spiral blade 406 and the multiple arc-shaped scrapers 405 is counterclockwise. The second spiral blade 406 is rotatably connected to the first transmission sleeve 307. The bottom end of the transmission shaft 403 passes through the second spiral blade 406 and is rotatably connected to the middle of the material placement seat 301. The second spiral blade 406 and the first spiral blade 402 can continuously perform a backflow operation on the concrete mixed by the multiple mixing racks 107.

[0036] Example 2: The present invention describes a method for using a concrete circulating mixing and lifting device for civil construction, comprising the following steps: S1. The material placement seat 301 is fitted and installed below the ground surface, so that the upper surface of the material placement seat 301 is aligned with the ground. The power is turned on, and concrete raw materials are input into the inner side of the material placement seat 301 through multiple feed ports 302. The second drive motor 106 is started, so that the second drive motor 106, under the support of the transmission box 104, drives the first spiral blade 402 and the second spiral blade 406 to rotate inside the second transmission sleeve 401 and the first transmission sleeve 307 through the transmission shaft 403. The transmission shaft 403 drives multiple arc-shaped scrapers 405 to rotate counterclockwise inside the material placement seat 301 through the transmission frame 404.

[0037] S2. Then, the concrete raw materials can be scraped to the inside of the conical collection cavity 305 by multiple arc-shaped scrapers 405 to achieve the collection of concrete raw materials. The bottom end of the first transmission sleeve 307 is inserted into the inside of the conical collection cavity 305. Then, under the guidance of the first transmission sleeve 307 and the second transmission sleeve 401, the concrete raw materials are transported to the inside of the mixing shell 101 in sequence through the second spiral blade 406 and the first spiral blade 402. Water injection is performed through the water injection pipe provided on the upper end face of the first drive motor 105.

[0038] S3. Start the first drive motor 105, so that the first drive motor 105, under the support of the transmission box 104, drives multiple mixing racks 107 to rotate synchronously through the gear set and transmission sleeve 109. Multiple mixing rods 108 decrease in number from the inside to the outside along the radial direction of the mixing shell 101, so that the mixing racks 107 can fully mix the concrete raw materials in the mixing shell 101 through the mixing rods 108.

[0039] S4. After the concrete raw materials are mixed with water, the two isolation gates 202 are opened, so that the isolation gates 202 are rotated relative to the connecting plate 201 by the handle 203, so that the mixing shell 101 and the conveying shell 303 are connected through the guide hole, and the concrete is conveyed to the inside of the conveying shell 303 through the guide hole. Then, the conveying shell 303 can be guided by the conical guide seat 304 and the flow can be collected by multiple conical collection cavities 305, and the concrete can be piled up again on the inside of the conical collection cavity 305.

[0040] S5. Then, the concrete can be returned to the inside of the mixing shell 101 through the second spiral blade 406 and the first spiral blade 402. The second spiral blade 406 and the first spiral blade 402 can continuously return the concrete after it has been mixed by multiple mixing racks 107, which can effectively mix the concrete thoroughly. After the mixing is completed, it is discharged through the discharge pipe 102. At this time, the first spiral blade 402 can lift the concrete, which is convenient for the concrete to be discharged.

Claims

1. A concrete circulating mixing and lifting device for civil construction, characterized in that: The system includes a circulating feeding mechanism (4) and a driving stirring mechanism (1), a conveying control mechanism (2), and a feeding mechanism (3) arranged sequentially from top to bottom. The feeding mechanism (3) includes a feeding seat (301) with an internal cavity and a conveying shell (303) located on the top of the feeding seat (301) and communicating with the internal cavity of the feeding seat (301). The feeding seat (301) is partially or completely buried underground, and several inlets (302) communicating with the outside are provided on the top of the feeding seat (301). The bottom of the part is provided with a conical collecting cavity (305) communicating with the material placement seat (301), and a retainer (306) is provided in the conical collecting cavity (305). The bottom end of the retainer (306) is provided with a first transmission sleeve (307); the driving stirring mechanism (1) includes a stirring shell (101), a discharge pipe (102) provided on the outer wall of the bottom of the stirring shell (101), a sealing cover (103) provided on the top of the stirring shell (101), and a stirring device provided in the stirring shell (101); the material conveying control mechanism (2) includes The feeding mechanism (4) includes a connecting plate (201) with a guide hole and an isolation gate (202) for closing the guide hole. The top end of the feeding housing (303) and the bottom end of the stirring housing (101) are fixedly connected to the connecting plate (201), and the feeding housing (303) and the stirring housing (101) are connected through the guide hole. The circulating feeding mechanism (4) includes a second transmission sleeve (401) coaxial with the first transmission sleeve (307). The top end of the second transmission sleeve (401) is located in the upper part of the stirring housing (101), and the bottom end is located in a conical shape. Inside the collection chamber (305), the second transmission sleeve (401) is provided with a first spiral blade (402), and a drive shaft (403) is fixedly provided on the first spiral blade (402). The sealing cover (103) is provided with a power system for driving the drive shaft (403) and the stirring device. The bottom end of the drive shaft (403) is provided with a drive frame (404), which is located on the lower side of the first spiral blade (402). Several arc-shaped scrapers (405) are evenly provided on the drive frame (404) along the circumference of the drive frame (404).

2. The concrete circulating mixing and lifting device for civil construction according to claim 1, characterized in that: The upper end face of the sealing cap (103) is provided with a water injection pipe.

3. The concrete circulating mixing and lifting device for civil construction according to claim 1, characterized in that: The power system includes a transmission box (104) disposed on the top of the sealing cover (103) and a first transmission motor (105) and a second transmission motor (106) disposed on the top of the transmission box (104); the stirring device includes a transmission sleeve (109) rotatably disposed in the middle of the sealing cover (103), the transmission sleeve (109) and the first transmission motor (105) are driven by a gear set, the bottom end of the transmission sleeve (109) is located inside the stirring shell (101), and a plurality of stirring racks (107) are provided at the bottom of the outer wall of the transmission sleeve (109), and a plurality of stirring rods (108) are fixedly provided at the bottom end of each stirring rack (107).

4. A concrete circulating mixing and lifting device for civil construction according to claim 3, characterized in that: Multiple stirring racks (107) are arranged circumferentially relative to the axis of the transmission sleeve (109), and multiple stirring rods (108) are arranged linearly along the radial direction of the stirring shell (101). The length of the multiple stirring rods (108) decreases sequentially from the inside to the outside along the radial direction of the stirring shell (101).

5. A concrete circulating mixing and lifting device for civil construction according to claim 3, characterized in that: The drive shaft (403) passes through the drive sleeve (109) from bottom to top and is rotatably connected to the drive sleeve (109). The top end of the drive shaft (403) is connected to the second drive motor (106).

6. A concrete circulating mixing and lifting device for civil construction according to claim 1, characterized in that: The material conveying housing (303) is provided with a conical guide seat (304).

7. A concrete circulating mixing and lifting device for civil construction according to claim 1, characterized in that: A second helical blade (406) is fixedly installed in the middle of the lower end face of the transmission frame (404). The bottom end of the transmission shaft (403) passes through the middle of the transmission frame (404) and is fixedly connected to the second helical blade (406). The second helical blade (406) is rotatably connected to the first transmission sleeve (307). The bottom end of the transmission shaft (403) passes through the second helical blade (406) and is rotatably connected to the middle of the material placement seat (301).

8. A concrete circulating mixing and lifting device for civil construction according to claim 7, characterized in that: The first helical blade (402) and the second helical blade (406) have the same helix, and the first helical blade (402), the second helical blade (406) and the multiple arc-shaped scrapers (405) rotate counterclockwise.

9. A concrete circulating mixing and lifting device for civil construction according to claim 1, characterized in that: The number of the flow guide holes is two, and the two flow guide holes are symmetrically arranged on the connecting plate (201). The isolation gate (202) is hinged to the connecting plate (201), and a handle (203) is provided on the isolation gate (202).

10. A method of using the concrete circulating mixing and lifting device for civil construction as described in claim 1, characterized in that, Including the following steps: S1. First, the material placement seat (301) is fitted and installed below the ground surface so that the upper surface of the material placement seat (301) is aligned with the ground. Then, the power is turned on and the concrete raw materials are fed into the inner side of the material placement seat (301) through multiple feed ports (302). S2. Start the power system. Multiple arc-shaped scrapers (405) can scrape the concrete raw materials to the inside of the conical collection chamber (305) to collect the concrete raw materials. The concrete raw materials are then transported to the mixing shell (101) by the circulating feeding mechanism (4). S3. Start the power system and use the mixing device to fully mix the concrete raw materials in the mixing shell (101); S4. After the concrete raw materials are mixed with water, the isolation gate (202) is opened to realize the connection between the mixing shell (101) and the conveying shell (303) through the guide hole, and the concrete is conveyed to the conveying shell (303) through the guide hole. Then the concrete in the conveying shell (303) flows into the conical collection cavity (305). S5. Repeat steps S2-S4 to fully mix the concrete. After mixing, open the valve on the discharge pipe (102) and discharge the concrete through the discharge pipe (102).

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