A concrete mortar mixing device
By driving the sleeve and rotating rod to rotate in opposite directions and through the synergistic effect of the inner and outer spiral blades, a highly efficient countercurrent shear force field is formed, which solves the problem of uneven mixing caused by the co-rotation of the mixing rod and scraper in existing devices, and realizes rapid and uniform mixing and efficient stirring of concrete mortar.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SHENJIAN CONCRETE CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-07-21
AI Technical Summary
In existing concrete mixing equipment, the shear force caused by the co-rotation of the mixing rod and the scraper is insufficient, resulting in uneven mixing of concrete mortar and low mixing efficiency.
It adopts a counter-rotating drive between the sleeve and the rotating rod, combined with the synergistic effect of the inner and outer helical blades, to form a highly efficient counter-current shear force field. It is also equipped with a wall scraper and cross-distributed stirring rods to achieve uniform mixing throughout the entire area.
It improves the mixing efficiency of concrete mortar, ensures uniform mixing throughout the entire process, decomposes it into fine particles under shear force, increases the mixing rate, and optimizes the mixing effect through a closed-loop control system of servo motor and controller.
Smart Images
Figure CN224527576U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of concrete mortar mixing technology, specifically a concrete mortar mixing device. Background Technology
[0002] As an indispensable basic material in construction engineering, the quality of concrete mortar mixing directly affects the overall performance of the building.
[0003] An existing patent (publication number: CN222079650U) discloses a concrete mortar mixing device for road foundation construction, which solves the problem of uneven concrete mixing. It includes a mixing drum, a discharge pipe fixedly installed at the bottom of the mixing drum with a valve, a feed hopper fixedly installed at the top of the mixing drum, and a mixing mechanism installed on the mixing drum. This invention facilitates the mixing of concrete by cooperating with the motor and the mixing shaft, allowing the mixing rod to rotate. The outer ring rotates easily through the cooperation of the limiting groove and the limiting block, as well as the top ring and the connecting column. Stable rotation of the outer ring is achieved through the cooperation of the fixed sleeve and the second annular groove, as well as the support column and the first ball bearing. The top plate slides along the two columns through the cooperation of the large gear and the small gear, as well as the lead screw and the nut, thereby changing the height of the mixing rod and facilitating uniform mixing of the concrete.
[0004] Although the device in the aforementioned comparative document can change the height of the mixing rod, the mixing rod and the scraper rotate in the same direction, and the resulting shear force cannot mix the concrete mortar more quickly. In order to solve the above problems, a concrete mortar mixing device is proposed. Utility Model Content
[0005] To address the shortcomings of existing technologies, this application provides a concrete mortar mixing device that overcomes the bottleneck of mixing efficiency by driving the sleeve and the rotating rod in opposite directions and combining the synergistic effect of inner and outer spirals.
[0006] To achieve the above objectives, this application provides the following technical solution: a concrete mortar mixing device, comprising a mixing tank body and a mixing assembly, wherein the mixing assembly comprises a sleeve rotatably fitted on the top of the mixing tank body and a rotating rod rotatably fitted on the inner wall of the sleeve, a connecting sleeve fixedly connected to the top of the rotating rod, a sealed bearing fixedly connected to the inner wall of the connecting sleeve, the inner wall of the sealed bearing being fixedly connected to the outer surface of the sleeve, and a driving assembly provided on the top of the sleeve.
[0007] The bottom of the rotating rod is fixedly connected to a main spiral blade, the bottom of the sleeve is fixedly connected to a wall scraping frame, the main spiral blade is located inside the wall scraping frame, the shape of the wall scraping frame is adapted to the shape of the inner wall of the mixing tank body, the outer surface of the wall scraping frame is fixedly connected to evenly distributed wall scraping brushes, the inner wall of the wall scraping frame is fixedly connected to multiple stirring rods, and the bottom of the wall scraping frame is fixedly connected to an auxiliary spiral blade.
[0008] Through the above scheme, the drive components can achieve the opposite rotation of the sleeve and the rotating rod. Combined with the synergistic effect of the main and auxiliary spiral blades, a highly efficient counter-current shear force field is formed, which effectively improves the mixing efficiency of concrete mortar. At the same time, the scraper frame is equipped with a scraper brush, which can eliminate the stagnant layer on the inner wall of the mixing tank when rotating, achieving uniform mixing throughout the entire area. When the scraper frame rotates, it can also drive the cross-distributed mixing rods to rotate. The mixing rods rotate in the opposite direction to the main spiral blades, which can cause the concrete mortar to gradually decompose into fine particles under shear force until it is completely dissolved and fused, thereby improving the mixing rate of concrete mortar.
[0009] Furthermore, the multiple stirring rods inside the scraper frame are crisscrossed outside the main spiral blades, the auxiliary spiral blades have the same thread direction as the main spiral blades, and the multiple scraper brushes are adapted to the inner wall of the mixing tank body.
[0010] The above scheme defines the relationship between the mixing rod and the main spiral blade, which can improve the countercurrent shearing effect generated when the main spiral blade and the mixing rod rotate in opposite directions. This is beneficial to the rapid mixing of concrete mortar. Since the auxiliary spiral blade and the main spiral blade have the same thread direction, a highly efficient countercurrent shearing force field can be formed when the main spiral blade and the auxiliary spiral blade rotate in opposite directions, thereby improving the mixing efficiency.
[0011] Furthermore, the drive assembly includes a servo motor fixedly connected to the top of the mixing tank body, and an active bevel gear is fixedly connected to the output shaft end of the servo motor.
[0012] With the above solution, when the servo motor starts, it will drive the active bevel gear to rotate.
[0013] Furthermore, a first driven bevel gear is fixedly connected to the top of the sleeve, and a second driven bevel gear is fixedly connected to the top of the rotating rod. Both the first driven bevel gear and the second driven bevel gear mesh with the driving bevel gear.
[0014] With the above scheme, when the driving bevel gear rotates, it will simultaneously drive the first driven bevel gear and the second driven bevel gear to rotate, and the first driven bevel gear and the second driven bevel gear rotate in opposite directions, thereby enabling the sleeve and the rotating rod to rotate in opposite directions.
[0015] Furthermore, a reinforcing frame is fixedly connected to the top of the mixing tank body, and the top end of the rotating rod is rotatably sleeved inside the reinforcing frame.
[0016] The above-mentioned solution improves the stability of the rotating rod by installing a reinforcement frame, allowing it to rotate more smoothly and facilitating the thorough mixing of concrete mortar.
[0017] Furthermore, the top of the mixing tank body is equipped with two symmetrical feeding ports, the bottom of the mixing tank body is equipped with a discharge port, and a solenoid valve is installed on the pipe section of the discharge port.
[0018] The above scheme allows for easy addition of concrete mortar raw materials to be mixed into the mixing tank through the feeding port, and easy discharge of the fully mixed concrete mortar from the mixing tank through the discharge port and solenoid valve.
[0019] Furthermore, four support piles are fixedly connected to the bottom surface of the mixing tank body, and a protective pad is fixedly connected to the bottom end of each support pile.
[0020] The above scheme allows the device to be placed more stably on the contact surface by setting up support piles, which facilitates the stable mixing of concrete mortar.
[0021] Furthermore, a controller is fixedly connected to the outer surface of the mixing tank body, and the servo motor is electrically connected to the controller.
[0022] The above solution allows for convenient control of the servo motor's speed via a controller, enabling more uniform mixing of the concrete mortar.
[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects: This concrete mortar mixing device, through its specially designed drive assembly, enables the sleeve and rotating rod to rotate in opposite directions. Combined with the synergistic effect of the main and auxiliary spiral blades, it forms a highly efficient counter-current shear force field, effectively improving the mixing efficiency of the concrete mortar. Simultaneously, the scraper frame, equipped with a scraper brush, eliminates the stagnant layer on the inner wall of the mixing tank during rotation, achieving uniform mixing throughout the entire area. The scraper frame's rotation also drives the cross-distributed mixing rods to rotate. Since the mixing rods rotate in the opposite direction to the main spiral blades, the concrete mortar is gradually decomposed into fine particles under shear force until it is completely dissolved and fused, making it more practical. The servo motor and controller form a closed-loop control system, allowing for real-time adjustment of the speed parameters to optimize the actual mixing effect. Attached Figure Description
[0024] Figure 1This is a schematic diagram of the overall front view of the structure of this application; Figure 2 This is a first partial sectional view of the structure of this application; Figure 3 For the structure of this application Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of a second partial cross-sectional structure of the present application; Figure 5 This is a partial bottom view of the structure of this application.
[0025] In the picture: 1. Mixing tank body; 2. Mixing assembly; 201. Sleeve; 202. Rotating rod; 203. Connecting sleeve; 204. Sealed bearing; 205. Main spiral blade; 206. Scraper frame; 207. Scraper brush; 208. Mixing rod; 209. Auxiliary spiral blade; 3. Drive assembly; 301. Servo motor; 302. Active bevel gear; 303. First driven bevel gear; 304. Reinforcing frame; 305. Second driven bevel gear; 4. Feed port; 5. Discharge port; 6. Solenoid valve; 7. Support pile; 8. Controller. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] Please see Figure 1 , Figure 2 and Figure 3This embodiment of a concrete mortar mixing device includes a mixing tank body 1 and a mixing assembly 2. The mixing assembly 2 includes a sleeve 201 rotatably fitted on the top of the mixing tank body 1 and a rotating rod 202 rotatably fitted on the inner wall of the sleeve 201. A connecting sleeve 203 is fixedly connected to the top of the rotating rod 202, and a sealing bearing 204 is fixedly connected to the inner wall of the connecting sleeve 203. The inner wall of the sealing bearing 204 is fixedly connected to the outer surface of the sleeve 201. A driving assembly 3 is provided on the top of the sleeve 201. The driving assembly 3 includes a servo motor 301 fixedly connected to the top of the mixing tank body 1. A drive bevel gear 302 is fixedly connected to the output shaft end of the servo motor 301. When the servo motor 301 is started, it drives the drive bevel gear 302 to rotate. A first driven bevel gear 303 is fixedly connected to the top of the sleeve 201. A second driven bevel gear 305 is fixedly connected to the top of the rotating rod 202. Both the first driven bevel gear 303 and the second driven bevel gear 305 mesh with the driving bevel gear 302. When the driving bevel gear 302 rotates, it will simultaneously drive the first driven bevel gear 303 and the second driven bevel gear 305 to rotate. The first driven bevel gear 303 and the second driven bevel gear 305 rotate in opposite directions, so that the sleeve 201 and the rotating rod 202 rotate in opposite directions. A reinforcing frame 304 is fixedly connected to the top of the mixing tank body 1. The top of the rotating rod 202 is rotatably sleeved inside the reinforcing frame 304. The reinforcing frame 304 can improve the stability of the rotating rod 202, so that the rotating rod 202 can rotate more smoothly, which is beneficial to the full mixing of concrete mortar.
[0028] Please see Figure 3 , Figure 4 and Figure 5The bottom of the rotating rod 202 is fixedly connected to a main spiral blade 205, and the bottom of the sleeve 201 is fixedly connected to a scraper frame 206. The main spiral blade 205 is located inside the scraper frame 206. The shape of the scraper frame 206 is adapted to the shape of the inner wall of the mixing tank body 1. The outer surface of the scraper frame 206 is fixedly connected to evenly distributed scraper brushes 207. Multiple scraper brushes 207 are adapted to the inner wall of the mixing tank body 1. When the scraper frame 206 rotates, the scraper brushes 207 can scrape off the raw materials adhering to the inner wall of the mixing tank body 1, so that the raw materials inside the mixing tank body 1 can be fully mixed. Multiple stirring rods 208 are fixedly connected to the inner wall of the scraper frame 206. Multiple stirring rods 208 inside the main spiral blade 205 are arranged in a crisscross pattern outside the main spiral blade 205, defining the relationship between the stirring rods 208 and the main spiral blade 205. This enhances the countercurrent shearing effect generated when the main spiral blade 205 and the stirring rods 208 rotate in opposite directions, which is beneficial for the rapid mixing of concrete mortar. An auxiliary spiral blade 209 is fixedly connected to the bottom of the scraper frame 206. The auxiliary spiral blade 209 has the same thread direction as the main spiral blade 205. Since the auxiliary spiral blade 209 has the same thread direction as the main spiral blade 205, a highly efficient countercurrent shearing force field can be formed when the main spiral blade 205 and the auxiliary spiral blade 209 rotate in opposite directions, thereby improving the mixing efficiency.
[0029] Please see Figure 1 , Figure 2 and Figure 3 The mixing tank body 1 has two symmetrical feeding ports 4 on its top and a discharge port 5 on its bottom. A solenoid valve 6 is installed on the pipe section of the discharge port 5. The feeding ports 4 allow for easy addition of concrete mortar raw materials to be mixed into the mixing tank body 1. The discharge port 5 and the solenoid valve 6 allow for easy discharge of the fully mixed concrete mortar from the mixing tank body 1. Four support piles 7 are fixedly connected to the bottom surface of the mixing tank body 1. Each support pile 7 has a protective pad fixedly connected to its bottom end. The support piles 7 allow the device to be placed more stably on the contact surface, facilitating stable mixing of the concrete mortar. A controller 8 is fixedly connected to the outer surface of the mixing tank body 1. A servo motor 301 is electrically connected to the controller 8. The controller 8 allows for easy control of the rotation speed of the servo motor 301, thereby enabling more uniform mixing of the concrete mortar.
[0030] In this embodiment, a concrete mortar mixing device, through the configured drive component 3, enables the sleeve 201 and the rotating rod 202 to rotate in opposite directions. Combined with the synergistic effect of the main spiral blade 205 and the auxiliary spiral blade 209, a highly efficient counter-current shear force field is formed, which effectively improves the mixing efficiency of the concrete mortar. At the same time, the scraper frame 206 is equipped with a scraper brush 207, which can eliminate the stagnant layer on the inner wall of the mixing tank body 1 when rotating, achieving uniform mixing throughout the entire area. When the scraper frame 206 rotates, it can also drive the cross-distributed mixing rods 208 to rotate. The mixing rods 208 rotate in the opposite direction to the main spiral blades 205, which can cause the concrete mortar to be gradually decomposed into fine particles under shear force until it is completely dissolved and fused, making it more practical. The servo motor 301 and the controller 8 form a closed-loop control system, which can adjust the speed parameters in real time, thereby optimizing the actual mixing effect.
[0031] The working principle of the above embodiment is as follows: the servo motor 301 drives the active bevel gear 302, which synchronously drives the first driven bevel gear 303 and the second driven bevel gear 305 to rotate in opposite directions, forming a reverse transmission structure. This allows the rotating rod 202 and the sleeve 201 to rotate in opposite directions. The rotating rod 202 drives the main spiral blade 205 to generate axial vortices, and the sleeve 201 drives the scraping frame 206 and the scraping brush 207 to move along the inner wall of the mixing tank body 1, achieving comprehensive, dead-angle-free scraping, reducing the probability of material adhering to the inner wall of the mixing tank body 1, thereby optimizing the mixing effect. The multiple mixing rods 208 and the main spiral blades 205 are arranged in a cross-distribution design, which can improve the shearing effect on concrete mortar. Together with the auxiliary spiral blades 209, they generate multi-directional shear force and form a chaotic mixing effect in three-dimensional space, thereby improving the mixing efficiency of concrete mortar. The speed of the servo motor 301 can be adjusted in real time by the controller 8 to precisely control the flow field intensity, so that mortars with different proportions can reach the optimal mixing state. This equipment breaks through the mixing efficiency bottleneck of traditional mixing equipment, shortens the mixing time, and ensures the uniformity and quality stability of concrete mortar.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0033] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A concrete mortar mixing device, comprising a mixing tank body (1) and a mixing assembly (2), characterized in that: The stirring assembly (2) includes a sleeve (201) rotatably fitted on the top of the stirring tank body (1) and a rotating rod (202) rotatably fitted on the inner wall of the sleeve (201). A connecting sleeve (203) is fixedly connected to the top of the rotating rod (202). A sealing bearing (204) is fixedly connected to the inner wall of the connecting sleeve (203). The inner wall of the sealing bearing (204) is fixedly connected to the outer surface of the sleeve (201). A driving assembly (3) is provided on the top of the sleeve (201). The bottom of the rotating rod (202) is fixedly connected to a main spiral blade (205), the bottom of the sleeve (201) is fixedly connected to a scraper frame (206), the main spiral blade (205) is located inside the scraper frame (206), the shape of the scraper frame (206) is adapted to the shape of the inner wall of the mixing tank body (1), the outer surface of the scraper frame (206) is fixedly connected to a uniformly distributed scraper brush (207), the inner wall of the scraper frame (206) is fixedly connected to a plurality of stirring rods (208), and the bottom of the scraper frame (206) is fixedly connected to an auxiliary spiral blade (209).
2. The concrete mortar mixing device according to claim 1, characterized in that: Multiple stirring rods (208) inside the scraper frame (206) are crisscrossed outside the main spiral blade (205). The auxiliary spiral blade (209) has the same thread direction as the main spiral blade (205). Multiple scraper brushes (207) are adapted to the inner wall of the mixing tank body (1).
3. The concrete mortar mixing device according to claim 1, characterized in that: The drive assembly (3) includes a servo motor (301) fixedly connected to the top of the mixing tank body (1), and an active bevel gear (302) is fixedly connected to the output shaft end of the servo motor (301).
4. A concrete mortar mixing device according to claim 3, characterized in that: The top of the sleeve (201) is fixedly connected to a first driven bevel gear (303), and the top of the rotating rod (202) is fixedly connected to a second driven bevel gear (305). Both the first driven bevel gear (303) and the second driven bevel gear (305) mesh with the driving bevel gear (302).
5. A concrete mortar mixing device according to claim 1, characterized in that: The top of the mixing tank body (1) is fixedly connected to a reinforcing frame (304), and the top end of the rotating rod (202) is rotatably sleeved inside the reinforcing frame (304).
6. A concrete mortar mixing device according to claim 1, characterized in that: The top of the mixing tank body (1) is equipped with two symmetrical feeding ports (4), and the bottom of the mixing tank body (1) is equipped with a discharge port (5). A solenoid valve (6) is installed on the pipe section of the discharge port (5).
7. A concrete mortar mixing device according to claim 1, characterized in that: The bottom surface of the mixing tank body (1) is fixedly connected with four support piles (7), and the bottom end of each support pile (7) is fixedly connected with a protective pad.
8. A concrete mortar mixing device according to claim 3, characterized in that: The outer surface of the mixing tank body (1) is fixedly connected to a controller (8), and the servo motor (301) is electrically connected to the controller (8).