Concrete stirring device
By introducing rotary stirring, vibration stirring and flip mixing mechanisms into the concrete mixing device, the problem of blind spots and single stirring methods is solved, and a more efficient concrete mixing effect is achieved.
Patent Information
- Application Number
- CN202420947225.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The existing concrete mixing device has the problem of blind mixing areas and single mixing methods, which leads to insufficient concrete mixing.
A concrete mixing device including a rotary mixing mechanism, a vibration mixing mechanism and a turn-over mixing mechanism is designed. The mixing blade and scraper are driven by the rotating shaft for preliminary stirring. The vibration plate and the bumps are vibrated, and the scraper flips the concrete at the bottom of the mixing drum, which is effective. Reduce the stirring blind spot and improve the stirring efficiency.
It effectively reduces the mixing blind spots of concrete in the mixing drum, improves the mixing efficiency and effect, and ensures that the concrete is fully mixed.
Smart Images
Figure CN222223059U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of concrete mixing equipment, in particular to a concrete mixing device. Background Art
[0002] A concrete mixer is a machine that mixes cement, sand and gravel aggregates and water to make a concrete mixture. It is also an indispensable tool in the field of house construction, bringing great convenience to the construction process.
[0003] At present, concrete mixing devices basically use the rotating mixing drum to mix concrete or use a mixing paddle to mix concrete. However, when mixing concrete with a mixing paddle, there will be a mixing blind spot due to the fixed mixing paddle blades, and there is only a single stirring method, which will lead to insufficient mixing of the concrete.
[0004] The Chinese utility model patent with application number CN202122630537.4 discloses a concrete mixing system, including a plurality of evenly distributed stirring blades fixedly provided on the shaft wall of the stirring shaft, an arc-shaped scraper provided at the bottom of the tank body, a rotating shaft fixedly provided at both ends of the arc-shaped scraper, and the ends of the rotating shaft rotatably arranged on both sides of the tank body, one end of the rotating shaft extends to the outside of the tank body and is provided with a reciprocating drive mechanism. This solution can solve the problem of blind spots in concrete mixing to a certain extent, but due to the gap between the stirring blades and the tank body, and the single mixing method, the mixing effect is not ideal. Utility Model Content
[0005] The utility model aims to solve the problems of insufficient concrete mixing caused by blind mixing areas and a single mixing method in concrete mixing by providing a concrete mixing device in view of the deficiencies in the above-mentioned technologies.
[0006] The utility model provides a concrete mixing device, including a mixing drum, a feed port and a discharge port, wherein the feed port and the discharge port are respectively arranged at two ends of the mixing drum, a rotating shaft is arranged in the axial direction of the mixing drum, a mixing tank is fixedly connected to the inner wall of the mixing drum, a rotating mixing mechanism for preliminary mixing of concrete is arranged in the mixing tank, and the rotating mixing mechanism is fixedly connected to the rotating shaft, a vibration mixing mechanism and a flipping mixing mechanism for fine mixing of concrete are arranged on one side of the mixing drum close to the discharge port, the flipping mixing mechanism is elastically connected to the rotating shaft, and a mixing part of the vibration mixing mechanism is elastically connected to the rotating shaft. Concrete is preliminarily mixed by arranging a material receiving mechanism and a rotating mixing mechanism, and concrete is further stirred by arranging a vibration mixing mechanism and a flipping mixing mechanism, and the concrete is concentrated at the bottom of the mixing drum, and the mixing by the vibration mixing mechanism and the flipping mixing mechanism effectively reduces the mixing blind area, and improves the mixing efficiency and effect.
[0007] Preferably, a material leakage port is provided on the side wall of the stirring tank, and the bottom wall of the stirring tank is inclined from the rotating shaft side to the material leakage port side.
[0008] Preferably, the rotary stirring mechanism includes stirring blades, a plurality of connecting rods and scrapers, one end of the connecting rod is fixedly connected to the rotating shaft, the other end of the connecting rod is fixedly connected to the stirring blade, the scraper is fixedly connected to the rotating shaft, and the scraper is in contact with the bottom wall of the stirring tank. The stirring blades are provided to stir the concrete falling into the material receiving mechanism, thereby effectively reducing the accumulation of concrete raw materials.
[0009] Preferably, the vibration stirring mechanism comprises a fixed ring, a protrusion and a vibration plate, the fixed ring is fixedly connected to the inner wall of the mixing drum, the protrusion is fixedly connected to the side of the fixed ring close to the discharge port, the vibration plate is elastically connected to the rotating shaft, and the side of the vibration plate away from the discharge port is in contact with the protrusion. The surface of the vibration plate in contact with the protrusion is an arc surface, and the vertical cross-section of the vibration plate is conical. By setting up the vibration stirring mechanism to break up the concrete at the bottom of the mixing drum, the resistance of the turning stirring mechanism is reduced, and the scaled concrete is effectively broken up.
[0010] Preferably, the turning and stirring mechanism includes a scraper, a support rod, a slot, a spring, a side strip and a baffle, the support rod is fixedly connected to the rotating shaft, one side of the scraper is rotatably connected to the support rod, the side of the scraper corresponding to the rotating shaft is fixedly connected to the side strip, the slot is provided on the rotating shaft, the spring is placed in the slot, one end of the spring is fixedly connected to the side strip, the other end of the spring is fixedly connected to the inner wall of the slot, the baffle is arranged on both sides of the side strip, and the baffle slides in the slot. A corrugated sheet is arranged at the slot opening of the slot.
[0011] Preferably, a motor is arranged outside the mixing drum, the output end of the motor is fixedly connected to one end of the rotating shaft, and a protective cover for protecting the motor is arranged outside the motor, and the protective cover is fixedly connected to the mixing drum.
[0012] Preferably, a movable plate is hinged on the upper edge of the material leakage port, and the movable plate and the material leakage port are connected via a torsion spring.
[0013] Compared with the prior art, it has the following beneficial effects:
[0014] The utility model provides a concrete mixing device, which drives the mixing blade to rotate by setting a rotating shaft, performs preliminary mixing on the concrete falling into the mixing tank, and pushes the concrete out from the material leakage port by a scraper. After the concrete falls to the bottom of the mixing drum, the friction between the vibration plate and the convex blocks on the fixed ring generates vibration to break up and mix the concrete, and the scraper turns over the concrete at the bottom of the mixing drum to achieve further mixing. The above technical scheme is adopted to effectively reduce the mixing blind area of the concrete in the mixing drum, and effectively improve the mixing efficiency and mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0016] Figure 1 This is a schematic diagram of a concrete mixing device of the utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of a concrete mixing device of the utility model;
[0018] Figure 3 This is a schematic diagram of the stirring tank and the material leakage port of the utility model;
[0019] Figure 4 This is a schematic diagram of the rotary stirring mechanism of the utility model;
[0020] Figure 5 This is a schematic diagram of the vibration stirring mechanism of the utility model;
[0021] Figure 6 This is a schematic diagram of the spring and slot of the utility model;
[0022] Figure 7 This is a schematic diagram of the turning and stirring mechanism of the utility model;
[0023] Figure 8 This is a cross-sectional view of the turning and stirring mechanism of the utility model.
[0024] In the figure, there are mixing drum 1, feeding port 11, discharging port 12, rotating shaft 2, mixing tank 31, leakage port 32, movable plate 33, rotating mixing mechanism 4, mixing blade 41, connecting rod 42, scraper 43, vibrating mixing mechanism 5, fixing ring 51, protrusion 52, vibrating plate 53, flipping mixing mechanism 6, scraper 61, supporting rod 62, slot 63, spring 64, side strip 65, baffle 66, corrugated sheet 67, motor 7 and protective cover 8. DETAILED DESCRIPTION
[0025] In order to make it easier to understand the structure of the present invention and the functional features and advantages that can be achieved, the preferred embodiments of the present invention are described in detail with reference to the drawings as follows:
[0026] Example:
[0027] like Figures 1 to 8As shown, the utility model provides a concrete mixing device, including a mixing drum 1, a feed port 11 and a discharge port 12, wherein the feed port 11 and the discharge port 12 are respectively arranged at two ends of the mixing drum 1, and a baffle 66 is arranged at the discharge port 12. When the concrete is evenly mixed, the baffle 66 is opened and discharged from the discharge port 12. The mixing drum 1 can be placed vertically or tilted, and the vertical placement has a better effect. A rotating shaft 2 is arranged in the axial direction of the mixing drum 1, and the center of the mixing drum 1 is the same as the center of the rotating shaft 2. A mixing tank 31 is fixedly connected in the mixing drum 1, and the diameter of the mixing tank 31 is smaller than the diameter of the mixing drum 1 and the mixing tank 31 is located below the feed port 11, and can receive the materials fed by the feed port 11. A rotating stirring mechanism 4 for preliminarily mixing concrete is arranged in the mixing tank 31, and the rotating stirring mechanism 4 is fixedly connected to the rotating shaft 2. During the mixing process, the rotating stirring mechanism 4 preliminarily mixes the mud and sand and pushes the mud and sand and other materials out of the mixing tank 31 and falls into the bottom of the mixing drum 1. A vibration stirring mechanism 5 and a flip stirring mechanism 6 for finely mixing concrete are arranged on one side of the mixing drum 1 close to the discharge port 12. The flip stirring mechanism 6 is elastically connected to the rotating shaft 2, and the stirring part of the vibration stirring mechanism 5 is elastically connected to the rotating shaft 2. The elastic connection here can be that the stirring part of the vibration stirring mechanism 5 is slidably arranged and elastic parts such as springs are installed on the rotating shaft 2.
[0028] As another example, Figures 2 to 4 As shown, the side wall of the stirring tank 31 of the present application is provided with a material leakage port 32, and the material leakage port 32 leaks the material from the stirring tank 31. In order to prevent the material from leaking out of the stirring tank 31 without stirring, a movable plate 33 is hinged on the upper edge of the material leakage port 32, and the movable plate 33 is connected to the material leakage port 32 by a torsion spring. The bottom wall of the stirring tank 31 is inclined from the side of the rotating shaft 2 to the side of the material leakage port 32, so that after the material enters the stirring tank 31, it has a potential energy to slide toward the material leakage port 32. The rotating stirring mechanism 4 includes a stirring blade 41, a plurality of connecting rods 42 and a scraper 43. One end of the connecting rod 42 is fixedly connected to the rotating shaft 2, and the other end of the connecting rod 42 is fixedly connected to the stirring blade 41. The length of each connecting rod 42 is different. Compared with the same length, the different lengths of the connecting rods 42 can stir a wider range of mud and sand materials, effectively improving the stirring efficiency. The scraper 43 is fixedly connected to the rotating shaft 2, and one side of the scraper 43 contacts the bottom wall of the stirring tank 31. The scraper 43 is arc-shaped and the arc-shaped protrusion is in the rotation direction of the scraper 43, which is conducive to pushing materials such as mud and sand to the leakage port 32, and as the mud and sand materials accumulate, the movable plate 33 is squeezed open to allow the materials to leak down.
[0029] As another example, Figure 2 and Figure 5As shown, the vibration stirring mechanism 5 of the present application includes a fixed ring 51, a protrusion 52 and a vibration plate 53. The fixed ring 51 is fixedly connected to the inner wall of the mixing drum 1, and the protrusion 52 is fixedly connected to the side of the fixed ring 51 close to the discharge port 12, and a plurality of protrusions 52 are evenly arranged below the fixed ring 51. The upper surface of the fixed ring 51 is inclined to reduce the probability of concrete accumulation and solidification on the fixed ring 51. The vibration plate 53 is elastically connected to the rotating shaft 2. The connection between the vibration plate 53 and the rotating shaft 2 is slidably connected and is provided with elastic parts such as springs, and the side of the vibration plate 53 away from the discharge port 12 is in contact with the protrusion 52. The vibration plate 53 stretches and vibrates up and down during the process of abutting against the protrusion 52. The surface of the vibration plate 53 in contact with the protrusion 52 is an arc surface, and the vertical section of the vibration plate 53 is conical. That is, the position where the vibration plate 53 contacts the bottom of the mixing drum 1 is sharper than the upper part of the vibration plate 53, mainly to be able to better insert into the concrete to loosen the concrete, and the tip of the vibration plate 53 is in a certain arc shape, which effectively prevents the sharp edge from being damaged when encountering stones and other materials. The principle of vibrating by the above-mentioned vibration method is similar to the principle of using the end of a shovel to reciprocately insert and pull the concrete to achieve uniform mixing of the concrete material when manually mixing concrete.
[0030] As another example, Figures 6 to 8As shown, the tumbling stirring mechanism 6 of the present application includes a scraper 61, a support rod 62, a slot 63, a spring 64, a side strip 65 and a baffle 66. The support rod 62 is fixedly connected to the rotating shaft 2. One side of the scraper 61 is rotatably connected to the support rod 62. Here, the rotatable connection adopts a hinged manner, or the support rod 62 can also be rotatably connected to the rotating shaft 2, and the scraper 61 is fixed to the support rod 62. The scraper 61 is fixedly connected to the side strip 65 on the side corresponding to the rotating shaft 2. The side strip 65 and the support rod 62 both play a role in supporting and fixing the scraper 61. The slot 63 is opened on the rotating shaft 2, and the spring 64 is placed in the slot 63. One end of the spring 64 is fixedly connected to the side strip 65, and the other end of the spring 64 is fixedly connected to the inner wall of the slot 63. The baffle 66 is arranged on both sides of the side strip 65, and the baffle 66 slides in the slot 63. The baffle 66 effectively prevents concrete from entering the slot 63, and solidifies in the slot 63, resulting in the inability to realize elastic movement. However, the operation can continue even if the elastic movement cannot be realized, because the concrete at the bottom of the mixing drum 1 is scraped up mainly by the rotation of the scraper 61. Since the scraper 61 is tilted, the concrete is further mixed in the process of being shoveled up and falling. The spring 64 is mainly set to adjust the angle of the scraper 61 according to the weight of the concrete on the scraper 61, reduce the resistance during the rotation of the scraper 61, and stir more effectively. When the scraper 61 is changed in inclination angle by the pressure of the concrete, the concrete at the bottom of the mixing drum 1 may not be scraped up. Therefore, it is necessary to fit the support rod 62 with the bottom wall of the mixing drum 1, and the side of the support rod 62 that contacts the bottom wall has an edge. A corrugated sheet 67 is set at the notch of the slot 63, and the corrugated sheet 67 is fixed to the notch of the slot 63, connected to the notch by rivets and super glue, and the corrugated sheet 67 can be extended and retracted during the sliding process of the baffle 66 and the edge strip 65. Since the slot 63 is an arc-shaped slot 63 arranged along the inclination angle of the scraper 43 , the shaft 2 can be a square shaft 2 or a shaft 2 with a transition from an upper circle to a lower circle to adapt to the slot 63 .
[0031] As another example, Figure 1 and Figure 2 As shown, the present application has a motor 7 disposed outside the mixing drum 1, and the output end of the motor 7 is fixedly connected to one end of the rotating shaft 2, and can be located on the side of the feed port 11 or the side of the discharge port 12. In this solution, the motor 7 is disposed on the side of the feed port 11. A protective cover 8 for protecting the motor 7 is disposed outside the motor 7, and the protective cover 8 is fixedly connected to the mixing drum 1. The protective cover 8 has an inspection port, and the inspection port can be locked during normal use.
[0032] The working principle of a concrete mixing device of the present application is as follows: concrete material enters from the feed port 11 and falls into the mixing tank 31, the motor 7 drives the rotating shaft 2 to rotate, and the stirring blade 41 on the rotating shaft 2 rotates to stir the material in the mixing tank 31, and the arc-shaped scraper 43 fixed on the rotating shaft 2 and the inclination of the mixing tank 31 itself discharge the material from the mixing tank 31 through the leakage port 32, and the material falls into the bottom of the mixing drum 1 after being discharged, and the vibration plate 53 rubs against the bump 52 on the fixed ring 51 during the rotation process to generate up and down telescopic vibration, so as to break up and mix the concrete material, and the scraper 61 is provided with a spring 64 in the slot 63 of the rotating shaft 2 during the rotation process, and the inclination angle of the scraper 61 becomes smaller when it is squeezed by the concrete material, reducing the resistance, and scooping up the concrete material at the bottom of the mixing drum 1, and the concrete material is further mixed in the process of being scooped up and falling. After stirring, it is discharged from the discharge port 12. After preliminary mixing by the stirring blade 41, the vibration plate 53 and the scraper 61 vibrate and stir the concrete, thereby improving the mixing efficiency and effect of the concrete, and the concrete is concentrated at the bottom of the mixing drum 1. During the rotation of the vibration plate 53 and the scraper 61, the mixing blind area is effectively reduced.
[0033] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.
Claims
1. A concrete mixing device, characterized in that , comprising a mixing drum (1), a feed port (11) and a discharge port (12), wherein the feed port (11) and the discharge port (12) are respectively arranged at two ends of the mixing drum (1), a rotating shaft (2) is arranged in the mixing drum (1) along the axial direction, a mixing tank (31) is fixedly connected to the inner wall of the mixing drum (1), a rotating stirring mechanism (4) for preliminary mixing of concrete is arranged in the mixing tank (31), and the rotating stirring mechanism (4) is fixedly connected to the rotating shaft (2), a vibrating stirring mechanism (5) and a flipping stirring mechanism (6) for fine mixing of concrete are arranged on one side of the mixing drum (1) close to the discharge port (12), the flipping stirring mechanism (6) is elastically connected to the rotating shaft (2), and the stirring part of the vibrating stirring mechanism (5) is elastically connected to the rotating shaft (2).
2. A concrete mixing device according to claim 1, characterized in that: A material leakage port (32) is provided on the side wall of the stirring tank (31), and the bottom wall of the stirring tank (31) is inclined from the side of the rotating shaft (2) to the side of the material leakage port (32).
3. A concrete mixing device according to claim 2, characterized in that: The rotary stirring mechanism (4) comprises a stirring blade (41), a connecting rod (42) and a scraper (43); one end of the connecting rod (42) is fixedly connected to the rotating shaft (2); the other end of the connecting rod (42) is fixedly connected to the stirring blade (41); the scraper (43) is fixedly connected to the rotating shaft (2), and the scraper (43) contacts the bottom wall of the stirring tank (31).
4. A concrete mixing device according to claim 3, characterized in that: The vibration stirring mechanism (5) comprises a fixing ring (51), a protrusion (52) and a vibration plate (53), wherein the fixing ring (51) is fixedly connected to the inner wall of the stirring drum (1), the protrusion (52) is fixedly connected to a side of the fixing ring (51) close to the discharge port (12), the vibration plate (53) is elastically connected to the rotating shaft (2), and a side of the vibration plate (53) away from the discharge port (12) contacts the protrusion (52).
5. A concrete mixing device according to claim 4, characterized in that: The tumbling and stirring mechanism (6) comprises a scraper (61), a support rod (62), a slot (63), a spring (64), a side strip (65) and a baffle (66); the support rod (62) is fixedly connected to the rotating shaft (2); one side of the scraper (61) is rotatably connected to the support rod (62); the scraper (61) is fixedly connected to the side strip (65) at a side corresponding to the rotating shaft (2); the slot (63) is provided on the rotating shaft (2); the spring (64) is disposed in the slot (63); one end of the spring (64) is fixedly connected to the side strip (65); the other end of the spring (64) is fixedly connected to the inner wall of the slot (63); the baffle (66) is disposed on both sides of the side strip (65), and the baffle (66) slides in the slot (63).
6. A concrete mixing device according to claim 5, characterized in that: A corrugated sheet (67) is provided at the notch of the slot (63).
7. A concrete mixing device according to claim 4, characterized in that: The surface of the vibration plate (53) in contact with the protrusion (52) is an arc surface, and the vertical cross section of the vibration plate (53) is conical.
8. A concrete mixing device according to claim 7, characterized in that: A motor (7) is arranged outside the mixing drum (1), the output end of the motor (7) is fixedly connected to one end of the rotating shaft (2), and a protective cover (8) for protecting the motor (7) is arranged outside the motor (7), and the protective cover (8) is fixedly connected to the mixing drum (1).
9. A concrete mixing device according to claim 2, characterized in that: A movable plate (33) is hinged on the upper edge of the material leakage port (32), and the movable plate (33) is connected to the material leakage port (32) via a torsion spring.