Double-shaft concrete stirring device

The design of the dual-shaft mixing device enables multi-directional mixing and coordination with auxiliary components, solving the problem of uneven mixing in existing devices and improving the mixing effect and quality of concrete.

CN224224183UActive Publication Date: 2026-05-12KUNMING HUANJUN VALVE MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNMING HUANJUN VALVE MANUFACTURING CO LTD
Filing Date
2025-03-26
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing concrete mixing equipment can only mix from one direction, resulting in uneven concrete mixing and failing to meet the requirements for high-quality mixing.

Method used

The device employs a dual-shaft mixing system, where a central gear meshes with peripheral gears to drive multiple sets of auger paddles to rotate in opposite directions, mixing from multiple directions. At the same time, auxiliary components such as conical mixing paddles and guide channels are used in conjunction to ensure uniform mixing of materials.

Benefits of technology

It improves the mixing efficiency and quality of concrete, avoids material sedimentation and splashing, increases the mixing range, and ensures uniform material distribution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of concrete manufacturing, and discloses a double-shaft concrete stirring device which comprises a base, a hydraulic device is fixedly installed on the base, a top plate is fixedly installed at the piston end of the hydraulic device, a material storage barrel is installed on the base in a clamped mode, and the top plate is fixedly installed on the material storage barrel. And a handle is fixedly mounted on the storage barrel. According to the double-shaft concrete stirring device, in order to ensure that concrete is fully and uniformly mixed, the stirring assembly is arranged and matched with the motor to drive the connecting rod to rotate and drive the center gear to rotate, the center gear is meshed with the multiple sets of peripheral gears, and the peripheral gears are meshed with teeth on the inner side of the cover; according to the transmission structure, the multiple sets of peripheral gears rotate synchronously, the peripheral gears drive the straight rods to rotate, the auger paddles on the multiple sets of straight rods rotate along with the straight rods, the rotation directions of the auger paddles are opposite, concrete can be stirred in multiple directions, the stirring range is expanded, and the stirring efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of concrete manufacturing technology, specifically a twin-shaft concrete mixing device. Background Technology

[0002] Concrete mixing equipment is mainly used to uniformly mix raw materials such as cement, aggregates (sand, stone), water and additives to produce concrete that meets specific requirements. Its function is to ensure that the concrete components are evenly distributed and to improve the physical properties and durability of the concrete.

[0003] Concrete mixing equipment typically consists of a mixing drum, a drive system, a feeding and discharging mechanism, and a control system. During operation, raw materials are fed into the mixing drum in proportion. After the drive system is started, the mixing drum begins to rotate, and the raw materials are forcibly mixed by the internal mixing blades until they are evenly mixed. The operation process is simple, and the control system can achieve automated control, thereby improving the mixing accuracy and efficiency.

[0004] However, in actual use, most existing mixing devices adopt a single mixing method, which can only mix concrete locally and cannot mix it comprehensively from multiple directions and angles, resulting in uneven concrete mixing. In view of this, we propose a dual-shaft concrete mixing device. Utility Model Content

[0005] The purpose of this invention is to provide a twin-shaft concrete mixing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A dual-shaft concrete mixing device includes a base, a hydraulic device fixedly mounted on the base, a top plate fixedly mounted on the piston end of the hydraulic device, a storage hopper snapped onto the base, a handle fixedly mounted on the storage hopper, and a mixing assembly disposed on the top plate. The mixing assembly includes:

[0008] The motor is fixedly installed above the top plate, and one end of a spring rod is fixedly installed below the top plate. The other end of the spring rod is fixedly installed to one end of the cover.

[0009] The cover has teeth fixedly installed on its inner side, the motor output end has a connecting rod fixedly installed, a central gear is fixedly installed on the connecting rod, and a connecting plate is attached to the connecting rod.

[0010] The peripheral gears are rotatably mounted on both ends of the connecting plate. A straight rod is fixedly mounted at the center point of the peripheral gears, and an auger propeller is fixedly mounted on the straight rod. An isolation plate is rotatably mounted on the other end of the cover.

[0011] Preferably, the teeth, peripheral gears, straight rods, and auger propellers are provided in multiple sets.

[0012] Preferably, the central gear meshes with multiple sets of peripheral gears, the multiple sets of peripheral gears mesh with multiple sets of teeth, the multiple sets of auger propellers rotate in opposite directions, and the multiple sets of straight rods penetrate the isolation plate.

[0013] Preferably, the storage tank is provided with an auxiliary component, the auxiliary component including a conical rod, a conical stirring paddle fixedly installed on the conical rod, an annular cover fixedly installed on the inner side of the storage tank, the annular cover having an opening and a guide groove.

[0014] Preferably, multiple sets of the conical rod, conical stirring paddle, opening, and guide groove are provided.

[0015] Preferably, the annular cover is made of rubber, the annular cover is concave towards the center, and multiple sets of the guide grooves are disposed at the bottom of the annular cover.

[0016] Compared with the prior art, the present invention provides a twin-shaft concrete mixing device, which has the following beneficial effects:

[0017] 1. This dual-shaft concrete mixing device, in order to ensure that the concrete is fully and uniformly mixed, is equipped with a mixing component. This component works in conjunction with a motor to drive the connecting rod to rotate, which in turn drives the central gear to rotate. The central gear meshes with multiple sets of peripheral gears, which in turn mesh with the teeth on the inside of the cover. This transmission structure allows multiple sets of peripheral gears to rotate synchronously. The peripheral gears drive the straight rod to rotate, and the auger paddles on the multiple sets of straight rods rotate accordingly. The auger paddles rotate in opposite directions, which can mix the concrete from multiple directions, increase the mixing range, and improve the mixing efficiency.

[0018] 2. To improve the mixing quality of this twin-shaft concrete mixing device, auxiliary components are incorporated. These components, in conjunction with an annular shroud, further prevent material splashing and guide the material back into the storage tank via a flow guide. The conical agitator on the conical rod rotates synchronously with the mixing assembly during operation, agitating the material at the edge and bottom of the storage tank to prevent sedimentation. The openings on the annular shroud allow material to circulate during mixing. The conical agitator works in conjunction with the auger in the mixing assembly to mix the concrete from different angles and positions, further refining the mixing process. Attached Figure Description

[0019] Figure 1 This is a top view of the overall closed structure of this utility model;

[0020] Figure 2 This is a top view of the overall structure of this utility model when it is raised;

[0021] Figure 3 This is a side sectional view of the structure of this utility model;

[0022] Figure 4 This is a bottom sectional view of part of the structure of this utility model;

[0023] Figure 5 This is a top sectional view of part of the structure of this utility model.

[0024] In the diagram: 1. Base; 2. Hydraulic device; 3. Top plate; 4. Storage tank; 5. Handle; 6. Mixing assembly; 61. Motor; 62. Spring rod; 63. Cover; 64. Gear; 65. Connecting rod; 66. Central gear; 67. Connecting plate; 68. Peripheral gear; 69. Straight rod; 610. Screwdriver; 611. Isolation plate; 7. Auxiliary assembly; 71. Conical rod; 72. Conical mixing paddle; 73. Annular cover; 74. Opening; 75. Guide channel. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0027] Please see Figure 1 - Figure 5 This utility model provides a technical solution:

[0028] A dual-shaft concrete mixing device includes a base 1, a hydraulic device 2 fixedly installed on the base 1, a top plate 3 fixedly installed on the piston end of the hydraulic device 2, a storage tank 4 snapped onto the base 1, and a handle 5 fixedly installed on the storage tank 4.

[0029] In one embodiment of this utility model, a stirring assembly 6 is provided on the top plate 3. The stirring assembly 6 includes a motor 61. The motor 61 is fixedly installed above the top plate 3, and one end of a spring rod 62 is fixedly installed below the top plate 3. The other end of the spring rod 62 is fixedly installed on one end of a cover 63. A toothed tooth 64 is fixedly installed on the inner side of the cover 63. A connecting rod 65 is fixedly installed at the output end of the motor 61. A central gear 66 is fixedly installed on the connecting rod 65. A connecting plate 67 is attached to the connecting rod 65. The two ends of the connecting plate 67 are connected... A peripheral gear 68 is rotatably mounted, and a straight rod 69 is fixedly mounted at the center point of the peripheral gear 68. An auger paddle 610 is fixedly mounted on the straight rod 69. An isolation plate 611 is rotatably mounted on the other end of the cover 63. Multiple sets of teeth 64, peripheral gears 68, straight rods 69 and auger paddles 610 are provided. The central gear 66 meshes with multiple sets of peripheral gears 68. Multiple sets of peripheral gears 68 mesh with multiple sets of teeth 64. Multiple sets of auger paddles 610 rotate in opposite directions. Multiple sets of straight rods 69 pass through the isolation plate 611.

[0030] In this embodiment, the hydraulic device 2 on the base 1 serves as the lifting power source. When stirring is required, the piston end of the hydraulic device 2 extends, pushing the top plate 3 upward, thereby filling the storage tank 4 with the material to be stirred. After the material is added, the hydraulic device 2 is activated to lower the top plate 3, causing the cover 63 to align with the storage tank 4. This activates the motor 61 above the top plate 3. The output of the motor 61 drives the connecting rod 65 to rotate, causing the central gear 66 mounted on the connecting rod 65 to rotate accordingly. This allows the central gear 66 to mesh with multiple sets of peripheral gears 68. The rotation of the central gear 66 drives the multiple sets of peripheral gears 68 to rotate synchronously. Simultaneously, the straight rod 69 rotates along with the rotation of the peripheral gears 68, and the auger paddle 6 on the straight rod 69... As the mixing assembly 6 rotates, the multiple sets of auger paddles 610 rotate in opposite directions, allowing them to mix the concrete from multiple directions during rotation. One set of auger paddles 610 pushes the concrete upwards, while the other set of auger paddles 610, rotating in the opposite direction, pushes the concrete downwards, thereby increasing the mixing range, improving mixing efficiency, ensuring that the concrete is fully and evenly mixed, and improving the quality of the concrete. At the same time, the mixing assembly 6 will generate a certain amount of vibration during the mixing process. The spring rod 62 plays a certain buffering role, absorbing vibration energy and preventing the mixing device from being damaged due to excessive vibration. In addition, the isolation plate 611, together with the spring rod 611, prevents materials from entering the gear set, avoids materials from interfering with the normal meshing of the gears, and ensures the safety of the mixing process.

[0031] In one embodiment of this utility model, an auxiliary component 7 is provided on the storage tank 4. The auxiliary component 7 includes a conical rod 71, a conical stirring paddle 72 is fixedly installed on the conical rod 71, an annular cover 73 is fixedly installed on the inner side of the storage tank 4, an opening 74 is provided on the annular cover 73, and a guide groove 75 is provided on the annular cover 73. Multiple sets of conical rod 71, conical stirring paddle 72, opening 74 and guide groove 75 are provided. The annular cover 73 is made of rubber and is recessed towards the center. Multiple sets of guide grooves 75 are provided at the bottom of the annular cover 73.

[0032] In this embodiment, during the stirring process, the annular cover 73 further prevents material from splashing. At the same time, the multiple sets of guide grooves 75 at the bottom of the annular cover 73 can guide the material splashed onto the annular cover 73 back into the storage tank 4, avoiding material waste. Meanwhile, when the stirring assembly 6 is working, the conical rod 71 will rotate synchronously with the rotation of the straight rod 69. The conical stirring paddle 72 can fully stir the material at the bottom of the storage tank 4. In addition, the annular cover 73 has an opening 74, through which the material is discharged after the stirring is completed.

[0033] All electrical components appearing in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the hydraulic device 2 and the motor 61. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A dual-shaft concrete mixing device, comprising a base (1), a hydraulic device (2) fixedly mounted on the base (1), a top plate (3) fixedly mounted on the piston end of the hydraulic device (2), a storage tank (4) snapped onto the base (1), and a handle (5) fixedly mounted on the storage tank (4), characterized in that: A stirring assembly (6) is provided on the top plate (3), and the stirring assembly (6) includes: Motor (61), a motor (61) is fixedly installed above the top plate (3), and one end of a spring rod (62) is fixedly installed below the top plate (3). The other end of the spring rod (62) is fixedly installed at one end of the cover (63). Tooth (64), tooth (64) is fixedly installed on the inner side of the cover (63), a connecting rod (65) is fixedly installed on the output end of the motor (61), a central gear (66) is fixedly installed on the connecting rod (65), and a connecting plate (67) is attached to the connecting rod (65). Peripheral gear (68), peripheral gear (68) is rotatably installed at both ends of the connecting plate (67), one end of a straight rod (69) is fixedly installed at the center point of the peripheral gear (68), an auger paddle (610) is fixedly installed on the straight rod (69), and an isolation plate (611) is rotatably installed at the other end of the cover (63).

2. The twin-shaft concrete mixing device according to claim 1, characterized in that: Multiple sets of teeth (64), peripheral gears (68), straight rods (69) and auger propellers (610) are provided.

3. The twin-shaft concrete mixing device according to claim 1, characterized in that: The central gear (66) meshes with multiple sets of peripheral gears (68), the multiple sets of peripheral gears (68) mesh with multiple sets of teeth (64), the multiple sets of auger propellers (610) rotate in opposite directions, and the multiple sets of straight rods (69) penetrate the isolation plate (611).

4. A twin-shaft concrete mixing device according to claim 1, characterized in that: An auxiliary component (7) is provided on the storage tank (4). The auxiliary component (7) includes a conical rod (71), a conical stirring paddle (72) is fixedly installed on the conical rod (71), an annular cover (73) is fixedly installed on the inner side of the storage tank (4), an opening (74) is provided on the annular cover (73), and a guide groove (75) is provided on the annular cover (73).

5. A twin-shaft concrete mixing device according to claim 4, characterized in that: The conical rod (71), conical stirring paddle (72), opening (74) and guide groove (75) are provided in multiple sets.

6. A twin-shaft concrete mixing device according to claim 4, characterized in that: The annular cover (73) is made of rubber and is recessed towards the center. Multiple sets of the guide grooves (75) are provided at the bottom of the annular cover (73).