Stirring device for concrete stirring
By using a planetary transmission mechanism that rotates in the opposite direction of the internal and external stirring components in the concrete mixing equipment, the problem of uneven particle distribution in the existing equipment is solved, a more uniform stirring effect is achieved, and the yield rate is improved.
Patent Information
- Application Number
- CN202421663125.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-07-15
AI Technical Summary
During the mixing process of existing concrete mixing equipment, the mixing mechanism is too simple, resulting in uneven distribution of particles in concrete blocks, which affects the yield rate.
A stirring device including a stirring motor, an internal stirring assembly, a planetary transmission mechanism and an external stirring assembly are adopted. The internal stirring assembly and the external stirring assembly rotate in opposite directions to each other, and are driven by planetary gears to prevent particles from precipitating in the center or inner wall of the stirring tank to achieve uniformity. Stir.
Improve the uniformity of the stirring, prevent particles from precipitating, and improve the yield of concrete blocks.
Smart Images
Figure CN222290586U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of concrete processing, in particular to a stirring device used for concrete stirring. Background Art
[0002] Concrete mixing equipment is a device used to mix concrete.
[0003] In the existing concrete mixing equipment, during the mixing process of the equipment, the mixing mechanism is too simple, resulting in a general mixing effect. If more mixing mechanisms are needed, a large number of drive motors need to be added, which greatly increases the cost of the mixing equipment, thereby reducing the market competitiveness of the mixing equipment. In the prior art, application No. 2017103124724 discloses a high-efficiency mixing equipment for concrete mixing, including a main body, a feed pipe, a discharge pipe, a rough mixing mechanism, a high-efficiency mixing mechanism and a central control mechanism. The high-efficiency mixing mechanism includes a driving mechanism, a first mixing mechanism, a second mixing mechanism and a third mixing mechanism. The first mixing mechanism includes a first driving rod and a first mixing assembly. The second mixing mechanism includes a first moving block, a transmission block, a second driving rod, a pin, a first moving rod and a second mixing assembly. The third mixing mechanism includes a second moving block, a third driving rod, a second moving rod and a plurality of third mixing assemblies. In the high-efficiency mixing equipment for concrete mixing, the second mixing mechanism performs swing mixing on the concrete, and then the third mixing mechanism performs back and forth mixing on the concrete, and finally the first mixing mechanism performs rotation mixing on the concrete.
[0004] When the concrete formula components are stirred accordingly, since the concrete slurry components contain a large number of particles, the existing mixers are prone to particles adhering to the inner wall and center of the mixing tank during stirring, resulting in the particles not being evenly distributed in the concrete slurry, which in turn leads to uneven particle distribution of the concrete blocks during compression molding. Therefore, a specific stirring device is required to perform the stirring operation in order to improve the corresponding yield rate. Summary of the invention
[0005] In order to solve the above problems, the utility model provides a stirring device for concrete mixing:
[0006] A stirring device for concrete mixing, comprising a stirring motor, an inner stirring component, a planetary transmission mechanism, an outer stirring component and a stirring tank, wherein the stirring motor is connected to the inner stirring component in a transmission manner, and the inner stirring component comprises an inner stirring shaft connected to the stirring motor in a transmission manner and an inner stirring paddle arranged at the lower end of the inner stirring shaft.
[0007] The planetary transmission mechanism includes an internal gear fixedly sleeved on the inner stirring shaft, a plurality of planetary gears meshingly connected to the outside of the internal gear, and an external gear meshingly sleeved on the outside of the plurality of planetary gears. The external gear is concentrically arranged with the internal gear, and the external gear is transmission-connected to an external stirring component. The external stirring component is located on the periphery of the internal stirring component, and the external stirring component and the internal stirring component rotate and stir in opposite directions to each other.
[0008] Preferably, the inner stirring assembly generates an outward stirring force on the concrete slurry located at the center of the mixing tank, and the outer stirring assembly generates an inward stirring force on the concrete slurry located at the inner wall of the mixing tank. At this time, the stirring force generated by the inner stirring assembly and the outer stirring assembly on the concrete slurry in the mixing tank makes the concrete slurry stir back and forth without settling in the center of the mixing tank or near the inner wall.
[0009] Preferably, the outer shell of the stirring motor is fixedly connected to a pipe sleeve adapted for the inner stirring shaft, and a plurality of the planetary gears are movably arranged in the pipe wall of the pipe sleeve, and the plurality of the planetary gears are circumferentially arrayed in the pipe wall of the pipe sleeve, and the plurality of the planetary gears are arranged in the gap between the internal gear and the external gear, and the planetary gears mesh with the transmission internal gear and the external gear.
[0010] Preferably, the inner stirring paddle is composed of a plurality of arc-shaped blades distributed in a ring shape and the inner ends of the blades are fixedly connected to the inner stirring shaft. The outer stirring assembly includes a plurality of outer stirring members distributed in a circumferential ring shape on the outer edge of the outer gear. The outer stirring member includes an outer stirring rod fixedly connected to the outer edge of the outer gear and an outer stirring paddle fixedly connected to the outer side of the lower end of the outer stirring rod. A gap is provided between the outer stirring rod and the inner stirring assembly.
[0011] Preferably, a cylindrical mixing chamber for concrete mixing is provided in the mixing tank, the external mixing paddle is an arc-shaped plate-like structure, and a shovel head is provided at the outer end of a plurality of the external mixing paddles. The shovel head is tangent to and fits with the inner wall of the cylindrical mixing chamber, and the shovel head is used to shovel out fixed particles attached to the cylindrical mixing chamber.
[0012] Preferably, the external gear is provided with a plurality of annular flanges protruding outward, the plurality of annular flanges are arranged along the axial direction of the external gear, and the outer ends of the plurality of annular flanges are fixedly connected to respective external stirring rods.
[0013] Preferably, a pipe sleeve is fixedly connected to the inner end of the stirring tank, and a feeding door for feeding is provided on the surface of the stirring tank.
[0014] Beneficial effect: During operation, under the transmission of the planetary gears, the inner gear and the outer gear rotate in opposite directions, so that the inner stirring component and the outer stirring component rotate in opposite directions, avoiding the components with larger particle sizes from settling in the center of the stirring tank or near the inner wall under stirring in a single rotation direction, thereby improving the uniformity of stirring. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a diagram of the internal structure of the stirring device.
[0016] Figure 2 for Figure 1 A magnified schematic diagram of center A.
[0017] Figure 3 This is the internal cross-sectional schematic diagram of the stirring device.
[0018] Figure numerals: 1. stirring motor; 2. stirring tank; 3. inner stirring shaft; 4. inner stirring paddle; 5. inner gear; 6. planetary gear; 7. outer gear; 8. pipe sleeve; 9. outer stirring rod; 10. outer stirring paddle; 11. shovel head; 12. annular flange; 13. feed gate. DETAILED DESCRIPTION
[0019] The following is combined with Figure 1-3 The utility model is further described with examples.
[0020] When the concrete formula components are stirred accordingly, since the raw material powder components contain a large number of particles, the existing mixer is prone to particles adhering to the inner wall and center of the mixing tank 2 during stirring, resulting in the particles not being evenly distributed in the raw material powder, which in turn leads to uneven particle distribution of the concrete block during compression molding. Therefore, a specific stirring device is required to perform the stirring operation in order to improve the corresponding yield rate.
[0021] like Figure 1 As shown, a mixing device dedicated to concrete includes a mixing motor 1, an inner mixing component, a planetary transmission mechanism, an outer mixing component and a mixing tank 2, wherein the mixing motor 1 is connected to the inner mixing component. The inner mixing component generates an outward mixing force on the concrete slurry located at the center of the mixing tank 2, and the outer mixing component generates an inward mixing force on the concrete slurry located on the inner wall of the mixing tank 2.
[0022] The inner stirring assembly includes an inner stirring shaft 3 drivingly connected to the stirring motor 1 and an inner stirring paddle 4 arranged at the lower end of the inner stirring shaft 3. The inner end of the stirring tank 2 is fixedly connected to a pipe sleeve 8, and a feeding door 13 for feeding is provided on the surface of the stirring tank 2. The stirring tank 2 is composed of an upper cover and a shell, and the upper cover and the shell are fixedly and sealedly connected to each other by screwing or adding screw fasteners.
[0023] like Figure 2As shown, the planetary transmission mechanism includes an internal gear 5 fixedly sleeved with the internal stirring shaft 3, a plurality of planetary gears 6 meshingly connected to the outside of the internal gear 5, and an external gear 7 meshingly sleeved with the outside of the plurality of planetary gears 6, wherein the external gear 7 is concentrically arranged with the internal gear 5, and the external gear 7 is transmission-connected with the external stirring assembly. The plurality of planetary gears 6 are arranged in the gap between the internal gear 5 and the external gear 7, and the planetary gears 6 meshingly drive the external toothed ring surface provided on the internal gear 5 and the internal toothed ring surface provided on the external gear 7.
[0024] The outer stirring component is located at the periphery of the inner stirring component, and the outer stirring component and the inner stirring component rotate and stir in opposite directions. The present application uses a planetary transmission mechanism to make the inner stirring component and the outer stirring component stir and adapt to each other, thereby preventing particles from settling in the center of the stirring tank 2 or near the inner wall during the stirring process, thereby improving the uniformity of stirring. The outer gear 7 is provided with a plurality of annular flanges 12 protruding outward, and the plurality of annular flanges 12 are arranged along the axial direction of the outer gear 7, and the outer ends of the plurality of annular flanges 12 are fixedly connected to each outer stirring rod 9.
[0025] like Figure 1 As shown, the outer shell of the stirring motor 1 is fixedly connected with a pipe sleeve 8 adapted to the inner stirring shaft 3, and a plurality of the planetary gears 6 are movably arranged in the pipe wall of the pipe sleeve 8, and the plurality of the planetary gears 6 are circumferentially arrayed in the pipe wall of the pipe sleeve 8. The inner stirring paddle 4 is composed of a plurality of arc-shaped blades distributed in an annular manner and fixedly connected to the inner stirring shaft 3 at the inner end, and the outer stirring assembly includes a plurality of outer stirring members distributed in an annular manner on the outer edge of the outer gear 7, and the outer stirring member includes an outer stirring rod 9 fixedly connected to the outer edge of the outer gear 7 and an outer stirring paddle 10 fixedly connected to the outer side of the lower end of the outer stirring rod 9, and a gap is provided between the outer stirring rod 9 and the inner stirring assembly.
[0026] like Figure 3 As shown, the mixing tank 2 is provided with a cylindrical mixing chamber for concrete mixing, and the outer mixing paddle 10 is an arc-shaped plate-like structure. The outer ends of the plurality of outer mixing paddles 10 are provided with a shovel head 11, and the shovel head 11 is tangent to the inner wall of the cylindrical mixing chamber, and the shovel head 11 is used to shovel out the fixed particles attached to the cylindrical mixing chamber. During operation, the inner mixing component rotates clockwise, and the slurry located at the center of the cylindrical mixing chamber moves outward centrifugally, while the outer mixing component located at the periphery of the inner mixing component rotates counterclockwise, and at this time, the slurry on the inner wall of the mixing tank 2 is scraped and moved centripetally, and the centrifugal or centripetal slurry continues to move under the action of inertia to achieve a full mixing effect. The centripetal particles will be stirred by the inner mixing component, while the centrifugal particles will be stirred by the outer mixing component, so they will move repeatedly between the inner mixing component and the outer mixing component and be fully and evenly mixed with other components.
[0027] Obviously, the above embodiments of the present invention are merely examples for illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to provide all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still fall within the scope of protection of the present invention.
Claims
1. A mixing device for concrete mixing, characterized in that: The invention comprises a stirring motor (1), an internal stirring component, a planetary transmission mechanism, an external stirring component and a stirring tank (2), wherein the stirring motor (1) is connected to the internal stirring component in a transmission manner, the internal stirring component comprises an internal stirring shaft (3) connected to the stirring motor (1) in a transmission manner and an internal stirring paddle (4) arranged at the lower end of the internal stirring shaft (3), the planetary transmission mechanism comprises an internal gear (5) fixedly sleeved on the internal stirring shaft (3), a plurality of planetary gears (6) meshingly connected to the outside of the internal gear (5), and an external gear (7) meshingly sleeved on the outside of the plurality of planetary gears (6), the external gear (7) being arranged concentrically with the internal gear (5), the external gear (7) being connected to the external stirring component in a transmission manner, the external stirring component being located on the periphery of the internal stirring component, and the external stirring component and the internal stirring component rotating and stirring in opposite directions.
2. A stirring device for concrete mixing according to claim 1, characterized in that: The inner stirring component generates an outward stirring force on the concrete slurry located at the center of the stirring tank (2), and the outer stirring component generates an inward stirring force on the concrete slurry located on the inner wall of the stirring tank (2).
3. A stirring device for concrete mixing according to claim 1, characterized in that: The outer shell of the stirring motor (1) is fixedly connected to a pipe sleeve (8) adapted to the inner stirring shaft (3); a plurality of planetary gears (6) are movably arranged in the pipe wall of the pipe sleeve (8); the plurality of planetary gears (6) are circumferentially arrayed in the pipe wall of the pipe sleeve (8); the plurality of planetary gears (6) are arranged in the gap between the inner gear (5) and the outer gear (7); and the planetary gears (6) mesh with the inner gear (5) and the outer gear (7).
4. A stirring device for concrete mixing according to claim 1, characterized in that: The inner stirring paddle (4) is composed of a plurality of arc-shaped paddles distributed in an annular manner and whose inner ends are fixedly connected to the inner stirring shaft (3); the outer stirring assembly comprises a plurality of outer stirring members distributed in an annular manner on the outer edge of the outer gear (7); the outer stirring members comprise an outer stirring rod (9) fixedly connected to the outer edge of the outer gear (7) and an outer stirring paddle (10) fixedly connected to the outer side of the lower end of the outer stirring rod (9); a gap is provided between the outer stirring rod (9) and the inner stirring assembly.
5. A stirring device for concrete mixing according to claim 4, characterized in that: The mixing tank (2) is provided with a columnar mixing chamber for mixing concrete, the external mixing paddles (10) are arc-shaped plate-shaped structures, and the outer ends of the plurality of external mixing paddles (10) are provided with shovel heads (11), the shovel heads (11) are tangent to and fit with the inner wall of the columnar mixing chamber, and the shovel heads (11) are used to shovel out fixed particles attached to the columnar mixing chamber.
6. A stirring device for concrete mixing according to claim 1, characterized in that: The external gear (7) is provided with a plurality of outwardly protruding annular flanges (12), the plurality of annular flanges (12) are arranged along the axial direction of the external gear (7), and the outer ends of the plurality of annular flanges (12) are fixedly connected to respective external stirring rods (9).
7. A stirring device for concrete mixing according to claim 1, characterized in that: The inner end of the stirring tank (2) is fixedly connected to a pipe sleeve (8), and the surface of the stirring tank (2) is provided with a feeding door (13) for feeding materials.