Planetary mixer for concrete

Abstract

The utility model relates to the technical field of concrete processing, and discloses a planetary mixer for concrete, the planetary mixer comprises a support, the interior of the support is fixedly connected with a mixing cylinder, and the upper surface of the mixing cylinder is fixedly connected with a first motor. According to the planetary mixer for the concrete, the bottom of the mixing cylinder is arranged to be in a hopper shape, so that the mixed concrete can be conveniently discharged, the inner wall of the mixing cylinder is more thoroughly cleaned by arranging the cleaning brush matched with the internal structure of the mixing cylinder, and the cleaning effect of the inner wall of the mixing cylinder is improved; a rotating shaft drives a first gear to be meshed with a gear ring when rotating along with a rotating plate, a second auger is promoted to rotate along with the rotating plate and rotate at the same time, then concrete is fully stirred, the stirring efficiency is improved, the stirring quality is guaranteed, and the problems that an existing concrete stirring machine is inconvenient to discharge, simple in stirring structure and low in cost are solved. The stirring effect is poor, and the cleaning range of a cleaning brush in the stirring cylinder is small.

Description

Technical Field

[0001] The present application relates to the technical field of concrete processing, and in particular to a planetary mixer for concrete. Background Art

[0002] Concrete, abbreviated as "concrete", is a general term for engineering composite materials that are cemented into a whole by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion, and then mixed to obtain cement concrete, also known as ordinary concrete, which is widely used in civil engineering.

[0003] The existing patent (publication number: CN 211164645U) discloses a vertical axis planetary concrete mixer, including a mixing cylinder, a fixed seat, a supporting device and a feeding hopper, the bottom of the mixing cylinder is fixedly welded with a fixed seat, the left side of the top of the mixing cylinder is connected to the feeding hopper, the right side of the top of the mixing cylinder is connected to a mounting door through a spring hinge, the center of the top of the mixing cylinder is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected to one end of a rotating rod through a coupling, the other end of the rotating rod passes through the top of the mixing cylinder and extends to the inside of the mixing cylinder, and is fixedly welded to the center of the top of the rotating disk, one side of the bottom of the mixing cylinder is connected to a discharge pipe with a valve, the bottom of the discharge pipe passes through the fixed seat and extends to the bottom of the fixed seat, the circumferential side wall of the fixed seat is fixedly welded with a connecting plate, and the connecting plate is provided with a supporting device. The vertical axis planetary concrete mixer has a simple structure and high working efficiency.

[0004] The bottom of the mixing cylinder of the above concrete mixer is a flat structure, which is not conducive to the feeding of concrete. The mixing structure of the mixing cylinder is also relatively simple, and the mixing effect is not good. The cleaning range of the cleaning brush in the mixing cylinder is also small, and the inner wall of the mixing cylinder cannot be cleaned more thoroughly. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present application provides a planetary mixer for concrete, which has the advantages of being easy to discharge the mixed concrete, improving the stirring effect of the stirring structure, improving the stirring efficiency, and also expanding the cleaning range of the cleaning brush, making the cleaning operation more thorough, etc., and solves the problem that the bottom of the mixing cylinder of the existing concrete mixer is a flat structure, which is not conducive to the discharge of concrete, the stirring structure of the mixing cylinder is also relatively simple, the stirring effect is not good, the cleaning range of the cleaning brush in the mixing cylinder is also small, and the inner wall of the mixing cylinder cannot be cleaned more thoroughly.

[0006] To achieve the above object, the present application provides the following technical solution: A planetary mixer for concrete, including a bracket, inside which a mixing cylinder is fixedly connected. On the upper surface of the mixing cylinder, a first motor is fixedly connected. At the bottom of the first motor, an output shaft is rotationally connected. On the outer circumferential surface of the output shaft, a first auger is fixedly sleeved. On the outer circumferential surface of the output shaft, a rotating plate is fixedly sleeved. Inside the rotating plate, two rotating shafts are rotationally inserted. On the outer circumferential surface of each rotating shaft, a second auger is fixedly sleeved. On the outer circumferential surface of each rotating shaft, a first gear is fixedly sleeved. On the inner top wall of the mixing cylinder, a toothed ring is fixedly connected. The first gear meshes with the toothed ring. On the bottom surface of the rotating plate, two cleaning brushes are fixedly connected. At the bottom of the mixing cylinder, a feeding pipe is provided. On the outer circumferential surface of the feeding pipe, a solenoid valve is provided. On the bottom surface of the bracket, four rollers are fixedly connected.

[0007] Through the above solution, since the bottom of the mixing cylinder of the existing concrete mixer is a flat structure, which is not conducive to the feeding of concrete, the mixing structure of the mixing cylinder is also relatively simple, the mixing effect is not good, and the cleaning range of the cleaning brush in the mixing cylinder is also small, and the inner wall of the mixing cylinder cannot be cleaned thoroughly. By setting the bottom of the mixing cylinder to be funnel-shaped, it is convenient to feed the mixed concrete. By setting a cleaning brush adapted to the internal structure of the mixing cylinder, the cleaning of the inner wall of the mixing cylinder is made more thorough, improving the cleaning effect of the inner wall of the mixing cylinder. When the rotating shaft rotates with the rotating plate, it drives the first gear to mesh with the toothed ring, causing the second auger to rotate while rotating with the rotating plate, thereby fully mixing the concrete, improving the mixing efficiency, and ensuring the mixing quality.

[0008] Further, the bottom of the mixing cylinder is funnel-shaped, the structure of the cleaning brush is adapted to the internal structure of the mixing cylinder, and the side of the cleaning brush close to the mixing cylinder abuts against the inner wall of the mixing cylinder.

[0009] Through the above solution, the funnel-shaped mixing cylinder is convenient for feeding, and the cleaning brush adapted to the internal structure of the mixing cylinder can improve the cleaning effect of the inner wall of the mixing cylinder.

[0010] Further, on the outer circumferential surface of each rotating shaft, a first limiting ring is fixedly sleeved, and the outer circumferential surface of the first limiting ring is rotationally connected with the inside of the rotating plate.

[0011] Through the above solution, the rotating shaft is restricted to prevent the rotating shaft from sliding and shifting, improving the stability of the movement of the rotating shaft and the second auger.

[0012] Further, a feeding pipe is fixedly inserted into the mixing cylinder. At the top of the feeding pipe, a feeding hopper is fixedly connected. Inside the feeding hopper, two crushing rollers are rotationally connected.

[0013] Through the above solution, the concrete raw materials are crushed by the crushing rollers, effectively improving the stirring efficiency of the subsequent concrete raw materials.

[0014] Further, a second motor is provided on the back of one of the crushing rollers, and a second gear is fixedly sleeved on the outer circumferential surface of each crushing roller, and the two second gears are meshed with each other.

[0015] Through the above solution, the second motor provides power for one of the crushing rollers, and the reverse linkage between the two crushing rollers is realized through the second gears.

[0016] Further, four positioning seats are fixedly inserted inside the bracket, a lead screw is rotatably inserted inside each positioning seat, a positioning rod is threadedly connected to the outer circumferential surface of the lead screw, and a fixed disk is fixedly connected to the bottom surface of the positioning rod.

[0017] Through the above solution, by rotating the lead screw to drive the positioning rod and the fixed disk to move downward, the fixed disk is urged to abut against the ground, thereby strengthening the mixer and improving the stability of the mixer during operation.

[0018] Further, a second limiting ring is fixedly sleeved on the outer circumferential surface of each lead screw, and the outer circumferential surface of the second limiting ring is rotatably connected to the inside of the positioning seat.

[0019] Through the above solution, the lead screw is restricted to prevent the lead screw from sliding and shifting, and the stability of the lead screw movement is improved.

[0020] Further, two limiting blocks are fixedly connected to the outer circumferential surface of each positioning rod, and the outer surface of each limiting block is slidably connected to the positioning seat through an empty groove opened inside the positioning seat.

[0021] Through the above solution, the positioning rod is restricted to prevent the positioning rod from rotating with the lead screw, so that the positioning rod always drives the fixed disk to rise and fall, and at the same time, the positioning rod is prevented from falling off the inside of the positioning seat.

[0022] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0023] For this planetary mixer for concrete, by setting the bottom of the mixing cylinder to be funnel-shaped, it is convenient to discharge the mixed concrete. By setting a cleaning brush adapted to the internal structure of the mixing cylinder, the inner wall of the mixing cylinder is cleaned more thoroughly, improving the cleaning effect of the inner wall of the mixing cylinder. When the rotating shaft rotates with the rotating plate, it drives the first gear to mesh with the toothed ring, so that the second auger rotates while rotating with the rotating plate, thereby fully stirring the concrete, improving the stirring efficiency and ensuring the stirring quality, solving the problems of inconvenient discharging of the existing concrete mixer, relatively simple stirring structure, poor stirring effect, and small cleaning range of the cleaning brush in the mixing cylinder. Brief Description of the Drawings

[0024] Figure 1 This is the overall three-dimensional structure diagram of the present application;

[0025] Figure 2 This is the overall front view structure diagram of the present application;

[0026] Figure 3 This is the structure diagram of the stirring cylinder of the present application;

[0027] Figure 4 This is the structure diagram of the rotating shaft of the present application;

[0028] Figure 5 This is the structure diagram of the feeding hopper of the present application;

[0029] Figure 6 This is the structure diagram of the positioning seat of the present application.

[0030] In the figure:

[0031] 1. Bracket; 2. Stirring cylinder; 3. First motor; 4. Output shaft; 5. First auger; 6. Rotating plate; 7. Rotating shaft; 8. Second auger; 9. First gear; 10. Tooth ring; 11. Cleaning brush; 12. First limit ring; 13. Feeding pipe; 14. Feeding hopper; 15. Crushing roller; 16. Second gear; 17. Second motor; 18. Discharge pipe; 19. Solenoid valve; 20. Roller; 21. Positioning seat; 22. Lead screw; 23. Positioning rod; 24. Fixed disk; 25. Second limit ring; 26. Limit block. Detailed Description of the Invention

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0033] Please refer to Figure 1 , Figure 3 and Figure 4, a planetary mixer for concrete in this embodiment includes a bracket 1. Inside the bracket 1, there is a stirring cylinder 2 fixedly connected. On the upper surface of the stirring cylinder 2, there is a first motor 3 fixedly connected. At the bottom of the first motor 3, there is an output shaft 4 rotatably connected. On the outer circumferential surface of the output shaft 4, there is a first auger 5 fixedly sleeved. On the outer circumferential surface of the output shaft 4, there is a rotating plate 6 fixedly sleeved. Inside the rotating plate 6, there are two rotating shafts 7 rotatably inserted. On the outer circumferential surface of each rotating shaft 7, there is a second auger 8 fixedly sleeved. On the outer circumferential surface of each rotating shaft 7, there is a first gear 9 fixedly sleeved. On the inner top wall of the stirring cylinder 2, there is a toothed ring 10 fixedly connected. The first gear 9 meshes with the toothed ring 10. On the bottom surface of the rotating plate 6, there are two cleaning brushes 11 fixedly connected. At the bottom of the stirring cylinder 2, there is a feeding pipe 18. On the outer circumferential surface of the feeding pipe 18, there is a solenoid valve 19. On the bottom surface of the bracket 1, there are four rollers 20 fixedly connected.

[0034] Please refer to Figure 2 , Figure 3 and Figure 4 , the bottom of the stirring cylinder 2 is in a funnel shape. The structure of the cleaning brush 11 is adapted to the internal structure of the stirring cylinder 2. The side of the cleaning brush 11 close to the stirring cylinder 2 abuts against the inner wall of the stirring cylinder 2. The funnel-shaped stirring cylinder 2 is convenient for feeding. The cleaning brush 11 adapted to the internal structure of the stirring cylinder 2 can improve the cleaning effect of the inner wall of the stirring cylinder 2.

[0035] Please refer to Figure 4 , on the outer circumferential surface of each rotating shaft 7, there is a first limit ring 12 fixedly sleeved. The outer circumferential surface of the first limit ring 12 is rotatably connected to the inside of the rotating plate 6, which restricts the rotating shaft 7 to prevent the rotating shaft 7 from sliding and offsetting, and improves the stability of the movement of the rotating shaft 7 and the second auger 8.

[0036] Please refer to Figure 1 , Figure 2 and Figure 5 , inside the stirring cylinder 2, there is a feeding pipe 13 fixedly inserted. At the top of the feeding pipe 13, there is a feeding hopper 14 fixedly connected. Inside the feeding hopper 14, there are two crushing rollers 15 rotatably connected. The concrete raw materials are crushed by the crushing rollers 15, effectively improving the stirring efficiency of the subsequent concrete raw materials.

[0037] Please refer to Figure 1 , Figure 2 and Figure 5 , on the back of one of the crushing rollers 15, there is a second motor 17. On the outer circumferential surface of each crushing roller 15, there is a second gear 16 fixedly sleeved. The two second gears 16 mesh with each other. The second motor 17 provides power for one of the crushing rollers 15, and the reverse linkage between the two crushing rollers 15 is realized through the second gears 16.

[0038] Please refer to Figure 1 and Figure 6, four positioning seats 21 are fixedly inserted inside the support 1. A lead screw 22 is rotatably inserted inside each positioning seat 21. A positioning rod 23 is threadedly connected to the outer circumferential surface of the lead screw 22. A fixed disk 24 is fixedly connected to the bottom surface of the positioning rod 23. By rotating the lead screw 22, the positioning rod 23 and the fixed disk 24 are driven to move downward, so that the fixed disk 24 abuts against the ground, thereby strengthening the mixer and improving the stability of the mixer during operation.

[0039] Please refer to Figure 6 , a second limiting ring 25 is fixedly sleeved on the outer circumferential surface of each lead screw 22. The outer circumferential surface of the second limiting ring 25 is rotatably connected to the inside of the positioning seat 21 to limit the lead screw 22 and prevent the lead screw 22 from sliding and shifting, thereby improving the stability of the movement of the lead screw 22.

[0040] Please refer to Figure 6 , two limiting blocks 26 are fixedly connected to the outer circumferential surface of each positioning rod 23. The outer surface of each limiting block 26 is slidably connected to the positioning seat 21 through an empty groove opened inside the positioning seat 21 to limit the positioning rod 23, prevent the positioning rod 23 from rotating with the lead screw 22, ensure that the positioning rod 23 always drives the fixed disk 24 to move up and down, and also prevent the positioning rod 23 from falling off the inside of the positioning seat 21.

[0041] In a planetary mixer for concrete in this embodiment, by setting the bottom of the mixing cylinder 2 to be funnel-shaped, it is convenient to discharge the mixed concrete. By providing a cleaning brush 11 adapted to the internal structure of the mixing cylinder 2, the inner wall of the mixing cylinder 2 can be cleaned more thoroughly, improving the cleaning effect of the inner wall of the mixing cylinder 2. When the rotating shaft 7 rotates following the rotating plate 6, the first gear 9 is driven to mesh with the toothed ring 10, so that the second auger 8 rotates while rotating following the rotating plate 6, thereby fully mixing the concrete, improving the mixing efficiency and ensuring the mixing quality, and solving the problems of inconvenient discharging, relatively simple mixing structure, poor mixing effect and small cleaning range of the cleaning brush 11 in the mixing cylinder 2 of the existing concrete mixer.

[0042] It should be noted that a handwheel is provided on the outer circumferential surface of each lead screw 22, which is convenient to control the lead screw 22 through the handwheel.

[0043] The working principle of the above embodiment is as follows:

[0044] When concrete mixing operation is required, feeding can be carried out through the feeding hopper 14. When feeding, start the second motor 17 to drive one of the crushing rollers 15 to rotate. The two crushing rollers 15 are reversely linked through the second gear 16. After the concrete raw materials enter the feeding hopper 14, they will be crushed by the crushing rollers 15 and then fall into the mixing cylinder 2 through the feeding pipe 13. Start the first motor 3 to drive the first auger 5 and the rotating plate 6 to rotate through the output shaft 4. The rotating plate 6 drives the second auger 8 to rotate through the rotating shaft 7. While the rotating shaft 7 rotates with the rotating plate 6, it will drive the first gear 9 to engage with the toothed ring 10, prompting the second auger 8 to rotate self - rotatably while rotating with the rotating plate 6. Immediately, under the combined action of the first auger 5 and the second auger 8, the concrete raw materials are fully stirred. While the rotating plate 6 rotates, it will also drive the cleaning brush 11 to rotate. The cleaning brush 11 will carry out a relatively thorough cleaning operation on the inner wall of the mixing cylinder 2. When the mixing operation is completed, the solenoid valve 19 can be opened to start discharging through the discharging pipe 18. The hopper - shaped mixing cylinder 2 facilitates the flowing discharge of concrete. During the discharging process, the first motor 3 can be started to output a small amount of power to prompt the cleaning brush 11 to rotate slowly, prompting the concrete hanging on the inner wall of the mixing cylinder 2 to fall off and assisting the concrete in discharging. The rotatable lead screw 22 drives the fixed disk 24 to move downward through the positioning rod 23, prompting the fixed disk 24 to contact the ground, thereby fixing the mixer and improving the stability of the mixer during operation.

[0045] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0046] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A planetary mixer for concrete, comprising a bracket (1), characterized in that: Inside the bracket (1), a stirring cylinder (2) is fixedly connected. On the upper surface of the stirring cylinder (2), a first motor (3) is fixedly connected. At the bottom of the first motor (3), an output shaft (4) is rotatably connected. On the outer circumferential surface of the output shaft (4), a first auger (5) is fixedly sleeved. On the outer circumferential surface of the output shaft (4), a rotating plate (6) is fixedly sleeved. Inside the rotating plate (6), two rotating shafts (7) are rotatably inserted. On the outer circumferential surface of each rotating shaft (7), a second auger (8) is fixedly sleeved. On the outer circumferential surface of each rotating shaft (7), a first gear (9) is fixedly sleeved. On the inner top wall of the stirring cylinder (2), a toothed ring (10) is fixedly connected. The first gear (9) meshes with the toothed ring (10). On the bottom surface of the rotating plate (6), two cleaning brushes (11) are fixedly connected. At the bottom of the stirring cylinder (2), a feeding pipe (18) is provided. On the outer circumferential surface of the feeding pipe (18), a solenoid valve (19) is provided. On the bottom surface of the bracket (1), four rollers (20) are fixedly connected.

2. The planetary mixer for concrete according to claim 1, characterized in that: The bottom of the stirring cylinder (2) is in a funnel shape. The structure of the cleaning brush (11) is adapted to the internal structure of the stirring cylinder (2). The side of the cleaning brush (11) close to the stirring cylinder (2) abuts against the inner wall of the stirring cylinder (2).

3. The planetary mixer for concrete according to claim 1, characterized in that: On the outer circumferential surface of each rotating shaft (7), a first limiting ring (12) is fixedly sleeved. The outer circumferential surface of the first limiting ring (12) is rotatably connected to the inside of the rotating plate (6).

4. The planetary mixer for concrete according to claim 1, characterized in that: Inside the stirring cylinder (2), a feeding pipe (13) is fixedly inserted. At the top of the feeding pipe (13), a feeding hopper (14) is fixedly connected. Inside the feeding hopper (14), two crushing rollers (15) are rotatably connected.

5. The planetary mixer for concrete according to claim 4, wherein: On the back of one of the crushing rollers (15), a second motor (17) is provided. On the outer circumferential surface of each crushing roller (15), a second gear (16) is fixedly sleeved. The two second gears (16) mesh with each other.

6. A planetary mixer for concrete according to claim 1, characterized in that: Inside the bracket (1), four positioning seats (21) are fixedly inserted. Inside each positioning seat (21), a lead screw (22) is rotatably inserted. On the outer circumferential surface of the lead screw (22), a positioning rod (23) is threadedly connected. At the bottom surface of the positioning rod (23), a fixing plate (24) is fixedly connected.

7. The planetary mixer for concrete according to claim 6, characterized in that: On the outer circumferential surface of each lead screw (22), a second limiting ring (25) is fixedly sleeved. The outer circumferential surface of the second limiting ring (25) is rotatably connected to the inside of the positioning seat (21).

8. A planetary mixer for concrete according to claim 6, characterized in that: On the outer circumferential surface of each positioning rod (23), two limiting blocks (26) are fixedly connected. The outer surface of each limiting block (26) is slidably connected to the positioning seat (21) through an empty groove formed inside the positioning seat (21).

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