Stirring device

Abstract

The invention relates to the technical field of stirring equipment, and provides a stirring device which comprises a driving mechanism, a gear set and a stirring rod, the gear set comprises a driving wheel, driven wheels and an outer gear ring, the multiple driven wheels are distributed in the circumferential direction of the driving wheel at intervals, and the multiple driven wheels are engaged with the inner circumferential tooth part of the outer gear ring; the driving mechanism is in driving connection with the driving wheel; each driven wheel is coaxially and fixedly connected with one stirring rod, and stirring blades are arranged on the peripheral surface of each stirring rod. When the stirring device is used, the driving device runs to drive the driving wheel to rotate so as to drive the driven wheel to rotate and revolve, the driven wheel drives the stirring rod to rotate and revolve around the driving wheel, and meanwhile, a plurality of stirring blades are arranged on the stirring rod, so that the same stirring point is subjected to revolution stirring and rotation stirring at the same time; therefore, the stirring times of the stirring points are greatly improved, and the stirring pile-forming efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mixing equipment, and more particularly to a mixing device. Background Art

[0002] Mixing piles are widely used in soft soil foundation reinforcement and water-stop curtain systems. The traditional mixing pile machine rotates the shaft itself to drive the blades installed at the bottom to rotate, so as to mix the original soil and the reinforcement slurry.

[0003] The mixing quality of the mixing pile mainly depends on the number of times of mixing the original soil and the reinforcement slurry at the same position. That is, in order to ensure the mixing quality, multiple mixing passes are usually required. For example, the pile-forming process of the traditional mixing pile is usually two mixing and two spraying or four mixing and two spraying to ensure uniform mixing of the soil and the reinforcement slurry. However, this method requires multiple repeated mixing operations, which prolongs the construction period and greatly reduces the construction efficiency. Summary of the Invention

[0004] The problem to be solved by the present invention is how to improve the pile-forming efficiency of mixing.

[0005] To solve the above problems, the present invention provides a mixing device.

[0006] In a first aspect, the present invention provides a mixing device, including a driving mechanism, a gear set and a mixing rod;

[0007] The gear set includes a driving wheel, a driven wheel and an external gear ring. A plurality of the driven wheels are circumferentially spaced apart along the driving wheel. Each of the driven wheels meshes with the driving wheel, and the plurality of driven wheels respectively mesh with the inner circumferential teeth of the external gear ring;

[0008] The driving mechanism is drivingly connected to the driving wheel and is configured to drive the driving wheel to rotate so as to drive the plurality of driven wheels to rotate themselves and revolve around the driving wheel;

[0009] Each of the driven wheels is coaxially and fixedly connected to a mixing rod, and mixing blades are respectively arranged on the outer peripheral surface of each mixing rod.

[0010] Optionally, the driving device includes a motor and a transmission shaft. One end of the transmission shaft is drivingly connected to the motor, and the other end is drivingly connected to the driving wheel.

[0011] Optionally, the mixing device further includes a chassis. The end portions of each mixing rod away from the driven wheel are respectively rotatably connected to the chassis. The chassis rotates under the drive of the revolution of each driven wheel, and the rotation axis of the chassis is coaxial with the central axis of the driving wheel.

[0012] Optionally, a drill bit is arranged on the end face of the chassis facing away from the mixing rod.

[0013] Optionally, a plurality of drill pipes are circumferentially spaced along the drill bit. One end of each drill pipe is fixedly connected to the drill bit. The drill pipes extend radially along the drill bit, and each drill pipe is provided with drill teeth.

[0014] Optionally, the stirring device further includes a main body. A traction mechanism is provided on the main body. The traction mechanism is used to drive the driving mechanism, the gear set, and the stirring rod to move in the vertical direction.

[0015] Optionally, a guide rod is also provided on the main body along the vertical direction. A sliding bracket is provided on the outer wall of the external gear ring. The sliding bracket is slidably connected to the guide rod.

[0016] Optionally, the traction mechanism includes a winch, a pulley, and a traction rope. The winch is provided on the main body. The pulley is provided at the top of the guide rod. One end of the traction rope is fixedly connected to the winch, and the other end of the traction rope bypasses the pulley and is connected to the driving mechanism.

[0017] Optionally, a reinforcing rod is also provided on the main body. One end of the reinforcing rod is connected to the main body, and the other end is connected to the guide rod.

[0018] Optionally, slurry spraying holes are provided on the outer peripheral surface of the stirring rod. A through hole is provided through the driven wheel. The stirring rod is provided with a slurry conveying channel corresponding to the through hole. The through hole is configured to allow a slurry conveying pipe to be inserted. The slurry conveying pipe is used to inject slurry into the slurry conveying channel and spray it out from the slurry spraying holes.

[0019] The beneficial effects of the stirring device of the present invention are as follows: A gear set is provided. A plurality of driven wheels are circumferentially spaced on the driving wheel. The plurality of driven wheels are respectively engaged with the inner circumferential teeth of the external gear ring. The driving device is connected to the driving wheel, and the stirring rod is connected to the driven wheel. During use, the driving device operates to drive the driving wheel to rotate, so as to drive the driven wheels to rotate self - rotatably. At the same time, the external gear ring plays a guiding role for the driven wheels, and the driven wheels revolve around the driving wheel along the external gear ring. Correspondingly, the driven wheels drive the stirring rod to rotate self - rotatably and revolve around the driving wheel. At the same time, a plurality of stirring blades are provided on the stirring rod, so that the same stirring point will be simultaneously subjected to revolution stirring and self - rotation stirring, thereby greatly increasing the number of stirring times at the stirring point, effectively avoiding the multiple stirring cycles in the related art, shortening the construction period. At the same time, the stirring blades are convenient for breaking the soil body, realizing the full mixing of the soil body and the reinforcement slurry, improving the stirring quality, and thus improving the stirring and pile - forming efficiency. Description of the Drawings

[0020] Figure 1 Structural schematic of the stirring device according to the embodiment of the present invention Figure 1 ;

[0021] Figure 2 Structural schematic of the stirring device according to the embodiment of the present invention Figure 2 ;

[0022] Figure 3 Structural schematic of the stirring device according to the embodiment of the present invention Figure 3 ;

[0023] Figure 4 is Figure 1 Schematic diagram of the e-e cross-section in

[0024] Figure 5 is Figure 3 Schematic diagram of the a-a cross-section in

[0025] Figure 6 is Figure 3 Schematic diagram of the b-b cross-section in

[0026] Figure 7 is Figure 3 Schematic diagram of the c-c cross-section in

[0027] Figure 8 is Figure 3 Schematic diagram of the d-d cross-section in

[0028] Explanation of reference numerals:

[0029] 1 - Gear set; 11 - Driving wheel; 12 - Driven wheel; 121 - Through hole; 13 - Outer gear ring

[0030] 2 - Driving mechanism; 21 - Motor; 22 - Transmission shaft

[0031] 3 - Stirring rod; 31 - Stirring blade; 32 - Slurry conveying channel

[0032] 4 - Underframe

[0033] 5 - Drill bit

[0034] 6 - Drill pipe; 61 - Drill teeth

[0035] 7 - Main body; 71 - Towing mechanism; 711 - Winch; 712 - Pulley; 713 - Towing rope; 72 - Guide rod; 73 - Reinforcing rod

[0036] 8 - Sliding bracket

[0037] 9 - Slurry pipe Detailed implementation manners

[0038] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. Instead, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

[0039] As used herein, the term "comprising" and its variations are open-ended, i.e., "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiment". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules, or units, and are not used to limit the order or interdependence relationship of the functions performed by these devices, modules, or units.

[0040] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly stated in the context, it should be understood as "one or more".

[0041] As Figures 1 to 8 shown, a stirring device provided by an embodiment of the present invention includes a driving mechanism 2, a gear set 1, and a stirring rod 3;

[0042] The gear set 1 includes a driving gear 11, a driven gear 12, and an external gear ring 13. A plurality of the driven gears 12 are circumferentially spaced apart along the driving gear 11. Each of the driven gears 12 meshes with the driving gear 11, and a plurality of the driven gears 12 respectively mesh with the inner circumferential teeth of the external gear ring 13.

[0043] Specifically, the gear set 1 includes a driving gear 11, a plurality of driven gears 12, and an external gear ring 13. The plurality of driven gears 12 are circumferentially spaced around the driving gear 11 and respectively mesh with the driving gear 11. The external gear ring 13 is disposed on the outermost side, and its inner circumferential teeth mesh with the plurality of driven gears 12. When the driving gear 11 rotates, it drives the driven gears 12 to rotate self - rotatably, and at the same time, the driven gears 12 revolve around the driving gear 11 along the external gear ring 13. The specific structure is as Figure 5 shown, and the rotation directions of the driving gear 11 and the plurality of driven gears 12 are as Figure 5 indicated by the arrow directions in

[0044] The driving mechanism 2 is drivingly connected to the driving wheel 11 and is used to drive the driving wheel 11 to rotate so as to drive a plurality of driven wheels 12 to rotate self - rotatably and revolve around the driving wheel 11.

[0045] Each driven wheel 12 is coaxially and fixedly connected to a stirring rod 3 respectively, and stirring blades 31 are respectively arranged on the outer peripheral surface of each stirring rod 3.

[0046] Specifically, the driving mechanism 2 is arranged on the upper end surface of the gear set 1, that is, the end surface facing away from the ground, and the stirring rod 3 is arranged on the lower end surface of the gear set 1, that is, the end surface facing the ground. When the driving mechanism 2 operates, it drives the gear set 1 to rotate, so as to drive the stirring rod 3 to rotate for stirring. As Figures 1 to 3 shown, the driving mechanism 2 is drivingly connected to the driving wheel 11, and a stirring rod 3 is coaxially and fixedly connected to each driven wheel 13 respectively. When the driving mechanism 2 operates, it drives the driving wheel 11 to rotate, drives the driven wheels 12 to rotate self - rotatably and revolve around the driving wheel 11 along the external gear ring 13, that is, drives the stirring rod 3 to rotate self - rotatably and revolve around the driving wheel 11, thereby increasing the stirring volume. A plurality of stirring blades 31 are also respectively arranged at intervals on the outer peripheral surface of each stirring rod 3 to increase the stirring times at the same position.

[0047] It should be noted that when the stirring device is operating, grout will be continuously injected into the stirring rod 3 so that the stirring rod 3 can spray grout while stirring, so as to fully mix the soil body and the reinforcement grout.

[0048] In this embodiment, a gear set 1 is provided. A plurality of driven wheels 12 are circumferentially arranged at intervals on the driving wheel 11. The plurality of driven wheels 12 are respectively meshed with the inner peripheral teeth of the external gear ring 13. The driving device 2 is connected to the driving wheel 11, and the stirring rod 3 is connected to the driven wheel 12. When in use, the driving device 2 operates to drive the driving wheel 11 to rotate, so as to drive the driven wheels 12 to rotate self - rotatably. At the same time, the external gear ring 13 plays a guiding role for the driven wheels 12, and the driven wheels 12 revolve around the driving wheel 11 along the external gear ring 13. Correspondingly, the driven wheels 12 drive the stirring rod 3 to rotate self - rotatably and revolve around the driving wheel 11. At the same time, a plurality of stirring blades 21 arranged on the stirring rod 3 enable the same stirring point to be simultaneously stirred by revolution and self - rotation, thus greatly increasing the stirring times of the stirring point, effectively avoiding the multiple stirring return times in the related technology, shortening the construction period. At the same time, the stirring blades 31 are convenient for crushing the soil body, realizing the full mixing of the soil body and the reinforcement grout, improving the stirring quality, so as to improve the stirring pile forming efficiency.

[0049] Optionally, the driving device includes a motor 21 and a transmission shaft 22. One end of the transmission shaft 22 is drivingly connected to the motor 21, and the other end is drivingly connected to the driving wheel 11.

[0050] Specifically, asFigures 1 to 3 As shown, the driving device 21 includes a motor 21 and a transmission shaft 22. The motor 21 is connected to one end of the transmission shaft 22, and the other end of the transmission shaft 22 is connected to the driving wheel 11. The motor 21 provides power for the rotation of the driving wheel 11, and the transmission shaft 22 transmits the power to the driving wheel 11 to achieve the rotation of the driving wheel 11.

[0051] Optionally, the stirring device further includes a chassis 4. The end portions of each stirring rod 3 away from the driven wheel 12 are respectively rotatably connected to the chassis 4. The chassis 4 rotates driven by the revolution of each driven wheel 12, and the rotation axis of the chassis 4 is coaxial with the central axis of the driving wheel 11.

[0052] Specifically, as Figures 1 to 3 and Figure 7 shown, in order to prevent the stirring rod 3 from deforming due to resistance during the process of land drilling and stirring, a chassis 4 is provided at the end portion of the stirring rod 3 away from the driven wheel 12, and each stirring rod 3 is rotatably connected to the chassis 4 so as not to affect the self-rotation of each stirring rod 3. For example, bearings are provided at corresponding positions on the end face of the chassis 4 facing the stirring rod 3, and the end portion of the stirring rod 3 away from the driven wheel 12 is rotatably connected to the chassis 4 through the bearings. During operation, the chassis 4 will rotate with the revolution of the driven wheel 12, and the rotation axis of the chassis 4 is always coaxial with the central axis of the driving wheel 11 to ensure the stability of the rotation of the chassis 4.

[0053] It should be noted that in this embodiment, the shape of the chassis 4 is set to be triangular according to the three stirring rods 3, and the shape of the chassis 4 can be set according to the number of stirring rods 3. For example, when there are 4 stirring rods 3, the chassis 4 can be rectangular.

[0054] Optionally, a drill bit 5 is provided on the end face of the chassis 4 facing away from the stirring rod 3.

[0055] Specifically, as Figure 3 and Figure 8 shown, a drill bit 5 is provided on the end face of the chassis 4 facing away from the stirring rod 3. During operation, the drill bit 5 can drill into the land to reduce the resistance of the stirring rod 3 and the stirring blades 31 when drilling into the land.

[0056] It should be noted that the shape of the drill bit can be set according to the actual construction conditions. In this embodiment, the drill bit 5 can be semi-circular. The semi-circular bottom surface is connected to the chassis 4, and drill teeth 61 are provided on the semi-circular arc surface.

[0057] Optionally, a plurality of drill rods 6 are arranged at intervals along the circumference of the drill bit 5. One end of each drill rod 6 is fixedly connected to the drill bit 5. The drill rods 6 extend along the radial direction of the drill bit 5, and drill teeth 61 are respectively provided on each drill rod 6.

[0058] Specifically, as Figure 3 and Figure 8 shown, a plurality of drill pipes 6 are arranged along the circumferential direction of the drill bit 5, and a plurality of drill teeth 61 are arranged on the drill pipes 6 to increase the contact area with the land, thereby increasing the land drilling area and reducing the land drilling resistance.

[0059] Optionally, the mixing device further includes a main body 7, and a traction mechanism 71 is arranged on the main body 7. The traction mechanism 71 is used to drive the driving mechanism 2, the gear set 1 and the mixing rod 3 to move in the vertical direction.

[0060] Specifically, as Figure 1 and Figure 2 shown, the main body 7 is used to adjust the positions of the driving mechanism 2, the gear set 1 and the mixing rod 3 to ensure the stability of each structure. A traction mechanism 71 is arranged on the main body 7, and the traction mechanism 71 can be connected to the driving mechanism 2 and / or the gear set 1 and / or the mixing rod 3 to adjust the positions of the driving mechanism 2, the gear set 1 and the mixing rod 3 in the vertical direction. For example, the traction mechanism 71 is adjusted to move each structure up and down.

[0061] Optionally, a guide rod 72 is also arranged on the main body 7 along the vertical direction. A sliding bracket 8 is arranged on the outer wall of the outer gear ring 13, and the sliding bracket 8 is slidably connected to the guide rod 72.

[0062] Specifically, as Figures 1 to 3 shown, a guide rod 72 is arranged on the main body 7 along the vertical direction to fix the positions of the driving mechanism 2, the gear set 1 and the mixing rod 3 in the horizontal direction and prevent the driving mechanism 2, the gear set 1 and the mixing rod 3 from tilting. As Figure 4 shown, a sliding bracket 8 is arranged on the outer wall of the outer gear ring 13, and the sliding bracket 8 is slidably connected to the guide rod 72 to limit the movement of the gear set 1 in the horizontal direction. At the same time, the sliding bracket 8 can slide on the guide rod 72 along with the adjustment of the traction mechanism 71.

[0063] Optionally, the traction mechanism 71 includes a winch 711, a pulley 712 and a traction rope 713. The winch 711 is arranged on the main body 7, the pulley 712 is arranged at the top of the guide rod 72, one end of the traction rope 713 is fixedly connected to the winch 711, and the other end of the traction rope 713 bypasses the pulley 712 and is connected to the driving mechanism 2.

[0064] Specifically, as Figures 1 to 2As shown in the figure, the traction mechanism 71 includes a winch 711 provided on the main body 7, a pulley 712 provided at the top end of the guide rod 72, and a traction rope 713 wound around the winch 711 and the pulley 712. One end of the traction rope 713 is fixed to the winch 711 and bypasses the pulley 712. The other end of the traction rope 713 is connected to the drive mechanism 2. When mixing, the winch 711 pays out the rope, and the drive mechanism 2, the gear set 1, and the mixing rod 3 move downward to drill and mix the soil. When the mixing construction is completed, the winch 711 takes in the rope, and the drive mechanism 2, the gear set 1, and the mixing rod 3 move upward to return to the initial state.

[0065] Optionally, a reinforcing rod 73 is further provided on the main body 7. One end of the reinforcing rod 73 is connected to the main body 7, and the other end is connected to the guide rod 72.

[0066] Specifically, as Figure 1 and Figure 2 shown, since the guide rod 72 bears the gravity of the drive mechanism 2, the gear set 1, and the mixing rod 3, in order to prevent the guide rod from deforming or breaking, the reinforcing rod 73 is provided. One end of the reinforcing rod 73 is connected to the main body 7, the other end is connected to the guide rod 72, and it is inclined to increase the bearing capacity of the guide rod 72.

[0067] Optionally, slurry spraying holes are provided on the outer peripheral surface of the mixing rod 3. A through hole 121 is provided through the driven wheel 12. The mixing rod 3 is provided with a slurry conveying channel 32 corresponding to the through hole 121. The through hole 121 is configured to allow a slurry conveying pipe 9 to be inserted. The slurry conveying pipe 9 is used to inject slurry into the slurry conveying channel 32 and spray it out from the slurry spraying holes.

[0068] Specifically, as Figure 3 shown, the slurry conveying pipe 9 is introduced into the mixing rod 3 for slurry spraying. As Figure 5 and Figure 6 shown, a through hole 121 is provided through the driven wheel 12, and a slurry conveying channel 32 is provided on the mixing rod 3. The size of the through hole 121 and the slurry conveying channel 32 are adapted to the size of the slurry conveying pipe 9. The slurry conveying channel 32 is connected to the slurry spraying holes provided on the outer peripheral surface of the mixing rod 3. The slurry conveying pipe 9 is inserted into the through hole 121 and sequentially passes through the through hole 121 and the slurry conveying channel 32, or the end is abutted against the slurry spraying hole. During the mixing and pile forming operation, one end of the slurry conveying pipe 9 is connected to the pumping and grouting hose, and a sealing joint is provided at the connection to ensure no slurry leakage during the rotation process. The other end is abutted against the slurry spraying hole for slurry spraying. Additionally, as Figures 1 to 3 and Figure 6 shown, a slurry conveying pipe 9 can be provided for each mixing rod 3 and can be adjusted according to actual conditions.

[0069] Although the present invention is disclosed as above, the scope of protection of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will all fall within the scope of protection of the present invention.

Claims

1. A stirring device, characterized in that, It includes a driving mechanism (2), a gear set (1) and a stirring rod (3); The gear set (1) includes a driving wheel (11), a driven wheel (12) and an external gear ring (13). A plurality of the driven wheels (12) are circumferentially spaced apart along the driving wheel (11). Each driven wheel (12) meshes with the driving wheel (11), and a plurality of the driven wheels (12) respectively mesh with the inner circumferential teeth of the external gear ring (13); The driving mechanism (2) is drivingly connected to the driving wheel (11) and is used to drive the driving wheel (11) to rotate so as to drive a plurality of the driven wheels (12) to rotate self - and revolve around the driving wheel (11); Each driven wheel (12) is coaxially and fixedly connected to a stirring rod (3). Stirring blades (31) are respectively arranged on the outer peripheral surface of each stirring rod (3).

2. The stirring device according to claim 1, characterized in that, The driving device includes a motor (21) and a transmission shaft (22). One end of the transmission shaft (22) is drivingly connected to the motor (21), and the other end is drivingly connected to the driving wheel (11).

3. The stirring device according to claim 1, characterized in that, It further includes a chassis (4). The end parts of each stirring rod (3) away from the driven wheel (12) are respectively rotationally connected to the chassis (4). The chassis (4) rotates driven by the revolution of each driven wheel (12). The rotation axis of the chassis (4) is coaxial with the central axis of the driving wheel (11).

4. The stirring device according to claim 3, characterized in that A drill bit (5) is arranged on the end face of the chassis (4) facing away from the stirring rod (3).

5. The stirring device according to claim 4, characterized in that, A plurality of drill rods (6) are circumferentially spaced along the drill bit (5). One end of each drill rod (6) is fixedly connected to the drill bit (5). The drill rods (6) extend radially along the drill bit (5), and drill teeth (61) are respectively arranged on each drill rod (6).

6. The stirring device according to claim 1, characterized in that, It further includes a main body (7). A traction mechanism (71) is arranged on the main body (7). The traction mechanism (71) is used to drive the driving mechanism (2), the gear set (1) and the stirring rod (3) to move in the vertical direction.

7. The stirring device according to claim 6, characterized in that, A guide rod (72) arranged in the vertical direction is further arranged on the main body (7). A sliding bracket (8) is arranged on the outer wall of the external gear ring (13). The sliding bracket (8) is slidably connected to the guide rod (72).

8. The stirring device according to claim 7, characterized in that, The traction mechanism (71) includes a winch (711), a pulley (712) and a traction rope (713). The winch (711) is arranged on the main body (7). The pulley (712) is arranged at the top of the guide rod (72). One end of the traction rope (713) is fixedly connected to the winch (711), and the other end of the traction rope (713) bypasses the pulley (712) and is connected to the driving mechanism (2).

9. The stirring device according to claim 7, characterized in that A reinforcing rod (73) is further arranged on the main body (7). One end of the reinforcing rod (73) is connected to the main body (7), and the other end is connected to the guide rod (72).

10. The stirring device according to claim 1, characterized in that, A slurry spraying hole is provided on the outer peripheral surface of the stirring rod (3). A through hole (121) is provided through the driven wheel (12). A slurry conveying channel (32) is provided on the stirring rod (3) corresponding to the through hole (121). The through hole (121) is configured to allow a slurry conveying pipe (9) to be inserted therein. The slurry conveying pipe (9) is used to inject slurry into the slurry conveying channel (32) and spray it out from the slurry spraying hole.

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