Heavy concrete mixer

Abstract

The utility model relates to the technical field of heavy working machinery, in particular to a heavy concrete mixer. Comprising a placing plate, a plurality of supporting legs are fixed to the bottom of the placing plate, a stirring barrel is fixed to the top of the placing plate, a discharging opening is formed in the inner side of the bottom end of the stirring barrel, a barrel cover is clamped to the top of the stirring barrel, and two connecting mechanisms are arranged at the top end of the outer side of the stirring barrel and used for clamping the stirring barrel and the barrel cover; a feeding port is formed in the inner side of the top of the barrel cover, and a fixed motor is further fixed to the top of the barrel cover. According to the heavy concrete mixer provided by the utility model, the clamping mechanism allows the rotating roller to be quickly, simply and conveniently detached from the mixing roller when needed, so that the downtime and the maintenance cost can be obviously reduced for daily maintenance, inspection and troubleshooting of equipment; and through the connection of the clamping mechanism, different types of rotating sticks can be replaced according to different stirring requirements, so that the flexibility and adaptability of the equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of heavy-duty machinery technology, and in particular to a heavy-duty concrete mixer. Background Technology

[0002] Heavy machinery generally refers to construction machinery, including tower cranes, static pile drivers, construction elevators, submersible drilling rigs, concrete mixing plants, crawler excavators, crawler bulldozers, crawler cranes, diesel pile drivers, road rollers, rotary drilling rigs, high-speed winches, vibratory pile drivers (static pressure vibratory) extractors, high-pressure rotary shotcrete machines, and concrete mixers. Heavy machinery is diverse, with concrete mixers being a common type, widely used in construction.

[0003] For example, Chinese utility model patent (CN108453897A) discloses a heavy-duty concrete mixer, including a mixing box. A first motor is fixedly mounted on the upper surface of the mixing box. A rotating rod is fixedly connected to the output end of the first motor, and the end of the rotating rod away from the first motor passes through the mixing box and extends into the interior of the mixing box. A mixing rod is fixedly connected to the outer surface of the rotating rod. A balance plate is fixedly connected to the inner wall of the mixing box. Two symmetrical guide tilting rods are fixedly connected to the inner wall of the mixing box. The end of the guide tilting rod away from the mixing box is fixedly connected to the upper surface of the balance plate. A placement plate is fixedly connected to the bottom of the left side of the mixing box, and a water pump is fixedly connected to the upper surface of the placement plate. A water pumping pipe is fixedly connected to the output end of the water pump.

[0004] When using the above technology, the following technical problems were found in the existing technology: the output end of the above mixer motor is fixedly connected to the rotating rod, and it is difficult to disassemble the rotating rod when maintaining, inspecting and troubleshooting the equipment; it is also difficult to meet different mixing requirements or replace different types of rotating rods. Therefore, we designed a heavy-duty concrete mixer to provide another technical solution to the above technical problems. Utility Model Content

[0005] Based on this, it is necessary to provide a heavy-duty concrete mixer to address the above-mentioned technical problems. The snap-fit ​​mechanism allows the rotating roller to be quickly and easily removed from the mixing roller when needed, which can significantly reduce downtime and maintenance costs for daily maintenance, inspection and troubleshooting of the equipment. Through the snap-fit ​​mechanism, different types of rotating rollers can be replaced according to different mixing needs, which improves the flexibility and adaptability of the equipment.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A heavy-duty concrete mixer includes a placement plate with multiple support legs fixed to its bottom and a mixing drum fixed to its top. A discharge port is located on the inner side of the bottom of the mixing drum, and a lid is snapped onto the top of the mixing drum. Two connecting mechanisms are located at the top outer side of the mixing drum for engaging the mixing drum and the lid. A feed inlet is located on the inner side of the top of the lid, and a fixed motor is also fixed to the top of the lid. A rotating roller is fixed to the output end of the fixed motor and is rotatably connected to the lid. A mixing roller is slidably connected to the inner side of the rotating roller, and a snapping mechanism is provided on the rotating roller for securing the mixing roller.

[0008] In a preferred embodiment of the heavy-duty concrete mixer provided by this utility model, the clamping mechanism includes a transmission roller, a threaded rod, a first sliding plate, a rotating plate, a clamping plate, and a guide roller. The transmission roller is rotatably connected to the inner side of the rotating roller. Threaded rods are fixed to both sides of the transmission roller, with opposite thread directions. First sliding plates are threadedly connected to the outer sides of both threaded rods, and both first sliding plates are slidably connected to the rotating roller. A rotating plate is rotatably connected to one side of the inner side of the rotating roller, and the rotating plate is fixed to one of the threaded rods. Clamping plates are fixed to the bottom of both first sliding plates, and both clamping plates are slidably connected to the rotating roller. Guide rollers are slidably connected to the inner sides of both ends of the two clamping plates, and both guide rollers are fixedly connected to the rotating roller.

[0009] In a preferred embodiment of the heavy-duty concrete mixer provided by this utility model, a snap-fit ​​block is fixed to the top of the mixing roller, the snap-fit ​​block is snapped into the rotating roller, an annular groove is provided on the inner side of the top of the mixing roller, and the clamping plate is snapped into the mixing roller through the annular groove.

[0010] In a preferred embodiment of the heavy-duty concrete mixer provided by this utility model, the connecting mechanism includes a first fixed plate, a first locking roller, a sliding rod, a second sliding plate, a second locking roller, a lifting rod, a guide groove, and a spring. Two first fixed plates are fixed to the top of the outer side of the mixing drum, and two first locking rollers are fixed to the outer side of the drum cover. The first fixed plates are locked to the first locking rollers. A sliding rod is slidably connected to the inner side of the first fixed plate. A second sliding plate is fixed to one end of the sliding rod, and the second sliding plate is slidably connected to the first fixed plate. Two second locking rollers are fixed to one end of the second sliding plate, and the second locking rollers are locked to the first locking rollers. A lifting rod is fixed to the other end of the sliding rod. Guide grooves are provided on the inner sides of both sides of the second sliding plate. Springs are fixed to the top and bottom ends of the second sliding plate near the sliding rod. Both springs are fixedly connected to the first fixed plate.

[0011] In a preferred embodiment of the heavy-duty concrete mixer provided by this utility model, a third locking roller is slidably connected to the inner side of the first fixing plate, and two locking grooves are opened on the inner side of the lifting rod. The third locking roller is locked to the lifting rod through the locking grooves.

[0012] In a preferred embodiment of the heavy-duty concrete mixer provided by this utility model, an inner liner is slidably connected to the inner side of the mixing drum, and two handles are fixed to the top of the outer side of the inner liner, the handles being engaged with the mixing drum.

[0013] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0014] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0015] This utility model provides a heavy-duty concrete mixer with a snap-fit ​​mechanism that allows the rotating roller to be quickly and easily removed from the mixing roller when needed. This significantly reduces downtime and maintenance costs for daily maintenance, inspection, and troubleshooting of the equipment. The snap-fit ​​mechanism also allows for the replacement of different types of rotating rollers according to different mixing requirements, improving the flexibility and adaptability of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the bucket lid and the first locking rod of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the rotating roller and the transmission roller of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the stirring roller and the annular groove of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the sliding rod and the second sliding plate of this utility model;

[0022] Figure 6 This utility model Figure 5Enlarged diagram of point A.

[0023] In the diagram: 1. Placement plate; 2. Support leg; 3. Mixing tank; 4. Discharge port; 5. Tank lid; 6. Feed inlet; 7. Fixed motor; 8. Rotating roller; 9. Mixing roller; 10. Inner liner; 11. Transmission roller; 12. Threaded rod; 13. First sliding plate; 14. Rotating plate; 15. Clamping plate; 16. Guide roller; 17. Snap-fit ​​block; 18. Annular groove; 19. First fixed plate; 20. First snap-fit ​​roller; 21. Sliding rod; 22. Second sliding plate; 23. Second snap-fit ​​roller; 24. Lifting rod; 25. Guide groove; 26. Spring; 27. Third snap-fit ​​roller; 28. Snap-fit ​​groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] As described in the background section, the output end of the aforementioned mixer motor is fixedly connected to the rotating rod. Disassembling the rotating rod is difficult during equipment maintenance, inspection, and troubleshooting. It is also difficult to meet different mixing requirements or replace different types of rotating rods.

[0026] To solve this technical problem, this utility model provides a heavy-duty concrete mixer.

[0027] For details, please refer to Figures 1-6 A heavy-duty concrete mixer specifically includes: a placement plate 1, multiple support legs 2 fixed to the bottom of the placement plate 1, a mixing drum 3 fixed to the top of the placement plate 1, a discharge port 4 provided on the inner side of the bottom end of the mixing drum 3, a drum cover 5 snapped onto the top of the mixing drum 3, two connecting mechanisms provided on the top of the outer side of the mixing drum 3 for snapping the mixing drum 3 and the drum cover 5, a feed port 6 provided on the inner side of the top of the drum cover 5, a fixed motor 7 fixed to the top of the drum cover 5, a rotating roller 8 fixed to the output end of the fixed motor 7, the rotating roller 8 being rotatably connected to the drum cover 5, a mixing roller 9 being slidably connected to the inner side of the rotating roller 8, and a snapping mechanism provided on the rotating roller 8 for fixing the mixing roller 9.

[0028] The present invention provides a heavy-duty concrete mixer with a snap-fit ​​mechanism that allows the rotating roller 8 to be quickly and easily removed from the mixing roller 9 when needed. This significantly reduces downtime and maintenance costs for daily maintenance, inspection, and troubleshooting of the equipment. The snap-fit ​​mechanism also allows for the replacement of different types of rotating rollers 8 according to different mixing requirements, thus improving the flexibility and adaptability of the equipment.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] Example 1

[0032] Reference Figures 1-4 A heavy-duty concrete mixer includes a placement plate 1, with multiple support legs 2 fixed to the bottom of the placement plate 1, a mixing drum 3 fixed to the top of the placement plate 1, a discharge port 4 provided on the inner side of the bottom end of the mixing drum 3, a lid 5 snapped onto the top of the mixing drum 3, two connecting mechanisms provided on the top of the outer side of the mixing drum 3 for snapping the mixing drum 3 and the lid 5, a feed port 6 provided on the inner side of the top of the lid 5, a fixed motor 7 fixed to the top of the lid 5, a rotating roller 8 fixed to the output end of the fixed motor 7, the rotating roller 8 being rotatably connected to the lid 5, a mixing roller 9 being slidably connected to the inner side of the rotating roller 8, and a snapping mechanism provided on the rotating roller 8 for fixing the mixing roller 9.

[0033] The clamping mechanism includes a transmission roller 11, a threaded rod 12, a first sliding plate 13, a rotating plate 14, a clamping plate 15, and a guide roller 16. The transmission roller 11 is rotatably connected to the inner side of the rotating roller 8. Threaded rods 12 are fixed on both sides of the transmission roller 11. The threads of the two threaded rods 12 have opposite directions. The outer sides of the two threaded rods 12 are threadedly connected to the first sliding plate 13. The two first sliding plates 13 are slidably connected to the rotating roller 8. The rotating plate 14 is rotatably connected to one side of the inner side of the rotating roller 8. The rotating plate 14 is fixed to one of the threaded rods 12. The bottom of the two first sliding plates 13 is fixed to the clamping plate 15. The two clamping plates 15 are slidably connected to the rotating roller 8. The inner sides of both ends of the two clamping plates 15 are slidably connected to the guide roller 16. The two guide rollers 16 are fixedly connected to the rotating roller 8.

[0034] The snap-fit ​​mechanism allows the rotating roller 8 to be quickly and easily removed from the mixing roller 9 when needed, which can significantly reduce downtime and maintenance costs for daily maintenance, inspection and troubleshooting of the equipment; the snap-fit ​​mechanism can be used to connect different types of rotating rollers 8 according to different mixing needs, which improves the flexibility and adaptability of the equipment.

[0035] A snap-fit ​​block 17 is fixed to the top of the stirring roller 9. The snap-fit ​​block 17 is snapped into the rotating roller 8. When the rotating roller 8 rotates, it can drive the snap-fit ​​block 17 to rotate, so that the stirring roller 9, which is fixedly connected to the snap-fit ​​block 17, also rotates. An annular groove 18 is provided on the inner side of the top of the stirring roller 9. The clamping plate 15 is snapped into the stirring roller 9 through the annular groove 18. The opening of the annular groove 18 allows the clamping plate 15 to be better snapped into the stirring roller 9.

[0036] Example 2

[0037] Reference Figure 1 , Figure 5 and Figure 6 A heavy-duty concrete mixer has a connecting mechanism comprising a first fixed plate 19, a first locking roller 20, a sliding rod 21, a second sliding plate 22, a second locking roller 23, a lifting rod 24, a guide groove 25, and a spring 26. Two first fixed plates 19 are fixed to the top of the outer side of the mixing drum 3, and two first locking rollers 20 are fixed to the outer side of the drum cover 5. The first fixed plates 19 are locked to the first locking rollers 20. The sliding rod 21 is slidably connected to the inner side of the first fixed plate 19. A second sliding plate 22 is fixed to one end of the sliding rod 21 and is slidably connected to the first fixed plate 19. Two second locking rollers 23 are fixed to one end of the second sliding plate 22 and are locked to the first locking roller 20. A lifting rod 24 is fixed to the other end of the sliding rod 21. Guide grooves 25 are provided on the inner sides of both sides of the second sliding plate 22. Springs 26 are fixed to the top and bottom of the second sliding plate 22 near the sliding rod 21. Both springs 26 are fixedly connected to the first fixed plate 19.

[0038] The connecting mechanism allows the lid 5 to be quickly and easily connected to or disconnected from the mixing tank 3. This design simplifies the operation process and reduces the time and effort required for manual operation.

[0039] The inner side of the first fixing plate 19 is slidably connected to a third locking rod 27. The inner side of the lifting rod 24 has two locking slots 28. The third locking rod 27 is locked to the lifting rod 24 through the locking slots 28. The design of the third locking rod 27 and the locking slots 28 can better fix the lifting rod 24, thereby facilitating the use of the connecting mechanism.

[0040] The inner liner 10 is slidably connected to the inner side of the mixing tank 3. The design of the inner liner 10 makes it easier to clean the inside of the mixer. Two handles are fixed to the top of the outer side of the inner liner 10. The handles are engaged with the mixing tank 3. The engagement of the handles with the mixing tank 3 allows the circular hole at the bottom of the inner liner 10 for material discharge to be better aligned with the discharge port 4, thus facilitating material discharge.

[0041] The usage process of the heavy-duty concrete mixer provided by this utility model is as follows: The concrete raw materials to be mixed are conveyed into the inner side of the inner tank 10 through the feed port 6. The fixed motor 7 is started. The output end of the fixed motor 7 drives the rotating roller 8 to rotate. Since the locking block 17 is locked with the rotating roller 8 and the locking block 17 is fixedly connected to the mixing roller 9, the rotation of the rotating roller 8 drives the locking block 17 to rotate, so that the mixing roller 9, which is fixedly connected to the locking block 17, also rotates to mix the concrete raw materials.

[0042] To prevent concrete residue on the inner wall of the inner liner 10 from affecting the mixing effect, when cleaning the inner wall of the inner liner 10, the third locking rod 27 is pulled upward and the lifting rod 24 is pulled to one side. Since the lifting rod 24 is fixedly connected to the sliding rod 21, the movement of the lifting rod 24 causes the sliding rod 21 to move, which in turn causes the second sliding plate 22, which is fixedly connected to the sliding rod 21, to move as well. Since the second sliding plate 22 is fixedly connected to the second locking rod 23, the movement of the second sliding plate 22 causes the second locking rod 23 to move. At this time, the second locking rod 23 is no longer locked to the first locking rod 20. At this time, the spring 26, which is fixedly connected to the second sliding plate 22, is compressed by the second sliding plate 22. As the lifting rod 24 moves outward, the third locking rod 27 is locked to the locking groove 28 located on the inner side. At this time, the lifting rod 24 is fixed, and the first locking rod 20 can be separated from the first fixed plate 19.

[0043] At this time, the bucket cover 5 is lifted by the crane in conjunction with the top ring of the bucket cover 5. This allows the inner liner 10 to be separated from the mixing tank 3, making it easier to clean the inner wall of the inner liner 10 and prevent concrete residue from affecting the next mixing. Since the rotating roller 8 is rotatably connected to the bucket cover 5 and the clamping plate 15 is engaged with the mixing roller 9 through the annular groove 18, the movement of the bucket cover 5 drives the movement of the mixing roller 9.

[0044] To facilitate the inspection or replacement of the stirring roller 9, the dust plug that is interference-fitted with the rotating roller 8 and located on one side of the rotating plate 14 is pulled out. Then, the rotating plate 14 is rotated using a tool. Since the rotating plate 14 is fixedly connected to the threaded rod 12, and the two threaded rods 12 are fixedly connected through the transmission roller 11, the rotation of the rotating plate 14 drives the two threaded rods 12 to rotate. Since the threaded rods 12 are threadedly connected to the first sliding plate 13 and the threads of the two threaded rods 12 are opposite, the two first sliding plates 13 move away from each other as the threaded rods 12 rotate. Since the first sliding plate 13 is fixedly connected to the clamping plate 15 and the clamping plate 15 is slidably connected to the rotating roller 8, the movement of the first sliding plate 13 drives the clamping plate 15 to move, thereby causing the two clamping plates 15 to move away from each other. Thus, the clamping plate 15 is no longer engaged with the stirring roller 9 through the annular groove 18. At this time, the stirring roller 9 can be disassembled, making it convenient to inspect or replace the stirring roller 9.

[0045] The snap-fit ​​mechanism allows the rotating roller 8 to be quickly and easily removed from the mixing roller 9 when needed, which can significantly reduce downtime and maintenance costs for daily maintenance, inspection and troubleshooting of the equipment; the snap-fit ​​mechanism can be used to connect different types of rotating rollers 8 according to different mixing needs, which improves the flexibility and adaptability of the equipment.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heavy-duty concrete mixer, characterized in that, The device includes a placement plate (1), with multiple support legs (2) fixed at the bottom of the placement plate (1), a mixing tank (3) fixed at the top of the placement plate (1), a discharge port (4) provided on the inner side of the bottom end of the mixing tank (3), a bucket lid (5) snapped onto the top of the mixing tank (3), two connecting mechanisms provided on the top of the outer side of the mixing tank (3), the connecting mechanisms being used to snap the mixing tank (3) and the bucket lid (5), a feed inlet (6) provided on the inner side of the top of the bucket lid (5), a fixed motor (7) also fixed on the top of the bucket lid (5), a rotating rod (8) fixed at the output end of the fixed motor (7), the rotating rod (8) being rotatably connected to the bucket lid (5), a stirring roller (9) being slidably connected on the inner side of the rotating rod (8), and a snapping mechanism provided on the rotating rod (8), the snapping mechanism being used to fix the stirring roller (9).

2. A heavy-duty concrete mixer according to claim 1, characterized in that, The clamping mechanism includes a transmission roller (11), a threaded rod (12), a first sliding plate (13), a rotating plate (14), a clamping plate (15), and a guide roller (16). The transmission roller (11) is rotatably connected to the inner side of the rotating roller (8). Threaded rods (12) are fixed on both sides of the transmission roller (11). The threads of the two threaded rods (12) have opposite directions. The outer sides of the two threaded rods (12) are threadedly connected to the first sliding plate (13). The two first sliding plates (13) are... All are slidably connected to the rotating rod (8). A rotating plate (14) is rotatably connected to one side of the inner side of the rotating rod (8). The rotating plate (14) is fixed to one of the threaded rods (12). A clamping plate (15) is fixed to the bottom of each of the two first sliding plates (13). Both clamping plates (15) are slidably connected to the rotating rod (8). Guide rods (16) are slidably connected to the inner sides of both ends of the two clamping plates (15). Both guide rods (16) are fixedly connected to the rotating rod (8).

3. A heavy-duty concrete mixer according to claim 2, characterized in that, The top of the stirring roller (9) is fixed with a snap-fit ​​block (17), which snaps into the rotating rod (8). An annular groove (18) is provided on the inner side of the top of the stirring roller (9), and the clamping plate (15) snaps into the stirring roller (9) through the annular groove (18).

4. A heavy-duty concrete mixer according to claim 1, characterized in that, The connecting mechanism includes a first fixed plate (19), a first locking rod (20), a sliding rod (21), a second sliding plate (22), a second locking rod (23), a lifting rod (24), a guide groove (25), and a spring (26). Two first fixed plates (19) are fixed to the top of the outer side of the mixing tank (3), and two first locking rods (20) are fixed to the outer side of the tank lid (5). The first fixed plate (19) is locked to the first locking rod (20). The sliding rod (21) is slidably connected to the inner side of the first fixed plate (19), and a second sliding rod (23) is fixed to one end of the sliding rod (21). The second sliding plate (22) is slidably connected to the first fixed plate (19). Two second locking rods (23) are fixed at one end of the second sliding plate (22). The second locking rods (23) are locked to the first locking rods (20). A lifting rod (24) is fixed at the other end of the sliding rod (21). Guide grooves (25) are provided on the inner sides of both sides of the second sliding plate (22). Springs (26) are fixed at the top and bottom ends of the second sliding plate (22) near the sliding rod (21). Both springs (26) are fixedly connected to the first fixed plate (19).

5. A heavy-duty concrete mixer according to claim 4, characterized in that, The inner side of the first fixing plate (19) is slidably connected to a third locking rod (27), and the inner side of the lifting rod (24) has two locking grooves (28). The third locking rod (27) is locked to the lifting rod (24) through the locking grooves (28).

6. A heavy-duty concrete mixer according to claim 1, characterized in that, The inner side of the mixing tank (3) is slidably connected to the inner liner (10), and two handles are fixed at the top of the outer side of the inner liner (10), and the handles are engaged with the mixing tank (3).

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