Concrete mixing device for water conservancy and hydropower

Abstract

The utility model relates to the technical field of concrete mixing devices, in particular to a concrete mixing device for water conservancy and hydropower. The bottom end of the stirring barrel is designed to be funnel-shaped, so that concrete can be gathered towards the upper part of the discharging pipe along the inclined surface of the inner bottom wall of the stirring barrel in the discharging process, and raw materials in the stirring barrel can be fully discharged through the discharging pipe; an auger is driven by a rotating shaft to rotate anticlockwise so that concrete in a discharging pipe can be discharged smoothly, and meanwhile, under the action of two gears and a reciprocating lead screw, a movable rod can drive a mounting ring to reciprocate up and down through a circular ring and a fixed rod in the discharging process, so that the discharging efficiency is improved. And therefore, the mounting ring drives the plurality of poke rods to rotate and move up and down in a reciprocating manner to poke concrete above the discharging pipe, the concrete is prevented from being accumulated above the discharging pipe, the smoothness of the concrete in the discharging process is guaranteed, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete mixing devices, and in particular to a concrete mixing device for water conservancy and hydropower. Background Technology

[0002] Concrete mixing is a process of mixing materials such as cement, lime, and water until they are homogeneous. In water conservancy and hydropower projects, concrete is needed to strengthen the strength and durability of equipment. When making concrete, a mixing device is usually used to mix the concrete raw materials to ensure the uniformity of the concrete.

[0003] According to the search, the Chinese patent "Concrete Mixing Device" authorized announcement number "CN219543639U" is equipped with a material guiding mechanism, a mixing rod and a scraper, which can mix and scrape the concrete inside the mixing tank, thereby reducing the residue on the inner wall of the mixing tank. Through the transmission action of the conveying module, the rotating spiral blades can rotate and discharge the concrete inside the discharge port, thereby reducing the possibility of concrete clogging inside the discharge port.

[0004] Although the bolt blades used in the above application can discharge concrete from the outlet, some concrete will accumulate in the mixing drum during the discharge process and cannot smoothly enter the outlet, thus affecting the discharge operation and reducing work efficiency.

[0005] Therefore, a concrete mixing device for water conservancy and hydropower is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a concrete mixing device for water conservancy and hydropower to solve the above-mentioned problems. It improves the problem that during the discharge process, some concrete will accumulate in the mixing drum and cannot smoothly enter the discharge port, thus affecting the discharge operation of concrete and reducing work efficiency.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a concrete mixing device for water conservancy and hydropower, comprising: a mixing drum, a motor fixedly connected to the top of the mixing drum, a rotating shaft fixedly connected to the output shaft of the motor, the bottom end of the rotating shaft penetrating into the interior of the mixing drum, a plurality of mixing rods fixedly connected to the middle of the surface of the rotating shaft, and a feeding mechanism provided inside the mixing drum.

[0008] The feeding mechanism includes a mounting ring slidably connected to the lower end of the rotating shaft surface. The bottom of the mixing tank is funnel-shaped, and a feeding pipe is connected to the bottom of the mixing tank. The bottom of the rotating shaft extends into the feeding pipe and is fixedly connected to an auger. Multiple actuating rods arranged in a ring are fixedly connected to the surface of the mounting ring. A circular ring is rotatably connected to the upper end of the rotating shaft surface. A fixing rod is slidably connected to the bottom end of the circular ring. The bottom end of the fixing rod is fixedly connected to the surface of the mounting ring. A limiting rod is fixedly connected to the lower end of the rotating shaft surface. The surface of the limiting rod is slidably connected to the inner wall of the mounting ring.

[0009] Preferably, the feeding mechanism further includes two gears meshing together. The inner wall of one gear is fixedly connected to the surface of the motor output shaft, and the bottom end of the other gear is rotatably connected to a reciprocating screw. A one-way bearing is embedded in the bottom end of the other gear, and the surface of the reciprocating screw is fixedly connected to the inner edge of the one-way bearing. A moving rod is provided on the surface of the reciprocating screw, and one end of the moving rod is fixedly connected to the surface of a ring. This facilitates the moving rod to drive the mounting ring to move up and down reciprocally through the ring and the fixed rod during the feeding process. This causes the mounting ring to drive multiple actuating rods to move up and down reciprocally while rotating, thus agitating the concrete above the feeding pipe. This prevents concrete from accumulating above the feeding pipe, ensuring the smooth flow of concrete during the feeding process and improving work efficiency.

[0010] Preferably, a sealing plate is slidably connected to the lower end of the rotating shaft surface, an electric push rod is fixedly connected to the upper end of the rotating shaft surface, a connecting rod is fixedly connected to the bottom end of the electric push rod, and the bottom end of the connecting rod is fixedly connected to the top end of the sealing plate. This facilitates sealing the discharge pipe during concrete mixing, preventing incompletely mixed raw materials from entering the discharge pipe, thereby ensuring the mixing effect of the concrete.

[0011] Preferably, a round rod is fixedly connected to the surface of the rotating shaft, and a scraper is fixedly connected to the other end of the round rod. The other side of the scraper is in contact with the inner wall of the mixing drum. This facilitates better scraping of the raw materials on the inner wall of the mixing drum, improves the mixing effect of the concrete raw materials, and ensures that the concrete is fully discharged into the mixing drum.

[0012] Preferably, both the top and bottom ends of the actuating lever are fixedly connected to mounting rods, and the vertical cross-section of the mounting rods is a right-angled triangle. This reduces the resistance when the actuating lever moves up and down.

[0013] Preferably, the bottom end of the ring has an annular groove, and the top end of the fixing rod is slidably connected to the inner wall of the annular groove. This facilitates limiting the rotation of the fixing rod and also allows the ring to better drive the fixing rod to move up and down.

[0014] Preferably, the top of the sealing plate forms an angle with the horizontal plane. This prevents raw materials from remaining above the sealing plate during the feeding process.

[0015] The beneficial effects of this utility model are:

[0016] 1. In the above-mentioned feeding mechanism, the bottom of the mixing drum is designed as a funnel, which helps the concrete to accumulate along the inclined surface of the bottom wall of the mixing drum towards the top of the feeding pipe during the feeding process. This ensures that the raw materials in the mixing drum can be fully fed through the feeding pipe. During the feeding process, the rotating shaft drives the auger to rotate counterclockwise, which helps to smoothly discharge the concrete in the feeding pipe. At the same time, under the action of two gears and reciprocating screws, the moving rod drives the mounting ring to move up and down through the ring and fixed rod during the feeding process. This causes the mounting ring to drive multiple actuating rods to move up and down while rotating, thus agitating the concrete above the feeding pipe and preventing the concrete from accumulating above the feeding pipe. This ensures the smoothness of the concrete feeding process and improves work efficiency.

[0017] 2. The installation of the sealing plate is beneficial for sealing the discharge pipe during concrete mixing, preventing unmixed raw materials from entering the discharge pipe, thereby ensuring the mixing effect of the concrete.

[0018] 3. By setting up a one-way bearing, it is beneficial to ensure that when the device is mixing concrete, the mounting ring and multiple actuating rods remain inside the discharge pipe, thus ensuring the stability of the device operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the mixing tank of this utility model;

[0021] Figure 3 This is an exploded view of the sealing plate, mounting ring, and rotating shaft of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the ring, the fixed rod, and the movable rod of this utility model;

[0023] Figure 5 This is a schematic diagram of the toggle lever and mounting ring structure of this utility model.

[0024] In the diagram: 1. Mixing tank; 2. Motor; 3. Rotating shaft; 4. Mixing rod; 5. Feeding mechanism; 51. Feeding pipe; 52. Screw; 53. Mounting ring; 54. Actuating rod; 55. Circular ring; 56. Fixing rod; 57. Limiting rod; 58. Annular groove; 59. Gear; 510. Reciprocating screw; 511. One-way bearing; 512. Moving rod; 513. Sealing plate; 514. Connecting rod; 515. Electric push rod; 516. Round rod; 517. Scraper; 518. Mounting rod. Detailed Implementation

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

[0026] In practical implementation: such as Figure 1-5 As shown, a concrete mixing device for water conservancy and hydropower includes: a mixing drum 1, a motor 2 fixedly connected to the top of the mixing drum 1, a rotating shaft 3 fixedly connected to the output shaft of the motor 2, the bottom end of the rotating shaft 3 penetrating into the interior of the mixing drum 1, a plurality of mixing rods 4 fixedly connected to the middle of the surface of the rotating shaft 3, and a feeding mechanism 5 provided inside the mixing drum 1.

[0027] The feeding mechanism 5 includes a mounting ring 53 slidably connected to the lower end of the surface of the rotating shaft 3. The bottom of the mixing tank 1 is funnel-shaped. The bottom of the mixing tank 1 is connected to a feeding pipe 51. The bottom of the rotating shaft 3 extends into the feeding pipe 51 and is fixedly connected to an auger 52. Multiple actuating rods 54 arranged in a ring are fixedly connected to the surface of the mounting ring 53. A ring 55 is rotatably connected to the upper end of the surface of the rotating shaft 3. A fixing rod 56 is slidably connected to the bottom end of the ring 55. The bottom end of the fixing rod 56 is fixedly connected to the surface of the mounting ring 53. A limiting rod 57 is fixedly connected to the lower end of the surface of the rotating shaft 3. The surface of the limiting rod 57 is slidably connected to the inner wall of the mounting ring 53.

[0028] In this embodiment, the top of the mixing tank 1 is provided with a feed inlet, and a baffle is provided at the opening of the feed inlet. After the raw materials are put into the feed inlet, a cover plate is installed at the bottom of the discharge pipe 51. When mixing concrete, the cover plate can be used to block the discharge pipe 51. The mounting ring 53 is set above the auger 52. When the motor 2 is started by the controller to drive the rotating shaft 3 to rotate, the mounting ring 53 will rotate synchronously under the action of the limit rod 57.

[0029] like Figure 4As shown, the feeding mechanism 5 also includes two gears 59, which are meshed together. The inner wall of one gear 59 is fixedly connected to the surface of the output shaft of the motor 2. The bottom end of the other gear 59 is rotatably connected to a reciprocating screw 510. The bottom end of the other gear 59 is embedded with a one-way bearing 511. The surface of the reciprocating screw 510 is fixedly connected to the inner edge of the one-way bearing 511. A moving rod 512 is provided on the surface of the reciprocating screw 510. One end of the moving rod 512 is fixedly connected to the surface of the ring 55.

[0030] In this embodiment, the outer edge of the one-way bearing 511 is fixedly connected to the inner wall of another gear 59. When the output shaft of the motor 2 drives the rotating shaft 3 to rotate clockwise, the rotating shaft 3 will drive the other gear 59 to rotate synchronously through one of the gears 59. Under the action of the one-way bearing 511, the reciprocating screw 510 does not rotate. When the output shaft of the motor 2 drives the rotating shaft 3 to rotate counterclockwise, the reciprocating screw 510 will rotate under the action of the rotating shaft 3, the two gears 59 and the one-way bearing 511. The reciprocating screw 510 is in the form of two threaded grooves with the same pitch and opposite directions of rotation, and the two ends are connected by a transition curve. Through the rotation of the reciprocating screw 510, the side of the spiral groove pushes the slider placed in the spiral groove to make axial reciprocating motion. Therefore, when the reciprocating screw 510 rotates, it will drive the ring 55 to move up and down reciprocally through the moving rod 512.

[0031] like Figure 2 and Figure 3 As shown, a sealing plate 513 is slidably connected to the lower end of the surface of the rotating shaft 3, and an electric push rod 515 is fixedly connected to the upper end of the surface of the rotating shaft 3. A connecting rod 514 is fixedly connected to the bottom end of the electric push rod 515, and the bottom end of the connecting rod 514 is fixedly connected to the top end of the sealing plate 513. The top end of the sealing plate 513 forms an angle with the horizontal plane.

[0032] In this embodiment, the sealing plate 513 is disposed above the mounting ring 53, and the diameter of the sealing plate 513 matches the inner diameter of the feed pipe 51. When the sealing plate 513 moves downward to the lowest height, the sealing plate 513 will seal the top of the feed pipe 51.

[0033] like Figure 2 As shown, a round rod 516 is fixedly connected to the surface of the rotating shaft 3, and a scraper 517 is fixedly connected to the other end of the round rod 516. The other side of the scraper 517 is in contact with the inner wall of the mixing tank 1.

[0034] In this embodiment, the overall shape of the scraper 517 matches the shape of the inner wall of the mixing tank 1. During the mixing and feeding operations, the rotating shaft 3 drives the scraper 517 to rotate, and the scraper 517 scrapes off the raw materials on the inner wall of the mixing tank 1.

[0035] like Figure 5As shown, the top and bottom ends of the lever 54 are fixedly connected to mounting rods 518, and the vertical cross section of the mounting rod 518 is a right triangle.

[0036] In this embodiment, the mounting rod 518 reduces the resistance when the lever 54 moves up and down.

[0037] like Figure 4 As shown, an annular groove 58 is provided at the bottom end of the ring 55, and the top end of the fixing rod 56 is slidably connected to the inner wall of the annular groove 58.

[0038] In this embodiment, when the ring 55 moves up and down, it will drive the fixing rod 56 to move up and down, thereby causing the fixing rod 56 to drive the mounting ring 53 to move up and down.

[0039] In use, the raw materials are fed into the mixing drum 1 through the feed inlet. The controller starts the motor 2, causing its output shaft to drive multiple mixing rods 4 clockwise via the rotating shaft 3 to mix the concrete raw materials. Simultaneously, the auger 52, mounting ring 53, sealing plate 513, fixing rod 56, connecting rod 514, electric push rod 515, and two gears 59 rotate synchronously, causing the scraper 517 to rotate synchronously against the inner wall of the mixing drum 1. When discharging the mixed concrete, the cover plate at the bottom of the discharge pipe 51 is opened, and the controller starts the electric push rod 515, which, via the connecting rod 514, moves the sealing plate 513 upwards to its maximum distance, releasing the seal on the discharge pipe 51. At this time, some raw materials will enter the discharge pipe 51, and... Under the action of the inclined surface of the bottom wall inside the mixing drum 1, the concrete will gather above the discharge pipe 51. At the same time, the motor 2 is started by the controller, and the output shaft of the motor 2 drives the rotating shaft 3 to rotate counterclockwise. The rotating shaft 3 drives the auger 52 to rotate counterclockwise, which will discharge the concrete in the discharge pipe 51. During the discharge process, the scraper 517 rotates to scrape the raw material on the inner wall of the mixing drum 1. At the same time, under the action of the two gears 59, the reciprocating screw 510 will rotate, which will cause the moving rod 512 to drive the ring 55 to move up and down reciprocally. And through the fixed rod 56, the mounting ring 53 drives multiple actuating rods 54 to move up and down reciprocally while rotating, to move the concrete above the discharge pipe 51 and prevent the concrete from accumulating above the discharge pipe 51.

[0040] It should be noted that the motor 2 and electric actuator 515 mentioned above are devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the motor 2 and electric actuator 515 can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A concrete mixing device for water conservancy and hydropower, characterized in that, include: A mixing tank (1) is provided with a motor (2) fixedly connected to the top of the mixing tank (1), and a rotating shaft (3) fixedly connected to the output shaft of the motor (2). The bottom end of the rotating shaft (3) extends into the interior of the mixing tank (1). Multiple sets of stirring rods (4) are fixedly connected to the middle of the surface of the rotating shaft (3). A feeding mechanism (5) is provided inside the mixing tank (1). The feeding mechanism (5) includes a mounting ring (53) slidably connected to the lower end of the surface of the rotating shaft (3). The bottom of the mixing tank (1) is funnel-shaped. The bottom of the mixing tank (1) is connected to a feeding pipe (51). The bottom of the rotating shaft (3) extends into the feeding pipe (51) and is fixedly connected to an auger (52). The surface of the mounting ring (53) is fixedly connected to a plurality of ring-shaped actuating rods (54). The upper end of the surface of the rotating shaft (3) is rotatably connected to a ring (55). The bottom end of the ring (55) is slidably connected to a fixing rod (56). The bottom end of the fixing rod (56) is fixedly connected to the surface of the mounting ring (53). The lower end of the surface of the rotating shaft (3) is fixedly connected to a limiting rod (57). The surface of the limiting rod (57) is slidably connected to the inner wall of the mounting ring (53).

2. The concrete mixing device for water conservancy and hydropower according to claim 1, characterized in that: The feeding mechanism (5) also includes two gears (59), which are meshed together. The inner wall of one gear (59) is fixedly connected to the surface of the output shaft of the motor (2). The bottom end of the other gear (59) is rotatably connected to a reciprocating screw (510). The bottom end of the other gear (59) is embedded with a one-way bearing (511). The surface of the reciprocating screw (510) is fixedly connected to the inner edge of the one-way bearing (511). A moving rod (512) is provided on the surface of the reciprocating screw (510). One end of the moving rod (512) is fixedly connected to the surface of the ring (55).

3. The concrete mixing device for water conservancy and hydropower according to claim 1, characterized in that: A sealing plate (513) is slidably connected to the lower end of the surface of the rotating shaft (3), and an electric push rod (515) is fixedly connected to the upper end of the surface of the rotating shaft (3). A connecting rod (514) is fixedly connected to the bottom end of the electric push rod (515), and the bottom end of the connecting rod (514) is fixedly connected to the top end of the sealing plate (513).

4. A concrete mixing device for water conservancy and hydropower according to claim 1, characterized in that: A round rod (516) is fixedly connected to the surface of the rotating shaft (3), and a scraper (517) is fixedly connected to the other end of the round rod (516). The other side of the scraper (517) is in contact with the inner wall of the mixing tank (1).

5. A concrete mixing device for water conservancy and hydropower according to claim 1, characterized in that: The top and bottom ends of the lever (54) are fixedly connected to mounting rods (518), and the vertical cross section of the mounting rod (518) is a right triangle.

6. A concrete mixing device for water conservancy and hydropower according to claim 1, characterized in that: The bottom end of the ring (55) is provided with an annular groove (58), and the top end of the fixing rod (56) is slidably connected to the inner wall of the annular groove (58).

7. A concrete mixing device for water conservancy and hydropower according to claim 3, characterized in that: The top of the sealing plate (513) forms an angle with the horizontal plane.

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