Concrete mixing equipment for high-cold region

Abstract

This invention provides a concrete insulation mixing device for high-altitude and cold regions, relating to the field of concrete mixing technology. It includes a base, a horizontal mixing tank fixedly installed on top of the base, and a belt drive. A mixing impeller is coaxially rotatably mounted inside the horizontal mixing tank and driven to rotate by the belt drive. One end of the mixing impeller extends to the outside of the horizontal mixing tank and is fixedly mounted with a flywheel to increase rotational inertia. An extension frame is fixedly welded to the base, and a centrifugal pump is fixedly mounted on the extension frame. The device also includes: a clutch assembly mounted on the extension frame for clutch control of kinetic energy recovery; and an energy storage assembly mounted on the extension frame for recovering the kinetic energy of the flywheel. This invention effectively recovers the inertial energy when the equipment stops and converts it into the power required for insulation, significantly reducing external energy consumption and improving the adaptability of the equipment and the stability of the concrete insulation effect under harsh conditions such as high altitude and cold regions without external power.

Description

Technical Field

[0001] This invention relates to the field of concrete mixing technology, and more particularly to a concrete insulation mixing device for high-altitude and cold regions. Background Technology

[0002] In high-altitude and cold regions, the low ambient temperature causes a rapid drop in the temperature of the concrete mixture, affecting its workability, strength development, and durability. To ensure concrete quality, the mixed materials typically require insulation or heating. Traditional insulation methods rely on a continuous external heat source, using a circulating heat medium (such as hot water or hot oil) within the mixing tank's jacket or internal pipes to maintain the concrete temperature. However, this method suffers from high continuous energy consumption, low thermal efficiency, and poor adaptability to construction sites without external power or with limited power.

[0003] Currently, concrete mixing equipment consumes a significant amount of energy during operation, as the motor or diesel engine driving the mixing shaft consumes a large amount of energy. When mixing is paused or the equipment is shut down, the mixing shaft and its auxiliary components continue to rotate due to inertia. This kinetic energy is typically dissipated through mechanical braking or idling, failing to be effectively utilized. If this inertial energy could be recovered and converted into power to drive the thermal circulation system, continuous circulation of the heat medium within the mixing tank could be achieved without increasing additional energy consumption, thereby maintaining the concrete temperature and achieving both energy saving and heat preservation.

[0004] Currently, there is no mature solution specifically designed for recovering the inertial kinetic energy of concrete mixing equipment and directly using it to drive the thermal circulation system. Although some construction machinery is equipped with kinetic energy recovery devices, they are mostly used for power generation or hydraulic energy storage, resulting in complex structures that are difficult to integrate directly with the insulation requirements of concrete. Furthermore, because the rotational speed of the mixing shaft continuously decreases during shutdown, the recovered energy output is unstable, and directly driving pump loads can easily lead to fluctuations in the circulation flow of the heat transfer medium, affecting the insulation effect. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies, which lack mature solutions for recovering the inertial kinetic energy of concrete mixing equipment and directly using it to drive the thermal circulation system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a concrete insulation mixing device for high-altitude and cold regions, comprising a base, a horizontal mixing tank and a belt drive fixedly installed on the top of the base, wherein a mixing impeller is coaxially rotatably installed inside the horizontal mixing tank and driven to rotate by the belt drive, one end of the mixing impeller extends to the outside of the horizontal mixing tank and is fixedly installed with a flywheel to increase the moment of inertia, an extension frame is fixedly welded to the base, and a centrifugal pump is fixedly installed on the extension frame, and further comprising: A clutch assembly mounted on the expansion frame for clutch control of kinetic energy recovery; An energy storage component installed on the extension frame is used to recover the kinetic energy of the flywheel. The energy storage component includes a housing and an energy storage disk. The housing is fixedly installed on the extension frame, and the energy storage disk is rotatably installed inside the housing. The shaft of the energy storage disk is connected to a clutch assembly, and a spring is fixedly installed between one end of the energy storage disk and its shaft for energy storage. A constant-speed assembly is installed between the energy storage component and the centrifugal pump to ensure uniform output of the recovered kinetic energy.

[0007] In at least some embodiments, the clutch assembly includes a first clutch disc and a second clutch disc, a transmission gear that meshes with a flywheel is rotatably mounted on the horizontal mixing tank, the shaft of the first clutch disc is fixedly connected to the shaft of the transmission gear, a spline sleeve slides inside the second clutch disc and a clutch shaft is fixedly inserted inside the spline sleeve, a chuck is rotatably mounted on the outer side of the second clutch disc, and a first hydraulic rod for driving the chuck to move linearly is fixedly mounted on the extension frame.

[0008] In at least some embodiments, both the first clutch disc and the second clutch disc are provided with clutch teeth that unfold into a trapezoidal shape.

[0009] In at least some embodiments, the outer circumference of the energy storage disk is provided with a plurality of positioning holes in a ring array, and a second hydraulic rod is fixedly installed at the outer end of the housing, and a pin adapted to the positioning holes is fixedly installed at the telescopic end of the second hydraulic rod.

[0010] In at least some embodiments, one end of the shaft of the energy storage disk extends to the outside of the housing and is fixedly mounted with a first gear. A second gear and a third gear are rotatably mounted on the housing. The second gear meshes with the first gear. The diameters of the first gear and the third gear are the same and larger than the diameter of the second gear.

[0011] In at least some embodiments, the constant speed component includes a constant speed shaft rotatably mounted on an extension frame. A fourth speed-changing gear connected to an energy storage component is fixedly mounted at one end of the constant speed shaft, and a drive bevel gear is fixedly mounted at the other end of the constant speed shaft. A fixed rotating sleeve and a moving rotating sleeve are rotatably mounted on the constant speed shaft. The moving rotating sleeve can move along the axial direction of the constant speed shaft. Multiple centrifugal rods are rotatably mounted on the fixed rotating sleeve. A centrifugal ball is fixedly mounted at the end of each centrifugal rod away from the fixed rotating sleeve. A connecting rod is rotatably connected between the moving rotating sleeve and the middle of the centrifugal rod. A return spring is fixedly mounted between the moving rotating sleeve and the fixed rotating sleeve.

[0012] In at least some embodiments, the connection between the centrifugal rod and the fixed-rotation sleeve and the constant-speed shaft is fixedly connected to a clamping block by a spring, and the greater the rotation angle of the centrifugal rod, the greater the clamping force on the centrifugal rod.

[0013] In at least some embodiments, a driven bevel gear that meshes with the driving bevel gear is fixedly mounted on the shaft of the centrifugal pump, and an annular metal heat pipe is embedded in the inner wall of the horizontal mixing tank for heat preservation and heating of the material. The input end of the centrifugal pump is connected to an external heat source and the output end is fixedly connected to the metal heat pipe.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows: This invention creatively recovers the inertial kinetic energy of the mixing impeller and flywheel at the end of concrete mixing operations and stores it via a clutch assembly and a spring in the energy storage assembly. When heat preservation is required, the stored mechanical energy is released and, after being stably output by a constant speed assembly, drives a centrifugal pump to power the heat preservation circulation system of the mixing tank. This process effectively recovers and reuses the inertial energy that would otherwise be wasted through braking, significantly reducing the external energy consumption required to maintain the concrete temperature, resulting in significant energy savings and aligning with the concept of green construction.

[0015] Traditional electric heating or continuous external heat source circulation insulation methods heavily rely on a stable external power supply. This invention utilizes the equipment's own kinetic energy for insulation drive, reducing or eliminating dependence on such continuous external energy sources. This makes the mixing equipment particularly suitable for construction sites in high-altitude and remote areas with weak power grid coverage, inconvenient power supply, or lack of fixed external power sources, greatly expanding the equipment's application range and environmental adaptability.

[0016] In this invention, to address the technical challenge of unstable output caused by the decrease in rotational speed during kinetic energy recovery, a dedicated constant speed component is provided. This component, through the synergistic action of the centrifugal pendulum and the friction clamping mechanism, can automatically adjust the rotational speed of the output shaft, ensuring that the rotational speed of the centrifugal pump driven during the energy storage and release phase remains relatively constant. This ensures the stability of the heat medium circulation flow rate, enabling the concrete in the mixing tank to obtain a uniform and continuous heating and insulation effect, effectively guaranteeing the workability and final quality of the concrete in low-temperature environments.

[0017] This invention utilizes inertial kinetic energy recovery, providing free power for insulation and reducing component wear caused by traditional braking methods. From a life-cycle perspective, this invention improves the overall energy efficiency of the equipment while achieving insulation, reducing reliance on external energy sources and helping to lower the overall operating costs of concrete construction in cold regions. Attached Figure Description

[0018] Figure 1 This invention provides an overall three-dimensional schematic diagram of a concrete insulation mixing equipment for high-altitude and cold regions; Figure 2This invention provides a schematic diagram of the structure of a mixing tank in a concrete insulation mixing equipment for high-altitude and cold regions; Figure 3 This invention provides a front sectional view of the mixing tank in a concrete insulation mixing equipment for high-altitude and cold regions; Figure 4 This invention provides a schematic diagram of the structure of a mixing impeller in a concrete insulation mixing device for high-altitude and cold regions; Figure 5 This invention provides a schematic diagram of the clutch assembly in a concrete insulation mixing device for high-altitude and cold regions. Figure 6 This invention provides a structural schematic diagram of an energy storage component in a concrete insulation mixing equipment for high-altitude and cold regions; Figure 7 This invention provides a schematic diagram of the internal structure of the shell in a concrete insulation mixing equipment for high-altitude and cold regions; Figure 8 This invention provides a schematic diagram showing the connection between the energy storage component and the centrifugal pump in a concrete insulation mixing equipment for high-altitude and cold regions. Figure 9 This invention presents a structural schematic diagram of a constant-speed component in a concrete insulation mixing equipment for high-altitude and cold regions.

[0019] Legend: 1. Base; 101. Extension frame; 2. Horizontal mixing tank; 201. Metal heat pipe; 3. Belt drive; 4. Agitator impeller; 401. Flywheel; 5. Transmission gears; 6. Clutch assembly; 601. First clutch disc; 602. Second clutch disc; 603. Clutch shaft; 604. Chuck; 605. First hydraulic rod; 7. Energy storage component; 701. Housing; 702. Energy storage disk; 703. Spring; 704. Positioning socket; 705. Second hydraulic rod; 706. First gear; 707. Second gear; 708. Third gear; 8. Constant speed assembly; 801. Constant speed shaft; 802. Fourth speed change gear; 803. Drive bevel gear; 804. Fixed rotating sleeve; 805. Moving rotating sleeve; 806. Centrifugal rod; 807. Centrifugal ball; 808. Connecting rod; 809. Return spring; 9. Centrifugal pump; 901. Driven bevel gear. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Implementation examples, based on Figures 1-9 The present invention provides a concrete insulation mixing device for high-altitude and cold regions, including a base 1, such as... Figures 1-4 As shown, a horizontal mixing tank 2 and a belt drive 3 are fixedly installed on the top of the base 1. An impeller 4 is coaxially rotatably mounted inside the horizontal mixing tank 2 and is driven to rotate by the belt drive 3. One end of the impeller 4 extends to the outside of the horizontal mixing tank 2 and is fixedly mounted with a flywheel 401 to increase rotational inertia. An extension frame 101 is fixedly welded to the base 1, and a centrifugal pump 9 is fixedly mounted on the extension frame 101. The system also includes a clutch assembly 6 mounted on the extension frame 101 for clutch control of kinetic energy recovery, and an energy storage assembly 7 mounted on the extension frame 101 for recovering the kinetic energy of the flywheel 401. The energy storage assembly 7 includes a housing 70. 1. Energy storage disk 702 and housing 701 are fixedly installed on extension frame 101. Energy storage disk 702 is rotatably installed inside housing 701. The shaft of energy storage disk 702 is connected to clutch assembly 6. A spring 703 is fixedly installed between one end of energy storage disk 702 and its shaft for energy storage. Constant speed assembly 8 is installed between energy storage assembly 7 and centrifugal pump 9 for uniform output of recovered kinetic energy. The clutch assembly 6, energy storage assembly 7 and constant speed assembly 8 are connected in sequence to form a kinetic energy recovery and utilization system. The kinetic energy of flywheel 401 is controllably transferred to energy storage assembly 7 through clutch assembly 6 for storage, and then output at a constant speed through constant speed assembly 8 to drive centrifugal pump 9.

[0023] like Figure 5As shown, the clutch assembly 6 includes a first clutch disc 601 and a second clutch disc 602. A transmission gear 5, which meshes with a flywheel 401, is rotatably mounted on the horizontal mixing tank 2. The shaft of the first clutch disc 601 is fixedly connected to the shaft of the transmission gear 5. A spline sleeve slides inside the second clutch disc 602, and a clutch shaft 603 is fixedly inserted inside the spline sleeve. A chuck 604 is rotatably fitted on the outer side of the second clutch disc 602. A drive chuck 604 is fixedly mounted on the extension frame 101. The first hydraulic rod 605, which moves linearly, and the first clutch disc 601 and the second clutch disc 602 are both provided with clutch teeth that unfold into a trapezoidal shape. When the first hydraulic rod 605 pushes the chuck 604, the chuck 604 drives the second clutch disc 602 to move axially along the clutch shaft 603, so that the clutch teeth of the second clutch disc 602 engage or disengage with the clutch teeth of the first clutch disc 601, thereby realizing the power connection or disconnection between the flywheel 401 and the energy storage component 7. like Figure 7 As shown, the outer surface of the energy storage disk 702 has multiple positioning holes 704 arranged in a ring array. A second hydraulic rod 705 is fixedly installed at the outer end of the housing 701. The telescopic end of the second hydraulic rod 705 is fixedly installed with a pin that matches the positioning holes 704. The second hydraulic rod 705 is inserted into the positioning holes 704 through the pin to lock the energy storage disk 702 and prevent it from rotating. When it is necessary to release the stored energy, the second hydraulic rod 705 retracts, pulls out the pin, and the energy storage disk 702 rotates under the restoring force of the spring 703 to release the kinetic energy. One end of the shaft of the energy storage disk 702 extends to the outside of the housing 701 and is fixedly mounted with a first speed-changing gear 706. A second speed-changing gear 707 and a third speed-changing gear 708 are rotatably mounted on the housing 701. The second speed-changing gear 707 meshes with the first speed-changing gear 706. The diameters of the first speed-changing gear 706 and the third speed-changing gear 708 are the same and larger than the diameter of the second speed-changing gear 707. The first speed-changing gear 706, the second speed-changing gear 707 and the third speed-changing gear 708 constitute a speed-changing mechanism, which is used to adjust the transmission ratio between the energy storage disk 702 and the constant speed component 8 to ensure the efficiency of kinetic energy transmission.

[0024] like Figure 8 and Figure 9As shown, the constant speed assembly 8 includes a constant speed shaft 801 rotatably mounted on the extension frame 101. A fourth speed-changing gear 802, connected to the energy storage assembly 7, is fixedly mounted at one end of the constant speed shaft 801, and a drive bevel gear 803 is fixedly mounted at the other end. A fixed rotating sleeve 804 and a movable rotating sleeve 805 are rotatably mounted on the constant speed shaft 801. The movable rotating sleeve 805 can move along the axial direction of the constant speed shaft 801. Multiple centrifugal rods 806 are rotatably mounted on the fixed rotating sleeve 804, with the ends of the centrifugal rods 806 away from the fixed rotating sleeve 804 fixedly mounted... The centrifugal ball 807 is installed, and a connecting rod 808 is rotatably connected between the moving sleeve 805 and the centrifugal rod 806. A return spring 809 is fixedly installed between the moving sleeve 805 and the fixed sleeve 804. When the speed of the constant speed shaft 801 increases, the centrifugal ball 807 swings outward under the action of centrifugal force, which pushes the moving sleeve 805 to move axially through the connecting rod 808, compressing the return spring 809. At the same time, the rotation of the centrifugal rod 806 is subject to the frictional resistance of the clamping block, thereby adjusting the speed of the constant speed shaft 801 and keeping it constant. The centrifugal rod 806 is connected to the fixed rotating sleeve 804 and the constant speed shaft 801 by a clamping block fixedly connected by a spring. The larger the rotation angle of the centrifugal rod 806, the greater the clamping force on the centrifugal rod 806. The clamping block provides an adjustable clamping force through the spring. When the rotation angle of the centrifugal rod 806 increases, the frictional resistance of the clamping block on the centrifugal rod 806 increases, thereby suppressing the speed fluctuation of the constant speed shaft 801 and realizing a steady speed output. A driven bevel gear 901, which meshes with the driving bevel gear 803, is fixedly mounted on the shaft of the centrifugal pump 9. A ring-shaped metal heat pipe 201 is embedded in the inner wall of the horizontal mixing tank 2 for heat preservation and heating of the material. The input end of the centrifugal pump 9 is connected to an external heat source and the output end is fixedly connected to the metal heat pipe 201. The centrifugal pump 9 receives the power transmitted by the constant speed shaft 801 through the driven bevel gear 901, and drives the heat medium to circulate in the metal heat pipe 201, thereby heat preservation and heating of the concrete in the horizontal mixing tank 2.

[0025] The specific working principle is as follows: when the belt drive motor 3 drives the mixing impeller 4 to rotate to mix concrete, the flywheel 401 rotates at high speed with the mixing impeller 4 to store kinetic energy. After the mixing operation is completed, the first hydraulic rod 605 is activated to push the chuck 604, so that the second clutch plate 602 engages with the first clutch plate 601. The kinetic energy of the flywheel 401 is transmitted to the energy storage plate 702 of the energy storage component 7 through the transmission gear 5 and the clutch assembly 6, driving it to rotate and tightening the spring 703 to achieve kinetic energy storage. When it is necessary to provide thermal circulation power for the metal heat pipe 201, the second hydraulic rod 705 retracts to disengage the pin from the positioning socket 704, and the energy storage disk 702 rotates under the restoring force of the spring 703. After being changed through the first speed change gear 706, the second speed change gear 707 and the third speed change gear 708, it drives the constant speed shaft 801 of the constant speed assembly 8 to rotate. The rotational speed of the constant speed shaft 801 is stabilized at a set value by a speed regulating mechanism consisting of a centrifugal rod 806, a centrifugal ball 807, and a clamping block. Then, the centrifugal pump 9 is driven by the active bevel gear 803 and the driven bevel gear 901 to pump the heat medium from the external heat source into the metal heat pipe 201, so as to uniformly heat and insulate the concrete in the horizontal mixing tank 2. This process realizes the recovery and reuse of the kinetic energy of the mixing equipment, improves the energy utilization efficiency, and is particularly suitable for the heat preservation needs of concrete construction in cold regions.

[0026] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A concrete insulation mixing equipment for high-altitude and cold regions, comprising a base (1), a horizontal mixing tank (2) fixedly installed on the top of the base (1), and a belt drive (3), wherein a mixing impeller (4) is coaxially rotatably installed inside the horizontal mixing tank (2) and the mixing impeller (4) is driven to rotate by the belt drive (3), characterized in that: One end of the impeller (4) extends to the outside of the horizontal mixing tank (2) and is fixedly mounted with a flywheel (401) to increase the moment of inertia. An extension frame (101) is fixedly welded onto the base (1), and a centrifugal pump (9) is fixedly mounted on the extension frame (101). The system also includes: A clutch assembly (6) is mounted on the extension frame (101) for clutch control of kinetic energy recovery; An energy storage assembly (7) is installed on the extension frame (101) for recovering the kinetic energy of the flywheel (401). The energy storage assembly (7) includes a housing (701) and an energy storage disk (702). The housing (701) is fixedly installed on the extension frame (101), and the energy storage disk (702) is rotatably installed inside the housing (701). The shaft of the energy storage disk (702) is connected to the clutch assembly (6). A spring spring (703) is fixedly installed between one end of the energy storage disk (702) and its shaft for energy storage. A constant speed component (8) is installed between the energy storage component (7) and the centrifugal pump (9) to ensure uniform output of the recovered kinetic energy.

2. The concrete insulation mixing equipment for high-altitude and cold regions according to claim 1, characterized in that: The clutch assembly (6) includes a first clutch disc (601) and a second clutch disc (602). A transmission gear (5) that meshes with a flywheel (401) is rotatably mounted on the horizontal mixing tank (2). The shaft of the first clutch disc (601) is fixedly connected to the shaft of the transmission gear (5). A spline sleeve slides inside the second clutch disc (602) and a clutch shaft (603) is fixedly inserted inside the spline sleeve. A chuck (604) is rotatably mounted on the outside of the second clutch disc (602). A first hydraulic rod (605) for driving the chuck (604) to move linearly is fixedly mounted on the extension frame (101).

3. The concrete insulation mixing equipment for high-altitude and cold regions according to claim 2, characterized in that: Both the first clutch disc (601) and the second clutch disc (602) are provided with clutch teeth that unfold into a trapezoidal shape.

4. The concrete insulation mixing equipment for high-altitude and cold regions according to claim 1, characterized in that: The energy storage disk (702) has multiple positioning holes (704) arranged in a ring array on its outer circular surface. A second hydraulic rod (705) is fixedly installed on the outer end of the housing (701). The telescopic end of the second hydraulic rod (705) is fixedly installed with a pin that matches the positioning hole (704).

5. The concrete insulation mixing equipment for high-altitude and cold regions according to claim 1, characterized in that: One end of the shaft of the energy storage disk (702) extends to the outside of the housing (701) and is fixedly mounted with a first gear (706). A second gear (707) and a third gear (708) are rotatably mounted on the housing (701). The second gear (707) meshes with the first gear (706). The diameters of the first gear (706) and the third gear (708) are the same and larger than the diameter of the second gear (707).

6. The concrete insulation mixing equipment for high-altitude and cold regions according to claim 1, characterized in that: The constant speed assembly (8) includes a constant speed shaft (801) rotatably mounted on an extension frame (101). A fourth speed gear (802) connected to the energy storage assembly (7) is fixedly mounted at one end of the constant speed shaft (801), and an active bevel gear (803) is fixedly mounted at the other end of the constant speed shaft (801). A fixed rotating sleeve (804) and a moving rotating sleeve (805) are rotatably mounted on the constant speed shaft (801). The moving rotating sleeve (805) can move along the axial direction of the constant speed shaft (801). Multiple centrifugal rods (806) are rotatably mounted on the fixed rotating sleeve (804). A centrifugal ball (807) is fixedly mounted at the end of the centrifugal rod (806) away from the fixed rotating sleeve (804). A connecting rod (808) is rotatably connected between the moving rotating sleeve (805) and the middle of the centrifugal rod (806). A return spring (809) is fixedly mounted between the moving rotating sleeve (805) and the fixed rotating sleeve (804).

7. A concrete insulation mixing equipment for high-altitude and cold regions according to claim 6, characterized in that: The centrifugal rod (806) and the fixed rotating sleeve (804) are connected to the constant speed shaft (801) by a clamping block fixed by a spring. The greater the rotation angle of the centrifugal rod (806), the greater the clamping force on the centrifugal rod (806).

8. The concrete insulation mixing equipment for high-altitude and cold regions according to claim 7, characterized in that: The centrifugal pump (9) has a driven bevel gear (901) fixedly installed on its shaft and meshing with the driving bevel gear (803). The horizontal mixing tank (2) has an annular metal heat pipe (201) embedded in its inner wall for heat preservation and heating of the material. The input end of the centrifugal pump (9) is connected to an external heat source and the output end is fixedly connected to the metal heat pipe (201).

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