Temperature-adjustable concrete mixing tank

Abstract

The invention relates to the technical field of stirring tanks, in particular to a temperature-adjustable concrete stirring tank which comprises a double-layer tank body, a circulation cavity is formed in the inner wall of the double-layer tank body, a cyclic compression stirring shaft is mounted at the axis position of the double-layer tank body, and the cyclic compression stirring shaft comprises a temperature control stirring shaft slidably mounted at the axis position of the double-layer tank body; a one-way compression sleeve is installed at one end of the temperature control stirring shaft, the output end of the one-way compression sleeve communicates with the temperature control stirring shaft, a heat conduction connecting shaft is installed in the temperature control stirring shaft, the end, away from the one-way compression sleeve, of the temperature control stirring shaft communicates with the circulation cavity, and the one-way compression sleeve is driven by a reciprocating driving device. A heating assembly and a cooling assembly are further installed beside the concrete stirring tank and both communicate with the double-layer tank body and the cyclic compression stirring shaft, the temperature control uniformity is effectively improved, and meanwhile the temperature control cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of mixing tanks, and more specifically to a concrete mixing tank with adjustable temperature. Background Art

[0002] The mixing tank of a concrete mixing plant is one of the core equipment, which is used to mix raw materials such as cement, aggregates (sand, stones), water and additives into uniform concrete. Its structure generally includes a tank body, mixing blades, a transmission device and a support device. The tank body of the mixing tank is generally cylindrical, and spiral or blade-shaped mixing blades are welded inside, and the materials are mixed by rotation.

[0003] Chinese Patent No. CN221160988U discloses a concrete mixer with automatic temperature control, which relates to the technical field of mixers, and includes a frame and a mixing tank arranged on the frame. Concrete is stirred in the mixing tank. A temperature sensing component, a heating component and a cooling component are arranged on the mixing tank. The temperature in the mixing tank is sensed by the temperature sensing component. When the temperature sensing component senses that the temperature in the mixing tank is higher than the specified temperature, the temperature sensing component controls the cooling component to start to cool the mixing tank; when the temperature sensing component senses that the temperature in the mixing tank is lower than the specified temperature, the temperature sensing component controls the heating component to start heating the mixing tank, thereby completing the temperature adjustment work in the mixing tank and improving the finished product quality of the concrete.

[0004] Although the above device can control the temperature through the heating component and the cooling component, there are still many deficiencies in the actual application of the existing concrete mixing tank. On the one hand, since the concrete mixing tank usually has a large volume, in order to effectively adjust the temperature inside the mixing tank, the heating component needs to consume a large amount of energy, which undoubtedly increases the production cost of the concrete. On the other hand, the existing temperature adjustment methods mainly focus on the temperature control adjustment of the inner wall of the mixing tank. Due to the presence of components such as the mixing shaft in the mixing tank, the mixing area is interfered by the mixing shaft, resulting in difficulty in effectively adjusting the temperature in the mixing area. This makes the temperature distribution in the mixing tank uneven, and the temperature environments of the concrete at different positions are different, which in turn affects the overall quality of the concrete. Summary of the Invention

[0005] In view of the above problems, a concrete mixing tank with adjustable temperature is provided, which can effectively improve the uniformity of temperature control and reduce the temperature control cost through the concrete mixing tank.

[0006] To solve the problems of the existing technology, the present invention provides a concrete mixing tank with adjustable temperature, which includes a double-layer tank body. A circulation chamber is provided on the inner wall of the double-layer tank body. A circulating compression stirring shaft is installed at the axial center position of the double-layer tank body. The circulating compression stirring shaft includes a temperature control stirring shaft slidably installed at the axial center position of the double-layer tank body. One end of the temperature control stirring shaft is equipped with a one-way compression sleeve. The output end of the one-way compression sleeve is communicated with the temperature control stirring shaft. A heat conduction connecting shaft is installed inside the temperature control stirring shaft. The end of the temperature control stirring shaft away from the one-way compression sleeve is communicated with the circulation chamber. The one-way compression sleeve is driven by a reciprocating driving device. A heating component and a cooling component are also installed beside the concrete mixing tank. Both the heating component and the cooling component are communicated with the double-layer tank body and the circulating compression stirring shaft.

[0007] Preferably, an installation channel is installed at the axial center position of the temperature control stirring shaft. A plurality of stirring frames are provided on the outer side of the temperature control stirring shaft. A plurality of liquid flow channels are provided inside both the temperature control stirring shaft and the stirring frames. The liquid inlet end of the liquid flow channel is communicated with the one-way compression sleeve. The liquid outlet end of the liquid flow channel is equipped with a rotating connector, and the rotating connector is communicated with the circulation chamber of the double-layer tank body.

[0008] Preferably, a first one-way flow-blocking part is installed at the liquid inlet end of the one-way compression sleeve. A one-way flow plate is slidably installed inside the one-way compression sleeve. A plurality of circulation holes are provided on the one-way flow plate, and a second one-way flow-blocking part is installed in each circulation hole. A connecting shaft is installed on the one-way flow plate, and the end of the connecting shaft away from the one-way flow plate passes through the temperature control stirring shaft and is fixedly connected to the heat conduction connecting shaft.

[0009] Preferably, the first one-way flow-blocking part includes a limit installation ring. An active film is provided inside the limit installation ring. A plurality of circulation openings are provided at the edge position of the active film, and a blocking surface is provided at the axial center position of the active film.

[0010] Preferably, the heat conduction connecting shaft is slidably installed inside the installation channel. An oil guide groove is provided at the axial center position of the heat conduction connecting shaft. A plurality of first oil seepage ports are provided on the heat conduction connecting shaft, and the oil seepage ports are communicated with the oil guide groove. It also includes a locking installation seat for fixing the position of the heat conduction connecting shaft.

[0011] Preferably, a detachable sliding shaft sleeve is installed outside the heat conduction connecting shaft, and a plurality of second oil seepage ports matching the first oil seepage ports are provided on the sliding shaft sleeve.

[0012] Preferably, a limit channel is provided at the axial center position of the locking installation seat. Active clamping blocks are installed on both sides of the limit channel, and the active clamping blocks are detachably connected to the limit channel.

[0013] Preferably, the reciprocating driving device includes a fixed connection sleeve fixedly installed outside the unidirectional compression sleeve. A limiting sliding groove is provided on the fixed connection sleeve. A rotating installation sleeve is slidably installed outside the fixed connection sleeve. A limiting sliding block is provided inside the rotating installation sleeve. The limiting sliding block is slidably connected with the limiting sliding groove. The reciprocating driving device further includes a telescopic guiding mechanism installed between the double-layer tank body and the unidirectional compression sleeve.

[0014] Preferably, the telescopic guiding mechanism includes a circulating driving sleeve fixedly installed on the double-layer tank body. A circulating guiding groove is provided on the inner wall of the circulating driving sleeve. A rotating sleeve is installed inside the circulating driving sleeve. The rotating sleeve is fixedly connected with the heat-conducting connecting shaft. Guiding balls are provided on the outer wall of the rotating sleeve. The guiding balls are slidably connected with the circulating guiding groove.

[0015] Preferably, a spiral dividing strip is provided in the circulation chamber of the double-layer tank body. The spiral dividing strip will form a spiral flow path in the circulation chamber.

[0016] The beneficial effects of the present invention compared with the prior art are as follows:

[0017] 1. The concrete mixing tank of the present invention adopts a heat-conducting liquid circulation temperature control system. The reciprocating driving device drives the unidirectional compression sleeve to rotate and expand and contract, so that the heat-conducting liquid inside the temperature control mixing shaft realizes unidirectional circulating flow. During the heating process, the rotation and expansion and contraction of the temperature control mixing shaft not only evenly mix the concrete material and water, but also generate mechanical heat energy by friction with the heat-conducting connecting shaft. This mechanical heat energy can be directly transferred to the concrete material or the heat-conducting liquid, enhancing the heating effect. This design makes full use of the conversion of mechanical energy into heat energy, reduces the dependence on external heating energy, reduces energy consumption compared with the traditional temperature control method that only relies on heating components, effectively controls the production cost of concrete, and improves the economy and sustainability of production.

[0018] 2. In the traditional mixing tank, the temperature adjustment is concentrated on the inner wall. Due to the interference of the mixing shaft in the mixing area, it is difficult to effectively control the temperature, resulting in uneven temperature distribution and affecting the quality of concrete. In this mixing tank of the present invention, the design of the heat-conducting liquid in cooperation with the temperature control mixing shaft effectively heats the central position of the double-layer tank body, and evenly transfers the heat to the inner wall through the circulation chamber, realizing uniform heating inside the entire tank body. During cooling, the cooling component reduces the temperature of the heat-conducting liquid, and can also evenly regulate the temperature of the concrete material. This design overcomes the problem of temperature adjustment in the mixing area, ensures that the temperature environment of the concrete at different positions inside the mixing tank is the same, avoids the instability of the concrete performance caused by temperature differences, and significantly improves the overall quality of the concrete.

[0019] 3. The heating component and the cooling component are connected to the double-layer tank body and the circulating compression stirring shaft, and can precisely control the temperature of the heat-conducting liquid. During the heating or cooling process, the circulating flow of the heat-conducting liquid and the stirring action of the temperature-controlled stirring shaft cooperate with each other, and can quickly and accurately adjust the temperature inside the mixing tank according to the actual production requirements. Whether it is necessary to perform high-temperature stirring to accelerate chemical reactions or low-temperature stirring to control the setting time, this mixing tank can provide a stable and precise temperature environment, meet the diverse needs of the production of different types and specifications of concrete, and improve the flexibility and adaptability of production. Description of the Drawings

[0020] Figure 1 is a three-dimensional schematic diagram of the concrete mixing tank with adjustable temperature of the present invention.

[0021] Figure 2 is the front view of the concrete mixing tank with adjustable temperature of the present invention.

[0022] Figure 3 is Figure 2 the plane cross-sectional view at the A-A section in

[0023] Figure 4 is Figure 3 the three-dimensional schematic diagram of

[0024] Figure 5 is Figure 4 the partial enlarged view at B in

[0025] Figure 6 is the plane cross-sectional view of the telescopic guiding mechanism in the concrete mixing tank with adjustable temperature of the present invention.

[0026] Figure 7 is Figure 4 the partial enlarged view at C in

[0027] Figure 8 is the front view of a partial structure of the circulating compression stirring shaft in the concrete mixing tank with adjustable temperature of the present invention.

[0028] Figure 9 is Figure 8 the plane cross-sectional view at the D-D section in

[0029] Figure 10 is the three-dimensional schematic diagram of the first one-way flow-blocking member in the concrete mixing tank with adjustable temperature of the present invention.

[0030] Figure 11 is the three-dimensional schematic diagram of the heat-conducting connecting shaft in the concrete mixing tank with adjustable temperature of the present invention.

[0031] Figure 12It is a schematic exploded view of the heat-conducting connecting shaft in the adjustable-temperature concrete mixing tank of the present invention.

[0032] Figure 13 It is a plane sectional perspective view of the heat-conducting connecting shaft in the adjustable-temperature concrete mixing tank of the present invention.

[0033] The reference numerals in the figure are:

[0034] 1. Double-layer tank body; 11. Circulation chamber; 111. Spiral partition strip; 2. Circulating compression stirring shaft; 21. Temperature-controlled stirring shaft; 211. Stirring frame; 212. Liquid flow channel; 213. Installation channel; 214. Rotating connection head; 22. One-way compression sleeve; 221. One-way flow plate; 2211. Circulation hole; 222. Connecting shaft; 223. First one-way flow-blocking member; 2231. Limit installation ring; 2232. Movable film; 2233. Circulation opening; 2234. Sealing surface; 224. Second one-way flow-blocking member; 23. Heat-conducting connecting shaft; 231. Oil guide groove; 232. First oil seepage port; 233. Sliding shaft sleeve; 2331. Second oil seepage port; 234. Locking installation seat; 2341. Limit channel; 235. Movable clamping block; 24. Reciprocating driving device; 241. Fixed connection sleeve; 2411. Limit sliding groove; 242. Rotating installation sleeve; 2421. Limit sliding block; 243. Telescopic guiding mechanism; 2431. Circulating driving sleeve; 2432. Circulating guiding groove; 2433. Rotating sleeve; 2434. Guiding ball; 244. Rotating driving device; 3. Heating component; 4. Cooling component. Detailed implementation manners

[0035] To further understand the features, technical means, specific purposes, and functions achieved by the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific implementation manners.

[0036] See Figures 1 to 13 As shown in the figure, the adjustable-temperature concrete mixing tank includes a double-layer tank body 1. A circulation chamber 11 is provided on the inner wall of the double-layer tank body 1. A circulating compression stirring shaft 2 is installed at the axial center position of the double-layer tank body 1. The circulating compression stirring shaft 2 includes a temperature-controlled stirring shaft 21 slidably installed at the axial center position of the double-layer tank body 1. One end of the temperature-controlled stirring shaft 21 is provided with a one-way compression sleeve 22. The output end of the one-way compression sleeve 22 is communicated with the temperature-controlled stirring shaft 21. A heat-conducting connecting shaft 23 is installed inside the temperature-controlled stirring shaft 21. The end of the temperature-controlled stirring shaft 21 away from the one-way compression sleeve 22 is communicated with the circulation chamber 11. The one-way compression sleeve 22 is driven by a reciprocating driving device 24. A heating component 3 and a cooling component 4 are also installed beside the concrete mixing tank. Both the heating component 3 and the cooling component 4 are communicated with the double-layer tank body 1 and the circulating compression stirring shaft 2.

[0037] Beside the concrete mixing tank, a heating component 3 and a cooling component 4 are installed. Both the heating component 3 and the cooling component 4 are connected to the double-layer tank body 1 and the circulating compression stirring shaft 2 to heat or cool the heat-conducting fluid. The double-layer tank body 1, the temperature-controlled stirring shaft 21, and the inside of the one-way compression sleeve 22 are pre-filled with a heat-conducting fluid as a heat conduction medium.

[0038] During the concrete mixing process, when it is necessary to control the temperature of the double-layer tank body 1, the reciprocating driving device 24 is started to drive the one-way compression sleeve 22 to perform rotational telescopic motion. This motion causes the temperature-controlled stirring shaft 21 to move synchronously and compress the heat-conducting fluid inside, prompting the heat-conducting fluid to flow unidirectionally in a cycle. According to the temperature control requirements, the flowing heat-conducting fluid will pass through the flow chamber 11 and flow to the heating component 3 or the cooling component 4.

[0039] When it is necessary to heat the concrete material, the heating component 3 is started to allow the heat-conducting fluid to flow through the heating component 3. The heating component 3 precisely controls the temperature of the flowing heat-conducting fluid. At the same time, during the rotational telescopic motion of the temperature-controlled stirring shaft 21, it not only evenly and effectively stirs the concrete material and water inside the double-layer tank body 1, but also generates mechanical heat energy through friction with the heat-conducting connecting shaft 23. This mechanical heat energy can be directly transferred to the concrete material or transferred to the heat-conducting fluid through the temperature-controlled stirring shaft 21 to further enhance the heating effect. This design achieves an energy-saving and stable heating temperature control effect because the utilization of mechanical heat energy reduces the consumption of external heating energy.

[0040] When it is necessary to lower the temperature during the concrete material mixing, the cooling component 4 is started to allow the heat-conducting fluid to flow through the cooling component 4. The cooling component 4 realizes the temperature reduction regulation of the concrete material by lowering the temperature of the heat-conducting fluid.

[0041] In addition, the design of the heat-conducting fluid in cooperation with the temperature-controlled stirring shaft 21 enables the effective heating of the axial center position of the double-layer tank body 1. Through the flow chamber 11 of the double-layer tank body 1, the heat-conducting fluid evenly transfers heat to the inner wall of the double-layer tank body 1, thus achieving a uniform heating effect inside the entire double-layer tank body 1. This design not only improves the accuracy of temperature control but also ensures the temperature uniformity of the concrete material during the mixing process, thereby enhancing the overall quality of the concrete.

[0042] Both the heating component 3 and the cooling component 4 are prior arts and will not be elaborated here.

[0043] See Figures 1 to 9As shown, an installation channel 213 is installed at the axial center position of the temperature-controlled stirring shaft 21. A plurality of stirring frames 211 are arranged on the outer side of the temperature-controlled stirring shaft 21. A plurality of liquid flow channels 212 are arranged inside both the temperature-controlled stirring shaft 21 and the stirring frames 211. The liquid inlet end of the liquid flow channel 212 is communicated with the one-way compression sleeve 22, and a rotating connector 214 is installed at the liquid outlet end of the liquid flow channel 212. The rotating connector 214 is communicated with the circulation chamber 11 of the double-layer tank body 1.

[0044] The temperature-controlled stirring shaft 21, as the core component of a concrete mixing tank with adjustable temperature, its working principle is based on the synergistic effect of heat conduction, mechanical movement and fluid dynamics. An installation channel 213 is provided at the axial center position of the temperature-controlled stirring shaft 21 for accommodating the heat-conducting connecting shaft 23. A plurality of stirring frames 211 are evenly distributed on the outer side of the temperature-controlled stirring shaft 21. These stirring frames 211 not only enhance the stirring effect but also participate in the heat conduction process.

[0045] Inside the temperature-controlled stirring shaft 21 and the stirring frames 211, a plurality of liquid flow channels 212 are provided. The liquid inlet ends of these liquid flow channels 212 are tightly communicated with the one-way compression sleeve 22 to ensure that the heat-conducting liquid can flow smoothly. The liquid outlet ends are installed with rotating connectors 214, and these rotating connectors 214 are connected to the circulation chamber 11 of the double-layer tank body 1 to form a complete heat-conducting liquid circulation path.

[0046] When the concrete mixing tank needs to control the temperature, the reciprocating driving device 24 is started to drive the one-way compression sleeve 22 to perform rotational telescopic movement. This movement not only makes the temperature-controlled stirring shaft 21 rotate and telescopic synchronously but also, through the action of the one-way compression sleeve 22, pushes the heat-conducting liquid to flow into the liquid flow channel 212. During the process of the heat-conducting liquid passing through the temperature-controlled stirring shaft 21 and the stirring frames 211, heat transfer and exchange are achieved, thereby effectively regulating the temperature of the temperature-controlled stirring shaft 21 and the stirring frames 211.

[0047] During the rotational telescopic movement of the temperature-controlled stirring shaft 21, friction will occur between the installation channel 213 and the outer wall of the heat-conducting connecting shaft 23. This friction not only does not cause energy loss but can be converted into mechanical heat energy, further enhancing the heating effect. This mechanical heat energy can be directly transferred to the concrete material or transferred to the heat-conducting liquid through the temperature-controlled stirring shaft 21, achieving an energy-saving and stable heating and temperature control effect.

[0048] At the same time, the rotational telescopic movement of the temperature-controlled stirring shaft 21 will also drive a plurality of stirring frames 211 to perform synchronous movement. These stirring frames 211 mix and stir the concrete inside the double-layer tank body 1 to ensure the uniformity and consistency of the concrete material. The flow of the heat-conducting liquid in the liquid flow channel 212 is collected through the rotating connector 214 and directed to the circulation chamber 11 of the double-layer tank body 1, achieving uniform heating or cooling of the entire inside of the double-layer tank body 1.

[0049] The working principle of the temperature control stirring shaft 21 is that the rotational telescopic movement of the one-way compression sleeve 22 promotes the flow of the heat-conducting liquid in the liquid flow channel 212, realizing the transfer and exchange of heat. At the same time, mechanical heat energy is generated by the friction between the installation channel 213 and the heat-conducting connecting shaft 23 to enhance the heating effect. And the synchronous movement of the stirring frame 211 ensures the uniform stirring of the concrete material. This series of synergistic effects enable the temperature control stirring shaft 21 to efficiently and stably control the temperature of the concrete mixing tank and improve the overall quality of the concrete.

[0050] See Figures 3 to 5 As shown, a first one-way flow-blocking member 223 is installed at the liquid inlet end of the one-way compression sleeve 22. A one-way flow plate 221 is slidably installed inside the one-way compression sleeve 22. A plurality of flow holes 2211 are provided on the one-way flow plate 221, and a second one-way flow-blocking member 224 is installed in each flow hole 2211. A connecting shaft 222 is installed on the one-way flow plate 221, and one end of the connecting shaft 222 away from the one-way flow plate 221 passes through the temperature control stirring shaft 21 and is fixedly connected to the heat-conducting connecting shaft 23.

[0051] A connecting shaft 222 is also installed on the one-way flow plate 221. One end of the connecting shaft 222 away from the one-way flow plate 221 passes through the temperature control stirring shaft 21 and is fixedly connected to the heat-conducting connecting shaft 23, forming a stable mechanical linkage structure. The liquid inlet end of the one-way compression sleeve 22 passes through the heating assembly 3 and the cooling assembly 4 through a pipeline and is communicated with the circulation chamber 11 of the double-layer tank body 1, while the liquid outlet end of the one-way compression sleeve 22 is tightly communicated with the temperature control stirring shaft 21 to ensure that the heat-conducting liquid can circulate smoothly among the components.

[0052] The one-way flow plate 221 plays a partitioning role inside the one-way compression sleeve 22, dividing the inside of the one-way compression sleeve 22 into two left and right circulation chambers 11. Among them, the right circulation chamber 11 is communicated with the liquid inlet end of the one-way compression sleeve 22, while the left circulation chamber 11 is communicated with the temperature control stirring shaft 21, forming a closed loop for the circulation of the heat-conducting liquid.

[0053] When the reciprocating driving device 24 is started to drive the one-way compression sleeve 22 to perform rotational telescopic movement, the one-way flow plate 221 will maintain a synchronous fixed position with the heat-conducting connecting shaft 23. During the backward rotation and contraction of the one-way compression sleeve 22, the heat-conducting liquid inside the left circulation chamber 11 will be subjected to a squeezing effect. At this time, the second one-way flow-blocking member 224 will automatically block under the influence of hydraulic pressure, forcing the heat-conducting liquid in the left circulation chamber 11 to be squeezed and flow into the liquid flow channel 212 of the temperature control stirring shaft 21. At the same time, a negative pressure state will be formed in the right circulation chamber 11, prompting the first one-way flow-blocking member 223 to open, allowing the heat-conducting liquid to pass through the first one-way flow-blocking member 223 and enter the right circulation chamber 11 to prepare for the next cycle.

[0054] When the one-way compression sleeve 22 rotates forward and extends, the heat-conducting liquid in the right flow chamber 11 will be squeezed. At this time, the first one-way flow-blocking member 223 will close to prevent the reverse flow of the heat-conducting liquid. At the same time, the heat-conducting liquid will exert pressure on the flow holes 2211 of the one-way flow plate 221 to force the second one-way flow-blocking member 224 to open, so that the heat-conducting liquid in the right flow chamber 11 can smoothly flow into the left flow chamber 11. This process forms a circulating extrusion flow effect of the heat-conducting liquid inside the one-way compression sleeve 22, ensuring that the heat-conducting liquid can circulate continuously and efficiently, and realizing the effective transfer and exchange of heat.

[0055] See Figure 5 and Figure 10 As shown, the first one-way flow-blocking member 223 includes a limit mounting ring 2231. An active film 2232 is provided inside the limit mounting ring 2231. A plurality of flow openings 2233 are provided at the edge position of the active film 2232, and a blocking surface 2234 is provided at the axial center position of the active film 2232.

[0056] The first one-way flow-blocking member 223 is mainly composed of a limit mounting ring 2231 and an active film 2232. The limit mounting ring 2231 is designed to be stably mounted at the liquid inlet of the one-way compression sleeve 22. An active film 2232 is provided inside the limit mounting ring 2231, and the active film 2232 has sufficient flexibility and elasticity to respond to changes in the flow state of the heat-conducting liquid.

[0057] A plurality of flow openings 2233 are provided at the edge position of the active film 2232. Under normal circumstances, the flow openings 2233 allow the heat-conducting liquid to pass freely, ensuring the smooth circulation of the fluid in the system. And a blocking surface 2234 is provided at the axial center position of the active film 2232. Under specific conditions, the blocking surface 2234 can closely fit the liquid inlet of the one-way compression sleeve 22 to form an effective flow-blocking barrier.

[0058] Under normal operating conditions, that is, when the heat-conducting liquid flows normally, the active film 2232 is in a state of separation from the liquid inlet of the one-way compression sleeve 22. At this time, the flow openings 2233 on the active film 2232 are completely open, and the heat-conducting liquid can pass through unobstructed, realizing the effective transfer and exchange of heat.

[0059] However, when there is a reverse flow of the heat-conducting liquid in the system, the first one-way flow-blocking member 223 will respond quickly. Due to the hydraulic action generated by the reverse flow, the active film 2232 will be deformed under pressure, and the blocking surface 2234 at its axial center position will closely fit the liquid inlet of the one-way compression sleeve 22, thereby closing the flow path and preventing the reverse flow of the heat-conducting liquid. It ensures that the heat-conducting liquid can only flow in the predetermined direction, effectively preventing the influence of reverse flow on the system performance and temperature control accuracy.

[0060] The first one-way flow restrictor 223 and the second one-way flow restrictor 224 are the same in structure and working principle, and both achieve the effect of forming a one-way flow by means of the above principle, realizing the one-way flow control of the heat-conducting liquid in the concrete mixing tank.

[0061] See Figures 3 to 13 As shown, the heat-conducting connecting shaft 23 is slidably installed inside the installation channel 213. An oil guide groove 231 is provided at the axial center position of the heat-conducting connecting shaft 23. A plurality of first oil seepage ports 232 are provided on the heat-conducting connecting shaft 23. The oil seepage ports are communicated with the oil guide groove 231. A locking mounting seat 234 for fixing the position of the heat-conducting connecting shaft 23 is further included.

[0062] The heat-conducting connecting shaft 23 is slidably installed inside the installation channel 213 of the temperature control mixing shaft 21. An oil guide groove 231 is provided at the axial center position of the heat-conducting connecting shaft 23. This oil guide groove 231 facilitates the staff to add engine oil when needed to improve the lubricity of the friction between the heat-conducting connecting shaft 23 and the inner wall of the installation channel 213, reduce wear and extend the service life of the components. A plurality of first oil seepage ports 232 are evenly distributed on the heat-conducting connecting shaft 23. The first oil seepage ports 232 are directly communicated with the oil guide groove 231 to ensure that the engine oil can uniformly penetrate to the surface of the heat-conducting connecting shaft 23 to form a lubricating film, further optimizing the friction performance.

[0063] During the working process of the concrete mixing tank, when the reciprocating driving device 24 is started and drives the temperature control mixing shaft 21 to perform a reciprocating rotational motion, the inner wall of the installation channel 213 will generate relative friction with the outer wall of the heat-conducting connecting shaft 23, which can be converted into mechanical heat energy. Due to the close contact between the heat-conducting connecting shaft 23 and the temperature control mixing shaft 21, this part of the mechanical heat energy can be quickly transferred to the temperature control mixing shaft 21 through the heat-conducting connecting shaft 23 and further transferred to the heat-conducting liquid through the liquid flow channel 212 inside the temperature control mixing shaft 21.

[0064] This heat energy transfer process of the heat-conducting connecting shaft 23 is crucial for the temperature control of the concrete mixing tank. On the one hand, the generation of mechanical heat energy reduces the consumption of external heating energy, achieving an energy-saving effect.

[0065] The locking mounting seat 234 is used to fixedly install the heat-conducting connecting shaft 23 to prevent it from undergoing axial displacement during the movement process.

[0066] See Figures 11 to 13 As shown, a detachable sliding shaft sleeve 233 is installed outside the heat-conducting connecting shaft 23. A plurality of second oil seepage ports 2331 matching the first oil seepage ports 232 are provided on the sliding shaft sleeve 233.

[0067] The detachable sliding sleeve 233 is used to directly contact the inner wall of the installation channel 213 and generate friction. The sliding sleeve 233 is provided with a plurality of second oil seepage ports 2331 matching the first oil seepage ports 232. The design of the second oil seepage ports 2331 ensures that the engine oil can smoothly penetrate into the friction interface, further optimizing the friction performance.

[0068] In a high temperature climate environment, when the heat transfer fluid does not need to be heated, in order to avoid generating unnecessary mechanical heat energy, the staff can remove the sliding sleeve 233 from the heat transfer connecting shaft 23. In this way, the heat transfer connecting shaft 23 cannot contact the installation channel 213 of the temperature control stirring shaft 21, thereby failing to generate heat energy due to mechanical friction, thereby achieving flexible adjustment of temperature control.

[0069] See also Figure 11 and Figure 12 As shown, a limiting channel 2341 is provided at the axial center position of the locking mounting seat 234 , and movable clamping blocks 235 are installed on both sides of the limiting channel 2341 , and the movable clamping blocks 235 are detachably connected to the limiting channel 2341 .

[0070] A limiting channel 2341 is provided at the axis center of the locking mounting seat 234, and the limiting channel 2341 provides a detachable channel space for the heat-conducting connecting shaft 23. Both sides of the limiting channel 2341 are installed with movable clamping blocks 235, which are detachably connected to the limiting channel 2341 and fixed and unlocked by bolt fasteners.

[0071] Under normal working conditions, the heat-conducting connecting shaft 23 and the movable clamping block 235 are fixed and locked together by bolts, so that one end of the heat-conducting connecting shaft 23 is limited and fixed in the limiting channel 2341. This design ensures the stability and reliability of the heat-conducting connecting shaft 23 during the operation of the concrete mixing tank, prevents the heat-conducting connecting shaft 23 from axial displacement or radial shaking due to rotational reciprocating motion, thereby ensuring the high efficiency and stability of heat energy transfer.

[0072] When it is necessary to remove the sliding sleeve 233, the staff can directly release the locking state of the movable clamping block 235. This causes the fixing force between the movable clamping block 235 and the heat-conducting connecting shaft 23 to be lost. Subsequently, the staff can smoothly pull the sliding sleeve 233 on the heat-conducting connecting shaft 23 out of the limiting channel 2341, thereby realizing the separation of the sliding sleeve 233 from the heat-conducting connecting shaft 23. This process is not only simple to operate, but also improves the convenience of installation and removal.

[0073] See also Figures 3 to 5As shown, the reciprocating drive device 24 includes a fixed connection sleeve 241 fixedly installed on the outer side of the unidirectional compression sleeve 22. A limit chute 2411 is provided on the fixed connection sleeve 241. A rotating installation sleeve 242 is slidably installed on the outside of the fixed connection sleeve 241. A limit slider 2421 is provided on the inner side of the rotating installation sleeve 242. The limit slider 2421 is slidably connected to the limit chute 2411. The reciprocating drive device 24 further includes a telescopic guiding mechanism 243 installed between the double-layer tank body 1 and the unidirectional compression sleeve 22.

[0074] The reciprocating drive device 24 drives the rotating installation sleeve 242 to rotate through the rotary drive device 244. The telescopic guiding mechanism 243 is used to guide the unidirectional compression sleeve 22 to rotate and at the same time perform reciprocating telescopic motion.

[0075] When it is necessary to drive the unidirectional compression sleeve 22 to perform rotary telescopic motion, the rotary drive device 244 is started. The rotary drive device 244 is a prior art, and its specific implementation manner will not be elaborated here. The rotary drive device 244 provides rotary power for the rotating installation sleeve 242. The rotary drive device 244 drives the rotating installation sleeve 242 to rotate. During the rotation of the rotating installation sleeve 242, kinetic energy is transmitted to the limit chute 2411 of the fixed connection sleeve 241 through the limit slider 2421, causing the fixed connection sleeve 241 to rotate accordingly.

[0076] Since there is a fixed connection relationship between the fixed connection sleeve 241 and the unidirectional compression sleeve 22, the rotation of the fixed connection sleeve 241 will drive the unidirectional compression sleeve 22 to rotate synchronously. At the same time, due to the sliding connection characteristic between the limit slider 2421 and the limit chute 2411, the fixed connection sleeve 241 can also perform telescopic movement while rotating. This telescopic movement is guided by the telescopic guiding mechanism 243 to ensure that the unidirectional compression sleeve 22 can achieve reciprocating telescopic motion while rotating.

[0077] See Figure 5 and Figure 6 As shown, the telescopic guiding mechanism 243 includes a circulating drive sleeve 2431 fixedly installed on the double-layer tank body 1. A circulating guiding groove 2432 is provided on the inner wall of the circulating drive sleeve 2431. A rotating sleeve 2433 is installed inside the circulating drive sleeve 2431. The rotating sleeve 2433 is fixedly connected to the heat-conducting connection shaft 23. Guiding balls 2434 are provided on the outer wall of the rotating sleeve 2433. The guiding balls 2434 are slidably connected to the circulating guiding groove 2432.

[0078] When the reciprocating drive device 24 is started and the rotary drive device 244 drives the rotating mounting sleeve 242 to rotate, since the limiting slider 2421 between the fixed connection sleeve 241 and the rotating mounting sleeve 242 is slidably connected to the limiting chute 2411, the fixed connection sleeve 241 will rotate accordingly. Since the fixed connection sleeve 241 and the one-way compression sleeve 22 are fixedly connected, the one-way compression sleeve 22 will also rotate synchronously.

[0079] The rotation of the one-way compression sleeve 22 will drive the rotating sleeve 2433 to rotate synchronously. During the rotation, the guiding balls 2434 on the outer wall of the rotating sleeve 2433 will slide along the circulating guiding groove 2432 on the inner wall of the circulating drive sleeve 2431. Since the circulating guiding groove 2432 is inclined, the guiding balls 2434 will be affected by the inclined surface of the circulating guiding groove 2432 during the sliding process, thereby generating an axial force that forces the rotating sleeve 2433 to perform reciprocating telescopic movement while rotating.

[0080] Since the rotating sleeve 2433 is fixedly connected to the heat-conducting connecting shaft 23, the reciprocating telescopic movement of the rotating sleeve 2433 will directly cause the heat-conducting connecting shaft 23 to also perform reciprocating telescopic movement. This reciprocating telescopic movement combined with the rotational movement of the one-way compression sleeve 22 realizes the movement trajectory of the one-way compression sleeve 22 to perform reciprocating telescopic movement while rotating.

[0081] See Figure 7 As shown, a spiral dividing strip 111 is provided in the flow chamber 11 of the double-layer tank body 1, and the spiral dividing strip 111 will form a spiral flow path in the flow chamber 11.

[0082] The spiral dividing strip 111 in the flow chamber 11 effectively guides the heat-conducting liquid to flow along the spiral path. This spiral flow path not only increases the residence time of the heat-conducting liquid in the flow chamber 11, but also promotes the heat exchange between the heat-conducting liquid and the inner wall of the double-layer tank body 1, thereby improving the temperature control uniformity. At the same time, the spiral flow path also helps to reduce the flow resistance of the heat-conducting liquid and improve the temperature conduction efficiency.

[0083] The design of the spiral dividing strip 111 not only improves the temperature control uniformity, but also enhances the structural strength of the double-layer tank body 1. The spiral dividing strip 111, as a support structure for the inner wall of the double-layer tank body 1, effectively disperses the stress received by the tank body during the stirring process, avoids deformation or damage of the double-layer tank body 1, and thus ensures the long-term stable operation of the concrete mixing tank.

[0084] Specific working principle:

[0085] Beside the concrete mixing tank, a heating component 3 and a cooling component 4 are installed. Both the heating component 3 and the cooling component 4 are connected to the double-layer tank body 1 and the circulating compression stirring shaft 2 to heat or cool the heat-conducting liquid. The double-layer tank body 1, the temperature-controlled stirring shaft 21, and the inside of the one-way compression sleeve 22 are pre-filled with heat-conducting liquid as the heat conduction medium.

[0086] During the concrete mixing process, when it is necessary to control the temperature of the double-layer tank body 1, the reciprocating driving device 24 is started to drive the one-way compression sleeve 22 to perform rotational telescopic movement. This movement causes the temperature-controlled stirring shaft 21 to move synchronously and compress the internal heat-conducting liquid, prompting the heat-conducting liquid to flow unidirectionally in a cycle. According to the temperature control requirements, the flowing heat-conducting liquid will pass through the flow chamber 11 and flow to the heating component 3 or the cooling component 4.

[0087] When it is necessary to heat the concrete material, the heating component 3 is started to allow the heat-conducting liquid to flow through the heating component 3. The heating component 3 precisely controls the temperature of the flowing heat-conducting liquid. At the same time, during the rotational telescopic movement of the temperature-controlled stirring shaft 21, it not only evenly and effectively stirs the concrete material and water inside the double-layer tank body 1, but also generates mechanical heat energy through friction with the heat-conducting connecting shaft 23. This mechanical heat energy can be directly transferred to the concrete material or transferred to the heat-conducting liquid through the temperature-controlled stirring shaft 21 to further enhance the heating effect. This design achieves an energy-saving and stable heating temperature control effect because the utilization of mechanical heat energy reduces the consumption of external heating energy.

[0088] When it is necessary to reduce the temperature during the concrete material mixing, the cooling component 4 is started to allow the heat-conducting liquid to flow through the cooling component 4. The cooling component 4 realizes the temperature reduction regulation of the concrete material by reducing the temperature of the heat-conducting liquid.

[0089] In addition, the design of the heat-conducting liquid in cooperation with the temperature-controlled stirring shaft 21 enables the effective heating of the axial center position of the double-layer tank body 1. Through the flow chamber 11 of the double-layer tank body 1, the heat-conducting liquid evenly transfers heat to the inner wall of the double-layer tank body 1, thereby achieving a uniform heating effect inside the entire double-layer tank body 1. This design not only improves the accuracy of temperature control but also ensures the temperature uniformity of the concrete material during the mixing process, thereby enhancing the overall quality of the concrete.

[0090] The above embodiments only represent one or several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A temperature-adjustable concrete mixing tank, characterized in that: The concrete mixing tank comprises a double-layer tank body (1), wherein a circulation chamber (11) is arranged in the inner wall of the double-layer tank body (1), a circulating compression stirring shaft (2) is installed at the axis center position of the double-layer tank body (1), the circulating compression stirring shaft (2) comprises a temperature-controlled stirring shaft (21) slidably installed at the axis center position of the double-layer tank body (1), a one-way compression sleeve (22) is installed at one end of the temperature-controlled stirring shaft (21), the output end of the one-way compression sleeve (22) is connected to the temperature-controlled stirring shaft (21), a heat-conducting connecting shaft (23) is installed inside the temperature-controlled stirring shaft (21), one end of the temperature-controlled stirring shaft (21) away from the one-way compression sleeve (22) is connected to the circulation chamber (11), the one-way compression sleeve (22) is driven by a reciprocating drive device (24), and a heating component (3) and a cooling component (4) are also installed on the side of the concrete mixing tank, and the heating component (3) and the cooling component (4) are both connected to the double-layer tank body (1) and the circulating compression stirring shaft (2).

2. The temperature-adjustable concrete mixing tank according to claim 1, characterized in that: An installation channel (213) is installed at the axis position of the temperature-controlled stirring shaft (21), a plurality of stirring racks (211) are arranged on the outside of the temperature-controlled stirring shaft (21), and a plurality of liquid flow channels (212) are arranged inside the temperature-controlled stirring shaft (21) and the stirring racks (211), the liquid inlet end of the liquid flow channel (212) is connected to the one-way compression sleeve (22), and a rotating connector (214) is installed at the liquid outlet end of the liquid flow channel (212), and the rotating connector (214) is connected to the flow chamber (11) of the double-layer tank body (1).

3. The temperature-adjustable concrete mixing tank according to claim 1, characterized in that: A first one-way flow blocker (223) is installed at the liquid inlet end of the one-way compression sleeve (22), a one-way flow plate (221) is slidably installed inside the one-way compression sleeve (22), a plurality of flow holes (2211) are provided on the one-way flow plate (221), a second one-way flow blocker (224) is installed in each flow hole (2211), a connecting shaft (222) is installed on the one-way flow plate (221), and an end of the connecting shaft (222) away from the one-way flow plate (221) passes through the temperature control stirring shaft (21) and is fixedly connected to the heat-conducting connecting shaft (23).

4. The temperature-adjustable concrete mixing tank according to claim 3, characterized in that: The first one-way flow blocking member (223) comprises a limiting installation ring (2231), a movable film (2232) is arranged inside the limiting installation ring (2231), a plurality of flow openings (2233) are arranged at the edge of the movable film (2232), and a sealing surface (2234) is arranged at the axial center of the movable film (2232).

5. The temperature-adjustable concrete mixing tank according to claim 2, characterized in that: The heat-conducting connecting shaft (23) is slidably mounted inside the mounting channel (213); an oil guide groove (231) is provided at the axial center of the heat-conducting connecting shaft (23); a plurality of first oil seepage ports (232) are provided on the heat-conducting connecting shaft (23), the oil seepage ports are in communication with the oil guide groove (231), and a locking mounting seat (234) is also included for fixing the position of the heat-conducting connecting shaft (23).

6. The temperature-adjustable concrete mixing tank according to claim 5, characterized in that: A detachable sliding sleeve (233) is installed on the outer side of the heat-conducting connecting shaft (23), and a plurality of second oil seepage ports (2331) matching the first oil seepage ports (232) are arranged on the sliding sleeve (233).

7. The temperature-adjustable concrete mixing tank according to claim 6, characterized in that: A limiting channel (2341) is provided at the axial center position of the locking mounting seat (234), and movable clamping blocks (235) are installed on both sides of the limiting channel (2341), and the movable clamping blocks (235) are detachably connected to the limiting channel (2341).

8. The temperature-adjustable concrete mixing tank according to claim 1, characterized in that: The reciprocating drive device (24) comprises a fixed connection sleeve (241) fixedly mounted on the outside of the one-way compression sleeve (22), a limiting slide groove (2411) being provided on the fixed connection sleeve (241), a rotating installation sleeve (242) being slidably mounted on the outside of the fixed connection sleeve (241), a limiting slider (2421) being provided on the inside of the rotating installation sleeve (242), the limiting slider (2421) being slidably connected to the limiting slide groove (2411), and the reciprocating drive device (24) further comprises a telescopic guide mechanism (243) mounted between the double-layer tank body (1) and the one-way compression sleeve (22).

9. The temperature-adjustable concrete mixing tank according to claim 8, characterized in that: The telescopic guide mechanism (243) comprises a circulation drive sleeve (2431) fixedly mounted on the double-layer tank body (1); the inner wall of the circulation drive sleeve (2431) is provided with a circulation guide groove (2432); a rotating sleeve (2433) is installed inside the circulation drive sleeve (2431); the rotating sleeve (2433) is fixedly connected to the heat-conducting connecting shaft (23); the outer wall of the rotating sleeve (2433) is provided with a guide ball (2434); and the guide ball (2434) is slidably connected to the circulation guide groove (2432).

10. The temperature-adjustable concrete mixing tank according to claim 1, characterized in that: A spiral dividing strip (111) is provided in the circulation chamber (11) of the double-layer tank body (1), and the spiral dividing strip (111) forms a spiral flow path in the circulation chamber (11).

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