A cementing truck engine cooling device

Abstract

The application relates to the field of oil and gas well engineering mechanical equipment, and discloses a cementing truck engine heat dissipation device, which comprises a cementing truck engine, one end of the cementing truck engine is provided with a surrounding plate, a breathable mesh box is arranged outside the connecting end of the surrounding plate and the cementing truck engine, a fan is arranged at the output end of the cementing truck engine, one end of the fan is fixedly connected with a transmission rod, the transmission rod is provided with a cleaning assembly at one end, a first gear is fixedly connected to the outer wall of the transmission rod, a heat dissipation box is fixedly connected to the front end of the inside of the surrounding plate, circulating water tanks are fixedly connected to the two ends of the heat dissipation box, and circulating liquid pipes are arranged between the two circulating water tanks. Through the construction of the circulating heat dissipation system combining air cooling and liquid cooling, the air pressure auxiliary cooling structure can maintain efficient heat exchange of the cooling liquid under the working condition that the cementing truck is static and the air inlet is limited, and the environmental adaptability of the engine temperature control device is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of oil and gas well engineering machinery and equipment technology, specifically to a cementing truck engine cooling device. Background Technology

[0002] Currently, cementing trucks are crucial on-site construction equipment in oil and gas drilling projects. Their engines not only provide power for the entire vehicle's movement but also drive the high-load cementing equipment to perform tasks when the vehicle is stationary. Since cementing operations often occur in high-temperature, windy, or humid outdoor environments, the engine's continuous operation over extended periods leads to a significant increase in heat load. If the cooling system cannot operate stably and efficiently, it will directly affect the engine's thermal control performance and the safety and reliability of the entire vehicle's operation.

[0003] In the existing technology, most cementing trucks generally use a single air-cooling or traditional liquid-cooling method to cool the engine. The air-cooling structure relies on natural air intake during vehicle movement, combined with fan assistance for heat dissipation. Although it can maintain a certain cooling capacity when the vehicle is moving, when the cementing truck enters the well-station operation or long-term stationary construction stage, the air flow rate drops significantly, the efficiency of the cooling system weakens rapidly, and it is easy to cause local overheating of the engine. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a cooling device for a cementing truck engine, which solves the problems of insufficient heat dissipation efficiency, difficult cleaning and maintenance, and low energy utilization rate of existing cementing truck cooling systems under static conditions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cementing truck engine cooling device, comprising a cementing truck engine, a surrounding plate installed at one end of the cementing truck engine, a ventilated mesh box provided outside the connection end between the surrounding plate and the cementing truck engine, a fan installed at the output end of the cementing truck engine, a transmission rod fixedly connected to one end of the fan, a cleaning component installed at one end of the transmission rod, a first gear fixedly connected to the outer wall of the transmission rod, a heat dissipation box fixedly connected to the front end of the inner side of the surrounding plate, circulating water tanks fixedly connected to both ends of the heat dissipation box, a circulating liquid pipe provided between the two circulating water tanks and connected to the internal liquid cooling pipeline of the cementing truck engine to form a circulating heat dissipation pipeline, multiple fixed plates installed inside the surrounding plate, a second gear rotatably connected to one end of one of the fixed plates, a connecting disc fixedly connected to one end of the second gear, a permanent magnet cover fixedly connected to one end of the fixed plate, multiple armatures fixedly connected to the outer wall of the connecting disc, a coil fixedly connected to one end of the permanent magnet cover, and the coil fixedly connected to one end of the fixed plate.

[0006] Preferably, the cleaning assembly includes a positioning box, which is fixedly connected to the inner wall of the heat sink. One end of the transmission rod is fixedly connected to a worm gear, and the inner wall of the positioning box is rotatably connected to a worm wheel. A lead screw is fixedly connected to the middle of the worm wheel, and multiple brush plates are connected to the external thread of the lead screw.

[0007] Preferably, each end of the heat sink is fixedly connected to a mounting box, and a circulating liquid pipe is fixedly connected to the adjacent side of the two mounting boxes. An outer gas-insulating layer is fixedly connected to the outer wall of the circulating liquid pipe.

[0008] Preferably, the brush plate is slidably connected to the outer wall of the outer air-sealing layer, and brushes are provided at both ends of the brush plate.

[0009] Preferably, a battery is installed inside the enclosure plate, and an air compressor is installed inside the enclosure plate, with the battery electrically connected to the air compressor.

[0010] Preferably, the coil is fixedly connected to one end of the fixed plate, and the armature generates an electromotive force when it rotates and cuts the magnetic field lines with the permanent magnet cover.

[0011] Preferably, the worm and the worm wheel are meshed together, and the lead screw is rotatably connected to the top of the positioning box.

[0012] Preferably, the first gear and the second gear are meshed, and the transmission rod is rotatably connected to one end of the fixed plate.

[0013] Preferably, a rectifier is installed inside the coil, one end of which is electrically connected to the battery.

[0014] Preferably, the air compressor output pipeline is connected to the interior of the outer air layer.

[0015] Working principle: Existing cementing trucks are usually used in two states: one is when the engine output is not switched to support the movement of the vehicle itself, and the other is when the vehicle is stationary and the engine output is switched to drive the cementing equipment. Therefore, in both of these states, corresponding engine cooling devices need to be installed to control the engine temperature.

[0016] This cooling system uses the same coolant circulation principle as traditional engine cooling systems, achieving cooling through coolant heat exchange. During cooling, heat is dissipated through enlarged-area circulation pipes and a fan. However, with prolonged use and in cities with high levels of air pollution, impurities can accumulate on the outside of the circulation pipes, affecting its heat dissipation performance. To ensure stable cooling efficiency, the system transmits power via a synchronously connected transmission rod during fan operation. This transmission, through the meshing of a worm gear and worm wheel, drives a lead screw to rotate. This rotation, in turn, drives a brush plate via a threaded connection to repeatedly clean impurities from the outside of the circulation pipes and the sides of the radiator during fan operation, thus stabilizing cooling efficiency.

[0017] The heat dissipation efficiency of the cementing truck's engine during movement is greater than that when it is stationary. This is because the air intake volume during movement is greater than when it is stationary. Therefore, the engine temperature is significantly higher when stationary than when in motion, resulting in a noticeable reduction in lifespan and an increased failure rate. To address this, during the cleaning process driven by the blower, a 1:20 gear ratio between the first and second gears accelerates the rotation of multiple armatures on the connecting plate, which are then covered by a permanent magnet cover. This generates an electromotive force by cutting magnetic lines of force between the permanent magnets and the armatures. This electromotive force is collected by a rectifier and transmitted to the battery for energy storage. When the vehicle is stationary, the battery supplies power to the air compressor. The design of an outer air layer encasing the circulating fluid pipe improves the heat dissipation efficiency of the circulating fluid pipe when the vehicle's air intake volume is reduced. The air compressor can be manually controlled via a button or integrated into the engine temperature control system, thus balancing the engine's heat dissipation under different conditions and effectively saving energy.

[0018] This invention provides a cooling device for a cementing truck engine. It has the following beneficial effects:

[0019] 1. This invention constructs a circulating heat dissipation system that combines air cooling and liquid cooling, enabling the cementing truck to achieve continuous and effective engine cooling in both driving and stationary operating states. Especially in operating conditions where the vehicle is stationary and air intake is limited, the air-assisted cooling structure can still maintain efficient heat exchange of the coolant, significantly improving the environmental adaptability of the engine temperature control device, avoiding engine high-temperature failures caused by insufficient heat dissipation, and extending the continuous operating time and service life of the equipment.

[0020] 2. This invention utilizes a fan rotation linkage structure to synchronously transmit power to the power generation and cleaning mechanisms via gear transmission, realizing the recycling of energy within the system. This ensures that the brush plate can automatically reciprocate, effectively removing impurities attached to the circulating fluid pipe and the surface of the heat sink. Furthermore, the process of relative cutting of magnetic field lines between the armature and the permanent magnet generates an induced electromotive force, and the obtained electrical energy is stored in the battery to drive auxiliary modules such as the air compressor, effectively improving the energy utilization rate and operating efficiency of the entire vehicle. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is an exploded view of the enclosure plate structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the enclosure plate of the present invention;

[0024] Figure 4 This is a schematic diagram of the first gear structure of the present invention;

[0025] Figure 5 This is an exploded view of the permanent magnet cover structure of the present invention;

[0026] Figure 6 This is an exploded view of the mounting box structure of the present invention;

[0027] Figure 7 This is a schematic cross-sectional view of the outer gas layer structure of the present invention;

[0028] Figure 8 This is a cross-sectional schematic diagram of the positioning box structure of the present invention.

[0029] The components include: 1. Cementing truck engine; 2. Enclosure plate; 3. Ventilation mesh box; 4. Fan; 5. Radiator box; 6. Drive rod; 7. First gear; 8. Second gear; 9. Fixing plate; 10. Connecting plate; 11. Permanent magnet cover; 12. Wire coil; 13. Armature; 14. Battery; 15. Air compressor; 16. Circulating water tank; 17. Mounting box; 18. Outer gas layer; 19. Positioning box; 20. Lead screw; 21. Worm gear; 22. Worm wheel; 23. Circulating fluid pipe; 24. Brush plate. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see the appendix Figure 1 - Appendix Figure 8 This invention provides a cooling device for a cementing truck engine, including a cementing truck engine 1. A surround plate 2 is installed at one end of the cementing truck engine 1. A ventilated mesh box 3 is provided outside the connection end between the surround plate 2 and the cementing truck engine 1. A fan 4 is installed at the output end of the cementing truck engine 1. A transmission rod 6 is fixedly connected to one end of the fan 4. A first gear 7 is fixedly connected to the outer wall of the transmission rod 6. A heat dissipation box 5 is fixedly connected to the front end inside the surround plate 2. A circulating water tank 16 is fixedly connected to both ends of the heat dissipation box 5. A circulating liquid pipe 23 is provided between the two circulating water tanks 16 and is connected to the internal liquid cooling pipe of the cementing truck engine 1 to form a circulating cooling pipe.

[0032] Specifically, a surrounding plate 2 is installed at one end of the cementing truck engine 1. This surrounding plate 2 mainly defines the installation area of ​​the fan and heat dissipation components, provides structural support, and also serves as heat insulation and air guiding in high vibration and high temperature environments. The surrounding plate 2 is fixed to the side housing of the engine 1 by welding or threading. The entire structure is made of heat-resistant alloy plate or anti-corrosion steel plate, and the surface can be powder-coated or hot-dip galvanized as needed to meet the weather resistance requirements of open-pit well operations. A ventilated mesh box 3 is installed on the outside of the connection end between the surrounding plate 2 and the cementing truck engine 1. The ventilated mesh box 3 adopts a metal wire mesh frame structure and is installed on the air intake side of the surrounding plate 2. It is mainly used to filter external particulate impurities and prevent larger dust particles from being sucked in, causing blockage of the cooling system or scale buildup on the surface of the liquid pipes. A fan 4 is installed at the output end of the cementing truck engine 1. The fan 4 is synchronously connected to the engine crankshaft through a coupling or pulley. Under continuous operation, it generates a large flow of air, which is directly introduced into the radiator to enhance airflow cooling. A transmission rod 6 is fixedly connected to one end of the fan 4. This transmission rod 6 is a solid or hollow shaft made of torque-resistant steel. Its function is to transfer the mechanical energy generated during the fan's rotation to the cleaning and linkage mechanism. A first gear 7 is fixedly connected to the outer wall of the transmission rod 6. This first gear 7 adopts a modular gear structure with high meshing precision. It is installed using a keyway fit supplemented by screw tightening to ensure no slippage or meshing deviation occurs at high speeds. A heat sink 5 is fixedly connected to the front end of the enclosure plate 2. This heat sink 5 has a hollow fin structure and multiple parallel heat conduction channels inside. Airflow accelerates the coolant heat exchange process. Its installation position is consistent with the fan's air outlet direction to maximize heat exchange efficiency. Circulating water tanks 16 are fixedly connected to both ends of the heat sink 5. These circulating water tanks 16 are closed structures with liquid storage buffering and temperature slow-drying functions, effectively balancing coolant pressure fluctuations caused by engine load fluctuations. A circulating liquid pipe 23 is installed between the two circulating water tanks 16. The circulating liquid pipe 23 is arranged horizontally and passes through the interior of the heat sink. Coolant flows through the liquid pipe, and the outside directly exchanges heat with the air, further enhancing the cooling effect. The two ends of the circulating liquid pipe 23 are respectively connected to the liquid cooling pipeline inside the cementing truck engine 1, forming a closed-loop circulating heat dissipation path. Driven by the engine water pump, the coolant is continuously circulated, effectively guiding the heat generated during engine operation to the heat sink. Through gas-liquid heat exchange, the engine operating temperature is maintained within a stable range, thereby ensuring that the cementing truck has stable thermal control capabilities under high load or continuous operation conditions.

[0033] Multiple fixed plates 9 are installed inside the surrounding plate 2. One end of one fixed plate 9 is rotatably connected to a second gear 8, and one end of the second gear 8 is fixedly connected to a connecting disc 10. A permanent magnet cover 11 is fixedly connected to one end of the fixed plate 9. Multiple armatures 13 are fixedly connected to the outer wall of the connecting disc 10. A coil 12 is fixedly connected to one end of the permanent magnet cover 11 and is fixedly connected to one end of the fixed plate 9. When the armatures 13 rotate, they cut magnetic lines of force with the permanent magnet cover 11, generating an electromotive force. The first gear 7 and the second gear 8 are meshed. The transmission rod 6 is rotatably connected to one end of the fixed plate 9. A rectifier is installed inside the coil 12, and one end of it is electrically connected to the battery 14.

[0034] Specifically, multiple fixing plates 9 are installed inside the enclosure plate 2. These fixing plates 9 are typically arranged along the wind turbine axis and are used to support the power generation structure and rotation linkage device. The plates are made of metal and have good rigidity and deformation resistance. In actual installation, the fixing plates 9 are connected to the inner wall of the enclosure plate 2 by bolts. Their positions can be precisely adjusted according to the internal structural dimensions to ensure stable support during the operation of high-speed rotating components. At least one of the fixing plates 9 has a second gear 8 rotatably connected to one end. This second gear 8 meshes with the aforementioned first gear 7 and is used to convert the rotational motion of the transmission rod 6 into high-speed rotation of the connecting disc according to a set gear ratio. One end of the second gear 8 is fixedly connected to a connecting disc 10. The connecting disc 10 is a disc structure with multiple armatures 13 evenly arranged along the circumference of its outer wall to realize the power generation function during mechanical rotation. A permanent magnet cover 11 is fixedly connected to one end of the fixed plate 9. This permanent magnet cover 11 has a closed cylindrical structure and contains multiple permanent magnets. The magnetic field direction is designed to be perpendicular to the tangent direction of the armature coil, ensuring sufficient magnetic flux change during subsequent rotation. The rotating connecting disc 10 drives the armature 13 to move at high speed. The armature 13 rotates within the magnetic field of the permanent magnet cover 11, generating relative cutting with the magnetic field lines, thus inducing an electromotive force within the armature winding and directly converting kinetic energy into electrical energy. A coil 12 is fixedly connected to one end of the permanent magnet cover 11. The coil 12 is fixedly installed at one end of the fixed plate 9 and has multi-channel cable lead grooves to guide the armature induced voltage output. A rectifier is installed inside the coil 12, electrically connected to the armature output line, rectifying the AC voltage into a stable DC voltage and outputting it to the battery 14 for energy storage and subsequent system use. The battery 14 is arranged inside the enclosure plate 2 or on the adjacent structural frame and connected to the coil 12 via cables to ensure the continuity and stability of power transmission. In addition, the first gear 7 and the second gear 8 maintain precise meshing with a constant transmission ratio, ensuring that when the transmission rod 6 rotates, it can effectively drive the connecting plate 10 to rotate, so that the armature 13 can continuously and stably cut the magnetic field lines. The system can achieve continuous power generation output under different load conditions. At the same time, the shaft end of the transmission rod 6 is reliably rotatably connected to the fixed plate 9, and the bearing support is set inside the opening of the fixed plate, which helps to maintain the overall rotational accuracy, extend the service life of the system, and reduce operating resistance.

[0035] Both ends of the heat sink 5 are fixedly connected to mounting boxes 17. A circulating fluid pipe 23 is fixedly connected to the adjacent side of the two mounting boxes 17. An outer air-coated layer 18 is fixedly connected to the outer wall of the circulating fluid pipe 23. A battery 14 is installed inside the enclosure plate 2. An air compressor 15 is installed inside the enclosure plate 2. The battery 14 is electrically connected to the air compressor 15. The output pipe of the air compressor 15 is connected to the inside of the outer air-coated layer 18.

[0036] Specifically, mounting boxes 17 are fixedly connected to both ends of the heat sink 5. The mounting boxes 17 adopt an integrated molded plate structure, and the material can be aluminum alloy or carbon steel, possessing strong structural support and corrosion resistance. Their main function is to form a stable connection interface at both ends of the heat sink, used to assist in the positioning and fixing of the circulating liquid pipes and auxiliary cooling structures. Circulating liquid pipes 23 are fixedly connected to adjacent sides of the two mounting boxes 17, passing between the mounting boxes and forming a heat exchange channel with the heat sink 5. The specific arrangement of the liquid pipes can be optimized according to the spacing of the heat sink fins and the air duct design to achieve sufficient cooling of the coolant. An outer gas-sealing layer 18 is fixedly connected to the outer wall of the circulating liquid pipe 23. The outer gas-sealing layer 18 is a flexible sealing structure made of high-temperature resistant rubber or composite polymer material. Its structure is covered on the surface of the liquid pipe by bonding, snapping, or embedding, forming a gas flow channel to improve the efficiency of heat transfer outside the pipe. A battery 14 is installed inside the enclosure plate 2. This battery 14 is an energy storage unit that receives and stores the induced voltage generated by the armature rotation, which is then used to power other electrical equipment. An air compressor 15 is also installed inside the enclosure plate 2. The air compressor 15 is fixedly connected to the internal structure of the enclosure plate via a bracket and is driven by direct current. Its power input is electrically connected to the battery 14. When the battery's energy storage reaches a set voltage range, the air compressor can start. The output pipeline of the air compressor 15 is connected to the interior of the outer gas layer 18 via a hose or directional air pipe. During operation, compressed air can be continuously injected into the outer gas layer 18, forming a gas circulation structure. This causes the airflow to form a thin layer that scours the outer surface of the liquid pipe at high speed, effectively improving the heat exchange efficiency per unit surface area of ​​the liquid pipe. This structure is particularly suitable for scenarios where natural air intake is insufficient under static conditions of the cementing truck. It can power the air compressor through its own power generation and energy storage without relying on an external air supply system, achieving dynamic enhancement of cooling capacity and thus improving the thermal control stability of the engine under static high-load conditions.

[0037] A cleaning assembly is installed at one end of the transmission rod 6. The cleaning assembly includes a positioning box 19, which is fixedly connected to the inner wall of the heat sink 5. A worm gear 21 is fixedly connected to one end of the transmission rod 6. A worm wheel 22 is rotatably connected to the inner wall of the positioning box 19. A lead screw 20 is fixedly connected to the middle of the worm wheel 22. Multiple brush plates 24 are threaded onto the outside of the lead screw 20. The brush plates 24 are slidably connected to the outer wall of the outer air envelope 18, and each end of the brush plate 24 is equipped with a brush. The worm gear 21 and the worm wheel 22 are meshed together, and the lead screw 20 is rotatably connected to the top of the positioning box 19.

[0038] Specifically, a cleaning assembly is installed at one end of the transmission rod 6. The core structure of this cleaning assembly is the positioning box 19, which is a closed box-shaped shell made of welded metal sheets. Its outer wall is fixedly connected to the inner wall of the heat sink 5 by bolts, serving as the mounting support unit for the worm and screw transmission mechanism. A worm 21 is directly fixedly connected to one end of the transmission rod 6. The worm 21 achieves rigid transmission with the transmission rod through a shaft end connector, enabling continuous rotation under the drive of the fan. A worm wheel 22 is installed inside the positioning box 19. The worm wheel 22 and the worm 21 form a typical vertical transmission structure. The two are connected by worm tooth meshing. When the worm rotates, it drives the worm wheel to output low speed and high torque. A screw 20 is fixedly connected to the middle of the worm wheel 22. The screw 20 is arranged along the length of the heat sink, and one end of it is rotatably connected to the top of the positioning box 19 through a bearing structure, enabling it to rotate stably under the drive of the worm wheel. The lead screw 20 has threads on its outer surface, and multiple brush plates 24 are connected to the threads. The brush plates reciprocate along the axial direction of the lead screw through thread engagement. The brush plate 24 has an arc-shaped support structure that adapts to the shape of the liquid pipe surface. Its body is slidably connected to the outer wall of the outer gas-coated layer 18, and can move axially back and forth along the pipe surface during the rotation of the lead screw 20. Brushes are provided at both ends of the brush plate 24. The brushes are made of high-temperature resistant nylon filaments or composite fiber materials, which have good elasticity and wear resistance. During movement, they can directly contact and remove dust, oil, mud, and other impurities adhering to the surface of the circulating liquid pipe or the inner wall of the heat sink. This structure is automatically linked when the fan is working, requiring no external power control. It can continuously maintain the cleanliness of the liquid pipe without interfering with the heat dissipation process, improve the efficiency of the heat exchange surface, and prevent the overall cooling capacity from being affected by dust accumulation.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for a cementing truck engine, comprising a cementing truck engine (1), characterized in that: A surround plate (2) is installed at one end of the cementing truck engine (1). A ventilated mesh box (3) is provided outside the connection end between the surround plate (2) and the cementing truck engine (1). A blower (4) is installed at the output end of the cementing truck engine (1). A transmission rod (6) is fixedly connected to one end of the blower (4). A cleaning component is installed at one end of the transmission rod (6). A first gear (7) is fixedly connected to the outer wall of the transmission rod (6). A heat sink (5) is fixedly connected to the front end of the inside of the surround plate (2). A circulating water tank (16) is fixedly connected to both ends of the heat sink (5). A space is provided between the two circulating water tanks (16). There is a circulating liquid pipe (23) and it is connected to the internal liquid cooling pipe of the cementing truck engine (1) to form a circulating heat dissipation pipe. Multiple fixed plates (9) are installed inside the enclosure plate (2). One end of one of the fixed plates (9) is rotatably connected to a second gear (8). One end of the second gear (8) is fixedly connected to a connecting plate (10). One end of the fixed plate (9) is fixedly connected to a permanent magnet cover (11). Multiple armatures (13) are fixedly connected to the outer wall of the connecting plate (10). One end of the permanent magnet cover (11) is fixedly connected to a coil (12). The coil (12) is fixedly connected to one end of the fixed plate (9).

2. The well-drilling truck engine cooling device according to claim 1, characterized in that: The cleaning assembly includes a positioning box (19), which is fixedly connected to the inner wall of the heat sink (5). One end of the transmission rod (6) is fixedly connected to a worm gear (21). The inner wall of the positioning box (19) is rotatably connected to a worm wheel (22). The middle part of the worm wheel (22) is fixedly connected to a lead screw (20). The lead screw (20) is threaded with multiple brush plates (24).

3. The cooling device for a cementing truck engine according to claim 1, characterized in that: Both ends of the heat sink (5) are fixedly connected to the mounting box (17), and the two mounting boxes (17) are fixedly connected to the adjacent side of the two mounting boxes (17), and the outer wall of the circulating liquid pipe (23) is fixedly connected to the outer air layer (18).

4. The cooling device for a cementing truck engine according to claim 2, characterized in that: The brush plate (24) is slidably connected to the outer wall of the outer gas layer (18), and brushes are provided at both ends of the brush plate (24).

5. The well-drilling truck engine cooling device according to claim 1, characterized in that: A battery (14) is installed inside the enclosure plate (2), and an air compressor (15) is installed inside the enclosure plate (2). The battery (14) is electrically connected to the air compressor (15).

6. The cooling device for a cementing truck engine according to claim 1, characterized in that: The coil (12) is fixedly connected to one end of the fixed plate (9). When the armature (13) rotates, it cuts the magnetic field lines with the permanent magnet cover (11) to generate an electromotive force.

7. A cementing truck engine cooling device according to claim 2, characterized in that: The worm (21) and worm wheel (22) are meshed together, and the lead screw (20) is rotatably connected to the top of the positioning box (19).

8. The cooling device for a cementing truck engine according to claim 1, characterized in that: The first gear (7) and the second gear (8) are meshed together, and the transmission rod (6) is rotatably connected to one end of the fixed plate (9).

9. A cementing truck engine cooling device according to claim 5, characterized in that: The coil (12) is equipped with a rectifier, one end of which is electrically connected to the battery (14).

10. A cementing truck engine cooling device according to claim 5, characterized in that: The output pipeline of the air compressor (15) is connected to the interior of the outer air layer (18).

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