Heat dissipation device for loading machine
By introducing a threaded rod and a motor-driven cleaning component into the loader's cooling system, the problem of dust contamination on the rotating plate was solved, achieving efficient heat dissipation and sealing, and improving the equipment's durability and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SHAN YU HEAVY MASCH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-01
AI Technical Summary
The cooling system of existing loaders is prone to dust accumulation on the rotating plate when the vent is open. This dust then enters the protective box after the vent is closed, contaminating internal components and reducing equipment durability.
A heat dissipation device was designed, comprising a protective shell, a rotating plate, a cooling fan, a threaded rod, and a motor. The rotating plate is cleaned by a cleaning component driven by the threaded rod and the motor. Combined with a sealing strip, the sealing performance is improved to prevent dust from entering, thus ensuring heat dissipation and equipment stability.
Effective cleaning of dust on the turntable improves the sealing and stability of the heat dissipation device, extends the service life of the equipment, and avoids dust contamination of internal components.
Smart Images

Figure CN224186840U_ABST
Abstract
Description
Loader cooling system Technical Field
[0001] This utility model relates to the field of heat dissipation equipment technology, specifically to a heat dissipation device for a loader. Background Technology
[0002] Because loaders have advantages such as fast operating speed, high efficiency, good maneuverability, and easy operation, they have become one of the main types of machines used in earthwork construction. Loaders transport heavy materials, so the heat dissipation performance of their engines must be guaranteed to avoid overheating and damage. Existing engine cooling equipment can effectively dissipate heat from the engine by using rotating fan blades.
[0003] A search revealed that a sealed, dustproof, large-capacity loader engine cooling device with patent publication number CN214169228U was published in China on September 10, 2021. The device is roughly described as including a protective box and an engine body. The engine body is housed inside the protective box. A partition is provided on one side of the engine body. A rotating rod is provided on one side of the partition. A cooling fan blade is connected to the outer ring of the rotating rod. A threaded rod is welded to one side of the rotating rod. A rotating sleeve is fitted around the outer ring of the threaded rod. A push rod is rotatably connected to the outer ring of the rotating sleeve.
[0004] While the aforementioned existing technical solution can prevent the internal components from being contaminated by dust due to the ventilation opening being open for a long time, dust easily adheres to the rotating plate when the ventilation opening is open. As a result, after the ventilation opening is closed, the rotating plate can easily bring the dust into the protective box, which in turn causes the internal components to be contaminated by dust and reduces the durability of the equipment. Summary of the Invention
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a heat dissipation device for loaders, which solves the problem mentioned in the background technology that when the vent is open, dust easily adheres to the rotating plate, and when the vent is closed, the rotating plate easily brings dust into the protective box, thereby causing internal components to be contaminated by dust and reducing the durability of the equipment.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation device for a loader, comprising a protective shell and multiple rotating plates. An engine is installed inside the protective shell, and a cooling fan is mounted on the engine. A heat dissipation vent is provided on the protective shell to cooperate with the cooling fan. Multiple evenly distributed fixing rods are provided on the inner wall of the heat dissipation vent. The multiple rotating plates are rotatably connected to the multiple fixing rods. A sliding groove is provided on one side of each of the multiple rotating plates. A control groove is provided on the inner wall of the heat dissipation vent. A first threaded rod is rotatably connected inside the control groove. The top end of the first threaded rod passes through the control groove and is connected to a rotating handle. The protective shell has a threaded connection with a first threaded component, on which multiple control blocks are fixedly connected. One end of each control block passes through a control groove and is slidably connected to a sliding groove. A first reciprocating screw is rotatably connected to the inner side wall of the protective shell near the top. A second threaded component is threadedly connected to the first reciprocating screw. A connecting rod is fixedly connected to the bottom end of the second threaded component. Multiple sliding components, each corresponding to a multiple rotating plate, are slidably connected to the connecting rod. A cleaning component that cooperates with the rotating plate is rotatably connected to the outer wall of the sliding component. A limiting frame that cooperates with the cleaning component is fixedly connected to each of the multiple rotating plates. A motor connected to the first reciprocating screw is installed on the outer wall of the protective shell.
[0009] By adopting the above technical solution, when the equipment is in use, rotating the rotating handle drives the first threaded rod to rotate, the first threaded rod drives the first threaded component to move, the first threaded component drives multiple control blocks to move, the control blocks cooperate with the sliding groove, and drive the rotating plate to rotate along the fixed rod, thereby opening the heat dissipation vent. When the engine is running, it drives the cooling fan to rotate, thereby facilitating engine cooling. At this time, the starter motor drives the first reciprocating screw to rotate, the first reciprocating screw drives the second threaded component to move, the second threaded component drives the connecting rod to move, the connecting rod drives the sliding component and the cleaning component to move, so that the cleaning component cleans the rotating plate. The limit frame is used to limit the cleaning component, so that the cleaning component is in close contact with the rotating plate, thereby facilitating the cleaning of the rotating plate and preventing the internal components from being contaminated by dust.
[0010] Optionally, sealing strips are fixedly connected to each of the multiple rotating plates.
[0011] By adopting the above technical solution, the sealing strip is used to improve the sealing between the two rotating plates when the heat dissipation port is closed, thereby improving the sealing of the heat dissipation port and reducing the entry of dust into the protective shell.
[0012] Optionally, the outer wall of the protective shell is bolted to a housing, and the motor is located inside the housing.
[0013] By adopting the above technical solution, the housing is used to protect the motor and reduce the probability of the motor being damaged by impacts, thereby improving the stability of the equipment.
[0014] Optionally, the inner wall of the protective shell is rotatably connected to a second reciprocating screw near the bottom. Both the first and second reciprocating screws are equipped with drive wheels, and a drive belt is connected between the two drive wheels. The bottom end of the connecting rod is fixedly connected to a third threaded component that is threadedly connected to the second reciprocating screw.
[0015] By adopting the above technical solution, when the first reciprocating screw rotates, it drives the transmission wheel to rotate. The transmission wheel cooperates with the transmission belt to drive the second reciprocating screw to rotate synchronously with the first reciprocating screw. The second reciprocating screw drives the third threaded component to move, so that the third threaded component moves synchronously with the second threaded component, thereby keeping the two ends of the connecting rod balanced, thus achieving the purpose of improving the stability of the equipment.
[0016] Optionally, the top of the protective shell is provided with a maintenance port, and a maintenance cover is bolted to the maintenance port.
[0017] By adopting the above technical solution, the maintenance port is used to facilitate personnel to maintain the components inside the protective shell, and the maintenance cover is used to shield and protect the maintenance port, reducing the probability of foreign objects entering the protective shell, thereby achieving the purpose of improving the service life of the equipment.
[0018] (III) Beneficial Effects
[0019] In summary, this utility model has at least one of the following beneficial technical effects:
[0020] The cooling device for this loader operates as follows: When the equipment is in use, rotating the handle drives the first threaded rod to rotate, which in turn moves the first threaded component. The first threaded component then moves multiple control blocks, which engage with sliding grooves to rotate the rotating plate along a fixed rod, thus opening the cooling vents. When the engine is running, the cooling fan rotates to facilitate engine cooling. At this time, the starter motor drives the first reciprocating screw to rotate, which in turn moves the second threaded component. The second threaded component moves the connecting rod, which in turn moves the sliding component and the cleaning component. This allows the cleaning component to clean the rotating plate. A limit frame is used to limit the cleaning component, ensuring it is in close contact with the rotating plate, thus facilitating cleaning of the rotating plate and preventing dust contamination of internal components. Attached Figure Description
[0021] Figure 1 is a schematic diagram of the first side view of the present invention;
[0022] Figure 2 is a schematic diagram of the first cross-sectional structure of this utility model;
[0023] Figure 3 is a partially enlarged structural schematic diagram of point A in Figure 2 of this utility model;
[0024] Figure 4 is a schematic diagram of the second cross-sectional structure of this utility model;
[0025] Figure 5 is a partially enlarged structural schematic diagram of point B in Figure 4 of this utility model;
[0026] Figure 6 is a schematic diagram of the third cross-sectional structure of this utility model;
[0027] Figure 7 is a partially enlarged structural schematic diagram of point C in Figure 6 of this utility model.
[0028] In the diagram: 1. Protective shell; 2. Rotating plate; 3. Engine; 4. Cooling fan; 5. Fixing rod; 6. Sliding groove; 7. First threaded rod; 8. Rotating handle; 9. First threaded component; 10. Control block; 11. First reciprocating screw; 12. Second threaded component; 13. Connecting rod; 14. Sliding component; 15. Cleaning component; 16. Limiting frame; 17. Motor; 18. Sealing strip; 19. Housing; 20. Second reciprocating screw; 21. Transmission wheel; 22. Transmission belt; 23. Third threaded component; 24. Maintenance cover. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] The present invention will be further described in detail below with reference to the accompanying drawings.
[0031] Referring to Figures 1-7, a cooling device for a loader includes a protective shell 1 and multiple rotating plates 2. An engine 3 is installed inside the protective shell 1, and a cooling fan 4 is provided on the engine 3. The protective shell 1 has cooling vents that cooperate with the cooling fan 4. Multiple evenly distributed fixing rods 5 are provided on the inner wall of the cooling vents. The multiple rotating plates 2 are rotatably connected to the multiple fixing rods 5. A sliding groove 6 is provided on one side of each of the multiple rotating plates 2. A control groove is provided on the inner wall of the cooling vents. A first threaded rod 7 is rotatably connected inside the control groove. A rotating handle 8 is connected to the top through the control groove. A first threaded component 9 is threaded onto the first threaded rod 7. Multiple control blocks 10 are fixedly connected to the first threaded component 9. One end of each control block 10 passes through the control groove and is slidably connected to the sliding groove 6. A first reciprocating screw 11 is rotatably connected to the inner side wall of the protective shell 1 near the top. A second threaded component 12 is threaded onto the first reciprocating screw 11. A connecting rod 13 is fixedly connected to the bottom end of the second threaded component 12. Multiple sliding components 14, each corresponding to one of the multiple rotating plates 2, are slidably connected to the connecting rod 13. A cleaning component 15, which mates with the rotating plate 2, is rotatably connected to the outer wall of the sliding component 14. Each of the multiple rotating plates 2 is fixedly connected to a limiting frame 16, which mates with the cleaning component 15. A motor 17, connected to the first reciprocating screw 11, is installed on the outer wall of the protective shell 1. When the equipment is in use, rotating the rotating handle 8 drives the first threaded rod 7 to rotate, which in turn drives the first threaded component 9 to move. The first threaded component 9 then drives multiple control blocks 10 to move. The control blocks 10 mate with the sliding groove 6, causing the rotating plate 2 to rotate along the fixed rod 5, thereby opening the heat dissipation vents and starting the engine. When the engine 3 is running, it drives the cooling fan 4 to rotate, thereby facilitating the cooling of the engine 3. At this time, the starter motor 17 drives the first reciprocating screw 11 to rotate. The first reciprocating screw 11 drives the second threaded part 12 to move. The second threaded part 12 drives the connecting rod 13 to move. The connecting rod 13 drives the sliding part 14 and the cleaning part 15 to move, so that the cleaning part 15 cleans the rotating plate 2. The limiting frame 16 is used to limit the cleaning part 15, so that the cleaning part 15 is in close contact with the rotating plate 2, thereby facilitating the cleaning of the rotating plate 2 and preventing the internal components from being contaminated by dust.
[0032] Referring to Figures 6 and 7, sealing strips 18 are fixedly connected to multiple rotating plates 2. The sealing strips 18 are used to improve the sealing between the two rotating plates 2 when the heat dissipation vent is closed, thereby improving the sealing of the heat dissipation vent and reducing the entry of dust into the protective shell 1.
[0033] Referring to Figures 1-3, a housing 19 is bolted to the outer wall of the protective housing 1. The motor 17 is located inside the housing 19. The housing 19 is used to protect the motor 17 and reduce the probability of the motor 17 being damaged by impact, thereby improving the stability of the equipment.
[0034] Referring to Figures 2-7, a second reciprocating screw 20 is rotatably connected to the inner wall of the protective shell 1 near the bottom. Both the first reciprocating screw 11 and the second reciprocating screw 20 are equipped with drive wheels 21, and a drive belt 22 connects the two drive wheels 21. A third threaded component 23, threadedly connected to the second reciprocating screw 20, is fixedly connected to the bottom of the connecting rod 13. When the first reciprocating screw 11 rotates, it drives the drive wheels 21 to rotate. The drive wheels 21 cooperate with the drive belt 22 to drive the second reciprocating screw 20 to rotate synchronously with the first reciprocating screw 11. The second reciprocating screw 20 drives the third threaded component 23 to move, causing the third threaded component 23 to move synchronously with the second threaded component 12. This keeps the two ends of the connecting rod 13 balanced, thereby improving the stability of the equipment.
[0035] Referring to Figure 1, a maintenance port is provided at the top of the protective shell 1. A maintenance cover 24 is bolted to the maintenance port. The maintenance port is used to facilitate personnel to maintain the components inside the protective shell 1. The maintenance cover 24 is used to cover and protect the maintenance port, reducing the probability of foreign objects entering the protective shell 1, thereby improving the service life of the equipment.
[0036] In summary, the working principle and process of the cooling device for this loader are as follows: When the equipment is in use, rotating the handle 8 drives the first threaded rod 7 to rotate. The first threaded rod 7 drives the first threaded component 9 to move. The first threaded component 9 drives multiple control blocks 10 to move. The control blocks 10 cooperate with the sliding groove 6, causing the rotating plate 2 to rotate along the fixed rod 5, thus opening the heat dissipation vents. When the engine 3 is running, it drives the cooling fan 4 to rotate, facilitating heat dissipation for the engine 3. At this time, the starter motor 17 drives the first reciprocating screw 11 to rotate. The first reciprocating screw 11 drives the second threaded component 12 to move. The second threaded component 12 drives the connecting rod 13 to move. The connecting rod 13 drives the sliding component 14 and the cleaning component 15 to move, allowing the cleaning component 15 to clean the rotating plate 2. The limiting frame 16 is used to limit the cleaning component 15, ensuring it is in close contact with the rotating plate 2, thus facilitating cleaning of the rotating plate 2 and preventing dust contamination of internal components. The sealing strip 18 is used for... When the heat dissipation vent is closed, the sealing between the two rotating plates 2 is improved, thereby reducing the amount of dust entering the protective shell 1. The shell 19 is used to protect the motor 17, reducing the probability of the motor 17 being damaged by impacts, thereby improving the stability of the equipment. When the first reciprocating screw 11 rotates, it drives the transmission wheel 21 to rotate. The transmission wheel 21 cooperates with the transmission belt 22 to drive the second reciprocating screw 20 to rotate synchronously with the first reciprocating screw 11. The second reciprocating screw 20 drives the third threaded component 23 to move, so that the third threaded component 23 moves synchronously with the second threaded component 12, thereby keeping the two ends of the connecting rod 13 balanced, thereby improving the stability of the equipment. The maintenance port is used to facilitate personnel to maintain the components inside the protective shell 1. The maintenance cover 24 is used to cover and protect the maintenance port, reducing the probability of foreign objects entering the protective shell 1, thereby improving the service life of the equipment.
[0037] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A heat sink for a loader comprising a protective shell (1), characterised in that: The device includes multiple rotating plates (2). An engine (3) is installed inside the protective shell (1). A cooling fan (4) is provided on the engine (3). A heat dissipation port that cooperates with the cooling fan (4) is provided on the protective shell (1). Multiple evenly distributed fixing rods (5) are provided on the inner side wall of the heat dissipation port. The multiple rotating plates (2) are rotatably connected to the multiple fixing rods (5). A sliding groove (6) is provided on one side of each of the multiple rotating plates (2). A control groove is provided on the inner side wall of the heat dissipation port. A first threaded rod (7) is rotatably connected inside the control groove. A rotating handle (8) is connected to the top of the first threaded rod (7) through the control groove. A first threaded component (9) is threadedly connected to the first threaded rod (7). Multiple control blocks (10) are fixedly connected to the first threaded component (9). One end of each of the multiple control blocks (10) is slidably connected to the control groove and the sliding groove (6). The inner side wall of the protective shell (1) is rotatably connected to the top of the first reciprocating screw (11). The first reciprocating screw (11) is threaded with a second threaded part (12). The bottom end of the second threaded part (12) is fixedly connected to a connecting rod (13). The connecting rod (13) is slidably connected with multiple sliding parts (14) corresponding to multiple rotating plates (2). The outer wall of the sliding part (14) is rotatably connected with a cleaning part (15) that cooperates with the rotating plate (2). Each of the multiple rotating plates (2) is fixedly connected with a limiting frame (16) that cooperates with the cleaning part (15). The outer wall of the protective shell (1) is equipped with a motor (17) that is connected to the first reciprocating screw (11).
2. The radiator for a loader according to claim 1, characterized by: Each of the multiple rotating plates (2) is fixedly connected with a sealing strip (18).
3. The heat dissipation device for a loader according to claim 1, characterized in that: The outer wall of the protective shell (1) is bolted to a housing (19), and the motor (17) is located inside the housing (19).
4. The radiator for a loader as set forth in claim 1, wherein: The inner wall of the protective shell (1) is rotatably connected to a second reciprocating screw (20) near the bottom. Both the first reciprocating screw (11) and the second reciprocating screw (20) are provided with transmission wheels (21). A transmission belt (22) is connected between the two transmission wheels (21). The bottom end of the connecting rod (13) is fixedly connected to a third threaded component (23) that is threadedly connected to the second reciprocating screw (20).
5. The heat dissipation device for a loader according to claim 1, characterized in that: The top of the protective shell (1) is provided with a maintenance port, and a maintenance cover (24) is bolted to the maintenance port.
Citation Information
Patent Citations
Engine heat dissipation device for sealed dustproof large-bucket-capacity loader
CN214169228U