Radiator assembly and petroleum engineering mechanical vehicle

Abstract

According to the radiator assembly and the petroleum engineering mechanical vehicle, power transmission of a cooling fan is achieved through a transmission belt of a first belt wheel and a second belt wheel, a driving motor does not need to be independently arranged for the cooling fan, and the cooling fan is driven by redundant power of an existing power system of the vehicle; extra space occupation and heat accumulation caused by an independent motor are avoided, the translation adjusting assembly can change the tension of a transmission belt by adjusting the position of a second belt pulley, stable power transmission is ensured, the main frame and the auxiliary frame are fixedly connected to form a compact integrated module, a cooling fan is arranged in the main frame, and the auxiliary frame bears the translation adjusting assembly. The split type design optimizes the space utilization rate, reduces the occupation of the vehicle installation space by the heat dissipation system, is especially suitable for operation scenes sensitive to the space such as petroleum engineering machinery, and further reduces the overall temperature rise risk of the system due to the fact that an independent motor is omitted and the heat source of the heat dissipation system is reduced.

Description

Technical Field

[0001] This application relates to the field of heat dissipation for petroleum engineering machinery vehicles, specifically to a radiator assembly and a petroleum engineering machinery vehicle. Background Technology

[0002] In the power and hydraulic systems of petroleum engineering machinery, the radiator system is a crucial component ensuring its normal operation. As national requirements for emissions and environmental protection of petroleum machinery engines continue to increase, the types and quantities of radiators are also constantly expanding.

[0003] In related technologies, most traditional radiator assemblies have their own motors to drive their own cooling fans for heat dissipation. When installed on petroleum engineering machinery vehicles, radiator assemblies with their own motors will occupy too much space, and the separate motors will inevitably lead to an increase in heat. Summary of the Invention

[0004] This application provides a radiator assembly and a petroleum engineering machinery vehicle, which can solve the technical problems of most traditional radiator assemblies having their own motors to drive their own cooling fans for heat dissipation, which would occupy too much space and would inevitably lead to an increase in heat due to having their own motors.

[0005] In a first aspect, embodiments of this application provide a radiator assembly, comprising:

[0006] Main frame, with a cooling fan installed inside the main frame;

[0007] A sub-frame is fixed to one side of the main frame, and a first pulley is sleeved on the outer wall of the first shaft of the cooling fan.

[0008] A translation adjustment assembly is fixed to the sub-frame, and a second rotating shaft is installed at the translation end of the translation adjustment assembly. A second pulley is sleeved on the outer wall of the second rotating shaft, and the same transmission belt is sleeved on the outer walls of the first pulley and the second pulley.

[0009] In conjunction with the first aspect, in one embodiment, the translation adjustment component includes:

[0010] A support plate, which is fixed to the sub-frame, has two parallel adjustment holes.

[0011] A fixed base is fixed to the support plate, and the fixed base is fixed with two parallel guide columns, the length direction of the guide columns being consistent with the length direction of the adjustment hole;

[0012] A movable seat, which is slidably connected to the two guide columns, is equipped with a bearing seat, and the second rotating shaft is mounted on the bearing seat;

[0013] A fixing adjusting bolt is provided, which passes through the adjusting hole and the movable seat in sequence, and the movable seat is fixed to the support plate by a fixing nut.

[0014] In conjunction with the first aspect, in one embodiment, the translation adjustment component includes:

[0015] A lead screw, which is mounted on the sub-frame, and a lead screw pair is slidably mounted on the outer wall of the lead screw;

[0016] A limiting guide rod is provided, which is aligned with the length direction of the lead screw and fixed to the sub-frame. The limiting guide rod is slidably connected to the lead screw pair.

[0017] The second rotating shaft is rotatably mounted on the lead screw assembly via a bearing housing.

[0018] In conjunction with the first aspect, in one embodiment, the radiator assembly further includes:

[0019] A protective cover is fixed to the sub-frame, and the first rotating shaft, the second rotating shaft, and the translation adjustment component are all located inside the protective cover.

[0020] In conjunction with the first aspect, in one embodiment, the protective shield includes:

[0021] The first protective plate is generally arched.

[0022] The second protective plate and the third protective plate are both fixed to the sub-frame, and the first rotating shaft, the second rotating shaft and the translation adjustment component are all located between the second protective plate and the third protective plate;

[0023] The first protective plate is detachably fixed between the top ends of the second and third protective plates.

[0024] In conjunction with the first aspect, in one embodiment, the second protective plate and the third protective plate each have a slot on their opposite sides, the slots extending obliquely upwards, and the two ends of the first protective plate engaging in the corresponding slots.

[0025] In conjunction with the first aspect, in one embodiment, the radiator assembly further includes:

[0026] A seated tension sensor is mounted on the sub-frame, and the sensing roller of the seated tension sensor is in contact with the inner wall of the transmission belt.

[0027] The controller is connected to the seated tension sensor and the cooling fan. The controller is used to control the cooling fan to stop working when the pressure value monitored by the seated tension sensor exceeds the set range.

[0028] In conjunction with the first aspect, in one embodiment, the radiator assembly further includes:

[0029] An alarm is provided, and the controller is signal-connected to the alarm. The controller is used to control the cooling fan to stop working and the alarm to sound an alarm when the pressure value monitored by the seated tension sensor exceeds the set range.

[0030] In conjunction with the first aspect, in one embodiment, a rubber shock-absorbing pad is provided between the sides of the main frame and the sub-frame that face each other.

[0031] Secondly, embodiments of this application provide a petroleum engineering machinery vehicle, which includes:

[0032] An engine, wherein a third pulley is fitted onto the outer wall of the engine;

[0033] Main frame, with a cooling fan installed inside the main frame;

[0034] A sub-frame is fixed to one side of the main frame, and the first shaft of the cooling fan is mounted on the sub-frame, with a first pulley sleeved on the outer wall of the first shaft;

[0035] A translation adjustment assembly is fixed to the sub-frame, and a second rotating shaft is installed at the telescopic end of the translation adjustment assembly. A second pulley is sleeved on the outer wall of the second rotating shaft, and the outer walls of the first pulley, the second pulley, and the third pulley are sleeved with the same transmission belt.

[0036] The beneficial effects of the technical solutions provided in this application include:

[0037] The cooling fan transmits power via a drive belt between the first and second pulleys, eliminating the need for a separate drive motor. This design utilizes the redundant power of the vehicle's existing powertrain to drive the cooling fan, avoiding the additional space occupation and heat accumulation associated with a separate motor. The translation adjustment component changes the drive belt tension by adjusting the position of the second pulley, ensuring stable power transmission. The fixed connection between the main frame and the sub-frame forms a compact integrated module. The cooling fan is built into the main frame, while the translation adjustment component is carried by the sub-frame. This split design optimizes space utilization and reduces the cooling system's footprint on the vehicle's installation space, making it particularly suitable for space-sensitive operating scenarios such as oilfield engineering machinery. By eliminating the independent motor, the heat source of the cooling system itself is reduced, further lowering the overall system temperature rise risk. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A three-dimensional structural schematic diagram of an embodiment of a heat sink assembly;

[0040] Figure 2 A perspective structural schematic diagram of another embodiment of the radiator assembly;

[0041] Figure 3 This is an enlarged structural diagram of the translation component.

[0042] In the diagram: 1. Main frame; 2. Cooling fan; 3. First rotating shaft; 4. First pulley; 5. Sub-frame; 6. Translation adjustment assembly; 61. Support plate; 62. Adjustment hole; 63. Fixed seat; 64. Guide column; 65. Moving seat; 66. Fixed adjustment bolt; 7. Second rotating shaft; 8. Second pulley; 9. Third pulley; 10. Protective cover; 101. Second protective plate; 102. First protective plate; 103. Third protective plate. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0044] This application provides a radiator assembly and a petroleum engineering machinery vehicle, which can solve the technical problems of most traditional radiator assemblies having their own motors to drive their own cooling fans for heat dissipation, which would occupy too much space and would inevitably lead to an increase in heat due to having their own motors.

[0045] Firstly, such as Figure 1 and Figure 2 As shown, this application embodiment provides a radiator assembly, which includes: a main frame 1, in which a cooling fan 2 is installed; a sub-frame 5, which is fixed to one side of the main frame 1, and a first pulley 4 is sleeved on the outer wall of the first rotating shaft 3 of the cooling fan 2; and a translation adjustment assembly 6, which is fixed to the sub-frame 5, and a second rotating shaft 7 is installed on the translation end of the translation adjustment assembly 6, a second pulley 8 is sleeved on the outer wall of the second rotating shaft 7, and the same transmission belt is sleeved on the outer walls of the first pulley 4 and the second pulley 8.

[0046] In this embodiment, the cooling fan 2 transmits power through the transmission belt between the first pulley 4 and the second pulley 8, eliminating the need for a separate drive motor. This design utilizes the redundant power of the vehicle's existing power system to drive the cooling fan 2, avoiding the additional space occupation and heat accumulation caused by an independent motor. The translation adjustment component 6 can change the transmission belt tension by adjusting the position of the second pulley 8, ensuring stable power transmission. The fixed connection between the main frame 1 and the sub-frame 5 forms a compact integrated module. The cooling fan 2 is built into the main frame 1, and the sub-frame 5 carries the translation adjustment component 6. This split design optimizes space utilization and reduces the space occupied by the cooling system in the vehicle installation space. It is especially suitable for space-sensitive operating scenarios such as petroleum engineering machinery. Since the independent motor is eliminated, the heat source of the cooling system itself is reduced, further reducing the risk of overall system temperature rise.

[0047] In conjunction with the first aspect, in one implementation, such as Figure 3 As shown, the translation adjustment assembly 6 includes: a support plate 61, which is fixed to the sub-frame 5 and has two parallel adjustment holes 62; a fixed seat 63, which is fixed to the support plate 61 and has two parallel guide columns 64 fixed to it, the length direction of which is consistent with the length direction of the adjustment holes 62; a movable seat 65, which is slidably connected to the two guide columns 64 and has a bearing seat installed thereon, and the second rotating shaft 7 is installed in the bearing seat; and a fixing adjustment bolt 66, which passes through the adjustment holes 62 and the movable seat 65 in sequence, and is fixed to the support plate 61 by a fixing nut.

[0048] In this embodiment, the sliding connection between the two parallel guide columns 64 and the movable seat 65 ensures that the second rotating shaft 7 moves linearly along the length of the adjustment hole 62, avoiding skewness or jamming. The rigid support of the guide columns 64 improves the adjustment stability. By fixing the adjustment bolts 66 through the adjustment hole 62 and the movable seat 65, the movable seat 65 is positioned in multiple stages on the support plate 61. During operation, it is only necessary to loosen the fixing nut, slide the movable seat 65 along the adjustment hole 62 to the target position, and then lock it to complete the rapid adjustment of the transmission belt tension. The support plate 61 is fixed to the sub-frame 5 by bolts, and the fixed seat 63 is independently installed on the support plate 61, which facilitates the individual disassembly, maintenance, or replacement of the guide columns 64. The symmetrical design of the two parallel adjustment holes 62 and the two guide columns 64 enhances the uniformity of the force on the movable seat 65. When the movable seat slides freely on the guide columns 64, the rigid locking of the fixing adjustment bolts 66 and the fixing nut ensures that the position of the adjusted second pulley 8 is fixed, preventing displacement caused by vibration.

[0049] In conjunction with the first aspect, in one embodiment, the translation adjustment assembly 6 includes: a lead screw, which is mounted on the sub-frame 5, and a lead screw pair is slidably mounted on the outer wall of the lead screw; a limiting guide rod, which is aligned with the length direction of the lead screw and fixed to the sub-frame 5, and the limiting guide rod is slidably connected to the lead screw pair; and a second rotating shaft 7 is rotatably mounted on the lead screw pair via a bearing seat.

[0050] In this embodiment, the lead screw is fixed to the sub-frame 5. The lead screw pair moves axially along the lead screw through threaded engagement. The limiting guide rod is set parallel to the lead screw, and its sliding connection with the lead screw pair forms a rigid guide to limit the radial offset of the lead screw pair. Specifically, the limiting guide rod can be a high-precision linear guide (such as a transverse slide rail and slider assembly). Through the cooperation of the slider and the guide rail, the lead screw pair can only translate in a single direction, avoiding motion jamming caused by lateral force. The second rotating shaft 7 is connected to the lead screw pair through a bearing seat. The horizontal movement of the second rotating shaft 7 is achieved through the lead screw, the lead screw pair, and the limiting guide rod, thus completing the rapid adjustment of the transmission belt tension.

[0051] In conjunction with the first aspect, in one embodiment, the radiator assembly further includes: a protective cover 10, which is fixed to the sub-frame 5, and the first rotating shaft 3, the second rotating shaft 7, and the translation adjustment assembly 6 are all located inside the protective cover 10.

[0052] In this embodiment, the protective cover 10 completely or partially encloses the first rotating shaft 3, the second rotating shaft 7, and the translation adjustment component 6 inside the sub-frame 5, effectively blocking external dust, oil, and other contaminants from entering the transmission mechanism and preventing transmission failure or increased wear due to foreign object jamming. For example, in the high-dust working environment of petroleum engineering machinery, the protective cover can reduce the adhesion of particulate matter on the surface of the transmission belt and extend its service life. The protective cover 10 is made of metal or high-strength engineering plastic to form a physical isolation barrier, preventing operators from accidentally touching the high-speed rotating transmission belt or rotating shaft components and improving equipment safety. At the same time, a sound-absorbing material layer such as polyurethane foam can be set inside the protective cover to reduce system operating noise and improve the working environment.

[0053] In conjunction with the first aspect, in one implementation, such as Figure 2 As shown, the protective cover 10 includes: a first protective plate 102, which is generally arched; a second protective plate 101 and a third protective plate 103, both of which are fixed to the sub-frame 5, and the first rotating shaft 3, the second rotating shaft 7, and the translation adjustment assembly 6 are all located between the second protective plate 101 and the third protective plate 103; the first protective plate 102 is detachably fixed between the top ends of the second protective plate 101 and the third protective plate 103.

[0054] In this embodiment, the first protective plate 102 adopts an arched design and is detachably fixed to the top of the second protective plate 101 and the third protective plate 103 by bolts or buckles. The arched structure can disperse external impact force, for example, to disperse the collision force when subjected to the impact of objects falling from the top of the equipment. The second protective plate 101 and the third protective plate 103 are vertically fixed to one side of the sub-frame 5 to form a U-shaped protective cavity, which surrounds the first rotating shaft 3, the second rotating shaft 7 and the translation adjustment component 6.

[0055] In conjunction with the first aspect, in one embodiment, the second protective plate 101 and the third protective plate 103 each have a slot on their respective facing sides, the slots extending obliquely upwards, and the two ends of the first protective plate 102 are engaged in the corresponding slots.

[0056] In this embodiment, the slots on the inner sides of the second protective plate 101 and the third protective plate 103 are designed to extend obliquely upward (the tilt angle range is 15° to 30°). After the two ends of the first protective plate 102 are inserted, they are naturally pressed down by gravity to form a self-locking effect. During maintenance, it is only necessary to lift the first protective plate 102 upward to expose the internal transmission components.

[0057] In conjunction with the first aspect, in one embodiment, the radiator assembly further includes: a pedestal tension sensor mounted on the sub-frame 5, wherein the sensing roller of the pedestal tension sensor is in contact with the inner wall of the transmission belt; and a controller connected to the pedestal tension sensor and the cooling fan 2, wherein the controller is used to control the cooling fan 2 to stop working when the pressure value monitored by the pedestal tension sensor exceeds a set range.

[0058] In this embodiment, the seated tension sensor is fixed to the side wall of the sub-frame 5 using a shaft mounting method. The sensing pressure roller maintains a constant contact pressure with the inner side of the transmission belt through a spring pre-tightening mechanism. If the pressure value exceeds the upper limit (e.g., >420N), it is determined that the transmission belt is too tight or stuck, and the power supply to the cooling fan 2 is immediately cut off. If the pressure value exceeds or falls below the lower limit (e.g., <80N), it is determined that the transmission belt is loose or broken, and the shutdown protection is executed.

[0059] In conjunction with the first aspect, in one embodiment, the radiator assembly further includes: an alarm, a controller connected to the alarm signal, the controller being used to control the cooling fan 2 to stop working and the alarm to sound an alarm when the pressure value monitored by the seated tension sensor exceeds a set range.

[0060] In this embodiment, the controller can preset two levels of alarm thresholds. The first level alarm (pressure over-limit ±10%) triggers intermittent buzzing and flashing of a yellow warning light, and the cooling fan 2 reduces its speed to 50%. The second level alarm (pressure over-limit ±20%) activates continuous buzzing and a red rotating warning light, immediately cuts off the power to the cooling fan 2, and sends a fault code to the host computer.

[0061] In conjunction with the first aspect, in one embodiment, a rubber shock-absorbing pad is provided between the main frame 1 and the sub-frame 5 on their opposite sides.

[0062] In this embodiment, the rubber damping pad converts the mechanical vibration energy generated by the cooling fan 2 during operation into heat energy dissipation through its viscoelastic properties, effectively preventing vibration from being transmitted from the main frame 1 to the sub-frame 5.

[0063] Secondly, such as Figure 1 and Figure 2 As shown, this application embodiment provides a petroleum engineering machinery vehicle, which includes: an engine, with a third pulley 9 sleeved on the outer wall of the engine; a main frame 1, with a cooling fan 2 installed inside the main frame 1; a sub-frame 5, fixed to one side of the main frame 1, with a first rotating shaft 3 of the cooling fan 2 installed on the sub-frame 5, and a first pulley 4 sleeved on the outer wall of the first rotating shaft 3; a translation adjustment assembly 6, fixed to the sub-frame 5, with a second rotating shaft 7 installed on the telescopic end of the translation adjustment assembly 6, and a second pulley 8 sleeved on the outer wall of the second rotating shaft 7, and the outer walls of the first pulley 4, the second pulley 8 and the third pulley being sleeved with the same transmission belt.

[0064] In this embodiment, the engine serves as the vehicle's power source. A third pulley 9 is fitted onto its outer wall, responsible for transmitting power to the radiator assembly. The cooling fan 2 is installed inside the main frame 1 and is a key component of the cooling system, responsible for accelerating airflow and improving cooling efficiency. The sub-frame 5 is fixed to one side of the main frame 1, supporting the first shaft 3 and the first pulley 4 of the cooling fan 2 to achieve stable fan operation. The translation adjustment component 6 is fixed to the sub-frame 5, with a second shaft 7 installed at its telescopic end. A second pulley 8 is fitted onto its outer wall. The position of the second pulley 8 can be flexibly adjusted through the translation adjustment component 6. The transmission belt is fitted onto the outer walls of the first pulley 4, the second pulley 8, and the third pulley 9, forming a closed-loop transmission system. This design allows power to be transmitted to the cooling fan 2 through the transmission belt when the engine is running. At the same time, the translation adjustment component 6 can adjust the tension of the transmission belt to ensure stable power transmission.

[0065] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0066] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A radiator assembly, characterized in that, It includes: The main frame (1) is equipped with a cooling fan (2). Sub-frame (5), the sub-frame (5) is fixed to one side of the main frame (1), and the first shaft (3) of the cooling fan (2) is sleeved with a first pulley (4); Translation adjustment component (6) is fixed to the sub-frame (5), and a second rotating shaft (7) is installed at the translation end of the translation adjustment component (6). A second pulley (8) is sleeved on the outer wall of the second rotating shaft (7), and the same transmission belt is sleeved on the outer walls of the first pulley (4) and the second pulley (8).

2. The radiator assembly as described in claim 1, characterized in that, The translation adjustment component (6) includes: A support plate (61) is fixed to the sub-frame (5), and the support plate (61) has two parallel adjustment holes (62). A fixed base (63) is fixed to the support plate (61), and the fixed base (63) is fixed with two parallel guide columns (64), the length direction of the guide columns (64) being consistent with the length direction of the adjustment hole (62); A movable seat (65) is slidably connected to two guide posts (64), and a bearing seat is mounted on the movable seat (65), and the second rotating shaft (7) is mounted on the bearing seat; A fixing adjusting bolt (66) is used, which passes through the adjusting hole (62) and the movable seat (65) in sequence, and the movable seat (65) is fixed to the support plate (61) by a fixing nut.

3. The radiator assembly as described in claim 1, characterized in that, The translation adjustment component (6) includes: A lead screw is mounted on the sub-frame (5), and a lead screw pair is slidably mounted on the outer wall of the lead screw. A limiting guide rod is provided, the length direction of which is consistent with that of the lead screw and is fixed to the sub-frame (5), and the limiting guide rod is slidably connected to the lead screw pair; The second rotating shaft (7) is rotatably mounted on the lead screw pair via a bearing seat.

4. The radiator assembly as described in claim 1, characterized in that, The radiator assembly also includes: The protective cover (10) is fixed to the sub-frame (5), and the first rotating shaft (3), the second rotating shaft (7) and the translation adjustment component (6) are all located inside the protective cover (10).

5. The radiator assembly as described in claim 4, characterized in that, The protective cover (10) includes: The first protective plate (102) is generally arched; The second protective plate (101) and the third protective plate (103) are both fixed to the sub-frame (5), and the first rotating shaft (3), the second rotating shaft (7) and the translation adjustment component (6) are all located between the second protective plate (101) and the third protective plate (103); The first protective plate (102) is detachably fixed between the top ends of the second protective plate (101) and the third protective plate (103).

6. The radiator assembly as described in claim 5, characterized in that, The second protective plate (101) and the third protective plate (103) are provided with slots on their opposite sides, and the slots extend obliquely upwards. The two ends of the first protective plate (102) are engaged in the corresponding slots.

7. The radiator assembly as claimed in claim 1, characterized in that, The radiator assembly also includes: A seated tension sensor is mounted on the subframe (5), and the sensing roller of the seated tension sensor is in contact with the inner wall of the transmission belt. The controller is connected to the seated tension sensor and the cooling fan (2) by signal. The controller is used to control the cooling fan (2) to stop working when the pressure value monitored by the seated tension sensor exceeds the set range.

8. The radiator assembly as described in claim 7, characterized in that, The radiator assembly also includes: An alarm is provided, and the controller is signal-connected to the alarm. The controller is used to control the cooling fan (2) to stop working and the alarm to sound an alarm when the pressure value monitored by the seat tension sensor exceeds the set range.

9. The radiator assembly as claimed in claim 1, characterized in that, A rubber shock-absorbing pad is provided between the main frame (1) and the sub-frame (5) on their opposite sides.

10. A petroleum engineering machinery vehicle, characterized in that, It includes: An engine, wherein a third pulley (9) is fitted onto the outer wall of the engine; The main frame (1) is equipped with a cooling fan (2). Sub-frame (5), the sub-frame (5) is fixed to one side of the main frame (1), and the first rotating shaft (3) of the cooling fan (2) is installed on the sub-frame (5), and the outer wall of the first rotating shaft (3) is sleeved with a first pulley (4); Translation adjustment component (6), the translation adjustment component (6) is fixed to the sub-frame (5), and the telescopic end of the translation adjustment component (6) is equipped with a second rotating shaft (7), the outer wall of the second rotating shaft (7) is sleeved with a second pulley (8), and the outer walls of the first pulley (4), the second pulley (8) and the third pulley are sleeved with the same transmission belt.

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