Shutter of mine truck radiator and air volume control method of mine truck radiator

Abstract

The invention discloses a mining truck radiator shutter. A frame body is fixed on the front end face of a radiator by means of a first bolt; the driving device is arranged on the top face of the frame of the frame body and used for driving the blade assembly to adjust the blade angle. The blade assembly is arranged in the frame body and used for adjusting the air inlet amount of the radiator. The connecting device is arranged between the driving arm of the driving device and the blade assembly and used for hinging the driving arm and the blade assembly. The invention further discloses an air volume control method of the mine truck radiator. The air inlet amount of the mine truck radiator in the low-temperature environment can be effectively controlled, meanwhile, the requirement for heat dissipation after an engine operates for a long time can be met, then the working temperature of the engine is controlled, the engine is kept working in a proper temperature interval, the fuel economy of the engine is improved, the service life of the engine is prolonged, and the emission level of the engine is improved.

Description

Technical Field

[0001] This invention belongs to the field of mining vehicle technology, specifically relating to a louvered radiator for a mining vehicle and a method for controlling the airflow of the radiator. Background Technology

[0002] Mining trucks are large pieces of equipment used in open-pit mines for transporting materials and overburden. They operate in harsh environments across a wide range of locations, from the sweltering heat of southern mines to the frigid temperatures of northern mines. In low-temperature environments, if the cooling system continues to operate at high airflow, excessive heat loss from the engine will occur, making it difficult to reach the normal operating temperature range.

[0003] This "low-temperature operation" has many hidden problems, as follows: 1. Poor fuel atomization leads to increased carbon buildup; Second, increased oil viscosity and reduced fluidity prevent the oil from providing effective lubrication to critical components, leading to increased internal friction resistance in the engine. This not only consumes extra power but also shortens the lifespan of the oil. Third, the engine's thermal efficiency is significantly reduced, fuel consumption is significantly increased, and the emission of unburned hydrocarbons in the exhaust gas is increased, which does not meet environmental protection requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a louver for a mining truck radiator and a method for controlling the airflow of the mining truck radiator, which can effectively control the airflow of the mining truck radiator in low-temperature environments, while also taking into account the heat dissipation needs of the engine after long-term operation, thereby controlling the engine's operating temperature, keeping the engine operating in a suitable temperature range, and improving the engine's fuel economy, lifespan, and emission levels.

[0005] To achieve the above objectives, the technical solution used in this invention is: Mining truck radiator louvers, including: The frame is fixed to the front end face of the radiator using the first bolt; The drive unit, located on the top surface of the frame of the housing, is used to drive the blade assembly to adjust the blade angle; The blade assembly, housed within the frame, is used to regulate the airflow into the radiator. A connecting device is disposed between the drive arm and the blade assembly of the drive unit, and is used to hinge the drive arm and the blade assembly.

[0006] Furthermore, it includes multiple blade assemblies evenly distributed along the height direction.

[0007] Furthermore, the frame includes: a connecting plate and a frame, the connecting plate and the frame are integrally fixedly connected, and the connecting plate is provided with a mounting through hole; the frame includes: an outer frame, an inner frame and a bottom plate, the inner frame is connected inside the outer frame, the bottom plate is connected to the bottom of the inner frame, the two inner frames are arranged side by side, the outer frame is provided with a first through hole at the middle position of the top surface, and the inner frame is provided with a second through hole on the vertical edge, and the second through holes of the two inner frames are on the same axis.

[0008] Furthermore, the blade assembly includes: a blade shaft, a torsion plate, blades, a locking plate, felt, a second bolt, and a nut. The torsion plate is located in the middle of the blade shaft and is integrally fixedly connected to the blade shaft. Each blade assembly includes two blades and two locking plates. The two blades and the corresponding locking plates are respectively located on both sides of the torsion plate, and the blades and the torsion plate have a certain angle. The blade shaft has an anti-rotation plane machined at the installation position of the corresponding locking plate. The length of the anti-rotation plane is equal to the length of the locking plate. The blades and locking plates are integrally fixedly connected to the blade shaft by means of the second bolt and nut. The anti-rotation plane is in contact with the inner plane of the locking plate.

[0009] Furthermore, the drive device includes: a base, a push rod motor, and a drive arm. The base is fixed to the top surface of the outer frame of the frame by welding. The motor housing assembly of the push rod motor is connected to the base by means of a pin in a hinged manner. The front end of the push rod of the push rod motor is connected to the drive arm by means of a pin in a hinged manner. The drive arm is V-shaped, and its bend is connected to the base by means of a pin in a hinged manner. One end of its short arm is hinged to the push rod, and one end of its long arm is hinged to the connecting device.

[0010] Furthermore, the connecting device includes a connecting rod and a driving rod. The driving rod is disposed in a groove between the two inner frames of the frame and is composed of two strip plates. The driving rod is hinged to the torsion plate of the blade assembly by means of a pin. The lower end of the connecting rod is hinged to the driving rod, and the upper end of the connecting rod passes through the first through hole of the outer frame and is hinged to one end of the long arm of the driving arm of the driving device.

[0011] Furthermore, the connecting rod includes: a screw, two rod heads, and two spherical bearings. The screw has external threads at both ends and internal threads at the rod heads. The screw is connected to the rod heads at both ends by means of the threads, and spherical bearings are installed in the holes at the ends of the rod heads.

[0012] Methods for controlling the airflow of mining truck radiators include: When the mining truck is operating under low-temperature conditions and it is necessary to reduce the air intake of the radiator, the push rod of the push rod motor is extended by operating the switch, and the drive arm rotates around the connection point between the push rod and the base, thereby lifting the connecting rod and the drive rod; the drive rod drives the torsion plate to rotate, and the blade assembly rotates counterclockwise to reduce the gap between adjacent blades, so as to reduce the air intake. When the engine coolant temperature is high after the mine car has been running for a long time, and the radiator needs to increase the air intake, the operating switch controls the push rod of the push rod motor to retract, and the drive arm rotates around the connection point between it and the base, thereby lowering the connecting rod and the drive rod. The drive rod drives the torsion plate to rotate, and the blade assembly rotates clockwise, increasing the gap between adjacent blades to increase the air intake.

[0013] Preferably, when the louvers need to be fully opened, the push rod is further retracted to its shortest length, and the blade assembly is further rotated clockwise until the blades are perpendicular to the windward side of the radiator, thereby achieving unobstructed air intake for the radiator.

[0014] Preferably, when the louvers need to be closed, the push rod extends further to its maximum length, and the blade assembly rotates further counterclockwise until the felt of the upper blade assembly contacts the lower blade, thereby achieving zero air intake for the radiator.

[0015] The technical effects of this invention include: This invention can effectively control the air intake of the radiator of mining trucks in low-temperature environments, while also taking into account the heat dissipation needs of the engine after long-term operation, thereby controlling the engine's operating temperature, keeping the engine operating within a suitable temperature range, improving the fuel economy and reliability of mining truck engines, extending engine life, and reducing engine emissions. Attached Figure Description

[0016] Figure 1 This is an isometric view of the radiator louvers of the mining truck after installation in this invention; Figure 2 yes Figure 1 Enlarged view of the area near the push rod motor; Figure 3 This is an exploded view of the louver frame in this invention; Figure 4 This is an isometric view of the louver blade assembly in this invention; Figure 5 yes Figure 4 A cross-sectional view through the center axis of the fastener; Figure 6 This is a cross-sectional view of the connection position between the blade shaft and the frame in this invention; Figure 7 yes Figure 2 Enlarged view of the area near the push rod motor; Figure 8 This is a partial inner view of the venetian blinds in this invention; Figure 9 yes Figure 8 Axonometric view near the connecting rod; Figure 10 This is a cross-sectional view of the connecting rod in this invention; Figure 11This is a cross-sectional view of the louver in this invention when the blades are closed; Figure 12 This is a cross-sectional view of the louvers in this invention when the slats are fully open.

[0017] Explanation of reference numerals in the attached figures: 1-Engine; 2-Radiator; 3-Fan; 4-First bolt (fastening component); 5- Venetian blinds; 6-Frame, 61-Connecting plate, 61a-Mounting through hole, 62-Frame, 621-Outer frame, 621a-First through hole, 622-Inner frame, 622a-Second through hole, 623-Base plate; 7-Drive unit, 71-Base, 72-Push rod motor, 721-Motor housing assembly, 722-Push rod, 73-Drive arm; 8-Connecting device, 81-Connecting rod, 811-Screw, 811a-External thread, 812-Rod head, 812a-Internal thread, 813-Spherical bearing, 82-Drive rod; 9-Blade assembly, 91-Blade shaft, 91a-Anti-rotation plane, 92-Torsion plate, 93-Blade, 94-Locking plate, 95-Felt, 96-Second bolt (fastening component), 97-Nut (fastening component). 10-Bushing; O - Central axis, W - Cooling air. Detailed Implementation

[0018] The following description fully illustrates specific embodiments of the present invention to enable those skilled in the art to practice and reproduce it. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention 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 invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] like Figure 1 The image shown is an isometric view of the radiator louvers of the mining vehicle in this invention after installation.

[0022] Figure 1 The image shows the front of the blinds, i.e., the outer side of the blinds, indicating the installation location and method.

[0023] A fan 3 is installed in front of the engine 1 of the mining truck. The fan 3 is driven by the engine 1. A radiator 2 is installed in front of the fan 3. The radiator 2 is connected to the water channel of the engine 1 through cooling pipes. A water pump drives the coolant to circulate in the water channel inside the engine 1, absorbing heat and then passing through the radiator. Cooling air is drawn in from the front of the radiator 2 and blown out from the rear. The cooling air undergoes heat exchange as it flows through the radiator 2, and the cooling fan dissipates the heat into the air, thereby reducing the temperature of the coolant in the radiator 2 and thus reducing the coolant temperature of the engine 1. The radiator louvers 5 provided by this invention are installed in front of the radiator 2 by means of a first bolt 4.

[0024] like Figure 2 As shown, is Figure 1 An enlarged view near the central push rod motor shows the main components of the radiator louvers 5 and their relative positions. (See attached image.) Figure 3 The figure shown is an exploded view of the louver frame 6 in this invention, illustrating the composition and main features of the louver frame 6.

[0025] The venetian blind 5 includes: a frame 6, a drive unit 7, a connecting device 8, a blade assembly 9, and a bushing 10. The venetian blind 5 comprises multiple blade assemblies 9 evenly distributed along the height direction.

[0026] The frame 6 includes a connecting plate 61 and a frame 62, which are integrally fixed together by welding.

[0027] The connecting plate 61 is provided with a mounting through hole 61a.

[0028] The frame 62 is integrally connected by welding an outer frame 621, two inner frames 622, and a base plate 623, forming a U-shaped cross-section with an inner recess. The two inner frames 622 are symmetrically arranged in the left-right direction. The outer frame 621 has a first through hole 621a at the center of its top surface, and the inner frames have multiple second through holes 622a on their vertical sides, with adjacent second through holes 622a on the same axis.

[0029] like Figure 4 The image shown is an axonometric view of the louver blade assembly 9 in this invention, illustrating the blade assembly 9 and its relative positions.

[0030] like Figure 5 As shown, is Figure 4 The cross-sectional view through the central axis of the fastener shows the connection method of the blade 93, the locking plate 94 and the blade shaft 91, as well as the relative angle between the torsion plate 92 and the blade 93.

[0031] like Figure 6 The figure shown is a cross-sectional view of the connection position between the blade shaft 91 and the frame 6 in this invention, illustrating the connection method between the blade shaft 91 and the frame 6.

[0032] The blade assembly 9 is housed in the frame 6 and includes: blade shaft 91, torsion plate 92, blade 93, locking plate 94, felt 95, second bolt 96, and nut 97.

[0033] A torsion plate 92 is positioned at the center of the blade shaft 91 and is integrally fixedly connected to the blade shaft 91. Each blade assembly 9 includes two blades 93 and two locking plates 94. The two blades 93 and the corresponding locking plates 94 are respectively positioned on both sides of the torsion plate 92, and the blades 93 and the torsion plate 92 are at a certain angle. The blade shaft 91 has an anti-rotation plane 91a machined at the mounting position of the corresponding locking plate 94. The length of the anti-rotation plane 91a is equal to the length of the locking plate 94. The blades 93 and the locking plates 94 are integrally fixedly connected to the blade shaft 91 by means of a second bolt 96 and a nut 97. The anti-rotation plane 91a contacts the inner plane of the locking plate 94, thus restricting the axial and circumferential rotation of the blades 93 relative to the blade shaft 91, achieving a fixed connection between the blades 93 and the blade shaft 91. Felt 95 is installed in the U-shaped groove on the underside of the blades 93. After the blade assembly 9 is installed into the frame 6, the blade shaft 91 is supported on the second through hole 622a of the inner frame 622 of the frame 6 by means of the bushing 10. The torsion plate 92 is located in the middle groove of the two inner frames 622 of the frame 6, and the two blades 93 are respectively set in the two inner frames 922.

[0034] like Figure 7 As shown, is Figure 2 An enlarged view near the push rod motor 72 shows the main components of the drive unit and their locations.

[0035] The drive unit 7 is located on the upper part of the top surface of the frame 62 of the frame body 6, and includes: base 71, push rod motor 72, and drive arm 73.

[0036] The base 71 is fixed to the top surface of the outer frame 621 of the frame 62 by welding. The rear of the motor housing assembly 721 of the push rod motor 72 is connected to the base 71 by means of a pin. The front end of the push rod 722 of the push rod motor 72 is connected to the lower short arm of the drive arm 73 by means of a pin.

[0037] The drive arm 73 is V-shaped and is connected to the base 71 by means of a pin. One end of its short arm is hinged to the push rod, and one end of its long arm is hinged to the connecting device 8.

[0038] like Figure 8 The image shown is a partial inner view of the louver 5 in this invention, showing the installation positions of the blade assembly 9 and the drive device 7.

[0039] like Figure 9 As shown, is Figure 8 An axonometric view near the central connecting rod 81 shows the connection relationship between the drive device 7, the connecting device 8, and the blade assembly 9 from the inner view of the louver 5.

[0040] like Figure 10 The figure shown is a cross-sectional view of the connecting rod 81 in this invention, illustrating the components of the connecting rod and its connection method.

[0041] The connecting device 8 is disposed between the drive arm 73 of the drive device 7 and the blade assembly 9, and includes a connecting rod 81 and a drive rod 82. The drive rod 82 is disposed in a groove between the two inner frames 622 of the frame 6, and is composed of two strip plates. The drive rod 82 is hinged to the torsion plate 92 of the blade assembly 9 by means of a pin. The distance between the drive rod 82 and the center of connection of the two torsion plates 92 is equal to the distance between the blade shafts 91 of the two blade assemblies 9, that is, each blade 93 is parallel to each other.

[0042] The lower end of the connecting rod 81 is hinged to the drive rod 82 via a pin, and the upper end of the connecting rod 81 passes through the first through hole 621a of the outer frame 621 and is hinged to one end of the long arm of the drive arm 73 of the drive device 7 via a pin. The connecting rod 81 includes: a screw 811, two rod heads 812 and two spherical bearings 813. The screw 811 has external threads 811a at both ends, and the rod heads 812 have internal threads 812a. The screw 811 is connected to the rod heads 812 at both ends by means of threads. The spherical bearings 813 are provided in the holes at the ends of the rod heads 812, and the spherical bearings 813 can rotate and swing relative to the rod heads.

[0043] like Figure 11 The image shown is a cross-sectional view of the louver 5 when the blades 93 are closed, showing the position of adjacent blade assemblies when the louver is closed.

[0044] like Figure 12 The image shown is a cross-sectional view of the louver 5 when the blades 93 are fully open, showing the positions of adjacent blade assemblies when the louver is fully open.

[0045] Methods for controlling the airflow of mining truck radiators include: The push rod motor 72 is controlled by an electrical switch; The connecting rod 81 has a length adjustment function. By rotating the screw 811 of the connecting rod 81, the distance between the two ends 812 of the connecting rod can be adjusted. Correspondingly, the distance between the upper end of the drive rod 82 and the drive arm 73 of the drive device is adjusted, further realizing the correlation between the opening angle of the blade 93 and the stroke of the push rod motor push rod 722. The spherical bearings 813 at both ends of the connecting rod 81 allow the connecting rod 81 to have a certain swing angle relative to the drive arm 73, effectively compensating for the offset of the drive rod 82 and the drive arm 73 in the front-back direction when the drive rod 82 moves up and down.

[0046] When the mining truck operates under low-temperature conditions and the air intake of the radiator 2 needs to be reduced, the push rod 722 of the push rod motor 72 is extended by operating the switch. The drive arm 73 rotates around its connection point with the base 71, thereby lifting the connecting rod 81 and the drive rod 82. The drive rod 82 drives the torsion plate 92 to rotate. Correspondingly, the blade assembly 9 rotates counterclockwise to reduce the gap between adjacent blades 93, thereby reducing the air intake. When the louvers 5 need to be closed, the push rod 722 extends further to its maximum length, and the blade assembly 9 rotates further counterclockwise until the felt 95 of the upper blade assembly 9 contacts the lower blade 93, thereby achieving zero air intake for the radiator 2.

[0047] When the engine coolant temperature is high after the mine car has been running for a long time, requiring radiator cooling (i.e., when radiator 2 needs to increase air intake), the operating switch controls the push rod 722 of the push rod motor to retract. The drive arm 73 rotates around its connection point with the base, thereby lowering the connecting rod 81 and the drive rod 82. The drive rod 82 drives the torsion plate 92 to rotate, and correspondingly, the blade assembly 9 rotates clockwise to increase the gap between adjacent blades 93, thus increasing the air intake. When the louvers 2 need to be fully opened, the push rod 722 retracts further to its shortest length, and the blade assembly 9 rotates further clockwise until the blades 93 are perpendicular to the windward side of the radiator 2, thereby achieving unobstructed air intake for the radiator 2.

[0048] The above-described method for controlling the airflow of the radiator louvers in mining trucks enables effective control of the radiator's air intake, ensuring that the engine operates within a suitable temperature range and improving the fuel economy and reliability of the mining truck engine.

[0049] The terminology used in this invention is descriptive and exemplary, not restrictive. Since this invention can be embodied in many forms without departing from the spirit or essence of the technical solution, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A type of radiator louver for a mining vehicle, characterized in that, include: The frame is fixed to the front end face of the radiator using the first bolt; The drive unit, located on the top surface of the frame of the housing, is used to drive the blade assembly to adjust the blade angle; The blade assembly, housed within the frame, is used to regulate the airflow into the radiator. A connecting device is disposed between the drive arm and the blade assembly of the drive unit, and is used to hinge the drive arm and the blade assembly.

2. The radiator louver of the mining truck as described in claim 1, characterized in that, It includes multiple blade assemblies evenly distributed along the height direction.

3. The radiator louver of the mining truck as described in claim 1, characterized in that, The frame includes: The connecting plate and the frame are integrally fixedly connected, and the connecting plate is provided with mounting through holes; the frame includes an outer frame, an inner frame and a bottom plate, the inner frame is connected to the inside of the outer frame, the bottom plate is connected to the bottom of the inner frame, the two inner frames are arranged side by side, the outer frame is provided with a first through hole in the middle of the top surface, and the inner frame is provided with a second through hole on the vertical edge, and the second through holes of the two inner frames are on the same axis.

4. The radiator louver of the mining car as described in claim 1, characterized in that, The blade assembly includes: a blade shaft, a torsion plate, blades, a locking plate, felt, a second bolt, and a nut. The torsion plate is located in the middle of the blade shaft and is integrally fixedly connected to the blade shaft. Each blade assembly includes two blades and two locking plates. The two blades and the corresponding locking plates are respectively located on both sides of the torsion plate, and the blades and the torsion plate have a certain angle. The blade shaft has an anti-rotation plane machined at the installation position of the corresponding locking plate. The length of the anti-rotation plane is equal to the length of the locking plate. The blades and locking plates are integrally fixedly connected to the blade shaft by means of the second bolt and nut. The anti-rotation plane is in contact with the inner plane of the locking plate.

5. The radiator louver of the mining vehicle as described in claim 1, characterized in that, The drive unit includes: a base, a push rod motor, and a drive arm. The base is fixed to the top surface of the outer frame of the frame by welding. The motor housing assembly of the push rod motor is connected to the base by means of a pin and hinged. The front end of the push rod of the push rod motor is connected to the drive arm by means of a pin and hinged. The drive arm is V-shaped, and its bend is connected to the base by means of a pin and hinged. One end of its short arm is hinged to the push rod, and one end of its long arm is hinged to the connecting device.

6. The radiator louvers of a mining truck as described in claim 1, characterized in that, The connecting device includes a connecting rod and a driving rod. The driving rod is set in a groove between the two inner frames of the frame and consists of two strip plates. The driving rod is hinged to the torsion plate of the blade assembly by means of a pin. The lower end of the connecting rod is hinged to the driving rod, and the upper end of the connecting rod passes through the first through hole of the outer frame and is hinged to one end of the long arm of the driving arm of the driving device.

7. The radiator louver of a mining vehicle as described in claim 6, characterized in that the connecting rod include: The screw consists of two rod heads and two spherical bearings. The screw has external threads at both ends and internal threads at the rod heads. The screw is connected to the rod heads at both ends by means of the threads, and a spherical bearing is installed in the hole at the end of the rod head.

8. The method for controlling the airflow of a mining car radiator louvers as described in any one of claims 1-7, characterized in that, include: When the mining truck is operating under low-temperature conditions and it is necessary to reduce the air intake of the radiator, the push rod of the push rod motor is extended by operating the switch, and the drive arm rotates around the connection point between the push rod and the base, thereby lifting the connecting rod and the drive rod; the drive rod drives the torsion plate to rotate, and the blade assembly rotates counterclockwise to reduce the gap between adjacent blades, so as to reduce the air intake. When the engine coolant temperature is high after the mine car has been running for a long time, and the radiator needs to increase the air intake, the operating switch controls the push rod of the push rod motor to retract, and the drive arm rotates around the connection point between it and the base, thereby lowering the connecting rod and the drive rod. The drive rod drives the torsion plate to rotate, and the blade assembly rotates clockwise, increasing the gap between adjacent blades to increase the air intake.

9. The airflow control method for a mining truck radiator as described in claim 8, characterized in that, When the louvers need to be fully opened, the push rod is retracted further to its shortest length, and the blade assembly is rotated clockwise until the blades are perpendicular to the windward side of the radiator, thus achieving unobstructed air intake for the radiator.

10. The airflow control method for a mining truck radiator as described in claim 8, characterized in that, When the louvers need to be closed, the push rod extends further to its maximum length, and the blade assembly rotates counterclockwise until the felt of the upper blade assembly contacts the lower blade, thereby achieving zero air intake for the radiator.

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