Sliding block, angle adjusting mechanism and fan

Abstract

Paraffin or palm wax is filled in an installation cavity, the sliding block is further installed in the installation cavity in a sliding fit mode, a rotating shaft is arranged on the sliding block in a penetrating mode in the sliding direction of the sliding block, the two ends of the rotating shaft penetrate through the front side wall and the rear side wall of the installation cavity, and a pin shaft is arranged on the rotating shaft in a penetrating mode in the radial direction. The two ends of the pin shaft are arranged on the left side wall and the right side wall of the groove in a striding mode, a spring is further installed in the installation cavity, the front end of the spring abuts against the rear side wall of the installation cavity, and the rear end of the spring abuts against the front side wall of the sliding block. The utility model has the beneficial effects that under the low-temperature working condition of the engine, the fan blades are positioned at a horizontal angle, the fan and the engine are directly connected and synchronously rotate without generating air volume, and the oil consumption of the engine under the low-temperature working condition can be reduced; under the high-temperature working condition of the engine, the fan and the engine are directly connected and synchronously rotate, the maximum air volume at the corresponding rotating speed can be generated, and the heat dissipation efficiency of the engine under the high-temperature working condition is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to engine heat dissipation, especially a sliding block, angle adjusting mechanism and fan. BACKGROUND

[0002] The conventional mechanical silicon oil fan is through inducting the air temperature through the radiator, the metal temperature sensor is deformed automatically to adjust the silicon oil cavity oil inlet hole opening and closing, when the temperature reaches the specific temperature, the fan driving disc drives the fan shell and fan blade to rotate, realizes the fan and engine speed synchronization, increases the fan air volume. SUMMARY

[0003] The utility model discloses a sliding block, angle adjusting mechanism and fan can overcome the shortcomings of prior art.

[0004] The utility model discloses a sliding block, angle adjusting mechanism and fan can overcome the shortcomings of prior art.

[0005] An angle adjusting mechanism includes a shell, a cover plate and a driving device for driving the shell to move in a circular direction, a plurality of installation cavities are formed in the radial direction on the shell, the installation cavities are arranged at intervals in the circular direction, the cover plate is installed on the shell, and the installation cavities are sealed cavities, the installation cavities are filled with paraffin or palm wax, a sliding block is slidably installed in the installation cavities, a rotating shaft is arranged on the sliding block in the sliding direction, the two ends of the rotating shaft pass through the front and rear side walls of the installation cavities, limiting members are arranged on the two ends of the rotating shaft to prevent the rotating shaft from sliding forward and backward, a pin shaft is arranged on the rotating shaft in the radial direction, the two ends of the pin shaft are arranged on the left and right side walls of the recess, a spring is installed in the installation cavity, the front end of the spring is pressed against the rear side wall of the installation cavity, and the rear end of the spring is pressed against the front side wall of the sliding block.

[0006] Optionally, the limiting member is a snap spring, and a clamping groove is formed on the passing end of the rear wall of the installation cavity after the rotating shaft passes through the passing end, and the snap spring is installed on the clamping groove.

[0007] Optionally, the shell is a disc, and the installation cavities are uniformly distributed on the same circumference.

[0008] Optionally, the cover plate and the shell are detachably connected through locking screws, and the locking screws are located between two adjacent installation cavities.

[0009] Optionally, a groove is formed between two adjacent installation cavities, a threaded column is arranged in the groove, and the locking screw is locked with the threaded column.

[0010] Optionally, the shell is provided with a containing groove corresponding to the installation cavity, and the passing end of the rear end of the rotating shaft is located in the containing groove.

[0011] Optionally, the power output end of the driving device is connected with the middle part of the shell.

[0012] A fan comprises a fan blade and an angle adjusting mechanism, the rear end of the fan blade is provided with a connecting head, and the connecting head is detachably connected with a rotating shaft.

[0013] The utility model has the following advantages:

[0014] 1. The fan of the utility model is directly connected with the engine to rotate synchronously under low-temperature working condition of the engine, the fan blade is at a horizontal angle, no wind volume is generated, and the oil consumption under low-temperature working condition of the engine can be reduced.

[0015] 2. The fan of the utility model is directly connected with the engine to rotate synchronously under high-temperature working condition of the engine, the sliding block slides to the front end under the action of centrifugal force, the fan blade is at the maximum angle, the fan and the engine are directly connected to rotate synchronously, the maximum wind volume corresponding to the rotating speed can be generated, and the heat dissipation efficiency under high-temperature working condition of the engine is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the fan

[0017] Figure 2 It is an installation schematic view of the sliding block in the installation cavity

[0018] Figure 3 It is an installation schematic view of the rotating shaft and the sliding block

[0019] Figure 4 It is a structural schematic view of the sliding block

[0020] In the figure, 1 - shell, 2 - fan blade, 3 - cover plate, 4 - mounting cavity, 5 - slider, 6 - spring, 7 - pin shaft, 8 - rotating shaft, 9 - first inclined surface, 10 - second inclined surface, 11 - inclined clamping groove, 12 - clamping spring, 13 - first plane, 14 - second plane, 15 - third plane. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0024] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term "arrangement", "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through intermediate medium indirectly connected, can be two elements inside the communication。For ordinary skilled person in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0027] As Figure 1 Indicated, a fan, including fan blade 2, still including angle adjusting mechanism, in the embodiment, angle adjusting mechanism includes casing 1, cover plate 3 and drive casing 1 do circumferential motion's drive arrangement, and drive arrangement is engine, when engine works, fan also works, when engine stops working, fan also stops working, and engine drives fan rotation belongs to prior art, therefore its connection relationship and driving principle then do not repeat the description.When engine works, thereby drive casing 1 rotation, in the embodiment, as Figure 2As shown, a plurality of mounting cavities 4 are formed radially on the housing 1. The mounting cavities 4 are spaced apart in the circumferential direction. Preferably, the housing 1 is a disc, and the mounting cavities 4 are evenly distributed on the same circumference. Further, there are 9 mounting cavities 4. A cover plate 3 is installed on the housing 1, making the mounting cavities 4 sealed cavities. The cavities are sealed by the cover plate 3, which is prior art and will not be described in detail. The mounting cavities 4 are filled with paraffin wax or palm wax. Paraffin wax or palm wax is solid below its melting point and liquid above its melting point. For the clutch assembly, when the input speed is 4300 rpm and the fan front end temperature is below 40 ± 5°C, the output speed is no higher than 1300 rpm. At this time, the fan airflow does not need to be adjusted to the maximum, that is, the fan blade 2 has the smallest rotation angle, and the paraffin wax or palm wax is in a solid state. When the fan front end temperature is 60 ± 5°C, the output speed is 2000 ± 200 rpm. At this time, the clutch is in a solid state. The quantity has certain requirements, so the angle of fan blade 2 needs to be adjusted to the maximum. At this time, paraffin wax or carnauba wax is in a liquid state. When the temperature at the front end of the fan is 80 ± 5°C, the output speed is greater than 3800 rpm. At this time, the angle of fan blade 2 also needs to be adjusted to the maximum, and paraffin wax or carnauba wax is also in a liquid state. In this embodiment, the melting point range of paraffin wax is usually between 58-62°C, as determined by the ASTM D87 standard. When paraffin wax is used as a filler, it melts when the temperature at the front end of the fan exceeds the melting point of paraffin wax, and remains solid when the temperature at the front end of the fan is lower than the melting point of paraffin wax. Carnauba wax with a melting point of 80 ± 5°C is selected. Preferably, Brazilian carnauba wax is selected, with a melting point of 82.5°C. That is to say, it remains liquid when the temperature at the front end of the fan is higher than the temperature of carnauba wax, and remains liquid when the temperature at the front end of the fan is lower than the temperature of carnauba wax. In actual use, paraffin wax or carnauba wax can be selected according to the actual situation.

[0028] In this embodiment, as Figure 2 As shown, a slider 5 is also slidably installed inside the mounting cavity 4, such as... Figure 3 and Figure 4As shown, the slider 5 comprises a body, a groove is formed on the body, a first inclined surface 9 is formed on the left side wall of the groove, a second inclined surface 10 is formed on the right side wall of the groove, the first inclined surface 9 and the second inclined surface 10 intersect on the left side projection surface, a first plane 13 is arranged at the front end of the left side wall of the groove, a second plane 14 is arranged at the front end of the right side wall of the groove, the first plane 13 and the second plane 14 are flush, a third plane 15 is also arranged at the rear end of the right side wall of the groove, an inclined inclined clamping groove 11 is formed on the third plane 15, a rotating shaft 8 is arranged on the slider 5 in the sliding direction thereof, the two ends of the rotating shaft 8 pass through the front and rear side walls of the mounting cavity 4, and the end portions of the two ends of the rotating shaft 8 are provided with limiting members for avoiding the forward and backward sliding of the rotating shaft 8, a pin shaft 7 is radially arranged on the rotating shaft 8, the two ends of the pin shaft 7 span the left and right side walls of the groove, a spring 6 is further arranged in the mounting cavity 4, the front end of the spring 6 abuts against the rear side wall of the mounting cavity 4, and the rear end of the spring 6 abuts against the front side wall of the slider 5; in the initial state, the spring 6 applies a pushing force to the slider 5, so that the slider 5 is in the rear stroke, the pin shaft 7 spans the first plane 13 and the second plane 14, and at this time, the paraffin or palm wax is below its melting point, so the positions of the slider 5 and the pin shaft 7 are fixed, and the fan blade 2 cannot rotate; along with the operation of the engine, the fan blade 2 rotates in the circumferential direction, so as to provide a small air volume; along with the increase of the temperature at the front end of the fan, the temperature of the paraffin or palm wax also increases, and when the temperature at the front end of the fan is higher than the melting point of the paraffin or palm wax, the paraffin or palm wax is in a liquid state; at this time, the centrifugal force of the slider 5 is greater than the elastic force of the spring 6 applied to the slider 5, the slider 5 slides forward, the left end of the pin shaft 7 moves from the first plane 13 to the first inclined surface 9, and the right end of the pin shaft 7 moves from the second plane 14 to the second inclined surface 10; since the first inclined surface 9 and the second inclined surface 10 intersect on the left side projection surface, the pin shaft 7 is deflected, so as to adjust the angle of the fan blade 2; when the right end of the pin shaft 7 moves from the second inclined surface 10 to the third plane 15, the inclined clamping groove 11 is formed on the third plane 15, and the right end of the pin shaft 7 is clamped in the inclined clamping groove 11 on the third plane 15, so that the pin shaft 7 cannot continue to be deflected, and the deflection angle of the fan blade 2 is adjusted to the maximum, so as to realize the output of the maximum air volume.

[0029] In the embodiment, as Figure 3As shown, a connector is provided at the rear end of the fan blade 2. The connector is detachably connected to the rotating shaft 8. A threaded hole is provided on the connector, and an external thread is provided at the front end of the rotating shaft 8. The rotating shaft 8 and the connector are connected by a thread. Furthermore, when the rotating shaft 8 and the connector are installed, the connector contacts the outer wall of the housing 1. At this time, the front end of the rotating shaft 8 is restricted, and the rear end of the rotating shaft 8 is restricted by a limiting member, thereby preventing the rotating shaft 8 from moving back and forth and ensuring the reliability of the fan blade 2. Furthermore, the limiting member is a retaining spring 12. A retaining groove is provided on the end of the rotating shaft 8 that protrudes from the rear wall of the mounting cavity 4. A retaining spring 12 is installed on the retaining groove. In this embodiment, the housing 1 is a disc. The power output end of the drive device is connected to the middle of the housing 1. A receiving groove corresponding to the mounting cavity 4 is provided on the housing 1. The protruding end of the rear end of the rotating shaft 8 is located in the receiving groove.

[0030] In this embodiment, as Figure 4 As shown, the cover plate 3 and the housing 1 are detachably connected by locking screws, and the locking screws are located between two adjacent mounting cavities 4. Furthermore, in order to reduce the weight of the housing 1 and reduce energy consumption, a groove is provided between the two adjacent mounting cavities 4, and a threaded post is provided in the groove. The locking screws are locked to the threaded post.

[0031] The working process of this utility model is as follows: The engine works, which in turn drives the fan to work. The temperature of the circulating water gradually rises, and the temperature of the water entering the air-cooled area also rises, which in turn drives the housing 1 and the fan blade 2 to make circular motion. After the fan blade 2 works, it generates suction, which draws in cold air. The cold air will take away some of the temperature of the circulating water, which will cause the cold air to heat up. That is to say, the temperature of the front end of the fan rises. When the temperature of the front end of the fan is higher than the melting point of paraffin wax or palm wax, the paraffin wax or palm wax is in a liquid state. At this time, it indicates that the circulating water needs a larger air volume for heat exchange. After the paraffin wax or palm wax is in a liquid state, the centrifugal force of the slider 5 is greater than the elastic force applied to the slider 5 by the spring 6, and the slider 5 slides forward. The left end of the pin 7 moves from the first plane 13 to the first inclined plane 9, and the right end of the pin 7 moves from the second plane 14 to the second inclined plane 10. Since the first inclined plane 9 and the second inclined plane 10 are on the left projection plane, When the two inclined planes 10 intersect, the pin 7 deflects, thereby adjusting the angle of the fan blade 2. When the right end of the pin 7 moves from the second inclined plane 10 to the third plane 15, an inclined slot 11 is provided on the third plane 15. The right end of the pin 7 is then stuck in the inclined slot 11 on the third plane 15. At this time, the pin 7 cannot continue to deflect, and the deflection angle of the fan blade 2 is adjusted to the maximum, achieving the maximum air volume output. When the engine stops working, the fan also stops rotating. At this time, the slider 5 is not subject to centrifugal force. At this time, the paraffin or palm wax is still in a liquid state. The slider 5 is reset under the action of the spring 6, and the fan blade 2 also returns to the minimum deflection angle. Preferably, the minimum deflection angle of the fan blade 2 is a horizontal angle. At this time, the fan blade 2 rotates but does not generate air volume. Then, the temperature at the front end of the fan gradually approaches the outdoor temperature, and the paraffin or palm wax changes from a liquid state to a solid state, thereby fixing the slider 5 and the pin 7.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slider, characterized in that: The device includes a main body with a groove. A first inclined surface is formed on the left side wall of the groove, and a second inclined surface is formed on the right side wall of the groove. On the left projection plane, the first inclined surface and the second inclined surface intersect. A first plane is provided at the front end of the left side wall of the groove, and a second plane is provided at the front end of the right side wall of the groove. The first plane and the second plane are flush. A third plane is also provided at the rear end of the right side wall of the groove, and an inclined slot is formed on the third plane.

2. An angle adjustment mechanism, characterized in that: The device includes a housing, a cover plate, and a drive device for driving the housing to perform circular motion. The housing has several mounting cavities arranged radially and spaced apart circumferentially. The cover plate is mounted on the housing, making each mounting cavity a sealed cavity. Each mounting cavity is filled with paraffin wax or carnauba wax. A slider as described in claim 1 is slidably mounted within each mounting cavity. A rotating shaft passes through the slider along its sliding direction. Both ends of the rotating shaft pass through the front and rear side walls of the mounting cavity, and each end of the rotating shaft has a limiting member to prevent it from sliding back and forth. A pin passes radially through the rotating shaft, with both ends spanning the left and right side walls of the groove. A spring is also installed within the mounting cavity, with its front end pressing against the rear side wall of the mounting cavity and its rear end pressing against the front side wall of the slider.

3. The angle adjustment mechanism according to claim 2, characterized in that: The limiting component is a retaining ring, and a retaining groove is provided on the end of the rotating shaft that protrudes from the rear side wall of the mounting cavity, and the retaining ring is installed in the retaining groove.

4. The angle adjustment mechanism according to claim 2, characterized in that: The housing is a disc, and the mounting cavities are evenly distributed on the same circumference.

5. An angle adjustment mechanism according to any one of claims 2-4, characterized in that: The cover plate is detachably connected to the housing by a locking screw, and the locking screw is located between two adjacent mounting cavities.

6. The angle adjustment mechanism according to claim 5, characterized in that: A groove is provided between two adjacent mounting cavities, and a threaded post is provided in the groove. The locking screw is locked to the threaded post.

7. The angle adjustment mechanism according to claim 6, characterized in that: The housing has a receiving groove corresponding to the mounting cavity, and the protruding end of the rear end of the rotating shaft is located in the receiving groove.

8. The angle adjustment mechanism according to claim 7, characterized in that: The power output end of the drive device is connected to the middle part of the housing.

9. A fan, characterized in that: The device includes a fan blade and an angle adjustment mechanism as described in any one of claims 2 to 8, wherein a connector is provided at the rear end of the fan blade and the connector is detachably connected to the rotating shaft.

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