Automobile engine aluminum belt pulley easy to produce through die casting

Abstract

The utility model relates to the field of belt pulleys, and discloses an automobile engine aluminum belt pulley easy for die-casting production, which comprises a pulley body, a splicing component is detachably mounted on the inner wall of the pulley body, a mounting hole is formed in the center of the pulley body, the splicing component comprises a positioning shaft, rotating blocks are rotatably connected to the outer walls of the two sides of the positioning shaft, and the rotating blocks are rotatably connected to the outer walls of the two sides of the positioning shaft. And the rotating center point of the rotating block is fixedly connected with a connecting block, hinge rods are hinged to the two sides of the connecting block, wedge blocks are hinged to the ends, away from the connecting block, of the two hinge rods, the planes of the rear ends of the wedge blocks make contact with the surface of the wheel body, and the two wedge blocks are elastically connected through a limiting spring. According to the utility model, the positioning shaft is matched with the wedge block, so that the splicing process is simple and quick, additional tools and complicated operation are not needed, the design with strong adaptability meets the special requirements of engines of different vehicle types on the size of the belt pulley, and the universality and the practicability of the belt pulley are improved.

Description

Technical Field

[0001] The utility model relates to the field of pulleys, in particular to an aluminum pulley for an automobile engine which is easy to produce by die casting. Background Art

[0002] Pulleys (also known as pulleys or pulleys) play an important role in mechanical transmission systems, mainly used to transmit power and rotation.

[0003] In the automobile engine system, the pulley is a key transmission component. Its performance and quality directly affect the normal operation of the engine and the performance of the entire vehicle. Aluminum pulleys have been widely used in automobile engines because of their advantages such as light weight and good heat dissipation.

[0004] However, the existing pulleys have some shortcomings: on the one hand, the lengths of the rotating shafts of different models of cars will be different. When some pulleys are installed on the rotating shaft, the length of the rotating shaft is not enough to install another set of pulleys. When another set of pulleys needs to be installed for modification, special tools are required to weld them to the current pulleys, and they cannot be installed quickly, which is troublesome and inconvenient. On the other hand, the belt contact release position of some pulleys does not have a channel for dissipating heat from the belt, which causes the belt to be transmitted for a long time and the temperature on the inside cannot be dissipated in time, causing the belt to easily age after long-term operation. For this reason, an automobile engine aluminum pulley that is easy to die-cast is proposed to solve the above problems. Summary of the Invention

[0005] In order to make up for the above shortcomings, the utility model provides an automobile engine aluminum pulley that is easy to die-cast and aims to improve the problem in the prior art that it needs to be welded to the current pulley through special tools, cannot be installed quickly, and is relatively troublesome and inconvenient.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: an aluminum pulley for an automobile engine that is easy to produce by die casting, comprising a wheel body, a splicing assembly being detachably mounted on the inner wall of the wheel body, a mounting hole being opened at the center of the wheel body, and the splicing assembly including a positioning shaft;

[0007] The outer walls on both sides of the positioning shaft are rotatably connected to a rotating block, the rotation center point of the rotating block is fixedly connected to a connecting block, both sides of the connecting block are hinged with hinged rods, and the two groups of hinged rods are hinged with wedge blocks at one end away from the connecting block, and the two groups of wedge blocks are elastically connected by a limit spring.

[0008] As a further description of the above technical solution:

[0009] The wheel body surface is provided with three groups of penetrating heat dissipation holes a, the outer arc surface of the front end of the wheel body is provided with multiple groups of heat dissipation channels, the back of the wheel body is provided with multiple groups of heat dissipation holes b, and the surface of the wheel body is fixedly connected with an anti-slip layer.

[0010] As a further description of the above technical solution:

[0011] The surface of the wheel body is provided with three groups of empty grooves, and the outer wall of the positioning shaft contacts the inner wall of the empty grooves.

[0012] As a further description of the above technical solution:

[0013] The plane at the rear end of the wedge is in contact with the surface of the wheel body.

[0014] As a further description of the above technical solution:

[0015] The wedge blocks penetrate through and are slidably connected to the inner walls on both sides of the positioning shaft.

[0016] As a further description of the above technical solution:

[0017] The connecting shaft is rotatably connected to the inner wall of the positioning shaft.

[0018] As a further description of the above technical solution:

[0019] The connecting block is rotatably connected to the inner wall of the top end of the positioning shaft.

[0020] As a further description of the above technical solution:

[0021] The end of the connecting shaft is fixedly connected to the rotation center point of another group of connecting blocks.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the present invention, the design of the splicing assembly enables the two sets of wheel bodies to be quickly spliced together to adapt to the situation where the equipment shaft is insufficient in length. The cooperation between the positioning shaft and the wedge block makes the splicing process simple and quick, without the need for additional tools and complicated operations. This highly adaptable design meets the special requirements of different models of engines for pulley size, and improves the versatility and practicality of the pulley.

[0024] 2. In the present invention, the pulley is provided with heat dissipation holes a, heat dissipation channels and heat dissipation holes b, forming a good heat dissipation system. During the belt transmission process, these heat dissipation structures can effectively dissipate heat for the belt, reduce the temperature of the belt, reduce the aging and damage problems of the belt caused by overheating, and extend the service life of the belt. At the same time, the anti-slip layer on the surface of the wheel body increases the friction between the pulley and the belt, ensuring the stable transmission of the belt and further improving the performance and reliability of the engine.

[0025] 3. In the present invention, by providing a plurality of groups of straight grooves and through-hole grooves, the entire wheel body can be quickly formed by die-casting after pouring during production without going through multiple processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an aluminum pulley for an automobile engine that is easy to produce by die-casting, as proposed by the utility model;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of a splicing assembly of an aluminum pulley for an automobile engine that is easy to produce by die-casting, as proposed by the utility model;

[0028] Figure 3 This is a partial cross-sectional structural diagram of the right side of a positioning shaft of an aluminum pulley for an automobile engine that is easy to produce by die casting, as proposed by the utility model;

[0029] Figure 4 This is a schematic diagram of the protective layer structure of an aluminum pulley for an automobile engine that is easy to produce by die casting, as proposed by the utility model.

[0030] Legend:

[0031] 1. Wheel body; 2. Splicing assembly; 21. Positioning shaft; 22. Rotating block; 23. Wedge block; 24. Connecting block; 25. Articulated rod; 26. Limit spring; 27. Connecting shaft; 3. Mounting hole; 4. Heat dissipation hole a; 5. Heat dissipation channel; 6. Heat dissipation hole b; 7. Anti-slip layer. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1 - Figure 3 The utility model provides an embodiment: an aluminum pulley for an automobile engine that is easy to produce by die-casting, comprising a wheel body 1, a splicing component 2 being detachably mounted on the inner wall of the wheel body 1, a mounting hole 3 being opened at the center of the wheel body 1, and the mounting hole 3 being opened on the surface of the wheel body 1 so that the entire wheel can be fixed on the rotating shaft of the equipment, so that the rotating shaft of the equipment can drive the mounting hole 3 to rotate, thereby driving the belt mounted on the surface of the wheel body 1 for transmission.

[0034] Reference Figure 2 and Figure 3 The splicing assembly 2 includes a positioning shaft 21. Three groups of empty grooves are opened on the surface of the wheel body 1. The outer wall of the positioning shaft 21 contacts the inner wall of the empty groove. The length of the positioning shaft 21 is equal to the length after the two groups of wheel bodies 1 are spliced, and the diameter of the positioning shaft 21 fits the inner wall of the empty groove. The outer walls on both sides of the positioning shaft 21 are rotatably connected with a rotating block 22. The surface of the rotating block 22 is provided with an anti-slip groove, which can facilitate the rotation of the rotating block 22. The rotation center point of the rotating block 22 is fixedly connected to a connecting block 24. The connecting block 24 is rotatably connected to the inner wall of the top end of the positioning shaft 21. The rotation center axis of the connecting block 24 is fixedly connected to a connecting shaft 27. The end of the connecting shaft 27 is fixedly connected to the rotation center point of the other group of connecting blocks 24. The two groups of connecting blocks 24 are connected in series through the connecting shaft 27, so that no matter whether the rotating block 22 on the left or right side is rotated, the other group can be driven to rotate by the connecting shaft 27.

[0035] Reference Figure 2 and Figure 3 The connecting shaft 27 is rotatably connected to the inner wall of the positioning shaft 21, and both sides of the connecting block 24 are hinged with a hinge rod 25. The two sets of hinge rods 25 are hinged with a wedge 23 at one end away from the connecting block 24. By rotating the rotating block 22, the connecting block 24 is driven to rotate synchronously, thereby pulling the corresponding wedge blocks 23 closer to or away from each other through the hinge rod 25. The wedge blocks 23 pass through and are slidably connected to the inner walls of the positioning shaft 21 on both sides. The plane of the rear end of the wedge block 23 contacts the surface of the wheel body 1. The contact between the two can elastically connect the two sets of wedge blocks 23 of the positioning shaft 21 through a limit spring 26. By arranging a limit spring 26 between the upper and lower sets of wedge blocks 23, the two sets of wedge blocks 23 can be quickly reset to their positions after being pulled by the following hinge rod 25.

[0036] Reference Figure 1 and Figure 4 , three groups of penetrating heat dissipation holes a4 are provided on the surface of the wheel body 1, and multiple groups of heat dissipation channels 5 are provided on the outer arc surface of the front end of the wheel body 1. The multiple groups of heat dissipation channels 5 can make the belt dissipate heat from the inside through the cooperation of the multiple groups of heat dissipation channels 5 and the heat dissipation holes b6 when the belt is sleeved on the surface of the wheel body 1 for transmission and rotation, thereby extending the service life of the belt. Multiple groups of heat dissipation holes b6 are provided on the back of the wheel body 1, and an anti-slip layer 7 is fixedly connected to the surface of the wheel body 1. The material used for the anti-slip layer 7 is a sandblasting coating. By providing the anti-slip layer 7 on the belt contact surface of the wheel body 1, the friction between the belt and the wheel body 1 can be increased, and by providing the multiple groups of heat dissipation channels 5 and the heat dissipation holes a4 and the mounting holes 3 on the surface of the wheel body 1, the wheel body 1 as a whole is more convenient and quick during die-casting, and no more production processes are required.

[0037] Working principle: When two sets of pulleys need to be installed at the rotating shaft of the equipment, but the length of the rotating shaft is insufficient, the two sets of wheel bodies 1 need to be spliced together, and the positioning shaft 21 is inserted into the empty groove of the two sets of wheel bodies 1. At this time, the inner wall of the empty groove of the wheel body 1 will squeeze the inclined surface of the two sets of wedge blocks 23, so that the two sets of wedge blocks 23 are close to each other on the inner wall of the positioning shaft 21, and the limit spring 26 is elastically compressed until the positioning shaft 21 completely passes through the other set of wheel bodies 1. The two sets of wedge blocks 23 will be subject to the elastic action of the limit spring 26 to quickly reset them, so that the back of the wedge block 23 contacts the surface of the passed wheel body 1, and at the same time, the flat surface of the two sets of wedge blocks 23 at the other end of the positioning shaft 21 will contact the surface of the current wheel body 1, thereby fixing the spliced position of the two sets of wheel bodies 1.

[0038] Fix the pulley to the equipment shaft through the mounting hole 3. When the equipment shaft rotates, it drives the wheel body 1 to rotate and transmit the belt. During the belt transmission process, the anti-slip layer 7 increases the friction between the belt and the belt to ensure stable transmission. At the same time, the heat dissipation holes a4, the heat dissipation channels 5 and the heat dissipation holes b6 work together to dissipate the heat for the belt and extend the service life of the belt. If it is necessary to disassemble the spliced wheel body 1, rotate the rotating block 22 in the opposite direction, thereby driving the other set of rotating blocks 22 to rotate synchronously through the connecting shaft 27, release the fixation of the positioning shaft 21 and the wheel body 1, and remove the positioning shaft 21 to separate the two sets of wheel bodies 1.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An aluminum pulley for an automobile engine that is easy to produce by die casting, comprising a wheel body (1), characterized in that: A splicing assembly (2) is detachably mounted on the inner wall of the wheel body (1); a mounting hole (3) is provided at the center of the wheel body (1); and the splicing assembly (2) includes a positioning shaft (21); The outer walls on both sides of the positioning shaft (21) are rotatably connected to a rotating block (22), the rotation center point of the rotating block (22) is fixedly connected to a connecting block (24), the rotation center axis of the connecting block (24) is fixedly connected to a connecting shaft (27), both sides of the connecting block (24) are hinged to hinged rods (25), and the ends of the two groups of hinged rods (25) away from the connecting block (24) are hinged to wedge blocks (23), and the two groups of wedge blocks (23) are elastically connected via a limit spring (26).

2. The aluminum pulley for an automobile engine that is easy to produce by die casting according to claim 1, characterized in that: The wheel body (1) has three groups of penetrating heat dissipation holes a (4) on its surface, a plurality of heat dissipation channels (5) on its front end outer arc surface, a plurality of heat dissipation holes b (6) on its back, and an anti-slip layer (7) fixedly connected to the surface of the wheel body (1).

3. The aluminum pulley for an automobile engine that is easy to produce by die casting according to claim 1, characterized in that: The surface of the wheel body (1) is provided with three groups of empty grooves, and the outer wall of the positioning shaft (21) contacts the inner wall of the empty grooves.

4. The aluminum pulley for an automobile engine that is easy to produce by die casting according to claim 1, characterized in that: The plane at the rear end of the wedge (23) contacts the surface of the wheel body (1).

5. The aluminum pulley for an automobile engine that is easy to produce by die casting according to claim 1, characterized in that: The wedge blocks (23) penetrate and are slidably connected to the inner walls on both sides of the positioning shaft (21).

6. The aluminum pulley for an automobile engine that is easy to produce by die casting according to claim 1, characterized in that: The connecting shaft (27) is rotatably connected to the inner wall of the positioning shaft (21).

7. The aluminum pulley for an automobile engine that is easy to produce by die casting according to claim 1, characterized in that: The connecting block (24) is rotatably connected to the inner wall of the top end of the positioning shaft (21).

8. The aluminum pulley for automobile engine that is easy to produce by die casting according to claim 1, characterized in that: The end of the connecting shaft (27) is fixedly connected to the rotation center point of another group of connecting blocks (24).

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