High-strength crankshaft pulley

Abstract

The utility model provides a high-strength crankshaft pulley, and relates to the technical field of crankshaft pulleys. The high-strength crankshaft belt pulley comprises a belt pulley body, a plurality of pulley grooves are formed in the outer ring of the belt pulley body, and a mounting hole is formed in the middle of the belt pulley body; a plurality of sliding grooves are formed in the two sides of the belt wheel body, a plurality of stabilizing grooves are formed in the two sides of the belt wheel body, a containing groove is formed in the middle of each stabilizing groove, heat dissipation holes are formed in the close sides of every two adjacent stabilizing grooves, and a connecting structure is arranged on the inner wall of each sliding groove. According to the high-strength crankshaft belt pulley, the belt pulley body is driven by the connecting shaft to rotate, the rapid heat dissipation effect is achieved, the effect of prolonging the service life of the crankshaft belt pulley is achieved, the belt pulley body is driven by the connecting shaft to rotate, and the position limiting effect is achieved; and the use stability of the crankshaft pulley is improved.

Description

Technical Field

[0001] The utility model relates to a high-strength crankshaft pulley, belonging to the technical field of crankshaft pulleys. Background Art

[0002] The crankshaft pulley, also known as the crankshaft torsional vibration damping pulley, is used to connect to the front end of the crankshaft. Its main function is to reduce the torsional vibration of the crankshaft and output the torque of the crankshaft to drive the operation of the accessory belt drive systems such as water pumps, air compressors, and generators.

[0003] Although the existing crankshaft pulleys can perform daily transmission operations, in the actual use process, due to the continuous friction between the belt and the pulley, the temperature at the connection between the belt and the pulley continues to rise, which easily causes damage to the rubber ring inside the crankshaft pulley, thereby shortening the service life of the crankshaft pulley. And during the transmission process, the belt sleeved on the crankshaft pulley is only limited by the pulley groove, so that the belt is prone to position deviation or even falling off during the transmission, and thus the use stability of the crankshaft pulley is insufficient. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The utility model provides a high-strength crankshaft pulley to solve the problems of short service life of the crankshaft pulley and insufficient use stability of the crankshaft pulley in the prior art.

[0006] (2) Technical Solutions

[0007] The utility model is realized through the following technical solutions: a high-strength crankshaft pulley, including a pulley body, wherein a plurality of pulley grooves are provided on the outer circle of the pulley body, and an installation hole is provided in the middle of the pulley body;

[0008] A plurality of sliding grooves are provided on both sides of the pulley body, and a plurality of stable grooves are provided on both sides of the pulley body. A receiving groove is provided in the middle of each stable groove. Heat dissipation holes are provided on the adjacent sides of two adjacent stable grooves. A connecting structure is provided on the inner wall of each sliding groove, and a protruding block is provided on the connecting structure. Two diversion grooves are provided in the middle of each protruding block; the connecting structure can drive the protruding block to slide in the depth direction of the stable groove, so as to guide the wind generated during the rotation of the pulley body into the heat dissipation holes through the diversion grooves, so as to dissipate heat from the connection between the pulley and the belt.

[0009] Preferably, the connecting structure includes a sliding disk, a spring is fixed at one end of the sliding disk, a fixing rod is fixed in the middle of the sliding disk, and the protruding block is fixed at the other end of the fixing rod.

[0010] Preferably, one end of each of the springs is fixed to one end of each sliding disk away from the central axis of the pulley body, and the other end of each of the springs is fixed to the inner wall of each sliding groove on the side away from the central axis of the pulley body.

[0011] Preferably, the outer surface of each sliding disk is slidably connected to the inner wall of each sliding groove. Each sliding disk is circularly arranged, and the cross-section of each sliding groove is circularly arranged. The fixing rod passes through the middle of the sliding groove and the stabilizing groove.

[0012] Preferably, the outer surface of each protruding block is slidably connected to the inner wall of each stabilizing groove. Each heat dissipation hole penetrates through the middle of the pulley body. Two of the guiding grooves penetrate through the middle of one of the protruding blocks, and the cross-section of each guiding groove is arc-shaped.

[0013] Preferably, a limiting frame is fixed to the upper end of each protruding block, and the outer surface of the limiting frame is in contact with the inner wall of the receiving groove.

[0014] Preferably, the mounting hole penetrates through the middle of the pulley body, and the vertical section of the pulley body is U-shaped.

[0015] The present utility model provides a high-strength crankshaft pulley, and the beneficial effects thereof are as follows:

[0016] (1) For this high-strength crankshaft pulley, the pulley body rotates under the drive of the connecting shaft, enabling the sliding disk, fixing rod, protruding block, guiding groove, and heat dissipation hole to cooperate with each other to achieve the effect of rapid heat dissipation, avoiding damage to the rubber ring inside the crankshaft pulley caused by continuous temperature rise, effectively improving the overall strength of the crankshaft pulley, and further achieving the function of extending the service life of the crankshaft pulley.

[0017] (2) For this high-strength crankshaft pulley, the pulley body rotates under the drive of the connecting shaft, enabling the sliding disk, fixing rod, protruding block, and limiting frame to cooperate with each other to achieve the effect of position limitation, avoiding the situation of belt position deviation or even detachment, and further achieving the function of improving the use stability of the crankshaft pulley. Description of the Drawings

[0018] Figure 1 is a three-dimensional view of the present utility model;

[0019] Figure 2 is a sectional view of the pulley body of the present utility model;

[0020] Figure 3 is the present utility model Figure 2 enlarged view of the structure of part A;

[0021] Figure 4 is a sectional view of the protruding block of the present utility model.

[0022]

Description of Main Component Symbols

[0023] 1. Pulley body; 2. Groove; 3. Mounting hole; 4. Slide groove; 5. Stabilizing groove; 6. Storage groove; 7. Slide plate; 8. Spring; 9. Fixed rod; 10. Protruding block; 11. Flow guide groove; 12. Heat dissipation hole; 13. Limiting frame. Detailed implementation

[0024] An embodiment of the utility model provides a high-strength crankshaft pulley.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , which includes a pulley body 1. The pulley body 1 is the crankshaft pulley body 1. A plurality of grooves 2 are provided on the outer ring of the pulley body 1. The grooves 2 are used for sleeving the belt. In cooperation with the limiting frame 13, the sleeved belt can be limited to prevent the belt from shifting or even falling off. A mounting hole 3 is provided in the middle of the pulley body 1, and the mounting hole 3 can be used to mount on the connecting shaft with bolts; A plurality of slide grooves 4 are provided on both sides of the pulley body 1, and the slide grooves 4 provide space support for the sliding of the slide plate 7. A plurality of stabilizing grooves 5 are provided on both sides of the pulley body 1, and the stabilizing grooves 5 provide space support for the sliding of the protruding blocks 10. A storage groove 6 is provided in the middle of each stabilizing groove 5. When the pulley body 1 does not rotate, the limiting frame 13 can be stored in the storage groove 6. Heat dissipation holes 12 are provided on the adjacent sides of two adjacent stabilizing grooves 5. The heat dissipation holes 12 cooperate with the flow guide grooves 11 to dissipate heat from the connection between the belt and the pulley. A connecting structure is provided on the inner wall of each slide groove 4. The connecting structure includes a slide plate 7. One end of the slide plate 7 is fixed with a spring 8, the middle of the slide plate 7 is fixed with a fixed rod 9, and the other end of the fixed rod 9 is fixed with a protruding block 10.

[0026] Please refer to again Figure 1 , Figure 2 , Figure 3 and Figure 4 , and specifically, it should be noted that one end of each spring 8 is fixed at one end of each slide plate 7 away from the central axis of the pulley body 1, the other end of each spring 8 is fixed on the inner wall of each slide groove 4 on the side away from the central axis of the pulley body 1. The outer surface of each slide plate 7 is slidably connected to the inner wall of each slide groove 4. Each slide plate 7 is circularly arranged, the cross-section of each slide groove 4 is circularly arranged. The fixed rod 9 penetrates through the middle of the slide groove 4 and the stabilizing groove 5. The outer surface of each protruding block 10 is slidably connected to the inner wall of each stabilizing groove 5. Each heat dissipation hole 12 penetrates through the middle of the pulley body 1. Two flow guide grooves 11 penetrate through the middle of one of the protruding blocks 10. The cross-section of each flow guide groove 11 is arc-shaped.

[0027] Please refer to again Figure 1 , Figure 2 ,Figure 3 and Figure 4 Specifically, a limiting frame 13 is fixed to the upper end of each protruding block 10, and the outer surface of the limiting frame 13 is in contact with the inner wall of the storage groove 6.

[0028] When the utility model is in use: First, the pulley body 1 is installed on the connecting shaft, and then the belt is sleeved in the pulley groove 2. The pulley body 1 rotates under the drive of the connecting shaft, and the centrifugal force generated when the pulley body 1 rotates drives the sliding plate 7 to slide. The sliding sliding plate 7 compresses the fixed spring 8 under the stability of the sliding groove 4, so that the sliding plate 7 obtains a compression space, and can drive the fixed rod 9 fixed in the middle to move. The moving fixed rod 9 drives the protruding block 10 fixed at the other end to slide under the stability of the stable groove 5. The sliding protruding block 10 is higher than the edge position of the pulley body 1. At this time, one of the two diversion grooves 11 opened in the middle of the protruding block 10 diverts the wind during the rotation process. After the wind is diverted by the diversion groove 11, it enters the heat dissipation holes 12, so that the air flow speed in the heat dissipation holes 12 is accelerated. The rapidly flowing air can take away the excess heat generated by the friction between the belt and the pulley groove 2, achieving the effect of rapid heat dissipation, avoiding the damage of the rubber ring built in the crankshaft pulley due to the continuous increase of temperature, effectively improving the overall strength of the crankshaft pulley, and further achieving the effect of extending the service life of the crankshaft pulley. At the same time, the pulley body 1 rotates under the drive of the connecting shaft, and the centrifugal force generated by the rotating pulley body 1 drives the sliding plate 7 to move. The moving sliding plate 7 drives the protruding block 10 to be higher than the edge position of the pulley body 1 through the fixed rod 9, so that the limiting frame 13 fixed to the protruding block 10 is higher than the edge position of the pulley body 1, and the pulley groove 2 can limit the sleeved belt, achieving the effect of position limitation, avoiding the occurrence of belt position deviation or even falling off, and further achieving the effect of improving the use stability of the crankshaft pulley.

[0029] Working principle: The pulley body 1 rotates under the drive of the connecting shaft, so that the pulley body 1 diverts the wind through the diversion groove 11 opened in the protruding block 10, achieving the effect of rapid heat dissipation, avoiding the damage of the rubber ring built in the crankshaft pulley due to the continuous increase of temperature, effectively improving the overall strength of the crankshaft pulley, and further achieving the effect of extending the service life of the crankshaft pulley. At the same time, the pulley body 1 rotates under the drive of the connecting shaft, so that the pulley body 1 drives the limiting frame 13 to move through the protruding block 10, achieving the effect of position limitation, avoiding the occurrence of belt position deviation or even falling off, and further achieving the effect of improving the use stability of the crankshaft pulley.

[0030] Please refer to again Figure 1 、 Figure 2 、 Figure 3 and Figure 4, specifically, the mounting hole 3 runs through the middle of the pulley body 1, and the vertical section of the pulley body 1 is U-shaped.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength crankshaft pulley, comprising a pulley body (1), characterized in that: The outer ring of the pulley body (1) is provided with a plurality of wheel grooves (2), and the middle part of the pulley body (1) is provided with a mounting hole (3); A plurality of slide grooves (4) are provided on both sides of the pulley body (1), a plurality of stabilizing grooves (5) are provided on both sides of the pulley body (1), a storage groove (6) is provided in the middle of each stabilizing groove (5), and heat dissipation holes (12) are provided on the adjacent sides of two adjacent stabilizing grooves (5), a connection structure is provided on the inner wall of each slide groove (4), a protruding block (10) is provided on the connection structure, and two guide grooves (11) are provided in the middle of each protruding block (10); the connection structure can slide with the protruding block (10) in the depth direction of the stabilizing groove (5), so as to guide the wind generated during the rotation of the pulley body (1) to the heat dissipation hole (12) by relying on the guide groove (11), so as to dissipate heat at the connection between the pulley and the belt.

2. A high-strength crankshaft pulley according to claim 1, characterized in that: The connection structure comprises a sliding plate (7), a spring (8) is fixed to one end of the sliding plate (7), a fixing rod (9) is fixed to the middle of the sliding plate (7), and a protruding block (10) is fixed to the other end of the fixing rod (9).

3. A high-strength crankshaft pulley according to claim 2, characterized in that: One end of each spring (8) is fixed to one end of each sliding plate (7) away from the central axis of the pulley body (1), and the other end of each spring (8) is fixed to the inner wall of each sliding groove (4) away from the central axis of the pulley body (1).

4. A high-strength crankshaft pulley according to claim 2, characterized in that: The outer surface of each sliding plate (7) is slidably connected to the inner wall of each sliding groove (4), each sliding plate (7) is circular, and the cross section of each sliding groove (4) is circular. The fixing rod (9) passes through the middle of the sliding groove (4) and the stabilizing groove (5).

5. The high-strength crankshaft pulley according to claim 2, characterized in that: The outer surface of each protruding block (10) is slidably connected to the inner wall of each stabilizing groove (5), each heat dissipation hole (12) passes through the middle of the pulley body (1), and two guide grooves (11) pass through the middle of one of the protruding blocks (10), and each guide groove (11) has an arc-shaped cross section.

6. The high-strength crankshaft pulley according to claim 1, characterized in that: A limiting frame (13) is fixed to the upper end of each protruding block (10), and the outer surface of the limiting frame (13) is in contact with the inner wall of the receiving groove (6).

7. The high-strength crankshaft pulley according to claim 1, characterized in that: The mounting hole (3) passes through the middle of the pulley body (1), and the vertical section of the pulley body (1) is arranged in a U shape.

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