A maintenance-friendly flywheel ring gear

Abstract

This utility model discloses an easy-to-maintain flywheel gear ring, belonging to the field of engine technology. It solves the problem that existing structures require the entire flywheel gear ring to be removed for replacement, resulting in long processing times and low efficiency. The easy-to-maintain gear ring body includes a flywheel body, with the gear ring body fitted onto one side of the flywheel body. The flywheel body and the gear ring body are connected by bolts. The gear ring body includes a left gear ring and a right gear ring, both of which are semi-circular ring structures. The left gear ring has a wedge-shaped groove, and the right gear ring has a wedge-shaped block corresponding to the wedge-shaped groove, with the wedge-shaped block movably inserted into the wedge-shaped groove. The other side of the flywheel body has a detachable heat dissipation structure to prevent overheating. The heat dissipation structure includes an annular base plate and multiple heat dissipation plates. This utility model provides an easy-to-maintain flywheel gear ring, improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and more specifically, to an easy-to-maintain flywheel gear ring. Background Technology

[0002] The gear ring assembly is the connector that transmits power from the starter to the crankshaft. Its main function is to realize the power transmission between the starter and the crankshaft.

[0003] Currently, the connection between the gear ring body and the flywheel in diesel and gasoline engines is usually achieved by either interfering with the flywheel's support surface through the inner bore of the gear ring body, or by connecting the gear ring body to the flywheel with bolts. When a gear ring chipps, replacing it requires completely removing the gear ring body from the engine, replacing the gear ring, and then reinstalling it. This is particularly problematic in applications such as ships and generator sets, where removing the gear ring body often requires axially shifting the engine along the crankshaft, which is frequently not feasible. In such cases, the engine must be lifted for replacement. For large engines, lifting is extremely difficult, resulting in a challenging, time-consuming, and inefficient gear ring replacement process. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art by providing an easy-to-maintain flywheel gear ring. The entire gear ring body is split into two halves and spliced ​​together by wedge groove positioning, which greatly shortens the time required to replace the gear ring body and greatly improves work efficiency.

[0005] The technical solution of this utility model is as follows: an easy-to-maintain flywheel ring gear includes a flywheel body, a ring gear body is fitted on one side of the flywheel body, the flywheel body and the ring gear body are connected by bolts, the ring gear body includes a left ring gear and a right ring gear, and both the left and right ring gears are semi-circular ring structures, the left ring gear is provided with a wedge-shaped groove, the right ring gear is provided with a wedge-shaped block corresponding to the wedge-shaped groove, and the wedge-shaped block is movably inserted into the wedge-shaped groove, the other side of the flywheel body is detachably provided with a heat dissipation structure to prevent the flywheel body from overheating, the heat dissipation structure includes an annular base plate and multiple heat dissipation plates, the heat dissipation plates are arc-shaped structures, the multiple heat dissipation plates are distributed on the annular base plate at equal intervals around the circumference, the other side of the flywheel body is provided with an annular groove adapted to the annular base plate, and the annular base plate is detachably installed in the annular groove.

[0006] Furthermore, the aforementioned heat sinks and the annular base plate are integrated into a single structure.

[0007] Furthermore, an arc-shaped mounting hole is provided on the annular base plate between two adjacent heat sinks, and a fastening bolt is provided in the arc-shaped mounting hole. The fastening bolt passes through the arc-shaped mounting hole and is threadedly connected to the flywheel body.

[0008] Furthermore, the outer wall surface on one side of the flywheel body is provided with a plurality of ventilation holes arranged in a circular pattern at equal intervals, and each ventilation hole is located between two adjacent heat sinks.

[0009] Furthermore, the cross-section of the ventilation hole is an isosceles trapezoid, and the smaller end of the ventilation hole faces the outer edge of the flywheel body.

[0010] Furthermore, the flywheel body has multiple positioning holes on one side, and the left and right gear rings have multiple positioning pins on their sides near the flywheel body. The multiple positioning pins are inserted into the multiple positioning holes one by one.

[0011] Beneficial effects

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] This utility model discloses an easy-to-maintain flywheel gear ring. By dividing the gear ring body into a left gear ring and a right gear ring, and combining wedge-shaped grooves and wedge-shaped blocks to form a complete gear ring body, the gear ring body can be replaced without disassembling the flywheel body, which greatly shortens the time required to replace the gear ring body and greatly improves work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a side sectional view of the present invention.

[0016] Figure 3 This is a partial cross-sectional structural diagram of the flywheel body in this utility model;

[0017] Figure 4 This is a schematic diagram of the main structure of the left gear ring in this utility model;

[0018] Figure 5 This is a schematic diagram of the front view of the right gear ring in this utility model.

[0019] Wherein: 1-flywheel body, 2-gear ring body, 3-wedge groove, 4-wedge block, 5-annular base plate, 6-heat dissipation plate, 7-annular groove, 8-ventilation hole, 9-arc mounting hole, 10-fastening bolt, 11-positioning hole, 12-positioning pin, 21-left gear ring, 22-right gear ring. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0021] See Figure 1-5A maintenance-friendly flywheel ring gear includes a flywheel body 1 and a ring gear body 2 fitted on one side of the flywheel body 1. The flywheel body 1 and the ring gear body 2 are connected by bolts. The ring gear body includes a left ring gear 21 and a right ring gear 22, both of which are semi-circular ring structures. The left ring gear 21 has a wedge-shaped groove 3, and the right ring gear 22 has a wedge-shaped block 4 corresponding to the wedge-shaped groove 3. The wedge-shaped block 4 is movably inserted into the wedge-shaped groove 3. The other side of the flywheel body 1 is detachably provided with a heat dissipation structure to prevent the flywheel body 1 from overheating. The heat dissipation structure includes an annular base plate 5 and multiple heat dissipation plates 6. The heat dissipation plates 6 are arc-shaped and are distributed circumferentially at equal intervals on the annular base plate 5. The other side of the flywheel body 1 is provided with an annular groove 7 adapted to the annular base plate 5. The annular base plate 5 is detachably installed in the annular groove 7.

[0022] When replacing the gear ring body 2, the left gear ring 21 can be placed on the support surface of the flywheel body 1 first, and then the wedge block 4 on the right gear ring 22 can be spliced ​​with the corresponding wedge groove 3. After splicing, the right gear ring 22 is also located on the support surface of the flywheel body 1, and the left gear ring 21 and the right gear ring 22 are combined to form the complete gear ring body 2. Similarly, the right gear ring 22 can be placed on the support surface of the flywheel body 1 first, and then the left gear ring 21 and the right gear ring 22 can be spliced. Then, the spliced ​​gear ring body 2 can be fixedly installed on the flywheel body 1 by bolt connection. In this application, the gear ring body 2 is divided into a left gear ring 21 and a right gear ring 22. The complete gear ring body 2 is formed by splicing the wedge groove 4 and the wedge block 3. The replacement of the gear ring body 2 can be completed without disassembling the flywheel body 1, which greatly shortens the time required to replace the gear ring body 2 and greatly improves work efficiency.

[0023] In this embodiment, the multiple heat sinks 6 and the annular base plate 5 are integrated into one structure, which enhances the overall structural strength of the heat sinks 6 and the annular base plate 5.

[0024] In this embodiment, an arc-shaped mounting hole 9 is provided on the annular base plate 5 between two adjacent heat sinks 6. A fastening bolt 10 is provided in the arc-shaped mounting hole 9. The fastening bolt 10 passes through the arc-shaped mounting hole 9 and is threadedly connected to the flywheel body 1. The annular base plate 5 is installed on the flywheel body 1 by bolt connection, which makes it easy to remove the heat sink 6 for maintenance. The heat sink 6 is installed on the flywheel body 1 through the annular base plate 5. The position of the heat sink 6 on the side of the flywheel body 1 can be adjusted by rotating the annular base plate 5 to achieve the best heat dissipation effect. Then, the heat sink 6 is fixedly installed on the flywheel body 1 by fastening the bolt 10 through the arc-shaped mounting hole 9 and threadedly connected to the flywheel body 1.

[0025] In this embodiment, a plurality of ventilation holes 8 are arranged in a circular pattern on the outer wall of one side of the flywheel body 1. Each ventilation hole 8 is located between two adjacent heat sinks 6. The ventilation holes 8 and the heat sinks 6 are staggered. When the flywheel body 1 rotates, the heat sinks 6 located on its side rotate accordingly, thereby driving the airflow. The airflow flowing on one side of the flywheel body 1 flows away through the ventilation holes 8, thereby carrying away the heat on the surface of the flywheel body 1 and further optimizing the overall heat dissipation effect of the flywheel body 1. At the same time, the ventilation holes 6 can reduce weight.

[0026] In this embodiment, the cross-section of the ventilation hole 8 is an isosceles trapezoid, and the end of the ventilation hole 8 with a smaller opening faces the outer edge of the flywheel body 1. The width of the ventilation hole 8 gradually decreases in the direction of the outer edge of the flywheel body 1. By reducing the width of the outlet of the ventilation hole 8, the gas flow rate is accelerated, thereby carrying away more heat and further improving the heat dissipation effect.

[0027] In this embodiment, a plurality of positioning holes 11 are provided on one side of the flywheel body 1. A plurality of positioning pins 12 are provided on the side of the left gear ring 21 and the right gear ring 22 near the flywheel body 1. The plurality of positioning pins 12 are inserted into the plurality of positioning holes 11 one by one. The depth of the positioning hole 11 is adapted to the length of the positioning pin 12, and the length of the positioning pin 12 is greater than the thickness of the gear ring body 2. When the left gear ring 21 and the right gear ring 22 are spliced, the left gear ring 21 or the right gear ring 22 is first installed on the support surface of the flywheel body 1. Then, the wedge block 4 on the corresponding right gear ring 22 is spliced ​​with the wedge groove 3 on the left gear ring 21. Since the length of the positioning pin 12 is greater than the thickness of the gear ring body 2, the positioning pin 12 on the right gear ring 22 will be inserted into the corresponding positioning hole 11 during splicing, which plays an auxiliary positioning role, improves the efficiency of splicing the left gear ring 21 and the right gear ring 22, and effectively improves the work efficiency.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A maintenance-friendly flywheel ring gear, comprising a flywheel body (1), characterized in that, A gear ring body (2) is fitted on one side of the flywheel body (1). The flywheel body (1) and the gear ring body (2) are connected by bolts. The gear ring body includes a left gear ring (21) and a right gear ring (22). Both the left gear ring (21) and the right gear ring (22) are semi-circular ring structures. The left gear ring (21) is provided with a wedge-shaped groove (3). The right gear ring (22) is provided with a wedge-shaped block (4) corresponding to the wedge-shaped groove (3). The wedge-shaped block (4) is movably inserted into the wedge-shaped groove (3). Inside, the flywheel body (1) is provided with a heat dissipation structure on the other side to prevent the flywheel body (1) from overheating. The heat dissipation structure includes an annular base plate (5) and multiple heat dissipation plates (6). The heat dissipation plates (6) are arc-shaped and are distributed on the annular base plate (5) at equal intervals around the circumference. The flywheel body (1) is provided with an annular groove (7) that is adapted to the annular base plate (5). The annular base plate (5) is detachably installed in the annular groove (7).

2. The easy-to-maintain flywheel ring gear according to claim 1, characterized in that, The multiple heat sinks (6) and the annular base plate (5) are integrated into one structure.

3. The easy-to-maintain flywheel ring gear according to claim 1, characterized in that, An arc-shaped mounting hole (9) is provided on the annular base plate (5) between two adjacent heat sinks (6). A fastening bolt (10) is provided in the arc-shaped mounting hole (9). The fastening bolt (10) passes through the arc-shaped mounting hole (9) and is threadedly connected to the flywheel body (1).

4. The easy-to-maintain flywheel ring gear according to claim 1, characterized in that, The flywheel body (1) has a plurality of ventilation holes (8) arranged in a circular pattern at equal intervals on one side of its outer wall surface, and each ventilation hole (8) is located between two adjacent heat sinks (6).

5. The easy-to-maintain flywheel gear ring according to claim 4, characterized in that, The cross-section of the ventilation hole (8) is an isosceles trapezoid, and the smaller end of the ventilation hole (8) faces the outer edge of the flywheel body (1).

6. The easy-to-maintain flywheel ring gear according to claim 1, characterized in that, The flywheel body (1) has multiple positioning holes (11) on one side. The left gear ring (21) and the right gear ring (22) are each provided with multiple positioning pins (12) on the side of the flywheel body (1) and the multiple positioning pins (12) are inserted into the multiple positioning holes (11) one by one.

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