pinion gears

Abstract

The utility model belongs to gear production field, concretely is the centering gear, including gear body, the outside of gear body is equipped with the tooth surface, the centre of gear body has the slide rail, the inside joint of slide rail has the backing pad, the side welding of backing pad jacks up the rod, the other end welding of jack rod buckles, the inside of gear body is equipped with two sets of positioning structure, and the positioning structure includes the limit plate, by this structure design adds the positioning structure's design through in the inside of gear, can when needing to carry out the centering design, directly promotes the backing pad, makes the jack rod of backing pad one side to promote the buckle to enter to the appropriate position, then through the locating ball to clamp tightly and position buckle, complete the centering operation to gear through this way, thus avoid the structure to be more complex inherently, and the difficulty of replacement is bigger, therefore will lead to the gear toothed wheel situation when appearing in the use process, needs the longer replacement time, thereby influence the use of gear problem.

Description

Technical Field

[0001] This utility model belongs to the field of gear manufacturing, specifically self-aligning gears. Background Technology

[0002] A gear is a mechanical part composed of teeth, tooth grooves, a hub, and spokes. The teeth are evenly distributed on the rim according to a specific tooth profile. The hub is connected to the shaft by a key, and the spokes support the rim and the hub. The principle is to use the meshing of the teeth of the driving gear and the driven gear to transmit the rotational motion and torque of the driving gear to the driven gear through the mutual meshing of the teeth, so as to realize the transformation of speed, torque and change of motion direction. During the meshing process, the basic law of tooth profile meshing must be satisfied to ensure the smoothness of transmission.

[0003] Currently, existing gears may require adjustment of their centrifugal distance during use. Although existing self-aligning gears can adjust the centrifugal distance, their structure is relatively complex and the replacement is difficult. Therefore, when gear jamming occurs during use, a long replacement time is required, which affects the use of the gears.

[0004] Therefore, this utility model provides a self-aligning gear. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The self-aligning gear of this utility model includes a gear body, the gear body having a toothed surface on its exterior; a slide rail is opened at the center of the gear body, a pad is engaged inside the slide rail, a push rod is welded to one side of the pad, and a buckle is welded to the other end of the push rod; two sets of positioning structures are provided inside the gear body, each positioning structure including a limiting plate, a connecting plate welded to the top of the limiting plate, and a lever welded to the top of the connecting plate; three sets of positioning balls are welded to one side of the limiting plate, and springs are welded to one side of the three sets of positioning balls. A baffle is welded to the other side of the spring, and a through hole is opened in the center of the baffle, through which a positioning ball passes. This structural design, by adding a positioning structure inside the gear, allows for direct pushing of the pad when self-alignment is required. This causes the push rod on one side of the pad to push the buckle into the appropriate position, and then the positioning ball locks and positions the buckle. This method completes the gear self-alignment operation, thus avoiding the problem of the original structure being more complex and difficult to replace, which would lead to a longer replacement time when the gear gets stuck during use, thus affecting the use of the gear.

[0007] The gear body has a first groove on its surface, and a connecting plate is provided inside the first groove. The gear body also has a third groove inside, the diameter of which at its center matches the bottom diameter of the buckle. Six sets of cylindrical through holes are formed on both sides of the third groove, the diameter of which matches the diameter of the positioning ball. A baffle is welded inside the through holes of the third groove. A second groove is formed on the other side of the baffle, and a limiting plate is provided inside the second groove. The buckle has a circular top and its bottom can engage the positioning ball. A slot is formed in the center of the pad. The diameter of the first groove is larger than that of the connecting plate, and the diameter of the second groove is larger than that of the limiting plate. With this structural design, when the gear shaft center distance needs to be changed, only the external gear lever needs to be moved to push the connecting plate. Then, the connecting plate pulls the limiting plate, which in turn pulls the positioning ball to release the buckle, thus completing the self-aligning operation of the self-aligning gear.

[0008] The beneficial effects of this utility model are as follows: 1. Self-aligning gears: By adding a positioning structure inside the gear, when self-alignment is needed, the pad is directly pushed, causing the push rod on one side of the pad to push the buckle into the appropriate position. Then, the positioning ball locks and positions the buckle. This method completes the gear self-alignment operation. This avoids the problem that the structure itself is more complex and difficult to replace, which would lead to a longer replacement time when the gear gets stuck during use, thus affecting the use of the gear.

[0009] 2. Self-aligning gear: When it is necessary to change the center distance of the gear shaft, simply move the external lever of the gear to push the connecting plate. Then, the connecting plate pulls the limiting plate, which in turn pulls the positioning ball to release the buckle, thus completing the self-aligning operation of the self-aligning gear. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings.

[0011] Figure 1 This is a schematic diagram of the overall gear structure; Figure 2 This is a schematic diagram of the internal structure of a gear; Figure 3 This is a schematic diagram of the positioning structure; Figure 4 This is a schematic diagram of the cross-sectional structure of the gear; In the diagram: 1. Gear body; 2. Tooth surface; 3. Slide rail; 4. Pad; 5. Slot; 6. Paddle; 7. Connecting plate; 8. Push rod; 9. Buckle; 10. Limiting plate; 11. Baffle; 12. Spring; 13. Positioning ball; 14. First slide groove; 15. Second slide groove; 16. Third slide groove. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0013] Please see Figure 1-4 As shown, the self-aligning gear includes a gear body 1, with toothed surfaces 2 on its exterior; a slide rail 3 is located at the center of the gear body 1, and a pad 4 is engaged inside the slide rail 3; a push rod 8 is welded to one side of the pad 4, and a buckle 9 is welded to the other end of the push rod 8; two sets of positioning structures are provided inside the gear body 1, each positioning structure including a limiting plate 10, a connecting plate 7 welded to the top of the limiting plate 10, and a lever 6 welded to the top of the connecting plate 7; three sets of positioning balls 13 are welded to one side of the limiting plate 10. A spring 12 is welded to one side of the slide rail 3, and a baffle 11 is welded to the other side of the spring 12. A through hole is opened in the center of the baffle 11, and a positioning ball 13 passes through the through hole. This self-aligning gear achieves convenient self-alignment through its internal positioning structure. When the gear centrifugal distance needs to be adjusted, the operator pushes the pad 4 to slide within the slide rail 3. The pad 4 drives the buckle 9 to move along the third slide groove 16 to the target position via the push rod 8. At this time, the spring 12 pushes the positioning ball 13 to engage with the groove at the bottom of the buckle 9, forming three sets of positioning balls 13 on each side of the six-point positioning third slide groove 16, locking the buckle 9 in the new position. Since the positioning ball 13 and the two sides of the cylindrical through hole third slide groove 16 have the same precision fitting diameter, it ensures that the buckle 9 does not shift during transmission. This modular design avoids the complex bolt connection or keyway positioning method of traditional self-aligning gears, simplifying the self-aligning operation to a two-step "push-position" process, greatly shortening the replacement time.

[0014] The gear body 1 has a first groove 14 on its surface, and a connecting plate 7 is provided inside the first groove 14; the gear body 1 has a third groove 16 inside, and the diameter of the center of the third groove 16 is the same as the bottom diameter of the buckle 9; six sets of cylindrical through holes are opened on both sides of the third groove 16, and the diameter of the through holes is the same as the diameter of the positioning ball 13; a baffle 11 is welded inside the through holes of the third groove 16; a second groove 15 is opened on the other side of the baffle 11, and a limiting plate 10 is provided inside the second groove 15; the top of the buckle 9 is circular, and its bottom can engage the positioning ball 13; a slot 5 is opened in the center of the pad 4; the diameter of the first groove 14 is larger than The connecting plate 7; and the diameter of the second slide groove 15 is larger than that of the limiting plate 10; when realignment is required, the operator only needs to move the lever 6, which slides through the connecting plate 7 in the first slide groove 14, causing the limiting plate 10 to move towards the baffle 11 in the second slide groove 15; the limiting plate 10 pulls the positioning ball 13 to compress the spring 12, causing the positioning ball 13 to exit the groove of the buckle 9 and release the locking state; at this time, the buckle 9 can slide freely to the new position, and after releasing the lever 6, the spring 12 returns to its original position, and the positioning ball 13 locks in again; the entire unlocking process is achieved by directly operating the internal positioning structure through the external lever 6, without disassembling the gear body 1, realizing the efficient alignment mechanism of "one-click unlocking - quick adjustment", which solves the problem of disassembling multiple parts when replacing traditional alignment gears.

[0015] Working principle: The self-aligning gear achieves convenient self-alignment through an internal positioning structure. When the gear centrifugal distance needs to be adjusted, the operator pushes the pad 4 to slide within the slide rail 3. The pad 4, through the push rod 8, drives the buckle 9 to move along the third slide groove 16 to the target position. At this time, the spring 12 pushes the positioning ball 13 to engage with the groove at the bottom of the buckle 9, forming a six-point positioning system with three sets of positioning balls 13 on each side of the third slide groove 16, locking the buckle 9 in the new position. Since the positioning ball 13 and the precision fitting diameter of the cylindrical through hole on both sides of the third slide groove 16 are consistent, it ensures that the buckle 9 does not shift during transmission. This modular design avoids the complex bolt connections or keyway positioning methods of traditional self-aligning gears, simplifying the self-aligning operation to a two-step "push-position" process, significantly reducing replacement time. When self-aligning is required again, the operator only needs to move the lever 6. The lever 6 slides in the first slide groove 14 through the connecting plate 7, driving the limiting plate 10 to move towards the baffle 11 in the second slide groove 15. The limiting plate 10 pulls the positioning ball 13 to compress the spring 12, causing the positioning ball 13 to exit the groove of the buckle 9 and release the locking state. At this time, the buckle 9 can slide freely to the new position. After releasing the lever 6, the spring 12 returns to its original position, and the positioning ball 13 locks in again. The entire unlocking process is achieved by directly operating the internal positioning structure through the external lever 6, without disassembling the gear body 1, realizing a highly efficient self-aligning mechanism of "one-click unlocking and quick adjustment," solving the problem of disassembling multiple parts when replacing traditional self-aligning gears.

[0016] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-aligning gear, characterized in that: The gear body (1) includes a gear body (1) with toothed surfaces (2) on its exterior. A slide rail (3) is provided at the center of the gear body (1). A pad (4) is attached to the inside of the slide rail (3). A push rod (8) is welded to one side of the pad (4), and a buckle (9) is welded to the other end of the push rod (8). Two sets of positioning structures are provided inside the gear body (1). The positioning structures include a limiting plate (10). A connecting plate (7) is welded to the top of the limiting plate (10), and a paddle (6) is welded to the top of the connecting plate (7). Three sets of positioning balls (13) are welded to one side of the limiting plate (10). A spring (12) is welded to one side of the three sets of positioning balls (13). A baffle (11) is welded to the other side of the spring (12). A through hole is provided in the center of the baffle (11), and the positioning ball (13) passes through the through hole.

2. The self-aligning gear according to claim 1, characterized in that: The gear body (1) has a first groove (14) on its surface, and a connecting plate (7) is provided inside the first groove (14); the gear body (1) has a third groove (16) inside, and the diameter of the center of the third groove (16) is the same as the bottom diameter of the buckle (9).

3. The self-aligning gear according to claim 2, characterized in that: The third groove (16) has six sets of cylindrical through holes on both sides, and the diameter of the through holes is the same as the diameter of the positioning ball (13).

4. The self-aligning gear according to claim 2, characterized in that: The baffle (11) is welded inside the through hole of the third slide groove (16); a second slide groove (15) is opened on the other side of the baffle (11), and a limiting plate (10) is provided inside the second slide groove (15).

5. The self-aligning gear according to claim 4, characterized in that: The top of the buckle (9) is round, and its bottom is engaged with a positioning ball (13).

6. The self-aligning gear according to claim 5, characterized in that: The center of the pad (4) has a slot (5).

7. The self-aligning gear according to claim 4, characterized in that: The diameter of the first chute (14) is larger than that of the connecting plate (7); and the diameter of the second chute (15) is larger than that of the limiting plate (10).

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