Sector gear

Abstract

The utility model discloses a sector gear and aims to solve the problem that resources are wasted due to the fact that the whole sector gear needs to be replaced after a rim of an existing sector gear is abraded. According to the technical scheme, the wheel comprises a hub and a rim arranged on the hub, a connecting groove and a mounting groove which are communicated with each other are formed in the surface of the hub, the end, away from the mounting groove, of the connecting groove penetrates to the outside, and a connecting block used for being clamped into the connecting groove is fixedly connected to the inner side wall of the rim; and a mounting ring used for being inserted into the mounting groove is fixedly connected to the connecting block, a limiting assembly used for limiting the mounting ring in the mounting groove is arranged in the mounting groove, and when the mounting ring is mounted in the mounting groove, the inner wall of the rim and the outer wall of the hub are attached to each other, and the connecting block and the connecting groove are attached to each other. According to the fan-shaped gear, after the wheel flange is abraded, the wheel flange can be detached for replacement, the whole fan-shaped gear does not need to be replaced, and therefore waste of resources is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gears, and more specifically, to a sector gear. Background Art

[0002] ‌The fan gear is a mechanical transmission element with the characteristics of simple structure, strong transmission capacity and long service life. It is widely used in machinery, aviation, aerospace, automobile and other fields.

[0003] The sector gear is mainly composed of several parts, such as the gear hub, rim, tooth groove, tooth root and normal plane. Among them, the rim is an important part of the sector gear, which has an arc-shaped outer contour for meshing with other gears. Therefore, compared with other parts, the rim is more prone to wear and tear, resulting in precision errors. At this time, the entire sector gear can only be replaced, resulting in a waste of resources.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a sector gear to solve the defects in the above-mentioned background technology.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a sector gear, including a hub and a rim arranged on the hub, the surface of the hub is provided with a connecting groove and a mounting groove that are mutually conductive, the end of the connecting groove away from the mounting groove penetrates to the outside, a connecting block for being inserted into the connecting groove is fixedly connected to the inner side wall of the rim, a mounting ring for being inserted into the mounting groove is fixedly connected to the connecting block, a limiting component for limiting the mounting ring in the mounting groove is provided in the mounting groove, when the mounting ring is installed in the mounting groove, the inner wall of the rim and the outer wall of the hub are in contact with each other, and the connecting block and the connecting groove are in contact with each other.

[0007] The utility model is further configured as follows: the mounting ring and the mounting groove are both configured in a rectangular shape.

[0008] The utility model is further configured as follows: the limit assembly includes a plurality of limit grooves provided on the inner wall of the mounting groove and a plurality of clamping grooves provided on the outer wall of the mounting ring; a clamping block is slidably connected in the limit groove; the clamping block is connected to the bottom of the limit groove through a spring; when the spring is in a natural state, one end of the clamping block away from the spring protrudes from the notch of the limit groove; and a control member for controlling the movement of the clamping block is provided on the wheel hub.

[0009] The utility model is further configured as follows: the control component includes a movable groove opened on the wheel hub and connected to the limiting groove, and a movable rod slidably connected to the movable groove, one end of the movable rod passes through the limiting groove and is fixedly connected to the clamping block, and the other end protrudes from the notch of the movable groove.

[0010] The utility model is further configured as follows: one end of the moving rod protruding from the notch of the moving groove is fixedly connected with a moving plate, the moving plate is fitted with the outer wall of the wheel hub and has anti-slip grooves on the surface.

[0011] The utility model is further configured as follows: a first inclined surface is provided on the top of the clamping block, and a second inclined surface is provided on the bottom of the mounting ring to fit the first inclined surface.

[0012] The utility model is further configured as follows: an extension plate is fixedly connected to the side wall of the movable plate, a locking hole is provided on the extension plate, a threaded hole is provided on the wheel hub, and the locking hole and the threaded hole are connected to each other by bolts.

[0013] In summary, the utility model has the following beneficial effects:

[0014] When the wheel rim is worn, the restriction of the limit assembly is released and the wheel rim can be removed and replaced without replacing the entire sector gear, thereby avoiding waste of resources. When the mounting ring is connected to the mounting groove, the inner wall of the wheel rim fits against the outer wall of the hub and the connecting block fits against the connecting groove, which can prevent the position of the connecting block and the wheel rim from shifting during use of the sector gear, thereby ensuring the accuracy of the sector gear when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 3 The structure of the utility model is shown in FIG. Figure 3 ;

[0018] Figure 4 Based Figure 1 A in the enlarged view;

[0019] Figure 5 Based Figure 2 The enlarged view of point B in the figure;

[0020] Figure 6 Based Figure 3 Enlarged view of point C in the figure.

[0021] In the figure: 1. wheel hub; 2. wheel rim; 3. connecting groove; 4. mounting groove; 5. connecting block; 6. mounting ring; 7. limiting groove; 8. clamping groove; 9. clamping block; 10. spring; 11. movable groove; 12. movable rod; 13. movable plate; 14. first inclined surface; 15. second inclined surface; 16. extension plate; 17. locking hole; 18. threaded hole; 19. bolt. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] A sector gear, such as Figure 1-Figure 6 As shown, it includes a wheel hub 1 and a wheel rim 2 arranged on the wheel hub 1, a connecting groove 3 and a mounting groove 4 which are in communication with each other are provided on the surface of the wheel hub 1, an end of the connecting groove 3 which is away from the mounting groove 4 penetrates to the outside, a connecting block 5 which is used to be inserted into the connecting groove 3 is fixedly connected to the inner side wall of the wheel rim 2, a mounting ring 6 which is used to be inserted into the mounting groove 4 is fixedly connected to the connecting block 5, a limiting component which is used to limit the mounting ring 6 in the mounting groove 4 is provided in the mounting groove 4, and when the mounting ring 6 is installed in the mounting groove 4, the inner wall of the wheel rim 2 and the outer wall of the wheel hub 1 are fitted together, and the connecting block 5 and the connecting groove 3 are fitted together;

[0026] Furthermore, the mounting ring 6 and the mounting groove 4 are both arranged in a rectangular shape, which can prevent the mounting ring 6 from being offset when it is installed in the mounting groove 4;

[0027] Furthermore, the limiting assembly includes a plurality of limiting grooves 7 provided on the inner wall of the mounting groove 4 and a plurality of clamping grooves 8 provided on the outer wall of the mounting ring 6. A clamping block 9 is slidably connected in the limiting groove 7. The clamping block 9 is connected to the bottom of the limiting groove 7 through a spring 10. When the spring 10 is in a natural state, one end of the clamping block 9 away from the spring 10 protrudes from the notch of the limiting groove 7. A control member for controlling the movement of the clamping block 9 is provided on the wheel hub 1. The control member is used to drive the clamping block 9 to move toward the bottom of the limiting groove 7. At this time, the spring 10 is in a contracted state. Then, the mounting ring 6 is aligned with the mounting groove 4 and the mounting ring 6 is placed in the mounting groove 4. Then, the control of the clamping block 9 by the control member is cancelled. The spring 10 returns to its original state and drives the clamping block 9 to move until the clamping block 9 is inserted into the clamping groove 8 on the outer wall of the mounting ring 6, thereby achieving the effect of fixing the mounting ring 6 in the mounting groove 4.

[0028] Furthermore, the control member includes a moving groove 11 provided on the wheel hub 1 and connected to the limiting groove 7, and a moving rod 12 slidably connected to the moving groove 11. One end of the moving rod 12 penetrates into the limiting groove 7 and is fixedly connected to the clamping block 9, and the other end protrudes from the notch of the moving groove 11. When the moving rod 12 is moved and the end protruding from the notch of the moving groove 11 is moved, since the moving rod 12 is fixedly connected to the clamping block 9 and the wheel hub 1 is provided with the moving groove 11 connected to the limiting groove 7, the clamping block 9 also moves therewith. In the process of moving the moving rod 12, the moving groove 11 can limit the moving rod 12 to prevent the moving rod 12 from being offset during the movement.

[0029] Furthermore, one end of the moving rod 12 protruding from the notch of the moving groove 11 is fixedly connected to a moving plate 13, the moving plate 13 is in contact with the outer wall of the wheel hub 1 and has anti-skid patterns on the surface. When the moving plate 13 is moved, the moving rod 12 will move together because the moving plate 13 is fixedly connected to the moving rod 12. At the same time, the moving plate 13 is provided with anti-skid patterns, which makes it easier for people to move.

[0030] Furthermore, a first inclined surface 14 is provided on the top of the clamping block 9, and a second inclined surface 15 is provided on the bottom of the mounting ring 6 to fit with the first inclined surface 14. When the mounting ring 6 is placed in the mounting groove 4, the first inclined surface 14 and the second inclined surface 15 fit with each other. At this time, if the mounting ring 6 is continuously pushed, the mounting ring 6 will force the clamping block 9 to move toward the bottom of the limiting groove 7. The clamping block 9 can be driven to move without using a control member, which is more convenient to operate.

[0031] Furthermore, the side wall of the movable plate 13 is fixedly connected with an extension plate 16, a locking hole 17 is opened on the extension plate 16, and a threaded hole 18 is opened on the wheel hub 1. The locking hole 17 and the threaded hole 18 are interconnected by bolts 19. The extension plate 16 is fixed to the wheel hub 1 by the bolts 19, so as to fix the position of the movable rod 12, thereby preventing the spring 10 from deforming during the use of the sector gear and affecting the accuracy of transmission.

[0032] The utility model is used as follows:

[0033] After the connecting block 5 on the rim 2 and the mounting ring 6 on the connecting block 5 are inserted into the connecting groove 3 and the mounting groove 4, the mounting ring 6 is restricted in the mounting groove 4 by means of a limiting assembly, so as to realize the mutual connection between the connecting block 5, the mounting ring 6 and the connecting groove 3 and the mounting groove 4. When the rim 2 is worn, the restriction of the limiting assembly is released, and the rim 2 can be removed and replaced without replacing the entire sector gear, so as to avoid waste of resources. When the mounting ring 6 is connected to the mounting groove 4, the inner wall of the rim 2 fits against the outer wall of the hub 1 and the connecting block 5 fits against the connecting groove 3, so as to avoid the position deviation of the connecting block 5 and the rim 2 during use of the sector gear, thereby ensuring the accuracy of the sector gear during use.

[0034] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A sector gear, comprising a hub (1) and a rim (2) arranged on the hub (1), characterized in that: The surface of the wheel hub (1) is provided with a connecting groove (3) and a mounting groove (4) which are in communication with each other. The end of the connecting groove (3) which is away from the mounting groove (4) penetrates to the outside. A connecting block (5) for being inserted into the connecting groove (3) is fixedly connected to the inner side wall of the wheel rim (2). A mounting ring (6) for being inserted into the mounting groove (4) is fixedly connected to the connecting block (5). A limiting component for limiting the mounting ring (6) in the mounting groove (4) is provided in the mounting groove (4). When the mounting ring (6) is installed in the mounting groove (4), the inner wall of the wheel rim (2) and the outer wall of the wheel hub (1) are in contact with each other, and the connecting block (5) and the connecting groove (3) are in contact with each other.

2. A sector gear according to claim 1, characterized in that: The mounting ring (6) and the mounting groove (4) are both arranged in a rectangular shape.

3. A sector gear according to claim 2, characterized in that: The limiting assembly comprises a plurality of limiting grooves (7) formed on the inner wall of the mounting groove (4) and a plurality of clamping grooves (8) formed on the outer wall of the mounting ring (6); a clamping block (9) is slidably connected in the limiting groove (7); the clamping block (9) is connected to the bottom of the limiting groove (7) via a spring (10); when the spring (10) is in a natural state, one end of the clamping block (9) away from the spring (10) protrudes from the notch of the limiting groove (7); and a control member for controlling the movement of the clamping block (9) is provided on the wheel hub (1).

4. A sector gear according to claim 3, characterized in that: The control member comprises a movable groove (11) formed on the wheel hub (1) and connected to the limiting groove (7), and a movable rod (12) slidably connected to the movable groove (11); one end of the movable rod (12) penetrates into the limiting groove (7) and is fixedly connected to the clamping block (9), and the other end protrudes from the notch of the movable groove (11).

5. A sector gear according to claim 4, characterized in that: One end of the moving rod (12) protruding from the notch of the moving groove (11) is fixedly connected to a moving plate (13); the moving plate (13) is in contact with the outer wall of the wheel hub (1) and has anti-slip grooves on its surface.

6. A sector gear according to claim 5, characterized in that: The top of the clamping block (9) is provided with a first inclined surface (14), and the bottom of the mounting ring (6) is provided with a second inclined surface (15) which is in contact with the first inclined surface (14).

7. A sector gear according to claim 6, characterized in that: An extension plate (16) is fixedly connected to the side wall of the movable plate (13); a locking hole (17) is provided on the extension plate (16); a threaded hole (18) is provided on the wheel hub (1); the locking hole (17) and the threaded hole (18) are connected to each other via a bolt (19).

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