Self-assembled gear

Abstract

The utility model belongs to the technical field of mechanical transmission parts, and particularly relates to a self-assembled gear which comprises a center shaft device and a plurality of fan-shaped gear tooth pieces, the gear tooth pieces can be assembled into a complete disc shape, fixing grooves are formed in the gear tooth pieces, the fixing grooves penetrate through the inner arc-shaped side faces and the straight faces on the two sides of the gear tooth pieces, and the center shaft device is arranged on the center shaft device. All the fixing grooves are clamped and spliced with the center shaft device to form the whole gear, and through the structural arrangement, the model size of the gear can be rapidly changed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical transmission part technical field especially, it relates to a self -assembly gear. BACKGROUND

[0002] Gears play a central role in the transmission of torque and torque conversion in the drive train. For spur gears, in many cases, the so-called spur gears are designed, the axial load of the spur gears is relatively low, and especially for helical spur gears and worm or screw gears, the axial load is high, because an inclined torque is introduced into the gear. However, the axial load must not lead to a deformation of the gear, otherwise incorrect meshing will result and noise and increased wear will be increased. Although the deformation can be compensated by increasing the width of the gear, the associated increased material usage leads to an increased weight and an increased required installation space, which is often undesirable. A spoke design can limit the increase in weight. Furthermore, the gear can be made of a variety of materials in order to keep the weight low. Therefore, it is known to increase the axial stiffness by using ribs. Thus, the material is only used where an increased axial stiffness is required. The known gear ribs have a parabolic bottom face, also referred to as a tree root bottom face. In this rib design, the shear force bending stress curve in the individual rib is taken into account. The ribs can widen towards the center point of the gear, which both reduces the torsional force and the axial deflection when a force is exerted through the gear rim, while the gear size in the prior art is fixed, and different signal gears are selected according to the assembly requirements, and there is a technical problem of single adaptability in assembly. SUMMARY

[0003] The utility model discloses a self -assembly gear, it aims at solving the technical problem of single adaptability of gear in prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model discloses a self -assembly gear, including the axle device and a plurality of fan shape's gear piece, each gear piece can be assembled to complete disc -shaped, and be provided with fixed groove on the gear piece, the fixed groove penetrates the inner arc side and both sides straight surface of gear piece, each fixed groove all with the axle device card joint split and form gear whole.

[0005] Preferably, the axle device includes the mounting column and the fixed disc, the mounting column passes through the center of the fixed disc and is arranged, and the central axis of the mounting shaft coincides with the central axis of the fixed disc, the mounting column is provided with the assembly hole penetrating the mounting column, and the fixed groove is fixedly connected with the fixed disc.

[0006] Preferably, the fixed disc is provided with a plurality of locking holes, each locking hole is arranged close to the outer ring edge of the fixed disc, and each gear piece is locked and connected with each locking hole.

[0007] Preferably, screw holes are arranged on the two fan-shaped sides of the gear teeth, both of which are communicated with the fixing groove, and each of which is communicated with both ends of the locking hole.

[0008] Preferably, a plurality of first positioning convex teeth are arranged on the outer circumferential side of the fixing disc at intervals, and each of the first positioning convex teeth is clamped with each of the fixing grooves.

[0009] Preferably, a plurality of first limiting holes are arranged on the inner bottom plane of the fixing groove, and each of the first positioning convex teeth is clamped with each of the first limiting holes.

[0010] Preferably, a second positioning convex tooth and a second limiting hole are arranged on the two side straight surfaces of the gear teeth respectively, and the two opposite second positioning convex teeth and the second limiting holes on the upper surfaces of the two adjacent gear teeth are clamped with each other.

[0011] The self-assembled gear provided in the embodiment of the present application has at least one of the following technical effects:

[0012] The self-assembled gear in the present application is assembled by a central shaft device and a plurality of fan-shaped gear teeth, wherein it is worth noting that the gear teeth with the same shape can be assembled to form a complete gear disc, a fixing groove is arranged on the side surface of each gear tooth during machining, the fixing groove is located at the inner arc-shaped side surface position of the fan-shaped gear tooth, and the two ends of the fixing groove penetrate the two side straight surfaces of the gear tooth, during assembly, each gear tooth is clamped on the central shaft device through the fixing groove to form a complete gear, and during use, only the gear type needs to be changed by replacing the enclosed gear teeth, and through the above structure, the gear type can be changed by replacing the components. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0014] Fig. 1 The structure diagram of the self-assembled gear provided in the embodiment of the present application.

[0015] Fig. 2 The cross-sectional view of the gear tooth of the self-assembled gear provided in the embodiment of the present application.

[0016] In the drawings, various reference signs represent:

[0017] 10—central shaft device 11—mounting column 12—fixing disc

[0018] 20—Gear tooth component; 21—Fixing groove; 22—Screw hole

[0019] 23—First limiting hole; 24—Second positioning protrusion; 25—Second limiting hole

[0020] 121—Locking hole; 122—First positioning protrusion. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below, with examples of the embodiments shown in the appendix. Figs. 1-2 As shown, the same or similar reference numerals throughout denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0022] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] In one embodiment of this utility model, such as Figs. 1-2As shown, provide a self-assembly gear, including the central shaft device 10 and a plurality of fan-shaped gear pieces 20, each gear piece 20 can be assembled into a complete disc, and the gear piece 20 is provided with a fixed groove 21, the fixed groove 21 penetrates the inner arc side and the two sides of the straight surface of the gear piece 20, each fixed groove 21 is connected with the central shaft device 10 to form a gear whole.

[0026] The self-assembly gear in the utility model is assembled by the central shaft device 10 and a plurality of fan-shaped gear pieces 20, wherein it needs to be noted that the same shape of each gear piece 20 can be assembled to form a complete gear disc, a fixed groove 21 is formed in the side surface of each gear piece 20 during processing, the fixed groove 21 is located at the inner arc side of the fan-shaped gear piece 20, and the two ends of the fixed groove 21 penetrate the two sides of the straight surface of the gear piece 20; during assembly, each gear piece 20 is clamped on the central shaft device 10 through the fixed groove 21 to form a complete gear, and only the gear type needs to be changed by replacing the enclosed gear piece 20 during use, and the gear type can be changed by replacing the component according to the above structure.

[0027] In another embodiment of the utility model, as shown in Figs. 1-2 The central shaft device 10 includes a mounting column 11 and a fixed disc 12, the mounting column 11 is arranged through the center of the fixed disc 12, and the central axis of the mounting column 11 coincides with the central axis of the fixed disc 12; the mounting column 11 is provided with an assembly hole penetrating the mounting column 11 in the middle; the fixed groove 21 is fixedly connected with the fixed disc 12, and the connection between the central shaft device 10 and each gear piece 20 is realized through the fixed disc 12.

[0028] In another embodiment of the utility model, as shown in Figs. 1-2 The fixed disc 12 is provided with a plurality of locking holes 121, each locking hole 121 is arranged close to the outer ring edge of the fixed disc 12, each gear piece is locked and connected with each locking hole 121, the locking hole 121 locks each gear piece 20, and the stability of gear operation is ensured.

[0029] In another embodiment of the utility model, as shown in Figs. 1-2 The two fan-shaped side surfaces of the gear piece 20 are provided with screw holes 22, the two screw holes 22 are communicated with the fixed groove 21, and each screw hole 22 is communicated with the two ends of a locking hole 121; the screw hole 22 cooperates with the locking hole 121 to lock each gear piece 20.

[0030] In another embodiment of the utility model, as shown in Figs. 1-2 The outer circular side surface of the fixed disc 12 is provided with a plurality of first positioning convex teeth 122 at intervals, each first positioning convex tooth 122 is clamped with each fixed groove 21, and the connection stability between the fixed disc 12 and the gear piece 20 is stable.

[0031] In another embodiment of the present application, as shown in Figs. 1-2 The inner bottom plane of the fixed groove 21 is provided with a plurality of first limiting holes 23, and each first positioning tooth 122 is respectively connected with each first limiting hole 23. The first positioning tooth 122 and the first limiting hole 23 are connected to avoid displacement of the gear piece 20.

[0032] In another embodiment of the present application, as shown in Figs. 1-2 The two side straight surfaces of the gear piece 20 are respectively provided with a second positioning tooth 24 and a second limiting hole 25. The two opposite second positioning teeth 24 and the second limiting holes 25 on the upper surfaces of the two adjacent gear pieces 20 are connected with each other. The second positioning tooth 24 and the second limiting hole 25 improve the connection stability between the two adjacent gear pieces 20.

[0033] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A self-assembly gear, characterized by: The utility model provides a kind of gear wheel, including central shaft device and several fan-shaped gear pieces, each gear piece can be assembled into complete disc, and fixed slot is provided on the gear piece, the fixed slot penetrates the inner arc side and both sides straight surface of the gear piece, each fixed slot is split into gear whole with the central shaft device clamping; The central shaft device includes mounting column and fixed disc, the mounting column is arranged through the center of the fixed disc, and the central axis of the mounting column coincides with the central axis of the fixed disc, the mounting column is provided with assembly hole penetrating the mounting column in the middle, the fixed slot is fixedly connected with the fixed disc; The outer side of the fixed disc is provided with a plurality of first positioning convex teeth at intervals, each first positioning convex tooth is respectively clamped with each fixed slot; The inner bottom plane of the fixed slot is provided with a plurality of first limiting holes, each first positioning convex tooth is respectively clamped with each first limiting hole.

2. The self-assembly gear according to claim 1, wherein: The fixed disc is provided with a plurality of locking holes, each locking hole is arranged close to the outer ring edge of the fixed disc, each gear piece is respectively locked with each locking hole.

3. The self-assembly gear according to claim 2, wherein: The two fan-shaped side surfaces of the gear piece are respectively provided with screw holes, and the two screw holes are communicated with the fixed slot.

4. The self-assembly gear according to claim 1, wherein: The two side straight surfaces of the gear piece are respectively provided with second positioning convex teeth and second limiting holes, and the two opposite second positioning convex teeth and second limiting holes on the upper surfaces of the two adjacent gear pieces are clamped with each other.

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