Small shaft locking bevel gear

Abstract

The utility model discloses a small shaft locking bevel gear, and belongs to the technical field of bevel gears. The bevel gear comprises a bevel gear head and a gear shaft seat which are integrally formed, a tensioning shaft hole is formed in the center of the gear shaft seat, and a tensioning deformation groove is formed in the tensioning face of the inner wall of the gear shaft seat and matched with a shaft locking screw to achieve double locking of a rotating shaft. A buffering angle groove is formed in the other side of the tensioning shaft hole, and a C-shaped deformation groove is formed in the connecting position of the gear shaft seat and the bevel gear head and used for relieving installation stress. Through the synergistic effect of the integrated structure, the elastic deformation groove and the screw locking, while the miniaturization design is ensured, the rotating shaft is quickly assembled, disassembled and reliably fixed, and the rotating shaft is suitable for small-sized transmission equipment with higher requirements on space and efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bevel gear technical field, especially relate to a small -size axle locking bevel gear. BACKGROUND

[0002] Bevel gear is a kind of gear for the intersection shaft transmission, the included angle between two shafts is usually 90 °, it can also be less than 90 °, compared with cylindrical gear, bevel gear can change transmission direction.However, the connecting structure of traditional bevel gear and shaft often relies on complex auxiliary components, such as bearing, multilayer shaft sleeve etc., resulting in overall structure is bloated, when disassembling, need to disassemble multiple parts one by one, low efficiency.In addition, small -size equipment requires high space utilization, and traditional structure is difficult to meet the needs of compactification and high efficiency, so an urgent need for a small -size device designed, can realize the quick shaft locking and the bevel gear of simple structure. CONTENT OF UTILITY MODEL

[0003] The utility model aims at the above -mentioned problems existing in prior art, provide a small -size axle locking bevel gear.

[0004] The utility model discloses a small -size axle locking bevel gear, including bevel gear head and gear shaft seat, bevel gear head and gear shaft seat are integrated design;

[0005] The gear shaft seat center is provided with the expansion shaft hole that penetrates to bevel gear head, and the expansion shaft hole one side inner wall forms the expansion face, is equipped with expansion deformation groove on expansion face, and expansion deformation groove is used to produce deformation to clamp the rotating shaft when the axle is inserted;

[0006] The gear shaft seat is also provided with screw groove and screw hole, and the shaft locking screw is matched with the gear shaft seat through the screw groove and the screw hole, and the shaft locking screw can make the gear shaft seat further hold the shaft by screwing, so that the locking of the shaft is realized.

[0007] In the above-mentioned small -size axle locking bevel gear, the inner wall of the expansion shaft hole is provided with the buffer angle groove opposite the expansion deformation groove for relieving the stress generated by deformation.

[0008] In the above-mentioned small -size axle locking bevel gear, the gear shaft seat is provided with C-shaped deformation groove at the connecting place with bevel gear head, for assisting the gear shaft seat to produce certain deformation when the rotating shaft is inserted into the expansion shaft hole.

[0009] Compared with the prior art, the small shaft locking bevel gear provided by this utility model has a compact structure and is suitable for the transmission needs of small equipment. Through the cooperation of the tensioning surface of the gear shaft seat, the tensioning deformation groove and the shaft locking screw, the shaft can be quickly tensioned, locked and unlocked without too many auxiliary parts, which improves the installation and disassembly efficiency. The buffer corner groove and C-shaped deformation groove can effectively relieve the stress generated when the shaft is inserted and extend the service life of the bevel gear. Attached Figure Description

[0010] Fig. 1 This is a schematic diagram of the front and side structure of this small shaft-locking bevel gear;

[0011] Fig. 2 This is an exploded view of the rear structure of this small shaft-locking bevel gear;

[0012] Fig. 3 This is a schematic diagram of the rear structure of this small shaft-locking bevel gear;

[0013] In the above figure, 100 is the bevel gear head; 200 is the gear shaft seat; 210 is the tensioning shaft hole; 211 is the tensioning surface; 212 is the tensioning deformation groove; 213 is the buffer angle groove; 220 is the C-shaped deformation groove; 230 is the screw groove; 231 is the screw hole; and 240 is the shaft locking screw. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figs. 1 to 3 As shown, this small shaft-locking bevel gear includes an integrally formed bevel gear head 100 and a gear shaft seat 200. The bevel gear head 100 has a bevel gear structure, and its tooth surface is used for meshing and transmission with another bevel gear. The gear shaft seat 200 and the bevel gear head 100 are integrated into a single structure by casting or machining, which reduces the number of assembly parts and improves the overall rigidity and compactness.

[0016] The gear shaft seat 200 has a tensioning shaft hole 210 extending through to the bevel gear head 100 for inserting a rotating shaft. One inner wall of the tensioning shaft hole 210 is a planar tensioning surface 211, on which an axial tensioning deformation groove 212 is formed. When the rotating shaft is inserted into the tensioning shaft hole 210, the tensioning deformation groove 212 deforms under pressure, causing the tensioning surface 211 to shift towards the rotating shaft, forming an initial clamping force. On the other side of the inner wall of the tensioning shaft hole 210 opposite to the tensioning deformation groove 212, a buffer corner groove 213 is formed to disperse deformation stress and prevent the gear shaft seat 200 from cracking due to localized stress concentration.

[0017] The outer side wall of the gear shaft seat 200 is provided with a screw groove 230, and the bottom of the screw groove 230 is provided with a screw hole 231 penetrating to the tensioning shaft hole 210. The shaft locking screw 240 is screwed through the screw hole 231, and the end abuts against the surface of the rotating shaft. When the shaft locking screw 240 is screwed, the screw end pushes the rotating shaft to move to the direction of the tensioning surface 211, further compresses the tensioning deformation groove 212, enhances the holding force of the rotating shaft, and realizes double locking.

[0018] Further, the connection part of the gear shaft seat 200 and the bevel gear head 100 is provided with a C-shaped deformation groove 220 in the circumferential direction. When the rotating shaft is inserted into the tensioning shaft hole 210 or the shaft locking screw 240 is screwed, the C-shaped deformation groove 220 allows the gear shaft seat 200 to slightly elastically deform, assists the clamping action of the tensioning deformation groove 212, and avoids the difficulty in installation caused by the excessive rigidity of the overall structure.

[0019] The installation and disassembly process of the utility model is as follows:

[0020] 1. Installing the rotating shaft: the rotating shaft is inserted into the tensioning shaft hole 210 from the rear end of the gear shaft seat 200, and the initial clamping force is generated by the extrusion of the tensioning surface 211 and the deformation of the tensioning deformation groove 212;

[0021] 2. Locking the rotating shaft: the shaft locking screws 240 on both sides are screwed, the screw end pushes the rotating shaft to tightly contact the tensioning surface 211, the tensioning deformation groove 212 is further compressed, and stable locking is formed;

[0022] 3. Disassembling the rotating shaft: the shaft locking screw 240 is loosened, the clamping force of the rotating shaft is released, and the rotating shaft can be easily pulled out.

[0023] The specific embodiments described in the present document are only illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

[0024] Although various terms are used frequently in the present document, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the utility model; any kind of additional limitation by interpreting them is contrary to the spirit of the utility model.

Claims

1. A small shaft-locking bevel gear, comprising a bevel gear head (100) and a gear shaft seat (200), characterized in that, The bevel gear head (100) and the gear shaft seat (200) are integrated into one unit; The gear shaft seat (200) has a tensioning shaft hole (210) that extends through to the bevel gear head (100) at its center. A tensioning surface (211) is formed on one inner wall of the tensioning shaft hole (210). A tensioning deformation groove (212) is provided on the tensioning surface (211). The tensioning deformation groove (212) is used to generate deformation when the shaft is inserted to clamp the rotating shaft. The gear shaft seat (200) is also provided with a screw groove (230) and a screw hole (231). The shaft locking screw (240) cooperates with the gear shaft seat (200) through the screw groove (230) and the screw hole (231). By tightening the shaft locking screw (240), the gear shaft seat (200) can further tighten the shaft, thereby achieving shaft locking.

2. A small shaft-locking bevel gear according to claim 1, characterized in that, A buffer corner groove (213) is provided on the inner wall of the tensioning shaft hole (210) on the side opposite to the tensioning deformation groove (212) to relieve the stress generated by deformation.

3. A small shaft-locking bevel gear according to claim 1, characterized in that, The gear shaft seat (200) has a C-shaped deformation groove (220) at the connection with the bevel gear head (100), which is used to assist the gear shaft seat (200) in generating a certain deformation when the rotating shaft is inserted into the tensioning shaft hole (210).

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