CN116950979A - A fixing nut for the ignition mechanism - Google Patents

Abstract

The invention provides a fixing nut for an ignition mechanism, wherein the ignition mechanism includes: a starting motor, a starting clutch installed on the right side of the starting motor, an apron and a turbine shaft: an apron is installed on the right end of the starting clutch; the turbine The shaft is connected to the rotor core machine; the rotation direction of the starting motor is consistent with the rotation direction of the rotor core machine; the fixing nut is arranged on the right side of the rubber ring and contacts each other; the fixing nut is connected to the turbine shaft; the fixing nut A number of flower grooves are provided on the contact surface with the rubber ring; the flower grooves are arc-shaped; in the present invention, the rubber ring is added to the clutch head and the compressor fixing nut in front of the turbine shaft connected to the core machine rotor is Adding flower grooves increases the friction coefficient between the clutch and the core engine rotor, improving the engine starting efficiency.

Description

A fixing nut for the ignition mechanism

Technical field

The invention belongs to the field of mechanical technology, and specifically relates to a fixing nut for an ignition mechanism.

Background technique

There is a way to start a small jet engine, which is to use a starter motor with a clutch to turn the core rotor to the ignition speed. At present, the contact form between the clutch and the front end of the core rotor is dry friction or spline meshing, and there is often slippage or sliding teeth due to friction. This leads to the problem of low torque transmission efficiency.

Contents of the invention

In view of the above problems, an object of the present invention is to provide an ignition mechanism that can improve starting efficiency.

The present invention is achieved through the following technical solutions:

A fixed nut for an ignition mechanism, wherein the ignition mechanism includes: a starting motor, a starting clutch installed on the right side of the starting motor, an apron and a turbine shaft: an apron is installed on the right end of the starting clutch; the turbine shaft is connected to On the rotor core machine; the working rotation direction of the starter motor is consistent with the rotation direction of the rotor core machine (the above are all existing technologies); the fixing nut is set on the right side of the rubber ring and contacts each other; the fixing nut is connected to the turbine shaft ; A number of flower slots are provided on the contact surface between the fixing nut and the rubber ring; the flower slots are arc-shaped; the number of flower slots is determined by the width of the flower slot; in order to increase the service life of the rubber ring, the fixing nut The direction of the flower groove on the fixed nut is along the direction of the friction force; in order to improve the contact friction, the processed edge of the flower groove on the fixed nut is a sharp edge; the length of the flower groove on the fixed nut is 1.2 times the diameter of the rubber ring.

Beneficial effects of the present invention:

The invention increases the friction coefficient between the clutch and the core machine rotor by adding an apron to the clutch head and adding a flower groove to the compressor fixing nut in front of the turbine shaft connected to the core machine rotor, thereby improving the engine starting efficiency.

Description of the drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings.

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic structural diagram of the fixing nut in the present invention.

Shown in the picture: 1-starting motor; 2-starting clutch; 3-rubber ring; 4-fixing nut; 5-turbine shaft.

Detailed ways

The implementation of the present invention is described below with specific embodiments. Those familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to coordinate with the content disclosed in the specification and are for the understanding and reading of those familiar with this technology. They are not used to limit the conditions for the implementation of the present invention. Therefore, it has no technical substantive significance. Any structural modifications, changes in proportions or adjustments in size shall still fall within the scope of the invention disclosed without affecting the efficacy and purpose of the invention. Within the scope of technical content. At the same time, terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for convenience of description and are not used to limit the scope of the present invention. , changes or adjustments in their relative relationships, provided there is no substantial change in the technical content, shall also be deemed to be within the scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. Ground connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis. It should be noted that the terms "comprises," "comprises" or any other variation are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus containing a list of elements not only includes those elements, but also includes not explicitly other elements listed, or may also include elements inherent to such process, method, article or equipment.

As shown in Figures 1 and 2, a fixing nut for an ignition mechanism includes: starter motor 1, starting clutch 2, rubber ring 3, fixing nut 4, and turbine shaft 5.

The starter motor 1 is connected to the starter clutch 2 .

The turbine shaft 5 is connected to the rotor core machine; the rotation direction of the starting motor 1 is consistent with the rotation direction of the rotor core machine.

The rubber ring 3 is installed on the right end of the starting clutch 2; the rubber ring 3 is made of rubber.

The fixing nut 4 is arranged on the right side of the rubber ring 3 and contacts each other; the fixing nut 4 is connected to the turbine shaft 5; a number of flower grooves are provided on the contact surface between the fixing nut 4 and the rubber ring 3; the flowers The groove is arc-shaped; the direction of the flower groove is along the direction of friction; the processing edge of the flower groove is a sharp edge; the length of the flower groove is 1.2 times the wire diameter of the rubber ring 3; the number of the flower grooves is determined by the flower groove. The width of the groove is determined. The design density of the flower grooves should comprehensively consider the strength of the nut material. Too dense flower grooves will cause the partition wall to be too thick and too thin, resulting in deformation. Too sparse flower grooves will reduce the contact friction coefficient and fail to achieve the use effect. For example, M17 Nut, when the width of the flower trough is 0.5mm, the number of flower troughs is 64.

working principle:

When the starter motor 1 is working, the starter clutch 2 extends about 3 to 5 mm under the action of high speed and contacts the front end of the fixed nut 4 on the turbine shaft 5 connected to the core machine rotor, and drives the core machine rotor to rotate through the transmission of force; After the engine ignites and operates normally, starter motor 1 stops working and the clutch retracts.

The protection scope of the present invention is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc. made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims (6)

1. A fixing nut for an ignition mechanism, wherein the ignition mechanism includes: a starter motor (1), a starter clutch (2) installed on the right side of the starter motor (1), an apron (3) and a turbine shaft (5 ): A rubber ring (3) is installed on the right end of the starting clutch (2); the turbine shaft (5) is connected to the rotor core machine; the working rotation direction of the starting motor (1) is consistent with the rotation direction of the rotor core machine; its characteristics The fixing nut (4) is arranged on the right side of the rubber ring (3) and contacts each other; the fixing nut (4) is connected to the turbine shaft (5); the fixing nut (4) and the rubber ring (3) ) are provided with a number of flower grooves on the contact surface; the flower grooves are arc-shaped. 2. A fixing nut for an ignition mechanism according to claim 1, characterized in that: the number of said flower slots is determined by the width of the flower slots. 3. A fixing nut for an ignition mechanism according to claim 1, characterized in that: the direction of the groove on the fixing nut (4) is in the direction of frictional force. 4. A fixing nut for an ignition mechanism according to claim 1, characterized in that: the edge of the flower groove on the fixing nut (4) is a sharp edge. 5. A fixing nut for an ignition mechanism according to claim 1, characterized in that: the length of the flower groove on the fixing nut (4) is 1.2 times the wire diameter of the rubber ring (3). 6. A fixing nut for an ignition mechanism according to claim 1, characterized in that: the rubber ring (3) is made of rubber.