CN217328199U

CN217328199U - Starting motor clutch of micro turbojet engine

Info

Publication number: CN217328199U
Application number: CN202220676907.XU
Authority: CN
Inventors: 李银龙; 樊未军; 王孝慧
Original assignee: Beijing Hangyuan Zhongcheng Power Technology Co ltd; Datong Hangyuan Zhongcheng Power Technology Co ltd
Current assignee: Beijing Hangyuan Zhongcheng Power Technology Co ltd; Datong Hangyuan Zhongcheng Power Technology Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-08-30
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses a miniature turbojet engine starter motor clutch relates to clutch technical field, the utility model discloses a clutch main part, clutch main part includes lock nut, the elasticity collet chuck, rotating member and fastener, lock nut's inside is equipped with the elasticity collet chuck, lock nut's bottom is equipped with the rotating member, lock nut's inside is located the outer peripheral face of elasticity collet chuck and is equipped with the fastener, first swivelling chute and second swivelling chute have been seted up respectively to the both sides of rotating member, first swivelling chute is equipped with first pin and second pin respectively with the inside of second swivelling chute, first pin is equipped with first magnet and the second magnet that resets respectively with the one end of second pin. The utility model relates to a miniature turbojet engine starter motor clutch through the first magnet and the second magnet that resets that set up, makes the clutch stabilize fastly that resets, and the elasticity collet chuck makes the dismouting of clutch simple and convenient, avoids changing the clutch and causes the damage, makes the start-up of miniature turbojet engine more stable.

Description

Starting motor clutch of micro turbojet engine

Technical Field

The utility model relates to a clutch technical field, in particular to miniature turbojet engine starter motor clutch.

Background

In recent years, the development of small aircraft has promoted the development process of micro turbojet engines. At present, the micro turbojet engine is mainly used for aircrafts such as unmanned planes, target planes, missiles and the like. The miniature turbojet engine drives the rotor of the engine by starting a clutch on a motor, so that the self-sustained rotating speed of the rotor of the engine is achieved. The clutch comprises a clutch body, a shaft sleeve, a return spring and a rubber ring, wherein a conical sunken groove is formed in the clutch body and used for placing the rubber ring, the return spring is used for placing the front end of a stepped through hole, the shaft sleeve is sleeved in the through hole, a through hole matched with a wedge block is formed in the shaft sleeve, the rubber ring is arranged above the return spring in the conical sunken groove of the clutch body, and the shaft sleeve, the wedge block and the return spring are sealed. The utility model has the advantages of simple structure, small volume and better safety and reliability.

The patent (200910189973.3) discloses a "turbojet engine clutch", including clutch body, axle sleeve, return spring, rubber ring, this internal ladder through-hole, wedge of being equipped with of clutch, the one end of clutch body is equipped with the toper heavy groove for the holding rubber ring, return spring set up in the front end of ladder through-hole, in this through-hole was arranged in to the axle sleeve cover, be equipped with on the axle sleeve with wedge matched with through-hole to set up the rubber ring in the toper heavy groove of clutch body in return spring's top, including axle sleeve, wedge, return spring seal. In the patent (201720048349.1), a "micro turbojet engine clutch" is disclosed comprising: the clutch wheel is a through body, and a driving groove is formed in the outer side of the clutch wheel; the shaft sleeve is arranged in the clutch wheel along the axial direction; the driving piece penetrates through the shaft sleeve and the clutch wheel and is clamped in the driving groove; the reset spring is sleeved on the outer side of the shaft sleeve.

In the existing clutch in the market, after a reset spring is used for many times, the elasticity is weakened, so that the clutch cannot drive an engine to rotate; after the clutch is damaged, the starting motor is easy to damage when the clutch is disassembled, so that the clutch for the starting motor of the micro turbojet engine is needed to be provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a clutch for a starting motor of a micro turbojet engine, which can effectively solve the problem that the elasticity of the existing clutch in the background technology is weakened after a reset spring is used for many times, so that the clutch can not drive the engine to rotate; after the clutch is damaged, the starting motor is easy to damage when the clutch is disassembled.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the clutch comprises a clutch body, wherein the clutch body comprises a locking nut, an elastic collet chuck, a rotating piece and a fastener, the elastic collet chuck is arranged inside the locking nut, the rotating piece is movably arranged at the bottom of the locking nut, the fastener is arranged on the outer peripheral face, located on the elastic collet chuck, of the inside of the locking nut, a first rotating groove and a second rotating groove are formed in the two sides of the rotating piece respectively, a first pin and a second pin are arranged inside the first rotating groove and the second rotating groove respectively, and a first reset magnet and a second reset magnet are arranged at one end of the first pin and one end of the second pin respectively.

Preferably, the elastic collet chuck is a cylinder with two conical ends, a through hole is formed in the top of the elastic collet chuck, and the through hole is axially arranged along the axial center of the elastic collet chuck.

Preferably, a limiting groove is formed in the upper position of the outer surface of the elastic collet chuck, and the limiting groove is an annular groove.

Preferably, elastic grooves are formed in the top and the outer side of the elastic collet chuck and communicated with each other, the elastic grooves are located on the outer side of the elastic collet chuck and arranged in the vertical direction.

Preferably, the upper end of the inner wall of the locking nut is fixedly connected with a limiting step, the top of the locking nut is penetrated and provided with a conical hole, the limiting step is located above the inner wall of the conical hole, and threads are arranged below the inner wall of the locking nut, which is located below the limiting step.

Preferably, the fastener is the cylinder structure, the tapered slot has been seted up at the top of fastener, the fastener passes through the screw thread and is connected with lock nut, the cotter hole has all been seted up to the both sides of fastener, first pin and second pin set up respectively in the inside in cotter hole.

Preferably, the cross section size of the tapered groove is matched with the cross section size of the bottom of the elastic collet chuck, and the cross section size of the limiting step is matched with the cross section size of the limiting groove.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, through increasing first reset magnet and second reset magnet, make the rotating member can resume initial position after the external force disappears, the problem that current clutch resets unstably and the speed of resetting is slow has been solved, the collet chuck makes the installation of clutch more convenient with the dismantlement, make starter motor under the condition of damage, when needing to be changed the clutch, avoid starter motor to cause the damage, the cost is reduced, when the collet chuck can also make starter motor rotatory, it is compacter with the cooperation of clutch, the problem that the clutch skidded has been prevented, make the start reliability of miniature turbojet engine obtain improving.

Drawings

Fig. 1 is a schematic perspective view of a starting motor clutch of a micro turbojet engine according to the present invention;

FIG. 2 is a schematic view of a front view internal cross-section structure of a starting motor clutch of the micro turbojet engine of the present invention;

FIG. 3 is an exploded view of the starting motor clutch of the micro turbojet engine according to the present invention;

fig. 4 is the enlarged schematic structural diagram of a position a in fig. 2 of the starting motor clutch of the micro turbojet engine of the present invention.

In the figure: 1. locking the nut; 2. an elastic collet; 3. a rotating member; 4. a fastener; 5. a first pin; 6. a second pin; 7. a first reset magnet; 8. a second reset magnet; 9. a first rotary tank; 10. a second rotary tank; 11. a through hole; 12. a limiting groove; 13. an elastic groove; 14. a limiting step; 15. a tapered hole; 16. a thread; 17. and (4) a tapered groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1-4, the utility model relates to a miniature turbojet engine starter motor clutch, including the clutch main part, the clutch main part includes lock nut 1, elastic collet chuck 2, rotating member 3 and fastener 4, lock nut 1's inside is provided with elastic collet chuck 2, lock nut 1's bottom activity is provided with rotating member 3, lock nut 1's inside is located elastic collet chuck 2's outer peripheral face and is equipped with fastener 4, first swivelling chute 9 and second swivelling chute 10 have been seted up respectively to the both sides of rotating member 3, first swivelling chute 9 is equipped with first pin 5 and second pin 6 respectively with the inside of second swivelling chute 10, the one end of first pin 5 and second pin 6 is equipped with first magnet 7 that resets and second magnet 8 that resets respectively.

The elastic collet chuck 2 is a cylinder with two conical ends, a through hole 11 is formed in the top of the elastic collet chuck 2, and the through hole 11 is axially arranged along the axial center of the elastic collet chuck 2.

The outer surface of the elastic collet 2 is provided with a limiting groove 12 at the upper part, and the limiting groove 12 is an annular groove.

Elastic grooves 13 are formed in the top and the outer side of the elastic collet chuck 2, the elastic grooves 13 are communicated with each other, the elastic grooves 13 are located in the outer side of the elastic collet chuck 2, and the elastic grooves 13 are arranged in the vertical direction.

The upper end of the inner wall of the locking nut 1 is fixedly connected with a limiting step 14, the top of the locking nut 1 is penetrated through to be provided with a conical hole 15, the limiting step 14 is positioned above the inner wall of the conical hole 15, and threads 16 are arranged below the inner wall of the locking nut 1 which is positioned on the limiting step 14.

Fastener 4 is the cylinder structure, and tapered groove 17 has been seted up at the top of fastener 4, and fastener 4 is connected with lock nut 1 through screw thread 16, and the cotter hole has all been seted up to fastener 4's both sides, and first pin 5 and second pin 6 set up respectively in the inside in cotter hole.

The cross section size of the tapered groove 17 is matched with the cross section size of the bottom of the elastic collet chuck 2, the cross section size of the limiting step 14 is matched with the cross section size of the limiting groove 12, the tapered groove 17 is used for fixing the elastic collet chuck 2, and the limiting effect on the elastic collet chuck 2 is achieved through the limiting groove 12 and the limiting step 14.

The utility model discloses a theory of operation does: when the device is used, firstly, the device is installed, the rotating piece 3 and the locknut 1 are fixed through the threads 16, the fastening piece 4 penetrates through the through hole 11 in the rotating piece 3, the first reset magnet 7 and the second reset magnet 8 are respectively fixed on the first pin 5 and the second rotary groove 10, the first reset magnet 7 and the second reset magnet 8 are also fixed on the second pin 6 and the first rotary groove 9, and then the first pin 5 and the second pin 6 penetrate through the first rotary groove 9 and the second rotary groove 10 in the rotating piece 3 and are inserted into the pin hole of the fastening piece 4. After the starting motor is started, the centrifugal force is larger than the attractive force between the first reset magnet 7 and the second reset magnet 8, and the rotating piece 3 extends outwards along the first rotating groove 9 and the second rotating groove 10 to drive the rotor of the micro turbojet engine to rotate. When the centrifugal force disappears after the starter motor is stopped, the rotary member 3 is reset along the first rotary groove 9 and the second rotary groove 10 by the attractive force between the first reset magnet 7 and the second reset magnet 8.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a miniature turbojet engine starter motor clutch which characterized in that: the clutch comprises a clutch body, wherein the clutch body comprises a locking nut (1), an elastic collet chuck (2), a rotating piece (3) and a fastener (4), the elastic collet chuck (2) is arranged inside the locking nut (1), the rotating piece (3) is movably arranged at the bottom of the locking nut (1), the fastener (4) is arranged on the outer peripheral face, located on the elastic collet chuck (2), inside the locking nut (1), a first rotating groove (9) and a second rotating groove (10) are respectively formed in two sides of the rotating piece (3), a first pin (5) and a second pin (6) are respectively arranged inside the first rotating groove (9) and the second rotating groove (10), and a first reset magnet (7) and a second reset magnet (8) are respectively arranged at one end of the first pin (5) and one end of the second pin (6).

2. The micro turbojet engine starter motor clutch of claim 1, characterized in that: the elastic collet chuck (2) is a cylinder with two conical ends, a through hole (11) is formed in the top of the elastic collet chuck (2), and the through hole (11) is axially arranged along the axial center of the elastic collet chuck (2).

3. The micro turbojet engine starter motor clutch of claim 1, characterized in that: the outer surface of the elastic collet chuck (2) is provided with a limiting groove (12) at the upper part, and the limiting groove (12) is an annular groove.

4. The micro turbojet engine starter motor clutch of claim 3, characterized in that: elastic grooves (13) are formed in the top and the outer side of the elastic collet chuck (2), the elastic grooves (13) are communicated with each other, the elastic grooves (13) are located on the outer side of the elastic collet chuck (2), and the elastic grooves (13) are arranged in the vertical direction.

5. The micro turbojet engine starter motor clutch of claim 4, wherein: the inner wall upper end fixedly connected with of lock nut (1) spacing step (14), the top of lock nut (1) is run through and has been seted up bell mouth (15), spacing step (14) are located the inner wall top of bell mouth (15), the below that the inner wall of lock nut (1) is located spacing step (14) is provided with screw thread (16).

6. The micro turbojet engine starter motor clutch of claim 5, wherein: fastener (4) are the cylinder structure, tapered groove (17) have been seted up at the top of fastener (4), fastener (4) are connected with lock nut (1) through screw thread (16), the cotter hole has all been seted up to the both sides of fastener (4), first pin (5) and second pin (6) set up respectively in the inside in cotter hole.

7. The micro turbojet engine starter motor clutch of claim 6, wherein: the cross section size of the tapered groove (17) is matched with the cross section size of the bottom of the elastic collet chuck (2), and the cross section size of the limiting step (14) is matched with the cross section size of the limiting groove (12).