CN1100217C

CN1100217C - Flexible axle for transferring rotary movement

Info

Publication number: CN1100217C
Application number: CN 00122991
Authority: CN
Inventors: 程熙昆
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-12
Filing date: 2000-09-12
Publication date: 2003-01-29
Anticipated expiration: 2020-09-12
Also published as: CN1342844A

Abstract

The present invention discloses a flexible shaft used for transferring a rotary movement. Both the left joint (2) and the right joint (3) at both ends of a steel cable (1) as a mandrel are provided with connecting rods (4), (8) with an inner cavity, and both the inner cavity walls of the ends of the connecting rods (4), (8) are provided with a clamping table; the steel cable (1) is inserted into the inner cavities of the connecting rods (2), (3), and zinc layers (6), (7) formed by the perfusion of melting are respectively filled in the clearance between the inner cavities walls; steel core circular shafts (5), (9) are respectively arranged in the central inner cavities of both ends of the steel cable (1). The flexible shaft has the advantages of strong tensile and torsional strength, simple structure, easy manufacture and low price, and the flexible shaft is not apt to generate fatigue breakdown and is the flexible shaft which is suitable to use and is convenient to popularize.

Description

A kind of flexible axle that is used for transferring rotational motion

The invention belongs to a kind of flexible axle, be specially a kind of flexible axle that is used for transferring rotational motion.

Mechanism that rotates or parts in machinery and mechanical device, as required, what have is often doing also to be attended by the rotation or the swing of disalignment in the rotatablely moving of axle center, and just can not use the hard passing shaft this moment, must the use flexible axle.Flexible axle as transferring rotational motion, because the one end is connected with coupling in motor or the power plant, the other end is connected with the parts that rotatablely move, requirement to its mechanical characteristic is: one requires it that enough twisting strengths are arranged, so that will pass to the parts of coupled rotation from the moment of torsion of motor; The 2nd, it has enough tensile strength requirement; The 3rd, it has enough stiffnesses requirement; The 4th, it is difficult for producing fatigue ruption requirement.

In the at present existing flexible axle, the tension twisting strength that has is low, because the tension axle core in the flexible axle only is an one metal wire; Though the flexible axle tension twisting strength that has can meet the demands, and easily produce fatigue ruption, thereby it is shorter to make it working life; Though the flexible axle that has can meet the demands, complex structure, preparation process is loaded down with trivial details, and price is higher, has therefore limited its popularization and use.

The purpose of this invention is to provide a kind of flexible axle that is used for transferring rotational motion, this flexible axle not only has tension twisting strength preferably, and has stronger antifatigue destructiveness, therefore can satisfy usage requirement, long service life; In addition, this flexible axle is simple in structure, is easy to make, and cost is low.

To achieve these goals, the present invention is a kind of improvement to existing flexible axle, promptly as two joints at the two ends, the left and right sides of the wire rope of flexible axle mandrel, all are the connecting rods that have by axial centre inner chamber that circular hole forms, all be equipped with the Ka Tai that forms by the annular groove that is arranged in order on the internal chamber wall of two connecting rod ends, insert in the inner chamber of two connecting rods at the two ends of wire rope, in the gap between wire rope and the two connecting rod internal chamber walls, be equipped with the zinc layer of the zinc cooling back formation of perfusion fusion, all be equipped with the steel core axle in the axial centre inner chamber of that section wire rope in the insertion connecting rod inner chamber.

The present invention has stronger tensile strength and twisting strength, and has antifatigue destructiveness preferably, is difficult for producing fatigability in the use and destroys.Through the actual use on Pipe grinding machine, the service time of this flexible axle is approaching or surpassed existing better performances but the service time of baroque flexible axle, and the price of this flexible axle only is 1/7 of latter's price.Because this flexible axle is simple in structure, be easy to make again, be convenient to implement, use and promote.

Below in conjunction with accompanying drawing the present invention is explained

Fig. 1: plan view of the present invention

Fig. 2: structural representation of the present invention

Fig. 3: left joint schematic representation

Fig. 4: right connector schematic representation

Fig. 5: A-A is to amplifying cross-sectional schematic among Fig. 1

Fig. 6: B-B is to amplifying cross-sectional schematic among Fig. 1

Fig. 7: C-C is to sectional view among Fig. 1

Fig. 8: D-D is to sectional view among Fig. 1

Fig. 9: E-E is to sectional view among Fig. 1

Figure 10: the flexible axle transmission device schematic representation that the present invention and sleeve pipe are formed

The present invention is by forming as the left joint 2 at the wire rope 1 of flexible axle mandrel and wire rope 1 two ends and right connector 3, left side joint 2 is the connecting rods 4 that have on it by axial centre inner chamber that circular hole forms, be equipped with the card platform 10 that forms by the annular recess that is arranged in order its bottom angled on the internal chamber wall of connecting rod 4 ends, wire rope 1 inserts in the inner chamber of connecting rod 4, in the gap between wire rope 1 and connecting rod 4 internal chamber walls, be equipped with the zinc layer 6 of the zinc cooling back formation of perfusion fusion, be equipped with steel core circular shaft 5 in the inner chamber of the axial centre circular hole of that section wire rope 1 in insertion connecting rod 4 inner chambers, outside with that section bar of card platform 10, divide three sections to push with the machine of withholding, make it card platform 10 and zinc layer 6, wire rope 1 is crimped on together securely; Right connector 3 is the connecting rods 8 that have on it by axial centre inner chamber that circular hole forms, be equipped with the card platform 11 that forms by the annular recess that is arranged in order its bottom angled on the internal chamber wall of connecting rod 8 ends, wire rope 1 inserts in the inner chamber of connecting rod 8, in the gap between wire rope 1 and connecting rod 8 internal chamber walls, be equipped with the zinc layer 7 of the zinc cooling back formation of perfusion fusion, be equipped with steel core circular shaft 9 in the inner chamber of the axial centre circular hole of that section wire rope 1 in insertion connecting rod 8 inner chambers, outside with that section bar of card platform 11, divide three sections to push with the machine of withholding, make it card platform 11 and zinc layer 7, wire rope 1 is crimped on together securely.

Said left joint 2 is inserted with the connecting rod of wire rope 1 that section, and its external form is the regular octahedron shape.

Said right connector 3 is inserted with the connecting rod of wire rope 1 that section, and its external form is the regular octahedron shape.

The cover flexible axle transmission device that the sleeve pipe that shown in Figure 10 is flexible axle of the present invention and its outside is equipped with is formed.As can be seen from Figure 10, this flexible axle places the sleeve pipe that is formed by connecting by sleeve pipe 12, sleeve pipe 13, sleeve pipe 14, sleeve pipe 16, sleeve pipe 18, the left part of left side joint 2 is connected with the transmission shaft 19 of mechanism that rotates or parts, and the right part of right connector 3 is connected with the line shaft 21 that places sleeve pipe; Be equipped with bearing 20 and bearing 22 between sleeve pipe 1 and the line shaft 21, be equipped with the base 15 and the base 17 that place on the support on the sleeve pipe 16.

Claims

1. flexible axle that is used for transferring rotational motion, it is characterized in that: it is by forming as the left joint (2) at the wire rope (1) of flexible axle mandrel and wire rope (1) two ends and right connector (3), left side joint (2) is the connecting rod (4) that has on it by axial centre inner chamber that circular hole forms, be equipped with the Ka Tai (10) that forms by the annular recess that is arranged in order its bottom angled on the internal chamber wall of connecting rod (4) end, wire rope (1) inserts in the inner chamber of connecting rod (4), in the gap between wire rope (1) and connecting rod (4) internal chamber wall, be equipped with the zinc layer (6) of the zinc cooling back formation of perfusion fusion, in the inner chamber of the axial centre circular hole of that section wire rope (1) in insertion connecting rod (4) inner chamber, be equipped with steel core circular shaft (5), outside with that section bar of Ka Tai (10), divide three sections to push with the machine of withholding, make it Ka Tai (10) and zinc layer (6), wire rope (1) is crimped on together securely; Right connector (3) is the connecting rod (8) that has on it by axial centre inner chamber that circular hole forms, be equipped with the Ka Tai (11) that forms by the annular recess that is arranged in order its bottom angled on the internal chamber wall of connecting rod (8) end, wire rope (1) inserts in the inner chamber of connecting rod (8), in the gap between wire rope (1) and connecting rod (8) internal chamber wall, be equipped with the zinc layer (7) of the zinc cooling back formation of perfusion fusion, be equipped with steel core circular shaft (9) in the inner chamber of the axial centre circular hole of that section wire rope (1) in insertion connecting rod (8) inner chamber, outside with that section bar of Ka Tai (11), divide three sections to push with the machine of withholding, make it Ka Tai (11) and zinc layer (7), wire rope (1) is crimped on together securely.

2. a kind of flexible axle that is used for transferring rotational motion according to claim 1 is characterized in that: said left joint (2), be inserted with the connecting rod of that section of wire rope (1), and its external form is the regular octahedron shape.

3. a kind of flexible axle that is used for transferring rotational motion according to claim 1 is characterized in that: said right connector (3), be inserted with the connecting rod of that section of wire rope (1), and its external form is the regular octahedron shape.