CN211343921U

CN211343921U - Hyperboloid end tooth joint suite

Info

Publication number: CN211343921U
Application number: CN202020026790.1U
Authority: CN
Inventors: 石得林
Original assignee: Xiongming Aviation Science And Technology Wuhu Co ltd
Current assignee: Xiongming Aviation Science And Technology Wuhu Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-08-25
Anticipated expiration: 2030-01-07

Abstract

The utility model relates to a hyperboloid end tooth joint kit, its characterized in that: the double-curved-surface concave tooth element comprises a double-curved-surface concave tooth element body, a double-curved-surface convex tooth element body and an end tooth shaft element which are connected by a central pull rod on the same axial line; be equipped with tip locking groove on the concave tooth spare body of hyperboloid, concave tooth spare connecting key groove, set up the side direction fitting pin at the right-hand member of the concave tooth spare body of hyperboloid, convex tooth spare connecting key groove, end tooth axle piece spread groove on the convex tooth spare body of hyperboloid, be equipped with the left side at the concave tooth spare body right-hand member of hyperboloid and connect to the groove between the right side spread groove that the convex tooth spare body left end of hyperboloid set up to the spread groove. Because the straight teeth are changed into the double-curved-surface teeth, the tooth area is enlarged in a limited space during connection, the tooth surface strength and the tooth root strength are increased, larger torque can be transmitted, the service life is longer, and meanwhile, the concave-convex (phi) -curved-surface tooth form can effectively resist centrifugal force, so that the product has higher safety and stability.

Description

Hyperboloid end tooth joint suite

Technical Field

The utility model relates to a connection key driving medium structure especially relates to a hyperboloid end tooth joint suite.

Background

At present, end face straight teeth or spline connection is generally adopted in the prior art. The spline is used for transmitting torque by adopting the connection of the inner teeth and the outer teeth of the two connected pieces, so that the volume is large, the fit clearance is large, and the contact area is small; the tooth contact mode of adopting end face straight tooth connection is a II parallel type contact, the contact area is limited, and the centrifugal force is poor when the high speed is overcome;

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hyperboloid end tooth joint kit solves the large tracts of land contact that the hookup tooth contact mode that adopts hyperboloid end tooth technique adopted unsmooth "()" curved surface profile of tooth, and flank of tooth intensity and tooth root intensity are high, can transmit bigger moment of torsion, let the product have a smaller volume and longer life.

The utility model provides a technical scheme that its technical problem adopted is: a hyperboloid end tooth connecting suite, which comprises hyperboloid arc front end tooth parts, hyperboloid arc middle end tooth parts and hyperboloid arc tail end tooth parts,

the hyperboloid arc front end tooth piece, the hyperboloid arc middle end tooth piece and the hyperboloid arc tail end tooth piece are coaxially arranged on the central pull rod and locked by the fastener,

a first lower-end internal connection gear ring is arranged in the lower connecting end of the hyperboloid arc-shaped front end tooth piece and is connected with a first upper-end internal connection gear ring arranged in the first upper connecting end of the hyperboloid arc-shaped middle end tooth piece,

the second lower connecting end of the hyperboloid arc-shaped middle end tooth piece is provided with a second lower end internal connecting gear ring which is meshed and connected with a second upper end internal connecting gear ring arranged in the second upper connecting end of the hyperboloid arc-shaped tail end tooth piece,

the tooth form of the first upper end tooth socket of the first lower end internal connection gear ring is convex arc, and the tooth form of the first lower end tooth socket of the first upper end internal connection gear ring is concave arc;

the tooth form of the second upper end tooth socket of the second lower end internal connection gear ring is convex arc, and the tooth form of the second lower end tooth socket of the second upper end internal connection gear ring is concave arc;

specifically, the first upper end tooth groove is shaped like a "()", the first lower end tooth groove is shaped like a "("), the second upper end tooth groove is shaped like a "()", and the second lower end tooth groove is shaped like a "(").

In order to connect stably, the hyperboloid arc middle end tooth piece is connected with the hyperboloid arc tail end tooth piece through a bolt.

Preferably, the middle part of the hyperboloid arc front end tooth piece is provided with an end tooth shaft piece key groove, and the upper part of the hyperboloid arc front end tooth is provided with an external connecting tooth at the position of the connecting end tooth bearing piece.

The utility model has the advantages that: because the straight teeth are changed into the hyperbolic teeth, the tooth area is enlarged in a limited space during connection, the tooth surface strength and the tooth root strength are increased, larger torque can be transmitted, the service life is longer, and meanwhile, the concave-convex "()", ") (") curved tooth shape can effectively resist centrifugal force, so that the product has higher safety and stability.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

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

Fig. 2 is a schematic structural diagram of the assembly structure of the present invention.

Fig. 3 is a front view of the hypoid curved front end tooth member of fig. 1.

Fig. 4 is a left side view of fig. 3.

FIG. 5 is a perspective view of a first upper end gullet of the hyperboloid arcuate front end tine of FIG. 4.

Fig. 6 is a schematic view of the configuration of the hypoid curved middle end tooth member in fig. 1.

Fig. 7 is a right side view of fig. 6.

Fig. 8 is a perspective view of a first lower end tooth slot of the hyperboloid arcuate middle end tooth member of fig. 1.

Fig. 9 is a left side view of fig. 6.

FIG. 10 is a perspective view of a second upper end gullet in the hyperboloid arc-shaped middle end tooth member of FIG. 6.

Fig. 11 is a front view of the hyperboloid-shaped trailing tooth of fig. 1.

Fig. 12 is a right side view of fig. 11.

FIG. 13 is a perspective view of a second lower end gullet in the hyperboloid arcuate tail tine of FIG. 11.

Detailed Description

The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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.

Embodiment 1, as shown in fig. 1 and 2, a hyperboloid end tooth coupling kit is arranged on a rotor structure of a water turbine or a gas turbine and is matched with a transmission connection:

in particular to a hyperboloid arc front end tooth piece 1, a hyperboloid arc middle end tooth piece 2 and a hyperboloid arc tail end tooth piece 3,

the hyperboloid arc front end tooth piece 1, the hyperboloid arc middle end tooth piece 2 and the hyperboloid arc tail end tooth piece 3 are coaxially arranged on a central pull rod 4 and are locked with the hyperboloid arc front end tooth piece 1 through a fastener 5,

as shown in fig. 3-13, the lower connecting end 11 of the hyperboloid arc-shaped front end tooth member 1 is provided with a first lower end internal connection gear ring 12, the first lower end internal connection gear ring 12 is connected with a first upper end internal connection gear ring 23 arranged at a first upper connecting end 22 of the hyperboloid arc-shaped middle end tooth member 2,

the second lower connecting end 23 of the hyperboloid arc-shaped middle end tooth piece 2 is provided with a second lower end internal connecting gear ring 24, the second lower end internal connecting gear ring 24 is meshed and connected with a second upper end internal connecting gear ring 33 arranged in a second upper connecting end 32 of the hyperboloid arc-shaped tail end tooth piece 3,

the tooth form of the first upper end tooth groove 121 of the first lower end internal connection gear ring 12 is convex arc-shaped, and the tooth form of the first lower end tooth groove 221 of the first upper end internal connection gear ring 23 is concave arc-shaped;

the tooth form of the second upper end tooth groove 25 of the second lower end inner connecting gear ring 24 is convex arc, and the tooth form of the second lower end tooth groove 34 of the second upper end inner connecting gear ring 33 is concave arc;

specifically, the first upper end tooth slot 121 is in a "()" shape,

the first lower end tooth groove 221 is ") (" type,

the second upper end tooth grooves 25 are in a "()" shape,

the second lower end gullet 34 is in the shape of a "(" shape ").

For the connection stability, the hyperboloid arc middle end tooth piece 2 is connected with the hyperboloid arc tail end tooth piece 3 through a bolt 6.

Preferably, the middle part of the hyperboloid arc-shaped front end tooth piece 1 is provided with an end tooth shaft piece key groove 7, and the upper part of the hyperboloid arc-shaped front end tooth piece 1 is provided with an outer connecting tooth 9 at the position of the connecting end tooth bearing piece 8.

The tooth form of the double-curved-surface-tooth workpiece 1 is in a shape like a Chinese character 'ji' in the figure, and the double-curved-surface-tooth workpiece 5 is in a shape like a Chinese character 'ji' in the figure, so that the two workpieces can be tensioned through the middle connecting rod when being connected, and large-area meshing of convex teeth and concave teeth is realized. Compared with the traditional straight teeth, the double-curved-surface teeth can be improved by about 5% in contact area, and arc surfaces are in contact, so that the stress concentration of the tooth surface is reduced, the bearing capacity of the whole double-curved-surface coupling is improved, and under the condition of the same tooth number, the bearing capacity of the double-curved-surface teeth can be improved by 20% -40% compared with the straight teeth.

The specific application is as follows: application in railway locomotives: the hyperboloid arc front end tooth piece 1, the hyperboloid arc middle end tooth piece 2 and the hyperboloid arc tail end tooth piece 3 of the structure are respectively connected with a bogie mandrel flange, a bogie mandrel and other transmission or torque transmission parts of a railway locomotive.

The solution is as follows: however, in the existing railway locomotive transmission wheel, straight teeth are changed into double-curved-surface teeth, so that the tooth area is enlarged in a limited space during connection, the tooth surface strength and the tooth root strength are increased, larger torque can be transmitted, the service life is longer, and the problems that the existing wheel speed detection sensor is large in maintenance workload, insufficient in precision due to the influence of conduction detection and the like exist.

Meanwhile, a hyperboloid arc front end tooth piece 1, a hyperboloid arc middle end tooth piece 2 and a hyperboloid arc tail end tooth piece 3 in the improved hyperboloid end tooth connecting kit are respectively connected with a linkage steering shaft, a synchronous overhead spindle and other transmission or torque transmission parts in the gas turbine. Besides the advantages, the large-area meshing of the convex teeth and the concave teeth is realized. Compared with the traditional straight teeth, the double-curved-surface teeth can be improved by about 5% in contact area, and arc-surface contact is beneficial to reducing stress concentration of the tooth surface, so that the bearing capacity of the whole double-curved-surface coupling is improved, and under the condition of the same tooth number, the bearing capacity of the double-curved-surface teeth can be improved by 20% -40% compared with the straight teeth.

Because the straight teeth are changed into the double-curved-surface teeth, the tooth area is enlarged in a limited space during connection, the tooth surface strength and the tooth root strength are increased, larger torque can be transmitted, the service life is longer, and meanwhile, the concave-convex (phi) -curved-surface tooth form can effectively resist centrifugal force, so that the product has higher safety and stability.

The above embodiments are merely to describe the preferred embodiments of the present invention, and are not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. A hyperboloid end tooth joint external member which characterized in that: the end tooth connecting sleeve comprises a hyperboloid arc front end tooth piece, a hyperboloid arc middle end tooth piece and a hyperboloid arc tail end tooth piece;

a second lower end internal connection gear ring is arranged at a second lower connecting end of the hyperboloid arc-shaped middle end tooth piece, and the second lower end internal connection gear ring is in meshed connection with a second upper end internal connection gear ring arranged at a second upper connecting end of the hyperboloid arc-shaped tail end tooth piece;

the tooth form of the second upper end tooth socket of the second lower end internal connection gear ring is a convex arc, and the tooth form of the second lower end tooth socket of the second upper end internal connection gear ring is a concave arc.

2. A hyperboloid end-tooth coupling kit as defined in claim 1, wherein: the first upper end tooth groove is in a shape of "()", the first lower end tooth groove is in a shape of ") (" type ", the second upper end tooth groove is in a shape of" () ", and the second lower end tooth groove is in a shape of") ("type".

3. A hyperboloid end-tooth coupling kit as defined in claim 1, wherein: the hyperboloid arc middle end tooth piece and the hyperboloid arc tail end tooth piece are connected through bolts.

4. A hyperboloid end-tooth coupling kit as defined in claim 1, wherein: the middle part of the hyperboloid arc front end tooth piece is provided with an end tooth shaft piece key groove, and an end tooth bearing piece on the upper part of the end tooth shaft piece key groove is provided with an external connecting tooth.