CN213478968U

CN213478968U - Big hub diaphragm coupling

Info

Publication number: CN213478968U
Application number: CN202022186314.9U
Authority: CN
Inventors: 张金铠
Original assignee: Shenyang Hengte Power Machinery Co ltd
Current assignee: Shenyang Hengte Power Machinery Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-18
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a large hub diaphragm coupling, which comprises a mounting disc, a transfer shaft, a lamination assembly, a bush, a middle section, a driving bolt, a bolt for reaming holes and an adjusting gasket; the adapter shaft, the middle section and the lamination assembly are connected through a bushing and a driving bolt, so that a flexible assembly is formed; the mounting disc and the switching shaft are connected through a bolt for reaming, an adjusting gasket is arranged between the mounting disc and the switching shaft, a positioning spigot is arranged on the switching shaft, and the positioning spigot is correspondingly inserted into a concave hole of the mounting disc. The utility model provides a pair of diaphragm coupling can be applied to turbine unit, gas unit and all kinds of turbine driven equipment to and centrifugal compressor and other well high-speed rotating machine. The large hub design has the advantages of relatively large allowable shaft diameter, convenient maintenance, capability of independently replacing the laminated assembly and large compensation capacity.

Description

Big hub diaphragm coupling

Technical Field

The utility model belongs to the technical field of well high-speed industrial equipment transmission, a bull wheel hub diaphragm shaft coupling is related to.

Background

The coupling is an indispensable basic component in mechanical transmission. At present, in the field of medium-high speed industrial equipment transmission, a tooth type coupling and a film type coupling are mainly applied. The gear coupling needs lubrication, has a complex structure and high processing and manufacturing costs, cannot compensate radial dislocation of a machine set, and generates large additional force on the machine set. The diaphragm coupling can compensate axial, radial and angular offsets due to the deformation of the diaphragm and is widely applied to industrial application, but the general large hub coupling is widely applied to transmission of a medium-low speed motor speed reducer and the like, once the large hub coupling is applied to medium and high speed, good dynamic balance cannot be kept due to structural problems, and the unit can vibrate to exceed the standard in actual operation, so that the unit is poor in operation.

Disclosure of Invention

An object of the utility model is to provide a big wheel hub diaphragm coupling to the realization makes the diaphragm coupling have medium-high speed big torque, maintain convenient, allow to change the lamination subassembly alone and the big purpose of compensation ability.

The purpose of the utility model can be realized by the following technical scheme:

a large hub diaphragm coupling comprises an installation disc, a transfer shaft, a lamination assembly, a lining, a middle section, a driving bolt, a bolt for a reaming hole and an adjusting gasket; the adapter shaft, the middle section and the lamination assembly are connected through a bushing and a driving bolt, so that a flexible assembly is formed; the mounting disc and the switching shaft are connected through a bolt for reaming, an adjusting gasket is arranged between the mounting disc and the switching shaft, a positioning spigot is arranged on the switching shaft, and the positioning spigot is correspondingly inserted into a concave hole of the mounting disc.

Furthermore, a first anti-cornice is arranged on a flange of the mounting disc.

Furthermore, a second anti-cornice and a third anti-cornice are respectively arranged on flanges on two sides of the transfer shaft.

Further, the adapter shaft, the middle section and the lamination assembly are installed through installation screws.

Furthermore, the laminated assembly is formed by combining a plurality of waist-shaped stainless steel sheets; a plurality of mounting holes are formed in the waist-shaped stainless steel sheets at equal intervals, diaphragm fixing pieces are arranged in the mounting holes, and the diaphragm fixing pieces are alternately mounted in the mounting holes in a positive-negative mode.

The utility model has the advantages that:

the utility model provides a pair of big wheel hub diaphragm coupling can be applied to turbine unit, gas unit and all kinds of turbine drive's equipment to and centrifugal compressor and other well high-speed rotating machine. The installation and maintenance are convenient, the bolt can be quickly connected, the laminated assembly can be independently replaced, and the compensation capacity is high.

The utility model has the advantages of simple and reasonable structure, during the application, rated torque capacity can reach 325000Nm at most, and the biggest admissible rotational speed can reach 31500r/min, and axial compensation ability can reach 6mm, and angular compensation ability can reach 0.4 degree

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a diaphragm coupling according to the present invention;

FIG. 2 is a schematic cross-sectional view of the transfer shaft of the present invention;

fig. 3 is a schematic side view of the structure of the adapter shaft according to the present invention.

Detailed Description

The invention will be further explained below with reference to specific embodiments, without limiting the invention.

As shown in fig. 1-3, a large hub diaphragm coupling comprises a mounting disc 1, an adapter shaft 2, a lamination assembly 3, a bushing 4, a middle section 5, a driving bolt 6, a bolt 8 for a reaming hole and an adjusting shim 11; the transfer shaft 2, the middle section 5 and the lamination assembly 3 are connected through a bushing 4 and a driving bolt 6, so that a flexible assembly is formed;

the mounting disc 1 is connected with the adapter shaft 2 through a bolt 8 for reaming, an adjusting gasket 11 is arranged between the mounting disc 1 and the adapter shaft 2, and the axial mounting deviation is finely adjusted by increasing or decreasing the number of the adjusting gaskets;

the adapter shaft 2 is provided with a positioning spigot 14, and the positioning spigot 14 can enable the adapter shaft 2 and the mounting disc to be coaxial all the time, so that the dynamic balance precision is ensured; the positioning spigot 14 is correspondingly inserted into the concave hole of the mounting plate 1.

In order to prevent the bolts, the membranes and the like from being broken and splashed, a first anti-flying brim 10 is arranged on the outer edge of the flange of the mounting plate 1.

And the outer edges of the flanges at the two sides of the adapter shaft 2 are respectively provided with a second anti-cornice 7 and a third anti-cornice 13.

The adapter shaft 2, the middle section 5 and the lamination assembly 3 are mounted by mounting screws 12.

The laminated assembly 2 is formed by combining a plurality of waist-shaped stainless steel sheets; a plurality of mounting holes are formed in the waist-shaped stainless steel sheets at equal intervals, membrane fixing pieces are arranged in the mounting holes, and the plurality of membrane fixing pieces are alternately mounted in the mounting holes in a positive-negative mode.

During installation, the mounting disc 1 is respectively installed on the driving shaft 15 and the driven shaft 9, and the adapter shaft 2, the lamination assembly 3 and the lining 4 are connected with the middle section through the adjacent driving bolts 6 to form a whole. Make lamination subassembly forced deformation through adjusting mounting screw 12, make the riveting cover of lamination subassembly sink into in the macropore 16 of interlude 5 completely (macropore 16 is the drive bolt 6 department of inserting in fig. 1), reduce the distance between two spiale 2 and the 1 terminal surface flange of mounting disc, make the tang 14 of spiale 2 can insert the concave hole of mounting disc 1 smoothly, demolish mounting screw 12 afterwards, screw up bolt 8 and lock nut for the reamed hole, the shaft coupling installation is accomplished. The positioning spigot 14 on the adapter shaft 2 can ensure that the mounting disc and the adapter shaft 2 are coaxial all the time in high-speed rotation, thereby ensuring the dynamic balance precision.

The unit power passes through drive shaft 15 and passes to mounting disc 1 to transmit for the switching axle 2 through the bolt 8 for the reamed hole, drive bolt 6 transmits power for lamination subassembly 3, because lamination subassembly 3, switching axle 2, bush 4 are connected through adjacent drive bolt 6, and power transmits for interlude 5 through lamination subassembly 3.

In the same way, power is transmitted through the intermediate section 5 to the mounting disc at the other end and out to the driven shaft 9.

The overall assembly of the transfer shaft 2, the lamination assembly 3 and the middle section 5 in the embodiment has good dynamic balance retentivity and convenient disassembly and assembly.

In the embodiment, the laminated assembly 3 is formed by combining a plurality of waist-shaped stainless steel sheets, and has the maximum flexibility while ensuring the force transmission.

The mounting disc 1 and the adapting shaft 2 are connected by the bolts 8 for reaming holes, so that the mounting disc is convenient to disassemble, and damaged bearings and the like can be quickly replaced under the condition of not disassembling the unit.

When the driving shaft 15 and the driven shaft 9 run at a high speed, axial offset and angular offset can be generated under the influence of temperature rise and bearing deformation, the bushing 4 can transversely move in a large hole inherent in the middle section under the pushing of axial force, so that the total length of the coupler is integrally shortened, the axial offset of the driving shaft 15 and the driven shaft 9 is compensated, and the angular offset is eliminated through elastic deformation of the lamination assembly.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. A large hub diaphragm coupling is characterized in that a mounting disc (1), an adapter shaft (2), a lamination assembly (3), a lining (4), a middle section (5), a driving bolt (6), a bolt (8) for a reaming hole and an adjusting gasket (11); the adapter shaft (2), the middle section (5) and the lamination assembly (3) are connected through a bushing (4) and a driving bolt (6) to form a flexible assembly; mounting disc (1) and adapting shaft (2) adopt bolt (8) to be connected for the reaming hole, be equipped with adjusting shim (11) between mounting disc (1) and adapting shaft (2), be equipped with location tang (14) on adapting shaft (2), location tang (14) correspond in the shrinkage pool of inserting mounting disc (1).

2. A large hub diaphragm coupling according to claim 1, wherein the flange of the mounting disc (1) is provided with a first anti-cornice (10).

3. A large hub diaphragm coupling according to claim 1, wherein the flanges at two sides of the transfer shaft (2) are respectively provided with a second anti-cornice (7) and a third anti-cornice (13).

4. A large hub diaphragm coupling according to claim 1, wherein the coupling shaft (2), the intermediate section (5) and the lamination assembly (3) are mounted by means of mounting screws (12).

5. A large hub diaphragm coupling according to claim 1, wherein the lamination assembly (3) is formed by combining a plurality of waist-shaped stainless steel sheets; a plurality of mounting holes are formed in the waist-shaped stainless steel sheets at equal intervals, diaphragm fixing pieces are arranged in the mounting holes, and the diaphragm fixing pieces are alternately mounted in the mounting holes in a positive-negative mode.