阅读说明：本技术 齿式结构加膜片式结构的联轴器 (Coupling with tooth structure and diaphragm structure ) 是由 洪坤 洪宇轩 魏安康 张丹 杨林 周艳玲 顾晓 杨淑明 王俊 胡韦巍 于 2021-01-07 设计创作，主要内容包括：本申请公开了齿式结构加膜片式结构的联轴器,包括法兰式安装盘、膜片、内齿轮轴套、连接轴、中间轴及外齿轮安转盘,法兰式安装盘安装在汽轮机轴头上,外齿轮安转盘安装在减速机高速轴轴头上,所述膜片设置在连接轴与法兰式安装盘之间,所述外齿轮安转盘与内齿轮轴套配套连接。本发明具有如下有益效果：本联轴器用于连接汽轮机及减速机高速轴,本联轴器的内齿轮轴套与外齿轮安转盘之间具有一定的来回窜动量,汽轮机的轴头热胀冷缩的轴头长度的变化量由外齿轮安转盘与内齿轮轴套之间的轴向预留余量来补偿,避免了轴系的预拉伸及联轴器中间中间轴的来回窜动,提高了压缩机机组的运行稳定性、可靠性。(The application discloses tooth-like structure adds shaft coupling of diaphragm formula structure, including flange formula mounting disc, diaphragm, internal gear axle sleeve, connecting axle, jackshaft and outer gear ann carousel, flange formula mounting disc is installed on the turbine spindle nose, and outer gear ann carousel is installed on speed reducer high-speed spindle nose, the diaphragm sets up between connecting axle and flange formula mounting disc, outer gear ann carousel and internal gear axle sleeve suit are connected. The invention has the following beneficial effects: the shaft coupling is used for connecting a steam turbine and a high-speed shaft of a speed reducer, a certain play amount comes and returns between an inner gear shaft sleeve and an outer gear mounting plate of the shaft coupling, the change amount of the shaft head length of the shaft head of the steam turbine caused by thermal expansion and cold contraction is compensated by the axial reserved allowance between the outer gear mounting plate and the inner gear shaft sleeve, pre-stretching of a shaft system and back-and-forth movement of an intermediate shaft in the middle of the shaft coupling are avoided, and the operation stability and the reliability of a compressor unit are improved.)

1. The utility model provides a shaft coupling of tooth-like structure with diaphragm formula structure which characterized in that, includes flange formula mounting disc, diaphragm, internal gear axle sleeve, connecting axle, jackshaft and outer gear ampere of carousel, flange formula mounting disc and internal gear axle sleeve set up respectively at the both ends of shaft coupling, the diaphragm sets up between jackshaft and flange formula mounting disc, outer gear ampere of carousel and internal gear axle sleeve suit are connected.

2. The coupler of claim 1, further comprising a connecting shaft, wherein one end of the connecting shaft is connected to the intermediate shaft, the other end of the connecting shaft is connected to the flange-type mounting plate, and the diaphragm is disposed between the connecting shaft and the flange-type mounting plate.

3. The coupler of claim 2, wherein the flange-type mounting plate is fixedly connected to the connecting shaft through a bolt assembly, the diaphragm is sleeved on a bolt of the bolt assembly, and two ends of the diaphragm respectively abut against the connecting shaft and the flange-type mounting plate.

4. The coupling of claim 2, wherein the connecting shaft and the intermediate shaft are secured together by a bolt assembly.

5. The coupling of claim 1, wherein the inner gear sleeve and the intermediate shaft are secured together by a bolt assembly.

6. The coupling of claim 2, wherein the inner gear sleeve is provided with an inner gear, the outer gear mounting plate is provided with an outer gear, and the inner gear of the inner gear sleeve is meshed with the outer gear of the outer gear mounting plate.

7. The coupling of claim 6, wherein the inner gear sleeve is a metal inner gear sleeve, and the outer gear ring is a metal outer gear ring.

8. The coupling of claim 6, wherein the intermediate shaft is a metal intermediate shaft.

Technical Field

The invention relates to the field of air separation equipment connection, in particular to a coupler with a tooth-type structure and a diaphragm type structure.

Background

The compressor unit is an important corollary device of the air separation plant, in order to be able to adapt to the development trend of the coal chemical industry, in the corollary process of all compressors at present, the corollary couplers on the compressor unit all adopt a single structure, one is a tooth-type coupler, and a middle shaft of the coupler has a set axial back-and-forth movement amount, which can cause the instability of a rotor; the other type is a laminated or diaphragm type coupler, both sides of the laminated or diaphragm type coupler adopt a laminated or diaphragm structure, and the coupler connected with the steam turbine and the speed reducer needs to be pre-stretched when the compressor unit is in a static state, so that pre-pressure is brought to a thrust bearing of the steam turbine and a high-speed shaft thrust bearing of the speed reducer, and the thrust bearing is easily damaged in the starting stage of equipment because an oil film of the thrust bearing in the static state is not formed.

Disclosure of Invention

The invention provides a coupler with a tooth structure and a diaphragm structure aiming at the problems.

The technical scheme adopted by the invention is as follows:

the utility model provides a shaft coupling of tooth-like structure with diaphragm formula structure, includes flange formula mounting disc, diaphragm, internal gear axle sleeve, connecting axle, jackshaft and outer gear ann carousel, flange formula mounting disc and internal gear axle sleeve set up the both ends at the shaft coupling respectively, the diaphragm sets up between jackshaft and flange formula mounting disc, outer gear ann carousel and internal gear axle sleeve suit are connected.

This shaft coupling adopts following mounting structure when using, the flange formula mounting disc is installed on the turbine spindle nose, outer gear installation carousel dress is on speed reducer high-speed spindle nose, power is provided by the steam turbine, the power that the steam turbine provided transmits for speed reducer high-speed spindle through this shaft coupling, this shaft coupling is owing to adopted the shaft coupling of tooth-like structure with diaphragm formula structure, certain play volume (the allowance is reserved to the axial) that comes back and forth has between the internal gear axle sleeve of this shaft coupling and the outer gear installation carousel, the change volume of the spindle nose length of the spindle nose expend with heat and contract with cold of steam turbine is reserved the allowance by the axial between outer gear installation carousel and the internal gear axle sleeve and is compensated, the pretension of shafting and the play back and forth of the jackshaft coupling middle shaft have been avoided, the operating stability and.

In summary, the coupling is equivalent to combining a tooth coupling and a diaphragm coupling together, and the two sides of the coupling are respectively in a tooth structure and a diaphragm structure.

Optionally, the diaphragm type vibration damper further comprises a connecting shaft, wherein the connecting shaft is arranged at one end of the intermediate shaft, one end of the connecting shaft is connected with the intermediate shaft, the other end of the connecting shaft is connected with the flange type mounting disc, and the diaphragm is arranged between the connecting shaft and the flange type mounting disc. The connecting shaft and the middle shaft are combined together to form a large middle shaft, and the middle shaft is arranged for the installation requirement of the whole coupler.

Optionally, the flange-type mounting plate is fixedly connected with the connecting shaft through a bolt assembly, the diaphragm is sleeved on a bolt of the bolt assembly, and two ends of the diaphragm are respectively tightly attached to the connecting shaft and the flange-type mounting plate.

Optionally, the connecting shaft and the intermediate shaft are fixed together by a bolt assembly.

Optionally, the internal gear shaft sleeve and the intermediate shaft are fixed together through a bolt assembly.

Optionally, the inner gear shaft sleeve is provided with an inner gear, the outer gear mounting disc is provided with an outer gear, and the inner gear of the inner gear shaft sleeve is meshed with the outer gear of the outer gear mounting disc.

Optionally, the inner gear shaft sleeve is a metal inner gear shaft sleeve, and the outer gear rotating disk is a metal outer gear rotating disk.

The inner gear shaft sleeve, the outer gear rotating disc, the connecting shaft, the intermediate shaft and the flange type mounting disc which are made of metal materials are adopted, so that the strength and the service life of the whole coupling can be guaranteed.

The invention has the beneficial effects that: the shaft coupling is used for connecting a steam turbine and a high-speed shaft of a speed reducer, a certain play amount comes and returns between an inner gear shaft sleeve and an outer gear mounting plate of the shaft coupling, the change amount of the shaft head length of the shaft head of the steam turbine caused by thermal expansion and cold contraction is compensated by the axial reserved allowance of the outer gear mounting plate and the inner gear shaft sleeve, pre-stretching of a shaft system and back-and-forth play of a middle shaft of the shaft coupling are avoided, and the operation stability and the reliability of a compressor unit are improved.

Description of the drawings:

fig. 1 is a schematic diagram of a coupling with a tooth structure and a diaphragm structure.

The figures are numbered: 801. the flange type mounting plate comprises a flange type mounting plate 802, a first bolt assembly 803, a diaphragm 804, a connecting shaft 805, a second bolt assembly 806, an intermediate shaft 807, an inner gear shaft sleeve 808 and an outer gear ampere-rotating plate.

The specific implementation mode is as follows:

the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the coupling with a tooth structure and a diaphragm structure includes a flange-type mounting plate 801, a diaphragm 803, an inner gear sleeve 807, an intermediate shaft 806, and an outer gear ring 808, where the flange-type mounting plate 801 and the inner gear sleeve 807 are respectively disposed at two ends of the coupling, the diaphragm 803 is disposed between the connecting shaft 804 and the flange-type mounting plate 801, and the outer gear ring 808 and the inner gear sleeve 807 are connected in a matching manner.

This coupling adopts following mounting structure when using, flange formula mounting disc 801 is installed on the turbine spindle nose, outer gear ampere disk 808 is adorned on speed reducer high-speed spindle nose, power is provided by the steam turbine, the power that the steam turbine provided transmits for speed reducer high-speed spindle through this coupling, this coupling is owing to adopted the coupling of tooth-like structure with the diaphragm formula structure, certain play amount (the axial allowance of reserving) comes back and forth has between this coupling's inner gear axle sleeve 807 and outer gear ampere disk 808, the change volume of the spindle nose length of the spindle nose expend with heat and contract with cold of steam turbine is reserved the allowance by the axial between outer gear ampere disk 808 and inner gear axle sleeve 807 and is compensated, the pretension of shafting and the play back and forth of coupling jackshaft 806 have been avoided, the operational stability of compressor unit, reliability are improved.

In summary, the coupling is equivalent to combining a tooth coupling and a diaphragm coupling together, and two sides of the coupling are respectively in a tooth structure and a diaphragm structure.

As shown in fig. 1, the flange type mounting plate further comprises a connecting shaft 804, the connecting shaft 804 is mounted at one end of an intermediate shaft 806, the flange type mounting plate 801 is connected with the connecting shaft 804 through a first bolt assembly 802 and a diaphragm 803, and the diaphragm 803 is arranged between the connecting shaft 804 and the flange type mounting plate 801.

The combination of the connecting shaft 804 and the intermediate shaft 806 forms a "large intermediate shaft 806" which is provided for the mounting requirements of the entire coupling.

As shown in fig. 1, the flange-type mounting plate 801 is connected to the connecting shaft 804 through the first bolt assembly 802 and the diaphragm 803, the diaphragm 803 is sleeved on the bolt of the first bolt assembly 802, and two ends of the diaphragm 803 are respectively attached to the connecting shaft 804 and the flange-type mounting plate 801.

As shown in fig. 1, the connecting shaft 804 and the intermediate shaft 806 are fixed together by the second bolt assembly 805.

As shown in fig. 1, the inner gear boss 807 and the intermediate shaft 806 are fixed together by the second bolt assembly 805.

As shown in fig. 1, an internal gear is disposed on the internal gear sleeve 807, an external gear is disposed on the external gear ampere disk 808, and the internal gear of the internal gear sleeve 807 is meshed with the external gear of the external gear ampere disk 808.

As shown in fig. 1, the inner gear shaft sleeve 807 is a metal inner gear shaft sleeve, and the outer gear ampere-rotating disk 808 is a metal outer gear ampere-rotating disk.

The outer gear lock disk 808, the inner gear shaft sleeve 807, the intermediate shaft 806, the connecting shaft 804, the diaphragm 802, the flange type mounting disk 801 and the corresponding connecting bolt component which are made of metal materials can ensure the strength and the service life of the whole coupling.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and can be directly or indirectly applied to other related fields of technology.