阅读说明：本技术 一种新型燃气轮机压气机用可转导叶联动装置 (Novel rotatable guide vane linkage device for gas turbine compressor ) 是由 邓庆锋 孙勇 张舟 高思华 于 2019-12-12 设计创作，主要内容包括：一种新型燃气轮机压气机用可转导叶联动装置,它涉及一种可转导叶联动装置,具体涉及一种新型燃气轮机压气机用可转导叶联动装置。本发明为了解决现有燃气轮机压气机可转导叶联动装置加工成本高、装配复杂,可转导叶转角调节精度较低、调节能力不足的问题。本发明包括摇臂、联动环、第一连接组件和第二连接组件,摇臂通过所述第一连接组件安装在可转导叶的轴颈上,摇臂通过所述第二连接组件与联动环连接。本发明属于燃气轮机设备领域。(The utility model provides a novel but gas turbine is rotatable stator aggregate unit for compressor, it relates to a but rotatable stator aggregate unit, concretely relates to novel but rotatable stator aggregate unit for gas turbine compressor. The invention aims to solve the problems of high processing cost, complex assembly, lower corner adjusting precision and insufficient adjusting capacity of the rotatable guide vane linkage device of the gas turbine compressor in the prior art. The rocker arm comprises a rocker arm, a linkage ring, a first connecting assembly and a second connecting assembly, wherein the rocker arm is installed on a shaft neck of a rotatable guide vane through the first connecting assembly, and the rocker arm is connected with the linkage ring through the second connecting assembly. The invention belongs to the field of gas turbine equipment.)

1. The utility model provides a novel but gas turbine compressor is with revolving stator aggregate unit which characterized in that: a novel rotatable guide vane linkage device for a gas turbine compressor comprises a rocker arm (1), a linkage ring (2), a first connecting assembly and a second connecting assembly, wherein the rocker arm (1) is installed on a shaft neck of a rotatable guide vane, and the rocker arm (1) is connected with the linkage ring (2) through the second connecting assembly.

2. The novel rotatable vane linkage assembly of claim 1, wherein: the first connecting assembly comprises a first self-locking nut (5) and a close-fitting bolt (6), and the close-fitting bolt (6) sequentially penetrates through a shaft neck of the rotatable guide vane and the rocker arm (1) and then is inserted into the first self-locking nut (5).

3. The novel rotatable vane linkage assembly of claim 1, wherein: the second connecting assembly comprises a tight-fitting pin (3), a joint bearing (4) and a second self-locking nut (7), the joint bearing (4) is installed on the rocker arm (1), and the tight-fitting pin (3) sequentially penetrates through the joint bearing (4) and the linkage ring (2) and then is inserted into the second self-locking nut (7).

4. The novel rotatable vane linkage assembly of claim 1, wherein: the rocker arm (1) is made of an elastomer material and is a rocker arm (1).

5. The novel rotatable vane linkage assembly of claim 1, wherein: the thickness (D) of the rocker arm (1) is 1 mm.

6. A novel rotatable vane linkage assembly for a gas turbine compressor as claimed in claim 1 or claim 3 wherein: a radial gap (H) is reserved between the joint bearing (4) and the linkage ring (2), and the radial gap (H) is smaller than 0.2 mm.

7. The novel rotatable vane linkage assembly of claim 3, wherein: the joint bearing (4) is screwed into the spherical inner ring of the rocker arm (1) through a rectangular notch on the rocker arm (1).

Technical Field

The invention relates to a rotatable guide vane linkage device, in particular to a novel rotatable guide vane linkage device for a gas turbine compressor, and belongs to the field of gas turbine equipment.

Background

The rotatable guide vane is a widely adopted method for preventing the compressor of the gas turbine from surge at present. During the starting and stopping processes of the gas turbine, the stable working margin of the gas compressor can be improved and the gas turbine can be prevented from surging by adjusting the opening of the rotatable guide vanes. During the starting process of the gas turbine, the power consumption of the starting motor of the gas turbine can be reduced by adjusting the rotatable guide vanes. In the variable working condition operation process of the gas turbine, the inlet air flow of the unit can be adjusted, the power load of the unit can be changed, and the fuel economy of the unit can be improved by adjusting the rotatable guide vanes. At present, the rotatable guide vane linkage mechanism of the gas turbine compressor in China has a complex structure form, the angle adjusting precision of the rotatable guide vane is limited, and the adjusting capability of the rotatable guide vane can not meet the operation requirement of a high-power gas turbine.

Disclosure of Invention

The invention provides a novel rotatable guide vane linkage device for a gas turbine compressor, aiming at solving the problems of high processing cost, complex assembly, lower adjustment precision of a rotatable guide vane corner and insufficient adjustment capability of the conventional rotatable guide vane linkage device for the gas turbine compressor.

The technical scheme adopted by the invention for solving the problems is as follows: the rocker arm comprises a rocker arm, a linkage ring, a first connecting assembly and a second connecting assembly, wherein the rocker arm is installed on a shaft neck of a rotatable guide vane through the first connecting assembly, and the rocker arm is connected with the linkage ring through the second connecting assembly.

Furthermore, the first connecting assembly comprises a first self-locking nut and a close-fitting bolt, and the close-fitting bolt sequentially penetrates through a shaft neck and a rocker arm of the rotatable guide vane and then is inserted into the first self-locking nut.

Furthermore, the second connecting assembly comprises a close-fitting pin, a joint bearing and a second self-locking nut, the joint bearing is installed on the rocker arm, and the close-fitting pin sequentially penetrates through the joint bearing and the linkage ring and then is inserted into the second self-locking nut.

Further, the rocker arm is made of elastomer material.

Further, the thickness of the rocker arm is 1 mm.

Further, a radial gap is reserved between the joint bearing and the linkage ring, and the radial gap is smaller than 0.2 mm.

Furthermore, the joint bearing is screwed into the spherical inner ring of the rocker arm through a rectangular notch on the rocker arm.

The invention has the beneficial effects that: the rotatable guide vane linkage device is simple in structure, easy to process and convenient to mount and dismount; the device is not limited by space and is easy to arrange; the rotatable guide vane can rotate in a large angle range, and the working stability and reliability are high; the linkage control is accurate, the angle deviation can be guaranteed within a range of +/-1 degrees, and the operating requirement of the gas turbine on variable working condition operation is met.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of fig. 1 from direction B.

Detailed Description