CN113623272A - Built-in guide vane adjusting mechanism of centrifugal compressor - Google Patents
Built-in guide vane adjusting mechanism of centrifugal compressor Download PDFInfo
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- CN113623272A CN113623272A CN202110731820.8A CN202110731820A CN113623272A CN 113623272 A CN113623272 A CN 113623272A CN 202110731820 A CN202110731820 A CN 202110731820A CN 113623272 A CN113623272 A CN 113623272A
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- guide vane
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本发明涉及一种离心压缩机的内置式导叶调节机构，其包括：通过轴承座连接于压缩机壳体上的导叶组件，所述导叶组件包括导叶轴，所述导叶轴的一端连接有导叶，所述导叶轴的另一端连接有连杆，所述连杆的另一端连接有拨杆；所述轴承座上连接有固定环；所述压缩机壳体上设有锁紧环，所述轴承座上设有驱动环；驱动环、锁紧环和固定环之间形成用于放置钢球的环形钢球槽，环形钢球槽内铺满有若干钢球；所述驱动环上设有与拨杆相配合的安装槽。本发明所采用的零部件需求精度较低，安装简便，且机构转动顺畅，转动所需力矩较小。
The invention relates to a built-in guide vane adjustment mechanism of a centrifugal compressor, which comprises: a guide vane assembly connected to a compressor casing through a bearing seat, the guide vane assembly includes a guide vane shaft, and the guide vane shaft has a One end is connected with a guide vane, the other end of the guide vane shaft is connected with a connecting rod, and the other end of the connecting rod is connected with a lever; the bearing seat is connected with a fixing ring; the compressor housing is provided with A locking ring, the bearing seat is provided with a driving ring; an annular steel ball groove for placing steel balls is formed between the driving ring, the locking ring and the fixing ring, and the annular steel ball groove is covered with a number of steel balls; The drive ring is provided with a mounting groove matched with the lever. The parts and components used in the present invention require low precision, are easy to install, and the mechanism rotates smoothly, and the torque required for the rotation is small.
Description
Technical Field
The invention relates to the field of centrifugal compressors, in particular to a built-in guide vane adjusting mechanism of a centrifugal compressor.
Background
The inlet guide vane adjusting mechanism of the centrifugal compressor has great influence on the pneumatic performance of the whole machine, so that the structure is required to be compact and the adjusting efficiency is required to be high.
Most of the inlet guide vane adjusting mechanisms of the existing centrifugal compressors drive one driving guide vane to rotate through an external rotary actuator, the driving guide vane drives a transmission ring to rotate, and then the transmission ring drives a plurality of driven guide vanes to rotate, so that synchronous linkage of the driving guide vane and the driven guide vanes is realized. The driving mode has higher requirements on the type selection of the actuator motor, requires larger driving force of the actuator motor, inevitably leads to larger volume of the actuator motor, and only the actuator and the motor can be arranged outside the compressor in order to not increase the volume of the centrifugal compressor.
The inlet guide vane adjusting mechanism of the existing centrifugal compressor has a complex structure, the guide vanes are actively and passively distinguished, the stress of the guide vanes is uneven, and simultaneously, the leakage points of the compressor are increased due to the external arrangement of an actuator.
The inlet guide vane adjusting mechanism of the existing centrifugal compressor drives a blade driving ring to rotate through 2 built-in linear actuators, and the blade driving ring drives a plurality of driven guide vanes to rotate, so that the synchronous linkage of the driven guide vanes is realized. The driving mode has higher requirement on the synchronous control of the motor of the actuator, and the motor is driven linearly, so that the running space of the mechanism is increased, and the volume of the centrifugal compressor is greatly increased. The inlet guide vane adjusting mechanism of the existing centrifugal compressor has the advantages of large structural operation space, high requirement on manufacturing precision and lower reliability.
Disclosure of Invention
Technical problem to be solved
In order to solve the problems in the prior art, the invention provides a built-in guide vane adjusting mechanism of a centrifugal compressor, which has the advantages of more compact structure, flexible action, accurate control and simple and convenient installation.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
an internal guide vane adjustment mechanism for a centrifugal compressor comprising: a vane assembly connected to the compressor housing by a bearing housing, the vane assembly being rotatable relative to the compressor housing; the guide vane assembly comprises a guide vane shaft, one end of the guide vane shaft is connected with a guide vane, the other end of the guide vane shaft is connected with a connecting rod, the other end of the connecting rod is connected with a deflector rod,
the bearing seat is connected with a fixing ring; the compressor shell is provided with a locking ring, the bearing seat is provided with a driving ring, and the locking ring and the fixing ring relatively limit the driving ring; an annular steel ball groove for placing steel balls is formed among the driving ring, the locking ring and the fixing ring, and a plurality of steel balls are fully paved in the annular steel ball groove; and the driving ring is provided with an installation groove matched with the deflector rod.
Furthermore, a shaft sleeve is sleeved on the guide vane shaft and connected to the bearing seat; the shaft sleeve is divided into a left shaft sleeve and a right shaft sleeve.
Further, a disc spring is arranged between the connecting rod and the end part of the guide vane shaft.
Further, a worm wheel is connected to the locking ring and is rotatable relative to the locking ring, and the worm wheel is connected to the drive ring.
Furthermore, a worm assembly connected with the worm wheel is arranged on the compressor shell, the worm assembly comprises a worm connected to the compressor shell through a left bearing and a right bearing, the worm is connected with the worm wheel, a stepping motor is connected to the compressor shell through a support, a motor shaft of the stepping motor is connected with one end of the worm, and a lead of the stepping motor is electrically connected with a wiring board connected to the compressor shell through a wire nose.
Furthermore, a stop block is connected to the locking ring, and a limit screw matched with the stop block is arranged on the driving ring.
Further, the right bearing is connected to the compressor housing through a third snap spring.
(III) advantageous effects
The invention has the beneficial effects that: 1. the adopted parts have low required precision, simple and convenient installation, smooth mechanism rotation and small torque required by rotation;
2. the worm gear and worm transmission structure is adopted, the torque load requirement is greatly reduced due to the large gear ratio, and therefore the rotating load requirement can be met by selecting a stepping motor with a small size;
3. the self-locking condition of the worm gear is stable, so that the guide vane is stable and firm in the use process and cannot rotate due to load;
4. the whole structure is compact, and the whole size is greatly reduced;
5. the power lines of the stepping motor are connected through the wiring board, so that the built-in of the whole structure is realized, and the increased leakage point caused by the external arrangement of the actuator is avoided.
Drawings
FIG. 1 is a front view of the structure of one embodiment of the present invention;
FIG. 2 is a structural cross-sectional view of one embodiment of the present invention;
FIG. 3 is a cross-sectional view of a vane assembly construction according to an embodiment of the present invention;
fig. 4 is a sectional view of a worm assembly according to an embodiment of the present invention.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
An internal guide vane adjusting mechanism of a centrifugal compressor according to an embodiment of the present invention, as shown in fig. 1 to 4, includes: the vane assembly 3 is rotatable relative to the compressor housing 24 by the vane assembly 3 being connected to the compressor housing 24 by the bearing housing 1.
Specifically, the guide vane assembly 3 comprises a guide vane shaft 31, one end of the guide vane shaft 31 is connected with a guide vane 32, a shaft sleeve 2 is sleeved on the guide vane shaft 31, and the shaft sleeve 2 is connected to a bearing seat 1; the other end of the guide vane shaft 31 is connected with a connecting rod 6 through a first snap spring 5, a disc spring 4 is arranged between the connecting rod 6 and the end part of the guide vane shaft 31, the disc spring 4 is made of a lubrication-free wear-resistant material, and the rotating friction force is reduced on the basis of providing the axial fixing force effect of the guide vane; the shaft sleeve 2 is made of a lubrication-free wear-resistant material and is arranged in each guide vane blade hole on the bearing seat 1, and the shaft sleeve 2 is divided into a left shaft sleeve 2a and a right shaft sleeve 2b to reduce the friction force of contact surfaces at two ends of the guide vane shaft 31.
Specifically, the other end of the connecting rod 6 is connected with a deflector rod 8 through a second snap spring 7, the outer end of the deflector rod 8 forms a ball head, the surface of the ball head of the deflector rod 8 is processed smoothly, surface quenching treatment is carried out, and surface hardness is increased.
Specifically, a fixing ring 9 is connected to the bearing seat 1; the compressor shell 24 is provided with a locking ring 11, the bearing seat 1 is provided with a driving ring 12, the driving ring 12 is not connected with the bearing seat 1 by adopting a connecting piece, but is placed on the bearing seat 1, and the locking ring 11 and the fixing ring 9 relatively limit the driving ring 12; an annular steel ball groove for placing the steel balls 10 is formed among the driving ring 12, the locking ring 11 and the fixing ring 9, a plurality of steel balls 10 are fully paved in the annular steel ball groove, and the steel balls 10 are used for driving the driving ring 12; and the driving ring 12 is provided with an installation groove matched with the ball head of the deflector rod 8, and the ball head of the deflector rod 8 is positioned in the installation groove.
Specifically, a worm wheel 21 is connected to the locking ring 11, the worm wheel 21 is rotatable relative to the locking ring 11, the worm wheel 21 is connected to the driving ring 12, the worm wheel 21 rotates to drive the driving ring 12 to rotate, the driving ring 12 drives the ball of the shift lever 8 to rotate, and the shift lever 8 drives the guide vane assembly 3 to rotate through the connecting rod 6, so that the angle adjustment of the guide vane 32 is realized.
Specifically, be equipped with the worm subassembly that is connected with worm wheel 21 on compressor housing 24, the worm subassembly includes the worm 13 that connects on compressor housing 24 through left bearing 20 and right bearing 14, right bearing 14 connects on compressor housing 24 through third jump ring 15, worm 13 is connected with worm wheel 21, be connected with step motor 18 through support 16 on the compressor housing 24, the motor shaft of step motor 18 is connected with the one end of worm 13, and the lead wire of step motor 18 is connected with wiring board 19 on compressor housing 24 through the line nose and is electrically connected.
Furthermore, a stop 23 is connected to the locking ring 11, and a limit screw 22 matched with the stop 23 is arranged on the driving ring 12 and used for limiting the rotation range of the driving ring 12, so as to further limit the rotation angle of the guide vane 32 to 0-90 degrees, and the limit is a mechanical limit, thereby reliably limiting the rotation range of the guide vane 32.
When the guide vane opening control device is used, the connection plate 19 is connected with the stepping motor 18, the stepping motor 18 is controlled to drive the worm 13 to rotate, the worm 13 drives the worm wheel 21 to perform speed reduction transmission, the worm wheel 21 and the driving ring 12 rotate synchronously, and the driving ring 12 drives the guide vanes 32 to rotate synchronously through the deflector rod 8 and the connecting rod 6, so that the purpose of accurately controlling the opening of the guide vanes is achieved.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (7)
1. An internal guide vane adjusting mechanism of a centrifugal compressor is characterized by comprising: a guide vane assembly (3) connected to the compressor housing (24) by a bearing block (1), the guide vane assembly (3) being rotatable relative to the compressor housing (24); the guide vane assembly (3) comprises a guide vane shaft (31), one end of the guide vane shaft (31) is connected with a guide vane (32), the other end of the guide vane shaft (31) is connected with a connecting rod (6), the other end of the connecting rod (6) is connected with a shift lever (8),
the bearing seat (1) is connected with a fixed ring (9); the compressor is characterized in that a locking ring (11) is arranged on the compressor shell (24), a driving ring (12) is arranged on the bearing seat (1), and the locking ring (11) and the fixing ring (9) relatively limit the driving ring (12); an annular steel ball groove for placing the steel ball (10) is formed among the driving ring (12), the locking ring (11) and the fixing ring (9), and a plurality of steel balls (10) are fully paved in the annular steel ball groove; and the driving ring (12) is provided with an installation groove matched with the deflector rod (8).
2. The built-in vane adjustment mechanism of a centrifugal compressor as claimed in claim 1, wherein: the guide vane shaft (31) is sleeved with a shaft sleeve (2), and the shaft sleeve (2) is connected to the bearing seat (1); the shaft sleeve (2) is divided into a left shaft sleeve (2a) and a right shaft sleeve (2 b).
3. The built-in vane adjustment mechanism of a centrifugal compressor as claimed in claim 1, wherein: and a disc spring (4) is arranged between the connecting rod (6) and the end part of the guide vane shaft (31).
4. The built-in vane adjustment mechanism of a centrifugal compressor as claimed in claim 1, wherein: the locking ring (11) is connected with a worm wheel (21), the worm wheel (21) can rotate relative to the locking ring (11), and the worm wheel (21) is connected with the driving ring (12).
5. The built-in vane adjustment mechanism of a centrifugal compressor as claimed in claim 4, wherein: be equipped with the worm subassembly that is connected with worm wheel (21) on compressor housing (24), the worm subassembly includes worm (13) of connecting on compressor housing (24) through left bearing (20) and right bearing (14), worm (13) are connected with worm wheel (21), be connected with step motor (18) through support (16) on compressor housing (24), the motor shaft of step motor (18) is connected with the one end of worm (13), and the lead wire of step motor (18) is connected with wiring board (19) electricity on compressor housing (24) through the line nose.
6. The built-in vane adjustment mechanism of a centrifugal compressor as claimed in claim 1, wherein: the locking ring (11) is connected with a stop block (23), and the driving ring (12) is provided with a limit screw (22) matched with the stop block (23).
7. The built-in vane adjustment mechanism of a centrifugal compressor as claimed in claim 5, wherein: the right bearing (14) is connected to the compressor shell (24) through a third clamping spring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110731820.8A CN113623272A (en) | 2021-06-30 | 2021-06-30 | Built-in guide vane adjusting mechanism of centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110731820.8A CN113623272A (en) | 2021-06-30 | 2021-06-30 | Built-in guide vane adjusting mechanism of centrifugal compressor |
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| Publication Number | Publication Date |
|---|---|
| CN113623272A true CN113623272A (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110731820.8A Pending CN113623272A (en) | 2021-06-30 | 2021-06-30 | Built-in guide vane adjusting mechanism of centrifugal compressor |
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| CN (1) | CN113623272A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681195A (en) * | 2022-11-21 | 2023-02-03 | 势加透博洁净动力如皋有限公司 | Air inlet adjusting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6763738B1 (en) * | 1999-06-28 | 2004-07-20 | Koyo Seiko Co., Ltd. | Electric power steering apparatus |
| CN104712586A (en) * | 2013-12-17 | 2015-06-17 | 财团法人工业技术研究院 | Air inlet guide vane assembly |
| CN105020162A (en) * | 2015-06-24 | 2015-11-04 | 重庆美的通用制冷设备有限公司 | Air intake regulating device and centrifugal compressor having the same |
| US20160281736A1 (en) * | 2015-03-27 | 2016-09-29 | Dresser-Rand Company | Moveable inlet guide vanes |
| CN109915392A (en) * | 2017-12-12 | 2019-06-21 | 霍尼韦尔国际公司 | With variable inlet/outlet geometry vapour-cycling compressor |
| CN111350696A (en) * | 2020-04-30 | 2020-06-30 | 庆安集团有限公司 | Guide vane adjusting structure for centrifugal compressor |
-
2021
- 2021-06-30 CN CN202110731820.8A patent/CN113623272A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6763738B1 (en) * | 1999-06-28 | 2004-07-20 | Koyo Seiko Co., Ltd. | Electric power steering apparatus |
| US20040149512A1 (en) * | 1999-06-28 | 2004-08-05 | Koyo Seiko Co., Ltd. | Electric power steering apparatus |
| CN104712586A (en) * | 2013-12-17 | 2015-06-17 | 财团法人工业技术研究院 | Air inlet guide vane assembly |
| US20160281736A1 (en) * | 2015-03-27 | 2016-09-29 | Dresser-Rand Company | Moveable inlet guide vanes |
| CN105020162A (en) * | 2015-06-24 | 2015-11-04 | 重庆美的通用制冷设备有限公司 | Air intake regulating device and centrifugal compressor having the same |
| CN109915392A (en) * | 2017-12-12 | 2019-06-21 | 霍尼韦尔国际公司 | With variable inlet/outlet geometry vapour-cycling compressor |
| CN111350696A (en) * | 2020-04-30 | 2020-06-30 | 庆安集团有限公司 | Guide vane adjusting structure for centrifugal compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681195A (en) * | 2022-11-21 | 2023-02-03 | 势加透博洁净动力如皋有限公司 | Air inlet adjusting device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211109 |
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| RJ01 | Rejection of invention patent application after publication |