CN221423556U - Guide vane adjusting and positioning structure - Google Patents
Guide vane adjusting and positioning structure Download PDFInfo
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- CN221423556U CN221423556U CN202323309704.0U CN202323309704U CN221423556U CN 221423556 U CN221423556 U CN 221423556U CN 202323309704 U CN202323309704 U CN 202323309704U CN 221423556 U CN221423556 U CN 221423556U
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- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
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Abstract
The guide vane regulating and positioning structure has guide vane connected to one driving arm with one end installed rotatably to the cover board of the reflux device and the other end installed relatively movably to the driving ring; the driving ring is driven to rotate to drive the other end of the driving arm and the guide vane to rotate by taking one end of the driving arm as a circle center; the adjusting and positioning structure comprises at least three positioning rings which are uniformly distributed on the periphery of the reflector cover plate, a positioning shaft sleeve is rotationally connected in the positioning rings through a sliding bearing, and the positioning shaft sleeve is fixedly connected with the reflector cover plate through a first screw; an adjusting gap is formed between the first screw and the positioning shaft sleeve, and the positioning ring moves in the adjusting gap range, so that the outer circumferential surface of the positioning ring abuts against the inner circumferential surface or the outer circumferential surface of the driving ring. According to the utility model, the driving ring is positioned by using at least three positioning rings, the positioning rings adjust the relative positions of the positioning rings and the driving ring through the positioning shaft sleeve and the first screw, so that the driving ring can be positioned accurately, and the operation is simple.
Description
Technical Field
The utility model relates to the field of compressors, in particular to a guide vane adjusting and positioning structure.
Background
Centrifugal compressors typically achieve control of flow by varying inlet guide vane angle and impeller speed. The angle adjustment of the current guide vanes is generally realized by the cooperative matching of a driving ring and a transmission mechanism, specifically, the driving ring is driven to rotate by the transmission mechanism, one end of each guide vane is positioned on the driving ring, the other end of each guide vane is positioned on a reflux device, and when the driving ring rotates, each guide vane can be driven to swing by taking one end positioned on the reflux device as the circle center, so that the synchronous adjustment of the angles of a plurality of guide vanes is realized; the guide vane adjusting structure is compact in design structure, good in adjusting consistency and high in precision. However, in order to ensure stable and smooth operation of the driving ring and further ensure smoothness and precision of guide vane adjustment, a proper gap needs to be adjusted between the driving ring and the reflux device; while there are generally two ways to maintain this clearance in place:
The driving ring is tightly attached to the reflux device through the circumferential surface, so that the structure is too compact, and the structure processing and assembling difficulties are high;
the other is to set up the screw between actuating ring and the backward flow ware, adopts the screw to carry out circumference location to the actuating ring, and this kind of locate mode needs to rely on the manual regulation clearance, can not have the difference, easily leads to the rotation of actuating ring to appear turning dead point and installation card dead phenomenon.
Therefore, how to solve the above-mentioned drawbacks of the prior art is a subject to be studied and solved by the present utility model.
Disclosure of utility model
The utility model aims to provide a guide vane adjusting and positioning structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The guide vane adjusting and positioning structure is characterized in that the guide vane is connected to a driving arm, one end of the driving arm is rotatably arranged on a cover plate of the reflux device, and the other end of the driving arm is arranged on a driving ring in a relatively movable manner; the driving ring is driven to rotate to drive the other end of the driving arm and the guide vane to rotate by taking one end of the driving arm as a circle center;
The adjusting and positioning structure comprises at least three positioning rings which are uniformly distributed on the periphery of the reflector cover plate, a positioning shaft sleeve is rotatably connected in the positioning rings through a sliding bearing, and the positioning shaft sleeve is fixedly connected with the reflector cover plate through a first screw;
An adjusting gap is formed between the first screw and the positioning shaft sleeve, and the positioning ring moves in the adjusting gap range, so that the outer circumferential surface of the positioning ring abuts against the inner circumferential surface or the outer circumferential surface of the driving ring.
In a further scheme, screw holes are formed in the reflector cover plate corresponding to the first screws, the first screws are tightly matched with the screw holes, two end faces of the positioning shaft sleeve respectively abut against the heads of the first screws and the reflector cover plate, and the positioning ring is positioned on the reflector cover plate.
In a further scheme, a round hole is formed in one end of the driving arm, and the shaft rod of the guide vane sequentially penetrates through the first mounting hole in the cover plate of the reflux device, the round hole and the driving pressing plate on the back of the driving arm and is detachably connected with the second screw.
In a further scheme, a waist-shaped hole is formed in the other end of the driving arm, a movable pin shaft is arranged in the waist-shaped hole, penetrates through a second mounting hole in the driving ring and the waist-shaped hole in sequence, and is detachably connected with a check ring on the back of the driving ring; the driving ring drives the other end of the driving arm and the blades to rotate by taking one end of the driving arm as a circle center through the movable pin shaft, and the other end of the driving arm and the movable pin shaft move relatively along the track of the waist-shaped hole.
In a further scheme, the driving ring is driven to rotate through a transmission mechanism, the transmission mechanism comprises a driving plate arranged on the driving ring, a cylinder is arranged on the driving plate, a driving shifting fork is arranged outside the cylinder, and the driving shifting fork is driven by a motor and drives the driving ring to rotate through the cylinder;
the driving shifting fork is provided with a U-shaped opening towards the driving ring, and the cylinder is rotatably arranged in the U-shaped opening and moves relative to the driving shifting fork along the track of the U-shaped opening.
In a further aspect, the driving fork is vertically connected to a driving shaft of the motor.
The working principle and the advantages of the utility model are as follows:
According to the utility model, at least three positioning rings are arranged on the peripheral side of the cover plate of the reflux device, the positioning rings are rotationally connected with the positioning shaft sleeve inside through the sliding bearing, and an adjusting gap is arranged between the positioning shaft sleeve and the first screw inside the positioning shaft sleeve, so that the positioning rings can move in the adjusting gap range, when each positioning ring is abutted against the peripheral surface of the driving ring, the accurate positioning of the driving ring can be completed, the smooth and stable rotation of the driving ring is ensured, the phenomena of rotation dead points and clamping points are avoided, and the opening heights of guide vanes are ensured to be consistent; meanwhile, the whole adjusting and positioning structure is simple in structure and low in adjusting and operating difficulty.
Drawings
FIG. 1 is an overall front view of the vane of the present utility model in a semi-open and semi-closed condition;
FIG. 2 is an overall rear view of the vane of the present utility model in a semi-open and semi-closed condition;
FIG. 3 is an overall side view of the vane of the present utility model in a semi-open and semi-closed condition;
FIG. 4 is an enlarged view of the portion A of FIG. 3 in accordance with the present utility model;
FIG. 5 is an exploded view of the vane mounting of the present utility model;
FIG. 6 is a perspective view of the drive arm of the present utility model;
FIG. 7 is an exploded view of the drive arm of the present utility model;
FIG. 8 is an exploded view of the installation of the drive mechanism and drive ring of the present utility model;
FIG. 9 is an overall front view of the vane of the present utility model in a fully closed condition;
FIG. 10 is an overall rear view of the vane of the present utility model in a fully closed condition;
FIG. 11 is an overall front view of the vane of the present utility model in a fully opened condition;
Fig. 12 is an overall rear view of the vane of the present utility model in a fully opened condition.
In the above figures: 1, a guide vane; 2 driving arms; a 21 round hole; 22 waist-shaped holes; 3, a reflux cover plate; 31 a first mounting hole; 32 screw holes; 4 driving a ring; 41 a second mounting hole; 5 a first thrust plate; 6, driving a pressing plate; 7, moving the pin shaft; 8, a second thrust plate; 9 third thrust plate; 10 check rings; 11 a transmission mechanism; 111 driving plates; 112 cylinders; 113 drive the fork; 114 a drive shaft; 12 positioning rings; 13 sliding bearings; 14 positioning the shaft sleeve; 15 first screws; 16, adjusting the gap; 17 second screw.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings and examples:
Examples: the present invention will be described in detail with reference to the drawings, wherein modifications and variations are possible in light of the teachings of the present invention, without departing from the spirit and scope of the present invention, as will be apparent to those of skill in the art upon understanding the embodiments of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. Singular forms such as "a," "an," "the," and "the" are intended to include the plural forms as well, as used herein.
The terms "first," "second," and the like, as used herein, do not denote a particular order or sequence, nor are they intended to be limiting, but rather are merely used to distinguish one element or operation from another in the same technical term.
As used herein, "connected" or "positioned" may refer to two or more components or devices in physical contact with each other, or indirectly, or in operation or action with each other.
As used herein, the terms "comprising," "including," "having," and the like are intended to be open-ended terms, meaning including, but not limited to.
The term (terms) as used herein generally has the ordinary meaning of each term as used in this field, in this disclosure, and in the special context, unless otherwise noted. Certain terms used to describe the present disclosure are discussed below, or elsewhere in this specification, to provide additional guidance to those skilled in the art in connection with the description herein.
The terms "front", "rear", "upper", "lower", "left", "right" and the like used herein are directional terms, and are merely used to describe positional relationships among the structures in the present application, and are not intended to limit the present protection scheme and the specific direction in actual implementation.
Referring to fig. 1-12, a guide vane adjusting and positioning structure is provided, wherein a guide vane 1 is connected to a driving arm 2, one end of the driving arm 2 is rotatably mounted on a reflux cover plate 3, and the other end is relatively movably mounted on a driving ring 4.
Wherein: the round hole 21 has been seted up to actuating arm 2 one end, the axostylus axostyle of stator 1 runs through in proper order first thrust piece 5 first mounting hole 31 on the reflector apron 3 round hole 21 and actuating arm 2 back drive clamp plate 6 to can dismantle with second screw 17 and be connected. One end of the driving pressing plate 6 is provided with a threaded hole matched with the second screw 17, and the other end of the driving pressing plate is provided with a positioning groove matched with the shaft lever, and the positioning groove is communicated with the threaded hole.
When in installation, firstly, the shaft rod of the guide vane 1 is installed in the first installation hole 31, then the first thrust piece 5, the driving arm 2 and the driving pressing plate 6 are sequentially installed on the shaft rod, and at the moment, one end of the shaft rod is inserted into the positioning groove of the driving pressing plate 6; then, a second screw 17 penetrates through a threaded hole of the driving pressing plate 6 to be matched with a threaded groove at the end part of the shaft rod; finally, the second screw 17 is screwed down, so that the guide vane 1 and the driving arm 2 are fixedly connected (see fig. 4-6 in detail). When one end of the driving arm 2 rotates, the guide vane 1 may rotate along with the driving arm 2 around the first mounting hole 31 (see fig. 9 and 11 for details).
The other end of the driving arm 2 is provided with a waist-shaped hole 22, a movable pin shaft 7 is arranged in the waist-shaped hole 22, the movable pin shaft 7 sequentially penetrates through a second mounting hole 41, a second thrust plate 8, the waist-shaped hole 22 and a third thrust plate 9 on the driving ring 4, and the tail end of the movable pin shaft 7 is detachably connected with a check ring 10 on the back surface of the driving ring 4; the driving ring 4 drives the other end of the driving arm 2 and the blade to rotate by taking one end of the driving arm 2 as a circle center through the moving pin 7, and the other end of the driving arm 2 and the moving pin 7 move relatively along the track of the waist-shaped hole 22 (see fig. 10 and 12 in detail).
In the installation process, the movable pin shaft 7 passes through the second installation hole 41 of the driving ring 4, then the second thrust plate 8 is installed on the movable pin shaft 7, the movable pin shaft 7 passes through the upper waist-shaped hole 22 of the driving arm 2, and then the third thrust plate 9 is installed and fixed by the check ring 10 (see fig. 4-6 in detail). When the driving ring 4 rotates, the driving ring 4 drives the movable pin shaft 7 to revolve, the movable pin shaft 7 drives the other end of the driving arm 2 to rotate by taking one end of the driving arm 2 as a circle center, and in the rotating process, the movable pin shaft 7 can move along Kong Changgui tracks of the waist-shaped hole 22.
Referring to fig. 1-3 and 8, the driving ring 4 is driven to rotate by a transmission mechanism 11, the transmission mechanism 11 comprises a driving plate 111 mounted on the driving ring 4 by a third screw, a cylinder 112 is arranged on the driving plate 111, a driving fork 113 is arranged outside the cylinder 112, the driving fork 113 is vertically connected to a driving shaft 114 of the motor, and is driven by the motor, and the driving fork 113 drives the driving ring 4 to rotate by the cylinder 112;
Wherein, a U-shaped opening is provided on the driving fork 113 towards the driving ring 4, and the cylinder 112 is rotatably disposed in the U-shaped opening and moves relatively to the driving fork 113 along the track of the U-shaped opening.
When the motor drives the driving shaft 114 to rotate, the driving shaft 114 drives the driving shifting fork 113 to swing by taking the center of the reflux cover plate 3 as the circle center, the driving shifting fork 113 indirectly drives the driving ring 4 to rotate through the cylinder 112 and the driving plate 111, and in the swinging process of the driving shifting fork 113, the cylinder 112 slides in the U-shaped opening along the length direction of the U-shaped opening, so that the cylinder 112 is ensured not to be separated from the U-shaped opening, and the stable rotation of the driving ring 4 is ensured.
Referring to fig. 1-4, the adjusting and positioning structure comprises at least three positioning rings 12 uniformly distributed on the periphery of the reflector cover plate 3, wherein a positioning shaft sleeve 14 is rotatably connected in the positioning rings 12 through a sliding bearing 13, and the positioning shaft sleeve 14 is fixedly connected with the reflector cover plate 3 through a first screw 15;
An adjusting gap 16 is formed between the first screw 15 and the positioning shaft sleeve 14, and the positioning ring 12 moves within the range of the adjusting gap 16, so that the outer circumferential surface of the positioning ring 12 abuts against the inner circumferential surface or the outer circumferential surface of the driving ring 4;
Screw holes 32 are formed in the reflector cover plate 3 corresponding to the first screws 15, the first screws 15 are tightly matched with the screw holes 32, two end faces of the positioning shaft sleeve 14 respectively abut against the heads of the first screws 15 and the reflector cover plate 3, and the positioning ring 12 is positioned on the reflector cover plate 3.
In this embodiment, the outer diameter of the cover plate 3 of the reflux device may be smaller than the outer diameter of the driving ring 4, and the outer circumference of the positioning ring 12 abuts against the inner circumference of the driving ring 4 (see fig. 2, 10 and 12 for details); the outer diameter of the reflux cover plate 3 can also be larger than the outer diameter of the driving ring 4, and the outer circumferential surface of the positioning ring 12 is abutted against the outer circumferential surface of the driving ring 4 (not shown in the figure); both cases can be selected according to the actual needs of the centrifugal compressor.
No matter how the outer diameters of the reflux cover plate 3 and the driving ring 4 are, when the reflux cover plate 3 and the driving ring 4 are assembled, the positioning ring 12 needs to be adjusted through structures such as a first screw 15, a positioning shaft sleeve 14 and the like, so that the outer circumferential surface of the positioning ring is abutted against the circumferential surface of the driving ring 4, and the smooth and stable rotation of the driving ring 4 is ensured; the specific adjustment principle is as follows (described by taking the scheme that the outer diameter of the reflux cover plate 3 is smaller than the outer diameter of the driving ring 4 as an example):
The sliding bearing 13 is knocked into the positioning ring 12, the positioning shaft sleeve 14 penetrates into the sliding bearing 13, the shaft shoulder of the positioning shaft sleeve is attached to one end face of the sliding bearing 13, and the first screw 15 penetrates through the positioning shaft sleeve 14 to form the adjusting and positioning structure;
Next, the first screw 15 is screwed into the screw hole 32 on the reflow cover plate 3, but the first screw 15 is not screwed; at this time, through the adjustment gap 16 between the first screw 15 and the positioning shaft sleeve 14, the positioning shaft sleeve 14 is manually moved, the positioning shaft sleeve 14 drives the positioning ring 12 to move, the outer circumferential surface of the positioning ring 12 can be propped against the inner circumferential surface of the driving ring 4, the first screw 15 of the three adjusting positioning structures is slowly screwed down until the first screw 15 cannot be continuously screwed down, at this time, one end of the positioning shaft sleeve 14 abuts against the nail head of the first screw 15, the other end abuts against the reflector cover plate 3, the positioning shaft sleeve 14 is fixed on the reflector cover plate 3, positioning of the positioning ring 12 is achieved, and accordingly, the driving ring 4 can rotate along the outer circumferential surface of the positioning ring 12 smoothly.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (6)
1. The utility model provides a guide vane adjusts location structure which characterized in that: the guide vane is connected with a driving arm, one end of the driving arm is rotatably arranged on the reflux cover plate, and the other end of the driving arm is arranged on the driving ring in a relatively movable manner; the driving ring is driven to rotate to drive the other end of the driving arm and the guide vane to rotate by taking one end of the driving arm as a circle center;
The adjusting and positioning structure comprises at least three positioning rings which are uniformly distributed on the periphery of the reflector cover plate, a positioning shaft sleeve is rotatably connected in the positioning rings through a sliding bearing, and the positioning shaft sleeve is fixedly connected with the reflector cover plate through a first screw;
An adjusting gap is formed between the first screw and the positioning shaft sleeve, and the positioning ring moves in the adjusting gap range, so that the outer circumferential surface of the positioning ring abuts against the inner circumferential surface or the outer circumferential surface of the driving ring.
2. The guide vane adjustment positioning structure of claim 1, wherein: screw holes are formed in the reflector cover plate corresponding to the first screws, the first screws are tightly matched with the screw holes, two end faces of the positioning shaft sleeve respectively abut against the nail heads of the first screws and the reflector cover plate, and the positioning ring is positioned on the reflector cover plate.
3. The guide vane adjustment positioning structure of claim 1, wherein: the driving arm is characterized in that a round hole is formed in one end of the driving arm, and the shaft rod of the guide vane sequentially penetrates through the first mounting hole in the reflux cover plate, the round hole and the driving pressing plate on the back of the driving arm and is detachably connected with the second screw.
4. The guide vane adjustment positioning structure of claim 1, wherein: the other end of the driving arm is provided with a waist-shaped hole, a movable pin shaft is arranged in the waist-shaped hole, and the movable pin shaft sequentially penetrates through a second mounting hole on the driving ring and the waist-shaped hole and is detachably connected with a check ring on the back surface of the driving ring; the driving ring drives the other end of the driving arm and the blades to rotate by taking one end of the driving arm as a circle center through the movable pin shaft, and the other end of the driving arm and the movable pin shaft move relatively along the track of the waist-shaped hole.
5. The guide vane adjustment positioning structure of claim 1, wherein: the driving ring is driven to rotate by a transmission mechanism, the transmission mechanism comprises a driving plate arranged on the driving ring, a cylinder is arranged on the driving plate, a driving shifting fork is arranged outside the cylinder, the driving shifting fork is driven by a motor, and the driving ring is driven to rotate by the cylinder;
the driving shifting fork is provided with a U-shaped opening towards the driving ring, and the cylinder is rotatably arranged in the U-shaped opening and moves relative to the driving shifting fork along the track of the U-shaped opening.
6. The guide vane adjustment positioning structure of claim 5, wherein: the driving shifting fork is vertically connected to a driving shaft of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323309704.0U CN221423556U (en) | 2023-12-06 | 2023-12-06 | Guide vane adjusting and positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323309704.0U CN221423556U (en) | 2023-12-06 | 2023-12-06 | Guide vane adjusting and positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221423556U true CN221423556U (en) | 2024-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323309704.0U Active CN221423556U (en) | 2023-12-06 | 2023-12-06 | Guide vane adjusting and positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221423556U (en) |
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2023
- 2023-12-06 CN CN202323309704.0U patent/CN221423556U/en active Active
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