CN109046984B - Guide vane angle linkage adjusting device - Google Patents
Guide vane angle linkage adjusting device Download PDFInfo
- Publication number
- CN109046984B CN109046984B CN201810929852.7A CN201810929852A CN109046984B CN 109046984 B CN109046984 B CN 109046984B CN 201810929852 A CN201810929852 A CN 201810929852A CN 109046984 B CN109046984 B CN 109046984B
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- Prior art keywords
- guide vane
- rotating shaft
- guide
- flange
- adjusting device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The technology relates to the field of mining machinery, and provides a mining machinery accessory, which is a guide vane angle adjusting device, and the guide vane angle adjusting device can conveniently adjust the guide vane angle in a linkage way once, and the angle consistency of the guide vane after adjustment is good; the guide vane angle linkage adjusting device comprises a guide vane assembly, wherein the guide vane assembly comprises guide vanes and guide vane brackets; the guide vane comprises a rotating shaft and a straight plate fixedly connected to the rotating shaft along the axial direction, and the rotating shaft is arranged on the upper flange and the lower flange in a swinging way; the shaft head part of the rotating shaft protruding out of the upper flange is sequentially provided with a connecting part, a supporting part, an adjusting part and a locking part from bottom to top, and the adjusting part is provided with a chord tangent plane which is symmetrical relative to the shaft tangent plane of the rotating shaft; the wind turbine further comprises a top flange with the diameter larger than that of the upper flange, and connecting plates which are equal to the number of the guide vanes, are uniformly distributed along the circumferential direction of the top flange and are arranged on the top flange in a swinging mode, and are movably arranged on chord tangent planes of the corresponding rotating shafts.
Description
Technical Field
The technology relates to the field of mining machinery, and provides a mining machinery accessory, which is a guide vane angle adjusting device.
Background
The guide vanes are important parts in the coal mill powder separator, and are arranged in such a way that a plurality of guide vanes are uniformly distributed on the guide vane support along the circumferential direction to form a guide vane assembly, the guide vane assembly is fixedly connected in the frame of the coal mill powder separator, and the guide vane assembly is collinear with the axis of the rotor.
The guide vane support mainly comprises a group of flanges which are arranged in parallel, the intersection point of the axis of the rotating shaft of each guide vane and the flange is a node of the rotating shaft and the flange, the circle determined by each node on the plane determined by the same flange is the pitch circle of the guide vane, and the included angle between the working surface of the single guide vane and the radial direction of the pitch circle on the node is the guide vane angle, and the value is the guide vane angle. In design, the guide vane angles of the guide vanes are the same, and correspondingly, the included angles between every two adjacent guide vanes are the same.
The angle of the guide vane is an important parameter of the coal mill powder concentrator, and the air suction flow area is changed by changing the angle of the guide vane of the suction inlet so as to change the air inflow, thereby realizing energy control. The main functions of the angle of the guide vane are: 1. guiding wind and guiding wind direction; 2. uniform air quantity; 3. changing the tangential velocity of the airflow, and enabling wind to rotate under the action of the guide vane to form vortex; 4. adjusting the fineness of the finished product; 5. the stability of the equipment is improved.
In production practice, 36 guide vanes are adopted, and the included angles among the guide vanes are between 10 degrees and 35 degrees.
In the prior art, regarding the angle of the guide vane, the connection arrangement mode of the guide vane and the guide vane bracket is as follows: 1. the guide vane is fixedly connected to the guide vane bracket at a fixed value by an unadjustable guide vane angle, and the guide vane can be replaced only in a whole group when the guide vane angle needs to be adjusted, so that the disassembly is difficult, and time and labor are wasted; 2. the single-piece type adjustment, the swing of the guide vane is arranged on the guide vane bracket, and because the number of the guide vanes is large, the adjustment of the angle of the guide vane wheel takes a long time, so that the angle of the guide vane cannot be adjusted in real time, and the angle consistency of the guide vane after adjustment is poor, therefore, the fineness of the finished product is not easy to control, the quality of the pulverized coal is difficult to reach the kiln standard, and the economic benefit is poor; 3. the guide vane is arranged on the guide vane bracket in a swinging way, the electronic control system controls the stepping motor or the servo motor to drive the guide vane rotating shaft to rotate so as to realize the guide vane angle linkage adjustment, and the adjustment mode can realize the guide vane angle linkage adjustment, but has higher manufacturing cost, and in addition, the reliability is poorer due to the influence of severe working conditions.
Disclosure of Invention
The technical aim is to provide a guide vane angle adjusting device, the guide vane angle adjusting device can be used for conveniently adjusting the guide vane angle at one time, and the angle consistency of the guide vane after adjustment is good.
The aim of the technology is realized by the following technical scheme:
the guide vane angle linkage adjusting device comprises a guide vane assembly fixedly connected to a frame, wherein the guide vane assembly comprises guide vanes and guide vane supports, each guide vane support at least comprises an upper flange positioned above and a lower flange positioned below and parallel to the upper flange, and a group of guide vanes are uniformly distributed along the circumferential direction of the guide vane supports and are arranged on the guide vane supports in a swinging manner; the guide vane comprises a rotating shaft and a straight plate fixedly connected to the rotating shaft along the axial direction, and the rotating shaft is arranged on the upper flange and the lower flange in a swinging way; the shaft head part of the rotating shaft protruding out of the upper flange is sequentially provided with a connecting part for connecting the guide vane assembly with the frame from bottom to top, a supporting part for providing fixed support for the connection by coacting with the upper flange when the guide vane assembly is connected with the frame, an adjusting part for applying torque to the rotating shaft to enable the rotating shaft to rotate and a locking part for applying axial tension to the rotating shaft, wherein the adjusting part is provided with a chord tangent plane symmetrical about the axial tangent plane of the rotating shaft; the wind turbine further comprises a top flange with the diameter larger than that of the upper flange, and connecting plates which are equal to the number of the guide vanes, are uniformly distributed along the circumferential direction of the top flange and are arranged on the top flange in a swinging mode, and are movably arranged on chord tangent planes of the corresponding rotating shafts.
The beneficial effects of the technology are as follows:
when in use, the guide vane angle linkage adjusting device is fixedly connected in the frame through the connecting part. When the angle of the guide vane needs to be adjusted, the locking part is unlocked to enable the rotating shaft to rotate freely; using a tool, applying tangential force to the connecting plates (one or more active connecting plates), then rotating the active connecting plates, applying torque to the adjusting part, rotating the rotating shaft, sliding the active connecting plates on the adjusting part, and changing the angle of the guide vane; meanwhile, as the positions of the rotating shafts are fixed, the driving connecting plates exert acting force on the top flange to enable the top flange to generate angular displacement, so that other connecting plates (driven connecting plates) are driven to synchronously, co-directionally and co-angularly rotate to apply torque to the adjusting parts on the corresponding rotating shafts, and the other rotating shafts synchronously, co-directionally and co-angularly rotate to realize linkage adjustment of the angles of the guide vanes; after the angle adjustment of the guide vane is finished, the locking part is locked.
The guide vane angle linkage adjusting device can conveniently and simultaneously adjust the guide vane angle in a linkage way, and the adjusted guide vane angle is good in consistency.
As an improvement to the technology, the guide vane angle linkage adjusting device also comprises an adjusting device for applying torque to the rotating shaft, wherein the adjusting device comprises a connecting plate and a handle fixedly connected to the outer end of the connecting plate, and a fixed seat fixedly connected to the frame; the adjusting device is arranged on the fixing seat in a swinging way.
The handle is provided with a guide groove, the adjusting device is arranged on the fixed seat in a guide swinging way by taking a connecting point of the connecting plate and the upper flange as a movable swinging center and a guide rail sliding block pair formed by the guide groove and the fixed seat as a guide; the fixing seat is provided with a locking device for locking the adjusting device at a target position, and the guide groove is also provided with a dial.
The number of the adjusting devices is three, and the three adjusting devices are uniformly distributed along the circumferential direction of the top flange.
The improvement can directly adjust the angle of the guide vane by using the handle, and is convenient to use. The dial is arranged, so that the change of the angle of the guide vane is more visual when the angle of the guide vane is regulated. The fixing seat is arranged, so that the adjusting device rotates stably, and the use is facilitated. By arranging the three adjusting devices, the hysteresis phenomenon caused by manufacturing errors and/or assembly errors can be effectively eliminated, and the adjusting accuracy is high.
As a further improvement of the technology, a shaft sleeve is rotatably arranged on the supporting part, and a lubricating and sealing device is arranged between the shaft sleeve and the supporting part.
The lubricating and sealing device is arranged, so that the device can adapt to the severe working condition of the coal mill powder concentrator and ensure that the rotating shaft can flexibly rotate without clamping stagnation.
As a further improvement of the technology, cotter pins for preventing the rotating shaft from separating from the lower flange are arranged below the upper flange and the lower flange of the rotating shaft.
Drawings
FIG. 1 is a schematic view of a guide vane angle linkage adjustment device.
Fig. 2 is a view in the a direction of fig. 1.
Fig. 3 is a partial view of fig. 1.
Fig. 4 is a partially disassembled view of fig. 1.
Fig. 5 is a B-B view rotation of fig. 2.
Fig. 6 is a schematic structural view of a rotating shaft to which a straight plate is fixedly attached.
Fig. 7 is a top view of fig. 6.
Fig. 8 is a schematic structural view of the handle.
FIG. 9 is a schematic view of a structure of a guide vane support.
Fig. 10 is an axial sectional schematic view of the intermediate support bar.
Description of the embodiments
The present technology is further described below with reference to the accompanying drawings:
referring to fig. 1-5, a guide vane angle linkage adjusting device comprises a guide vane assembly fixedly connected to a frame, wherein the guide vane assembly comprises guide vanes and a guide vane bracket, the guide vane bracket at least comprises an upper flange positioned above and a lower flange positioned below and parallel to the upper flange, and a group of guide vanes are uniformly distributed along the circumferential direction of the guide vane bracket and are arranged on the guide vane bracket in a swinging manner; the guide vane comprises a rotating shaft and a straight plate fixedly connected to the rotating shaft along the axial direction, and the rotating shaft is arranged on the upper flange and the lower flange in a swinging way; the shaft head part of the rotating shaft protruding out of the upper flange is sequentially provided with a connecting part for connecting the guide vane assembly with the frame from bottom to top, a supporting part for providing fixed support for the connection by coacting with the upper flange when the guide vane assembly is connected with the frame, an adjusting part for applying torque to the rotating shaft to enable the rotating shaft to rotate and a locking part for applying axial tension to the rotating shaft, wherein the adjusting part is provided with a chord tangent plane symmetrical about the axial tangent plane; the wind turbine further comprises a top flange with the diameter larger than that of the upper flange, and connecting plates which are equal to the number of the guide vanes, are uniformly distributed along the circumferential direction of the top flange and are arranged on the top flange in a swinging mode, and are movably arranged on chord tangent planes of the corresponding rotating shafts.
The coal mill powder concentrator has larger volume, correspondingly, the guide vane assembly has larger volume, and the guide vane bracket adopts a split structure and is formed by fixedly connecting the same four parts in sequence. Referring to fig. 9 again, in order to increase stability of the guide vane support, the guide vane support includes an upper flange 1, a middle flange 3, a lower flange 2 and middle support rods 813 and 814 which are arranged in parallel from top to bottom, the upper flange 1 and the middle flange 3 are respectively and fixedly connected to two ends of the middle support rod 813, the middle flange 3 and the lower flange 2 are respectively and fixedly connected to two ends of the middle support rod 814, and axes of the corresponding middle support rods 813 and 814 are collinear.
Referring to fig. 10 again, the axial sections of the intermediate support bars 813, 814 are fan rings, the central angle of which is 110 °, and they are usually cut by seamless pipe blanking.
The upper flange 1 is formed by sequentially and fixedly connecting a segmented upper flange 101 and an upper flange fixing plate 102 after being overlapped, the middle flange 3 is formed by sequentially and fixedly connecting a segmented middle flange 301 and a middle flange fixing plate 302 after being overlapped, and the lower flange is formed by sequentially and fixedly connecting a segmented lower flange 201. Waist holes with inward openings are formed on the upper flange 101 and the middle flange 301 of the section, and are surrounded by waist holes with outward openings formed on the upper flange fixing plate 102 and the middle flange fixing plate 302, and round holes are formed on the lower flange 201 of the section for arranging the rotating shaft 811.
Sequentially fastening the segmented lower flanges 201 with the lap plates 202 using bolts; the upper flange 101 of the segment and the middle flange 301 of the segment are sequentially fastened with the overlap plates 303 using bolts, respectively.
Obviously, the top points of the annular axial sections of the middle support rods 813 and 814 are positioned on the axes of the round holes of the upper flange 1, the middle flange 3 and the lower flange 2.
Referring again to fig. 6 and 7, the guide vane 8 includes a rotation shaft 811 and a straight plate fixedly coupled to the rotation shaft 811.
The rotating shaft 811 is rotatably arranged in the round holes of the upper flange 1, the middle flange 3 and the lower flange 2. The shaft head portion of the rotating shaft 811 protruding outside the upper flange 1 is sequentially provided with a connecting portion 808, a supporting portion 805, an adjusting portion 804 and a locking portion 801 from bottom to top.
The connection portion 808 is used for connecting the guide vane assembly with the frame 10, the supporting portion 805 is used for providing fixed support for the connection in cooperation with the upper flange 1 when connecting the guide vane assembly with the frame 10, the adjusting portion 804 is used for applying torque to the rotating shaft 811 to rotate the rotating shaft 811, and the locking portion 801 is used for applying axial tension to the rotating shaft 811.
The locking portion 801 is provided with an external thread 815, and the external thread 815 is provided with a nut 802.
The adjustment portion 804 is provided with a chord plane 816 symmetrical about the axial plane of the rotation shaft 811, and the adjustment portion 804 is formed as a slider by the two opposing chord planes 816 (referred to as "milling" in the industry).
A boss 807 is rotatably provided on the support portion 805. A sealing groove 817 is arranged on the supporting part 805, an O-shaped sealing ring 806 is arranged in the sealing groove 817 and between the shaft sleeve 807 and the supporting part 805, and lubricating grease is filled in a cavity in the shaft sleeve 807 so as to adapt to the severe working condition of the coal mill powder concentrator, and the rotating shaft 811 can flexibly rotate without clamping stagnation.
Cotter pins (not shown) for preventing the rotation shaft 811 from being separated from the lower flange 2 are also provided on the shaft tail 812 of the rotation shaft 811 and under the lower flange.
Two sections of straight plates 809 and 810 made of wear-resistant materials are fixedly connected to the rotating shafts 811 between the upper flange 1 and the middle flange 3 and between the middle flange 3 and the lower flange 2 along the axial direction of the rotating shafts 811, and the same side surfaces of the two sections of straight plates 809 and 810 are coplanar.
In this example, there are 36 guide vanes.
Referring to fig. 8, the connecting plate 5 has a plate structure, a kidney-shaped hole 707 is formed at one end of the connecting plate 5 to match two opposite chord cut surfaces 816, and a pin hole 705 is formed at the other end of the connecting plate 5.
The top flange 4 is circumferentially and uniformly provided with pin holes 401 with the same number as the guide vanes 8, the circle on the top flange 4, which is determined by the center of the pin holes 401, is the pitch circle of the top flange, and the pin holes 401 and the pin holes 705 are matched for detachably arranging the headed pins 9.
The pitch diameter of the top flange 4 is larger than the pitch diameter of the upper flange 1. Referring to fig. 1, the top flange 4 is formed by connecting two semicircular rings with a top flange connection block 6.
The connecting plate 5 is movably arranged on the adjusting part 804 by a guide rail sliding block pair consisting of a waist-shaped hole 707 and two opposite chord cut surfaces 816, and is hinged with the top flange 4 through pin holes 705 and 401 by using a head pin 9.
The adjusting device for applying torque to the rotating shaft 811 comprises a connecting plate 5 and a handle 702 fixedly connected to the outer end of the connecting plate 5, and a fixing seat 701 fixedly connected to the frame 10; the adjusting device is arranged on the fixing base 701 in a swinging way.
In fact, the connecting plate 5 and the handle 702 are integrated, the connecting plate 5 extends along the direction from the kidney-shaped hole 707 to the pin hole 705 to form the handle 702, the middle part of the handle 702 extends to two sides to form the guide plate 706, the guide plate 706 is provided with an arc-shaped guide groove 703, and the notch of the guide groove 703 is provided with a dial 704. The 0 ° score line of dial 704 coincides with the line connecting kidney-shaped aperture 707 to pin aperture 705.
The fixing base 701 is fixedly connected to the frame 10 and is disposed parallel to the rotation shaft 811. An internal thread is formed at the top end of the fixing base 701, and a locking screw 708 is disposed in the internal thread. The locking screw 708 cooperates with the fixing base 701 as a locking means for locking the adjustment device in the target position.
The adjusting device is arranged on the fixed seat 701 in a swinging manner by taking a connecting (hinging) point (namely an intersection point of the connecting plate 5 and the rotating shaft 811) of the connecting plate 5 and the upper flange 1 as a moving swinging center and taking a guide rail sliding block pair formed by the arc-shaped guide groove 703 and the fixed seat 701 as a guide.
The number of the three adjusting devices 7 is three, and the three adjusting devices are uniformly distributed along the circumferential direction of the top flange 4.
The following describes a method for using the guide vane angle linkage adjusting device with reference to the accompanying drawings.
In the illustration, when the rotor turns to be used, the guide vane angle linkage adjusting device is fixedly connected in the frame 10 through a connecting part, a locking nut 802 and a gasket 803, and is supported by an upper flange 1 and a shaft sleeve 807 on a supporting part 805; simultaneously, the fixed seat 701 is fixedly connected in the frame 10, and the locking screw 708 is locked to fix the handle 702 on the fixed seat 701.
When the guide vane assembly with 36 guide vanes is initially installed, the angle of the guide vanes is 56 degrees, and the guide vanes incline along the direction 11 of the rotor. At this time, the included angle between every two adjacent guide vanes 8 is 10 degrees, and the handle is positioned on the 0 degree line of the dial 704.
When the angle of the guide vane needs to be adjusted, the unlocking nut 802 enables the rotating shaft 811 to rotate freely, and the unlocking locking screw 708 enables the handle 702 to swing freely. Simultaneously, the three handles 702 are moved in the same direction and at the same angle (the angle change is shown by the dial 704) to apply tangential force to the connecting plate 5 (the active connecting plate) on the adjusting device, so that the active connecting plate rotates, torque is applied to the adjusting part 804, the rotating shaft 811 rotates, the active connecting plate slides on the adjusting part 804, and the angle of the guide vane is changed; meanwhile, as the positions of the rotating shafts 811 are fixed, the driving connecting plates exert acting force on the top flange 4 to enable the top flange 4 to generate angular displacement, so that other connecting plates 5 (driven connecting plates) are driven to synchronously, co-directionally and co-angularly rotate to apply torque to the adjusting parts 804 on the corresponding rotating shafts 811, so that other rotating shafts 811 synchronously, co-directionally and co-angularly rotate, and linkage adjustment of the angles of the guide vanes is realized; after the angle adjustment of the guide vane is finished, the locking screw 708 is locked, the handle 702 is fixed on the fixed seat 701, and the locking nut 802 is used for fixedly connecting the guide vane angle linkage adjustment device in the frame 10.
The beneficial effects of the technology are as follows:
the guide vane angle linkage adjusting device with the simple structure can conveniently adjust the guide vane angle in a linkage way once, effectively avoids the phenomenon of stagnation when adjusting the guide vane angle, and has better consistency of the adjusted guide vane angle.
Claims (6)
1. The guide vane angle linkage adjusting device comprises a guide vane assembly fixedly connected to a frame, wherein the guide vane assembly comprises guide vanes and a guide vane bracket, the guide vane bracket at least comprises an upper flange positioned above and a lower flange positioned below and parallel to the upper flange, and a group of guide vanes are uniformly distributed and arranged on the guide vane bracket in a swinging way along the circumferential direction of the guide vane bracket; the shaft head part of the rotating shaft protruding out of the upper flange is sequentially provided with a connecting part for connecting the guide vane assembly with the frame from bottom to top, a supporting part for providing fixed support for the connection by coacting with the upper flange when the guide vane assembly is connected with the frame, an adjusting part for applying torque to the rotating shaft to enable the rotating shaft to rotate and a locking part for applying axial tension to the rotating shaft, wherein the adjusting part is provided with a chord tangent plane symmetrical about the axial tangent plane of the rotating shaft; the wind turbine further comprises a top flange with the diameter larger than that of the upper flange, and connecting plates which are equal to the number of the guide vanes, are uniformly distributed along the circumferential direction of the top flange and are arranged on the top flange in a swinging mode, and are movably arranged on chord tangent planes of the corresponding rotating shafts.
2. The guide vane angle linkage adjusting device according to claim 1, further comprising an adjusting device for applying torque to the rotating shaft, wherein the adjusting device comprises a connecting plate and a handle fixedly connected to the outer end of the connecting plate, and a fixing seat fixedly connected to the frame; the adjusting device is arranged on the fixing seat in a swinging way.
3. The guide vane angle linkage adjusting device according to claim 2, wherein the handle is provided with a guide groove, the adjusting device is arranged on the fixed seat in a guide swinging way by taking a connection point of the connecting plate and the upper flange as a movable swinging center and a guide rail sliding block pair formed by the guide groove and the fixed seat as a guide swinging way; the fixing seat is provided with a locking device for locking the adjusting device at a target position, and the guide groove is also provided with a dial.
4. A guide vane angle linkage adjustment device according to claim 2 or 3, wherein three adjustment devices are provided, and the three adjustment devices are uniformly distributed along the circumferential direction of the top flange.
5. The guide vane angle linkage adjustment device according to claim 1, wherein a shaft sleeve is rotatably provided on the support portion, and a lubrication and sealing device is provided between the shaft sleeve and the support portion.
6. The guide vane angle linkage adjustment device according to claim 1, wherein cotter pins for preventing the rotating shaft from being separated from the lower flange are further arranged below the upper flange and the lower flange of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929852.7A CN109046984B (en) | 2018-08-15 | 2018-08-15 | Guide vane angle linkage adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929852.7A CN109046984B (en) | 2018-08-15 | 2018-08-15 | Guide vane angle linkage adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109046984A CN109046984A (en) | 2018-12-21 |
| CN109046984B true CN109046984B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810929852.7A Active CN109046984B (en) | 2018-08-15 | 2018-08-15 | Guide vane angle linkage adjusting device |
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| CN (1) | CN109046984B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230679A (en) * | 2019-05-17 | 2019-09-13 | 陕西科技大学 | A kind of fluid torque-converter angle adjustment guiding device |
| CN112387597A (en) * | 2020-11-18 | 2021-02-23 | 江苏绿都环境工程有限公司 | Intelligent powder concentrator capable of preventing abrasion and material blockage |
| CN115289785A (en) * | 2022-08-04 | 2022-11-04 | 黄石市天达热能科技股份有限公司 | Method for drying papermaking white mud |
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| US6409108B1 (en) * | 2000-12-22 | 2002-06-25 | Sure Alloy Steel Corporation | Damage-resistant deflector vane |
| CN201603689U (en) * | 2009-12-29 | 2010-10-13 | 洛阳宇航重工机械有限公司 | Efficient powder concentrator matched with pulverizing mill for processing electrolytic crusted blocks |
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| Publication number | Publication date |
|---|---|
| CN109046984A (en) | 2018-12-21 |
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