CN110562479B - Blade pneumatic performance adjusting device - Google Patents
Blade pneumatic performance adjusting device Download PDFInfo
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- CN110562479B CN110562479B CN201910690659.7A CN201910690659A CN110562479B CN 110562479 B CN110562479 B CN 110562479B CN 201910690659 A CN201910690659 A CN 201910690659A CN 110562479 B CN110562479 B CN 110562479B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
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- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Aviation & Aerospace Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The embodiment of the invention provides a blade pneumatic performance adjusting device, wherein a scale assembly of the device comprises a dial and a pointer; one end of the pointer is fixedly arranged on the rotating piece; the pointer can rotate relative to the dial; the rotating piece is arranged on the bracket assembly and can rotate along a preset track relative to the bracket assembly; the first clamping component is arranged on the rotating piece; the second clamping assembly is arranged on the bracket assembly; the first clamping assembly and the second clamping assembly are both used for clamping the blade; the first clamping assembly is used for clamping the blade, and drives the rotating piece to move along a preset track in the process of clamping the blade, and drives the pointer to rotate relative to the dial in the process of moving along the preset track; the second adjustment assembly is mounted on the bracket assembly. The pneumatic performance of the blade can be adjusted by using the device provided by the embodiment of the invention, so that the difficulty in adjusting the pneumatic performance of the blade can be reduced.
Description
Technical Field
The invention relates to the technical field of aircrafts, in particular to a blade pneumatic performance adjusting device.
Background
The blade is the core of helicopter power device, and the pneumatic performance of blade has very big influence to the vibration of rotor, for example, if each blade pneumatic performance of installing on the rotor is inconsistent, can lead to rotor vibration frequency high, and rotor vibration frequency is too high can seriously influence passenger's riding quality, structural component's fatigue life and the normal work of airborne equipment.
The existing implementation mode for adjusting the pneumatic performance of the blade is as follows: firstly, selecting a blade meeting the requirement of a reference blade from qualified blades as the reference blade, and secondly, dynamically calibrating the aerodynamic performance of a target blade by using the aerodynamic performance of the reference blade as the reference blade through a dynamic balance test bed, thereby reducing the aerodynamic performance difference of the blade caused by production and manufacturing deviation.
According to the implementation mode for adjusting the pneumatic performance of the blade, the reference blade is one blade which is selected from a certain number of qualified blades and meets the requirement of the reference blade, so that the reference blade can only be ensured to be the blade which is selected from the certain number of qualified blades and meets the requirement of the reference blade, namely, the reference blade has relativity.
In view of the above-mentioned circumstances, if there are all paddles that cannot meet the requirement of the reference paddles, a certain number of qualified paddles need to be reselected, and then the reference paddles are reselected, which results in low selection efficiency of the reference paddles, so that the difficulty in performing aerodynamic performance adjustment on the paddles is high.
Disclosure of Invention
The embodiment of the invention aims to provide a blade pneumatic performance adjusting device which can reduce the difficulty of adjusting the pneumatic performance of a blade.
The specific technical scheme is as follows:
A blade aerodynamic performance adjustment device, the blade aerodynamic performance adjustment device comprising: the device comprises a bracket assembly, a rotating piece, a scale assembly, a first adjusting assembly, a second adjusting assembly, a first clamping assembly and a second clamping assembly;
The scale assembly comprises a dial and a pointer; one end of the pointer is fixedly arranged on the rotating piece; the pointer can rotate relative to the dial;
the rotating piece is arranged on the bracket assembly and can rotate relative to the bracket assembly along a preset track;
The first clamping assembly is arranged on the rotating piece; the second clamping assembly is mounted on the bracket assembly; the first clamping assembly and the second clamping assembly are both used for clamping the blade;
the first adjusting component is used for enabling the first clamping component to clamp the blade, the first clamping component drives the rotating piece to rotate along the preset track in the process of clamping the blade, and the rotating piece drives the pointer to rotate relative to the dial in the process of rotating along the preset track;
the second adjusting assembly is mounted on the support assembly and is used for enabling the second clamping assembly to clamp the blade.
Further, the rotating member comprises a carriage comprising a first structure and two second structures, wherein,
The first structure is L-shaped plate structure, first preset position department of the first perpendicular board of first structure is equipped with two at least through-holes, as first through-hole, on the first edge with the direction that first perpendicular board is opposite to is equipped with perpendicularly the second perpendicular board of the horizontal plate of first structure, first edge is: edges of the horizontal plates of the first structure that are not adjacent to the first vertical plates;
The second structure is in a cylindrical structure, and a convex edge coplanar with the end surface is arranged on one end surface of the second structure along the circumferential direction; a trapezoid groove is formed in the side face of the second structure; the cross section of the trapezoid groove is as follows: the bottom edge of the trapezoid is in a trapezoid shape from large to small along the radial direction of the second structure, an L-shaped groove is formed in the bottom surface of the trapezoid groove, the horizontal groove edge of the L-shaped groove is collinear with the second edge of the bottom surface of the trapezoid groove, a rectangular groove is formed in a second preset position of the first surface, the vertical groove surface of the L-shaped groove is parallel to the bottom surface of the trapezoid groove and coplanar with the horizontal groove surface, the second edge is a horizontal groove edge opposite to the second surface in the L-shaped groove, and the second surface is a vertical groove surface parallel to the first surface in the L-shaped groove; the length of the trapezoid groove and the length of the rectangular groove are the same as the length of the second structure;
The two second structures are respectively and vertically fixed at the two ends of the first structure, the convex edges of the two second structures are opposite, the bottom surface of the trapezoid groove is coplanar with the plate surface of the second vertical plate, and the vertical groove surface of the L-shaped groove where the rectangular groove is located is coplanar with the plate surface of the horizontal plate of the first structure.
Further, the rotating member further comprises two fixed disks,
The fixed disc is of a circular plate-shaped structure, and is provided with a notch serving as a first notch;
One fixed disc corresponds to one second structure, and one fixed disc is sleeved on the outer side surface of one second structure.
Further, the first adjusting component comprises a connecting block and a first handle,
The connecting block is of a block-shaped structure with an L-shaped section, a through hole is formed in the center of the horizontal section of the connecting block along the vertical section direction of the connecting block and is used as a second through hole, and internal threads with preset lengths are arranged in the second through hole;
The first handle is in a rod-shaped structure, and one end of the first handle is provided with external threads matched with the internal threads;
The horizontal segment of connecting block fixed mounting is in on the first vertical plate, the horizontal segment of connecting block with the horizontal plate of first structure is relative.
Further, the first clamping component comprises a first sliding block and two first connecting rods,
The first sliding block is of an L-shaped plate structure, and at least two kidney-shaped holes are formed in a vertical plate of the first sliding block;
a first connecting rod corresponds to a kidney-shaped hole and a first through hole, and the first connecting rod is arranged in the kidney-shaped hole and the first through hole.
Further, the first clamping assembly also comprises a second sliding block,
The second sliding block is of a plate-shaped structure;
the second sliding block is fixedly arranged on the horizontal plate surface of the L-shaped groove.
Further, the bracket component comprises two fixing frames and a plurality of fixing shafts,
The fixing frame is of a strip-shaped plate structure, a through hole is formed in the plate surface at one end of the fixing frame and is used as a third through hole, a notch along the length direction of the fixing frame is formed in the plate surface at the other end of the fixing frame and is used as a second notch, and the second notch is communicated with the third through hole;
the fixed shafts are arranged between the two fixed frames and fixedly connected with the fixed frames.
Further, the second clamping component comprises two supporting plates, a first supporting frame, a second supporting frame, two second connecting rods and two third connecting rods,
The support plate comprises two ear plates and a plate-shaped structure, and the ear plates are respectively and fixedly arranged at two ends of the plate-shaped structure;
The first support frame comprises a third structure and a fourth structure, the third structure is of a strip-shaped platy structure with one end of the plate surface bent, a through hole is formed in the plate surface of the other end of the third structure and used as a fourth through hole, and a hollow cylinder structure penetrating through the plate surface is arranged at a second preset position of the third structure; the fourth structure is a rod structure with a polygonal section, and the side surface of the fourth structure is vertical and fixedly connected to the bending end of the third structure;
The second support frame comprises a fifth structure and a sixth structure, the fifth structure is of an H-shaped rod piece structure, at least two pairs of through holes are formed in a rod piece at one side end part of a horizontal section in the fifth structure, the sixth structure is of a polygonal prism structure as a fifth through hole, and the end part at the other side of the horizontal section in the fifth structure is fixedly connected to one side surface of the sixth structure;
The two second connecting rods are respectively arranged in the hollow cylinder structure and the third through hole, are fixedly arranged on the two fixing frames and are positioned between the two fixing frames, and the first supporting frame can rotate relative to the fixing frames;
the two third connecting rods are respectively arranged in the symmetrical fifth through holes, are fixedly arranged on the two fixing frames and are positioned between the two fixing frames, the second supporting frame can rotate relative to the fixing frames, and the plate surface of the second supporting frame is opposite to the plate surface of the first supporting frame in parallel;
The two backup pad passes through the otic placode is installed respectively two on the mount, and one the platelike structure of backup pad is close to the tip that first support frame was equipped with the fourth through-hole, just the tip that first support frame was equipped with the fourth through-hole is arranged in first face with between the second adjustment subassembly, two the platelike structure of backup pad is parallel in opposite directions, the backup pad can be relative the mount rotates, first face is in the face that is located the same side with the otic placode in the backup pad.
Further, the second adjusting component comprises a handle seat and a second handle,
The second handle is arranged on the handle seat and can rotate relative to the handle seat;
The handle seat is fixedly arranged on the end parts of the two fixing frames and positioned at the end part of the first supporting frame, which is provided with a fourth through hole, and the end part of the first supporting frame, which is provided with the fourth through hole, is arranged between the first plate surface and the handle seat, and the handle seat can press the first supporting frame to move.
Further, a cylinder is arranged on a first mounting surface of the fixing frame, and the first mounting surface is a mounting surface on which the fixing frame and the supporting plate are mounted;
The end parts of the ear plates of one supporting plate are respectively provided with a through hole which is used as a sixth through hole;
one of the cylinders corresponds to one of the sixth through holes, and one of the cylinders is placed in one of the sixth through holes.
Further, a U-shaped groove is formed in the cylindrical surface of the second structure, and the U-shaped groove is arranged on the inner circular ring of the fixed disc.
The embodiment of the invention provides a blade pneumatic performance adjusting device, which comprises: the scale assembly comprises a dial and a pointer; one end of the pointer is fixedly arranged on the rotating piece; the pointer can rotate relative to the dial; the rotating piece is arranged on the bracket assembly and can rotate along a preset track relative to the bracket assembly; the first clamping component is arranged on the rotating piece; the second clamping assembly is arranged on the bracket assembly; the first clamping assembly and the second clamping assembly are both used for clamping the blade; the first clamping assembly is used for clamping the blade, and drives the rotating piece to move along a preset track in the process of clamping the blade, and drives the pointer to rotate relative to the dial in the process of moving along the preset track; the second adjustment assembly is installed on the support assembly, and the second adjustment assembly is used for enabling the second clamping assembly to clamp the blade. Compared with the implementation mode related to the prior art, the pneumatic performance of the blade is adjusted by using the device provided by the embodiment of the invention, a large number of blades are not required to be processed, the blade with the largest characteristic distribution probability is not required to be selected from the large number of blades, and the pneumatic performance of the blade to be adjusted is only required to be directly adjusted by using the device provided by the embodiment of the invention, so that the difficulty in adjusting the pneumatic performance of the blade can be reduced compared with the implementation mode related to the prior art. Of course, it is not necessary for any one product or method of practicing the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural diagram of a sliding frame according to the embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a first slider according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a connection block according to the embodiment of the present invention;
FIG. 4 is an exploded view of a blade pneumatic performance adjustment apparatus according to an embodiment of the present invention;
FIG. 5 is a front view of a portion of a blade pneumatic performance adjustment apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a blade pneumatic performance adjusting device according to an embodiment of the present invention.
Wherein, 1-paddle, 2-calibrated scale, 3-pointer, 4-carriage, 5-fixed disk, 6-connecting block, 7-first handle, 8-first slider, 9-second slider, 10-mount, 11-fixed axle, 12-backup pad, 13-first support frame, 14-second support frame, 15-handle seat, 16-second handle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a blade pneumatic performance adjusting device, and the pneumatic performance adjusting device provided by the embodiment of the invention is described in detail below with reference to fig. 1-6.
The blade pneumatic performance adjusting device comprises: the device comprises a bracket assembly, a rotating piece, a scale assembly, a first adjusting assembly, a second adjusting assembly, a first clamping assembly and a second clamping assembly;
The scale assembly comprises a dial 2 and a pointer 3; one end of the pointer 3 is fixedly arranged on the rotating piece; the pointer 3 can rotate relative to the dial 2;
The rotating piece is arranged on the bracket component and can rotate relative to the bracket component along a preset track;
The first clamping component is arranged on the rotating piece; the second clamping component is arranged on the bracket component; the first clamping assembly and the second clamping assembly are used for clamping the blade 1;
The first adjusting component is used for enabling the first clamping component to clamp the blade 1, the first clamping component drives the rotating piece to move along the preset track in the process of clamping the blade 1, and the rotating piece drives the pointer 3 to rotate relative to the dial 2 in the process of moving along the preset track;
The second clamping assembly and the second adjusting assembly are sequentially arranged on the bracket assembly; the second adjustment assembly is used to cause the second clamping assembly to clamp the blade 1.
Wherein, one end of the pointer 3 is fixedly arranged on the rotating member; the pointer 3 can rotate relative to the dial 2, that is, the pointer 3 rotates along with the rotating member, and the pointer 3 indicates the scale of the dial in the rotating process, so as to know how many values the pointer rotates, that is, how many values the rotating member rotates.
The predetermined trajectory is accomplished by a member of the bracket assembly that provides the rotation member with a predetermined trajectory, that is, if the trajectory of the member is a semicircular arc, the rotation member moves according to the semicircular arc trajectory, and if the trajectory of the member is an ellipse, the rotation member moves according to the elliptical trajectory.
It should be noted that, the first clamping assembly driving the rotating member to move along the preset track during clamping the blade 1 may be understood that the first clamping assembly has already contacted the blade and clamped the blade, and the first clamping assembly does not drive the rotating member to rotate at this time, and when the first clamping assembly contacts the blade and begins to clamp the blade 1, the first clamping assembly drives the rotating member to move along the preset track during clamping the blade 1.
The working principle of the blade pneumatic performance adjusting device is as follows:
firstly, firmly clamping the blade in a first clamping assembly and a second clamping assembly; the method comprises the following steps: the method comprises the steps that paddles are sequentially placed on a first clamping assembly and a second clamping assembly, the first adjusting assembly is adjusted, the first adjusting assembly drives the first clamping assembly to slowly contact and clamp the paddles in the first clamping assembly, at the moment, a rotating piece does not move, the second adjusting assembly is adjusted, the second adjusting assembly presses the second clamping assembly to clamp the paddles, and at the moment, the paddles are ensured to be stable relative to a support assembly;
secondly, the pneumatic performance of the blade is adjusted, specifically: and the first adjusting component is continuously adjusted, and at the moment, the rotating piece is driven to move along a preset track in the process of continuously clamping the blade in the first clamping component, so that the rotating piece drives the pointer 3 to rotate relative to the dial 2 in the process of moving along the preset track, the pointer rotation degree can be displayed on the dial, and the movement degree of the first adjusting component can also be displayed.
Therefore, the device provided by the embodiment of the invention utilizes the first adjusting component and the second adjusting component to be matched with each other, so that the first clamping component and the second clamping component clamp the blade to be adjusted, and the pneumatic performance of the clamped blade is adjusted by utilizing the first adjusting component.
In one implementation of the rotating member, the rotating member comprises a carriage 4, as shown in fig. 1, 4, the carriage 4 comprising a first structure and two second structures, wherein,
The first structure is an L-shaped plate structure, at least two through holes are formed in a first preset position of a first vertical plate of the first structure, the second vertical plate perpendicular to the horizontal plate is arranged in a direction opposite to the first vertical plate on a first edge as the first through holes, and the first edge is: edges of the horizontal plates of the first structure not adjacent to the first vertical plates;
The second structure is in a cylindrical structure, and a convex edge coplanar with the end surface is arranged on one end surface of the second structure along the circumferential direction; a trapezoid groove is arranged on the side surface of the second structure; the cross section of the trapezoid groove is as follows: the bottom side of the trapezoid is in a large-to-small trapezoid along the radial direction of the second structure, an L-shaped groove is formed in the bottom surface of the trapezoid groove, the horizontal groove edge of the L-shaped groove is collinear with the second edge of the bottom surface of the trapezoid groove, an L-shaped groove is formed in the bottom surface of the trapezoid groove, a rectangular groove is formed in a second preset position of a first surface, the first surface is a surface of the L-shaped groove, which is parallel to the bottom surface of the trapezoid groove and coplanar with the horizontal groove surface, the second edge is a horizontal groove edge opposite to the second surface in the L-shaped groove, and the second surface is a vertical groove surface parallel to the first surface in the L-shaped groove; the length of the trapezoid groove and the length of the rectangular groove are the same as the length of the second structure;
The two second structures are vertically and fixedly arranged at the two ends of the first structure, the convex edges of the two second structures are opposite, the bottom surface of the trapezoid groove is coplanar with the plate surface of the second vertical plate, and the vertical groove surface of the L-shaped groove where the rectangular groove is arranged is coplanar with the plate surface of the horizontal plate of the first structure.
The L-shaped groove can play a role in reducing weight, the first clamping assembly can move relative to the rotating piece in the L-shaped vertical groove, and the first clamping assembly can be positioned.
The rectangular groove can play a role in positioning and stabilizing the blade.
For weight reduction, a plurality of weight reducing holes may be provided on the first vertical plate; the second vertical plate can also be provided with a lightening hole; a recess for weight reduction may also be provided in the second structure at the centre of the second end face.
It should be noted that, one implementation manner in which the sliding frame 4 can rotate along the preset track relative to the bracket assembly is as follows: the frame assembly may be provided with a flange having a predetermined trajectory, and the side of the second structure of the carriage 4 may also move along the flange with respect to the frame assembly along the predetermined trajectory.
It can be seen that the carriage 4 is not only capable of moving along a predetermined trajectory with respect to the frame assembly, but that the carriage 4 is light in weight and simple in structure, as can be seen from the structure of the first and second structures constituting the carriage 4.
In another implementation of the rotating member, the rotating member further comprises two fixed discs 5, as shown in figure 4,
The fixed disc 5 is in a circular plate-shaped structure, and the fixed disc 5 is provided with a notch serving as a first notch;
a fixed disk 5 corresponds to a second structure, and a fixed disk 5 is sleeved on the outer side surface of the second structure.
The first notch is understood to be a notch extending through the inner ring in the holding pan 5.
In addition, the fixed disk 5 is a member for providing the predetermined track to the carriage 4, that is, the carriage 4 moves along the inner circumference of the fixed disk 5.
It should be noted that the fixed disk 5 may be a part of the rotating member or a part of the bracket assembly.
In order to enable the cylindrical surface of the second structure to stably move on the fixed disc 5, a U-shaped groove is formed in the cylindrical surface of the second structure, and the U-shaped groove is placed on the inner ring of the fixed disc 5 to enable the fixed disc 5 to slide relatively in the U-shaped groove.
It can be seen that the fixed disk 5, as a component providing the preset trajectory for the carriage 4, is not only simple in structure but also highly reliable.
Based on the structure of the carriage 4, the first adjustment assembly may comprise a connection block 6 and a first handle 7, as shown in figures 3, 4,
The connecting block 6 is in a block-shaped structure with an L-shaped section, a through hole is formed in the center of the horizontal section of the connecting block 6 along the vertical section direction of the connecting block 6 and is used as a second through hole, and the second through hole is provided with internal threads with preset length;
The first handle 7 has a rod-shaped structure, and one end of the first handle 7 is provided with an external thread matched with the internal thread;
The horizontal section of the connection block 6 is fixedly installed on the first vertical plate, and the horizontal section of the connection block 6 is opposite to the horizontal plate of the first structure.
Wherein, above-mentioned connecting block 6 and first handle pass through screw-thread fit connection, and this screw-thread fit connection is a detachable fixed connection, has advantages such as simple structure, connection reliability, easy dismounting.
It can be seen that the connection block 6 is cooperatively connected with the first handle 7, so that the first handle 7 can move along the extending direction of the internal thread in the connection block 6, and the positioning and guiding functions are achieved for the first handle 7.
In one implementation, as shown in fig. 2 and 4, the first clamping assembly includes a first slider 8 and two first connecting rods,
The first sliding block 8 is in an L-shaped plate structure, and at least two kidney-shaped holes are formed in a vertical plate of the first sliding block 8;
A first connecting rod corresponds to a waist-shaped hole and a first through hole, and the first connecting rod is arranged in the waist-shaped hole and the first through hole.
Wherein, the first connecting rod is arranged in the waist-shaped hole and the first through hole, and the first connecting rod can move back and forth in the waist-shaped hole, that is, the first sliding block 8 can move relatively to the sliding frame 4.
The first handle moves along the direction of the internal thread in the connecting block, when the end part of the first handle abuts against the end surface of the horizontal section of the first slider 8, the kidney-shaped hole of the first slider 8 moves along the first connecting rod relative to the sliding frame 4, at the moment, the sliding frame 4 does not move, but when the first slider 8 contacts the blade, the first handle continuously presses, the first slider 8 can be clamped, and the sliding frame 4 can be driven to rotate in the process of clamping the blade by the first slider 8.
It should be noted that, in order to match the length of the kidney-shaped hole, a rectangular plate structure may be added to the outer end surface of the horizontal section of the first slider 8, that is, the rectangular plate structure is fixedly connected to the surface of the first slider 8 corresponding to the blade, the thickness of the rectangular plate structure is related to the length of the kidney-shaped hole, when the first slider 8 does not contact the blade, the first connecting rod already slides to the end of the kidney-shaped hole, and at this time, if the first handle is pressed again, the first slider 8 drives the sliding frame 4 to rotate, so in order to avoid the above situation, a rectangular plate structure with a certain thickness may be designed as a gasket.
Therefore, the first slider 8 and the first connecting rod which form the first clamping assembly have simple structure, convenient assembly and disassembly and flexible matching of the first slider 8 and the first connecting rod.
In another implementation manner, the first clamping assembly further comprises a second slider 9, and the second slider 9 has a plate-shaped structure; as shown in fig. 4 and 5
The second sliding block 9 is fixedly arranged on the horizontal plate surface of the L-shaped groove; the second sliding block 9 is used for supporting the paddle arranged in the rectangular groove to reach the horizontal;
Wherein the preset thickness of the second slider 9 is related to the position of the rectangular groove in the L-shaped groove, that is, the thickness of the second slider 9 is equal to the shortest distance from the surface of the rectangular groove to the horizontal groove in the L-shaped groove.
It can be seen that the second slider 9 can function both as a support for the paddles and also can be flexibly loaded and unloaded.
In one implementation, the bracket assembly includes two fixed frames 10 and a plurality of fixed shafts 11,
The fixing frame 10 has a bar-shaped plate structure, a through hole is formed in a plate surface at one end of the fixing frame 10, a notch along the length direction of the fixing frame 10 is formed in a plate surface at the other end of the fixing frame 10 as a third through hole, and the second notch is communicated with the second through hole;
The fixing shafts 11 are disposed between the two fixing frames 10 and fixedly connected to the fixing frames 10.
Wherein, the setting of second through-hole not only can reduce the weight, but also is convenient for the placing of paddle.
The second notch is also arranged for placing the blade, so that the blade can be clamped conveniently.
Therefore, the fixed shaft is arranged between the two plate-shaped fixing frames in the implementation mode, so that the weight of the bracket assembly is greatly reduced, and meanwhile, the operation condition of each part between the fixing frames is convenient to master.
Based on the above-described structure of the fixing frame and the fixing shaft, as shown in fig. 4 and 5, the second clamping assembly may include two support plates 12, a first support frame 13, a second support frame 14, two second connection rods and two third connection rods,
The supporting plate 12 comprises two ear plates and a plate-shaped structure, and the ear plates are respectively and fixedly arranged at two ends of the plate-shaped structure;
The first supporting frame 13 includes a third structure and a fourth structure, the third structure has a strip-shaped plate structure with a curved plate surface at one end, a through hole is formed in the plate surface at the other end, and a hollow cylinder structure penetrating through the plate surface is formed at a second preset position of the third structure as a fourth through hole; the fourth structure is a rod structure with a polygonal section, and the side surface of the fourth structure is vertical and fixedly connected with the bending end of the third structure; as shown in fig. 4, the fourth structure is laterally fixedly connected to the curved end of the third structure;
The second predetermined position is understood to be a position of the third structure that is designed in advance in the longitudinal direction.
The second supporting frame 14 includes a fifth structure and a sixth structure, the fifth structure is an H-shaped rod structure, at least two pairs of through holes are symmetrically arranged on the rod at one side end of the horizontal section in the fifth structure, and the sixth structure is a polygonal column structure, and the other side end of the horizontal section in the fifth structure is fixedly connected to one side of the sixth structure;
The two second connecting rods are respectively arranged in the hollow cylinder structure and the third through hole, are fixedly arranged on the two fixing frames 10 and are positioned between the two fixing frames 10, and the first supporting frame 13 can rotate relative to the fixing frames 10;
wherein, two above-mentioned second connecting rods are placed in hollow cylinder structure and third fourth through hole respectively to link firmly with two mount 10 can have two at least realization modes, and one realization mode is that the second connecting rod passes and welds on two mount 10 after hollow cylinder structure and third fourth through hole, and another realization mode is that the second connecting rod both ends are equipped with the external screw thread, and the second connecting rod passes behind above-mentioned hollow cylinder, third fourth through hole and the mount 10, utilizes the nut to fix on mount 10.
The two third connecting rods are respectively arranged in the symmetrical fifth through holes, are fixedly arranged on the two fixing frames 10 and are positioned between the two fixing frames 10, the second supporting frame 14 can rotate relative to the fixing frames 10, and the plate surface of the second supporting frame 14 is opposite to the plate surface of the first supporting frame 13 in parallel; as shown in fig. 4, the plate surface of the second supporting frame 14 is placed in parallel with the plate surface of the first supporting frame 13.
It should be noted that, the one end of the second connecting rod and the one end of the third connecting rod may be fixedly disposed on the inner side surface of one fixing frame 10 in advance, and only the other end of the second connecting rod is required to pass through the hollow cylinder structure, the fourth through hole and the fifth through hole correspondingly and then be welded on the inner side of the other fixing frame 10 during installation.
In addition, the second connecting rod can adopt the pan head screw, after the blade is clamped stably, the pan head screw penetrating through the fourth through hole and the pan head screw of the fifth through hole farthest from the horizontal section in the fifth structure can be screwed, and the blade can be stably arranged between the first clamping component and the second clamping component.
The two support plates 12 are respectively mounted on the two fixing frames 10 through the ear plates, the plate-shaped structure of one support plate 12 is close to the end part of the first support frame 13 provided with the fourth through hole, the end part of the first support frame 13 provided with the fourth through hole is arranged between the first plate surface and the second adjusting assembly, the plate-shaped structures of the two support plates 12 are parallel to each other, the support plate 12 can rotate relative to the fixing frames 10, and the first plate surface is the surface on the same side of the support plate 12 as the ear plate.
Wherein, the two supporting plates 12 are respectively mounted on the two fixing frames 10 through the ear plates in at least two manners, and the first manner is as follows:
a cylinder is arranged on a first mounting surface of the fixing frame 10, wherein the first mounting surface is a mounting surface on which the fixing frame 10 and the supporting plate 12 are mounted;
the end parts of the ear plates of the supporting plate 12 are respectively provided with a through hole as a sixth through hole;
One of the cylinders corresponds to one of the sixth through holes, one of the cylinders is disposed in one of the sixth through holes, and the cylinder is rotatable with respect to the sixth through hole, so that the support plate 12 is rotatable with respect to the fixing frame 10.
The second implementation mode is as follows: a cylinder is arranged on a first mounting surface of the fixing frame 10, wherein the first mounting surface is a mounting surface on which the fixing frame 10 and the supporting plate 12 are mounted;
The end parts of the ear plates of the supporting plate 12 are respectively provided with a circular ring matched with the cylinder;
One of the cylinders corresponds to one of the rings, one of the cylinders is disposed in one of the rings, and the cylinder is rotatable relative to the ring, so that the support plate 12 is rotatable relative to the mount 10.
Therefore, the second clamping assembly formed by the first supporting piece, the second supporting piece and the two supporting plates is simple in structure, convenient to assemble and disassemble, and the blade to be adjusted can be firmly clamped.
In one implementation, the second adjustment assembly includes a handle base 15 and a second handle 16,
The second handle 16 is mounted on the handle base 15, and the second handle 16 can rotate relative to the handle base 15;
The handle seat 15 is located at the end of the first support frame 13 provided with the third through hole, and is fixedly installed at the end of the two fixing frames 10, and the handle seat 15 can press the first support frame 13 to move.
The second handle 16 and the handle base 15 operate according to the following principle: pressing the second handle presses the handle seat 15, the handle seat 15 in turn presses the first support frame 13, and the first support frame 13 presses the support plate 12 to press the blade, see fig. 6 in detail.
The second handle 16 and the handle seat 15 may be connected by using threads, that is, the second handle 16 is provided with external threads, the handle seat 15 is provided with internal threads, the second handle 16 may rotate in the handle seat 15 by the threads, and the second handle 16 also moves linearly relative to the handle seat 15 while rotating relative to the handle seat 15; the second handle 16 rotates the handle seat 15 and simultaneously presses the first support frame 13 downwards, and the first support frame 13 presses the support plate 12 to press the blade.
In addition, the handle base 15 may be fixedly mounted on the two fixing frames 10 by screws and located between the two fixing frames 10.
It should be noted that, the first handle 7 and the second handle 16 may or may not be located on the same side, but the support seat connected to the second handle 16 is always adjacent to the first support frame 13, and the support seat connected to the second handle 16 can always press the first support frame 13 to move.
In order to facilitate the rotation of the second handle 16, an anti-slip pattern or an anti-slip cover may be provided at the pressure-applied end of the second handle 16, so that the friction force of the end of the second handle 16 is increased, and the technician can easily grasp and rotate.
Therefore, compared with the implementation mode related to the prior art, the blade pneumatic performance adjusting device provided by the embodiment of the invention does not need to process a large number of blades, does not need to select the blade with the largest characteristic distribution probability from the large number of blades, only needs to directly adjust the pneumatic performance of the blade to be adjusted by using the blade pneumatic performance adjusting device provided by the embodiment, and compared with the implementation mode related to the prior art, the blade pneumatic performance adjusting device not only can reduce the difficulty of adjusting the pneumatic performance of the blade, shortens the period of putting the blade into use, but also has a simple structure and is convenient to assemble and disassemble.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (11)
1. A blade aerodynamic performance adjustment device, characterized in that the blade aerodynamic performance adjustment device comprises: the device comprises a bracket assembly, a rotating piece, a scale assembly, a first adjusting assembly, a second adjusting assembly, a first clamping assembly and a second clamping assembly;
The scale assembly comprises a dial (2) and a pointer (3); one end of the pointer (3) is fixedly arranged on the rotating piece; the pointer (3) can rotate relative to the dial (2);
the rotating piece is arranged on the bracket assembly and can rotate relative to the bracket assembly along a preset track;
The first clamping assembly is arranged on the rotating piece; the second clamping assembly is mounted on the bracket assembly; the first clamping assembly and the second clamping assembly are both used for clamping the blade (1);
the first adjusting component is used for enabling the first clamping component to clamp the blade (1), the first clamping component drives the rotating piece to rotate along the preset track in the process of clamping the blade (1), and the rotating piece drives the pointer (3) to rotate relative to the dial (2) in the process of rotating along the preset track;
The second adjusting assembly is mounted on the bracket assembly and is used for enabling the second clamping assembly to clamp the blade (1).
2. The device according to claim 1, wherein the rotating member comprises a carriage (4), the carriage (4) comprising a first structure and two second structures, wherein,
The first structure is L-shaped plate structure, first preset position department of the first perpendicular board of first structure is equipped with two at least through-holes, as first through-hole, on the first edge with the direction that first perpendicular board is opposite to is equipped with perpendicularly the second perpendicular board of the horizontal plate of first structure, first edge is: edges of the horizontal plates of the first structure that are not adjacent to the first vertical plates;
The second structure is in a cylindrical structure, and a convex edge coplanar with the end surface is arranged on one end surface of the second structure along the circumferential direction; a trapezoid groove is formed in the side face of the second structure; the cross section of the trapezoid groove is as follows: the bottom edge of the trapezoid is in a trapezoid shape from large to small along the radial direction of the second structure, an L-shaped groove is formed in the bottom surface of the trapezoid groove, the horizontal groove edge of the L-shaped groove is collinear with the second edge of the bottom surface of the trapezoid groove, a rectangular groove is formed in a second preset position of the first surface, the first surface is a surface of the vertical groove surface of the L-shaped groove, which is parallel to the bottom surface of the trapezoid groove and coplanar with the horizontal groove surface, the second edge is a horizontal groove edge opposite to the second surface in the L-shaped groove, and the second surface is a vertical groove surface parallel to the first surface in the L-shaped groove; the length of the trapezoid groove and the length of the rectangular groove are the same as the length of the second structure;
The two second structures are respectively and vertically fixed at the two ends of the first structure, the convex edges of the two second structures are opposite, the bottom surface of the trapezoid groove is coplanar with the plate surface of the second vertical plate, and the vertical groove surface of the L-shaped groove where the rectangular groove is located is coplanar with the plate surface of the horizontal plate of the first structure.
3. The device according to claim 2, characterized in that the rotating member further comprises two fixed discs (5),
The fixed disc (5) is of a circular ring plate-shaped structure, and the fixed disc (5) is provided with a notch serving as a first notch;
A fixed disk (5) corresponds to a second structure, and the fixed disk (5) is sleeved on the outer side surface of the second structure.
4. A device according to claim 3, wherein the first adjustment assembly comprises a connection block (6) and a first handle (7),
The connecting block (6) is of a block-shaped structure with an L-shaped section, a through hole is formed in the center of the horizontal section of the connecting block (6) along the direction of the vertical section of the connecting block (6) and is used as a second through hole, and internal threads with preset lengths are arranged in the second through hole;
The first handle (7) is in a rod-shaped structure, and one end of the first handle (7) is provided with external threads matched with the internal threads;
The horizontal section of connecting block (6) is fixed mounting on the first vertical plate, the horizontal section of connecting block (6) with the horizontal plate of first structure is relative.
5. The device according to claim 4, wherein the first clamping assembly comprises a first slider (8) and two first connecting rods,
The first sliding block (8) is of an L-shaped plate structure, and at least two kidney-shaped holes are formed in a vertical plate of the first sliding block (8);
a first connecting rod corresponds to a kidney-shaped hole and a first through hole, and the first connecting rod is arranged in the kidney-shaped hole and the first through hole.
6. The device according to claim 5, wherein the first clamping assembly further comprises a second slider (9),
The second sliding block (9) is of a plate-shaped structure;
The second sliding block (9) is fixedly arranged on the horizontal plate surface of the L-shaped groove.
7. The device according to any one of claims 3-6, wherein the bracket assembly comprises two holders (10) and a plurality of fixed shafts (11),
The fixing frame (10) is of a strip-shaped plate structure, a through hole is formed in the plate surface at one end of the fixing frame (10) and is used as a third through hole, a notch along the length direction of the fixing frame (10) is formed in the plate surface at the other end of the fixing frame (10) and is used as a second notch, and the second notch is communicated with the third through hole;
the fixed shafts (11) are arranged between the two fixed frames (10) and fixedly connected with the fixed frames (10).
8. The device according to claim 7, wherein the second clamping assembly comprises two support plates (12), a first support frame (13), a second support frame (14), two second connecting rods and two third connecting rods,
The supporting plate (12) comprises two ear plates and a plate-shaped structure, and the ear plates are respectively and fixedly arranged at two ends of the plate-shaped structure;
The first support frame (13) comprises a third structure and a fourth structure, the third structure is of a strip-shaped platy structure with one end of the plate surface bent, a through hole is formed in the plate surface of the other end of the third structure and used as a fourth through hole, and a hollow cylinder structure penetrating through the plate surface is arranged at a second preset position of the third structure; the fourth structure is a rod structure with a polygonal section, and the side surface of the fourth structure is vertical and fixedly connected to the bending end of the third structure;
the second supporting frame (14) comprises a fifth structure and a sixth structure, the fifth structure is an H-shaped rod piece structure, at least two pairs of through holes are formed in a rod piece at one side end part of a horizontal section in the fifth structure, the sixth structure is a polygonal prism structure as a fifth through hole, and the end part at the other side of the horizontal section in the fifth structure is fixedly connected to one side surface of the sixth structure;
The two second connecting rods are respectively arranged in the hollow cylinder structure and the third through hole, are fixedly arranged on the two fixing frames (10) and are positioned between the two fixing frames (10), and the first supporting frame (13) can rotate relative to the fixing frames (10);
The two third connecting rods are respectively arranged in the symmetrical fifth through holes, are fixedly arranged on the two fixing frames (10) and are positioned between the two fixing frames (10), the second supporting frame (14) can rotate relative to the fixing frames (10), and the plate surface of the second supporting frame (14) is opposite to the plate surface of the first supporting frame (13) in parallel;
Two backup pad (12) pass through the otic placode is installed respectively two on mount (10), and one the platelike structure of backup pad (12) is close to the tip that first support frame (13) was equipped with the fourth through-hole, just the tip that first support frame (13) was equipped with the fourth through-hole is arranged in first face with between the second adjustment subassembly, two the platelike structure of backup pad (12) is parallel in opposite directions, backup pad (12) can be relative mount (10) rotate, first face is in the face that is located the same side with the otic placode in backup pad (12).
9. The device according to claim 8, wherein the second adjustment assembly comprises a handle base (15) and a second handle (16),
The second handle (16) is arranged on the handle seat (15), and the second handle (16) can rotate relative to the handle seat (15);
The handle seat (15) is fixedly arranged on the end parts of the two fixing frames (10), and is positioned at the end part of the first supporting frame (13) provided with a fourth through hole, the end part of the first supporting frame (13) provided with the fourth through hole is arranged between the first plate surface and the handle seat (15), and the handle seat (15) can press the first supporting frame (13) to move.
10. The device according to any one of claims 8 to 9, characterized in that a cylinder is provided on a first mounting surface of the holder (10), the first mounting surface being a mounting surface on which the holder (10) and the support plate (12) are mounted;
the end parts of the ear plates of one supporting plate (12) are respectively provided with a through hole which is used as a sixth through hole;
one of the cylinders corresponds to one of the sixth through holes, and one of the cylinders is placed in one of the sixth through holes.
11. The device according to claim 10, characterized in that the cylindrical surface of the second structure is provided with a U-shaped groove, which is placed on the inner ring of the stationary disc (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910690659.7A CN110562479B (en) | 2019-07-29 | 2019-07-29 | Blade pneumatic performance adjusting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910690659.7A CN110562479B (en) | 2019-07-29 | 2019-07-29 | Blade pneumatic performance adjusting device |
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| CN110562479B true CN110562479B (en) | 2024-07-30 |
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| CN112093074A (en) * | 2020-09-04 | 2020-12-18 | 江西昌河航空工业有限公司 | Stringer positioning and pressing device with pressing plates |
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| US6644081B1 (en) * | 2002-02-15 | 2003-11-11 | Joseph Keith Berry | System and method for adjusting helicopter blade trim tabs |
| CN211568336U (en) * | 2019-07-29 | 2020-09-25 | 北京中航智科技有限公司 | Pneumatic performance adjusting device for paddle |
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| US4422757A (en) * | 1981-08-13 | 1983-12-27 | Hughes Helicopters, Inc. | Apparatus and method for optical phasing of helicopter main rotor blades |
| CN103317371B (en) * | 2013-07-17 | 2015-10-28 | 大连理工大学 | An adjustable fixture for NC machining of helicopter composite rotor blades |
| US20150344127A1 (en) * | 2014-05-31 | 2015-12-03 | General Electric Company | Aeroelastically tailored propellers for noise reduction and improved efficiency in a turbomachine |
| CN106553768B (en) * | 2016-11-30 | 2018-10-02 | 中国直升机设计研究所 | A kind of main paddle steering engine benchmark method of adjustment |
| CN209157557U (en) * | 2018-10-31 | 2019-07-26 | 台州市椒江永固船舶螺旋桨厂 | A kind of blade angle regulating device of propeller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6644081B1 (en) * | 2002-02-15 | 2003-11-11 | Joseph Keith Berry | System and method for adjusting helicopter blade trim tabs |
| CN211568336U (en) * | 2019-07-29 | 2020-09-25 | 北京中航智科技有限公司 | Pneumatic performance adjusting device for paddle |
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