Test bench convenient for rotor wing installation

Abstract

The utility model discloses a test bed convenient for mounting a rotor wing, relates to the technical field of rotor wing test beds, and aims to solve the problem that the rotor wing cannot be quickly mounted and dismounted when the rotor wing is mounted through bolts. The technical problem is solved. According to the technical scheme, the rotor wing clamping device is characterized in that the rotor wing clamping device comprises a rack, the rack is composed of a longitudinal beam and a plurality of cross beams, the cross beams are symmetrically distributed at equal intervals with the longitudinal beam as the axis, the two ends of each cross beam are each provided with a rotor wing clamping assembly, and each rotor wing clamping assembly comprises a left clamping plate, a right clamping plate, a pushing assembly and a locking assembly; the left clamping plate and the right clamping plate are both connected to the cross beam in a sliding mode, the pushing assembly is used for pushing the left clamping plate and the right clamping plate to get away from each other or get close to each other, the locking assembly enables the left clamping plate and the right clamping plate to keep clamping a rotor wing, and a horizontal rotating assembly and a pitching control assembly are arranged at the bottom of the longitudinal beam. The objective of the utility model is to provide the test bench convenient for installing the rotor wing.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotor test bench, more specifically, it relates to a test bench convenient for installing rotor. BACKGROUND

[0002] Rotor is the main lifting component of rotor aircraft such as helicopter and rotorcraft. It is composed of hub and several blades, the hub is installed on the rotor shaft, and the blade is connected to the hub. Rotor has various types, including articulated, hingeless, semi-hinged and bearingless rotor.

[0003] The technical key points of the main rotor dynamic balancing test bench disclosed in the Chinese patent announcement CN221484738U are: a rack is provided, a power component is fixedly installed on one side of the rack, a distribution box is arranged on the side of the rack away from the power component, and a fixing mechanism is arranged on the rack; the fixing mechanism comprises a fixing assembly, and counterweight assemblies are arranged on the both sides of the bottom of the fixing assembly; the fixing assembly comprises a connecting shaft, a connecting frame is fixedly connected to one end of the connecting shaft, a rotor blade fixing piece is arranged on the top of the connecting frame, and a connecting rod is fixedly connected to the connecting frame; the counterweight assembly comprises a sliding seat, a first fixing piece is arranged on the sliding seat, a first plug block is fixedly connected to the sliding seat, a counterweight block is arranged on the bottom of the sliding seat, and a second fixing piece is arranged on the counterweight block.

[0004] In the above technical scheme, the rotor is mainly installed through bolts, and the installation process is relatively cumbersome, and the rotor cannot be quickly installed and disassembled.

[0005] Therefore, a new technical scheme is needed to solve the above technical problems. INVENTION CONTENTS

[0006] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a test bench convenient for installing rotor.

[0007] The above technical purpose of the utility model is realized through the following technical scheme: a test bench convenient for installing rotor, characterized by comprising a rack, the rack is composed of longitudinal beams and a plurality of cross beams, the cross beams are symmetrically and equidistantly distributed with the longitudinal beams as the axis, a group of rotor clamping assemblies are arranged at the two ends of the cross beams, the rotor clamping assemblies comprise left clamping plates, right clamping plates, pushing assemblies and locking assemblies, the left clamping plates and the right clamping plates are slidingly connected to the cross beams, the pushing assemblies are used for pushing the left clamping plates and the right clamping plates away from or close to each other, the locking assemblies make the left clamping plates and the right clamping plates clamp the rotor, and horizontal rotating assemblies and pitch control assemblies are arranged at the bottom of the longitudinal beams.

[0008] By adopting the technical scheme, the number of the cross beams can be increased or decreased according to requirements, the distance between the left clamping plate and the right clamping plate is made close to each other by the pushing assembly until the left clamping plate and the right clamping plate are attached to each other, the left clamping plate and the right clamping plate keep the clamping state of the rotor by the locking assembly, and the rotor can be tested in yaw and pitch by the horizontal rotating assembly and the pitch control assembly after installation.

[0009] The utility model further sets up: the pushing assembly includes push rod, push telescopic cover, push cam, cam limit board, the specific number of push rod is two, two push rod is respectively arranged on two push telescopic cover, and is through in left clamping plate and right clamping plate, two push telescopic cover is along push cam center symmetry distribution, push cam is abutted in left clamping plate, is provided with rotating assembly on it, cam limit board is set up on two push telescopic cover, and is abutted in push cam, cam limit board fixed connection is in the surface of crossbeam.

[0010] The utility model further sets up: two push rod all are provided with reset spring.

[0011] The utility model further sets up: rotating assembly includes rotating shaft, rotating motor and rotating mounting plate, rotating shaft one end is through and is connected in push cam, its other end is set up in rotating motor's output shaft, rotating mounting plate top bolt is fixed in rotating motor, and its bottom bolt is fixed in cam limit board.

[0012] The utility model further sets up: locking assembly includes magnetic attraction steel sheet, permanent magnet, installation bolt and fixed bolt, is seted up on left clamping plate the plate groove that magnetic attraction steel sheet inserts, the plate groove is along left clamping plate center symmetry distribution, the specific number of magnetic attraction steel sheet is several, magnetic attraction steel sheet is fixed in left clamping plate through installation bolt, is seted up on right clamping plate the slot that permanent magnet inserts, the slot is along right clamping plate center symmetry distribution, the specific number of permanent magnet is several, and permanent magnet is fixed in right clamping plate through fixed bolt.

[0013] The utility model further sets up: the surface of crossbeam is seted up left slide groove and right slide groove, left clamping plate is slidably connected in left slide groove through left slide plate, left slide plate is seted up in the bottom of left clamping plate, right clamping plate is slidably connected in right slide groove through right slide plate, and right slide plate is seted up in the bottom of right clamping plate.

[0014] The utility model has following beneficial effect: 1. the rotation of push cam makes left clamping plate carry out corresponding displacement, and left clamping plate can drive the displacement of right clamping plate through push rod.

[0015] 2. The reset spring can make the left clamping plate and the right clamping plate separate faster and more effectively.

[0016] 3. The magnetic force connection between the magnetic steel plate and the permanent magnet makes the left clamping plate and the right clamping plate clamp the rotor, and the rotor will not fall off during the test. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a schematic view of the three-dimensional structure of the embodiment;

[0018] Fig. 2 It is a schematic view of the three-dimensional structure of the single beam and the rotor clamping assembly of the embodiment;

[0019] Fig. 3 It is a schematic view of the three-dimensional structure of the rotor clamping assembly of the embodiment;

[0020] Fig. 4 It is a schematic view of the three-dimensional structure of the rotor clamping assembly of the embodiment from another perspective.

[0021] BRIEF DESCRIPTION OF DRAWINGS: 1, longitudinal beam; 2, cross beam; 3, left clamping plate; 4, right clamping plate; 5, push rod; 6, push telescopic sleeve; 7, push cam; 8, cam limiting plate; 9, reset spring; 10, rotating shaft; 11, rotating motor; 12, rotating mounting plate; 13, magnetic steel plate; 14, permanent magnet; 15, mounting bolt; 16, fixing bolt; 17, left sliding groove; 18, right sliding groove; 19, left sliding plate; 20, right sliding plate. DETAILED DESCRIPTION

[0022] The utility model will be further described in detail below with reference to the drawings.

[0023] Wherein, same parts are indicated by same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0024] As Figs. 1 to 4 shown, a test bench facilitating installation of a rotor, comprising a rack, the rack being composed of longitudinal beams 1 and a plurality of cross beams 2, the cross beams 2 being symmetrically and equidistantly distributed about the longitudinal beams 1 as the axis, each end of the cross beam 2 is provided with a set of rotor clamping assemblies, the rotor clamping assembly comprises a left clamping plate 3, a right clamping plate 4, a push assembly and a locking assembly, the left clamping plate 3 and the right clamping plate 4 are both slidingly connected to the cross beam 2, the push assembly is used to push the left clamping plate 3 and the right clamping plate 4 away from or close to each other, the locking assembly makes the left clamping plate 3 and the right clamping plate 4 clamp the rotor, and the bottom of the longitudinal beam 1 is provided with a horizontal rotating assembly and a pitch control assembly.

[0025] The rotor is installed on the clamping assembly of the crossbeam 2, the number of the crossbeams 2 can be increased or decreased according to the needs, the distance between the left clamping plate 3 and the right clamping plate 4 is close to each other by the pushing assembly, until they are close to each other, the locking assembly makes the left clamping plate 3 and the right clamping plate 4 keep the clamping state of the rotor, after the installation is completed, the yaw and pitch test of the rotor can be carried out through the horizontal rotation assembly and the pitch control assembly, the horizontal rotation assembly can be a horizontal rod, the bottom of the horizontal rod is provided with a driven bevel gear, the driven bevel gear drives the test stand to yaw through the rotation of the driving bevel gear, the driving bevel gear drives the rotation through the gear motor, the driving bevel gear is arranged on the output shaft of the gear motor, the pitch control assembly can be a pitch joint and a rotating arm to drive the test stand to pitch, the pitch joint is rotatably connected to the rotating arm, the rotating arm is also rotatably connected with a cylinder joint, the cylinder joint drives the rotating arm to rotate through the pitch cylinder, the pitch cylinder is bolted to the horizontal rod through the pitch mounting plate.

[0026] The pushing assembly includes a pushing rod 5, a pushing telescopic sleeve 6, a pushing cam 7 and a cam limiting plate 8, the specific number of the pushing rod 5 is two, the two pushing rods 5 are arranged on the two pushing telescopic sleeves 6 respectively, and penetrate through the left clamping plate 3 and the right clamping plate 4, the two pushing telescopic sleeves 6 are distributed symmetrically along the center of the pushing cam 7, the pushing cam 7 abuts against the left clamping plate 3, and a rotating assembly is arranged on the pushing cam 7, the cam limiting plate 8 is arranged on the two pushing telescopic sleeves 6 and abuts against the pushing cam 7, and the cam limiting plate 8 is fixedly connected to the surface of the crossbeam 2.

[0027] The pushing cam 7 is rotated through the rotating assembly, the rotation of the pushing cam 7 causes the left clamping plate 3 to displace correspondingly, since the left clamping plate 3 is connected to the right clamping plate 4 through the pushing rod 5, the displacement of the left clamping plate 3 can drive the displacement of the right clamping plate 4, so that the left clamping plate 3 and the right clamping plate 4 are away from or close to each other, and the rotor is clamped or released correspondingly, the pushing telescopic sleeve 6 provides a corresponding space for the displacement of the pushing rod 5, and the cam limiting plate 8 plays a corresponding limiting role on the pushing cam 7, at the same time, the cam limiting plate 8 abuts against the pushing cam 7, so that the pushing cam 7 can better generate a force on the left clamping plate 3.

[0028] Reset springs 9 are arranged on the two pushing rods 5; the reset springs 9 are arranged on the outer wall of the pushing rod, when the left clamping plate 3 and the right clamping plate 4 release the rotor, the reset springs 9 can make the left clamping plate 3 and the right clamping plate 4 separate more quickly and effectively.

[0029] The rotating assembly includes a rotating shaft 10, a rotating motor 11 and a rotating mounting plate 12, one end of the rotating shaft 10 penetrates and is rotatably connected to the pushing cam 7, the other end of the rotating shaft 10 is arranged on the output shaft of the rotating motor 11, the top of the rotating mounting plate 12 is bolted to the rotating motor 11, and the bottom of the rotating mounting plate 12 is bolted to the cam limiting plate 8.

[0030] By rotating the motor 11, the rotating shaft 10 is rotated correspondingly, and the rotating shaft 10 drives the push cam 7 to rotate, so that the push cam 7 generates a force on the left clamping plate 3, and the left clamping plate 3 and the right clamping plate 4 can be away from or close to each other, thereby realizing clamping and loosening of the rotor.

[0031] The locking assembly includes magnetic steel plates 13, permanent magnets 14, mounting bolts 15, and fixing bolts 16. The left clamping plate 3 is provided with plate grooves for embedding the magnetic steel plates 13, and the plate grooves are symmetrically distributed along the center of the left clamping plate 3. The specific number of the magnetic steel plates 13 is several. The magnetic steel plates 13 are fixed to the left clamping plate 3 through the mounting bolts 15. The right clamping plate 4 is provided with grooves for embedding the permanent magnets 14, and the grooves are symmetrically distributed along the center of the right clamping plate 4. The specific number of the permanent magnets 14 is several. The permanent magnets 14 are fixed to the right clamping plate 4 through the fixing bolts 16.

[0032] The mounting bolts 15 and the fixing bolts 16 respectively fix the magnetic steel plates 13 and the permanent magnets 14, so that they will not fall off during use. The magnetic steel plates 13 and the permanent magnets 14 are symmetrically distributed along the centers of the left clamping plate 3 and the right clamping plate 4, so that the left clamping plate 3 and the right clamping plate 4 are uniformly stressed, achieving good magnetic attraction effect, and the left clamping plate 3 and the right clamping plate 4 clamp the rotor, so that the rotor will not fall off during the test.

[0033] The cross beam 2 is provided with a left sliding groove 17 and a right sliding groove 18. The left clamping plate 3 is slidably connected to the left sliding groove 17 through a left sliding plate 19, and the left sliding plate 19 is arranged at the bottom of the left clamping plate 3. The right clamping plate 4 is slidably connected to the right sliding groove 18 through a right sliding plate 20, and the right sliding plate 20 is arranged at the bottom of the right clamping plate 4.

[0034] The left sliding groove 17 and the right sliding groove 18 provide corresponding sliding spaces for the left clamping plate 3 and the right clamping plate 4. The left sliding plate 19 and the right sliding plate 20 can respectively drive the left clamping plate 3 and the right clamping plate 4 to slide, so that the left clamping plate 3 and the right clamping plate 4 clamp and loosen the rotor correspondingly.

[0035] Working principle: the rotor is placed on the surface of the crossbeam 2, the motor 11 rotates through the rotating shaft 10 to make the push cam 7 push the left clamping plate 3 to displace, the left clamping plate 3 drives the displacement of the right clamping plate 4 through the push rod 5, the left clamping plate 3 and the right clamping plate 4 are close to each other, until abutting each other, at this time, the magnetic attraction steel plate 13 on the left clamping plate 3 and the permanent magnet 14 on the right clamping plate 4 are magnetically connected, the rotor is clamped well, the rotor does not shake and deviate during the test, the rotor is tested through the horizontal rotating assembly and the pitch control assembly, when the rotor needs to be disassembled, the motor 11 is used to make the push cam 7 relax the left clamping plate 3, the reset spring 9 generates a force to make the magnetic attraction steel plate 13 and the permanent magnet 14 far away from each other, the push rod 5 pushes the left clamping plate 3 and the right clamping plate 4 far away from each other, when the push cam 7 is pushed to the original position by the motor 11, the left clamping plate 3 and the right clamping plate 4 are restored to the original position, and the relaxed rotor is taken away.

[0036] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and the person skilled in the art can make a modification without creative contribution according to the need after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A test bed for facilitating installation of a rotor, the test bed comprising: The utility model provides a kind of rotary wing clamping device, including gantry, the gantry is made of stringer (1) and several cross beams (2), the cross beam (2) is all equidistantly distributed with stringer (1) as axis of symmetry, and the both ends of cross beam (2) are provided with a group of rotary wing clamping components, the rotary wing clamping component includes left clamping plate (3), right clamping plate (4), pusher assembly and locking assembly, left clamping plate (3) and right clamping plate (4) are all slidingly connected in cross beam (2), the pusher assembly is used to push left clamping plate (3) and right clamping plate (4) away from each other or close to each other, and the locking assembly makes left clamping plate (3) and right clamping plate (4) hold clamping to rotary wing, and the bottom of stringer (1) is provided with horizontal rotation assembly and pitch control assembly.

2. A test bed for facilitating installation of a rotor according to claim 1, characterized in that: The pusher assembly includes push rod (5), push telescopic sleeve (6), push cam (7), cam limiting plate (8), the specific number of push rod (5) is two, two push rod (5) is respectively arranged on two push telescopic sleeve (6), and is penetrated in left clamping plate (3) and right clamping plate (4), two push telescopic sleeve (6) is along push cam (7) center symmetry distribution, push cam (7) is abutted on left clamping plate (3), and rotation assembly is provided on it, cam limiting plate (8) is arranged on two push telescopic sleeve (6), and is abutted on push cam (7), and cam limiting plate (8) is fixedly connected on the surface of cross beam (2).

3. A test bed for facilitating installation of a rotor according to claim 2, wherein: Reset spring (9) is arranged on two push rod (5).

4. A test bed for facilitating installation of a rotor according to claim 3, wherein: The rotation assembly includes rotating shaft (10), rotation motor (11) and rotation mounting plate (12), one end of rotating shaft (10) is penetrated and rotationally connected to push cam (7), the other end is arranged on the output shaft of rotation motor (11), the top of rotation mounting plate (12) is bolted to rotation motor (11), and the bottom is bolted to cam limiting plate (8).

5. A test bed for facilitating installation of a rotor according to claim 4, wherein: The locking assembly includes magnetic steel plate (13), permanent magnet (14), mounting bolt (15) and fixed bolt (16), the plate groove for embedding magnetic steel plate (13) is formed in left clamping plate (3), the plate groove is symmetrically distributed along the center of left clamping plate (3), the specific number of magnetic steel plate (13) is several, the magnetic steel plate (13) is fixed to left clamping plate (3) by mounting bolt (15), the slot for embedding permanent magnet (14) is formed in right clamping plate (4), the slot is symmetrically distributed along the center of right clamping plate (4), the specific number of permanent magnet (14) is several, and the permanent magnet (14) is fixed to right clamping plate (4) by fixed bolt (16).

6. A test bed for facilitating installation of a rotor according to claim 5, wherein: The surface of cross beam (2) is provided with left slide groove (17) and right slide groove (18), left clamping plate (3) is slidingly connected to left slide groove (17) by left slide plate (19), left slide plate (19) is arranged at the bottom of left clamping plate (3), and right clamping plate (4) is slidingly connected to right slide groove (18) by right slide plate (20), and right slide plate (20) is arranged at the bottom of right clamping plate (4).

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