Multifunctional multi-rotor characteristic test bench

Abstract

The utility model discloses a multifunctional multi-rotor characteristic test bench, relates to the technical field of test benches, and aims to solve the technical problems that the test bench is single in function, can only test a single rotor, and cannot perform pitching test on the rotor. According to the technical scheme, the device is characterized by comprising 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 cross beams on the two sides are slidably connected to the longitudinal beam through sliding blocks, and the sliding blocks are driven by first sliding mechanisms; two rotor wing mounting plates are slidably connected to the cross beams through second sliding mechanisms, the two rotor wing mounting plates are symmetrically distributed about the center of the longitudinal beam, a horizontal rotating mechanism is arranged at the bottom of each cross beam, and a pitching control mechanism is arranged on each of the two sides of each horizontal rotating mechanism. The objective of the utility model is to provide a multi-rotor characteristic test bench with multiple functions.

Description

TECHNICAL FIELD

[0001] The utility model relates to a test bench more specifically, it relates to a kind of multi-rotor characteristic test bench with multifunction. BACKGROUND

[0002] Multi-rotor aircraft can be rotated by electric motor on each shaft, drive rotor, thereby generating lift thrust, by changing the relative rotational speed between different rotors, the size of single-axis propulsion can be changed, thereby controlling the running track of aircraft.In the manufacturing process of multi-rotor aircraft, the aerodynamic interference of rotor under different postures and parameters need to be studied, so the role of multi-rotor characteristic test bench is to debug parameters in development process.

[0003] The technical key points of a single-rotor plant protection unmanned aerial vehicle rotor vibration test bench disclosed in the Chinese patent announcement CN209176937U are as follows: a base, characterized in that: a support is vertically arranged on the upper end face of the base, and the lower end face of the support is fixedly connected with the upper end face of the base; two tail beam mounting seats are symmetrically arranged on the lower part of one side of the support, and a through hole is formed in the middle part of the tail beam mounting seat; a left sliding block and a right sliding block are respectively arranged on the upper parts of the opposite two sides of the support, a left sliding groove and a right sliding groove are respectively arranged on the left sliding block and the right sliding block, and the left sliding groove and the right sliding groove are parallel to each other; a diagonal pull rod mounting seat is arranged on the upper end face of the left sliding block and the right sliding block, and the diagonal pull rod mounting seat is fixedly connected with the left sliding groove and the right sliding groove through two screws; and strip-shaped holes are formed in the left and right ends of the diagonal pull rod mounting seat.

[0004] In the above technical solution, the test bench has a single function, and can only test a single rotor, and cannot perform pitch test on the rotor.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a multi-rotor characteristic test bench with multifunction.

[0007] The above technical purpose of the utility model is realized by the following technical solution: a multi-rotor characteristic test bench with multifunction, 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 around the longitudinal beams as the axis, the cross beams on both sides are slidably connected to the longitudinal beams through sliding blocks, the sliding blocks are driven by first sliding mechanisms, two rotor mounting plates are slidably connected to the cross beams through second sliding mechanisms, the two rotor mounting plates are symmetrically distributed around the center of the longitudinal beams, a horizontal rotation mechanism is arranged at the bottom of the cross beam, and a set of pitch control mechanisms is arranged on both sides of the horizontal rotation mechanism.

[0008] By adopting the technical scheme, the rotor is installed on the rotor mounting plate, the symmetric arrangement of the longitudinal beam as the axis center ensures mechanical balance and reduces vibration interference, the combination of the sliding block, the first sliding mechanism and the second sliding mechanism supports multi-dimensional position adjustment, the horizontal rotation mechanism and the pitching control mechanism can be combined to generate a complex flight attitude, such as yaw and pitch, and the test is closer to the real flight scene.

[0009] The utility model further sets up: the specific quantity of crossbeam is three.

[0010] The utility model further sets up: the first sliding mechanism includes sliding connection seat, sliding link, sliding cylinder, sliding joint and sliding mounting plate, sliding connection seat sets up in one side of sliding block, one end of sliding link is rotatably connected in sliding connection seat, its other end is rotably connected in sliding joint, sliding joint sets up on the piston rod of sliding cylinder, one end of sliding mounting plate is fixed in one side of crossbeam, and its other end is fixed in sliding cylinder.

[0011] The utility model further sets up: the second sliding mechanism includes installation connecting seat and installation link, the specific quantity of installation connecting seat is two, two installation connecting seat are arranged in one side of two rotor mounting plates respectively, the specific quantity of installation link is two, two installation link are rotatably connected in two installation connecting seat respectively, two installation link are rotatably connected with each other, and still be provided with cooperative connecting mechanism on two installation link.

[0012] The utility model further sets up: the cooperative connecting mechanism includes cooperative cylinder, cooperative joint, cooperative connecting rod and cooperative mounting plate, one end of cooperative joint is rotatably connected on one side installation link, and its other end sets up on the piston rod of cooperative cylinder, the specific quantity of cooperative connecting rod is two, and both ends of two cooperative connecting rod are fixedly connected in adjacent installation link respectively, one end of cooperative mounting plate is fixed in cooperative cylinder, and its other end is fixed in crossbeam.

[0013] The utility model further sets up: the horizontal rotation mechanism includes rotation motor, motor gear and gear groove, rotation motor sets up below longitudinal beam, and its output shaft is rotatably connected in motor gear, the gear groove is seted up in the bottom of longitudinal beam, and motor gear sets up in gear groove.

[0014] The utility model further sets up: the pitch control mechanism includes pitch control board, worm, worm motor, worm wheel and worm wheel mounting plate, pitch control board bolt fixed in the bottom of longitudinal beam, worm rotation is connected in pitch control board, worm motor rotation is connected in worm, worm wheel mounting plate rotation is connected in the bottom of pitch control board, worm wheel sets up on worm wheel mounting plate, and is engaged in worm.

[0015] The utility model further sets up: one side of worm wheel mounting plate is provided with fixed plate, one side of pitch control board is provided with fixed groove that fixed plate inserts.

[0016] The utility model has following beneficial effect: 1. the sliding block of sliding cylinder makes the horizontal distance adjustment of crossbeam.

[0017] 2. the installation connecting rod of collaborative cylinder, collaborative connecting rod and makes the longitudinal distance adjustment of three crossbeams simultaneously.

[0018] 3. rotation motor and motor gear make longitudinal beam can rotate in horizontal plane, simulate multi-rotor yaw attitude.

[0019] 4. worm, worm wheel and worm wheel mounting plate make longitudinal beam pitch, and make the rotor on crossbeam can simulate pitch attitude. DRAWINGS

[0020] Figure 1 It is the three-dimensional structure schematic view of this embodiment;

[0021] Figure 2 It is the side view of this embodiment;

[0022] Figure 3 It is the bottom view of this embodiment;

[0023] Figure 4 It is the three-dimensional structure schematic view of the pitch control mechanism of this embodiment;

[0024] Figure 5 It is the front view of the pitch control mechanism of this embodiment.

[0025] DRAWINGS: 1, longitudinal beam;2, crossbeam;3, sliding block;4, rotor mounting plate;5, sliding connecting seat;6, sliding connecting rod;7, sliding cylinder;8, sliding joint;9, sliding mounting plate;10, installation connecting seat;11, installation connecting rod;12, collaborative cylinder;13, collaborative joint;14, collaborative connecting rod;15, collaborative mounting plate;16, rotation motor;17, motor gear;18, pitch control board;19, worm;20, worm motor;21, worm wheel;22, worm wheel mounting plate;23, fixed plate;24, fixed groove. SPECIFIC IMPLEMENTATION

[0026] The utility model will be further explained in detail below in combination with the drawings.

[0027] Wherein, same parts are indicated by same reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" 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 component.

[0028] As shown in Figures 1 to 5 A multifunctional multi-rotor characteristic test bench comprises a rack, the rack is composed of longitudinal beams 1 and a plurality of cross beams 2, the cross beams 2 are symmetrically and equidistantly distributed with the longitudinal beams 1 as the axis, the cross beams 2 on both sides are slidably connected to the longitudinal beams 1 through sliding blocks 3, the sliding blocks 3 are driven through first sliding mechanisms, two rotor mounting plates 4 are slidably connected to the cross beams 2 through second sliding mechanisms, the two rotor mounting plates 4 are symmetrically distributed with the center of the longitudinal beams 1, a horizontal rotation mechanism is arranged at the bottom of the cross beams 2, and a group of pitch control mechanisms is arranged at the two sides of the horizontal rotation mechanism.

[0029] The rotors (not shown in the figure) are mounted on the rotor mounting plates 4, the symmetric layout with the longitudinal beams 1 as the axis ensures mechanical balance and reduces vibration interference, grooves are formed in the longitudinal beams 1 corresponding positions for the sliding blocks 3 to slide, the sliding blocks 3, the first sliding mechanisms and the second sliding mechanisms are combined to support multi-dimensional position adjustment, the horizontal distance and the vertical distance between the rotors are adjusted, the horizontal rotation mechanism and the pitch control mechanisms can be combined to generate complex flight attitudes such as yaw and pitch, and the test is closer to the real flight scene.

[0030] The specific number of the cross beams 2 is three; the first sliding mechanism comprises a sliding connection seat 5, a sliding connecting rod 6, a sliding cylinder 7, a sliding joint 8 and a sliding mounting plate 9, the sliding connection seat 5 is arranged on one side of the sliding block 3, one end of the sliding connecting rod 6 is rotationally connected to the sliding connection seat 5, the other end of the sliding connecting rod 6 is rotationally connected to the sliding joint 8, the sliding joint 8 is arranged on the piston rod of the sliding cylinder 7, one end of the sliding mounting plate 9 is bolted to one side of the cross beam 2, and the other end of the sliding mounting plate 9 is bolted to the sliding cylinder 7.

[0031] The sliding cylinder 7 serves as a power source to drive and transmit power to the sliding joint 8, the sliding joint 8 can drive the cross beams 2 on both sides to approach or move away from the central cross beam 2 through the rotational connection with the sliding connecting rod 6, so that the horizontal distance adjustment of the rotors on the cross beams 2 is realized.

[0032] The second sliding mechanism comprises mounting connecting seats 10 and mounting connecting rods 11. The specific number of the mounting connecting seats 10 is two, and the two mounting connecting seats 10 are arranged on one side of the two rotor mounting plates 4 respectively. The specific number of the mounting connecting rods 11 is two, and the two mounting connecting rods 11 are rotatably connected to the two mounting connecting seats 10 respectively. The two mounting connecting rods 11 are rotatably connected to each other, and a cooperative connecting mechanism is further arranged on the two mounting connecting rods 11.

[0033] The mounting connecting seats 10 provide corresponding supports between the rotor mounting plates 4 and the mounting connecting rods 11. The two mounting connecting rods 11 rotatably connected to each other can drive the rotor mounting plates 4 on the two sides to approach or move away from each other, so as to realize the longitudinal distance adjustment of the rotors on the cross beams 2.

[0034] The cooperative connecting mechanism comprises a cooperative cylinder 12, a cooperative joint 13, cooperative connecting rods 14 and a cooperative mounting plate 15. One end of the cooperative joint 13 is rotatably connected to one of the mounting connecting rods 11, and the other end of the cooperative joint 13 is arranged on a piston rod of the cooperative cylinder 12. The specific number of the cooperative connecting rods 14 is two, and the two ends of the two cooperative connecting rods 14 are fixedly connected to the adjacent mounting connecting rods 11 respectively. One end of the cooperative mounting plate 15 is bolted to the cooperative cylinder 12, and the other end of the cooperative mounting plate 15 is bolted to the cross beam 2.

[0035] The cooperative connecting rods 14 are connected to the two adjacent cross beams 2, that is, one end of one of the cooperative connecting rods 14 is connected to the mounting connecting rod 11 on the central cross beam 2, and the other end of the one of the cooperative connecting rods 14 is connected to the mounting connecting rod 11 on the left or right cross beam 2. Through the cooperative connecting rods 14, the cooperative cylinder 12 only needs to generate a force on the mounting connecting rod 11 on the leftmost or rightmost side, so as to simultaneously adjust the longitudinal distance of the rotor mounting plates 4 on the three cross beams 2.

[0036] The horizontal rotating mechanism comprises a rotating motor 16, a motor gear 17 and a gear groove. The rotating motor 16 is arranged below the longitudinal beam 1, the output shaft of the rotating motor 16 is rotatably connected to the motor gear 17, the gear groove is arranged on the bottom of the longitudinal beam 1, and the motor gear 17 is arranged in the gear groove. The rotating motor 16 drives the motor gear 17 to rotate, so that the longitudinal beam 1 can rotate in the horizontal plane, and the yaw attitude of the multi-rotor is simulated.

[0037] The pitch control mechanism comprises a pitch control plate 18, a worm 19, a worm motor 20, a worm wheel 21 and a worm wheel mounting plate 22. The pitch control plate 18 is bolted to the bottom of the longitudinal beam 1. The worm 19 is rotatably connected to the pitch control plate 18. The worm motor 20 is rotatably connected to the worm 19. The worm wheel mounting plate 22 is rotatably connected to the bottom of the pitch control plate 18. The worm wheel 21 is arranged on the worm wheel mounting plate 22 and is engaged with the worm 19.

[0038] The worm gear 19 is driven to rotate by the worm gear motor 20, the worm wheel 21 is a half-toothed gear, the worm gear 19 is engaged with the worm wheel 21, the worm gear 19 can rotate relatively, the worm wheel 21 can drive the pitch control plate 18 to rotate, the pitch control plate 18 can drive the longitudinal beam 1 to pitch, and finally the rotor on the cross beam 2 can simulate the pitch attitude.

[0039] One side of the worm wheel mounting plate 22 is provided with a fixed plate 23, one side of the pitch control plate 18 is provided with a fixed groove 24 for inserting the fixed plate 23, one end of the fixed plate 23 is fixed to the worm wheel mounting plate 22, the other side is inserted into the fixed groove 24, the worm wheel mounting plate 22 can be fixed relatively, and relative support is provided for the rotation of the pitch control plate 18.

[0040] Working principle: when in use, the rotor is installed on the rotor mounting plate 4, the sliding block 3 is driven by the sliding cylinder 7 to adjust the horizontal distance between the cross beams 2, the installation connecting rod 11 is driven by the cooperative cylinder 12 to displace, and the three rotor mounting plates 4 on the cross beams 2 are driven by the cooperative connecting rod 14 to adjust the longitudinal distance, after adjustment, the motor gear 17 is driven by the rotating motor 16 to rotate, the longitudinal beam 1 can rotate in the horizontal plane, the multi-rotor yaw attitude is simulated, meanwhile, the worm gear 19 is driven by the worm gear motor 20 to rotate, the worm gear 19 is engaged with the worm wheel 21, the worm gear 19 can rotate relatively, the worm wheel 21 can drive the pitch control plate 18 to rotate, the pitch control plate 18 can drive the longitudinal beam 1 to pitch, and finally the rotor on the cross beam 2 can simulate the pitch attitude.

[0041] The specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, the person skilled in the art can make the modification without creative contribution according to the need after reading the specification, but as long as in the claim range of the utility model, it is protected by the patent law.

Claims

1. A multi-rotor characteristic test bench with multi-function, characterized in that: The utility model provides a kind of helicopter, including rack, the rack is made of stringer (1) and several cross beams (2), the cross beam (2) is all equidistantly distributed with stringer (1) as axis center symmetry, the cross beam (2) is all slidably connected with stringer (1) by sliding block (3), the sliding block (3) is all driven by first sliding mechanism, the cross beam (2) is all slidably connected with two rotor mounting plates (4) by second sliding mechanism, two the rotor mounting plate (4) is symmetrically distributed with the center of stringer (1), the bottom of the cross beam (2) is provided with horizontal rotation mechanism, the both sides of the horizontal rotation mechanism are respectively provided with a group of pitch control mechanism.

2. The multi-rotor characteristic test bench with multiple functions according to claim 1, characterized in that: The specific number of the cross beam (2) is three.

3. The multi-rotor characteristic test bench with multiple functions according to claim 2, characterized in that: The first sliding mechanism includes sliding connection seat (5), sliding link (6), sliding cylinder (7), sliding joint (8) and sliding mounting plate (9), the sliding connection seat (5) is arranged on one side of the sliding block (3), one end of the sliding link (6) is rotatably connected to the sliding connection seat (5), the other end is rotatably connected to the sliding joint (8), the sliding joint (8) is arranged on the piston rod of the sliding cylinder (7), one end of the sliding mounting plate (9) is bolted to one side of the cross beam (2), the other end is bolted to the sliding cylinder (7).

4. The multi-rotor characteristic test bench with multiple functions according to claim 3, characterized in that: The second sliding mechanism includes mounting connection seat (10) and mounting link (11), the specific number of the mounting connection seat (10) is two, two the mounting connection seat (10) is respectively arranged on one side of two rotor mounting plates (4), the specific number of the mounting link (11) is two, two the mounting link (11) is respectively rotatably connected to two mounting connection seats (10), two the mounting link (11) is rotatably connected to each other, two the mounting link (11) is further provided with cooperative connection mechanism.

5. The multi-rotor characteristic test bench with multiple functions according to claim 4, characterized in that: The cooperative connection mechanism includes cooperative cylinder (12), cooperative joint (13), cooperative connecting rod (14) and cooperative mounting plate (15), one end of the cooperative joint (13) is rotatably connected to one side of the mounting link (11), the other end is arranged on the piston rod of the cooperative cylinder (12), the specific number of the cooperative connecting rod (14) is two, two the ends of two the cooperative connecting rod (14) are respectively fixedly connected to adjacent mounting link (11), one end of the cooperative mounting plate (15) is bolted to the cooperative cylinder (12), the other end is bolted to the cross beam (2).

6. The multi-rotor characteristic test bench with multiple functions according to claim 5, characterized in that: The horizontal rotation mechanism includes rotation motor (16), motor gear (17) and gear groove, the rotation motor (16) is arranged below the stringer (1), the output shaft is rotatably connected to the motor gear (17), the gear groove is opened in the bottom of the stringer (1), the motor gear (17) is arranged in the gear groove.

7. The multi-rotor characteristic test bench with multiple functions according to claim 6, characterized in that: The pitch control mechanism comprises a pitch control plate (18), a worm (19), a worm motor (20), a worm wheel (21) and a worm wheel mounting plate (22), the pitch control plate (18) is bolted to the bottom of the longitudinal beam (1), the worm (19) is rotatably connected to the pitch control plate (18), the worm motor (20) is rotatably connected to the worm (19), the worm wheel mounting plate (22) is rotatably connected to the bottom of the pitch control plate (18), and the worm wheel (21) is arranged on the worm wheel mounting plate (22) and is engaged with the worm (19).

8. The multi-rotor characteristic test bench with multiple functions according to claim 7, characterized in that: One side of the worm wheel mounting plate (22) is provided with a fixing plate (23), and one side of the pitch control plate (18) is provided with a fixing groove (24) for inserting the fixing plate (23).

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