A contra-rotating paddle operation device and engine

Abstract

The application relates to the technical field of paddle equipment, and particularly discloses a contra-rotating paddle operation device and an engine, wherein the contra-rotating paddle operation device comprises concentric first and second rotating shafts, first and second power mechanisms, and first and second transmission mechanisms; one end of the first rotating shaft is provided with a first paddle, and one end of the second rotating shaft is provided with a second paddle; the output ends of the first and second power mechanisms are arranged along the radial directions of the first and second rotating shafts; the first and second power mechanisms are connected with the first and second rotating shafts through the first and second transmission mechanisms; the first transmission mechanism is provided with a first biasing assembly; and the input end and the output end of the first transmission mechanism are arranged in a staggered mode through the first biasing assembly. The first and second power mechanisms can occupy more space while the overall length of the shafting is kept unchanged, the output power is not affected by the size limitation, and the power transmission effect is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of paddle devices, and particularly relates to a contra-rotating paddle operation device and an engine. BACKGROUND

[0002] The contra-rotating propeller engine has the technical advantages of the turboprop engine and the turbofan engine, and is considered as one of the most promising subsonic aviation propulsion systems.

[0003] The existing contra-rotating propeller engine is generally in the form of concentric shafts, and the front and rear paddles are respectively installed on two shafts on the same axis, and the output power is distributed to the front and rear paddles in proportion through a single power device coaxially connected with the two shafts. However, the coaxial connection structure of the single power device and the two shafts is relatively complex, not only the difficulty of maintenance and management is large, but also the aerodynamic performance of the paddle is affected. If the number of the power device is increased, two or more power devices are connected with the two shafts respectively, limited by the length of the two shafts, the interval between the adjacent two power devices is too small, thereby affecting the available space of each power device, only the power device with small volume can be installed, so that the output power of the power device is difficult to provide sufficient power for the paddle, and if the length of the two shafts is increased, the overall length of the shafting is too long, which easily affects the transmission effect of the power and the aerodynamic performance of the paddle.

[0004] Therefore, the transmission effect of the existing contra-rotating propeller engine is poor. SUMMARY

[0005] In view of the above problems, the present application provides a contra-rotating paddle operation device and an engine, wherein the contra-rotating paddle operation device comprises:

[0006] The first rotating shaft and the second rotating shaft are concentrically arranged, one end of the first rotating shaft is provided with a first paddle, and one end of the second rotating shaft is provided with a second paddle;

[0007] The first power mechanism and the second power mechanism are arranged along the radial direction of the first rotating shaft and the second rotating shaft respectively;

[0008] The first transmission mechanism and the second transmission mechanism are connected with the first rotating shaft and the second rotating shaft respectively through the first power mechanism and the second power mechanism;

[0009] The first transmission mechanism is provided with a first biasing assembly, and the input end of the first transmission mechanism and the output end of the first transmission mechanism are arranged in a staggered manner through the first biasing assembly.

[0010] In some embodiments, the first transmission mechanism comprises:

[0011] a first biasing assembly, an input end of the first biasing assembly being connected with an output end of the first power mechanism;

[0012] a first transmission shaft, one end of the first transmission shaft being connected with an output end of the first biasing assembly, and the other end of the first transmission shaft being meshingly connected with the first rotating shaft.

[0013] In some embodiments, the first biasing assembly comprises:

[0014] a first upper connecting shaft, one end of the first upper connecting shaft being connected with the end of the first transmission shaft away from the first rotating shaft;

[0015] a first lower connecting shaft, one end of the first lower connecting shaft being connected with the output end of the first power mechanism;

[0016] the first upper connecting shaft and the first lower connecting shaft are both arranged along the radial direction of the first rotating shaft, and the first upper connecting shaft and the first lower connecting shaft are arranged in a staggered manner;

[0017] the outer circumferential surface of the end of the first upper connecting shaft away from the first transmission shaft is meshingly connected with the outer circumferential surface of the end of the first lower connecting shaft away from the first power mechanism through a gear.

[0018] In some embodiments, the first power mechanism comprises:

[0019] a first rotating motor and a first coupling, the output end of the first rotating motor being connected with the input end of the first transmission mechanism through the first coupling;

[0020] the second power mechanism comprises:

[0021] a second rotating motor and a second coupling, the output end of the second rotating motor being connected with the input end of the second transmission mechanism through the second coupling.

[0022] In some embodiments, the second transmission mechanism comprises:

[0023] a coaxial assembly, an input end of the coaxial assembly being connected with an output end of the second power mechanism;

[0024] a second transmission shaft, one end of the second transmission shaft being connected with an output end of the coaxial assembly, and the other end of the second transmission shaft being meshingly connected with the second rotating shaft.

[0025] In some embodiments, the second transmission mechanism comprises:

[0026] a second biasing assembly, an input end of the second biasing assembly being connected with an output end of the second power mechanism;

[0027] a second transmission shaft, one end of the second transmission shaft being connected with an output end of the second biasing assembly, and the other end of the second transmission shaft being meshingly connected with the second rotating shaft.

[0028] In some specific embodiments, the first transmission shaft is meshingly connected with the first rotating shaft through bevel gears near one end of the first rotating shaft;

[0029] the second transmission shaft is meshingly connected with the second rotating shaft through bevel gears near one end of the second rotating shaft.

[0030] In some specific embodiments, the device further comprises:

[0031] a mounting portion;

[0032] the mounting portion comprises:

[0033] a tower, the first power mechanism and the second power mechanism being arranged in the tower;

[0034] a frame, the first rotating shaft and the second rotating shaft being arranged on the frame;

[0035] a box, the first transmission mechanism and the second transmission mechanism being arranged in the box, and the input ends and the output ends of the first transmission mechanism and the second transmission mechanism extending into the tower and onto the frame, respectively.

[0036] In some specific embodiments, the plurality of side walls of the box are detachably connected.

[0037] A counter-rotating propeller engine based on the same concept, comprising: a counter-rotating propeller operating device and a wind tunnel according to any one of the above specific embodiments.

[0038] The first rotating shaft and the second rotating shaft of the counter-rotating propeller operating device arranged concentrically are arranged along the axial direction of the wind tunnel.

[0039] The contrarotating paddle operation device of the application, through the output ends of the first power mechanism and the second power mechanism arranged along the radial direction of the first rotating shaft and the second rotating shaft, replaces the original coaxial connection form of the single power device, so as to simplify the connection structure, reduce the difficulty of maintenance and management, and avoid the influence of the coaxial connection form on the aerodynamic performance of the first paddle and the second paddle. The first biasing assembly of the first transmission mechanism enables the input end and the output end of the first transmission mechanism to be arranged in a staggered manner, so as to increase the interval distance between the input end of the first transmission mechanism and the input end of the second transmission mechanism, and further improve the available space of the first power mechanism and the second power mechanism while maintaining the overall length of the shafting, avoiding the influence of the size limitation of the first power mechanism and the second power mechanism on the output power, and ensuring the transmission effect of the power. Moreover, the first power mechanism and the second power mechanism can play a supporting role on the overall shafting, so as to ensure the stable operation of the shafting and further improve the transmission effect of the power and reduce the influence on the aerodynamic performance of the first paddle and the second paddle.

[0040] The contrarotating paddle engine of the application has the same beneficial effects as the above-mentioned contrarotating paddle operation device, and thus the same beneficial effects will not be described here.

[0041] Other features and advantages of the application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application. The objects and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0043] Figure 1 A schematic diagram of the contrarotating paddle operation device in the embodiment of the application is shown;

[0044] Figure 2 A connection schematic diagram of the first rotating shaft and the first transmission shaft, the second rotating shaft and the second transmission shaft on the frame body in the embodiment of the application is shown;

[0045] Figure 3 A connection schematic diagram of the first power mechanism and the second power mechanism and the tower body in the embodiment of the application is shown;

[0046] Figure 4The connection diagram of the coaxial assembly and the first biasing assembly in the embodiment of the application and the box is shown.

[0047] Figure 5 The schematic diagram of the frame body in the embodiment of the application is shown.

[0048] Figure 6 The schematic diagram of the box in the embodiment of the application is shown.

[0049] Figure 7 The schematic diagram of the contra-rotating propeller engine in the embodiment of the application is shown.

[0050] In the figure, 100, first rotating shaft; 110, first propeller blade; 120, first auxiliary bevel gear; 200, second rotating shaft; 210, second propeller blade; 220, second auxiliary bevel gear; 300, first power mechanism; 310, first rotating motor; 320, first coupling; 400, second power mechanism; 410, second rotating motor; 420, second coupling; 500, first transmission mechanism; 510, first biasing assembly; 511, first upper connecting shaft; 512, first lower connecting shaft; 520, first transmission shaft; 600, second transmission mechanism; 610, coaxial assembly; 620, second transmission shaft; 700, mounting part; 710, tower body; 711, first top plate; 7111, reinforcing rod; 712, first bottom plate; 7121, motor auxiliary support assembly; 713, first mounting plate; 720, frame body; 721, main support rod; 722, auxiliary support rod; 723, second top plate; 724, second bottom plate; 725, rib plate; 730, box; 731, third top plate; 732, third bottom plate; 733, second mounting plate; 800, wind tunnel. DETAILED DESCRIPTION

[0051] To make the objectives, technical solutions and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be described below in a clear and complete manner with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are some but not all of the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the application.

[0052] REFERENCE Figure 1The application provides a rotating blade operation device, which comprises a first rotating shaft 100 and a second rotating shaft 200 arranged concentrically, a first power mechanism 300 and a second power mechanism 400, a first transmission mechanism 500 and a second transmission mechanism 600. One end of the first rotating shaft 100 is provided with a first blade 110, and one end of the second rotating shaft 200 is provided with a second blade 210. The output end of the first power mechanism 300 and the output end of the second power mechanism 400 are arranged along the radial direction of the first rotating shaft 100 and the second rotating shaft 200, respectively. The first power mechanism 300 is connected with the first rotating shaft 100 through the first transmission mechanism 500, and the second power mechanism 400 is connected with the second rotating shaft 200 through the second transmission mechanism 600. A first biasing assembly 510 is arranged in the first transmission mechanism 500. The input end of the first transmission mechanism 500 and the output end of the first transmission mechanism 500 are arranged in a staggered manner through the first biasing assembly 510.

[0053] Specifically, the first rotating shaft 100 and the second rotating shaft 200 are coaxially and collinearly arranged, and the axes of the first rotating shaft 100 and the second rotating shaft 200 coincide. One end of the first rotating shaft 100 is provided with a first paddle 110, and the first rotating shaft 100 can drive the first paddle 110 to rotate. One end of the second rotating shaft 200 is provided with a second paddle 210, and the second rotating shaft 200 can drive the second paddle 210 to rotate. The first power mechanism 300 is arranged along the radial direction of the first rotating shaft 100 and perpendicular to the axis of the first rotating shaft 100, so that the output end of the first power mechanism 300 can also be arranged along the radial direction of the first rotating shaft 100 and perpendicular to the axis of the first rotating shaft 100. The output end of the first power mechanism 300 is in transmission connection with the end of the first rotating shaft 100 away from the first paddle 110, and the first power mechanism 300 can drive the first rotating shaft 100 to rotate. The second power mechanism 400 is arranged along the radial direction of the second rotating shaft 200 and perpendicular to the axis of the second rotating shaft 200, so that the output end of the second power mechanism 400 can also be arranged along the radial direction of the second rotating shaft 200 and perpendicular to the axis of the second rotating shaft 200. The output end of the second power mechanism 400 is in transmission connection with the end of the second rotating shaft 200 away from the second paddle 210, and the second power mechanism 400 can drive the second rotating shaft 200 to rotate. By arranging the first power mechanism 300 and the second power mechanism 400 along the radial direction of the first rotating shaft 100 and the second rotating shaft 200, the coaxial connection form of the original single power device is replaced, so that the connection structure can be simplified, the difficulty of maintenance and management can be reduced, and the influence of the coaxial connection form on the aerodynamic performance of the first paddle 110 and the second paddle 210 can be avoided. The first transmission mechanism 500 is arranged between the first power mechanism 300 and the first rotating shaft 100, the input end of the first transmission mechanism 500 is connected with the output end of the first power mechanism 300, the output end of the first transmission mechanism 500 is connected with the end of the first rotating shaft 100 away from the first paddle 110, the second transmission mechanism 600 is arranged between the second power mechanism 400 and the second rotating shaft 200, the input end of the second transmission mechanism 600 is connected with the output end of the second power mechanism 400, and the output end of the second transmission mechanism 600 is connected with the end of the second rotating shaft 200 away from the second paddle 210, so that the power transmission is realized through the first transmission mechanism 500 and the second transmission mechanism 600. The first power mechanism 300 and the second power mechanism 400 can play a supporting role on the whole shafting, thereby reducing the span of each part of the shafting, reducing the shafting vibration frequency and amplitude in the transmission process, ensuring the stable operation of the whole shafting, further improving the power transmission effect, and reducing the influence on the aerodynamic performance of the first paddle 110 and the second paddle 210.The first transmission mechanism 500 is provided with a first biasing assembly 510, the first biasing assembly 510 is formed in a bent structure, so that the input end and the output end of the first transmission mechanism 500 are arranged in a staggered manner through the first biasing assembly 510, thereby increasing the interval distance between the input end of the first transmission mechanism 500 and the input end of the first transmission mechanism 500 when the interval distance between the output end of the first transmission mechanism 500 and the output end of the second transmission mechanism 600 is unchanged, thereby increasing the available space of the first power mechanism 300 and the second power mechanism 400 during installation while maintaining the overall length of the shaft system unchanged, especially the length of the first rotating shaft 100 and the second rotating shaft 200 unchanged, thereby eliminating the installation size limitation of the first transmission mechanism 500 and the second transmission mechanism 600, avoiding the influence of the output power of the first power mechanism 300 and the second power mechanism 400 due to size limitation, and ensuring the transmission effect of the power.

[0054] Further, the first rotating shaft 100 is arranged along the axial direction of the second rotating shaft 200, so that the axis of the first rotating shaft 100 is collinear with the axis of the second rotating shaft 200. The volume of the first rotating shaft 100 and the second rotating shaft 200 can be reduced.

[0055] Further, the length of the second rotating shaft 200 is greater than the length of the second rotating shaft 200, so that the two ends of the second rotating shaft 200 can be arranged outside the two ends of the first rotating shaft 100 along the axial direction of the first rotating shaft 100. Therefore, when the first paddle 110 is arranged on one end of the first rotating shaft 100, the second paddle 210 can also be arranged on the same end of the second rotating shaft 200 corresponding to the first rotating shaft 100.

[0056] Further, the first paddle 110 is detachably sleeved on the first rotating shaft 100, and the second paddle 210 is detachably sleeved on the second rotating shaft 200, which is convenient for installation and disassembly.

[0057] In some embodiments of the present application, with reference to Figure 1 Further comprising: a mounting portion 700; the first rotating shaft 100 and the second rotating shaft 200 are arranged on the top of the mounting portion 700; the first power mechanism 300 and the second power mechanism 400 are arranged on the bottom of the mounting portion 700; the first transmission mechanism 500 and the second transmission mechanism 600 are arranged in the middle of the mounting portion 700.

[0058] Specifically, the first rotating shaft 100 and the second rotating shaft 200 are horizontally arranged at the top of the mounting portion 700, the first power mechanism 300 and the second power mechanism 400 are vertically arranged at the bottom of the mounting portion 700, so that the output end of the first power mechanism 300 can be arranged along the radial direction of the first rotating shaft 100 and perpendicular to the axis of the first rotating shaft 100, and the output end of the second power mechanism 400 can be arranged along the radial direction of the second rotating shaft 200 and perpendicular to the axis of the second rotating shaft 200. The first transmission mechanism 500 and the second transmission mechanism 600 are vertically arranged at the middle of the mounting portion 700, so that the first transmission mechanism 500 and the second transmission mechanism 600 can also be arranged along the radial direction of the first rotating shaft 100 and the second rotating shaft 200 respectively, and the input end of the first transmission mechanism 500 can extend towards the output end of the first power mechanism 300 and be in transmission connection with the output end of the first power mechanism 300, the output end of the first transmission mechanism 500 can extend towards the end of the first rotating shaft 100 away from the first paddle 110 and be in transmission connection with the end of the first rotating shaft 100 away from the first paddle 110, the input end of the second transmission mechanism 600 can extend towards the output end of the second power mechanism 400 and be in transmission connection with the output end of the second power mechanism 400, and the output end of the second transmission mechanism 600 can extend towards the end of the second rotating shaft 200 away from the second paddle 210 and be in transmission connection with the end of the second rotating shaft 200 away from the second paddle 210. By arranging the mounting portion 700, it is convenient to realize the transmission connection between the first rotating shaft 100, the first transmission mechanism 500 and the first power mechanism 300 and the second rotating shaft 200, the second transmission mechanism 600 and the second power mechanism 400, and it is also convenient to limit the relative arrangement form between the first rotating shaft 100, the first transmission mechanism 500 and the first power mechanism 300 and the second rotating shaft 200, the second transmission mechanism 600 and the second power mechanism 400, so that the first power mechanism 300, the first transmission mechanism 500 and the second power mechanism 400, the second transmission mechanism 600 can be arranged along the radial direction of the first rotating shaft 100 and the second rotating shaft 200 respectively and perpendicular to the axis of the first rotating shaft 100 and the second rotating shaft 200, which can simplify the connection structure, reduce the difficulty of maintenance and management, avoid the interference of air flow on the first power mechanism 300, the first transmission mechanism 500 and the second power mechanism 400, the second transmission mechanism 600 when the first paddle 110 and the second paddle 210 operate, so as to improve the operation precision, ensure the stable operation of the shafting, improve the transmission effect of the power, and further reduce the influence on the aerodynamic performance of the first paddle 110 and the second paddle 210. Moreover, by moving the mounting portion 700, the first rotating shaft 100 and the second rotating shaft 200, the first power mechanism 300 and the first transmission mechanism 500, the second power mechanism 400 and the second transmission mechanism can be moved together, so as to conveniently change the arrangement position of the whole and adjust the measurement environment as needed.

[0059] In some embodiments of the present application, with reference to Figure 1 The first transmission mechanism 500 comprises a first biasing assembly 510 and a first transmission shaft 520. The input end of the first biasing assembly 510 is connected to the output end of the first power mechanism 300. One end of the first transmission shaft 520 is connected to the output end of the first biasing assembly 510, and the other end of the first transmission shaft 520 is meshingly connected to the first rotating shaft 100.

[0060] Specifically, the input end and the output end of the first biasing assembly 510 are arranged in a staggered manner. The output end of the first biasing assembly 510 is arranged along the radial direction of the first rotating shaft 100, perpendicular to the axis of the first rotating shaft 100 and away from the one end of the first rotating shaft 100. The input end of the first biasing assembly 510 is arranged along the radial direction of the first rotating shaft 100, perpendicular to the axis of the first rotating shaft 100 and towards the output end of the first power mechanism. The input end of the first transmission mechanism 500 is formed by the input end of the first biasing assembly 510. When the interval distance between the output end of the first biasing assembly 510 and the output end of the second transmission mechanism 600 remains unchanged, the interval distance between the input end of the first biasing assembly 510 and the input end of the first transmission mechanism 500 can be increased. In this way, the available space for the first power mechanism 300 and the second power mechanism 400 during installation is increased, and the length of the first rotating shaft 100 and the second rotating shaft 200 is maintained. The installation size of the first transmission mechanism 500 and the second transmission mechanism 600 is no longer limited by the length of the first rotating shaft 100 and the second rotating shaft 200. The output power of the first power mechanism 300 and the second power mechanism 400 is not affected by the size limitation, and the power transmission effect is ensured. One end of the first transmission shaft 520 is connected to the output end of the first biasing assembly 510, and the first transmission shaft 520 is driven to rotate by the first biasing assembly 510. The other end of the first transmission shaft 520 is meshingly connected to the one end of the first rotating shaft 100 away from the first paddle 110, so that the first rotating shaft 100 is driven to rotate. The airflow during the operation of the first paddle 110 and the second paddle 210 does not interfere with the first power mechanism 300, the first transmission mechanism 500, the second power mechanism 400, and the second transmission mechanism 600, thereby improving the operation accuracy, ensuring the stable operation of the shafting, improving the power transmission effect, and reducing the influence on the aerodynamic performance of the first paddle 110 and the second paddle 210. Furthermore, the first biasing assembly 510 supports the shafting as a whole, thereby reducing the span of the first transmission shaft 520, reducing the shafting vibration frequency and amplitude during transmission, ensuring the stable operation of the shafting as a whole, further improving the power transmission effect, and reducing the influence on the aerodynamic performance of the first paddle 110 and the second paddle 210.

[0061] Further, with reference to Figure 2The first transmission shaft 520 is provided with a first bevel gear at one end away from the first biasing assembly 510, the first rotating shaft 100 is provided with a first auxiliary bevel gear 120 at one end away from the first paddle 110, the first bevel gear and the first auxiliary bevel gear 120 are adapted to mesh with each other, so that the rotation of the first transmission shaft 520 can drive the first rotating shaft 100 to rotate together.

[0062] In some embodiments of the present application, with reference to Figure 4 The first biasing assembly 510 comprises a first upper connecting shaft 511 and a first lower connecting shaft 512. One end of the first upper connecting shaft 511 is connected with one end of the first transmission shaft 520 away from the first rotating shaft 100, and one end of the first lower connecting shaft 512 is connected with the output end of the first power mechanism 300. The first upper connecting shaft 511 and the first lower connecting shaft 512 are both arranged along the radial direction of the first rotating shaft 100, and are arranged in a staggered manner and connected with each other.

[0063] Specifically, the top end of the first upper connecting shaft 511 forms the output end of the first biasing assembly 510, and is used to be connected with one end of the first transmission shaft 520 away from the first rotating shaft 100, so that the rotation of the first upper connecting shaft 511 can drive the first transmission shaft 520 to rotate. The bottom end of the first lower connecting shaft 512 forms the input end of the first biasing assembly 510, and is used to be connected with the output end of the first power mechanism 300, so that the rotation of the output end of the first power mechanism 300 can drive the first lower connecting shaft 512 to rotate. The first upper connecting shaft 511 and the first lower connecting shaft 512 are both arranged along the radial direction of the first rotating shaft 100 and perpendicular to the axis of the first rotating shaft 100, the bottom end of the first upper connecting shaft 511 and the top end of the first lower connecting shaft 512 are arranged adjacent to each other, and the outer circumferential surface of the bottom end of the first upper connecting shaft 511 and the outer circumferential surface of the top end of the first lower connecting shaft 512 are connected with each other in a meshing manner, so that the rotation of the first lower connecting shaft 512 can drive the first upper connecting shaft 511 to rotate, and the input end and the output end of the first biasing assembly 510 are arranged in a staggered manner.

[0064] In some embodiments of the present application, with reference to Figure 1 The second transmission mechanism 600 comprises a coaxial assembly 610 and a second transmission shaft 620. The input end of the coaxial assembly 610 is connected with the output end of the second power mechanism 400, one end of the second transmission shaft 620 is connected with the output end of the coaxial assembly 610, and the other end of the second transmission shaft 620 is connected with the second rotating shaft 200 in a meshing manner.

[0065] Specifically, the coaxial assembly 610 is arranged radially perpendicularly to the axis of the second rotating shaft 200, and the output end of the coaxial assembly 610 is away from the end of the second rotating shaft 200 away from the second paddle 210, the input end of the second transmission mechanism 600 is formed through the input end of the coaxial assembly 610, one end of the second transmission shaft 620 is connected with the output end of the coaxial assembly 610, the second transmission shaft 620 can be driven to rotate through the coaxial assembly 610, the other end of the second transmission shaft 620 is engaged with the end of the second rotating shaft 200 away from the second paddle 210, so as to drive the second rotating shaft 200 to rotate. The airflow generated during the operation of the first paddle 110 and the second paddle 210 avoids interfering with the first power mechanism 300, the first transmission mechanism 500, the second power mechanism 400 and the second transmission mechanism 600, so as to improve the operation accuracy, ensure the stable operation of the shafting, improve the transmission effect of the power, and reduce the influence on the aerodynamic performance of the first paddle 110 and the second paddle 210. Moreover, the coaxial assembly 610 plays a supporting role on the whole shafting, so as to reduce the span of the second transmission shaft 620, reduce the shafting vibration frequency and amplitude in the transmission process, ensure the stable operation of the whole shafting, further improve the transmission effect of the power, and reduce the influence on the aerodynamic performance of the first paddle 110 and the second paddle 210.

[0066] Alternatively, in some specific embodiments of the present application, the second transmission mechanism 600 comprises a second biasing assembly and a second transmission shaft 620. The input end of the second biasing assembly is connected with the output end of the second power mechanism 400; one end of the second transmission shaft 620 is connected with the output end of the second biasing assembly, and the other end of the second transmission shaft 620 is engaged with the second rotating shaft 200.

[0067] Specifically, the input end and the output end of the second biasing assembly are arranged to be mutually misaligned, the output end of the second biasing assembly is arranged along the radial direction of the second rotating shaft 200, perpendicular to the axis of the second rotating shaft 200 and away from one end of the second rotating shaft 200, and the input end of the second biasing assembly is arranged along the radial direction of the second rotating shaft 200, perpendicular to the axis of the second rotating shaft 200 and away from the output end of the second power device, the input end of the second biasing assembly forms the input end of the second transmission mechanism 600, and the interval distance between the input end of the second biasing assembly and the input end of the first biasing assembly 510 can be increased while the interval distance between the output end of the second biasing assembly and the output end of the first biasing assembly 510 remains unchanged, thereby further increasing the available space of the first power mechanism 300 and the second power mechanism 400 during installation while maintaining the length of the first rotating shaft 100 and the second rotating shaft 200 unchanged, eliminating the installation size limitation of the first transmission mechanism 500 and the second transmission mechanism 600 caused by the length of the first rotating shaft 100 and the second rotating shaft 200, avoiding the impact of the size limitation on the output power of the first power mechanism 300 and the second power mechanism 400, and ensuring the transmission effect of the power. One end of the second transmission shaft 620 is connected with the output end of the second biasing assembly, and the second transmission shaft 620 can be driven to rotate by the second biasing assembly, and the other end of the second transmission shaft 620 is engaged with the end of the second rotating shaft 200 away from the second paddle 210, so as to further drive the second rotating shaft 200 to rotate. The airflow during the operation of the first paddle 110 and the second paddle 210 does not interfere with the first power mechanism 300, the first transmission mechanism 500 and the second power mechanism 400, the second transmission mechanism 600, thereby improving the operation accuracy, ensuring the stable operation of the shafting, improving the transmission effect of the power, and reducing the impact on the aerodynamic performance of the first paddle 110 and the second paddle 210. Moreover, the second biasing assembly is arranged to support the shafting as a whole, thereby reducing the span of the second transmission shaft 620, reducing the shafting vibration frequency and amplitude during transmission, ensuring the stable operation of the shafting as a whole, further improving the transmission effect of the power, and reducing the impact on the aerodynamic performance of the first paddle 110 and the second paddle 210.

[0068] Further, with reference to Figure 2 , the second transmission shaft 620 is provided with a second bevel gear at one end away from the first biasing assembly 510 or the coaxial assembly 610, the second rotating shaft 200 is provided with a second auxiliary bevel gear 220 at one end away from the second paddle 210, and the second bevel gear and the second auxiliary bevel gear 220 are adapted to engage with each other, so that the second rotating shaft 200 can be driven to rotate together by the rotation of the second transmission shaft 620.

[0069] Further, when the second transmission mechanism 600 comprises the second biasing assembly and the second transmission shaft 620, the second biasing assembly comprises a second upper connecting shaft and a second lower connecting shaft. A top end of the second upper connecting shaft forms an output end of the second biasing assembly, and is used to be connected with an end of the second transmission shaft 620 away from the second rotating shaft 200, and rotation of the second upper connecting shaft can drive the second transmission shaft 620 to rotate. A bottom end of the second lower connecting shaft forms an input end of the first biasing assembly 510, and is used to be connected with the output end of the second power mechanism 400, and rotation of the output end of the second power mechanism 400 can drive the second lower connecting shaft to rotate. The second upper connecting shaft and the second lower connecting shaft are both arranged along a radial direction of the first rotating shaft 100 and perpendicular to an axis of the first rotating shaft 100, the bottom end of the second upper connecting shaft and the top end of the second lower connecting shaft are arranged adjacently, and an outer circumferential surface of the bottom end of the second upper connecting shaft and an outer circumferential surface of the top end of the second lower connecting shaft are connected with each other in meshing mode, so that rotation of the second lower connecting shaft can drive the second upper connecting shaft to rotate, and the input end and the output end of the second biasing assembly are arranged in a staggered mode.

[0070] In some embodiments of the present application, with reference to Figure 3 The first power mechanism 300 comprises a first rotating motor 310 and a first coupling 320. An output end of the first rotating motor 310 is connected with an input end of the first transmission mechanism 500 through the first coupling 320. The second power mechanism 400 comprises a second rotating motor 410 and a second coupling 420. An output end of the second rotating motor 410 is connected with an input end of the second transmission mechanism 600 through the second coupling 420. Specifically, the first rotating motor 310 is arranged vertically, and an output end of the first rotating motor 310 is arranged opposite to the first lower connecting shaft 512. The output end of the first rotating motor 310 is connected with a bottom end of the first lower connecting shaft 512 through the first coupling 320. The second rotating motor 410 is arranged vertically, and an output end of the second rotating motor 410 is arranged opposite to the second lower connecting shaft. The output end of the second rotating motor 410 is connected with a bottom end of the second lower connecting shaft through the second coupling 420. Alternatively, when the second transmission mechanism 600 comprises the coaxial assembly 610 and the second transmission shaft 620, the output end of the second rotating motor 410 is connected with the input end of the coaxial assembly 610 through the second coupling 420.

[0071] In some embodiments of the present application, with reference to Figure 1The mounting part 700 comprises a tower body 710, a frame body 720 and a box body 730. The first power mechanism 300 and the second power mechanism 400 are arranged in the tower body 710; the first rotating shaft 100 and the second rotating shaft 200 are arranged on the frame body 720; the first transmission mechanism 500 and the second transmission mechanism 600 are arranged in the box body 730, and the input end and the output end of the first transmission mechanism 500 and the second transmission mechanism 600 extend into the tower body 710 and the frame body 720 respectively.

[0072] Specifically, referring to Figure 5 The tower body 710 is composed of a plurality of channel steels. A first bottom plate 712 is horizontally arranged at the bottom of the tower body 710, a first top plate 711 is horizontally arranged at the top of the tower body 710, and a first side plate is arranged at the outer side of the tower body 710, so as to further support and reinforce the tower body 710. Two motor auxiliary support assemblies 7121 are arranged on the first bottom plate 712, and the first rotating motor 310 and the second rotating motor 410 are arranged on the two motor auxiliary support assemblies 7121 respectively, so that the first rotating motor 310 and the second rotating motor 410 can be vertically arranged in the tower body 710. An installation plate is horizontally arranged in the tower body 710, and the end of the first rotating motor 310 and the second rotating motor 410 away from the motor auxiliary support assembly 7121 is fixedly connected with the installation plate, and the output end of the first rotating motor 310 and the second rotating motor 410 is arranged through the installation plate, so as to complete the installation of the first rotating motor 310 and the second rotating motor 410.

[0073] Further, a reinforcing rod 7111 is horizontally fixedly arranged on the first top plate 711, so as to improve the stability of the tower body 710.

[0074] Referring to Figure 6 The frame body 720 comprises a main support rod 721, an auxiliary support rod 722, a second top plate 723 and a second bottom plate 724. The main support rod 721 is vertically arranged, the auxiliary support rod 722 is vertically arranged around the main support rod 721, the second top plate 723 is horizontally arranged at the top of the main support rod 721 and the auxiliary support rod 722, and the second bottom plate 724 is horizontally arranged at the bottom of the main support rod 721 and the auxiliary support rod 722. The first rotating shaft 100 and the second rotating shaft 200 are rotatably arranged on the second top plate 723, so as to complete the installation of the first rotating shaft 100 and the second rotating shaft 200.

[0075] Further, the frame body 720 further comprises a plurality of rib plates 725. The plurality of rib plates 725 are uniformly arranged along the axial direction of the main support rod 721, each rib plate 725 is horizontally arranged and connected with the main support rod 721 and the auxiliary support rod 722, so as to complete the installation of the rib plate 725 and improve the stability.

[0076] Further, the outer surfaces of the main support rod 721, the auxiliary support rod 722, the second top plate 723, the second bottom plate 724, and the rib plate 725 are fixed to the skin provided with countersunk screws.

[0077] Further, the outer surfaces of the main support rod 721, the auxiliary support rod 722, the second top plate 723, the second bottom plate 724, and the rib plate 725 are smooth and flat, and the overall shape after combination is similar to an airfoil, which can reduce the influence of air flow and make the aerodynamic performance data more accurate.

[0078] Referring to Figure 4 The box 730 is spliced by a third top plate 731, a third bottom plate 732, and a plurality of second side plates. The top surface of the third top plate 731 is fixedly abutted with the bottom surface of the second bottom plate 724, and the bottom surface of the third bottom plate 732 is fixedly abutted with the top surface of the first top plate 711. A second mounting plate 733 is horizontally arranged between the third top plate 731 and the third bottom plate 732. The first upper connecting shaft 511 of the first biasing assembly 510 of the first transmission mechanism 500 is rotatably arranged through the second mounting plate 733 and rotatably connected with the top surface of the third bottom plate 732. The first lower connecting shaft 512 of the first biasing assembly 510 of the first transmission mechanism 500 is rotatably arranged through the third bottom plate 732 and rotatably connected with the bottom surface of the second mounting plate 733. The input end of the first transmission shaft 520 of the first transmission mechanism 500 is rotatably arranged through the second bottom plate 724 and the third top plate 731 and connected with the first upper connecting shaft 511. The output end of the first transmission shaft 520 of the first transmission mechanism 500 is rotatably arranged through the second top plate 723 and meshingly connected with the first rotating shaft 100. The coaxial assembly 610 of the second transmission mechanism 600 is rotatably arranged through the second mounting plate 733 and the third bottom plate 732. The input end of the second transmission shaft 620 of the second transmission mechanism 600 is rotatably arranged through the second bottom plate 724 and the third top plate 731 and connected with the coaxial assembly 610. The output end of the second transmission shaft 620 of the second transmission mechanism 600 is rotatably arranged through the second top plate 723 and meshingly connected with the second rotating shaft 200.

[0079] Alternatively, when the second transmission mechanism 600 includes a second biasing assembly and a second transmission shaft 620, the second upper connecting shaft of the second biasing assembly of the second transmission mechanism 600 is rotatably arranged through the second mounting plate 733 and rotatably connected with the top surface of the third bottom plate 732. The second lower connecting shaft of the second biasing assembly of the second transmission mechanism 600 is rotatably arranged through the third bottom plate 732 and rotatably connected with the bottom surface of the second mounting plate 733. The input end of the second transmission shaft 620 of the second transmission mechanism 600 is rotatably arranged through the second bottom plate 724 and the third top plate 731 and connected with the second upper connecting shaft. The output end of the second transmission shaft 620 of the second transmission mechanism 600 is rotatably arranged through the second top plate 723 and meshingly connected with the second rotating shaft 200.

[0080] In some embodiments of the present application, the plurality of side walls of the box 730 are detachably connected. Specifically, the second side plate is detachably connected with the third top plate 731 and the third bottom plate 732, facilitating installation and maintenance.

[0081] With reference to Figure 7 The present application also provides a contra-rotating propeller engine, comprising the contra-rotating propeller operating device and the wind tunnel 800 according to any one of the above embodiments, and the first rotating shaft 100 and the second rotating shaft 200 of the contra-rotating propeller operating device are arranged along the axial direction of the wind tunnel 800. Instead of the coaxial connection of the original single power device, the connection structure can be simplified, the difficulty of maintenance and management can be reduced, and the airflow generated during the operation of the first propeller 110 and the second propeller 210 can avoid interfering with the first power mechanism 300, the first transmission mechanism 500, the second power mechanism 400, and the second transmission mechanism 600, thereby improving the operation accuracy, ensuring the stable operation of the shafting, improving the transmission effect of the power, and avoiding the influence of the coaxial connection form on the aerodynamic performance of the first propeller 110 and the second propeller 210. Moreover, the input end and the output end of the first transmission mechanism 500 are arranged in a staggered manner, which can increase the interval distance between the input end of the first transmission mechanism 500 and the input end of the second transmission mechanism 600, thereby improving the available space of the first power mechanism 300 and the second power mechanism 400 while maintaining the overall length of the shafting, avoiding the influence of the output power of the first power mechanism 300 and the second power mechanism 400 due to size limitations, and ensuring the transmission effect of the power. Finally, the first power mechanism 300 and the second power mechanism 400 can support the entire shafting, thereby ensuring the stable operation of the shafting, further improving the transmission effect of the power, and reducing the influence on the aerodynamic performance of the first propeller 110 and the second propeller 210.

[0082] Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones, and these modifications or replacements do not change the essence of the corresponding technical solutions.

Claims

1. A counter-rotating blade operating device, characterized in that, include: A first rotating shaft (100) and a second rotating shaft (200) are arranged concentrically. One end of the first rotating shaft (100) is provided with a first blade (110), and one end of the second rotating shaft (200) is provided with a second blade (210). The first power mechanism (300) and the second power mechanism (400) are respectively arranged radially along the first rotating shaft (100) and the second rotating shaft (200); The first transmission mechanism (500) and the second transmission mechanism (600) are connected, wherein the first power mechanism (300) is connected to the first rotating shaft (100) through the first transmission mechanism (500), and the second power mechanism (400) is connected to the second rotating shaft (200) through the second transmission mechanism (600). The first transmission mechanism (500) is provided with a first biasing component (510), and the input end and the output end of the first transmission mechanism (500) are misaligned through the first biasing component (510). The first transmission mechanism (500) includes: A first biasing component (510) is connected to the output of the first power mechanism (300). A first drive shaft (520) is provided, one end of which is connected to the output end of the first biasing component (510), and the other end of which is engaged with the first rotating shaft (100). The first bias component (510) includes: A first upper connecting shaft (511) is connected at one end to the end of the first transmission shaft (520) away from the first rotating shaft (100). The first lower connecting shaft (512) has one end connected to the output end of the first power mechanism (300); The first upper connecting shaft (511) and the first lower connecting shaft (512) are both arranged radially along the first rotating shaft (100), and the first upper connecting shaft (511) and the first lower connecting shaft (512) are staggered. The outer peripheral surface of the end of the first upper connecting shaft (511) away from the first transmission shaft (520) is connected to the outer peripheral surface of the end of the first lower connecting shaft (512) away from the first power mechanism (300) by gear meshing.

2. The counter-rotating blade operating device according to claim 1, characterized in that, The first power mechanism (300) includes: The first rotating motor (310) and the first coupling (320) are connected, with the output end of the first rotating motor (310) connected to the input end of the first transmission mechanism (500) through the first coupling (320). The second power mechanism (400) includes: The second rotating motor (410) and the second coupling (420) are connected, with the output end of the second rotating motor (410) connected to the input end of the second transmission mechanism (600) via the second coupling (420).

3. The counter-rotating blade operating device according to claim 1, characterized in that, The second transmission mechanism (600) includes: A coaxial assembly (610), the input end of which is connected to the output end of the second power mechanism (400); The second drive shaft (620) has one end connected to the output end of the coaxial assembly (610) and the other end engaged with the second rotating shaft (200).

4. The counter-rotating blade operating device according to claim 1, characterized in that, The second transmission mechanism (600) includes: The second biasing component has its input end connected to the output end of the second power mechanism (400); The second drive shaft (620) has one end connected to the output end of the second biasing component and the other end engaged with the second rotating shaft (200).

5. The counter-rotating blade operating device according to claim 3 or 4, characterized in that, The end of the first drive shaft (520) near the first rotating shaft (100) is connected to the first rotating shaft (100) via a bevel gear. The end of the second drive shaft (620) near the second rotating shaft (200) is connected to the second rotating shaft (200) via a bevel gear.

6. The counter-rotating blade operating device according to claim 1, characterized in that, Also includes: Installation section (700); The mounting part (700) includes: The tower body (710) is provided with the first power mechanism (300) and the second power mechanism (400) inside the tower body (710); A frame (720) is provided, on which the first pivot (100) and the second pivot (200) are mounted; The housing (730) has the first transmission mechanism (500) and the second transmission mechanism (600) passing through it. The input and output ends of the first transmission mechanism (500) and the second transmission mechanism (600) extend into the tower body (710) and onto the frame (720), respectively.

7. The counter-rotating blade operating device according to claim 6, characterized in that, The multiple side walls of the housing (730) are detachably connected.

8. A counter-rotating blade engine, characterized in that, include: The counter-rotating blade operating device and wind tunnel (800) as described in any one of claims 1 to 7; The first rotating shaft (100) and the second rotating shaft (200) of the counter-rotating blade operating device are arranged concentrically along the axial direction of the wind tunnel (800).

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