Operating device for contra-rotating blades and engine

Abstract

The invention relates to the technical field of paddle equipment, in particular to a contra-rotating paddle operation device and an engine, and the contra-rotating paddle operation device comprises a first rotating shaft, a second rotating shaft, a first power mechanism, a second power mechanism, a first transmission mechanism and a second transmission mechanism, first blades are arranged at one end of the first rotating shaft; second blades are arranged at one end of the second rotating shaft; the output end of the first power mechanism and the output end of the second power mechanism are arranged in the radial direction of the first rotating shaft and the second rotating shaft. The first power mechanism and the second power mechanism are connected with the first rotating shaft and the second rotating shaft through the first transmission mechanism and the second transmission mechanism; a first bias assembly is arranged in the first transmission mechanism, and the input end and the output end of the first transmission mechanism are arranged in a staggered mode through the first bias assembly. The overall length of the shafting can be kept unchanged, meanwhile, the occupied space of the first power mechanism and the second power mechanism is increased, the situation that the output power is affected due to size limitation is avoided, and the power transmission effect is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of blade equipment, and in particular relates to a counter-rotating blade operating device and an engine. Background Art

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

[0003] Existing counter-rotating propeller engines are generally in the form of concentric shafts, with the front and rear blades respectively installed on two shafts on the same axis, and the output power is proportionally distributed to the front and rear blades through a single power device coaxially connected to the two shafts. However, the coaxial connection structure of a single power device and two shafts is relatively complex, which is not only difficult to maintain and manage, but also affects the aerodynamic performance of the blades. If the number of power devices is increased, and two or more power devices are respectively connected to the two shafts, the distance between two adjacent power devices will be too small due to the length limit of the two shafts, thereby affecting the space available for each power device. Only a small power device can be installed, making it difficult for the output power of the power device to provide sufficient power for the blades. If the length of the two shafts is increased, the overall length of the shaft system will be too long, which will easily affect the power transmission effect and have a greater impact on the aerodynamic performance of the blades.

[0004] Therefore, the transmission effect of the existing counter-rotating propeller engines is relatively poor. Summary of the invention

[0005] In view of the above problems, the present invention proposes a counter-rotating blade operating device and an engine, wherein the counter-rotating blade operating device comprises:

[0006] A first rotating shaft and a second rotating shaft are arranged concentrically, wherein a first blade is arranged at one end of the first rotating shaft, and a second blade is arranged at one end of the second rotating shaft;

[0007] A first power mechanism and a second power mechanism, wherein an output end of the first power mechanism and an output end of the second power mechanism are respectively arranged along the radial direction of the first rotating shaft and the second rotating shaft;

[0008] a first transmission mechanism and a second transmission mechanism, wherein the first power mechanism is connected to the first rotating shaft via the first transmission mechanism, and the second power mechanism is connected to the second rotating shaft via the second transmission mechanism;

[0009] A first biasing component is disposed in the first transmission mechanism, and an input end of the first transmission mechanism and an output end of the first transmission mechanism are staggered by the first biasing component.

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

[0011] a first biasing assembly, wherein an input end of the first biasing assembly is connected to an output end of the first power mechanism;

[0012] A first transmission shaft, one end of the first transmission shaft is connected to the output end of the first biasing assembly, and the other end of the first transmission shaft is meshedly connected to the first rotating shaft.

[0013] In some specific embodiments, the first biasing component includes:

[0014] a first upper connecting shaft, one end of which is connected to an end of the first transmission shaft away from the first rotating shaft;

[0015] a first lower connecting shaft, one end of which is connected to an 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 staggered;

[0017] The outer circumferential surface of one end of the first upper connecting shaft away from the first transmission shaft is meshedly connected with the outer circumferential surface of one end of the first lower connecting shaft away from the first power mechanism through gears.

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

[0019] a first rotating motor and a first coupling, wherein an output end of the first rotating motor is connected to an input end of the first transmission mechanism through the first coupling;

[0020] The second power mechanism includes:

[0021] A second rotating motor and a second coupling, wherein an output end of the second rotating motor is connected to an input end of the second transmission mechanism through the second coupling.

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

[0023] a coaxial assembly, wherein an input end of the coaxial assembly is connected to an output end of the second power mechanism;

[0024] A second transmission shaft, one end of the second transmission shaft is connected to the output end of the coaxial component, and the other end of the second transmission shaft is meshed and connected to the second rotating shaft.

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

[0026] a second biasing assembly, wherein an input end of the second biasing assembly is connected to an output end of the second power mechanism;

[0027] A second transmission shaft, one end of the second transmission shaft is connected to the output end of the second biasing assembly, and the other end of the second transmission shaft is meshedly connected to the second rotating shaft.

[0028] In some specific embodiments, one end of the first transmission shaft close to the first rotating shaft is meshed and connected with the first rotating shaft via a bevel gear;

[0029] One end of the second transmission shaft close to the second rotating shaft is meshed and connected to the second rotating shaft via a bevel gear.

[0030] In some specific embodiments, it also includes:

[0031] Installation Department;

[0032] The installation part comprises:

[0033] A tower body, wherein the first power mechanism and the second power mechanism are arranged in the tower body;

[0034] A frame, wherein the first rotating shaft and the second rotating shaft are mounted on the frame;

[0035] The first transmission mechanism and the second transmission mechanism are provided in the box body, and the input end and the output end of the first transmission mechanism and the second transmission mechanism extend to the inside of the tower body and the frame body respectively.

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

[0037] A counter-rotating blade engine based on the same concept comprises: a counter-rotating blade operating device and a wind tunnel as described in any of the above specific embodiments;

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

[0039] The counter-rotating blade operation device of the present invention replaces the coaxial connection form of the original single power device by the output end of the first power mechanism and the output end of the second power mechanism arranged along the radial direction of the first rotating shaft and the second rotating shaft, thereby simplifying the connection structure, reducing the difficulty of maintenance and management, and avoiding the coaxial connection form affecting the aerodynamic performance of the first blade and the second blade. Through the first biasing component of the first transmission mechanism, the input end and the output end of the first transmission mechanism are staggered, so that the spacing distance between the input end of the first transmission mechanism and the input end of the second transmission mechanism can be increased, thereby maintaining the overall length of the shaft system unchanged, and increasing the space available for the first power mechanism and the second power mechanism, avoiding the first power mechanism and the second power mechanism from affecting the output power due to size restrictions, and ensuring the power transmission effect. In addition, the first power mechanism and the second power mechanism can play a supporting role on the shaft system as a whole, thereby ensuring the stable operation of the shaft system, further improving the power transmission effect, and reducing the impact on the aerodynamic performance of the first blade and the second blade.

[0040] The counter-rotating blade engine of the present invention has the same beneficial effects as the counter-rotating blade operating device described above because it includes the counter-rotating blade operating device described above, so it will not be described in detail here.

[0041] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A schematic diagram of a counter-rotating blade operating device in an embodiment of the present invention is shown;

[0044] Figure 2 A schematic diagram showing the connection between the first rotating shaft and the first transmission shaft, the second rotating shaft and the second transmission shaft on the frame in an embodiment of the present invention is shown;

[0045] Figure 3 It shows a schematic diagram of the connection between the first power mechanism and the second power mechanism and the tower body in an embodiment of the present invention;

[0046] Figure 4A schematic diagram showing the connection between the coaxial component and the first biasing component and the box body in an embodiment of the present invention is shown;

[0047] Figure 5 A schematic diagram of a frame in an embodiment of the present invention is shown;

[0048] Figure 6 A schematic diagram of a box in an embodiment of the present invention is shown;

[0049] Figure 7 A schematic diagram of a counter-rotating blade engine in an embodiment of the present invention is shown.

[0050] In the figure, 100, first rotating shaft; 110, first blade; 120, first auxiliary bevel gear; 200, second rotating shaft; 210, second 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, The second transmission mechanism; 610, coaxial assembly; 620, second transmission shaft; 700, mounting portion; 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; 721, main support rod; 722, auxiliary support rod; 723, second top plate; 724, second bottom plate; 725, rib plate; 730, box body; 731, third top plate; 732, third bottom plate; 733, second mounting plate; 800, wind tunnel. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Reference Figure 1The present invention provides a counter-rotating blade operation device, comprising: a first rotating shaft 100 and a second rotating shaft 200, a first power mechanism 300 and a second power mechanism 400, a first transmission mechanism 500 and a second transmission mechanism 600, which are arranged concentrically. A first blade 110 is arranged at one end of the first rotating shaft 100, and a second blade 210 is arranged at one end of the second rotating shaft 200; 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 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; a first biasing component 510 is arranged in the first transmission mechanism 500, and the input end of the first transmission mechanism 500 and the output end of the first transmission mechanism 500 are staggered through the first biasing component 510.

[0053] Specifically, the first rotating shaft 100 and the second rotating shaft 200 are arranged concentrically and colinearly, and the axes of the first rotating shaft 100 and the second rotating shaft 200 coincide. A first blade 110 is arranged at one end of the first rotating shaft 100, and the first rotating shaft 100 can drive the first blade 110 to rotate. A second blade 210 is arranged at one end of the second rotating shaft 200, and the second rotating shaft 200 can drive the second blade 210 to rotate. The first power mechanism 300 is arranged perpendicular to the axis of the first rotating shaft 100 along the radial direction of the first rotating shaft 100, so that the output end of the first power mechanism 300 can also be arranged perpendicular to the axis of the first rotating shaft 100 along the radial direction of the first rotating shaft 100. The output end of the first power mechanism 300 is transmission-connected to one end of the first rotating shaft 100 away from the first blade 110, and the first rotating shaft 100 can be driven to rotate through the first power mechanism 300. 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 transmission-connected to the end of the second rotating shaft 200 away from the second blade 210, and the second rotating shaft 200 can be driven to rotate by the second power mechanism 400. The first power mechanism 300 and the second power mechanism 400 arranged along the radial direction of the first rotating shaft 100 and the second rotating shaft 200 replace the coaxial connection form of the original single power device, thereby simplifying the connection structure, reducing the difficulty of maintenance and management, and avoiding the coaxial connection form affecting the aerodynamic performance of the first blade 110 and the second blade 210. 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 to the output end of the first power mechanism 300, the output end of the first transmission mechanism 500 is connected to the end of the first rotating shaft 100 away from the first blade 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 to the output end of the second power mechanism 400, the output end of the second transmission mechanism 600 is connected to the end of the second rotating shaft 200 away from the second blade 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 shaft system as a whole, thereby reducing the span of each part of the shaft system, reducing the vibration frequency and amplitude of the shaft system during the transmission process, ensuring the overall stable operation of the shaft system, further improving the power transmission effect, and reducing the impact on the aerodynamic performance of the first blade 110 and the second blade 210.Among them, a first biasing component 510 is arranged in the first transmission mechanism 500, and the first biasing component 510 as a whole forms a bending structure, so that the input end and the output end of the first transmission mechanism 500 can be staggered with each other through the first biasing component 510, so that when the spacing distance between the output end of the first transmission mechanism 500 and the output end of the second transmission mechanism 600 remains unchanged, the spacing distance between the input end of the first transmission mechanism 500 and the input end of the first transmission mechanism 500 can be increased, thereby maintaining the overall length of the shaft system unchanged, especially maintaining the length of the first rotating shaft 100 and the second rotating shaft 200 unchanged, while increasing the space that can be occupied by the first power mechanism 300 and the second power mechanism 400 during installation, removing the installation size restrictions on the first transmission mechanism 500 and the second transmission mechanism 600, avoiding the first power mechanism 300 and the second power mechanism 400 from being affected by size restrictions. The output power is affected, and the power transmission effect is guaranteed.

[0054] Furthermore, the first rotating shaft 100 is disposed in the second rotating shaft 200 along the axial direction of the second rotating shaft 200, so that the axis of the first rotating shaft 100 is colinear with the axis of the second rotating shaft 200. The volumes of the first rotating shaft 100 and the second rotating shaft 200 can be reduced.

[0055] Further, the length dimension of the second rotating shaft 200 is greater than the length dimension 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 blade 110 is arranged on one end of the first rotating shaft 100, the second blade 210 can also be arranged on the same end of the second rotating shaft 200 corresponding to the first rotating shaft 100.

[0056] Furthermore, the first paddle 110 can be detachably mounted on the first rotating shaft 100 , and the second paddle 210 can be detachably mounted on the second rotating shaft 200 , so as to facilitate installation and disassembly.

[0057] In some specific embodiments of the present invention, referring to Figure 1 , also includes: a mounting portion 700; a first rotating shaft 100 and a second rotating shaft 200 are arranged at the top of the mounting portion 700; a first power mechanism 300 and a second power mechanism 400 are arranged at the bottom of the mounting portion 700; a first transmission mechanism 500 and a second transmission mechanism 600 are arranged in the middle of the mounting portion 700.

[0058] Specifically, the concentrically arranged first rotating shaft 100 and the second rotating shaft 200 are horizontally arranged on the top of the mounting portion 700, and the first power mechanism 300 and the second power mechanism 400 are vertically arranged on 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 mounted in the middle of the mounting portion 700, so that the first transmission mechanism 500 and the second transmission mechanism 600 can also be respectively arranged along the radial direction of the first rotating shaft 100 and the second rotating shaft 200, and the input end of the first transmission mechanism 500 can extend toward the output end close to the first power mechanism 300 and be transmission-connected to the output end of the first power mechanism 300, the output end of the first transmission mechanism 500 can extend toward the end of the first rotating shaft 100 away from the first paddle 110 and be transmission-connected to 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 toward the output end of the second power mechanism 400 and be transmission-connected to the output end of the second power mechanism 400, and the output end of the second transmission mechanism 600 can extend toward the end of the second rotating shaft 200 away from the second paddle 210 and be transmission-connected to the end of the second rotating shaft 200 away from the second paddle 210. By providing 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 separated. The first rotating shaft 100 and the second rotating shaft 200 are arranged perpendicular to the axis of the first rotating shaft 100 and the second rotating shaft 200, respectively, which can simplify the connection structure, reduce the difficulty of maintenance and management, and can also prevent the airflow when the first blade 110 and the second blade 210 are running from 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 operation stability of the shaft system, improving the power transmission effect, and then reducing the impact on the aerodynamic performance of the first blade 110 and the second blade 210. In addition, by moving the mounting part 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 driven to move together, so as to facilitate the change of the overall setting position and facilitate the adjustment of the measurement environment as needed.

[0059] In some specific embodiments of the present invention, referring to Figure 1 The first transmission mechanism 500 includes: 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 meshedly connected to the first rotating shaft 100.

[0060] Specifically, the input end and the output end of the first biasing component 510 are mutually staggered, the output end of the first biasing component 510 is arranged along the radial direction of the first rotating shaft 100, perpendicular to the axis of the first rotating shaft 100 and toward the end of the first rotating shaft 100 away from the first blade 110, the input end of the first biasing component 510 is arranged along the radial direction of the first rotating shaft 100, perpendicular to the axis of the first rotating shaft 100 and toward the output end of the first power device, and the input end of the first biasing component 510 forms the input end of the first transmission mechanism 500, which can be at the output end of the first biasing component 510 and the output end of the second transmission mechanism 600. When the spacing distance between the first biasing assembly 510 and the first transmission mechanism 500 remains unchanged, the spacing distance between the input end of the first biasing assembly 510 and the input end of the first transmission mechanism 500 is increased, thereby increasing the space available for 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 restriction of the first transmission mechanism 500 and the second transmission mechanism 600 due to the length of the first rotating shaft 100 and the second rotating shaft 200, avoiding the first power mechanism 300 and the second power mechanism 400 from being affected by the size restriction and ensuring the power transmission effect. One end of the first transmission shaft 520 is connected to the output end of the first biasing assembly 510, and the first biasing assembly 510 can drive the first transmission shaft 520 to rotate, and the other end of the first transmission shaft 520 is meshed and connected with one end of the first rotating shaft 100 away from the first blade 110, so that the first rotating shaft 100 can be driven to rotate again. The airflow during the operation of the first blade 110 and the second blade 210 is prevented from 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 operation stability of the shaft system, improving the power transmission effect, and reducing the impact on the aerodynamic performance of the first blade 110 and the second blade 210. In addition, through the setting of the first offset component 510, a supporting role is played on the shaft system as a whole, thereby reducing the span of the first transmission shaft 520, reducing the vibration frequency and amplitude of the shaft system during the transmission process, ensuring the operation stability of the shaft system as a whole, further improving the power transmission effect, and reducing the impact on the aerodynamic performance of the first blade 110 and the second blade 210.

[0061] Further, refer to Figure 2A first bevel gear is provided at one end of the first transmission shaft 520 away from the first biasing assembly 510, and a first auxiliary bevel gear 120 is provided at one end of the first rotating shaft 100 away from the first blade 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 specific embodiments of the present invention, referring to Figure 4 The first biasing assembly 510 includes: a first upper connecting shaft 511 and a first lower connecting shaft 512. One end of the first upper connecting shaft 511 is connected to an end of the first transmission shaft 520 away from the first rotating shaft 100; one end of the first lower connecting shaft 512 is 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 along the radial direction of the first rotating shaft 100, and the first upper connecting shaft 511 and the first lower connecting shaft 512 are staggered and meshedly connected.

[0063] Specifically, the top end of the first upper connecting shaft 511 forms the output end of the first biasing assembly 510, which is used to be connected to the end of the first transmission shaft 520 away from the first rotating shaft 100, and the first transmission shaft 520 can be driven to rotate by the rotation of the first upper connecting shaft 511. The bottom end of the first lower connecting shaft 512 forms the input end of the first biasing assembly 510, which is used to be connected to the output end of the first power mechanism 300, and the first lower connecting shaft 512 can be driven to rotate by the rotation of 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 perpendicular to the axis of the first rotating shaft 100, and the bottom end of the first upper connecting shaft 511 and the top end of the first lower connecting shaft 512 are adjacent to each other, and the outer peripheral surface of the bottom end of the first upper connecting shaft 511 and the outer peripheral surface of the top end of the first lower connecting shaft 512 are meshed and connected with each other, so that the rotation of the first lower connecting shaft 512 can drive the first upper connecting shaft 511 to rotate, thereby realizing the staggered setting between the input end and the output end of the first biasing assembly 510.

[0064] In some specific embodiments of the present invention, referring to Figure 1 The second transmission mechanism 600 includes: a coaxial component 610 and a second transmission shaft 620. The input end of the coaxial component 610 is connected to the output end of the second power mechanism 400; one end of the second transmission shaft 620 is connected to the output end of the coaxial component 610, and the other end of the second transmission shaft 620 is meshed and connected with the second rotating shaft 200.

[0065] Specifically, the coaxial component 610 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 coaxial component 610 faces the end of the second rotating shaft 200 away from the second blade 210, and the input end of the second transmission mechanism 600 is formed by the input end of the coaxial component 610. One end of the second transmission shaft 620 is connected to the output end of the coaxial component 610, and the second transmission shaft 620 can be driven to rotate through the coaxial component 610. The other end of the second transmission shaft 620 is meshed and connected with the end of the second rotating shaft 200 away from the second blade 210, so as to drive the second rotating shaft 200 to rotate. The airflow during the operation of the first blade 110 and the second blade 210 is prevented from 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 operation stability of the shaft system, improve the power transmission effect, and reduce the influence on the aerodynamic performance of the first blade 110 and the second blade 210. Furthermore, by providing the coaxial component 610, a supporting effect is played on the shaft system as a whole, thereby reducing the span of the second transmission shaft 620, reducing the vibration frequency and amplitude of the shaft system during the transmission process, ensuring the overall stable operation of the shaft system, further improving the power transmission effect, and reducing the impact on the aerodynamic performance of the first blade 110 and the second blade 210.

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

[0067] Specifically, the input end and the output end of the second biasing assembly are staggered with each other, 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 toward the end of the second rotating shaft 200 away from the second blade 210, 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 toward the output end of the second power device, and the input end of the second transmission mechanism 600 is formed by the input end of the second biasing assembly, so that the spacing distance between the output end of the second biasing assembly and the output end of the first biasing assembly 510 is not When the length of the first and second rotating shafts 100 and 200 is changed, the spacing distance between the input end of the second biasing assembly and the input end of the first biasing assembly 510 is increased, thereby further increasing the space available for 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 restriction of the first transmission mechanism 500 and the second transmission mechanism 600 due to the length of the first rotating shaft 100 and the second rotating shaft 200, avoiding the first power mechanism 300 and the second power mechanism 400 from being affected by the size restriction and ensuring the power transmission effect. One end of the second transmission shaft 620 is connected to the output end of the second biasing assembly, and the second transmission shaft 620 can be driven to rotate through the second biasing assembly, and the other end of the second transmission shaft 620 is meshedly connected with one end of the second rotating shaft 200 away from the second blade 210, thereby being able to drive the second rotating shaft 200 to rotate. The airflow during the operation of the first blade 110 and the second blade 210 is prevented from 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 operation stability of the shaft system, improving the power transmission effect, and reducing the impact on the aerodynamic performance of the first blade 110 and the second blade 210. In addition, through the setting of the second offset component, a supporting role is played on the shaft system as a whole, thereby reducing the span of the second transmission shaft 620, reducing the vibration frequency and amplitude of the shaft system during the transmission process, ensuring the operation stability of the shaft system as a whole, further improving the power transmission effect, and reducing the impact on the aerodynamic performance of the first blade 110 and the second blade 210.

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

[0069] Further, when the second transmission mechanism 600 includes a second biasing assembly and a second transmission shaft 620, the second biasing assembly includes: a second upper connecting shaft and a second lower connecting shaft. The top end of the second upper connecting shaft forms the output end of the second biasing assembly, which is used to be connected to the end of the second transmission shaft 620 away from the second rotating shaft 200, and the second transmission shaft 620 can be driven to rotate by the rotation of the second upper connecting shaft. The bottom end of the second lower connecting shaft forms the input end of the first biasing assembly 510, which is used to be connected to the output end of the second power mechanism 400, and the second lower connecting shaft can be driven to rotate by the rotation of the output end of the second power mechanism 400. The second upper connecting shaft and the second lower connecting shaft are both arranged along the radial direction of the first rotating shaft 100 and perpendicular to the axis of the first rotating shaft 100, and the bottom end of the second upper connecting shaft and the top end of the second lower connecting shaft are adjacently arranged, and the outer circumferential surface of the bottom end of the second upper connecting shaft and the outer circumferential surface of the top end of the second lower connecting shaft are meshed and connected with each other, so that the second upper connecting shaft can be driven to rotate by the rotation of the second lower connecting shaft, thereby realizing the misalignment arrangement between the input end and the output end of the second biasing assembly.

[0070] In some specific embodiments of the present invention, referring to Figure 3 , the first power mechanism 300 includes: a first rotating motor 310 and a first coupling 320. The output end of the first rotating motor 310 is connected to the input end of the first transmission mechanism 500 through the first coupling 320; the second power mechanism 400 includes: a second rotating motor 410 and a second coupling 420. The output end of the second rotating motor 410 is connected to the input end of the second transmission mechanism 600 through the second coupling 420. Specifically, the first rotating motor 310 is vertically arranged so that the output end of the first rotating motor 310 is arranged opposite to the first lower connecting shaft 512, and the output end of the first rotating motor 310 is connected to the bottom end of the first lower connecting shaft 512 through the first coupling 320. The second rotating motor 410 is vertically arranged so that the output end of the second rotating motor 410 is arranged opposite to the second lower connecting shaft, and the output end of the second rotating motor 410 is connected to the bottom end of the second lower connecting shaft through the second coupling 420. Alternatively, when the second transmission mechanism 600 includes a coaxial component 610 and a second transmission shaft 620 , the output end of the second rotary motor 410 is connected to the input end of the coaxial component 610 via the second coupling 420 .

[0071] In some specific embodiments of the present invention, referring to Figure 1The mounting part 700 includes: 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 mounted on the frame body 720; the first transmission mechanism 500 and the second transmission mechanism 600 are passed through 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 to the tower body 710 and the frame body 720 respectively.

[0072] Specifically, refer to Figure 5 The tower body 710 is composed of a plurality of channel steels. A first bottom plate 712 is horizontally laid at the bottom of the tower body 710, a first top plate 711 is horizontally laid at the top of the tower body 710, and a first side plate is covered around the outer side of the tower body 710, thereby completing the further erection and reinforcement of 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 respectively installed on the two motor auxiliary support assemblies 7121, so that the first rotating motor 310 and the second rotating motor 410 can be vertically arranged in the tower body 710. A mounting plate is horizontally laid in the tower body 710, and one end of the first rotating motor 310 and the second rotating motor 410 away from the motor auxiliary support assembly 7121 is fixedly connected to the mounting plate, and the output ends of the first rotating motor 310 and the second rotating motor 410 are both arranged through the mounting plate, thereby completing the installation of the first rotating motor 310 and the second rotating motor 410.

[0073] Furthermore, a reinforcing rod 7111 is transversely fixedly disposed on the first top plate 711 , and the stability of the tower body 710 can be improved by the reinforcing rod 7111 .

[0074] Reference Figure 6 The frame 720 includes: 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 and surrounds the main support rod 721, the second top plate 723 is horizontally arranged on the top of the main support rod 721 and the auxiliary support rod 722, the second bottom plate 724 is horizontally arranged on the bottom of the support rod and the auxiliary support rod 722, and the first rotating shaft 100 and the second rotating shaft 200 are rotatably arranged on the second top plate 723, so that the installation of the first rotating shaft 100 and the second rotating shaft 200 can be completed.

[0075] Furthermore, it also includes: ribs 725. There are multiple ribs 725, and the multiple ribs 725 are evenly arranged along the axial direction of the main support rod 721. Each rib 725 is horizontally arranged and connected to the main support rod 721 and the auxiliary support rod 722, so as to complete the installation of the ribs 725 and improve stability.

[0076] Furthermore, 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 by countersunk screws.

[0077] Furthermore, 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 impact of airflow and make the aerodynamic performance data more accurate.

[0078] Reference Figure 4 The box body 730 is formed by splicing 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 against the bottom surface of the second bottom plate 724, and the bottom surface of the third bottom plate 732 is fixedly abutted against 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 penetrated through the second mounting plate 733 and is rotatably connected to the top surface of the third bottom plate 732, and the first lower connecting shaft 512 of the first biasing assembly 510 of the first transmission mechanism 500 is rotatably penetrated through the third bottom plate 732 and is rotatably connected to 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 provided through the second bottom plate 724 and the third top plate 731 in sequence and connected to the first upper connecting shaft 511, and the output end of the first transmission shaft 520 of the first transmission mechanism 500 is provided through the second top plate 723 and meshedly connected to the first rotating shaft 100. The coaxial assembly 610 of the second transmission mechanism 600 is rotatably provided 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 provided through the second bottom plate 724 and the third top plate 731 in sequence and connected to the coaxial assembly 610, and the output end of the second transmission shaft 620 of the second transmission mechanism 600 is provided through the second top plate 723 and meshedly connected to 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 penetrated through the second mounting plate 733 and is rotatably connected to the top surface of the third bottom plate 732, and the second lower connecting shaft of the second biasing assembly of the second transmission mechanism 600 is rotatably penetrated through the third bottom plate 732 and is rotatably connected to 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 penetrated through the second bottom plate 724 and the third top plate 731 in sequence and is connected to the second upper connecting shaft, and the output end of the second transmission shaft 620 of the second transmission mechanism 600 is penetrated through the second top plate 723 and meshedly connected to the second rotating shaft 200.

[0080] In some specific embodiments of the present invention, the multiple side walls of the box body 730 are detachably connected. Specifically, the second side plate is detachably connected to the third top plate 731 and the third bottom plate 732, which is convenient for installation and maintenance.

[0081] Reference Figure 7 The present invention also provides a contra-rotating blade engine, comprising: a contra-rotating blade operating device and a wind tunnel 800 as in any of the above-mentioned specific embodiments; a first rotating shaft 100 and a second rotating shaft 200 of the contra-rotating blade operating device are arranged along the axial direction of the wind tunnel 800. The coaxial connection form of the original single power device is replaced, thereby simplifying the connection structure and reducing the difficulty of maintenance and management. At the same time, the airflow when the first blade 110 and the second blade 210 are running is prevented from 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 operation stability of the shaft system, improving the power transmission effect, and avoiding the influence of the coaxial connection form on the aerodynamic performance of the first blade 110 and the second blade 210. Furthermore, the staggered arrangement between the input end and the output end of the first transmission mechanism 500 can increase the spacing between the input end of the first transmission mechanism 500 and the input end of the second transmission mechanism 600, thereby increasing the space available for the first power mechanism 300 and the second power mechanism 400 while maintaining the overall length of the shaft system unchanged, thereby avoiding the first power mechanism 300 and the second power mechanism 400 from being affected by size limitations and ensuring the power transmission effect. Finally, the first power mechanism 300 and the second power mechanism 400 can play a supporting role on the shaft system as a whole, thereby ensuring the stable operation of the shaft system, further improving the power transmission effect, and reducing the impact on the aerodynamic performance of the first blade 110 and the second blade 210.

[0082] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

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, wherein a first blade (110) is arranged at one end of the first rotating shaft (100), and a second blade (210) is arranged at one end of the second rotating shaft (200); A first power mechanism (300) and a second power mechanism (400), wherein an output end of the first power mechanism (300) and an output end of the second power mechanism (400) are respectively arranged along the radial direction of the first rotating shaft (100) and the second rotating shaft (200); a first transmission mechanism (500) and a second transmission mechanism (600), wherein the first power mechanism (300) is connected to the first rotating shaft (100) via the first transmission mechanism (500), and the second power mechanism (400) is connected to the second rotating shaft (200) via the second transmission mechanism (600); A first biasing component (510) is arranged in the first transmission mechanism (500), and an input end of the first transmission mechanism (500) and an output end of the first transmission mechanism (500) are staggered by the first biasing component (510).

2. The counter-rotating blade operating device according to claim 1, characterized in that: The first transmission mechanism (500) comprises: A first biasing component (510), wherein an input end of the first biasing component (510) is connected to an output end of the first power mechanism (300); A first transmission shaft (520), 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).

3. The counter-rotating blade operation device according to claim 2, characterized in that: The first biasing component (510) comprises: a first upper connecting shaft (511), one end of the first upper connecting shaft (511) being connected to an end of the first transmission shaft (520) away from the first rotating shaft (100); a first lower connecting shaft (512), one end of the first lower connecting shaft (512) being connected to an 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 the first upper connecting shaft (511) and the first lower connecting shaft (512) are arranged in a staggered manner; The outer circumferential surface of one end of the first upper connecting shaft (511) away from the first transmission shaft (520) is meshedly connected with the outer circumferential surface of one end of the first lower connecting shaft (512) away from the first power mechanism (300) via gears.

4. The counter-rotating blade operating device according to claim 1, characterized in that: The first power mechanism (300) comprises: A first rotating motor (310) and a first coupling (320), wherein an output end of the first rotating motor (310) is connected to an input end of the first transmission mechanism (500) via the first coupling (320); The second power mechanism (400) comprises: A second rotating motor (410) and a second coupling (420), wherein the output end of the second rotating motor (410) is connected to the input end of the second transmission mechanism (600) via the second coupling (420).

5. The counter-rotating blade operation device according to claim 2, characterized in that: The second transmission mechanism (600) comprises: a coaxial component (610), wherein an input end of the coaxial component (610) is connected to an output end of the second power mechanism (400); A second transmission shaft (620), one end of the second transmission shaft (620) is connected to the output end of the coaxial component (610), and the other end of the second transmission shaft (620) is meshingly connected to the second rotating shaft (200).

6. The counter-rotating blade operation device according to claim 2, characterized in that: The second transmission mechanism (600) comprises: A second biasing component, wherein an input end of the second biasing component is connected to an output end of the second power mechanism (400); A second transmission shaft (620), one end of the second transmission shaft (620) is connected to the output end of the second biasing assembly, and the other end of the second transmission shaft (620) is meshingly connected to the second rotating shaft (200).

7. The counter-rotating blade operation device according to claim 5 or 6, characterized in that: One end of the first transmission shaft (520) close to the first rotating shaft (100) is meshedly connected to the first rotating shaft (100) via a bevel gear; One end of the second transmission shaft (620) close to the second rotating shaft (200) is meshedly connected to the second rotating shaft (200) via a bevel gear.

8. The counter-rotating blade operation device according to claim 1, characterized in that: Also includes: Mounting portion (700); The mounting portion (700) comprises: A tower body (710), wherein the first power mechanism (300) and the second power mechanism (400) are arranged in the tower body (710); A frame (720), wherein the first rotating shaft (100) and the second rotating shaft (200) are mounted on the frame (720); A box body (730), 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 onto the frame body (720) respectively.

9. The counter-rotating blade operating device according to claim 8, characterized in that: The multiple side walls of the box body (730) are detachably connected.

10. A counter-rotating blade engine, characterized in that: include: The contra-rotating blade operating device and wind tunnel (800) according to any one of claims 1 to 9; The concentrically arranged first rotating shaft (100) and second rotating shaft (200) of the counter-rotating blade operating device are arranged along the axial direction of the wind tunnel (800).

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