A rotor tower and iron bird table share a base platform
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA HELICOPTER RES & DEV INST
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-29
AI Technical Summary
Existing technologies make it difficult to achieve a shared bottom platform design for the rotor tower and the iron bird platform, resulting in wasted resources and inconvenient maintenance of the test equipment.
A shared bottom platform for the rotor tower and the iron bird platform was designed. The middle platform and the iron bird transition connector are connected by the platform body, the reducer mounting base plate, the motor mounting base, etc., so as to realize the shared bottom platform for the rotor tower and the iron bird platform.
The design achieves a shared bottom platform for the rotor tower and the iron bird stand, meeting the testing requirements of the rotor tower and supporting the installation and maintenance of the iron bird stand, thereby improving equipment utilization and maintenance convenience.
Smart Images

Figure CN224297440U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of rotor tower and iron bird platform, specifically relating to a common bottom platform for rotor tower and iron bird platform. Background Technology
[0002] The full-system test bench can perform both rotor tower tests and iron bird test tests. Rotor tower tests require hovering without ground effect, necessitating a relatively high bench height. Iron bird tests, on the other hand, require support for the entire helicopter to apply power and loads, and have no strict height requirements. Iron bird tests are generally designed with functional connections in mind, while also considering ease of installation and maintenance, resulting in a height significantly lower than that of the rotor tower.
[0003] To enable the entire system test bench to serve multiple purposes, the bottom platform design needs to allow the rotor tower and the iron bird platform to be used interchangeably. Utility Model Content
[0004] Purpose of this application: This application aims to realize a design for a shared bottom platform for both the rotor tower and the iron bird test platform. The bottom platform is designed to include a bottom platform body and an iron bird support platform. The design requires that the bottom platform body can be combined with the middle platform and the upper platform to achieve the rotor tower test configuration, and the iron bird support platform is used to install the iron bird fuselage transition connectors to achieve the iron bird test platform configuration. The bottom platform is designed to accommodate the shared bottom platform for both the rotor tower and the iron bird test platform.
[0005] This application provides a common bottom platform for a rotor tower and an iron bird platform. The bottom platform consists of a civil engineering foundation mounting base, a motor mounting base, a lower reinforcing rib plate of the bottom platform, a platform shell, shell connecting fasteners, an iron bird load-bearing platform mounting base, an iron bird load-bearing platform, a reducer mounting base plate, an upper reinforcing rib plate of the bottom platform, a bottom platform flat plate, and positioning pins.
[0006] The civil engineering foundation mounting base is connected to the platform shell by bolts; the motor mounting base is mounted on the upper part of the motor mounting base by bolts; the lower reinforcing rib plate of the bottom platform is connected to the platform shell by welding; the platform shells are connected to each other by welding and shell connecting fasteners; the shell connecting fasteners are distributed above and below the shell welds; the iron bird load-bearing platform mounting base is welded to the platform shell, and the iron bird load-bearing platform is connected to the iron bird load-bearing platform mounting base by bolts; the reducer mounting base plate is fixed to the bottom of the iron bird load-bearing platform by bolts; the upper reinforcing rib plate of the bottom platform is connected to the platform shell by welding; the top plate of the bottom platform is welded to the upper reinforcing rib plate of the bottom platform, and the positioning pin is fixed to the upper reinforcing rib plate of the bottom platform by bolts.
[0007] Preferably, the civil engineering foundation mounting base consists of a top plate, radial stiffeners, circumferential stiffeners, and a bottom plate. The bottom of the civil engineering foundation mounting base is pre-embedded in the civil engineering foundation, and the top and bottom platforms are connected by bolts.
[0008] Preferably, the motor mounting base consists of a motor civil foundation mounting plate and a motor mounting base. The motor civil foundation mounting plate is pre-embedded and connected to the civil foundation. The motor mounting base and the mounting plate are connected by bolts. The motor is connected to the top of the motor mounting base by bolts.
[0009] Preferably, the lower reinforcing rib plate of the bottom platform is composed of radial reinforcing rib plates and a bottom plate, which are welded to the platform shell; the plates of the platform shell are welded together.
[0010] Preferably, the shell connecting fastener consists of a reinforcing rib plate and a vertical plate, which are welded together and connected by bolts. The reinforcing rib plate and the vertical plate are simultaneously welded to the shell of the platform.
[0011] Preferably, the iron bird load-bearing platform mounting base consists of a horizontal mounting plate and a vertical plate, which are welded together and simultaneously welded to the platform shell. The iron bird load-bearing platform is connected to the horizontal mounting plate through bolt holes.
[0012] The iron bird load-bearing platform consists of an iron bird mounting plate, vertical beams, diagonal bracing beams, horizontal beams, and a load-bearing platform fixing plate. The reducer mounting base plate is fixed to the iron bird load-bearing platform with bolts. The iron bird mounting plate, vertical beams, diagonal bracing beams, horizontal beams, and load-bearing platform fixing plate are welded together.
[0013] The reducer mounting base plate is fixed to the iron bird load-bearing platform with bolts, and is also connected to the reducer housing with bolts.
[0014] The top plate of the base platform is welded together from horizontal beams, vertical beams and a plate, and the positioning cone pins are installed on the upper reinforcing rib plate of the bottom platform by bolts.
[0015] This application has the following technical effects:
[0016] This application implements a bottom platform design shared by a rotor tower and an iron bird stand. The bottom platform, through the platform body, reducer mounting plate, motor mounting base, etc., can connect to the middle platform, reducer, motor, etc., to meet the requirements of rotor tower testing, such as... Figure 12 As shown, the bottom platform connects to the iron bird transition connector via the iron bird load-bearing mounting platform, and then to the iron bird fuselage, thus meeting the iron bird testing requirements. Through this approach, a bottom platform design shared by the rotor tower and the iron bird test platform is achieved. Attached Figure Description
[0017] Figure 1 This is a diagram of the shared bottom platform for the rotor tower and the iron bird platform provided in the embodiments of this application;
[0018] Figure 2This is a diagram of the civil engineering foundation installation base provided in the embodiments of this application;
[0019] Figure 3 This is a diagram of the motor mounting bracket provided in an embodiment of this application;
[0020] Figure 4 This is a diagram of the lower (or upper) reinforcing rib plate of the bottom platform provided in the embodiments of this application;
[0021] Figure 5 This is a diagram of the platform housing provided in an embodiment of this application;
[0022] Figure 6 This is a diagram of the housing fixing connector provided in an embodiment of this application;
[0023] Figure 7 This is a diagram of the installation base of the iron bird load-bearing platform provided in the embodiments of this application;
[0024] Figure 8 This is a diagram of the iron bird load-bearing platform provided in the embodiments of this application;
[0025] Figure 9 This is a diagram of the speed reducer mounting base provided in an embodiment of this application;
[0026] Figure 10 This is a diagram of the bottom platform and top flat panel provided in an embodiment of this application;
[0027] Figure 11 This is a positioning cone pin diagram provided in the embodiments of this application;
[0028] Figure 12 This is a rendering of the rotor tower provided in an embodiment of this application. Detailed Implementation
[0029] Please see Figures 1-12 This invention provides a shared bottom platform for a rotor tower and an iron bird platform. The bottom platform consists of: 1. a platform foundation mounting base; 2. a motor mounting base; 3. a lower reinforcing rib plate of the bottom platform; 4. a platform shell; 5. shell connecting fasteners; 6. an iron bird load-bearing platform mounting base; 7. an iron bird load-bearing platform; 8. a reducer mounting base plate; 9. an upper reinforcing rib plate of the bottom platform; 10. a bottom platform flat plate; and 11. positioning pins. Figure 1As shown. The foundation mounting base 1 is bolted to the bottom platform body. The motor mounting base 2 has the motor bolted to its upper part. The lower reinforcing rib plate 3 of the bottom platform is welded to the platform shell 4. The platform shells 4 are connected to each other by welding and shell connecting fasteners 5. The shell connecting fasteners 5 are distributed above and below the weld seams of the shells 4. The iron bird load-bearing platform mounting base 6 is welded to the platform shell 4, and the iron bird load-bearing platform 7 is bolted to the iron bird load-bearing platform mounting base 6. The reducer mounting base plate 8 is bolted to the bottom of the iron bird load-bearing platform 7. The upper reinforcing rib plate 9 of the bottom platform is welded to the platform shell 4. The top plate 10 of the bottom platform is welded to the upper reinforcing rib plate 9 of the bottom platform, and the positioning pin 11 is bolted to the upper reinforcing rib plate 9 of the bottom platform.
[0030] The foundation mounting base 1 consists of a top plate 1.1, radial stiffeners 1.2, circumferential stiffeners 1.3, and a bottom plate 1.4. Figure 2 The bottom of the civil engineering foundation mounting base is pre-embedded in the civil engineering foundation, and the top is connected to the bottom platform by bolts.
[0031] The motor mounting base 2 consists of a motor civil engineering foundation mounting plate 2.1 and a motor mounting base 2.2, as follows: Figure 3 As shown. The motor mounting base plate is pre-embedded in the civil foundation, the motor mounting base and the mounting base plate are connected by bolts, and the motor is connected to the top of the motor mounting base by bolts.
[0032] The lower reinforcing rib plate 3 of the bottom platform consists of radial reinforcing rib plate 3.1 and bottom plate 3.2, as follows: Figure 4 As shown. Radial stiffeners 3.1 and base plate 3.2 are welded to the shell 4.
[0033] The four plates of the platform shell are welded together, such as... Figure 5 As shown.
[0034] The shell connecting fastener 5 consists of a reinforcing rib plate 5.1 and a vertical plate 5.2, which are welded together. The two vertical plates 5.2 are connected by bolts. Figure 6 As shown, the reinforcing rib 5.1 and the vertical plate 5.2 are welded to the shell 4 simultaneously.
[0035] The iron bird load-bearing platform mounting base 6 consists of a horizontal mounting plate 6.1 and a vertical plate 6.2, which are welded together. Figure 7 As shown, it is simultaneously welded to the housing 4. The iron bird load-bearing platform 7 is connected to the horizontal mounting plate 6.1 via bolt holes.
[0036] The iron bird load-bearing platform 7 consists of an iron bird mounting plate 1.1, a vertical beam 1.2, a diagonal bracing beam 1.3, a horizontal beam 1.4, and a load-bearing platform fixing plate 1.5, etc. Figure 8 As shown. The reducer mounting base plate 8 is fixed to the iron bird load-bearing platform 7 by bolts. The iron bird mounting plate 1.1, vertical beam 1.2, diagonal brace beam 1.3, horizontal beam 1.4, and load-bearing platform fixing plate 1.5 are welded together.
[0037] The reducer mounting base plate 8 is fixed to the iron bird support platform with bolts, and is also connected to the reducer housing with bolts. Figure 9 As shown.
[0038] The structure of the upper reinforcing rib plate 9 on the bottom platform is the same as that of the upper reinforcing rib plate 3 on the bottom platform.
[0039] The top plate 10 of the base platform is welded together from horizontal beams 10.1, vertical beams 10.2, and plate 10.3, as shown below. Figure 10 As shown.
[0040] The positioning cone pin 11 is bolted to the upper reinforcing rib plate 9 of the bottom platform, such as... Figure 11 As shown, this is used for positioning the bottom platform and the middle platform.
[0041] In this embodiment, the bottom platform is the main support structure at the bottom of the rotor tower, which is a load-bearing component that supports the power system and transmission system, and also a load-bearing component that supports the installation of the entire iron bird platform.
[0042] In one feasible implementation method, the specific implementation is as follows:
[0043] 1) The lower reinforcing rib plate 3 of the bottom platform is welded to the shell of the platform body 4;
[0044] 2) The platform shell connector 5 is welded to the platform shell 4 and is bolted together through the bolt holes between the vertical plates 5.2 of the platform shell connector;
[0045] 3) The mounting base 6 of the iron bird load-bearing platform is welded to the platform shell 4;
[0046] 4) The upper reinforcing rib plate 9 of the bottom platform is welded to the shell 4 of the platform;
[0047] 5) The reducer mounting base plate 8 is fixed to the iron bird load-bearing platform 7 with bolts;
[0048] 6) The iron bird load-bearing platform 7 and the iron bird load-bearing platform mounting base 6 are connected by bolts;
[0049] 7) The top plate 10 of the bottom platform is welded to the upper reinforcing rib plate 9 of the bottom platform;
[0050] 8) The positioning cone pin 11 is bolted to the upper reinforcing rib plate 9 of the bottom platform;
[0051] 9) The motor mounting base 2 is bolted to the embedded parts of the civil engineering foundation;
[0052] 10) The foundation mounting base 1 is bolted to the embedded parts of the foundation;
[0053] 11) The assembled bottom platform is connected by bolts through the lower reinforcing rib plate 3 of the bottom platform.
Claims
1. A common bottom platform for a rotor tower and an iron bird platform, characterized in that, The bottom platform consists of a civil engineering foundation mounting base, a motor mounting base, a lower reinforcing rib plate of the bottom platform, a platform shell, shell connecting fasteners, an iron bird load-bearing platform mounting base, an iron bird load-bearing platform, a reducer mounting base plate, an upper reinforcing rib plate of the bottom platform, a bottom platform flat plate, and positioning pins. The civil engineering foundation mounting base is connected to the platform shell by bolts; the motor mounting base is mounted on the upper part of the motor mounting base by bolts; the lower reinforcing rib plate of the bottom platform is connected to the platform shell by welding; the platform shells are connected to each other by welding and shell connecting fasteners; the shell connecting fasteners are distributed above and below the shell welds; the iron bird load-bearing platform mounting base is welded to the platform shell, and the iron bird load-bearing platform is connected to the iron bird load-bearing platform mounting base by bolts; the reducer mounting base plate is fixed to the bottom of the iron bird load-bearing platform by bolts; the upper reinforcing rib plate of the bottom platform is connected to the platform shell by welding; the top plate of the bottom platform is welded to the upper reinforcing rib plate of the bottom platform, and the positioning pin is fixed to the upper reinforcing rib plate of the bottom platform by bolts.
2. The bottom platform according to claim 1, characterized in that, The civil engineering foundation mounting base consists of a top plate, radial stiffeners, circumferential stiffeners, and a bottom plate. The bottom of the civil engineering foundation mounting base is pre-embedded in the civil engineering foundation, and the top and bottom platforms are connected by bolts.
3. The bottom platform according to claim 1, characterized in that, The motor mounting base consists of a motor civil foundation mounting plate and a motor mounting base. The motor civil foundation mounting plate is pre-embedded and connected to the civil foundation. The motor mounting base and the mounting plate are connected by bolts. The motor is connected to the top of the motor mounting base by bolts.
4. The bottom platform according to claim 1, characterized in that, The lower reinforcing rib of the bottom platform consists of radial reinforcing ribs and a base plate, which are welded to the platform shell. The plates of the platform shell are welded together.
5. The bottom platform according to claim 1, characterized in that, The shell connection fastener consists of a reinforcing rib plate and a vertical plate, which are welded together. The two vertical plates are connected by bolts, and the reinforcing rib plate and the vertical plate are welded to the shell of the platform.
6. The bottom platform according to claim 1, characterized in that, The Iron Bird load-bearing platform mounting base consists of a horizontal mounting plate and a vertical plate. The horizontal mounting plate and the vertical plate are welded together and welded to the platform shell. The Iron Bird load-bearing platform is connected to the horizontal mounting plate through bolt holes. The iron bird load-bearing platform consists of an iron bird mounting plate, vertical beams, diagonal bracing beams, horizontal beams, and a load-bearing platform fixing plate. The reducer mounting base plate is fixed to the iron bird load-bearing platform with bolts. The iron bird mounting plate, vertical beams, diagonal bracing beams, horizontal beams, and load-bearing platform fixing plate are welded together. The reducer mounting base plate is fixed to the iron bird load-bearing platform with bolts, and is also connected to the reducer housing with bolts. The top plate of the base platform is welded together from horizontal beams, vertical beams and a plate, and the positioning cone pins are installed on the upper reinforcing rib plate of the bottom platform by bolts.