CN120191504A - Helicopter sliding door movement device and sliding door - Google Patents
Helicopter sliding door movement device and sliding door Download PDFInfo
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- CN120191504A CN120191504A CN202510690250.0A CN202510690250A CN120191504A CN 120191504 A CN120191504 A CN 120191504A CN 202510690250 A CN202510690250 A CN 202510690250A CN 120191504 A CN120191504 A CN 120191504A
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- Prior art keywords
- slide rail
- joint
- pulley assembly
- double
- ear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
- B64C1/1407—Doors; surrounding frames
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/0621—Details, e.g. suspension or supporting guides
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/502—Application of doors, windows, wings or fittings thereof for vehicles for aircraft or spacecraft
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/531—Doors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
本发明公开了一种直升机滑动舱门运动装置及滑动舱门，该装置包括设置在座舱骨架上的上滑轨，设置在座舱地板上的下滑轨，以及设置在主减平台上的中滑轨；上滑轨通过上滑轮组件与滑动舱门连接，下滑轨通过下滑轮组件与滑动舱门连接，中滑轨通过中滑轮组件与滑动舱门连接；中滑轨上用于安装中滑轮组件的开口朝外，中滑轨长度比上滑轨和下滑轨短，且中滑轨前端无内侧弯曲；上滑轨上用于安装上滑轮组件的开口朝下，上滑轮组件能在上滑轨内上下小幅度移动；中滑轮组件包括Z向旋转滑轮组、摇臂组件和固定转向接头，摇臂组件一端与固定转向接头铰接，另一端与Z向旋转滑轮组铰接，可以实现滑动舱门在机上的顺利滑动和快速打开功能。
The invention discloses a helicopter sliding cabin door movement device and a sliding cabin door. The device comprises an upper slide rail arranged on a cabin frame, a lower slide rail arranged on a cabin floor, and a middle slide rail arranged on a main reduction platform; the upper slide rail is connected to the sliding cabin door through an upper pulley assembly, the lower slide rail is connected to the sliding cabin door through a lower pulley assembly, and the middle slide rail is connected to the sliding cabin door through a middle pulley assembly; an opening on the middle slide rail for installing the middle pulley assembly faces outward, the length of the middle slide rail is shorter than that of the upper slide rail and the lower slide rail, and the front end of the middle slide rail has no inner side bending; the opening on the upper slide rail for installing the upper pulley assembly faces downward, and the upper pulley assembly can move up and down in a small range in the upper slide rail; the middle pulley assembly comprises a Z-direction rotating pulley block, a rocker arm block and a fixed steering joint, one end of the rocker arm block is hinged to the fixed steering joint, and the other end is hinged to the Z-direction rotating pulley block, so that the sliding cabin door can slide smoothly and open quickly on the aircraft.
Description
Technical Field
The invention belongs to the field of helicopter structural design, and particularly relates to a helicopter sliding cabin door movement device and a sliding cabin door.
Background
The motion trail of the pulley component on the sliding rail in most helicopter sliding cabin door motion devices is parallel, the pulley component on each sliding rail has the same structure, the sliding rail has long length and bending trail, the sliding rail motion trail is the same, and the design is simpler.
For a small civil helicopter, the angles of the ground of the cabin and the main reduction platform are different, and the space size of the main reduction platform is limited, so that the sliding rails with short length and no bending track are needed to be used on the main reduction platform, and the design angles of the sliding rails on the ground of the cabin and the main reduction platform are different, so that the sliding cabin door moving device cannot be designed in the parallel arrangement mode, otherwise, the phenomenon of uncoordinated movement and movement clamping stagnation among pulley assemblies is easy to occur.
Therefore, it is necessary to provide a sliding cabin door movement device, which ensures the coordination of movement among the pulley assemblies, is not easy to generate movement clamping stagnation phenomenon, and ensures the smoothness of the movement of the sliding cabin door.
Disclosure of Invention
The invention provides a helicopter sliding cabin door movement device and a sliding cabin door, which are used for solving the problems that movement tracks of sliding rails are different, and particularly movement clamping stagnation is caused by the fact that the sliding rails are short in length and bending tracks cannot be set. The technical scheme is as follows:
In a first aspect, a sliding cabin door movement device of a helicopter is provided, comprising an upper sliding rail arranged on a cabin skeleton, a lower sliding rail arranged on a cabin floor, and a middle sliding rail arranged on a main damping platform;
The upper sliding rail is connected with the sliding cabin door through an upper pulley assembly, the lower sliding rail is connected with the sliding cabin door through a lower pulley assembly, and the middle sliding rail is connected with the sliding cabin door through a middle pulley assembly;
The opening of the middle sliding rail for installing the middle pulley assembly faces outwards, the length of the middle sliding rail is shorter than that of the upper sliding rail and the lower sliding rail, and the front end of the middle sliding rail is free from inner side bending;
The opening of the upper sliding rail for installing the upper pulley assembly faces downwards, and the upper pulley assembly can move up and down in the upper sliding rail in a small amplitude;
The middle pulley assembly comprises 1Z-direction rotating pulley block, a rocker arm assembly and a fixed steering joint, wherein the Z-direction rotating pulley block and the Z-direction rotating pulley block of the lower pulley assembly are identical in structure, one end of the rocker arm assembly is hinged with the fixed steering joint, the other end of the rocker arm assembly is hinged with the Z-direction rotating pulley block, one end of the rocker arm assembly can rotate around the fixed steering joint, and the other end of the rocker arm assembly can rotate around the Z-direction rotating pulley block.
Optionally, the front end of the upper sliding rail is bent into the cabin and then is arranged into a straight section, so that the upper part of the sliding cabin door slides along the upper sliding rail by a preset distance in the cabin direction through the upper pulley assembly and is then fixed on the straight section, and the lateral movement of the sliding cabin door is limited.
The upper pulley assembly comprises a transverse pulley, a fixing piece, a laterally adjustable support and a cabin door fixing bent pipe support, wherein the transverse pulley is fixed on the laterally adjustable support and the cabin door fixing bent pipe support through the fixing piece, the cabin door fixing bent pipe support is connected with a sliding cabin door, a tooth-shaped array structure is arranged on the mounting surface of the lower portion of the laterally adjustable support and matched with the tooth-shaped array structure on the cabin door fixing bent pipe support to adjust the lateral position of the upper pulley assembly, the gap between the outer diameter of the transverse pulley and an upper sliding rail is a preset gap to ensure that the upper pulley assembly slides smoothly on the upper sliding rail, and the tolerance of a polished rod area of the fixing piece is f9 and is in transition fit with a rolling bearing of the transverse pulley.
Alternatively, the transverse wheel comprises a rolling bearing and a lubrication bushing made of reinforced nylon and injection molded in a bushing groove of an outer ring of the rolling bearing by an injection molding process.
Optionally, an opening on the lower sliding rail for installing the lower pulley assembly is outwards, the front end of the lower sliding rail is bent towards the inside of the cabin, so that the lower part of the sliding cabin door obliquely slides towards the inside of the cabin along the lower sliding rail by a preset distance through the lower pulley assembly, and the front end of the lower sliding rail is free of a straight section.
Optionally, the lower pulley assembly comprises a Z-direction rotating pulley block and 1 toothed binaural joint.
The Z-direction rotating pulley block of the lower pulley assembly is hinged with the 1 toothed double-lug connector, the toothed double-lug connector is fixedly connected with the sliding cabin door, and the Z-direction rotating pulley block of the middle pulley assembly is identical to the Z-direction rotating pulley block of the middle pulley assembly in structure.
Optionally, the Z-direction rotating pulley block comprises 1 rotatable bogie, 2 transverse wheels and 1 vertical wheel,
Wherein, 2 transverse wheels are symmetrically arranged at two ends of the vertical wheel; the rotatable bogie is fixed with the mounting shaft through pins, the fit tolerance of the rotatable bogie and the mounting pins is H10/f9, a first boss is arranged at the joint of the rotatable bogie and the toothed double-lug joint, the gap between the double-lug joint on the toothed double-lug joint is larger than the height of the first boss, and the structures of the transverse wheel and the vertical wheel are identical with those of the transverse wheel of the upper pulley assembly.
Optionally, a rocker arm limiting device with adjustable length is arranged at the upper end of the front part of the middle sliding rail and used for limiting the rocker arm assembly to rotate inwards when the sliding cabin door is closed;
The rocker arm limiting device comprises a limiting support and a bolt, wherein a second boss is arranged at the front end of the limiting support, a through hole with internal threads is formed in the middle of the second boss, the head of the bolt is a third boss, flat surfaces are arranged at two ends of the third boss and used for rotating when the bolt is installed, and the bolt can adjust the front and rear positions of the bolt through rotation on the limiting support.
Optionally, the rocker arm assembly comprises a rocker arm, a first pressure spring connector, a second pressure spring connector and a pressure spring;
the rocker arm is provided with 3 double-lug connectors, wherein the first double-lug connector is used for being connected with a Z-direction rotary pulley block, the second double-lug connector is used for being connected with a first pressure spring connector, and the third double-lug connector is used for being connected with a fixed steering connector;
one end of the first pressure spring connector is a double-lug connector, the other end of the first pressure spring connector is a cylindrical shaft, the centers of the double-lug connector holes and the centers of the cylindrical shafts are in the same symmetrical plane, and a cylindrical hole for telescopic movement of the second pressure spring connector is formed in the cylindrical shaft;
The second compression spring connector is provided with a double-lug connector at one end and a cylindrical shaft at the other end, the centers of the upper holes of the double-lug connector and the cylindrical shaft are in the same symmetrical plane, the compression spring is sleeved on the outer side of the cylindrical shaft of the first compression spring connector, and the second compression spring connector is inserted into the cylindrical hole of the first compression spring connector;
The fixed steering joint comprises an upper lug, a middle lug and a lower lug, wherein the three lugs are parallel to the middle slide rail mounting surface, coaxial through holes are arranged on the three lugs and are used for connecting a third double-lug joint of the rocker arm through a pin shaft,
The middle ear piece is provided with a through hole for connecting the second pressure spring joint, and the connecting line of the center of the round hole of the through hole and the center of the upper hole of the second double-ear joint of the rocker arm is arranged outside the center of the first double-ear joint hole of the rocker arm.
In a second aspect, there is provided a sliding door comprising the helicopter sliding door movement apparatus of any of the first aspects.
The invention has the advantages that:
The middle sliding rail is provided with an opening which is used for installing the middle pulley assembly outwards, the length of the middle sliding rail is shorter than that of the upper sliding rail and the lower sliding rail, the front end of the middle sliding rail is free of inner side bending, the middle pulley assembly comprises 1Z-direction rotating pulley block, a rocker arm assembly and a fixed steering joint, the Z-direction rotating pulley block and the lower pulley assembly are identical in structure, one end of the rocker arm assembly is hinged with the fixed steering joint, the other end of the rocker arm assembly is hinged with the Z-direction rotating pulley block, one end of the rocker arm assembly can rotate around the fixed steering joint, the other end of the rocker arm assembly can rotate around the Z-direction rotating pulley block, a sliding rail with a short sliding rail length and no bending track can be used on a main reducing platform, and because the opening which is used for installing the upper pulley assembly on the upper sliding rail faces downwards, the upper pulley assembly can move up and down in a small amplitude in the upper sliding rail, so that the design angles of the sliding rail on the main reducing platform are different, and finally, the motion clamping phenomenon of the sliding door is difficult to occur between the pulley assemblies.
Drawings
FIG. 1 is a schematic view of the overall structure of a sliding door motion device and sliding door of a helicopter of the present invention;
FIG. 2 is a schematic structural view of a front rocker arm stop device of the middle slide rail;
FIG. 3 is a schematic structural view of an upper pulley assembly;
FIG. 4 is a schematic view of the construction of the transverse wheel;
FIG. 5 is a schematic view of the lower pulley assembly;
FIG. 6 is a schematic view of the transverse and vertical wheels and rotatable truck mounting arrangement;
FIG. 7 is a schematic diagram of a middle pulley assembly;
FIG. 8 is a schematic view of a rocker arm structure in a middle pulley assembly;
fig. 9 is a schematic diagram of rocker arm binaural joint dimensions in a medium pulley assembly;
fig. 10 is a schematic view of a fixed knuckle in a middle pulley assembly.
The device comprises a 1-sliding cabin door, a 2-upper sliding rail, a 3-upper pulley assembly, a 4-lower sliding rail, a 5-lower pulley assembly, a 6-middle sliding rail, a 7-middle pulley assembly, an 8-limit support, a 9-first bolt, a 10-transverse wheel, a 11-second bolt, a 12-laterally adjustable support, a 13-cabin door fixed elbow support, a 14-rolling bearing, a 15-embedded bushing, a 16-rotatable bogie, a 17-transverse wheel, a 18-vertical wheel, a 19-toothed double-lug joint, a 20-mounting shaft, a 21-pin, a 22-fixed steering joint, a 23-rocker arm, a 24-first pressure spring joint, a 25-second pressure spring joint, a 26-pressure spring, a 27-first double-lug joint, a 28-second double-lug joint, a 29-third double-lug joint, a 30-limit boss, a 31-upper lug piece, a 32-middle lug piece and a 33-lower lug piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any inventive effort are intended to fall within the scope of the present invention.
Features and exemplary embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention. The present invention is in no way limited to any particular arrangement and method set forth below, but rather covers any adaptations, alternatives, and modifications of structure, method, and device without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present invention. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other, and the embodiments may be referred to and cited with each other.
The invention will be described in detail below with reference to the drawings and the detailed description.
The sliding cabin door movement device of the helicopter comprises three sliding rails and corresponding pulley assemblies, wherein the three sliding rails are arranged on a helicopter body structure and connected with three different movement tracks of a sliding cabin door, the three sliding rail assemblies are respectively arranged on a cabin framework, a cabin floor and a main reduction platform, the three sliding rails are respectively arranged up and down, the upper sliding rail and the lower sliding rail are basically the same in course position, the front ends of the upper sliding rail and the lower sliding rail are bent into a cabin, the cabin door moves into the cabin in the sliding process of the cabin door, the sliding distance of the middle sliding rail is smaller than that of the upper sliding rail and the lower sliding rail due to the limitation of the space size on the main reduction platform, and the front ends of the sliding rails cannot be bent into the cabin. The three pulley assemblies comprise an upper pulley assembly, a lower pulley assembly and a middle pulley assembly, wherein the upper pulley assembly is only provided with a fixed transverse pulley, the lower pulley assembly is provided with a Z-direction rotating pulley block and 1 toothed double-lug joint, the pulley block capable of rotating around the Z direction comprises 1 rotatable bogie, 2 transverse pulleys and 1 vertical pulley, and the middle pulley assembly comprises 1Z-direction rotating pulley block, a rocker arm assembly and a fixed steering joint. When the sliding cabin door is opened, the sliding cabin door is enabled to slide backwards in a coordinated manner through the bending guide of the upper sliding rail and the lower sliding rail and the rotation of the rocker arm of the middle pulley assembly. The invention solves the problems of inconsistent movement and movement clamping stagnation phenomenon between pulley assemblies due to the fact that the sliding rail with short length and no bending track is used on the main reduction platform, the design angles of the sliding rail on the ground of the cabin and the sliding rail on the main reduction platform are different, and the results show that the smooth sliding and the rapid opening functions of the sliding cabin door on the cabin can be realized through the installation test on the cabin door machine.
An embodiment of the present invention provides a helicopter sliding cabin door movement device, which includes an upper sliding rail 2 disposed on a cabin skeleton, a lower sliding rail 4 disposed on a cabin floor, and a middle sliding rail 6 disposed on a main damping platform, please refer to fig. 1;
Further, the front end of the upper sliding rail is bent into the cabin and then is provided with a straight section, so that the upper part of the sliding cabin door 1 slides 110mm towards the cabin and is fixed on the straight section, the lateral movement of the cabin door is limited, an opening on the upper sliding rail for installing the upper pulley assembly 3 faces downwards, and the upper pulley assembly 3 can move up and down in the upper sliding rail in a small amplitude. The front end of the lower sliding rail is bent into the cabin, so that the lower part of the sliding cabin door 1 slides for 110mm obliquely towards the cabin interior direction, and the front end of the sliding rail is free of a straight section. The opening on the middle slide rail 6 for installing the middle pulley assembly is outwards, the length of the opening is 100mm shorter than that of the upper slide rail 2 and the lower slide rail 4, and the front end of the middle slide rail 6 is limited by the space of the machine body and cannot bend inwards;
further, the upper end of the front part of the middle sliding rail 6 is provided with a rocker arm limiting device with adjustable length, the rocker arm limiting device is used for limiting the rocker arm assembly to rotate inwards when the sliding cabin door is closed, the limiting device comprises a limiting support 8 and a first bolt 9, the front end of the limiting support 8 is provided with a second boss with the thickness of 6mm, and a through hole with an M6 internal thread is formed in the middle of the second boss. The total length of the cylindrical shaft of the first bolt 9 is 30mm, the length of the thread with M6 is 25mm, the head of the bolt is a third boss with the diameter phi of 14mm and the thickness of 5mm, the two ends of the boss are provided with flat surfaces for rotating when the bolt is installed, and the bolt can be adjusted to the front and rear positions on the limiting support through rotation, see fig. 2.
The upper slide rail 2 is connected with the sliding cabin door 1 through the upper pulley assembly 3, the lower slide rail 4 is connected with the sliding cabin door 1 through the lower pulley assembly 5, and the middle slide rail 6 is connected with the sliding cabin door 1 through the middle pulley assembly 7, see fig. 1;
Further, the upper pulley assembly comprises a transverse wheel 10, a second bolt 11, a laterally adjustable bracket 12 and a hatch fixing elbow bracket 13, see fig. 3. The clearance between the outer diameter of the transverse wheel 10 and the sliding rail is 0.5mm, the transverse wheel 10 comprises a rolling bearing 14 and an embedded bushing 15, the embedded bushing 15 is made of reinforced nylon, and a groove with the width of 2mm and the depth of 1mm is formed in the periphery of the rolling bearing 14 for injection molding of the reinforced nylon, and please refer to fig. 4. The tolerance of the bolt polished rod area is f9, the bolt polished rod area is in transition fit with the rolling bearing, a tooth-shaped array is arranged on the mounting surface of the lower part of the bracket capable of being laterally adjusted, the bolt polished rod area is matched with the tooth-shaped array on the cabin door fixed elbow bracket to adjust the lateral position of the upper pulley assembly, and each tooth can be adjusted by 1mm.
Further, the lower pulley assembly comprises a Z-direction rotating pulley block and 1 toothed binaural joint 19. The Z-direction rotating pulley block comprises 1 rotatable bogie 16, 2 transverse wheels 17 and 1 vertical wheel 18, wherein the clearance between the transverse wheels 17 and the vertical wheels 18 and the lower sliding rail is 0.5mm, the transverse wheels 17 and the vertical wheels 18 are identical to the transverse wheels of the upper pulley assembly in structure, the 2 transverse wheels are symmetrically arranged at two ends of the vertical wheels, the axial distance between the 2 transverse wheels is 50mm, a first boss is arranged at the joint of the rotatable bogie 16 and the toothed double-lug joint 19, the boss is 10mm in height, the clearance between the double-lug joints on the toothed double-lug joint 19 is larger than the height of the first boss, and the clearance between the double-lug joints is 11mm, see fig. 5.
Further, the transverse wheel 17 and the vertical wheel 18 are inserted into the bogie through the shaft, the diameter of the transverse wheel mounting shaft 20 is Φ6mm, the diameter of the vertical wheel mounting shaft 20 is Φ8mm, the fit tolerance of the shaft and the bogie mounting hole is H8/f9, the bogie and the shaft are fixed through the pin 21, the fit tolerance of the bogie and the pin is H10/f9, and the diameter of the pin is Φ2mm, see fig. 6.
The middle pulley assembly comprises 1Z-direction rotating pulley block, a rocker arm assembly and a fixed steering joint 22, wherein the Z-direction rotating pulley block and the Z-direction rotating pulley block of the lower pulley assembly are identical in structure, one end of the rocker arm assembly is hinged with the fixed steering joint, the other end of the rocker arm assembly is hinged with the Z-direction rotating pulley block, one end of the rocker arm assembly can rotate around the fixed steering joint 22, and the other end of the rocker arm assembly can rotate around the Z-direction rotating pulley block, and the middle pulley assembly is shown in fig. 7.
Further, the rocker arm assembly comprises a rocker arm 23, a first pressure spring connector 24, a second pressure spring connector 25 and a pressure spring 26. The compression spring 26 is sleeved on the outer side of the cylindrical shaft of the first compression spring connector 24, and the second compression spring connector 25 is inserted into the cylindrical hole of the first compression spring connector 24, see fig. 7.
Further, a first double-lug joint 27 with a gap of 11mm is arranged at the front end of the rocker arm and is used for connecting a pulley block rotating in the Z direction, the thickness of a lug piece is 4mm, the center of an upper hole of the first double-lug joint 27 is 8mm away from the rear end of the rocker arm and 10mm away from the side end of the rocker arm, a limit boss 30 parallel to the two-lug joint end is simultaneously arranged at the front end of the rocker arm, the local height of the limit boss 30 is higher than that of the double-lug joint 4mm, the width of the limit boss is 15mm, a second double-lug joint 28 connected with a first pressure spring joint is arranged at a position 56mm away from the rear end of the rocker arm, the thickness of the lug piece is 2mm, the center of an upper hole of the second double-lug joint 28 is 20mm away from the side end of the rocker arm, a third double-lug joint 29 connected with a machine body joint is arranged at a position 130mm away from the rear end of the rocker arm, the thickness of the lug piece is 4mm, the gap is 26mm, and the center of the upper hole of the third double-lug joint 29 is 37mm away from the side end of the rocker arm, see fig. 8 and 9.
Further, the first pressure spring connects, and one end is the ears and connects, and the other end is the cylinder axle, and ears connect the clearance for 8mm, and lug thickness is 2mm, connects hole center to cylinder axle tip 48mm on the ears, and hole center and cylinder axle center are at same symmetry plane, and cylinder axle length is 40mm, sets up length to 20mm from cylinder axle tip, and the diameter is the cylinder hole that phi 6H8 is used for second pressure spring to connect concertina movement.
Further, the second pressure spring connects, and one end is the ears and connects, and one end is the cylinder axle, and ears connect the clearance and be 6mm, and lug thickness is 2mm, connects hole center to cylinder axle tip 29.5mm on the ears and connects, and hole center and cylinder axle center are at same symmetry plane, and cylinder axle length is 20mm, and cylinder axle diameter is phi 6h7.
Further, the compressed spring material is selected from a steel wire G1 group, the diameter of the steel wire is 2.6mm, the outer diameter of the spring is 14mm, the effective circle number is 12.5, and the free height is 54mm. When the second pressure spring connector moves to the limit position in a telescopic mode, the distance between the pressure spring pressing surface on the first pressure spring connector and the pressure spring pressing surface on the second pressure spring connector is 41mm, and the pressure spring is compressed by 13mm.
According to the rigidity of the pressure springWherein G is the elastic modulus of the steel wire, 70000MPa, d is the diameter of the steel wire, and 2.6mm. N is a limited number of turns, 12.5 turns. D is the middle diameter of the compression spring, the outer diameter is reduced by the radius of the steel wire, and the diameter is 14-1.3=12.7 mm, and k=17.6N/mm is calculated according to a formula.
According to the calculation formula f=kx of the force of the compression spring, k is the rigidity of the compression spring, x is the compression distance, when the first compression spring connector and the second compression spring connector are compressed to the limit position, f=17.6n/mm×13mm= 228.8N, the left and right hand pushing force 187N to 231N specified in GJB2873 is between, the pressure value generated by the compression spring is reasonably designed, the compression spring can generate corresponding damping when the sliding cabin door is closed, and the resistance generated by the compression spring can be overcome by hand pushing.
Further, the fixed steering joint includes an upper tab 31, a middle tab 32, and a lower tab 33. The three lugs are parallel to the middle slide rail mounting surface, wherein the gap between the upper lug and the lower lug is 34mm, the tolerance is-0.15 to 0, the thickness of the upper lug and the lower lug is 4mm, the thickness of the middle lug is 6mm, the tolerance is-0.15 to 0, the lower surface of the middle lug is 20mm away from the upper surface of the lower lug, through holes of phi 8H8 are drilled on the three lugs at the same time and are used for connecting a third double-lug joint of a rocker arm through a pin shaft, the diameter of a connecting pin shaft is 6mm, the middle lug is independently provided with a through hole of phi 5H8 and is used for connecting a second pressure spring joint, and a connecting line of the round hole center of the middle lug phi 5 and the upper hole center of the rocker arm second double-lug joint is arranged outside the center of the first double-lug joint hole of the rocker arm, and please refer to fig. 10.
The foregoing has outlined rather broadly the more detailed description of the invention in order that the detailed description thereof that follows may be better understood, and in order that the present invention may be better understood. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. In addition, the invention is not fully described in the conventional technology.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510690250.0A CN120191504B (en) | 2025-05-27 | 2025-05-27 | Helicopter sliding door movement device and sliding door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510690250.0A CN120191504B (en) | 2025-05-27 | 2025-05-27 | Helicopter sliding door movement device and sliding door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN120191504A true CN120191504A (en) | 2025-06-24 |
| CN120191504B CN120191504B (en) | 2025-09-09 |
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| CN202510690250.0A Active CN120191504B (en) | 2025-05-27 | 2025-05-27 | Helicopter sliding door movement device and sliding door |
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Citations (6)
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|---|---|---|---|---|
| JP2010036654A (en) * | 2008-08-01 | 2010-02-18 | Honda Motor Co Ltd | Aircraft sliding door equipment |
| CN104379861A (en) * | 2012-03-19 | 2015-02-25 | 丝吉利娅-奥彼两合责任公司 | Fitting for wing of windows or doors set parallel and displaced horizontally in said parallel set position |
| CN204941192U (en) * | 2015-08-22 | 2016-01-06 | 河北奥润顺达窗业有限公司 | A kind of glidepath assembly being applicable to pressing sliding door |
| CN208534274U (en) * | 2017-12-03 | 2019-02-22 | 中国直升机设计研究所 | A kind of sliding rail and pulley for helicopter sliding hatch door |
| CN114030588A (en) * | 2021-09-18 | 2022-02-11 | 中国直升机设计研究所 | Automatic folding sliding door structure and folding method |
| CN119527530A (en) * | 2024-10-15 | 2025-02-28 | 中国直升机设计研究所 | A sliding door structure with emergency exit and emergency release method thereof |
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2025
- 2025-05-27 CN CN202510690250.0A patent/CN120191504B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010036654A (en) * | 2008-08-01 | 2010-02-18 | Honda Motor Co Ltd | Aircraft sliding door equipment |
| CN104379861A (en) * | 2012-03-19 | 2015-02-25 | 丝吉利娅-奥彼两合责任公司 | Fitting for wing of windows or doors set parallel and displaced horizontally in said parallel set position |
| CN204941192U (en) * | 2015-08-22 | 2016-01-06 | 河北奥润顺达窗业有限公司 | A kind of glidepath assembly being applicable to pressing sliding door |
| CN208534274U (en) * | 2017-12-03 | 2019-02-22 | 中国直升机设计研究所 | A kind of sliding rail and pulley for helicopter sliding hatch door |
| CN114030588A (en) * | 2021-09-18 | 2022-02-11 | 中国直升机设计研究所 | Automatic folding sliding door structure and folding method |
| CN119527530A (en) * | 2024-10-15 | 2025-02-28 | 中国直升机设计研究所 | A sliding door structure with emergency exit and emergency release method thereof |
Non-Patent Citations (1)
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| 谷长河;胡泊;李成行;: "直升机滑动舱门动力学仿真分析及优化改进", 航空计算技术, no. 04, 25 July 2018 (2018-07-25) * |
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|---|---|
| CN120191504B (en) | 2025-09-09 |
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