One-driving-two type airborne suspension device lifting system

Abstract

The invention relates to a one-driving-two type airborne suspension device lifting system which comprises a motor driving unit, a telescopic universal joint, a left suspension point clutch mechanism, a right suspension point clutch mechanism, a left lifting mechanism and a right lifting mechanism. A clutch is arranged in the right hanging point clutch mechanism, connection and disconnection of power transmitted to a right hanging point are controlled through attraction and separation of the clutch, a guide actuator assembly, a planetary gear train assembly and a winding drum are arranged in the right lifting mechanism, and the guide actuator assembly and the winding drum are both transversely arranged in the right hanging point clutch mechanism. And the output end of the right hanging point clutch mechanism extends into the actuator assembly and is in meshing transmission connection with a planetary gear train assembly arranged in the right lifting mechanism under the transmission of the actuator assembly, and in a word, the lifting mechanism has the advantages of being simple in structure, convenient to operate, high in automation degree and good in lifting effect.

Description

Technical Field

[0001] The invention belongs to the technical field of airborne suspension systems, and in particular relates to a one-to-two type airborne suspension device lifting system. Background Art

[0002] In the process of developing a new generation of aircraft, in order to ensure the stealth and maneuverability of the aircraft, internal bomb bays are mostly used. Missiles are still loaded by "hand-held and shoulder-carrying" or ground loading equipment. In order to reduce the use of external equipment, shorten loading time, ensure the safety of ground crew members, and adapt to special combat environments such as landing aircraft at civil airports, it is necessary to study the airborne suspension device lifting system.

[0003] In the face of new application scenarios, that is, independently lifting the suspended objects at the left or right hanging point vertically in the aircraft heading, it is necessary to study a new layout of the airborne suspension device lifting system based on the principle of minimizing space, weight and cost. During loading, the missile rack is released from the left or right hanging point through the system, and the rack is lifted into the bomb bay after the loading is completed on the ground. The existing suspension device lifting system has a complex structure, is inconvenient to operate, and cannot meet the independent lifting requirements. Therefore, a one-to-two type airborne suspension device lifting system is urgently needed to solve the above problems. Summary of the invention

[0004] In view of this, the present invention proposes a one-to-two type airborne suspension device lifting system, which is applied to the technical field of airborne suspension systems to solve the existing technical problems of being unable to lift automatically, prone to failure, complex structure and low product reliability.

[0005] In order to achieve the above technical objectives, the specific technical solutions adopted by the present invention are:

[0006] A one-to-two type airborne suspension device lifting system comprises a motor drive unit, a telescopic universal joint, a left hanging point clutch mechanism, a right hanging point clutch mechanism, a left lifting mechanism and a right lifting mechanism, wherein the output end of the motor drive unit is meshed and transmission-connected with the input end of the right hanging point clutch mechanism, a clutch is arranged inside the right hanging point clutch mechanism, and the on-off transmission of power to the right hanging point is controlled by the engagement and separation of the clutch, an actuator assembly, a planetary gear train assembly and a drum are arranged inside the right lifting mechanism, the actuator assembly and the drum are both transversely arranged inside the right hanging point clutch mechanism, the output end of the right hanging point clutch mechanism extends into the actuator assembly, thereby driving the actuator assembly to rotate, and meshed and transmission-connected with the planetary gear train assembly arranged inside the right lifting mechanism under the transmission of the actuator assembly, the actuator assembly and the planetary gear train assembly are both arranged inside the drum, the planetary gear train assembly comprises an input sun gear and an output planetary gear, the input sun gear rotates under the drive of the actuator assembly, and the output planetary gear drives the rotating drum to rotate under the drive of the active sun gear.

[0007] Furthermore, a steel cable assembly, a clamping device and a guide device are provided inside the right lifting mechanism. The position sensor is connected to the output shaft of the actuator assembly. The clamping device and the guide device are arranged on one side of the drum. The steel cable assembly is squeezed to ensure that the steel cable assembly is tightly wound inside the spiral groove of the drum.

[0008] Furthermore, the first end cover assembly and the second end cover assembly are respectively arranged at the horizontal ends of the right lifting mechanism and are both fixed on the base plate assembly. The outer shafts on both sides of the first end cover assembly and the second end cover assembly are installed with outer deep groove ball bearings for supporting the rotation of the reel. The inner holes on both sides of the first end cover assembly and the second end cover assembly are installed with inner deep groove ball bearings for supporting the rotation of the guide assembly.

[0009] Furthermore, the output shaft in the actuator assembly is meshed and connected to the input sun gear of the planetary gear train, so that the actuator assembly and the output planetary gear are coupled to form a composite gear train. The two ends of the drum respectively penetrate into the interior of the first end cover assembly and the second end cover assembly, and rotate under the restriction of the first end cover assembly and the second end cover assembly. The internal gears at both ends of the drum are connected to the output planetary gears of the planetary gear train assembly, thereby transmitting the power and rotation speed of the motor drive unit to the drum.

[0010] Furthermore, the left hanging point clutch mechanism and the right hanging point clutch mechanism are respectively arranged at the two ends of the telescopic universal joint and are connected through the telescopic universal joint. The motor drive unit is arranged on the right lifting mechanism. The right lifting mechanism and the left lifting mechanism are symmetrically arranged about the telescopic universal joint. The transmission structure inside the left lifting mechanism is the same as the transmission structure inside the right lifting mechanism. The outer ends of the left lifting mechanism and the right lifting mechanism are respectively provided with a left hanging point suspension unit frame and a right hanging point suspension unit frame, so as to facilitate the left hanging point suspension unit frame and the right hanging point suspension unit frame to support the corresponding left lifting mechanism and right lifting mechanism respectively.

[0011] Furthermore, the motor drive unit includes a brushless permanent magnet synchronous motor, a first motor-end planetary gear train, a second motor-end planetary gear train, a third motor-end planetary gear train and a motor-end housing. The brushless permanent magnet synchronous motor serves as the power input of the unit and is fixed to the motor-end housing by bolts to provide power input for the motor drive unit. The first motor-end planetary gear train, the second motor-end planetary gear train and the third motor-end planetary gear train are all located inside the motor-end housing and share an internal gear as the motor sun gear.

[0012] Furthermore, the gear shaft of the motor sun gear is fixedly connected to the motor end housing through a flat key, and through the coordinated transmission of the three-stage planetary gear train, the unit structure is compact and can achieve high-power transmission with light weight.

[0013] Furthermore, the planetary gear train assembly is arranged inside the drum at one end close to the second end cover assembly, and the planetary gear train assembly is arranged between the outer ring of the actuator assembly and the inner ring of the drum. The above-mentioned planetary gear train assembly is fixed to the second end cover assembly by four pins.

[0014] Furthermore, a position sensor is provided at the end of the output shaft of the actuator assembly. The position sensor is located in the horizontal direction between the planetary gear train assembly and the second end cover assembly. A monitoring cavity corresponding to the distal position of the output shaft of the actuator assembly is provided on the second end cover assembly. The position sensor is provided inside the monitoring cavity. The position sensor is fixed on the second end cover assembly.

[0015] By adopting the above technical solution, the present invention can also bring the following beneficial effects:

[0016] 1. The present invention mentions a one-to-two type airborne suspension device lifting system, wherein the two lifting mechanisms are axially parallel to the aircraft span direction and are installed on the left and right hanging point suspension unit frames respectively, perpendicular to the aircraft heading direction. The left and right lifting mechanism position sensors can monitor the length of the steel cable extended or retracted in real time, thereby realizing accurate control of the position of the suspended object, and can also protect the steel cable and the lifting mechanism structure from being damaged due to the steel cable exceeding the stroke. The action of the two sets of lifting mechanisms on the left and right hanging points can be realized through a set of motor drive units, which reduces the redundant design of the gear transmission system, reduces the complexity of the motor drive control circuit, further reduces the overall weight of the product, and greatly improves the reliability of the product, so that the product has a good economic effect.

[0017] 2. The one-to-two type airborne suspension device lifting system mentioned in the present invention can realize the action of two sets of lifting mechanisms at the left and right hanging points through a set of motor drive units, thereby reducing the redundant design of the gear transmission system and the complexity of the motor drive control circuit, further reducing the overall weight of the product, and at the same time greatly improving the reliability of the product, so that the product has good economic effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only 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.

[0019] Figure 1 The present invention provides a structural schematic diagram of a one-to-two type airborne suspension device lifting system;

[0020] Figure 2 It is a structural schematic diagram of the right lifting mechanism in a specific implementation manner of the present invention;

[0021] Figure 3 It is a schematic diagram of the connection structure between the actuator assembly and the planetary gear train assembly in a specific embodiment of the present invention;

[0022] Figure 4 It is a structural schematic diagram of a motor drive unit in a specific implementation manner of the present invention;

[0023] Wherein: 1. Motor drive unit; 2. Telescopic universal joint; 3. Left hanging point clutch mechanism; 4. Right hanging point clutch mechanism; 5. Left lifting mechanism; 6. Right lifting mechanism; 7. Left hanging point suspension unit skeleton; 8. Right hanging point suspension unit skeleton; 101. Brushless permanent magnet synchronous motor; 102. First motor end planetary gear train; 103. Second motor end planetary gear train; 104. Third motor end planetary gear train; 105. Motor end housing; 601. First end cover assembly; 602. Clamping device; 603. Reel; 604. Second end cover assembly; 605. Bottom plate assembly; 606. Cable assembly; 607. Guide device; 608. Actuator assembly; 609. Planetary gear train assembly; 610. Position sensor. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0026] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present invention, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0028] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0029] In one embodiment of the present invention, Figures 1 to 4 As shown, a one-to-two type airborne suspension device lifting system comprises: a motor drive unit 1, a telescopic universal joint 2, a left hanging point clutch mechanism 3, a right hanging point clutch mechanism 4, a left lifting mechanism 5, and a right lifting mechanism 6. The telescopic universal joint 2 is used to connect the output shafts of the left hanging point clutch mechanism 3 and the right hanging point clutch mechanism 4, and the one-to-two arrangement is realized through the clutch. The motor drive unit 1 provides power for the entire device and is fixed to the right hanging point clutch mechanism 4 by bolts. The spur gear at the output end of the former meshes with the gear shaft at the input end of the latter to transmit power. The engagement and separation of the clutch inside the right hanging point clutch mechanism 4 can control the on and off of the power transmission to the right hanging point, which is controlled by the screw. The bolt is fixed on the right lifting mechanism 6, and the former output end gear shaft is meshed with the input sun gear in the latter planetary gear train assembly 609 to transmit power. The engagement and separation of the clutch inside the left hanging point clutch mechanism 3 can control the on and off of power transmission to the left hanging point. It is fixed on the left lifting mechanism 5 by bolts, and the former output end gear shaft is meshed with the output planetary gear of the planetary gear train assembly 609 to transmit power. The left lifting mechanism 5 and the right lifting mechanism 6 are respectively installed on the corresponding left hanging point suspension unit frame 7 and the right hanging point suspension unit frame 8. The rotation of the drum 603 can be realized through the internal composite gear train meshing transmission, and the steel cable is further wound in or out to realize the lifting / lowering of the suspended object.

[0030] The motor drive unit 1 includes a brushless permanent magnet synchronous motor 101, a first motor-end planetary gear train 102, a second motor-end planetary gear train 103, a third motor-end planetary gear train 104 and a motor-end housing 105. The brushless permanent magnet synchronous motor serves as the power input of the unit and is fixed to the motor-end housing 105 by bolts; the first motor-end planetary gear train 102, the second motor-end planetary gear train 103, and the third motor-end planetary gear train 104 are all located inside the motor-end housing 105 and share an internal gear as a sun gear, which is axially fixedly connected to the motor-end housing 105 by a flat key. Through the coordinated transmission of the three-stage planetary gear train, the unit structure is compact and can achieve high-power transmission with light weight.

[0031] The right lifting mechanism 6 includes a first end cover assembly 601, a clamping device 602, a reel 603, a second end cover assembly 604, a bottom plate assembly 605, a steel cable assembly 606, a guide device 607, a guide assembly 608, a planetary gear train assembly 609 and a position sensor 610. The first end cover assembly 601 and the second end cover assembly 604 are fixed to the bottom plate assembly 605 by screws. Deep groove ball bearings are installed on the outer shafts on both sides of the first end cover assembly 601 and the second end cover assembly 604 to support the rotation of the reel 603. Deep groove ball bearings are installed in the inner holes on both sides of the end cover assembly 604 to support the rotation of the actuator. The planetary gear assembly 609 is installed on the second end cover assembly 604 through four pins. The output shaft of the actuator assembly 608 is meshed and connected with the input sun gear of the planetary gear assembly 609. Thus, the actuator assembly 608 and the planetary gear assembly 609 are coupled to form a composite gear train, and at the same time mesh with the internal gears at both ends of the reel 603, thereby transmitting the power and speed of the motor drive unit 1 to the reel 603; the output gear shaft of the right hanging point clutch mechanism 4 is connected to the actuator assembly 6 08's input sun gear transmission connection provides power input for the compound gear train, the input shaft of the position sensor 610 is connected to the output shaft of the actuator assembly 608, and the position sensor 610 is fixed on the second end cover assembly 604. The internal transmission structure of the position sensor 610 adopts the existing product, which will not cause the input shaft of the position sensor 610 to get stuck, and will not be introduced in detail here; in addition, during the operation of the right lifting mechanism 6, the length of the extended or retracted steel cable can be fed back to the upper computer in real time, and the clamping device 602 cooperates with the guide device 607 to ensure that the steel cable assembly 606 is tightly wound in the spiral groove of the drum 603 without any disorder. The transmission structures of the left lifting mechanism 5 and the right lifting mechanism 6 are exactly the same, and the action of the two sets of lifting mechanisms at the left and right hanging points can be realized through a set of motor drive units 1, which reduces the redundant design of the gear transmission system, reduces the complexity of the motor drive control circuit, further reduces the overall weight of the product, and greatly improves the reliability of the product, so that the product has a good economic effect. In short, the present invention has the advantages of simple structure, convenient operation, high degree of automation and good lifting effect.

[0032] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A one-to-two type airborne suspension device lifting system, characterized in that: The invention comprises a motor drive unit (1), a telescopic universal joint (2), a left hanging point clutch mechanism (3), a right hanging point clutch mechanism (4), a left lifting mechanism (5) and a right lifting mechanism (6); the output end of the motor drive unit (1) is meshed and transmission-connected with the input end of the right hanging point clutch mechanism (4); a clutch is arranged inside the right hanging point clutch mechanism (4); the on-off transmission of power to the right hanging point is controlled by the engagement and separation of the clutch; the right lifting mechanism (6) is arranged inside an actuator assembly (608), a planetary gear train assembly (609) and a reel (603); the actuator assembly (608) and the reel (603) are both arranged transversely on the right hanging point clutch. The output end of the right hanging point clutch mechanism (4) extends into the guide assembly (608), thereby driving the guide assembly (608) to rotate, and is meshed and connected with a planetary gear train assembly (609) arranged inside the right lifting mechanism (6) under the transmission of the guide assembly (608). The guide assembly (608) and the planetary gear train assembly (609) are both arranged inside the reel (603). The planetary gear train assembly (609) includes an input sun gear and an output planetary gear. The input sun gear rotates under the drive of the guide assembly (608), and the output planetary gear drives the rotating drum to rotate under the drive of the active sun gear.

2. A one-to-two type airborne suspension device lifting system as claimed in claim 1, characterized in that: The right lifting mechanism (6) is internally provided with a steel cable assembly (606), a clamping device (602) and a guiding device (607); the position sensor (610) is connected to the output shaft of the actuator assembly (608); the clamping device (602) and the guiding device (607) are arranged on one side of the drum (603); and the steel cable assembly (606) is squeezed to ensure that the steel cable assembly (606) is tightly wound inside the spiral groove of the drum (603).

3. A one-to-two type airborne suspension device lifting system as claimed in claim 2, characterized in that: The right lifting mechanism (6) is internally provided with a first end cover assembly (601), a second end cover assembly (604) and a base plate assembly (605); the first end cover assembly (601) and the second end cover assembly (604) are respectively arranged at the horizontal ends of the right lifting mechanism (6) and are both fixed on the base plate assembly (605); the outer shafts on both sides of the first end cover assembly (601) and the second end cover assembly (604) are both installed with outer deep groove ball bearings for supporting the rotation of the reel (603); the inner holes on both sides of the first end cover assembly (601) and the second end cover assembly (604) are both installed with inner deep groove ball bearings for supporting the rotation of the guide assembly.

4. A one-to-two type airborne suspension device lifting system as claimed in claim 3, characterized in that: The output shaft in the actuator assembly (608) is meshed and connected to the input sun gear of the planetary gear train, so that the actuator assembly (608) and the output planetary gear are coupled to form a composite gear train. The two ends of the drum (603) extend into the interior of the first end cover assembly (601) and the second end cover assembly (604), respectively, and rotate under the restriction of the first end cover assembly (601) and the second end cover assembly (604). The internal gears at the two ends of the drum (603) are connected to the output planetary gear of the planetary gear train assembly (609), thereby transmitting the power and rotation speed of the motor drive unit (1) to the drum (603).

5. A one-to-two type airborne suspension device lifting system as claimed in claim 4, characterized in that: The left hanging point clutch mechanism (3) and the right hanging point clutch mechanism (4) are respectively arranged at the two ends of the telescopic universal joint (2) and are connected by transmission through the telescopic universal joint (2); the motor drive unit (1) is arranged on the right lifting mechanism (6); the right lifting mechanism (6) and the left lifting mechanism (5) are symmetrically arranged with respect to the telescopic universal joint (2); the transmission structure inside the left lifting mechanism (5) is the same as the transmission structure inside the right lifting mechanism (6); the outer ends of the left lifting mechanism (5) and the right lifting mechanism (6) are respectively provided with a left hanging point suspension unit frame (7) and a right hanging point suspension unit frame (8), so that the left hanging point suspension unit frame (7) and the right hanging point suspension unit frame (8) can support the corresponding left lifting mechanism (5) and right lifting mechanism (6) respectively.

6. A one-to-two type airborne suspension device lifting system as claimed in claim 5, characterized in that: The motor drive unit (1) comprises a brushless permanent magnet synchronous motor (101), a first motor end planetary gear train (102), a second motor end planetary gear train (103), a third motor end planetary gear train (104) and a motor end housing (105); the brushless permanent magnet synchronous motor (101) serves as the power input of the unit and is fixed to the motor end housing (105) by bolts to provide power input for the motor drive unit (1).

7. A one-to-two type airborne suspension device lifting system as claimed in claim 6, characterized in that: The first motor-end planetary gear train (102), the second motor-end planetary gear train (103), and the third motor-end planetary gear train (104) are all located inside the motor-end housing (105), and share an internal gear as the motor sun gear. The gear shaft of the motor sun gear is fixedly connected to the motor-end housing (105) via a flat key. Through the coordinated transmission of the three-stage planetary gear train, the unit structure is compact and high-power transmission with low weight can be achieved.

8. A one-to-two type airborne suspension device lifting system as claimed in claim 7, characterized in that: The planetary gear train assembly (609) is arranged inside the reel (603) at one end close to the second end cover assembly (604), the planetary gear train assembly (609) is arranged between the outer ring of the actuator assembly (608) and the inner ring of the reel (603), and the planetary gear train assembly (609) is fixed to the second end cover assembly (604) by four pins.

9. A one-to-two type airborne suspension device lifting system as claimed in claim 8, characterized in that: A position sensor (610) is provided at the end of the output shaft of the actuator assembly (608). The position sensor (610) is located between the planetary gear train assembly (609) and the second end cover assembly (604) in the horizontal direction. A monitoring cavity corresponding to the distal end position of the output shaft of the actuator assembly (608) is provided on the second end cover assembly (604). The position sensor (610) is arranged inside the monitoring cavity. The position sensor (610) is fixed on the second end cover assembly (604).

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