Vibration platform

Abstract

The invention provides a vibration platform which comprises a platform body, a bottom plate, a base, a motion assembly and an elastic assembly, the platform body is used for installing a helicopter simulator, the bottom plate and the platform body are connected and arranged at intervals in the first direction, the base is arranged on the side, away from the platform body, of the bottom plate, and the base and the bottom plate are arranged at intervals; the bottom plate is arranged on the base, the platform is arranged on the bottom plate, the moving assembly is arranged between the bottom plate and the platform, the moving assembly can drive the platform to move relative to the base, the elastic assembly is arranged between the bottom plate and the platform, and the elastic assembly is used for supporting the platform. The vibration platform has the advantages of being compact in structure, high in bearing capacity, high in response speed and the like.

Description

Technical Field

[0001] The invention relates to the technical field of simulated vibration platforms, and in particular to a vibration platform. Background Art

[0002] The helicopter simulator vibration platform is a precision training device specially designed to simulate the vibration environment of a helicopter in various flight conditions. The vibration platform can accurately reproduce the vibrations felt by pilots in actual flight, including vibrations caused by the rotor and tail rotor, vibrations when the engine is running, flutter when the blades stall, and vibration responses when performing weapon releases or encountering specific faults. In the related art, when the load carried by the platform increases, a greater driving force is required to maintain its normal operation. In order to solve this problem, the usual practice is to increase the structural strength of the drive assembly to increase the driving force of the drive assembly. However, a significant disadvantage of this method is that it will cause the volume and weight of the entire vibration platform to increase, thereby affecting its response speed. Summary of the invention

[0003] The present invention provides a vibration platform, which is used to solve the defect of small bearing capacity of the vibration platform in the prior art, and realizes that the vibration platform can bear a large load while meeting the requirements of compact structure.

[0004] The present invention provides a vibration platform, comprising: A platform, wherein the platform is used to install a helicopter simulator; A bottom plate, the bottom plate is connected to the platform and arranged at intervals in a first direction; A base, the base is arranged on a side of the bottom plate away from the platform and spaced apart from the bottom plate; A motion component, the motion component is arranged between the bottom plate and the platform, and the motion component can drive the platform to move relative to the base; An elastic component is arranged between the base plate and the platform, and is used to support the platform.

[0005] According to an embodiment provided by the present invention, the motion assembly includes a vibration component, and the vibration component can drive the platform to move relative to the base plate, and the vibration component includes: A first driving member, the first driving member is fixedly connected to the bottom plate, and the first driving member comprises a first output shaft; A first connecting rod unit, one end of the first connecting rod unit is connected to the first output shaft, and the other end of the first connecting rod unit is rotatably connected to the platform.

[0006] According to an embodiment provided by the present invention, the first connecting rod unit includes: a first connecting rod, one end of which is non-rotatably connected to the first output shaft; a second connecting rod, one end of which is rotatably connected to the other end of the first connecting rod; A third connecting rod, wherein one end of the third connecting rod is provided with a first connecting portion and a second connecting portion, the first connecting portion is arranged adjacent to the bottom plate relative to the second connecting portion, the second connecting portion is rotatably connected to the other end of the second connecting rod, and the other end of the third connecting rod is rotatably connected to the platform; A fourth connecting rod, one end of which is rotatably connected to the first output shaft, and the other end of which is rotatably connected to the first connecting portion.

[0007] According to an embodiment provided by the present invention, there are two first output shafts, the two first output shafts are coaxially arranged, the two first connecting rod units are respectively connected to the two first output shafts, the other ends of the two third connecting rods are connected through a fifth connecting rod, the fifth connecting rod is provided with a third connecting portion, and the third connecting portion is rotatably connected to the platform.

[0008] According to an embodiment provided by the present invention, there are a plurality of vibration components, and the plurality of vibration components are arranged at intervals along the circumference of the base plate.

[0009] According to an embodiment provided by the present invention, the motion assembly includes a rotating component, and the rotating component can drive the bottom plate and the platform to rotate relative to the base around the first direction, and the rotating component includes: A second driving member, the second driving member is fixedly connected to the base plate, and the second driving member comprises a second output shaft; A second connecting rod unit, one end of the second connecting rod unit is connected to the second output shaft in a non-rotatable manner, and the other end of the second connecting rod unit is connected to the base in a rotatable manner.

[0010] According to an embodiment provided by the present invention, the second connecting rod unit includes: a sixth connecting rod, one end of which is non-rotatably connected to the second output shaft; A seventh connecting rod, one end of which is rotatably connected to the other end of the sixth connecting rod, and the other end of which is rotatably connected to the base.

[0011] According to an embodiment provided by the present invention, the elastic component comprises: A support, the support being rotatably connected to the base plate; An elastic member, one end of which is connected to the support; A support rod, one end of which is connected to the elastic member, and the other end of which is rotatably connected to the platform.

[0012] According to an embodiment provided by the present invention, a connecting shaft extending along the first direction is provided on the base, the bottom plate is rotatably connected to the connecting shaft, and the rotating component can drive the bottom plate to rotate around the connecting shaft.

[0013] According to an embodiment provided by the present invention, a limiting component is provided on the base, and the limiting component includes: A bracket, wherein the bracket is fixedly connected to the base, and a first gap is provided between the bracket and a side surface of the bottom plate; A roller is rotatably arranged on the bracket, and an outer peripheral surface of the roller can contact the surface of the bottom plate adjacent to the platform.

[0014] When the vibration platform implemented by the present invention needs to simulate the vibration environment of the helicopter under various flight conditions, the operator will apply a load to the platform. At this time, the elastic component on the platform will apply a reverse force from the bottom plate direction toward the platform, which plays a pre-support effect. As a result, most of the load borne by the platform is actually shared by the elastic component, and the motion component only needs to bear a smaller part of the load. Based on this principle, designers can design the bearing capacity of the elastic component according to the actual load condition of the platform so that it can remain stable and supportive under high load conditions. In this way, it is not necessary to increase the volume of the motion component to improve its structural strength and driving force, thereby avoiding the problem of volume increase caused by strengthening the motion component and making the structure of the vibration platform more compact. In addition, since the motion component only needs to bear a smaller part of the load, when the vibration platform moves, the motion component can respond quickly, thereby improving the response speed and vibration frequency of the platform, which is conducive to quickly simulating the flight state of the helicopter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or 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.

[0016] Figure 1 It is a structural schematic diagram of the vibration platform provided by the present invention.

[0017] Figure 2 It is a structural schematic diagram of the vibration platform provided by the present invention from another perspective.

[0018] Figure 3It is a structural schematic diagram of the vibration platform provided by the present invention without the platform.

[0019] Figure 4 It is a schematic diagram of the structure of the vibration component of the vibration platform provided by the present invention.

[0020] Figure 5 It is an exploded schematic diagram of the vibration component of the vibration platform provided by the present invention.

[0021] Figure 6 It is a structural schematic diagram of the bottom plate, base, rotating component and limiting assembly of the vibration platform provided by the present invention.

[0022] Figure 7 It is a schematic structural diagram of the rotating components of the vibration platform provided by the present invention.

[0023] Figure 8 It is a schematic structural diagram of the elastic component of the vibration platform provided by the present invention.

[0024] Fig. 9 It is a structural schematic diagram of the limiting component of the vibration platform provided by the present invention.

[0025] Fig.10 It is a schematic diagram comparing the travel of the vibration component of the vibration platform according to the embodiment of the present invention and the vibration component in the prior art.

[0026] Reference numerals: Platform 1; base plate 2; base 3; motion component 4; Vibrating component 5; first driving member 51; first output shaft 511; first connecting rod unit 52; first connecting rod 521; second connecting rod 522; third connecting rod 523; first connecting portion 5231; second connecting portion 5232; Fourth connecting rod 524; fifth connecting rod 53; third connecting portion 531; Rotating member 6; second driving member 61; second connecting rod unit 62; sixth connecting rod 621; seventh connecting rod 622; Elastic component 7; support 71; elastic member 72; support rod 73; protective shell 74; Rotating shaft 8; Limiting assembly 9; bracket 91; roller 92; connecting shaft 93. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0028] like Figures 1 to 9 As shown, an embodiment of the present invention discloses a vibration platform, comprising a platform 1, a base plate 2, a base 3, a motion component 4 and an elastic component 7. The platform 1 is used to install a helicopter simulator.

[0029] The bottom plate 2 is connected to the platform 1 and is arranged at intervals in the first direction.

[0030] The base 3 is disposed on a side of the bottom plate 2 facing away from the platform 1 and is spaced apart from the bottom plate 2 .

[0031] The motion component 4 is disposed between the bottom plate 2 and the platform 1, and the motion component 4 can drive the platform 1 to move relative to the base 3; The elastic component 7 is disposed between the base plate 2 and the platform 1 , and is used to support the platform 1 .

[0032] In order to make the technical solution of the present application easier to understand, the technical solution of the present application is further described below by taking the first direction being consistent with the up-down direction as an example, wherein the up-down direction is as follows: Figure 1 In addition, in order to better describe the motion of the vibration platform, Figure 1 A spatial rectangular coordinate system is established in which the X-axis, Y-axis and Z-axis are shown in the figure, wherein the Z-axis is consistent with the first direction or the up-down direction.

[0033] For example, Figure 1 As shown, the platform 1 , the bottom plate 2 and the base 3 are arranged in sequence from top to bottom, and the motion component 4 is disposed between the platform 1 and the bottom plate 2 .

[0034] One end of the motion component 4 is disposed on the bottom plate 2, and the other end of the motion component 4 is connected to the platform 1. The motion component 4 can drive the platform 1 to rotate or translate relative to the base 3. For example, the motion component 4 drives the platform 1 to rotate around the X axis, the Y axis, or the Z axis, or the motion component 4 drives the platform 1 to translate along the Z axis, etc.

[0035] The elastic component 7 has a force acting from the bottom plate 2 toward the platform 1 . In other words, the elastic component 7 provides a preset supporting force for the platform 1 .

[0036] When it is necessary to simulate the vibration environment of the helicopter under various flight conditions, the operator will apply a load to the platform 1. At this time, the elastic component 7 will apply a reverse force from the direction of the base plate 2 toward the platform 1, which has a pre-support effect. As a result, most of the load borne by the platform 1 is actually shared by the elastic component 7, and the motion component 4 only needs to bear a smaller part of the load. Based on this principle, designers can design the load-bearing capacity of the elastic component 7 according to the actual load conditions of the platform 1, so that it can remain stable and supportive under high load conditions. In this way, there is no need to increase the volume of the motion component 4 to increase its structural strength and driving force, thereby avoiding the problem of volume increase caused by strengthening the motion component 4 and making the structure of the vibration platform more compact.

[0037] In addition, since the motion component 4 only needs to bear a smaller part of the load, when the vibration platform moves, the motion component 4 can respond quickly, thereby improving the response speed and vibration frequency of the platform 1, which is conducive to quickly simulating the flight state of the helicopter.

[0038] Therefore, the vibration platform implemented in the present invention has the advantages of compact structure, strong bearing capacity and fast response speed.

[0039] In some embodiments, there are multiple vibration components 5 , and the multiple vibration components 5 are arranged at intervals along the circumference of the base plate 2 .

[0040] For example, Figure 3 As shown, three vibration components 5 are provided, and the three vibration components 5 are arranged at intervals along the circumference of the bottom plate 2. When the three vibration components 5 move in one direction along the Z axis at the same time, the platform 1 can be controlled to translate along the Z axis. When the movement direction of one or two vibration components 5 is opposite to that of the other vibration components 5, the platform 1 can be driven to rotate around the X axis or around the Y axis.

[0041] It is understandable that the number of the vibration components 5 is set according to actual needs. For example, the number of the vibration components 5 can be three, four, five or six.

[0042] In some embodiments, the motion assembly 4 includes a vibration component 5 , and the vibration component 5 can drive the platform 1 to move relative to the base plate 2 .

[0043] The vibration component 5 includes a first driving member 51 and a first connecting rod unit 52. The first driving member 51 is fixedly connected to the bottom plate 2 and includes a first output shaft 511. One end of the first connecting rod unit 52 is connected to the first output shaft 511, and the other end of the first connecting rod unit 52 is rotatably connected to the platform 1.

[0044] For example, Figure 4 and Figure 5As shown, the vibration component 5 can drive the platform 1 to rotate or move relative to the base plate 2. For example, the vibration component 5 can drive the platform 1 to move in the up and down direction relative to the base plate 2, or the vibration component 5 can drive the platform 1 to rotate around the X-axis or Y-axis relative to the base plate 2. The first driving member 51 is a motor, and the first driving member 51 is detachably mounted on the base plate 2.

[0045] The top of the first connecting rod unit 52 is hingedly connected to the platform 1 , and the bottom of the first connecting rod unit 52 is connected to the first output shaft 511 . When the motor is running, the first output shaft 511 is driven to rotate, thereby driving the first connecting rod unit 52 to operate, and further driving the platform 1 to move.

[0046] In some embodiments, the first connecting rod unit 52 includes a first connecting rod 521 , a second connecting rod 522 , a third connecting rod 523 and a fourth connecting rod 524 , and one end of the first connecting rod 521 is connected to the first output shaft 511 in a non-rotatable manner.

[0047] One end of the second connecting rod 522 is rotatably connected to the other end of the first connecting rod 521 .

[0048] One end of the third connecting rod 523 is provided with a first connecting portion 5231 and a second connecting portion 5232. The first connecting portion 5231 is arranged adjacent to the bottom plate 2 relative to the second connecting portion 5232. The second connecting portion 5232 is rotatably connected to the other end of the second connecting rod 522. The other end of the third connecting rod 523 is rotatably connected to the platform 1.

[0049] One end of the fourth connecting rod 524 is rotatably connected to the first output shaft 511 , and the other end of the fourth connecting rod 524 is rotatably connected to the first connecting portion 5231 .

[0050] For example, Figure 4 and Figure 5 As shown, one end of the first connecting rod 521 is detachably connected to the first output shaft 511, and the first output shaft 511 can drive the first connecting rod 521 to rotate when rotating.

[0051] The first connecting rod 521, the second connecting rod 522 and the second connecting portion 5232 of the third connecting rod 523 are rotatably connected in sequence. Specifically, the first connecting rod 521 is hingedly connected to the second connecting rod 522, and the second connecting rod 522 is hingedly connected to the second connecting portion 5232 of the third connecting rod 523.

[0052] The lower end of the fourth connecting rod 524 is rotatably connected to the first output shaft 511. When the first output shaft 511 rotates, the fourth connecting rod 524 will not rotate along with the first output shaft 511. The other end of the fourth connecting rod 524 is hingedly connected to the first connecting portion 5231.

[0053] When the first connecting rod unit 52 is in operation, the first output shaft 511 rotates, thereby driving the first connecting rod 521 to rotate, and the first connecting rod 521 drives the second connecting rod 522 to move up and down, thereby driving the third connecting rod 523 to rotate around the first connecting portion 5231. In this process, the fourth connecting rod 524 can rotate relative to the first output shaft 511 under the drive of the third connecting rod 523. The first connecting rod 521, the second connecting rod 522, the third connecting rod 523 and the fourth connecting rod 524 can be regarded as a four-bar linkage around the first output shaft 511, in which the driving rod is the first connecting rod 521.

[0054] The vibration platform implemented in the present invention adopts a multi-link structure, which can quickly convert the rotation generated by the first driving member 51 into the vibration of the platform 1.

[0055] In some embodiments, there are two first output shafts 511, the two first output shafts 511 are coaxially arranged, the two first connecting rod units 52 are respectively connected to the two first output shafts 511, the other ends of the two third connecting rods 523 are connected through a fifth connecting rod 53, and the fifth connecting rod 53 is provided with a third connecting portion 531, and the third connecting portion 531 is rotatably connected to the platform 1.

[0056] For example, Figure 5 As shown, the first driving member 51 is provided with two first output shafts 511 , in other words, the first driving member 51 is a dual-shaft motor, and the two first output shafts 511 operate synchronously. Each first output shaft 511 is connected to a first connecting rod unit 52 .

[0057] The two ends of the fifth connecting rod 53 are fixedly connected to the two third connecting rods 523 respectively, thus forming a stable frame structure, which helps to reduce shaking during movement.

[0058] A third connecting portion 531 is provided in the middle of the fifth connecting rod 53, a joint bearing is provided on the third connecting portion 531, and an ear plate is provided on the lower surface of the platform 1, and the ear plate is hinged to the joint bearing, thereby enabling the platform 1 to move flexibly in multiple directions.

[0059] In the vibration platform of the embodiment of the present invention, two coaxially arranged first output shafts 511 are used, and both output shafts are connected to a first connecting rod unit 52. Therefore, the movement of the fifth connecting rod 53 can be kept stable, thereby ensuring the accuracy and reliability of the platform 1 during movement.

[0060] It should be noted that the first connecting rod unit 52 of the vibration component 5 in the present application is composed of a plurality of connecting rods, and the overall movement of the first connecting rod unit 52 is formed by the joint movement of the plurality of connecting rods. Compared with a single connecting rod, this multi-connecting rod structure can increase the stroke and reciprocating frequency of the connecting rod end, and can realize complex and wide-range output movement by reasonably combining the movements of different connecting rods. Fig.10 As shown, L represents the distance between the lowest position and the highest position of the vibration component 5 in its movement, that is, L represents the end stroke of the vibration component 5, and the end stroke of the single connecting rod in the prior art is M. In the present application, by reasonably designing the movement of the multi-link, when the motor rotation angle is the same, it can be achieved that L is greater than M, thereby increasing the amplitude of the vibration platform. At the same time, when the stroke of the end of the connecting rod is the same, the motor rotation angle of the multi-link mechanism is smaller than the motor rotation angle of the single connecting rod mechanism, thereby increasing the vibration frequency of the vibration platform per unit time.

[0061] Therefore, the vibration component 5 in the present application is designed with a multi-link mechanism, which increases the stroke of the connecting rod end and the frequency of the connecting rod reciprocating motion, and can drive the platform 1 to vibrate with a larger amplitude and higher frequency, thereby increasing the amplitude and vibration frequency.

[0062] In some embodiments, the motion assembly 4 includes a rotating component 6, which can drive the bottom plate 2 and the platform 1 to rotate relative to the base 3 around the first direction, and the rotating component 6 includes a second driving member 61 and a second connecting rod unit 62, the second driving member 61 is fixedly connected to the bottom plate 2, and the second driving member 61 includes a second output shaft. One end of the second connecting rod unit 62 is non-rotatably connected to the second output shaft, and the other end of the second connecting rod unit 62 is rotatably connected to the base 3.

[0063] For example, Figure 6 and Figure 7 As shown, the rotating component 6 drives the bottom plate 2 to rotate relative to the base 3 with the Z axis (rotating shaft 8) as the axis, and then drives the platform 1 to rotate relative to the base 3 with the Z axis as the axis.

[0064] The second driving member 61 is detachably disposed on the bottom plate 2 . The second driving member 61 is provided with a second output shaft. The second output shaft can drive the second connecting rod unit 62 to operate when rotating.

[0065] When the second connecting rod unit 62 is in operation, the distance between the other end of the second connecting rod unit 62 and the second output shaft changes, so that the position of the second output shaft moves relative to the base 3, thereby causing the bottom plate 2 to rotate relative to the base 3 around the rotating shaft 8.

[0066] In some embodiments, the second connecting rod unit 62 includes a sixth connecting rod 621 and a seventh connecting rod 622. One end of the sixth connecting rod 621 is fixedly connected to the second output shaft. One end of the seventh connecting rod 622 is rotatably connected to the other end of the sixth connecting rod 621. The other end of the seventh connecting rod 622 is rotatably connected to the base 3.

[0067] For example, Figure 7As shown, the sixth connecting rod 621 is hingedly connected to the seventh connecting rod 622, and the seventh connecting rod 622 is hingedly connected to the base 3. When the second output shaft rotates, it can drive the sixth connecting rod 621 to rotate, and the rotation of the sixth connecting rod 621 drives the seventh connecting rod 622 to swing relative to the second driving member 61.

[0068] In other words, the sixth connecting rod 621 and the seventh connecting rod 622 are equivalent to the crank and connecting rod in the crank slider mechanism, and the base 3 is equivalent to the slider. That is, when the second connecting rod unit 62 is in operation, the base 3 can move relative to the bottom plate 2, but the base 3 is fixed, so the bottom plate 2 can move relative to the base 3.

[0069] In some embodiments, a rotating shaft 8 extending along the first direction is disposed on the base 3 , the bottom plate 2 is rotatably connected to the rotating shaft 8 , and the rotating component 6 can drive the bottom plate 2 to rotate around the connecting shaft 8 .

[0070] For example, the base 3 is provided with a rotating shaft 8 extending in the up-down direction, the base 3 and the rotating shaft 8 are fixedly connected, a through hole matching the rotating shaft 8 is provided on the lower surface of the bottom plate 2, and the rotating component 6 drives the bottom plate 2 to rotate around the rotating shaft 8.

[0071] Optionally, a rolling member is provided between the base 3 and the bottom plate 2, and the rolling member can assist the bottom plate 2 to move relative to the base 3, so that the bottom plate 2 moves more smoothly. The rolling member is provided on the base 3 or the bottom plate 2, for example, a groove is provided on the base 3, the lower part of the rolling member is rotatably provided in the groove, and the upper part of the rolling member extends out of the groove and contacts the lower surface of the bottom plate 2.

[0072] Optionally, there are multiple rolling elements, for example, there are 2, 4 or 6 rolling elements.

[0073] In some embodiments, a limiting assembly 9 is provided on the base 3 , and the limiting assembly 9 includes a bracket 91 and a roller 92 . The bracket 91 is fixedly connected to the base 3 , and a first gap is provided between the bracket 91 and the side of the bottom plate 2 .

[0074] The roller 92 is rotatably disposed on the bracket 91 , and the outer peripheral surface of the roller 92 can contact the surface of the bottom plate 2 adjacent to the platform 1 .

[0075] For example, Figure 6 and Fig. 9 As shown, the bottom of the bracket 91 is fixed on the base 3, and the bracket 91 is spaced apart from the side of the bottom plate 2 to form a first gap.

[0076] When the bottom plate 2 rotates around the Z axis relative to the base 3 , the side of the bottom plate 2 swings back and forth relative to the bracket 91 , and the first gap provides a margin for the swing of the bottom plate 2 to prevent the bottom plate 2 from hitting the bracket 91 .

[0077] A connecting shaft 93 is arranged above the bracket 91, and the connecting shaft 93 extends above the bottom plate 2. The roller 92 is mounted on the connecting shaft 93, and the roller 92 is arranged above the bottom plate 2. When the bottom plate 2 rotates around the Z axis, the roller 92 can assist the rotation of the bottom plate 2. At the same time, the roller 92 can effectively limit the movement of the bottom plate 2 in the up and down directions, thereby preventing the bottom plate 2 from jumping in the up and down directions when it is subjected to external interference or its own inertia.

[0078] The vibration platform implemented in the present invention limits the up and down movement of the bottom plate 2 by means of the roller 92, thereby reducing the interference caused by vibration, thereby improving the stability of the bottom plate 2 during the rotation process, and further improving the stability of the vibration platform.

[0079] It is understandable that the position of the rotating shaft 8 can be designed according to actual conditions. For example, the rotating shaft 8 can be arranged near the edge of the bottom plate 2 or at the center of the bottom plate 2 .

[0080] In some embodiments, the elastic component 7 includes a support 71, an elastic member 72 and a support rod 73. The support 71 is rotatably connected to the base plate 2. One end of the elastic member 72 is connected to the support 71. One end of the support rod 73 is connected to the elastic member 72, and the other end of the support rod 73 is rotatably connected to the platform 1.

[0081] For example, Figure 8 As shown, the support 71 is hinged to the base plate 2, the lower end of the elastic member 72 is connected to the support 71, the upper end of the elastic member 72 is connected to the lower end of the support rod 73, the upper end of the support rod 73 is hinged to the platform 1, and the elastic member 72 has a force that causes the support rod 73 to move toward the platform 1.

[0082] There are multiple elastic components 7, and the multiple elastic components 7 are arranged at intervals between the base plate 2 and the platform 1.

[0083] When it is necessary to simulate the vibration environment of the helicopter in various flight states, the operator applies a load to the platform 1 , and the elastic member 72 has a force to urge the support rod 73 to move toward the platform 1 , thereby pre-supporting the load applied to the platform 1 .

[0084] When the vibration component 5 moves, it is beneficial to increase the corresponding speed of the first connecting rod unit 52 or the second connecting rod unit 62, thereby increasing the response speed and vibration frequency of the platform 1, which is beneficial to quickly simulate the flight state of the helicopter.

[0085] Optionally, the elastic component 7 also includes a protective shell 74, which is sleeved on the outer peripheral side of the elastic member 72, so as to protect the elastic member 72 and increase the service life of the elastic member 72, and to guide the movement of the elastic member 72, thereby improving the stability of the elastic component 7.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. 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 replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vibration platform, characterized in that: include: A platform, wherein the platform is used to install a helicopter simulator; A bottom plate, the bottom plate is connected to the platform and arranged at intervals in a first direction; A base, the base is arranged on a side of the bottom plate away from the platform and spaced apart from the bottom plate; A motion component, the motion component is arranged between the bottom plate and the platform, and the motion component can drive the platform to move relative to the base; An elastic component is arranged between the base plate and the platform, and is used to support the platform.

2. The vibration platform according to claim 1, characterized in that: The motion assembly includes a vibration component, and the vibration component can drive the platform to move relative to the base plate. The vibration component includes: A first driving member, the first driving member is fixedly connected to the bottom plate, and the first driving member comprises a first output shaft; A first connecting rod unit, one end of the first connecting rod unit is connected to the first output shaft, and the other end of the first connecting rod unit is rotatably connected to the platform.

3. The vibration platform according to claim 2, characterized in that: The first connecting rod unit comprises: a first connecting rod, one end of which is non-rotatably connected to the first output shaft; a second connecting rod, one end of which is rotatably connected to the other end of the first connecting rod; A third connecting rod, wherein one end of the third connecting rod is provided with a first connecting portion and a second connecting portion, the first connecting portion is arranged adjacent to the bottom plate relative to the second connecting portion, the second connecting portion is rotatably connected to the other end of the second connecting rod, and the other end of the third connecting rod is rotatably connected to the platform; A fourth connecting rod, one end of which is rotatably connected to the first output shaft, and the other end of which is rotatably connected to the first connecting portion.

4. The vibration platform according to claim 3, characterized in that: There are two first output shafts, which are coaxially arranged. The two first connecting rod units are respectively connected to the two first output shafts. The other ends of the two third connecting rods are connected through a fifth connecting rod. The fifth connecting rod is provided with a third connecting portion, which is rotatably connected to the platform.

5. The vibration platform according to claim 2, characterized in that: There are a plurality of vibration components, and the plurality of vibration components are arranged at intervals along the circumferential direction of the base plate.

6. The vibration platform according to any one of claims 1 to 5, characterized in that: The motion assembly includes a rotating component, which can drive the bottom plate and the platform to rotate relative to the base around the first direction, and the rotating component includes: A second driving member, the second driving member is fixedly connected to the base plate, and the second driving member comprises a second output shaft; A second connecting rod unit, one end of the second connecting rod unit is connected to the second output shaft in a non-rotatable manner, and the other end of the second connecting rod unit is connected to the base in a rotatable manner.

7. The vibration platform according to claim 6, characterized in that: The second connecting rod unit comprises: a sixth connecting rod, one end of which is non-rotatably connected to the second output shaft; A seventh connecting rod, one end of which is rotatably connected to the other end of the sixth connecting rod, and the other end of which is rotatably connected to the base.

8. The vibration platform according to any one of claims 1 to 5, characterized in that: The elastic component comprises: A support, the support being rotatably connected to the base plate; An elastic member, one end of which is connected to the support; A support rod, one end of which is connected to the elastic member, and the other end of which is rotatably connected to the platform.

9. The vibration platform according to claim 6, characterized in that: The base is provided with a connecting shaft extending along the first direction, the bottom plate is rotatably connected to the connecting shaft, and the rotating component can drive the bottom plate to rotate around the connecting shaft.

10. The vibration platform according to claim 1, characterized in that: The base is provided with a limit assembly, and the limit assembly comprises: A bracket, wherein the bracket is fixedly connected to the base, and a first gap is provided between the bracket and a side surface of the bottom plate; A roller is rotatably arranged on the bracket, and an outer peripheral surface of the roller can contact the surface of the bottom plate adjacent to the platform.

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