CN215941234U - Thrust reverser structure - Google Patents
Thrust reverser structure Download PDFInfo
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- CN215941234U CN215941234U CN202121493189.4U CN202121493189U CN215941234U CN 215941234 U CN215941234 U CN 215941234U CN 202121493189 U CN202121493189 U CN 202121493189U CN 215941234 U CN215941234 U CN 215941234U
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- thrust reverser
- buffer
- support
- support ring
- piston rod
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Abstract
The utility model provides a thrust reverser structure, which comprises a cylinder body, wherein a cavity is arranged in the cylinder body, a piston rod extends into the cavity, a supporting ring is arranged outside an opening of the cylinder body, the piston rod can extend out or retract into the cavity through the supporting ring, a buffering support is arranged outside the cylinder body and is connected with the piston rod, an elastic buffering part arranged towards the cylinder body is arranged on the buffering support, and when the piston rod retracts into the cavity, the elastic buffering part can abut against the supporting ring. This thrust reverser structure, the buffering support can stretch out or withdraw and move and cushion thrust reverser relatively through the elasticity of elastic buffer portion along with the piston rod, when effectively receiving up the thrust reverser reduction of time speed, select the atress position of buffering for between the outside buffering support of thrust reverser and the support ring, greatly reduced is to the impact load of thrust reverser itself, reduce the strength requirement to thrust reverser structure, thrust reverser inner structure, it provides the income to subtract heavy the weight of thrust reverser.
Description
Technical Field
The utility model relates to the field of aviation, in particular to a thrust reverser structure.
Background
The reverse thrust device drives the movable outer cover by using a reverse thrust actuator, and when the actuator piston extends out, the movable outer cover is pushed away to realize reverse thrust expansion, so that reverse thrust is generated to realize a reverse thrust function; when the actuator piston retracts, the movable outer cover is pulled back, and the retraction and the locking of the thrust reverser are realized.
The shorter the retraction time of the thrust reverser is, the better the performance is, but the shorter the retraction time is, the larger the retraction speed is required to correspond to, so that when the thrust reverser is close to a fully retracted position, the impact load caused by the larger speed has to be considered, the structural strength of the thrust reverser needs to be stronger, and meanwhile, higher requirements are also provided for the internal design of an actuator part of the thrust reverser, so that the structural design is complex and the weight is increased. Therefore, it is necessary to design the speed buffer for the retracting end of the thrust reverser.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of complex structural design and increased weight caused by large impact load of a thrust reverser structure in the prior art, and provides a thrust reverser structure.
The utility model solves the technical problems through the following technical scheme:
a thrust reverser structure is characterized by comprising:
the cylinder body is internally provided with a cavity;
a piston rod extending into the cavity;
a support ring disposed outside the cylinder opening, through which the piston rod can be extended out of or retracted into the cavity;
the buffer support is arranged outside the cylinder body and connected with the piston rod, the buffer support comprises an elastic buffer part facing the cylinder body, and when the piston rod is retracted into the cavity, the elastic buffer part can abut against the support ring.
In this scheme, adopt above-mentioned structure, pack up terminal buffering to the thrust reverser through setting up buffering support and support ring, the buffering support can be followed the piston rod stretches out or withdraws and relative the cylinder body removes and cushions the thrust reverser through the elasticity of elastic buffer portion, when effectively packing up the thrust reverser, carries out progressively reducing of speed, selects the atress position of buffering as between the outside buffering support of thrust reverser and support ring, greatly reduced to the impact load of thrust reverser itself, reduces the intensity requirement to thrust reverser structure, thrust reverser inner structure, provides the profit for losing weight of thrust reverser.
Preferably, the elastic buffer portion includes:
the fixing part is arranged on the buffer support and is provided with a through hole;
the buffer rod penetrates through the through hole to be arranged on the fixing part, two ends of the buffer rod, which are positioned on two sides of the fixing part, are respectively provided with a contact block and a limiting part, the contact block is arranged towards the support ring, and the diameter of the limiting part is larger than the aperture of the through hole;
the elastic piece is sleeved on the buffer rod, two ends of the elastic piece respectively abut against the contact block and the fixing part, and the buffer rod can penetrate through the through hole on the fixing part to reciprocate so as to compress or release the elastic piece.
In this scheme, the buffer beam can move on the fixed part, and when the piston rod withdrawed, the contact piece of buffer beam contacted the support ring, and the buffer beam then removed and extruded elastic component to the fixed part, and the elastic component produced elasticity and blockked the buffer beam and withdrawed and make its deceleration, played the buffering effect.
Preferably, one surface of the contact block facing the support ring is provided with a rubber block.
In this scheme, adopt above-mentioned structure, when closing on to pack up the end, buffer structure's block rubber at first presses the dog of cascade support ring, along with further packing up, the buffer beam is promoted backward by the dog, begins compression spring to realize the buffering of packing up speed, is packed up completely and speed reduces to zero until the reverse thrust, can slow down the impact that the elastic buffer portion cushioned, slows down contact block in use's wearing and tearing, increases the durability of reverse thrust device structure.
Preferably, the elastic member is a spring.
In this scheme, adopt above-mentioned structure, buffer structure mainly utilizes the spring to realize, and the scheme principle is simple, low cost.
Preferably, the buffer rod is a screw rod, and the limiting part is a fastening nut.
In this scheme, adopt above-mentioned structure, fastening nut passes through the threaded fixation at the buffer beam afterbody, and when the elastic component stretches out when reseing under the elastic action, fastening nut supported the fixed part and avoided it to deviate from.
Preferably, a stop block is arranged on one outward side of the support ring, and the stop block extends towards the direction opposite to the central direction of the support ring;
the support ring is in contact with the contact block through the stop block.
In this scheme, adopt above-mentioned structure, on the support ring with contact piece corresponds the position and is equipped with the dog, can increase the area of contact of support ring and elastic buffer portion through dog and contact piece contact, promotes the buffering effect.
Preferably, the end of the piston rod facing the buffer support comprises a crank, and the crank comprises a mounting hole;
and the buffer support is provided with a connecting shaft which passes through the assembling hole and is fixed.
In this scheme, adopt above-mentioned structure, adopt crank and connecting axle to connect piston rod and buffering support, simple structure, joint strength is high, and transmission performance is good.
Preferably, the crank is circular, the buffering support comprises a first connecting plate and a second connecting plate which are parallel to the crank, the first connecting plate and the second connecting plate are respectively provided with a first connecting hole and a second connecting hole, the crank is clamped between the first connecting plate and the second connecting plate, the connecting shaft sequentially penetrates through the first connecting hole, and the assembling hole and the second connecting hole are fixed.
In this scheme, adopt above-mentioned structure, the buffering support presss from both sides the crank of buffer beam through two connecting plates and establishes wherein, connects more firmly, and joint strength is better, further promotes buffer structure's joint strength.
Preferably, the thrust reverser structure further comprises a movable outer cover, and the buffer support is fixedly mounted on the movable outer cover.
Preferably, the thrust reverser structure further comprises a leaf grid, and the support ring is fixed on the leaf grid.
The positive progress effects of the utility model are as follows: the utility model discloses a thrust reverser structure, which buffers the retracting tail end of the thrust reverser by arranging a buffer support and a support ring, and simultaneously, the speed is gradually reduced when the thrust reverser is retracted, and the stress position of the buffer is selected between the buffer support and the support ring outside the thrust reverser, so that the impact load on the thrust reverser is greatly reduced, the strength requirements on the thrust reverser structure and the internal structure of the thrust reverser are reduced, and the benefit is provided for reducing the weight of the thrust reverser.
Drawings
Fig. 1 is a schematic structural diagram of a thrust reverser according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a support ring of the thrust reverser structure according to the embodiment of the utility model.
Fig. 3 is a schematic structural diagram of a buffer support of a thrust reverser structure according to an embodiment of the utility model.
Fig. 4 is a schematic structural diagram of a piston rod of the thrust reverser structure according to the embodiment of the utility model in an extended state.
Fig. 5 is a schematic structural diagram of a piston rod retracting state of a thrust reverser structure according to an embodiment of the utility model.
Description of reference numerals:
Support ring 2
Crank 3
Stop 6
Contact block 7
First connecting plate 11
Second connecting plate 12
Fitting hole 15
Fixed part 16
Detailed Description
The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.
As shown in fig. 1 to 5, the thrust reverser structure of the present embodiment includes a cylinder 17, a piston rod, a support ring 2, and a cushion mount 5. The cylinder 17 has a cavity therein into which the piston rod extends. The support ring 2 is arranged outside the opening of the cylinder 17 and the piston rod can be extended out or retracted into the cavity through the support ring 2. The buffer support 5 is arranged outside the cylinder body 17, the buffer support 5 is connected with the piston rod, the buffer support 5 is provided with an elastic buffer part arranged towards the cylinder body 17, and when the piston rod is retracted into the cavity, the elastic buffer part can abut against the support ring 2.
In this embodiment, the support ring 2 and the cylinder 17 are fixed to each other, the buffer support 5 and the support ring 2 are arranged to buffer the retracting end of the thrust reverser, the buffer support 5 can move relative to the cylinder 17 along with the extension or retraction of the piston rod and buffer the thrust reverser through the elasticity of the elastic buffer part, when the thrust reverser is effectively retracted, the speed is gradually reduced, and meanwhile, the stress position of the buffer is selected between the buffer support 5 and the support ring 2 outside the thrust reverser, so that the impact load on the thrust reverser is greatly reduced, the strength requirements on the thrust reverser and the internal structure of the thrust reverser are reduced, and benefits are provided for reducing the weight of the thrust reverser.
As shown in fig. 4, when the piston rod extends out, the buffer support 5 is driven to move, and the support ring 2 is not in contact with the elastic buffer part on the buffer support 5. As shown in fig. 5, when the piston rod is retracted, the buffer support 5 is brought close to the cylinder 17, and the elastic buffer part is in contact with the support ring 2.
As shown in fig. 3 to 5, the elastic buffer portion includes a fixed portion 16, a buffer rod 8 and an elastic member 9. The fixing portion 16 is disposed on the buffer support 5 and has a through hole. Buffer rod 8 passes the through-hole setting on fixed part 16, and the both ends that buffer rod 8 is located fixed part 16 both sides are equipped with contact block 7 and spacing portion 10 respectively, and contact block 7 sets up towards support ring 2, and the diameter of spacing portion 10 is greater than the aperture of through-hole. The elastic member 9 is sleeved on the buffer rod 8, two ends of the elastic member 9 respectively abut against the contact block 7 and the fixing portion 16, and the buffer rod 8 can pass through the through hole on the fixing portion 16 to reciprocate so as to compress or release the elastic member 9.
In this embodiment, the fixing portion 16 protrudes along the upper portion of the buffer support 5 to form a seat. The fixing portion 16 is hollow to form a through hole, the extending direction of the through hole is consistent with the moving direction of the piston rod, and the diameter of the through hole is also consistent with the diameter of the buffer rod 8. The contact block 7 is square on the surface contacting with the support ring 2, so that the contact area is as large as possible, and the support block and the buffer rod 8 are integrally formed.
The buffer rod 8 can move on the fixed part 16, when the piston rod retracts, the contact block 7 of the buffer rod 8 contacts the support ring 2, the buffer rod 8 moves towards the fixed part 16 and presses the elastic part 9, and the elastic part 9 generates elastic force to prevent the buffer rod 8 from retracting to reduce the speed, so that the buffer effect is achieved.
As shown in fig. 3 to 5, the contact block 7 is provided with a rubber block on its side facing the support ring 2.
In this embodiment, the contact block 7 is square, and the rubber block is fitted to the surface of the contact block 7 contacting the support ring 2 in a shape corresponding to the square. The rubber block is sheet-shaped and is arranged on the contact block 7 in an adhesive mode.
When closing to and packing up the end, buffer structure's block rubber is at first pressed on the dog 6 of cascade support ring 2, along with further packing up, buffer rod 8 is promoted backward by dog 6, begins compression spring to realize the buffering of packing up the speed, is packed up completely and speed reduces to zero until the counterthrust, can slow down the impact of buffering, slows down the wearing and tearing of contact piece 7 in use, increases the durability of counterthrust device structure.
As shown in fig. 3 to 5, the elastic member 9 is a spring.
In this embodiment, the spring is sleeved on the buffer rod 8, two ends of the spring respectively abut against the contact block 7 and the fixing portion 16, and the spring is compressed when the contact block 7 is forced to drive the buffer rod 8 to move towards the fixing portion 16.
The buffer structure is mainly realized by a spring, and the scheme principle is simple and the cost is low.
As shown in fig. 3 to 5, the buffer rod 8 is a screw, and the stopper 10 is a fastening nut.
In this embodiment, the fastening nut is fixed at the tail of the buffer rod 8 through threads, and when the elastic member 9 is extended when being reset under the action of elasticity, the fastening nut abuts against the fixing portion 16 to prevent the fastening nut from being removed.
As shown in fig. 2, a stopper 6 is provided on the outward side of the support ring 2, the stopper 6 extends in a direction opposite to the center direction of the support ring 2, and the support ring 2 is in contact with the contact block 7 through the stopper 6.
In this embodiment, the support ring 2 is disposed outside the outlet of the cylinder 17, the stopper 6 is formed to extend downward from the lower portion of the support ring 2, the shape of the stopper 6 is consistent with that of the support block, so as to ensure that the contact between the support ring and the support block is more stable, and the stopper 6 is located right on the moving path of the contact block 7 moving along with the piston rod.
The position corresponding to the contact block 7 on the support ring 2 is provided with a stop dog 6, the contact area of the support ring 2 and the elastic buffering part can be increased by the contact of the stop dog 6 and the contact block 7, impact load can be effectively transmitted, and the buffering effect is improved.
As shown in fig. 1, 4 and 5, the end of the piston rod facing the cushion support 5 comprises a crank 3, and the crank 3 comprises a fitting hole 15. The buffer support 5 is provided with a connecting shaft which passes through the assembly hole 15 and is fixed.
In the embodiment, the crank 3 and the connecting shaft are connected with the piston rod and the buffer support 5, so that the structure is simple, the connection strength is high, and the transmission performance is good.
As shown in fig. 1, 4 and 5, the crank 3 is annular, the buffer support 5 includes a first connecting plate 11 and a second connecting plate 12 parallel to the crank 3, the first connecting plate 11 and the second connecting plate 12 are respectively provided with a first connecting hole 13 and a second connecting hole 14, the crank 3 is clamped between the first connecting plate 11 and the second connecting plate 12, and the connecting shaft sequentially passes through the first connecting hole 13, the assembling hole 15 and the second connecting hole 14 and is fixed.
In this embodiment, the first connecting plate 11 and the second connecting plate 12 are two parallel plates disposed at an interval and disposed on the buffering support 5 and extending upward, the two plates have corresponding positions provided with a first connecting hole 13 and a second connecting hole 14, and the connecting shaft passes through the first connecting hole 13 and the second connecting hole 14 and is fixed between the two plates by bolts at the head and the tail ends. The crank 3 is arranged in the gap between the two sides, and the crank 3 is fixed on the buffer support 5 by a connecting shaft passing through a mounting hole 15 in the center of the crank 3.
As shown in figure 1, the thrust reverser structure further comprises a movable outer cover 4, and a buffer support 5 is fixedly arranged on the movable outer cover 4.
In this embodiment, the buffer support 5 is fixed on the movable housing 4 by a bolt, the movable housing 4 can move relative to the cylinder 17, and when the piston rod extends out of or retracts into the cylinder 17, the piston rod drives the movable housing 4 to move correspondingly.
As shown in fig. 1 and 2, the thrust reverser structure further comprises a leaf grid 1, and the support ring 2 is fixed on the leaf grid 1.
In this embodiment, the grids 1 are located at both sides of the cylinder 17, and the edges of the grids 1 are fixed on the grid rings by bolts.
The support ring 2 of the present embodiment also functions to support the wicker 1 for mounting the wicker 1 to a thrust reverser structure.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.
Claims (10)
1. A thrust reverser structure, characterized in that it comprises:
the cylinder body is internally provided with a cavity;
a piston rod extending into the cavity;
a support ring disposed outside the cylinder opening, through which the piston rod can be extended out of or retracted into the cavity;
the buffer support is arranged outside the cylinder body and connected with the piston rod, the buffer support comprises an elastic buffer part facing the cylinder body, and when the piston rod is retracted into the cavity, the elastic buffer part can abut against the support ring.
2. The thrust reverser structure according to claim 1, wherein the elastic buffer comprises:
the fixing part is arranged on the buffer support and is provided with a through hole;
the buffer rod penetrates through the through hole to be arranged on the fixing part, two ends of the buffer rod, which are positioned on two sides of the fixing part, are respectively provided with a contact block and a limiting part, the contact block is arranged towards the support ring, and the diameter of the limiting part is larger than the aperture of the through hole;
the elastic piece is sleeved on the buffer rod, two ends of the elastic piece respectively abut against the contact block and the fixing part, and the buffer rod can penetrate through the through hole on the fixing part to reciprocate so as to compress or release the elastic piece.
3. The thrust reverser structure according to claim 2, wherein the side of the contact block facing the support ring is provided with a rubber block.
4. The thrust reverser structure according to claim 2, wherein the elastic member is a spring.
5. The thrust reverser structure according to claim 2, wherein the buffer rod is a screw, and the stopper is a fastening nut.
6. The thrust reverser structure according to claim 2, wherein the support ring is provided on an outward-facing side thereof with a stopper extending in a direction opposite to a center direction of the support ring;
the support ring is in contact with the contact block through the stop block.
7. The thrust reverser structure according to claim 1, wherein the end of the piston rod facing the cushion mount comprises a crank including a fitting hole;
and the buffer support is provided with a connecting shaft which passes through the assembling hole and is fixed.
8. The thrust reverser structure according to claim 7, wherein the crank is annular, the buffer support includes a first connecting plate and a second connecting plate parallel to the crank, the first connecting plate and the second connecting plate are respectively provided with a first connecting hole and a second connecting hole, the crank is clamped between the first connecting plate and the second connecting plate, the connecting shaft sequentially passes through the first connecting hole, and the assembling hole and the second connecting hole are fixed.
9. The thrust reverser structure according to claim 1, further comprising a moving housing, the cushion mount being mounted and secured to the moving housing.
10. The thrust reverser structure according to claim 1, wherein the thrust reverser structure further comprises a leaf-grid on which the support ring is secured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121493189.4U CN215941234U (en) | 2021-06-30 | 2021-06-30 | Thrust reverser structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121493189.4U CN215941234U (en) | 2021-06-30 | 2021-06-30 | Thrust reverser structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215941234U true CN215941234U (en) | 2022-03-04 |
Family
ID=80435931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121493189.4U Active CN215941234U (en) | 2021-06-30 | 2021-06-30 | Thrust reverser structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215941234U (en) |
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2021
- 2021-06-30 CN CN202121493189.4U patent/CN215941234U/en active Active
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