CN213899742U

CN213899742U - Separating buffer stop board

Info

Publication number: CN213899742U
Application number: CN202021989005.9U
Authority: CN
Inventors: 楼京俊; 杨庆超; 赵存生; 张振海
Original assignee: Naval University of Engineering PLA
Current assignee: Naval University of Engineering PLA
Priority date: 2020-09-13
Filing date: 2020-09-13
Publication date: 2021-08-06
Anticipated expiration: 2030-09-13

Abstract

The utility model relates to a technical field that makes an uproar falls in the damping especially relates to disconnect-type buffering check plate, include: a stop block and a backing plate; the stop block is a part which is provided with an inclined surface on the stop plate and is contacted with the resistance reducing plate; the backing plate is a part of the bottom of the stop plate bearing the stop block; a rubber buffer pad capable of bearing vibration impact of the resistance reducing plate is arranged on the inclined surface of the stop block; and a buffer unit for buffering vibration impact of the resistance reducing plate is arranged between the stop block and the base plate. The utility model is not only simple in structure, realize moreover that the in-process of making an uproar is fallen and need not the cooperation of other members in the navigation ware.

Description

Separating buffer stop board

Technical Field

The utility model relates to a technical field of making an uproar falls in the damping especially relates to disconnect-type buffering plate that ends.

Background

The aircraft may have a plurality of channels with a front cover disposed over each channel port. As shown in fig. 1, when the front cover is opened to the proper position, the resistance reducing plate collides with the stopper plate, which generates a large impact noise. The opening noise of the resistance reducing plate is reduced, and the impact stress can be reduced by reducing the impact speed when the resistance reducing plate is contacted with the stop plate or increasing the contact time of the resistance reducing plate and the stop plate.

In the prior art, the method is realized by optimizing a hydraulic transmission control system. However, the optimization method is not only complex but also requires the cooperation of a plurality of components, and the satisfactory noise reduction effect is difficult to achieve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a disconnect-type buffering retaining plate, it is simple structure not only, realizes moreover that the in-process of making an uproar of falling need not the cooperation of other members in the navigation ware.

The utility model provides a disconnect-type buffering plate that ends, include: a stop block and a backing plate;

the stop block is a part which is provided with an inclined surface on the stop plate and is contacted with the resistance reducing plate;

the backing plate is a part of the bottom of the stop plate bearing the stop block;

a rubber buffer pad capable of bearing vibration impact of the resistance reducing plate is arranged on the inclined surface of the stop block;

and a buffer unit for buffering vibration impact of the resistance reducing plate is arranged between the stop block and the base plate.

Further, the buffer unit includes: the damping device comprises a mounting plate and a damping module;

the mounting plate is fixedly arranged at the bottom of the stop block;

one surface of the base plate facing the bottom of the stop block is provided with a square groove matched with the mounting plate;

the mounting plate is installed in square groove and connected through the vibration damping module.

Furthermore, the rubber buffer pad is obliquely inserted into the stop block through the T-shaped connecting plate, so that the rubber buffer pad protrudes out of the inclined surface of the stop block.

Still further, the vibration damping module includes: a guide post and a damping spring;

one surface of the mounting plate facing the square groove is provided with a plurality of blind holes;

the blind holes are matched with the guide columns and the damping springs in shape and are in one-to-one correspondence;

the guide post and the damping spring are fixedly arranged in the square groove, and after the mounting plate is fit in the square groove, the guide post and the damping spring are both located in the corresponding blind holes.

Furthermore, the damping springs are distributed in a matrix form in the square groove;

the bottom end of each damping spring is fixed on the bottom surface of the square groove, and the top end of each damping spring is fixed on the top wall of the corresponding blind hole;

when the mounting plate is fit in the square groove and the stop block does not bear the vibration impact of the resistance reducing plate, the surface of the mounting plate facing the square groove is away from the bottom surface of the square groove by a preset distance.

Furthermore, the guide posts are distributed in a matrix form in the square groove;

a damping spring is arranged between two adjacent guide posts;

the height of each guide post is lower than that of the square groove;

the height of each guide post is higher than that of the corresponding blind hole.

Still further, the bottom of each damping spring is fixed in the bottom surface of the square groove through a first connecting block, and the top end of each damping spring is fixed on the top wall of the corresponding blind hole through a second connecting block.

Still further, each guide post is a multilayer overlapping structure including: an elastic block and a hard block;

the elastic blocks and the hard blocks of the same guide column are alternately arranged at intervals.

In the technical scheme, the rubber cushion pad is vulcanized on the end face of the T-shaped connecting plate;

the inclined surface of the stop block is provided with a groove matched with the plane of the T-shaped connecting plate;

and after the T-shaped connecting plate is inserted into the groove in the stop block, the T-shaped connecting plate is fixedly connected with the stop block through a fixing bolt and a locking nut.

In the technical scheme, the surfaces of the stop block, the base plate and the mounting plate are covered with an anticorrosive coating for preventing seawater corrosion.

The utility model discloses in, cut apart into backstop piece and backing plate with the backstop board. The rubber buffer cushion is arranged on the inclined surface of the stop plate to directly face the impact of the resistance reducing plate, the rubber buffer cushion can reduce the impact speed of the resistance reducing plate and the stop plate, and the contact time of the resistance reducing plate and the stop plate is prolonged, so that the noise generated by the impact of the resistance reducing plate and the stop plate is reduced.

On the other hand, a buffer unit is arranged between the stop block and the base plate and used for buffering the impact of the resistance reducing plate, so that the impact speed of the resistance reducing plate and the stop plate is further reduced, and the contact time of the resistance reducing plate and the stop plate is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the structure of a stop plate and drag reduction plate of an aircraft;

fig. 2 is a schematic three-dimensional structure in an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a stopper block according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a guide post according to an embodiment of the present invention;

FIG. 5 is a plot of fairing angular velocity for an aircraft;

FIG. 6 is a fairing angular acceleration profile for an aircraft;

FIG. 7 is a plot of flight vehicle drag reduction plate impact force variation.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 5 to 7, in order to find the magnitude of the impact force of the drag reduction plate with the stopper plate, it is necessary to determine the velocity, acceleration and time history of the drag reduction plate. Although the whole process can be regarded as a uniform acceleration process, the velocity of the drag reduction plate is always increased before the collision, which causes the final collision force to be too large and the noise to be too high. From the impact force profile of fig. 7, it can be seen that the maximum impact force reached 14791N. To solve this problem, the collision time between the resistance reducing plate and the stopper plate must be prolonged to make the collision more stable and reduce the peak force generated during collision. Therefore, the collision time can be increased by additionally arranging the rubber anti-impact pad, the impact force generated in the collision process is reduced, and the noise generated in the collision is reduced.

As shown in fig. 2, the separated buffering stopper provided in this embodiment includes: a stopper 4 and a backing plate 3;

the stop block 4 is a part which is provided with an inclined surface on the stop plate and is contacted with the resistance reducing plate;

the backing plate 3 is a part of the bottom of the stop plate bearing the stop block 4;

a rubber buffer pad 12 capable of bearing vibration impact of the resistance reducing plate is arranged on the inclined surface of the stop block 4;

and a buffer unit for buffering vibration impact of the resistance reducing plate is arranged between the stop block 4 and the backing plate 3.

In the present embodiment, the stopper plate is divided into the stopper piece 4 and the backing plate 3. The rubber buffer cushion 12 is arranged on the inclined surface of the stop plate to directly face the impact of the resistance reducing plate, the rubber buffer cushion 12 can reduce the impact speed of the resistance reducing plate and the stop plate, and the contact time of the resistance reducing plate and the stop plate is prolonged, so that the noise generated by the impact of the resistance reducing plate and the stop plate is reduced.

The noise is generated by the rigid collision of the baffle plate with the stopper plate, which has a short contact time and a large impact force, resulting in excessive impact noise. The rubber material with excellent performance is arranged on the stop block 4, so that part of impact energy can be absorbed, vibration is reduced, collision time is prolonged, and noise is reduced; and can isolate some noises, further reduce the influence of the noise. In addition, the rubber buffer cushion 12 is additionally arranged, so that the abrasion of metal can be avoided, and the maintenance is convenient.

On the other hand, a buffer unit is arranged between the stop block 4 and the backing plate 3 and is used for buffering the impact of the resistance reducing plate, so that the impact speed of the resistance reducing plate and the stop plate is further reduced, and the contact time of the resistance reducing plate and the stop plate is prolonged.

As shown in fig. 2, the buffer unit includes: a mounting plate 10 and a damping module;

the mounting plate 10 is fixedly arranged at the bottom of the stop block 4;

one surface of the base plate 3 facing the bottom of the stop block 4 is provided with a square groove 5 matched with the mounting plate 10;

the mounting plate 10 is installed in the square groove 5 and connected through a damping module.

As shown in fig. 3, the rubber buffer pad 12 is inserted into the stopper 4 obliquely through the T-shaped connecting plate 13, so that the rubber buffer pad 12 protrudes from the oblique surface of the stopper 4.

The rubber cushion pad 12 is vulcanized on the end face of the T-shaped connecting plate 13;

the inclined surface of the stop block 4 is provided with a groove matched with the plane of the T-shaped connecting plate 13;

the T-shaped connecting plate 13 is fixedly connected with the stop block 4 through a fixing bolt 14 and a locking nut 15 after being inserted into a groove in the stop block 4.

In this embodiment, the thicker the rubber buffer pad 12, the larger the deformation, the smaller the maximum impact force, and the better the impact resistance effect, so the selected thickness of the impact resistant pad should be as thick as possible on the premise of meeting the actual structural and space requirements. The T-shaped connecting plate 13 is made of metal, and the rubber cushion 12 is vulcanized and fixed on the end face of the T-shaped connecting plate 13. The rubber buffer cushion 12 is of a cuboid structure, and the shape and the area of the end face of the T-shaped connecting plate 13 are the same as those of the vulcanized surface of the rubber buffer cushion 12.

The structure of the T-shaped connecting plate 13 not only can firmly fix the rubber cushion 12 in the stopper 4, but also can disperse the impact force of the damper plate received by the rubber cushion 12. Because the plane of the T-shaped connecting plate 13 is larger than the end surface thereof, and the T-shaped connecting plate 13 is inserted into the stopper 4, the area of the inside of the stopper 4, which bears the impact force transmitted by the rubber buffer 12, is larger than the area of the end surface of the T-shaped connecting plate, which bears the impact force transmitted by the rubber buffer 12. Therefore, the T-shaped connecting plate 13 is inserted into the stop block 4 in an inverted mode, the impact force of the resistance reducing plate can be dispersed, and the impact bearing effect is further achieved.

Since the aircraft travels at sea for a long period of time, the rubber bumper 12 may be in contact with seawater for a long period of time, and the material of the rubber bumper 12 is a special material for preventing seawater corrosion in order to prevent the lowering of the noise reduction function. The surfaces of the stopper 4, the backing plate 3 and the mounting plate 10 are all covered with an anticorrosive coating for preventing seawater corrosion.

As shown in fig. 2 and 3, the vibration damping module includes: a guide post 6 and a damping spring 9;

a plurality of blind holes 11 are formed in one surface, facing the square groove 5, of the mounting plate 10;

the blind holes 11 are matched with the guide columns 6 and the damping springs 9 in shape and are in one-to-one correspondence;

the guide post 6 and the damping spring 9 are fixedly arranged in the square groove 5, and after the mounting plate 10 is fit in the square groove 5, the guide post 6 and the damping spring 9 are both positioned in the corresponding blind holes 11.

The vibration damping springs 9 are distributed in the square groove 5 in a matrix manner;

the bottom end of each damping spring 9 is fixed on the bottom surface of the square groove 5, and the top end of each damping spring is fixed on the top wall of the corresponding blind hole 11;

when the mounting plate 10 is fitted in the square groove 5 and the stop block 4 does not bear the vibration impact of the resistance reducing plate, a preset distance is kept between one surface of the mounting plate 10 facing the square groove 5 and the bottom surface of the square groove 5.

As shown in fig. 2, the guide posts 6 are distributed in a matrix in the square groove 5;

a damping spring 9 is arranged between two adjacent guide posts 6;

the height of each guide post 6 is lower than that of the square groove 5;

the height of each guide post 6 is higher than the height of the corresponding blind hole 11.

As shown in fig. 2 and 3, the bottom end of each damping spring 9 is fixed to the bottom surface of the square groove 5 by the first connecting block 7, and the top end thereof is fixed to the top wall of the corresponding blind hole 11 by the second connecting block 8.

The blind holes 11 are thus also distributed in a matrix on the bottom side of the mounting plate 10 and match each guide post 6 and damper spring 7.

After the stop block 4 and the backing plate 3 are installed, namely the mounting plate 10 is fit in the square groove 5, when the damping plate is not vibrated and impacted, the damping spring 7 is pressed by the gravity of the stop block 4 and the mounting plate 10, and the height of the damping spring 7 is higher than that of the square groove 5, so that the bottom surface of the mounting plate 10 is not in contact with the square groove 5.

After the installation of backstop 4 and backing plate 3, when not receiving the damping plate vibration and assault, square groove 5 highly is higher than the height of guide post 6, and such design makes backstop 4 when not receiving the damping plate vibration and assault, and damping spring 7 has predetermined deformation scope to after receiving the damping plate vibration and assault, can produce deformation and give mounting panel 10 and backstop 4 one with the reverse resilience force of damping plate vibration impact force, reach the effect that the damping plate vibration was assaulted.

When the stop block 4 and the backing plate 3 are installed completely and are not subjected to vibration impact of the resistance reducing plate, the height of the guide column 6 is higher than that of the corresponding blind hole 11.

If each guide post 6 is of an integral hard structure, when the vibration impact of the resistance reducing plate is received, each damping spring 7 is compressed, the mounting plate 10 moves downwards until the top wall of the blind hole 11 corresponding to the guide post 6 is contacted with the top of the guide post 6, the damping spring 7 stops compressing, and at the moment, each guide post 6 receives the vibration impact of the resistance reducing plate.

As shown in fig. 4, each guide post 6 is a multi-layered overlapping structure including: an elastic block 1 and a hard block 2;

the elastic blocks 1 and the hard blocks 2 of the same guide column 6 are alternately arranged at intervals.

In the present embodiment, the material of the elastic block 1 is the same as that of the rubber bumper 12. An elastic block 1 is arranged between two adjacent hard blocks 2 in the same guide column 6. The above construction provides a certain elasticity of the guide post 6.

When the stop block 4 and the backing plate 3 are installed and are not subjected to vibration impact of the resistance reducing plate, the height of the guide column 6 is higher than that of the corresponding blind hole 11; when the vibration impact of the resistance reducing plate is received, each damping spring 7 is compressed, the mounting plate 10 moves downwards until the top wall of the blind hole 11 corresponding to the guide post 6 is contacted with the top of the guide post 6, each guide post 6 is continuously compressed to generate the rebound force in the same direction as the rebound force of the damping spring 7, and the effect of buffering the vibration impact of the resistance reducing plate is imposed; until the bottom surface of the mounting plate 10 contacts the bottom surface of the square groove 5, at this time, the mounting plate 10 and the backing plate 3 bear the vibration impact of the damping plate.

The utility model discloses in, when backstop 4 receives the striking, guide post 6 plays the guide effect, make backstop 4 up-and-down motion, conveniently bear the impact and with the impact leading-in to backing plate 3 on, damping spring 9 plays the cushioning effect to backstop 4, prevent backstop 4 from receiving huge impact and leading to the damage, also decompose into a lot of little striking with once violent striking to a certain extent, the produced huge sound of striking has been reduced, be provided with rubber buffer 12 on backstop 4's inclined plane, convert the striking between two stereoplasm objects into and the striking between the soft rubber, the striking sound is little, the huge noise of production has been reduced, also realized the damping protection to backstop to a certain extent, prolong its life.

The utility model discloses a whole process of making an uproar that falls only improves to the backstop board, need not the cooperation support of other components such as hydraulic system, makes the process of making an uproar easily realize.

It should be understood that the specific order or hierarchy of steps in the processes disclosed is an example of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not intended to be limited to the specific order or hierarchy presented.

In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, the invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. To those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A breakaway bumper stop, comprising: a stop block (4) and a backing plate (3);

the stop block (4) is a part which is provided with an inclined surface on the stop plate and is contacted with the resistance reducing plate;

the backing plate (3) is a part of the bottom of the stop plate, which bears the stop block (4);

a rubber buffer pad (12) capable of bearing vibration impact of the resistance reducing plate is arranged on the inclined surface of the stop block (4);

and a buffer unit for buffering vibration impact of the resistance reducing plate is arranged between the stop block (4) and the backing plate (3).

2. The breakaway bumper stop of claim 1, wherein the bumper unit comprises: a mounting plate (10) and a damping module;

the mounting plate (10) is fixedly arranged at the bottom of the stop block (4);

one surface of the base plate (3) facing the bottom of the stop block (4) is provided with a square groove (5) matched with the mounting plate (10);

the mounting plate (10) is mounted in the square groove (5) and connected through the vibration reduction module.

3. The divided bumper stop according to claim 1, wherein the rubber buffer pad (12) is inserted into the inside of the stopper (4) obliquely by means of a T-shaped connecting plate (13) so that the rubber buffer pad (12) protrudes from the slope of the stopper (4).

4. The breakaway bumper of claim 2, wherein the damping module comprises: a guide post (6) and a damping spring (9);

one surface of the mounting plate (10) facing the square groove (5) is provided with a plurality of blind holes (11);

the blind holes (11) are matched with the guide columns (6) and the damping springs (9) in shape and are in one-to-one correspondence;

the guide post (6) and the damping spring (9) are fixedly arranged in the square groove (5), and when the mounting plate (10) is fit in the square groove (5), the guide post (6) and the damping spring (9) are both located in the corresponding blind hole (11).

5. The divided bumper as claimed in claim 4, characterized in that the damping springs (9) are distributed in a matrix in a square recess (5);

the bottom end of each damping spring (9) is fixed on the bottom surface of the square groove (5), and the top end of each damping spring is fixed on the top wall of the corresponding blind hole (11);

when the mounting plate (10) is fit in the square groove (5) and the stop block (4) does not bear the vibration impact of the resistance reducing plate, the surface of the mounting plate (10) facing the square groove (5) is away from the bottom surface of the square groove (5) by a preset distance.

6. The divided bumper as claimed in claim 5, characterized in that the guide studs (6) are distributed in a matrix in a square recess (5);

a damping spring (9) is arranged between two adjacent guide posts (6);

the height of each guide post (6) is lower than that of the square groove (5);

the height of each guide column (6) is higher than that of the corresponding blind hole (11).

7. The separating bumper as claimed in claim 5, characterised in that the bottom end of each damping spring (9) is fixed to the bottom surface of the square groove (5) by means of a first connecting block (7) and the top end is fixed to the top wall of the corresponding blind hole (11) by means of a second connecting block (8).

8. The breakaway bumper of claim 6 wherein each guide post (6) is a multi-layered overlapping structure comprising: the device comprises an elastic block (1) and a hard block (2);

the elastic blocks (1) and the hard blocks (2) of the same guide column (6) are alternately arranged at intervals.

9. The divided bumper stop according to claim 3, characterized in that the rubber cushion (12) is vulcanized to the end face of the T-shaped web (13);

the inclined surface of the stop block (4) is provided with a groove matched with the plane of the T-shaped connecting plate (13);

and after the T-shaped connecting plate (13) is inserted into the groove in the stop block (4), the T-shaped connecting plate is fixedly connected with the stop block (4) through a fixing bolt (14) and a locking nut (15).

10. The divided buffering stopper plate according to claim 1, wherein the surfaces of the stopper block (4), the backing plate (3) and the mounting plate (10) are covered with an anticorrosive layer for preventing seawater corrosion.