CN205175435U - Novel rocket sledge damping device - Google Patents
Novel rocket sledge damping device Download PDFInfo
- Publication number
- CN205175435U CN205175435U CN201521036251.1U CN201521036251U CN205175435U CN 205175435 U CN205175435 U CN 205175435U CN 201521036251 U CN201521036251 U CN 201521036251U CN 205175435 U CN205175435 U CN 205175435U
- Authority
- CN
- China
- Prior art keywords
- cover body
- cushion blocking
- axis
- lock nut
- rocket sledge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vibration Dampers (AREA)
Abstract
The utility model relates to a novel rocket sledge damping device, including axis, the cover body and regulation lock nut, the axis is the step shaft, the cover body is in with regulation lock nut suit the axis outside, the preceding terminal surface of the cover body with damping pad before setting up between the centraxonial cascaded surface, it sets up interior damping pad to cover between inside terminal surface physically and the centraxonial outer wall, set up back damping pad between the cover body and the regulation lock nut, set up preceding retaining ring between the preceding damping pad and the cover body, set up the back retaining ring between the back damping pad and the cover body, set up the interval retaining ring between back damping pad and the regulation lock nut, the inside of the cover body is equipped with the dog of the interior damping pad displacement of restriction. The utility model discloses a three -dimensional damping difficult problem under the high -speed rocket sledge test conditions, convenient operation have been solved to the type. Consequently, the practicality is better, and application scope is wide, and broad prospect is used widely to the technique, and will bring into play the important function future in rocket sledge process of the test.
Description
Technical field
The utility model relates to rocket sledge field, more particularly, relates to a kind of new rocket sledge vibration absorber.
Background technology
When high-speed rocket sledge is tested, due to the impact of the external conditions such as trajectory accuracy, aerodynamic drag, reflected shock wave, rocket sledge skid body vibration value is larger.The vibration environment of contrast aircraft, guided missile in-flight test, vibration environment during Rocket sled test is badly many, is therefore warranty test part experimental safe, needs effectively to reduce testpieces oscillation power spectral density by vibration absorber.Domestic at present also do not have ripe vibration absorber can reduce Rocket sled test part three-way vibration overload simultaneously.
Summary of the invention
The technical problems to be solved in the utility model is, provides a kind of new rocket sledge vibration absorber that effectively can reduce testpieces three-way vibration power spectrum density in high-speed rocket sledge process of the test.
The utility model solves the technical scheme that its technical matters adopts: construct a kind of new rocket sledge vibration absorber, comprise axis, cover body and adjusting lock nut, described axis is multidiameter, and described cover body and adjusting lock nut are sleeved on outside described axis; Between the front end face of described cover body and the cascaded surface of described axis, front cushion blocking is set, between the internal end surface of described cover body and the outer wall of axis, interior cushion blocking is set, between described cover body and adjusting lock nut, rear cushion blocking is set, between described front cushion blocking and cover body, front back-up ring is set, between described rear cushion blocking and cover body, rear back-up ring is set, arrange spacer collar between described rear cushion blocking and adjusting lock nut, the inside of described cover body is provided with the block of cushion blocking displacement in restriction.
In such scheme, described block and cover body are bolted.
In such scheme, described front cushion blocking, interior cushion blocking and rear cushion blocking are made up of polyurethane material.
In such scheme, the rear end of described axis arranges installing plate.
Implement new rocket sledge vibration absorber of the present utility model, there is following beneficial effect:
Installation of New Type vibration absorber on rocket sledge, testpieces is arranged on vibration absorber front end.Annular cushion blocking work in process of the test, reduces the three-way vibration overload of testpieces.Meanwhile, be arranged on block between cushion blocking also can limit cushion blocking movement when transmitting course power, prevent cushion blocking along play before and after course.The upper lower cover be arranged on axle prevents the side direction of cushion blocking and vertical movement.The utility model type solves a three-dimensional vibration damping difficult problem under high-speed rocket sledge test condition, easy to operate.Therefore practicality is better, and applied widely, Technique Popularizing prospect of the application is wide, and future will play a significant role in Rocket sled test process.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the front elevation of the utility model new rocket sledge vibration absorber;
Fig. 2 is the side view of the utility model new rocket sledge vibration absorber;
Fig. 3 is the vertical view of the utility model new rocket sledge vibration absorber.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Figure 1-Figure 3, new rocket sledge vibration absorber of the present utility model comprises axis 1, cover body 4 and adjusting lock nut 8, and axis 1 is multidiameter.
The utility model new rocket sledge vibration absorber bottom is arranged on rocket sledge by ring flange 11, and the mode that front deck section is threaded connection is arranged on the front end of axis 1, and rear deck section and installing plate 10 are bolted.Installing plate 10 is connected with axle by bolt, and is arranged on the rearmost end of axis 1, and its effect is conveniently connected with rear deck.Cushion blocking 2 adopts polyurethane material, goes out material properties by every experiment test, and goes out the damping property of polyurethane material through computational analysis.Utilize the polyurethane damping material of different damping characteristic, effectively can reduce testpieces three-way vibration power spectrum density in high-speed rocket sledge process of the test.
Install 6 interior cushion blockings 12 in the middle of axis 1, cushion blocking 13 after 2 front cushion blockings 2 and 2 is installed at two ends, and the effect of cushion blocking reduces the three-way vibration overload produced in process of the test.Front cushion blocking 2, interior cushion blocking 12 and rear cushion blocking 13 are arranged on axis 1 respectively with form of annular rings.Front cushion blocking 2 on axis 1 is installed together with front back-up ring 3, and the function of front back-up ring 3 is reserved front cushion blocking 2 side direction and vertical gap, reserves deformation space to front cushion blocking 2.After axis 1, cushion blocking 13 and rear back-up ring 7, spacer collar 8 are installed.Axis 1 adopts engagement thread to be connected with tight split nut 9.Determine torque wrench and regulate tight split nut 9, be applied to the pretightning force that rear cushion blocking 13 is certain.By analysis, the mechanical property of cushion blocking 13 just can better play effect under the condition that there is certain pretightning force.The effect of spacer collar 8 avoids rear cushion blocking 13 directly to contact with tight split nut 9, and after when preventing tight split nut 9 from rotating, cushion blocking 13 rotates together, and increases friction force.
4 blocks 6 are bolted with upper lower cover 4, and upper lower cover 4 encircling type is arranged on axis 1, and is bolted on together.5mm gap is reserved along course between block 6 and cushion blocking 2.Upper lower cover 4 prevents cushion blocking 2 from having larger displacement play.
It is outside that cover plate 5 is arranged on lower cover 4, and cover plate 5, in process of the test rectification, reduces aerodynamic drag.
The utility model type solves a three-dimensional vibration damping difficult problem under high-speed rocket sledge test condition.Vibration absorber is arranged on rocket sledge by the utility model, and cushion blocking have employed polyurethane material, is convenient to processing, cost is lower, reliability is higher and damping property is analyzed as calculated, has good effect.Because the polyurethane material chosen has the scope of application widely, therefore have in Rocket sled test and there is better prospect of the application.Damping device structure is functional meets testing requirements, easy to operate.Therefore practicality is better, and applied widely, therefore Technique Popularizing prospect of the application is wide, and future will play a significant role in Rocket sled test process.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, also can make a lot of form, these all belong within protection of the present utility model.
Claims (4)
1. a new rocket sledge vibration absorber, is characterized in that, comprises axis, cover body and adjusting lock nut, and described axis is multidiameter, and described cover body and adjusting lock nut are sleeved on outside described axis; Between the front end face of described cover body and the cascaded surface of described axis, front cushion blocking is set, between the internal end surface of described cover body and the outer wall of axis, interior cushion blocking is set, between described cover body and adjusting lock nut, rear cushion blocking is set, between described front cushion blocking and cover body, front back-up ring is set, between described rear cushion blocking and cover body, rear back-up ring is set, arrange spacer collar between described rear cushion blocking and adjusting lock nut, the inside of described cover body is provided with the block of cushion blocking displacement in restriction.
2. new rocket sledge vibration absorber according to claim 1, it is characterized in that, described block and cover body are bolted.
3. new rocket sledge vibration absorber according to claim 1, is characterized in that, described front cushion blocking, interior cushion blocking and rear cushion blocking are made up of polyurethane material.
4. new rocket sledge vibration absorber according to claim 1, it is characterized in that, the rear end of described axis arranges installing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521036251.1U CN205175435U (en) | 2015-12-12 | 2015-12-12 | Novel rocket sledge damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521036251.1U CN205175435U (en) | 2015-12-12 | 2015-12-12 | Novel rocket sledge damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205175435U true CN205175435U (en) | 2016-04-20 |
Family
ID=55739417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521036251.1U Expired - Fee Related CN205175435U (en) | 2015-12-12 | 2015-12-12 | Novel rocket sledge damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205175435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424071A (en) * | 2015-12-12 | 2016-03-23 | 航宇救生装备有限公司 | Novel rocket sled damping device |
-
2015
- 2015-12-12 CN CN201521036251.1U patent/CN205175435U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424071A (en) * | 2015-12-12 | 2016-03-23 | 航宇救生装备有限公司 | Novel rocket sled damping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20191212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |