CN105841910A - Large scale solid engine drop test release device - Google Patents
Large scale solid engine drop test release device Download PDFInfo
- Publication number
- CN105841910A CN105841910A CN201610316956.1A CN201610316956A CN105841910A CN 105841910 A CN105841910 A CN 105841910A CN 201610316956 A CN201610316956 A CN 201610316956A CN 105841910 A CN105841910 A CN 105841910A
- Authority
- CN
- China
- Prior art keywords
- engine
- baffle plate
- test
- shaped hook
- bandage
- 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.)
- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a large scale solid engine drop test release device which can be applied to large scale engine drop tests. The large scale solid engine drop test release device is strong in transient response capability and good in movement synchronicity. The device comprises a test rack and a release mechanism, wherein the test rack is used for supporting the release mechanism, an engine being tested can be arranged at a specified height on the release mechanism, the release mechanism supports the engine being tested via a baffle plate in a lifting manner, the baffle plate is fixed with a binding tie, and one of the binding tie is connected via an explosive screw bolt assembly. When a downward explosion screw bolt sends an initiation signal, the explosion screw bolt is broken, the binding tie is loosened, the baffle plate is untied without constraint, and the engine being tested falls freely. The engine being tested is supported in a lifted manner, a phenomenon that the engine is damaged due to clamping force of a clamping tool or calipers can be prevented, and the structure of the device is simpler and smaller than the structure of the clamping tool or the calipers; compared with a conventional clamping force unloading mode, the device which employs the explosion screw bolt is strong in transient response capability and good in movement synchronicity, and testing precision control can be improved.
Description
Technical field
Invention relates to a kind of release device, is specifically related to a kind of fall-down test in large-sized solid electromotor fall-down test release dress
Put, belong to engine test technical field.
Background technology
In engine health Journal of Sex Research field, fall-down test be electromotor is carried out impact safety evaluatio with examine relatively effective
Research technique, electromotor is usually placed in specified altitude assignment by test method, makes electromotor to specify attitude freely falling body to fall in finger
Determine material ground.This test is the key device of test success enforcement by the release device of spreadsheet engine, it requires and release
Putting device transient response sensitive, action synchronicity is good, makes every effort to produce the least to electromotor whereabouts in unfolding mode design simultaneously
Disturbance, it is ensured that electromotor whereabouts attitude stabilization.
The existing electromotor fall-down test release commonly used fixture of device or clamp, will be lifted to after being clamped by spreadsheet engine specify
Highly, receive after releasing order, fixture or clamp unloading clamping force, disengage the engine from and freely falling body.This assay device
Be applicable to put-put fall-down test, but when engine diameters is more than 1m, quality reach several tonnes other time, fixture or clamp
Will be the most applicable, because the fixture first mated with big-block engine or clamp will be extremely heavy, the hugest clamping force pole has
May damage electromotor.
Subsized specimen fall-down test device typically employing level is lifted or hanging method, test specimen be placed on horizontal lifting apparatus or
It is lifted, receives after releasing order, lifting apparatus or suspender release test specimen, make test specimen freely fall.Owing to large-sized solid starts
The volume of machine and quality are the biggest, and higher to release consistency and stability requirement, this release device cannot meet requirement.
Summary of the invention
In view of this, the present invention provides a kind of large-sized solid electromotor fall-down test release device, it is possible to be applicable to big-block engine
Fall-down test, and transient response ability is strong, action synchronicity is good, is conducive to improving test accuracy and controls.
Described large-sized solid electromotor fall-down test release device includes: test stand and relieving mechanism；
Described test stand is used for supporting relieving mechanism, enables to be placed on relieving mechanism according to specified altitude assignment by spreadsheet engine；
Described relieving mechanism includes: baffle plate, bandage and blasting bolt assembly；One end of two described baffle plates is connected to test
On two crossbeams of frame, the other end is supported by the bandage below baffle plate, makes described baffle plate become V-structure to support by spreadsheet engine；
One end of described bandage is directly connected to wherein on a crossbeam, and the other end is connected with another root crossbeam by blasting bolt assembly.
Described blasting bolt assembly includes: upper U-shaped hook, blasting bolt and under U-shaped hook, described U-shaped hook and lower U
Connected by blasting bolt and matching nut between type hook；By bearing pin pin between described U-shaped hook and the crossbeam of test stand
Connect, under between U-shaped hook and described bandage by bearing pin pin joint.
Beneficial effect:
(1) support in the way of lifting by spreadsheet engine, it is to avoid frock is the heaviest, also avoid the clamping of fixture or clamp simultaneously
Power damage electromotor, structure is also smaller and more exquisite than fixture or clamp, simple simultaneously；
(2) using blasting bolt relative to conventional clamping force unloading manner, transient response ability is strong, and action synchronicity is good, has
It is beneficial to improve test accuracy control.
Accompanying drawing explanation
Fig. 1 is that this fall-down test discharges device overall schematic；
Fig. 2 is that electromotor is released front relieving mechanism structural representation；
Fig. 3 is that electromotor is released rear relieving mechanism structural representation；
Fig. 4 is blasting bolt component diagram.
Wherein: 1-is fallen pylon, 4-baffle plate, 5-crossbeam, 6-bandage, 7-blasting bolt by spreadsheet engine, 2-relieving mechanism, 3-
U-shaped hook under the upper U-shaped hook of assembly, 8-, 9-blasting bolt, 10-
Detailed description of the invention
Develop simultaneously embodiment below in conjunction with the accompanying drawings, describes the present invention.
The present embodiment is for the fall-down test of big-block engine (diameter 2m is about 3m, weight 12t), it is provided that a kind of new beating
Releasing and put device, this release device uses baffle plate, blasting bolt assembly and bandage to be main body, uses the mode lifted, coordinates quick-fried
Release opened by fried bolt, not only solves clamping problem, and improves controlling test precision.
This release device need to be placed on and fall pylon 3, falls pylon 3 design load 25t, and for steel construction, material is Q235B.
As it is shown in figure 1, install release structure 2 in the middle of pylon 3 on two crossbeams falling, before fall-down test, pressed by spreadsheet engine 1
Being placed on relieving mechanism 2 according to specified altitude assignment, during test, relieving mechanism 2 works, and is quickly discharged by spreadsheet engine 1, keeps
Specify attitude free-electron model to ground.
As in figure 2 it is shown, described relieving mechanism includes: baffle plate 4, bandage 6 and blasting bolt assembly 7.One end of two baffle plates 4
Being connected to fall on two crossbeams 5 of pylon 3, the other end is supported by two bandages 6 below baffle plate 4, every bandage
One end of 6 is directly connected to wherein on a crossbeam 5, and the other end is connected with another root crossbeam 5 by blasting bolt assembly 7.
Two plate washers form V-structure after installing and support by spreadsheet engine 1, it is considered to the V-structure of baffle plate, tie up for two in the present embodiment
Band design angle is and 50 ° of angles of vertical direction, and the pulling force T that the most every bandage bears is about 46kN.Choose single holding
Load power is the bandage of 16t, and bandage bearing safety coefficient is more than 3.
As shown in Figure 4, blasting bolt assembly 7 include U-shaped hook 8, blasting bolt 9 and under U-shaped hook 10, upper U
Type hook 8 and under connected by blasting bolt 9 and matching nut between U-shaped hook 10, the most described U-shaped hook 8 again with
Fall the crossbeam 5 of pylon 3 by bearing pin pin joint, under U-shaped hook 10 with bandage 6 by bearing pin pin joint.In the present embodiment quick-fried
The technical parameter of fried bolt 9: bearing capacity 18T, meets load requirements, blasting bolt synchronicity≤3ms, initial firing current 10～
15A, bridge resistance 0.5 Ω.
The operation principle of this release device is: described baffle plate 4 supports by spreadsheet engine 1 in the way of lifting, will be by spreadsheet engine 1
Lifting is still in the V-structure that two baffle plates 4 are formed；After pressing IGNITION CONTROL button, two blasting bolts 9 detonate simultaneously,
Blasting bolt 9 disconnects, upper U-shaped hook 8 and under U-shaped hook 10 separate, under U-shaped hook 10 together with the bandage 6 of pin joint
Falling under gravity, now bandage 6 is to baffle plate 4 without supporting role, and the V-structure that two baffle plates 4 are formed is in action of gravity
Lower to both sides Unscrew, make to be dropped to ground, as shown in Figure 3 by spreadsheet engine 1 level.
The actual installation of this release device and work process be:
(1) baffle plate etc. falling the crossbeam of pylon, column and release device is transported to test site；
(2) the column beam bottom falling pylon is arranged on the foundation bolt falling basis, place；
(3) welding job falling tower frame cross beam with column beam is completed；
(4) release device is installed: by two baffle plate end face outside pin joints on the crossbeam falling pylon, medial extremity crane hangs,
Make the two V-shaped structures of baffle plate；
(5) the upper U-shaped hook of two groups of blasting bolt assemblies is arranged on tower frame cross beam, under U-shaped hook connect bandage one end,
The bandage other end is connected with tower frame cross beam, makes bandage relative to V-baffle in the form of lifting, it is ensured that two bandages are parallel；
(6) crane slowly discharges baffle plate, makes baffle plate slowly drop down onto on suspender belt, and static rear two baffle plates form V-structures；
(7) use crane slowly to be winched to by spreadsheet engine fall on the V-structure of tower baffle plate, test sensing unit be installed,
Ensure the complete stress of V-structure, remove boom hoisting；
(8) personnel withdraw to safety zone, and Iganition control system starts；
(9) ignition system unlocks, and sends ignition signal, and blasting bolt blast disconnects, and upper and lower two U-shaped hooks separate, V
Type structure is opened, and tested engine free drops to ground.
In sum, these are only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.All
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the protection of the present invention
Within the scope of.
Claims (2)
1. a large-sized solid electromotor fall-down test release device, it is characterised in that including: test stand and relieving mechanism；
Described test stand is used for supporting relieving mechanism, enables to be placed on relieving mechanism according to specified altitude assignment by spreadsheet engine；
Described relieving mechanism includes: baffle plate, bandage and blasting bolt assembly；One end of two described baffle plates is connected to test
On two crossbeams of frame, the other end is supported by the bandage below baffle plate, makes described baffle plate become V-structure to support by spreadsheet engine；
One end of described bandage is directly connected to wherein on a crossbeam, and the other end is connected with another root crossbeam by blasting bolt assembly.
2. large-sized solid electromotor fall-down test release device as claimed in claim 1, it is characterised in that described blasting bolt
Assembly includes: upper U-shaped hook, blasting bolt and under U-shaped hook, described U-shaped hook and under between U-shaped hook by quick-fried
Fried bolt and matching nut connect；By bearing pin pin joint between described U-shaped hook and the crossbeam of test stand, under U-shaped hook with
By bearing pin pin joint between described bandage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316956.1A CN105841910A (en) | 2016-05-12 | 2016-05-12 | Large scale solid engine drop test release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316956.1A CN105841910A (en) | 2016-05-12 | 2016-05-12 | Large scale solid engine drop test release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105841910A true CN105841910A (en) | 2016-08-10 |
Family
ID=56591949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610316956.1A Pending CN105841910A (en) | 2016-05-12 | 2016-05-12 | Large scale solid engine drop test release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105841910A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444170A (en) * | 2020-11-19 | 2021-03-05 | 南京理工大学 | Separation device for drop test of energetic materials |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202057470U (en) * | 2011-03-21 | 2011-11-30 | 京东方科技集团股份有限公司 | Drop test device |
| CN204008048U (en) * | 2014-03-28 | 2014-12-10 | 东莞华贝电子科技有限公司 | Up-down vibration formula drop test equipment |
| CN204807293U (en) * | 2015-06-29 | 2015-11-25 | 西安航天动力测控技术研究所 | Be applied to solid rocket engine drop test's releasing mechanism |
-
2016
- 2016-05-12 CN CN201610316956.1A patent/CN105841910A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202057470U (en) * | 2011-03-21 | 2011-11-30 | 京东方科技集团股份有限公司 | Drop test device |
| CN204008048U (en) * | 2014-03-28 | 2014-12-10 | 东莞华贝电子科技有限公司 | Up-down vibration formula drop test equipment |
| CN204807293U (en) * | 2015-06-29 | 2015-11-25 | 西安航天动力测控技术研究所 | Be applied to solid rocket engine drop test's releasing mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444170A (en) * | 2020-11-19 | 2021-03-05 | 南京理工大学 | Separation device for drop test of energetic materials |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160810 |
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| WD01 | Invention patent application deemed withdrawn after publication |