1
Attention: The information and recommendations described in this brochure cannot possibly cover every application of the products or variation of conditions under which the products are used. The recommendations here in are based on the manufacturer’s experience, research and testing. They are believed to be accurate, but no warranties are made, express or implied. In addition, the specifications contained herein are all nominal which represent our current production. The products described may be subject to change. Please feel free to contact Ensign-Bickford Aerospace & Defense Company for verification. No Warranties or Liabilities: THE PRODUCTS DESCRIBED HEREIN are sold “AS IS” and without any warranty or guaranty, express, or implied, arising by law or otherwise including without limitation any warranty of merchantability or fitness for a particular purpose. Buyer and user agree further to release and discharge seller from any and all liabilities whatsoever arising out of the purchase or use of any product described herein whether or not such liability is occasioned by seller’s negligence or based upon strict products liability or upon principles of indemnity or contribution. Content©2021 Ensign-Bickford Aerospace & Defense Company, Simsbury, CT 06070, U.S.A. ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY 640 HOPMEADOW STREET, P.O. BOX 429, SIMSBURY, CT 06070, USA www.EBAD.com Mission Success Ensign-Bickford Aerospace & Defense Company (EBAD) is dedicated to supporting our customers in the aerospace and defense industry through on-time delivery of innovative products that exceed expectations and assure mission success. www.EBAD.com TiNi Ejector Release Mechanisms Our TiNi Ejector Release Mechanisms are utilized in satellite applications to provide a simple and effective non-pyro field resettable separation system with allowances for up to 5º angular misalignment during deployment. Ranging in size from 250lbF to 4000lbF of preload, the ejectors offer a versatile solution from satellite solar array deployments, satellite dispensing, off angle optical cover and antenna releases. Principle of Operation The ejector is a reliable fast operating device that ultilzes a shape memory alloy “SMA” wire to release a latch to allow for the internal compression springs to retract an interal pin and allow for the external ball locks to disengage and release the coupler. In the fully reset mode, the internal circuit is closed. When sufficient power is applied, the current raises the temperature of the SMA wire and subsequently contracts at its transition temperature. This allows internal ball locks to release and internal drive springs to retract a pin into the body of the device. Once the pin drops, external ball locks are disengaged alowing the external springs to “kick off’ the coupler. A spherical seat is incorporated to allow for up to 5º angular misalignment during deployment. After acutation, the circuit is open allowing no power to continue to heat the SMA wire and provides the user with positive feedback that the device has actuated. The device is reset with a custom tool that aligns the coupler back onto the post and pulls the internal pins to reengage the external ball locks. Applications Qualified in 2001, EBAD’s TiNi ejectors have extensive heritage in space applictions. Such applications include solar array and instrument deployment, satellite dispensing, hinged cover release and other space applications where an off angle deployment is desired. TiNi Ejector Release Mechanisms (ERM) TiNi ERM Ejector Release Mechanisms Family Technical Specifications Key Features • Nonpyrotechnic • Easy to field reset and simple to Use • Minimum 50 cycles • Redundant firing circuit • Maximum reliability thru design simplicity • Flight pedigree and testability Alternative applications include parachute releases, underwater acutations and modifications into other mechanisms such as gas cylinder penetrators. Construction As a derivative of the EBAD TiNi Pin Pullers, our Ejector Release Mechanisms utilize a shape memory alloy “SMA” wire, in which the wire is threaded through a latch and attached to the electrical contacts. The latch retains an internal ball bearings that keeps the compressed drive springs in place before actuation. Another smaller internal reset spring is installed to assist in the reset process. Additional ball locks are incorporated between the output pin and the coupler. The kickoff spring assists in keeping the external ball locks in place after actuation. The ejector is fully vented and typically the enclosure is made with aluminum alloy. The coupler is custom 455SS with a tiolon finish. Alternative voltages utilize an internal resistor to protect the SMA wire from overheating. Ejector Family E250 E500 E1000 E2000 E4000 Max Release Load 250lbF (1112N) 500lbF (2224N) 1000lbF (4448N) 2000lbF (8900N) 4000lbF (17,800N) Proof Load 350lbF (1557N) 700lbF (3114N) 1400lbF (6230N) 2500lbF (11,125N) 5000lbF (22,400N) Max Torque 92in-oz 14in-lb 32in-lb 70in-lb 250in-lb Coupler Kick Off-Force 1.5lbF 6.5lbF 9.5lbF 8.5lbF 18lbF Max Misalignment Capability +/- 5º engagement and deployment Mass 2.7 oz (75g) 3.6 oz (100g) 5.6 oz (160g) 10.6oz (300g) 18.7 oz (530g) Operating Current .75 to 2.5A 1.25 to 4A 2.25A to 6.5A Resistance 3.3±.3 Ω 2.2±.3 Ω 1.6±.3 Ω 2.2±.3 Ω 2.5±.3 Ω Function Time @ 23°C 100ms max @ 1.25A 100ms max @ 2.5A 100ms max @ 4A Cycle Life (min) 50 Operating Temp -65ºC + 70ºC Height (without coupler) 1.375" 1.625" 2.00" 2.65" 3.3" Height (with coupler) 2.195" 2.475" 2.95" 3.93" 4.8" Max Diameter (with flange) 1.85" diam 2.1” diam 2.35" diam 3.00" diam 3.825" diam Std Coupler Engagement Size .138"-32 .164”-32 .190"-32 .250"-28 .375"-24 Contact EBAD about alternative voltages/resistance ,mounting flanges and coupler types Before deployment After deployment TiNi Ejector Release Mechanisms (ERM) RELEASED VIEW 1.450 .62 .477 .62 + X + Y .190-32UNF-3B 11 (COUPLER HELICOIL THREAD) MAX THREAD ENGAGEMENT: .300 4X (148°) 2X (R.225) .375 HEX 2X .196±.002 THRU 1.900 2.350 18 MIN + Z ( .344) (GROMMET) SOCKET FEATURE PIVOT POINT 1 RESET VIEW 2 .800 2.000 .530 2X .225 .600 .204 .95 TiNi Ejector Release Mechanism E250 Mechanical Interface Drawing TiNi Ejector Release Mechanisms (ERM) Family of products Cleared for Open Publication by the Defense Office of Prepublication and Security Review, Department of Defense 12/08/2021 22-S-0488 Cleared for Open Publication by the Defense Office of Prepublication and Security Review, Department of Defense 12/08/2021 22-S-0488

TiNi Ejector Release Mechanisms (ERM) TiNi Ejector Release

  • Upload
    others

  • View
    56

  • Download
    0

Embed Size (px)

Citation preview

Page 1: TiNi Ejector Release Mechanisms (ERM) TiNi Ejector Release

Attention: The information and recommendations described in this brochure cannot possibly cover every application of the products or variation of conditions under which the products are used. The recommendations here in are based on the manufacturer’s experience, research and testing. They are believed to be accurate, but no warranties are made, express or implied. In addition, the specifications

contained herein are all nominal which represent our current production. The products described may be subject to change. Please feel free to contact Ensign-Bickford Aerospace & Defense Company for verification. No Warranties or Liabilities: THE PRODUCTS DESCRIBED HEREIN are sold “AS IS” and without any warranty or guaranty, express, or implied, arising by law or otherwise including without limitation any warranty of merchantability or fitness for a particular purpose. Buyer and user agree further to release and discharge seller from any and all liabilities whatsoever arising out of the purchase or use of any product described herein whether or not such liability is occasioned by seller’s negligence or based upon strict products liability or upon principles of indemnity or contribution. Content©2021 Ensign-Bickford Aerospace & Defense Company, Simsbury, CT 06070, U.S.A.

ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY640 HOPMEADOW STREET, P.O. BOX 429, SIMSBURY, CT 06070, USA www.EBAD.com

Mission Success

Ensign-Bickford Aerospace & Defense Company (EBAD) is dedicated to supporting our customers in the aerospace and defense industry through on-time delivery of innovative products that exceed expectations and assure mission success.

www.EBAD.com

TiNi™ Ejector Release Mechanisms

Our TiNi™ Ejector Release Mechanisms are utilized in satellite applications to provide a simple and effective non-pyro field resettable separation system with allowances for up to 5º angular misalignment during deployment. Ranging in size from 250lbF to 4000lbF of preload, the ejectors offer a versatile solution from satellite solar array deployments, satellite dispensing, off angle optical cover and antenna releases.

Principle of Operation

The ejector is a reliable fast operating device that ultilzes a shape memory alloy “SMA” wire to release a latch to allow for the internal compression springs to retract an interal pin and allow for the external ball locks to disengage and release the coupler.

In the fully reset mode, the internal circuit is closed. When sufficient power is applied, the current raises the temperature of the SMA wire and subsequently contracts at its transition temperature. This allows internal ball locks to release and internal drive springs to retract a pin into the body of the device.

Once the pin drops, external ball locks are disengaged alowing the external springs to “kick off’ the coupler. A spherical seat is incorporated to allow for up to 5º angular misalignment during deployment. After acutation, the circuit is open allowing no power to continue to heat the SMA wire and provides the user with positive feedback that the device has actuated.

The device is reset with a custom tool that aligns the coupler back onto the post and pulls the internal pins to reengage the external ball locks.

Applications

Qualified in 2001, EBAD’s TiNi ejectors have extensive heritage in space applictions. Such applications include solar array and instrument deployment, satellite dispensing, hinged cover release and other space applications where an off angle deployment is desired.

TiNi™ Ejector Release Mechanisms (ERM)

TiNi™ ERM Ejector Release Mechanisms Family Technical Specifications

Key Features

• Nonpyrotechnic• Easy to field reset and simple to Use• Minimum 50 cycles• Redundant firing circuit• Maximum reliability thru design simplicity• Flight pedigree and testability

Alternative applications include parachute releases, underwater acutations and modifications into other mechanisms such as gas cylinder penetrators.

Construction

As a derivative of the EBAD TiNi™ Pin Pullers, our Ejector Release Mechanisms utilize a shape memory alloy “SMA” wire, in which the wire is threaded through a latch and attached to the electrical contacts. The latch retains an internal ball bearings that keeps the compressed drive springs in place before actuation. Another smaller internal reset spring is installed to assist in the reset process.

Additional ball locks are incorporated between the output pin and the coupler. The kickoff spring assists in keeping the external ball locks in place after actuation.

The ejector is fully vented and typically the enclosure is made with aluminum alloy. The coupler is custom 455SS with a tiolon finish.

Alternative voltages utilize an internal resistor to protect the SMA wire from overheating.

Ejector Family E250 E500 E1000 E2000 E4000Max Release Load 250lbF (1112N) 500lbF (2224N) 1000lbF (4448N) 2000lbF (8900N) 4000lbF (17,800N)

Proof Load 350lbF (1557N) 700lbF (3114N) 1400lbF (6230N) 2500lbF (11,125N) 5000lbF (22,400N)Max Torque 92in-oz 14in-lb 32in-lb 70in-lb 250in-lbCoupler Kick Off-Force 1.5lbF 6.5lbF 9.5lbF 8.5lbF 18lbFMax Misalignment Capability +/- 5º engagement and deploymentMass 2.7 oz (75g) 3.6 oz (100g) 5.6 oz (160g) 10.6oz (300g) 18.7 oz (530g)

Operating Current .75 to 2.5A 1.25 to 4A 2.25A to 6.5A

Resistance 3.3±.3 Ω 2.2±.3 Ω 1.6±.3 Ω 2.2±.3 Ω 2.5±.3 Ω

Function Time @ 23°C 100ms max @ 1.25A 100ms max @ 2.5A 100ms max @ 4A

Cycle Life (min) 50

Operating Temp -65ºC + 70ºC

Height (without coupler) 1.375" 1.625" 2.00" 2.65" 3.3"

Height (with coupler) 2.195" 2.475" 2.95" 3.93" 4.8"

Max Diameter (with flange) 1.85" diam 2.1” diam 2.35" diam 3.00" diam 3.825" diam

Std Coupler Engagement Size .138"-32 .164”-32 .190"-32 .250"-28 .375"-24

Contact EBAD about alternative voltages/resistance ,mounting flanges and coupler types

Before deployment After deployment

TiNi™ Ejector Release Mechanisms (ERM)

+ X

+ Y

+ Z

REVISION HISTORY

ZONE REV DESCRIPTION DATE APPROVED

E REDRAWN WITH CHANGESINC CR 30399 MXD 11-21-2019 JAS

.190-32UNF-3B 11(COUPLER HELICOIL THREAD)MAX THREAD ENGAGEMENT: .300

4X (148°)

2X (R.225)

.375 HEX

2X .196±.002 THRU

1.900

2.350

18 MIN

D

REVSHDWG NO.

96336REV

CHECKER

DRAWN BY

SHEETSCALE

DWG NO.CAGE CODESIZE

2

E

2 22:1 OFGMCDANIELJAS

EN82179

1345678

D

C

B

8 7 6 5 4 3 2 1

A

B

C

D

A

N82179

INFORMATION COPYWILL NOT BE UPDATED

PRELIMINARYUNRELEASED DWG

FOR QUOTATION ONLY

APPROVED

CHECKED

INC BY

V3.1

INFORMATION SUBJECT TO EXPORT CONTROL LAWS

THIS DOCUMENT IS THE PROPERTY OF ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY AND SHALL NOT BE DISCLOSED, REPRODUCED IN WHOLE OR IN PART, OR USED FOR ANYONE OTHER THAN ENSIGN - BICKFORD AEROSPACE & DEFENSE COMPANY, WITHOUT ITS PRIOR WRITTEN CONSENT. THIS RESTRICTION DOES NOT APPLY TO OR PURPORT TO LIMIT THE RIGHT TO USE INFORMATION OBTAINED LAWFULLY FROM SOURCES OTHER THAN ENSIGN - BICKFORD AEROSPACE & DEFENSE COMPANY.

THESE COMMODITIES AND TECHNOLOGY ARE CONTROLLED IN ACCORDANCE WITH THE UNITED STATES EXPORT ADMINISTRATION REGULATIONS (15CFR730-744). DIVERSION CONTRARY TO U.S. LAW IS PROHIBITED.

Ensign-BickfordAerospace & Defense

TM

( .344)(GROMMET)

SOCKET FEATUREPIVOT POINT

1

RESET VIEW

2

.800

2.000

.530

2X .225

.600

.204

.95

RELEASED VIEW 1.450

.62 .477

.62

+ X

+ Y

+ Z

REVISION HISTORY

ZONE REV DESCRIPTION DATE APPROVED

E REDRAWN WITH CHANGESINC CR 30399 MXD 11-21-2019 JAS

.190-32UNF-3B 11(COUPLER HELICOIL THREAD)MAX THREAD ENGAGEMENT: .300

4X (148°)

2X (R.225)

.375 HEX

2X .196±.002 THRU

1.900

2.350

18 MIN

D

REVSHDWG NO.

96336REV

CHECKER

DRAWN BY

SHEETSCALE

DWG NO.CAGE CODESIZE

2

E

2 22:1 OFGMCDANIELJAS

EN82179

1345678

D

C

B

8 7 6 5 4 3 2 1

A

B

C

D

A

N82179

INFORMATION COPYWILL NOT BE UPDATED

PRELIMINARYUNRELEASED DWG

FOR QUOTATION ONLY

APPROVED

CHECKED

INC BY

V3.1

INFORMATION SUBJECT TO EXPORT CONTROL LAWS

THIS DOCUMENT IS THE PROPERTY OF ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY AND SHALL NOT BE DISCLOSED, REPRODUCED IN WHOLE OR IN PART, OR USED FOR ANYONE OTHER THAN ENSIGN - BICKFORD AEROSPACE & DEFENSE COMPANY, WITHOUT ITS PRIOR WRITTEN CONSENT. THIS RESTRICTION DOES NOT APPLY TO OR PURPORT TO LIMIT THE RIGHT TO USE INFORMATION OBTAINED LAWFULLY FROM SOURCES OTHER THAN ENSIGN - BICKFORD AEROSPACE & DEFENSE COMPANY.

THESE COMMODITIES AND TECHNOLOGY ARE CONTROLLED IN ACCORDANCE WITH THE UNITED STATES EXPORT ADMINISTRATION REGULATIONS (15CFR730-744). DIVERSION CONTRARY TO U.S. LAW IS PROHIBITED.

Ensign-BickfordAerospace & Defense

TM

( .344)(GROMMET)

SOCKET FEATUREPIVOT POINT

1

RESET VIEW

2

.800

2.000

.530

2X .225

.600

.204

.95

RELEASED VIEW 1.450

.62 .477

.62

+ X

+ Y

+ Z

REVISION HISTORY

ZONE REV DESCRIPTION DATE APPROVED

E REDRAWN WITH CHANGESINC CR 30399 MXD 11-21-2019 JAS

.190-32UNF-3B 11(COUPLER HELICOIL THREAD)MAX THREAD ENGAGEMENT: .300

4X (148°)

2X (R.225)

.375 HEX

2X .196±.002 THRU

1.900

2.350

18 MIN

D

REVSHDWG NO.

96336REV

CHECKER

DRAWN BY

SHEETSCALE

DWG NO.CAGE CODESIZE

2

E

2 22:1 OFGMCDANIELJAS

EN82179

1345678

D

C

B

8 7 6 5 4 3 2 1

A

B

C

D

A

N82179

INFORMATION COPYWILL NOT BE UPDATED

PRELIMINARYUNRELEASED DWG

FOR QUOTATION ONLY

APPROVED

CHECKED

INC BY

V3.1

INFORMATION SUBJECT TO EXPORT CONTROL LAWS

THIS DOCUMENT IS THE PROPERTY OF ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY AND SHALL NOT BE DISCLOSED, REPRODUCED IN WHOLE OR IN PART, OR USED FOR ANYONE OTHER THAN ENSIGN - BICKFORD AEROSPACE & DEFENSE COMPANY, WITHOUT ITS PRIOR WRITTEN CONSENT. THIS RESTRICTION DOES NOT APPLY TO OR PURPORT TO LIMIT THE RIGHT TO USE INFORMATION OBTAINED LAWFULLY FROM SOURCES OTHER THAN ENSIGN - BICKFORD AEROSPACE & DEFENSE COMPANY.

THESE COMMODITIES AND TECHNOLOGY ARE CONTROLLED IN ACCORDANCE WITH THE UNITED STATES EXPORT ADMINISTRATION REGULATIONS (15CFR730-744). DIVERSION CONTRARY TO U.S. LAW IS PROHIBITED.

Ensign-BickfordAerospace & Defense

TM

( .344)(GROMMET)

SOCKET FEATUREPIVOT POINT

1

RESET VIEW

2

.800

2.000

.530

2X .225

.600

.204

.95

RELEASED VIEW 1.450

.62 .477

.62

TiNi™ Ejector Release Mechanism E250 Mechanical Interface Drawing

TiNi™ Ejector Release Mechanisms (ERM) Family of products

Cleared for Open Publication by the Defense Office of Prepublication and Security Review, Department of Defense 12/08/2021 22-S-0488 Cleared for Open Publication by the Defense Office of Prepublication and Security Review, Department of Defense 12/08/2021 22-S-0488