Spring compression device

Patent metadata

Field	Value
Publication number	US-2018003162-A1
Application number	US-201715638925-A
Country	US
Kind code	A1
Filing date	Jun 30, 2017
Priority date	Jul 1, 2016
Publication date	Jan 4, 2018
Grant date	—

Abstract

A spring compression device comprises a spring sleeve configured to receive a spring; a spring adjustment member provided on and engaged with the spring sleeve and configured to abut a spring mounted on the spring sleeve, wherein the spring sleeve and spring adjustment member define an operating length (L) of the spring compression device, and the spring adjustment member is configured to be moved relative to the spring sleeve to adjust the operating length of the spring compression device; and at least one blocking component for blocking movement between the spring sleeve and the spring adjustment member.

First claim

What is claimed is:

1 . A spring compression device, comprising:
a spring sleeve configured to receive a spring; a spring adjustment member provided on and engaged with the spring sleeve and configured to abut a spring mounted on the spring sleeve, wherein: the spring sleeve and spring adjustment member define an operating length (L) of the spring compression device, and the spring adjustment member is configured to be moved relative to the spring sleeve to adjust the operating length of the spring compression device; and at least one blocking component for blocking movement between the spring sleeve and the spring adjustment member.

2 . The spring compression device according to claim 1 , wherein the spring sleeve and spring adjustment member are engaged with a threaded connection.

3 . The spring compression device according to claim 1 , wherein an exterior surface of the spring sleeve and an interior surface of the spring adjustment member each have at least one recess which align to form a hole for receiving the blocking component.

4 . The spring compression device according to claim 3 , wherein the hole extends in a direction parallel to a longitudinal axis (R) of the spring sleeve.

5 . The spring compression device according to claim 3 , wherein the blocking component is press-fitted into the hole.

6 . The spring compression device according to claim 1 , wherein the blocking component comprises a pin.

7 . The spring compression device according to claim 1 , wherein the spring adjustment member further comprises a grip feature configured to engage with a tool for adjusting the position of the spring adjustment member along a longitudinal axis (R) of the spring sleeve.

8 . The spring compression device according to claim 1 , wherein the spring adjustment member has a radially extending flange to provide a stop for a spring mounted on the spring sleeve.

9 . The spring compression device of claim 1 , in combination with a ram air turbine.

10 . A spring compression assembly, comprising:
a spring compression device comprising: a spring sleeve configured to receive a spring; a spring adjustment member provided on and engaged with the spring sleeve and configured to abut a spring mounted on the spring sleeve, wherein: the spring sleeve and spring adjustment member define an operating length (L) of the spring compression device, and the spring adjustment member is configured to be moved relative to the spring sleeve to adjust the operating length of the spring compression device; and at least one blocking component for blocking movement between the spring sleeve and the spring adjustment member; and a first spring mounted on the spring sleeve and abutting the spring adjustment member.

11 . The spring compression assembly according to claim 10 , further comprising a second spring housed inside the spring sleeve.

12 . The spring compression assembly of claim 9 , in combination with a ram air turbine.

13 . A method for adjusting the compression of a spring, comprising:
providing a spring adjustment member on a spring sleeve, wherein the spring sleeve and spring adjustment member define an operating length (L) of a spring compression device; adjusting the operating length of the spring compression device with the spring adjustment member by moving the spring adjustment member with respect to the spring sleeve; and blocking movement between the spring sleeve and the spring adjustment member with a blocking component.

14 . The method according to claim 13 , wherein the spring sleeve and spring adjustment member are engaged with a threaded connection, and the step of adjusting the operating length (L) of the spring compression device with the spring adjustment member comprises screwing the spring adjustment member along the spring sleeve.

15 . The method according to claim 13 , wherein the spring adjustment member further comprises a grip feature (configured to engage with a tool, and the step of adjusting the operating length (L) of the spring compression device with the spring adjustment member comprises engaging the grip feature with a tool to adjust the position of the spring adjustment member along a longitudinal axis (R) of the spring sleeve.

16 . The method according to claim 13 , wherein an exterior surface of the spring sleeve and an interior surface of the spring adjustment member each have at least one recess which align to form a hole for receiving the blocking component, and the step of blocking movement between the spring sleeve and the spring adjustment member with the blocking component comprises disposing the blocking component in the hole.

17 . The method according to claim 16 , wherein the blocking component is introduced into the hole in a direction parallel to a longitudinal axis (R) of the spring sleeve.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Kielczykowski Przemyslaw
• Banach Pawel

Classifications

• B64D41/007

  Ram air turbines · CPC title

• F01D25/28

  Supporting or mounting arrangements, e.g. for turbine casing · CPC title

• F03G1/06

  Other parts or details · CPC title

• F16F1/12

  Attachments or mountings {(F16F1/041, F16F13/02 take precedence; of combinations of vibration damper and mechanical spring for vehicle suspension units B60G15/02)} · CPC title

• F16F3/04

  composed only of wound springs · CPC title