Accelerometer mounting device

• US 4,823,602 A
• Filed: 06/19/1987
• Issued: 04/25/1989
• Est. Priority Date: 06/19/1987
• Status: Expired due to Fees

• Current Assignee: The Dow Chemical Company (Dow, Inc.)
• Original Assignee: The Dow Chemical Company (Dow, Inc.)
• Inventors: Christensen, Able B. Jr.
• Primary Examiner(s): Chapman, John
• Application Number:
  US07/064,262
• Time in Patent Office: 676 Days
• Field of Search: 73/654, 73/652, 73/649, 73/493, 73/517 R, 73/35, 73/431, 73/660, 73/661, 73/866.5, 310/329, 248/637, 248/DIG. 4
• US Class Current: 73/661
• CPC Class Codes: G01H 11/06 by electric means
• CPC Class Codes: G01P 1/023 for acceleration measuring devices
• CPC Class Codes: G10K 11/004 Mounting transducers, e.g. provided with mechanical moving or orienting device mountings specially adapted to a particular sound-producing device, see the preceding groups G10K1/00 - G10K9/00, e.g. G10K1/26, G10K1/28, G10K9/22; arrangements of sonic watch equipment on submarines B63G8/39; buoys B63B22/00

Abstract

A device for mounting an accelerometer thereon including a base plate with an annular portion integral with the plate on one side and an elongated portion integral with the plate on the other side. The elongated portion mounts to an apparatus such as a motor or pump and the annular portion attaches to a housing member such as a conduit for enclosing the accelerometer. The base plate contains a threaded opening for receiving a threaded stud attached to an accelerometer. The accelerometer is enclosed from the environment and protected from corrosive elements or weather conditions.

Claims

1. An adaptor for removably mounting an accelerometer thereto, said accelerometer having a first housing member , said first housing member enclosing the accelerometer, said first housing member containing a first mating surface, said adaptor comprising:

a base plate with a first and second side and an opening centrally disposed therein;

said first side adapted for contacting the first mating surface of the first housing of the accelerometer;

an annular portion sealably attached to the first side of the base plate and adapted for removably attaching a second housing member thereto for enclosing the accelerometer and the first housing member with the first mating surface;

an elongated portion sealably attached to the second side of the base plate;

said elongated portion comprising a tubular portion sealably connected at one end to the opening of the base plate and sealed at the other end, said tubular portion having threads on the outer surface thereof adapted for threadingly engaging a threaded bore disposed in an apparatus of interest to be monitored for vibrations with the accelerometer, said tubular portion having threads on the inner surface thereof adapted for threadingly receiving a threaded rod, said rod adapted for connecting the accelerometer and the first housing member with the first mating surface to the adaptor; and

a raised portion providing a mating surface for contacting the apparatus of interest and transferring vibration through the base plate wall without substantial attenuation through the adaptor walls to the first mating surface of the first housing of the accelerometer whereby vibration is sensed by the accelerometer, said raised portion annularly disposed around the base of the tubular portion and centrally disposed on the second side of the plate.

2. The adaptor of claim 1 including a flange portion annularly disposed around the perimeter of the base plate.

3. The adaptor of claim 2 wherein the flange is hexagonal in shape.

4. The adaptor of claim 1 wherein the base plate is circular in shape.

5. The adaptor of claim 1 wherein the annular portion has an outer threaded surface.

6. The adaptor of claim 5 wherein the second housing member is a conduit.

7. The adaptor of claim 1 wherein the annular portion has a hexagonal shape and the base plate is integral therewith with a hexagonal shape.

8. The adaptor of claim 7 wherein the annular portion has a threaded internal surface.

9. The adaptor of claim 8 wherein the second housing member is a conduit.

10. The adaptor of claim 1 wherein the raised portion has a diameter substantially equal to the diameter of the first mating surface of the accelerometer.

11. An assembly comprising:

(a) an accelerometer with a first housing member, said first housing member enclosing the accelerometer, said first housing containing a mating surface

(b) an adaptor for removably mounting the accelerometer and the first housing member with the first mating surface thereto, said adaptor including

(i) a base plate with a first and second side and an opening centrally disposed therein;

said first side adapted for contacting the first mating surface of the first housing of the accelerometer;

(ii) an annular portion sealably attached to the first side of the base plate and adapted for removably attaching a second housing member thereto for enclosing the accelerometer and the first housing member with the first mating surface;

(iii) an elongated portion sealably attached to the second side of the base plate;

said elongated portion comprising a tubular portion sealably connected at one end to the opening of the base plate and sealed at the other end, said tubular portion having threads on the outer surface thereof adapted for threadingly engaging a threaded bore disposed in an apparatus of interest to be monitored for vibrations with the accelerometer, said tubular portion having threads on the inner surface thereof adapted for threadingly receiving a threaded rod, said rod adapted for connecting the accelerometer and the first housing member with the first mating surface to the adaptor; and

(iv) a raised portion providing a mating surface for contacting the apparatus of interest and transferring vibration through the base plate wall without substantial attenuation through the adaptor walls to the first mating surface of the first housing of the accelerometer whereby vibration is sensed by the accelerometer, said raised portion annularly disposed around the base of the tubular portion and centrally disposed on the second side of the plate; and

(c) a second housing member releasably attached to the adaptor, said second housing member and adaptor in combination adapted for enclosing said accelerometer and the first housing member with the first mating surface.

12. The assembly of claim 11 wherein the second housing member is a conduit.

13. The assembly of claim 11 wherein the raised portion has a diameter substantially equal to the diameter of the first mating surface of the accelerometer.

14. In an accelerometer for monitoring vibration of an apparatus of interest, the accelerometer having a first housing member, said first housing member enclosing the accelerometer, said first housing member containing a first mating surface, the improvement which comprises a second housing member with a second mating surface for enclosing the accelerometer and the first housing member, said second housing member comprising:

(a) an adaptor for removably mounting an accelerometer thereto, said adaptor including

a base plate with a first and second side and an opening centrally disposed therein;

said first side adapted for contacting the first mating surface of the first housing of the accelerometer;

an annular portion sealably attached to the first side of the base plate and adapted for removably attaching a housing means thereto for enclosing the accelerometer and the first housing member with the first mating surface;

an elongated portion sealably attached to the second side of the base plate;

said elongated portion comprising a tubular portion sealably connected at one end to the opening of the base plate and sealed at the other end, said tubular portion having threads on the outer surface thereof adapted for threadingly engaging a threaded bore disposed in an apparatus of interest to be monitored for vibrations with the accelerometer, said tubular portion having threads on the inner surface thereof adapted for threadingly receiving a threaded rod, said rod adapted for connecting the accelerometer and the first housing member with the first mating surface to the adaptor;

a raised portion providing a second mating surface for contacting the apparatus of interest and transferring vibration through the base plate wall without substantial attenuation through the adaptor walls to the first mating surface of the first housing of the accelerometer whereby vibration is sensed by the accelerometer, said raised portion annularly disposed around the base of the tubular portion and centrally disposed on the second side of the plate; and

(b) a housing means releasably attached to the adaptor, whereby said housing means and adaptor in combination provides the second housing for said accelerometer.

15. The accelerometer of claim 14 wherein the raised portion has a diameter substantially equal to the diameter of the first mating surface of the accelerometer.