Position sensor mounts for a diagnostic system for fluid control valves

• US 10,458,820 B2
• Filed: 06/09/2016
• Issued: 10/29/2019
• Est. Priority Date: 09/18/2015
• Status: Active Grant

• Current Assignee: Fisher Controls International LLC (Emerson Electric Company)
• Original Assignee: Fisher Controls International LLC (Emerson Electric Company)
• Inventors: Nelson, Philip D., Imsland, Thomas A.
• Primary Examiner(s): Hopkins, Brandi N
• Application Number:
  US15/178,060
• Publication Number:
  US 20170082467A1
• Time in Patent Office: 1,237 Days
• CPC Class Codes: F16K 37/0041 for measuring valve parameters F16K37/0033 takes precedence
• CPC Class Codes: F16K 37/0083 by measuring valve parameters
• CPC Class Codes: F16M 11/28 Undercarriages for supports with one single telescoping pillar
• CPC Class Codes: F16M 13/022 repositionable
• CPC Class Codes: G01D 11/245 Housings for sensors

Abstract

Position sensor mounts for mounting one or more position sensors to one or more various fluid control valves and/or actuators for such valves. One such position sensor mount includes a base, a toggle clamp fixedly attached to the base, and an engagement assembly. The base has a mount for coupling to a position sensor and a first clamp jaw. The toggle clamp has a second clamp jaw that opposes the first clamp jaw. The toggle clamp automatically adjusts to provide a fixed clamping force at different distances between the first clamp jaw and the second clamp jaw. The engagment assembly is carried by the second jaw and includes at least a first clamp pad having a distal end that directly faces the first clamp jaw and swivels relative to the second clamp jaw.

Claims

1. A position sensor mount for a diagnostic system for fluid control valves, comprising:

a base having a mount for coupling to a position sensor and a first clamp jaw;

a toggle clamp fixedly attached to the base, the toggle clamp having a main body coupled to the mount and a second clamp jaw that opposes the first clamp jaw and is pivotably coupled to the main body, wherein the toggle clamp automatically adjusts to provide a fixed clamping force at different distances between the first clamp jaw and the second clamp jaw; and

an engagement assembly carried by the second jaw, wherein the engagement assembly includes at least a first clamp pad having a distal end that directly faces the first clamp jaw and swivels relative to the second clamp jaw.

2. The position sensor mount of claim 1, wherein the first clamp pad includes a swivel joint that allows the clamp pad to swivel.

3. The position sensor mount of claim 1, wherein the engagement assembly further comprises:

a separating arm carried by the second clamp jaw, wherein the separating arm extends transverse to the second clamp jaw;

the first clamp pad carried by the separating arm; and

a second clamp pad carried by the separating arm, the second clamp pad having a distal end that directly faces the first clamp jaw and swivels relative to the second clamp jaw,

wherein the first and second clamp pads are disposed on opposite lateral sides of the separating arm.

4. The position sensor mount of claim 1, wherein the first clamp pad is tilted inwardly at an angle toward the toggle clamp from the second clamp jaw such that a distal end of the first clamp pad is parallel with the first clamp jaw when the second clamp jaw is disposed at a non-parallel angle away from the first clamp jaw.

5. The position sensor mount of claim 1, wherein the first clamp pad includes a soft covering.

6. The position sensor mount of claim 1, wherein the first clamp jaw includes a receiver facing the second clamp jaw, and wherein the receiver is shaped and sized to receive the end of a bolt therein.

7. The position sensor mount of claim 1 in combination with a valve actuator, wherein the first and second clamp jaws are clamped onto the valve actuator.

8. A position sensor mount for a diagnostic system for fluid control valves, comprising:

grip pliers having first and second jaws that clamp onto bolt flanges of a diaphragm casing, the grip pliers including a guide rail extending downwardly from the first and second jaws;

a sensor bracket for carrying a position sensor; and

an articulating arm having a first end coupled to the guide rail and a second end releasably coupled to the sensor bracket,

wherein the articulating arm has a combination of arms and pivot joints arranged such that the sensor bracket can be adjusted in six degrees of freedom relative to the grip pliers.

9. The position sensor mount of claim 8, further comprising:

a plurality of apertures through the guide rail, the apertures spaced longitudinally apart from each other along the length of the guide rail; and

the first end of the articulating arm having a connector that releasably fastens to every one of the apertures, whereby the articulating arm can be selectively fastened to the guide rail at any one of the apertures.

10. The position sensor mount of claim 8,

wherein the sensor bracket includes an elongate plate extending from a first end to a second end, a first aperture through the first end, and second aperture through the second end, wherein a connector at the second end of the articulating arm releasably fastens to the first aperture and the position sensor is fastened to the second aperture.

11. The position sensor mount of claim 8 in combination with a valve actuator, wherein the first and second jaws of the grip pliers are clamped onto the valve actuator.

12. A position sensor mount for a diagnostic system for fluid control valves, comprising:

grip pliers having first and second jaws that clamp onto bolt flanges of a diaphragm casing, the grip pliers including a guide rail extending downwardly from the first and second jaws;

a sensor bracket for carrying a position sensor; and

an extension rail extending between a first end and a second end, the first end releasably fastened to the guide rail, and a plurality of holes through the extension rail and spaced apart longitudinally between the first end and the second end,

wherein the sensor bracket can be releasably fastened at a plurality of different locations along the extension rail with a fastener that fastens the sensor bracket to each of the plurality of holes.

13. The position sensor mount of claim 12, wherein the sensor bracket includes a guide hole that slidingly receives the extension rail therethrough, wherein the sensor bracket can slide along the extension rail to any one of the plurality of holes through the extension rail.

14. The position sensor mount of claim 12, wherein the sensor bracket includes a mounting aperture, and the position sensor is fastened to the sensor bracket at the mounting aperture.

15. The position sensor mount of claim 14, wherein the mounting aperture comprises an elongate slot, and the position sensor can be fastened at each of an infinite number of positions along the elongate slot.

16. The position sensor mount of claim 12, wherein the extension rail comprises an elongate hollow tube member, and the bottom end of the guide rail fits into the first end of the extension rail.

17. The position sensor mount of claim 16, wherein, at the first end of the extension rail, a pair of aligned bolt holes extend through first and second opposing sides of the hollow tube member, and a pair of slits extend longitudinally from the first end of third and fourth opposing sides of the hollow tube member, wherein the first end is releasably fastened to the guide rail with a fastener that extends through the pair of aligned bolt holes and another hole through the bottom end of the guide rail.

18. The position sensor mount of claim 12, further comprising:

a first clamp pad carried by the first clamp jaw and having a first clamping surface; and

a second clamp pad carried by the second clamp jaw and having a second clamping surface;

each of the first and second clamping surfaces directly facing and opposite each other;

the first clamp pad including a first receiver in the first clamping surface;

the second clamp pad including a second receiver in the second clamping surface,

wherein each of the first receiver and the second receiver is shaped and sized to receive a bolt head and/or a nut and the distal end of a bolt.

19. The position sensor mount of claim 18,

wherein the second receiver is a counter sunk bore.

20. The position sensor mount of claim 12 in combination with a valve actuator, wherein the first and second jaws of the grip pliers are clamped onto the valve actuator.

21. A position sensor mount for a diagnostic system for fluid control valves, comprising:

a channel bracket having a web and first and second flanges, and first mounting apertures through the web;

a strap to clamp the channel bracket to an actuator casing; and

a sensor bracket with a second mounting aperture and a third mounting aperture,

wherein the second mounting aperture can be selectively aligned with each of the first mounting apertures and a bolt extending through one of the first mounting apertures and the second mounting aperture fastens the sensor bracket to the web of the channel bracket, and

wherein a position sensor is coupled to the sensor bracket at the third mounting aperture.

22. The position sensor mount of claim 21, wherein the sensor bracket includes a flat plate and a flange at a first end of the plate, wherein the second aperture extends through the flange and the third aperture extends through the flat plate.

23. The position sensor mount of claim 21, and comprising:

fourth mounting apertures extending through the first and second flanges,

wherein the second mounting aperture can be selectively aligned with each of the fourth mounting apertures and a bolt extending through one of the fourth mounting apertures and the second mounting aperture fastens the sensor bracket to the flange of the channel bracket.

24. The position sensor mount of claim 21 in combination with a valve actuator, wherein the channel bracket is clamped to the valve actuator with the strap.