Universal balance plate

• US 4,530,239 A
• Filed: 04/11/1984
• Issued: 07/23/1985
• Est. Priority Date: 05/28/1981
• Status: Expired due to Fees

• Current Assignee: Joseph V. Scarinci
• Original Assignee: Joseph V. Scarinci
• Inventors: Scarinci, Joseph V.
• Primary Examiner(s): Levy, Stewart J.
• Assistant Examiner(s): Chapman, Jr., John E.
• Application Number:
  US06/599,235
• Time in Patent Office: 468 Days
• Field of Search: 73/485, 73/487, 73/455, 73/460
• US Class Current: 73/455
• CPC Class Codes: G01M 1/04 Adaptation of bearing support assemblies for receiving the body to be tested

Abstract

A universal balancing plate is presented for balance of rotational parts. The plate is an aluminum plate which is webbed for strength and hard coated for wear. There are five slots in radial locations in which five steel details slide on rotary screws. Three slots carry tool locators to pilot the part to be balanced, and two slots carry hold down bolts to secure the part to the plate. Each movable detail has a vernier scale attached for quick radial adjustment via a crank at the outside diameter of the aluminum plate.

Claims

1. A plate for use with a machine for precision balancing of a jet engine rotary machinery piece said plate comprising:

aluminum disc means, said disc means having an axial hub, said disc means being rotatably secureable to a spindle of a balancing machine, said disc means having first and second surfaces;

three locating means, said locating means being radially mounted upon said disc means second surface about said hub, said locating means being spatially separated equally from one another, said locating means being radially movable with respect to said disc means hub and extending above said disc means first surface, said locating means being retainable in a desired position, said locating means engaging and centering a rotary machinery piece on said disc means; and

two hold down means, said hold down means being radially mounted upon said disc means second surface about said hub, said hold down means being spatially separated 180°

part from one another and being angularly spaced relative to said locating means, said hold down means being radially movable with respect to said disc means hub and extending above said disc means first surface, said hold down means being retainable in a desired position, said hold down means engaging and securing a centered rotary machinery piece to said disc means.

2. The apparatus of claim 1 further comprising:

a locating ring on said disc for accurately centering said disc means upon a balancing machine.

3. The apparatus of claim 1 wherein said locating means comprises:

elongated locating web means, said locating web means being radially mounted upon said disc means second surface about said hub, said locating web means being spatially separated equally from one another, said locating web means having first and second ends with said first end nearest said hub, said locating web means being provided with an elongated radial slot;

locating block means, said block means being slidably mounted within said radial slot, said locating block means being radially moveable towards and away from said disc means hub, said locating block means extending above said disc means first surface, said locating block means engaging and centering a rotary machinery piece on said disc means; and

means for retaining said locking block means within said locating radial slot in a desired radial position.

4. The apparatus of claim 2 wherein said locating means comprises:

elongated locating web means, said locating web means being radially mounted upon said disc means second surface about said hub, said locating web means being spatially separated equally from one another, said locating web means having first and second ends with said first end nearest said hub, said locating web means being provided with an elongated radial slot;

locating block means, said block means being slidably mounted within said radial slot, said locating block means being radially moveable towards and away from said disc means hub, said locating block means extending above said disc means first surface, said locating block means engaging and centering a rotary machinery piece on said disc means; and

means for retaining said locating block means within said locating radial slot in a desired radial position.

5. The apparatus of claim 1 wherein said hold down means comprises:

elongated hold down web means, said hold down web means being radially mounted upon said disc means second surface about said hub, said hold down web means being spatially separated equally from one another, said hold down web means having first and second ends with said first end nearest said hub, said hold down web means being provided with an elongated radial slot;

hold down block means, said block means being slidably mounted within said radial slot, said hold down block means being radially moveable towards and away from said disc means hub, said hold down block means extending above said disc means first surface, said hold down block means engaging and securing a centered rotary machinery piece on said disc means; and

means for retaining said hold down block means within said hold down radial slot in a desired radial position.

6. The apparatus of claim 2 wherein said hold down means comprises:

elongated hold down web means, said hold down web means being radially mounted upon said disc means second surface about said hub, said hold down web means being spatially separated equally from one another, said hold down web means having first and second ends with said first end nearest said hub, said hold down web means being provided with an elongated radial slot;

hold down block means, said block means being slidably mounted within said radial slot, said hold down block means being radially moveable towards and away from said disc means hub, said hold down block means extending above said disc means first surface, said hold down block means engaging and securing a centered rotary machinery piece on said disc means; and

means for retaining said hold down block means within said hold down radial slot in a desired radial position.

7. The apparatus of claim 4 wherein said hold down means comprises:

elongated hold down web means, said hold down web means being radially mounted upon said disc means second surface about said hub, said hold down web means being spatially separated equally from one another, said hold down web means having first and second ends with said first end nearest said hub, said hold down web means being provided with an elongated radial slot;

hold down block means, said block means being slidably mounted with said radial slot, said hold down block means being radially moveable towards and away from said disc means hub, said hold down block means extending above said disc means first surface, said hold down block means engaging and securing a centered rotary machinery piece on said disc means; and

means for retaining said hold down block means within said hold down radial slot in a desired radial position.

8. The apparatus of claim 3 wherein said locating web means are integral with said second surface of said disc means.

9. The apparatus of claim 4 wherein said locating web means are integral with said second surface of said disc means.

10. The apparatus of claim 5 wherein said hold down web means are integral with said second surface of said disc means.

11. The apparatus of claim 6 wherein said hold down web means are integral with said second surface of said disc means.

12. The apparatus of claim 7 wherein said locating web means are integral with said second surface of said disc means.

13. The apparatus of claim 12 wherein said hold down web means are integral with said second surface of said disc means.

14. The apparatus of claim 7 wherein said hold down block means and said locating block means includes:

a projection bolt portion extending through said radial slots of said hold down web means and said locating web means.

15. The apparatus of claim 13 wherein said hold down block means and said locating block means includes:

a projection bolt portion extending through said radial slots of said hold down web means and said locating web means.

16. The apparatus of claim 7 wherein said hold down block means is secured to the centered machinery piece by a bolt.

17. The apparatus of claim 13 wherein said hold down block means is secured to the centered machinery piece by a bolt.

18. The apparatus of claim 7 wherein said hold down block means is secured to the centered machinery piece by a clamp.

19. The apparatus of claim 13 wherein said hold down block means is secured to the centered machinery piece by a clamp.

20. The apparatus of claim 2 wherein said centering means are weights which are removably secured to said disc means.

21. The apparatus of claim 7 wherein said centering means are weights which are removably secured to said disc means.

22. The apparatus of claim 13 wherein said centering means are weights which are removably secured to said disc means.