Claims
- 1. An aerial tube bundle puller for extracting a tube bundle from a heat exchanger, comprising:
- (a) a cradle having a support frame and a superstructure connected to said support frame for suspending said support frame from above;
- (b) a longitudinally extendable carriage frame having a stationary portion overlaying said support frame and engaged therewith, and a telescoping portion matingly slidable in relation to said stationary portion, said telescoping portion being slidable relative to said stationary portion to allow tube bundles of varying lengths to be extracted from heat exchangers;
- (c) a sled longitudinally slidable on said stationary portion of said carriage frame, said sled having means to engage said tube bundle;
- (d) means connected to said sled and said stationary portion of said carriage frame for propelling said sled along said stationary portion;
- (e) a tube bundle support on said telescoping portion of said carriage frame, whereby said support is positioned below said tube bundle between an end of said tube bundle engaged with said sled and an opposite end of said tube bundle; and
- (f) means to power said sled propelling means.
- 2. An aerial bundle puller according to claim 1 wherein said power means is a hydraulic pump and said sled propelling means is hydraulically powered.
- 3. An aerial bundle puller according to claim 2 wherein said hydraulic pump is driven by a combustion engine, said pump and said engine being entirely supported by said cradle.
- 4. An aerial bundle puller according to claim 3 further comprising means, powered by said hydraulic pump, for extending said telescoping portion of said carriage frame from said stationary portion.
- 5. An aerial bundle puller according to claim 3, wherein said sled propelling means comprises a screw drive, powered by said hydraulic pump and mounted on said carriage frame, and a threaded coupling mounted on said sled.
RELATED APPLICATIONS
This application is a continuation of U.S. patent application Ser. No. 07/116,773 filed on Nov. 4, 1987, and now U.S. Pat No. 4,869,638 specific mention being made herein to obtain the benefit of its earlier filing date.
US Referenced Citations (10)
Continuations (1)
|
Number |
Date |
Country |
Parent |
116773 |
Nov 1987 |
|