| 摘要 |
An apparatus for pulling a well pipe and downhole pump from a well and is constructed of relatively lightweight materials to enable the apparatus to be easily moved to a well site by the provision of a frame structure supported by relatively large wheels and a handle structure which enables the apparatus to be pushed, pulled or lifted for movement to an accurate orientation in relation to the well site and well casing with the apparatus providing a solid connection with the well casing for safe and efficient operation. The apparatus includes opposed belt structures for engaging opposite surfaces of a well pipe with the belt being driven by a motor and two worm gear speed reducers having outputs that turn drive axles in opposite directions which are drivingly connected to the belts and fork arms associated with the axles to enable adjustment of the contact area of the belts with the well pipe or other equipment which may be encountered when pulling a pump from a well.
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