Power end hub puller kit apparatus and methods
US11679456B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2020 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Jul 4, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49822
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hub puller kit for pulling hubs off of power ends of frac pumps, and a method of removing a hub from a pinion shaft of a power end using the hub puller kit. The hub puller kit has an adapter flange formed out of a monolithic body with fastener openings, and a hydraulic actuator coupled to the adapter flange. The adapter flange has a stepped surface formed on a first surface and a recessed surface formed in a second surface, and a central opening having a threaded flange portion that extends from the stepped surface to the recessed surface. The hydraulic actuator has a hydraulic cylinder and a hydraulic plunger disposed at least partially within the hydraulic cylinder, and a threaded actuator portion that engages the threaded flange portion to couple the hydraulic actuator to the adapter flange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.