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Permanent magnet direct drive drawworks

A permanent magnet motor, direct technology, applied in mechanically driven excavators/dredgers, electric components, winches, etc., can solve problems such as loss of power

Inactive Publication Date: 2012-09-12
凯文·R·威廉姆斯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also a loss of power when utilizing a transmission due to the friction inherent in using the transmission

Method used

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  • Permanent magnet direct drive drawworks
  • Permanent magnet direct drive drawworks
  • Permanent magnet direct drive drawworks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] refer to figure 2 , shows a side view of a preferred embodiment of the permanent magnet direct drive winch 100 of the present invention. The winch 100 has a permanent magnet motor 40 . A shaft 41 is connected to a permanent magnet motor 40 . Bearing housing 45 is located adjacent permanent magnet motor 40 and shaft 41 . Shaft 41 extends through bearing housing 45 to the interior of motor 40 . The roller 43 is connected to an end 47 of the shaft 41 opposite to the permanent magnet motor 40 . The cable 24 is wound around a drum 43 . The drum 43 is in a hanger 53 . The hanger 53 supports the shaft 41 to keep the drum 43 and motor 40 above the surface of the table (eg, the drill floor 12 ). A braking system 49 is located on the side of the drum 43 opposite the motor 40 . exist figure 2 In this case, the brake system 49 has a brake disc 51 located near the drum 43 . figure 2 The braking system 49 in is water-cooled. A power source 48 is connected to the permanent m...

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PUM

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Abstract

A direct drive drawworks (100) has a permanent magnet motor (40), a shaft (41) extending from the permanent magnet motor (40) so that the permanent magnet motor directly rotates the shaft (41), and a drum (43) connected to the shaft (41) away from the permanent magnet motor (40) such that the rotation of the shaft causes a corresponding rotation of the drum. The permanent magnet motor (40) has a housing (42), a stator (62) positioned in the housing, and a rotor (64) cooperative with the stator. The rotor (64) has a drive plate (66) affixed thereto. The shaft (41) is directly connected to the drive plate (66). A bearing housing (45) rotatably supports the shaft.

Description

technical field [0001] The present invention relates to oilfield equipment. In particular, the present invention relates to drawworks used in oil and gas drilling and production. In particular, the invention relates to winches with permanent magnet motors. Background technique [0002] A drawworks is a common component of oilfield equipment used in oil and gas drilling and production. A winch is typically installed near an oil rig. Common functions of drawworks are raising and lowering drill pipe and casing out of and into the wellbore. A winch may be referred to as a hoist or winch. There are many different sizes of winches used in winches in the drilling and mining industries. The size of the winches is reflected in the power ratings for such winches. These winches share a similar mode of operation and similar equipment. [0003] Drawworks are used to hoist and lower loads, such as drill pipe, when inserting and pulling drill pipe into and out of open wells. Pullin...

Claims

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Application Information

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IPC IPC(8): E02F5/04B66D1/14E02F3/88
CPCB66D1/12E21B19/008H02K7/1004
Inventor 凯文·R·威廉姆斯
Owner 凯文·R·威廉姆斯