Lubricating horsehead pin of oil pumping machine

A donkey head pin and pumping unit technology, which is applied in the direction of engine lubrication, mechanical equipment, engine components, etc., can solve the problems of complicated maintenance of donkey head pins, inconvenient turning and disassembly of donkey head pins, etc., and achieve simple maintenance , to avoid the effect of rust

Inactive Publication Date: 2012-10-17
WUXI YUJI TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a self-lubricating donkey head pin, which solves the problems o

Method used

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  • Lubricating horsehead pin of oil pumping machine

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[0019] The present invention will be described in detail below with reference to the embodiments shown in the drawings. However, it should be noted that these embodiments do not limit the present invention, and those of ordinary skill in the art make functional, method, or structural improvements based on these embodiments. Equivalent changes or substitutions fall within the protection scope of the present invention.

[0020] Please refer figure 1 As shown, figure 1 It is a partial cross-sectional view of a specific embodiment of a lubricated donkey pin for pumping units of the present invention. In this embodiment, a pumping unit lubricated donkey head pin 100 includes: a first pin body 10, a second pin body 20, and a connecting portion connecting the first pin body 10 and the second pin body 20 30.

[0021] In this embodiment, the surface of the first pin body 10 is provided with an external thread 11 for screwing and holding the donkey head (not shown) through the external th...

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Abstract

The invention provides a lubricating horsehead pin of an oil pumping machine. The lubricating horsehead pin comprises a first pin body, a second pin body, a connecting part for connecting the first pin body with the second pin body, and a chock plug, wherein external threads are arranged on the surface of the first pin body; a cavity is arranged in the second pin body; a penetrating hole is arranged in the surface of the second pin body; the cavity is mutually communicated with the penetrating hole; and the chock plug is movably embedded in the cavity and is in screw connection and fixation with the second pin body. When the lubricating horsehead pin of the oil pumping machine is maintained, the hosehead pin has no need to be disassembled, the maintenance of the horsehead pin is realized through prestoring lubricating oil in the cavity arranged in the second pin body and injecting the lubricating oil into the outer surface of the horsehead pin through the penetrating hole, the phenomenon of rust of the horsehead pin is avoided, and the horsehead pin is simpler to maintain.

Description

technical field [0001] The invention relates to a pin used for connecting the donkey head of an oil pumping unit with a beam in the process of oil exploitation, in particular to a lubricating donkey head pin of an oil pumping unit. Background technique [0002] The donkey head pin is an important device for connecting the donkey head of the pumping unit to the beam. The pin body and the pin hole are in clearance fit. If maintenance is required during normal operation, the pin needs to be removed. Even if lubricating oil is applied to the mating surface, the preservation is limited. Not conducive to rust. Since the pumping unit belongs to field work equipment, the pins and pin holes are greatly affected by the external environment. If it is not maintained for a long time, it is easy to rust, which will affect the turning and disassembly of the donkey head during operation. In severe cases, the beam must be disassembled, which increases the maintenance workload and the m...

Claims

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Application Information

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IPC IPC(8): F16B19/02F16N1/00E21B43/00
Inventor 鲍洪生
Owner WUXI YUJI TECH
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