CN201301801Y

CN201301801Y - High-pressure plunger pump cross fitting

Info

Publication number: CN201301801Y
Application number: CNU2008202213337U
Authority: CN
Inventors: 姚博; 熊国良; 鲁胜伟; 陈宗林; 丁继东; 张宏; 张国; 何荣
Original assignee: Sinopec Zhongyuan Oilfield Co No 1 Oil Production Plant
Current assignee: Sinopec Zhongyuan Oilfield Co No 1 Oil Production Plant
Priority date: 2008-11-21
Filing date: 2008-11-21
Publication date: 2009-09-02
Anticipated expiration: 2018-11-21

Abstract

The utility model discloses a high-pressure plunger pump cross fitting, which belongs to the technical field of power end devices of reciprocated high-pressure plunger pumps, and comprises a cross fitting body and a box body, wherein the cross fitting body is an oblate structure, whose upper end and lower end are provided with spacing grooves, sliding shoes are mounted in the spacing grooves through a fixed bolt, the outer walls of the sliding shoes are provided with oil grooves and sliding shoe discharge hole, and the sliding shoes and the slideway of a box body form clearance fit. The high-pressure plunger pump cross fitting effectively avoids the cross fitting from directly contacting with the slideway of the box body, improves the lubricating condition, prevents the cross fitting and the box body from mutually rubbing to cause integrally-abandoned grave mechanical accidents, prolongs the service span, has strong interchangeability and easy assembly and disassembly, lowers production cost, and improves economic benefits.

Description

The high-pressure plunger pump crosshead

Technical field:

The utility model relates to a kind of high-pressure plunger pump crosshead, belongs to reciprocating type high-pressure plunger pump power end device technique field in the oilfield water injection equipment.

Technical background:

High-pressure three-plunger pump, five-plunger pump and monomer booster plunger pump and injection pump that oil-field flooding is at present adopted, the crosshead of its power end device and slideway fit are Spielpassung, during work, because of symbolic animal of the birth year between crosshead and the slideway rubs mutually with material, add the drawback of crosshead " full circle " structure, after very easily causing crosshead and casing slideway to pull, the great mechanical accident that causes crosshead and casing integral body to be scrapped, cause to water filling production to have a strong impact on, also increased the input and the enormous economic loss of repair cost simultaneously.

Summary of the invention:

The purpose of this utility model is to pull for overcoming in the prior art between the crosshead body and slideway because of friction mutually, the defective that causes crosshead body and casing integral body to be scrapped, design friction area between a kind of minimizing crosshead and the slideway, the novel crosshead of the high-pressure plunger pump that prolongs its working life.

The utility model is made up of crosshead body and casing, crosshead body is oblate structure, and its upper/lower terminal has restraining groove, by fixing bolt sliding shoes is installed in restraining groove, having oil groove on the sliding shoes outer wall and sliding shoes unloads oilhole, is Spielpassung between the slideway of sliding shoes and casing.

The utility model can effectively avoid crosshead body directly to contact with the casing slideway, improve its lubricating condition, prevent crosshead body and casing great mechanical accident because of rubbing and cause its integral body to be scrapped mutually, prolong its working life, and interchangeability is strong, easy disassembling reduces production costs, and increases economic efficiency.

Description of drawings:

Fig. 1 is the utility model general assembly section of structure;

Fig. 2 is the utility model crosshead body part ssembly drawing.

Embodiment:

By accompanying drawing 1 and Fig. 2 as can be known, the utility model is made up of crosshead body 1 and casing 4, crosshead body 1 is oblate structure, its upper/lower terminal has restraining groove 6, in restraining groove 6, sliding shoes 2 is installed by fixing bolt 3, having oil groove 7 on sliding shoes 2 outer walls and sliding shoes unloads oilhole 8, is Spielpassung between the slideway of sliding shoes 2 and casing 4.

During work, have only between crosshead body 1 upper/lower terminal sliding shoes 2 and the slideway 4 and form Spielpassung, rubbing surface and surface friction drag have promptly been reduced, avoided crosshead body 1 directly to contact again with casing 4 slideways, prevent that crosshead body 1 and casing 4 integral body from scrapping, in case of questions the sliding shoes 2 that can directly adjust or change on the crosshead body 1 gets final product.In addition; splash by bent axle and to get rid of oil and guarantee that there is sufficient lubricating oil on the slideway top of casing 4 near unloading oilhole 5; and flow to the lip-deep oil grooves 7 of bottom sliding shoes 2 and unload oilhole 8 through unloading oilhole 5, help the formation of lubricant film, effectively protected crosshead body 1 and casing 4 injury-free.

Claims

1, a kind of high-pressure plunger pump crosshead, form by crosshead body (1) and casing (4), it is characterized in that crosshead body (1) is oblate structure, its upper/lower terminal has restraining groove (6), in restraining groove (6), sliding shoes (2) is installed by fixing bolt (3), having oil groove (7) on sliding shoes (2) outer wall and sliding shoes unloads oilhole (8), is Spielpassung between the slideway of sliding shoes (2) and casing (4).