CN200943676Y

CN200943676Y - Three-stage speed-reducer

Info

Publication number: CN200943676Y
Application number: CNU200620123237XU
Authority: CN
Inventors: 张桂华; 邢延方; 张红; 徐秀荣; 刘淑艳; 刘彦涛; 庞玉霞
Original assignee: Daqing Oilfield Equipment Manufacturing Group
Current assignee: Daqing Oilfield Equipment Manufacturing Group
Priority date: 2006-08-01
Filing date: 2006-08-01
Publication date: 2007-09-05
Anticipated expiration: 2016-08-01

Abstract

A new type three-grade speed reducer solves essentially the problem of current three-grade speed reducers that the shaft bearings cannot be lubricated thoroughly, characterized in that a lateral wall of the casing body (1) has an oil duct communicating with shaft bearing (6) and also an oil collection box (9) communicating with the oil duct; the lateral wall of the casing body (1) facing the left and right hand gears (7, 8) is provided with a fixed oil scraping box (10), which is near outer external side of the left and right hand gears (7, 8); the oil collection box (9) and the oil scraping box (10) connect via a scoop tube (9); scale height of the oil scraping box (10) is larger than that of the oil collection box (9). With advantages of simple structure and favorable lubricating performance, the new type three-grade speed reducer may lubricate thoroughly each shaft bearing therein.

Description

Novel triple reduction gear

Technical field:

The utility model relates to beam pumping unit retarder used in the oil recovery field, oil field, especially novel triple reduction gear.

Background technique:

Along with the most of oil field of China enters the exploitation middle and later periods, stripper well exploitation quantity constantly increases, in the peripheral oil recovery factory of grand celebration, quite a few stripper well production fluid amount is arranged at present at 2～4 tons/day, following pump is φ 32mm, φ 38mm and 3 series of φ 44mm, by theoretical stroke 2.5m design, minimum jig frequency should reach 2 minutes 1 time.And the minimum jig frequency of existing common beam pumping unit is 4 minutes 1 time, sky generally occurs and takes out phenomenon, and oil recovery efficiency is low.In order to reduce the pumping unit jig frequency, generally be to change the bigger retarder of reduction speed ratio, the method that adopts is to change original two stage reduction gear into triple reduction gear at present, because output shaft gearwheel and the distance between other in the triple reduction gear are far away, and the rotating speed of output shaft gearwheel is lower, the splash lubrication of the Bearing support gearwheel on each and flooding system lubrication can not be satisfied the lubrication needs of each bearing, make the bearing in the retarder can not get lubricating fully, and normal oil recovery of influence produced.

The model utility content:

In order to solve the problem that each bearing in the existing triple reduction gear can not get sufficient lubrication, the utility model provides a kind of novel triple reduction gear, it is lubricated fully that this novel triple reduction gear can make each bearing in the retarder obtain, and has characteristics simple in structure, high lubricating effect.

The technical solution of the utility model is: this novel triple reduction gear comprises casing, the one-level driving shaft, the secondary driving shaft, three grades of driving shafts and output shaft, the one-level driving shaft, the secondary driving shaft, between three grades of driving shafts and output shaft and the casing bearing is arranged all, gear is revolved about being fixed with respectively in the two ends of three grades of driving shafts, have the oil duct that communicates with bearing on the sidewall of casing, on wall box, be fixed with the oil box that communicates with the oil duct of casing, about revolve wall box that gear mesh answers and be fixed with and scrape oil box, scrape oil box near about revolve gear the outside, oil box with scrape oil box and link to each other by conduit, the absolute altitude of scraping oil box is higher than oil box.

The utlity model has following beneficial effect: owing to take such scheme, when retarder is worked, revolving gear about the lubricant oil quilt in the casing takes up, scraped in the oil box again then, be higher than oil box owing to scrape the absolute altitude of oil box, lubricant oil will enter in the oil box by conduit, again in the sidewall that enters casing from oil box and the oil duct that bearing communicates, after on the casing oil duct flow into bearing and be lubricated.It is lubricated, simple in structure fully that this novel triple reduction gear can make each bearing in the retarder obtain, high lubricating effect.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is oil boxes 9 and the connection diagram of scraping oil box 10 among Fig. 1.

1-casing among the figure, 2-one-level driving shaft, 3-secondary driving shaft, three grades of driving shafts of 4-, the 5-output shaft, the 6-bearing, the left-handed gear of 7-, 8-dextrorotation gear, the 9-oil box, 10-scrapes oil box, the 11-conduit.

Embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

By Fig. 1 in conjunction with shown in Figure 2, this novel triple reduction gear comprises casing 1, one-level driving shaft 2, secondary driving shaft 3, three grades of driving shafts 4 and output shaft 5, one-level driving shaft 2, secondary driving shaft 3, between three grades of driving shafts 4 and output shaft 5 and the casing 1 bearing 6 is arranged all, about being fixed with respectively, the two ends of three grades of driving shafts 4 revolve gear (7,8), have the oil duct that communicates with bearing 6 on the sidewall of casing 1, on casing 1 sidewall, be fixed with the oil box 9 that communicates with the oil duct of casing 1, about revolve gear (7,8) Dui Ying casing 1 sidewall is fixed with and scrapes oil box 10, scrape oil box 10 near about revolve gear (7,8) the outside, oil box 9 with scrape oil box 10 and link to each other by conduit 11, the absolute altitude of scraping oil box 10 is higher than oil box 9.

When retarder is worked, revolve gear (7 about the lubricant oil quilt in the casing 1,8) take up, scraped in the oil box 10 again then, be higher than oil box 9 owing to scrape the absolute altitude of oil box 10, lubricant oil will enter in the oil box 9 by conduit 11, again in the sidewall that enters casing 1 from oil box 9 and the oil duct that bearing 6 communicates, after on the casing 1 oil duct flow into bearing 6 and be lubricated.It is lubricated, simple in structure fully that this novel triple reduction gear can make each bearing 6 in the retarder obtain, high lubricating effect.

Claims

1, a kind of novel triple reduction gear, comprise casing (1), one-level driving shaft (2), secondary driving shaft (3), three grades of driving shafts (4) and output shaft (5), one-level driving shaft (2), secondary driving shaft (3), between three grades of driving shafts (4) and output shaft (5) and the casing (1) bearing (6) is arranged all, about being fixed with respectively, the two ends of three grades of driving shafts (4) revolve gear (7,8), it is characterized in that: have the oil duct that communicates with bearing (6) on the sidewall of casing (1), on casing (1) sidewall, be fixed with the oil box (9) that communicates with the oil duct of casing (1), about revolve gear (7,8) Dui Ying casing (1) sidewall is fixed with and scrapes oil box (10), scrape oil box (10) near about revolve gear (7,8) the outside, oil box (9) with scrape oil box (10) and link to each other by conduit (11), the absolute altitude of scraping oil box (10) is higher than oil box (9).