CN2826006Y

CN2826006Y - Double cycloid gear composed speed reducer of submersible screw pump

Info

Publication number: CN2826006Y
Application number: CN 200520094993
Authority: CN
Inventors: 丁焰
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-20
Filing date: 2005-01-20
Publication date: 2006-10-11
Anticipated expiration: 2015-01-20

Abstract

The utility model proposes a kind of screw submerged pump retarder that constitutes with double cycloid gear.It mainly contains casing, upper and lower end cap, input shaft, output shaft.Between output shaft and input shaft, be provided with two pairs and make the interior external gear (Z1, Z2, Z3, Z4) of profile of tooth with cycloid, Z1 and Z2 engagement, Z3 and Z4 mesh.Wherein Z4 and output shaft fixed connection are together.Z2 and Z3 are fixed together, Z1 and upper end cap are fixed together, Z3 is slidedly assemblied on the input shaft by eccentric bushing and needle roller, the lower end of Z2 is because of being connected with Z3 in running, be supported on the input shaft by eccentric bushing, be provided with one in the upper end of Z2 and make Z2 and Z3 keep the cross bearing support that is synchronized with the movement.Z1, Z2, Z3, Z4 are designed to the multidisc stack, can further improve power, owing to adopted the double cycloid gear transmission, make the utility model can accomplish that diameter is little, transmitted power is big, and the life-span is long.

Description

Speed reducer of double cycloid gear submersible screwrod pump

Technical field

The utility model relates to well recovery screw submerged pump retarder, particularly speed reducer of double cycloid gear submersible screwrod pump.

Background technique

At present, more advanced well recovery method is to be placed on the shaft bottom with oil-immersed pump, and oil is released from the shaft bottom, and this method applicability is strong, and straight well, inclined shaft can both use, and well depth is also unrestricted.Oil-immersed pump has two kinds, and a kind of is oil-submersible centrifugal pump, and another kind is a screw submerged pump.Preceding a kind of oil-submersible centrifugal pump can directly be connected with motor, but efficient is low, and pressure is not high.A kind of submersible screw pump performance in back is best, but this equipment must add a retarder between oil-submersible motor and screw submerged pump, could guarantee proper functioning.This retarder is because of being subjected to the restriction of well casing diameter, requires diameter very little and transmitted power is very big.Conventional retarder all can not be finished this work.Useful NGW type planetary reducer is made in the prior art, because diameter restrictions, operating mode is abominable, and power is done not quite, and the life-span is not long, does not satisfy the actual requirement of recovering the oil.

Summary of the invention

The purpose of this utility model is that a kind of diameter that constitutes with double cycloid gear of proposition is little, and transmitted power is big, the screw submerged pump retarder that the life-span is long.

The utility model is achieved in that it mainly contains casing, upper and lower end cap, input shaft, output shaft.Between output shaft and input shaft, be provided with two pairs and make the interior external gear (Z1, Z2, Z3, Z4) of profile of tooth with cycloid, Z1 and Z2 engagement, Z3 and Z4 mesh.Wherein Z4 and output shaft fixed connection are together.Z2 and Z3 are fixed together, Z1 is fixed together with upper end cap by the fork-shaped cover, and Z3 is slidedly assemblied on the input shaft by eccentric bushing and needle roller, and the lower end of Z2 is because of being connected with Z3 in running, be supported on the input shaft by eccentric bushing, the upper end of Z2 then is a cantilever position.For keeping stabilizing and increasing power, a cross bearing support is set in the upper end of Z2, be assemblied on the input shaft by an eccentric bushing sliding device, make it in operation process, always keep being synchronized with the movement with Z3.

In order further to improve power, Z1, Z2, Z3, Z4 are designed to multidisc, multi-disc cycloid internal gear Z4 is fixed together by the inner spline housing stack, inner spline housing and output shaft fixed connection are together, multi-disc cycloid external gear Z3 adds by the external splines intussusception and is fixed together, multi-disc cycloid internal gear Z2 is fixed together by the inner spline housing stack, fixedly the external splines of Z3 cover also is fixed together with the fixing inner spline housing of Z2, multi-disc cycloid external gear Z1 adds by the external splines intussusception and is fixed together, and its external splines is fixed together with upper end cap by the fork-shaped cover.The concrete practice is that fork-shaped puts and is provided with the interior keyway of a plurality of square forks and upper end cap and matches, and is screwed.

Its working procedure is such.Fig. 1 is its fundamental diagram.It is a cover epicyclic transmission mechanism, gear Z1 fixes, when input shaft rotates with n1, its eccentric shaft driven gear Z2, Z3 do planetary motion, simultaneously because of Z2 and Z1 engagement, make Z2, Z3 make spinning motion, Z3 drives Z4 and rotates with n2, and its speed ratio is: I=1/ (1-Z1*Z3* (1/Z2) * (1/Z4))

The utlity model has tangible advantage: make gear because of having adopted cycloidal tooth profile, multiple tooth participation work, bearing capacity is strong, and anodontia interference made simply, adopts the assembly method of stack, can be easy to reach do very for a short time diameter and the very big target of power.

Flute profile also can adopt involute tooth type, but owing to reasons such as between cog interference, manufacturing bothers than cycloidal gear.

The utility model can also be applicable to that other need minor diameter, powerful occasion except that making the screw submerged pump retarder.For example make the synchronous retarder of turbodrill with it.

Description of drawings and embodiment

Following further specifies the utility model with drawings and Examples.

Fig. 1 is a fundamental diagram of the present utility model.

Fig. 2 is an assembling schematic representation of the present utility model.

Fig. 3 Fig. 4 Fig. 5 is the sectional view of A-A among Fig. 2, B-B, C-C

Fig. 6 is a gear stack assembling schematic representation of the present utility model.

Fig. 7 Fig. 8 be A-A among Fig. 6, B-B, sectional view

Wherein, 1----takes over, the 2----input shaft, the 3----bearing, 4----upper end cap, 5----cross bearing support, 6----cycloid external gear Z1,7----cycloid internal gear Z2,8----casing, the 9----eccentric bushing, 10----cycloid external gear Z3,11----cycloid inner gear shaft Z4, the 12----oil ring, 13----lower end cap, 14----attachment screw, the 15----needle roller, 16----fork-shaped cover, 17----needle roller, the 18----equilibrium block, the 19----needle roller, 20----needle roller, 21----equilibrium block, the 22----bearing, the 23----needle roller, 24----lower velocity shaft, 25----inner spline housing, the cycloid internal gear Z4 of 26----band external splines, the cycloid external gear Z3 of 27----band internal spline, 28----external splines cover, 29----multistage eccentric bushing, the 30----inner spline housing, the cycloid internal gear Z2 of 31----band external splines, the cycloid external gear Z1 of 32----band internal spline, 33----external splines cover.

Find out that from Fig. 2,3,4,5 it mainly contains casing (8) the utility model, upper end cap (4), lower end cap (13), input shaft (2), output shaft (11).Between output shaft (11) and input shaft (2), be provided with two pairs and make the interior external gear (Z1, Z2, Z3, Z4) of profile of tooth, Z1 (6) and Z2 (7) engagement, Z3 (10) and Z4 (11) engagement with cycloid.Wherein Z4 and output shaft fixed connection are together, Z2 and Z3 are fixed together, Z1 is fixed together by fork-shaped cover (16) and upper end cap (4), Z3 (10) is slidedly assemblied on the input shaft (2) by eccentric bushing (9) and needle roller (19), the lower end of Z2 in running (7) is because of being connected with Z3 (10), be supported on the input shaft (2) by eccentric bushing (9), a cross bearing support (5) be set, be slidedly assemblied on the input shaft (2) by an eccentric bushing in the upper end of Z2 (7).

In order further to improve power, Z1, Z2, Z3, Z4 are designed to the multidisc stack.From Fig. 6,7, find out in 8, multi-disc cycloid internal gear Z4 (26) is fixed together by inner spline housing (25) stack, inner spline housing (25) is fixed together with output shaft (24), multi-disc cycloid external gear Z3 (27) is fixed together by external splines cover (28) stack, multi-disc cycloid internal gear Z2 (31) is fixed together by inner spline housing (30) stack, fixedly the external splines cover (28) of Z3 (27) also is fixed together with the fixing inner spline housing (30) of Z2 (31), multi-disc cycloid external gear Z1 (32) is fixed together by external splines cover (33) stack, and its external splines cover (33) is fixed together by fork-shaped cover (16) and upper end cap (4).

Claims

1, a kind of speed reducer of double cycloid gear submersible screwrod pump, it mainly contains casing (8), upper end cap (4), lower end cap (13), input shaft (2), output shaft (11), it is characterized in that between output shaft (11) and input shaft (2), being provided with two couples of interior external gear (Z1 that make profile of tooth with cycloid, Z2, Z3, Z4), Z1 (6) and Z2 (7) engagement, Z3 (10) and Z4 (11) engagement, wherein Z4 and output shaft fixed connection are together, Z2 and Z3 are fixed together, Z1 is fixed together by fork-shaped cover (16) and upper end cap (4), Z3 (10) is slidedly assemblied on the input shaft (2) by eccentric bushing (9) and needle roller (19), and a cross bearing support (5) that changes Z2 (7) upper end cantilever position is set in the upper end of Z2 (7), and cross bearing support (5) is slidedly assemblied on the input shaft (2) by an eccentric bushing.

2, speed reducer of double cycloid gear submersible screwrod pump according to claim 1, it is characterized in that Z1, Z2, Z3, Z4 is designed to the multidisc stacking pattern, multi-disc cycloid internal gear Z4 (26) is fixed together by inner spline housing (25) stack, inner spline housing (25) is fixed together with output shaft (24), multi-disc cycloid external gear Z3 (27) is fixed together by external splines cover (28) stack, multi-disc cycloid internal gear Z2 (31) is fixed together by inner spline housing (30) stack, fixedly the external splines cover (28) of Z3 (27) also is fixed together with the fixing inner spline housing (30) of Z2 (31), multi-disc cycloid external gear Z1 (32) is fixed together by external splines cover (33) stack, and its external splines cover (33) is fixed together with upper end cap by the fork-shaped cover.

3, speed reducer of double cycloid gear submersible screwrod pump according to claim 1 and 2 is characterized in that fork-shaped puts the keyway that is provided with in a plurality of square forks and the upper end cap and matches, and is screwed.

4, speed reducer of double cycloid gear submersible screwrod pump according to claim 1 and 2 is characterized in that the flute profile of gear Z1, Z2, Z3, Z4 adopts cycloidal tooth profile, perhaps adopts involute profile.

5, speed reducer of double cycloid gear submersible screwrod pump according to claim 1 and 2 is characterized in that manufacturing the synchronous retarder of turbodrill with it.