CN208749289U

CN208749289U - Three key perseverances turn round sealing universal shaft

Info

Publication number: CN208749289U
Application number: CN201821228845.6U
Authority: CN
Inventors: 韩文全; 罗绪良; 黄玉明; 刘海宁; 王军利
Original assignee: Tianjin Lilin Petroleum Machinery Co Ltd
Current assignee: Tianjin Lilin Petroleum Machinery Co Ltd
Priority date: 2018-07-31
Filing date: 2018-07-31
Publication date: 2019-04-16
Anticipated expiration: 2028-07-31

Abstract

The utility model belongs to helicoid hydraulic motor technical field, in particular to a kind of three key perseverances turn round sealing universal shaft, including three key universal bars, and are symmetrically installed three bonded connection components that the three keys universal bar both ends are arranged in；The three keys universal bar both ends end face is dome shape, the side at three key universal bar both ends is uniformly provided with three arc bonds, the utility model eliminates the steel ball and goalpost of conventional hermetic ball universal shaft Yu goalpost universal shaft, it is processed into three key-shaped shape of circular arc using by three key universal bars, two end side surface, and is coupled permanent torsion Woodruff key slots and keyways at three slotting key centers with arc-shaped；It increases three semicircle perseverances and turns round keys, make that universal shaft is more flexible under motor planetary rotation, is more uniformly stressed, keep motor torque output more stable；Transmission area is bigger, and bearing capacity is stronger, can preferably adapt to complex working condition.

Description

Three key perseverances turn round sealing universal shaft

Technical field

The utility model belongs to helicoid hydraulic motor technical field, in particular to a kind of three key perseverances turn round sealing universal shaft.

Background technique

Helicoid hydraulic motor has become indispensable drilling tool in drillng operation, it is not only in petroleum, geological prospecting, underground heat Directional well, horizontal well, extended reach well in well, coal-bed gas exploitation, etc. play particularly important effect in special process.For stone The helicoid hydraulic motor of exploration activity is usually to be made of by-pass valve assembly, anti-lost assembly, motor assembly, universal axle assembly, transmission shaft.Its In the effect of universal axle assembly be that the torque for generating motor rotor planetary motion is changed into dead axle torque, the torsion that motor is generated Square and revolving speed smoothly pass to the drilling tool for drilling well.As energy resource geology exploration drilling efficiency is continuously improved, helicoid hydraulic motor Motor output performance is also being continuously improved；Therefore be badly in need of wanting it is a can balanced motor output torque, transmission effect is higher, swings The universal axle assembly that more flexible, universal shaft is integrally more uniformly stressed, anti-overload ability is stronger, the service life is longer.

Utility model content

The utility model proposes a kind of three key perseverances torsion sealing ten thousand for the problems in above-mentioned background technique of effective solution To axis, specific technical solution is as follows:

A kind of three key perseverances torsion sealing universal shaft, including three key universal bars, and be symmetrically installed and be arranged in the three keys universal bar Three bonded connection components at both ends；The three keys universal bar both ends end face is dome shape, and the side at three key universal bar both ends is equal It is even to set there are three arc bond；

Three bonded connection components include: three bonded heads, ball seat, Sealing shield ring, sealing lock ring and steel band clamp；Institute It states ball seat and is mounted on three bonded central interiors, and connect with the universal boom end of three keys；The three bonded head and sealing lock ring spiral shell Line connection, the sealing lock ring and three key universal bars are sequentially installed with the steel band clamp and Sealing shield ring, the Sealing shield ring It is loaded cooperation with the arc bond, the shaft shoulder secure fit of the steel band clamp and three key universal bars；

Three permanent torsion keys that installation is matched with three arc bonds are equipped with inside the three bonded head.

Preferably, three bonded sides are equipped with oil inlet.

Preferably, the oil inlet is blocked by mounting screw.

The utility model has the beneficial effects that: (1) eliminates the steel ball of conventional hermetic ball universal shaft Yu goalpost universal shaft And goalpost, it is processed into three key-shaped shape of circular arc using by three key universal bars, two end side surface, and in three slotting keys with arc-shaped The heart is coupled permanent torsion Woodruff key slots and keyways；Increase three semicircle perseverances and turn round keys, make universal shaft it is more flexible under motor planetary rotation, It is more uniformly stressed, keeps motor torque output more stable；Transmission area is bigger, and bearing capacity is stronger, can preferably adapt to multiple General labourer's condition；(2) three key perseverances are turned round and turn round key apparatus using permanent inside sealing universal shaft, can it is effectively constant, stablize motor output torque, Weigh motor assembly and driving-shaft assembly stress, and plays the role of protecting stator rubber；Use helicoid hydraulic motor complete machine Service life increases substantially；(3) three key perseverances turn round the knot that sealing universal shaft turns round key using three key universal bar of circular arc type and three semicircle perseverances Structure, universal shaft turn round key automatic adjustment by permanent in motor rotor planetary motion state lower stress face, and torque transfer is more efficiently, Weighing apparatus, universal shaft stress is more preferably uniform compared to other structures universal shaft, effectively improves the service life of universal shaft.

Detailed description of the invention

Fig. 1 is the utility model assembly diagrammatic cross-section；

Fig. 2 is the utility model part Assembly part perspective view of the explosion.

Specific embodiment

Specific embodiment of the present utility model is described in detail in conjunction with attached drawing and preferred embodiment

A kind of three key perseverances torsion sealing universal shaft, including three key universal bars 1, and be symmetrically installed and be arranged in the three keys universal bar Three bonded connection components at both ends；The three keys universal bar both ends end face is dome shape 2, and the side at three key universal bar both ends is equal It is even to set there are three arc bond 3；

Three bonded connection components include: three bonded heads 4, ball seat 5, Sealing shield ring 6, sealing lock ring 7 and steel band card Son 8；The ball seat 5 is mounted on three bonded 4 central interiors of head, and connect with three key universal bars, 1 end；The three bonded head 4 with It seals lock ring 7 to be threadedly coupled, the sealing lock ring 7 and three key universal bars 1 are sequentially installed with the steel band clamp 8 and Sealing shield ring 6, the Sealing shield ring 6 and the arc bond 3 are loaded cooperation, and the shaft shoulder of the steel band clamp 8 and three key universal bars 1, which is fixed, matches It closes；Three permanent torsion keys 9 that installation is matched with three arc bonds 3 are equipped with inside the three bonded head 4.The three bonded head 4 sides are equipped with oil inlet 10, and the oil inlet is blocked by mounting screw 11.

By the technical program, keep more preferably uniform universal shaft stress, flexible swinging, bearing capacity stronger；And three key it is permanent The permanent of torsion sealing universal shaft turns round key, can effectively constant, stable motor output torque, balanced motor assembly and driving-shaft assembly stress State increases substantially helicoid hydraulic motor complete machine service life.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the protection scope of the utility model, and the above is only the preferred embodiment of the utility model.

Claims

1. a kind of three key perseverances turn round sealing universal shaft, which is characterized in that including three key universal bars, and be symmetrically installed and be arranged described three Three bonded connection components at key universal bar both ends；The three keys universal bar both ends end face is dome shape, three key universal bar both ends Side be uniformly provided with three arc bonds；

Three bonded connection components include: three bonded heads, ball seat, Sealing shield ring, sealing lock ring and steel band clamp；The ball Seat is mounted on three bonded central interiors, and connect with the universal boom end of three keys；The three bonded head and sealing lock ring screw thread connect Connect, be sequentially installed with the steel band clamp and Sealing shield ring between the sealing lock ring and three key universal bars, the Sealing shield ring with The arc bond is loaded cooperation, the shaft shoulder secure fit of the steel band clamp and three key universal bars；

2. three keys perseverance according to claim 1 turns round sealing universal shaft, which is characterized in that three bonded sides be equipped with into Hydraulic fluid port.

3. three keys perseverance according to claim 2 turns round sealing universal shaft, which is characterized in that the oil inlet passes through mounting screw It blocks.