CN201835977U

CN201835977U - Hydraulic screw engine

Info

Publication number: CN201835977U
Application number: CN 201020585998
Authority: CN
Inventors: 曹清华
Original assignee: Nanchang Institute of Technology
Current assignee: Nanchang Institute of Technology
Priority date: 2010-11-02
Filing date: 2010-11-02
Publication date: 2011-05-18
Anticipated expiration: 2020-11-02

Abstract

A hydraulic screw engine comprises a hollow cylindrical shell. A liquid inlet is arranged on one side of the shell; an inlet flange is mounted at the position of the liquid inlet in a fastened manner; a spindle hole is arranged on the other side of the shell; an end cap with a through hole is fixedly mounted outside the spindle hole; the through hole and the spindle hole are coaxial; both the inner diameters of the through hole and the spindle hole are larger than the outer diameter of a spindle; one end of the spindle is positioned in the shell and provided with a flow guide head; the other end of the spindle sequentially penetrates through the spindle hole on the shell and the through hole on the end cap and extends out of the end cap; a bearing fixedly mounted to the inner side of the spindle hole is sleeved outside the spindle; a liquid outlet is arranged at the bottom of the shell below the bearing; more than one screw wheel is fixedly sleeved between the flow guide head on the spindle and the bearing; and a rectifying plate is sleeved between the screw wheel and the bearing. The hydraulic screw engine uses industrial residual liquid energy as a power source to drive the screw wheel to move and act, and is low in noise, small in vibration, better in working environment, high in volumetric efficiency and long in service life.

Description

Screw engine surges

Technical field

The utility model relates to a kind of motor, particularly a kind of screw engine that surges.

Background technique

The radial load of double-screw compressor gas is big, so the main frame bearing life of double-screw compressor is shorter, can only work under low exhaust pressure, and the axle bending deflection easily of twin-screw, cause the back lash big, leak also greatlyyer, added clearance volume, so volumetric efficiency is low slightly.It is bigger to impact the gearing noise and the vibration that are produced in addition between the twin-screw flank of tooth mutually.There is engagement pair in its transmission of twin-screw power engine, the requirement on machining accuracy height, and Equipment Requirement height, meshing wear are also inevitable, and the life-span is restricted, and maintenance and operating cost are higher.

The model utility content

The purpose of this utility model is to provide that a kind of simple in structure, long service life, operation expense are low, the screw engine that surges of high working efficiency.

The technological scheme that the utility model is taked is: a kind of screw engine that surges, the casing that comprises hollow tube-shape, casing one side has liquid entering hole, the fastening installation suction flange in liquid entering hole place, the opposite side of casing has spindle hole, spindle hole external stability is equipped with the end cap that has through hole, described through hole and spindle hole coaxial line, the internal diameter of through hole and spindle hole is all greater than the external diameter of main shaft, one end of main shaft is positioned at casing and has flow guiding head, the other end of main shaft passes spindle hole on the casing successively and the through hole on the end cap stretches out from end cap, the main shaft outer cover is equipped with the bearing that is fixedly mounted on the spindle hole inboard, the bottom of bearing below casing has liquid outlet, and fixed cover is equipped with more than one helical wheel between flow guiding head on the main shaft and the bearing, is set with rectifying disc between helical wheel and the bearing.

The utility model high speed light loading, the no exhaust pulsation phenomenon of spiral rotation, pneumatic noise is little, vibrate for a short time, working environment is better, and does not have to impact mutually between the twin-screw flank of tooth gearing noise that is produced, during work, helical wheel can bending deflection, does not have engagement, leaks for a short time, and adding does not have clearance volume, so volumetric efficiency height, helical wheel is symmetry on the screw axis circumference, thus bearing be not subjected to any axially and the effect of radial force, the bearing life of helical wheel is prolonged.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

Embodiment as shown in Figure 1, a kind of screw engine that surges, the casing 2 that comprises hollow tube-shape, casing 2 one sides have liquid entering hole 10, the fastening installation suction flange 1 in liquid entering hole 10 places, the opposite side of casing 2 has spindle hole, spindle hole external stability is equipped with the end cap 7 that has through hole, described through hole and spindle hole coaxial line, the internal diameter of through hole and spindle hole is all greater than the external diameter of main shaft 6, one end of main shaft 6 is positioned at casing 2 and has flow guiding head 9, the other end of main shaft 6 passes spindle hole on the casing 2 successively and the through hole on the end cap 7 stretches out from end cap 7, and main shaft 6 outer cover are equipped with the bearing 5 that is fixedly mounted on the spindle hole inboard, and the bottom of bearing 5 below casings 2 has liquid outlet 8, fixed cover is equipped with more than one helical wheel 3 between flow guiding head 9 on the main shaft 6 and the bearing 5, is set with rectifying disc 4 between helical wheel 3 and the bearing 5.

Casing 2 is connected by the floss hole of suction flange 1 with surplus liquid tapping equipment, surplus liquid flows into the casing 2 of hollow tube-shape by liquid entering hole 10, carrying out water conservancy diversion rear driving helical wheel 3 by flow guiding head 9 rotates, because helical wheel 3 is fixedly set in the main shaft outside, so helical wheel 3 drives main shafts 6 and rotates and do work, discharge by the liquid outlet 8 of the bottom of bearing 5 below casings 2 surplus liquid helical wheel 3 backs of flowing through.Rectifying disc 4 has the rectification protective function.

Claims

1. screw engine that surges, the casing (2) that comprises hollow tube-shape, it is characterized in that: casing (2) one sides have liquid entering hole (10), liquid entering hole (10) is located fastening installation suction flange (1), the opposite side of casing (2) has spindle hole, spindle hole external stability is equipped with the end cap (7) that has through hole, described through hole and spindle hole coaxial line, the internal diameter of through hole and spindle hole is all greater than the external diameter of main shaft (6), one end of main shaft (6) is positioned at casing (2) and has flow guiding head (9), the other end of main shaft (6) passes spindle hole on the casing (2) successively and the through hole on the end cap (7) stretches out from end cap (7), main shaft (6) outer cover is equipped with the bearing (5) that is fixedly mounted on the spindle hole inboard, the bottom of bearing (5) below casing (2) has liquid outlet (8), fixed cover is equipped with more than one helical wheel (3) between flow guiding head (9) on the main shaft (6) and the bearing (5), is set with rectifying disc (4) between helical wheel (3) and the bearing (5).