CN204810034U - Small -size marine motor of IP67 - Google Patents

Abstract

The utility model relates to a protection level IP67's small -size marine motor. The motor includes the flange end cover, the shaft -cup, the rear end cap, a stator, rotor and junction box cover, the stator is by the frame, there is winding stator core, the waterproof cable is constituteed, the rear end cap is the stifle, it is sealed with O shape sealing washer between shaft -cup and the flange end cover, adopt O shape sealing washer and the little clearance fit's of long tang seal structure between junction box cover and the frame, marine waterproof cable adopts marine packing box sealing connection with junction box cover, the flange end cover, adopt 3 sets of skeleton oil blankets between shaft -cup and the pivot, sealed felt and little clearance fit, the seal structure who adopts two O shape sealing washers and the little clearance fit motor of long tang between flange end cover, rear end cap and the frame is reliable, satisfies IP67's sealed requirement, simple structure is particularly suitable for the small -size marine and subseries IP67 three -phase asynchronous motor of Y80-160 -H.

Description

IP67 Small-sized Marine motor

Technical field

The utility model relates to field of electromechanical equipment, is the Small-sized Marine motor of a kind of degree of protection IP67 specifically.

Background technology

GB/T4942.1-2006 " the integrally-built degree of protection of electric rotating machine (IP code) classification " specifies:

First bit digital 6 of IP67 is " dirt cipher telegram machine prevents dust from entering completely "; Second-order digit 7 is that " protected against the effects of immersion motor, when motor immerses in the water of authorized pressure after the stipulated time, the inflow of motor should not reach harmful degree.”

For convenience of describing, for Y90L-4-HIP67 marine service motor.Motor operating state is: it is dark that motor immerses about 0.5 ~ 0.8 meter, seawater completely, after driving device work 20 ~ 30min, departs from seawater and leaves standstill 60 ~ 90min; Then the next work period is entered.

Because the rotation of motor shaft brings very large difficulty to the sealing of motor.Especially immerse work in seawater, very high requirement is proposed to the hermetically-sealed construction of motor.Once enter seawater in motor cavity, insulation breakdown, winding will be caused, thus corollary equipment cannot be worked.We, through repeatedly manufacturing experimently and analogue test, have devised the Y90L-4-HIP67 marine service motor met the requirements of the customers.

Summary of the invention

In order to the operational environment meeting motor is harsh, degree of protection requires high technical barrier, we take following technical scheme.Motor comprises flange end cap, shaft-cup, rear end cap, stator, rotor and connector cover, stator is by support, be made up of winding stator core, water-proof cable, rear end cap is stifle, seal with O-ring seals between shaft-cup and flange end cap, the hermetically-sealed construction that O-ring seals and long seam small―gap suture coordinate is adopted between connector cover with support, water-proof cable peculiar to vessel and connector cover adopt packing box seal peculiar to vessel to be connected, and it is characterized in that:

1) flange end cap, adopt 3 cover outside framework oil seals, sealing felt and the hermetically-sealed construction that coordinates of small―gap suture between shaft-cup with rotating shaft;

2) flange end cap, the hermetically-sealed construction that adopts two O-ring seals and long seam small―gap suture to coordinate between rear end cap with support;

3) small―gap suture cooperation refers to fit clearance 0.15≤ic≤0.20mm;

Long seam cooperation refers to mating surface length 15≤L≤20mm.

The beneficial effects of the utility model are:

The hermetically-sealed construction of motor is reliable, can prevent the dust of certain pressure and water from immersing motor internal, meet the seal request of IP67, extend the life-span of motor; Structure is simple, is particularly suitable for the IP67 threephase asynchronous of Y80 ~ 160-H Small-sized Marine and subseries.

Accompanying drawing explanation

Accompanying drawing is installation diagram of the present utility model.

In figure, 1-fluorubber outside framework oil seal 3 (GB/T9877.1-88, the sealing for flange end cap and rotating shaft); 2-shaft-cup; 3-O RunddichtringO (GB/T3452.1-92) wherein, 301-is used for the axial seal of shaft-cup and flange end cap, 302,303-is used for the axial seal of two O-ring seals of flange end cap and support, 304-is used for the axial seal of connector cover and support, 305,306-is for the axial seal of two O-ring seals of rear end cap and support); 4-screw (GB70-85 is connected with flange end cap for shaft-cup); The wear-resisting felt seal bar of 5-immersion oil; 6-flange end cap; 7-bolt (GB5781-2000 is connected with flange end cap for support); 8-stator (801-support, 802-water-proof cable peculiar to vessel, 803-holding screw (GB/T73-85), 804-has winding stator core, 805-lifting bolt (GB/T825-88)); 9-connector cover; 10-bolt (GB/T5783-2000 is connected with connector cover for support); 11-stuffing box peculiar to vessel (degree of protection IP68); 12-rotor; 13-bolt (GB/T5783-2000 is connected with rear end cap for support); 14-deep groove ball bearing (GB/T276-94); 15-wavy spring sheet (JB/T7590-2005); 16-rear end cap.

Embodiment

Illustrate the utility model by reference to the accompanying drawings

1. motor assembling:

1) stator assembling: winding stator core (804) will be had to be pressed into support (801); The terminal box wire hole of water-proof cable peculiar to vessel (802) from support is drawn; Bore set screw hole, holding screw (803) is installed; Lifting bolt (805) is installed.

2) terminal box assembling: O-ring seals (304) is installed in the seal groove of connector cover (9); Stuffing box peculiar to vessel (11) is installed on connector cover (9), and water-proof cable peculiar to vessel (802) is passed from stuffing box peculiar to vessel (11); Connector cover (9) and support (801) bolt (10) are connected and fixed, and are put in place by packing box seal peculiar to vessel.

3) rotor assembling: deep groove ball bearing (14) is assembled on rotor (12).

4) flange end cap assembling: 2 fluorubber outside framework oil seals (1) are assembled on flange end cap (6); 2 O-ring seals (302,303) and the wear-resisting felt seal bar (5) of immersion oil are respectively installed in the seal groove of flange end cap (6); Flange end cap (6) and support (801) bolt (7) are connected and fixed.

5) rear end cap assembling: be installed in the seal groove of rear end cap (16) by 2 O-ring seals (305,306), wavy spring sheet (15) puts into the bearing chamber of rear end cap (16).

6) shaft-cup assembling: fluorubber outside framework oil seal (1), O-ring seals (301) are installed in the seal groove of shaft-cup (2).

7) final assembly: rotor is penetrated stator gently, assembling rear end cap, shaft-cup, use bolt (13) respectively, screw (4) be connected and fixed.

Attention: in above assembling process, all threaded engagement faces, end face mating surface uniform application fluid sealant;

All seam mating surfaces, outside framework oil seal mating surface all uniform application high temperature and high speed lubricating grease.

2. motor test:

1) routine test: property indices meets standard, has no abnormal sound, vibrates.

2) degree of protection test:

I. first motor 1h is sprayed, without water inlet in motor cavity with the current of 2.4MPa at the different directions of distance 1.0 ~ 1.2 meters.

Ii. successively motor is immersed each 24h in 1.4 meters, 1.8 meters, 2.0 meters dark simulated seawaters, without water inlet in motor cavity.

Iii. motor is immersed energizing test 2h in 2.0 meters of dark simulated seawaters, without water inlet in motor cavity, property indices meets standard again.

The harsh several times of the IP67 experimental condition that above experimental condition specifies than GB/T4942.1-2006.

At present, the IP67 that this motor has achieved national authority mechanism detects the certificate of competency, and shipment actual measurement property indices meets customer requirement.

Claims (1)

1.IP67 Small-sized Marine motor comprises flange end cap, shaft-cup, rear end cap, stator, rotor and connector cover, stator is by support, be made up of winding stator core, water-proof cable, rear end cap is stifle, seal with O-ring seals between shaft-cup and flange end cap, the hermetically-sealed construction that O-ring seals and long seam small―gap suture coordinate is adopted between connector cover with support, water-proof cable peculiar to vessel and connector cover adopt packing box seal peculiar to vessel to be connected, and it is characterized in that:

1) flange end cap, adopt 3 cover outside framework oil seals, sealing felt and the hermetically-sealed construction that coordinates of small―gap suture between shaft-cup with rotating shaft;

2) flange end cap, the hermetically-sealed construction that adopts two O-ring seals and long seam small―gap suture to coordinate between rear end cap with support;

3) small―gap suture cooperation refers to fit clearance 0.15≤ic≤0.20mm;

Long seam cooperation refers to mating surface length 15≤L≤20mm.