Built-in type low-speed big high-power explosion-proof motorized pulleys
Technical field
The present invention relates to motorized pulleys, specifically a kind of built-in type low-speed big high-power explosion-proof motorized pulleys.
Background technology
In industrial electrical dragging system, traditional drive mechanism is motor-shaft coupling(Or fluid coupling)- slow down
Device-roller etc..This exemplary apparatus configuration, is widely applied, especially high-power system, still using this conventional junction
Structure.For a long time, this gives live operation maintenance to bring many problems:(1)Transmission efficiency is relatively low;(2)Operation maintenance workload is big,
Cost is high;(3)Space needed for equipment arrangement is big, and preliminary engineering investment is big etc..
In recent years, although there are motorized pulleys to apply in practice, but as built-in type motorized pulleys, its structure is by electricity
Machine, decelerator etc. are placed in inside, roller the oil cooled mode that uses.Apply in the equipment such as belt conveyer and Lifting Convey
On power.In industries such as harbour, mine, metallurgy, chemical industry, coal, building materials, electric power, grain and communications and transportation, extensively should it obtain
With.But there is also application and use upper limitation problem:(1)Current country's built-in type motorized pulleys, usually middle low power
Below low-voltage 90KW, does not have substantially using the product of built-in high-power transmission;(2)Motor, decelerator embedding structure, there is oil cooling
It is difficult with oil immersion structural maintenance(Leakage etc.), the problem of maintenance cost is high;(3)Traditional drive mechanism, still suffers from efficiency
Relatively low the problem of, such as conventional belt machine and belt system transmission efficiency, are generally 70% or so.
CN201320170980.0 disclose a kind of direct drive of doubly-salient brushless motor built-in type motorized pulleys,
CN201510010867.X discloses a kind of straight drive motorized pulleys high reliability motor, and CN201710026725.1 discloses one
Motorized pulleys motor is planted, it is characterized in jointly to connect as one rotor outer periphery wall with barrel inwall, using double-salient-pole electricity
Machine structure, two phase windings have mutually isolated passage, and fault-tolerant operation can be achieved, and improve system reliability.But above-mentioned technical proposal from
Middle low power is applicable on structural principle, brush DC speed adjusting technique is used.
In view of traditional middle low power transmission system there are problems that high energy consumption, poor efficiency, difficult in maintenance, cost, it is necessary to
A kind of low-speed big, high-power electric roller are proposed, and low-speed big, high-power above all solution system cooling are asked
Topic.
The content of the invention
Present invention seek to address that the above mentioned problem that prior art is present, and it is high-power to provide a kind of built-in type low-speed big
Anti-explosion electric roller.
The present invention solve its technical problem use technical scheme be:
A kind of built-in type low-speed big high-power explosion-proof motorized pulleys, including cylinder, main shaft, external rotor magnetic poles, stator winding,
Cylinder is assemblied on main shaft by rolling bearing, cylinder inboard wall fix external rotor magnetic poles, composition be both rotor and cylinder forever
Magnetic outer rotor roller;Main shaft is hollow shaft, and two cavitys built in main shaft a, cavity is stator winding and drums inside heat transmission
Circulating cooling aquaporin, another is stator three-phase power line and temperature transducer outer lead passage;Punching press is fixed fixed on main shaft
Son, stator winding is embedded in silicon steel sheet wire casing, constitutes the stationary part of motorized pulleys.
Above-mentioned technical proposal, is inputted using three-phase alternating-current supply, produced by the rotating excitation field and rotor permanent-magnet steel of formation
Magnetic field interaction produce torque, dragging rotor synchronous operation, formed dragging system.
Using the present invention of above-mentioned technical proposal, compared with prior art, beneficial effect is:
Stator spindle design is hollow-core construction, realizes what drum shell natural heat dissipation was combined with inside and outside recirculated water forcing functions
The type of cooling.This unique structure, has reached the simple degree of device configuration ultimate attainment, has belt feeder or conveyer efficient
Rate, low-speed big, powerful feature;Using permagnetic synchronous motor technology and with after frequency converter, speed can to maximum from zero
Adjust, drastically increase motorized pulleys efficiency, compared with the transmission system that normal asynchronous is constituted, feature is as follows:
(1)Device configuration greatly reduces, and instead of motor, decelerator, fluid coupling etc., and equipment arrangement saves a large amount of skies
Between, the civil engineering of Equipment Foundations is reduced, to mine down-hole place, roadway engineering is reduced, saves engineering initial investment;
(2)The operation maintenance amount of live electromechanical equipment is greatly reduced, and system maintenance is simple, saves manpower, service material, system event
Barrier rate is low, and production accident is reduced;
(3)Because system configuration is simple, the Permanent Magnet and Electric drum drive system effectiveness can improve 20%-- compared with legacy system
30%, reduce power consumption.
Further, preferred scheme of the invention is:
Main shaft is telescoping structure, and center inner cylinder is that stator three-phase power line and temperature transducer outer lead go out line passage, in
It is the circulating cooling aquaporin of stator winding and drums inside heat transmission between intracardiac cylinder and outer cylinder body, outer cylinder body end is provided with
Recirculated cooling water interface.
Recirculated cooling water interface is connected by cooling water circulation pipeline with heat exchanger, and cooling water circulation pipeline is provided with liquid
Body pressure detecting element and fluid flow detecting element, fluid pressure detecting element and fluid flow detecting element are returned with main control
Electric blocking is realized in road connection.
Cylinder wheel rim outer end is fixed with the outside of disk brake lock, disk brake lock and is provided with explosion-proof end cover.By disc brake, make
Electronic drums are safer.
Outside cylinder the cold rubber-wrapping structure of roller of conveyer belt is machined with circumferencial direction.The purpose for setting cold rubber-wrapping structure is to add
Frictional force between big transmission adhesive tape and cylinder outer wall, also can preferably reduce and adhesive tape is worn and torn.
Brief description of the drawings
Fig. 1 is its exterior structural representation of the embodiment of the present invention;
Fig. 2 is half-sectional structural representation inside motorized pulleys;
In figure:Permanent-magnetic outer rotor roller 1;Main shaft 2;Firm banking 3 is installed;Disk brake lock 4;Explosion-proof end cover 5;Water bar 6;It is anti-
Quick-fried terminal box 7;Recirculated cooling water interface 8;Fluid flow detecting element 9;Fluid pressure detecting element 10;Heat exchanger 11;Outside
Rotor magnetic pole 12;Stator winding 13;Circulating cooling aquaporin 14;Go out line passage 15;Cold rubber-wrapping structure 16;Cylinder 17;The axis of rolling
Hold 18.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
Referring to Fig. 1, Fig. 2, a kind of built-in type high pulling torque high-power explosion-proof motorized pulleys, cylinder 17 is filled by rolling bearing 18
Fit on main shaft 2;Main shaft 2 supports fixation by installation firm banking 3, and main shaft 2 is telescoping structure, and center inner cylinder is stator three-phase
Power line and temperature transducer outer lead go out line passage 15, are stator winding and drums inside between center inner cylinder and outer cylinder body
The circulating cooling aquaporin 14 of heat transmission, outer cylinder body end is provided with recirculated cooling water interface 8;Punching press is fixed fixed on outer cylinder body
Son, stator winding 13 is embedded in silicon steel sheet wire casing, constitutes the stationary part of motorized pulleys;The inwall of cylinder 17 fixes external rotor magnetic poles
12, composition is both the permanent-magnetic outer rotor roller 1 of rotor and cylinder.
Stator three-phase power line and temperature transducer outer lead go out at line passage 15 in entrance is provided with insulation sleeve fixed knot
Structure, to prevent that power line damages power line insulation in the generation friction of this corner during equipment operation, causes device damage.
Recirculated cooling water interface 8 is connected by cooling water circulation pipeline with heat exchanger 11, is set on cooling water circulation pipeline
There are fluid pressure detecting element 10 and fluid flow detecting element 9, fluid pressure detecting element 10 and fluid flow detecting element 9
It is connected with main control loop and realizes electric blocking.
The wheel rim outer end of cylinder 17 is fixed with disk brake lock 4, and the outside of disk brake lock 4 is provided with explosion-proof end cover 5, passes through braking
Brake disc 4 realizes disc brake, electronic drums can be made safer.
The outside of cylinder 17 is machined with the cold rubber-wrapping structure 16 of roller of conveyer belt in circumferencial direction, and cold rubber-wrapping structure 16 can add
Frictional force between big transmission adhesive tape and cylinder outer wall, also can preferably reduce and adhesive tape is worn and torn.
The end of main shaft 2 is provided with anti-explosion terminal box 7, and anti-explosion terminal box 7 is 100-150mm apart from recirculated cooling water interface 8,
Water bar 6 is provided between anti-explosion terminal box 7 and recirculated cooling water interface 8.
The above described is only a preferred embodiment of the present invention, any type of limitation is not done to the present invention, it is any
Without departing from the content of technical solution of the present invention, the technical spirit according to the present invention any is simply repaiied to made for any of the above embodiments
Change, equivalent variations and modification, belong to the scope of technical solution of the present invention.