CN201716180U

CN201716180U - Magnetic suspension bearing measuring and control device

Info

Publication number: CN201716180U
Application number: CN2010202635459U
Authority: CN
Inventors: 唐建一
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-19
Filing date: 2010-07-19
Publication date: 2011-01-19
Anticipated expiration: 2020-07-19

Abstract

The utility model relates to a magnetic suspension bearing measuring and control device. As the magnetic suspension bearing has no friction and is energy-saving, a measuring and control debugging device is necessary. The magnetic suspension bearing measuring and control device comprises a box body simulated to a casing, a circular shaft, a simulated component, a simulated mechanical bearing, wherein a magnetic suspension bearing comprising a shaft magnet and a casing magnet, a simulated load part and a pressure measurement device; the simulated load part for simulating the total weight of a rotator is loaded on a set position of the simulated rotator; the simulated mechanical bearing is laid on the pressure measurement device through a connecting piece; an adjustable opening range is arranged between the shaft magnet and the casing magnet so as to adjust and control the magnetic force; the pressure measurement device displays the lower pressure borne by the simulated mechanism bearing, and the lower pressure is equal to the value that the loaded weight of the simulated load part detracts the upward magnetic force; the opening range is adjusted so as to enable the weight of the simulated load part to approach to the weight of the simulated load part; and the adjusted magnetic suspension bearing is mounted on a device in use and is combined with the mechanical bearing, the pressure, the friction and the abrasion of the mechanical bearing can be effectively reduced. With the magnetic suspension bearing measuring and control device, the magnetic bearings can achieve practicality.

Description

The measure and control device of magnetic suspension bearing

Technical field: magnetic levitation, magnetic suspension bearing, magnetic levitation system

Technical background:

Traditional electromechanical equipment, because of the pressure in each orientation that bearing bore of motor or generator is very big, as: heavy rotary body (fan blade, rotor, load, etc.) to the downforce of bearing, the horizontal jacking force of wind-force and the twisting power of side direction etc. are because of friction is directly proportional with pressure, then, friction is very big, and rotation is obstructed, and produces friction loss, generating efficiency reduces, and in addition, friction makes the bearing enhance faster wear and the serviceability deterioration, and then complete machine scraps, and is very unfortunate! Certainly, in theory, the scheme that can adopt the magnetic force of non-contacting friction-free magnetic suspension bearing to offset the suffered pressure of bearing solves, but the actual effect in past is undesirable, because, be difficult to Theoretical Calculation, design to such an extent that simplify very much, do not deal with problems, and too complicated, impracticable, even designed, as do not have accurate regulation and control, use and do not have actual effect yet, this outstanding issue is not as thoroughly solving, magnetic suspension bearing can't effectively be used at all, and the research of this aspect and practice, and the achievement and the disclosed report of practicality do not arranged so far as yet.

Summary of the invention:

Goal of the invention:

Invent a kind of measure and control device of magnetic suspension bearing, be intended to the magnetic suspension bearing that designs and make, on this device, carry out simulation test and observing and controlling, promptly, earlier the pressure of the suffered each side that comes from rotary body of the mechanical bearing of the simulation of this magnetic suspension bearing under the sight of its actual use of institute, this mechanical bearing that is applied to simulation gets on with all simulating, again by adjusting the magnetic structure of this magnetic suspension bearing, as regulate the distance of opening between the corresponding magnet, Deng, to control the size of its reverse magnetic force, make the pressure of the simulation that this power can offset or be substantially equal to be applied, at this moment, the suffered pressure of this mechanical bearing is eliminated basically, then, this magnetic suspension bearing just test and regulation and control is good, again this magnetic suspension bearing that mixes up, accurately moves and installs to its this equipment that uses and get on, like this, magnetic suspension bearing could use effectively; Effect that this device is simulated and accuracy have conclusive effect.

Technical scheme:

The measure and control device of magnetic suspension bearing, form by test structure and regulator control system, test structure is made of the rotary body and the fixed body of the simulation of the electromechanical equipment of using magnetic suspension bearing, comprise the casing of simulating casing, circular shaft, the parts of simulation, the mechanical bearing of simulation and at least one magnetic suspension bearing; The mechanical bearing of simulation is to be enclosed within outside the described circular shaft, described magnetic suspension bearing is made up of with the shell magnet of the corresponding position that is contained in described casing of mutual magnetic correspondence the axle magnet that hoop is enclosed within on the described circular shaft, between axle magnet and the shell magnet adjustable distance of opening is arranged; And regulator control system comprises the fictitious load spare of scalable load weight, the measuring pressure device, the fictitious load spare of general assembly (TW) of having simulated the rotary body of this electromechanical equipment is the position of setting that is carried in the rotary body of simulation, and the mechanical bearing of simulation is shelved on the measuring pressure device by web member; Regulation and control are meant regulates the described size of opening distance, also just correspondingly regulated and control the sizes values of magnetic force, the measuring pressure device records and has shown the value of the vertical downforce that the mechanical bearing of simulation is suffered, and the weight that this downforce value equals the fictitious load spare that loaded deducts the value of described magnetic force; Describedly open reducing of distance, magnetic force is just big,, can regulate out the size of distance and magnetic force that is, it is equaled or be equivalent to described downforce basically, then, described rotary body can be in magnetic suspension state or accurate magnetic suspension state, then, the suffered pressure of simulation bearing is able to slowly-releasing, that is, this magnetic suspension bearing has been born nearly all pressure, has played actual effect; The magnetic suspension bearing that the test of this cover and regulation and control are finished, accurately move to former state and install to this equipment and get on, like this, magnetic suspension bearing just can be effectual; The mechanical bearing of described simulation is meant the hollow hoop external member that is enclosed within the outer circle of circular shaft that is fixed in the described casing, between the internal diameter of described hoop external member and the external diameter of described circular shaft certain clearance is arranged, this circular shaft can be made axial float, but do not have significantly rocking radially, to play position-limiting action radially; Described measuring pressure device can adopt energy measurement and show the electronic scales of weight; The weight of fictitious load spare is the weight that is equivalent to simulate rotary body; Electromechanical equipment can be an aerogenerator; Rotary body can be the horizontal rotating shaft of horizontal type aerogenerator, or, the upright rotating shaft or the transcapsidation of vertical wind driven generator.

Beneficial effect:

The magnetic suspension bearing that has only the accurate simulation test that passed through this measure and control device and concrete regulation and control to finish successfully moves and installs to corresponding apparatus and get on, and like this, magnetic suspension bearing could use effectively; Give up this, do not have other good plan, therefore, the present invention makes the practicality of magnetic suspension bearing become possibility, thereby widespread use and exploitation to magnetic suspension bearing with superiority have realistic meanings and value.

Description of drawings:

Numbering: 1, casing 2, upright rotating shaft 3, rotor 4, hoop external member 5, magnetic suspension bearing 6, axle magnet ring 7, shell magnet ring 8 is opened apart from 9, and the weight sign indicating number 10 of fictitious load spare takes over a business 11, electronic scales 15, horizontal rotating shaft 16, shell magnet 17 connects part

Accompanying drawing:

Accompanying drawing 1: the measure and control device figure of the magnetic suspension bearing of the formula that stands aerogenerator

Accompanying drawing 2: the measure and control device figure of the magnetic suspension bearing of cantilevered aerogenerator

Specific implementation method:

Embodiment 1: see: Fig. 1

Described electromechanical equipment is meant the magnetic suspending wind turbine generator of the rotary shaft of the formula of standing, the casing 1 of simulation is the shell of having simulated as fixed body, the rotary body of simulation is the upright rotating shaft 2 of having simulated as circular shaft, the general assembly (TW) of described simulation includes, the simulation weight of the rotor 3 of the simulation weight of the wind wheel that be equipped with on the deadweight of upright rotating shaft 2 and top that should upright rotating shaft 2 and the aerogenerator that should upright rotating shaft 2 middle parts be equipped with; Hoop external member 4 as the mechanical bearing of simulation respectively is housed at two places up and down of the rotor 3 of described simulation, that is, on bind round external member and hoop external member down; Two different magnet ring as magnetic suspension bearing 5 is the top that is contained in the hoop external member, it is made of the magnet ring that all has axial magnetic of the different magnetic each other of each mutual magnetic correspondence up and down, the below be to bind round the axle magnet ring 6 that is enclosed within the upright rotating shaft 2 coaxially, the top be the shell magnet ring 7 of different magnetic that is installed in the corresponding site place of casing 1, have between the two one by the rotation of screw thread adjustable opening apart from 8, and produced adjustable magnetic attraction each other, the heavy upright rotating shaft 2 that hoop is with a magnet ring 6 be subjected to the top shell magnet ring 7 upwards inhale the magnetic attraction that draws, the weight sign indicating number 9 of fictitious load spare is a general assembly (TW) of having simulated rotary body, what its 9 top ends that are placed on upright rotating shaft 2 was equipped with takes over a business on 10, and the bottom of upright rotating shaft 2 is on the electronic scales 11 that is shelved on as the measuring pressure device; Described regulation and control are meant, this electronic scales 11 demonstrates the suffered downforce of simulation bearing, promptly, the general assembly (TW) of fictitious load spare weight sign indicating number 9 deducts magnetic attraction upwards, turn described gap 8 down, magnetic attraction is strengthened, then, downforce is just little, when adjusting open apart from and these upright rotating shaft 2 suffered magnetic attractions that make progress are equaled or when approaching the weight of described weight sign indicating number 9, upright rotating shaft 2 will be in magnetic suspension state or " accurate magnetic levitation " state that is equivalent to weightless attitude, and at this moment, the upright rotating shaft 2 of heavy simulation will be reduced to minimum degree for the downforce of the mechanical bearing of simulation; Two different magnet ring as magnetic suspension bearing 5, because of be in transverse diameter to the magnetic pole coupled state, implied have transverse diameter to the magnetic coupling force of centralized positioning effect, give upright rotating shaft 2 that hoop is with a magnet ring 6 with transverse diameter to the supporting stiffness, can resist the jacking force of horizontal side direction of wind-force and twisting power for the pressure of the formed horizontal side direction of mechanical bearing and the destruction of twisting, thereby, magnetic suspension bearing 5 has been born the burden of omnibearing pressure, and machinery position bearing is not subjected to tangible pressure, and it has only played spacing and protective effect; Mechanical bearing stressed very little, friction and friction loss are very little, and generating efficiency improves, and the wearing and tearing of mechanical bearing are very little, the life-span lengthening of mechanical bearing and complete machine, improvement in performance.

Embodiment 2: see: Fig. 2

Electromechanical equipment is meant the magnetic suspending wind turbine generator of cantilevered rotary shaft, the casing 1 of simulation is the shell of having simulated as fixed body, the rotary body of simulation is the horizontal rotating shaft 15 of having simulated as circular shaft, the general assembly (TW) of described simulation includes, the simulation weight of the simulation weight of the fan blade that the deadweight of horizontal rotating shaft 15 and its leading section are equipped with and the rotor 3 of the aerogenerator that be equipped with at this horizontal rotating shaft 15 middle parts; Hoop external member 4 as the mechanical bearing of simulation respectively is housed at two places, front and back of the rotor 3 of described simulation, that is, and preceding hoop external member and back hoop external member; Magnetic suspension bearing 5 is the fronts that are contained in described preceding hoop external member, described magnetic suspension bearing 5 is meant the magnetic subsystem, it is made of the axle magnet ring 6 that the hoop of the shell magnet 16 of top and below is enclosed within the horizontal rotating shaft 15, these two is that different magnetic is inhaled mutually, have between the two one by the rotation of screw thread adjustable opening apart from 8, thereby produced adjustable magnetic attraction each other, the heavy horizontal rotating shaft 15 that hoop is with a magnet ring 6 has been subjected to upwards the inhaling of shell magnet 16 of top and has drawn the magnetic attraction of lifting, be carried in the front portion of magnetic suspension bearing 5 as the weight sign indicating number 9 of fictitious load spare, the bottom of the hoop external member 4 of front is shelved on the electronic scales 11 as the measuring pressure device by connecting part 17; Described regulation and control are meant, electronic scales 11 has demonstrated the suffered downforce of simulation bearing, the general assembly (TW) that it equals fictitious load spare weight sign indicating number 9 deducts magnetic attraction upwards, and turn described gap 8 down, magnetic attraction is strengthened, then, this downforce has just diminished, and when regulate open apart from and these horizontal rotating shaft 15 suffered magnetic attractions that make progress are equaled or when approaching the weight of described weight sign indicating number 9, horizontal rotating shaft 15 will locate to be equivalent to magnetic suspension state or " accurate magnetic levitation " state of weightless attitude, at this moment, heavy horizontal rotating shaft 15 just is reduced to minimum degree for the downforce of mechanical bearing; In addition, because of be in the magnetic pole coupled state of X mutually as the axle magnet ring 6 of the upper casing magnetic spare 16 of the top in this magnetic subsystem of magnetic suspension bearing 5 and below, the magnetic coupling force that is implied between them, the horizontal rotating shaft 15 that makes hoop be with a magnet ring 6 has been endowed the supporting stiffness that has the centralized positioning effect at X, can resist the pushing tow of horizontal side direction of wind-force and twisting power effectively and to the burden of mechanical bearing, thereby, this magnetic suspension bearing 5 has almost been born omnibearing pressure, in fact mechanical bearing is not subjected to tangible power, has only played spacing and protective effect; Because mechanical bearing is stressed very little, friction and friction loss are little, and generating efficiency improves, and the wearing and tearing of mechanical bearing are very little, the life-span lengthening of mechanical bearing and complete machine, improvement in performance.

Claims

1. the measure and control device of a magnetic suspension bearing, form by test structure and regulator control system, it is characterized in that, described test structure is made of the rotary body and the fixed body of the simulation of the electromechanical equipment of using magnetic suspension bearing, comprise the casing of simulating casing, circular shaft, the parts of simulation, the mechanical bearing of simulation, magnetic suspension bearing; Described magnetic suspension bearing is made up of with the shell magnet of the corresponding position that is contained in casing of mutual magnetic correspondence the axle magnet that hoop is enclosed within on the circular shaft, between axle magnet and the shell magnet adjustable distance of opening is arranged, and having each other adjustable magnetic force, this magnetic force is given the magnetic force of rotary body to make progress; Utensil in the described regulator control system, the fictitious load spare that comprises the scalable load weight, the measuring pressure device, the fictitious load spare of having simulated the general assembly (TW) of described rotary body is the position of setting that is carried in the rotary body of described simulation, the mechanical bearing of simulation is shelved on the measuring pressure device by web member, this measuring pressure device has recorded the value of the suffered downforce of the mechanical bearing of simulation, the weight that it equals the fictitious load spare that loaded deducts magnetic force upwards, described regulation and control are meant, open the size of distance by adjusting, to regulate the magnetic force that makes progress that rotary body is subjected to, just regulated and control the sizes values of the suffered downforce of the mechanical bearing of simulation.

2. the measure and control device of a kind of magnetic suspension bearing according to claim 1, the mechanical bearing that it is characterized in that described simulation is meant the hollow hoop external member that plays position-limiting action radially that is enclosed within the outer circle of described circular shaft that is fixed in the described casing, between the internal diameter of described hoop external member and the external diameter of described circular shaft certain clearance is arranged, this circular shaft can be made axial float, but does not have rocking radially.

3. the measure and control device of a kind of magnetic suspension bearing according to claim 1 is characterized in that described measuring pressure device is meant the electronic scales of energy measurement and demonstration weight.

4. the measure and control device of a kind of magnetic suspension bearing according to claim 1 is characterized in that described fictitious load spare is meant the weight sign indicating number, that is, and and the weight that weight is suitable.

5. the measure and control device of a kind of magnetic suspension bearing according to claim 1 is characterized in that described electromechanical equipment is meant aerogenerator.