CN107269601B - Cantilever rotor floating support device - Google Patents

Cantilever rotor floating support device Download PDF

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Publication number
CN107269601B
CN107269601B CN201710549445.9A CN201710549445A CN107269601B CN 107269601 B CN107269601 B CN 107269601B CN 201710549445 A CN201710549445 A CN 201710549445A CN 107269601 B CN107269601 B CN 107269601B
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CN
China
Prior art keywords
valve
shut
pipeline
oil cylinder
control oil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710549445.9A
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Chinese (zh)
Other versions
CN107269601A (en
Inventor
王腾
张庚云
李建国
樊运平
孙伟
于建华
王赟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiyuan Institute of China Coal Technology and Engineering Group
Shanxi Tiandi Coal Mining Machinery Co Ltd
Original Assignee
Taiyuan Institute of China Coal Technology and Engineering Group
Shanxi Tiandi Coal Mining Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Taiyuan Institute of China Coal Technology and Engineering Group, Shanxi Tiandi Coal Mining Machinery Co Ltd filed Critical Taiyuan Institute of China Coal Technology and Engineering Group
Priority to CN201710549445.9A priority Critical patent/CN107269601B/en
Publication of CN107269601A publication Critical patent/CN107269601A/en
Application granted granted Critical
Publication of CN107269601B publication Critical patent/CN107269601B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5159—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a return line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Eletrric Generators (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

The invention belongs to technical field of mechanical transmission, power to solve fluid-flywheel clutch causes the contilever load on motor shaft big when larger, the technical issues of to influence the motor bearings service life, provide a kind of cantilever rotor floating support device, including permanent magnet, control oil cylinder, check valve, shut-off valve I, shut-off valve II and fuel tank, the permanent magnet is mounted on the piston rod of control oil cylinder, the oil inlet of control oil cylinder is connected by pipeline with the outlet of check valve, the import of check valve is connected by pipeline with one end of shut-off valve I, the other end of shut-off valve I is connected by pipeline with pouring orifice, one end of the shut-off valve II is connected by pipeline with control oil cylinder, the other end is connected by pipeline with fuel tank.The configuration of the present invention is simple can effectively support motor shaft upper cantilever end rotor, can reduce the contilever load on motor shaft, reduce complete machine oscillation, improve motor bearings reliability, prolong the service life.

Description

Cantilever rotor floating support device
Technical field
The invention belongs to technical field of mechanical transmission, and in particular to a kind of cantilever rotor floating support device.
Background technique
Motor-fluid-flywheel clutch-retarder kind of drive is most common driving method in mechanical equipment.In the transmission In structure, the pump impeller of fluid-flywheel clutch is connect by the axle sleeve with keyway with motor output shaft flat key, and pump impeller is as cantilever weight Amount is applied on motor shaft.When Coupling power is larger, for example, two-space fluid coupling, pump impeller rotor is very long, quality compared with Greatly, additional contilever load is formed on motor shaft, influences the motor bearings service life；Meanwhile cantilever pump impeller can also in rotary course Deflection deformation occurs, " open loudspeaker " mode of presentation rotates, make the reduction of pump impeller running accuracy, and bring high vibration problem, from And influence the craftmanship and motor bearings reliability of transmission system.
The method and apparatus for solving above-mentioned technical problem there is no to disclose at present.
Summary of the invention
The present invention is that the power of solution fluid-flywheel clutch causes the contilever load on motor shaft big when larger, to influence electricity The technical issues of machine bearing service life, provides a kind of cantilever rotor floating support device.
The technical solution adopted by the invention is as follows:
A kind of cantilever rotor floating support device, including permanent magnet, control oil cylinder, check valve, shut-off valve I, shut-off valve II And fuel tank, the permanent magnet are mounted on the piston rod of control oil cylinder, are controlled the oil inlet of oil cylinder and are passed through pipeline and check valve Outlet is connected, and the import of check valve is connected by pipeline with one end of shut-off valve I, and the other end of shut-off valve I passes through pipeline It is connected with pouring orifice, one end of the shut-off valve II is connected by pipeline with control oil cylinder, and the other end passes through pipeline and oil Case is connected, and control cylinder piston rod drives permanent magnet to stretch out and close to rotor, and motor drives rotor rotation, the rotor cutting of rotation It cuts the magnetic line of force and generates induced magnetic field, permanent magnetic field and induced magnetic field interact.
The exit of the check valve is provided with accumulator, and the accumulator passes through pipeline and the oil inlet phase for controlling oil cylinder Connection.
The exit of the check valve is additionally provided with pressure gauge and safety valve.
Beneficial effects of the present invention:
1. the configuration of the present invention is simple can effectively support motor shaft upper cantilever end rotor, can reduce on motor shaft Contilever load, reduce complete machine oscillation, improve motor bearings reliability, prolong the service life.
2. the device of the invention takes non-contact type to support motor shaft cantilever end rotor, mechanical friction and mill can avoid Damage, to the additional drag square very little of rotor, and supporting force can be adjusted quantitatively.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
In figure: 1- rotor, 2- permanent magnet, 3- control oil cylinder, 4- check valve, 5- shut-off valve I, 6- pressure gauge, 7- accumulator, 8- shut-off valve II, 9- safety valve, 10- fuel tank.
Specific embodiment
As shown in Figure 1, a kind of cantilever rotor floating support device, including permanent magnet 2, control oil cylinder 3, check valve 4, cut-off Valve I5, shut-off valve II8 and fuel tank 10, the permanent magnet 2 are mounted on the piston rod of control oil cylinder 3, control the oil inlet of oil cylinder 3 It is connected by pipeline with the outlet of check valve 4, the import of check valve 4 is connected by pipeline with one end of shut-off valve I5, is cut Only the other end of valve I5 is connected by pipeline with pouring orifice, and one end of the shut-off valve II8 passes through pipeline and control 3 phase of oil cylinder Connection, the other end are connected by pipeline with fuel tank 10.The exit of the check valve 4 is provided with accumulator 7, the accumulator 7 are connected by pipeline with the oil inlet of control oil cylinder 3, and oil pressure and support force is kept to stablize.The exit of the check valve 4 is also It is provided with pressure gauge 6 and safety valve 9, support force quantitatively can be set and be observed.
The permanent magnet 2 is mounted on the piston rod of control oil cylinder 3, when to control oil cylinder 3 for pressure oil, piston rod band Dynamic permanent magnet 2 stretches out and close to rotor 1.
The check valve 4 and shut-off valve I5 control import oil circuit are opened, while preventing oil liquid adverse current.
The pressure gauge 6 and safety valve 9 are mounted on 4 exit of check valve, 6 display system pressure value of pressure gauge, safety valve 9 Prevent system pressure excessively high.
The accumulator 7 is mounted on 4 exit of check valve, and when system declines because of leak pressure, accumulator can be System repairing and pressure stabilizing.
By piping connection to control oil cylinder 3, one end connected tank 10 beats shut-off valve II8 for the one end the shut-off valve II8 It opens, it can be achieved that system unloaded.
The course of work of the invention is such that opening shut-off valve I5, pressure oil enter control through shut-off valve I5 and check valve 4 Liquefaction cylinder 3, control 3 piston rod of oil cylinder drive permanent magnet 2 to stretch out and close to rotors 1, and motor drives rotor 1 to rotate, and rotation turns Sub 1 cutting magnetic line generates induced magnetic field, and permanent magnetic field interacts with induced magnetic field, generates normal direction Fz and tangential work to rotor 1 Firmly Fm.When the revolving speed of rotor 1 increases to rated speed (1500r/min), normal force Fz reaches design maximum value, and to turning Son 1 plays a supportive role, and tangential force Fm is then up to minimum value, its influence can be ignored.Safety valve is provided in present system 9, when system pressure increases suddenly, more than safety valve setting value when safety valve 9 open, the method between magnet and rotor can be limited To repulsion.Accumulator 7 is set in present system, when the system pressure drops, by accumulator 7 to oil cylinder cavity of resorption repairing.This hair It is additionally provided with shut-off valve II8 in bright system, when system needs off-load, shut-off valve II8 is opened.
The present invention carries out rotor using the normal force that rotor 1 and the magnetic induction effect of the relative motion of permanent magnet 2 generate Floating support realizes non-contacting floating support.
The invention has the characteristics that:
(1) contactless floating support is carried out to rotor using permanent magnet, can avoid mechanical friction and abrasion；
(2) piston with permanent magnet is pushed to support rotor using hydraulic cylinder, hydraulic system is provided with safety valve and unloads Lotus device and accumulator can maintain oil pressure to stablize (guaranteeing the smallest supporting force).
(3) by the maximal support power between the adjustable magnet of regulation safety valve and rotor, and can by pressure gauge Quantitative observation is carried out with supporting force, discovery pressure disappears in operation, i.e., should be again through pouring orifice oiling.
(4) when revolving speed maximum, tangential force very little between magnet and rotor, very to the increased tangential resistance of transmission system It is small.
In conclusion cantilever rotor floating support device of the invention have it is non-contact, without mechanical friction and wear, bearing The advantage that power is adjustable, can quantify, and structure is simple, it is easy to operate.

Claims (3)

1. a kind of cantilever rotor floating support device, it is characterised in that: including permanent magnet (2), control oil cylinder (3), check valve (4), shut-off valve I(5), shut-off valve II(8) and fuel tank (10), the permanent magnet (2) is mounted on the piston rod of control oil cylinder (3) On, the oil inlet of control oil cylinder (3) is connected by pipeline with the outlet of check valve (4), and the import of check valve (4) passes through pipeline Be connected with one end of shut-off valve I(5), shut-off valve I(5) the other end be connected by pipeline with pouring orifice, the shut-off valve II(8 one end) is connected by pipeline with control oil cylinder (3), and the other end is connected by pipeline with fuel tank (10), control oil Cylinder (3) piston rod drives permanent magnet (2) to stretch out and close to rotor (1), and motor drives rotor (1) rotation, and the rotor (1) of rotation is cut It cuts the magnetic line of force and generates induced magnetic field, permanent magnetic field and induced magnetic field interact.
2. a kind of cantilever rotor floating support device according to claim 1, it is characterised in that: the check valve (4) Exit is provided with accumulator (7), and the accumulator (7) is connected by pipeline with the oil inlet of control oil cylinder (3).
3. a kind of cantilever rotor floating support device according to claim 1 or 2, it is characterised in that: the check valve (4) Exit be additionally provided with pressure gauge (6) and safety valve (9).
CN201710549445.9A 2017-07-07 2017-07-07 Cantilever rotor floating support device Active CN107269601B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710549445.9A CN107269601B (en) 2017-07-07 2017-07-07 Cantilever rotor floating support device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710549445.9A CN107269601B (en) 2017-07-07 2017-07-07 Cantilever rotor floating support device

Publications (2)

Publication Number Publication Date
CN107269601A CN107269601A (en) 2017-10-20
CN107269601B true CN107269601B (en) 2019-02-15

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ID=60072446

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Application Number Title Priority Date Filing Date
CN201710549445.9A Active CN107269601B (en) 2017-07-07 2017-07-07 Cantilever rotor floating support device

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CN (1) CN107269601B (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026345U (en) * 1983-07-29 1985-02-22 トキコ株式会社 Hydro-pneumatic suspension
PL159097B1 (en) * 1987-08-28 1992-11-30 Hydraulic powering unit for freezers
JPH0662269B2 (en) * 1989-04-21 1994-08-17 株式会社神戸製鋼所 Displacement restraint device for mobile crane
CN2702080Y (en) * 2004-07-22 2005-05-25 招慧霞 Magnetic suspension pump
CN201934324U (en) * 2011-01-20 2011-08-17 扬州大学 Permanent magnetic levitation axial electric pump
CN102661345A (en) * 2012-05-10 2012-09-12 深圳市泰玛风光能源科技有限公司 Magnetic suspension damping device
CN205304478U (en) * 2015-11-25 2016-06-08 河北新四达电机股份有限公司 Directly drive formula ball mill motor elastic support base for system
CN106640966B (en) * 2017-02-17 2019-03-22 燕山大学 A kind of passive transverse bearing of magnetic liquid dual suspension master
CN207018276U (en) * 2017-07-07 2018-02-16 中国煤炭科工集团太原研究院有限公司 Cantilever rotor floating support device

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