CN107957325A - A kind of impeller high accuracy static mechanical performance simulator - Google Patents

A kind of impeller high accuracy static mechanical performance simulator Download PDF

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Publication number
CN107957325A
CN107957325A CN201610900670.8A CN201610900670A CN107957325A CN 107957325 A CN107957325 A CN 107957325A CN 201610900670 A CN201610900670 A CN 201610900670A CN 107957325 A CN107957325 A CN 107957325A
Authority
CN
China
Prior art keywords
fixture
impeller
blade
mechanical performance
static mechanical
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.)
Pending
Application number
CN201610900670.8A
Other languages
Chinese (zh)
Inventor
王海斗
邢志国
周京
徐滨士
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.)
Armored Infantry Engineering College People's Liberation Army
Original Assignee
Armored Infantry Engineering College People's Liberation Army
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.)
Filing date
Publication date
Application filed by Armored Infantry Engineering College People's Liberation Army filed Critical Armored Infantry Engineering College People's Liberation Army
Priority to CN201610900670.8A priority Critical patent/CN107957325A/en
Priority claimed from US15/784,290 external-priority patent/US10302537B2/en
Publication of CN107957325A publication Critical patent/CN107957325A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts

Abstract

The present invention provides a kind of impeller high accuracy static mechanical performance simulator, including:Rack;The upper fixture being arranged in the rack and lower fixture;The upper fixture and the lower fixture are respectively used to the both ends of the clamping blade, and apply the pulling force of setting to the blade to simulate the centrifugal force suffered by the blade;The upper fixture is provided with pulling force sensor.During analog detection is implemented to the performance of impeller, acted on by static pulling force with simulated air compressor impeller centrifugal force, the military service situation of accurate simulation and evaluation impeller under the effect of high-precision energy.

Description

A kind of impeller high accuracy static mechanical performance simulator
Technical field
The present invention relates to technical field of test equipment, more particularly to a kind of impeller high accuracy static mechanical performance simulator.
Background technology
Impeller is the important component of air compressor, is to ensure air compressor performance, reliability, the weight of durability Want parts.
In the course of work of air compressor, high-speed rotating blade can bear larger centrifugal force, and then be easier to So that blade surface and internal the defects of producing micro-crack.As it can be seen that military service performance of the blade in the case where bearing centrifugal force effect is to leaf The durability of the military service of wheel, reliability are of great significance.
Impeller remanufacture or production process in, the performance test of impeller is subsequently produced impeller in batches with instructing meaning Justice, therefore how simulated air compressor impeller centrifugal force acts on, accurate simulation and evaluation impeller are acted in high-precision energy Under military service situation, become those skilled in the art's technical barrier urgently to be resolved hurrily.
The content of the invention
The object of the present invention is to provide a kind of impeller high accuracy static mechanical performance simulator, with simulated air compressor leaf Take turns the military service situation of centrifugal force effect, accurate simulation and evaluation impeller under the effect of high-precision energy.
To achieve these goals, the present invention provides following technical solution:
A kind of impeller high accuracy static mechanical performance simulator, including:
Rack;
The upper fixture being arranged in the rack and lower fixture;The upper fixture and the lower fixture are respectively used to clamping institute State the both ends of blade, and apply the pulling force of setting to the blade to simulate the centrifugal force suffered by the blade;The upper fixture It is provided with pulling force sensor.
Preferably, the lower fixture includes:
The clamp base being arranged on the erecting bed;
It is arranged in the clamp base, and symmetrical two fixture blocks;Two fixture blocks are consolidated by bolt assembly It is scheduled in the clamp base;The holding chamber for the bottom for being used to clamp the blade is formed between two fixture blocks.
Preferably, further include:
Worm gear mechanism;
The drive gear engaged with the clamp base, the drive gear are arranged on the output of the worm gear mechanism On axis;Driving handle is provided with the worm gear mechanism;The worm gear mechanism is used to drive by the drive gear The dynamic clamp base is rotated to adjust the direction of the holding chamber.
Preferably, the rack includes electric cylinder and bell crank lever;Wherein:
The electric cylinder is arranged at the bottom of the bell crank lever;
The upper fixture is arranged on the top of the bell crank lever, the electric cylinder can promote the bell crank lever so that The upper fixture clamps the top of the blade.
Preferably, the top of the bell crank lever is provided with lifting gear, and the lifting gear can be relative to the right angle The top of lever is lifted to adjust the distance between the upper fixture and the lower fixture.
Preferably, the electric cylinder is GSX series electric cylinders.
Preferably, controller is further included, the controller is connected with the pulling force sensor and the lifting gear, institute Controller is stated to be used to control the lifting gear to rise until the numerical value that the pulling force sensor is detected reaches setting value.
Preferably, further include oscillation system, the oscillation system is arranged in the rack, and for be connected with blade with Drive the blade oscillating.
Impeller high accuracy static mechanical performance simulator provided by the invention, passes through upper fixture, lower fixture and pull sensing Device simulates centrifugal force suffered by blade.During analog detection is implemented to the performance of impeller, by static pulling force with Simulated air compressor impeller centrifugal force acts on, the military service feelings of accurate simulation and evaluation impeller under the effect of high-precision energy Condition.
Brief description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, drawings in the following description are only one described in the present invention A little embodiments, for those of ordinary skill in the art, can also obtain other attached drawings according to these attached drawings.
Fig. 1 is the front view of impeller high accuracy static mechanical performance simulator provided in an embodiment of the present invention, is not shown in figure Show chamber;
Fig. 2 is the side view of Fig. 1, and chamber is shown in figure;
Fig. 3 is the structure diagram of upper fixture provided in an embodiment of the present invention;
Fig. 4 is the side view of Fig. 3;
Fig. 5 is the structure diagram of lower fixture provided in an embodiment of the present invention.
Embodiment
In order to make those skilled in the art more fully understand technical scheme, below in conjunction with attached drawing to this hair It is bright to be further detailed.
Please refer to Fig.1 and Fig. 2, the embodiment of the present invention provides a kind of impeller high accuracy static mechanical performance simulator, right During the performance of impeller implements analog detection, acted on by static pulling force with simulated air compressor impeller centrifugal force, The military service situation of accurate simulation and evaluation impeller under the effect of high-precision energy.
Impeller high accuracy static mechanical performance simulator shown in Fig. 1 and 2 include rack 10, upper fixture 20, lower fixture 30, Chamber 40, pulling force sensor 50.
Wherein, skeleton of the rack 10 as whole impeller high accuracy static mechanical performance simulator, for for other zero Part provides installation foundation.Upper fixture 20 and lower fixture 30 are arranged in rack 10, in general, upper fixture 20 is arranged on the top of rack 10 End, lower fixture 30 are arranged on the erecting bed of rack 10, it is also assumed that being whole impeller high accuracy static mechanical performance simulation dress The workbench put.Upper fixture 20 and lower fixture 30 are respectively used to the both ends of clamping blade 70, respectively top and bottom, upper fixture 20 and lower fixture 30 respectively to blade 70 apply setting pulling force, to simulate the centrifugal force suffered by blade 70, in order to ensure being applied The pulling force added can relatively accurately simulate its suffered centrifugal force in the operating condition, and pulling force biography is provided with upper fixture 20 Sensor 50, pulling force sensor 50, which is used to show, is applied to pulling force on blade 70, and when pulling force is insufficient, pulling force sensor 50 can be with Play the follow-up suggesting effect adjusted again.
Chamber 40 is used for the erecting bed for being arranged on rack 10, and the effect of chamber 40 is to be located on blade 70, To provide the simulated environment of a relative closure.
It is known that the centrifugal force feature that the blade 70 of the impeller under high speed rotation state is subject to is as follows:Centrifugal force Constant magnitude, the direction of centrifugal force determines, i.e., outside along radius of turn.Based on this, the application is using the higher static(al) of precision That is static tensile force simulates the centrifugal force suffered by blade 70.It is right by upper fixture 20 and lower fixture 30 during simulation The pulling force that blade 70 is applied achieve the purpose that static(al) apply.Specifically, can be by adjusting upper fixture 20 and lower fixture 30 Between clamping distance adjust static(al) size, can also be adjusted by the table upper fixture 20 relative to the position of lower fixture 30 The size of static(al).As described above, during above-mentioned adjusting, it can be coordinated by pulling force sensor 50 and realized.
In the present embodiment, the effect of upper fixture 20 and lower fixture 30 is the top and bottom for clamping blade 70, in realization State the species of the clamping device of function have it is a variety of.Please refer to Fig.3 and Fig. 4, the embodiment of the present invention provide a kind of the upper of concrete structure Fixture 20, the upper fixture 20 provided are an integral structure, and top is provided with top hinge hole 201, and bottom is provided with bottom hinge Hole 202 is connect, top hinge hole 201 is hinged by articulated shaft and the top of rack 10, and bottom hinge hole 202 passes through articulated shaft and leaf The top of piece 70 is hinged, and above-mentioned hinged mode causes blade 70, and under by load effect caused by fluid media (medium), energy is micro Swing, and then can more precisely simulate caused swing in 70 course of work of blade, and then can more preferable simulation blade 70 stress scene.Specifically, impeller high accuracy static mechanical performance simulator provided in this embodiment can also include swinging System, the oscillation system are connected with blade 70, and energy active drive blade 70 is swung in appropriate angular range.
Equally, the embodiment of the present invention provides a kind of lower fixture 30 of concrete structure, refer to Fig. 5, the lower fixture provided 30 include 301, two fixture blocks 302 of clamp base and bolt assembly 303.Clamp base 301 is arranged on erecting bed, two fixture blocks 302 symmetries are arranged in clamp base 301, and two fixture blocks 302 are fixed in clamp base 301 by bolt assembly 303, and two The holding chamber for being used for clamping 70 bottom of blade is formed between a fixture block 302.Specifically, two fixture blocks 302 can movably be set In clamp base 301, then realized and fixed by bolt assembly 303, the mobile width that can change holding chamber of two fixture blocks 302 Degree, and then adapt to the blade 70 of different size.
Referring again to Fig. 5, impeller high accuracy static mechanical performance simulator provided in this embodiment can also include snail Worm and gear mechanism 304 and drive gear 305, wherein, drive gear 305 is engaged with clamp base 301, that is to say, that clamp base 301 circumferentially have an engaging tooth, and can be rotated relative to clamp base 301.Drive gear 305 is arranged on worm and gear machine On the output shaft of structure 304, worm gear mechanism 304 is provided with driving handle, operates driving handle to drive worm gear mechanism 304 and then realize that drive gear 305 rotates, the rotation of drive gear 305 can drive clamp base 301 to rotate, and be finally reached energy Adjust the purpose of holding chamber direction.Drive turbine and worm mechanism 304 to implement angle to lower fixture 30 by driving handle to adjust It is whole, control simply, conveniently, while worm gear mechanism 304 has self-locking effect, can ensure the testing position of blade 70. The tiny frictional force for having oil duct to be lubricated, reducing contact surface can be disposed with the surfaces of revolution of clamp base 301, it is easier to Adjust angle.
Referring again to Fig. 1 and 2, a kind of rack 10 of concrete structure is provided in the present embodiment, which includes electronic Cylinder 101 and bell crank lever 102, wherein, electric cylinder 101 is arranged on the bottom of bell crank lever 102, and upper fixture 20 is arranged on right angle thick stick The top of bar 102, electric cylinder 101 can promote the bell crank lever 102 to swing to reach folder to adjust and then pull upper fixture 20 indirectly Tight 70 top of blade, and apply the purpose of pulling force.Bell crank lever 102 can play the mesh for adjusting 20 layout angle of upper fixture and position , meanwhile, by reasonably arrange bell crank lever 102 fulcrum can bell crank lever 102 thrust of electric cylinder 101 is put Greatly, while the transformation of 101 thrust direction of electric cylinder is realized.It is larger in view of 102 stress of bell crank lever, to realize high intensity weight The requirement of amount, the structure design of bell crank lever 102 is weldment by we, and is designed rational floor and gusset and improved right angle thick stick The integral strength of bar 102.In the present embodiment, rack 10 passes through high-precision electrical servo system (electric cylinder) and bell crank lever 102 loading, can realize the accurate loading of static(al).
In the application, electric cylinder 101 is used as power source, can use the GSX series electric cylinders of import.The series electric cylinder Planetary roller screw and rotor are organically combined, planetary roller is evenly distributed with around main leading screw, and accurate machine loads In sleeve rotor, ensure and rotor absolute synchronization.The T-LAM stator-sectional lamination techniques that the series of servo electric cylinder uses can The moment of torsion of higher is persistently exported than conventional motor, there is absolute coil winding, sectionalized stator combines the highest that ensure that motor Can, the effect of motor can be improved, while the hot merit effect of electrical-coil generation can be effectively reduced, eliminate stator end and rotate, utilize Thermo-conductive ceramic substitutes the parts of conventional motors, improves reliability.The electric cylinder 101 is in advanced closed loop servo system at the same time In, speed, thrust and position can be accurately controlled, control accuracy reaches 0.02mm.
Referring again to Fig. 1 and 2, in the present embodiment, the top of bell crank lever 102 can be provided with lifting gear 103, rise Falling unit 103 can be lifted to adjust the distance between upper fixture 20 and lower fixture 30 relative to the top of bell crank lever 102, and then Playing adjusting indirectly, both put on the purpose of 70 upper pulling force of blade.Specifically, lifting gear 103 can use Screw of Worm Gear liter Drop machine, can facilitate the clamping of blade 70 using worm wheel screw rod lifting machine, have compact-sized, light-weight, noiseless, bearing capacity By force, self-locking, the advantages that push rod is anti-rotational, reliability is high, service life is long.At the same time, the lifting moving energy of lifting gear 103 The leveling of auxiliary adjustment bell crank lever 102 and ensure load straight up.
Impeller high accuracy static mechanical performance simulator provided in this embodiment can also include controller, and controller is with drawing Force snesor 50 is connected with lifting gear 103, and controller is used to control lifting gear 103 to rise until the institute of pulling force sensor 50 The numerical value of detection reaches setting value.Specifically, controller can be according to the real-time value of thrust that pulling force sensor 50 is detected with setting Definite value compares, and then controls the start and stop of lifting gear 103.This PID control method can preferably ensure the high accuracy of static(al) Loading.
Some one exemplary embodiments that only the invention has been described by way of explanation above, undoubtedly, for ability The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute The embodiment of description is modified.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as to the present invention The limitation of claims.

Claims (8)

  1. A kind of 1. impeller high accuracy static mechanical performance simulator, it is characterised in that including:
    Rack;
    The upper fixture being arranged in the rack and lower fixture;The upper fixture and the lower fixture are respectively used to the clamping leaf The both ends of piece, and apply the pulling force of setting to the blade to simulate the centrifugal force suffered by the blade;The upper fixture is set There is pulling force sensor.
  2. 2. impeller high accuracy static mechanical performance simulator as claimed in claim 1, it is characterised in that the lower fixture bag Include:
    The clamp base being arranged on the erecting bed;
    It is arranged in the clamp base, and symmetrical two fixture blocks;Two fixture blocks are fixed on by bolt assembly In the clamp base;The holding chamber for the bottom for being used to clamp the blade is formed between two fixture blocks.
  3. 3. impeller high accuracy static mechanical performance simulator as claimed in claim 2, it is characterised in that further include:
    Worm gear mechanism;
    The drive gear engaged with the clamp base, the drive gear are arranged on the output shaft of the worm gear mechanism On;Driving handle is provided with the worm gear mechanism;The worm gear mechanism is used to drive by the drive gear The clamp base is rotated to adjust the direction of the holding chamber.
  4. 4. impeller high accuracy static mechanical performance simulator as claimed in claim 1, it is characterised in that the rack includes electricity Dynamic cylinder and bell crank lever;Wherein:
    The electric cylinder is arranged at the bottom of the bell crank lever;
    The upper fixture is arranged on the top of the bell crank lever, and the electric cylinder can promote the bell crank lever so that described Upper fixture clamps the top of the blade.
  5. 5. impeller high accuracy static mechanical performance simulator as claimed in claim 4, it is characterised in that the bell crank lever Top is provided with lifting gear, and the lifting gear can be lifted relative to the top of the bell crank lever to adjust the upper fixture The distance between described lower fixture.
  6. 6. impeller high accuracy static mechanical performance simulator as claimed in claim 5, it is characterised in that the electric cylinder is GSX series electric cylinders.
  7. 7. impeller high accuracy static mechanical performance simulator as claimed in claim 6, it is characterised in that controller is further included, The controller is connected with the pulling force sensor and the lifting gear, and the controller is used to control the lifting gear Rise until the numerical value that the pulling force sensor is detected reaches setting value.
  8. 8. the impeller high accuracy static mechanical performance simulator as described in any one in claim 1-7, it is characterised in that also Including oscillation system, the oscillation system is arranged in the rack, and for being connected with blade to drive the blade oscillating.
CN201610900670.8A 2016-10-17 2016-10-17 A kind of impeller high accuracy static mechanical performance simulator Pending CN107957325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610900670.8A CN107957325A (en) 2016-10-17 2016-10-17 A kind of impeller high accuracy static mechanical performance simulator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610900670.8A CN107957325A (en) 2016-10-17 2016-10-17 A kind of impeller high accuracy static mechanical performance simulator
US15/784,290 US10302537B2 (en) 2016-10-17 2017-10-16 Impeller high-precision static performance simulation device, testing machine and impeller performance simulation testing method

Publications (1)

Publication Number Publication Date
CN107957325A true CN107957325A (en) 2018-04-24

Family

ID=61954351

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610900670.8A Pending CN107957325A (en) 2016-10-17 2016-10-17 A kind of impeller high accuracy static mechanical performance simulator

Country Status (1)

Country Link
CN (1) CN107957325A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105628371A (en) * 2016-03-22 2016-06-01 燕山大学 Blade fatigue performance tester
CN206399635U (en) * 2016-10-17 2017-08-11 中国人民解放军装甲兵工程学院 A kind of high-precision static mechanical performance analogue means of impeller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105628371A (en) * 2016-03-22 2016-06-01 燕山大学 Blade fatigue performance tester
CN206399635U (en) * 2016-10-17 2017-08-11 中国人民解放军装甲兵工程学院 A kind of high-precision static mechanical performance analogue means of impeller

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Application publication date: 20180424

RJ01 Rejection of invention patent application after publication