CN107957327A - A kind of statics loading device - Google Patents

A kind of statics loading device Download PDF

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Publication number
CN107957327A
CN107957327A CN201610903073.0A CN201610903073A CN107957327A CN 107957327 A CN107957327 A CN 107957327A CN 201610903073 A CN201610903073 A CN 201610903073A CN 107957327 A CN107957327 A CN 107957327A
Authority
CN
China
Prior art keywords
fixture
blade
loading
statics
bell crank
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
CN201610903073.0A
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Chinese (zh)
Inventor
邢志国
王海斗
周京
刘柯景
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 CN201610903073.0A priority Critical patent/CN107957327A/en
Publication of CN107957327A publication Critical patent/CN107957327A/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 statics loading device, for carrying out statics loading to blade in the vane simulated test process to air compressor;Including:The upper fixture being arranged in 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;Electric cylinder and bell crank lever are additionally provided with the rack, the top of the bell crank lever is provided with lifting gear, and the lifting gear can be lifted relative to the top of the bell crank lever to adjust the distance between the upper fixture and the lower fixture;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 to rise until the numerical value that the pulling force sensor is detected reaches setting value.

Description

A kind of statics loading device
Technical field
The present invention relates to technical field of test equipment, more particularly to a kind of statics loading device.
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 impeller can do work flow media (i.e. air), relatively Answer, flow media can produce reaction force in impeller passage to the blade of impeller, and then be easier to cause blade generation tired Strain bad.Therefore, load caused by flow media is to remanufacture the important composition of service load during the secondary military service of impeller Part.In addition, high-speed rotating blade can bear larger centrifugal force, and then be easier to so that blade surface and internal production The defects of raw micro-crack.As it can be seen that the durability of military service performance military service to impeller of the blade in the case where bearing centrifugal force effect, reliable Property is of great significance.
Impeller remanufacture or production process in, the performance test of impeller is subsequently produced impeller in batches with instructing meaning Justice, but current manufacturer centrifugal force is mainly applied using special equipment come simulate under blade working state by the field of force Scape, general mistake is acted on by static pulling force come the centrifugal force of simulated air compressor impeller, in order to establish impeller in centrifugal force Static mechanical model under effect, the military service situation of accurate simulation and evaluation impeller under high-precision Static behavior is, it is necessary to essence Really control the static tensile force applied to blade.
Therefore, the static tensile force applied to blade how is accurately controlled, it is urgently to be resolved hurrily to become those skilled in the art Technical barrier.
The content of the invention
The object of the present invention is to provide a kind of statics loading device, can accurately control the static drawing applied to blade Power, to establish the static mechanical model of impeller under the action of the centrifugal force, accurate simulation and evaluation impeller are in high-precision static(al) Military service situation under effect.
To achieve these goals, the present invention provides following technical solution:
A kind of statics loading device, for carrying out static(al) to blade in the vane simulated test process to air compressor Learn loading;Including:
The upper fixture being arranged in 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;
Electric cylinder and bell crank lever are additionally provided with the rack, 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 the upper folder Tool clamps the top of the blade;The top of the bell crank lever is provided with lifting gear, and the lifting gear can be relative to institute The top for stating bell crank lever is lifted to adjust the distance between the upper fixture and the lower fixture;
Controller is further included, the controller is connected with the pulling force sensor and the lifting gear, the control Device is used to control the lifting gear to rise until the numerical value that the pulling force sensor is detected reaches setting value.
Preferably, the electric cylinder is GSX series electric cylinders.
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, further include oscillation system, the oscillation system is arranged in the rack, and for be connected with blade with Drive the blade oscillating.
Statics loading device provided by the invention is by controlling the pulling force sensor, the bell crank lever that are set in upper fixture The lifting gear of upper setting, can accurately control the static tensile force applied to blade, be acted on to establish impeller in centrifugal force Under static mechanical model, military service situation under high-precision Static behavior of accurate simulation and evaluation impeller.
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 statics loading device provided in an embodiment of the present invention, and chamber is not shown in figure;
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 provide a kind of statics loading device, can accurately control to leaf The static tensile force that piece applies, to establish the static mechanical model of impeller under the action of the centrifugal force, accurate simulation and evaluation leaf Take turns the military service situation under high-precision Static behavior.
Statics loading device shown in Fig. 1 and 2 includes rack 10, upper fixture 20, lower fixture 30, pulling force sensor 50.
Wherein, skeleton of the rack 10 as whole statics loading device, for providing installation foundation for other parts. 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, lower fixture 30 is set On the erecting bed of rack 10, it is also assumed that being the workbench of whole statics loading device.Upper fixture 20 and lower fixture 30 The both ends of clamping blade 70 are respectively used to, are respectively top and bottom, upper fixture 20 and lower fixture 30 apply to blade 70 respectively The pulling force of setting, to simulate the centrifugal force suffered by blade 70, in order to ensure the pulling force applied can relatively accurately simulate it Suffered centrifugal force in the operating condition, pulling force sensor 50 is provided with upper fixture 20, and pulling force sensor 50 is used to show The pulling force being applied on blade 70, when pulling force is insufficient, pulling force sensor 50 can 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.Air feed system 60 is arranged in rack 10, and is connected with chamber 40, air feed system System 60 is divulged information into chamber 40, so that airflow function is finally reached simulation blade on the blade 70 in chamber 40 The purpose of load caused by 70 in running order lower suffered flow medias.
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.
By described above, statics loading device provided in an embodiment of the present invention can pass through 60 He of air feed system Load caused by the fluid media (medium) suffered by blade 70 is simulated in chamber 40, passes through upper fixture 20, lower fixture 30 and pulling force Sensor 50 simulates centrifugal force suffered by blade.During analog detection is implemented to the performance of blade, the present embodiment carries The statics loading device of confession can be at the same time to the simulation in terms of blade implementation above two, and then simulation precision can be improved.With this Meanwhile to the simulated experiment of two kinds of stressing conditions of blade, it can more meet the true stressing conditions of blade, and then experiment effect can be improved Fruit.
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, statics loading device provided in this embodiment can also include oscillation system, it is described to swing system System is 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, statics loading device provided in this embodiment can also include 304 He of worm gear mechanism Drive gear 305, wherein, drive gear 305 is engaged with clamp base 301, that is to say, that clamp base 301 circumferentially has Engaging tooth, and can be rotated relative to clamp base 301.Drive gear 305 is arranged on the output shaft of worm gear mechanism 304 On, worm gear mechanism 304 is provided with driving handle, and operation driving handle drives to drive worm gear mechanism 304 and then realize Moving gear 305 rotates, and the rotation of drive gear 305 can drive clamp base 301 to rotate, and holding chamber direction can be adjusted by being finally reached Purpose.Drive turbine and worm mechanism 304 to implement angle to lower fixture 30 by driving handle to be adjusted, control is simple, side Just, while worm gear mechanism 304 has self-locking effect, can ensure the testing position of blade 70.In the rotation of clamp base 301 Turn that the tiny frictional force for having oil duct to be lubricated, reducing contact surface can be disposed with face, 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.
Statics loading device provided in this embodiment can also include controller, controller and pulling force sensor 50 and liter Falling unit 103 is connected, and controller is used to control lifting gear 103 to rise until the numerical value that pulling force sensor 50 is detected reaches Setting value.Specifically, controller can be according to the real-time value of thrust that pulling force sensor 50 is detected compared with setting value, and then control The start and stop of lifting gear 103 processed.This PID control method can preferably ensure the high accuracy loading of static(al).
Air feed system 60 implements active force to drying within chamber 40 to the blade in chamber 40, to simulate Stressing conditions when blade 70 works in air compressor inner cavity.
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 (5)

  1. A kind of 1. statics loading device, for carrying out statics to blade in the vane simulated test process to air compressor Loading;It is characterised in that it includes:
    The upper fixture being arranged in rack and lower fixture;The upper fixture and the lower fixture are respectively used to the clamping blade Both ends, 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 drawing Force snesor;
    Electric cylinder and bell crank lever are additionally provided with the rack, the electric cylinder is arranged at the bottom of the bell crank lever;It is described Upper fixture is arranged on the top of the bell crank lever, and the electric cylinder can promote the bell crank lever so that the upper fixture is pressed from both sides The top of the tight blade;The top of the bell crank lever is provided with lifting gear, and the lifting gear can be relative to described straight The top of angle lever is lifted to adjust the distance between the upper fixture and the lower fixture;
    Controller is further included, the controller is connected with the pulling force sensor and the lifting gear, and the controller is used Rise in the control lifting gear until the numerical value that the pulling force sensor is detected reaches setting value.
  2. 2. statics loading device as claimed in claim 1, it is characterised in that the electric cylinder is GSX series electric cylinders.
  3. 3. statics loading device as claimed in claim 1, it is characterised in that 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 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.
  4. 4. statics loading device as claimed in claim 3, 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.
  5. 5. the statics loading device as described in any one in claim 1-4, it is characterised in that oscillation system is further included, The oscillation system is arranged in the rack, and for being connected with blade to drive the blade oscillating.
CN201610903073.0A 2016-10-17 2016-10-17 A kind of statics loading device Pending CN107957327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610903073.0A CN107957327A (en) 2016-10-17 2016-10-17 A kind of statics loading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610903073.0A CN107957327A (en) 2016-10-17 2016-10-17 A kind of statics loading device

Publications (1)

Publication Number Publication Date
CN107957327A true CN107957327A (en) 2018-04-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610903073.0A Pending CN107957327A (en) 2016-10-17 2016-10-17 A kind of statics loading device

Country Status (1)

Country Link
CN (1) CN107957327A (en)

Citations (1)

* 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

Patent Citations (1)

* 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

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Application publication date: 20180424

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