CN114705571B - Testing device for impact resistance of turbine blade - Google Patents
Testing device for impact resistance of turbine blade Download PDFInfo
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- CN114705571B CN114705571B CN202210633609.7A CN202210633609A CN114705571B CN 114705571 B CN114705571 B CN 114705571B CN 202210633609 A CN202210633609 A CN 202210633609A CN 114705571 B CN114705571 B CN 114705571B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/317—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/001—Impulsive
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention discloses a testing device for impact resistance of a turbine blade, and relates to the technical field of testing equipment for a turbine unit in a structure. The automatic waste collecting device comprises an installation mechanism, an angle adjusting mechanism, a plurality of driving mechanisms and an automatic waste collecting mechanism, wherein the angle adjusting mechanism is connected to the middle part in the installation mechanism, the center positions of the upper end and the lower end of the angle adjusting mechanism are connected with the plurality of driving mechanisms, and the automatic waste collecting mechanism is arranged at the lower parts of two sides of the angle adjusting mechanism; the output end is the angle sensor setting that cup joints on the accommodate motor that angle adjustment mechanism includes, and angle sensor upper end swing joint has the alignment jig. The blade impact resistance testing device comprises a blade body, a blade tail and a blade tail.
Description
Technical Field
The invention belongs to the technical field of testing equipment for a steam turbine composition structure, and particularly relates to a testing device for impact resistance of a steam turbine blade.
Background
The steam turbine is also called as a steam turbine engine, and is a rotary steam power device.A high-temperature high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates and does work outwards. The steam turbine is the main equipment of modern thermal power plant, also is used in metallurgical industry, chemical industry, naval vessel power device, and the blade belongs to the constitution mechanism of steam turbine, and it needs to carry out the impact resistance test processing before production use.
Through retrieval, the Chinese granted patent No. CN103743556A discloses a test device for a turbine blade with a shroud ring and a boss gilding structure, which comprises a test bench, a blade heel fixing device, two sets of loading devices, an excitation device and a measuring device; the blade root fixing device is fixed on a bottom plate of the test bed; the loading devices are supported and fixed on the slotted holes of the side plates through two loading discs, wherein one set of loading device is used for providing circumferential torque for the shroud band of the turbine blade, and the other set of loading device is used for providing circumferential torque for the boss gold drawing of the turbine blade; the vibration exciter is fixed on the slotted hole of the side plate through the vertical plates of the two vibration exciter supports; the measuring device is fixed on the test bench. The invention relates to a testing device for a steam turbine blade with a shroud and a boss gilding structure, which can be used for simulating the measurement of steam turbine blades with shroud and boss gilding structures of different lengths under the actual operating condition, and lays a foundation for further development of the steam turbine blade with the shroud and the boss gilding structure.
By way of retrieval, chinese patent application CN111339700A, discloses a fatigue damage assessment method, apparatus and storage medium for electric turbine blades, the method comprising: acquiring three-dimensional structure data of a nuclear turbine blade, and establishing a three-dimensional structure model of the nuclear turbine blade according to the three-dimensional data; carrying out simulation analysis on the three-dimensional structure model to obtain the maximum elastic alternating stress and the maximum alternating stress position of the fatigue damage; formulating a Barkhausen noise calibration curve based on the maximum elastic alternating stress and material performance parameters of the nuclear turbine blade; testing the Barkhausen noise signal of the blade of the nuclear turbine according to the maximum alternating stress position; and determining the fatigue damage of the blade of the nuclear turbine according to the Barkhausen noise calibration curve and the Barkhausen noise signal. The scheme provided by the application can accurately determine the fatigue damage of the blade of the nuclear turbine.
However, the following disadvantages still exist in the practical use:
1. the existing blade impact resistance testing device drives a multi-impact structure to carry out the impact resistance testing of the blade through a plurality of driving mechanisms, so that the occupied space is large, the installation and the disconnection are complicated, and the use effect is influenced;
2. when the existing testing device for the impact resistance of the blade is used for testing the impact resistance of the blade, the testing processing of a single angle is difficult to obtain the testing data of multiple positions of the blade, and the testing accuracy is influenced;
3. the testing arrangement of current blade impact resistance force is carrying out the detection back of blade, and unqualified blade need be passed through the manual work and is continuously got the material and handle at the scene, occupies the manpower, can not satisfy the user demand.
Therefore, the existing testing device for the impact resistance of the turbine blade cannot meet the requirement in practical use, so that an improved technology is urgently needed in the market to solve the problem.
Disclosure of Invention
The invention aims to provide a testing device for impact resistance of a turbine blade, which solves the problems that the existing testing device for the impact resistance of the blade is large in occupied space, complex in installation and disconnection and influences use effect due to the fact that a plurality of driving mechanisms, an angle adjusting mechanism and an autonomous waste collecting mechanism are arranged, and the testing device for the impact resistance of the blade is used for driving a plurality of impact structures to test the impact resistance of the blade.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a testing device for impact resistance of a turbine blade, which comprises an installation mechanism, an angle adjusting mechanism, a multi-drive mechanism and an autonomous waste collecting mechanism, wherein the angle adjusting mechanism is connected to the middle part in the installation mechanism, the multi-drive mechanism is connected to the central positions of the upper end and the lower end of the angle adjusting mechanism, and the autonomous waste collecting mechanism is arranged at the lower parts of the two sides of the angle adjusting mechanism;
the angle adjusting mechanism comprises an adjusting motor, wherein the upper output end of the adjusting motor is in a sleeved angle sensor arrangement, the upper end of the angle sensor is movably connected with an adjusting frame, and a convex column in the middle of the upper portion of the adjusting frame is sleeved in a shaft seat in the middle section of the top of the installing mechanism.
Furthermore, the multi-driving mechanism comprises support plates welded at the front end and the rear end of the adjusting frame, main chain wheels are sleeved at the end parts of the inner side output ends of the driving motors penetrating through the lower middle parts of the outer sides of the support plates, and the main chain wheels are connected through chain transmission.
Based on the technical characteristics, the support plate is used for carrying out structure bearing on the driving motor connected with the main chain wheel, the driving motor is used for driving the main chain wheel to operate, the driven chain wheel is driven to rotate through the rotating chain, and the multi-impact mechanism is used for driving the multi-impact mechanism to perform impact force resistance testing on the blade.
Further, the support bottom end portion through connection that autonomic garbage collection mechanism includes has the pneumatic cylinder, and output swing joint has last U type frame on the pneumatic cylinder, go up U type frame outside upper portion and be inlayed photoelectric sensor setting, and go up the inboard output swing joint of telescopic link that U type frame outside end portion runs through and have the collecting plate.
Based on above-mentioned technical characteristics, exert ascending power to last U type frame by the pneumatic cylinder to drive the collecting plate and carry out gradual work that shifts up, at this moment, accessible photoelectric sensor carries out the detection of blade test, and simultaneously, when detecting out unqualified product, the power of pushing forward is applyed to the collecting plate through the telescopic link, collects to it and accepts.
Further, both sides middle part is the equidistance in the alignment jig and is connected with impact mechanism, and the inner rotation of a set of bearing that impact mechanism includes is connected with the axostylus axostyle, the impact piece has been cup jointed at the axostylus axostyle middle part, and the axostylus axostyle end cup joints a set of sprocket from.
Based on the technical characteristics, the shaft rod connected with the driven chain wheel and the impact block is received by the bearing, the impact resistance test of the blade is carried out through the impact block, and the driven motor power is received through the meshed connection between the driven chain wheel and the chain.
Further, the middle part of the upper end of the mounting frame, which comprises the mounting mechanism, is connected with an end block through an upper opening frame, the end parts of the two sides of the end block are arranged in penetrating screw holes, and reinforcing plates are connected to the front end part and the rear end part of the mounting frame in a threaded mode.
Based on the technical characteristics, the mounting frame diagonal adjusting mechanism and the supporting mechanism are used for carrying out external bearing, the end block is primarily connected through the upper opening frame and secondarily connected through the screw holes through the external bolts, and meanwhile, the reinforcing plate is used for reinforcing the external structure of the mounting frame.
Further, reinforcing plate surface upper portion swing joint has anticollision buffer gear, and the pillar that anticollision buffer gear includes is connected in the recess on reinforcing plate surface upper portion through the lug damping in back middle part, the front end has the pillar through buffer spring connection in the pillar, and the pillar front end is connected with the contact plate.
Based on above-mentioned technical characteristics, by being connected of structure between lug and recess, carry out structural connection to crashproof buffer gear, and accept the pillar that is connected with the contact plate by buffer spring through the branch pipe, when the device takes place to empty, contact plate and ground contact, at this moment, buffer spring atress deformation to exert reverse effort when resumeing deformation, carry out the buffering to the atress.
Further, the inboard middle part equidistance of reinforcing plate is connected with fixture, and the centre gripping motor equidistance that fixture includes runs through the setting of reinforcing plate middle part, there is the grip block centre gripping motor inboard output pivoted holding frame upper end through guide rail sliding connection, and the inboard output of the electric putter that the guide rail tip runs through and grip block outside upper portion swing joint.
Based on the technical characteristics, the electric push rod applies push-pull force to the clamping blocks for adjusting the distance between the clamping blocks so as to clamp and position blades of different specifications, and the clamping motor applies rotating force to the clamping frame so as to adjust the longitudinal angle of the clamping frame, so that the blades can be easily loaded and unloaded.
Further, mounting bracket bottom end portion is connected with supporting mechanism, and supporting mechanism is including being a set of strut of central symmetry, the damping of support inner extends into strut outer end middle part, and middle part welded connection has the kicking block at the bottom of the strut.
Based on the technical characteristics, the bracket is positioned and supported by the support frame, the support block is supported by the middle part of the bottom, and the support block is contacted with the ground to support and position the device.
Furthermore, the middle part of the inner end of the support frame is connected with a moving mechanism in a damping mode, the lower part of the inner side of the lower U-shaped frame, which is included by the moving mechanism, is rotatably connected with a roller, and rollers are sleeved in the middle of the roller at equal intervals.
Based on the technical characteristics, the lower part of the inner side of the lower U-shaped frame supports the roller connected with the roller, and the roller is contacted with the ground and is pushed to move.
The invention has the following beneficial effects:
1. the multi-drive mechanism comprises a main chain wheel connected to the end of the inner side output end of the drive motor, the chain wheels are in chain transmission connection through chains, a driven chain wheel connected to the end of a shaft rod of the impact mechanism is in meshing connection with the chains, and the drive motor drives the chains to rotate and simultaneously drives the plurality of driven chain wheels to rotate so as to drive the multi-impact mechanism.
2. According to the invention, the angle adjusting mechanism is arranged, so that the multi-drive structure is connected and the angle adjustment of the impact structure can be carried out at the same time, so as to carry out the impact force resistance test of the blade at multiple positions.
3. According to the invention, the automatic waste collecting mechanism is arranged, so that the detected waste is automatically collected and processed, the labor cost is reduced, the intelligence of the device is improved, specifically, the upper part of the outer side of the upper U-shaped frame of the automatic waste collecting mechanism is embedded with the photoelectric sensor, the shape of the outer surface of the detected blade can be detected, when the blade is broken in impact force resistance detection, the detection data of the photoelectric sensor is received by the outer control end, at the moment, the outer control end controls the hydraulic cylinder, so that the collecting plate is in a proper position, and the collecting plate is pushed by the telescopic rod, so that the waste can be automatically collected.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of the connection of the angle adjustment mechanism, the multi-drive mechanism and the impact mechanism of the present invention;
FIG. 3 is a schematic view of a multi-drive mechanism of the present invention;
FIG. 4 is a schematic view of the connection of the support mechanism and the autonomous garbage collection mechanism of the present invention;
FIG. 5 is a schematic view of the connection between the supporting mechanism and the moving mechanism according to the present invention;
FIG. 6 is a schematic view of an impact mechanism of the present invention;
FIG. 7 is a schematic view of a clamping mechanism of the present invention;
FIG. 8 is a schematic view of the connection between the reinforcing plate and the crash cushion according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
100. an installation mechanism; 110. a mounting frame; 120. an upper opening frame; 130. an end block; 140. a reinforcing plate; 200. an angle adjusting mechanism; 210. an adjusting bracket; 220. adjusting the motor; 230. a shaft seat; 300. a multi-drive mechanism; 310. a support plate; 320. a drive motor; 330. a main sprocket; 340. a chain; 400. an autonomous waste collection mechanism; 410. a support; 420. a hydraulic cylinder; 430. an upper U-shaped frame; 440. a telescopic rod; 450. a collection plate; 500. an impact mechanism; 510. a bearing; 520. a shaft lever; 530. an impact block; 540. a slave sprocket; 600. a clamping mechanism; 610. a clamping motor; 620. a clamping frame; 630. a guide rail; 640. a clamping block; 650. an electric push rod; 700. a support mechanism; 710. a support frame; 720. a support block; 800. a moving mechanism; 810. a lower U-shaped frame; 820. a roller; 830. a roller; 900. an anti-collision buffer mechanism; 910. a branch pipe; 920. a buffer spring; 930. a pillar; 940. a contact plate.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-8, the present invention is a testing apparatus for impact resistance of a steam turbine blade, including an installation mechanism 100, an angle adjusting mechanism 200, a multi-driving mechanism 300 and an autonomous waste collecting mechanism 400, wherein the angle adjusting mechanism 200 is connected to the middle part of the installation mechanism 100, the multi-driving mechanism 300 is connected to the central position of the upper and lower ends of the angle adjusting mechanism 200, and the autonomous waste collecting mechanism 400 is disposed at the lower part of both sides of the angle adjusting mechanism 200;
the upper output end of an adjusting motor 220 included in the angle adjusting mechanism 200 is arranged in a sleeved angle sensor, the upper end of the angle sensor is movably connected with an adjusting frame 210, and a convex column in the middle of the adjusting frame 210 is sleeved in a shaft seat 230 in the middle section of the top in the installation mechanism 100;
the multi-driving mechanism 300 comprises support plates 310 welded at the front and rear ends of the adjusting frame 210, and the end of the inner side output end of a driving motor 320 penetrating through the lower middle part of the outer side of the support plates 310 is sleeved with a main chain wheel 330, and the main chain wheels 330 are in chain transmission connection through a chain 340;
the bottom end of the bracket 410 of the autonomous waste collecting mechanism 400 is connected with a hydraulic cylinder 420 in a penetrating way, the upper output end of the hydraulic cylinder 420 is movably connected with an upper U-shaped frame 430, the upper part of the outer side of the upper U-shaped frame 430 is provided with a photoelectric sensor which is embedded, and the inner output end of a telescopic rod 440, which is connected with the outer side end of the upper U-shaped frame 430 in a penetrating way, is movably connected with a collecting plate 450, so that the device is used specifically;
firstly, inserting the inner end of the autonomous waste collecting mechanism 400 into the bracket 710, controlling the hydraulic cylinder 420 by the outer control end at the moment, contacting the bottom end of the hydraulic cylinder 420 with the ground in an opposite direction, applying an upward force to the device by the hydraulic cylinder 420 to enable the device to be lifted to a certain height, inserting the upper end of the moving mechanism 800 into the inner end of the bracket 710 at the moment, repeating the opposite steps to enable the roller 830 to be contacted with the ground, and moving the position of the roller by applying a pushing force to the device;
then, after the device moves to a designated position, the reverse step is applied to enable the supporting blocks 720 to be contacted with the ground again, at the moment, the blade to be tested is placed between the clamping blocks 640, the external control end controls the electric push rod 650, and the electric push rod 650 applies a pushing force to the clamping blocks 640 to clamp and position the blade;
then, the external control end controls the driving motor 320, at this time, the driving motor 320 drives the main chain wheel 330 to drive the auxiliary chain wheel 540 by the chain 340 for operation, to drive a large number of impact blocks 530 for rotation, the rotating impact blocks 530 are used to perform an impact resistance test process on the blade, when the impact resistance of the blade is detected, the autonomous waste collecting mechanism 400 is separated from the supporting frame 710, at the moment, the hydraulic cylinder 420 applies upward force to the collecting plate 450, the photoelectric sensor monitors the blade test data, when the unqualified blades are monitored, the clamping motor 610 applies a rotating force to the clamping frame 620 to enable the clamping frame 620 to be parallel to the ground, meanwhile, the telescopic rod 440 applies a pushing force to the collecting plate 450, the electric push rod 650 applies a loose force to the clamping block 640, and the unqualified products are received through the collecting plate 450;
finally, when the device is carelessly toppled, the contact plate 940 is in contact with the ground in advance and applies a pushing force to the buffer spring 920, and the buffer spring 920 is stressed to deform and applies a reverse force to the stress when the deformation is recovered so as to buffer and absorb the stress.
As shown in fig. 1, the middle part of the upper end of the mounting frame 110 included in the mounting mechanism 100 is connected with an end block 130 through an upper opening frame 120, the end parts of the two sides of the end block 130 are arranged in a penetrating screw hole, and the front end part and the rear end part of the mounting frame 110 are in threaded connection with a reinforcing plate 140;
specifically, when the mounting mechanism 100 is used, the reinforcing plates 140 are placed at the front and rear end portions of the mounting frame 110, and the bolts are tightened at predetermined positions, and at this time, the end block 130 is placed in the upper opening frame 120, and the outer bolts are tightened in the screw holes while applying a downward force.
As shown in fig. 4-8, the impact mechanisms 500 are connected to the middle portions of two sides of the adjusting frame 210 at equal intervals, the inner ends of a set of bearings 510 included in the impact mechanisms 500 are rotatably connected with a shaft rod 520, the middle portion of the shaft rod 520 is sleeved with an impact block 530, and the end portion of the shaft rod 520 is sleeved with a set of driven sprockets 540;
specifically, when the impact mechanism 500 is used, when the driving motor 320 drives the main sprocket 330 to rotate, the driven sprocket 540 engaged with the chain 340 is stressed to rotate, at this time, the rotated driven sprocket 540 drives the shaft rod 520 to rotate, and the impact block 530 is driven to perform an impact resistance test on the blade;
the upper part of the outer surface of the reinforcing plate 140 is movably connected with an anti-collision buffer mechanism 900, a branch pipe 910 included in the anti-collision buffer mechanism 900 is connected in a groove in the upper part of the outer surface of the reinforcing plate 140 through a bump damping at the middle rear part, the front end in the branch pipe 910 is connected with a strut 930 through a buffer spring 920, and the front end of the strut 930 is connected with a contact plate 940;
specifically, when the anti-collision buffer mechanism 900 is used, the bump at the rear part of the branch pipe 910 is connected to the groove at the upper part of the outer surface of the reinforcing plate 140 in a damping manner, at this time, when the device is toppled, the contact plate 940 is in contact with the ground in advance, the buffer spring 920 is stressed and deformed, and a reverse force is applied to the stress when the deformation is recovered, so that the stressed buffer and shock absorption are performed;
the middle part of the inner side of the reinforcing plate 140 is equidistantly connected with clamping mechanisms 600, clamping motors 610 included in the clamping mechanisms 600 are equidistantly arranged to penetrate through the middle part of the reinforcing plate 140, the upper ends of clamping frames 620 rotating at the output ends of the inner sides of the clamping motors 610 are slidably connected with clamping blocks 640 through guide rails 630, and the output ends of the inner sides of electric push rods 650 penetrating through the end parts of the guide rails 630 are movably connected with the upper parts of the outer sides of the clamping blocks 640;
specifically, when the clamping mechanism 600 is used, when the blade is placed on the inner side of the clamping block 640, the outer control end controls the electric push rod 650, the electric push rod 650 applies an inward pushing force to the clamping block 640 to clamp the blade, and when the blade is detected to be unqualified, the clamping motor 610 applies a rotating force to the clamping frame 620 to enable the clamping frame 620 to be in a state of being parallel to the ground and to be received through the collecting plate 450;
the bottom end part of the mounting frame 110 is connected with a supporting mechanism 700, the supporting mechanism 700 comprises a group of supporting frames 710 which are centrosymmetric, the inner end of the bracket 410 extends into the middle part of the outer end of the supporting frame 710 in a damping manner, and the middle part of the bottom of the supporting frame 710 is connected with a supporting block 720 in a welding manner;
specifically, when the supporting mechanism 700 is used, the inner end of the bracket 410 is inserted into the outer end of the middle cavity of the supporting frame 710, the inner end of the cavity is connected to the moving mechanism 800, and meanwhile, the bottom end face of the supporting block 720 is placed in contact with the ground;
the middle part of the inner end of the supporting frame 710 is connected with a moving mechanism 800 in a damping manner, the lower part of the inner side of a lower U-shaped frame 810 included by the moving mechanism 800 is rotatably connected with a rolling shaft 820, and the middle part of the rolling shaft 820 is sleeved with a roller 830 at equal intervals;
specifically, when the moving mechanism 800 is used, after the height of the device is raised by the hydraulic cylinder 420, the upper end of the lower U-shaped frame 810 is inserted into the inner end of the supporting frame 710, at this time, the hydraulic cylinder 420 is contracted, so that the roller 830 is in contact with the ground, and at this time, the device is moved by applying a pushing force to the device.
The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made to the technical solutions described in the above embodiments, and to some of the technical features thereof, are included in the scope of the present invention.
Claims (7)
1. A testing arrangement for turbine blade is able to bear or endure impact force, includes installation mechanism (100), angle adjustment mechanism (200), many actuating mechanism (300) and autonomic garbage collection mechanism (400), its characterized in that: the middle part in the installation mechanism (100) is connected with an angle adjusting mechanism (200), the center positions of the upper end and the lower end of the angle adjusting mechanism (200) are connected with a multi-driving mechanism (300), and the lower parts of two sides of the angle adjusting mechanism (200) are provided with an automatic waste collecting mechanism (400);
the upper output end of an adjusting motor (220) of the angle adjusting mechanism (200) is arranged in a sleeved angle sensor, the upper end of the angle sensor is movably connected with an adjusting frame (210), and a convex column in the middle of the upper part of the adjusting frame (210) is sleeved in a shaft seat (230) in the middle section of the inner top of the mounting mechanism (100);
the multi-drive mechanism (300) comprises support plates (310) welded at the front end and the rear end of the adjusting frame (210), a main chain wheel (330) is sleeved at the end part of the inner side output end of a drive motor (320) penetrating through the lower middle part of the outer side of each support plate (310), and the main chain wheels (330) are in chain transmission connection through a chain (340);
the middle parts of two sides in the adjusting frame (210) are connected with the impact mechanisms (500) at equal intervals, the inner ends of a group of bearings (510) included in the impact mechanisms (500) are rotatably connected with the shaft levers (520), the middle parts of the shaft levers (520) are sleeved with the impact blocks (530), and the end parts of the shaft levers (520) are sleeved with a group of driven chain wheels (540).
2. The device for testing the impact resistance of the steam turbine blade according to claim 1, wherein the autonomous waste collecting mechanism (400) comprises a support (410), a hydraulic cylinder (420) is connected to the bottom end of the support through penetrating, an upper U-shaped frame (430) is movably connected to an upper output end of the hydraulic cylinder (420), the upper portion of the outer side of the upper U-shaped frame (430) is provided with a inlaid photoelectric sensor, and a collecting plate (450) is movably connected to an inner output end of a telescopic rod (440) through which the outer end of the upper U-shaped frame (430) penetrates.
3. The device for testing the impact resistance of the steam turbine blade according to claim 2, wherein the mounting mechanism (100) comprises a mounting frame (110), an end block (130) is connected to the middle of the upper end of the mounting frame (110) through an upper opening frame (120), the end parts of the two sides of the upper end of the end block (130) are arranged in threaded holes penetrating through the mounting frame, and reinforcing plates (140) are in threaded connection with the front end and the rear end of the mounting frame (110).
4. The device for testing the impact resistance of the steam turbine blade according to claim 3, wherein the upper part of the outer surface of the reinforcing plate (140) is movably connected with a crash cushion mechanism (900), a branch pipe (910) included in the crash cushion mechanism (900) is connected in a groove in the upper part of the outer surface of the reinforcing plate (140) in a damping mode through a convex block in the middle rear part, a strut (930) is connected to the inner front end of the branch pipe (910) through a buffer spring (920), and a contact plate (940) is connected to the front end of the strut (930).
5. The device for testing impact resistance of the turbine blade according to claim 3, wherein the middle part of the inner side of the reinforcing plate (140) is equidistantly connected with a clamping mechanism (600), a clamping motor (610) included by the clamping mechanism (600) is equidistantly arranged to penetrate through the middle part of the reinforcing plate (140), the upper end of a clamping frame (620) rotating at the output end of the inner side of the clamping motor (610) is slidably connected with a clamping block (640) through a guide rail (630), and the output end of the inner side of an electric push rod (650) penetrating through the end part of the guide rail (630) is movably connected with the upper part of the outer side of the clamping block (640).
6. The device for testing impact resistance of the steam turbine blade according to claim 3, wherein the bottom end part of the mounting frame (110) is connected with a supporting mechanism (700), the supporting mechanism (700) comprises a group of centrally symmetrical brackets (710), the inner end damping of each bracket (410) extends into the middle part of the outer end of each bracket (710), and the middle part of the bottom of each bracket (710) is welded with a supporting block (720).
7. The device for testing the impact resistance of the turbine blade according to claim 6, wherein the middle part of the inner end of the supporting frame (710) is connected with a moving mechanism (800) in a damping manner, the moving mechanism (800) comprises a lower U-shaped frame (810) and a roller (820) is rotatably connected to the lower part of the inner side of the lower U-shaped frame, and the roller (830) is sleeved in the middle part of the roller (820) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210633609.7A CN114705571B (en) | 2022-06-07 | 2022-06-07 | Testing device for impact resistance of turbine blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210633609.7A CN114705571B (en) | 2022-06-07 | 2022-06-07 | Testing device for impact resistance of turbine blade |
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| CN114705571A CN114705571A (en) | 2022-07-05 |
| CN114705571B true CN114705571B (en) | 2022-08-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103499487A (en) * | 2013-10-13 | 2014-01-08 | 大连理工大学 | Complex load tester |
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