CN119104254B - Vibration testing tool for aerospace equipment - Google Patents

Vibration testing tool for aerospace equipment Download PDF

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Publication number
CN119104254B
CN119104254B CN202411562796.XA CN202411562796A CN119104254B CN 119104254 B CN119104254 B CN 119104254B CN 202411562796 A CN202411562796 A CN 202411562796A CN 119104254 B CN119104254 B CN 119104254B
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CN
China
Prior art keywords
sliding
frame
wall
motor
assembly
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Active
Application number
CN202411562796.XA
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Chinese (zh)
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CN119104254A (en
Inventor
常宝山
何海伟
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Hebei Huaen Machinery Manufacturing Co ltd
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Hebei Huaen Machinery Manufacturing Co ltd
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Priority to CN202411562796.XA priority Critical patent/CN119104254B/en
Publication of CN119104254A publication Critical patent/CN119104254A/en
Application granted granted Critical
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00—Vibration-testing of structures; Shock-testing of structures
    • G01M7/02—Vibration-testing by means of a shake table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00—Vibration-testing of structures; Shock-testing of structures
    • G01M7/02—Vibration-testing by means of a shake table
    • G01M7/025—Measuring arrangements
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention relates to the technical field of vibration test tools of aerospace equipment, and discloses a vibration test tool for aerospace equipment, which comprises a slamming assembly, wherein a plurality of placing frames are provided with aerospace shells, the outer wall of the top of each moving frame is provided with a pumping assembly, the pumping assembly is connected with an annular sleeve, and a hairbrush and a dial indicator are arranged on the annular sleeve. According to the invention, through the arrangement of the movable annular sleeve, the movable annular sleeve extrudes the telescopic pipe, then the gas in the telescopic pipe is discharged through the gas pipe, the spring is used for resetting the telescopic pipe, the telescopic pipe is refilled with air, the discharged air is blown out through the gas hole of the ring body and is blown to the outer wall surface of the space shell, and dust on the outer wall surface of the space shell is blown off, so that the influence of the dust on the outer wall surface on the detection of the dial indicator is reduced.

Description

Vibration testing tool for aerospace equipment
Technical Field
The invention relates to the technical field of vibration testing tools of aerospace equipment, in particular to a vibration testing tool for aerospace equipment.
Background
The vibration test tool of the aerospace equipment is specially designed equipment and is used for simulating and testing the vibration environment possibly encountered by the aerospace equipment in the launching and flying processes. These vibratory environments may include severe vibration at rocket launch, micro-vibration in orbit, and the like. The purpose of the vibration test fixture is to ensure that the aerospace device can maintain structural integrity and normal function under these extreme conditions, and a series of environmental and performance tests are required to be performed on the aerospace device in the design and manufacturing process so as to ensure that the aerospace device can work normally in a real space environment. Vibration testing is an important component in the tests, simulates vibration environments generated in rocket launching, on-orbit running and the like to evaluate the structural strength and reliability of equipment, and is carried out in a negative pressure state to simulate the actual working conditions of aerospace equipment in a space vacuum environment. Such testing is particularly important for those devices that will be deployed directly in space environments, as the vacuum environment can affect the properties of the material, such as thermal expansion, gas release, etc. By performing shock testing in a negative pressure environment, the performance and life of the device can be more accurately assessed;
In the prior art, after the vibration test is carried out on the shell of the aerospace device, flatness test is usually carried out on the shell of the aerospace device through a dial indicator, so that the structural integrity and performance of the shell of the aerospace device are ensured, dust and impurities possibly existing on the top surface of the shell of the aerospace device are not completely shaken off in the vibration process of the shell of the aerospace device, and the accuracy of a test result can be affected to a certain extent by the dust or impurities attached to the shell.
Disclosure of Invention
The invention aims to provide a vibration testing tool for aerospace equipment, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a vibration testing tool for aerospace equipment, which comprises a frame, a movable frame and a lifting assembly, wherein a plurality of first sliding grooves, a plurality of second sliding grooves, a plurality of placing frames and a bracket are arranged on the frame;
the movable frame is connected to the two second sliding grooves in a sliding manner, and the lifting assembly is arranged at the top of the movable frame;
the two sliding frames are respectively connected to the first sliding grooves in a sliding way, the two sliding frames are respectively arranged at two ends of the frame, and a bidirectional screw rod is connected between the two sliding frames;
the sliding frames are provided with air cylinders, the tops of the two sliding frames are respectively and slidably connected with a port supporting assembly, and the output ends of the air cylinders are connected with the port supporting assemblies;
the slamming component is arranged in the middle of the frame;
space shells are placed on the plurality of placing frames;
the top outer wall of the movable frame is provided with a pumping assembly, the pumping assembly is connected with an annular sleeve, and the annular sleeve is provided with a hairbrush and a dial indicator;
The purpose of the arrangement is that the space shell is placed on the placing frame, the sliding frame and the opening supporting assemblies are adjusted through the bidirectional screw rods, the two opening supporting assemblies are adjusted to the two ends of the frame, then the movable frame is adjusted to adjust the lifting assembly, the bidirectional screw rods are lifted through the lifting assembly and the lifting rope, and then the space shell is moved between the two opening supporting assemblies;
Supporting the two ports of the space shell by adjusting the two port supporting assemblies to be close to the ports of the space shell, touching the outer wall of the space shell by the attack assembly, performing vibration test on the space shell, rotating the space shell, touching the other position of the space shell, and performing vibration test again;
after the testing, the flatness of the outer wall of the space flight shell is tested by moving the annular sleeve, in the testing process, the annular sleeve moves to drive the pumping assembly to operate, dust on the outer wall of the space flight shell is blown off by the pumping assembly, then the annular sleeve drives the hairbrush to clean the outer wall of the space flight shell, and then the dial indicator tests the outer wall of the space flight shell.
Further, the lifting assembly comprises a first motor and rollers, the first motor is arranged on the outer wall of the movable frame, the two rollers are respectively and rotatably connected to the top of the movable frame, and the output end of the first motor is connected with one of the rollers;
gears are respectively connected to the two rollers, and the two gears are meshed with each other;
The outer walls of the two rollers are respectively connected with a cable, the bottom ends of the two cables are connected with blocks, and the bottoms of the blocks are rotatably connected with hooks;
the purpose of above-mentioned setting is, drives the cylinder through the output of first motor and rotates, drives the gear simultaneously and rotates, and two gears intermeshing rotates, and two gear rotation opposite directions receive and releases the hawser on two cylinders to go up and down to block and couple.
Further, two threads are arranged on the bidirectional screw rod, the two threads are symmetrical on the outer wall of the bidirectional screw rod, and the bidirectional screw rod is in threaded connection with the sliding frame respectively;
The purpose of the setting is that the setting of the two-way screw bi-directional screw thread drives the adjustment to two sliding frames simultaneously when rotating the two-way screw, and the symmetrical screw thread makes two sliding frames approach or keep away from each other to drive two and prop a mouthful subassembly and approach or keep away from each other.
Further, the opening supporting assembly comprises a supporting frame, the output end of the air cylinder penetrates through the top of the sliding frame and extends to the upper portion of the sliding frame, the lower surface of the supporting frame is connected with the output end of the air cylinder, two ends of the supporting frame are respectively connected with the sliding frame in a sliding mode, and one end of the supporting frame is connected with a round body;
The purpose of the arrangement is that the opening supporting component is controlled to lift through the output end of the air cylinder, so that the height of the space shell is adjusted, the distance between the space shell and the attack component is adjusted, and the vibration test is adjusted.
Further, a second motor is arranged on the outer wall of the circular body, the output end of the second motor penetrates through the circular body, a driving gear is arranged on the output end of the second motor, a driven gear is rotationally connected to the center of the circular body, and the driving gear and the driven gear are meshed with each other;
Four sliding blocks are connected to the circular body in a sliding manner, an arc-shaped groove is formed in the outer wall of the driven gear, and one end of each sliding block extends to the inner side of the corresponding arc-shaped groove;
The purpose that above-mentioned setting is, the output of second motor drives drive gear and rotates, and drive gear and driven gear intermesh drive driven gear rotate, and the arc slot arc on the driven gear drives to the slider to four sliders are moved on the circle body to control, when four sliders move to the outside simultaneously, prop up the port inner wall of space shell, thereby fix the space shell.
Further, a third motor is installed at the bottom of the frame, the output end of the third motor penetrates through the frame and extends to the upper side of the frame, a rotating disc is installed at the output end of the third motor, a plurality of slope blocks are installed on the upper surface of the rotating disc, U-shaped frames are slidably connected to the two ends of the support, the bottom ends of the U-shaped frames move on the upper surfaces of the slope blocks, and protruding blocks are installed on the upper surfaces of the U-shaped frames;
The purpose of the above-mentioned setting is, and the output of third motor drives the rolling disc and rotates with the slope piece, and the slope piece is gradually with U-shaped frame and lug jack-up, and the U-shaped frame slides from top to bottom on the support.
Further, the pumping assembly comprises a long pipe, the long pipe is arranged on the outer wall of the movable frame, a sliding groove is formed in the bottom of the long pipe, a telescopic pipe is arranged in the long pipe, a spring is arranged in the telescopic pipe, and an air pipe is communicated with the outer wall of the telescopic pipe;
The purpose of the above-mentioned setting is, remove annular external member and extrude the flexible pipe, and then the inside gas of flexible pipe is discharged through the trachea, and the spring is used for resetting the flexible pipe, lets the flexible pipe refill air.
Further, the annular sleeve comprises a sliding rod, the top of the sliding rod is in sliding connection with the inner wall of the long tube through a long tube sliding groove, the air tube is communicated with the sliding rod, the bottom of the sliding rod is communicated with a ring body, and a plurality of air holes are formed in the inner wall of the ring body;
The inner wall of the ring body is connected with a moving block in a sliding manner, and the dial indicator is arranged on the moving block;
The purpose of the arrangement is that the discharged air is discharged through the air holes of the ring body and is discharged to the outer wall surface of the space flight shell, and the adjusting moving block and the dial indicator are used for testing the flatness of the outer wall of the space flight shell.
Further, a hairbrush is connected to the moving block in a threaded manner;
The purpose of the setting is that, when movable block and amesdial are circular motion on the ring body, when the outer wall of space shell is cleared up, threaded connection has the brush, and in the removal process, clear up the outer wall of space shell through the brush earlier to reduce the influence of space shell surface dust to the amesdial test.
Further, notches are respectively arranged on the outer walls of the sliding blocks, annular rubber is arranged between the notches, and a pipe body is arranged on one of the round bodies;
The purpose of above-mentioned setting is, prop up the port inner wall of space flight casing through the slider back, the notch that sets up is used for installing annular rubber, the outer wall of annular rubber closely laminates with the inner wall of space flight casing, the inner wall of annular rubber closely laminates with the outer wall of round body, thereby seal the port of space flight casing, form a cavity, be provided with the body on one of them round body, the body communicates with this cavity, the body is used for through the pipe connection air pump, the air pump adopts current YN1680 2-50L model, the air pump is used for carrying out the evacuation or aerifing this cavity, thereby let the cavity inside form a state of pressure boost or negative pressure, thereby carry out vibration test to space flight casing under pressure boost and negative pressure state, thereby obtain the test result under different states.
The invention has the following beneficial effects:
(1) According to the invention, through the arrangement of the movable annular sleeve, the movable annular sleeve extrudes the telescopic pipe, then the gas in the telescopic pipe is discharged through the gas pipe, the spring is used for resetting the telescopic pipe, the telescopic pipe is refilled with air, the discharged air is blown out through the gas hole of the ring body and is blown to the outer wall surface of the space shell, and dust on the outer wall surface of the space shell is blown off, so that the influence of the dust on the outer wall surface on the detection of the dial indicator is reduced.
(2) According to the invention, through the arrangement of the hairbrushes, when the movable block and the dial indicator do circular motion on the ring body, the hairbrushes are connected in a threaded manner when the outer wall of the space shell is cleaned, and in the moving process, the outer wall of the space shell is cleaned by the hairbrushes, so that the influence of dust on the surface of the space shell on the dial indicator test is further reduced.
(3) According to the invention, through the arrangement of the annular rubber and the pipe body, after the inner wall of the port of the space shell is supported by the sliding block, the arranged notch is used for installing the annular rubber, the outer wall of the annular rubber is tightly attached to the inner wall of the space shell, the inner wall of the annular rubber is tightly attached to the outer wall of the circular body, so that the port of the space shell is sealed to form a cavity, one circular body is provided with the pipe body, the pipe body is communicated with the cavity, the pipe body is used for connecting an air pump through a pipeline, the air pump adopts the existing YN1680 model 2-50L, and the air pump is used for pumping or inflating the cavity, so that the inner part of the cavity is in a pressurized or negative pressure state, and vibration test is performed on the space shell in the pressurized and negative pressure states, so that test results in different states are obtained.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a lifting assembly and a mobile frame of the present invention;
FIG. 3 is a schematic view of a lift assembly according to the present invention;
FIG. 4 is a schematic view of a pumping assembly and annular set of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4A according to the present invention;
FIG. 6 is a schematic view of a frame structure of the present invention;
FIG. 7 is a schematic view of an slamming assembly of the present invention;
FIG. 8 is a schematic view of a strut assembly according to the present invention;
FIG. 9 is a second schematic view of the strut assembly of the present invention;
FIG. 10 is a schematic plan view of a strut assembly according to the present invention;
FIG. 11 is a schematic plan view of a strut assembly according to the present invention;
FIG. 12 is a schematic view of the annular rubber structure of the present invention;
in the drawings, the list of components represented by the various numbers is as follows:
1, frame, 101, first chute, 102, second chute, 103, placement frame, 104, bracket, 2, moving frame, 3, lifting assembly, 301, first motor, 302, drum, 303, cable, 304, gear, 305, block, 306, hook, 4, carriage, 5, cylinder, 6, bracing assembly, 601, support frame, 602, circular body, 603, driving gear, 604, driven gear, 605, arc slot, 606, slider, 6060, notch, 607, second motor, 7, strike assembly, 701, third motor, 702, rotating disc, 703, ramp block, 704, U-shaped frame, 705, bump, 8, pumping assembly, 801, long tube, 802, telescoping tube, 803, spring, 804, trachea, 9, annular sleeve, 901, sliding rod, 902, ring body, 9020, air hole, 903, moving block, 10, bi-directional screw, 11, aerospace shell, 12, hairbrush, 13, dial gauge, 14, annular rubber, 15, tube body.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The invention relates to a vibration test tool for aerospace equipment, which is shown in fig. 1-10, and comprises a frame 1, a movable frame 2 and a lifting assembly 3, wherein the frame 1 is provided with a plurality of first sliding grooves 101, a plurality of second sliding grooves 102, a plurality of placing frames 103 and a bracket 104;
The movable frame 2 is connected to the two second sliding grooves 102 in a sliding manner, and the lifting assembly 3 is arranged at the top of the movable frame 2;
The two first sliding grooves 101 are respectively and slidably connected with sliding frames 4, the two sliding frames 4 are respectively arranged at two ends of the frame 1, and a bidirectional screw rod 10 is connected between the two sliding frames 4;
The sliding frames 4 are provided with air cylinders 5, the tops of the two sliding frames 4 are respectively and slidably connected with a port supporting assembly 6, and the output ends of the air cylinders 5 are connected with the port supporting assembly 6;
the slamming component 7 is arranged in the middle of the frame 1;
a plurality of placing frames 103 are provided with space shells 11;
The outer wall of the top of the movable frame 2 is provided with a pumping assembly 8, the pumping assembly 8 is connected with an annular sleeve 9, and the annular sleeve 9 is provided with a hairbrush 12 and a dial indicator 13;
In this embodiment, the purpose of the above arrangement is to place the space shell 11 on the placement frame 103, adjust the sliding frame 4 and the opening supporting assemblies 6 through the bidirectional screw rod 10, adjust the two opening supporting assemblies 6 to the two ends of the frame 1, then adjust the moving frame 2 to adjust the lifting assembly 3, hoist the bidirectional screw rod 10 through the lifting assembly 3 in cooperation with the lifting rope, and then move between the two opening supporting assemblies 6;
The two ports of the space flight shell 11 are supported by adjusting the two port supporting assemblies 6 to be close to the ports of the space flight shell 11, the outer wall of the space flight shell 11 is touched by the attack assembly 7, the space flight shell 11 is subjected to vibration test, then the space flight shell 11 is rotated, the other position of the space flight shell 11 is touched, and then the vibration test is performed again;
after the testing, flatness testing is conducted on the outer wall of the space flight shell 11 by moving the annular sleeve 9, in the testing process, the annular sleeve 9 moves to drive the pumping assembly 8 to operate, the pumping assembly 8 blows dust on the outer wall of the space flight shell 11 firstly, then the annular sleeve 9 drives the hairbrush 12 to clean the outer wall of the space flight shell 11 firstly, and then the dial indicator 13 tests the outer wall of the space flight shell 11.
As an embodiment, as shown in fig. 2-3, further:
The lifting assembly 3 comprises a first motor 301 and rollers 302, the first motor 301 is arranged on the outer wall of the movable frame 2, the two rollers 302 are respectively and rotatably connected to the top of the movable frame 2, and the output end of the first motor 301 is connected with one of the rollers 302;
Gears 304 are respectively connected to the two rollers 302, and the two gears 304 are meshed with each other;
The outer walls of the two rollers 302 are respectively connected with a cable 303, the bottom ends of the two cables 303 are connected with a block 305, and the bottom of the block 305 is rotatably connected with a hook 306;
in this embodiment, the purpose of the above arrangement is to drive the drum 302 to rotate through the output end of the first motor 301, and simultaneously drive the gear 304 to rotate, the two gears 304 are meshed with each other to rotate, and the rotation directions of the two gears 304 are opposite, so as to retract and release the cables 303 on the two drums 302, thereby lifting the block 305 and the hook 306.
As an embodiment, as shown in fig. 1, further:
Two threads are arranged on the bidirectional screw rod 10, the two threads are symmetrical on the outer wall of the bidirectional screw rod 10, and the bidirectional screw rod 10 is respectively in threaded connection with the sliding frame 4;
In this embodiment, the purpose of the above arrangement is to set bidirectional threads of the bidirectional screw 10, and when the bidirectional screw 10 is rotated, drive and adjust the two sliding frames 4 at the same time, and the symmetrical threads enable the two sliding frames 4 to approach or separate from each other, so as to drive the two opening supporting assemblies 6 to approach or separate from each other.
As an embodiment, as shown in fig. 8 to 9, further:
The opening supporting assembly 6 comprises a supporting frame 601, the output end of the air cylinder 5 penetrates through the top of the sliding frame 4 and extends to the upper side of the sliding frame 4, the lower surface of the supporting frame 601 is connected with the output end of the air cylinder 5, two ends of the supporting frame 601 are respectively connected with the sliding frame 4 in a sliding mode, and one end of the supporting frame 601 is connected with a circular body 602;
In this embodiment, the purpose of the above arrangement is to control the opening supporting assembly 6 to lift and lower through the output end of the air cylinder 5, so as to adjust the height of the space shell 11, so as to adjust the distance between the space shell 11 and the attack assembly 7, and thus adjust the vibration test.
As an embodiment, as shown in fig. 8 to 9, further:
The outer wall of the circular body 602 is provided with a second motor 607, the output end of the second motor 607 penetrates through the circular body 602, the output end of the second motor 607 is provided with a driving gear 603, the center of the circular body 602 is rotationally connected with a driven gear 604, and the driving gear 603 is meshed with the driven gear 604;
four sliding blocks 606 are connected to the circular body 602 in a sliding manner, an arc-shaped groove 605 is formed in the outer wall of the driven gear 604, and one end of each sliding block 606 extends to the inner side of the arc-shaped groove 605;
In this embodiment, the purpose of the above arrangement is that the output end of the second motor 607 drives the driving gear 603 to rotate, the driving gear 603 is meshed with the driven gear 604, the driven gear 604 is driven to rotate, the arc surface of the arc-shaped groove 605 on the driven gear 604 drives the sliding blocks 606, so as to control the four sliding blocks 606 to move on the circular body 602, and when the four sliding blocks 606 simultaneously move outwards, the inner wall of the port of the space shell 11 is supported, so that the space shell 11 is fixed.
As an embodiment, as shown in fig. 7, further:
the bottom of the frame 1 is provided with a third motor 701, the output end of the third motor 701 penetrates through the frame 1 and extends to the upper side of the frame 1, the output end of the third motor 701 is provided with a rotating disc 702, the upper surface of the rotating disc 702 is provided with a plurality of slope blocks 703, two ends of the bracket 104 are connected with U-shaped frames 704 in a sliding manner, the bottom ends of the U-shaped frames 704 move on the upper surfaces of the slope blocks 703, and the upper surface of the U-shaped frames 704 is provided with bumps 705;
In this embodiment, the purpose of the above arrangement is that the output end of the third motor 701 drives the rotating disc 702 and the ramp 703 to rotate, and the ramp 703 gradually lifts the U-shaped frame 704 and the bump 705, so that the U-shaped frame 704 slides up and down on the bracket 104.
As an embodiment, as shown in fig. 4, further:
The pumping assembly 8 comprises a long tube 801, the long tube 801 is arranged on the outer wall of the movable frame 2, a sliding groove is formed in the bottom of the long tube 801, a telescopic tube 802 is arranged in the long tube 801, a spring 803 is arranged in the telescopic tube 802, and an air tube 804 is communicated with the outer wall of the telescopic tube 802;
In this embodiment, the purpose of the above arrangement is to move the ring-shaped sleeve 9 to squeeze the bellows 802, then the air inside the bellows 802 is exhausted through the air pipe 804, and the spring 803 is used to reset the bellows 802 to allow the bellows 802 to be refilled with air.
As an embodiment, as shown in fig. 4, further:
The annular sleeve 9 comprises a sliding rod 901, wherein the top of the sliding rod 901 is in sliding connection with the inner wall of the long tube 801 through a sliding groove of the long tube 801, an air tube 804 is communicated with the sliding rod 901, the bottom of the sliding rod 901 is communicated with a ring body 902, and a plurality of air holes 9020 are formed in the inner wall of the ring body 902;
a moving block 903 is connected on the inner wall of the ring body 902 in a sliding way, and a dial gauge 13 is arranged on the moving block 903;
in this embodiment, the purpose of the above arrangement is that the discharged air is blown out through the air holes 9020 of the ring body 902, and is blown to the outer wall surface of the space shell 11, so that the dust on the outer wall surface of the space shell 11 is blown off, and the moving block 903 and the dial indicator 13 are adjusted for testing the flatness of the outer wall of the space shell 11.
As an embodiment, as shown in fig. 5, further:
The movable block 903 is connected with a hairbrush 12 in a threaded manner;
In this embodiment, the purpose of the above arrangement is that when the moving block 903 and the dial indicator 13 do circular motion on the ring body 902, the brush 12 is in threaded connection when the outer wall of the space shell 11 is cleaned, and in the moving process, the outer wall of the space shell 11 is cleaned by the brush 12, so that the influence of dust on the surface of the space shell 11 on the test of the dial indicator 13 is reduced.
Example 2
As an embodiment, as shown in fig. 11 to 12, further:
The outer walls of the sliding blocks 606 are respectively provided with a notch 6060, annular rubber 14 is arranged between the notches 6060, and one of the circular bodies 602 is provided with a pipe body 15;
In this embodiment, the purpose of the above arrangement is that, after the inner wall of the port of the space shell 11 is supported by the slide block 606, the notch 6060 is used for installing the annular rubber 14, the outer wall of the annular rubber 14 is tightly attached to the inner wall of the space shell 11, and the inner wall of the annular rubber 14 is tightly attached to the outer wall of the circular body 602, so that the port of the space shell 11 is sealed to form a cavity, one of the circular bodies 602 is provided with a pipe body 15, the pipe body 15 is communicated with the cavity, the pipe body 15 is connected with an air pump through a pipeline, the air pump adopts the existing model YN1680 with a size of 2-50L, and the air pump is used for pumping or inflating the cavity, so that the cavity is in a pressurized or negative pressure state, and thus the space shell 11 is subjected to vibration test in the pressurized and negative pressure states, and test results in different states are obtained.
The working principle is that the space shell 11 is placed on the placement frame 103, the sliding frame 4 and the opening supporting assemblies 6 are adjusted through the bidirectional screw rods 10, the two opening supporting assemblies 6 are adjusted to the two ends of the frame 1, then the moving frame 2 is adjusted to adjust the lifting assemblies 3, the output end of the first motor 301 drives the roller 302 to rotate, meanwhile, the gears 304 are driven to rotate, the two gears 304 are meshed with each other to rotate, the rotation directions of the two gears 304 are opposite, cables 303 on the two rollers 302 are retracted and released, the block 305 and the hooks 306 are lifted, and the hooks 306 hoist the space shell 11 through lifting ropes;
The sliding frame 4 and the opening supporting assemblies 6 are adjusted through the bidirectional screw rods 10, the two opening supporting assemblies 6 are adjusted to two ports of the space shell 11, the output end of the second motor 607 drives the driving gear 603 to rotate, the driving gear 603 is meshed with the driven gear 604 to drive the driven gear 604 to rotate, the arc surfaces of the arc grooves 605 on the driven gear 604 drive the sliding blocks 606, so that the four sliding blocks 606 are controlled to move on the circular body 602, and when the four sliding blocks 606 simultaneously move outwards, the inner walls of the ports of the space shell 11 are supported, so that the space shell 11 is fixed;
the output end of the third motor 701 drives the rotating disc 702 and the slope block 703 to rotate, the slope block 703 gradually jacks up the U-shaped frame 704 and the convex block 705, the U-shaped frame 704 slides up and down on the bracket 104, the convex block 705 continuously touches the space shell 11 to enable the space shell 11 to vibrate, the output end of the air cylinder 5 controls the opening supporting assembly 6 to lift, so that the height of the space shell 11 is adjusted, the distance between the space shell 11 and the impact assembly 7 is adjusted, and the vibration test is adjusted;
After vibration is finished, a sliding rod 901 is moved, the top of the sliding rod 901 extrudes a telescopic pipe 802, then gas in the telescopic pipe 802 is discharged through a gas pipe 804, a spring 803 is used for resetting the telescopic pipe 802, the telescopic pipe 802 is refilled with air, the discharged air is blown out through a gas hole 9020 of a ring body 902 and is blown to the outer wall surface of a space shell 11, dust on the outer wall surface of the space shell 11 is blown off, and a moving block 903 and a dial gauge 13 are adjusted to be used for testing the flatness of the outer wall of the space shell 11;
when the movable block 903 and the dial indicator 13 do circular motion on the ring body 902, the hairbrush 12 is in threaded connection when the outer wall of the space shell 11 is cleaned, and in the moving process, the outer wall of the space shell 11 is cleaned through the hairbrush 12, so that the influence of dust on the surface of the space shell 11 on the test of the dial indicator 13 is reduced;
After the inner wall of the port of the space shell 11 is supported by the sliding block 606, the notch 6060 is used for installing the annular rubber 14, the outer wall of the annular rubber 14 is tightly attached to the inner wall of the space shell 11, the inner wall of the annular rubber 14 is tightly attached to the outer wall of the circular body 602, the port of the space shell 11 is sealed, a cavity is formed, one of the circular bodies 602 is provided with the pipe body 15, the pipe body 15 is communicated with the cavity, the pipe body 15 is connected with the air pump through a pipeline, the air pump adopts the existing YN1680 to the model number of 2-50L, and the air pump is used for pumping or inflating the cavity, so that the inner part of the cavity is in a pressurizing or negative pressure state, and vibration test is performed on the space shell 11 in the pressurizing and negative pressure states, and test results in different states are obtained.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims (7)

1. The vibration testing tool for the aerospace equipment comprises a frame (1), a movable frame (2) and a lifting assembly (3) and is characterized in that a plurality of first sliding grooves (101), a plurality of second sliding grooves (102), a plurality of placing frames (103) and a bracket (104) are arranged on the frame (1);
The movable frame (2) is connected to the two second sliding grooves (102) in a sliding manner, and the lifting assembly (3) is arranged at the top of the movable frame (2);
the two first sliding grooves (101) are respectively and slidably connected with sliding frames (4), the two sliding frames (4) are respectively arranged at two ends of the frame (1), and a bidirectional screw rod (10) is connected between the two sliding frames (4);
The sliding frames (4) are provided with air cylinders (5), the tops of the two sliding frames (4) are respectively and slidably connected with a port supporting assembly (6), and the output ends of the air cylinders (5) are connected with the port supporting assembly (6);
the middle part of the frame (1) is provided with a attack assembly (7);
a space shell (11) is arranged on the plurality of placing frames (103);
a pumping assembly (8) is arranged on the outer wall of the top of the movable frame (2), an annular sleeve (9) is connected to the pumping assembly (8), and a hairbrush (12) and a dial indicator (13) are arranged on the annular sleeve (9);
The lifting assembly (3) comprises a first motor (301) and rollers (302), the first motor (301) is arranged on the outer wall of the movable frame (2), the two rollers (302) are respectively and rotatably connected to the top of the movable frame (2), and the output end of the first motor (301) is connected with one of the rollers (302);
Gears (304) are respectively connected to the two rollers (302), and the two gears (304) are meshed with each other;
The outer walls of the two rollers (302) are respectively connected with a cable (303), the bottom ends of the two cables (303) are connected with a block (305), and the bottom of the block (305) is rotatably connected with a hook (306);
The pumping assembly (8) comprises a long tube (801), the long tube (801) is mounted on the outer wall of the movable frame (2), a sliding groove is formed in the bottom of the long tube (801), a telescopic tube (802) is mounted in the long tube (801), a spring (803) is mounted in the telescopic tube (802), and an air tube (804) is communicated with the outer wall of the telescopic tube (802);
The annular sleeve (9) comprises a sliding rod (901), the top of the sliding rod (901) is in sliding connection with the inner wall of the long tube (801) through a sliding groove of the long tube (801), the air tube (804) is communicated with the sliding rod (901), the bottom of the sliding rod (901) is communicated with a ring body (902), and a plurality of air holes (9020) are formed in the inner wall of the ring body (902);
the inner wall of the ring body (902) is connected with a moving block (903) in a sliding mode, and the dial indicator (13) is arranged on the moving block (903).
2. The vibration test fixture for aerospace equipment according to claim 1, wherein two threads are arranged on the bidirectional screw (10), the two threads are symmetrical on the outer wall of the bidirectional screw (10), and the bidirectional screw (10) is in threaded connection with the sliding frame (4) respectively.
3. The vibration testing tool for aerospace equipment according to claim 2, wherein the opening supporting assembly (6) comprises a supporting frame (601), the output end of the air cylinder (5) penetrates through the top of the sliding frame (4) and extends to the upper portion of the sliding frame (4), the lower surface of the supporting frame (601) is connected with the output end of the air cylinder (5), two ends of the supporting frame (601) are respectively connected with the sliding frame (4) in a sliding mode, and one end of the supporting frame (601) is connected with a round body (602).
4. The vibration test fixture for the aerospace equipment according to claim 3, wherein a second motor (607) is installed on the outer wall of the circular body (602), the output end of the second motor (607) penetrates through the circular body (602), a driving gear (603) is installed on the output end of the second motor (607), a driven gear (604) is rotatably connected to the center of the circular body (602), and the driving gear (603) and the driven gear (604) are meshed with each other;
Four sliding blocks (606) are connected to the circular body (602) in a sliding mode, an arc-shaped groove (605) is formed in the outer wall of the driven gear (604), and one end of each sliding block (606) extends to the inner side of the corresponding arc-shaped groove (605).
5. The vibration test fixture for aerospace equipment according to claim 4, wherein a third motor (701) is installed at the bottom of the frame (1), the output end of the third motor (701) penetrates through the frame (1) and extends to the upper portion of the frame (1), a rotating disc (702) is installed on the output end of the third motor (701), a plurality of slope blocks (703) are installed on the upper surface of the rotating disc (702), U-shaped frames (704) are slidably connected to the two ends of the support (104), the bottom ends of the U-shaped frames (704) move on the upper surfaces of the slope blocks (703), and protruding blocks (705) are installed on the upper surfaces of the U-shaped frames (704).
6. The vibration testing tool for aerospace equipment according to claim 5, wherein the moving block (903) is connected with a hairbrush (12) in a threaded mode.
7. The vibration testing tool for aerospace equipment according to claim 6, wherein a plurality of notches (6060) are formed in the outer walls of the sliding blocks (606), annular rubber (14) is arranged between the notches (6060), and a pipe body (15) is arranged on one circular body (602).
CN202411562796.XA 2024-11-05 2024-11-05 Vibration testing tool for aerospace equipment Active CN119104254B (en)

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CN106525399A (en) * 2016-11-11 2017-03-22 成都陵川特种工业有限责任公司 Improved muffler manufacture method
CN115030064A (en) * 2022-06-22 2022-09-09 中铁三局集团第五工程有限公司 A kind of construction method of moving beam for reconstruction of high-speed railway elevated station

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Publication number Priority date Publication date Assignee Title
KR100320989B1 (en) * 1999-12-15 2002-01-18 김형국 Shaft alignment apparatus for circulation water pump
CN117977890B (en) * 2024-02-23 2024-09-27 温州市方胜汽车部件有限公司 Clutch motor rotor assembly equipment and assembly method thereof
CN118770941B (en) * 2024-09-10 2024-11-22 广东首熙智能装备有限公司 Centralized feeding and loading device and feeding method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106525399A (en) * 2016-11-11 2017-03-22 成都陵川特种工业有限责任公司 Improved muffler manufacture method
CN115030064A (en) * 2022-06-22 2022-09-09 中铁三局集团第五工程有限公司 A kind of construction method of moving beam for reconstruction of high-speed railway elevated station

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