CN118857793B - A kind of anti-fatigue detection device for automobile chassis suspension structure - Google Patents
A kind of anti-fatigue detection device for automobile chassis suspension structure Download PDFInfo
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- CN118857793B CN118857793B CN202411292441.3A CN202411292441A CN118857793B CN 118857793 B CN118857793 B CN 118857793B CN 202411292441 A CN202411292441 A CN 202411292441A CN 118857793 B CN118857793 B CN 118857793B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
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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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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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
- G01N3/26—Investigating twisting or coiling properties
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
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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
- G01N2203/0005—Repeated or cyclic
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
本发明涉及测试设备的技术领域，特别是涉及一种汽车底盘悬挂结构抗疲劳检测装置，包括两个圆盘和一组动力单元，一个圆盘位置固定，另一个圆盘通过动力单元带动移动，每个圆盘上均设有托板，两个托板位于两个圆盘之间，每个托板上均设有插柱，两个插柱用于穿过橡胶吊耳上的两个圆孔，从而对橡胶吊耳进行固定；该装置不仅可以模拟橡胶吊耳在动态载荷下的扭动疲劳，还可以进行弹性往复拉伸疲劳测试，实现了对橡胶吊耳的多项测试工作，从而获得更准确的测试结果，并且通过使橡胶吊耳进行往复扭转和拉伸，该装置可以更好地模拟汽车在实际使用过程中的复杂工况，提高了测试的现实意义。
The present invention relates to the technical field of testing equipment, and in particular to an anti-fatigue detection device for a suspension structure of an automobile chassis, comprising two discs and a group of power units, wherein one disc is fixed in position, and the other disc is driven to move by the power unit, and each disc is provided with a support plate, and the two support plates are located between the two discs, and each support plate is provided with a plug, and the two plugs are used to pass through two round holes on a rubber ear, so as to fix the rubber ear; the device can not only simulate the torsional fatigue of the rubber ear under a dynamic load, but also perform elastic reciprocating tensile fatigue test, thereby realizing multiple test tasks on the rubber ear, thereby obtaining more accurate test results, and by causing the rubber ear to reciprocate in torsion and stretching, the device can better simulate the complex working conditions of the automobile during actual use, thereby improving the practical significance of the test.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to an anti-fatigue detection device for an automobile chassis suspension structure.
Background
With the rapid development and technical progress of the automobile industry, quality control of automobile parts becomes particularly important, and an automobile chassis is an important component of a vehicle structure, and performance of the automobile chassis directly affects driving safety and comfort, wherein a rubber lifting lug is an important suspension component connected with an exhaust pipe, and plays roles in damping and fixing the exhaust pipe.
The rubber lifting lug is usually made of composite rubber, and the main function of the rubber lifting lug is to absorb shock in the running process of a vehicle, however, in the long-term use process, the rubber material can be subjected to fatigue damage due to repeated stretching and compression so as to influence the performance of the rubber lifting lug, and therefore, the fatigue resistance performance test of the rubber lifting lug is very necessary.
The traditional anti-fatigue test method mainly adopts a static loading mode, namely, a lifting lug is pulled through a cylinder or an oil cylinder and other structures, so that the lifting lug is kept in a deformation state under a specified tensile force, after the lifting lug is deformed for a specified time, the application of the tensile force is stopped, at the moment, whether the lifting lug can recover an initial shape or not is observed, and whether defects such as cracks and the like are generated on the lifting lug or not is detected, but the test mode is more one-sided, the real performance of the lifting lug under a dynamic load can not be accurately tested, and only one test mode can be carried out, so that the test is not comprehensive.
Disclosure of Invention
In order to solve the technical problems, the invention provides an anti-fatigue detection device for an automobile chassis suspension structure, which adopts the following specific technical scheme:
The utility model provides an anti-fatigue detection device of automobile chassis suspended structure, includes two discs and a set of power pack, and one disc position is fixed, and another disc passes through the power pack and drives the removal, all is equipped with the layer board on every disc, and two layer boards are located between two discs, all are equipped with the spliced pole on every layer board, and two spliced poles are used for passing two round holes on the rubber lug to fix the rubber lug;
The power unit comprises a supporting shaft coaxially arranged on the disc, a gear is arranged on the supporting shaft, an outer frame is arranged on the outer side of the gear, the length direction of the outer frame is horizontal and perpendicular to the axis of the supporting shaft, one side of the upper side and the lower side of the inner wall of the outer frame is provided with smooth surfaces, the other side of the inner wall of the outer frame is provided with teeth which are meshed with the gear, a flange for clamping the gear is arranged on the outer frame, a guide rail is arranged at the bottom of the outer frame, and the outer frame slides on the guide rail;
when the guide rail moves reciprocally along the axis direction of the support shaft, the disc on the support shaft pulls the rubber lifting lug reciprocally.
Further, the power unit also comprises a first motor, a rotary table arranged at the output end of the first motor, a shifting column eccentrically arranged on the rotary table and a vertical groove plate positioned at the outer side of the shifting column, wherein the vertical groove plate is connected with the outer frame through a lever structure.
Further, the lever structure is including stand, telescopic link and the sleeve pipe of rotation installation on the stand that plays the supporting role, and sheathed tube one end slides and alternates there is first slide bar, and first slide bar rotates with the frame to be connected, and sheathed tube other end slides and alternates there is the second slide bar, and the telescopic link is upper and lower distribution with the sleeve pipe, and the one end of telescopic link is rotated and is installed on the frame, all rotates on the other end of telescopic link and the second slide bar and is equipped with the connection pad, and the perpendicular frid is located between two connection pads and fixed connection each other.
Further, the stand bottom is fixed with the slider, and the slider bottom is equipped with the movable table, and the slider slides along back shaft axis direction on the movable table, and the guide rail is fixed on the movable table, is provided with second motor and the first threaded rod that is used for providing power for the removal of slider on the movable table, and the one end of first threaded rod is connected with the output of second motor, and the other end of first threaded rod passes the slider and mutual threaded connection.
Further, the power unit still includes arcuate plate and steering column, and the mobile station passes arcuate plate and relative slip, is provided with the cylinder on the steering column, and the steering column supports the cylinder, first motor bottom is provided with the bottom plate, and the bottom plate bottom eccentric is provided with first vertical axis and second vertical axis, and first vertical axis rotates to be installed on arcuate plate, and the second vertical axis is connected with the output of cylinder.
Further, be provided with the arc slide rail on the arcuate board, the centre of a circle and the coincidence of first vertical axis of arc slide rail, the sliding is provided with the slide on the arc slide rail, and the slide is connected with the second vertical axis.
Further, the detection device also comprises a base frame, the moving table is slidably arranged on the base frame, the cambered plate is fixed on the base frame, and the rotating column is rotatably arranged on the base frame;
The supporting shaft is sleeved with a right-angle frame, the right-angle frame is fixed on the base frame through a connecting sleeve, the moving table is connected with the base frame through an elastic sheet, a baffle plate used for limiting the moving table is arranged on the moving table, a flitch is arranged on the end face, far away from the disc, of the moving table in a contact mode, and the flitch is fixed on the fixed end of the air cylinder.
Further, a sliding groove is formed in the end face of the disc, the supporting plate is slidably mounted in the sliding groove, a second threaded rod is rotatably arranged in the sliding groove, the second threaded rod penetrates through the supporting plate and is in threaded connection, the end portion of the second threaded rod extends out of the disc, and the second threaded rod is locked with the disc through a lock nut.
The invention has the advantages that:
The device not only can simulate the torsional fatigue of the rubber lifting lug under dynamic load, but also can perform elastic reciprocating tensile fatigue test, so that a plurality of test works of the rubber lifting lug are realized, thereby obtaining more accurate test results, and the device can better simulate the complex working condition of an automobile in the actual use process by making the rubber lifting lug perform reciprocating torsion and stretching, and the practical significance of the test is improved; the device has the advantages of simple structure, convenient operation, capability of realizing the test by manually or automatically controlling the reciprocating motion of the outer frame on the guide rail, reduction of operation difficulty, capability of overcoming the limitation of the traditional static loading mode, capability of effectively evaluating the fatigue resistance of the rubber lifting lug and contribution to improving the quality control level of automobile parts.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the power unit of FIG. 1;
FIG. 3 is a schematic view of the explosive structure of FIG. 2;
FIG. 4 is an enlarged cross-sectional structural schematic view of the outer frame of FIG. 3;
FIG. 5 is an enlarged schematic view of the mobile station of FIG. 3;
FIG. 6 is an enlarged schematic view of the arcuate plate of FIG. 3;
FIG. 7 is an enlarged schematic view of the arcuate plate of FIG. 6;
FIG. 8 is an enlarged schematic view of the disk of FIG. 3 from another perspective;
The device comprises the following components of a power unit, wherein the power unit comprises the following components of 1, a disc, 2, a supporting plate, 3, a plunger, 4, a supporting shaft, 5, a gear, 6, an outer frame, 7, a flange, 8, a guide rail, 9, a first motor, 10, a rotary table, 11, a shifting post, 12, a vertical groove plate, 13, a column, 14, a sleeve, 15, a first sliding rod, 16, a second sliding rod, 17, a telescopic rod, 18, a connecting disc, 19, a moving table, 20, a sliding block, 21, a second motor, 22, a first threaded rod, 23, a cambered plate, 24, a rotating post, 25, a cylinder, 26, a bottom plate, 27, a first vertical shaft, 28, a second vertical shaft, 29, an arc-shaped sliding rail, 30, a sliding seat, 31, a base frame, 32, a connecting sleeve, 33, a right angle frame, 34, a spring plate, 35, a baffle, 36, a pasting plate, 37, a second threaded rod, 38, a locking nut, 39, a long opening, 40, a limiting plate, 41 and the power unit.
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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated as being "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships based on the drawings are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. This example was written in a progressive manner.
As shown in fig. 1 to 8, the anti-fatigue detection device for the suspension structure of the automobile chassis comprises two discs 1 and a group of power units 41, wherein one disc 1 is fixed in position, the other disc 1 is driven to move by the power units 41, each disc 1 is provided with a supporting plate 2, the two supporting plates 2 are positioned between the two discs 1, each supporting plate 2 is provided with a plug post 3, and the two plug posts 3 are used for penetrating through two round holes on a rubber lifting lug so as to fix the rubber lifting lug;
the power unit 41 comprises a supporting shaft 4 coaxially arranged on the disc 1, a gear 5 is arranged on the supporting shaft 4, an outer frame 6 is arranged on the outer side of the gear 5, the length direction of the outer frame 6 is horizontal and is perpendicular to the axis of the supporting shaft 4, one side of the upper side and the lower side of the inner wall of the outer frame 6 is provided with smooth surfaces, the other side of the inner wall of the outer frame 6 is provided with teeth, the teeth are meshed with the gear 5, a flange 7 for clamping the gear 5 is arranged on the outer frame 6, a guide rail 8 is arranged at the bottom of the outer frame 6, and the outer frame 6 slides on the guide rail 8;
When the outer frame 6 slides reciprocally on the guide rail 8, the outer frame 6 pushes the gear 5 and the support shaft 4 to rotate, the rubber lifting lug twists reciprocally, and when the guide rail 8 moves reciprocally along the axis direction of the support shaft 4, the disc 1 on the support shaft 4 pulls the rubber lifting lug reciprocally.
In detail, two discs 1 are distributed relatively in the horizontal direction, one disc 1 is fixed in position, the other disc 1 can drive to move through a power unit 41, two inserting columns 3 between the two discs 1 are used for inserting two round holes in a rubber lifting lug, two supporting plates 2 are used for supporting the two inserting columns 3, and the supporting plates 2 lift the rubber lifting lug, therefore, in the structure shown in fig. 1, the two supporting plates 2 and the two inserting columns 3 on the two discs 1 can realize fixed work on the rubber lifting lug, a supporting shaft 4 is used for supporting a gear 5 and the disc 1, an outer frame 6 is square, the length direction of the outer frame 6 is horizontal, two flanges 7 are arranged on the upper wall and the lower wall on the inner side of the outer frame 6, the two flanges 7 are positioned on two end faces of the gear 5, thus, clamping locking work can be realized on the gear 5 and the outer frame 6 through the flanges 7, and a guide rail 8 can play a guiding role on the outer frame 6.
When testing the rubber lug, alternate the rubber lug on two inserted posts 3, the central point of rubber lug and the axis coincidence of disc 1, through the reciprocating motion of frame 6 on guide rail 8, can make gear 5 and back shaft 4 carry out reciprocating rotation, disc 1 of rubber lug one side is fixed, the reciprocating rotation of disc 1 of its opposite side, thereby drive the rubber lug and carry out reciprocating torsion motion, realize the test work to its torsion fatigue, and the number of turns of turning can be confirmed by frame 6 movement section, after the rubber lug carries out regular time or prescribed number of times of turns, frame 6 stops moving on guide rail 8, at this moment along back shaft 4 axis direction reciprocating motion guide rail 8, guide rail 8 can drive gear 5 synchronous motion through frame 6 and flange 7, gear 5 can pull the rubber lug through back shaft 4 and disc 1 and carry out elasticity reciprocating stretching motion, thereby carry out the tensile fatigue test to it, thereby realized the multiple test work to the rubber lug.
The device not only can simulate the torsional fatigue of the rubber lifting lug under dynamic load, but also can perform elastic reciprocating tensile fatigue test, so that a plurality of test works of the rubber lifting lug are realized, thereby obtaining more accurate test results, and the device can better simulate the complex working condition of an automobile in the actual use process by making the rubber lifting lug perform reciprocating torsion and stretching, and the practical significance of the test is improved; the device has the advantages of simple structure, convenient operation, capability of realizing the test by manually or automatically controlling the reciprocating motion of the outer frame 6 on the guide rail 8, and reduction of operation difficulty, and in summary, the fatigue resistance detection device overcomes the limitation of the traditional static loading mode, provides a test means which is more close to the actual use condition, can effectively evaluate the fatigue resistance of the rubber lifting lug, and is beneficial to improving the quality control level of automobile parts.
Further, the power unit 41 further comprises a first motor 9, a rotary table 10 installed on the output end of the first motor 9, a shifting column 11 eccentrically installed on the rotary table 10, and a vertical groove plate 12 positioned on the outer side of the shifting column 11, wherein the vertical groove plate 12 is connected with the outer frame 6 through a lever structure.
In detail, a baffle disc can be arranged at the end part of the shifting column 11 so as to limit the shifting column 11 and the vertical groove plate 12, the vertical groove plate 12 is vertical, the first motor 9 can drive the shifting column 11 to perform rotary motion through the rotary disc 10, and the shifting column 11 can shift the vertical groove plate 12 to perform reciprocating motion along the length direction of the outer frame 6 due to the fact that the vertical groove plate 12 is vertical, the shifting column 11 synchronously performs vertical sliding in the vertical groove plate 12, and the vertical groove plate 12 pushes the outer frame 6 to perform reciprocating motion on the guide rail 8 through a lever structure so as to provide power for torsion fatigue test of the rubber lifting lugs.
Further, the lever structure comprises a stand column 13, a telescopic rod 17 and a sleeve 14 rotatably installed on the stand column 13, wherein the stand column 13 is supported, one end of the sleeve 14 is slidably inserted with a first sliding rod 15, the first sliding rod 15 is rotatably connected with the outer frame 6, the other end of the sleeve 14 is slidably inserted with a second sliding rod 16, the telescopic rod 17 and the sleeve 14 are vertically distributed, one end of the telescopic rod 17 is rotatably installed on the outer frame 6, connecting discs 18 are rotatably arranged on the other end of the telescopic rod 17 and the second sliding rod 16, and the vertical groove plates 12 are positioned between the two connecting discs 18 and are fixedly connected with each other.
In detail, the upright posts 13 support the sleeve 14, the telescopic rods 17 can enable the connection between the vertical groove plates 12 and the outer frame 6 to be more stable, and the direction of the vertical groove plates 12 is unchanged because the axial direction of the shifting column 11 is unchanged when the rotating disc 10 drives the shifting column 11 to move, and at the moment, the connection disc 18 is required to be used for realizing the connection work between the vertical groove plates 12 and the lever structure because the lever structure is required to swing.
When the vertical groove plate 12 moves along the length direction of the outer frame 6, the vertical groove plate 12 pushes the sleeve 14 to rotate on the upright post 13 through the second sliding rod 16, the sleeve 14 can push the outer frame 6 to move in the opposite direction through the first sliding rod 15, so that reciprocating power is provided for the outer frame 6, and when the sleeve 14 rotates on the upright post 13, the first sliding rod 15 and the second sliding rod 16 slide relative to the sleeve 14, and meanwhile, the movement of the vertical groove plate 12 and the outer frame 6 can drive the telescopic rod 17 to perform telescopic movement.
Further, a sliding block 20 is fixed at the bottom of the upright post 13, a moving table 19 is arranged at the bottom of the sliding block 20, the sliding block 20 slides on the moving table 19 along the axial direction of the supporting shaft 4, the guide rail 8 is fixed on the moving table 19, a second motor 21 and a first threaded rod 22 for providing power for the movement of the sliding block 20 are arranged on the moving table 19, one end of the first threaded rod 22 is connected with the output end of the second motor 21, and the other end of the first threaded rod 22 penetrates through the sliding block 20 and is mutually in threaded connection.
In detail, the moving table 19 can provide support for the upright 13 and the guide rail 8, and since the position of the upright 13 is adjustable, the rotation reference point of the sleeve 14 is adjustable, so that when the turntable 10 rotates, the amplitude of the reciprocating motion of the outer frame 6 is shifted by the shifting column 11 to change, and the number of turns of the rubber lifting lug during reciprocating torsion is adjusted.
The second motor 21 can push the sliding block 20 to move through the first threaded rod 22, so that the sliding block 20 drives the upright post 13 to move along the axial direction of the supporting shaft 4, and at the moment, the first sliding rod 15 and the second sliding rod 16 both slide relatively to the sleeve 14.
Further, the power unit 41 further comprises a cambered plate 23 and a rotating column 24, the moving platform 19 penetrates through the cambered plate 23 and slides relatively, a cylinder 25 is arranged on the rotating column 24, the rotating column 24 supports the cylinder 25, a bottom plate 26 is arranged at the bottom of the first motor 9, a first vertical shaft 27 and a second vertical shaft 28 are eccentrically arranged at the bottom of the bottom plate 26, the first vertical shaft 27 is rotatably arranged on the cambered plate 23, and the second vertical shaft 28 is connected with the output end of the cylinder 25.
In detail, the arcuate plate 23 guides and supports the moving table 19, the rotary column 24 guides and supports the cylinder 25, and the base plate 26 and the first motor 9 thereon can rotate about the axis of the first vertical shaft 27, thereby adjusting the directions of the dial 10 and the dial 11.
When the twisting test of the rubber lifting lug is carried out, the axis of the rotary table 10 coincides with the axis of the supporting shaft 4, the air cylinder 25 is in an elongation state, and the first motor 9 operates and normally toggles the outer frame 6 to reciprocate on the guide rail 8.
When the pulling test of the rubber lifting lug is carried out, the air cylinder 25 is contracted, the air cylinder 25 drives the bottom plate 26 to rotate by taking the axis of the first vertical shaft 27 as a rotating shaft through the second vertical shaft 28, the bottom plate 26 drives the first motor 9 and the rotary table 10 to synchronously move, so that the direction of the first motor 9 and the rotary table 10 is regulated, the axis of the rotary table 10 is vertical to the axis of the supporting shaft 4, the vertical surface where the moving track of the pulling post 11 is located coincides with the axis of the supporting shaft 4, the first sliding rod 15 and the second sliding rod 16 are both in an extended maximum state on the sleeve 14, at the moment, when the first motor 9 operates, the pulling post 11 can drive the vertical groove plate 12 to reciprocate along the axis direction of the supporting shaft 4, the vertical groove plate 12 can drive the outer frame 6 to reciprocate along the axis direction of the supporting shaft 4 through the lever structure, the outer frame 6 drives the moving table 19 to synchronously move through the guide rail 8, and the lever structure is in a static state on the moving table 19.
In actual use, a long opening 39 communicated with the inside of the sleeve 14 can be formed in the sleeve 14, two limiting plates 40 are arranged in the long opening 39, and the two limiting plates 40 are respectively connected with the first slide bar 15 and the second slide bar 16, so that the moving positions of the first slide bar 15 and the second slide bar 16 on the sleeve 14 are limited by the long opening 39 and the limiting plates 40, and the total length of the sleeve 14, the first slide bar 15 and the second slide bar 16 is limited.
Further, an arc-shaped sliding rail 29 is arranged on the arc-shaped plate 23, the circle center of the arc-shaped sliding rail 29 coincides with the axis of the first vertical shaft 27, a sliding seat 30 is arranged on the arc-shaped sliding rail 29 in a sliding mode, and the sliding seat 30 is connected with the second vertical shaft 28.
In detail, when the base plate 26 rotates on the first vertical axis 27, the slider 30 slides on the arc-shaped slide rail 29, thereby providing an auxiliary supporting effect to the base plate 26 and the first motor 9 by using the arc-shaped slide rail 29 and the slider 30.
Further, the detecting device further comprises a base frame 31, the moving table 19 is slidably mounted on the base frame 31, the cambered plate 23 is fixed on the base frame 31, and the rotating column 24 is rotatably mounted on the base frame 31;
The supporting shaft 4 is sleeved with a right-angle frame 33, the right-angle frame 33 is fixed on the base frame 31 through a connecting sleeve 32, the moving table 19 is connected with the base frame 31 through a spring piece 34, a baffle 35 used for limiting the moving table 19 is arranged on the moving table 19, a flitch 36 is arranged on the end face, far away from the disc 1, of the moving table 19 in a contact manner, and the flitch 36 is fixed on the fixed end of the air cylinder 25.
In detail, the disc 1 in a fixed state is mounted on the base frame 31, the connecting sleeve 32 and the right-angle frame 33 can support the supporting shaft 4 and the disc 1 thereon, when the rubber lifting lug performs a twisting test, the elastic sheet 34 pushes the baffle 35 on the mobile station 19 to be abutted against the arched plate 23, the position of the mobile station 19 is fixed at the moment, the flitch 36 on the air cylinder 25 is contacted with the end face of the mobile station 19, so that the position of the mobile station 19 is further limited, when the test mode is exchanged, the air cylinder 25 is contracted, the air cylinder 25 drives the flitch 36 thereon to deviate from the mobile station 19, and when the first motor 9 operates, the elastic force of the elastic sheet 34 is overcome and the mobile station 19 is pushed to pass through the arched plate 23 to perform reciprocating motion.
By providing the shutter 35 and the attaching plate 36, the position of the movable table 19 can be locked when the cylinder 25 is in the extended state.
Further, a chute is formed in the end face of the disc 1, the supporting plate 2 is slidably mounted in the chute, a second threaded rod 37 is rotatably arranged in the chute, the second threaded rod 37 penetrates through the supporting plate 2 and is in threaded connection with the supporting plate, the end portion of the second threaded rod 37 extends out of the disc 1, and the second threaded rod 37 is locked with the disc 1 through a lock nut 38.
In detail, when testing the rubber lifting lugs with different thicknesses, in order to enable the center point of the rubber lifting lug to coincide with the axis of the disc 1, the position of the supporting plate 2 on the disc 1 needs to be adjusted, at the moment, the locking nut 38 is rotated and the second threaded rod 37 is rotated to push the supporting plate 2 to slide in the chute, and after the position adjustment of the supporting plate 2 is completed, the second threaded rod 37 is locked through the locking nut 38.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (4)
1. The anti-fatigue detection device for the suspension structure of the automobile chassis is characterized by comprising two discs and a group of power units, wherein one disc is fixed in position, the other disc is driven to move by the power units, each disc is provided with a supporting plate, the two supporting plates are positioned between the two discs, each supporting plate is provided with a plug post, and the two plug posts are used for penetrating through two round holes in a rubber lifting lug, so that the rubber lifting lug is fixed;
The power unit comprises a supporting shaft coaxially arranged on the disc, a gear is arranged on the supporting shaft, an outer frame is arranged on the outer side of the gear, the length direction of the outer frame is horizontal and perpendicular to the axis of the supporting shaft, one side of the upper side and the lower side of the inner wall of the outer frame is provided with smooth surfaces, the other side of the inner wall of the outer frame is provided with teeth which are meshed with the gear, a flange for clamping the gear is arranged on the outer frame, a guide rail is arranged at the bottom of the outer frame, and the outer frame slides on the guide rail;
When the guide rail moves reciprocally along the axial direction of the support shaft, a disc on the support shaft pulls the rubber lifting lug reciprocally;
The power unit further comprises a first motor, a rotary table arranged at the output end of the first motor, a shifting column eccentrically arranged on the rotary table and a vertical groove plate positioned at the outer side of the shifting column, wherein the vertical groove plate is connected with the outer frame through a lever structure;
The lever structure comprises an upright post with a supporting function, a telescopic rod and a sleeve pipe rotatably arranged on the upright post, wherein one end of the sleeve pipe is slidably inserted with a first sliding rod, the first sliding rod is rotatably connected with the outer frame, the other end of the sleeve pipe is slidably inserted with a second sliding rod, the telescopic rod and the sleeve pipe are vertically distributed, one end of the telescopic rod is rotatably arranged on the outer frame, the other end of the telescopic rod and the second sliding rod are rotatably provided with connecting discs, and a vertical groove plate is positioned between the two connecting discs and is fixedly connected with each other;
The bottom of the upright post is fixed with a sliding block, the bottom of the sliding block is provided with a moving table, the sliding block slides on the moving table along the axial direction of the supporting shaft, the guide rail is fixed on the moving table, the moving table is provided with a second motor and a first threaded rod, the second motor is used for providing power for the movement of the sliding block, one end of the first threaded rod is connected with the output end of the second motor, and the other end of the first threaded rod penetrates through the sliding block and is in threaded connection with each other;
the power unit further comprises a cambered plate and a rotating column, the movable table penetrates through the cambered plate and slides relatively, an air cylinder is arranged on the rotating column, the rotating column supports the air cylinder, a bottom plate is arranged at the bottom of the first motor, a first vertical shaft and a second vertical shaft are eccentrically arranged at the bottom of the bottom plate, the first vertical shaft is rotatably arranged on the cambered plate, and the second vertical shaft is connected with the output end of the air cylinder.
2. The anti-fatigue detection device for the suspension structure of the automobile chassis according to claim 1, wherein the cambered plate is provided with an arc-shaped sliding rail, the circle center of the arc-shaped sliding rail coincides with the axis of the first vertical shaft, the arc-shaped sliding rail is provided with a sliding seat in a sliding manner, and the sliding seat is connected with the second vertical shaft.
3. The device for detecting fatigue resistance of a suspension structure of an automobile chassis according to claim 2, wherein the detecting device further comprises a base frame on which the moving table is slidably mounted, the arcuate plate is fixed on the base frame, and the rotating column is rotatably mounted on the base frame;
The supporting shaft is sleeved with a right-angle frame, the right-angle frame is fixed on the base frame through a connecting sleeve, the moving table is connected with the base frame through an elastic sheet, a baffle plate used for limiting the moving table is arranged on the moving table, a flitch is arranged on the end face, far away from the disc, of the moving table in a contact mode, and the flitch is fixed on the fixed end of the air cylinder.
4. The anti-fatigue detection device for the suspension structure of the automobile chassis according to claim 3, wherein the end face of the disc is provided with a sliding groove, the supporting plate is slidably arranged in the sliding groove, a second threaded rod is rotatably arranged in the sliding groove, the second threaded rod penetrates through the supporting plate and is in threaded connection, the end part of the second threaded rod extends out of the disc, and the second threaded rod and the disc are locked through a locking nut.
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| CN202411292441.3A CN118857793B (en) | 2024-09-14 | 2024-09-14 | A kind of anti-fatigue detection device for automobile chassis suspension structure |
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| CN219957200U (en) * | 2023-02-08 | 2023-11-03 | 上理检测技术(上海)有限公司 | Dynamic torsion testing mechanism |
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| JP5334056B2 (en) * | 2009-09-15 | 2013-11-06 | 学校法人福岡大学 | Fatigue testing machine |
| CN103512803B (en) * | 2013-09-26 | 2016-08-17 | 吉林大学 | Multi-load multiple physical field coupling material Micro Mechanical Properties in-situ test instrument |
| CN210571360U (en) * | 2019-12-01 | 2020-05-19 | 河北佰特橡胶有限公司 | Fatigue test device for rubber lifting lugs of exhaust system |
| CN114778321A (en) * | 2022-05-11 | 2022-07-22 | 徐州工业职业技术学院 | Rubber tension-torsion fatigue comprehensive testing machine based on Peltier effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN219957200U (en) * | 2023-02-08 | 2023-11-03 | 上理检测技术(上海)有限公司 | Dynamic torsion testing mechanism |
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