CN110095362B - Spare part fatigue strength testboard - Google Patents

Spare part fatigue strength testboard Download PDF

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Publication number
CN110095362B
CN110095362B CN201910422117.1A CN201910422117A CN110095362B CN 110095362 B CN110095362 B CN 110095362B CN 201910422117 A CN201910422117 A CN 201910422117A CN 110095362 B CN110095362 B CN 110095362B
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platform
loading
plate
mechanical parts
hydraulic
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CN110095362A (en
Inventor
崔晋波
湛小梅
曹中华
李亚丽
杨清慧
冯伟
张先锋
周玉华
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Chongqing Academy of Agricultural Sciences
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Chongqing Academy of Agricultural Sciences
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • G01N3/04Chucks
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • G01N3/36Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001Type of application of the stress
    • G01N2203/0005Repeated or cyclic
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003Generation of the force
    • G01N2203/0042Pneumatic or hydraulic means
    • G01N2203/0048Hydraulic means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/0069Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0073Fatigue
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/0202Control of the test
    • G01N2203/0206Means for supplying or positioning specimens or exchangeable parts of the machine such as indenters...
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/04Chucks, fixtures, jaws, holders or anvils
    • G01N2203/0482Chucks, fixtures, jaws, holders or anvils comprising sensing means

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention provides a part fatigue strength test bench, and relates to the technical field of mechanical tests. The part fatigue strength test bench is used for testing the fatigue strength of mechanical parts and comprises a platform body, a control device, a hydraulic loading device and a movable support; the movable support and the hydraulic loading equipment are arranged on the platform body, the platform body is used for placing mechanical parts, the movable support is used for fixing the mechanical parts and adjusting the installation angles of the mechanical parts, and the hydraulic loading equipment is used for applying loads to the mechanical parts; the hydraulic loading device is electrically connected with the control device, and the control device is used for controlling the hydraulic loading device so that the hydraulic loading device applies load to the mechanical part. The part fatigue strength test bench provided by the invention adopts a visual panel operation platform, is simple to operate, has high safety and reliability, and can accurately and efficiently complete the fatigue strength test of mechanical parts.

Description

Spare part fatigue strength testboard
Technical Field
The invention relates to the technical field of mechanical testing, in particular to a part fatigue strength testing platform.
Background
Fatigue strength refers to the maximum stress at which a material can be subjected to an infinite number of alternating loads without failure, and is referred to as the fatigue strength or fatigue limit. A ridge crop harvester is agricultural equipment for harvesting ridge crops and is widely applied to the field of agriculture. The digging shovel of the ridge culture crop harvester is a key mechanical part of the digging shovel, and is quite necessary for carrying out fatigue strength test. The invention mainly provides a device capable of testing the fatigue strength of mechanical parts, so that the mechanical parts are convenient to design and manufacture, and the service life of the mechanical parts is prolonged.
Disclosure of Invention
Based on the motivation, the invention provides a part fatigue strength test bench which adopts a visual panel operation platform, is simple to operate, has high safety and reliability, and can accurately and efficiently complete the fatigue strength test of mechanical parts.
A part fatigue strength test bench is used for testing the fatigue strength of mechanical parts and comprises a platform body, a control device, a hydraulic loading device and a movable support;
the movable support and the hydraulic loading equipment are both arranged on the platform body, the platform body is used for placing the mechanical parts, the movable support is used for fixing the mechanical parts and adjusting the installation angle of the mechanical parts, and the hydraulic loading equipment is used for applying loads to the mechanical parts;
the hydraulic loading device is electrically connected with the control device, and the control device is used for controlling the hydraulic loading device so that the hydraulic loading device applies load to the mechanical part.
The invention provides a test bench for fatigue strength of parts, which comprises: the platform body is used for installing hydraulic loading equipment and a movable support, and the movable support is used for fixing mechanical parts. When the movable support fixes the mechanical part, the angle of the mechanical part can be fixed through the movable support, so that the control device is used for controlling the hydraulic loading device, and the hydraulic recording device acts on the mechanical part according to the set load. The part fatigue strength test bench provided by the embodiment adopts a visual panel operation platform, is simple to operate, has high safety and reliability, and can accurately and efficiently complete the fatigue strength test of mechanical parts.
Further, in a possible implementation manner, the platform body includes a first platform and a second platform connected to each other, the hydraulic loading device is installed on the first platform, the movable support is installed on the second platform, and the hydraulic loading device is capable of acting on the mechanical component located on the second platform.
Further, in a possible embodiment, a loading hole is arranged between the first platform and the second platform, and the hydraulic loading device can be stretched and contracted in the loading hole; the number of the loading holes corresponds to the number of the output shafts of the hydraulic loading equipment, or the output shafts of the hydraulic loading equipment can stretch and retract in the loading holes.
Further, in a possible implementation manner, the second platform includes a first mounting plate, a second mounting plate, and a supporting plate, the first mounting plate is opposite to the second mounting plate, two ends of the supporting plate are respectively connected to the first mounting plate and the second mounting plate, the supporting plate is connected to the first platform and forms the loading hole, the movable bracket is respectively connected to the first mounting plate and the second mounting plate, and both the first mounting plate and the second mounting plate are used for fixing the mechanical component.
Further, in a possible implementation, the second platform still includes the regulating plate, the regulating plate movably fixes first mounting panel with on the second mounting panel, the regulating plate with the backup pad sets up just relatively the regulating plate with be provided with between the backup pad and be used for the holding machine parts's test space, movable support is located the regulating plate with between the backup pad, the regulating plate is used for fixing machine parts.
Further, in a possible implementation manner, the hydraulic loading device includes a plurality of hydraulic cylinders and loading heads corresponding to the number of the hydraulic cylinders, the loading heads are disposed on output shafts of the hydraulic cylinders, controllers of the hydraulic cylinders are electrically connected to the control device, and the control device is configured to control the controllers of the hydraulic cylinders, so that the loading heads apply loads to the mechanical component.
Further, in a possible implementation manner, the loading head is provided with an installation part, the installation part is used for being fixedly connected with the mechanical part, and the installation part is used for applying a load to the mechanical part.
Further, in a possible embodiment, the part fatigue strength test bench further comprises an angle sensor, wherein the angle sensor is mounted on the movable bracket and electrically connected with the control device; the angle sensor is used for detecting the angle information of the movable support and transmitting the angle information to the control equipment.
Further, in a possible implementation manner, the movable support comprises an angle adjusting plate and a fixed support, both of which are arranged on the platform body, the fixed support is used for fixing the mechanical part, and the angle adjusting plate is used for adjusting the installation angle of the mechanical part.
Further, in a possible embodiment, the angle adjusting plate includes a support portion and an adjusting portion, the adjusting portion is connected to the support portion, the adjusting portion is close to the fixing bracket, and the adjusting portion can be rotationally fixed relative to the support portion.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of a part fatigue strength test bench according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second platform according to an embodiment of the present invention.
Fig. 3 is a block diagram illustrating a structure of a part fatigue strength testing platform according to an embodiment of the present invention when testing a mechanical part.
Icon:
10-a part fatigue strength test bench; 100-a platform body; 110-a first platform; 120-a second platform; 121-a first mounting plate; 122-a second mounting plate; 123-a support plate; 124-adjusting plate; 130-a loading well; 200-a control device; 300-hydraulic loading equipment; 310-a hydraulic cylinder; 320-a loading head; 400-a movable support; 410-angle adjusting plate; 420-a fixed support; 20-mechanical parts.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Referring to fig. 1 to fig. 3, fig. 1 and fig. 2 are schematic structural diagrams of a part fatigue strength testing platform 10 according to the present embodiment, and fig. 3 is a schematic structural diagram of a mechanical part 20 acting thereon.
The embodiment provides a part fatigue strength test bench 10 as shown in fig. 1, which adopts a visual panel operation platform, is simple to operate, has high safety and reliability, and can accurately and efficiently complete the fatigue strength test of a mechanical part 20.
It should be noted that the mechanical component 20 for testing may be a digging shovel of a ridge crop harvester, which is an important and critical mechanical component 20 for harvesting ridge crops, and the fatigue strength of which is directly related to the reliability and safety of the whole machine. The fatigue strength of the digging shovel can be effectively analyzed by analyzing the fatigue strength of the digging shovel through the part fatigue strength test bench 10 provided by the embodiment, so that the fatigue strength test is completed, the design of the digging shovel is facilitated, and the harvesting of ridge culture crops is facilitated.
In the present embodiment, the part fatigue strength test stand 10 includes a platform body 100, a control device 200, a hydraulic loading device 300, and a movable bracket 400. The movable support 400 and the hydraulic loading device 300 are both arranged on the platform body 100, the platform body 100 is used for placing the mechanical part 20, the movable support 400 is used for fixing the mechanical part 20 and adjusting the installation angle of the mechanical part 20, and the hydraulic loading device 300 is used for applying a load to the mechanical part 20. The hydraulic pressure loading apparatus 300 is electrically connected to the control apparatus 200, and the control apparatus 200 is configured to control the hydraulic pressure loading apparatus 300 so that the hydraulic pressure loading apparatus 300 applies a load to the mechanical part 20.
It should be noted that the platform body 100 is used for installing the hydraulic loading device 300 and the movable bracket 400, and the movable bracket 400 is used for fixing the mechanical component 20. The control apparatus 200 is used to control the hydraulic pressure applying apparatus 300 so that the hydraulic pressure recording apparatus acts on the machine part 20 in accordance with a set load by fixing the angle of the machine part 20 by the movable bracket 400 while the movable bracket 400 fixes the machine part 20. The part fatigue strength test bench 10 provided by the embodiment adopts a visual panel operation platform, is simple to operate, has high safety and reliability, and can accurately and efficiently complete the fatigue strength test of the mechanical part 20.
In this embodiment, the platform body 100 includes a first platform 110 and a second platform 120 connected to each other, the hydraulic loading device 300 is mounted on the first platform 110, the movable support 400 is mounted on the second platform 120, and the hydraulic loading device 300 can act on the mechanical component 20 on the second platform 120.
That is, in the present embodiment, the first platform 110 is used to support various parts including the hydraulic loading apparatus 300, the second platform 120, the movable bracket 400, and the mechanical part 20 to be tested, and the second platform 120 is used to mount the mechanical part 20. The safety of the fatigue strength test can be further improved by arranging the first platform 110 and the second platform 120, and the process of the fatigue strength test can be conveniently observed and known by a tester.
Alternatively, the first platform 110 is provided with a support for supporting the first platform 110 and the second platform 120, and the second platform 120 is used for mounting and fixing the mechanical part 20, and can make the mounting step more convenient. The first platform 110 and the second platform 120 can be used for visualizing the fatigue strength test of the mechanical part 20, so that the accuracy is improved, and the fatigue strength test is performed more efficiently.
Further, a loading hole 130 is provided between the first platform 110 and the second platform 120, and the hydraulic loading device 300 can be extended and retracted in the loading hole 130.
It should be noted that the loading hole 130 between the first platform 110 and the second platform 120 is used for allowing the hydraulic loading device 300 to pass through, so that the hydraulic loading device 300 loads the mechanical part 20 to be tested on the second platform 120 according to the set load.
Meanwhile, it is also understood that the number of the loading holes 130 corresponds to the number of the output shafts of the hydraulic loading device 300, or the output shafts of the hydraulic loading device 300 can be extended and contracted in the loading holes 130. That is, for the embodiment having a plurality of hydraulic loading devices 300, the loading holes 130 may correspond to the number of the output ends of the hydraulic loading devices 300 one by one, or the loading hole 130 may be a larger hole, and all or part of the output ends of the hydraulic loading devices 300 may move telescopically in the same hole with a larger aperture. That is, the loading holes 130 and the hydraulic loading devices 300 may be in one-to-one correspondence, and two or more hydraulic loading devices 300 may correspond to the same loading hole 130.
In this embodiment, the second platform 120 includes a first mounting plate 121, a second mounting plate 122 and a supporting plate 123, the first mounting plate 121 is opposite to the second mounting plate 122, two ends of the supporting plate 123 are respectively connected to the first mounting plate 121 and the second mounting plate 122, the supporting plate 123 is connected to the first platform 110 and forms a loading hole 130, the movable bracket 400 is respectively connected to the first mounting plate 121 and the second mounting plate 122, and both the first mounting plate 121 and the second mounting plate 122 are used for fixing the mechanical component 20.
Alternatively, the second platform 120 is integrally formed, or the first mounting plate 121, the second mounting plate 122 and the support plate 123 are welded or bolted.
In addition, it should be noted that the supporting plate 123 and the first platform 110 form the loading hole 130, or the supporting plate 123 may be provided with the loading hole 130, and both of the above manners are within the scope of the present invention.
Further, at least one of the first mounting plate 121 and the second mounting plate 122 is provided with a mounting portion for mounting the mechanical component 20, and the mounting portion may be clamped with the mechanical component 20, or bolted, or a combination of clamping and bolting. When the first mounting plate 121 and the second mounting plate 122 are both provided with the mounting portions, the positions of the mounting portions on the first mounting plate 121 and the mounting portions on the second mounting plate 122 may be set relatively, so that the corresponding positions of the mechanical parts 20 are both fixed by the mounting portions.
In addition, in this embodiment, the second platform 120 further includes an adjusting plate 124, the adjusting plate 124 is movably fixed on the first mounting plate 121 and the second mounting plate 122, the adjusting plate 124 is disposed opposite to the supporting plate 123, a testing space for accommodating the mechanical component 20 is disposed between the adjusting plate 124 and the supporting plate 123, the movable bracket 400 is disposed between the adjusting plate 124 and the supporting plate 123, and the adjusting plate 124 is used for fixing the mechanical component 20.
It should be noted that, the connection manner between the adjusting plate 124 and the first and second mounting plates 121 and 122 may be a combination of sliding connection and bolt connection, and the sliding connection and the bolt connection between the plate-shaped object and another plate-shaped object that is relatively arranged at an interval are the prior art, and are not described again based on this.
In this embodiment, the movable bracket 400 includes an angle adjustment plate 410124 and a fixed bracket 420 both disposed on the platform body 100, the fixed bracket 420 is used for fixing the mechanical component 20, and the angle adjustment plate 410124 is used for adjusting the installation angle of the mechanical component 20.
The angle adjusting plate 410124 can be adjusted by a pivot, and the angle adjusting plate 410124 is connected with the fixed bracket 420 in a rotating way and then is pressed and fixed by the pivot. The pivot may be threaded for adjustment and adjustment to adjust or fix the angle of the angle adjustment plate 410124.
Optionally, the angle adjustment plate 410124 includes a support portion and an adjustment portion, the adjustment portion is connected to the support portion, the adjustment portion is adjacent to the fixing bracket 420, and the adjustment portion can be rotationally fixed relative to the support portion.
Optionally, the part fatigue strength testing table 10 further comprises an angle sensor, the angle sensor is mounted on the movable bracket 400 and electrically connected with the control device 200; the angle sensor is used to detect angle information of the movable stand 400 and transmit the angle information to the control device 200.
It should be noted that the angle sensor is used to detect the installation angle of the movable bracket 400 or the mechanical component 20 installed on the movable bracket 400, so as to adjust the mechanical component 20 to the set test angle.
In this embodiment, hydraulic loading apparatus 300 includes a plurality of hydraulic cylinders 310 and loading heads 320 corresponding to the number of hydraulic cylinders 310, where loading heads 320 are disposed on output shafts of hydraulic cylinders 310, a controller of hydraulic cylinders 310 is electrically connected to control apparatus 200, and control apparatus 200 is configured to control the controller of hydraulic cylinders 310 such that loading heads 320 apply a load to mechanical component 20.
Optionally, the loading head 320 is provided with a mounting portion, the mounting portion is used for being fixedly connected with the mechanical component 20, and the mounting portion is used for applying a load to the mechanical component 20.
In this embodiment, the control device 200 is a control box, and may also be externally connected to a computer that is easy to operate, and at this time, software for controlling parameters of the control box may be installed on the computer, and a function for feeding back real-time parameters of the mechanical component 20 in the fatigue strength test may also be provided.
The part fatigue strength test bench 10 provided in this embodiment: the platform body 100 is used for mounting the hydraulic loading device 300 and the movable support 400, and the movable support 400 is used for fixing the mechanical part 20. The control apparatus 200 is used to control the hydraulic pressure applying apparatus 300 so that the hydraulic pressure recording apparatus acts on the machine part 20 in accordance with a set load by fixing the angle of the machine part 20 by the movable bracket 400 while the movable bracket 400 fixes the machine part 20. The part fatigue strength test bench 10 provided by the embodiment adopts a visual panel operation platform, is simple to operate, has high safety and reliability, and can accurately and efficiently complete the fatigue strength test of the mechanical part 20.
It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", "left", "right", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship which the product of the present invention is usually placed in when in use, or the orientation or position relationship which is usually understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
It should also be noted that, in the description of the present invention, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (1)

1. A part fatigue strength test bench is used for testing the fatigue strength of mechanical parts and is characterized by comprising a platform body, a control device, a hydraulic loading device and a movable support;
the movable support and the hydraulic loading equipment are both arranged on the platform body, the platform body is used for placing the mechanical parts, the movable support is used for fixing the mechanical parts and adjusting the installation angle of the mechanical parts, and the hydraulic loading equipment is used for applying loads to the mechanical parts;
the hydraulic loading device is electrically connected with the control device, and the control device is used for controlling the hydraulic loading device so that the hydraulic loading device applies load to the mechanical part;
the platform body comprises a first platform and a second platform which are connected with each other, the hydraulic loading equipment is arranged on the first platform, the movable support is arranged on the second platform, and the hydraulic loading equipment can act on the mechanical parts on the second platform;
a loading hole is formed between the first platform and the second platform, and the hydraulic loading equipment can stretch out and draw back in the loading hole; the number of the loading holes corresponds to the number of the output shafts of the hydraulic loading equipment, or the output shafts of the hydraulic loading equipment can stretch and retract in the loading holes;
the second platform comprises a first mounting plate, a second mounting plate and a support plate, the first mounting plate is opposite to the second mounting plate, two ends of the support plate are respectively connected with the first mounting plate and the second mounting plate, the support plate is connected with the first platform and forms the loading hole, the movable support is respectively connected with the first mounting plate and the second mounting plate, and the first mounting plate and the second mounting plate are used for fixing the mechanical parts;
the second platform further comprises an adjusting plate which is movably fixed on the first mounting plate and the second mounting plate, the adjusting plate is arranged opposite to the support plate, a test space for accommodating the mechanical parts is arranged between the adjusting plate and the support plate, the movable support is located between the adjusting plate and the support plate, and the adjusting plate is used for fixing the mechanical parts;
the hydraulic loading equipment comprises a plurality of hydraulic cylinders and loading heads the number of which is consistent with that of the hydraulic cylinders, the loading heads are arranged on output shafts of the hydraulic cylinders, controllers of the hydraulic cylinders are electrically connected with the control equipment, and the control equipment is used for controlling the controllers of the hydraulic cylinders so that the loading heads apply loads to the mechanical parts;
the loading head is provided with an installation part, the installation part is used for being fixedly connected with the mechanical part, and the installation part is used for applying load to the mechanical part;
the part fatigue strength test bench further comprises an angle sensor, and the angle sensor is mounted on the movable support and electrically connected with the control equipment; the angle sensor is used for detecting the mounting angle of the movable support or the mechanical part mounted on the movable support, and transmitting the angle information to the control equipment so as to adjust the mechanical part to a set testing angle;
the movable support comprises an angle adjusting plate and a fixed support which are both arranged on the platform body, the fixed support is used for fixing the mechanical parts, and the angle adjusting plate is used for adjusting the installation angle of the mechanical parts;
the angle adjusting plate comprises a supporting portion and an adjusting portion, the adjusting portion is connected with the supporting portion, the adjusting portion is close to the fixed support, and the adjusting portion can be opposite to the supporting portion and can rotate and fix.
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CN203178077U (en) * 2013-02-08 2013-09-04 上海机动车检测中心 Test device used for testing mechanical property of vehicle component
CN203376165U (en) * 2013-06-26 2014-01-01 重庆建设摩托车股份有限公司 Clamping device applied to motorcycle frame fatigue strength test
CN203561509U (en) * 2013-10-28 2014-04-23 上海汇众汽车制造有限公司 Test combined bench for full-frame type auxiliary frame
CN105758740A (en) * 2016-04-06 2016-07-13 吉林大学 In-situ tester for mechanical property of small-size torsional fatigue material with controllable magnetic field intensity
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