CN206488997U - A kind of bolt shearing and tensile fatigue test machine - Google Patents

A kind of bolt shearing and tensile fatigue test machine Download PDF

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Publication number
CN206488997U
CN206488997U CN201720091634.1U CN201720091634U CN206488997U CN 206488997 U CN206488997 U CN 206488997U CN 201720091634 U CN201720091634 U CN 201720091634U CN 206488997 U CN206488997 U CN 206488997U
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CN
China
Prior art keywords
plate
hydraulic press
bolt
clamp assembly
hole
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Expired - Fee Related
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CN201720091634.1U
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Chinese (zh)
Inventor
李永强
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School Of Technical Engineering Lanzhou University Of Technology
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School Of Technical Engineering Lanzhou University Of Technology
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Abstract

The utility model discloses a kind of shearing of bolt and tensile fatigue test machine, including:Testing stand, beater mechanism, clamp assembly and hydraulic press, the clamp assembly include:Lower plate and upper plate, the upper plate are placed on above lower plate, and the upper plate includes left plate, middle plate and right panel, the left plate and right panel are separately positioned on middle plate both sides, it is respectively provided with left plate and right panel in through hole along its length on a semicircle orifice, upper plate, through hole and bolt is set;The hydraulic press includes horizontal hydraulic pressure machine and longitudinal hydraulic press, and the horizontal hydraulic pressure machine is arranged on the right side of clamp assembly, and longitudinal hydraulic press is arranged on immediately below clamp assembly, and lower plate bottom is welded and fixed link, and the link is fixedly connected with longitudinal hydraulic press.The utility model can simulate bolt respectively by shock loading, shearing continuous load and the operating mode for stretching continuous load, therefore can reduce business equipment input cost, and efficiently solve the problem of being difficult to take out after bolts bend.

Description

A kind of bolt shearing and tensile fatigue test machine
Technical field
The utility model is related to bolt mechanics performance testing equipment, specifically a kind of bolt shearing and tensile fatigue test Machine.
Background technology
Bolt is one of the most frequently used part in engineering goods, is mainly played the role of fastening.Reality of the bolt in engineering goods In operating mode, the impact of repetition or continuous load on are often run into, the failure of bolt can be caused, making for product is influenceed With, thus manufacturing and processing enterprise using sampling observation by the way of bolt is sheared and tensile strength test.
Impact fatigue testing machine is mainly used in the dynamic environmental test of product, can simulate actual shock pulse and impact Energy, the repeatability impact that simulation parts may be subject in use, to determine parts to various shock environments Adaptability.Its principle is:On the fixture that test specimen is arranged on to table surface, test specimen is carried together with workbench by hoisting mechanism It is raised to after predetermined altitude, test specimen and workbench free-electron model are impacted on the waveform generator of floor installation, produces rushing for needs Shock pulse.
Impact fatigue testing machine can only load shock loading, in some applying working conditions, bolt is continuously loaded, When needing continuous loading stress, impact fatigue testing machine just can not be simulated, in addition, impact fatigue testing machine can not also enter Row tension test, therefore enterprise generally requires the extra tensile test apparatus of outfit, equipment investment cost is larger.
Utility model content
The purpose of this utility model is to provide a kind of bolt shearing and tensile fatigue test machine, to solve above-mentioned background skill The problem of being proposed in art.
To achieve the above object, the utility model provides following technical scheme:
A kind of bolt shearing and tensile fatigue test machine, including:Testing stand, beater mechanism, clamp assembly and hydraulic press, institute Stating beater mechanism includes:The eccentric shaft for deviateing its center of circle, the company are set on eccentric wheel, connecting rod and stroke lever, the eccentric wheel One end of bar is connected on eccentric shaft, and the other end of connecting rod and the left end of stroke lever are hinged, stroke lever be horizontally disposed with, eccentric wheel by Power set drive;The clamp assembly includes:Lower plate and upper plate, the upper plate are placed on above lower plate, and the upper plate includes Left plate, middle plate and right panel, the left plate and right panel, which are separately positioned in middle plate both sides, left plate and right panel, is respectively provided with a semicircle Hole, the middle plate position relative with right panel with left plate also sets on first identical semicircle orifice, upper plate along its length logical respectively The position for being located at manhole in bolt, lower plate is set to be threaded through hole in hole, through hole;The hydraulic press includes horizontal hydraulic pressure Machine and longitudinal hydraulic press, the horizontal hydraulic pressure machine are arranged on the right side of clamp assembly, and longitudinal hydraulic press is arranged on clamp assembly Underface, lower plate bottom is welded and fixed link, and the link is fixedly connected with longitudinal hydraulic press.
It is used as further program of the utility model:Some dowel holes are respectively provided with the lower plate and testing stand, it is fixed Insertion located lateral pin in the pin-and-hole of position.
It is used as further program of the utility model:Pass through longitudinal register pin between the left and right sides of the middle plate and testing stand Connection.
It is used as further program of the utility model:The level of setting is fixedly installed on sliding block, sliding block on the stroke lever Guide rod is penetrated in through hole, through hole.
It is used as further program of the utility model:The power set are made up of motor and speed reducer, reductor it is defeated Enter the center of axle and output shaft respectively with motor shaft and eccentric wheel to be connected.
Compared with prior art, the beneficial effects of the utility model are:The utility model is rushed by being set on testing stand The hydraulic press of mechanism and two offer continuous loads is provided, bolt is simulated respectively by shock loading, shearing continuous load and stretching The operating mode of continuous load, the specimen method with three types, therefore business equipment input cost can be reduced, and efficiently solve The problem of being difficult to take out after bolts bend.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the overlooking the structure diagram of clamp assembly in the utility model.
Fig. 3 is the main structure diagram of clamp assembly in the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer in Fig. 1~3, the utility model embodiment, a kind of bolt shearing and tensile fatigue test machine, including:Examination Platform 1, beater mechanism, clamp assembly and hydraulic press are tested, the beater mechanism includes:Eccentric wheel 2, connecting rod 3 and stroke lever 6, it is described The eccentric shaft for deviateing its center of circle is set on eccentric wheel 2, and one end of the connecting rod 3 is connected on eccentric shaft, the other end of connecting rod 3 with The left end of stroke lever 6 is hinged, and stroke lever 6 is horizontally disposed with, and eccentric wheel 2 is driven by power set;The clamp assembly includes:Lower plate 71 and upper plate 78, the upper plate 78 is placed on the top of lower plate 71, and the upper plate 78 includes left plate 72, middle plate 74 and right panel 75, institute State left plate 72 and right panel 75 is separately positioned in the middle both sides of plate 74, left plate 72 and right panel 75 and is respectively provided with a semicircle orifice, middle plate 74 The position relative with right panel 75 with left plate 72 also sets first identical semicircle orifice respectively, by left plate 72 and right panel 75 respectively with middle plate Four semicircle orifices, then can be spliced into the through hole on two manholes 73, upper plate 78 along its length, through hole and set by 74 splicings Bolt 76 is put, left plate 72, middle plate 74 and right panel 75 can be tightened together, is set in lower plate 71 positioned at the position of manhole 73 Tapped through hole, in installation bolt sample 8, upper plate 78 is combined, then by bolt sample 8 through manhole 73 and install into In tapped through hole, subsequent start-up power set band movable eccentric wheel 2 is rotated, and drives stroke lever 6 to move left and right by connecting rod 3, and right Left plate 72 produces impact, the shock loading of simulation bolt sample 8;The hydraulic press includes horizontal hydraulic pressure machine 9 and longitudinal hydraulic press 11, the horizontal hydraulic pressure machine 9 is arranged on the right side of clamp assembly, and horizontal hydraulic pressure machine 9 is just to right panel 75, and horizontal hydraulic pressure machine 9 is to right panel 75 produce continuous pressure, and to simulate the continuous load of bolt sample 8, longitudinal hydraulic press 11 is being arranged on clamp assembly 7 just Lower section, the bottom of lower plate 71 is welded and fixed link 10, and the link 10 is fixedly connected with longitudinal hydraulic press 11, longitudinal hydraulic press 11 provide it is vertical to continuity load, lower plate 71 can be pulled down, so that bolt sample 8 is stretched stress, to simulate spiral shell The operating mode of the tension of bolt sample 8, so, whole device can both carry out scragging, can also carry out continuous load experiment, may be used also To carry out tension test, extra equipment is eliminated, in addition, after off-test, because bolt sample 8 is bent, now unclamping spiral shell Bolt 76, left plate 72 and right panel 75 are pulled down, back-outed by bolt sample 8, just will not bending and can not take out because of bolt sample 8 Problem.
Insertion located lateral in some dowel holes 77, dowel hole 77 is respectively provided with the lower plate 71 and testing stand 1 Pin 13, located lateral pin 13 bears shear stress, prevents the displacement of lower plate 71 transversely.
Connected between the left and right sides of the middle plate 74 and testing stand 1 by longitudinal register pin 12, before tension test is carried out, Longitudinal register pin 12 is inserted, upper plate 78 is fixed, lower plate 71 is then pulled downward on by longitudinal hydraulic press 11 again, bolt is tried The tension of sample 8.
It is fixedly installed on the stroke lever 6 in the through hole that level is set on sliding block 5, sliding block 5, through hole and penetrates guide rod 4, sliding block 5 move left and right with stroke lever 6, and guide rod 4 limits the skew of stroke lever 6, it is moved in the horizontal direction.
The power set are made up of motor and speed reducer, the input shaft and output shaft of reductor respectively with motor shaft and partially The center connection of heart wheel 2.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It may be appreciated other embodiment.

Claims (5)

1. a kind of bolt shearing and tensile fatigue test machine, including:Testing stand(1), beater mechanism, clamp assembly and hydraulic press, It is characterized in that:The beater mechanism includes:Eccentric wheel(2), connecting rod(3)And stroke lever(6), the eccentric wheel(2)It is upper to set Deviate the eccentric shaft in its center of circle, the connecting rod(3)One end be connected on eccentric shaft, connecting rod(3)The other end and stroke lever(6) Left end be hinged, stroke lever(6)It is horizontally disposed, eccentric wheel(2)Driven by power set;The clamp assembly includes:Lower plate (71)And upper plate(78), the upper plate(78)It is placed on lower plate(71)Top, the upper plate(78)Including left plate(72), middle plate (74)And right panel(75), the left plate(72)And right panel(75)It is separately positioned on middle plate(74)Both sides, left plate(72)And right panel (75)On be respectively provided with a semicircle orifice, middle plate(74)With left plate(72)And right panel(75)Relative position also sets first identical respectively Semicircle orifice, upper plate(78)On through hole along its length, bolt is set in through hole(76), lower plate(71)It is upper to be located at manhole (73)Position be threaded through hole;The hydraulic press includes horizontal hydraulic pressure machine(9)With longitudinal hydraulic press(11), the horizontal liquid Press(9)It is arranged on the right side of clamp assembly, longitudinal hydraulic press(11)It is arranged on clamp assembly(7)Underface, lower plate(71) Bottom is welded and fixed link(10), the link(10)With longitudinal hydraulic press(11)It is fixedly connected.
2. a kind of bolt shearing according to claim 1 and tensile fatigue test machine, it is characterised in that:The lower plate(71) And testing stand(1)On be respectively provided with some dowel holes(77), dowel hole(77)Interior insertion located lateral pin(13).
3. a kind of bolt shearing according to claim 1 and tensile fatigue test machine, it is characterised in that:The middle plate(74) The left and right sides and testing stand(1)Between pass through longitudinal register pin(12)Connection.
4. a kind of bolt shearing according to claim 1 and tensile fatigue test machine, it is characterised in that:The stroke lever (6)On sliding block is fixedly installed(5), sliding block(5)Guide rod is penetrated in the through hole of upper setting level, through hole(4).
5. a kind of bolt shearing according to claim 1 and tensile fatigue test machine, it is characterised in that:The power set Be made up of motor and speed reducer, the input shaft and output shaft of reductor respectively with motor shaft and eccentric wheel(2)Center connection.
CN201720091634.1U 2017-01-22 2017-01-22 A kind of bolt shearing and tensile fatigue test machine Expired - Fee Related CN206488997U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201720091634.1U CN206488997U (en) 2017-01-22 2017-01-22 A kind of bolt shearing and tensile fatigue test machine

Publications (1)

Publication Number Publication Date
CN206488997U true CN206488997U (en) 2017-09-12

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110567810A (en) * 2019-10-28 2019-12-13 山东大庚工程材料科技有限公司 Tensile detection device of grid is moulded to steel
CN112082745A (en) * 2020-08-28 2020-12-15 西南石油大学 Multi-axis variable frequency fatigue test device suitable for manifold type pipe fitting
CN112986007A (en) * 2021-02-02 2021-06-18 尹波 Bolt shear strength detection device
CN114152517A (en) * 2021-12-01 2022-03-08 国家能源集团江西电力有限公司万安水力发电厂 Stud stress detection device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110567810A (en) * 2019-10-28 2019-12-13 山东大庚工程材料科技有限公司 Tensile detection device of grid is moulded to steel
CN112082745A (en) * 2020-08-28 2020-12-15 西南石油大学 Multi-axis variable frequency fatigue test device suitable for manifold type pipe fitting
CN112986007A (en) * 2021-02-02 2021-06-18 尹波 Bolt shear strength detection device
CN112986007B (en) * 2021-02-02 2024-03-08 河北展宇机电科技有限公司 Bolt shear strength detection device
CN114152517A (en) * 2021-12-01 2022-03-08 国家能源集团江西电力有限公司万安水力发电厂 Stud stress detection device

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170912

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