CN208476666U - A kind of power-pulse current coupling laboratory holder - Google Patents
A kind of power-pulse current coupling laboratory holder Download PDFInfo
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- CN208476666U CN208476666U CN201821048976.6U CN201821048976U CN208476666U CN 208476666 U CN208476666 U CN 208476666U CN 201821048976 U CN201821048976 U CN 201821048976U CN 208476666 U CN208476666 U CN 208476666U
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- 239000002184 metal Substances 0.000 claims abstract description 9
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Abstract
本实用新型提出一种力‑脉冲电流耦合作用实验夹具，包括左夹具头和右夹具头；左、右夹具头以夹持头固定试样的两端，夹持头经套筒机构与加载力装置的力杆相连；所述套筒机构包括绝缘套筒、柱形的力传感器和第一绝缘层；力传感器设于套筒内；力传感器以螺纹结构与绝缘套筒内壁配合，力传感器的一端与力杆相接；绝缘套筒前端套接于夹持头的固定端处以固定夹持头；所述第一绝缘层设于力传感器与夹持头之间；当绝缘套筒旋转时，套筒以螺纹结构驱动力传感器在绝缘套筒内移动以调节左、右夹具头之间的距离；本产品能便捷、安全地进行力‑脉冲电流耦合作用实验，能使加载力和加载脉冲作用互不影响，进而揭示力‑脉冲电流耦合作用下金属构件的止裂机理。
The utility model proposes an experimental fixture for force-pulse current coupling action, which comprises a left fixture head and a right fixture head; the left and right fixture heads use clamping heads to fix both ends of a sample, and the clamping heads are connected to the loading force through a sleeve mechanism. The force rod of the device is connected; the sleeve mechanism includes an insulating sleeve, a cylindrical force sensor and a first insulating layer; the force sensor is arranged in the sleeve; the force sensor is matched with the inner wall of the insulating sleeve by a threaded structure, and the force sensor One end is connected with the force rod; the front end of the insulating sleeve is sleeved on the fixed end of the clamping head to fix the clamping head; the first insulating layer is arranged between the force sensor and the clamping head; when the insulating sleeve rotates, The sleeve uses a threaded structure to drive the force sensor to move in the insulating sleeve to adjust the distance between the left and right clamp heads; this product can easily and safely perform force-pulse current coupling experiments, which can make the loading force and loading pulse effect They do not affect each other, thereby revealing the crack arrest mechanism of metal components under the coupling effect of force-pulse current.
Description
Technical field
The utility model relates to technical field of experiment equipment, especially a kind of power-pulse current coupling laboratory holder.
Background technique
Since at the end of the 20th century, product is during military service, because of physical abrasion, breakage, fracture and chemical attack etc.
Reason changes the original geometry of equipment component and size, destroys registration property and ability to work between components,
The normal work for eventually leading to component, assembly even complete machine is affected.In the past, it is believed that the equipment containing crackle is not
It is recoverable, but the core component of major mechanical equipment is expensive, added value is high, processing technology is complicated, tolerance is high, nothing
By in terms of economy or sustainable and reliability perspectives, significant effect is all had to the crack defect reparation of this kind of product
Benefit and meaning.
If cracked in the core component manufacturing process of some major mechanical equipments, crackle is especially buried, in mistake
It goes to be unrepairable, be scrapped facing, be bound to cause huge waste.Therefore this kind of product remanufactures, crack defect
Reparation is and its crucial step, only Anticrack, just can ensure that the safe operation of engineering goods, extends it and use the longevity
Life.But relatively difficult for the reparation for burying crackle, pulse current crack arrest is current relatively effective method.The utility model is logical
It crosses and designs a kind of new test fixture realization power-pulse current coupling, quantitatively load drawing to component in loading force device
Under conditions of stress or compression, by the way that multi-insulation protective layer is arranged, high-voltage pulse current effect can be applied to component simultaneously,
Loading force and load pulses effect are independent of each other, and then disclose the crack arrestment mechanism of metal component under power-pulse current coupling.
This laboratory holder solves the problems, such as that sample levels difficulty during the experiment by the horizon equipment being mounted in clamp head, leads to simultaneously
Cross the rotation position of adjusting sleeve cylinder internal screw thread and then the relative position of adjusting sample.
Summary of the invention
The utility model proposes a kind of power-pulse current coupling laboratory holder, energy is convenient, safely carries out power-arteries and veins
Current coupling effect experiment is rushed, loading force and load pulses can be made to act on and be independent of each other, and then discloses power-pulse current coupling and makees
With the crack arrestment mechanism of lower metal component.
The utility model uses following technical scheme.
A kind of power-pulse current coupling laboratory holder, the laboratory holder includes left clamp head and right clamp head；Institute
Left and right clamp head is stated with the both ends of the fixed sample of clamping head, clamping head is connected through sleeve mechanism with the power bar of loading force device；Institute
Stating sleeve mechanism includes insulating sleeve, cylindrical force snesor and the first insulating layer；The force snesor is set in sleeve；Power passes
The side wall of sensor is cooperated with the inner wall in the middle part of helicitic texture and insulating sleeve or rear portion, and one end of force snesor connects with power bar；
The insulating sleeve front end is rotatably socketed at the fixing end of clamping head with fixed clamp head；First insulating layer is set to
Between force snesor and clamping head；When insulating sleeve rotation, sleeve is with helicitic texture driving force snesor in insulating sleeve
Movement is to adjust the distance between left and right clamp head.
Fastener is placed at the clamping head sample is fixed；The fastener and clamping head intersection are equipped with the
Two insulating layers.
The fastener includes threaded rod and the insulating nut that is spun at threaded rod；The threaded rod is vertically placed through
At the tapped through hole of sample；The sample is connected by the metal position of fastener with external power supply.
The loading force device is fixed at laboratory holder fixed station；The power bar, left clamp head and right clamp head are located at
On same level straight line.
It is equipped with horizon equipment at the position that the clamping head of the left and right clamp head intersects with insulating sleeve, the position at two
Horizon equipment when being designated as level, the fixed sample of left and right clamp head is in horizontal attitude.
In the utility model, there are the good insulating layer of insulation performance in sleeve and clamp head junction, by this insulating layer every
Disconnected influence of the pulse current to force snesor and loading force device；Sleeve inner force snesor, using being threadedly engaged, leads to sleeve
Overregulate rotary force sensor position, and then the distance between the component of adjusting sample；It can be realized by a variety of insulation protections
The coupling of power-pulse current convenient, fast, efficient can carry out the defect of the metal component containing defect under stress condition and repair
Multiple mechanism study.
In the utility model, sleeve inner is made of the connection of sleeve and force snesor internal screw thread, is sensed by adjusting force
The screw position of device, and then the relative position of Adjustment Tests clamp head can allow this product to be applied to various sample length dimension
Sample.
In the utility model, clamp head is used with the material for testing rate of loading and plasticity requirements is met, and sample passes through
Threaded rod and clamp head are fastened in clamp head, and threaded rod and clamp head contact position are being covered using a circle insulating materials
On the basis of cylinder insulation protection, by this layer of insulating materials, insulating properties is increased；Nut used in this test fixture is all made of resistance to
High pressure, insulating materials, not only ensure that the insulation and intensity requirement of test fixture during the experiment, while can be by adjusting
The relative altitude at nut location and then each position of adjusting sample.
The utility model is equipped with horizon equipment, can guarantee the sleeve spiral shell at adjustment two fixing end of sample by horizon equipment
Line relative position is horizontal, while guaranteeing that sample keeps a horizontal position during the experiment, and then is conducive to experiment in power-arteries and veins
Repair mechanisms research precision under coupling is rushed, error is reduced.
In the utility model, power bar one end is connect with loading device, and the other end is connect with the force snesor in sleeve, in structure
Under conditions of part quantitatively loads tensile stress or compression, by read force snesor numerical value, can be convenient, efficiently carry out by
The defect repair mechanism study of the metal component containing defect under the conditions of power.
In the utility model, test fixture uses a variety of insulation modes and carries out insulation protection；Have in sleeve one layer by exhausted
The insulating layer of edge material filling opens insulation between clamp head and loading force.Insulating layer is used between clamp head and threaded rod, into
One step reduces in pulse loading procedure a possibility that clamp head leakage of current；This test fixture head use nut be all by
What insulating materials was constituted, not only can be by the fixed sample position of adjusting nut, while insulating effect can also be played.
In the utility model；Tapped through hole is processed at sample so as to improve using being threadedly coupled between sample and threaded rod
Cooperation tightness, and then gap when reducing pulse current effect between threaded rod and sample, and then improve pulse work
Conductive effect under.
Detailed description of the invention
With reference to the accompanying drawings and detailed description to the further details of explanation of the utility model:
Attached drawing 1 is the positive schematic diagram of the utility model；
Attached drawing 2 is the vertical view of the utility model to schematic diagram；
Attached drawing 3 is the positive schematic diagram in part at the clamp head of the utility model；
Attached drawing 4 is local overlooking at the clamp head of the utility model to schematic diagram；
In figure: 1- laboratory holder fixed station；2- loading force device (left side)；3- power bar；The left clamp head of 4-；The right clamp head of 5-；
6- loading force device (right side)；7- laboratory holder fixed station pedestal；8- insulating sleeve；9- force snesor；The first insulating layer of 10-；11-
Second insulating layer；13- fastener；14- sample；15- horizon equipment；16- threaded rod.
Specific embodiment
As shown in Figs 1-4, a kind of power-pulse current coupling laboratory holder, the laboratory holder include left clamp head 4
With right clamp head 5；The left and right clamp head is with the both ends of the fixed sample 14 of clamping head 12, and clamping head is through sleeve mechanism and load
The power bar 3 of power device (left side loading force device 2, right side loading force device 6) is connected；The sleeve mechanism include insulating sleeve 8,
Cylindrical force snesor 9 and the first insulating layer 10；The force snesor is set in sleeve；The side wall of force snesor is with helicitic texture
Cooperate with the inner wall in the middle part of insulating sleeve or rear portion, one end of force snesor connects with power bar；The insulating sleeve front end can revolve
It is socketed at the fixing end of clamping head with fixed clamp head with turning；First insulating layer 10 be set to force snesor and clamping head it
Between；When insulating sleeve rotation, sleeve is moved with helicitic texture driving force snesor in insulating sleeve to adjust left and right fixture
The distance between head.
Fastener is placed at the clamping head sample is fixed；The fastener and clamping head intersection are equipped with the
Two insulating layers 11.
The fastener includes threaded rod 16 and the insulating nut 13 that is spun at threaded rod；The threaded rod is vertically worn
It is placed at the tapped through hole of sample；The sample is connected by the metal position of fastener with external power supply.
The loading force device is fixed at laboratory holder fixed station 1；The power bar, left clamp head and right clamp head are located at
On same level straight line.
It is equipped with horizon equipment 15 at the position that the clamping head of the left and right clamp head intersects with insulating sleeve, the portion at two
When the horizon equipment of position is designated as level, the fixed sample of left and right clamp head is in horizontal attitude.
In this example, laboratory holder fixed station 1 is supported on ground with laboratory holder fixed station pedestal 7.
Level-off operation first is carried out to the clamping head of left and right clamp head before experiment, until making the water at left and right clamp head
Flat device is designated as level, and the fixed sample of left and right clamp head is in horizontal attitude, the sleeve of left and right clamp head connection at this time
It also is located on same level straight line, then left side loading force device 2, right side loading force device 6 exert a force to sample by power bar, outside
The metal position of fastener of portion's power supply through fixed sample is to sample output pulse current to be tested.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048976.6U CN208476666U (en) | 2018-07-04 | 2018-07-04 | A kind of power-pulse current coupling laboratory holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048976.6U CN208476666U (en) | 2018-07-04 | 2018-07-04 | A kind of power-pulse current coupling laboratory holder |
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| Publication Number | Publication Date |
|---|---|
| CN208476666U true CN208476666U (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821048976.6U Active CN208476666U (en) | 2018-07-04 | 2018-07-04 | A kind of power-pulse current coupling laboratory holder |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896388A (en) * | 2018-07-04 | 2018-11-27 | 福州大学 | A kind of power-pulse current coupling laboratory holder |
-
2018
- 2018-07-04 CN CN201821048976.6U patent/CN208476666U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896388A (en) * | 2018-07-04 | 2018-11-27 | 福州大学 | A kind of power-pulse current coupling laboratory holder |
| CN108896388B (en) * | 2018-07-04 | 2024-03-12 | 福州大学 | Force-pulse current coupling action experimental clamp |
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