CN205538430U

CN205538430U - A quick heating device for experiment of high temperature SHPB dynamic impact

Info

Publication number: CN205538430U
Application number: CN201620353336.0U
Authority: CN
Inventors: 邵彬彬; 吴明静; 徐颖; 郑志涛; 王梦想
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2016-04-21
Filing date: 2016-04-21
Publication date: 2016-08-31
Anticipated expiration: 2026-04-21

Abstract

The utility model discloses a quick heating device for experiment of high temperature SHPB dynamic impact, including last box, lower box, a weighing sensor and a temperature sensor, heating channel, the guide rail, electric heat conversion equipment, the hinge, the electric wire, the temperature measurement hole, the heating tile, it is cotton to keep warm, the outer wall, the handle, the ring, the fastener, the heated board, utilize temperature sensor and temperature control device be connected together, can adjust the inside temperature of heating device in real time, and show the temperature through temperature control device, reach accurate control heating temperature's effect, and the setting through the heated board, make the difficult emergence dissipation of temperature, can let the inside and outside temperature of test piece unanimous, avoided the test piece the inhomogeneous condition of temperature to appear. It can heat the test piece alone, can install, heat the test piece again fast, makes the test piece can still enable the heating and goes on in same position with assaulting, and the test piece location is accurate, simple structure, compactness, the processing ease, work efficiency is high, the capital input is few, economical and practical with be convenient for the penetration and promotion.

Description

A kind of nonstorage calorifier for high temperature SHPB impact experiment

Technical field

This utility model relates to SHPB experiment auxiliary device field, particularly relates to a kind of dynamic for high temperature SHPB The nonstorage calorifier of state impact experiment.

Background technology

SHPB dynamic experiment is widely used in the research of material property, but is mostly to stop at normal temperatures Material experiment, but worst hot case equally exists, so the research to material under high temperature performance needs also exist for. SHPB high temperature experimental technique is broadly divided into two types at present: one is test specimen and part guided wave bar to be put into Heating in sweat box, entitled " SHPB device is applied to measure grinding of dynamic property of material under high temperature simultaneously Study carefully " article (Xia Kaiwen etc., Experimental Mechanics, the 1998, Vol.13, the 3rd phase, PP.307-313) use constant temperature Heating furnace, utilizes one-dimensional stress theory of wave propagation and heat transfer theory, revises the temperature gradient field shadow to waveform measurement Ringing, its difficult point is that Data Processing in Experiment is more complicated.Entitled " for high-temperature Hopkinson pressure bar experiment Nonstorage calorifier " patent of invention describe a kind of quick mode of heating of test specimen, enter to solve incident bar Heating furnace and when contacting with high temperature test specimen to incident bar and the thermogenic action of transmission bar, on incident bar and transmission bar Devise the ceramic bar of same external diameter, have ignored the diversity of stress wave propagation in different medium, also have ignored Incident bar does not has the error that direct impact test piece brings, and have impact on the accuracy of experimental data.Another kind is first list Solely heating test specimen, quickly installed in systems by test specimen before experiment, entitled " SHPB system high temperature is tested Auto-assembling technique " article (Zhang Fangju etc., Experimental Mechanics, the 2005, Vol.20, the 2nd phase, PP.281-284) Patent of invention with entitled " for the double-air path bidirectional automatic assembling device of high-temperature Hopkinson pressure bar experiment " (patent No.: ZL200610021096.5) describes a kind of Hopkinson experiment double-air path bidirectional and automatically assembles Device, its defect is difficult to the quasistatic of the system that realizes and docks with Tong Bu, it is desirable to have the most high-precision experimental provision.

Summary of the invention

For above-mentioned situation, the purpose of this utility model is to provide a kind of real for high temperature SHPB dynamic impulsion The nonstorage calorifier tested, it can individually heat test specimen, again can Fast Installation, heating test specimen, make test specimen energy Heating and impact enough can also be made to carry out at same position, and test specimen accurate positioning, simple in construction, compact, operation is held Easily, work efficiency is high, and capital input is few, economical and practical and be easy to penetration and promotion.

This utility model solves its technical problem and be the technical scheme is that

A kind of nonstorage calorifier for high temperature SHPB impact experiment, including upper box (1), nowel Body (2), temperature sensor (3), add the passage of heat (4), guide rail (5), electricity-heat converter (6), hinge (7), electric wire (8), thermometer hole (9), heating watt (10), heat-preservation cotton (11), outer wall (12), handle (13), annulus (14), tight Firmware (15), warming plate (16), described upper box (1) and lower box are connected by hinge (7), described upper box (1) With engrave on lower box (2) two semicircles and can be combined into a full circle add the passage of heat (4), described upper box (1) upper connection has temperature sensor (3), and described lower box (2) is connected with guide rail (5), described upper box (1) and under Casing (2) is provided above with electricity-heat converter (6), and described electricity-heat converter (6) connects electric wire (8), institute above State lower box (2) and be provided above with securing member (15), between described heating watt (10) and outer wall (12), be filled with insulation Cotton (11), described upper box (1) also sets up handle (13).

In order to improve combination property of the present utility model, it is achieved structure, effect optimization, its further step is:

The a diameter of 100mm adding the passage of heat (4) is the same with the external diameter of annulus (14), and the internal diameter of annulus (14) is divided into 75mm and 50mm two kinds, and annulus (14) is to be made up of two identical semicircular ring.

Heating watt (10) and annulus (14) are thermostable heat-conductive ceramic material, and temperature-sensitive electricity is laid in heating watt (10) below Resistance, and be connected with electricity-heat converter (6).

The diameter of warming plate (16) is the same with the diameter adding the passage of heat (4), and warming plate (16) wraps up one layer of guarantor above Wen Mian.

The thickness of the heat-preservation cotton (11) filled between outer wall (12) and heating watt (10) is 3～5mm.

Compared with prior art, the utility model has the advantages that:

(1) this utility model utilizes temperature sensor (3) to connect together with attemperating unit, can regulate in real time and add Temperature within thermal, and by attemperating unit displays temperature, reach accurately to control the effect of heating-up temperature.

(2) workbench that this utility model utilizes guide rail (5) to test with SHPB is connected, and can appoint at workbench Meaning is slided, and so facilitates and takes, puts test specimen inside heater, it is to avoid taking, putting test specimen easily interferes with SHPB incident bar and transmission bar, convenient operation, make heating test specimen more convenient, rapidly.

(3) this utility model setting by warming plate (16), detains warming plate (16) when heating or insulation Entering bottoming hole passage (4), make temperature be not susceptible to dissipate, such test specimen can be more equal inside heater Even reaching is temperature required, and by insulation, the test specimen internal and external temperature can be allowed consistent, it is to avoid temperature occurs in test specimen Uneven situation.

(4) this utility model by diameter 100mm add the passage of heat (4) and two identical semicircular ring Setting, be possible not only to heat the cylinder test specimen of a diameter of 100mm, and diameter 75mm can be heated With the test specimen of 50mm, making the multi-size of heating test specimen, also may be used in test specimen position inside heater simultaneously Fixing, make dynamic impact test to efficiently accomplish.

Accompanying drawing explanation

Fig. 1 is the vertical of a kind of nonstorage calorifier for high temperature SHPB impact experiment of this utility model Body structural representation；

Fig. 2 is that a kind of nonstorage calorifier for high temperature SHPB impact experiment of this utility model is opened After structural representation；

Fig. 3 is the circle of a kind of nonstorage calorifier for high temperature SHPB impact experiment of this utility model Ring structure schematic diagram；

Fig. 4 is the work of a kind of nonstorage calorifier for high temperature SHPB impact experiment of this utility model Make schematic diagram；

Fig. 5 is that a kind of nonstorage calorifier for high temperature SHPB impact experiment of this utility model exists The schematic diagram of normal operating conditions in SHPB pilot system；

Label in schematic diagram: 1, upper box；2, lower box；3, temperature sensor；4, the passage of heat is added；5、 Guide rail；6, electricity-heat converter；7, hinge；8, electric wire；9, thermometer hole；10, heating watt；11, protect Wen Mian；12, outer wall；13, handle；14, annulus；15, securing member；16, warming plate.

Detailed description of the invention

For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawings to this practicality Novel it is described in further detail:

In the present embodiment, a kind of nonstorage calorifier for high temperature SHPB impact experiment of design, Test specimen is put on annulus (14) when deployed, then be placed on together and add in the passage of heat (4), shut by handle (13) Upper box (1), then clasps fastener (15), buckle warming plate (16), and then electric wire (8) is connected with attemperating unit, Connect with the mains, regulated by attemperating unit required for temperature, then heat test specimen, treat that temperature reaches required temperature When spending, temperature sensor (3) meeting feedback temperature information is to attemperating unit, and then attemperating unit can enter guarantor automatically Temperature state, after some hours, tests after all reaching inside and outside test specimen to control temperature.During test, will insulation Plate (16) takes off, and makes the incident bar of SHPB and transmission bar all be directed at test specimen, then carries out dynamic impact test.

In the present embodiment by the setting of warming plate (16), when heating or insulation, warming plate (16) is tipped in Adding in the passage of heat (4), make temperature be not susceptible to dissipate, such test specimen can be more uniform inside heater Reach temperature required, by insulation, test specimen internal and external temperature can be allowed consistent, it is to avoid test specimen occurs that temperature is not Uniform situation.

Setting of the passage of heat (16) and two identical semicircular ring is added in the present embodiment by diameter 100mm Put, be possible not only to heat the cylinder test specimen of a diameter of 100mm, and can heat diameter 75mm and The test specimen of 50mm, makes the multi-size of heating test specimen, and test specimen position inside heater also can be consolidated simultaneously Fixed, make dynamic impact test to efficiently accomplish.

It is pointed out that above example be this utility model a part, the data used in example and Chart is merely to illustrate the concrete thought of this method.For a person skilled in the art, all new in this practicality Within the spirit of type and principle, the change that can readily occur in or equal replacement, improvement etc., should be included in this reality Within novel protection domain.Therefore, protection domain of the present utility model should be with the protection of described claim Scope is as the criterion.

Claims

1. for a nonstorage calorifier for high temperature SHPB impact experiment, including upper box (1), lower box (2), temperature sensor (3), add the passage of heat (4), guide rail (5), electricity-heat converter (6), hinge (7), electric wire (8), Thermometer hole (9), heating watt (10), heat-preservation cotton (11), outer wall (12), handle (13), annulus (14), securing member (15), Warming plate (16), described upper box (1) and lower box are connected by hinge (7), described upper box (1) and lower box (2) On engrave two semicircles and can be combined into a full circle add the passage of heat (4), the upper connection of described upper box (1) has Temperature sensor (3), described lower box (2) is connected with guide rail (5), described upper box (1) and lower box (2) above Being provided with electricity-heat converter (6), described electricity-heat converter (6) connects electric wire (8), described lower box (2) above It is provided above with securing member (15), between described heating watt (10) and outer wall (12), is filled with heat-preservation cotton (11), institute State and on upper box (1), also set up handle (13).

A kind of nonstorage calorifier for high temperature SHPB impact experiment the most according to claim 1, It is characterized in that: described in add a diameter of 100mm of the passage of heat (4) the same with the external diameter of annulus (14), annulus (14) Internal diameter be divided into 75mm and 50mm two kinds, and annulus (14) is to be made up of two identical semicircular ring.

A kind of nonstorage calorifier for high temperature SHPB impact experiment the most according to claim 1, It is characterized in that: described heating watt (10) and annulus (14) are thermostable heat-conductive ceramic material, and heating watt (10) is below Lay critesistor, and be connected with electricity-heat converter (6).

A kind of nonstorage calorifier for high temperature SHPB impact experiment the most according to claim 1, It is characterized in that: the diameter of described warming plate (16) is the same with the diameter adding the passage of heat (4), and warming plate (16) is above Parcel one layer of heat preservation is cotton.

A kind of nonstorage calorifier for high temperature SHPB impact experiment the most according to claim 1, It is characterized in that: the thickness of the heat-preservation cotton (11) filled between described outer wall (12) and heating watt (10) is 3～5mm.