CN206627351U - Circumference distribution high flux long-time creep test machine - Google Patents

Abstract

The utility model provides a kind of circumference distribution high flux long-time creep test machine, including frame, the respective independent loading system of N sets and the shared a set of heater being arranged in frame；Frame includes base and the upper cross plate by base support；Loading system includes lever loading mechanism, pull-up linkage, lower drag link mechanism, lifting levelling gear.N covers lever loading mechanism and is made up of M the second lever loading mechanisms of set that the L for being supported on upper cross plate upper surface covers the first lever loading mechanism and is suspended in upper cross plate lower surface；The stress point of N set lever loading mechanisms is circumferentially uniform, and it is circumferentially uniform that corresponding N puts drag link mechanism, lower drag link mechanism and N number of sample；N number of sample circumference is distributed in the cylindrical high temperature furnace of heater；N, L and M are integer, N >=2, L >=1, M >=1.The utility model can ensure accurate, the uniformity of multiple specimen test data, while testing machine floor space is few, and experimentation cost is low.

Description

Circumference distribution high flux long-time creep test machine

Technical field

The utility model belongs to Material Testing Machine field, is lasting on a kind of circumference distribution high flux specifically Creep testing machine.

Background technology

Mechanical high-temerature creep permanent strength testing machine, by frame, loading system, temp measuring system, deformation measuring system plus Thermal, measurement and control system and software systems etc. form.Frame generally includes base, by the fixed supported upper horizontal stroke of base Plate, loading system generally include the lever loading mechanism being arranged on upper cross plate, install lifting levelling gear in the base and Counterweight loading and unloading body, the pull-up linkage coupled with lever loading mechanism and the lower draw-bar machine coupled with lifting levelling gear Structure, pulls up linkage and lower drag link mechanism is coaxial, installs sample therebetween.Under constant load and temperature conditionss, creep The data that test measurement record sample deformation amount changes over time, it is therefore desirable to enable deformation measuring system, duration running measure Sample reaches the duration of fracture, therefore does not enable deformation measuring system.

Following drawback be present in the mechanical high-temerature creep permanent strength testing machine of more samples of the prior art：

(1), existing loading system is generally uniform along the upper surface centering of upper cross plate, and multiple samples share a high temperature Stove.High temperature furnace is usually cuboid-type, and sample is distributed in the high temperature furnace of cuboid-type.To ensure in the high temperature furnace of cuboid-type The temperature deviation requirement of portion soaking zone, adds the technical difficulty of electrical control, accordingly improves equipment production cost.To solve this One problem, also have separate to form independent heating space by dividing plate by the high temperature furnace of cuboid-type in the prior art, each Heating space is respectively provided with the technical scheme of independent heating module and temperature monitoring module, but the technical scheme, adds electrically The complexity of control structure, and multiple independent heating modules and temperature monitoring module cause experimentation cost to increase.

(2), multiple samples are installed in same frame, multiple samples are tested simultaneously when, if one of those or it is several Individual sample is broken, then caused vibration can be directly passed to whole frame, so as to pass to other samples, influences other examinations The test of sample, reduce the accuracy of test data.

Therefore, it is necessary to a kind of mechanical high-temerature creep testing machine of new more samples is researched and developed, in guarantee test data On the premise of accuracy, make testing machine structure compact, floor space is few, and experimentation cost is low.

Utility model content

The purpose of this utility model is to provide a kind of circumference distribution high flux long-time creep test machine, existing to overcome Above mentioned problem in technology, on the premise of the accuracy of guarantee test data, make testing machine structure compact, floor space is few, Experimentation cost is low；The shape of testing machine high temperature furnace is advantageous to control the uniformity of hearth soaking zone temperature simultaneously.

To achieve the above object, the utility model uses following technical scheme：

Circumference distribution high flux long-time creep test machine, including frame, the N being arranged in frame cover respective independent add Loading system and shared a set of heater, the frame include base and the upper cross plate by base support, the loading system Including lever loading mechanism, pull-up linkage, lower drag link mechanism and lifting levelling gear, the pull-up linkage and lower draw-bar machine Structure is coaxial, installs sample therebetween, wherein：

N covers the lever loading mechanism and is covered the first lever loading mechanism by the L for being supported on upper cross plate upper surface and be suspended in The M of upper cross plate lower surface covers the second lever loading mechanism composition；

The stress point that N covers the lever loading mechanism is circumferentially uniform, and corresponding N puts drag link mechanism, lower drag link mechanism It is circumferentially uniform with N number of sample；

The heater includes the high temperature furnace of cylinder, and N number of sample circumference is distributed in the high temperature furnace；

The N, L and M are integer, wherein N >=2, L >=1, M >=1.

According to the utility model, the N >=3, L >=2, M >=1 or N >=3, L >=1, M >=2.

According to the utility model, the base includes bottom plate and the panel being supported on the bottom plate；The lifting leveling Mechanism includes the first elevating screw mechanism and aseismatic mechanism, wherein：

The first elevating screw mechanism includes being upward through the first screw mandrel of panel, the first screw mandrel of the panel bottom Upper setting connecting plate；

The aseismatic mechanism includes two leads for being fixedly mounted on panel bottom, and the lead is passed down through connection The through hole at plate both ends is simultaneously sequentially connected in series linear bearing and the first buffer, and the linear bearing is embedded in through hole and and connecting plate Bottom fix, locating part is installed, the linear bearing and connecting plate are along leading on the lead below first buffer Moved up and down to post.

According to the utility model, the lower end of the lead extends downward into bottom plate.

According to the utility model, the lower end of the lead is passed down through bottom plate and extends to ground.

According to the utility model, the lever loading mechanism includes lever and is installed on the counterweight supporting machine of lever end Structure, wherein：

There is lever supporting part inside the front end of the lever, the lever supporting part is by being fixed on upper cross plate upper surface Or the lever supporting block of lower surface supports, equipped with screw mandrel is balanced on the front end face of the lever, it is equipped with and puts down on the balance screw mandrel Weighing apparatus stone roller；

The counterweight supporting device includes link supporting seat, is installed on the connecting rod of the link supporting seat lower end, is installed on The scale pan of the connecting rod bottom, counterweight is housed on the scale pan.

According to the utility model, the heater includes high temperature furnace, high temperature furnace elevating mechanism and positioning guide mechanism, its In：

The high temperature furnace elevating mechanism includes a pair of steel wire ropes being fixedly connected with high temperature furnace, before being fixed at the top of upper cross plate The Liang Ge steel wire ropes steering mechanism at end and the Liang Ge wirerope-windings mechanism of rear end；

The positioning guide mechanism includes the fixed seat being fixed in frame, the guide rod that upper and lower ends are fixed by fixed seat With the guide holder being fixed on high temperature furnace two side, the guide holder is oriented to by guide rod.

Compared with prior art, the utility model has following advantageous effects：

1) circumference distribution high flux long-time creep test machine of the present utility model, the first lever loading mechanism are supported on On transverse slat, the second lever loading mechanism is suspended under upper cross plate, and the stress point of lever loading mechanism is circumferentially uniform, lever-loading The front end of mechanism can partly overlap, and greatly reduce the space of lever loading mechanism occupancy, and then reduce testing machine and integrally account for Test space.

2) high temperature furnace of cylinder is used, is advantageous to control the uniformity of hearth soaking zone temperature；Pull up linkage, drop-down Linkage and sample are also circumferentially uniform, and sample circumference is distributed in the high temperature furnace of cylinder so that the heating of multiple samples Condition more reaches unanimity, so as to ensure the accuracy of the test data of sample, uniformity.

3) radius of a circle of stress point is also reduced, and significantly reduces the radius of high temperature furnace, so as to reduce equipment and add Hot cost, meanwhile, the Temperature Distribution of less inside heating furnace is more uniform, further increases the test data of multiple samples Accuracy.

Brief description of the drawings

Fig. 1 is the structural representation of the testing machine of the utility model (N=6).

Fig. 2 is the structural representation of frame of the present utility model.

Fig. 3 is the overlook direction structural representation of the testing machine of the utility model (N=6).

Fig. 4 is the main view direction structure schematic diagram of loading system of the present utility model, and wherein double dot dash line represents frame.

Fig. 5 be Fig. 4 loading system A-A to distribution schematic diagram.

Fig. 6 is the distribution schematic diagram of Fig. 4 lifting levelling gear B-B direction.

Fig. 7 is the main view direction structure schematic diagram of lever loading mechanism of the present utility model, wherein in double dot dash line expression Transverse slat.

Fig. 8 is the structural representation of pull-up linkage of the present utility model.

Fig. 9 is the structural representation of lower drag link mechanism of the present utility model.

Figure 10 is the structural representation of the testing machine with buffer gear.

Figure 11 is the main view direction structure schematic diagram that levelling gear is lifted in Figure 10, and wherein double dot dash line represents panel.

Figure 12 is the enlarged drawing of C portion in Figure 11.

Figure 13 is to lift levelling gear in Figure 10 to look up direction structure schematic diagram.

Figure 14 is the overlook direction structural representation that levelling gear is lifted in Figure 10.

Figure 15 is the main view direction structure schematic diagram of heater of the present utility model, and wherein double dot dash line represents frame.

Figure 16 is the overlook direction structural representation of heater of the present utility model, and wherein double dot dash line represents frame.

Figure 17 is the partial enlarged drawing of the utility model Fig. 1 V parts；

Overlook direction structural representation when Figure 18 is N=2, L=1, M=1 of the present utility model.

Overlook direction structural representation when Figure 19 is N=3, L=2, M=1 of the present utility model.

Overlook direction structural representation when Figure 20 is N=4, L=2, M=2 of the present utility model.

Overlook direction structural representation when Figure 21 is N=5, L=3, M=2 of the present utility model.

Figure 22 is the structural representation of the high flux long-time creep test machine with counterweight loading and unloading body.

In figure：1- frames, 2- loading systems, 3- heaters, 4- temp measuring systems, 5- measurements and control system, 6- deformations Measuring system, 7- samples, the fixtures of 8- first, the fixtures of 9- second, the fixtures of 10- the 3rd, the fixtures of 101- the 4th, 11- bottoms Seat, 12- upper cross plates, 13- columns, the horizontal inductive switches of 14-, 21- load maintainers, 22- liftings levelling gear, 23- upper connecting rod machines Drag link mechanism under structure, 24-, 25- counterweights loading and unloading body, the lever loading mechanisms of 21a- first, the lever loading mechanisms of 21b- second, 211- levers, 212- counterweights supporting device, 213- lever supportings part, 214- balances screw mandrel, 215- balanced weights, 216- link supportings Seat, 217- connecting rods, 218- counterweights, 219- scale pans, 121- lever supportings block, 111- bottom plates, 112- connecting columns, 113- panels, 114- it is shockproof regulation pin, 115- shroudings, 122- switch brackets, 231- upper connecting rods supporting device, the automatic aligning devices of 232- first, Pull bar under 233- upper connecting rods, 241- force snesors, the automatic aligning devices of 242- second, 243-, the first elevating screws of 220- mechanism, The screw mandrels of 221- first, 222- leveling motors reductor, 223- synchronous belt drive mechanisms, 224- aseismatic mechanisms, 225- connecting plates, 226 leads, 227- linear bearings, the buffers of 228- first, 229- pre-load nuts, 2210- backing plates, 31- high temperature furnaces, 32- are high Warm stove elevating mechanism, 33- positioning guide mechanisms, 321- steel wire ropes, 322- steel wire ropes steering mechanism, 323- wire rope winding machines Structure, 324- lifting motors reductor, 311- guide holders, 331- fixed seats, 332- guide rods, 41- thermocouples, 61- extensometers, 62- displacement transducers, the second elevating screws of 251- mechanism, the screw mandrels of 252- second, the buffers of 253- second.

Embodiment

Below in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail with specific embodiment.Should Understand, following examples are merely to illustrate the utility model not for restriction the scope of the utility model.

As shown in Figure 1 to Figure 3, according to one embodiment of the present utility model, the examination of circumference distribution high flux durable creeping Test machine, including frame 1, be installed in frame 1 six sets respective independent loading systems 2 and shared for six sets loading systems 2 A set of heater 3, six sets of respective independent measurements and control system 5, sample 7 are arranged in loading system 2, temp measuring system 4 It is arranged on deformation measuring system 6 on sample 7.

It is (such as bolt, anti-by the first fixture 8 on the base 11 as shown in Fig. 2 the frame 1 includes base 11 The combination of loose nut) it is fixed with column 13, the upper surface of the column 13 passes through the second fixture 9 (such as bolt, stop nut group Close) upper cross plate 12 is fixedly mounted.

As shown in Figure 1, Figure 3 and Figure 4 to shown in Fig. 6, the loading system 2 includes the lever loading mechanism supported by upper cross plate 12 21, the lifting levelling gear 22 in base 11, the pull-up linkage 23 coupled with lever loading mechanism 21 and with lifting The lower drag link mechanism 24 that levelling gear 22 couples, the pull-up linkage 23 and lower drag link mechanism 24 are coaxial, install therebetween Sample 7.

Wherein：Described six sets respective independent lever loading mechanisms 21 are by three set of first lever loading mechanism 21a and three sets Second lever loading mechanism 21b is formed, and the first lever loading mechanism 21a is supported on the upper surface of the one end of upper cross plate 12, institute State the lower surface that the second lever loading mechanism 21b is suspended in the other end of upper cross plate 12, the stress point A of six sets of lever loading mechanisms 21 Circumferentially uniform, corresponding pull-up linkage 23, lower drag link mechanism 24 and sample 7 are also circumferentially uniform.

As shown in Figure 14 and Figure 15, the heater 3 includes the high temperature furnace 31 of cylinder, the circumference uniform distribution of sample 7 In in the high temperature furnace 31.

More sample high flux long-time creep test machines of the present utility model, the first lever loading mechanism 21a are supported on horizontal stroke On plate 12, the second lever loading mechanism 21b is suspended under upper cross plate 12, and the stress point A of lever loading mechanism 21 is circumferentially uniform, The front end of lever loading mechanism 21 can partly overlap, and greatly reduce the space of the occupancy of lever loading mechanism 21, and then reduce The test space that testing machine integrally takes.

Using the high temperature furnace of cylinder, compared to the high temperature furnace of cuboid-type, be advantageous to control the equal of hearth soaking zone temperature Even property, the internal temperature of cylindrical high temperature furnace is more uniform, and sample circumference is distributed in the high temperature furnace of cylinder so that multiple The heating condition of sample more reaches unanimity, so as to ensure the accuracy of the test data of sample.

Simultaneously because stress point A radius of a circle is reduced, so as to significantly reduce the radius of high temperature furnace 31, so as to Reduce equipment and heating cost；In addition, the Temperature Distribution of less inside heating furnace is more uniform, multiple examinations are further increased The accuracy of the test data of sample.

According to the utility model, number N >=2 of the loading system 2 (or lever loading mechanism 21), first lever Load maintainer 21a number L >=1, number M >=1 of the second lever loading mechanism 21b.It can be set according to actual tests situation The quantity and the first lever loading mechanism 21a and the second lever loading mechanism 21b quantity of lever loading mechanism 21 are counted, such as：

As shown in figure 18, N=2, L=1, M=1；Now, the stress point A of two lever loading mechanisms 21 presss from both sides according to 180 degree Angle circumference uniform distribution, a first lever loading mechanism 21a are arranged on the upper surface of upper cross plate, second lever loading mechanism 21b is suspended in the lower surface of upper cross plate.

As shown in figure 19, N=3, L=2, M=1；Now, the stress point A of three lever loading mechanisms 21 is according to 120 degree of folders Angle circumference uniform distribution, two the first lever loading mechanism 21a are arranged on the upper surface of upper cross plate 12, second lever loading mechanism 21b is suspended in the lower surface of upper cross plate 12.

As shown in figure 20, N=4, L=2, M=2；Now, the stress point A of four lever loading mechanisms 21 is according to 90 degree of folders Angle circumference uniform distribution, two the first lever loading mechanism 21a are arranged on the upper surface of upper cross plate 12, two the second lever loading mechanisms 21b is suspended in the lower surface of upper cross plate 12.

As shown in figure 21, N=5, L=3, M=2；Now, the stress point A of five lever loading mechanisms 21 is according to 72 degree of folders Angle circumference uniform distribution, three the first lever loading mechanism 21a are arranged on the upper surface of upper cross plate 12, two the second lever loading mechanisms 21b is suspended in the lower surface of upper cross plate 12.

Preferably, the N >=3, L >=2, M >=1.Now, at least three samples 7 are added in the heating furnace 31 of cylinder Heat, heat more uniform during three 7 circumference uniform distributions of sample.

As shown in fig. 7, according to the utility model, the lever loading mechanism 21 includes lever 211 and is installed on lever 211 The counterweight supporting device 212 of end, the front end inside of the lever 211 have lever supporting part 213, the lever supporting part 213 are supported by being fixed on the lever supporting block 121 of the upper surface of upper cross plate 12 or lower surface, and the front end of the lever 211 is equipped with Screw mandrel 214 is balanced, balanced weight 215 is housed on the balance screw mandrel.

The counterweight supporting device 212 includes link supporting seat 216, is installed on the company of the lower end of link supporting seat 216 Bar 217, the scale pan 219 of the bottom of connecting rod 217 is installed on, counterweight 218 is housed on the scale pan 219.

Further, lever supporting part 213 is edge structure, and the lever supporting block 121 is and the edge structure phase The blade knife bearing structure of matching.

As shown in Fig. 2 according to the utility model, the base 11 includes bottom plate 111, connecting column 112 and panel 113, institute Connecting column 112 is stated to be fixed on the bottom plate 111, the panel 113 by the 3rd fixture 10 (such as bolt, nut combine) The top of the connecting column 112 is fixed on by the 4th fixture 101 (such as bolt, nut combine)；The four of the base 11 Week installation shrouding 115.

As depicted in figs. 1 and 2, according to the utility model, the shockproof regulation pin 114 of lower surface installation of the bottom plate 111.Institute It can be encapsulated regulation pin to state shockproof regulation pin 114, can reduce influence of the vibration to other samples caused by sample fracture.

As shown in figures 1 to 6, include being upward through panel 113 according to the utility model, the lifting levelling gear 22 First screw mandrel 221, first screw mandrel 221 pass through timing belt by the leveling motor reductor 222 being fixedly mounted under panel 113 The driving of transmission mechanism 223 moves up and down.

As shown in Figure 3 and Figure 4, according to the utility model, 6 switch brackets 122, institute are fixedly mounted on the upper cross plate 12 State on switch bracket 122 and lever 211 correspond to respectively be mounted to horizontal inductive switch 14.

For the first lever loading mechanism 21a, as shown in Figure 3 and Figure 4, the switch bracket 122 is fixedly mounted on One end of upper cross plate 12, the bearing-surface of switch bracket 122 are higher by the upper surface of upper cross plate 12, on its bearing-surface and on lever 211 It is corresponding be mounted to horizontal inductive switch 14.The switch bracket 122 can also be arranged on the upper surface of upper cross plate 12, use The switch bracket of gate, the rear end of lever 211 pass through the switch bracket of the gate, and paired horizontal inductive switch 14 is arranged on The both sides of the switch bracket 122 of gate.

For the second lever loading mechanism 21b, the switch bracket 122 is fixedly mounted on the another of upper cross plate 12 End, the bearing-surface of switch bracket 122 are less than the lower surface of upper cross plate 12, be correspondingly mounted on its bearing-surface and on lever to peace Fill horizontal inductive switch 14.The switch bracket 122 can also be arranged on the lower surface of upper cross plate 12, using the switch branch of gate Frame, the rear end of lever 211 pass through the switch bracket 122 of the gate, and paired horizontal inductive switch 14 is arranged on opening for gate Close the both sides of support 122.

Loading force is applied to sample 7 by lever loading mechanism 21, larger experiment can be obtained with lighter counterweight and carried Lotus.In experiment, feedback of the levelling gear 22 by horizontal inductive switch 14 is lifted, adjusts the horizontality of simultaneously control lever 211 In the range of license, so as to ensure the stabilization of loading force.

As shown in Figure 4 and Figure 8, the lever is arranged on including top according to the utility model, the pull-up linkage 23 Upper connecting rod supporting device 231 on supporting member 213, the lower end of the upper connecting rod supporting device 231 fill equipped with the first automatic aligning 232 are put, the lower end of first automatic aligning device 232 is equipped with upper connecting rod 233.

The upper connecting rod supporting device 231 of the first lever loading mechanism 21a is than the second lever loading mechanism 21b's Upper connecting rod supporting device 231 is grown, to ensure the sample 7 in high temperature furnace 31 in identical height.

As shown in Fig. 1, Fig. 4 and Fig. 9, the lower drag link mechanism 24 includes the power installed in the upper end of the first screw mandrel 221 Sensor 241, the upper end of the force snesor 241 are equipped with the second automatic aligning device 242, second automatic aligning device 242 upper end is equipped with lower pull bar 243, and sample 7 is installed between the lower pull bar 243 and upper connecting rod 233.

Because multiple samples are tested on same testing machine, vibration meeting caused by some sample fracture therein Frame is directly passed to, so as to influence the test accuracy of other samples indirectly, to solve this problem, using further below Improvement project.

According to another embodiment of the present utility model, as shown in Figure 11 to 14, the lifting levelling gear 22 includes First elevating screw mechanism 220 and aseismatic mechanism 224, wherein：The first elevating screw mechanism 220 includes being upward through panel 113 the first screw mandrel 221, connecting plate 225, first screw mandrel 221 are set on first screw mandrel 221 of the bottom of panel 113 Up and down motion is driven by synchronous belt drive mechanism 223 by the leveling motor reductor 222 being fixedly mounted under panel 113.

The aseismatic mechanism 224 includes two leads 226 for being fixedly mounted on the bottom of panel 113, the lead 226 It is passed down through the connecting plate 225 and is sequentially connected in series the buffer 228 of linear bearing 227 and first, the linear bearing 227 is embedded It is fixedly connected in the through hole at the both ends of connecting plate 225 and with the bottom of connecting plate 225, the lower section of the first buffer 228 Lead 226 on install pre-load nut 229, the linear bearing 227 and connecting plate 225 move up and down along lead 226. The upper and lower surface of first buffer 228 is equipped with backing plate 2210.

In the present embodiment, pre-load nut 229 can also be is securable to lead 226 in the prior art, and playing prevents The locating part that one buffer 228 falls, first buffer 228 is polyurethane bumper absorber.

Multiple samples are tested simultaneously when, when one of sample fracture, other samples are also at i.e. under the same terms By the state of fracture.If a sample fracture, frame is produced vibration, and other samples have been passed to by frame, then can Significant impact is produced to the accuracy of the test data of other samples.Using above-mentioned technical proposal, make one of sample Vibration is passed down to the first elevating screw mechanism 220 by the first screw mandrel 221 caused by fracture, drives the He of connecting plate 225 Linear bearing 227 is moved up and down, and vibration is passed into the first buffer 228, is absorbed by the first buffer 228, can be reduced one Individual sample fracture influences to caused by other samples, improves the accuracy of real test data.

Further, bottom plate 111 is extended downward into according to the utility model, the lower end of the lead 226.When first slow When rushing device 229 and being not enough to, by absorption of vibrations caused by sample fracture, influence the experiment of other samples, by the lower end of the lead Bottom plate is extended downward into, makes that bottom plate can not be transferred to by the vibrational energy that the first buffer 228 absorbs, is absorbed by frame, so as to enter One step reduces influence of the vibration to sample.

Further, it is passed down through bottom plate 111 according to the utility model, the lower end of the lead 226 and extends to ground Face.It can't be fully absorbed when the lower end of lead 226 will can not be transferred to bottom plate by the vibrational energy that the first buffer 228 absorbs Vibrational energy, when can also influence the experiment of other samples, the lower end of the lead 226 is passed down through bottom plate and extends to ground Face, vibration is passed into ground, so as to further reduce influence of the vibration to sample.

As shown in Figure 15 and Figure 16, the He of high temperature furnace elevating mechanism 32 is also included according to the utility model, the heater 3 Positioning guide mechanism 33, wherein：

The high temperature furnace elevating mechanism 32 includes a pair of the steel wire ropes 321 being fixedly connected with the top of high temperature furnace 31, fixed In the Liang Ge steel wire ropes steering mechanism 322 of the top nose of upper cross plate 12 and the Liang Ge wirerope-windings mechanism 323 of rear end, institute State wirerope-winding mechanism 323 to be driven by the power transmission shaft on lifting motor reductor 324, the lifting motor reductor 324 are arranged on upper cross plate 12, and the steel wire rope 321 realizes up and down motion by the high temperature furnace elevating mechanism 32.

The positioning guide mechanism 33 includes the fixed seat 331 being fixed on column 13, and upper and lower ends are consolidated by fixed seat 331 Fixed guide rod 332, guide holder 311 is fixedly installed in the side wall of the high temperature furnace 31, and the high temperature furnace 31 passes through guide holder 311 And it is oriented to by guide rod 332.

The high temperature furnace of existing mechanical high-temerature creep permanent strength testing machine is typically secured in frame, in high temperature furnace 31 Front open up fire door, be required to open fire door when mounting and dismounting test specimen, operated in less separate space, operated It is very inconvenient, therefore the installation accuracy of test specimen can be influenceed, and then influence the accuracy of follow-up test.In addition, after off-test, examination The upper connecting rod 233 and lower pull bar 243 of sample 7 and loading specimen cool in high temperature furnace 31, because high temperature furnace has heat insulation effect, Cause temperature fall time to be grown, reduce further test efficiency.

High temperature furnace of the present utility model is connected by steel wire rope with high temperature furnace elevating mechanism, can be achieved freely rise and under Drop, the installation and removal space of sample is big, convenient operation, improves the installation accuracy of sample, and then ensure that test data Accuracy, and high temperature furnace is oriented to by guide rod, and the mounting stability of structure is good.Multiple samples are tested simultaneously, and more Part sample is uniform, shares a high temperature furnace, and operating efficiency and heat utilization efficiency significantly improve, and energy consumption significantly reduces, and reduces and sets Standby floor space, improves economic benefit.

As shown in Fig. 1 and Figure 17, according to the utility model, the temp measuring system 4 includes the thermoelectricity for being fixed on specimen surface Even 41, temperature transition is electric signal, input measurement and control system 5 by the thermocouple 41；The deformation measuring system 6 includes It is clamped in the extensometer 61 of sample upper and lower ends, displacement transducer 62, institute's displacement sensors 62 is housed on the extensometer 61 Transmit signal to measurement and control system 5.

Whole testing machine is controlled by the software systems being arranged in control room, front and rear to assemble and disassemble sample work for staff Area, left and right are that staff loads and unloads counterweight workspace.

As shown in figure 3, according to the utility model, during N=6, the 12 long 1.22m of upper cross plate, wide 0.8m, the stress point A circle diameter is 0.41m.Panel 113 long 2.5m, wide 0.8m.

The specific size of the upper cross plate 12 and base 11 can be changed according to loading system N particular number.

Further, as shown in figure 22, the loading system 2 also includes the counterweight loading and unloading body being arranged in base 11 25, second elevating screw mechanism 251 of the counterweight loading and unloading body 25 including being installed on the lower surface of panel 113, described second Second screw mandrel 252 of elevating screw mechanism 251 is upward through panel 113, the second buffer 253 of its upper end installation, and described second Elevating screw mechanism 251 is driven by motor.The counterweight loading and unloading body 25 is known technology of the prior art, unknown herein Thin description.

During experiment, when some sample fracture, the rear end of lever 211 is in the rapid decrease of counterweight supporting device 212, counterweight Disk is struck on the second buffer 253 with larger momentum, supporting and cushioning effect by the second buffer 253, is reduced Impact and the vibration of frame.

According to the utility model, on the upper cross plate 12 immediately below the rear end of lever 211 of the first lever loading mechanism 21a Provided with the 3rd buffer (not shown).3rd buffer can be polyurethane bumper absorber.

When some sample fracture, the end of lever 21 rapid decrease in the presence of Weight gravity (loading force), but can To obtain the supporting of the 3rd buffer below and buffering, thus the shock and vibration to frame can be reduced.

Circumference distribution high flux long-time creep test machine of the present utility model in use, carry out in accordance with the following steps：

Startup power supply, start high temperature furnace elevating mechanism, rise high temperature and arrive correct position, adjust lower pull bar to suitably highly, Multiple samples are installed according to order from left to right, then, fall high temperature furnace；Control furnace temperature reaches test temperature, and high temperature furnace leads to Cross electric control system and ensure that in-furnace temperature is uniform and stable, ensure that the heating condition of multiple samples is identical.Then added by lever Mounted mechanism applies a constant test load to each sample, within the defined time, observes deformation or the fracture feelings of sample Condition.

Testing machine is monitored and adjusted to temperature by the temperature on thermocouple measurement sample, measurement and control system. During creep test, the deformation of sample is measured by the extensometer of deformation measuring system, the displacement transducer on extensometer is by signal It is conveyed to measurement and control system.

After the completion of experiment, the power supply of high temperature furnace is closed, lifting high temperature furnace to correct position, treats upper and lower pull bar and sample drop To after normal temperature, counterweight is removed, pulls down sample.

Specific embodiment of the utility model is described in detail above, but it is only used as example, the utility model It is not restricted to particular embodiments described above.To those skilled in the art, it is any that the practicality is equal Modifications and substitutions are also all among category of the present utility model.Therefore, the institute in the case where not departing from spirit and scope of the present utility model The impartial conversion of work and modification, it should all cover in the scope of the utility model.

Claims (7)

1. circumference distribution high flux long-time creep test machine, including frame, the respective independent loading of N sets being arranged in frame System and shared a set of heater, the frame include base and the upper cross plate by base support, the loading system bag Include lever loading mechanism, pull-up linkage, lower drag link mechanism and lifting levelling gear, the pull-up linkage and lower drag link mechanism Coaxially, sample is installed therebetween, it is characterised in that wherein：

N covers the lever loading mechanism and covers the first lever loading mechanism by the L for being supported on upper cross plate upper surface and be suspended in upper horizontal stroke The M of plate lower surface covers the second lever loading mechanism composition；

The stress point that N covers the lever loading mechanism is circumferentially uniform, and corresponding N puts drag link mechanism, lower drag link mechanism and N number of Sample is circumferentially uniform；

The heater includes the high temperature furnace of cylinder, and N number of sample circumference is distributed in the high temperature furnace；

The N, L and M are integer, wherein N >=2, L >=1, M >=1.

2. testing machine according to claim 1, it is characterised in that the N >=3, L >=2, M >=1 or N >=3, L >=1, M >= 2。

3. testing machine according to claim 1, it is characterised in that the base includes bottom plate and is supported on the bottom plate Panel；The lifting levelling gear includes the first elevating screw mechanism and aseismatic mechanism, wherein：

The first elevating screw mechanism includes being upward through the first screw mandrel of panel, is set on the first screw mandrel of the panel bottom Put connecting plate；

The aseismatic mechanism includes two leads for being fixedly mounted on panel bottom, and the lead is passed down through connecting plate two The through hole at end is simultaneously sequentially connected in series linear bearing and the first buffer, the linear bearing be embedded in through hole and with the bottom of connecting plate Portion is fixed, and locating part, the linear bearing and connecting plate are installed on the lead below first buffer along lead Move up and down.

4. testing machine according to claim 3, it is characterised in that the lower end of the lead extends downward into bottom plate.

5. testing machine according to claim 3, it is characterised in that the lower end of the lead is passed down through bottom plate and extended To ground.

6. according to the testing machine any one of claim 1-5, it is characterised in that the lever loading mechanism includes lever And the counterweight supporting device of lever end is installed on, wherein：

There is lever supporting part inside the front end of the lever, the lever supporting part by be fixed on upper cross plate upper surface or under The lever supporting block on surface supports, and balanced weight is housed on screw mandrel equipped with balance screw mandrel, described balance on the front end face of the lever；

The counterweight supporting device includes link supporting seat, is installed on the connecting rod of the link supporting seat lower end, is installed on described The scale pan of connecting rod bottom, counterweight is housed on the scale pan.

7. testing machine according to claim 1, it is characterised in that the heater includes high temperature furnace, high temperature furnace lifts Mechanism and positioning guide mechanism, wherein：

The high temperature furnace elevating mechanism includes a pair of steel wire ropes being fixedly connected with high temperature furnace, is fixed on upper cross plate top nose Liang Ge steel wire ropes steering mechanism and the Liang Ge wirerope-windings mechanism of rear end；

The positioning guide mechanism includes the fixed seat being fixed in frame, the guide rod and consolidate that upper and lower ends are fixed by fixed seat The guide holder being scheduled on high temperature furnace two side, the guide holder are oriented to by guide rod.