CN110455628A - A kind of material property testing machine with nitridation function - Google Patents
A kind of material property testing machine with nitridation function Download PDFInfo
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- CN110455628A CN110455628A CN201910791881.6A CN201910791881A CN110455628A CN 110455628 A CN110455628 A CN 110455628A CN 201910791881 A CN201910791881 A CN 201910791881A CN 110455628 A CN110455628 A CN 110455628A
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- wedge block
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
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- 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)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of material property testing machines with nitridation function, belong to a kind of material property testing machine, including rack, it is fixedly connected with nitriding box on the rack, the fixture at clamping workpiece both ends is provided in nitriding box, extend to inside nitriding box around workpiece heating coil, extend to nitrogen sparge tube inside nitriding box, driving fixture is connected on fixture and is stretched or the power mechanism of compression workpiece.The present invention increases the function of nitridation than ordinary test machine, the performance of material after the effect and nitridation of nitridation under material stress effect can be studied, convenient for studying the performance of the material after being nitrogenized under different drawings, compression, process and time are saved, the research and development of new material and intensive treatment and research for current material are facilitated.
Description
Technical field
The present invention relates to measuring technology related fieldss, belong to a kind of material property testing machine.
Background technique
Material property testing machine is the equipment for carrying out material property experiment, its major function is exactly to test various materials
The various aspects of performance of material, material property testing machine in the world achieves significant progress after being born at present.
In the industrial production, guarantee that quality is the key that can the product exist and circulate in market, in quality requirement spy
Being even more for the inspection of the performance of various types of materials and various products in not high military product can be more stringent, usually can all use
Precision is high, high reliablity material property testing machine to carry out material or product the inspection of system.Either in heavy industry, light
All can be inevitably with big many big machineries in industry, agricultural and other kinds industry, and all kinds of zero mechanically
Component generally can all need to be heat-treated, or even the heat treatment process for the components having can be considerably complicated, the so complicated heat of process
It handles resulting material surface hardness, wearability, corrosion resistance etc. performance to require to test, although all properties material
Performance aircraft is not that can test to all parameters, but be directed to the several critical performance parameters materials generally required
Performance aircraft can be carried out testing, and test object includes the various types of materials such as spring, machine tool guideway, main nuclear power pipeline.
Since new century, people pursue high quality in every field, and new requirement is proposed in every field, needs to look for
To new material or finds new technique and general material is strengthened, optimize.The field that the mankind set foot on be also it is increasingly wider,
Either space or deep-sea, to attempt to enter, these require the help of all kinds of tools.And as one can imagine, these tools
The requirement of used various types of materials is how high, such as high temperature resistant, high pressure, corrosion-resistant, wear-resistant, good toughness, intensity height etc., this
Not only need people to innovate the R&D Approach method of material, and the material for developing is if appropriate for this more
Material property testing machine is just needed to test.More than after research and development be used to examine, it is also desirable under study for action constantly into
Row material properties test.
But presently, there are the problem of be the testing machine that can have both heat treatment and material properties test not yet, carrying out
For some test specimens being heat-treated such as Nitrizing Treatment, often require first to be then sent through in nitriding furnace progress Nitrizing Treatment
Material property testing machine is tested for the property, and complex disposal process, time-consuming, this process is simultaneously uneconomical, and efficiency is too low.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of material property testing machines with nitridation function, increase
The function of nitridation can study the performance of material after the lower effect and nitridation nitrogenized of material stress effect, convenient for research it is different draw,
The performance of material after being nitrogenized under compression, saves process and time, facilitates the research and development of new material and for existing
The intensive treatment and research of material.
In order to solve the above technical problems, the technical scheme adopted by the invention is that:
A kind of material property testing machine with nitridation function including rack, is fixedly connected with nitriding box on the rack, nitriding box
Inside be provided with the fixture at clamping workpiece both ends, extend to inside nitriding box around workpiece heating coil, extend to nitrogen
Change the nitrogen sparge tube inside case, driving fixture is connected on fixture and stretches or compress the power mechanism of workpiece.
Technical solution of the present invention further improvement lies in that: power mechanism includes horizontally disposed moving beam, driving movement
The transmission mechanism and moving beam and fixture of feed screw nut vice mechanism, driving lead screw rotation that crossbeam vertically moves up and down
The mandril being vertically arranged being fixedly connected, is provided with moving sealing device, screw pair between mandril excircle and nitriding box
Mechanism includes two lead screws that the feed screw nut of moving beam two sides is arranged in and is mounted in rack 1 by bearing.
Technical solution of the present invention further improvement lies in that: transmission mechanism includes that be fixedly connected on lead screw one end same with lead screw
Big belt wheel that axis is fixedly connected, by the Wheel train driving gear of the power transmission of motor to big belt wheel, Wheel train driving gear include with
The pinion-endless screw retarder that motor is connected is synchronous with the circle-arc tooth that the power of pinion-endless screw retarder is transmitted to big belt wheel
Band device.
Technical solution of the present invention further improvement lies in that: moving sealing device includes that above nitriding box and nitrogen is arranged in
Change the seal casinghousing that case is connected and the mobile plug of the sealing being arranged in inside seal casinghousing, seals mobile plug and be provided centrally with and run through
The hole of the mobile plug of sealing matched with mandril, seal casinghousing intracavity bottom are provided with bumper ring, seal mobile plug internal holes
Key is provided on side wall.
Technical solution of the present invention further improvement lies in that: fixture includes two opposite upper point clamp bodies and lower point
Body fixture above divides clamp body to include the upper pouch-shaped fixture for being internally provided with the inverted trapezoidal cavity that Open Side Down, be fixed on
The upper positioning plate of upper pouch-shaped fixture lower end, upper positioning plate are provided centrally with reverse taper hole, one are connected in the reverse taper hole
The identical upper wedge block of taper, the mandril lower end are protruded into the cavity of pouch-shaped fixture and solid by nut and upper pouch-shaped fixture
Fixed, mandril lower end is withstood on wedge block, and lower fission fixture includes the lower pouch-shaped for being internally provided with the ladder cavity of opening upwards
Fixture, be fixedly connected on lower pouch-shaped fixture upper surface lower positioning plate, be provided with taper type hole, the frustum on lower positioning plate
It is connected with lower wedge block identical with taper type hole taper in shape hole, is fixed with upper end in the lower pouch-shaped fixture cavity and withstands on down
The stud of wedge block lower end.
Technical solution of the present invention further improvement lies in that: the upper surface of lower positioning plate is provided with two about mandril or so
The fixture guide rod being symmetrically vertically arranged is provided with the through-hole matched with fixture guide rod on upper positioning plate, and upper positioning plate passes through
Through-hole is socketed on fixture guide rod.
Technical solution of the present invention further improvement lies in that: upper wedge block and lower wedge block are divided into compression experiment wedge block
With tension test with two kinds of wedge block, compression experiment includes that top surface is provided with the groove matched with workpiece shapes with wedge block
Lower wedge block and bottom surface are provided with wedge block on the groove matched with workpiece shapes.
Technical solution of the present invention further improvement lies in that: the compression experiment includes that top surface is provided with and work with wedge block
The lower wedge block for the groove that part shape matches and bottom surface are provided with wedge block on the groove matched with workpiece shapes.
Technical solution of the present invention further improvement lies in that: the tension test wedge block includes with being vertically arranged
The upper wedge block in the hole matched with workpiece outer wall shape and lower wedge block, axis of the tension test with wedge block along hole are divided into
Left and right two parts.
Technical solution of the present invention further improvement lies in that: heating coil is hollow tubular structure, the inside of heating coil
Pipeline is connected with cooling water, and heating coil extends among fixture, the extension of the nozzle and heating coil of nitrogen sparge tube
Part is oppositely arranged.
By adopting the above-described technical solution, the technological progress achieved by the present invention is:
There is the material property experimental machine of nitridation function the function of nitridation is increased than ordinary test machine designed by the present invention, from
And it can be with the performance of material after the effect and nitridation that are nitrogenized under research material stress, convenient for research in different drawings, compression
It is lower nitrogenized after material performance, save process and time, propose for material nitriding process and nitridation to material
The new direction of the influence research of performance, facilitates the research and development of new material and intensive treatment and research for current material.
Moving sealing device is connected with nitriding box, convenient for being adjusted inside moving sealing device according to the position of mandril at any time
The position of the mobile plug of sealing, facilitates the adjusting to nitriding box air pressure inside.Mandril is through moving sealing device and horizontal with movement
Beam is fixedly connected, according to the air pressure inside the mobile adjusting nitriding box of mandril, to increase with cross beam movement mandril with fixture
The mobile stability of mandril, by lead screw and feed screw nut moving beam makes the moving resistance of moving beam smaller, acts
It is smooth.
Seal casinghousing intracavity bottom is provided with bumper ring and mobile fill in of sealing is prevented to collide with other than seal casinghousing, reduces
The damage of equipment seals and is provided with key on the side wall of mobile plug inner hole and is convenient for the guiding mobile to the mobile plug of sealing.
The trapezoidal cavity of upper pouch-shaped fixture and lower pouch-shaped fixture becomes easy the installation of wedge block, so that wedge block
Movement become flexible, it is therefore prevented that wedge block falls off and damages.Fixture guide rod plays the role of guiding to upper wedge block, prevents
Stop and above clamp body has been divided to be swung left and right.
Upper wedge block and lower wedge block all include compression experiment wedge block and tension test wedge block, have been adapted to a variety of
The trapezoidal cavity of experiment condition, the special shape of tension test wedge block and upper pouch-shaped fixture and lower pouch-shaped fixture matches
It closes, simplifies and step up to drink fixed process to workpiece, structure is simple, high reliablity.
The internal pipeline of heating coil is connected with cooling water, so that heating coil has cooling capacity at any time, improves
Processing efficiency, it is therefore prevented that hot-spot and equipment damage.
The setting of nitrogen sparge tube and heating coil position is so that the gas of nitrogen and high temperature comes into full contact with, convenient for increasing nitrogen
The utilization rate of gas.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is structural schematic diagram at A in Fig. 1；
Fig. 3 is structural schematic diagram at C in Fig. 1；
Fig. 4 is structural schematic diagram at D in Fig. 1；
Fig. 5 is structural schematic diagram at E in Fig. 1；
Fig. 6 is structural schematic diagram at F in Fig. 1；
Fig. 7 is structural schematic diagram at G in Fig. 1；
Fig. 8 is cutting structural schematic diagram at B-B in Fig. 7；
Fig. 9 is cutting structural schematic diagram at H-H in Fig. 1；
Figure 10 is tension test wedge block stereoscopic schematic diagram；
Figure 11 is the cutting structural schematic diagram using nitriding box when tension test wedge block；
Figure 12 be Fig. 1 in I to schematic diagram；
Figure 13 is the structural schematic diagram in Fig. 4 at J；
Wherein, 1, rack, 2, nitriding box, 2a, heating coil, 2b, nitrogen sparge tube, 3, fixture, 3a, upper pouch-shaped fixture, 3b,
Lower pouch-shaped fixture, 3c, upper wedge block, 3d, lower wedge block, 3e, upper positioning plate, 3f, lower positioning plate, 4, workpiece, 5, mobile sealing
Device, 5a, seal casinghousing, 5b, the mobile plug of sealing, 6, moving beam, 7, mandril, 8, lead screw, 9, pinion-endless screw retarder, 10,
Feed screw nut, 11, adjustment gasket, 16, adjustment gasket, 18, fixed block, 19, locating piece, 21, seal casinghousing upper end cover, 22, anti-
Konisphere, 24, piston ring, 25, key, 26, gasket ring, 27, seal casinghousing lower cover, 28, upper padding plate, 29, fixture guide rod, 30, polished rod,
31, upper U-shaped block, 32, lower U-shaped block, 34, deep groove ball bearing, 37, coil fixed block, 38a, upper fixture positioning bolt, 38b, upper wedge
Shape block positioning bolt, 39a, lower fixture positioning bolt, 39b, lower wedge block positioning bolt, 40, head piece, 42, stud, 43, silk
Thick stick, 48, upper bearing (metal), 49, big belt wheel, 52, toothed belt, 53, tensioning wheel, 54, small pulley, 56, backing plate, 59, bottom plate, 60, support,
61, motor, 62, shaft coupling, 65, cushion block, 66, angular contact ball bearing, 67, adjustment gasket, 68, upper end cover, 70, end cap, 72,
Turbine, 73, turbine wheel shaft, 74, quiet crossbeam, 75, straight pin, 76, rubber ring, 78, handwheel, 82, side cover plate, 85, bumper ring, 86,
Abnormity nut, 88, guide sleeve, 89, seal casinghousing outer wall, 90, left end cap, 91, hexagon-headed bolt, 93, sleeve, 94, pinion gear
Axis, 95, gasket, 96, scroll bar axis, 97, big roller gear, 98, cabinet left end cap, 101, locking sleeve, 103, deep groove ball bearing,
105, right end cap, 106, round nut, 107, spray point, 108, insulating plug, 109, conducting wire, 110, insulated leg.
Specific embodiment
The present invention is described in further details below with reference to embodiment:
As shown in Figures 1 to 12, it is a kind of with nitridation function material property testing machine, including rack 1, nitriding box 2, movement it is close
Seal apparatus 5, transmission device, motor 61, nitriding box 2 are fixedly connected on the rack, and moving sealing device 5 is connected with nitriding box 2,
Nitriding box 2 includes fixture 3, heating coil 2a, the nitrogen sparge tube 2b that 4 both ends of clamping workpiece inside nitriding box 2 are arranged in,
Heating coil 2a extends to 2 inside of nitriding box and around workpiece 4, and nitrogen sparge tube 2b is extended to inside nitriding box 2, fixture 3
On be connected with driving fixture stretch or compression workpiece 4 power mechanism.
As shown in figure 3, moving sealing device 5 includes seal casinghousing 5a and the mobile plug 5b of sealing, sealing mobile plug 5b is group
Mould assembly dish-type piston, seal casinghousing 5a are arranged above nitriding box 2, and seal casinghousing 5a is connected with nitriding box 2, seal mobile plug
Inside seal casinghousing 5a, the mobile plug sealing movement of sealing is filled in 5b and is provided centrally with to match the mobile plug 5b setting of sealing with mandril 7
The hole of conjunction, this hole is through the mobile mobile plug 5b of plug sealing of sealing.The intracorporal bottom of the chamber of seal casinghousing 5a is provided with bumper ring
85, mobile plug 5b and the collision of 5 cylinder bottom of moving sealing device are sealed for preventing, seals mobile plug sealing movement plug 5b internal holes
It is provided with key 25 on side wall, seals and guide sleeve 88 is housed on the mobile mobile plug 87 of plug sealing, the mobile plug of sealing is controlled by key 25
5b not can rotate during the motion.It is fixed on the abnormity nut 86 and mandril 7 that the entire mobile plug 5b of sealing passes through its lower end
Connection, there is gasket ring 26 between the two.Seal casinghousing lower cover 27 is fixedly connected with seal casinghousing outer wall 89 with welding manner, close
Dustband 22 is equipped at capsule body upper end cover 21, seal casinghousing upper end cover 21 and seal casinghousing lower cover 27 there are uniformly distributed four
Venthole.It is provided with the shaft shoulder on mandril 7, seals the mobile upper end for filling in 5b and is blocked by the shaft shoulder, seals the lower end of mobile plug 5b conjunction
Abnormity nut 86 on mandril 7 seals mobile plug 5b and is fixed under the effect up and down of the shaft shoulder and abnormity nut 86.
As shown in figure 4, fixture 3 includes two opposite upper point clamp body and lower seperated fixtures, above divide clamp body packet
Include pouch-shaped fixture 3a, upper wedge block 3c, upper positioning plate 3e, upper fixture positioning bolt 38a, upper wedge block positioning bolt 38b, on
U-shaped block 31, it is lower fission fixture include lower pouch-shaped fixture 3b, lower positioning plate 3f, lower wedge block 3d, lower fixture positioning bolt 39a, under
Wedge block positioning bolt 39b, stud 42, lower U-shaped block 32, fixture guide rod 29.Upper pouch-shaped fixture 3a is internally provided with that Open Side Down
Cavity, the cross-sectional shape of cavity be it is inverted trapezoidal, Open Side Down for cavity.Wedge shape is provided in upper pouch-shaped fixture 3a
The cross-sectional shape of block 3c, upper wedge block 3c be it is inverted trapezoidal, upper wedge block 3c is for fixing workpiece 4.Upper pouch-shaped fixture 3a
Top wall surface be provided with through-hole, mandril 7 passes through through-hole, and the lower end end of mandril 7 is provided with U-shaped block 31, on upper U-shaped block 31
It is provided with through-hole, mandril 7 passes through this through-hole.Upper fixture positioning bolt 38a and upper wedge block positioning bolt are screwed on mandril 7
38b, upper fixture positioning bolt 38a are contacted with upper pouch-shaped fixture 3a, and when mandril 7 moves up, upper fixture positioning bolt 38a makes
Pouch-shaped fixture 3a must be gone up to move up together with mandril 7.Upper wedge block positioning bolt 38b is located under upper fixture positioning bolt 38a
Side, upper wedge block positioning bolt 38b are in contact with upper U-shaped block 31, and the lower end of upper U-shaped block 31 is in contact with upper wedge block 3c.On
Positioning plate 3e is located at the lower part of upper pouch-shaped fixture 3a, and upper positioning plate 3e is in contact with the bottom surface of upper pouch-shaped fixture 3a, upper positioning plate
Reverse taper hole is provided on 3e, upper wedge block 3c can not be fallen under the limitation of bellmouth from upper pouch-shaped fixture 3a, upper wedge shape
The shape of block 3c is matched with upper positioning plate 3e reverse taper hole shape.The lower end of mandril 7 is protruded into the cavity of pouch-shaped fixture 3a
And fixed by nut and upper pouch-shaped fixture 3a, 7 lower end of mandril is withstood on wedge block 3c.Upper wedge block 3c originally can be in upper bag
It moves up and down in the cavity of clamp 3a, is fixed under the action of upper U-shaped block 31 and upper positioning plate 3e.Lower pouch-shaped fixture 3b with
Upper pouch-shaped fixture 3a is oppositely arranged, and lower pouch-shaped fixture 3b is internally provided with the cavity of opening upwards, and the cross-sectional shape of cavity is
It is inverted trapezoidal.Be provided with lower wedge block 3d in lower pouch-shaped fixture 3b, the cross-sectional shape of lower wedge block 3d be it is inverted trapezoidal,
The shape of lower wedge block 3d is matched with cavity shape, and lower wedge block 3d is for fixing workpiece 4.In lower pouch-shaped fixture 3b cavity
It is fixed with stud 42, the bottom wall of lower pouch-shaped fixture 3b is provided with through-hole, and stud 42 passes through through-hole, the top end of stud 42
It is provided with lower U-shaped block 32, through-hole is provided on lower U-shaped block 32, stud 42 passes through this through-hole.It is fixed that lower fixture is screwed on stud 42
Position bolt 39a and lower wedge block positioning bolt 39b, lower fixture positioning bolt 39a are contacted with lower pouch-shaped fixture 3b, 42 upper end of stud
Withstand on the lower end lower wedge block 3d.Lower wedge block positioning bolt 39b is located above lower fixture positioning bolt 39a, lower wedge block positioning
Bolt 39b is in contact with lower U-shaped block 32, and the upper end of lower U-shaped block 32 is in contact with lower wedge block 3d.Lower positioning plate 3f is located at lower bag
The top of clamp 3b, lower positioning plate 3f are fixedly connected on the upper surface of lower pouch-shaped fixture 3b, lower pouch-shaped fixture 3b and lower bag
The top wall surface of clamp 3b is in contact, and taper type hole, limit of the lower wedge block 3d in taper type hole are provided on lower positioning plate 3f
It can not be moved up under system to be detached from from lower pouch-shaped fixture 3b, the shape of lower wedge block 3d and lower positioning plate 3f tapered bore profile phase
Cooperation.Lower wedge block 3d can be moved up and down in the cavity of lower pouch-shaped fixture 3b originally, in lower U-shaped block 32 and lower positioning plate 3f
It is fixed under effect.Through-hole is provided among the pouch-shaped bottom of all pouch-shaped fixtures, surrounding is provided with eight screw-threaded counterbores, screw-threaded counterbore
Position be in distributed rectangular, both sides have four tapped blind holes.Upper pouch-shaped fixture 3a is fixedly connected on positioning plate 3e,
Lower pouch-shaped fixture 3b is fixedly connected below lower positioning plate 3f.Upper positioning plate 3e is equipped with the through-hole of installs fixture guide rod 29, and
And eight symmetrical screw-threaded counterbores are provided with, one side is provided with trapezoidal gap, convenient for the handling of wedge type block and the positioning of wedge type block.Work
Making fixture 3 further includes upper lower bolster, through-hole is provided among the upper padding plate 28 and lower bolster, it is heavy that surrounding is provided with eight screw threads
Hole, the position of screw-threaded counterbore are in distributed rectangular.The upper surface of lower positioning plate 3f is provided with two fixture guide rods 29, fixture guide rod 29
About 7 bilateral symmetry of mandril, fixture guide rod 29 is vertically arranged.Be provided on upper positioning plate 3e matched with fixture guide rod 29 it is logical
Hole, upper positioning plate 3e are socketed on fixture guide rod 29 by through-hole.
As shown in Fig. 4, Figure 10, Figure 11, upper wedge block 3c and lower wedge block 3d include two kinds of forms, and it is real that one is compressions
It tests and uses wedge block, one is tension test wedge blocks.The setting of at the top of compression experiment wedge block or bottom is fluted, groove with
4 shape of workpiece matches.The central axes part of tension test wedge block is provided with vertical hole, the shape in hole and 4 outer wall of workpiece
Shape matches, and hole is split into two halves along the vertical direction, and axis of the tension test with wedge block along hole is divided into left and right two parts.It is real
When testing, the both ends of workpiece 4 used are screwed with a nut, as fixing end.When tension test wedge block clamps workpiece 4,
Two nuts are stuck in the outside in the hole of tension test wedge block, nut be located at wedge block 3c upper end and lower wedge block
The lower end of 3d.At this point, the frictional force that the hole of nut and tension test wedge block provides provides tensile stress for experimentation.It is all
Wedge block header is provided with through-hole, for leading to cooling water.
It is additionally provided with exhaust pipe and fabrication hole on the side wall of nitriding box 2, the sealing matched with exhaust pipe is additionally provided with and sets
Standby, the diameter of fabrication hole is matched with the diameter of exhaust pipe, nitrogen sparge tube 2b, heating coil 2a.Nitrogen sparge tube 2b breaks through nitrogen
Change the thickness of case 2, and extend into inside nitriding box 2, nitrogen sparge tube 2b and 2 contact portion of nitriding box are provided with sealing device.
Meanwhile the position nitrogen sparge tube 2b can be manually adjusted, so that part of the nitrogen sparge tube 2b in sealing device moves up and down.Heating
Coil 2a is hollow tubular structure, and the internal pipeline of heating coil 2a is connected with cooling water.Heating coil 2a is solid by coil
Determine block 37 to be connected on the outside of nitriding furnace, be powered and logical cooling water heating coil 2a is extended among fixture 3, nitrogen sparge tube
The nozzle of 2b and the extension of heating coil 2a are oppositely arranged.Each setting one in the outside in nitriding furnace cabinet of coil fixed block 37
It is a, it is equipped with sealing ring wherein, is provided with tapped through hole thereon.
It as shown in figure 13, is the electric discharge device being fixedly connected on lower positioning plate 3f, including the electric discharge as animating electrode
Needle 107, insulating plug 108, conducting wire 109, insulated leg 110.Its specific constructive form is as follows, insulated leg 108 be it is circular,
108 sets of insulated leg on guide post 29, are interspersed with conducting wire 109 inside insulated leg 108, spray point 107 is connected with conducting wire 109
It connects.Insulating plug 108 is mounted on insulated leg 108, and insulating plug 108 is wrapped in spray point 107, and insulating plug 108 is mounted on insulation
There is binding post outstanding on the top of support 108, right side.The main purpose of electric discharge device be realize nitrogen ionization, generate N from
Son increases nitriding efficiency.
As shown in Figure 2 and Figure 3, power mechanism includes moving beam 6, feed screw nut vice mechanism, transmission mechanism, mandril, movement
Crossbeam 6 is horizontally disposed, and feed screw nut vice mechanism about 6 moving beam of driving vertically moves, and transmission mechanism drives lead screw rotation, top
Bar 7 is vertically arranged, and mandril 7 is fixedly connected with moving beam 6 and fixture 3, is arranged between 7 excircle of mandril and nitriding box 2
There is moving sealing device 5, feed screw nut vice mechanism includes that the feed screw nut 10 of 6 two sides of moving beam is arranged in and passes through bearing
Two lead screws 8 being mounted in rack 1.What what mandril 7 was fixedly connected with moving beam 6 and fixture 3 be vertically arranged runs through
Moving sealing device 5.Feed screw nut 10 is provided on moving beam 6, feed screw nut 10 has run through the thickness of moving beam 6.Silk
Thick stick 8 is vertically arranged, and lead screw 8 is mounted in rack 1 by bearing, and lead screw 8 and feed screw nut 10 are conjunction.8 one end of lead screw is fixed to be connected
It is connected to big belt wheel 49, the coaxial arrangement of 49 lead screw 8 of big belt wheel.Axis of two feed screw nuts 10 about mandril 7 on moving beam 6
It is symmetrical arranged.Head piece 40 is a part of rack 1, and two pairs of through-holes are provided on head piece 40, is respectively used to installation lead screw 8 and light
Bar 30, head piece 40 are mainly supported by polished rod 30, and 30 end of polished rod is screwed with nut so that head piece 40 to be fixedly connected with polished rod 30,
Polished rod 30 supports whole rack 1.The position that lead screw 8 and head piece 40 are fixedly mounted is horizontal at the top of lead screw 8, and on top
40 upside of beam, is equipped with dustproof cover herein, and dustproof cover is fastened by screw；Lead screw 8 passes through feed screw nut 10, and nut 10 passes through interior six
Angle fillister head screw is fixed on moving beam 6；It is used to support the rotation of lead screw 8 by deep groove ball bearing 34；On moving beam 6
Dustproof cover is again provided among side, dirt lid is fixedly connected by dustproof cover by hexagon socket cap head screw with moving beam 6；Mandril
7 be that moving beam 6 is connected to by locating piece 19 and fixed block 18, and fixed block 18 is fixed by eight screws and moving beam 6
Connection is equipped with washer 16 between screw and moving beam 6；Mandril 7 passes through the nut of its end and the screw thread and filing appliance of lower section
Tool is fixedly connected with loading force when carrying out tension test to provide.
Transmission mechanism includes big belt wheel 49 and Wheel train driving gear, big belt wheel 49 be fixedly connected on 8 one end of lead screw and with silk
Thick stick 8 is fixedly and coaxially connected, and Wheel train driving gear is by the power transmission of motor 61 to big belt wheel 49.Wheel train driving gear includes and electricity
Pinion-endless screw retarder that machine 61 is connected and the circle-arc tooth that the power of pinion-endless screw retarder is transmitted to big belt wheel 49 are same
Step band device.
As shown in figure 5, the lower part of lead screw 8 is socketed in upper bearing (metal) 48, the two coaxial arrangement, 48 lower end of upper bearing (metal) is stuck in axis
It holds on ladder bushing, the upper end of upper bearing (metal) 48 is fixed by dustproof cover, and dustproof cover is fixed on bearing rank by four screws
On terraced sleeve, lower bearing upper end is stuck on bearing ladder bushing, and lower end is locked by locking nut 49.Lead screw 8 extends downwardly, and wears
Cross quiet crossbeam 74, big belt wheel 49 is mounted on the end of lead screw 8, the two coaxial arrangement, the end of big belt wheel 49 by with two
Nut 52 is locked closing.
As depicted in figure 5 and figure 12, Wheel train driving gear includes the small pulley 54 of axis vertical setting, big belt wheel 49, tensioning
53, toothed belt 52 are taken turns, small pulley 54 and the shaft of big belt wheel 49 are arranged in parallel, are equipped between small pulley 54 and big belt wheel 49
Tensioning wheel 53, tensioning wheel 53 is for compressing toothed belt 52, and toothed belt 52 is engaged with small pulley 54 and big belt wheel 49.It is provided with two
A big belt wheel 49, two big belt wheels 49 are symmetrical arranged about mandril 7.One toothed belt 52 simultaneously with two big belt wheels 49 and small band
Wheel 54 is meshed, and tensioning wheel 53 at this time from back to front compresses toothed belt 52, so that toothed belt 52 is meshed with small pulley 54, tooth
Shape band 52 is symmetrical arranged about mandril 7.
Motor 61 shown in fig. 6 is bolted to connection on lower bolster 56, and lower bolster 56 is bolted to connection
On lower plate 59, the pedestal cover plate of motor 61 is fixedly attached on lower plate 59 by screw, and entire pedestal is by four supports
60 support, and are connected by shaft coupling 62 with retarder on the right side of motor 61.
As shown in fig. 7, horizontally disposed pinion shaft 94 passes through shaft coupling 62 and motor 61 in pinion-endless screw retarder 9
It is connected, the left end cap 91 that pinion shaft 94 passes through is connected by bolt with cabinet left end cap 98, is provided with pad between the two
Piece 95, cabinet left end cap 98 are bolted to connection with cabinet.It is provided with the rotation that bearing is used to support pinion shaft 94, axis
It holds by 93 positioning and locking of sleeve.Power is passed to big roller gear 97, big roller gear 97 and pinion shaft 95 by pinion shaft 95
Intermeshing, the axis of the two are parallel.Big roller gear 97 is mounted on scroll bar axis 96, and big roller gear 97 passes through locking nut
With 101 positioning and locking of locking sleeve, while locking sleeve 101 also plays the role of positioning and locking to deep groove ball bearing 103.Scroll bar
Axis 96 is connected with worm gear 72, and worm gear 72 is mounted on turbine wheel shaft 73, and the shaft of worm gear 72 and turbine wheel shaft 73 is all vertically arranged, the two
Coaxial arrangement.Upper end cover 68 is bolted on the end cap 70 on cabinet, is provided with gasket 67, the end of cabinet between the two
Lid 70 is bolted on cabinet, while being provided with the bearing for being used to support the rotation of scroll bar axis 73.Turbine wheel shaft 73 with it is small
Belt wheel 54 is coaxially disposed, and is rotated synchronously.
Claims (10)
1. a kind of material property testing machine with nitridation function, it is characterised in that: including rack (1), be fixedly connected on rack
On nitriding box (2), the fixture (3) at clamping workpiece (4) both ends is provided in nitriding box (2), is extended in nitriding box (2)
The heating coil (2a) of the circular workpiece (4) in portion extends to the internal nitrogen sparge tube (2b) of nitriding box (2), on fixture (3)
It is connected with driving fixture and stretches or compress the power mechanism of workpiece (4).
2. a kind of material property testing machine with nitridation function according to claim 1, it is characterised in that: power mechanism
Including being horizontally disposed with moving beam (6), the feed screw nut vice mechanism that driving moving beam (6) vertically moves up and down, driving lead screw
The transmission mechanism of rotation, the mandril (7) being vertically arranged being fixedly connected with moving beam (6) and fixture (3), mandril (7)
It is provided between excircle and nitriding box (2) moving sealing device (5), feed screw nut vice mechanism includes being arranged in moving beam
(6) feed screw nut (10) of two sides and two lead screws (8) being mounted on by bearing on rack (1).
3. a kind of material property testing machine with nitridation function according to claim 2, it is characterised in that: transmission mechanism
Including being fixedly connected on lead screw (8) one end and big belt wheel (49) that lead screw (8) are fixedly and coaxially connected, passing the power of motor (61)
The Wheel train driving gear of big belt wheel (49) is moved, Wheel train driving gear includes that the pinion-endless screw being connected with motor (61) slows down
Device and the arc tooth synchronous belt device that the power of pinion-endless screw retarder is transmitted to big belt wheel (49).
4. a kind of material property testing machine with nitridation function according to claim 2, it is characterised in that: mobile sealing
Device (5) includes the seal casinghousing (5a) being connected with nitriding box (2) being arranged above nitriding box (2) and is arranged in capsul
The mobile plug (5b) of the internal sealing of body (5a) seals mobile plug (5b) and is provided centrally with through the mobile plug (5b) of sealing and mandril
(7) hole matched, seal casinghousing (5a) intracavity bottom are provided with bumper ring (85), seal the side wall of mobile plug (5b) internal holes
On be provided with key (25).
5. a kind of material property testing machine with nitridation function according to claim 1, it is characterised in that: fixture
It (3) include two opposite upper point clamp body and lower seperated fixtures, above dividing clamp body includes falling of being internally provided with that Open Side Down
The upper pouch-shaped fixture (3a) for the trapezoidal cavity set, the upper positioning plate (3e) for being fixed on the lower end pouch-shaped fixture (3a), upper positioning
Plate (3e) is provided centrally with reverse taper hole, and the identical upper wedge block (3c) of a taper is connected in the reverse taper hole, described
Mandril (7) lower end is protruded into the cavity of pouch-shaped fixture (3a) and is fixed by nut and upper pouch-shaped fixture (3a), under mandril (7)
End is withstood on wedge block (3c), and lower fission fixture includes the lower pouch-shaped fixture for being internally provided with the ladder cavity of opening upwards
(3b), be fixedly connected on lower pouch-shaped fixture (3b) upper surface lower positioning plate (3f), be provided with frustum on lower positioning plate (3f)
Shape hole is connected with lower wedge block (3d) identical with taper type hole taper, the lower pouch-shaped fixture (3b) in the taper type hole
The stud (42) that upper end withstands on the lower end lower wedge block (3d) is fixed in cavity.
6. a kind of material property testing machine with nitridation function according to claim 5, it is characterised in that: lower positioning plate
The upper surface of (3f) is provided with two about the symmetrical fixture guide rod (29) being vertically arranged of mandril (7), upper positioning plate
The through-hole matched with fixture guide rod (29) is provided on (3e), upper positioning plate (3e) is socketed in fixture guide rod (29) by through-hole
On.
7. a kind of material property testing machine with nitridation function according to claim 5, it is characterised in that: upper wedge block
(3c) and lower wedge block (3d) are divided into compression experiment wedge block and two kinds of tension test wedge block, compression experiment wedge block
Top surface is provided with the lower wedge block (3d) of the groove matched with workpiece (4) shape and bottom surface is provided with and workpiece (4)
Wedge block (3c) on the groove that shape matches.
8. a kind of material property testing machine with nitridation function according to claim 7, it is characterised in that: the compression
Experiment lower wedge block (3d) and the bottom surface setting that wedge block includes that top surface is provided with the groove matched with workpiece (4) shape
There is wedge block (3c) on the groove matched with workpiece (4) shape.
9. a kind of material property testing machine with nitridation function according to claim 7, it is characterised in that: the stretching
Test wedge block includes upper wedge block (3c) and hyposphene with the hole matched with workpiece (4) outer wall shape being vertically arranged
Shape block (3d), axis of the tension test with wedge block along hole are divided into left and right two parts.
10. a kind of material property testing machine with nitridation function according to claim 1, it is characterised in that: heater wire
Enclosing (2a) is hollow tubular structure, and the internal pipeline of heating coil (2a) is connected with cooling water, and heating coil (2a) extends to
Fixture (3) is intermediate, and the extension of the nozzle and heating coil (2a) of nitrogen sparge tube (2b) is oppositely arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910791881.6A CN110455628B (en) | 2019-08-26 | 2019-08-26 | Material performance testing machine with nitriding function |
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| CN201910791881.6A CN110455628B (en) | 2019-08-26 | 2019-08-26 | Material performance testing machine with nitriding function |
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| CN110455628B CN110455628B (en) | 2021-08-20 |
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| CN112756464A (en) * | 2020-12-18 | 2021-05-07 | 太原理工大学 | Plate thermal drawing/bulging performance testing device based on universal testing machine |
| CN113624605A (en) * | 2021-08-16 | 2021-11-09 | 陕西大工旭航电磁科技有限公司 | Medium strain rate experimental device based on electromagnetic force loading |
| CN114923766A (en) * | 2022-03-16 | 2022-08-19 | 上海氢枫能源技术有限公司 | Hydrogen environment mechanical test device and test method thereof |
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| Publication number | Publication date |
|---|---|
| CN110455628B (en) | 2021-08-20 |
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