CN106441848A - Riser removing hammer test device - Google Patents
Riser removing hammer test device Download PDFInfo
- Publication number
- CN106441848A CN106441848A CN201610889185.5A CN201610889185A CN106441848A CN 106441848 A CN106441848 A CN 106441848A CN 201610889185 A CN201610889185 A CN 201610889185A CN 106441848 A CN106441848 A CN 106441848A
- Authority
- CN
- China
- Prior art keywords
- sample
- riser
- sleeve
- base
- rising head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- 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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
Abstract
The invention relates to a riser removing hammer test device. The riser removing hammer test device comprises a base. A plurality of cross beams and longitudinal beams are welded together to form the base. The riser removing hammer test device is characterized in that the riser removing hammer test device further comprises two sample sleeves welded to the cross beams of the base; the sample sleeves and the cross beams are welded together through three pairs of horizontally-arranged clamping boards which are distributed at the outer sides of the sample sleeves from top to bottom; the clamping boards are provided with arc-shaped grooves which are shaped to match the outer walls of the sample sleeves; the upper planes of the sample sleeves are flush with the upper plane of the base; an adjustment sheath is arranged in one of the sample sleeves; the outer diameter of the adjustment sheath is consistent with the inner diameter of the sample sleeve; the inner diameter of the adjustment sheath is consistent with the diameter of a destroying sample; and pin holes are formed in the sample sleeves and the adjustment sheath respectively.
Description
Technical field
The application belongs to foundry machinery field, and the test relating to the rising head eliminating equipment in a kind of foundry goods postprocessing working procedures fills
Put.
Background technology
During casting industry castings production, the particularly production of heavy castings, the removal of a dead head always difficulty
Topic.Conventionally employed gas cutting, manually with sledgehammer hammering or use driving metal pouring weight of slinging to clash into rising head, so can bring consumption
Energy, casting quality damage, efficiency is low and uneasy congruence problem.For solving this difficult problem, one is used now to go rising head hammer to remove
Rising head.The casing alignment rising head that rising head will be gone to hammer into shape, presses the button valve, and piston rod can be gone out from casing, strikes off with enough energy
Rising head.Before going rising head hammer to sell, ballistic work size, the rising head diameter of the unlike material that can strike off and service life are must
It is understood that parameter.Before not inventing this experimental rig, hammer the big of the casting pressing port diameter that can strike off into shape to test rising head
Little, find suitable foundry goods producer and test.Although this kind of method can reflect the ability to work that rising head is hammered into shape really,
But being limited by foundry goods type, size, foundry goods producer has various doubt and worry simultaneously.
Ballistic work is an important parameter of rising head hammer equipment, directly affects the size striking off rising head diameter.
《Pneumatic hammer technical conditions》（GB/T25721-2010）In, measuring blow energy with jumping-up lead block, method is as shown in Figure 2.Actual
Ballistic work E1By formula（1）Calculate.
E1=K*d0 3[2.7a+4(a2+a4)]……………………………………………………(1)
In formula：E1Ballistic work, unit is joule（J）；d0Lead block diameter before hitting, unit is millimeter（mm）；h0——
Lead block height before hitting, unit is millimeter（mm）；h1Lead block height after once hitting, unit is millimeter（mm）；a=(h0-
h1)/h0；K=0.01 J/mm3.
The method of this mensuration pneumatic hammer blow energy only vertically need to be put lead block style in the horizontal plane, and pneumatic hammer is by upper
Down vertically impact sample, by and go rising head hammer can only be level impact sample.
For horizontal positioned lead block sample, it is necessary to sample is horizontally fixed on the riser being perpendicular to ground.Once exist before
Fixing an internal diameter size on riser consistent with lead block specimen finish, the cylinder that height is lead block specimen finish 1/3rd, by lead
Post sample is directly placed in cylinder, the problem so solving lead block sample horizontal positioned, but after impact lead block sample, lead
Column bottom diameter can become big, and the existence of cylinder can limit the expansion bottom lead block, in turn results in the height of lead block after once impacting
The authenticity of degree.
Ballistic work and specimen cross section amass certain relation：ak=Ak/F（2）
akThe impact toughness of material, unit is joules per cm（J/cm2）；
AkBallistic work, unit is joule（J）；
Sectional area at F sample break, unit is square centimeter（cm2）
The impact toughness value of every kind of material is certain, so the impact toughness value being recorded by test can calculate permissible in theory
The rising head diameter striking off.
Content of the invention
This application provides one and remove rising head hammer experimental rig, can test, according to jumping-up lead block method, the impact going rising head to hammer into shape
Work(；The diameter of the unlike material sample that can strike off can be represented intuitively by failure test simultaneously；This experimental rig also may be used
To carry out fatigue test, test number of blows is to the damaged condition removing rising head hammer equipment.
This programme solves the problems referred to above and employed technical scheme comprise that：One removes rising head hammer experimental rig, and it includes base, the end
Seat is made up of together with longitudinal beam welding some crossbeams, it is characterized in that two the sample sleeves being welded on base crossbeam, sample
Be provided with from top to bottom outside sleeve three to horizontally disposed clamp by sample sleeve together with beam welding, on clamp arrange
There is the deep-slotted chip breaker matching with sample sleeve outer wall shape；Plane and planes align on base on sample sleeve, one wherein
Placing adjusting sleeve in sample sleeve, adjusting sleeve external diameter is consistent with the internal diameter of sample sleeve, adjusting sleeve internal diameter and destruction specimen finish
Unanimously, sample sleeve and adjusting sleeve all having pin-and-hole, inserting bearing pin can support for putting into sample therein.
The concrete feature of this programme also has, and on base, two sample sleeve centre positions are provided with riser, bottom riser with
Beam welding, the back side be provided with two riser gussets respectively with riser and beam welding, strengthen riser impact resistance, riser
On have the unthreaded hole passing through for bolt, a bolt passes through unthreaded hole and screws in lead in the screwed hole that lead block sample lower center position is provided with
Post sample is fixed on riser, by the size of jumping-up lead block method test ballistic work.
There is cover plate base upper end, cover plate is provided with hole to avoid two sample sleeves, riser and riser gusset,
Being provided with square hole on the cover plate of the sample sleeve left and right sides, facilitating operating personnel to insert and extract bearing pin, base is provided with sample tap
The destruction sample in adjusting sleeve can be taken out.
Perimeter at base is provided with safety guard, and when being possible to prevent failure test, sample flies out and makes surrounding environment
The injury becoming.
Base is provided with some gussets, gusset and longitudinal beam welding, below longeron, is provided with supporting plate, at longeron, gusset
Cement is injected so that it is be enough to resist the impact to base for the rising head hammer without producing displacement, phase in the space surrounding with supporting plate
Accuracy to Influence of Displacement ballistic work.
This programme provides the benefit that：Place the diameter tired examination consistent with sample sleeve diameter at fatigue testing specimen sleeve
Sample, is used for doing fatigue test, and test number of blows is to the damaged condition removing rising head hammer equipment；Place broken in destroying sample sleeve
Bad sample, selects suitable adjusting sleeve according to the diameter of required destruction sample, destruction sample is inserted into adjusting sleeve
In, it is used for doing failure test, test goes rising head to hammer the diameter of the unlike material sample that can strike off into shape；Pin is extracted after striking off sample
Axle, takes out sample by sample tap.This programme is for the comprehensive test device removing rising head hammer collection several functions and one；Can
To test away the specimen finish size of the ballistic work of rising head hammer and the unlike material that can strike off, can also test simultaneously and hit
Beat number of times to the extent of damage going rising head to hammer into shape, it is judged that the service life of its inner seal；The mobility of this experimental rig, logical
Cross in base injection cement so that it is be enough to resist rising head hammer to the impact of base without producing displacement, rather than the end of by
Seat fixes on the ground.
Brief description
With embodiment, the application is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is that casting pressing port schematic diagram is played in rising head hammering.Fig. 2 is rising head hammer experimental rig structural representation；Fig. 3 is
The A-A view of Fig. 2；Fig. 4 is the B-B view of Fig. 2；Fig. 5 is M portion enlarged drawing in Fig. 2（Remove safety guard and cover plate）；Fig. 6 is
K direction view in Fig. 3（Remove safety guard）.
In figure：1-safety guard；2-base；3-fatigue testing specimen；4-lead block sample；5-destroys sample；6-adjusting sleeve；7-sells
Axle；8-fatigue testing specimen sleeve；9-riser；10-cover plate；11-square hole；12-sample tap；13-destroys sample sleeve；14-clamp；
15-riser gusset；16-gusset；17-longeron；18-supporting plate；19-crossbeam；20-goes rising head to hammer into shape；21-casing；22-rising head.
Detailed description of the invention
As in figure 2 it is shown, one removes rising head hammer experimental rig, it includes base 2, and base 2 is by some crossbeams 19 and longeron 17
Weld together composition, also include two the sample sleeves being welded on crossbeam 19, be provided with from top to bottom outside sample sleeve
Sample sleeve and crossbeam 19 are welded together by three pairs of horizontally disposed clamps 14, clamp 14 are provided with and sample sleeve outer wall
The deep-slotted chip breaker that shape matches；Plane and planes align on base 2 on sample sleeve, sample sleeve includes fatigue testing specimen sleeve 8
With destruction sample sleeve 13, in destroying sample sleeve 13, place adjusting sleeve 6, adjusting sleeve 6 external diameter and destruction sample sleeve 13
Internal diameter is consistent, and adjusting sleeve 6 internal diameter is consistent with destroying sample 5 diameter, destroys sample sleeve 13 and fatigue testing specimen sleeve 8 and adjusts
All having pin-and-hole on set 6, bearing pin 7 can support for putting into sample therein.
On base 2, two sample sleeve centre positions are provided with riser 9, weld with crossbeam 19 bottom riser 9, and the back side is arranged
Have two riser gussets 15 to weld with riser 9 and crossbeam 19 respectively, strengthen the impact resistance of riser 9, riser 9 has for bolt
The unthreaded hole passing through, a bolt passes through unthreaded hole and screws in the screwed hole that lead block sample 4 lower center position is provided with by lead block sample 4 admittedly
It is scheduled on riser 9, by the size of jumping-up lead block method test ballistic work.
There is cover plate 10 base 2 upper end, cover plate 10 is provided with hole to avoid two sample sleeves, riser 9 and riser
Gusset 15, the cover plate 10 of sample sleeve right position is provided with square hole 11, facilitates operating personnel to insert and extracts bearing pin 7, the end
Seat 2 is provided with the destruction sample 5 that sample tap 12 can take out in adjusting sleeve 6.
Perimeter at base 2 is provided with safety guard 1, and when being possible to prevent failure test, sample flies out to surrounding environment
The injury causing.
Being provided with some gussets 16 in base 2, gusset 16 welds with longeron 17, is provided with supporting plate 18 below longeron 17,
Inject cement in the space that longeron the 17th, gusset 16 and supporting plate 18 surround so that it is be enough to resist the impact to base for the rising head hammer
Without producing displacement, relative displacement affects the accuracy of ballistic work.
Ballistic work is tested：《Pneumatic hammer technical conditions》（GB/T25721-2010）Middle regulation, according to the size of blow energy
Select the lead block sample of suitable size specification.By the operation logic going rising head to hammer into shape, get on rising head from aerodynamic point computational theory
The ballistic work of hammer, selects the lead block sample 4 of appropriate size.Selected lead block sample 4 is fixed by bolts to the riser 9 of base 2
On, the operating pressure going rising head to hammer into shape being adjusted to desirable pressure, removes rising head hammer casing alignment lead block sample, level impacts, according to lead
Post sample impact before and after decrement calculate operating pressure go down rising head hammer ballistic work.
Failure test：According to the ballistic work above tested and sample material, by formula（2）Calculating goes rising head to hammer into shape can
The sample maximum dimension D striking offmax, thus select internal diameter to be DmaxAdjusting sleeve 6, place it in the destruction sample set of base 2
In cylinder 13, bearing pin 7 is inserted by the square hole 11 destroying sample sleeve 13, by a diameter of DmaxDestruction sample 5 be placed on adjusting sleeve
In 6.Spend rising head hammering and play sample, if can strike off, then the diameter destroying sample 5 is increased 10mm, change corresponding tune
A whole set of 6, again carrying out pummel test, if being still able to strike off, continuing the diameter destroying sample 6 is increased 10mm, until not
Can strike off；If can not strike off, then the diameter destroying sample 5 is reduced 10mm, change corresponding adjusting sleeve 6, again hit
Play test.By that analogy, until drawing the maximum dimension D of the destruction sample that can strike offReal.
Fatigue test：Diameter is selected to be more than DRealFatigue testing specimen 3, in the fatigue testing specimen sleeve 8 of inserted base 2, bearing pin 7 is made
For supporting, remove the rising head hammer accumulative impact certain number of times of fatigue testing specimen 3, check the damage of internal structure and the seal going rising head to hammer into shape
State.
Claims (5)
1. removing a rising head hammer experimental rig, it includes base, and base is made up of together with longitudinal beam welding some crossbeams, and it is special
Levy two the sample sleeves being welded on base crossbeam, be provided with three outside sample sleeve from top to bottom to horizontally disposed card
Sample sleeve together with beam welding, clamp is provided with the deep-slotted chip breaker matching with sample sleeve outer wall shape by plate；Examination
Plane and planes align on base on sample sleeve, place adjusting sleeve, adjusting sleeve external diameter and sample wherein in a sample sleeve
The internal diameter of sleeve is consistent, and adjusting sleeve internal diameter is consistent with destroying specimen finish, and sample sleeve and adjusting sleeve all have pin-and-hole.
2. according to claim 1 go rising head hammer experimental rig, it is characterized in that two sample sleeve centre positions on base
Be provided with riser, bottom riser and beam welding, the back side be provided with two riser gussets respectively with riser and beam welding, increase
The impact resistance of strong riser, riser has the unthreaded hole passing through for bolt, and a bolt passes through unthreaded hole and screws in lead block sample bottom center
The screwed hole that position is provided with is fixed on lead block sample on riser.
3. according to claim 1 go rising head hammer experimental rig, it is characterized in that there is cover plate base upper end, cover plate be provided with
Hole, to avoid two sample sleeves, riser and riser gusset, is provided with square hole on the cover plate of the sample sleeve left and right sides,
Facilitating operating personnel to insert and extracting bearing pin, base is provided with sample tap.
4. according to claim 1 go rising head hammer experimental rig, it is characterized in that the perimeter at base is provided with safety
Guard shield.
5. according to claim 1 go rising head hammer experimental rig, it is characterized in that base is provided with some gussets, gusset with
Longitudinal beam welding, is provided with supporting plate below longeron, injects cement in the space that longeron, gusset and supporting plate surround.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610889185.5A CN106441848B (en) | 2016-10-11 | 2016-10-11 | Dead head hammer removing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610889185.5A CN106441848B (en) | 2016-10-11 | 2016-10-11 | Dead head hammer removing test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106441848A true CN106441848A (en) | 2017-02-22 |
| CN106441848B CN106441848B (en) | 2021-03-12 |
Family
ID=58173379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610889185.5A Expired - Fee Related CN106441848B (en) | 2016-10-11 | 2016-10-11 | Dead head hammer removing test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106441848B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3772218B2 (en) * | 2003-07-15 | 2006-05-10 | 独立行政法人農業・生物系特定産業技術研究機構 | Handle hammer type soil collector |
| CN101339098A (en) * | 2008-07-31 | 2009-01-07 | 南阳开天工程机械有限公司 | Hydraulic breaking hammer performance measurement system |
| CN102667008A (en) * | 2009-12-21 | 2012-09-12 | 山特维克矿山工程机械有限公司 | Method for determining usage rate of breaking hammer, breaking hammer, and measuring device |
| CN202453255U (en) * | 2012-02-27 | 2012-09-26 | 陈潇 | Plastic pendulum bob type impact and tensile test device |
| CN103048075A (en) * | 2013-01-08 | 2013-04-17 | 浙江大学 | Impact force testing device |
| CN103162983A (en) * | 2013-02-19 | 2013-06-19 | 西南石油大学 | Evaluation device and evaluation method for air hammer performance |
| JP2015094648A (en) * | 2013-11-12 | 2015-05-18 | 株式会社東洋精機製作所 | Impact type testing device |
| CN105784234A (en) * | 2016-04-01 | 2016-07-20 | 武汉理工大学 | Impact energy and impact frequency measuring device for electrically-driven pneumatic hammers |
| CN206056952U (en) * | 2016-10-11 | 2017-03-29 | 济南铸造锻压机械研究所有限公司 | Remove rising head hammer assay device |
-
2016
- 2016-10-11 CN CN201610889185.5A patent/CN106441848B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3772218B2 (en) * | 2003-07-15 | 2006-05-10 | 独立行政法人農業・生物系特定産業技術研究機構 | Handle hammer type soil collector |
| CN101339098A (en) * | 2008-07-31 | 2009-01-07 | 南阳开天工程机械有限公司 | Hydraulic breaking hammer performance measurement system |
| CN102667008A (en) * | 2009-12-21 | 2012-09-12 | 山特维克矿山工程机械有限公司 | Method for determining usage rate of breaking hammer, breaking hammer, and measuring device |
| CN202453255U (en) * | 2012-02-27 | 2012-09-26 | 陈潇 | Plastic pendulum bob type impact and tensile test device |
| CN103048075A (en) * | 2013-01-08 | 2013-04-17 | 浙江大学 | Impact force testing device |
| CN103162983A (en) * | 2013-02-19 | 2013-06-19 | 西南石油大学 | Evaluation device and evaluation method for air hammer performance |
| JP2015094648A (en) * | 2013-11-12 | 2015-05-18 | 株式会社東洋精機製作所 | Impact type testing device |
| CN105784234A (en) * | 2016-04-01 | 2016-07-20 | 武汉理工大学 | Impact energy and impact frequency measuring device for electrically-driven pneumatic hammers |
| CN206056952U (en) * | 2016-10-11 | 2017-03-29 | 济南铸造锻压机械研究所有限公司 | Remove rising head hammer assay device |
Non-Patent Citations (1)
| Title |
|---|
| 刘占锋: "液压锤性能测试装置参数化虚拟样机的设计与研究", 《机械设计》 * |
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| Publication number | Publication date |
|---|---|
| CN106441848B (en) | 2021-03-12 |
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