CN107185651A - Segmented thrower head and its application process for vertical shaft impact crusher rotor - Google Patents
Segmented thrower head and its application process for vertical shaft impact crusher rotor Download PDFInfo
- Publication number
- CN107185651A CN107185651A CN201710578907.XA CN201710578907A CN107185651A CN 107185651 A CN107185651 A CN 107185651A CN 201710578907 A CN201710578907 A CN 201710578907A CN 107185651 A CN107185651 A CN 107185651A
- Authority
- CN
- China
- Prior art keywords
- hard alloy
- segmented
- hammer body
- alloy bar
- thrower 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 79
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 77
- 238000005476 soldering Methods 0.000 claims abstract description 23
- 238000009432 framing Methods 0.000 claims abstract description 10
- 229910000679 solder Inorganic materials 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 20
- 230000004907 flux Effects 0.000 claims description 15
- 238000005266 casting Methods 0.000 claims description 8
- 230000003116 impacting effect Effects 0.000 claims description 8
- 230000011218 segmentation Effects 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010921 in-depth analysis Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
- B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
Abstract
A kind of segmented thrower head for vertical shaft impact crusher rotor, it includes thrower head hammer body, hammer body groove, segmented hard alloy bar；Described segmented hard alloy bar is made up of at least two hard alloy lattice framings；Hammer body groove is offered on the thrower head hammer body, segmented hard alloy bar is positioned in hammer body groove.Using the present invention of above-mentioned technical proposal, from rotor thrower head start with solution rotor life the problem of, the hard alloy bar breakage problem that thrower head hammer body and hard alloy are caused due to mechanical property difference is avoided using segmented hard alloy bar, more than 150MPa has been arrived into adhesion strength lifting using soldering processes simultaneously, thrower head service life is improved more than 30%, the rotor maintenance cycle is extended.
Description
Technical field
The present invention relates to a kind of building materials disintegrating apparatus --- vertical shaft impact crusher, it is especially a kind of to be used for vertical shaft impacting
The thrower head of formula crusher rotor.
Background technology
Vertical shaft impact crusher is a kind of high-revolving disintegrating apparatus, in practice, because vertical shaft breaks the use longevity of rotor
Life is too short, and repair rate is too high, and technical staff is for the service life of Extending Rotor, often from the construction and mounting means of rotor
It is improved, such as《Modern mechanical》Pointed out in 4th phase in 2013, " Curve guide impeller of vertical shaft impact crusher rotor ", to prolong
Long rotor service life, is improved to：
1st, rotor thrower head is inserted directly into the circular hole of lower disc, and thrower head uses high abrasion buffer plug in type thrower head,
So as to improve impact resistance, Extending Rotor life-span；
2nd, inside and outside guard circle is fixed by bolts on the inside and outside circle of rotor block, so as to ensure the dynamic balancing of rotor, make its be difficult by
Destruction；
3rd, rotor structure is made using high abrasion, high strength steel；
4th, alloy or wear-resistant block of the increase with buffering on rotor.
Using these measures, the service life of rotor does not have effective extension.
The content of the invention
The technical problem to be solved in the present invention is that the problem of caused thrower head and rotor service life are short makes there is provided one kind
With the thrower head for vertical shaft impact crusher rotor of long lifespan.
To solve the above problems, the present invention uses following technical scheme：
A kind of thrower head for vertical shaft impact crusher rotor, it includes thrower head hammer body, hammer body groove, segmented hard
Alloy bar；Described segmented hard alloy bar is made up of at least two hard alloy lattice framings；Opened up on the thrower head hammer body
There is hammer body groove, segmented hard alloy bar is positioned in hammer body groove.
Hammer body groove coordinates with segmented hard alloy strip adoption gap, and two side clearances are 0.1mm~0.5mm.
Soldering solder and solder flux are placed in gap between hammer body groove and segmented hard alloy bar.
Solder is silver-based or copper base solder, and solder flux is fluxing solder flux, is melted soldering by being heated at high temperature, it is ensured that segmentation
Solder filling is melted between formula hard alloy bar and thrower head hammer body complete, cooled down in incubator with case, two side clearance
In insert solder segmented hard alloy bar be connected with thrower head hammer body by soldering tech.
Width between two neighboring hard alloy lattice framing is 0.1 ~ 3mm；And put between two neighboring hard alloy lattice framing
Put soldering solder and solder flux.
A kind of to solve the method that vertical shaft impacting breaks material casting head rupture in rotor, it comprises the following steps：
1., broken in vertical shaft impacting under working condition, finite element analysis is carried out to the stressing conditions of thrower head in rotor, material casting is found out
Multiple stress concentration points of head；
2., according to stress concentration point, the hop count of segmented hard alloy bar is determined；
3., segmented hard alloy bar is positioned in hammer body groove, between hammer body groove and segmented hard alloy bar between
Soldering solder and solder flux are placed in gap, is melted soldering by being heated at high temperature, it is ensured that segmented hard alloy bar and thrower head
Solder filling is melted between hammer body complete, is cooled down in incubator with case, inserted in two side clearance solder by alloy bar with
Hammer body is connected by soldering tech.
The hop count of the segmented hard alloy bar segmentation is calculated by following formula：
L1=a*n*L2；
In formula：
L1-thrower head hammer body overall length or hard alloy bar overall length；
A-correction factor；
The hop count of n-hard alloy bar；
L2-rotor allows material maximum feed size；
The correction factor a and segmented hard alloy bar and thrower head hammer body section factor and material maximum feed size have
Close, the scope of the correction factor a is between 1.1 ~ 3.
Using the present invention of above-mentioned technical proposal, from rotor thrower head start with solution rotor life the problem of, using point
Segmentation hard alloy bar avoids the hard alloy bar that thrower head hammer body and hard alloy caused due to mechanical property difference and broken
Problem is split, while adhesion strength lifting has been arrived into more than 150MPa using soldering processes, thrower head service life is improved 30%
More than, extend the rotor maintenance cycle.
Brief description of the drawings
Fig. 1 is thrower head schematic view of the mounting position.
Fig. 2 is the stereogram of thrower head.
Fig. 3 is the front view of thrower head.
Embodiment
In practice, the service life that vertical shaft breaks rotor is too short, it is necessary to where due to finding the problem.Through repeatedly examination
Issue after examination and approval now, material speed in the thrower head in casting rotor aside is up to 60 ~ 85m/s in rotor, it is therefore seen that material is in rotor
The active force of thrower head is larger, then influence most important to rotor service life as the thrower head of protection rotor.It is vertical at present
Shaft impact crusher rotor is to be bonded hard alloy bar with hammer body by binding agent with thrower head, the structure and technique
There is problems with：1st, the hard alloy bar in thrower head comes off：The hammer body and hard alloy strip adoption adhesive of thrower head glue
Knot gets up, but adhesion strength is typically relatively low（General adhesion strength is in below 40MPa）；2nd, the hard alloy bar in thrower head makes
Easily it is broken during, wear and tear vertical shaft impact crusher rotor, has had a strong impact on the normal operation of equipment.
Because the hard alloy bar in thrower head in rotor is easily broken in use, the use longevity of rotor is caused
Life is greatly shortened.As a result, technical staff addresses the service life problem of thrower head.It is easy to think, changes hard
The material of alloy bar, chooses intensity and all preferable material of ductility, such as exchanges model of steel etc., but from actual
From the point of view of working condition, effect is unsatisfactory.
By the in-depth analysis of technical staff, find：First, the hammer body bonded with hard alloy bar is carbon steel or steel alloy
Material, because hard alloy and carbon steel or steel alloy mechanical property gap are larger, causes the stress of hard alloy bar excessively to collect
In, it is broken.Secondly, too big into the broken material size of vertical shaft, hard alloy bar length is oversize, and material is to hard alloy bar
Abrasion and damaging impact it is larger.The thrower head of vertical shaft impact crusher rotor is caused to exist because the above etc. reason is integrated
Easily it is broken during use.
Find out after reason, technical staff is improved thrower head.
As Figure 1-3, a kind of thrower head for vertical shaft impact crusher rotor, it includes thrower head hammer body 1, hammer
Body groove 3, segmented hard alloy bar 2；Hammer body groove 3, segmented hard alloy bar 2 are offered on the thrower head hammer body 1
It is positioned in hammer body groove 3.Above-mentioned segmented hard alloy bar 2 is made up of at least two hard alloy lattice framings.
Hammer body groove coordinates with segmented hard alloy strip adoption gap, and two side clearances are 0.1mm~0.5mm, you can
Think the arbitrary value in 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm.In addition, segmented hard alloy bar it is isometric or
It is long.
Width between two neighboring hard alloy lattice framing is 0.1 ~ 3mm, you can think middle arbitrary value, such as 0.1mm,
0.5mm, 0.8mm, 1mm, 2mm, 3mm etc.；And soldering solder and solder flux are placed between two neighboring hard alloy lattice framing.
Soldering solder and solder flux are placed in gap between hammer body groove and segmented hard alloy bar.Solder is silver-based
Or copper base solder, solder flux is fluxing solder flux, is melted soldering by being heated at high temperature, it is ensured that segmentation hard alloy bar and thrower head
Solder filling is melted between hammer body complete, is cooled down in incubator with case, inserted in two side clearance solder by alloy bar with
Hammer body is connected by soldering tech.
A kind of to solve the method that vertical shaft impacting breaks material casting head rupture in rotor, it comprises the following steps：
1., broken in vertical shaft impacting under working condition, finite element analysis is carried out to the stressing conditions of thrower head in rotor, material casting is found out
Multiple stress concentration points of head；
2., according to stress concentration point, the hop count of hard alloy bar is determined；
3., hard alloy bar is positioned in hammer body groove, put in the gap between hammer body groove and segmented hard alloy bar
Soldering solder and solder flux are put, soldering is melted by being heated at high temperature, it is ensured that between segmentation hard alloy bar and thrower head hammer body
Melt solder filling complete, cooled down in incubator with case, inserting solder in two side clearance passes through alloy bar with hammer body
Soldering tech is connected.
The hop count of above-mentioned segmented hard alloy bar segmentation is calculated by following formula：
L1=a*n*L2,
In formula：
L1-thrower head hammer body overall length or hard alloy bar overall length；
A-correction factor；
The hop count of n-hard alloy bar point；
L2-rotor allows material maximum feed size；
The correction factor a and segmented hard alloy bar and thrower head hammer body section factor and material maximum feed size have
Close, the scope of the correction factor a is between 1.1 ~ 3.
Finally it should be noted that：Above-described embodiment is only intended to clearly illustrate patent example of the present invention, and not
Restriction to embodiment, for those of ordinary skill in the field, can also make on the basis of the above description
Other various forms of changes or variation, need not be exhaustive here, and the obvious change or change thus amplified out
It is dynamic to still fall within protection scope of the present invention.
Claims (7)
1. a kind of segmented thrower head for vertical shaft impact crusher rotor, it is characterised in that：It includes thrower head hammer body
（1）, hammer body groove（3）, segmented hard alloy bar（2）；Described segmented hard alloy bar（2）Closed by least two hard
Golden lattice framing composition；The thrower head hammer body（1）On offer hammer body groove（3）, segmented hard alloy bar（2）It is positioned over hammer body
Groove（3）It is interior.
2. the segmented thrower head according to claim 1 for vertical shaft impact crusher rotor, it is characterised in that：Hammer
Body groove（3）With segmented hard alloy bar（2）Coordinated using gap, two side clearances are 0.1mm~0.5mm.
3. the segmented thrower head according to claim 2 for vertical shaft impact crusher rotor, it is characterised in that：Hammer
Body groove（3）With segmented hard alloy bar（2）Between gap in place soldering solder and solder flux.
4. the segmented thrower head according to claim 3 for vertical shaft impact crusher rotor, it is characterised in that：Pricker
Expect for silver-based or copper base solder, solder flux is fluxing solder flux, is melted soldering by being heated at high temperature, it is ensured that segmented hard alloy
Bar（2）With thrower head hammer body（1）Between fusing solder filling it is complete, cool down, filled out in two side clearance with case in incubator
Enter solder by segmented hard alloy bar（2）With thrower head hammer body（1）It is connected by soldering tech.
5. the segmented thrower head according to claim 1 for vertical shaft impact crusher rotor, it is characterised in that：Phase
Width between adjacent two hard alloy lattice framings is 0.1 ~ 3mm；And soldering pricker is placed between two neighboring hard alloy lattice framing
Material and solder flux.
6. a kind of solve the method that vertical shaft impacting breaks material casting head rupture in rotor, it is characterised in that it comprises the following steps：
1., broken in vertical shaft impacting under working condition, finite element analysis is carried out to the stressing conditions of thrower head in rotor, material casting is found out
Multiple stress concentration points of head；
2., according to stress concentration point, segmented hard alloy bar is determined（2）Hop count；
3., by segmented hard alloy bar（2）It is positioned over hammer body groove（3）It is interior, hammer body groove and segmented hard alloy bar it
Between gap in place soldering solder and solder flux, soldering is melted by being heated at high temperature, it is ensured that segmented hard alloy bar with
Solder filling is melted between thrower head hammer body complete, cooled down in incubator with case, solder will be inserted in two side clearance to be closed
Gold bar is connected with hammer body by soldering tech.
7. according to claim 6 solve the method that vertical shaft impacting breaks material casting head rupture in rotor, it is characterised in that：It is described
The hop count of segmented hard alloy bar segmentation is calculated by following formula：
L1=a*n*L2；
In formula：
L1-thrower head hammer body overall length or hard alloy bar overall length；
A-correction factor；
The hop count of n-hard alloy bar；
L2-rotor allows material maximum feed size；
The correction factor a and segmented hard alloy bar and thrower head hammer body section factor and material maximum feed size have
Close, the scope of the correction factor a is between 1.1 ~ 3.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710578907.XA CN107185651B (en) | 2017-07-17 | 2017-07-17 | Sectional type material throwing head for rotor of vertical shaft impact crusher and application method thereof |
| RU2017143346A RU2671388C1 (en) | 2017-07-17 | 2017-12-12 | Rotor crushing element used in impact crusher with vertical shaft and method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710578907.XA CN107185651B (en) | 2017-07-17 | 2017-07-17 | Sectional type material throwing head for rotor of vertical shaft impact crusher and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107185651A true CN107185651A (en) | 2017-09-22 |
| CN107185651B CN107185651B (en) | 2024-03-15 |
Family
ID=59882549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710578907.XA Active CN107185651B (en) | 2017-07-17 | 2017-07-17 | Sectional type material throwing head for rotor of vertical shaft impact crusher and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107185651B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110756277A (en) * | 2019-09-12 | 2020-02-07 | 来宾市兴宾区日昌升新材料有限公司 | Material throwing head of vertical shaft type crusher |
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| CA1152387A (en) * | 1981-06-08 | 1983-08-23 | Damian V. Gullotti | Process for joining narrow width thin gage metal or alloy strip |
| JPH0252048A (en) * | 1988-08-12 | 1990-02-21 | Kobe Steel Ltd | Preparation of impact element for impact type crusher |
| JPH05345139A (en) * | 1992-06-11 | 1993-12-27 | Babcock Hitachi Kk | Roller type grinding apparatus and grinding method using the same |
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| CN204583440U (en) * | 2015-02-05 | 2015-08-26 | 烟台艾迪精密机械股份有限公司 | A kind of large-scale quartering hammer forges drill steel |
| CN205903945U (en) * | 2016-07-20 | 2017-01-25 | 徐工集团工程机械有限公司 | Broken material throwing head that uses of vertical scroll |
| CN106744877A (en) * | 2016-12-21 | 2017-05-31 | 成都新柯力化工科技有限公司 | A kind of method that dry grinding stripping prepares the device and production Graphene of Graphene |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1152387A (en) * | 1981-06-08 | 1983-08-23 | Damian V. Gullotti | Process for joining narrow width thin gage metal or alloy strip |
| JPH0252048A (en) * | 1988-08-12 | 1990-02-21 | Kobe Steel Ltd | Preparation of impact element for impact type crusher |
| JPH05345139A (en) * | 1992-06-11 | 1993-12-27 | Babcock Hitachi Kk | Roller type grinding apparatus and grinding method using the same |
| CA2144123A1 (en) * | 1994-03-11 | 1995-09-12 | James B. Graybill | Pulverizing and grinding hammer |
| US5950944A (en) * | 1998-08-18 | 1999-09-14 | Larsen; Darrell R. | Laminar mill liner |
| JP2010156668A (en) * | 2008-05-09 | 2010-07-15 | Nippon Steel Corp | Fatigue life estimation device of welded structure, fatigue life estimation method of welded structure, and computer program |
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| JP2012184996A (en) * | 2011-03-04 | 2012-09-27 | Mitsui Eng & Shipbuild Co Ltd | Apparatus and method for evaluating welding shape |
| CN102962114A (en) * | 2012-09-12 | 2013-03-13 | 哈尔滨工业大学 | Breaking hammerhead and its manufacturing method |
| CN203470077U (en) * | 2013-08-28 | 2014-03-12 | 郑州鼎盛工程技术有限公司 | High-wear-resistant impacting and breaking knife head with hammer handle brazed by hard alloy |
| CN203610171U (en) * | 2013-11-21 | 2014-05-28 | 上海东蒙路桥机械有限公司 | Polishing head device of vertical shaft impact crusher |
| CN104209163A (en) * | 2014-09-06 | 2014-12-17 | 北京工业大学 | Wear resistant composite hammerhead and preparation method thereof |
| CN204583440U (en) * | 2015-02-05 | 2015-08-26 | 烟台艾迪精密机械股份有限公司 | A kind of large-scale quartering hammer forges drill steel |
| CN205903945U (en) * | 2016-07-20 | 2017-01-25 | 徐工集团工程机械有限公司 | Broken material throwing head that uses of vertical scroll |
| CN106744877A (en) * | 2016-12-21 | 2017-05-31 | 成都新柯力化工科技有限公司 | A kind of method that dry grinding stripping prepares the device and production Graphene of Graphene |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110756277A (en) * | 2019-09-12 | 2020-02-07 | 来宾市兴宾区日昌升新材料有限公司 | Material throwing head of vertical shaft type crusher |
| CN110756277B (en) * | 2019-09-12 | 2021-06-01 | 来宾市兴宾区日昌升新材料有限公司 | Material throwing head of vertical shaft type crusher |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107185651B (en) | 2024-03-15 |
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