CN202377043U - Comb-tooth type hammer of crusher - Google Patents
Comb-tooth type hammer of crusher Download PDFInfo
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- CN202377043U CN202377043U CN2011205246122U CN201120524612U CN202377043U CN 202377043 U CN202377043 U CN 202377043U CN 2011205246122 U CN2011205246122 U CN 2011205246122U CN 201120524612 U CN201120524612 U CN 201120524612U CN 202377043 U CN202377043 U CN 202377043U
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Abstract
The utility model relates to a comb-tooth type hammer of a crusher. A body of the comb-tooth type hammer is made of forged alloy steel, deposited metal is integrally covered on the surface of the body, and consists of a transition layer and a surface abrasion-resistant layer which are combined, a plurality of wedge grooves are arranged at a cutting edge of the body, the deposited metal consisting of the transition layer and the surface abrasion-resistant layer is covered in each wedge groove by means of surfacing, the thickness of the transition layer ranges from 2mm to 4mm, a residual space of each wedge groove is filled by the corresponding surface abrasion-resistant layer, and surface abrasion-resistant layers with smooth appearances are formed. The comb-tooth type hammer of the crusher is simple in structure, reasonable in composition, high in interface bonding strength, strength and toughness, outstanding in abrasion resistance and long in service life.
Description
Technical field
The utility model relates to a kind of comb-tooth-type disintegrating machine annex, specifically a kind of comb-tooth-type grinder hammerhead of resurfacing welding material processing.
Background technology
China is coal production big country, and the raw coal that obtains through down-hole or strip mining transformation need pass through the multiple tracks broken process and could get into deep-processing process such as washing.Therefore, the consumption of grinder hammerhead is huge.Domestic present situation is: disintegrating machine and consumable accessory thereof---tup, and most of import Britain MMD Company products, the service life of MMD series tup is generally at 2-3 month.Up to now, localization process is not ideal enough always, and the level in service life of homemade tup can only reach 1/3～1/2 of imported product usually.Consume a large amount of foreign exchanges on the one hand, on the other hand, seriously restrict effective performance of coal enterprise's production efficiency.
Generally speaking, the disintegrating machine particularly main failure forms and the common oppositely rolling roller crusher of coal breaker tup is similar, is by due to the heavily stressed squash type wearing and tearing.Different with common oppositely rolling roller crusher is, each broach all is equivalent to an independently cantilever beam in working order down, and except that the flank of tooth need bear bigger compression and strong abrasive wear, tooth root also will bear huge shear stress.This has just proposed challenge to selection.Therefore; Home and abroad manufacturing enterprise has all discharged the anti-wear performance height but the big casting high-chromium alloy of fragility aspect selection at present; Then select for use casting potassium steel or medium carbon low alloy steel to cooperate the manufacturing of rational heat treatment process implementing, in the hope of taking into account wear-resistant and toughness and tenacity.In fact, this selection mode and manufacturing approach have too much been looked after obdurability and have been weakened the performance of abrasion resistance properties.Therefore, present case is: comprise external product, and with regard to service life, still not ideal enough.
Summary of the invention
The utility model technical problem to be solved is the deficiency that overcomes above-mentioned prior art, provides a kind of simple in structure, forms rationally, has higher intensity and toughness, and wear resistance is outstanding, the comb-tooth-type grinder hammerhead of long service life.
The technical scheme that the utility model solves the problems of the technologies described above employing is: a kind of comb-tooth-type grinder hammerhead; Its parent adopts cast alloy steel; Parent surface integral coating has deposited metal, and deposited metal is combined by transition zone and surface wear-resistant layer two parts, it is characterized in that: the cutting edge position of said parent is provided with some wedge-shaped slots; Built-up welding is covered with the deposited metal of being made up of described transition zone and surface wear-resistant layer in the wedge-shaped slot; Wherein transition region thickness is 2-4mm, and the remaining space of wedge-shaped slot is filled by surface wear-resistant layer, constitutes appearance even curface wearing layer.
The said transition region thickness of the utility model is 2-4mm, and the surface abrasion resistance layer thickness is 3-8mm.
The utility model is separately considered the whole obdurability of tup parts and abrasion resistance properties, processes the bimetal wear resistant parts through technique for overlaying, the working surface of tup is carried out wear-resistant built-up welding strengthen; Against existing technologies; The utility model is started with from the material microstructure, takes into account combination property and considers, and integral coating cooperates cutting edge position wedge shape to strengthen; Combination properties such as wear-resistant, toughness and tenacity, anti-extrusion and shock resistance are outstanding, and it is formed rationally.Deposited metal is combined by transition zone and superficial layer two parts, when guaranteeing high antiwear property, has improved interface binding power, avoids producing obscission.Significantly improve service life.Test data shows, the utlity model has higher intensity and toughness, and wear resistance is outstanding, and long service life can reach 4-6 month its service life, is more than 2 times of import like product.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the assembling sketch map of a kind of comb-tooth-type grinder hammerhead of the utility model.
Fig. 2 is that the A-A of tup among Fig. 1 is to schematic cross-section.
Fig. 3 is that the B-B of tup among Fig. 1 is to schematic cross-section.
Fig. 4 is the assembling sketch map of the another kind of comb-tooth-type grinder hammerhead of the utility model.
Fig. 5 is the schematic cross-section of tup among Fig. 4.
Label among the figure is: 1. parent, 2. deposited metal, 3. wedge-shaped slot.
The specific embodiment
A kind of comb-tooth-type grinder hammerhead of the utility model is processed the bimetal wear resistant parts through technique for overlaying.Its parent adopts cast alloy steel, and concrete component content is: C 0.25～0.42%, Cr 0.6～6%, Si 0.8～1.8%, Mn 0.5～2.8%, Nb 0.3～1.2, surplus is Fe.Get final heat treatment hardness HRC28～38.This precursor alloy self has enough antiwear properties on the one hand, has higher intensity and toughness on the other hand, can resist the significant shear power that bear at the impulsive force that causes because of loading suddenly and tooth root position.
The utility model parent surface integral coating has deposited metal, and deposited metal is combined by transition zone and surface wear-resistant layer two parts, when guaranteeing high antiwear property, improves interface binding power, avoids producing obscission.The constituent of said transition zone alloy material and mass content are: C 0.1～0.6%, Cr 10～25%, Mn 5～22%, Ni 0.5～9.0%, and V 0.2～1.2%, Mo 0.3～1.5%, surplus is Fe; Transition zone deposited metal tissue is the main body mutually with austenite, postwelding air cooling hardness HRC22～35.
Contain more austenitizing forming element---Mn and Ni in the utility model buffer layer material, purpose is the institutional framework that acquisition is the main body mutually with austenite.Austenite structure flow harden index on the one hand is high, and itself just has stronger antiwear property under thump or condition of high ground stress; On the other hand; The austenite structure Stability Analysis of Structures, tissue is difficult for changing when continuing the welding wearing layer on its surface, can avoid the generation of interlayer structural stress; Therefore can connect mother metal and wearing layer securely, guarantee that wearing layer does not produce obscission in working order down.
The constituent and the mass content of the said surface wear-resistant layer alloy material of the utility model are: C 1.2～3.5%, Cr 11～32%, Si 0.3～1.5%, Mn 0.6～3.2%, Ni 0.4～6.0%, V 0.5～2.5%, Mo 0.5～3.4%, B 0.9～3.8 %, rare earth yttrium 0.02～0.12%, surplus is Fe.Postwelding air cooling hardness HRC58～64.
The cutting edge position of the utility model comb-tooth-type grinder hammerhead parent is provided with some wedge-shaped slots; Be covered with the deposited metal of forming by described transition zone and surface wear-resistant layer through overlaying method in the wedge-shaped slot; Counter blade oral area position is carried out wedge shape and is strengthened, and wherein transition region thickness is 2-4mm, and the remaining space of wedge-shaped slot is filled by surface wear-resistant layer; Constitute appearance even curface wearing layer, the surface abrasion resistance layer thickness is 3-8mm.Cutting edge position wedge shape overlay cladding can improve the whole wear-resistant ability of broach.At first, wedge shape object anti-pressure ability is strong, can be by powerful operating pressure institute conquassation.Secondly, the wedge shape overlay cladding is a support with parent around it, and parent plays clamping and protective effect to overlay cladding; And the existence of wedge shape overlay cladding is equivalent to construct wear-resistant skeleton barrier in advance on the parent surface, is not worn with macroscopical shadow effect protection parent conversely.
The said transition region thickness of the utility model is 2-4mm, and the surface abrasion resistance layer thickness is 3-8mm.
Below in conjunction with embodiment and accompanying drawing the utility model is done further to describe.
Embodiment 1: a kind of comb-tooth-type grinder hammerhead, process the bimetal wear resistant parts through technique for overlaying.Fig. 1 is the assembling sketch map of this comb-tooth-type grinder hammerhead.Fig. 2 is that the A-A of tup among Fig. 1 is to schematic cross-section.Fig. 3 is that the B-B of tup among Fig. 1 is to schematic cross-section.
This comb-tooth-type grinder hammerhead parent 1 adopts cast alloy steel, and concrete component content is: C 0.25～0.42%, Cr 0.6～6%, Si 0.8～1.8%, Mn 0.5～2.8%, Nb 0.3～1.2, surplus is Fe.Get final heat treatment hardness HRC28～38.This precursor alloy can be resisted because of loading suddenly the significant shear power that bear at the impulsive force that causes and tooth root position.Parent surface integral coating has deposited metal 2, and deposited metal 2 is combined by transition zone and surface wear-resistant layer two parts.Transition zone deposited metal tissue is the main body mutually with austenite, postwelding air cooling hardness HRC22～35.The said transition region thickness of the utility model is 2-4mm, and the surface abrasion resistance layer thickness is 3-8mm.
Can find out that from Fig. 2, Fig. 3 the cutting edge position of the utility model comb-tooth-type grinder hammerhead parent 1 is provided with some wedge-shaped slots 3, reserve wedge-shaped slot 3 according to crown shaped design casting parent and at the cutting edge position.Described cutting edge position is that crown is met charge level and crown top.Be covered with the deposited metal of forming by described transition zone and surface wear-resistant layer 2 through overlaying method in the wedge-shaped slot 3; Counter blade oral area position is carried out wedge shape and is strengthened; Wherein transition region thickness is 2-4mm; Wedge-shaped slot 3 remaining spaces are filled by surface wear-resistant layer, constitute appearance even curface wearing layer, and the surface abrasion resistance layer thickness is 3-8mm.
Can reach 4-6 month the service life of this comb-tooth-type grinder hammerhead tup.
Embodiment 2: a kind of comb-tooth-type grinder hammerhead, process the bimetal wear resistant parts through technique for overlaying.Fig. 4 is the assembling sketch map of this comb-tooth-type grinder hammerhead.Fig. 5 is the schematic cross-section of tup among Fig. 4.
This comb-tooth-type grinder hammerhead parent 1 adopts cast alloy steel, and parent surface integral coating has deposited metal 2, and deposited metal 2 is combined by transition zone and surface wear-resistant layer two parts.The said transition region thickness of the utility model is 2-4mm, and the surface abrasion resistance layer thickness is 3-8mm.
As can be seen from Figure 5, the cutting edge position of the utility model comb-tooth-type grinder hammerhead parent 1 is provided with some wedge-shaped slots 3, reserves wedge-shaped slot 3 according to crown shaped design casting parent and at the cutting edge position.Described cutting edge position is the crown top.Be covered with the deposited metal of forming by described transition zone and surface wear-resistant layer 2 through overlaying method in the wedge-shaped slot 3; Counter blade oral area position is carried out wedge shape and is strengthened; Wherein transition region thickness is 2-4mm; Wedge-shaped slot 3 remaining spaces are filled by surface wear-resistant layer, constitute appearance even curface wearing layer, and the surface abrasion resistance layer thickness is 3-8mm.Be 4-6 month the service life of this tup.
Claims (2)
1. comb-tooth-type grinder hammerhead, its parent adopts cast alloy steel, and parent surface integral coating has deposited metal; Deposited metal is combined by transition zone and surface wear-resistant layer two parts; It is characterized in that: the cutting edge position of said parent is provided with some wedge-shaped slots, and built-up welding is covered with the deposited metal of being made up of described transition zone and surface wear-resistant layer in the wedge-shaped slot, and wherein transition region thickness is 2-4mm; The remaining space of wedge-shaped slot is filled by surface wear-resistant layer, constitutes appearance even curface wearing layer.
2. comb-tooth-type grinder hammerhead according to claim 1 is characterized in that: said transition region thickness is 2-4mm, and the surface abrasion resistance layer thickness is 3-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205246122U CN202377043U (en) | 2011-12-15 | 2011-12-15 | Comb-tooth type hammer of crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205246122U CN202377043U (en) | 2011-12-15 | 2011-12-15 | Comb-tooth type hammer of crusher |
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| Publication Number | Publication Date |
|---|---|
| CN202377043U true CN202377043U (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205246122U Expired - Lifetime CN202377043U (en) | 2011-12-15 | 2011-12-15 | Comb-tooth type hammer of crusher |
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| CN (1) | CN202377043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041893A (en) * | 2013-01-18 | 2013-04-17 | 贵州成智重工科技有限公司 | Plate hammer of impact crusher |
-
2011
- 2011-12-15 CN CN2011205246122U patent/CN202377043U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041893A (en) * | 2013-01-18 | 2013-04-17 | 贵州成智重工科技有限公司 | Plate hammer of impact crusher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANDUN WELDING MATERIAL ENGINEERING CO., LTD., WEI Free format text: FORMER OWNER: YU FENGFU Effective date: 20140324 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 264211 WEIHAI, SHANDONG PROVINCE TO: 264209 WEIHAI, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140324 Address after: 264209 Shandong province Weihai city Shenyang high tech District Road No. 108 building room 207 innovation Patentee after: Weihai Sandun Welding Materials Engineering Co., Ltd. Address before: 264211 room 6-401, Qingqing Town, hi tech District, Weihai, Shandong Patentee before: Yu Fengfu |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |