CN102418351A - Digging palm and manufacturing method thereof - Google Patents
Digging palm and manufacturing method thereof Download PDFInfo
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- CN102418351A CN102418351A CN2011102962750A CN201110296275A CN102418351A CN 102418351 A CN102418351 A CN 102418351A CN 2011102962750 A CN2011102962750 A CN 2011102962750A CN 201110296275 A CN201110296275 A CN 201110296275A CN 102418351 A CN102418351 A CN 102418351A
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- wearing layer
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Abstract
The invention discloses a digging palm and a manufacturing method thereof. The digging palm comprises a bracket and a wear-resistant layer, wherein the bracket comprises a support part and a work part which are connected; the work part comprises a soil meeting surface, a top surface inserted with the lower edge of the soil meeting surface, and lateral surfaces interested with lateral edges of the soil meeting surface; and the wear-resistant layer comprises a soil meeting surface wear-resistant layer attached to the soil meeting surface, and a top surface wear-resistant layer attached to the top surface. Compared with the prior art, the digging palm and the manufacturing method thereof have the advantages that: the top surface wear-resistant layer is attached to the top surface of the bracket to enhance the top surface of the bracket, so the wear resistance of the top surface of the bracket can be improved, and the service life of the digging palm is prolonged; the wear-resistant layers are fused and coated on the soil meeting surface and the top surface of the work part of the bracket to realize metallurgical bonding of the bracket and the wear-resistant layers, so the wear-resistant layers hardly fall off, and the wear resistance of the wear-resistant layers is improved; moreover, cutting and welding procedures for alloy blocks in the prior art are eliminated, and a production process is simplified.
Description
Technical field
The present invention relates to roadbed and handle the driving skills art, especially relate to a kind of palm and manufacturing approach thereof of taking off.
Background technology
It is that the rail track that effectively improves the roadbed supporting capacity is safeguarded special equipment that roadbed is handled car.Roadbed is handled the roadbed digger chain of car and is responsible for excavating the soil layer of roadbed bottom, is the core component of roadbed digger chain and take off the palm, and the course of work is born the sharp wear of the grains of sand in the roadbed soil layer, easy abrasion loss or damage.And frequent change is taken off the palm, can reduce roadbed and handle the operating efficiency of car, increases the working service cost, therefore is badly in need of strengthening taking off the palm, improves the abrasion resistance and the working life of taking off the palm.
As illustrated in fig. 1 and 2; The existing palm of taking off comprises support 1a and alloy block 2a; Alloy block 2a comprises overlay cladding 21a and matrix 22a, specifically adopts rich chromium cast iron welding rod and bead-welding technology on the matrix 22a of flat board, to process overlay cladding 21a, cuts into the alloy block 2a of certain size then; Alloy block 2a and support 1a weld, and form weld seam 23a.
In carrying out research process of the present invention, the inventor finds to adopt the above-mentioned existing palm of taking off to have following technological deficiency:
The first, overlay cladding 21a adopts bead-welding technology to process, because the input of the heat of bead-welding technology is big; Cooling and process of setting stress are bigger; Cause overlay cladding 21a be prone to produce transverse cracks at the combination interface place, and then cause overlay cladding 21a to peel off easily, the application life of taking off the palm is lower, maintenance cost is high.
And overlay cladding 21a only is welded on the Tu Mianshang that meets of support 1, can't implement to strengthen to the end face of support 1a and side, and the wearing and tearing of exactly taking off the palm start from end face, thereby this abrasion resistance of taking off the palm is relatively poor, and application life is lower.
The second, overlay cladding 21a is organized as rich chromium cast iron in the prior art, and abrasion resistance is not enough, and thick coating increases technology difficulty and cost of production; And adopt the split welding procedure of alloy block 2a and support 1a, increased the cutting of alloy block 2a and the operation of welding, increased cost of production equally.
Summary of the invention
The present invention provides a kind of palm and manufacturing approach thereof of taking off, and in order to solve lower defective in application life of taking off the palm of the prior art, can improve the application life of taking off the palm, and can reduce processing technology difficulty, cost of production and the working service cost of taking off the palm.
The invention provides a kind of palm of taking off, comprise support and wearing layer;
Said support comprises support portion and operate portions; Said support portion is connected with said operate portions; Said operate portions comprise meet native face, with meet the end face that intersects native face lower edge and with meet native face side along the side of intersecting, said wearing layer comprises and is attached to said native face wearing layer of meeting of native face and end face and the end face wearing layer of meeting.
Preferably, said wearing layer also comprises the side wearing layer that is attached to said side.
Preferably, said side wearing layer is two, intersects with said two sides edges of meeting native face wearing layer and bottom surface wearing layer respectively.
It is preferably, said that to meet native face wearing layer vertical with said end face wearing layer; Said side wearing layer is with said to meet native face wearing layer vertical.
Preferably, said wearing layer material is that metal-base particles strengthens wearing layer.
Preferably, the end away from said operate portions of said support portion has groove, and the openend of said groove offers concentric installing hole.
The present invention also provides a kind of manufacturing approach of taking off the palm, comprising:
Casting or forging support;
Meet native face and end face cladding wearing layer in the operate portions of said support.
Preferably, also comprise:
Side cladding wearing layer in the operate portions of said support;
Preferably, the detailed process of said cladding wearing layer is added alloy material to said operate portions simultaneously for being the operate portions through the said support of laser beam irradiation;
Realize the wearing layer of metallurgical binding through multiple tracks cladding layer overlap joint.
Preferably, the overlap joint road number of said cladding layer is the 20-30 road, and the said cladding layer width of per pass is 4-6mm, highly is 2-4mm, the overlapping rate 30%～50% of said cladding layer.
Preferably, said alloy material is that metal-base particles strengthens high-abrasive material; It is carbide particle that said metal-base particles strengthens the high-abrasive material wild phase, synthetic by two or more elements and carbon in titanium, vanadium, zirconium, niobium or the W elements.
The palm and the manufacturing approach thereof of taking off provided by the invention taken off the palm and comprised that support and wearing layer, wearing layer comprise and be attached to native face wearing layer of meeting of support and end face wearing layer; Compared with prior art; Owing on the end face of support, be attached with the end face wearing layer, the end face of support is strengthened, can improve the abrasion resistance of the end face of support; Improve the hold facility of top shape and cutting edge, improve the digging efficiency and the application life of taking off the palm.
Directly meet native face and end face cladding wearing layer owing to adopt said processing technology in the operate portions of support; Realize the metallurgical binding of support and wearing layer; Do not produce the transverse cracks that is parallel to work plane, make the wearing layer difficult drop-off, improve the abrasion resistance of wearing layer; And saved the cutting of alloy block and the operation of welding in the prior art, simplified production technology.
Description of drawings
Fig. 1 is the existing front view of taking off the palm of the present invention;
Fig. 2 is the left view of taking off the palm among Fig. 1;
The sketch map of taking off the palm that Fig. 3 provides for first embodiment of the invention;
Fig. 4 is the sectional view along A-A line among Fig. 3;
Fig. 5 is the stereogram of taking off the palm among Fig. 3;
The working state figure of taking off the palm that Fig. 6 provides for first embodiment of the invention;
The flow chart of the manufacturing approach of taking off the palm that Fig. 7 provides for second embodiment of the invention.
Reference numeral:
The 1-support; The 11-support portion; The 12-operate portions;
The 111-groove; The 112-installing hole; The 2-wearing layer;
21-meets native face wearing layer; 22-end face wearing layer; 23-side wearing layer;
10-takes off the palm; The 20-linking arm; The 30-scraper plate;
40-roadbed soil layer.
The specific embodiment
For making the object of the invention, technical scheme and advantage clearer; To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention carried out clear, intactly description, obviously; Described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
With reference to Fig. 3-5, the sketch map of taking off the palm that Fig. 3 provides for first embodiment of the invention; Fig. 4 is the sectional view along A-A line among Fig. 3; Fig. 5 is the stereogram of taking off the palm among Fig. 3.
In the first embodiment of the present invention, take off the palm and comprise support 1 and wearing layer 2.
The end of support portion 11 has groove 111, and the openend of groove 111 offers concentric installing hole 112.
As shown in Figure 6; Present embodiment provides takes off the palm when in running order; Take off the groove 111 of the palm 10 support portion 11 and cooperates with protruding (not shown) on the linking arm 20, the bearing pin of straight pin or other types passes installing hole 112 and will take off and slap 10 and be connected with linking arm 20, and the other end of linking arm 20 is connected with the scraper plate 30 of roadbed processing car; The scraper plate 30 of roadbed processing car passes to power and takes off the palm 10; Take off the palm 10 operate portions 12 and go deep into roadbed soil layer 40, meet the sandstone CONTACT WITH FRICTION in native face wearing layer 21 and end face wearing layer 22 and the roadbed soil layer 40 on the operate portions 12, press direction of arrow excavation roadbed soil layer among Fig. 6.
First embodiment of the invention provides takes off the palm, and wearing layer 2 comprises and be attached to native face wearing layer 21 of meeting of native face of meeting of support 1 and end face and end face wearing layer 22, compared with prior art; Owing on the end face of support 1, be attached with end face wearing layer 22; End face to support 1 is strengthened, and can improve the abrasion resistance of support 1 end face, improves the hold facility of cutting edge; Reduce wearing and tearing, improve the digging efficiency and the application life of taking off the palm.
Need to prove, can also do following improvement the palm of taking off that first embodiment provides:
Like Fig. 3 and shown in Figure 5, wearing layer 2 also comprises the side wearing layer 23 of the side that is attached to operate portions 12.Set up the abrasion resistance that side wearing layer 23 can improve the side of operate portions 12 in the side of operate portions 12, and then can improve the application life of taking off the palm.
Particularly, the side wearing layer 23 of operate portions 12 is two, intersects with two sides edges of meeting native face wearing layer 21 respectively.It is vertical with end face wearing layer 22 to meet native face wearing layer 21; Can improve the mining ability of taking off the palm; Meet native face and the end face of operate portions 12 can out of plumb, and the external surface of native face wearing layer 21 and end face wearing layer 22 is vertical can improve the mining ability of taking off the palm as long as guarantee to meet; Two side wearing layers 23 can reduce the wearing and tearing of side wearing layer 23 with to meet native face wearing layer 21 vertical, improve the application life of taking off the palm.
With reference to figure 7, the flow chart of the manufacturing approach of taking off the palm that Fig. 7 provides for second embodiment of the invention.The manufacturing approach of taking off the palm that second embodiment of the invention provides comprises:
Step 100, casting or forging support;
Step 200 is met native face and end face cladding wearing layer in the operate portions of support.
In addition, on the basis of above-mentioned manufacturing approach of taking off the palm, further, the manufacturing approach of taking off the palm also is included in the side cladding wearing layer of the operate portions of support.
Further, said cladding wearing layer is the operate portions through the high energy laser beam irradiation stand, adds alloy material to operate portions simultaneously; Realize the wearing layer of metallurgical binding through multiple tracks cladding layer overlap joint.
Particularly, the overlap joint road number of cladding layer is the 20-30 road, and per pass cladding layer width is 4-6mm, highly is 2-4mm, the overlapping rate 30%～50% of cladding layer.
In the above-described embodiments, alloy material is that metal-base particles strengthens high-abrasive material; Particle is synthesized by titanium, vanadium, zirconium, niobium, W elements in the strong carbide forming element, specifically can select two or more elements and carbon in titanium, zirconium, vanadium, niobium, the tungsten synthetic.
Strengthen in the high-abrasive material at metal-base particles, particle size is the 0.5-2 micron, is uniformly distributed on the hypoeutectic matrix.Distribution of particles density reaches 10
5Individual/mm
2Pellet hardness is high, and bond strength is good, can effectively resist the micro cutting of external abrasive particle, and abrasion resistance is good.Through the wearing layer that laser melting and coating process processing multi-track overlapping forms, wearing layer and support are metallurgical binding, and bond strength is high, and abrasion resistance is good.
Need to prove that in the foregoing description, wearing layer can also adopt other hardening by cladding.
Support can adopt hot investment casting or Forging Technology processing, and the material of support can be selected alloy steel, like 42CrMo, 35SiCrMo etc.
The manufacturing approach of taking off the palm that present embodiment provides owing on the end face of support, be attached with the end face wearing layer, is strengthened the end face of support; Improve the hold facility of cutting edge; Reduce wearing and tearing, can improve the abrasion resistance of the end face of support, improve the application life of taking off the palm.
Owing to directly meet native face and end face cladding wearing layer in the operate portions of support; Realize the metallurgical binding of support and wearing layer, make the wearing layer difficult drop-off, the abrasion resistance of raising wearing layer; And saved the cutting of alloy block and the operation of welding in the prior art, simplified production technology.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (11)
1. take off the palm for one kind, it is characterized in that, comprise support and wearing layer;
Said support comprises support portion and operate portions, and said support portion is connected with said operate portions;
Said operate portions comprise meet native face, with meet the end face that intersects native face lower edge and with meet native face side along the side of intersecting;
Said wearing layer comprises and is attached to said native face wearing layer of meeting of native face and end face and the end face wearing layer of meeting.
2. the palm of taking off according to claim 1 is characterized in that said wearing layer also comprises the side wearing layer that is attached to said side.
3. the palm of taking off according to claim 1 and 2 is characterized in that said side wearing layer is two, intersects with said two sides edges of meeting native face wearing layer and bottom surface wearing layer respectively.
4. the palm of taking off according to claim 2 is characterized in that, said to meet native face wearing layer vertical with said end face wearing layer; Said side wearing layer is with said to meet native face wearing layer vertical.
5. the palm of taking off according to claim 1 and 2 is characterized in that, said wearing layer is that metal-base particles strengthens wearing layer.
6. the palm of taking off according to claim 1 and 2 is characterized in that, the end away from said operate portions of said support portion has groove, and the openend of said groove offers concentric installing hole.
7. each described manufacturing approach of taking off the palm of claim 1-6 is characterized in that, comprising:
Casting or forging support;
Meet native face and end face cladding wearing layer in the operate portions of said support.
8. manufacturing approach of taking off the palm according to claim 7 is characterized in that, also comprises:
Side cladding wearing layer in the operate portions of said support;
9. according to claim 7 or 8 described manufacturing approaches of taking off the palm, it is characterized in that,
The detailed process of said cladding wearing layer is the operate portions through the said support of laser beam irradiation, adds alloy material to said operate portions simultaneously;
Realize the wearing layer of metallurgical binding through multiple tracks cladding layer overlap joint.
10. manufacturing approach of taking off the palm according to claim 9 is characterized in that, the overlap joint road number of said cladding layer is the 20-30 road, and the said cladding layer width of per pass is 4-6mm, highly is 2-4mm, the overlapping rate 30%～50% of said cladding layer.
11. manufacturing approach of taking off the palm according to claim 9 is characterized in that, said alloy material is that metal-base particles strengthens high-abrasive material; Particle is a wild phase, and is synthetic by two or more elements and carbon in titanium, vanadium, zirconium, niobium or the W elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102962750A CN102418351A (en) | 2011-09-27 | 2011-09-27 | Digging palm and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102962750A CN102418351A (en) | 2011-09-27 | 2011-09-27 | Digging palm and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102418351A true CN102418351A (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102962750A Pending CN102418351A (en) | 2011-09-27 | 2011-09-27 | Digging palm and manufacturing method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2375673Y (en) * | 1999-05-20 | 2000-04-26 | 王志文 | Wear-resisting bulldozer blade |
| CN2616574Y (en) * | 2002-06-27 | 2004-05-19 | 王志文 | Wear-resistant dipper tooth |
| CN101994115A (en) * | 2009-08-24 | 2011-03-30 | 沈阳大陆激光成套设备有限公司 | Process for laser cladding for abrasion-resistant and etch-resistant coating of water turbine set bottom ring |
| CN202347548U (en) * | 2011-09-27 | 2012-07-25 | 北京二七轨道交通装备有限责任公司 | Raking palm |
-
2011
- 2011-09-27 CN CN2011102962750A patent/CN102418351A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2375673Y (en) * | 1999-05-20 | 2000-04-26 | 王志文 | Wear-resisting bulldozer blade |
| CN2616574Y (en) * | 2002-06-27 | 2004-05-19 | 王志文 | Wear-resistant dipper tooth |
| CN101994115A (en) * | 2009-08-24 | 2011-03-30 | 沈阳大陆激光成套设备有限公司 | Process for laser cladding for abrasion-resistant and etch-resistant coating of water turbine set bottom ring |
| CN202347548U (en) * | 2011-09-27 | 2012-07-25 | 北京二七轨道交通装备有限责任公司 | Raking palm |
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Application publication date: 20120418 |