CN204220212U - A kind of ladder type head wearing piece for hammer head of hammer crusher - Google Patents
A kind of ladder type head wearing piece for hammer head of hammer crusher Download PDFInfo
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- CN204220212U CN204220212U CN201420628473.1U CN201420628473U CN204220212U CN 204220212 U CN204220212 U CN 204220212U CN 201420628473 U CN201420628473 U CN 201420628473U CN 204220212 U CN204220212 U CN 204220212U
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- hammer
- ladder type
- wearing piece
- head
- type head
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Abstract
The utility model relates to a kind of ladder type head wearing piece for hammer head of hammer crusher, comprise body, described body is rectangular structure, be ladder type head in the lower end of described body, the upper end of body arranges through dovetail groove, the left and right sides of body arranges groove, and the side of described ladder type head is provided with plush copper.The ladder type head wearing piece that the utility model provides makes that hammer head of hammer crusher is wear-resisting, long service life, prevents wearing piece from coming off from tup simultaneously.
Description
Technical field
The utility model relates to a kind of ladder type head wearing piece for hammer head of hammer crusher.
Background technology
The principle of hammer head breaker is that the material utilizing the tup of High Rotation Speed and eminence to fall bumps against material fragmentation.Tup is the main grinding component of hammer mill, and it has larger speed and inertia force in the course of the work.Therefore require that the material manufacturing tup not only should possess enough impact resistances, excellent wearability, and fracture must be prevented.The tup of current use adopts potassium steel to make.The potassium steel of as-cast structure is very crisp, and show as wearability lower, service life is shorter.
Chinese patent CN101773864A discloses a kind of durable hammer of crusher, and this tup is formed to sell by pin-and-hole and hammer handle to be connected, although change conveniently, but easily loosen in the tup course of work, tup easily comes off.In addition, the Double-metal composite hammer had been reported, hammer handle adopts medium and low carbon steel, tup wearing part is rich chromium cast iron, carbon steel good toughness, non-frangibility can be given full play to, the advantage that rich chromium cast iron hardness is high, wearability is good, but the danger having that rich chromium cast iron easily occurs to come off along faying face, jeopardize device security.Bargh is 1-2 days the potassium steel tup replacement cycle, and the replacement cycle is short, and replacing tup affects very large on production cost and the performance of enterprises.
Utility model content
The purpose of this utility model is to provide a kind of ladder type head wearing piece of tup of wear-resisting, slip-off preventing, uses it for hammer head of hammer crusher, can solve the problem that in prior art, hammer head of hammer crusher easily comes off, the replacement cycle is short.
The technical solution of the utility model is, a kind of ladder type head wearing piece for hammer head of hammer crusher is provided, comprise body, described body is rectangular structure, it is characterized in that: be ladder type head in the lower end of described body, the upper end of body arranges through dovetail groove, and the left and right sides of body arranges groove, and the side of described ladder type head is provided with plush copper.
Further, the bottom land of described groove is arc surface.
Further, the groove on the left of body relative to the groove on right side for being symmetrical arranged.
In the process of the broken material of reality, impacted mutually by the tup of broken material with High Rotation Speed, as during with forward impact, its impulsive force is all converted into the compression to the flat side of a hammer, tup metal surface is made to produce plastic deformation and micro-crack, Crack Extension in repeated multiple times flow situation, metal be squeezed formed fragment come off, cause impact wear, when impulsive force is large, tup surface can produce work hardening, and hardness is comparatively large, and hardened layer is darker.As impacted with certain impact angle, then impulsive force be decomposed into perpendicular to the flat side of a hammer normal stress and be parallel to the tangential stress of the flat side of a hammer, tup coating metal is produced to micro-cutting, washes away, makes honing, formation cuts groove.
The utility model adopts potassium steel tup to combine with hard alloy wear resistant parts, and casting process makes potassium steel tup and hard alloy wear resistant parts form metallurgical binding.Wearing piece bottom surface and ladder type head are groundwork face, and ladder type head contacts with material and realizes broken and wear-resisting effect, and tup ladder type head inclined design can comply with the angle that tup clashes into, and the normal pressure that tup is applied to when rotating on material maximizes.In addition, in wearing piece wear process, ladder type head can remain the effect to the stronger shearing force of material.Ladder type head is when rotating with tup, and the wearing and tearing that lower end, side is subject to are the most severe, therefore, designs a plush copper in the side of ladder type head, can extend the life-span of tup to a certain extent.Groove and the dovetail groove of circular arc type is designed respectively in the left and right side of wearing piece body and upper end, can make to combine firmly between wearing piece and tup, prevent wearing piece from coming off from tup, for reducing wearing piece because of stressed generation moment of torsion, make groove and dovetail groove all be symmetry relative to face in body as far as possible.In addition, for making wearing piece shaping and be convenient in demoulding in actual production, the chamfering of certain radian is provided with at edge.
Technique effect of the present utility model: the design of ladder type plush copper, dovetail groove and groove makes the combination of tup and wearing piece more firm, fragmentation is also promoted greatly, solves in tup use procedure and need the frequent problem changed.The service time of the ladder type head wearing piece tup that the utility model provides is 20-30 times of common potassium steel tup, and preparation cost improve only 30%, greatly increases the economic benefit of enterprise.
Accompanying drawing explanation
Fig. 1 is the stereogram of the ladder type head wearing piece that the utility model provides.
Fig. 2 is the end view drawing of the ladder type head wearing piece that the utility model provides.
Fig. 3 is the installation diagram of wearing piece in hammer head of hammer crusher.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-3, further illustrate the ladder type head wearing piece for hammer head of hammer crusher that this detailed description of the invention provides, the tup that the present embodiment uses is Mn13Cr2 high manganese steel material, and wearing piece is TM52 Hardmetal materials.As shown in Figure 1 and Figure 2, body 1 is set to rectangular structure, in the lower end of described body 1, ladder type head 2 is set, the upper end of body 1 arranges through dovetail groove 3, the left and right sides of body 1 arranges symmetrical circular arc type groove 4, it is the installation site of wearing piece in hammer head of hammer crusher that the side of described ladder type head 2 is provided with shown in plush copper 5, Fig. 3.
The body of the ladder type head wearing piece that this detailed description of the invention obtains is rectangular structure, and external dimensions is 74 mm × 30, mm × 60 mm; The quantity side of groove 3 is 6, and opposite side is 7, and design is because relevant position, quantity side is provided with plush copper 5 like this; The thickness of bathrocephaly 2 is 10 mm; Whole wearing piece heavily about 0.82 kg.
Be combined with the tup of potassium steel by above-mentioned obtained wearing piece with casting process, the both sides of tup lower end are equipped with three wearing pieces respectively.Obtained tup is used for hammer mill, found that wearing piece is combined closely with tup, do not come off, crushing efficiency improves 27%, is about 29 days service life.
Claims (3)
1. the ladder type head wearing piece for hammer head of hammer crusher, comprise body (1), described body (1) is rectangular structure, it is characterized in that: be ladder type head (2) in the lower end of described body (1), the upper end of body (1) arranges through dovetail groove (3), the left and right sides of body (1) arranges groove (4), and the side of described ladder type head (2) is provided with plush copper (5).
2. wearing piece as claimed in claim 1, is characterized in that: the bottom land of described groove (4) is arc surface.
3. wearing piece as claimed in claim 1, is characterized in that: the groove (4) in body (1) left side relative to the groove (4) on right side for being symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628473.1U CN204220212U (en) | 2014-10-28 | 2014-10-28 | A kind of ladder type head wearing piece for hammer head of hammer crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628473.1U CN204220212U (en) | 2014-10-28 | 2014-10-28 | A kind of ladder type head wearing piece for hammer head of hammer crusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204220212U true CN204220212U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420628473.1U Active CN204220212U (en) | 2014-10-28 | 2014-10-28 | A kind of ladder type head wearing piece for hammer head of hammer crusher |
Country Status (1)
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| CN (1) | CN204220212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597874A (en) * | 2016-03-16 | 2016-05-25 | 四川江油新川矿山机械有限公司 | Double-cavity crusher for producing sand |
-
2014
- 2014-10-28 CN CN201420628473.1U patent/CN204220212U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597874A (en) * | 2016-03-16 | 2016-05-25 | 四川江油新川矿山机械有限公司 | Double-cavity crusher for producing sand |
| CN105597874B (en) * | 2016-03-16 | 2018-12-28 | 四川江油新川矿山机械有限公司 | A kind of double-cavity crushing machine for sand processed |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |