CN203018128U - Counterattack hammer crusher - Google Patents
Counterattack hammer crusher Download PDFInfo
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- CN203018128U CN203018128U CN2012206018217U CN201220601821U CN203018128U CN 203018128 U CN203018128 U CN 203018128U CN 2012206018217 U CN2012206018217 U CN 2012206018217U CN 201220601821 U CN201220601821 U CN 201220601821U CN 203018128 U CN203018128 U CN 203018128U
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- side plate
- connecting hole
- hammer type
- type disintegrator
- counter beating
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Abstract
The utility model discloses a counterattack hammer crusher. The counterattack hammer crusher comprises a housing (1) and a transmission shaft (2) passing through two first side walls of the housing (1), wherein a hammer part capable of rotating together with the transmission shaft (2) is arranged on the part of the transmission shaft (2) in the housing (1) and comprises a hammer head (3); the inner surface of the first side wall is provided with a side plate (4); and the side plate (4) is arranged on the inner surface of the first side wall and corresponds to the motion trail of the hammer head (3). According to the counterattack hammer crusher, the side plate is arranged only on the inner surface of the first side wall and corresponds to the motion trail of the hammer head, so that the production cost is reduced, and the side plate can be assembled or disassembled conveniently.
Description
Technical field
The utility model relates to mechanical field, particularly, relates to a kind of counter beating hammer type disintegrator.
Background technology
Along with the development of production technology and mechanical performance etc., also more and more higher to the requirement of material wear ability.For example, during titanium slag electric furnace is smelted, after the high-temp liquid titanium slag is come out of the stove, requirement due to product quality and production technology, must take to force water spray cooling, but, after forcing water spray cooling, it is very hard that the titanium slag solidification and crystallization become, and central iron shot or the abrasive grit of also being mixed with, form the granularity that the titanium slag finished product also needs the titanium slag of solidification and crystallization is crushed to regulation.The fragmentation of titanium slag can adopt counter beating hammer type disintegrator to carry out, and this equipment has the advantages such as power consumption is low, production efficiency is high, noise is little, in industries such as metallurgy, coal, cement, all is widely used.
As shown in Figure 1, the power transmission shaft 2 that trans hammer mill generally includes casing 1 and arranges through this casing 1, casing 1 is transmitted two the first side walls that axle 2 passes and is oppositely arranged, be coated with the side plate 4 of a monoblock on the whole inner surface of these two the first side walls, and be provided with tooth plate 8 on the inner surface of the second sidewall of the connection the first side wall of casing 1; Be provided with hammer section in casing 1, hammer section comprises tup 3 and hammer handle, one end of hammer handle is connected with tup 3, the other end is connected on power transmission shaft 2, by actuating unit, drives power transmission shaft 2 rotations, thus make tup 3 around power transmission shaft 2 in the interior rotation of casing 1, and, usually, be connected with a plurality of hammer section around the circumferential compartment of terrain of power transmission shaft 2, hammer handle length and the tup size of these hammer sections can equate.When disintegrating machine is worked, under the drive of actuating unit, hammer section High Rotation Speed, when material from the charging aperture that is positioned at the casing top enters casing 1, through tup 3, clash into broken, thereby broken material obtains the kinetic energy high speed impact to again broken side plate 4 and tooth plate 8 from 3 ones of tups, and material mutually clashes into repeatedly brokenly in this process, and the material that finally reaches granularity requirements is discharged from the discharge gate that is positioned at bottom of shell.In the shattering process of material, mainly between tup 3, side plate 4 and tooth plate 8, clash into, therefore, tup 3, side plate 4 and tooth plate 8 serious wear.
Mainly there is following point in existing counter beating hammer type disintegrator for the hard materials such as titanium slag material broken the time: existing tup 3 and tooth plate 8 are high-chromium cast iron pieces, and its metallographic structure is the carbide Cr of chromium that distributing on martensite (HV500-1000) matrix
7c
3(HV1300-1800), Cr
7c
3being the shaft-like or lath-shaped of hexagon distributes, can cause martensitic matrix to be isolated, for the broken hard material as titanium slag the time, due to the carbide of martensitic matrix hardness lower than chromium, thereby, martensitic matrix first weares and teares, make the carbide of chromium show especially out, and then scratched by iron shot and hard titanium slag, smash and come off, lose the protective effect to martensitic matrix, make martensitic matrix further be worn and torn, so move in circles down, therefore, in fragmentation during hard material, the hardness of existing high-chromium cast iron piece and toughness shortcoming, easily wearing and tearing, in addition, existing side plate 4 is made by the 16Mn steel plate, because low-carbon Mn steel hardness is low, therefore, formed groove by hard material wearing and tearing very soon even worn out, need often to change tup 3, tooth plate 8 and side plate 4, delay production and increased cost.
In addition, in the shattering process of material, between the main position corresponding at the movement locus with tup 3 of tup 3, side plate 4 and tooth plate 8, clash into, therefore, side plate 4 only has the position serious wear corresponding with the movement locus of tup 3 and wear and tear hardly in all the other positions of side plate 4, therefore, the side plate 4 that the existing steel plate of the 16Mn by monoblock is made and covered on the inwall of the casing 1 that whole power transmission shaft 2 passes has not only caused waste, has increased the difficulty that manufacturing cost has also increased side plate 4 handling.
The utility model content
The purpose of this utility model is to provide a kind of counter beating hammer type disintegrator, and this counter beating hammer type disintegrator only is provided with side plate on the position corresponding with movement locus tup on the inner surface of the first side wall, reduces manufacturing cost and facilitates the handling of side plate.
To achieve these goals, the utility model provides a kind of counter beating hammer type disintegrator, this counter beating hammer type disintegrator comprises casing and passes the power transmission shaft of two the first side walls settings of this casing, on the part that is positioned at described casing of described power transmission shaft, being provided with can be with the hammer section of this power transmission shaft rotation, this hammer section comprises tup, be provided with side plate on the inner surface of described the first side wall, described side plate is arranged on the corresponding position of the movement locus with described tup on the inner surface of described the first side wall.
Preferably, described side plate comprises the polylith side plate daughter board be stitched together.
Preferably, on described side plate daughter board, be provided with the first connecting hole, be provided with the second connecting hole on described the first side wall, connector through described the first connecting hole and described the second connecting hole so that described side plate daughter board is connected on described the first side wall.
Preferably, described side plate forms annulus section shape.
Preferably, described side plate is divided into a plurality of described side plate daughter boards along the ring segment-shaped arcuate directions of described circle.
Preferably, described side plate daughter board is being respectively arranged with described the first connecting hole near the arc avris with near the outer arcuate avris, and the quantity of described first connecting hole of close arc avris is less than the quantity near described first connecting hole of outer arcuate avris.
Preferably, described side plate daughter board is provided with described first connecting hole in the centre near the arc avris, and is provided with respectively described first connecting hole at place, the two ends near the outer arcuate avris.
Preferably, described casing comprises on the inner surface of the second sidewall of connecting two described the first side walls and this second sidewall and is provided with tooth plate.
Preferably, the top of described casing is provided with charging aperture, and bottom is provided with discharge gate.
The utility model is improved by the structure to counter beating hammer type disintegrator, only on the position corresponding with movement locus tup on the inner surface of the first side wall, be provided with side plate, save the side plate materials and therefore reduced manufacturing cost, and because the side plate volume reduces thereby be convenient to the handling of side plate, and this side plate can be arranged to be spliced to form by polylith side plate daughter board, by connector, side plate is fixed on the inner surface of the first side wall, therefore further facilitates the handling of side plate.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
The accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms the part of specification, is used from explanation the utility model with the following specific embodiment one, but does not form restriction of the present utility model.In the accompanying drawings:
Fig. 1 overlooks the sectional structure schematic diagram according to the counter beating hammer type disintegrator of prior art;
Fig. 2 overlooks the sectional structure schematic diagram according to counter beating hammer type disintegrator of the present utility model;
Fig. 3 is the front view of the side plate in Fig. 2.
Description of reference numerals
1 casing 2 power transmission shaft 3 tups
4 side plate 5 side plate daughter board 8 tooth plates
9 first connecting holes
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
The utility model provides a kind of wear resistant cast iron part, the total amount of this wear resistant cast iron part of take is benchmark, the Ni of the V of the C that described wear resistant cast iron part contains the 2.2-2.6 % by weight, the Cr of 7.0-9.0 % by weight, 4.0-7.0 % by weight, the Mo of 2.0-4.0 % by weight, 0.4-0.8 % by weight, the Mn of 0.4-0.8 % by weight and the Si of 0.5-0.8 % by weight, surplus is Fe and inevitable impurity.
Wear resistant cast iron part of the present utility model is for the hardness of existing high-chromium abrasion-proof cast iron part and the defect of toughness deficiency, adjust the composition of wear resistant cast iron part, thereby the metallographic structure of wear resistant cast iron part is changed, improve hardness and the toughness of ironcasting, strengthen the wearability of ironcasting, particularly, hardness, toughness and the economic dispatch factor of comprehensive wearing piece, add appropriate vanadium and molybdenum with Substitute For Partial chromium.The vanadium added can the refinement rich chromium cast iron tissue, vanadium forms the carbide of vanadium in the metallographic structure of ironcasting, thereby the carbide of vanadium roughly forms spherical and highly dispersed and strengthen the toughness of rich chromium cast iron in matrix, and the carbide of vanadium has the hardness of about HV2600, thereby can effectively improve the hardness of ironcasting, but when the too high levels of vanadium, although the hardness of cast iron strengthens, but easily make to organize crisp hard, the phenomenon of piece appears falling, thereby the utility model is controlled the content of vanadium in the 4.0-7.0 % by weight.In addition, the molybdenum added can play the effect of the tissue of refinement rich chromium cast iron equally, the carbide of the molybdenum formed in ironcasting is roughly spherical and highly dispersed in matrix, and the carbide of molybdenum also has higher hardness (being approximately HV2000), and, molybdenum is more obvious for the improvement of the impact flexibility of ironcasting, and can also improve the through hardening performance of foundry goods, thereby, the content of vanadium and molybdenum is controlled to certain limit, so that have at ironcasting under the condition of better hardness, also there is toughness preferably, thereby strengthen the wearability of ironcasting.
As a kind of preferred embodiment, the total amount of described wear resistant cast iron part of take is benchmark, the Ni of the V of the C that described wear resistant cast iron part contains the 2.2-2.6 % by weight, the Cr of 7.0-9.0 % by weight, 4.5-5.5 % by weight, the Mo of 2.5-3.5 % by weight, 0.4-0.8 % by weight, the Mn of 0.4-0.8 % by weight and the Si of 0.5-0.8 % by weight, surplus is Fe and inevitable impurity.When the content of the composition of wear resistant cast iron part is controlled in above-mentioned scope, the toughness of ironcasting and hardness can be balanced better, thereby improve better the wearability of ironcasting.
And described inevitable impurity can comprise P, S and Als, the total amount of described wear resistant cast iron part of take is benchmark, and the content of P is the 0.001-0.035 % by weight, and the content of S is the 0.001-0.035 % by weight, and the content of Als is the 0.001-0.015 % by weight.
Comprise martensitic matrix and be distributed in the carbide of the chromium on this martensitic matrix, the carbide of vanadium and the carbide of molybdenum according to wear resistant cast iron part of the present utility model, the carbide that the carbide of described vanadium is VC, described molybdenum is Mo
2the carbide of C, described chromium is Cr
7c
3.Wherein, the hardness of martensitic matrix is HV500-1000, the hardness of the carbide of chromium is HV1300-1800, the hardness of the carbide of vanadium is approximately HV2600 and the hardness of the carbide of molybdenum is approximately HV2200, the carbide of chromium is the shaft-like or lath-shaped net distribution of hexagon in martensitic matrix, the carbide of vanadium and the carbide of molybdenum are roughly spherical and highly dispersed in martensitic matrix, because the carbide hardness of the carbide of vanadium and molybdenum is large and highly dispersed distributes, thereby can play a protective role to matrix etc., and, being roughly spherical and highly dispersed form makes the carbide of vanadium and the carbide of molybdenum be scratched by hard material, the possibility that smashes and come off is lower, further improve the wearability of ironcasting.
The utility model also provides a kind of preparation method of wear resistant cast iron part, the method comprises molten iron is cast as to the ironcasting of required form and this ironcasting is heat-treated, the total amount of described molten iron of take is benchmark, the Si of the Mn of the Ni of the Mo of the V of the Cr of the C that described molten iron contains the 2.2-2.6 % by weight, 7.0-9.0 % by weight, 4.0-7.0 % by weight, 2.0-4.0 % by weight, 0.4-0.8 % by weight, 0.4-0.8 % by weight and 0.5-0.8 % by weight, surplus is Fe and inevitable impurity.
Equally, preferably, the total amount of described molten iron of take is benchmark, the Si of the Mn of the Ni of the Mo of the V of the Cr of the C that described molten iron contains the 2.2-2.6 % by weight, 7.0-9.0 % by weight, 4.5-5.5 % by weight, 2.5-3.5 % by weight, 0.4-0.8 % by weight, 0.4-0.8 % by weight and 0.5-0.8 % by weight, surplus is Fe and inevitable impurity.
And described inevitable impurity comprises P, S and Als, the total amount of described molten iron of take is benchmark, and the content of described P is the 0.001-0.035 % by weight, and the content of described S is the 0.001-0.035 % by weight, and the content of described Als is the 0.001-0.015 % by weight.
When the matrix of wear resistant cast iron part all is martensite, its wearability is best, and therefore, adopting heat treated mode to make and forming is all martensitic matrix.As a kind of preferred embodiment, described heat treatment comprises the following steps: the air of take is quenched as hardening media, and the temperature of described quenching is 1000-1100 ℃, and the temperature retention time of described quenching is 3.5-4.5 hour; Then, carry out tempering under 600-700 ℃, the temperature retention time of described tempering is 1.5-2.5 hour.Select air can reduce the generation of crackle as hardening media,, can adopt air blast to be quenched to wear resistant cast iron part blow air herein.
In addition, the utility model also provides a kind of counter beating hammer type disintegrator, referring to Fig. 2, comprise casing 1 and pass the power transmission shaft 2 of two the first side walls settings of this casing 1 according to counter beating hammer type disintegrator of the present utility model, on the part that is positioned at casing 1 of power transmission shaft 2, being provided with can be with the hammer section of these power transmission shaft 2 rotations, this hammer section comprises tup 3, be provided with side plate 4 on the inner surface of the first side wall, side plate 4 is arranged on the corresponding position of the movement locus with tup 3 on the inner surface of the first side wall.
Counter beating hammer type disintegrator of the present utility model is structurally improved, only on the corresponding position of the movement locus with tup 3 on the inner surface of the first side wall, be provided with side plate 4, due to material when by this counter beating hammer type disintegrator, carrying out fragmentation substantially only at the movement locus with tup 3 corresponding position clash into, thereby side plate 4 of the present utility model not only meets the job requirement of counter beating hammer type disintegrator, side plate 4 materials have been saved simultaneously, thereby reduction manufacturing cost, and compared on the inner surface that covers whole the first side wall in prior art and all-in-one-piece side plate that power transmission shaft 2 passes, side plate 4 of the present utility model is more convenient for loading and unloading.
As a kind of preferred embodiment, side plate 4 comprises the polylith side plate daughter board 5 be stitched together.The form that side plate 4 is spliced to form by the side plate daughter board 5 of fritter can further facilitate the handling of side plate 4, and when certain a part of serious wear of side plate 4, only need the side plate daughter board 5 at this place, position is changed and got final product, thereby the maintenance cost of also having saved equipment, and, the side plate daughter board 5 of small volume not only can be by current material through being processed into, and the foundry goods that can also adopt direct casting to form, to facilitate manufacture.
Between side plate daughter board 5 and the first side wall, can adopt the mode of any appropriate to connect, for example, as a kind of selection, can be provided with the first connecting hole 9 on side plate daughter board 5, can be provided with the second connecting hole on the first side wall, connector through the first connecting hole 9 and the second connecting hole so that side plate daughter board 5 is connected on the first side wall.The form that adopts connector to connect can facilitate the charge and discharge operations of side plate daughter board 5, and to facilitate the replacing to side plate daughter board 5, wherein, connector can be bolt.
And, in the vertical disintegrating machine of the counterattack of present embodiment, as shown in Figure 2, be connected with a plurality of hammer section around the circumferential compartment of terrain of power transmission shaft 2 in casing 1, this hammer section comprises tup 3 and hammer handle, one end of hammer handle is connected with tup 3, the other end is connected on power transmission shaft 2, drive power transmission shaft 2 by actuating unit and rotate, thereby make tup 3 around power transmission shaft 2 in the interior rotation of casing 1, the hammer handle length of these hammer sections and tup equal and opposite in direction, thereby the movement locus of tup 3 is annulus section shape.Therefore, side plate 4 forms annulus section shape, corresponding with the movement locus with tup 3.
Particularly, side plate 4 is divided into a plurality of side plate daughter boards 5 along the ring segment-shaped arcuate directions of described circle.And, because the length on the arc limit of side plate daughter board 5 is less than the length on outer arcuate limit, therefore, side plate daughter board 5 is being respectively arranged with the first connecting hole 9 near the arc avris with near the outer arcuate avris, and the quantity of the first connecting hole 9 of close arc avris is less than the quantity near the first connecting hole 9 of outer arcuate avris.
The quantity of the first connecting hole 9 on each side plate daughter board 5 is that volume, weight and the connector intensity etc. according to side plate daughter board 5 are determined, for example, as a kind of embodiment, as Fig. 3, side plate daughter board 5 is provided with first connecting hole 9 in the centre near the arc avris, and is provided with respectively first connecting hole 9 at place, the two ends near the outer arcuate avris.This fastness that can strengthen 5 installations of side plate daughter board by triangular shaped the first connecting hole 9 of arranging.
In addition, casing 1 also comprises the second sidewall that connects two the first side walls, and is provided with tooth plate 8 on the inner surface of this second sidewall.When using this counter beating hammer type disintegrator broken material, material clashes into and is broken between tup 3, side plate 4 and tooth plate 8.
As a kind of preferred embodiment, side plate 4, tup 3 and tooth plate 8 are according to wear resistant cast iron part of the present utility model.
Wear and tear in the course of the work the most serious tup, tooth plate and side plate of counter beating hammer type disintegrator of the present utility model all adopts wear resistant cast iron part of the present utility model, make the wearability at these positions greatly improve, make this counter beating hammer type disintegrator be more suitable for broken harder material, for example, fragmentation for titanium slag, thereby this counter beating hammer type disintegrator can the harder material of long period fragmentation and without above-mentioned easy-abrasion part is changed, extended the service life of this counter beating hammer type disintegrator, effectively guarantee that the continuity of producing also reduces costs.
And, as a kind of embodiment, the top of casing 1 is provided with charging aperture, bottom is provided with discharge gate.
Counter beating hammer type disintegrator of the present utility model only is provided with side plate 4 on the corresponding position of the movement locus with tup 3 on the inner surface of the first side wall, save side plate 4 materials and therefore reduced manufacturing cost, and because side plate 4 volumes reduce thereby be convenient to the charge and discharge operations of side plate 4, and side plate 4 is arranged to be spliced to form by polylith side plate daughter board 5, and by connector, be fixed on the inner surface of the first side wall respectively, therefore further facilitate the charge and discharge operations of side plate 4.
Further elaborate the utility model below in conjunction with embodiment and Comparative Examples.
Embodiment and Comparative Examples
The present embodiment and Comparative Examples are for illustrating wear resistant cast iron part that the utility model provides and preparation method thereof.
Use has tup, side plate and the tooth plate of the molten iron of the chemical composition shown in table 1 as raw material casting formation counter beating hammer type disintegrator (model PFCM1508); The tup, side plate and the tooth plate that respectively casting are formed are heat-treated, and this heat treatment step comprises quenching and tempering successively, and the main technologic parameters in heat treatment process is as shown in table 2, and wherein, the medium adopted in quenching process is air.
Table 1
Table 2
Respectively by the tup of the same size specification made in above-described embodiment 1-5 and Comparative Examples 1-2, side plate and tooth plate are arranged on counter beating hammer type disintegrator (model PFCM1508), and carry out respectively the test of the basic identical titanium slag of broken hardness and granularity (rock of the similar f=5 of hardness), and guarantee tup above-mentioned in process of the test, side plate and tooth plate all meet Application standard (be above-mentioned wearing piece all can in use not occur scrapping and can't be normally broken phenomenon), weighing the gross weight of broken titanium slag, and calculate wearing piece (tup in every group of test, side plate and tooth plate) gross weight that loses, the weight of calculating wearing piece lose one kilogram the average processing capacity (being the weight of broken titanium slag) of corresponding titanium slag, the results are shown in Table 3.
Table 3
Referring in table 3, comparing embodiment 1-5 and Comparative Examples 1-2 can find out, wear resistant cast iron part than prior art, there is clear superiority in the average processing capacity that the weight of the wear resistant cast iron part wearing piece for broken titanium slag time thed provide according to the utility model loses the titanium slag of one kilogram of correspondence, also, greatly be better than existing wear resistant cast iron part according to the wearability of wear resistant cast iron part of the present utility model; Comparing embodiment 2-4 and embodiment 1,5 can find out, when the content of the V content that is 4.5-5.5 % by weight and Mo is the 2.5-3.5 % by weight, the wearability of wear resistant cast iron part is more excellent.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.It should be noted that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can be combined by any suitable mode.In addition, between various embodiment of the present utility model, also can carry out any combination, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. a counter beating hammer type disintegrator, this counter beating hammer type disintegrator comprises casing (1) and passes the power transmission shaft (2) of two the first side walls settings of this casing (1), on the part that is positioned at described casing (1) of described power transmission shaft (2), being provided with can be with the hammer section of this power transmission shaft (2) rotation, this hammer section comprises tup (3), be provided with side plate (4) on the inner surface of described the first side wall, it is characterized in that, described side plate (4) is arranged on the corresponding position of the movement locus with described tup (3) on the inner surface of described the first side wall.
2. counter beating hammer type disintegrator according to claim 1, is characterized in that, described side plate (4) comprises the polylith side plate daughter board (5) be stitched together.
3. counter beating hammer type disintegrator according to claim 2, it is characterized in that, be provided with the first connecting hole (9) on described side plate daughter board (5), be provided with the second connecting hole on described the first side wall, connector through described the first connecting hole (9) and described the second connecting hole so that described side plate daughter board (5) is connected on described the first side wall.
4. counter beating hammer type disintegrator according to claim 3, is characterized in that, described side plate (4) forms annulus section shape.
5. counter beating hammer type disintegrator according to claim 4, is characterized in that, described side plate (4) is divided into a plurality of described side plate daughter boards (5) along the ring segment-shaped arcuate directions of described circle.
6. counter beating hammer type disintegrator according to claim 5, it is characterized in that, described side plate daughter board (5) is being respectively arranged with described the first connecting hole (9) near the arc avris with near the outer arcuate avris, and the quantity of described first connecting hole (9) of close arc avris is less than the quantity near described first connecting hole (9) of outer arcuate avris.
7. counter beating hammer type disintegrator according to claim 6, it is characterized in that, described side plate daughter board (5) is provided with described first connecting hole (9) in the centre near the arc avris, and is provided with respectively described first connecting hole (9) at place, the two ends near the outer arcuate avris.
8. according to the described counter beating hammer type disintegrator of any one in claim 1-7, it is characterized in that, described casing (1) comprises on the inner surface of the second sidewall of connecting two described the first side walls and this second sidewall and is provided with tooth plate (8).
9. according to the described counter beating hammer type disintegrator of any one in claim 1-7, it is characterized in that, the top of described casing (1) is provided with charging aperture, and bottom is provided with discharge gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206018217U CN203018128U (en) | 2012-11-15 | 2012-11-15 | Counterattack hammer crusher |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206018217U CN203018128U (en) | 2012-11-15 | 2012-11-15 | Counterattack hammer crusher |
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| CN203018128U true CN203018128U (en) | 2013-06-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226423A (en) * | 2014-09-04 | 2014-12-24 | 中建材（合肥）水泥通用设备科技有限公司 | Retainer ring lining plate for hammer crusher |
| CN106824397A (en) * | 2017-02-21 | 2017-06-13 | 刘涛 | A kind of production system of desulfurization stone flour |
-
2012
- 2012-11-15 CN CN2012206018217U patent/CN203018128U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226423A (en) * | 2014-09-04 | 2014-12-24 | 中建材（合肥）水泥通用设备科技有限公司 | Retainer ring lining plate for hammer crusher |
| CN104226423B (en) * | 2014-09-04 | 2017-02-01 | 中建材（合肥）水泥通用设备科技有限公司 | Retainer ring lining plate for hammer crusher |
| CN106824397A (en) * | 2017-02-21 | 2017-06-13 | 刘涛 | A kind of production system of desulfurization stone flour |
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Granted publication date: 20130626 |
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| CX01 | Expiry of patent term |