CN203495322U - Circle shear shearing device and composite bush thereof - Google Patents
Circle shear shearing device and composite bush thereof Download PDFInfo
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- CN203495322U CN203495322U CN201320637000.3U CN201320637000U CN203495322U CN 203495322 U CN203495322 U CN 203495322U CN 201320637000 U CN201320637000 U CN 201320637000U CN 203495322 U CN203495322 U CN 203495322U
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- circle shear
- lining
- fixed cover
- composite bush
- scissor blade
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Abstract
The utility model provides a circle shear shearing device and a composite bush of the circle shear shearing device. The circle shear composite bush comprises a hard bush body and a soft bush body, wherein the hard bush body is of an annular structure and used for being fixedly arranged on a cutter shaft of a circle shear in a sleeved mode; the hard bush body is fixedly sleeved with the soft bush body, and therefore composite elastic deformation of the hard bush body and the soft bush body is equal to elastic deformation of a circle shear edge when the circle shear is used for shearing strip steel. The composite bush has the advantages of being stable in performance and high in reliability and has positive significance in reducing circle shear marks and improving the surface quality of strip steel.
Description
Technical field
The utility model belongs to steel rolling finishing equipment technical field, particularly a kind of cutting of circle shear cutting apparatus and composite bush thereof for cold-strip steel finishing.
Background technology
At present, the cutting of circle shear cutting apparatus of cold-strip steel finishing system mainly comprises upper scissor blade, upper scissor blade fixed cover, lower scissor blade, lower scissor blade fixed cover and hydraulic nut locker.Wherein, lower scissor blade fixed cover, upper scissor blade fixed cover Main Function are the location in the circle shear course of work.In band steel shear history, because disc shear edge is subject to shearing force effect meeting generation strain, with steel, also can bend because of the shearing force effect in cutting edge limit portion region simultaneously, circle shear fixed cover is mainly to play a supportive role in band steel bending region, stressed to decompose steel edge portion region, thus guarantee that band steel is straight.
Because material after cold-strip steel annealing is softer thinner, in circle shear trimming process, upper scissor blade fixed cover is stressed larger to lower scissor blade fixed cover, in shear history, disc shear edge is subject to the effect generation strain of shearing force, under the impact of steel edge portion active force, also there is strain by a small margin in circle shear fixed cover.Because the difference of disc shear edge and the stressed effect of fixed cover, and the difference of the strain amplitude of cutting edge and fixed cover, make, at circle shear upper scissor blade fixed cover, lower scissor blade and lower scissor blade fixed cover handing-over interstitial site place, relative deformation occurs, thereby make to be with steel generation bending distortion, cause waster.
Utility model content
The purpose of this utility model is to provide a kind of cutting of circle shear cutting apparatus and composite bush thereof, with solve that prior art exists due to cutting edge and inconsistent the shearing with steel of causing of fixed cover elastic deformation time may there is the problem of bending distortion.
In order to address the above problem, the utility model provides a kind of circle shear composite bush, and for the fixed cover as disc shear edge, it comprises: hard lining, and structure in the form of a ring, for being sheathed on regularly the cutter shaft of circle shear; Soft lining, is sheathed on the outside of described hard lining regularly, for when the when cutting strip steel through rotary shears, makes the composite elastic deformation of described hard lining and soft lining equal the elastic deformation of disc shear edge.
According to a kind of preferred embodiment of above-mentioned circle shear composite bush, wherein, described hard lining is steel, and described soft lining is polyurethane material.
According to a kind of preferred embodiment of above-mentioned circle shear composite bush, wherein, described hard lining is 100Cr steel, and described soft lining is MC nylon material.
According to a kind of preferred embodiment of above-mentioned circle shear composite bush, wherein, the outer end of described hard lining protrudes from the outer end of described soft lining so that there is gap between described soft lining and disc shear edge.
According to a kind of preferred embodiment of above-mentioned circle shear composite bush, wherein, the outside of described hard lining is provided with annular corrugated so that described soft lining is more stably sheathed on described hard lining puts.
In order to address the above problem, the utility model provides a kind of cutting of circle shear cutting apparatus, it comprise upper scissor blade, lower scissor blade, upper cutter shaft, lower cutter shaft, for described upper scissor blade provide location use upper fixed cover and provide the lower fixed cover of the use of location for described lower scissor blade, described upper scissor blade and fixed cover are fixed on described upper cutter shaft, described lower scissor blade and described lower fixed cover are fixed on described lower cutter shaft, wherein, fixed cover and described lower fixed cover are above-mentioned arbitrary described circle shear composite bush.
According to a kind of preferred embodiment of above-mentioned cutting of circle shear cutting apparatus, wherein, in fixed cover, described hard lining is steel, and described soft lining is polyurethane material.In described lower fixed cover, described hard lining is 100Cr steel, and described soft lining is MC nylon material.
The utlity model has stable performance, feature that reliability is high, to reducing circle shear, press against seal, improve strip surface quality and there is positive effect.Be specially adapted to be with steel cutting of circle shear cutting system.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of circle shear composite bush embodiment of the present utility model;
Fig. 2 is along the sectional structure schematic diagram of A-A line in Fig. 1;
Fig. 3 is the structure for amplifying schematic diagram of local X in Fig. 2;
Fig. 4 is the cross section structure schematic diagram of hard lining in Fig. 2.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
The cold rolled annealed cut edge circle shear operating rate with steel is 260-300m/min, while utilizing cutting of circle shear cutting apparatus to shear, be mainly by upper and lower cutting edge, to have rotated trimming to move simultaneously, while shearing for assurance, be with steel straight stable, adopt upper and lower fixed cover clamping band steel.Therefore, as known, in cutting of circle shear cutting apparatus, mainly comprise upper scissor blade, lower scissor blade, upper cutter shaft, lower cutter shaft, for upper scissor blade provide location use upper fixed cover and provide the lower fixed cover of the use of location for lower scissor blade, upper scissor blade and upper fixed cover are fixed on cutter shaft, and lower scissor blade and lower fixed cover are fixed on lower cutter shaft.In order to solve cutting edge and the corresponding fixed cover inconsistent problem of elastic deformation when the work, upper fixed cover and lower fixed cover all adopt composite bush structure, are also the circle shear composite bush embodiment shown in Fig. 1 and Fig. 2.
In the circle shear composite bush embodiment shown in Fig. 1 and Fig. 2, it comprises hard lining 2 and soft lining 1.Hard lining 2 and soft lining 1 be structure in the form of a ring all, and soft lining 1 is sheathed on the outside of hard lining 2 regularly.Wherein, hard lining 2 is for being sheathed on regularly the cutter shaft of circle shear, and fixes by key connected mode, and as shown in the figure, hard lining 2 inner sides are provided with keyway (unmarked).Soft lining 1 is for when the when cutting strip steel through rotary shears, makes the composite elastic deformation of hard lining 2 and soft lining 1 equal the elastic deformation of disc shear edge.
According to stressed difference, preferably, in the upper fixed cover of cutting of circle shear cutting apparatus, hard lining 2 is steel, and soft lining 1 is polyurethane material.In lower fixed cover, hard lining 2 is 100Cr steel, and soft lining 1 is MC nylon material, and more preferably, the hardness of MC nylon material is 80～90HPM(°); The hardness of 100Cr steel is 58～61HRC.And steel inner ring and the phase contrast of nylon outer ring are very tight, not loosening non-slip, guarantee that circumferencial direction is stressed evenly.
When work, band steel will push each fixed cover, especially descend fixed cover, Given this, as shown in Figure 3, the outer end of hard lining 2 protrudes from the outer end of soft lining 1 so that there is gap 12 between soft lining 1 and disc shear edge, and when soft lining 1 stress deformation, gap 12 can provide deformation space to soft lining.
More firm in order to make between hard lining 2 and soft lining 1 to connect, as Fig. 4, the outside of hard lining 2 is provided with annular corrugated 21.
In a specific embodiment, hard lining 2 can be designed to internal diameter Φ 200mm, external diameter Φ 245mm; 1 of soft lining is designed to internal diameter Φ 245mm, external diameter Φ 320mm, guarantees that the strain in shear history is consistent with cutting edge strain, thereby realize steel edge portion pincher, eliminates.
That is, because circle shear composite bush inner ring is 100Cr steel matter (internal diameter is Φ 200mm, and external diameter is Φ 245mm), directly contact with the cutter shaft up and down of circle shear body, guarantee that the combination at work of circle shear lining is stable.The circle shear composite bush position that contacts with the strip is MC nylon material (internal diameter is Φ 245mm, and external diameter is Φ 320mm), guarantees that the strain in shear history is consistent with circle shear strain, thereby realize steel edge portion pincher, eliminates.
In sum, due to the utility model application composite bush, selecting the position that contacts with the strip is the soft lining with good resilience and anti-repeated stock, with steel Metal Phase ratio, soft lining hardness is low, does not damage mill part, under stressed effect, can realize distortion, and can guarantee to realize transition support at disc shear edge and lining contact area, avoid causing because steel lining and disc shear edge strain are inconsistent limit portion bending defect.The utility model MC nylon-10 0Cr steel composite bush is simple and reasonable, and result of use is good, and the shearing that is particularly suitable for the rear soft steel band of annealing is used.
As known by the technical knowledge, the utility model can be realized by other the embodiment that does not depart from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, and is not only.All changes within the scope of the utility model or within being equal to scope of the present utility model are all included in the utility model.
Claims (7)
1. a circle shear composite bush, the fixed cover for as disc shear edge, is characterized in that, comprising:
Hard lining, structure in the form of a ring, for being sheathed on regularly the cutter shaft of circle shear;
Soft lining, is sheathed on the outside of described hard lining regularly, for when the when cutting strip steel through rotary shears, makes the composite elastic deformation of described hard lining and soft lining equal the elastic deformation of disc shear edge.
2. circle shear composite bush according to claim 1, is characterized in that,
Described hard lining is steel, and described soft lining is polyurethane material.
3. circle shear composite bush according to claim 1, is characterized in that,
Described hard lining is 100Cr steel, and described soft lining is MC nylon material.
4. circle shear composite bush according to claim 1, is characterized in that,
The outer end of described hard lining protrudes from the outer end of described soft lining so that there is gap between described soft lining and disc shear edge.
5. circle shear composite bush according to claim 1, is characterized in that,
The outside of described hard lining is provided with annular corrugated so that described soft lining is more stably sheathed on described hard lining puts.
6. a cutting of circle shear cutting apparatus, comprise upper scissor blade, lower scissor blade, upper cutter shaft, lower cutter shaft, for described upper scissor blade provide location use upper fixed cover and provide the lower fixed cover of the use of location for described lower scissor blade, described upper scissor blade and fixed cover are fixed on described upper cutter shaft, described lower scissor blade and described lower fixed cover are fixed on described lower cutter shaft, it is characterized in that, fixed cover and described lower fixed cover are the arbitrary described circle shear composite bush of claim 1-5.
7. cutting of circle shear cutting apparatus according to claim 6, is characterized in that,
Fixed cover is circle shear composite bush claimed in claim 2,
Described lower fixed cover is circle shear composite bush described in claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320637000.3U CN203495322U (en) | 2013-10-15 | 2013-10-15 | Circle shear shearing device and composite bush thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320637000.3U CN203495322U (en) | 2013-10-15 | 2013-10-15 | Circle shear shearing device and composite bush thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203495322U true CN203495322U (en) | 2014-03-26 |
Family
ID=50326329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320637000.3U Expired - Fee Related CN203495322U (en) | 2013-10-15 | 2013-10-15 | Circle shear shearing device and composite bush thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203495322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551656A (en) * | 2013-10-15 | 2014-02-05 | 莱芜钢铁集团有限公司 | Disk shear shearing device and composite liner of disk shear |
-
2013
- 2013-10-15 CN CN201320637000.3U patent/CN203495322U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551656A (en) * | 2013-10-15 | 2014-02-05 | 莱芜钢铁集团有限公司 | Disk shear shearing device and composite liner of disk shear |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20161015 |