CN104985153B - A kind of eccentric bushing centrifugal casting system and its casting method - Google Patents
A kind of eccentric bushing centrifugal casting system and its casting method Download PDFInfo
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- CN104985153B CN104985153B CN201510450223.2A CN201510450223A CN104985153B CN 104985153 B CN104985153 B CN 104985153B CN 201510450223 A CN201510450223 A CN 201510450223A CN 104985153 B CN104985153 B CN 104985153B
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- eccentric bushing
- centrifugal casting
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- backing plate
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- 238000005266 casting Methods 0.000 title claims abstract description 39
- 238000009750 centrifugal casting Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000009413 insulation Methods 0.000 claims abstract description 21
- 238000004321 preservation Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Centrifugal Separators (AREA)
Abstract
The present invention relates to a kind of eccentric bushing centrifugal casting system and its casting method, belong to eccentric bushing technical field of processing equipment, including the mould being connected by base and centrifugal casting machine, described base is located at the lower section of mould, described mould includes outer wall and inner chamber, described inner chamber is set to eccentric structure, described outer wall includes tenuity and heavy wall area, arrange fluted on described outer wall, it is provided with heat preservation zone and cooling zone in described groove, at least provided with a cooling unit in described cooling zone, at least provided with a heat-insulation unit in described heat preservation zone, the present invention has effective hot cracking tendency reducing casting liquid, the consistency of eccentric bushing finished product and product qualified rate are high, practical, finished product is facilitated to take out, the high feature of production efficiency.
Description
Technical field
The invention belongs to eccentric bushing technical field of processing equipment, relate in particular to a kind of eccentric bushing centrifugal casting system and
Its casting method.
Background technology
Eccentric bushing, as conventional wear-resisting engineering component, in use, needs to bear strong abrasion and impulsive force,
Lead to its service life shorter.For effective service life extending eccentric bushing it should suitable material is selected according to working condition
And processing method.
Potassium steel has good shock peening effect, can meet the requirement to material for the eccentric bushing.But, liquid Gao Meng
The cooling procedure of steel belongs to intermediate setup mode, and its feeding, hot cracking tendency and mobility are all coagulated between Layer by layer solidification and pasty state
Gu between, add that eccentric bushing sectional dimension differs greatly, easily produce larger internal stress at the sectional dimension change of eccentric bushing
And cause crackle.In addition, potassium steel is in sand casting process, pore and rarefaction defect easily occur, have a strong impact on foundry goods matter
Amount.How to complete the casting of eccentric bushing from suitable casting method, be a technical problem worth thinking deeply about.
Content of the invention
For a variety of deficiencies of prior art, in order to solve the above problems it is proposed that a kind of effective reduction casts the heat of liquid
Split tendency, the consistency of eccentric bushing finished product and product qualified rate are high, practical, facilitate finished product to take out, high inclined of production efficiency
Heart set centrifugal casting system and its casting method.
For achieving the above object, the present invention provides following technical scheme：
A kind of eccentric bushing centrifugal casting system, including the mould being connected by base and centrifugal casting machine, described base is located at
The lower section of mould, described mould includes outer wall and inner chamber, and described inner chamber is set to eccentric structure, described outer wall include tenuity and
Heavy wall area, described outer wall is arranged fluted, is provided with heat preservation zone and cooling zone, at least sets in described cooling zone in described groove
Put a cooling unit, at least provided with a heat-insulation unit in described heat preservation zone.
Further, the top of described mould is additionally provided with support, is provided with matched fixed block in described support.
Further, the bottom of described mould is provided with interior pad, and its top is provided with outer pad, between described outer pad and fixed block
It is provided with backing plate.
Further, described interior pad is set to solid construction, and described outer pad and backing plate are disposed as circular ring structure, and described
Interior pad, outer pad, backing plate are all mated with mould.
Further, at least provided with a clamp device, described clamp device is single with cooling by mould for described die surface
Unit, heat-insulation unit are fixed, and described clamp device is provided with securing member.
Further, the adjacent spacing between the two of described heat-insulation unit spacing phase between the two adjacent with cooling unit
Deng described spacing is set to 2-4mm.
Further, described heat preservation zone and heavy wall area are correspondingly arranged, described heat preservation zone with the axis in heavy wall area as axis of symmetry,
And with the excircle center of mould as the center of circle, its angle is 140-160 °.
Further, described cooling zone and tenuity are correspondingly arranged, described cooling zone with the axis of tenuity as axis of symmetry,
And with the excircle center of mould as the center of circle, its angle is 140-160 °.
Further, along the circumferencial direction setting of mould, the width of described groove is less than the height of mould to described groove.
Separately, the present invention also provides a kind of casting method of eccentric bushing centrifugal casting system, comprises the steps：
(1) by floor installation on centrifugal casting machine, interior pad is positioned between mould and base and is fixed；
(2) outer pad is placed in the top of mould, and places backing plate, fixed block is pressed in support；
(3) place heat-insulation unit, cooling unit in groove, and be fixed by clamp device；
(4) the pre-heat treatment is carried out to mould；
(5) open centrifugal casting machine, to inner chamber spraying high temperature coating, liquid injection inner chamber will be cast, cast；
(6) after the completion of casting, fixed block is separated with support, remove backing plate and outer pad, take out eccentric bushing finished product.
The invention has the beneficial effects as follows：
1st, the present invention, by centrifugal casting machine, promotes to cast liquid under the influence of centrifugal force full of mould, is effectively improved casting
The mobility of liquid making, contributes to casting the discharge of gas and field trash in liquid, increases the compactness of eccentric bushing finished product.
2nd, the present invention passes through cooling unit, heat-insulation unit adjusts the rate of cooling casting liquid at different wall, reduces casting
The hot cracking tendency of liquid, is favorably improved eccentric bushing product qualified rate.
3rd, the present invention passes through to adjust cooling unit, the quantity of heat-insulation unit, realize different size and material eccentric bushing from
The heart casts, practical.
4th, the present invention is positioned to cooling unit, heat-insulation unit by groove, meanwhile, will be cooled down single by clamp device
Unit, heat-insulation unit and mould are fixed together, and are favorably improved the stability of whole system.
5th, the present invention is provided with interior pad and outer pad, effectively prevents from casting liquid and mould adhesion, facilitates eccentric bushing finished product to take out.
6th, present configuration is simple, installs and debugging is convenient, effectively improve the production efficiency of eccentric bushing.
Brief description
Fig. 1 is the cross-sectional view of the present invention；
Fig. 2 is the overall structure diagram of the present invention；
Fig. 3 is that the left view of the present invention partly cuts open structural representation；
Fig. 4 is the mould structure schematic diagram of the present invention.
In accompanying drawing：Base 1, mould 2, outer wall 21, inner chamber 22, heavy wall area 23, tenuity 24, heat-insulation unit 3, cooling unit
4th, clamp device 5, securing member 51, outer pad 6, backing plate 7, fixed block 8, support 9, groove 10, interior pad 11, centrifugal casting machine 12, guarantor
Warm area 13, cooling zone 14.
Specific embodiment
In order that those skilled in the art more fully understand technical scheme, with reference to the accompanying drawing of the present invention, right
Technical scheme carries out clear, complete description, and based on the embodiment in the application, those of ordinary skill in the art exist
The similar embodiment of other being obtained on the premise of not making creative work, all should belong to the scope of the application protection.
Embodiment one：
As Figure 1 and Figure 4, a kind of eccentric bushing centrifugal casting system, including the mould 2 being connected by base 1 and centrifugal casting
Machine 12, described base 1 is located at the lower section of mould 2, starts described centrifugal casting machine 12, described base 1, mould 2 can be driven to revolve
Turn, be used for holding casting liquid in described mould 2.
Described mould 2 includes outer wall 21 and inner chamber 22, and described inner chamber 22 is set to eccentric structure, in described centrifugal casting machine
Under 12 high-speed rotation effect, described casting liquid is cast as the eccentric bushing of different wall in inner chamber 22, and described outer wall 21 includes
Tenuity 24 and heavy wall area 23, described casting liquid forms the heavy wall of eccentric bushing finished product in tenuity 24, is formed partially in heavy wall area 23
The heart covers the thin-walled of finished product, and the bottom of described mould 2 is provided with interior pad 11, and its top is provided with outer pad 6, described interior pad 11, outer pad 6
It is disposed as high temperature resistant asbestos pad, effectively prevents from casting liquid and mould 2 adhesion, facilitate eccentric bushing finished product to take out.
As Figure 1-3, the top of described mould 2 is provided with support 9, and described support 9 is around the circumferencial direction etc. of mould 2
Spacing is arranged, and is provided with fixed block 8, described fixed block 8 and support 9 match, and described fixed block 8 can be pressed in described support 9
Enter in support 9, between described outer pad 6 and fixed block 8, be provided with backing plate 7, described interior pad 11 is set to solid construction, described outer pad
6 and backing plate 7 be disposed as circular ring structure, and described interior pad 11, outer pad 6, backing plate 7 are all mated with mould 2.
The size of described interior pad 11 is identical with inner chamber 22, described outer pad 6, backing plate 7 excircle size identical with outer wall 21,
Described outer pad 6, the inner periphery size of backing plate 7 are more than the 1/3 of inner chamber 22 circumferential size, and 1/2 less than inner chamber 22 circumferential size,
Promote described casting liquid can pass sequentially through backing plate 7, outer pad 6, reach in described inner chamber 22, meanwhile, prevent from casting liquid with mould
Have in 2 rotary courses and spill, be sequentially placed outer pad 6, backing plate 7 at the top of mould 2, fixed block 8 is pressed in support 9, externally
Pad 6, backing plate 7 are fixed, and inject casting liquid by described outer pad 6, backing plate 7 into described inner chamber 22.
Embodiment two：
As Figure 1-4, described outer wall 21 is arranged fluted 10, described groove 10 sets along the circumferencial direction of mould 2
Put, the width of described groove 10 is less than the height of mould 2, is provided with heat preservation zone 13 and cooling zone 14 in described groove 10.
Described heat preservation zone 13 and heavy wall area 23 are correspondingly arranged, and the casting liquid being in heavy wall area 23 is incubated, and reduce casting
The rate of cooling of liquid making, described cooling zone 14 and tenuity 24 are correspondingly arranged, and the casting liquid being in tenuity 24 is cooled down,
Improve the rate of cooling of casting liquid, reduce the rate of cooling difference in different wall region for the eccentric bushing, reduce the hot tearing of casting liquid
Tendency, is favorably improved consistency and the product qualified rate of eccentric bushing finished product.
Described heat preservation zone 13 with the axis in heavy wall area 23 as axis of symmetry and with the excircle center of mould 2 as the center of circle, its
Angle is 140-160 °, at least provided with a heat-insulation unit 3 in described heat preservation zone 13, preferably, the material of described heat-insulation unit 3
Matter selects heat-preservation cotton, and described cooling zone 14 is with the axis of tenuity 24 as axis of symmetry and with the excircle center of mould 2 as circle
The heart, its angle is 140-160 °, at least provided with a cooling unit 4 in described cooling zone 14, preferably, described cooling is single
The material selection red copper of unit 4.
The adjacent spacing between the two of described heat-insulation unit 3 spacing between the two adjacent with cooling unit 4 is equal, described
Spacing is set to 2-4mm, and the material of the size according to mould 2 and casting liquid, by adjusting the number of cooling unit 4, heat-insulation unit 3
Amount, realizes different size and the centrifugal casting of material eccentric bushing, practical.
As Figure 1-3, the surface of described mould 2 is at least provided with a clamp device 5, and described clamp device 5 is by mould
Tool 2 is fixing with cooling unit 4, heat-insulation unit 3, described clamp device 5 is provided with securing member 51, is favorably improved whole system
Stability.
Embodiment three：
As Figure 1-4, a kind of described eccentric bushing centrifugal casting system, in specific works, comprises the following steps：
(1) described base 1 is arranged on centrifugal casting machine 12, by described interior pad 11 be positioned over mould 2 and base 1 it
Between, and described mould 2 and base 1 are fixed；
(2) described outer pad 6 is placed in the top of mould 2, and backing plate 7 is placed on pad 6 surface outside, and described fixed block 8 is pressed
Enter in support 9, described outer pad 6, backing plate 7 are fixed, be convenient for eccentric bushing casting；
(3) place heat-insulation unit 3 at equal intervals in described heat preservation zone 13, place at equal intervals in described cooling zone 14
Cooling unit 4, and be fixed by described clamp device 5, preferably, the spacing of described heat-insulation unit 3, cooling unit 4
It is disposed as 3mm, the quantity of described clamp device 5 is set to 3, and described clamp device 5 is equidistant is distributed in mould 2
Surface；
(4) the pre-heat treatment is carried out to described mould 2, promote its temperature to reach 260-300 DEG C, effectively delay to cast the cold of liquid
But process, reduces the rate of cooling of casting liquid, it is to avoid crackle in eccentric bushing finished product；
(5) open described centrifugal casting machine 12, to described inner chamber 22 spraying high temperature coating, liquid injection inner chamber 22 will be cast,
Described casting liquid is full of mould 2 under the influence of centrifugal force, preferably, described casting liquid selects potassium steel material；
(6) after the completion of casting, described fixed block 8 is separated with support 9, remove backing plate 7 and outer pad 6, take out eccentric bushing and become
Product.
In the present embodiment, described high-temperature coatings refer to diatomite paint, are sprayed on inner chamber 22, are prevented effectively from casting liquid
With inner chamber 22 adhesion, it is easy to eccentric bushing finished product and takes out.
Below the present invention is described in detail, the above, only the preferred embodiments of the invention, when can not
Limit the scope of the present invention, that is, all according to the made impartial change of the application scope and modification, all should still belong to covering scope of the present invention
Interior.
Claims (5)
1. a kind of eccentric bushing centrifugal casting system is it is characterised in that including mould and the centrifugal casting machine being connected by base, described
Base is located at the lower section of mould, is used for holding casting liquid in described mould, and described casting liquid selects potassium steel material, described mould
Including outer wall and inner chamber, described inner chamber is set to eccentric structure, and described outer wall includes tenuity and heavy wall area, and described outer wall sets
It is equipped with groove；
It is provided with heat preservation zone and cooling zone, at least provided with a cooling unit, described cooling in described cooling zone in described groove
Area is correspondingly arranged with tenuity, and described cooling zone with the axis of tenuity as axis of symmetry and with the excircle center of mould is
The center of circle, its angle is 140-160 °, and at least provided with a heat-insulation unit in described heat preservation zone, described heat preservation zone is corresponding with heavy wall area
Setting, with the axis in heavy wall area as axis of symmetry and with the excircle center of mould as the center of circle, its angle is for described heat preservation zone
140-160 °, the adjacent spacing between the two of described heat-insulation unit spacing between the two adjacent with cooling unit is equal, described
Spacing is set to 2-4mm；
The top of described mould is additionally provided with support, is provided with matched fixed block, the bottom of described mould in described support
Portion is provided with interior pad, and its top is provided with outer pad, is provided with backing plate between described outer pad and fixed block, and described outer pad and backing plate are equal
It is set to circular ring structure, described outer pad, the inner periphery size of backing plate are more than the 1/3 of lumen circumference size, and are less than lumen circumference
The 1/2 of size.
2. a kind of eccentric bushing centrifugal casting system according to claim 1 it is characterised in that：Described interior pad is set to solid
Structure, and described interior pad, outer pad, backing plate all mated with mould.
3. a kind of eccentric bushing centrifugal casting system according to claim 1 it is characterised in that：Described die surface at least sets
It is equipped with a clamp device, mould is fixed with cooling unit, heat-insulation unit by described clamp device, described clamp device is arranged
There is securing member.
4. a kind of eccentric bushing centrifugal casting system according to claim 1 it is characterised in that：Described groove is along mould
Circumferencial direction is arranged, and the width of described groove is less than the height of mould.
5. a kind of casting method using the eccentric bushing centrifugal casting system as described in claim 1-4 any one, its feature
It is, comprise the steps：
(1) by floor installation on centrifugal casting machine, interior pad is positioned between mould and base and is fixed；
(2) outer pad is placed in the top of mould, and places backing plate, fixed block is pressed in support；
(3) place heat-insulation unit, cooling unit in groove, and be fixed by clamp device；
(4) the pre-heat treatment is carried out to mould, promote its temperature to reach 260-300 DEG C；
(5) open centrifugal casting machine, to inner chamber spraying high temperature coating, liquid injection inner chamber will be cast, described casting liquid selects Gao Meng
Steel matter, is cast；
(6) after the completion of casting, fixed block is separated with support, remove backing plate and outer pad, take out eccentric bushing finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510450223.2A CN104985153B (en) | 2015-07-28 | 2015-07-28 | A kind of eccentric bushing centrifugal casting system and its casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510450223.2A CN104985153B (en) | 2015-07-28 | 2015-07-28 | A kind of eccentric bushing centrifugal casting system and its casting method |
Publications (2)
| Publication Number | Publication Date |
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| CN104985153A CN104985153A (en) | 2015-10-21 |
| CN104985153B true CN104985153B (en) | 2017-03-08 |
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| CN109458398B (en) * | 2018-12-28 | 2024-09-20 | 新乡市海山机械有限公司 | Oil-free lubrication wear-resistant eccentric copper sleeve for crusher and production method thereof |
| CN112077983B (en) * | 2020-09-25 | 2022-02-08 | 航天特种材料及工艺技术研究所 | Centrifugal grouting forming device and method for ceramic hollow rotary structure blank |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162227A (en) * | 1978-06-13 | 1979-12-22 | Shin Nippon Koki Co Ltd | Eccentric pipe and centrifugal casting apparatus |
| JPS56151158A (en) * | 1980-04-22 | 1981-11-24 | Kubota Ltd | Oscillatory rotary casting machine |
| CN103008544B (en) * | 2012-12-06 | 2015-02-18 | 华中科技大学 | Bi-metal bent pipe manufacturing process based on evaporative pattern casting and vibration pouring |
| CN103934427B (en) * | 2014-04-18 | 2016-08-24 | 辽宁永达有色铸造有限公司 | A kind of centre spinning method of asymmetric ring-type high-lead bronze foundry goods |
| CN204817979U (en) * | 2015-07-28 | 2015-12-02 | 青岛港湾职业技术学院 | Eccentric cover centrifugal cast system |
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Effective date of registration: 20180801 Address after: 266599 Yuquanlu Road, Huangdao District, Qingdao, Shandong (north side of Binhai police station) Patentee after: QINGDAO HUAKUN WEAR-RESISTANT STEEL Co.,Ltd. Address before: 266599 65 Chongming Island West Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: QINGDAO HARBOUR VOCATIONAL AND TECHNICAL College |
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Effective date of registration: 20240822 Address after: 276800 Industrial Park, Xumeng Town, Wulian County, Rizhao City, Shandong Province Patentee after: Huakun Wear resistant Materials (Wulian) Co.,Ltd. Country or region after: China Address before: 266599 Yuquanlu Road, Huangdao District, Qingdao, Shandong (north side of Binhai police station) Patentee before: QINGDAO HUAKUN WEAR-RESISTANT STEEL Co.,Ltd. Country or region before: China |