CN104226920B - A kind of molding sand for elevator traction sheave of casting and special shaping device thereof - Google Patents
A kind of molding sand for elevator traction sheave of casting and special shaping device thereof Download PDFInfo
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- CN104226920B CN104226920B CN201410441189.8A CN201410441189A CN104226920B CN 104226920 B CN104226920 B CN 104226920B CN 201410441189 A CN201410441189 A CN 201410441189A CN 104226920 B CN104226920 B CN 104226920B
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Abstract
The present invention relates to a kind of molding sand for elevator traction sheave of casting and shaped device thereof, molding sand comprises three-decker, it is divided into fine sand layer, middle layer of sand and coarse sands layer, described fine sand layer is innermost layer, described middle layer of sand is outer at fine sand layer, described coarse sands layer is outer at middle layer of sand, described fine sand layer is less than, by fineness modulus, the layer of sand that the sand of 2.2 forms, described middle layer of sand is the layer of sand being made up of the sand of fineness modulus between 2.3 ~ 3.0, described coarse sand is the layer of sand being made up of the sand of fineness modulus between 3.1 ~ 3.7, between the thickness 30 ~ 50mm of described fine sand layer. This molding sand, under the prerequisite ensureing surface quality of continuous castings, greatly reduces the cost of manufacture of molding sand, and the moulding sand stability after simultaneously shaping is improved, and not easily damages distortion.
Description
Technical field
The present invention relates to a kind of article used for elevator traction sheave of casting, particularly relate to a kind of molding sand for elevator traction sheave of casting.
Background technology
In casting field, molding sand casting a kind of produces the common molding mode of foundry goods, due to molding sand, to cast molding material used cheap and easy to get, Casting mold manufacturing is easy, to the single piece production of foundry goods, produce by batch and produce in a large number and all can adapt to, for a long time, it is the basic technique in Foundry Production always. And molding sand casting step the most important is exactly the sizing carrying out molding sand with sandbox.
Elevator traction sheave is the rope sheave on traction machine, also claims traction rope sheave or drives rope sheave. It is the device that elevator transmits traction power, utilizes the frictional force of grooving on traction steel-cable and traction wheel rim to transmit power, be contained on the worm-wheel shaft in speed reduction unit. Gearless traction machine in this way, is contained in the side of stopper, with electric motor axle, brake shaft on the same axis.
(1) material of traction wheel and structure requirement
Materials And Process Requirement: the whole sound load being born the devices such as sedan-chair railway carriage or compartment, weight-carrying capacity, counterweight due to traction wheel, therefore it is required that traction wheel intensity is big, good toughness, wear-resistant, shock-resistant, so on material multiplex QT60 2 spheroidal graphite cast iron. In order to reduce the abrasion of traction steel-cable in traction wheel grooving, except selecting suitable grooving grooved, roughness, the hardness of the working-surface of grooving should there be is rational requirement.
The diameter of traction wheel: the diameter of traction wheel is greater than 40 times of wirerope diameter. In practice, generally all get 45～55 times, sometimes also it is greater than 60 times. Because increasing to reduce traction machine volume, the reduction ratio of speed reduction unit increases, and therefore its diameter should be suitable for.
The tectonic type of traction wheel: overall traction wheel is divided into two portions formation, middle is wheel cylinder (drum), and outside is made rim type grooving and cut on wheel rim, and outer rim and interior cylinder of taking turns are set with, and link together with articulation bolt and become a traction wheel entirety. The axle of its traction wheel is exactly the worm-wheel shaft in speed reduction unit. Traction wheel grooving shape: the traction that traction wheel drives elevator to run relies on the frictional force between hoist ropes and traction wheel grooving to produce.
Authorization Notice No. is CN202762968U, authorized announcement date is a kind of elevator traction sheave mould, described traction wheel comprises flat plate-like body and is located at described body edges one week continuous print wheel rim, described wheel rim is perpendicular to body plane, body center is provided with axial concentric wheel cylinder, described mould comprises the upper steel mould of shaping traction wheel outside surface and lower steel mould, and the recessed position sand mould of the recessed position of the upper and lower both ends of the surface of shaping traction wheel, it is characterized in that: on described, the shaping described column inner hole sand mould taking turns tube inner chamber it is provided with between lower steel mould, on described, lower steel mould, recessed position sand mould and interior hole sand mould enclose a traction sheave molding chamber, described lower steel mould is provided with casting liquid cast passage, forming cavity described in described channel connection and cast liquid storage pool outside mould. this invention elevator traction sheave mould arranges rising pouring channel architecture, is beneficial to casting liquid and steadily, evenly flows into mould molding chamber, it is to increase castability. fixing emitting of being threaded can be set in Sha Mo upper end, interior hole, be conducive to fixing in the axial location of hole sand mould, conveniently revolve again the lower demoulding.
But produce elevator traction sheave with this kind of steel mould to come with some shortcomings part:
Steel mould can only be used for the elevator traction sheave of same model or same structure after shaping, once structure or model change, steel mould is just no longer applicable, causes the waste of mould, increases the production cost of enterprise. Therefore producing elevator traction sheave in production is that useful molding sand carrys out cast molding, and this kind of mode can not only overcome above-mentioned defect, and Forming Quality is good, and shaping cost is low. This kind of forming method needs to manufacture molding sand, manufacture molding sand and need workman's sand and core moulding, shaping efficiency is lower, reduce the production efficiency of enterprise, and molding sand shaping after, type core to be taken out inconvenience very again, lose time, slightly do not note also making a mess of molding sand, it is necessary to again make, lose time. The sand that existing molding sand is used is all fine sand or is all coarse sand, and fine sand is conducive to the surface quality of foundry goods, but fine sand cost height and not easy-formation; Although and coarse sand cost is lower, but being unfavorable for the surface quality of foundry goods; But it is thus desirable to develop the lower molding sand that can ensure again surface quality of continuous castings of a kind of cost.
Summary of the invention
The defect produced with steel mould exist to overcome, the device that the present invention provides a kind of molding sand for elevator traction sheave of casting and this molding sand shaping is used. This molding sand, under the prerequisite ensureing surface quality of continuous castings, greatly reduces the cost of manufacture of molding sand, and the moulding sand stability after simultaneously shaping is improved, and not easily damages distortion.
In order to solve the problems of the technologies described above, the technical problem that the present invention adopts is:
A kind of molding sand for elevator traction sheave of casting, it is characterized in that: comprise three-decker, it is divided into fine sand layer, middle layer of sand and coarse sands layer, described fine sand layer is innermost layer, described middle layer of sand is outer at fine sand layer, described coarse sands layer is outer at middle layer of sand, described fine sand layer is less than, by fineness modulus, the layer of sand that the sand of 2.2 forms, described middle layer of sand is the layer of sand being made up of the sand of fineness modulus between 2.3～3.0, described coarse sand is the layer of sand being made up of the sand of fineness modulus between 3.1～3.7, between the thickness 30～50mm of described fine sand layer.
The device that a kind of elevator traction sheave casting molding sand is shaping, it is characterized in that: comprise worktable, type core and type core controlling organization, worktable mid-way is provided with type core groove, type core is placed in type core groove, type core controlling organization is for controlling manufacturing mold core jack-up and falls, and type core controlling organization is connected with the bottom of type core.
Described type core controlling organization is the bottom that the push rod of a cylinder or oil cylinder, cylinder or oil cylinder is connected to type core, and the base of cylinder or oil cylinder is fixed on the support of stationary platen.
Described type core controlling organization comprises one piece of top board, lifting bar, fork and bearing, top board is connected with the bottom of type core, lifting bar is connected on top board, fork is hinged on bearing, fork one end is foot-operated end, the other end is lift side, and foot-operated end is not less than the distance of lift side to bearing to the distance of bearing, and lift side is connected with lifting bar.
Described type core controlling organization comprises control cylinder, sleeve, back up pad, push rod, limited block and dwang, described control cylinder one end is connected to bottom type core, the other end and push rod are hinged, push rod is hinged on limited block, limited block is fixed on dwang, sleeve is fixing, and back up pad is fixed on the support of worktable on the supporting plate, and control cylindrical sleeve is in sleeve.
When manufacturing molding sand, control manufacturing mold core jack-up, protrudes from worktable, is put by sandbox on the table, type core is enclosed within sandbox and fills out fine sand layer 30～50mm round type core, then fill out middle layer of sand, finally fill out coarse sands layer, after compacting, control manufacturing mold core falls, taking-up type core, takes out sandbox, completes the shaping of molding sand.
The present invention has the following advantages:
The present invention comprises three-decker, it is divided into fine sand layer, middle layer of sand and coarse sands layer, described fine sand layer is innermost layer, described middle layer of sand is outer at fine sand layer, described coarse sands layer is outer at middle layer of sand, and described fine sand layer is less than, by fineness modulus, the layer of sand that the sand of 2.2 forms, and described middle layer of sand is the layer of sand being made up of the sand of fineness modulus between 2.3～3.0, described coarse sand is the layer of sand being made up of the sand of fineness modulus between 3.1～3.7, between the thickness 30～50mm of described fine sand layer. The fine sand layer of such thickness, while ensureing surface quality of continuous castings, additionally reduces the usage quantity of fine sand, greatly reduces the production cost of molding sand.
Device for the manufacture of elevator traction sheave casting molding sand provided by the invention comprises worktable, type core and type core controlling organization, worktable mid-way is provided with type core groove, type core is placed in type core groove, type core controlling organization is for controlling manufacturing mold core jack-up and falls, and type core controlling organization is connected with the bottom of type core. the type core controlling organization control manufacturing mold core jack-up of the present invention and falling, during jack-up, protrude from worktable, now sandbox is put on the table, type core is enclosed within sandbox, sand is inserted in sandbox, after forming molding sand, control manufacturing mold core controlling organization, type core is fallen, drop in type core groove, type core is taken out from molding sand, complete the making of molding sand, by this invention, workman can be very fast produce molding sand, substantially reduce the Production Time of molding sand, simultaneously by the effect of type core controlling organization, quickly and easily type core is taken out from core, do not destroy molding sand, need not do over again, save the working hour.
Type core controlling organization of the present invention is the bottom that the push rod of a cylinder or oil cylinder, cylinder or oil cylinder is connected to type core, and the base of cylinder or oil cylinder is fixed on the support of stationary platen. Controlling the jack-up of manufacturing mold core by cylinder or oil cylinder and fall, control is simple, and equipment is easily bought, and type of drive is simple, convenient operation.
Type core controlling organization of the present invention comprises one piece of top board, lifting bar, fork and bearing, top board is connected with the bottom of type core, lifting bar is connected on top board, fork is hinged on bearing, fork one end is foot-operated end, the other end is lift side, and foot-operated end is not less than the distance of lift side to bearing to the distance of bearing, and lift side is connected with lifting bar. Being swung up and down round making by fork, drive lifting bar to move up and down, thus drive top board to move up and down, and then band ejector half core moves up and down, the jack-up of finishing type core and fall action, this controlling organization drives simple, hand-manipulated, laborsaving.
Type core controlling organization of the present invention comprises control cylinder, sleeve, back up pad, push rod, limited block and dwang, described control cylinder one end is connected to bottom type core, the other end and push rod are hinged, push rod is hinged on limited block, limited block is fixed on dwang, sleeve is fixing, and back up pad is fixed on the support of worktable on the supporting plate, and control cylindrical sleeve is in sleeve.By the control dwang control control lifting of cylinder thus the jack-up of finishing type core and fall action, control simple, be easy to operation; And the effect of a self-locking is also played by the effect of limited block and push rod, control cylinder can not drop.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is the embodiment of the present invention 2 structural representation;
Fig. 3 is the embodiment of the present invention 3 structural representation;
The vertical view of Fig. 4 embodiment 1;
Fig. 5 molding sand structural representation.
Figure marks 1, worktable, 2, type core, 3, cylinder, 4, top board, 5, lifting bar, 6, fork, 7, bearing, 8, sleeve, 9, back up pad, 10, push rod, 11, limited block, 12, dwang, 13, fine sand layer, 14, middle layer of sand, 15, coarse sands layer.
Embodiment
Provided by the invention is the device for making molding sand, and this device can improve the manufacturing speed of molding sand greatly. With specific embodiment, the present invention is described below.
Embodiment 1
As shown in Figure 1, Figure 4 and Figure 5, a kind of molding sand for elevator traction sheave of casting, comprise three-decker, it is divided into fine sand layer 13, middle layer of sand 14 and coarse sands layer 15, described fine sand layer is innermost layer, described middle layer of sand is outer at fine sand layer, described coarse sands layer is outer at middle layer of sand, described fine sand layer is less than, by fineness modulus, the layer of sand that the sand of 2.2 forms, described middle layer of sand is the layer of sand being made up of the sand of fineness modulus between 2.3, described coarse sand is the layer of sand being made up of the sand of fineness modulus between 3.1, between the thickness 30mm of described fine sand layer.
The present embodiment additionally provides a kind of device manufacturing the present embodiment molding sand, comprise worktable 1, type core 2 and type core controlling organization, worktable 1 mid-way is provided with type core groove, type core is placed in type core groove, type core controlling organization is for controlling manufacturing mold core jack-up and falls, and type core controlling organization is connected with the bottom of type core.
Described type core controlling organization is the bottom that the push rod of a cylinder 3 or oil cylinder, cylinder or oil cylinder is connected to type core, and the base of cylinder or oil cylinder is fixed on the support of stationary platen.
Embodiment 2
As shown in Figure 2 and Figure 5, a kind of molding sand for elevator traction sheave of casting, comprise three-decker, it is divided into fine sand layer 13, middle layer of sand 14 and coarse sands layer 15, described fine sand layer is innermost layer, described middle layer of sand is outer at fine sand layer, described coarse sands layer is outer at middle layer of sand, described fine sand layer is less than, by fineness modulus, the layer of sand that the sand of 2.2 forms, described middle layer of sand is the layer of sand being made up of the sand of fineness modulus between 2.5, described coarse sand is the layer of sand being made up of the sand of fineness modulus between 3.7, between the thickness 40mm of described fine sand layer.
The present embodiment additionally provides a kind of device manufacturing the present embodiment molding sand, comprise worktable 1, type core 2 and type core controlling organization, worktable mid-way is provided with type core groove, type core is placed in type core groove, type core controlling organization is for controlling manufacturing mold core jack-up and falls, and type core controlling organization is connected with the bottom of type core.
Described type core controlling organization comprises one piece of top board 4, lifting bar 5, fork 6 and bearing 7, top board is connected with the bottom of type core, lifting bar is connected on top board, fork is hinged on bearing, fork one end is foot-operated end, the other end is lift side, and foot-operated end is not less than the distance of lift side to bearing to the distance of bearing, and lift side is connected with lifting bar.
Embodiment 3
As shown in Figure 3 and Figure 5, a kind of molding sand for elevator traction sheave of casting, comprise three-decker, it is divided into fine sand layer 13, middle layer of sand 14 and coarse sands layer 15, described fine sand layer is innermost layer, described middle layer of sand is outer at fine sand layer, described coarse sands layer is outer at middle layer of sand, described fine sand layer is less than, by fineness modulus, the layer of sand that the sand of 2.2 forms, described middle layer of sand is the layer of sand being made up of the sand of fineness modulus between 3.0, described coarse sand is the layer of sand being made up of the sand of fineness modulus between 3.4, between the thickness 50mm of described fine sand layer.
The present embodiment additionally provides a kind of device manufacturing the present embodiment molding sand, comprise worktable 1, type core 2 and type core controlling organization, worktable mid-way is provided with type core groove, type core is placed in type core groove, type core controlling organization is for controlling manufacturing mold core jack-up and falls, and type core controlling organization is connected with the bottom of type core.
Described type core controlling organization comprises control cylinder, sleeve 8, back up pad 9, push rod 10, limited block 11 and dwang 12, described control cylinder one end is connected to bottom type core, the other end and push rod are hinged, push rod is hinged on limited block, limited block is fixed on dwang, sleeve is fixing, and back up pad is fixed on the support of worktable on the supporting plate, and control cylindrical sleeve is in sleeve.
Claims (5)
1. the molding sand for elevator traction sheave of casting, it is characterized in that: comprise three-decker, it is divided into fine sand layer, middle layer of sand and coarse sands layer, described fine sand layer is innermost layer, described middle layer of sand is outer at fine sand layer, described coarse sands layer is outer at middle layer of sand, described fine sand layer is less than, by fineness modulus, the layer of sand that the sand of 2.2 forms, described middle layer of sand is the layer of sand being made up of the sand of fineness modulus between 2.3 ~ 3.0, described coarse sand is the layer of sand being made up of the sand of fineness modulus between 3.1 ~ 3.7, between the thickness 30 ~ 50mm of described fine sand layer.
2. a kind of molding sand for elevator traction sheave of casting according to claim 1, it is characterized in that: described molding sand is shaping with special shaped device, this shaped device comprises worktable, type core and type core controlling organization, worktable mid-way is provided with type core groove, type core is placed in type core groove, type core controlling organization is for controlling manufacturing mold core jack-up and falls, and type core controlling organization is connected with the bottom of type core.
3. a kind of molding sand for elevator traction sheave of casting according to claim 2, it is characterized in that: described type core controlling organization is a cylinder or oil cylinder, the push rod of cylinder or oil cylinder is connected to the bottom of type core, and the base of cylinder or oil cylinder is fixed on the support of stationary platen.
4. a kind of molding sand for elevator traction sheave of casting according to claim 2, it is characterized in that: described type core controlling organization comprises one piece of top board, lifting bar, fork and bearing, top board is connected with the bottom of type core, lifting bar is connected on top board, fork is hinged on bearing, and fork one end is foot-operated end, and the other end is lift side, foot-operated end is not less than the distance of lift side to bearing to the distance of bearing, and lift side is connected with lifting bar.
5. a kind of molding sand for elevator traction sheave of casting according to claim 2, it is characterized in that: described type core controlling organization comprises control cylinder, sleeve, back up pad, push rod, limited block and dwang, described control cylinder one end is connected to bottom type core, the other end and push rod are hinged, push rod is hinged on limited block, and limited block is fixed on dwang, and sleeve is fixing on the supporting plate, back up pad is fixed on the support of worktable, and control cylindrical sleeve is in sleeve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410441189.8A CN104226920B (en) | 2014-09-01 | 2014-09-01 | A kind of molding sand for elevator traction sheave of casting and special shaping device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410441189.8A CN104226920B (en) | 2014-09-01 | 2014-09-01 | A kind of molding sand for elevator traction sheave of casting and special shaping device thereof |
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| CN104226920A CN104226920A (en) | 2014-12-24 |
| CN104226920B true CN104226920B (en) | 2016-06-15 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1208496A (en) * | 1968-04-26 | 1970-10-14 | Monsanto Chemicals | Process of metal casting |
| EP1733824A2 (en) * | 2005-06-15 | 2006-12-20 | Uneco, S.A. | Casting mould and process for its manufacturing |
| CN201049380Y (en) * | 2007-06-22 | 2008-04-23 | 杭州双金机械配件有限公司 | Cone type crusher casing forming model |
| CN202192215U (en) * | 2011-07-29 | 2012-04-18 | 繁昌县胜达铸造厂 | Soft-sealing sand mould device |
| CN203031823U (en) * | 2012-09-25 | 2013-07-03 | 湖州安达汽车配件有限公司 | Mold with core capable of being replaced quickly |
| WO2013101874A1 (en) * | 2011-12-28 | 2013-07-04 | Bedloe Industries Llc | Method and system for manufacturing railcar couplers |
| CN103492101A (en) * | 2011-12-28 | 2014-01-01 | 贝德洛工业公司 | Method and system for manufacturing railcar coupler locks |
| CN204052813U (en) * | 2014-09-01 | 2014-12-31 | 浙江盛豪铸造有限公司 | A kind of molding sand for elevator traction sheave of casting and special shaping device thereof |
-
2014
- 2014-09-01 CN CN201410441189.8A patent/CN104226920B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1208496A (en) * | 1968-04-26 | 1970-10-14 | Monsanto Chemicals | Process of metal casting |
| EP1733824A2 (en) * | 2005-06-15 | 2006-12-20 | Uneco, S.A. | Casting mould and process for its manufacturing |
| CN201049380Y (en) * | 2007-06-22 | 2008-04-23 | 杭州双金机械配件有限公司 | Cone type crusher casing forming model |
| CN202192215U (en) * | 2011-07-29 | 2012-04-18 | 繁昌县胜达铸造厂 | Soft-sealing sand mould device |
| WO2013101874A1 (en) * | 2011-12-28 | 2013-07-04 | Bedloe Industries Llc | Method and system for manufacturing railcar couplers |
| CN103492101A (en) * | 2011-12-28 | 2014-01-01 | 贝德洛工业公司 | Method and system for manufacturing railcar coupler locks |
| CN203031823U (en) * | 2012-09-25 | 2013-07-03 | 湖州安达汽车配件有限公司 | Mold with core capable of being replaced quickly |
| CN204052813U (en) * | 2014-09-01 | 2014-12-31 | 浙江盛豪铸造有限公司 | A kind of molding sand for elevator traction sheave of casting and special shaping device thereof |
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| CN104226920A (en) | 2014-12-24 |
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Denomination of invention: The invention relates to molding sand for casting elevator traction wheel and a special forming device thereof Effective date of registration: 20211112 Granted publication date: 20160615 Pledgee: Zhejiang Deqing Rural Commercial Bank Co.,Ltd. Xin'an sub branch Pledgor: ZHEJIANG SHENGHAO CASTING Co.,Ltd. Registration number: Y2021330002234 |