CN106180552A - A kind of blank manufacture method of gear box of tractor - Google Patents

A kind of blank manufacture method of gear box of tractor Download PDF

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Publication number
CN106180552A
CN106180552A CN201610655530.9A CN201610655530A CN106180552A CN 106180552 A CN106180552 A CN 106180552A CN 201610655530 A CN201610655530 A CN 201610655530A CN 106180552 A CN106180552 A CN 106180552A
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CN
China
Prior art keywords
tractor
gear box
core
arenaceous shell
template
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610655530.9A
Other languages
Chinese (zh)
Inventor
李向阳
Original Assignee
李向阳
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 李向阳 filed Critical 李向阳
Priority to CN201610655530.9A priority Critical patent/CN106180552A/en
Publication of CN106180552A publication Critical patent/CN106180552A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C13/00Moulding machines for making moulds or cores of particular shapes
    • B22C13/08Moulding machines for making moulds or cores of particular shapes for shell moulds or shell cores
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/02Sand moulds or like moulds for shaped castings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/10Cores; Manufacture or installation of cores
    • B22C9/103Multipart cores
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings
    • B22C9/24Moulds for peculiarly-shaped castings for hollow articles

Abstract

The blank manufacture method of a kind of gear box of tractor, belongs to agricultural mechanical field, comprises the following steps: one, according to the design drawing of gear box of tractor, and gear box of tractor is divided into upper and lower two parts, separately designs manufacture gear box of tractor precoated sand mould;Two, the precoated sand mould of gear box of tractor is put on automatic moulding machine produces precoated sand cast arenaceous shell model and core model;Three, cast;Four, taking out foundry goods and clear up, having the production that can efficiently realize gear box of tractor blank, saving material, with artificial, reduces machining amount, reduces casting flaw, raising yield rate, easily realizes the feature of automated production.

Description

A kind of blank manufacture method of gear box of tractor
Technical field
The invention belongs to agricultural mechanical field, particularly to the blank manufacture method of a kind of gear box of tractor.
Background technology
Gear box of tractor is a vitals of tractor, owing to inside needs to install multiple parts, so its Structure and shape matching are complicated, and its producer uses the method for metal casting to produce blank mostly, is then carrying out machining, To obtain more preferable stability and machining accuracy;Existing gear box of tractor blank uses cast iron to cast mostly, its Casting method is first according to Gearbox design drawing, selects suitable die joint, makes profile identical with change speed gear box shape Built-up pattern, this built-up pattern is mostly using die joint for boundary as the faying face of built-up pattern, and this model is mostly wood Matter or aluminum are to carry and processing;Second, model is put into sandbox, inserts foundry sand and tamp, sandbox is separately taken Go out model, be the formation of the cavity that shape is identical with model in the middle of the sand in sandbox, then produce pouring channel and rising head Just complete the sand mold before casting to make;3rd, after sand mold is carried out suitable drying, sandbox is closed up, molten metal will be cast Pour into from pouring channel;4th, after cooling, sandbox is taken off, sand mold is crushed, take out foundry goods, take out cast gate and rising head, the completeest Become the making of gear box of tractor blank;When pouring in sand mold due to molten iron, there is expansive force in molten iron, and sand mold is relative to sand mold Soft, the shape of sand mold inner chamber will be made to produce change, and this change is uncertain, results in the blank that casts out Overall dimensions is uncertain;Due to process above, it is big to there is operative's amount of labour in its casting method, skilled to workman Operant skill requires height, it is desirable to working area is big, and working environment is poor, and dust is big, and cast(ing) surface material roughness value is high, reserved processing Amount is big, waste of raw materials, flexible type, the defects such as qualified yield rate is low.
Summary of the invention
Produce the problems referred to above existed for existing gear box of tractor blank, the present invention proposes a kind of gear box of tractor Blank manufacture method, it is characterised in that: comprise the following steps: one, according to the design drawing of gear box of tractor, by tractor Change speed gear box is divided into upper and lower two parts, separately designs manufacture gear box of tractor precoated sand mould;Two, covering gear box of tractor Film sand mo(u)ld tool is put on automatic moulding machine produces precoated sand cast arenaceous shell model and core model;Three, cast;Four, casting is taken out Part is also cleared up.
Gear box of tractor precoated sand mould described in described step one refer to use ferrous materials make for Make arenaceous shell and the mould of core model;It is characterized in that: include gear box of tractor top arenaceous shell mould, gear box of tractor Top core mold, gear box of tractor bottom arenaceous shell mould, gear box of tractor bottom core mold;Described tractor becomes Speed upper box part arenaceous shell mould is for making the external shape on the top of gear box of tractor;Described gear box of tractor top sand Core mold is for making the interior shape on gear box of tractor top;Described gear box of tractor bottom arenaceous shell mould is used for making Make the external shape of the bottom of gear box of tractor;Described gear box of tractor bottom core mold is used for making tractor and becomes The interior shape of speed lower box part;Described gear box of tractor top arenaceous shell mould closes with gear box of tractor bottom arenaceous shell mould After holding together, form the entire exterior portion shape of complete gear box of tractor;Described gear box of tractor top core mold with drag After machine drawing change speed gear box bottom core mold is closed up, form the complete intra shape of complete gear box of tractor.
Described gear box of tractor top arenaceous shell mould, it is characterised in that: include top arenaceous shell upper mold, under the arenaceous shell of top Mould;Described top arenaceous shell upper mold is combined the external shape forming gear box of tractor top with described top arenaceous shell lower mold; Described top arenaceous shell upper mold is fixed relative position with top arenaceous shell lower mold by alignment pin.
Described gear box of tractor bottom arenaceous shell mould, it is characterised in that: include bottom arenaceous shell upper mold, under the arenaceous shell of bottom Mould;Described bottom arenaceous shell upper mold is combined the external shape forming gear box of tractor bottom with described bottom arenaceous shell lower mold; Described bottom arenaceous shell upper mold is fixed relative position with bottom arenaceous shell lower mold by alignment pin.
Described top arenaceous shell upper mold, it is characterised in that: include template, punch, position hole;Described template is positioned at punch Periphery, be made up of ferrous materials;Described punch is arranged in template, outside its external surface shape is with gear box of tractor top Shape is identical;Described hole, location is arranged in template, corresponding with the hole, location in the arenaceous shell lower mold of top.
Described top arenaceous shell lower mold, it is characterised in that: include template, die cavity, position hole;Described template is positioned at die cavity Periphery, be made up of ferrous materials;Described die cavity is arranged in template, outside its inner surface configuration is with gear box of tractor top Shape is identical;Described hole, location is arranged in template, corresponding with the hole, location in the arenaceous shell upper mold of top, after the alignment of hole, location, Punch and the thickness of die cavity composition arenaceous shell.
Described bottom arenaceous shell upper mold, it is characterised in that: include template, punch, position hole;Described template is positioned at punch Periphery, be made up of ferrous materials;Described punch is arranged in template, outside its external surface shape is with gear box of tractor bottom Shape is identical;Described hole, location is arranged in template, corresponding with the hole, location in the arenaceous shell lower mold of bottom.
Described bottom arenaceous shell lower mold, it is characterised in that: include template, die cavity, position hole;Described template is positioned at die cavity Periphery, be made up of ferrous materials;Described die cavity is arranged in template, outside its inner surface configuration is with gear box of tractor bottom Shape is identical;Described hole, location is arranged in template, corresponding with the hole, location in the arenaceous shell upper mold of bottom, after the alignment of hole, location, Punch and the thickness of die cavity composition arenaceous shell.
Described gear box of tractor top core mold, it is characterised in that: include top core upper mold, under the core of top Mould;The faying face of described top core upper mold and described top core lower mold is the cast die joint of gear box of tractor; Described top core upper mold is fixed relative position with top core lower mold by alignment pin;Described top core upper mold is with described Top core under mold cavity be involutory after formed gear box of tractor upper lumen shape.
Described gear box of tractor bottom core mold, it is characterised in that: include bottom core upper mold, under the core of bottom Mould;The faying face of described bottom core upper mold and described bottom core lower mold is the cast die joint of gear box of tractor; Described bottom core upper mold is fixed relative position with bottom core lower mold by alignment pin;Described bottom core upper mold is with described Bottom core under mold cavity be involutory after formed gear box of tractor lower lumen shape.
Described top core upper mold, it is characterised in that: include template, punch, position hole;Described template is positioned at punch Periphery, be made up of ferrous materials;Described punch is arranged in template, its external shape and gear box of tractor upper lumen Shape is identical;Described hole, location is positioned in template, corresponding with the hole, location in the core lower mold of top.
Described top core lower mold, it is characterised in that: include template, die cavity, position hole;Described template is positioned at die cavity Periphery, be made up of ferrous materials;Described die cavity is arranged in template, its cavity shape and gear box of tractor upper lumen Shape is identical;Described hole, location is positioned in template, corresponding with the hole, location in the core upper mold of top.
Described bottom core upper mold, it is characterised in that: include template, punch, position hole;Described template is positioned at punch Periphery, be made up of ferrous materials;Described punch is arranged in template, its external shape and gear box of tractor lower lumen Shape is identical;Described hole, location is positioned in template, corresponding with the hole, location in the core lower mold of bottom.
Described bottom core lower mold, it is characterised in that: include template, die cavity, position hole;Described template is positioned at die cavity Periphery, be made up of ferrous materials;Described die cavity is arranged in template, its cavity shape and gear box of tractor lower lumen Shape is identical;Described hole, location is positioned in template, corresponding with the hole, location in the core upper mold of bottom.
The making of the described arenaceous shell in step 2 refers to be placed on arenaceous shell forming machine arenaceous shell mould, notes therein Enter precoated sand pressurized, heated sizing and solidifying, formed gear box of tractor processed cast with certain thickness inner chamber size with drag The cavity body that machine drawing change speed gear box overall dimensions is identical.
Core in described step 2 makes and refers to core mold be placed on core forming machine, in core mold Inject precoated sand and heat-shaping solidification, formed gear box of tractor cast with gear box of tractor inside dimension shape phase Same core.
The described arenaceous shell in step 2 or core automatic moulding machine are a kind of double precoated sand arenaceous shell automatic moulding machines, It is characterized in that: include right mould bases, frame, hydraulic system, mould bases mobile device, mould bases plate, compressed air system, control system System, sandbox, sand hopper, left mould frame;Described right fixing of the forming frame, at mould bases mobile device right-hand member, including mould bases plate, Die and mould plate, guides Support bar;Described frame includes base, support, and described floor installation is under double precoated sand arenaceous shell automatic moulding machine Portion;Described support is arranged on base;Described hydraulic system includes Hydraulic Station, controls element, hydraulic cylinder;Described mould bases Mobile device is arranged on base, including mobile working platform;Described mobile working platform can on base transverse shifting;Described Mould bases plate be arranged on left mould frame and the two ends of right mould bases, be connected with guiding support bar two ends respectively;Described compressed air system System includes source of the gas, air accumulator, cylinder;Described control system includes controller, sensor, programmer, parameter setting apparatus; Described sandbox is arranged in frame;Described sand hopper is arranged on left mould frame and the top of right mould bases;Described left fixing of the forming frame Symmetrical with right mould bases at the left end of mould bases mobile device.
Described step 3 refers to combine the precoated sand arenaceous shell made and core, and at its cavity, cast enters proportioning Meet the molten iron of the fusing of gear box of tractor material component requirements.
Described step 4 be by poured into a mould molten iron precoated sand arenaceous shell cool down after the most defeated and dispersed, taking-up inner casts, clearly Reason cast gate, rising head, and residual impurity, enter next process and carry out heat treatment and machining.
Beneficial effect
The beneficial effects of the present invention is, it is possible to efficiently realize the production of gear box of tractor blank, saving material, with artificial, subtracts Few machining amount, reduces casting flaw, improves yield rate, easily realizes automated production.
Accompanying drawing explanation
Fig. 1 is the structural representation of gear box of tractor in the present invention
01. gear box of tractor shell, 02 gear box of tractor inner chamber.
Fig. 2 is the structural representation of gear box of tractor top arenaceous shell mould
1. top arenaceous shell upper mold, 2. top arenaceous shell lower mold.
Fig. 3 is the structural representation of gear box of tractor bottom arenaceous shell mould
3. bottom arenaceous shell upper mold, 4. bottom arenaceous shell lower mold.
Fig. 4 is the structural representation of top arenaceous shell upper mold
11. templates, 12. punch, 13. holes, location.
Fig. 5 is the structural representation of top arenaceous shell lower mold
21. templates, 22. die cavitys, 23. holes, location.
Fig. 6 is the structural representation of bottom arenaceous shell upper mold
31. templates, 32. punch, 33. holes, location.
Fig. 7 is the structural representation of bottom arenaceous shell lower mold
41. templates, 42. die cavitys, 43. holes, location.
Fig. 8 is the structural representation of gear box of tractor top core mold
5. top core lower mold, 6. top core upper mold.
Fig. 9 is the structural representation of top core lower mold
51. templates, 52. die cavitys, 53. holes, location.
Figure 10 is the structural representation of top core upper mold
61. templates, 62. punch, 63. holes, location.
Figure 11 is the structural representation of gear box of tractor bottom core mold
7. bottom core upper mold, 8. bottom core lower mold.
Figure 12 is the structural representation of bottom core upper mold
71. templates, 72. punch, 73. holes, location.
Figure 13 is the structural representation of bottom core lower mold
81. templates, 82. die cavitys, 83. holes, location.
Detailed description of the invention
In order to further illustrate technical scheme, the detailed description of the invention of the present invention is described in conjunction with accompanying drawing, as Fig. 1 to Figure 13, according to the design drawing of gear box of tractor, in this example as a example by medium-sized tractor change speed gear box, becomes tractor Speed case is divided into upper and lower, the overall dimensions of gear box of tractor is amplified 8-12 millimeter, makes gear box of tractor respectively The top arenaceous shell upper mold 1 of top arenaceous shell mould and bottom arenaceous shell mould and top arenaceous shell lower mold 2, bottom arenaceous shell upper mold 3, bottom sand Shell lower mold 4, and it is respectively prepared gear box of tractor top arenaceous shell and gear box of tractor bottom arenaceous shell;By on gear box of tractor Portion's arenaceous shell has combined the complete arenaceous shell identical with gear box of tractor profile with gear box of tractor bottom arenaceous shell;To simultaneously The mode that the interior shape of gear box of tractor is identical with the decomposition of external shape is divided into upper and lower, makes tractor respectively Upper part of gear box core mold and bottom core mold are exactly top core upper mold 5, top core lower mold 6, bottom core upper mold 7 With top core lower mold 8, the top core made and bottom core are combined, forms complete gear box of tractor inner chamber shape Shape;This example use every mold make the arenaceous shell of upper and lower and the core of gear box of tractor simultaneously;And by tractor Change speed gear box arenaceous shell and core mold are installed on arenaceous shell core automatic moulding machine, produce and gear box of tractor shell 01 shape Identical arenaceous shell and the core identical with gear box of tractor inner chamber 02 shape;By the arenaceous shell of gear box of tractor made and Core is placed on cast place, puts into inside arenaceous shell by core according to the structure of gear box of tractor, by fusing ferrum good for proportioning Water pours in arenaceous shell, after cooling, opens arenaceous shell, takes out foundry goods, cast gate and rising head is removed, and clear up on spray miscellaneous Matter, just completes the production of the blank of brake disc.
Due to automated production during the production of arenaceous shell and core, it is possible to produce in enormous quantities, overcome clay-bonded sand or resin sand The complexity of moulding, saves a large amount of Foundry quartz sand, reduces production cost and labor intensity;Arenaceous shell and core mold use simultaneously Life-span is long, overcomes wooden model or the short-life shortcoming of aluminum dipping form.

Claims (1)

1. a blank manufacture method for gear box of tractor, comprises the following steps: one, according to the design drawing of gear box of tractor Paper, is divided into upper and lower two parts by gear box of tractor, separately designs manufacture gear box of tractor precoated sand mould;Two, will be dilatory The precoated sand mould of machine gearbox is put on automatic moulding machine produces precoated sand cast arenaceous shell model and core model;Three, water Note;Four, take out foundry goods and clear up: it is characterized in that: described top core lower mold, including template, die cavity, positioning hole;Described Template be positioned at the periphery of die cavity, be made up of ferrous materials;Described die cavity is arranged in template, its cavity shape and tractor Upper part of gear box cavity shape is identical;Described hole, location is positioned in template, corresponding with the hole, location in the core upper mold of top.
CN201610655530.9A 2016-08-11 2016-08-11 A kind of blank manufacture method of gear box of tractor Pending CN106180552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610655530.9A CN106180552A (en) 2016-08-11 2016-08-11 A kind of blank manufacture method of gear box of tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610655530.9A CN106180552A (en) 2016-08-11 2016-08-11 A kind of blank manufacture method of gear box of tractor

Publications (1)

Publication Number Publication Date
CN106180552A true CN106180552A (en) 2016-12-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610655530.9A Pending CN106180552A (en) 2016-08-11 2016-08-11 A kind of blank manufacture method of gear box of tractor

Country Status (1)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013233550A (en) * 2012-05-07 2013-11-21 Hazu Kogyo Kk Sand mold manufacturing method of mold
CN105397024A (en) * 2015-12-09 2016-03-16 禹州市昆仑模具有限公司 Sand shell mold for manufacturing blank of vehicle braking disc
CN105458184A (en) * 2015-12-09 2016-04-06 禹州市昆仑模具有限公司 Workblank manufacturing method of automobile brake disc
CN105583373A (en) * 2016-03-21 2016-05-18 禹州市昆仑模具有限公司 Sand shell lower mould of pipe-clip sand shell mould
CN105583372A (en) * 2016-03-21 2016-05-18 禹州市昆仑模具有限公司 Sand core lower mould of pipe-clip sand core mould
CN105728648A (en) * 2016-03-21 2016-07-06 禹州市昆仑模具有限公司 Method for manufacturing blank of pipe clamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013233550A (en) * 2012-05-07 2013-11-21 Hazu Kogyo Kk Sand mold manufacturing method of mold
CN105397024A (en) * 2015-12-09 2016-03-16 禹州市昆仑模具有限公司 Sand shell mold for manufacturing blank of vehicle braking disc
CN105458184A (en) * 2015-12-09 2016-04-06 禹州市昆仑模具有限公司 Workblank manufacturing method of automobile brake disc
CN105583373A (en) * 2016-03-21 2016-05-18 禹州市昆仑模具有限公司 Sand shell lower mould of pipe-clip sand shell mould
CN105583372A (en) * 2016-03-21 2016-05-18 禹州市昆仑模具有限公司 Sand core lower mould of pipe-clip sand core mould
CN105728648A (en) * 2016-03-21 2016-07-06 禹州市昆仑模具有限公司 Method for manufacturing blank of pipe clamp

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Application publication date: 20161207

RJ01 Rejection of invention patent application after publication