CN207076956U - A kind of high-voltage switch gear oil sump low pressure casting die - Google Patents

Abstract

The utility model provides a kind of high-voltage switch gear oil sump low pressure casting die, including upper die and lower die and liter liquid pouring basin；Lower mould both ends are respectively equipped with locating dowel；Rise liquid pouring basin to be fixedly installed on lower mould by locating dowel, upper mould is arranged at a liter upper surface for liquid pouring basin, and is fixedly connected with both ends locating dowel；Rise liquid pouring basin and be equipped with interconnected cast gate with lower mould bottom；High-voltage switch gear oil sump low pressure casting mould structure provided by the utility model is simple, convenience quick for installation, labor strength are low, and working condition is good, and yield rate is high, and saving the energy without core reduces environmental pollution；The cast structure produced using metal mold high-voltage switch gear oil sump low pressure casting die is fine and close simultaneously, clear-cut, surfaces externally and internally is bright and clean, stable mechanical performance, dimensionally stable uniformity is good, blank allowance in light weight is few, production efficiency is high, product appearance quality is good, particularly improves the inspection of SF6 Air leakage detectors and explosion experiment product qualified rate.

Description

A kind of high-voltage switch gear oil sump low pressure casting die

Technical field

The utility model belongs to low pressure casting die technical field, and in particular to a kind of high-voltage switch gear oil sump low pressure casting Mould.

Background technology

In existing high pressure development equipment, monoblock cast aluminium alloy oil sump is the weight for according with this particular/special requirement equipment Want development trend, and a major transformation of high voltage power transmission and transforming high-voltage switch gear critical component manufacturing technology；Existing this kind of high pressure It is all to use welded-steel plate construction to switch oil sump most countries, and only a small number of American-European countries start direct with cast aluminium alloy gold Cast this kind of high-voltage switch gear oil sump；After monoblock cast aluminium alloy oil sump, make high-tension switch gear its small volume, it is in light weight, Take up an area less, be not affected by environment, safeguarding less, reliability it is high, mounting cost and their entire life expense it is low have it is sizable excellent Gesture；Cast aluminium alloy gold tank body is compared with welding steel body with cost is low, in light weight, small volume, appearance surfaces quality are good, corrosion-resistant Property it is good the features such as, but especially high is required to foundry engieering and mould；Cast aluminium alloy gold high-voltage switch tank must pacify to be held according to pressure Device require manufacture, in addition to requiring common mechanical performance, also require surface roughness, cleannes, resistance to pressure, air-tightness and absolutely Edge etc..Particularly casting has to pass through x-ray detection, hydraulic pressure test, SF6 gas leak detections and explosion experiment.

Because the high-voltage switch gear of the country uses oil-insulation technology more, oil sump uses welded steel structure, without overall The technology and knowhow of cast aluminium alloy gold tank body；Therefore, monoblock cast aluminium alloy hydraulic oil drain pan is to domestic power transmission and transformation industry For be a new production technology；Now to meet the needs of power industry development, domestic many enterprises use gravity core Foundry engieering, but found in actual production, cast using gravity core, product exist productivity ratio is low, production environment is severe, Labor intensity is big, percent defective is high and serious waste of resources, and product is mainly manifested in that alloy property is unstable, casting flaw is more, Up to not requiring, it is that gravity core casting technique is difficult to meet to summarize reason for rough surface, mechanical performance and air-tight test The property requirement of high-voltage switch gear oil sump this kind of product.

Based on technical problem present in the shaping of above-mentioned high-voltage switch gear oil sump, there has been no the solution of correlation；Therefore There is an urgent need to seek effective scheme to solve the above problems.

Utility model content

The purpose of this utility model is for weak point present in above-mentioned technology, proposes a kind of high-voltage switch gear oil sump Low pressure casting die, it is intended to solve that existing high-voltage switch gear oil sump shaping efficiency is low, ropy problem.

The utility model provides a kind of high-voltage switch gear oil sump low pressure casting die, including upper die and lower die and liter liquid pour Mouth basin；Lower mould both ends are respectively equipped with locating dowel；Rise liquid pouring basin to be fixedly installed on lower mould by locating dowel, upper mould is arranged at liter The upper surface of liquid pouring basin, and be fixedly connected with both ends locating dowel；Liter liquid pouring basin is equipped with interconnected with lower mould bottom Cast gate.

Further, in addition to left slider and right sliding block；Left slider is arranged on the left of liter liquid pouring basin, and left slider side is also Provided with left slider bindiny mechanism；Right sliding block is arranged on the right side of liter liquid pouring basin, and right sliding block side is additionally provided with right sliding block bindiny mechanism.

Further, in addition to Shang Mo bindiny mechanisms and knocking from up die mechanism；Shang Mo bindiny mechanisms are respectively arranged at mould Both ends, knocking from up die structure setting between the Shang Mo bindiny mechanisms of both ends, and positioned at upper mould top surface on.

Further, knocking from up die mechanism includes push rod fixed plate, push rod liftout plate, push rod and release link；Push rod is consolidated Fixed board is arranged at upper mould upper end by push rod；Push rod liftout plate is arranged at the upper surface of push rod fixed plate；Release link is arranged at On mould, and it is connected with push rod liftout plate.

Further, upper mould centre position is provided with artificial air-cooled thermal field adjusting cavity；Upper mould is provided with multiple steam vents.

Further, in addition to venting plug；Venting plug is arranged at the filling position and exhaust dead angle of mould, and blocks institute State steam vent.

Further, also include screen pack, screen pack is arranged on cast gate, and positioned at rise liquid pouring basin and lower mould it Between.

Further, it is preset with pressing plate groove in lower mould, upper mould and right sliding block bindiny mechanism and left slider bindiny mechanism； High-voltage switch gear oil sump low pressure casting die is fixed on low-pressure die casting plant by pressing plate groove by tommyhead bolt.

Further, high-voltage switch gear oil sump low pressure casting die is metal type dies.

By using above technical scheme, compared with existing high-voltage switch gear oil sump is using sand core casting die, this reality With the high-voltage switch gear oil sump low pressure casting mould structure of new offer is simple, convenience quick for installation, labor strength are low, labor Dynamic condition is good, and yield rate is high, and saving the energy without core reduces environmental pollution；It is simultaneously low using metal mold high-voltage switch gear oil sump The cast structure produced of pressure casting mould is fine and close, clear-cut, surfaces externally and internally is bright and clean, stable mechanical performance, dimensionally stable one Cause property is good, and blank allowance in light weight is few, and production efficiency is high, and product appearance quality is good, particularly improves the inspection of SF6 Air leakage detectors Test and product qualified rate is tested in explosion.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

Below with reference to accompanying drawing, the utility model is described in further detail：

Fig. 1 is a kind of high-voltage switch gear oil sump low pressure casting die phantom of the utility model；

Fig. 2 is mold forming portion structural representation under the utility model；

Fig. 3 is mold forming portion filtering net installation schematic diagram under the utility model；

Fig. 4 is the utility model upper die forming portion structural representation；

Fig. 5 is sand circle feeding head mounting structure schematic diagram on the utility model；

Fig. 6 is that the utility model rises liquid pouring basin and flow distribution plate mounting structure schematic diagram.

In figure：1st, lower mould pouring basin；2nd, pouring basin flow distribution plate；3rd, lower mould；4th, upper mould；5th, Shang Mo bindiny mechanisms；6th, upper mould Ejecting mechanism；7th, left slider attachment structure；8th, left slider；9th, locating dowel；10th, right sliding block；11st, right sliding block attachment structure；12nd, mistake Filter screen；13rd, venting plug；14th, push rod；15th, release link；16th, push rod fixed plate；17th, push rod liftout plate；18th, artificial air-cooled thermal field Adjusting cavity；19th, recessed edge；20th, locating piece；21st, groove；22nd, protuberance；23rd, mounting seat；24th, mounting seat；25th, mounting seat；26、 Rise liquid pouring basin；27th, cavity；28th, it is recessed go out portion；29th, fixed seat；30th, forming part.

Embodiment

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in Figures 1 to 6, the utility model provides a kind of high-voltage switch gear oil sump low pressure casting die, including upper mould 4th, lower mould 3 and liter liquid pouring basin 26；The lower both ends of mould 3 are respectively equipped with locating dowel 9；Liquid pouring basin 26 is risen to fix by locating dowel 9 It is arranged on lower mould 3, upper mould 4 is arranged at a liter upper surface for liquid pouring basin 26, and is fixedly connected with both ends locating dowel 9；Liquid is risen to pour Mouth basin 26 is equipped with interconnected cast gate with the lower bottom of mould 3, can be poured into raw material in forming cavity from cast gate by cast gate；This The scheme that utility model provides can mitigate blank weight, improve product mechanical performance and internal look quality, reduce cost, carry Meet the performance specification of high-voltage switch gear oil sump particular job, convenient disassembly for products air tightness.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, in the present embodiment, rise between liquid pouring basin 26 and lower mould 3 Provided with pouring basin flow distribution plate 2, pouring basin flow distribution plate 2 is provided with through hole；Through hole connects with cast gate and lower mould pouring basin 1 respectively, leads to Cross using the lower mould pouring basin 1 of the connection of pouring basin flow distribution plate 2, cast efficiency can be heightened, improve moulding by casting effect.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, it is low that the utility model provides a kind of high-voltage switch gear oil sump Pressure casting mould also includes left slider 8 and right sliding block 10；Left slider 8 is arranged at a liter left side for liquid pouring basin 26, the side of left slider 8 It is additionally provided with left slider bindiny mechanism 7；Right sliding block 10 is arranged at the right side of liter liquid pouring basin 26, and the side of right sliding block 26 is additionally provided with right cunning Block bindiny mechanism 11；The pressing plate groove that lower mould 3, upper mould 4 and left slider bindiny mechanism 7 and right sliding block bindiny mechanism 11 reserve passes through Tommyhead bolt is separately fixed on low-pressure die casting plant, further, left slider 8, right sliding block 10, left slider attachment structure 7 and Right sliding block bindiny mechanism 11 is metalwork.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, in the present embodiment, locating piece is additionally provided with locating dowel 9 20, upper mould 4 is recessed along 19 provided with being adapted with locating piece 20；So, upper mould 4 is arranged at the upper of liter liquid pouring basin 26 End face is simultaneously fixedly connected by recessed along 19 with locating dowel 9, to improve steadiness, avoids the liter liquid pouring basin 26 in casting process from going out Now rock, so as to influence moulding by casting quality.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, it is low that the utility model provides a kind of high-voltage switch gear oil sump Pressure casting mould also includes Shang Mo bindiny mechanisms 5 and knocking from up die mechanism 6；Shang Mo bindiny mechanisms 5 are respectively arranged at the upper end of mould 4 The both ends in face, for connecting and positioning upper mould 4, while spacing mandril fixed plate 16 and push rod liftout plate 17 can be played a part of； Knocking from up die structure 6 is arranged between both ends Shang Mo bindiny mechanisms 5, and on the top surface of upper mould 4.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, in the present embodiment, knocking from up die mechanism includes push rod Fixed plate 16, push rod liftout plate 17, push rod 14 and release link 15；Push rod fixed plate 16 is arranged at the upper of upper mould 4 by push rod 14 End；Push rod liftout plate 17 is arranged at the upper surface of push rod fixed plate 16；Release link 15 is arranged on mould 4, and is ejected with push rod Plate 17 connects；Further, push rod and release link are uniformly installed according to product structure.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, in the present embodiment, the upper centre position of mould 4 is provided with artificial wind Cold thermal field adjusting cavity 18, gold is dug up according to shaping position shape uniform wall thickness in upper mould reverse side with reference to oil sump casting technique Category forms artificial air-cooled thermal field adjusting cavity 18；Correspondingly, multiple steam vents, the artificial air-cooled temperature in steam vent edge are provided with upper mould 4 The circumferential annular of field control chamber 18 is set.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, it is low that the utility model provides a kind of high-voltage switch gear oil sump Pressure casting mould also includes venting plug 13；Venting plug 13 is arranged at the filling position and exhaust dead angle of mould 4, and blocks exhaust Hole.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, in the present embodiment, lower mould is according to metal-mold low-pressure casting Process, rise liquid cast gate basin bottom part be provided with two circular cast gates；The lower bottom of mould 3 is provided with two circular cast gates；Two rise liquid The cast gate of cast gate basin bottom part it is mutually corresponding with the cast gate of two lower bottoms of mould 3 and be interconnected set.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, it is low that the utility model provides a kind of high-voltage switch gear oil sump Pressure casting mould also includes screen pack 12, and screen pack 12 is arranged on cast gate, and positioned at rise liquid pouring basin 26 and lower mould 3 it Between, it is that can filter out debris for pouring into a mould raw material, avoids blocking or debris etc. from influenceing Forming Quality.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, in the present embodiment, upper mould 4 is provided with and a liter liquid pouring basin 26 fixed seats 29 being adapted；Cast gate is arranged at the bottom of fixed seat 29；Fixed seat 29 is between both sides locating dowel 9；Positioning Groove 21 is additionally provided with seat 29；The setting of fixed seat 29 can effectively improve the positioning between liter liquid pouring basin 26 and lower mould 3, carry High stability.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, in the present embodiment, rise be provided with liquid pouring basin 26 it is recessed go out Portion 28；The profile for rising liquid pouring basin 26 is adapted with fixed seat 29, so can mutually be assembled, and it is recessed go out portion 28 and groove 21 It is adapted, so as to realize spacing and fixed effect；The surrounding for rising liquid pouring basin 26 is respectively equipped with mounting seat 23,24,25；Installation Cavity 27 has been recessed on seat 23,24,25, the intensity of mounting seat can have so been improved, be easily installed.

Preferably, with reference to such scheme, as shown in Figures 1 to 6, it is low that the utility model provides a kind of high-voltage switch gear oil sump Pressure casting mould also includes forming part 30, and forming part 30 is provided with protuberance 22；The structure of forming part 30 is with rising liquid pouring basin 26 Inner-cavity structure be adapted, be easy to mutually assemble；Protuberance 22 with it is recessed go out portion 28 be adapted, so as to realize spacing and fixed work With.

Preferably, with reference to such scheme, in the present embodiment, lower mould, upper mould and right sliding block bindiny mechanism and left slider connect Pressing plate groove is preset with connection mechanism；High-voltage switch gear oil sump low pressure casting die is fixed on low by pressing plate groove by tommyhead bolt On die casting manufacturing apparatus.

Preferably, with reference to such scheme, in the present embodiment, high-voltage switch gear oil sump low pressure casting die is metal pattern die Tool；Specifically, lower mould, locating dowel, left slider, right sliding block, upper mould, knocking from up die mechanism and Shang Mo bindiny mechanisms are metal Type structure；The inner surface formation casting profile bottom of mould, metal mold left slider, the right sliding block inner surface of metal mold are formed under metal mold The outer surface of mould forms core cavity on casting monnolithic case, metal mold；According to the process of metal-mold low-pressure casting, to protect Card casting order fills type and the special liter liquid pouring basin and flow distribution plate of Feeding design, and composition particular manufacturing craft is overall.

By using above technical scheme, compared with existing high-voltage switch gear oil sump is using sand core casting die, this reality With the high-voltage switch gear oil sump low pressure casting mould structure of new offer is simple, convenience quick for installation, labor strength are low, labor Dynamic condition is good, and yield rate is high, and saving the energy without core reduces environmental pollution；It is simultaneously low using metal mold high-voltage switch gear oil sump The cast structure produced of pressure casting mould is fine and close, clear-cut, surfaces externally and internally is bright and clean, stable mechanical performance, dimensionally stable one Cause property is good, and blank allowance in light weight is few, and production efficiency is high, and product appearance quality is good, particularly improves the inspection of SF6 Air leakage detectors Test and product qualified rate is tested in explosion.

It is described above, preferred embodiment only of the present utility model, any formal limit is not done to the utility model System.Any those skilled in the art, in the case where not departing from technical solutions of the utility model ambit, all using above-mentioned The technology contents make many possible changes and modifications to technical solutions of the utility model, or be revised as equivalent variations etc. Imitate embodiment.Therefore, every content without departing from technical solutions of the utility model, according to technology of the present utility model to real above Any change modification, equivalent variations and modification that example is made are applied, belongs to the protection domain of the technical program.

Claims (9)

1. a kind of high-voltage switch gear oil sump low pressure casting die, it is characterised in that including upper die and lower die and rise liquid pouring basin； The lower mould both ends are respectively equipped with locating dowel；Described liter of liquid pouring basin is fixedly installed on the lower mould by the locating dowel, The upper mould is arranged at the upper surface of described liter of liquid pouring basin, and is fixedly connected with locating dowel described in both ends；Described liter of liquid cast gate Basin is equipped with interconnected cast gate with the lower mould bottom.

2. high-voltage switch gear oil sump low pressure casting die according to claim 1, it is characterised in that also including left slider and Right sliding block；The left slider is arranged on the left of described liter of liquid pouring basin, and the left slider side is additionally provided with left slider bindiny mechanism； The right sliding block is arranged on the right side of described liter of liquid pouring basin, and the right sliding block side is additionally provided with right sliding block bindiny mechanism.

3. high-voltage switch gear oil sump low pressure casting die according to claim 1, it is characterised in that also connected including upper mould Mechanism and knocking from up die mechanism；The Shang Mo bindiny mechanisms are respectively arranged at the both ends of the upper mould, the knocking from up die structure It is arranged between Shang Mo bindiny mechanisms described in both ends, and on the top surface of the upper mould.

4. high-voltage switch gear oil sump low pressure casting die according to claim 3, it is characterised in that the knocking from up die machine Structure includes push rod fixed plate, push rod liftout plate, push rod and release link；The push rod fixed plate is arranged at institute by the push rod State mould upper end；The push rod liftout plate is arranged at the upper surface of the push rod fixed plate；The release link is arranged on described On mould, and it is connected with the push rod liftout plate.

5. high-voltage switch gear oil sump low pressure casting die according to claim 1, it is characterised in that the upper mould interposition Artificial air-cooled thermal field adjusting cavity is installed；The upper mould is provided with multiple steam vents.

6. high-voltage switch gear oil sump low pressure casting die according to claim 5, it is characterised in that also including venting plug； The venting plug is arranged at the filling position and exhaust dead angle of the upper mould, and blocks the steam vent.

7. high-voltage switch gear oil sump low pressure casting die according to claim 1, it is characterised in that also include filtering Net, the screen pack are arranged on the cast gate, and between described liter of liquid pouring basin and the lower mould.

8. high-voltage switch gear oil sump low pressure casting die according to claim 1, it is characterised in that the lower mould, upper mould And it is preset with pressing plate groove in right sliding block bindiny mechanism and left slider bindiny mechanism；The pressing plate groove is by tommyhead bolt by institute High-voltage switch gear oil sump low pressure casting die is stated to be fixed on low-pressure die casting plant.

9. the high-voltage switch gear oil sump low pressure casting die according to any one of claim 1 to 8, it is characterised in that described High-voltage switch gear oil sump low pressure casting die is metal type dies.