CN205217935U - Lightning grounding encircles mould - Google Patents

Abstract

The utility model provides a lightning grounding encircles mould, belong to power transmission for the system casting of lightning grounding ring use the mould. By upper and lower module one -tenth, upward the mould is connected firmly by cylinder and the apron that the diameter is bigger and constitutes, has the vertical perforating hole of a watering molten iron on this apron, upward still is fixed with the location contact pin more than 2 on the mould, the lower mould is connected firmly by a cylinder to be formed on the bottom plate, and the equipartition has a post core hole on this cylinder hole circumference, and each post core is downthehole to be equipped with a post core, and all post cores connect firmly on this bottom plate, and the diameter of cylindrical post core is lighter than the diameter in post core hole, and the top surface and the cylinder top surface of all post cores flush, and corresponds on the cylinder top surface to open and have as supplying the location jack of location contact pin male more than 2. The getter chamber structure has a simple structure and a low manufacturing cost. The plug -in type earth connection of this mould production need not weld, and the screwing does not adopt and cut straightly the formula connected mode, conveniently realizes batch production.

Description

Lightning protection ring mould

Technical field

The utility model relates to making mould, the particularly power transmission system lightning protection ring casting molds of lightning protection line.

Background technology

Large in order to change grounding resistance, the situation of thunder and lightning release function difference, the present inventor once made and adopted netted earth connection.Many initial earth connections are welded on circular boop surface, like this, although meet connection request.But because first getting the raw materials ready as steel plate, cut out, punching press and be curled into circular etc., so procedure is many, difficulty difficult point is large, in addition these work often need having the place of stamping machine and welding equipment to complete, conditional request is high, and after many branch lines are welded into entirety, bring difficulty to assembling, transport.

The main points of pouring type technique are molds, no matter be founding or punching block processing and fabricating, have shaping, charging (molten iron) and release problems.For coordinating cement bar cramp tight, be unable to do without annulus or circular boop shape, to this, the present inventor considers as shown in Figure 1 a, 1 b, on circumference and opening flap, stays screw screwing dead earth line.

But due to:

1, each great circle and aperture vertical direction each other, the not easily demoulding;

2, more specifically, because of circumference relationship, each branched line aperture towards in continuous change, so, more increase difficulty.

Lateral opening is become vertical perforate, becomes socket connection mode, as shown in Figure 2 a.

Fig. 2 a illustrates that circular ring type is example, and plug-in type annulus periphery is with multiple vertical cylindrical void; Fig. 2 b illustrates, ground wire from the bottom up (as arrow) inserts the multiple vertical holes on annulus outer surface, becomes net like ground configurations.

Inserting bonding jumper is 10mm, so it is also 10mm that vertical holes internal diameter designs and produces, becomes to each other and combines closely, add the height of annulus 100mm, be enough to metal strips for grounding line to insert firmly fastening.

Utility model content

The purpose of this utility model is to provide a kind of lightning protection ring mould, with the disposable casting completing above-mentioned plug-in type ground loop.

The purpose of this utility model is achieved in that a kind of lightning protection ring mould, be made up of upper die and lower die, upper die structure is: patrix cylinder end face is fixedly connected with a diameter tubular patrix cover plate larger than patrix cylinder diameter, patrix cylinder and patrix cover plate are positioned on same axial line, patrix cover plate has a vertical through hole for pouring molten iron, and patrix plate is fixed with the positioning insertion pin of more than 2 from the outward extending annular bottom surface in patrix cylinder position;

Described lower die structure is: cylinder bottom surface is fixedly connected with base plate, cylinder endoporus is circumferentially uniform has the vertically through post core bore to this base plate, a post core is provided with in each post core bore, all post cores connect firmly on which floor plate, and the diameter of tubular post core is less than the diameter of post core bore, the end face of all post cores flushes with cylinder end face, and the corresponding positioning jack of more than 2 had as inserting for positioning insertion pin on cylinder end face;

The cylindrical diameter of above-mentioned patrix is less than the cylindrical internal diameter of counterdie, and the cylindrical height of patrix is greater than the cylindrical endoporus height of counterdie; Directly over the gap of above-mentioned vertical through hole after patrix and counterdie matched moulds between patrix cylinder and counterdie cylinder.

The patrix cylinder end face of described patrix is provided with patrix handle.

Described positioning insertion pin is 2 ~ 4.

The center of circle of described post core bore is positioned at cylinder endoporus circumferentially or be positioned at and be greater than this cylinder diameter of bore circumferentially.

Cylindrical diameter × the height of described patrix is 300mm × 115mm, and the cylindrical diameter of bore of counterdie is 308mm, and endoporus height is 100mm, and post core bore diameter is 20mm, and post core diameter is 10mm.

Described post core bore is 12.

Diameter × the height of described patrix cover plate is 350mm × 50mm, and the thickness of the base plate of counterdie is 10mm.

Described patrix cylinder and patrix cover plate integrated molding; The cylinder of counterdie and base plate and post core integrated molding.

One funneling notch is arranged at described vertical through hole top.

The beneficial effects of the utility model are:

1, structure is simple, cost of manufacture is low.The plug-in type ground loop that this mould is produced need not weld, and not screwing, have employed direct insertion connected mode, and can realize batch production.

2, after upper die and lower die matched moulds, the vertical through hole of molten iron from patrix is injected, molten iron flows in patrix cylinder and counterdie cylinder annular gap therebetween and flows in the gap between post core and post core bore, and after cooling, one-shot forming is made plug-in type ground loop and (participated in Fig. 2 a).

Feature of the present utility model will be set forth in a specific embodiment further.

Accompanying drawing explanation

Fig. 1 a, Fig. 1 b are the schematic diagram (non-connection metal bar) of circular ring type earth connection and circular boop formula earth connection respectively.

Fig. 2 a is the plug-in type ground loop adopting die casting and obtain.

Fig. 2 b is the schematic diagram after Fig. 2 a inserts earth connection (i.e. bonding jumper).

Fig. 3 is the upper die and lower die split schematic diagram of this mould.

Fig. 4 is the schematic diagram after the matched moulds of upper die and lower die shown in Fig. 3.

Fig. 4 a is the schematic diagram of the core bore of post shown in Fig. 4.

Fig. 4 b is the schematic diagram of the core of post shown in Fig. 4.

Fig. 5 is molten iron flow direction schematic diagram when casting after the matched moulds of upper die and lower die shown in Fig. 3.

Detailed description of the invention

Fig. 3 illustrates, mould is divided into upper die and lower die structure, the implication of sequence number in Fig. 3, Fig. 4: 1, smelting iron water inlet funnel and conveyance conduit (as dotted line); 2, patrix cover plate, with patrix cylinder 3(diameter 300mm) and post core combine as a whole, post core can limit molten iron inner side; 4, positioning insertion pin (two or three or four), with this fixing upper and lower mould position; 5, corresponding with 4 positioning jack, when patrix puts down, two (or three or four) contact pins must insert in respective hole, can lock upper and lower mould position, to carry out normal work; 6, (counterdie) cylinder, solid line oblique with 20mm() base plate 10 of thickness combines as a whole, diameter of bore 308mm, its effect restriction molten iron outer fix; 7, patrix handle (connecting firmly on patrix cylinder end face); 8, post core.

Fig. 3, Fig. 4 illustrate this lightning protection ring mould, be made up of upper die and lower die, upper die structure is: patrix cylinder 3 end face is fixedly connected with a diameter tubular patrix cover plate 2 larger than patrix cylinder diameter, patrix cylinder 3 and patrix cover plate 2 are positioned on same axial line, patrix cover plate 2 has a vertical through hole for pouring molten iron, and patrix plate is fixed with the positioning insertion pin 4 of more than 2 from the outward extending annular bottom surface in patrix cylinder position;

Lower die structure is: cylinder 6 bottom surface is fixedly connected with base plate 9, cylinder 6 endoporus is circumferentially uniform has the vertically through post core bore to this base plate, a post core 8 is provided with in each post core bore, all post cores 8 connect firmly on this base plate 9, and the diameter of tubular post core 8 is less than the diameter of post core bore 10, the end face of all post cores 8 flushes with cylinder 6 end face, and the corresponding positioning jack 5 of more than 2 had as inserting for positioning insertion pin 4 on cylinder end face;

The diameter of above-mentioned patrix cylinder 3 is less than the internal diameter of the cylinder 6 of counterdie, and the height of patrix cylinder 3 is greater than the endoporus height of counterdie cylinder 6; Directly over the gap of above-mentioned vertical through hole after patrix and counterdie matched moulds between patrix cylinder 3 and counterdie cylinder 6.

The center of circle of post core bore is positioned at cylinder 6 endoporus circumferentially or be positioned at and be greater than this cylinder 6 diameter of bore circumferentially.Patrix cylinder 3 and patrix cover plate 2 integrated molding; The cylinder 6 of counterdie and base plate 9 and post core 8 integrated molding.

Diameter × the height of patrix cylinder 3 is 300mm × 115mm, and the diameter of bore of counterdie cylinder 6 is 308mm, and endoporus height is 100mm, and post core bore 10 diameter is 20mm, and post core 8 diameter is 10mm.Diameter × the height of patrix cover plate 2 is 350mm × 50mm, and the thickness of the base plate 9 of counterdie is 10mm.Post core bore is 12.

Can see from patrix cylinder diameter 300mm and counterdie cylinder diameter of bore 308mm: 308-300=8, this is the annular gap (wide 8mm) between two moulds, to flow between annular gap accumulation to allow the iron and steel liquid of fusing, fill, after demoulding cooling, just in time form the thickness of ground connection annulus.

Fig. 4 a, Fig. 4 b illustrate, wherein 9 is that post core (Fig. 4 a is dotted line in encirclement, and Fig. 4 b independently draws as solid line) is uprightly connected with baffle plate, and post core surrounding has 5mm peripheral gap, add 10mm post core bore, therefore overall diameter is 20mm, form annular space, flow into allow metal liquid and assemble, after cooling and demolding, post core leaves, and becomes vertical cylindrical void, and the molten metal of gathering becomes outer wall; In addition, after upper and lower mould matched moulds, cylinder 7 end face has 5mm gap, in order to molten metal condensation, becomes ground wire baffle plate after cooling.

Metal liquid will be built, and must flow through path, and for clarity, its structure and flow condition draw by we, ask for an interview Fig. 5.

After upper die and lower die install, enter lightning protection ring and make state, first utilize high-temperature electric heat stove that iron filings steel scrap etc. is fused into iron and steel liquid (or claiming molten iron), and poured into (a funneling notch is arranged at vertical through hole top) in the funneling iron liquid inlet channel of the cover plate of patrix shown in Fig. 52, after iron liquid enters this groove, again along the Flows dissecting dotted line 11 shown in Fig. 5, flow to the annular gap 12 that upper and lower mould is formed on the one hand, be diverted to the periphery of 10mm post core on the other hand, carry out the gathering of iron liquid and build.

Now, outside looks at upper and lower mould height of column difference and effect thereof again.Visible at Fig. 3, the total height 120mm of counterdie, the thick 20mm of base plate, then in, outage degree is: 120-20=100(mm);

And patrix is except top cover 50mm, height of column is 115mm, therefore after upper and lower mould merges, height of column: 115-100=15(mm);

Namely column body exceeds 15mm than lower prop, and such difference in height has two effects:

1, peep hole is formed.In enforcement annulus makes, build, while the rise position of liquid can be watched from the gap of the discrepancy in elevation, when rising to 90% position on ring edge, just stop passing through liquid, when injection metal liquid on the way all flow and put in place, just in time fill up annulus vacancy, reach 100mm height.

2, advantageous heat dissipation cooling.When iron and steel liquid fills hollow arbor braid, if totally-enclosed, must cool slow, but after having the neutral position of this discrepancy in elevation, greatly be conducive to high-temp liquid to distribute heat in air.

According to practical experience, pass through liquid about 10 minutes in stopping, molten iron progressively variable color, cool, solidify, shaping, patrix can be taken out through handle subsequently, then unload and build object, namely complete the making (as shown in Figure 2 a) of being with vertical cylindrical void becket.

Subsequently, the successful annulus surrounding vertical holes of casting inserts 1000mm length, and through crimping the earth connection (as shown in Figure 2 b) of bending, then the net like lightning protection line of complete set just completes, can scene be taken to, coordinate cement electric pole assembling, play effective lightning protection effect.

Designing and producing by annulus, we also can see several features of this metal steel mold:

The first, 10mm post core connects firmly on the base plate of counterdie, so, after patrix is deviate from from counterdie, by forming the vertical cylindrical void of bottom opening, being convenient to ground wire and inserting from the bottom up.

The second, after upper and lower mould matched moulds, the space having 5mm high between counterdie cylinder end face and patrix cover plate bottom surface, be convenient to iron liquid and fill, form ground wire baffle plate, after ground wire inserts from the bottom up, ground wire can not be lifted one's head, both attractive in appearance, specification again.

3rd, upper and lower mould oeverall quality is about 40kg, and finished product annulus (shown in Fig. 2 a) about 2kg, i.e. great disparity 20 times.Thus, both can increase mechanical strength, and can high temperature attack be born again, namely, in molten metal liquid is built, its volume and quality official post temperature great disparity are very large, and namely punching block does not reach melting value far away, so the damaging influence such as can not allow that punching block is melted, therefore this punching block can Long-Time Service.

4th, form gap (leaving gap between patrix cover plate bottom surface and counterdie cylinder end face) after upper and lower mould matched moulds, be both convenient to observation, charging, and be conducive to again building body formed heat radiation, kill two birds with one stone.

5th, the band vertical bar cellular type metal ring mould of this patent design, does not laterally loose core and waits device, the good demoulding of Gu Te, has both reached making annulus object, easy to use and flexible again.

6th, molten steel is cast, and has injection machine to use unlike plastic products, therefore can only design and manufacture on one's own account.And this punching block grinds studies carefully design, really achieve very ten-strike.

Finally; because this patent is Mold Making mode; therefore the batch production of being with vertical cylindrical void metal ring can be formed; the place that supply need reduce earth resistance in a large number uses; to the loaded down with trivial details of welding processing respectively be reduced and mix, and progressively move towards standardization and scale, both improved the security performance of lightning protection thus; can economic benefit be produced again, therefore be worth large scale application.

Claims (9)

1. a lightning protection ring mould, be made up of upper die and lower die, it is characterized in that, described upper die structure is: patrix cylinder (3) end face is fixedly connected with a diameter tubular patrix cover plate (2) larger than patrix cylinder diameter, patrix cylinder (3) and patrix cover plate (2) are positioned on same axial line, patrix cover plate (2) has a vertical through hole for pouring molten iron, and patrix plate is fixed with the positioning insertion pin (4) of more than 2 from the outward extending annular bottom surface in patrix cylinder position;

Described lower die structure is: cylinder (6) bottom surface is fixedly connected with base plate (9), cylinder (6) endoporus is circumferentially uniform has the vertically through post core bore to this base plate, a post core (8) is provided with in each post core bore, all post cores (8) connect firmly on this base plate (9), and the diameter of tubular post core (8) is less than the diameter of post core bore (10), the end face of all post cores (8) flushes with cylinder (6) end face, and on cylinder end face, correspondence has the positioning jack (5) of more than 2 being used as to insert for positioning insertion pin (4);

The diameter of above-mentioned patrix cylinder (3) is less than the internal diameter of the cylinder (6) of counterdie, and the height of patrix cylinder (3) is greater than the endoporus height of counterdie cylinder (6); Above-mentioned vertical through hole is positioned at directly over the gap after patrix and counterdie matched moulds between patrix cylinder (3) and counterdie cylinder (6).

2. a kind of lightning protection ring mould according to claim 1, is characterized in that, patrix cylinder (3) end face of described patrix is provided with patrix handle (7).

3. a kind of lightning protection ring mould according to claim 2, it is characterized in that, described positioning insertion pin (4) is 2 ~ 4.

4. a kind of lightning protection ring mould according to claim 3, is characterized in that, the center of circle of described post core bore is positioned at cylinder (6) endoporus circumferentially or be positioned at and be greater than this cylinder (6) diameter of bore circumferentially.

5. a kind of lightning protection ring mould according to claim 4, it is characterized in that, diameter × the height of described patrix cylinder (3) is 300mm × 115mm, the diameter of bore of counterdie cylinder (6) is 308mm, endoporus height is 100mm, post core bore (10) diameter is 20mm, and post core (8) diameter is 10mm.

6. a kind of lightning protection ring mould according to claim 5, it is characterized in that, described post core bore is 12.

7. a kind of lightning protection ring mould according to claim 6, is characterized in that, the diameter × height of described patrix cover plate (2) is 350mm × 50mm, and the thickness of the base plate (9) of counterdie is 10mm.

8. a kind of lightning protection ring mould according to claim 7, is characterized in that, described patrix cylinder (3) and patrix cover plate (2) integrated molding; The cylinder (6) of counterdie and base plate (9) and post core (8) integrated molding.

9. a kind of lightning protection ring mould according to claim 8, is characterized in that, a funneling notch is arranged at described vertical through hole top.