CN205618443U

CN205618443U - Large -scale water pump vane core assembly frock

Info

Publication number: CN205618443U
Application number: CN201620253372.XU
Authority: CN
Inventors: 李佳兴; 谭鹏龙
Original assignee: Shenyang Sanke Valves Industry Co Ltd
Current assignee: Shenyang Sanke Valves Industry Co Ltd
Priority date: 2016-03-30
Filing date: 2016-03-30
Publication date: 2016-10-05
Anticipated expiration: 2026-03-30

Abstract

The patent of the utility model relates to a diameter of impeller 1000 2000mm's large -scale water pump vane core assembly frock. Its structure does, is provided with slot and the benchmark sideline corresponding with the psammitolite size on the core assembly bottom plate, and the core assembly in -process uses curved chi to proofread and correct the core position to the position of psammitolite is proofreaied and correct to the front shroud model that uses rotatable wheel hub model and can move wantonly on the platform. The utility model discloses follow the structural very strong interchangeability that has, be applicable to different grade type, the operation of the large -scale impeller core assembly of different specification. Easy operation, the location accuracy is raised the efficiency. The installation is convenient with the dismantlement, and the commonality is good, can improve the precision of core assembly process greatly.

Description

Large pump impeller core assembly frock

Technical field

This utility model relates to a kind of water pump vane casting frock, especially relates to the big of impeller diameter 1000-2000mm Type water pump vane core core assembly frock.

Background technology

In the casting process of large pump impeller, use integral sand core difficulty very big, difficult below existence during coremaking Point:

Blade plays type difficulty, if leaf curling is excessive, plays fragile core during type.

The wooden model size that integral sand core needs is bigger than normal, is unfavorable for keeping.

Self-hardening sand core is yielding in hardening process, damages, in addition it is also necessary to extra preparation stooling mold.

Integral sand core need to disposably be pounded and be made type, needs to add the core sand being blended, core by several times for small-sized puddle mixer Easily layering, affects the intensity of core.

Relative to integral sand core, assembled core has plurality of advantages: be easy to type, core box moderate dimensions, the letter of stooling mold Single, monolithic core sand using amount is little, the beneficially advantage such as workshop scheduling.

But the process of core assembly is the difficult point of this kind of technique, if it cannot be guaranteed that the precision of core after Zhuan Pei, leaf will be affected The accuracy of wheel foundry goods waterpower part, causes irretrievable loss.

Utility model content

This utility model is for above-mentioned problems of the prior art, it is provided that a kind of feed pump impeller core assembly special Frock, the problem being difficult to ensure that precision during solving core assembly, and this utility model patent procedure is simple, cheap, It is fully able to meet existing technology requirement.

The technical scheme of this utility model patent is as follows:

Large pump impeller core assembly frock, including core assembly base plate, front shroud model, wheel hub model and bracing frame, at the bottom of core assembly The groove corresponding with core size and benchmark sideline it is provided with on plate；Core assembly base plate centre is provided with bearing, and rotary shaft is pacified Being contained on bearing, wheel hub model is paralleled with core assembly base plate and is arranged on rotating shaft bearing seat, and bracing frame is placed on core assembly base plate On be positioned at the lower section of core cylindrical core print；Core assembly base plate is provided with curved chi and portable horizontal base, curved chi and core base phase Correspondence, portable horizontal base installs front shroud model, and the upper edge of front shroud model is relative with the lower surface of sand core head Should.

Described groove matches with sand core head size.

Described benchmark sideline is the quantity of point core prints such as core blade quantity.

In described bearing, hole and rotary shaft use 1:50 taper fit.

Equipped with ball bearing inside described bearing block.

Described wheel hub model both sides add lacing wire, and wheel hub model lower edge is corresponding with hub size.

Advantage of the present utility model is as follows:

1, this tool structure is simple, assembles simple, uses simple survey tool to correct after assembling.

2, use easy location and metering system, but disclosure satisfy that the required precision of core assembly.

3, cheap, highly versatile.The each of this frock checks that model can be customized by the impeller of different model, more Change, and agent structure need not be changed.

4, on the premise of the precision ensureing core assembly, accelerate the speed of core assembly, raise labour productivity.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is internal partial structurtes schematic diagram of the present utility model.

In Fig. 1,1. core assembly base plate；2. front shroud model；3. wheel hub model；4. core；5. bracing frame；The most curved chi；7. Seat；8. rotary shaft.

Detailed description of the invention

Embodiment

As shown in Figure 1-2, large pump impeller core assembly frock, including core assembly base plate 1, front shroud model 2, wheel hub model 3 And bracing frame 5, core assembly base plate 1 is provided with the groove corresponding with core size and benchmark sideline, groove is big with sand core head Little matching, benchmark sideline is the quantity of point core prints such as core blade quantity；Core assembly base plate centre is provided with bearing 7, rotates Axle 8 is arranged on bearing, and in bearing, hole and rotary shaft use 1:50 taper fit, it can be ensured that wheel hub model is in the process rotated In keep vertical state with rotary shaft all the time；Wheel hub model 3 is paralleled with core assembly base plate 1 and is arranged on rotating shaft bearing seat, Equipped with ball bearing inside bearing block, to improve the running accuracy of model, wheel hub model both sides add lacing wire, to prevent model from becoming The error that shape causes；Wheel hub model lower edge is corresponding with hub size；Bracing frame 4 is placed on core assembly base plate and is positioned at outside core The lower section of round core head；Core assembly base plate is provided with curved chi 6 and portable horizontal base, and curved chi is corresponding with core base, uses curved Whether chi correction core position on base plate is in the benchmark sideline of decile core print；On portable horizontal base, front shroud is installed Model 2, can ensure that front shroud model remains vertical with horizontal plane, the upper edge of front shroud model and the following table of sand core head Face is corresponding, uses front shroud model to check whether core profile meets drawing, core whether deformation etc..

Work process of the present utility model is as follows:

The first step: use overhead traveling crane to lift core assembly base plate to core assembly place.

Second step: rotary shaft is inserted in the bearing of core assembly base plate center.

3rd step: be hoisted on base plate by core, is placed on bracing frame below core cylindrical core print, makes core

Keep balance, and use curved chi correction position, within enabling the datum line that the core print of core is positioned on base plate.

4th step: install wheel hub model on the rotary shaft, then measure the spacing with base plate, carry out with drawing

Check, if accurate, then rotate whether inspection hub size meets drawing by this model around rotary shaft.

5th step: use front shroud model, around it, check whether core bottom and the linear of core print part meet Front shroud model.If front shroud model is with core laminating closely, then lifts other core and carry out core assembly, until core assembly completes.

This utility model is primarily adapted for use in the large-scale water pump vane of impeller diameter 1000-2000mm, but by making Supporting model is the most applicable for small impeller, and the above is the know-why that this utility model patent is used, Ren Heji Equivalent transformation on the basis of technical solutions of the utility model, within belonging to the protection domain of this utility model patent.

Claims

1. large pump impeller core assembly frock, it is characterised in that include core assembly base plate, front shroud model, wheel hub model and support Frame, core assembly base plate is provided with the groove corresponding with core size and benchmark sideline；Core assembly base plate centre is provided with bearing, Rotary shaft is arranged on bearing, and wheel hub model is paralleled with core assembly base plate and is arranged on rotating shaft bearing seat, and bracing frame is placed on The lower section of core cylindrical core print it is positioned on core assembly base plate；Core assembly base plate is provided with curved chi and portable horizontal base, curved chi and sand Core base is corresponding, and portable horizontal base is installed under front shroud model, the upper edge of front shroud model and sand core head Surface is corresponding.

Large pump impeller core assembly frock the most according to claim 1, it is characterised in that described groove and sand core head Size matches.

Large pump impeller core assembly frock the most according to claim 1, it is characterised in that described benchmark sideline is core The quantity of blade quantity etc. point core print.

Large pump impeller core assembly frock the most according to claim 1, it is characterised in that hole and rotation in described bearing Axle uses 1:50 taper fit.

Large pump impeller core assembly frock the most according to claim 1, it is characterised in that inside described bearing block equipped with Ball bearing.

Large pump impeller core assembly frock the most according to claim 1, it is characterised in that described wheel hub model both sides add If lacing wire, wheel hub model lower edge is corresponding with hub size.