CN214488749U

CN214488749U - Lightweight high-strength traction turbine casing casting and pouring system

Info

Publication number: CN214488749U
Application number: CN202023327144.8U
Authority: CN
Inventors: 徐孟兰
Original assignee: Suzhou Cmb Machinery Co ltd
Current assignee: Suzhou Cmb Machinery Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-26
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a lightweight high strength hauls turbine casing casting gating system, it includes the pouring basin, sets up the stick of directly watering of pouring basin bottom, certainly a pair of first cross gate that the stick of directly watering shunted to both sides, from two a pair of second cross gate that the terminal bending extension of first cross gate set up, follow two on the second cross gate symmetry intercommunication to two sets of ingates in the die cavity, set up a plurality of first rising heads and the setting of die cavity top are in the second rising head in the die cavity fills the terminal surface outside of type. The utility model discloses can produce the lightweight high strength driving sheave casing of thin wall type, and the outward appearance is flawless, and product quality is high.

Description

Lightweight high-strength traction turbine casing casting and pouring system

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of the hauler, especially, relate to a lightweight high strength haulage turbine casing casting gating system.

[ background of the invention ]

The traction machine is power equipment of an elevator, and is also called an elevator main machine. The function is to transport and transmit power to run the elevators, and each elevator is provided with a traction machine. Most of the existing traction turbines are designed as initial products, under the same safety factor requirement, the whole traction turbine is thick, large and heavy, the traveling requirements of customers and people are difficult to meet in the design requirement of modern high-rise residences, along with the rapid development of economy in China, the urbanization process also starts to be accelerated continuously, high-rise buildings start to be increased, and therefore the number of elevators in the high-rise buildings also starts to be increased rapidly. In order to really ensure the effectiveness and stability of the high-rise residential elevator technology, the lightweight high-power high-speed traction machine of the high-rise residential elevator is developed into a basic and core framework design for the modernization development of the elevator.

After the light-weight design of the traction sheave shell is realized, the wall thickness of the plate wall is necessarily reduced to form a thin-wall plate body, and the defects of sand holes, bubbles and the like are easy to occur in the casting process.

Therefore, it is necessary to provide a new lightweight high strength casting gating system for a casing of a traction turbine to solve the above technical problems.

[ Utility model ] content

The utility model aims to provide a lightweight high strength tows turbine casing casting gating system can produce the lightweight high strength traction sheave casing of thin wall type, and the outward appearance is flawless, and product quality is high.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a casting pouring system for a lightweight high-strength traction turbine casing comprises a sprue cup, a straight pouring rod arranged at the bottom of the sprue cup, a pair of first cross runners which flow out from the straight pouring rod to two sides, a pair of second cross runners which are bent and extended from the tail ends of the two first cross runners, two groups of ingates which are symmetrically communicated to a cavity from the two second cross runners, a plurality of first risers arranged above the cavity and second risers arranged on the outer side of the filling tail end surface of the cavity.

Further, the flow ratio of the straight pouring bar, the first runner, the second runner and the inner gate section is 1:1:1: 1.8.

Further, the two groups of inner gates comprise a first inner gate entering water from the front end surface of the shell, a pair of second inner gates entering water from the outer side surface of the shell, and a pair of third inner gates entering water from two sides of the rear end surface of the shell.

Furthermore, the first feeder comprises a middle feeder positioned above the middle area of the casing and a plurality of edge feeders arranged at the edge of the casing around the middle feeder.

Furthermore, the edge dead heads are provided with four.

Further, the second riser is arranged in the middle of the surface, far away from the rear end of the straight casting rod, of the machine shell.

Furthermore, a branch pouring channel extends from the tail end of one of the second transverse pouring channels.

Further, a riser sprue for supplying molten iron to the second riser is arranged at the tail end of the branch pouring channel.

Furthermore, two the second cross runners are provided with filter assemblies for filtering scum and impurities in molten iron.

Compared with the prior art, the utility model relates to a lightweight high strength tows turbine casing casting gating system's beneficial effect to lie in: according to the thin-wall structure of the casing of the traction turbine, a symmetrical pouring gate water inlet design is adopted, on one hand, the rapid and stable filling of the large-diameter thin-wall part can be effectively guaranteed, the problems of cold shut and sand washing and sand hole of the thin-wall part are solved, on the other hand, the pouring efficiency is greatly improved, the rapid filling is realized, the whole pouring process is shortest in molten iron stroke, the pouring time can be synchronously reduced, and the rapid and efficient filling of the thin-wall part is guaranteed.

[ description of the drawings ]

Fig. 1 is a schematic top view of an embodiment of the present invention;

fig. 2 is a schematic perspective view of an embodiment of the present invention;

the figures in the drawings represent:

100 casting and pouring systems for lightweight high-strength traction turbine casings; 101 a housing;

1, a pouring cup; 2, directly watering the rod; 3 a first runner; 4 a second runner; 5, forming a cavity; 6 in-gate, 61 first in-gate, 62 second in-gate, 63 third in-gate; 7 first riser, 71 middle riser, 72 edge riser; 8 a second riser; 9 parts of pouring channels; 10, riser pouring gate; 11 a filter assembly.

[ detailed description ] embodiments

The first embodiment is as follows:

referring to fig. 1-2, the embodiment of the invention is a casting and pouring system 100 for a lightweight high-strength casing of a traction turbine, which includes a sprue cup 1, a sprue bar 2 disposed at the bottom of the sprue cup 1, a pair of first runners 3 branched from the sprue bar 2 to two sides, a pair of second runners 4 bent and extended from the ends of the two first runners 3, two sets of ingates 6 symmetrically communicated with a cavity 5 from the two second runners 4, a plurality of first risers 7 disposed above the cavity 5, and second risers 8 disposed outside the filling end surfaces of the cavity 5.

The flow ratio of the straight pouring bar 2, the first runner 3, the second runner 4 and the ingate 6 section is 1:1:1: 1.8.

The two groups of ingates 6 each include a first ingate 61 which is fed with water from the front end surface of the casing 101, a pair of second ingates 62 which are fed with water from the outer side surface of the casing 101, and a pair of third ingates 63 which are fed with water from both sides of the rear end surface of the casing 101.

The first riser 7 comprises a central riser 71 located above the central region of the casing 101, a plurality of edge risers 72 arranged around the central riser 71 at the edges of the casing 101. In this embodiment, four edge risers 72 are provided.

The second riser 8 is provided at a central position of the casing 101 away from the rear end surface of the straight bar 2.

The end of one of the second runners 4 is extended with a branch runner 9. The end of the branch pouring gate 9 is provided with a riser gate 10 for supplying molten iron to the second riser 8.

The two second cross runners 4 are also provided with filter assemblies 11 for filtering scum and impurities in molten iron.

The embodiment is a casting and pouring system 100 for a lightweight high-strength traction turbine casing, and a symmetrical pouring gate water inlet design is adopted according to a thin-wall structure of the traction turbine casing, so that on one hand, the rapid and stable filling of a large-diameter thin-wall part can be effectively ensured, the problems of cold shut and sand washing sand hole of the thin-wall part are solved, on the other hand, the pouring efficiency is greatly improved, the rapid filling is realized, the whole pouring process is shortest in molten iron stroke, the pouring time can be synchronously reduced, and the rapid and efficient filling of the thin-wall part is ensured.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides a lightweight high strength tows turbine casing casting gating system which characterized in that: the sprue gate comprises a sprue cup, a straight pouring rod arranged at the bottom of the sprue cup, a pair of first cross runners which are branched from the straight pouring rod to two sides, a pair of second cross runners which are bent and extended from the tail ends of the two first cross runners, two groups of ingates which are symmetrically communicated to a cavity from the two second cross runners, a plurality of first risers arranged above the cavity and second risers arranged on the outer side of the surface of the filling tail end of the cavity.

2. The light weight high strength traction turbine casing casting gating system of claim 1, wherein: the flow ratio of the straight pouring bar, the first horizontal pouring channel, the second horizontal pouring channel and the inner pouring gate section is 1:1:1: 1.8.

3. The light weight high strength traction turbine casing casting gating system of claim 1, wherein: the two groups of inner gates comprise a first inner gate entering water from the front end surface of the shell, a pair of second inner gates entering water from the outer side surface of the shell and a pair of third inner gates entering water from two sides of the rear end surface of the shell.

4. The light weight high strength traction turbine casing casting gating system of claim 1, wherein: the first riser comprises a middle riser positioned above the middle area of the casing and a plurality of edge risers arranged at the edge of the casing around the middle riser.

5. The lightweight high strength traction turbine casing casting gating system of claim 4, wherein: the edge riser is provided with four.

6. The light weight high strength traction turbine casing casting gating system of claim 1, wherein: the second riser is arranged in the middle of the surface of the rear end, far away from the straight casting rod, of the machine shell.

7. The light weight high strength traction turbine casing casting gating system of claim 1, wherein: and a branch pouring channel extends from the tail end of one second transverse pouring channel.

8. The lightweight high strength traction turbine casing casting gating system of claim 7, wherein: and a riser sprue for supplying molten iron to the second riser is arranged at the tail end of the branch pouring gate.

9. The light weight high strength traction turbine casing casting gating system of claim 1, wherein: and two second cross runners are also provided with filter assemblies for filtering scum and impurities in molten iron.