CN216502219U

CN216502219U - Flywheel does not have case casting mould

Info

Publication number: CN216502219U
Application number: CN202122943752.XU
Authority: CN
Inventors: 许成哲
Original assignee: Jiangsu Yamelt Transmission Technology Co ltd
Current assignee: Jiangsu Yamelt Transmission Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-13
Anticipated expiration: 2031-11-26

Abstract

The utility model provides a flywheel box-free casting mold which comprises an upper plate and a lower plate, wherein a cavity is formed between the upper plate and the lower plate, a pouring gate is convexly arranged at the position of the upper plate corresponding to the side of the cavity, and a dead head is convexly arranged at the side corresponding to the pouring gate; an upper cross runner is convexly arranged at the position of the upper plate corresponding to the riser, one end of the upper cross runner is communicated with the riser, and the end part of the other end of the upper cross runner is closed and is not connected with the upwards-convex pouring gate; the lower surface of the lower plate is provided with a sinking port corresponding to the position of the sprue in a downward protruding manner, the lower surface of the lower plate is provided with a lower cross gate in a downward protruding manner, one end of the lower cross gate is connected with the sinking port, the lower cross gate is communicated with the inner runner of the upper cross gate and is overlapped with the upper cross gate in an up-down position, and the upper cross gate, the lower cross gate and the cavity are communicated. The utility model has reasonable structural design, can ensure that molten iron enters the cavity from the transverse direction, provides effective buffer for the molten iron when entering the cavity, provides good guide for slag collection, is convenient for collecting slag and improves the quality of castings.

Description

Flywheel does not have case casting mould

Technical Field

The utility model relates to a casting mold, in particular to the technical field of flywheel casting molds, and particularly relates to a flywheel box-free casting mold.

Background

Flywheels are disk-shaped parts with large rotational inertia, used for storing energy for crankshaft flywheel assemblies, and are important parts in engines. Currently, flywheel blanks are typically produced from castings, which are then further processed. When a casting is produced by the existing flywheel, a casting mold needs to be designed correspondingly. In the design of the existing casting mold, a pouring gate and a riser are usually designed for introducing molten iron into a mold cavity, and the riser is used for collecting slag or for shrinkage and exhaust.

For example, CN210475442U discloses a mold for reducing the defect of slag hole of an automobile flywheel, which comprises a first mold bottom plate and a second mold bottom plate, wherein the first mold bottom plate and the second mold bottom plate are vertically arranged; the first die bottom plate is provided with a flywheel cavity A, a casting mechanism cavity and positioning pin holes, the flywheel cavity A is arranged in the middle of the first die bottom plate, the casting mechanism cavity is arranged around the flywheel cavity A, and the positioning pin holes are arranged on two sides of the casting mechanism cavity; the casting mechanism cavity consists of a pouring cup, a vertical pouring gate, a horizontal pouring gate, an annular connecting sheet, an upper riser, a left riser, a right riser and an inclined pouring gate.

Although the mould is used by matching the first mould bottom plate and the second mould bottom plate, the cast molten iron can enter the molten iron from the bottom of the mould to the flywheel cavity, the molten iron is fed into the top in an auxiliary manner, the molten iron is effectively prevented from directly entering the flywheel cavity from the top to impact the cavity to damage and generate a slag hole, and the yield and the quality of products are effectively improved. However, in actual production, the molten iron still impacts the cavity when being flushed into the cavity, and meanwhile, slag is easily flushed into the cavity, so that the quality of a casting is affected. How to further improve the casting quality on the basis of the design of the existing mold becomes the difficulty of flywheel mold design.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to overcome the defects of the prior art, the utility model provides the flywheel box-free casting mold which enables molten iron to enter a cavity from the lateral direction, effectively reduces the impact on the cavity, prolongs the service life and has high casting quality.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a flywheel box-free casting mold comprises an upper plate and a lower plate folded with the upper plate, wherein a cavity is formed between the upper plate and the lower plate, a pouring gate is convexly arranged at a position of the upper plate corresponding to the side of the cavity, and a riser is convexly arranged at the side corresponding to the pouring gate; an upper cross runner is convexly arranged at the position of the upper plate corresponding to the riser, one end of the upper cross runner is communicated with the riser, and the end part of the other end of the upper cross runner is closed and is not connected with the upwards-raised pouring gate; the lower surface of the lower plate is provided with a sinking port in a downward protruding mode corresponding to the pouring gate, the lower surface of the lower plate is provided with a lower cross runner in a downward protruding mode, one end of the lower cross runner is connected with the sinking port, the lower cross runner is communicated with the pouring channel in the upper cross runner and is overlapped with the upper cross runner in the upper-lower position, and the upper cross runner, the lower cross runner and the cavity are communicated.

In the above scheme, runner, entablature, lower runner all set up in the die cavity side, and the molten iron gets into the die cavity through the runner after getting into the mould from the runner, and at the entering in-process, the direction is changed from the side direction into from by the perpendicular, has effectively cushioned the molten iron entering, avoids directly rushing into the die cavity and causes the impact damage to the die cavity. Meanwhile, through the design of a sinking port, a riser and the like, the slag can be conveniently collected.

Preferably, the cross section of the riser and the cross runner along the plane direction of the upper plate is L-shaped, wherein the riser corresponds to the transverse part of the L-shaped, and the cross runner corresponds to the longitudinal part of the L-shaped.

The height of the upper cross runner protruding out of the upper surface of the upper plate is lower than the height of the riser protruding out of the upper surface of the upper plate.

Preferably, the height of the lower cross runner protruding along the lower surface of the lower plate is lower than the height of the lower sinking port protruding along the lower surface of the lower plate. Namely, the sinking thickness of the sinking port is larger than that of the lower horizontal pouring channel, so that the molten iron can be conveniently buffered at the position of the sinking port when being poured from the pouring gate.

The flywheel box-free casting mold has the beneficial effects that the structural design is reasonable, the upper cross pouring channel and the lower cross pouring channel are reasonably designed, and through the design of the two cross pouring channels, molten iron can enter a cavity from the transverse direction and can be effectively buffered when entering the cavity, good guiding can be provided for slag collection, slag collection is facilitated, and the casting quality is improved.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

Fig. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is a perspective view of the preferred embodiment of the present invention in another orientation.

Fig. 3 is a perspective view of another preferred embodiment of the present invention.

In the figure, 1, an upper plate 2, a lower plate 3, a riser 4, an upper cross runner 5, a pouring gate 6, a sinking port 7 and a lower cross runner.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.

The flywheel flaskless casting mold shown in fig. 1 to 3 is the best embodiment of the utility model. The casting mold comprises an upper plate 1 and a lower plate 2 folded with the upper plate 1, wherein a cavity is formed between the upper plate 1 and the lower plate 2.

The upper plate 1 is provided with a pouring gate 5 protruding upwards at a position corresponding to the side of the cavity, and is provided with a riser 3 protruding upwards at the side corresponding to the pouring gate 5. An upper cross runner 4 is further arranged at the position, corresponding to the riser 3, of the upper plate 1 in a protruding mode, one end of the upper cross runner 4 is communicated with the riser 3, and the end portion of the other end of the upper cross runner 4 is closed and is not connected with the sprue 5 which is protruding upwards. The riser 3 and the upper cross runner 4 form an L shape along the plane direction of the upper plate 1, wherein the riser 3 corresponds to the transverse part of the L shape, and the upper cross runner 4 corresponds to the longitudinal part of the L shape. The height of the upper cross runner 4 protruding out of the upper surface of the upper plate 1 is lower than the height of the riser 3 protruding out of the upper surface of the upper plate 1. Relative to the upper cross gate 4, the riser 3 protrudes to a higher height, the cross gate plays a role in guiding the flow of molten iron, and the riser 3 provides a larger space for slag collection.

The gate 5 and the riser 3 are disconnected above the upper plate 1 and connected to each other in the inner runner. Correspondingly, when the molten iron enters from the pouring gate 5, the molten iron can not directly rush to the riser 3 from the pouring gate 5, but passes through the pouring gate 5, and then enters the cavity through the cross gate, and the molten iron enters from the direction perpendicular to the plate surface, and transversely enters the cavity through the buffering guide of the pouring gate 5 and the cross gate, so that the molten iron is prevented from directly rushing into the cavity.

The lower surface of the lower plate 2 is provided with a sinking port 6 corresponding to the position of the pouring gate 5 in a downward protruding manner, the lower surface of the lower plate 2 is provided with a lower cross runner 7 in a downward protruding manner, one end of the lower cross runner 7 is connected with the sinking port 6, the lower cross runner 7 is communicated with the inner runner of the upper cross runner 4 and is overlapped with the upper cross runner in an up-down position, and the upper cross runner 4, the lower cross runner 7 are communicated with the cavity. The height of the lower horizontal pouring channel 7 protruding along the lower surface of the lower plate 2 is lower than the height of the sinking port 6 protruding along the lower surface of the lower plate 2, namely the sinking thickness of the sinking port 6 is larger than that of the lower horizontal pouring channel 7, so that when molten iron is poured from the pouring gate 5, the position of the sinking port 6 is buffered in advance.

A flywheel flaskless casting mould of so design, structural design is reasonable, and runner 5, entablature 4, lower runner 7 all set up in the die cavity side, and behind the design molten iron through two runners got into the mould from runner 5, through the horizontal entering die cavity of runner, at the entering in-process, the direction was changed into from the side direction by the perpendicular and is got into, has effectively cushioned the molten iron entering, avoids directly rushing into the die cavity and causes the impact damage to the die cavity. Meanwhile, through the design of the sinking port 6, the dead head 3, the upper cross gate 7 and the lower cross gate 7 and the like, good guidance can be provided for slag collection, slag collection is facilitated, and the casting quality is improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a flywheel does not have case casting mould, includes upper plate (1) and hypoplastron (2) that folds with upper plate (1), upper plate (1) and hypoplastron (2) between have a die cavity, its characterized in that: the upper plate (1) is convexly provided with a pouring gate (5) at a position corresponding to the side of the cavity, and is convexly provided with a riser (3) at a position corresponding to the side of the pouring gate (5); an upper cross runner (4) is convexly arranged at the position, corresponding to the riser (3), of the upper plate (1), one end of the upper cross runner (4) is communicated with the riser (3), and the end part of the other end of the upper cross runner is closed and is not connected with the upwards-convex sprue (5); lower hypoplastron (2) lower surface correspond runner (5) position and have down sinking mouth (6) down, hypoplastron (2) lower surface still down the protruding cross gate (7) that has down, cross gate (7) one end is connected with sinking mouth (6) down, just lower cross gate (7) and last runner (4) inside runner intercommunication and position overlap from top to bottom, last runner (4), down cross gate (7) and die cavity intercommunication.

2. The flywheel boxless casting mold as defined in claim 1, wherein: the riser (3) and the upper cross runner (4) are L-shaped along the section of the upper plate (1) in the plane direction, wherein the riser (3) corresponds to the transverse part of the L-shaped, and the upper cross runner (4) corresponds to the longitudinal part of the L-shaped.

3. The flywheel boxless casting mold as defined in claim 2, wherein: the height of the upper cross runner (4) protruding out of the upper surface of the upper plate (1) is lower than the height of the riser (3) protruding out of the upper surface of the upper plate (1).

4. The flywheel boxless casting mold as defined in claim 1, wherein: the protruding height of the lower cross pouring gate (7) along the lower surface of the lower plate (2) is lower than the protruding height of the sinking port (6) along the lower surface of the lower plate (2).