CN216758053U - Solve excavator thrust wheel end cover casting structure of mounting hole shrinkage porosity - Google Patents
Solve excavator thrust wheel end cover casting structure of mounting hole shrinkage porosity Download PDFInfo
- Publication number
- CN216758053U CN216758053U CN202121855432.2U CN202121855432U CN216758053U CN 216758053 U CN216758053 U CN 216758053U CN 202121855432 U CN202121855432 U CN 202121855432U CN 216758053 U CN216758053 U CN 216758053U
- Authority
- CN
- China
- Prior art keywords
- mounting hole
- end cover
- cover casting
- thrust wheel
- casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses an excavator thrust wheel end cover casting structure for solving shrinkage porosity of a mounting hole, which comprises an end cover casting; the end cover casting is provided with a mounting hole which is a through hole, and a sand core is arranged in the mounting hole. The two ends of the sand core protrude out of the mounting hole, and the protruding part is conical. According to the utility model, the structure of the end cover casting of the thrust wheel is changed, the size of the hot spot at the position of the mounting hole is reduced, and the shrinkage tendency of the casting is reduced, so that the problem of shrinkage porosity inside the casting is solved.
Description
Technical Field
The utility model relates to the technical field of green sand casting, in particular to an excavator thrust wheel end cover casting structure for solving shrinkage porosity of an installation hole.
Background
The excavator thrust wheel end cover casting is a conventional casting, the position of a mounting hole is generally solid, the thermal node of the casting is large, the material is QT-450, the shrinkage porosity defect is easily generated in the casting mounting hole, even if a large riser is used for feeding, the casting defect cannot be effectively solved, and when the riser is large, the production cost is increased more.
Therefore, the traditional method for solving the problem of shrinkage porosity inside the mounting hole of the end cover casting of the thrust wheel of the excavator is to increase the size of the dead head and improve the feeding capacity of the dead head.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide an excavator thrust wheel end cover casting structure for solving the problem of shrinkage porosity of a mounting hole.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an excavator thrust wheel end cover casting structure for solving shrinkage porosity of a mounting hole comprises an end cover casting;
the end cover casting is provided with a mounting hole which is a through hole, and a sand core is arranged in the mounting hole.
Further, two ends of the sand core protrude out of the mounting hole, and the protruding portion is conical.
Furthermore, the number of the mounting holes is two, and the two mounting holes are symmetrically arranged.
Furthermore, a machining allowance of 2 +/-0.5 mm is reserved on a single side of the mounting hole.
Compared with the prior art, the utility model has the following beneficial effects:
the traditional method for solving the problem of shrinkage porosity inside the end cover casting mounting hole of the thrust wheel of the excavator is to increase the size of a dead head and improve the feeding capacity of the dead head. According to the utility model, the structure of the end cover casting of the thrust wheel is changed, the size of a hot spot at the position of the mounting hole is reduced, and the shrinkage tendency of the casting is reduced, so that the problem of shrinkage porosity inside the casting is solved.
Drawings
FIG. 1 is a schematic diagram of an excavator thrust wheel end cover casting structure in the prior art;
FIG. 2 is a schematic diagram of an excavator thrust wheel end cover casting structure for solving shrinkage porosity of a mounting hole, according to the utility model;
fig. 3 is a schematic view of the structure of fig. 2 after the sand core is installed.
In the figure: the end cover casting comprises an end cover casting 1, a mounting hole 2 and a sand core 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution:
an excavator thrust wheel end cover casting structure for solving shrinkage porosity of an installation hole comprises an end cover casting 1;
the end cover casting is provided with a mounting hole 2 which is a through hole, and a sand core 3 is arranged in the mounting hole.
Further, two ends of the sand core protrude out of the mounting hole, and the protruding portion is conical.
Furthermore, the number of the mounting holes is two, and the two mounting holes are symmetrically arranged.
A sand core is utilized to make a through hole at the position of a mounting hole of an end cover casting of the thrust wheel of the excavator, and 2 +/-0.5 mm of machining allowance is left on the single side of the through hole, so that the size of a thermal node at the position of the mounting hole is reduced.
According to the utility model, the position of the mounting hole of the end cover casting of the thrust wheel is made into the through hole, so that the size of the thermal node at the position of the mounting hole is reduced, and the problem of shrinkage porosity inside the casting is solved.
All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit referred to must have a specific direction, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. An excavator thrust wheel end cover casting structure for solving shrinkage porosity of a mounting hole comprises an end cover casting;
the method is characterized in that the end cover casting is provided with a mounting hole which is a through hole, and a sand core is arranged in the mounting hole;
the two ends of the sand core protrude out of the mounting hole, and the protruding part is conical;
the number of the mounting holes is two, and the two mounting holes are symmetrically arranged;
and 2 +/-0.5 mm of machining allowance is reserved on a single side of the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121855432.2U CN216758053U (en) | 2021-08-10 | 2021-08-10 | Solve excavator thrust wheel end cover casting structure of mounting hole shrinkage porosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121855432.2U CN216758053U (en) | 2021-08-10 | 2021-08-10 | Solve excavator thrust wheel end cover casting structure of mounting hole shrinkage porosity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216758053U true CN216758053U (en) | 2022-06-17 |
Family
ID=81954959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121855432.2U Active CN216758053U (en) | 2021-08-10 | 2021-08-10 | Solve excavator thrust wheel end cover casting structure of mounting hole shrinkage porosity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216758053U (en) |
-
2021
- 2021-08-10 CN CN202121855432.2U patent/CN216758053U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216758053U (en) | Solve excavator thrust wheel end cover casting structure of mounting hole shrinkage porosity | |
| CN201224766Y (en) | New energy-saving type cathode plate for electrolyzing zinc | |
| CN219303796U (en) | Cover plate assembly of power battery and power battery thereof | |
| CN205904424U (en) | 12Ah lead acid battery cast joint mould | |
| CN210569976U (en) | Sintering machine trolley integrated nodular cast iron grid device | |
| CN210272597U (en) | Battery module end plate and battery module | |
| CN209730049U (en) | A kind of novel power battery pole component and its top cover | |
| CN214601100U (en) | Aluminium system water-cooling motor casing extrusion die | |
| CN214920270U (en) | Sand-saving barrel and device for casting base of wind power product | |
| CN214263815U (en) | Novel central runner brick | |
| CN215826964U (en) | Propeller hub adapter plate and engine flange connection structure | |
| CN110311077A (en) | A kind of liquid cooling battery module that safety is good | |
| CN216519518U (en) | Iron gearbox backshell | |
| CN220653074U (en) | Rotor end ring for improving comprehensive characteristics of induction motor | |
| CN210399989U (en) | Cylinder type charging opening prefabricated part made of steel fiber castable of aluminum melting furnace | |
| CN217481729U (en) | Spring nut for nuclear power | |
| CN212338887U (en) | High-performance metal alloy casting | |
| CN218262779U (en) | Conductive steel claw | |
| CN214920339U (en) | Casting mould of wind-powered electricity generation axle class nodular cast iron product | |
| CN218441244U (en) | Split type antidetonation pipe clamp structure | |
| CN218005052U (en) | Square battery cover plate and square battery | |
| CN201338083Y (en) | Magnesium alloy die casting machine | |
| CN203521127U (en) | Transformer wiring terminal | |
| CN214898666U (en) | Shell assembly and battery | |
| CN213928462U (en) | Structure for connecting duct guide vane with duct ring body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |