CN218361922U

CN218361922U - Core assembly fastening structure and core box of water pump core and water passing core of engine cylinder body

Info

Publication number: CN218361922U
Application number: CN202222289249.1U
Authority: CN
Inventors: 张东红; 刘武龙; 孟晓芳
Original assignee: Asimco International Casting Co ltd Shanxi
Current assignee: Asimco International Casting Co ltd Shanxi
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2023-01-24
Anticipated expiration: 2032-08-30

Abstract

The utility model discloses an engine cylinder body water pump core and core assembly fastening structure who crosses the water core, including crossing water core and water pump core, the contact surface of crossing water core and water pump core is provided with the unsmooth core head that is used for the direction, crosses water core and water pump core and all is equipped with the notes sand core chamber of mutual intercommunication, pours into the molding sand in the notes sand core chamber and locks water pump core and cross the water core. The utility model provides a core group fastening core box, includes the core box, is equipped with core group chamber in the core box for the holding assembly is accomplished crosses water core and water pump core group, and core box horizontal direction ladder split mould is upper and lower two parts, and core chamber is including setting up the water pump core chamber on core box upper portion and setting cross water core chamber in the core box lower part, and core box upper portion is equipped with the notes sand mouth in water pump core chamber even, and notes sand mouth even passes through the notes sand core chamber of water core and water pump core. The utility model discloses a core assembly technology has reduced artifical core assembly process, has practiced thrift the use of core assembly bolt and nut, has improved production efficiency, has practiced thrift the cost, has improved the core assembly precision of core group.

Description

Core assembly fastening structure and core box of water pump core and water passing core of engine cylinder body

Technical Field

The utility model relates to a diesel engine cylinder body casting core-making technology specifically is an engine cylinder body water pump core and the core assembly fastening structure and the core box of crossing the water core.

Background

When the water pump core and the water passing core group of the cylinder body of the national six-diesel engine are produced, the manufactured water pump core and the water passing core need to be secondarily combined into one core group, so that the problem of how to combine the two cores exists.

The core group disclosed in chinese patent CN101456062 comprises a plurality of cavity cores on which serial holes are arranged and which are sequentially connected in series through the serial holes, an upper outer core and a lower outer core respectively arranged at two ends of the plurality of cavity cores connected in series, a serial piece sequentially passing through the upper outer core, the plurality of cavity cores and the lower outer core, a left side core and a right side core respectively arranged at two sides of the upper outer core, the plurality of cavity cores and the lower outer core, and a closed cavity for containing a pouring liquid is formed between the upper outer core, the right side core, the lower outer core, the left side core and the plurality of cavity cores. The core assembling mode is a conventional core assembling mode, and fastening is performed by arranging the serial connection holes and then penetrating bolts into the serial connection holes.

As shown in fig. 1, a schematic diagram of a core assembly fastening mode of a water pump core and a water passing core in the prior art generally adopts a mode of manually combining two cores firstly, then penetrating the core assembly through a core assembly bolt, and screwing down a nut to assemble the core when the two cores are assembled. However, the influence of weather changes, bolt looseness often appears when the core group uses, and bolt fastening is carried out again and not only the core group precision is influenced, still reduces production efficiency, increases manual work, material cost.

Disclosure of Invention

In order to solve the above-mentioned receiving weather influence bolt not hard up that utilizes core assembling bolt core assembling to exist, the technical problem who fastens influence core assembling precision, reduction in production efficiency, incremental cost again, the utility model provides an engine cylinder body water pump core and the core assembling fastening structure and the core box of crossing the water core.

The technical scheme of the utility model is that: the utility model provides an engine cylinder body water pump core and core assembly fastening structure who crosses the water core, is provided with the unsmooth core head that is used for the direction including crossing water core and water pump core, crossing the contact surface of water core and water pump core, wherein, cross water core and water pump core and all be equipped with the notes sand core chamber of mutual intercommunication, pour into the molding sand in notes sand core chamber and lock water pump core and cross the water core.

Furthermore, the sand injection core cavity is in a step shape, and an opening far away from the contact surface is larger than an opening at the contact surface.

Further, the sand injection core cavity is of a circular truncated cone shape.

The utility model also provides an engine cylinder body water pump core and the core assembly fastening core box of crossing the water core, including the core box, wherein, be equipped with core group chamber in the core box for the holding assembly is accomplished cross water core and water pump core group, and core box horizontal direction ladder split mould is upper and lower two parts, and core group chamber is including setting up the water pump core chamber on core box upper portion, and sets up the water core chamber of crossing in the core box lower part, and core box upper portion is equipped with the notes sand mouth that leads to water pump core chamber, and notes sand mouth even passes through the notes sand core chamber of water core and water pump core.

Further, the sand injection port is funnel-shaped.

The utility model also provides a water pump core and the core making core box of crossing water core, including crossing water core making module and water pump core making module, wherein, including core group core chamber for the water core and the water pump core group of crossing that the holding assembly was accomplished.

Furthermore, the water passing core cavity is arranged at the lower part of the core making core box, and the water pump core cavity is arranged at the upper part of the core making core box.

Use the utility model discloses a core assembly technology has reduced artifical core assembly process, has practiced thrift the use of core assembly bolt and nut, has improved production efficiency, has practiced thrift material and cost of labor, has improved the core assembly precision of core group.

Drawings

FIG. 1 is a front cut-away view of a prior art core assembly fastening structure.

Fig. 2 is a front sectional view of the core assembly fastening structure of the present invention.

Fig. 3 is a front cut-away view of the core assembly of the present invention after the fastening is completed.

Fig. 4 is a side cut-away view of the core assembly fastening core box of the present invention.

FIG. 5 is a top view of a prior art core box for a water pump cartridge and a water core.

Fig. 6 is a top view of the core making core box of the water pump core and the water passing core of the present invention.

An icon: 1. a water passing core; 1', a water core cavity; 2. a water pump core; 2', a water pump core cavity; 3. a sand core cavity is injected; 4. a sand core cavity is injected; 5. a contact surface; 6. a core print; 7. molding sand; 8. a core box; 9. a sand injection port; 10. a water core making module; 11. water pump core system core module.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description, in combination with the accompanying drawings, will be made in further detail on the core assembly fastening structure and core box of the engine cylinder water pump core and the water core.

The utility model discloses a core assembly mode is shot the sand with core group middle cavity position secondary and is made the grit fill cavity, replaces traditional bolt and nut fastening technology. Referring to fig. 2 and 3, a concave-convex core head 6 for guiding is arranged at a contact surface 5 of a water passing core 1 and a water pump core 2, a sand injection core cavity 3 vertically connected to the contact surface 5 is reserved in the water passing core 1 during core making, a sand injection core cavity 4 vertically connected to the contact surface 5 in a penetrating manner is reserved in the water pump core 2, and the sand injection core cavity can be arranged into a cylindrical or square shape according to the shape of the core head 6 on the premise of ensuring the sand consumption.

Referring to fig. 4, the core box for fastening the water pump core and the water passing core of the engine cylinder comprises a core box 8, wherein a core cavity is arranged in the core box 8 and used for accommodating the assembled water passing core and water pump core group, the horizontal step split mold of the core box 8 is divided into an upper part and a lower part, the core cavity comprises a water passing core cavity 1' arranged at the lower part of the core box 8 and a water pump core cavity 2' arranged at the upper part of the core box 8, the water passing core cavity 1' and the water pump core cavity 2' are avoided to prevent interference at a place where the core group is taken out, a sand injection port 9 communicated with the water pump core cavity 2' is arranged at the upper part of the core box 8, and the sand injection port 9 is communicated with the water core 1 and the sand injection core cavity in the water pump core 2. In this embodiment, the sand injection port 9 is funnel-shaped.

Referring to fig. 5, the core making core box of the water pump core and the water passing core in the prior art includes a water passing core making module 10 and a water pump core making module 11, referring to fig. 6, in this embodiment, a core group cavity of a core box 8 is integrally arranged on the core making core box of the water pump core and the water passing core, a water passing core cavity 1 'is arranged at the lower part of the core making core box, and a water pump core cavity 2' (not shown) is arranged at the upper part of the core making core box. The core making core boxes are integrated, so that the number of the core boxes can be reduced, the core making core boxes are convenient to transport, and the core assembling operation after the core making is finished can be facilitated.

During the use, constitute the core group with water pump core 2, cross behind the water core 1, place the core group in the core group core intracavity in core box 8, make the core once more and make compressed air drive molding sand 7 and fill up the notes sand core chamber of core group, play the purpose that replaces bolt and nut to lock two cores together. The utility model discloses reduced artifical core assembling process, practiced thrift the use of core assembling bolt and nut, improved production efficiency, practiced thrift material and cost of labor, improved the core assembling precision of core group.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. The utility model provides an engine cylinder body water pump core and core assembly fastening structure who crosses water core, is provided with unsmooth core (6) that are used for the direction including crossing water core (1) and water pump core (2) contact surface (5) of crossing water core (1) and water pump core (2), its characterized in that, crosses water core (1) and water pump core (2) and all is equipped with notes sand core chamber (3,4) that communicate each other, annotates into molding sand (7) in notes sand core chamber (3,4) and locks water pump core (2) and water pump core (1).

2. The core assembly fastening structure of the engine block water pump core and the water passing core according to claim 1, wherein the sand injection core cavity (3,4) is stepped, and the opening far away from the contact surface (5) is larger than the opening at the contact surface (5).

3. The engine block water pump core and water passing core assembly fastening structure as claimed in claim 2, wherein the sand injection core cavity (3,4) is of a circular truncated cone shape.

4. The utility model provides an engine cylinder body water pump core and core group's core fastening core box of crossing water core, including core box (8), its characterized in that, be equipped with core group core chamber in core box (8), be used for holding the water core and the water pump core group of crossing that the assembly is accomplished, core box (8) horizontal direction ladder split mould is upper and lower two parts, core group core chamber is including setting up water pump core chamber (2') on core box (8) upper portion, and set up crossing water core chamber (1 ') in core box (8) lower part, core box (8) upper portion is equipped with notes sand mouth (9) of water pump core chamber (2') of intercommunication, notes sand mouth (9) communicate notes sand core chamber (3,4) of crossing water core (1) and water pump core (2).

5. The engine block water pump core and water passing core assembly fastening core box as claimed in claim 4, wherein the sand injection port (9) is funnel-shaped.

6. The utility model provides a water pump core and water pump core making core box of crossing water core, includes crosses water core making core module (10) and water pump core making core module (11), its characterized in that, includes core group core chamber for the water core and the water pump core group of crossing that the holding assembly was accomplished.

7. The water pump core and water passing core making core box according to claim 6, wherein the water passing core cavity (1 ') is arranged at the lower part of the core making core box, and the water pump core cavity (2') is arranged at the upper part of the core making core box.