CN115815558A - A High Cooling Water Jacket Based on Die Casting Process - Google Patents

Abstract

The invention discloses a high-cooling water jacket based on die-casting, which belongs to the technical field of water jackets and comprises a water jacket body, wherein the water jacket body consists of two first chambers positioned in the middle and two second chambers positioned on two sides of the first chambers, the length of the upper end surface of the water jacket body is 361mm, the length of the lower end surface of the water jacket body is 357.66 +/-0.01 mm, the height of the water jacket body is 91.59mm, the width of the water jacket body is 113.67 +/-0.01 mm, the first chamber and the second chamber are respectively provided with an upper sleeve part with a larger upper opening diameter and a base part with a smaller lower opening diameter, and the two first chambers and the two second chambers are in a communicated state.

Description

A High Cooling Water Jacket Based on Die Casting Process

technical field

The invention relates to the technical field of water jackets, in particular to a high-cooling water jacket based on die-casting processing.

Background technique

The function of the water jacket is to transfer the temperature of the engine combustion chamber and the inner wall of the cylinder to the coolant through heat conduction. Because the liquid is flowable, it passes through the water pump and circulates to the radiator. The radiator radiates heat to the coolant through the flow of outside air, and then the coolant is released. The superheated coolant is circulated to the engine water jacket to receive the heat generated when the engine is working, and so on.

After the existing water jacket is die-casted, the surface is generally not treated with titanium aluminum nitride, so that the hardness and smoothness of the surface of the water jacket cannot meet the ideal requirements. After a long time of use, the inside of the water jacket is easy to crack.

Contents of the invention

In order to solve the above technical problems, the present invention provides a high-cooling water jacket based on die-casting, including a water jacket body, and the water jacket body is composed of two first chambers located in the middle and two sides of the first chamber. composed of two second chambers.

Preferably: the length of the upper end surface of the water jacket body is 361mm, the length of the lower end surface of the water jacket body is 357.66±0.01mm, the height of the water jacket body is 91.59mm, and the width of the water jacket body is 113.67±0.01mm.

Preferably: both the first chamber and the second chamber are provided with an upper sleeve portion 7 with a larger upper opening diameter and a lower base portion with a smaller opening diameter, two of the first chambers and two of the second chambers The two chambers are connected.

Preferably: the height of the base part is 40.4 mm, and the end face of the upper opening of the base part is an inclined face of 45°.

Preferably: a recess is provided adjacent to the joint of the outer edges of the first chamber and the second chamber, and the recess is arc-shaped.

Preferably: the outer edge of the second chamber away from the first chamber is provided with a side groove.

Preferably: the bases of the first chamber and the second chamber are provided with central through holes.

Preferably: the base part of the first chamber is symmetrically opened with a first through hole along the central axis of the Y axis, and a second through hole is opened on both sides of the first through hole, and the center point of the first through hole , the center points of the second through hole and the adjacent middle through hole are located on the same circle.

Preferably, the base part of the second chamber is provided with a third through hole and a groove along the central axis of the Y axis, and a fourth through hole is provided on both sides of the third through hole, and the third through hole, Center points of the fourth through hole and the adjacent middle through holes are located on the same circle.

Preferably: the surface of the water jacket body is treated with titanium aluminum nitride, the hardness of the surface coating is ≥2800HV, the internal hardness is 44-48HRC, the surface finish of the water jacket is Ra0.4, and the tolerance of the insert is ±0.01mm .

Technical effect and advantage of the present invention:

In the present invention, the shape and size of the water jacket are designed so that the water jacket has greater strength. The surface of the water jacket is treated with titanium aluminum nitride, the surface coating hardness is ≥ 2800HV, and the internal hardness is 44-48HRC. The wear resistance of the water jacket can prolong the service life of the water jacket.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the high cooling water jacket provided by the embodiment of the present application;

Fig. 2 is a top view of the high cooling water jacket provided by the embodiment of the present application;

Fig. 3 is a longitudinal sectional view of the high cooling water jacket provided by the embodiment of the present application.

In the figure: 1, water jacket body; 2, first chamber; 201, first through hole; 202, second through hole; 3, second chamber; 301, side groove; 302, third through hole; 303, the fourth through hole; 304, the groove; 4, the concave part; 5, the middle through hole; 6, the base part; 7, the upper sleeve part.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, but are not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention and design various embodiments with various modifications as are suited to the particular use.

Example 1

Please refer to Figures 1 to 3. In this embodiment, a high-cooling water jacket based on die-casting processing is provided, including a water jacket body 1, the length of the upper end surface of the water jacket body 1 is 361mm, and the bottom of the water jacket body 1 The length of the end face is 357.66±0.01mm, the height of the water jacket body 1 is 91.59mm, the width of the water jacket body 1 is 113.67±0.01mm, and the water jacket body 1 is composed of two first chambers 2 in the middle and a Two second chambers 3 on both sides of the first chamber 2 are formed. The first chamber 2 and the second chamber 3 are provided with an upper sleeve part 7 with a larger upper opening diameter and a base part 6 with a smaller lower opening diameter. , the height of the base part 6 is 40.4mm, the end face of the upper end opening of the base part 6 is a 45 ° inclined surface, the upper end faces of the first chamber 2 and the second chamber 3 are ridge-shaped, the two first chambers 2 and The two second chambers 3 are connected, and a recess 4 is provided at the joint between the adjacent first chamber 2 and the outer edge of the second chamber 3. The recess 4 is an arc surface, and the second chamber 3 is far away from the first chamber. The outer edge of the chamber 2 is provided with a side groove 301, and the base parts 6 of the first chamber 2 and the second chamber 3 are provided with a middle through hole 5 for connecting M8 bolts.

The base portion 6 of the first chamber 2 is symmetrically opened with a first through hole 201 along the central axis of the Y axis. The first through hole 201 is used for connecting M12 bolts. Hole 202, the second through hole 202 is used to connect M8 bolts, and the center point of the first through hole 201, the center point of the second through hole 202 and the adjacent middle through hole 5 are located on the same circle.

The base portion 6 located in the second chamber 3 is provided with a third through hole 302 and a groove 304 along the central axis of the Y axis. The groove 304 cooperates with the cylinder core to prevent the water jacket body 1 from rotating. The third through hole 302 is used for For connecting M12 bolts, a fourth through hole 303 is provided on both sides of the third through hole 302, the fourth through hole 303 is used to connect M8 bolts, and the third through hole 302, the fourth through hole 303 and the adjacent middle The center points of the through holes 5 are located on the same circle.

Example 2

In this embodiment, a processing technology based on a high cooling water jacket in die-casting processing is provided, including the following steps:

S1, rough machining: According to the design of the water jacket in embodiment 1, the raw material is rough-machined, including CNC lathe processing, ordinary lathe processing, centerless grinding machine processing, deep hole drilling machine processing, and hollow drilling and tapping processing;

S2. Heat treatment: put the roughly machined water jacket into a vacuum furnace, after three times of high-temperature tempering, and then perform cryogenic treatment;

S3. Finishing: The water jacket after vacuum furnace processing is processed in CNC lathes, centerless grinders, internal and external cylindrical grinders, punch machine tools and surface grinders, and then undergoes CNC processing, electrode processing, electrical discharge processing, wire cutting processing and surface polishing. treatment to obtain a finely machined water jacket;

S4. Preliminary inspection: use altimeter, projector, three coordinates, X-ray instrument, micrometer, caliper, gauge and tooth gauge to conduct preliminary inspection on the finished water jacket;

S5. Surface treatment: After the water jacket that passes the initial inspection is treated with gas nitrogen oxidation and salt bath nitriding, it is then coated with Balzers coating and nitriding + composite coating;

S6. Full inspection: use altimeter, projector, three coordinates, X-ray instrument, micrometer, calipers, gauges and tooth gauges to conduct a full inspection of the finished water jacket. After the full inspection is passed, it will be packaged and shipped.

Among them, the surface of the water jacket is treated with titanium aluminum nitride, the hardness of the surface coating is ≥2800HV, the internal hardness is 44-48HRC, the surface finish of the water jacket is Ra0.4, and the tolerance of the insert is ±0.01mm.

In the present invention, the shape and size of the water jacket are designed so that the water jacket has greater strength. The surface of the water jacket is treated with titanium aluminum nitride, the surface coating hardness is ≥ 2800HV, and the internal hardness is 44-48HRC. The wear resistance of the water jacket can prolong the service life of the water jacket.

Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, shall be implemented according to conventional means in the art.

Claims (10)

1. The high-cooling water jacket based on die-casting processing comprises a water jacket body (1) and is characterized in that the water jacket body (1) consists of two first chambers (2) positioned in the middle and two second chambers (3) positioned on two sides of the first chambers (2).

2. The high-cooling water jacket based on die casting according to claim 1, wherein the length of the upper end surface of the water jacket body (1) is 361mm, the length of the lower end surface of the water jacket body (1) is 357.66 ± 0.01mm, the height of the water jacket body (1) is 91.59mm, and the width of the water jacket body (1) is 113.67 ± 0.01mm.

3. The high cooling water jacket based on die casting according to claim 1, wherein the first chamber (2) and the second chamber (3) are provided with an upper jacket portion (7) having a larger upper opening diameter and a lower base portion (6) having a smaller lower opening diameter, and the two first chambers (2) and the two second chambers (3) are in communication.

4. The high cooling water jacket based on die casting according to claim 3, wherein the height of the base portion (6) is 40.4mm, and the end surface of the upper end opening of the base portion (6) is a 45 ° inclined surface.

5. A high cooling water jacket based on die casting according to claim 3, characterized in that a recess (4) is provided adjacent to the junction of the outer edges of the first chamber (2) and the second chamber (3), the recess (4) being cambered.

6. A high cooling water jacket based on die casting according to claim 5, characterized in that the outer edge of the second chamber (3) remote from the first chamber (2) is provided with an edge groove (301).

7. The high cooling water jacket based on die casting according to claim 5, wherein the base portions (6) of the first chamber (2) and the second chamber (3) are provided with middle through holes (5).

8. The high cooling water jacket based on die casting according to claim 7, wherein the base portion (6) of the first chamber (2) is symmetrically provided with first through holes (201) along the direction of the central axis of the Y axis, the two sides of the first through hole (201) are provided with second through holes (202), and the center point of the first through hole (201), the center point of the second through hole (202) and the center point of the adjacent middle through hole (5) are located on the same circle.

9. The high-cooling-water jacket based on die-casting processing according to claim 7, wherein a third through hole (302) and a groove (304) are formed in the base portion (6) of the second chamber (3) along the direction of the central axis of the Y axis, fourth through holes (303) are formed in two sides of the third through hole (302), and the center points of the third through hole (302), the fourth through hole (303) and the adjacent middle through hole (5) are located on the same circle.

10. The high-cooling water jacket based on the die-casting process is characterized in that the surface of the water jacket body (1) is subjected to titanium aluminum nitride treatment, the surface coating hardness is more than or equal to 2800HV, the internal hardness is 44-48HRC, the surface finish of the water jacket is Ra0.4, and the insert fit tolerance is +/-0.01 mm.

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