CN210676898U - Cooling structure for low-pressure casting of hub - Google Patents
Cooling structure for low-pressure casting of hub Download PDFInfo
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- CN210676898U CN210676898U CN201921255835.6U CN201921255835U CN210676898U CN 210676898 U CN210676898 U CN 210676898U CN 201921255835 U CN201921255835 U CN 201921255835U CN 210676898 U CN210676898 U CN 210676898U
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Abstract
The utility model discloses a cooling structure for low-pressure casting of a hub, which comprises a die body and a cooling cavity arranged on the die body and used for cooling, wherein the inner wall of the cooling cavity is provided with a heat exchange surface, a sealing cover is arranged at the opening at the upper end of the cooling cavity, and the upper end of the sealing cover is provided with a water inlet pipe convenient for cooling water to enter and a water outlet pipe used for discharging the water after heat exchange; the inlet tube lower extreme extends to the cooling chamber bottom, the port is close to the cooling chamber top on the outlet pipe, the utility model discloses the drawback to current device existence improves, through improving the inlet tube, does benefit to the kinetic energy with in the cooling water as power, and then drives the puddler disturbance liquid and flow, drives the continuous clearance of clearance brush to the cooling intracavity wall simultaneously to prevent the formation of dirt, guaranteed the heat transfer effect, the practicality is strong.
Description
Technical Field
The utility model relates to an automobile processing equipment technical field specifically is a cooling structure for wheel hub low pressure casting.
Background
Along with the development of industry, the part precision that many mills used is also more and more high, and the use amount is also more and more big simultaneously, and many die processing factory has introduced the cooling structure for the casting of wheel hub low pressure and has cooled off the mould for processing wheel hub fast, accelerates its shaping time, has accelerated its production rate greatly.
But cooling structure is used in present wheel hub low pressure casting, generally let in the cooling water to the mould inside in the cooling, carry out rapid cooling to the mould in order to improve machining efficiency, but current cooling structure can form one deck dirt layer after letting in the cooling water for a long time on the heat-transfer surface, and then lead to the later stage cooling effect to seriously descend, and when convection cooling, only be close to the partial cold water of cooling surface and just can carry out effective heat transfer, the partial water of keeping away from the cooling surface then can not absorb sufficient heat, thereby lead to the unsatisfactory problem of cooling effect.
In view of the above problems, a cooling structure for low-pressure casting of a hub is now proposed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cooling structure for wheel hub low pressure casting, with propose present wheel hub low pressure casting in solving above-mentioned background art and use cooling structure, can form one deck dirt layer on the heat-transfer surface after letting in the cooling water for a long time, and then lead to the later stage cooling effect seriously to descend, and when convection cooling, only be close to the partial cold water of cooling surface and just can carry out effective heat transfer, keep away from partial water of cooling surface then can't absorb sufficient heat, thereby lead to the unsatisfactory problem of cooling effect.
In order to achieve the above object, the utility model provides a following technical scheme:
a cooling structure for low-pressure casting of a hub comprises a die body and a cooling cavity arranged on the die body and used for cooling, wherein a heat exchange surface is arranged on the inner wall of the cooling cavity, a sealing cover is arranged at an opening at the upper end of the cooling cavity, and a water inlet pipe convenient for cooling water to enter and a water outlet pipe used for draining away heat-exchanged water are arranged at the upper end of the sealing cover;
the lower end of the water inlet pipe extends to the bottom of the cooling cavity, and the upper port of the water outlet pipe is close to the top of the cooling cavity;
the water inlet pipe comprises a water inlet section fixedly connected with the sealing cover, the lower end of the water inlet section is connected with the connecting section through a conical section, the diameter of the water inlet section is more than twice of that of the connecting section, the lower end of the connecting section is connected with a rotating section through a rotating assembly, the lower end face of the rotating section is of a closed structure, the lower end of the rotating section is provided with a transmission assembly used for converting fluid kinetic energy into self rotating torque, the outer side of the rotating section is provided with a plurality of groups of stirring rods used for disturbing cooling liquid in the cooling cavity, and the end part of each stirring rod is provided with a cleaning brush contacted with the inner wall of the cooling;
the transmission assembly comprises a driving fan blade arranged at the upper port of the rotating section.
As a further aspect of the present invention: the sealing cover is fixedly connected with the die body through bolts, and a sealing gasket for improving the connection sealing performance is arranged between the sealing cover and the die body.
As a further aspect of the present invention: the transmission assembly comprises a connecting sleeve arranged at the lower end of the connecting section, and a rotating bearing matched with the rotating section and a sealing ring for improving the sealing performance are arranged on the inner wall of the connecting sleeve.
As a further aspect of the present invention: the transmission assembly further comprises at least two drainage pipes distributed on the outer side of the lower end of the rotating section in an array mode, and rotary water spraying pipes arranged in parallel with the surface tangent line of the rotating section are arranged at the outer end portions of the drainage pipes.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses drawback to current device existence is improved, through improving the inlet tube, does benefit to the kinetic energy in using the cooling water as power, and then drives puddler disturbance liquid and flow, drives the continuous clearance of cleaning brush to the cooling intracavity wall simultaneously to the formation of prevention dirt has guaranteed the heat transfer effect, and the practicality is strong.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the middle water inlet pipe of the present invention.
Fig. 3 is a schematic structural view of the middle rotary spray pipe of the present invention.
Fig. 4 is a partial enlarged view of the structure of the present invention.
Wherein: the mold comprises a mold body 1, a water outlet pipe 2, a sealing cover 3, a water inlet pipe 4, a cooling cavity 5, a heat exchange surface 6, a water inlet section 41, a conical section 42, a rotating bearing 43, a sealing ring 44, a driving fan blade 45, a rotary water spray pipe 46, a water outlet pipe 47, a cleaning brush 48, a stirring rod 49, a rotary section 410, a connecting sleeve 411 and a connecting section 412.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-2, in an embodiment of the present invention, a cooling structure for low pressure casting of a hub includes a mold body 1 and a cooling cavity 5 disposed thereon for cooling, a heat exchange surface 6 is disposed on an inner wall of the cooling cavity 5, a sealing cover 3 is disposed at an opening at an upper end of the cooling cavity 5, the sealing cover 3 is fixedly connected to the mold body 1 through a bolt, a sealing gasket for improving a sealing performance of the connection is disposed between the sealing cover 3 and the mold body 1, the bolt connection facilitates later-stage disassembly and maintenance of the apparatus, and a water inlet pipe 4 for allowing cooling water to enter and a water outlet pipe 2 for draining away heat-exchanged water are disposed at an upper end of the sealing cover 3;
4 lower extremes of inlet tube extend to 5 bottoms in cooling chamber, 2 last ports of outlet pipe are close to 5 tops in cooling chamber, and this kind of mode of setting up makes the cold water of entering advance to go into the bottom, then along 5 upflow in cooling chamber, discharges from cooling chamber 5 along outlet pipe 2 again, has guaranteed that the cooling water has sufficient heat transfer stroke, has also catered for the low temperature in addition and has sunk the high temperature and float on the characteristics.
The water inlet pipe 4 comprises a water inlet section 41 fixedly connected with the sealing cover 3, the lower end of the water inlet section 41 is connected with the connecting section 412 through a conical section 42, the diameter of the water inlet section 41 is more than two times, preferably three times, of the diameter of the connecting section 412, the speed of liquid entering the connecting section 412 can be improved through the conical section 42, the lower end of the connecting section 412 is connected with a rotating section 410 through a rotating assembly, the lower end face of the rotating section 410 is of a closed structure, a transmission assembly used for converting fluid kinetic energy into self-rotating torque is arranged at the lower end of the rotating section 410, and a plurality of groups of stirring rods 49 used for disturbing cooling liquid in the cooling cavity 5 are arranged on the outer side of the rotating section 410, so that liquid which is not in contact with the heat exchange surface and has low temperature and can be in contact with the; the tip of puddler 49 is equipped with the clearance brush 48 that contacts with 5 inner walls in cooling chamber, and under the effect of rotation section 410, the clearance brush 48 of puddler 49 tip can clear up 5 surfaces in cooling chamber to avoid the appearance on dirt layer, guaranteed the heat transfer effect of heat-transfer surface 6.
The transmission assembly comprises a driving fan blade 45 arranged at the upper port of the rotating section 410, and the driving fan blade 45 can generate a rotating moment under the action of fluid, so that the rotating section 410 is driven to rotate.
As shown in fig. 4, the transmission assembly includes a connection sleeve 411 disposed at a lower end of the connection section 412, a rotation bearing 43 engaged with the rotation section 410 and a sealing ring 44 for improving sealing performance are disposed on an inner wall of the connection sleeve 411, the rotation section 410 can rotate through the rotation assembly, and the sealing ring 44 is used for improving sealing performance between the two.
Example 2
As shown in fig. 3, the transmission assembly further includes at least two water discharge pipes 47 distributed in an array outside the lower end of the rotary section 410, and the outer end of the water discharge pipe 47 is provided with the rotary water spray pipes 46 arranged in parallel with the surface tangent of the rotary section 410, so that when water in the rotary section 410 is discharged from the rotary water spray pipes 46, a reaction force is generated, and the reaction force generates a moment for rotating the rotary section 410 at a high speed, thereby cooperating with the driving fan blades 45 to drive the rotary section 410 to rotate.
The utility model discloses a theory of operation is: when inlet tube 4 lets in cold water, cold water gets into along the section 41 of intaking, under the effect of toper section 42, the velocity of flow of cold water sharply accelerates, then under the impact of rivers, drive flabellum 45 can produce rotatory moment, thereby drive rotatory section 410 and rotate, when cooling water flows out along rotatory section 410, can produce the rotatory moment that comprises reaction force after the blowout from rotatory spray pipe 46 during the cooling, thereby further drive rotatory section 410 and rotate, under rotatory section 410's effect, puddler 49 can stir the coolant liquid that rises, thereby make do not have the opportunity to contact with heat-transfer surface 6 with the lower liquid of temperature of heat-transfer surface contact, thereby improve heat transfer effect, the clearance brush 48 of puddler 49 tip can clear up 5 surfaces in cooling chamber, thereby avoid the appearance of dirt layer, heat transfer effect of heat-transfer surface 6 has been guaranteed.
In summary, the sealing ring 44 is prepared from the following components in parts by weight: 25 parts of ethylene propylene diene monomer, 8 parts of naphthenic rubber oil, 3 parts of paraffin oil, 5 parts of talcum powder, 0.5 part of antioxidant, 1.5 parts of vulcanizing agent and 2 parts of auxiliary vulcanizing agent, wherein the antioxidant is prepared by mixing and stirring diphenylamine and p-phenylenediamine, the weight ratio of diphenylamine to p-phenylenediamine is 0.9:1, the diphenylamine and p-phenylenediamine are mixed and stirred for 8 minutes, the stirring speed is 105r/min, the vulcanizing agent is prepared from sulfur and sulfur monochloride, the weight ratio of sulfur to sulfur monochloride is 1.1:0.85, the mixing and stirring are carried out for 20 minutes, the mixing and stirring speed is 200r/min, and the sealing ring prepared from the raw materials has the advantages of stable chemical property, pressure resistance, wear resistance, good sealing performance and long service life.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A cooling structure for low-pressure casting of a hub comprises a die body (1) and a cooling cavity (5) arranged on the die body and used for cooling, wherein a heat exchange surface (6) is arranged on the inner wall of the cooling cavity (5), a sealing cover (3) is arranged at an opening at the upper end of the cooling cavity (5), and a water inlet pipe (4) facilitating the entering of cooling water and a water outlet pipe (2) used for discharging the water after heat exchange are arranged at the upper end of the sealing cover (3);
the water inlet pipe (4) is characterized by comprising a water inlet section (41) fixedly connected with the sealing cover (3), the lower end of the water inlet section (41) is connected with a connecting section (412) through a conical section (42), the diameter of the water inlet section (41) is more than twice of that of the connecting section (412), the lower end of the connecting section (412) is connected with a rotating section (410) through a rotating assembly, and the lower end face of the rotating section (410) is of a closed structure;
the lower end of the rotating section (410) is provided with a transmission assembly for converting fluid kinetic energy into self rotating torque;
a plurality of groups of stirring rods (49) used for disturbing cooling liquid in the cooling cavity (5) are arranged on the outer side of the rotating section (410), and cleaning brushes (48) in contact with the inner wall of the cooling cavity (5) are arranged at the end parts of the stirring rods (49);
the transmission assembly comprises a driving fan blade (45) arranged at the upper port of the rotating section (410).
2. The cooling structure for low-pressure hub casting according to claim 1, wherein the lower end of the water inlet pipe (4) extends to the bottom of the cooling cavity (5), and the upper port of the water outlet pipe (2) is close to the top of the cooling cavity (5).
3. The cooling structure for low-pressure hub casting according to claim 1, wherein the diameter of the water inlet section (41) is three times the diameter of the connecting section (412).
4. The cooling structure for low-pressure hub casting according to claim 1, wherein the cover (3) is fixedly connected with the mold body (1) through bolts, and a sealing gasket for improving the connection sealing performance is arranged between the cover (3) and the mold body (1).
5. The cooling structure for low-pressure hub casting according to any one of claims 1 to 4, wherein the transmission assembly comprises a connecting sleeve (411) arranged at the lower end of the connecting section (412), and the inner wall of the connecting sleeve (411) is provided with a rotating bearing (43) matched with the rotating section (410) and a sealing ring (44) for improving the sealing performance.
6. The cooling structure for low-pressure hub casting according to any one of claims 1 to 4, wherein the transmission assembly further comprises at least two water discharge pipes (47) distributed in an array on the outer side of the lower end of the rotating section (410), and the outer end of each water discharge pipe (47) is provided with a rotating water spray pipe (46) arranged in parallel with the surface tangent of the rotating section (410).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921255835.6U CN210676898U (en) | 2019-08-05 | 2019-08-05 | Cooling structure for low-pressure casting of hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921255835.6U CN210676898U (en) | 2019-08-05 | 2019-08-05 | Cooling structure for low-pressure casting of hub |
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| Publication Number | Publication Date |
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| CN210676898U true CN210676898U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921255835.6U Active CN210676898U (en) | 2019-08-05 | 2019-08-05 | Cooling structure for low-pressure casting of hub |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421143A (en) * | 2019-08-05 | 2019-11-08 | 镇江裕久智能装备股份有限公司 | A kind of wheel hub low pressure casting cooling structure |
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2019
- 2019-08-05 CN CN201921255835.6U patent/CN210676898U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421143A (en) * | 2019-08-05 | 2019-11-08 | 镇江裕久智能装备股份有限公司 | A kind of wheel hub low pressure casting cooling structure |
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