CN203206009U - Cast aluminum rotor and casting mould thereof - Google Patents
Cast aluminum rotor and casting mould thereof Download PDFInfo
- Publication number
- CN203206009U CN203206009U CN 201320125784 CN201320125784U CN203206009U CN 203206009 U CN203206009 U CN 203206009U CN 201320125784 CN201320125784 CN 201320125784 CN 201320125784 U CN201320125784 U CN 201320125784U CN 203206009 U CN203206009 U CN 203206009U
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- China
- Prior art keywords
- core rod
- aluminium ring
- iron core
- cast
- core
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- Withdrawn - After Issue
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model relates to the field of motor rotors, and in particular relates to a cast aluminum rotor and a casting mould thereof. The cast aluminium rotor comprises an iron core, a first aluminum ring and a second aluminum ring, wherein the first aluminum ring and the second aluminum ring are located on two axial ends of the iron core. The first aluminum ring and the second aluminum ring are molded by casting. A bump which is formed in a mould pouring slot is located on the first aluminum ring or the second aluminum ring. The bump sinks in a casting surface. The bump which is formed in the pouring slot sinks in the casting surface, and the size of the rotor is not increased. The actual size of the rotor is matched with the design size. According to the structure, flattening the bump which is formed in the pouring slot is not needed. Following production processes are omitted. The production efficiency is improved. The quality of the rotor is improved.
Description
Technical field
The utility model and motor rotor field, particularly cast-aluminum rotor and water mold.
Background technology
Rotor comprises the cylindric iron core of silicon steel sheet stack addition and is fixed on the aluminium ring at iron core two ends, at present the epitrochanterian aluminium ring of micro-machine by die casting on iron core, the pouring slot of existing casting mould is with concordant with product casting end face, therefore easily form conical salient point in the position of pouring slot during the demoulding, cause rotor to be slightly larger than design size.During the motor assembling, leave enough insulation distances for ensureing between rotor end-face and the Hall Plate, must remove the salient point on the rotor end-face, normally adopt larger external force to flatten salient point, this mode is difficult to guarantee the evenness of rotor end-face, when pressure is excessive even can affect the size of rotor, not only increased operation, also reduced rotor quality, cost is high, and efficient is low.
Summary of the invention
The purpose of this utility model provides a kind of salient point that need not to flatten, the cast-aluminum rotor that efficient is high.
For achieving the above object, the utility model has adopted following technical scheme: a kind of cast-aluminum rotor, comprise iron core and be positioned at iron mandrel make progress the first aluminium ring and the second aluminium ring at two ends, described the first aluminium ring and the second aluminium ring are by cast molding, the salient point that mould pouring slot place forms is positioned on the first aluminium ring or the second aluminium ring, and described salient point is recessed in the casting face.
Owing to adopting above technical scheme, the pouring slot place forms salient point and is recessed in the casting face, do not increase rotor size, actual size and the design size of guaranteeing rotor are identical, this structure need not to flatten the salient point that the place, sprue gate produces, omit the following process operation, improved production efficiency, also improved the quality of rotor simultaneously.
Another purpose of the present utility model provides a kind ofly comparatively simply waters mold for casting rotor and structure.
For achieving the above object, the utility model has adopted following technical scheme: a kind of mold that waters, comprise the first core rod and the second core rod, enclose be used to the cavity that holds rotor between described the first core rod and the second core rod, the iron core of rotor places in this cavity, be formed for holding the first chamber of the first aluminium ring between the first core rod and the iron core, be formed for holding the second chamber of the second aluminium ring between the second core rod and the iron core, described iron core is provided with intercommunicating pore, this intercommunicating pore is communicated with the first chamber and the second chamber, be provided with on described the first core rod or the second core rod and water the material road, the described pouring slot that waters material road and the first chamber or the second chamber connectivity part is recessed in the casting face.
Owing to adopting above technical scheme, enclose between the first core rod, the second core rod and the iron core for the space of placing the aluminium ring, casting liquid enters the first chamber or the second chamber from watering the material road, then enter in another chamber after passing the through hole on the iron core, because pouring slot is recessed in the casting face, the inevitable depression of the salient point of pouring slot place formation effectively reduces salient point to the impact of rotor size in casting face so, this formed in mould rotor need not to flatten salient point, the quality of Effective Raise rotor.
Description of drawings
Fig. 1 is the structural representation of rotor;
Fig. 2 is the structural representation that waters mold;
Fig. 3 is the front view of the first core rod;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the front view of the second core rod;
Fig. 6 is the vertical view of Fig. 5.
Embodiment
Such as Fig. 1, a kind of cast-aluminum rotor, comprise iron core 11 and the first aluminium ring 12 and the second aluminium ring 13 that are positioned at two ends on iron core 11 axial directions, described the first aluminium ring 12 and the second aluminium ring 13 are by cast molding, the salient point 14 that mould pouring slot 211 places form is positioned on the first aluminium ring 12 or the second aluminium ring 13, and described salient point 14 is recessed in the casting face.In other words, be provided with pit on the aluminium ring of pouring slot 211 corresponding positions, salient point 14 is positioned at shrinkage pool, the sunken end face of salient point 14 is in casting face so, wherein casting face is exactly the product end surface that finally will obtain, also can be understood as in the end face that salient point 14 is hidden in product, as shown in Figure 1, the existence of salient point 14 does not increase trochiterian size, therefore need not to flatten salient point, has omitted follow-up manufacturing procedure, reduce production costs, enhance productivity, certainly also guaranteed simultaneously actual size and the design size consistency of rotor, improved the quality of rotor.Simultaneously, this structure cast-aluminum rotor increase with the distance of Hall Plate during motor in assembling, i.e. the creepage distance of motor increase has enough safe distances, has eliminated potential safety hazard original.
Such as Fig. 2-6, a kind of mold that waters for the manufacture of cast-aluminum rotor, comprise the first core rod 20 and the second core rod 30, enclose be used to the cavity that holds rotor 10 between described the first core rod 20 and the second core rod 30, the iron core 11 of rotor 10 places in this cavity, be formed for holding the first chamber 41 of the first aluminium ring 12 between the first core rod 20 and the iron core 11, be formed for holding the second chamber 42 of the second aluminium ring 13 between the second core rod 30 and the iron core 11, described iron core 11 is provided with intercommunicating pore 111, this intercommunicating pore 111 is communicated with the first chamber 41 and the second chamber 42, be provided with on described the first core rod 20 or the second core rod 30 and water material road 21, the described pouring slot 211 that waters material road 21 and the first chamber 41 or the second chamber 42 connectivity parts is recessed in the casting face.Enclose between the first core rod 20, the second core rod 30 and the iron core 11 for the space of placing the aluminium ring, casting liquid enters the first chamber 41 or the second chamber 42 from watering material road 21, then enter in another chamber after passing the through hole 111 on the iron core 11, namely at the rear and front end of iron core 31 formation aluminium ring, finish the cast aluminium operation of rotor after cooling is fixing.Because pouring slot 211 is recessed in the casting face, so the salient point that forms of pouring slot 211 places will inevitably depression in casting face, effectively reduce salient point to the impact of rotor size, this formed in mould rotor need not to flatten salient point, the quality of Effective Raise rotor.
Such as 2,3 and 4, described the first core rod 20 offers annular groove 22 near on the end face of iron core 11 1 sides, be formed for holding the first chamber 41 of the first aluminium ring 12 between annular groove 22 and the iron core 11, the external diameter of the internal diameter of described annular groove 22 and the first aluminium ring 12 coincide, the degree of depth of annular groove 22 and the first aluminium ring 12 identical along the thickness on the axis direction.
Such as 2,5 and 6, described the second core rod 30 offers stair-stepping the second annular groove 32 near on the end face of iron core 11 1 sides, be formed for holding the second chamber 42 of the second aluminium ring 13 between the second annular groove 32 and the iron core 11, the external diameter of the diameter of described the second annular groove 32 and the second aluminium ring 13 coincide, the degree of depth of the second annular groove 32 and the second aluminium ring 22 identical along the thickness on the axis direction.
The bottom land place of described annular groove 22 or the second annular groove 32 is provided with the boss 221 towards iron core 11 1 side projections, waters material road 21 and is positioned on the same core rod with boss 221 and waters material road 21 and be communicated to boss 221.Boss 221 is towards iron core 11 1 sides projection, cave in towards iron core 11 1 sides in 41 corresponding positions, the first chamber so, so pouring slot 211 is recessed in the casting face, has formed spatial accommodation, the salient point that this cavity forms when guaranteeing the demoulding also can be recessed in the casting face.Further explain, the effect of boss 221 be the equal of pouring slot 211 to iron core 11 place side shiftings one segment distance, the final salient point of realizing is with respect to moving behind the casting face, salient point is hidden in the surface of the first aluminium ring 12, because the size of boss is not very large, can't affect the performance of the first aluminium ring 12.
Described the first core rod 20 and the second core rod 30 all are approximately cylindric, and the dead in line of the first core rod 20, the second core rod 30 and iron core 11, described the first core rod 20 is provided with demoulding hole 23, and this demoulding hole 23 is the dead in line of blind hole and its axis and the first core rod 20; Described the second core rod 30 is provided with the second demoulding hole 33, and this second demoulding hole 33 is the dead in line of through hole and its axis and the second core rod 30.The dead in line in the second demoulding hole 33, iron core mesopore and demoulding hole 23 in the utility model, these three holes are interconnected and consist of demoulding passage, extend in the demoulding hole 23 after using column or shaft-like extractor to pass the iron core mesopore by the rear end insertion in the second demoulding hole 33 during the demoulding, manually promote forward extractor, front core rod 20 is separated with rear core rod 30, realize stripping process, the rotor behind the taking-up cast aluminium namely obtains product.
The outer cover of described the second core rod 30 and iron core 11 is provided with sleeve 50, and described mould cylinder 50 and the first core rod 20 all are fixed on the mould bases, and described watering expects that road 21 and boss 221 all are arranged on the first core rod 20.As shown in Figure 2,50 pairs of the second core rods 30 of mould cylinder and iron core 11 are fixed, guarantee the stability in the second chamber 42 of formation between the second core rod 30 and the iron core 11, clamp system on the mould bases is fixed mould cylinder 50 and the first core rod 20, thereby has guaranteed the stability in the first chamber 41 of formation between the first core rod 20 and the iron core 11.Aluminium liquid flows in 41 interior rear intercommunicating pores 111 inflows the second chambeies 42 of passing through on the iron core 11, the first chamber from watering material road 21, namely at the rear and front end of iron core 11 formation aluminium ring, finishes the cast aluminium operation of rotor after cooling is fixing.
Such as Fig. 3 and 4, the described material road 21 that waters is the taper hole shape, and its osculum end is positioned on the boss 221, and big opening end is positioned on the other end of core rod.Such as Fig. 3 and 4, material road 21 liquid of being convenient to cast that waters of this structure enters and waters material road 21, the liquid of guaranteeing to cast can continuously enter die cavity, guarantee the quality of aluminium ring, the osculum end that waters simultaneously material road 21 namely is the pouring slot 211 less sizes that can effectively reduce salient point, guarantees the rotor surface quality.
Claims (8)
1. cast-aluminum rotor, it is characterized in that: comprise iron core (11) and be positioned at the first aluminium ring (12) and the second aluminium ring (13) at two ends on iron core (11) axial direction, described the first aluminium ring (12) and the second aluminium ring (13) are by cast molding, the salient point (14) that mould pouring slot (211) is located to form is positioned on the first aluminium ring (12) or the second aluminium ring (13), and described salient point (14) is recessed in the casting face.
2. mold that waters for the manufacture of cast-aluminum rotor claimed in claim 1, it is characterized in that: comprise the first core rod (20) and the second core rod (30), enclose be used to the cavity that holds rotor (10) between described the first core rod (20) and the second core rod (30), the iron core (11) of rotor (10) places in this cavity, be formed for holding first chamber (41) of the first aluminium ring (12) between the first core rod (20) and the iron core (11), be formed for holding second chamber (42) of the second aluminium ring (13) between the second core rod (30) and the iron core (11), described iron core (11) is provided with intercommunicating pore (111), this intercommunicating pore (111) is communicated with the first chamber (41) and the second chamber (42), be provided with on described the first core rod (20) or the second core rod (30) and water material road (21), the described pouring slot (211) that waters material road (21) and the first chamber (41) or the second chamber (42) connectivity part is recessed in the casting face.
3. cast-aluminum rotor according to claim 1 waters mold, it is characterized in that: described the first core rod (20) offers annular groove (22) near on the end face of iron core (11) one sides, be formed for holding first chamber (41) of the first aluminium ring (12) between annular groove (22) and the iron core (11), the external diameter of the internal diameter of described annular groove (22) and the first aluminium ring (12) coincide, the degree of depth of annular groove (22) and the first aluminium ring (12) identical along the thickness on the axis direction.
4. cast-aluminum rotor according to claim 2 waters mold, it is characterized in that: described the second core rod (30) offers stair-stepping the second annular groove (32) near on the end face of iron core (11) one sides, be formed for holding second chamber (42) of the second aluminium ring (13) between the second annular groove (32) and the iron core (11), the external diameter of the diameter of described the second annular groove (32) and the second aluminium ring (13) coincide, the degree of depth of the second annular groove (32) and the second aluminium ring (22) identical along the thickness on the axis direction.
According to claim 3 or 4 described cast-aluminum rotors water mold, it is characterized in that: the bottom land place of described annular groove (22) or the second annular groove (32) is provided with the boss (221) towards iron core (11) one side projections, water the material road (21) with boss (221) be positioned on the same core rod and water the material road (21) be communicated to boss (221).
6. cast-aluminum rotor according to claim 5 waters mold, it is characterized in that: described the first core rod (20) and the second core rod (30) all are approximately cylindric, and the dead in line of the first core rod (20), the second core rod (30) and iron core (11), described the first core rod (20) is provided with demoulding hole (23), and this demoulding hole (23) is the dead in line of blind hole and its axis and the first core rod (20); Described the second core rod (30) is provided with the second demoulding hole (33), and this second demoulding hole (33) is the dead in line of through hole and its axis and the second core rod (30).
7. cast-aluminum rotor according to claim 5 waters mold, it is characterized in that: the outer cover of described the second core rod (30) and iron core (11) is provided with sleeve (50), described mould cylinder (50) and the first core rod (20) all are fixed on the mould bases, and described watering expects that road (21) and boss (221) all are arranged on the first core rod (20).
Cast-aluminum rotor according to claim 5 water mold, it is characterized in that: the described material road (21) that waters is the taper hole shape, and its osculum end is positioned on the boss (221), and big opening end is positioned on the other end of core rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125784 CN203206009U (en) | 2013-03-19 | 2013-03-19 | Cast aluminum rotor and casting mould thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125784 CN203206009U (en) | 2013-03-19 | 2013-03-19 | Cast aluminum rotor and casting mould thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203206009U true CN203206009U (en) | 2013-09-18 |
Family
ID=49150072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125784 Withdrawn - After Issue CN203206009U (en) | 2013-03-19 | 2013-03-19 | Cast aluminum rotor and casting mould thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203206009U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138435A (en) * | 2013-03-19 | 2013-06-05 | 合肥凯邦电机有限公司 | Cast aluminum rotor and casting mould thereof |
| CN106914589A (en) * | 2017-04-21 | 2017-07-04 | 响水县融升空调设备有限公司 | A kind of oil pump for engine rotor forming die |
-
2013
- 2013-03-19 CN CN 201320125784 patent/CN203206009U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138435A (en) * | 2013-03-19 | 2013-06-05 | 合肥凯邦电机有限公司 | Cast aluminum rotor and casting mould thereof |
| CN103138435B (en) * | 2013-03-19 | 2016-02-24 | 合肥凯邦电机有限公司 | A kind of cast-aluminum rotor and water mold |
| CN106914589A (en) * | 2017-04-21 | 2017-07-04 | 响水县融升空调设备有限公司 | A kind of oil pump for engine rotor forming die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130918 Effective date of abandoning: 20160224 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130918 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |