CN211018440U - Magnetic steel positioning structure, motor and mounting tool of magnetic steel positioning structure - Google Patents
Magnetic steel positioning structure, motor and mounting tool of magnetic steel positioning structure Download PDFInfo
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- CN211018440U CN211018440U CN202020066303.4U CN202020066303U CN211018440U CN 211018440 U CN211018440 U CN 211018440U CN 202020066303 U CN202020066303 U CN 202020066303U CN 211018440 U CN211018440 U CN 211018440U
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Abstract
The utility model discloses a magnet steel location structure, including the rotor back iron, magnet steel clamp plate and periphery holding ring, a plurality of magnet steel clamp plates are fixed in the surface of rotor back iron along the circumference equipartition, the rotor back iron is equipped with the clamp plate fixed orifices with a plurality of magnet steel clamp plate one-to-ones, form the radial outside-in male magnet steel mounting groove that supplies the magnet steel to follow the rotor back iron between the adjacent magnet steel clamp plate, the side of magnet steel clamp plate towards the magnet steel mounting groove is equipped with and is used for restricting the relative rotor back iron of magnet steel along axial displacement's axial limit structure, the periphery holding ring is located the radial periphery of magnet steel clamp plate and magnet steel along the rotor back iron. This scheme can realize magnet steel at rotor back of the body iron axial, circumference and radial location to cancel the boss structure on rotor back of the body iron surface, only need the clamp plate fixed orifices can realize the fixed of magnet steel clamp plate, greatly reduced the processing degree of difficulty and the cost of rotor back of the body iron. This scheme still discloses a motor and above-mentioned magnet steel location structure's installation frock including above-mentioned magnet steel location structure.
Description
Technical Field
The utility model relates to a motor structure designs technical field, especially relates to a magnet steel location structure, a motor and a magnet steel location structure's installation frock.
Background
For the disk type motor rotor disks of the middle stator and the two-side rotor or the disk type motor rotor disk of the single stator and the single rotor, in the rotor disk structure, the magnetic steel is required to be fixedly installed on the back iron. Because the position of the magnetic steel on the back iron needs to be positioned, a common method in the prior art is to process positioning structures such as positioning bosses on the surface of the back iron, however, the positioning boss structure increases the processing difficulty and the processing cost of the back iron.
Therefore, how to reduce the processing difficulty and cost of the back iron while realizing the positioning of the magnetic steel is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a magnet steel location structure, this magnet steel location structure need not at back iron surface machining boss to can carry out axial positioning and circumference location to the magnet steel. Another object of the utility model is to provide an installation frock including above-mentioned magnet steel location structure's motor and a magnet steel location structure.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a magnet steel location structure, includes rotor back iron, magnet steel clamp plate and periphery holding ring, and is a plurality of the magnet steel clamp plate is fixed in along the circumference equipartition the surface of rotor back iron, the rotor back iron be equipped with the clamp plate fixed orifices of a plurality of magnet steel clamp plate one-to-ones, adjacent form between the magnet steel clamp plate and supply the magnet steel to follow the radial outside-in male magnet steel mounting groove of rotor back iron, the orientation of magnet steel clamp plate the side of magnet steel mounting groove is equipped with and is used for the restriction the magnet steel is relative the rotor back iron is along axial displacement's axial limit structure, the periphery holding ring is located the magnet steel clamp plate with the magnet steel is followed the radial periphery of rotor back.
The utility model discloses the scheme provides a magnet steel location structure's application method does: the magnetic steel pressing plate is connected and fixed on the surface of the rotor back iron through the connecting piece and the pressing plate fixing hole, then the magnetic steel is inserted and fixed into the magnetic steel mounting groove between the adjacent magnetic steel pressing plates from the outer side, and finally the peripheral positioning ring is fixed on the outer rings of the magnetic steel pressing plate and the magnetic steel. The adjacent magnetic steel pressing plates have a magnetic steel clamping effect and realize the circumferential positioning of the magnetic steel on the rotor back iron, the axial limiting structure on the side surfaces of the magnetic steel pressing plates realizes the axial positioning of the magnetic steel on the rotor back iron, and the peripheral positioning rings radially constrain the magnetic steel on the rotor back iron so as to resist the centrifugal force of the rotor rotating at a high speed.
Preferably, the axial limiting structure is an axial limiting surface formed on the side surface of the magnetic steel pressing plate, the axial limiting surface of the magnetic steel pressing plate and the surface of the rotor back iron form a magnetic steel mounting groove with a wedge-shaped cross section, and the cross section width of the magnetic steel mounting groove is gradually reduced from the groove bottom to the groove opening.
Preferably, the width of the magnetic steel mounting groove is gradually reduced from outside to inside along the radial direction of the rotor back iron.
Preferably, the rotor back iron is provided with annular positioning steps, the annular positioning steps are located at the positions of the inner rings of the magnetic steel pressing plates in the radial direction of the rotor back iron, and the end parts of the magnetic steel pressing plates abut against the peripheries of the annular positioning steps.
Preferably, the end face of the magnetic steel pressing plate, which is used for abutting against one end of the annular positioning step, is an arc surface attached to the periphery of the annular positioning step.
Preferably, the pressing plate fixing hole is a threaded hole, and the magnetic steel pressing plate is fixed in the pressing plate fixing hole through a pressing plate screw.
Preferably, the peripheral positioning ring is a carbon fiber ring.
The utility model discloses following beneficial effect has:
1) the utility model provides a magnet steel positioning structure can realize the magnet steel in rotor back iron axial, circumference and radial location, guarantees the structure of rotor firm;
2) the utility model discloses the scheme has cancelled the boss structure on current rotor back iron surface, only needs can realize the fixed of magnet steel clamp plate through processing clamp plate fixed orifices, greatly reduced the processing degree of difficulty and the manufacturing cost of rotor back iron.
The utility model also provides a motor of including above-mentioned magnet steel location structure. The derivation process of the beneficial effect of the motor is substantially similar to the derivation process of the beneficial effect brought by the magnetic steel positioning structure, and therefore the description is omitted.
The utility model also provides a magnet steel location structure's installation frock for as above magnet steel location structure's installation location, include:
the pressing plate positioning ring is used for fixing the relative position between every two adjacent magnetic steel pressing plates, the pressing plate positioning ring comprises first pressing plate positioning structures which correspond to the magnetic steel pressing plates one by one, each magnetic steel pressing plate is provided with a second pressing plate positioning structure in limit fit with the first pressing plate positioning structures, and the second pressing plate positioning structures and the pressing plate fixing holes have preset distances in the radial direction of the rotor back iron;
and the tool positioning structure is used for positioning the relative position of the pressing plate positioning ring and the rotor back iron.
Preferably, a side end face of the pressing plate positioning ring is provided with a positioning boss corresponding to each magnetic steel pressing plate one to one, the positioning boss is located the magnetic steel pressing plate is in the outer end position of the rotor back iron in the radial direction, the first pressing plate positioning structure is arranged on a positioning flange on the positioning boss, the second pressing plate positioning structure is arranged on a positioning groove in the outer end of the rotor back iron in the radial direction, the positioning flange is matched with and limited by the positioning groove in a clamping manner, and the magnetic steel pressing plate is in relative rotation of the rotor back iron in the circumferential direction.
Preferably, the periphery of rotor back iron is equipped with annular frock location step, the clamp plate holding ring is fixed in on the step face of frock location step, frock location structure include the locating pin with set up in first frock locating hole on the frock location step and set up in second frock locating hole on the clamp plate holding ring.
The utility model discloses the scheme provides a magnet steel location structure's installation frock can be fixed each magnet steel clamp plate on the rotor back iron fast accurately to guarantee that the magnet steel inserts the magnet steel mounting groove smoothly, simplified the installation positioning process of magnet steel, guaranteed positioning accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an assembled state of a rotor disc and an installation tool in an embodiment of the present invention;
fig. 2 is an exploded schematic view of a rotor disk according to an embodiment of the present invention;
fig. 3 is a schematic view of positioning and assembling of the installation tool in the embodiment of the present invention;
fig. 4 is a schematic view of an assembly process of the magnetic steel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an installation tool of a magnetic steel positioning structure in an embodiment of the present invention;
fig. 6 is a schematic structural view of a positioning boss and a positioning flange of the pressing plate positioning ring according to the embodiment of the present invention;
fig. 7 is a schematic structural view of a magnetic steel pressing plate according to an embodiment of the present invention.
In fig. 1 to 7:
1-rotor back iron, 11-first tool positioning hole, 12-pressing plate fixing hole, 2-magnetic steel, 3-magnetic steel pressing plate, 31-positioning groove, 32-screw hole, 33-arc surface, 34-axial limiting surface, 4-pressing plate positioning ring, 41-second tool positioning hole, 42-positioning boss, 43-positioning flange, 5-pressing plate screw, 6-peripheral positioning ring and 7-annular positioning step.
Detailed Description
The utility model provides a scheme provides a magnet steel location structure, this magnet steel location structure need not at location structure such as rotor back of the body iron surface machining boss, has simplified the structure and the processing degree of difficulty of rotor back of the body iron to can carry out axial positioning and circumference location and radial positioning to the magnet steel. 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.
Referring to fig. 1 to 7, fig. 1 to 3 are a schematic structural diagram of a combined state of a rotor disc and an installation tool, an exploded structural diagram of the rotor disc, and a positioning and assembling diagram of the installation tool according to an embodiment of the present invention, respectively; fig. 4 is a schematic view of an assembly process of the magnetic steel according to an embodiment of the present invention; fig. 5 is a schematic view of an installation tool structure of a magnetic steel positioning structure in an embodiment of the present invention; fig. 6 is a schematic structural view of a positioning boss and a positioning flange of the pressing plate positioning ring according to the embodiment of the present invention; fig. 7 is a schematic structural view of a magnetic steel pressing plate according to an embodiment of the present invention.
In order to reduce the processing degree of difficulty and the cost of back iron in the time of realizing the magnet steel location, the utility model provides a magnet steel location structure, including rotor back iron 1, magnet steel clamp plate 3 and periphery holding ring 6, a plurality of magnet steel clamp plates 3 are fixed in rotor back iron 1's surface along the circumference equipartition, rotor back iron 1 is equipped with the clamp plate fixed orifices 12 with a plurality of magnet steel clamp plates 3 one-to-one, form the radial outside-in male magnet steel mounting groove that supplies magnet steel 2 along rotor back iron 1 between the adjacent magnet steel clamp plate 3, magnet steel clamp plate 3's the side towards the magnet steel mounting groove is equipped with the axial limit structure who is used for restricting magnet steel 2 relative rotor back iron 1 along axial displacement, periphery holding ring 6 is located magnet steel clamp plate 3 and magnet steel 2 along rotor back iron 1's radial periphery.
The utility model discloses the scheme provides a magnet steel location structure's application method does: the magnetic steel pressing plate 3 is connected and fixed on the surface of the rotor back iron 1 through connecting pieces such as pressing plate screws 5 and the like and the pressing plate fixing holes 12, then the magnetic steel 2 is inserted and fixed into a magnetic steel mounting groove between the adjacent magnetic steel pressing plates 3 from the outer side, and finally the peripheral positioning ring 6 is fixed on the outer rings of the magnetic steel pressing plate 3 and the magnetic steel 2. Adjacent magnet steel pressing plate 3 realizes magnet steel 2 at rotor back iron 1's ascending location of circumference to magnet steel 2 clamping action, and the axial limit structure of magnet steel pressing plate 3 side realizes magnet steel 2 at rotor back iron 1 axial location, and periphery holding ring 6 then radially retrains magnet steel 2 at rotor back iron 1 to resist the high-speed rotatory centrifugal force of rotor, prevent that magnet steel 2 from deviating from in the magnet steel mounting groove.
It should be noted that, the utility model discloses in the scheme there is axial limit structure in the design of the side of magnet steel clamp plate 3, when magnet steel 2 inserts in the magnet steel mounting groove between two magnet steel clamp plates 3, axial limit structure can restrict magnet steel 2 and move axially relative to rotor back iron 1, specifically, axial limit structure can be designed to the spacing face structure of slope, the spacing face structure of both sides can make magnet steel mounting groove form the big wedge spacing groove of tank bottom and notch are little, simultaneously, design the both sides face of magnet steel 2 into the inclined plane of laminating with the side of magnet steel clamp plate 3, just so can realize the axial positioning of magnet steel 2; or the side of the magnetic steel pressing plate 3 is provided with a limiting bulge, the side of the magnetic steel 2 is provided with a limiting groove, and the limiting bulge is in clamping fit with the limiting groove to limit the magnetic steel 2 to move axially relative to the rotor back iron 1, and the like. The utility model discloses can carry out the specific structural design of axial limit structure according to magnet steel 2's specific shape demand. The utility model relates to an among the preferred embodiment scheme, axial limit structure is the spacing face 34 of axial that magnetic steel pressing plate 3's side formed, the spacing face 34 of axial of two adjacent magnetic steel pressing plate 3 forms the cross-section with rotor back iron 1's surface jointly and is wedge-shaped magnet steel mounting groove, the cross-sectional width of magnet steel mounting groove is dwindled by tank bottom to notch direction gradually, promptly, the both sides cell wall of magnet steel mounting groove forms a wedge fitting surface and pushes down magnet steel 2, prevent that magnet steel 2 from deviating from along rotor back iron 1's axial.
Preferably, the width of the magnetic steel mounting groove is gradually reduced from outside to inside along the radial direction of the rotor back iron 1. As shown in fig. 3 and 4, the magnetic steel mounting groove and the magnetic steel 2 are both of a fan-shaped structure, the whole groove width is small, the outer end is large, and the inner end is small, so that the magnetic steel 2 can be smoothly inserted and fixed from the outer end to the inner end of the magnetic steel mounting groove, and the assembly operation is further facilitated.
It should be noted that, the rotor back iron 1 can realize the positioning of the magnetic steel pressing plate 3 through the pressing plate fixing holes 12, for example, the magnetic steel pressing plate 3 can be fixed on the rotor back iron 1 through the two pressing plate fixing holes 12, that is, all constraints on the degrees of freedom of the magnetic steel pressing plate 3 are formed. However, in order to further reduce the processing steps of the rotor back iron 1, the utility model discloses can only rely on a clamp plate fixed orifices 12 and other location structure to use in combination to realize the fixed restraint to magnet steel clamp plate 3. As shown in fig. 3 and 4, the rotor back iron 1 is further provided with an annular positioning step 7, the annular positioning step 7 is located at an inner ring position of each magnetic steel pressing plate 3 in the radial direction of the rotor back iron 1, and an end of the magnetic steel pressing plate 3 abuts against the outer periphery of the annular positioning step 7. So set up, when magnetic steel clamp plate 3 only relies on a clamp plate fixed orifices 12 to connect in rotor back iron 1, magnetic steel clamp plate 3 can also rotate around the relative rotor back iron 1 in the axle center of clamp plate fixed orifices 12, and with magnetic steel clamp plate 3 towards the one end butt at rotor back iron 1 center in the periphery of annular location step 7, because annular location step 7 can restrict magnetic steel clamp plate 3's rotation action to just can realize the fixed restraint to magnetic steel clamp plate 3.
It should be noted that the end of the magnetic steel pressing plate 3 may be designed into various structural forms, such as an arc surface, a plane, an elliptical arc surface, a V-shaped surface, and so on, and the outer peripheral surface of the annular positioning step 7 is designed to be correspondingly matched, so as to realize the constraint of the rotational freedom of the magnetic steel pressing plate 3, preferably, referring to fig. 3 and 4, the outer peripheral surface of the annular positioning step 7 is a cylindrical surface, the end surface of the magnetic steel pressing plate 3, which is used for abutting against one end of the annular positioning step 7, is an arc surface 33 which is attached to the outer periphery of the annular positioning step 7, that is, the curvature of the arc surface 33 is the same as the curvature of the outer peripheral surface of the annular positioning step 7, and when the two are attached and abutted, the magnetic steel pressing plate 3 cannot rotate around the axis.
It should be noted that, the utility model provides a clamp plate fixed orifices 12 can design for screw hole, blind hole or through-hole etc. can also design for square hole, cross-section are triangle-shaped or other polygonal holes for the connecting piece that is fixed in rotor back iron 1 with magnet steel clamp plate 3 can choose screw, pin or prismatic pole etc. preferably, the utility model discloses clamp plate fixed orifices 12 in the scheme is the screw hole, and magnet steel clamp plate 3 is fixed in clamp plate fixed orifices 12 through clamp plate screw 5, correspondingly, is equipped with the screw hole 32 that is used for the mounting screw on magnet steel clamp plate 3, as shown in fig. 7.
It should be noted that, the function of the peripheral positioning ring 6 is to restrain the magnetic steel 2 in the outer circumferential direction of the rotor back iron 1 to resist the centrifugal force of the rotor rotating at high speed, so as to prevent the magnetic steel 2 from coming out of the magnetic steel mounting groove and ensure the safety of the rotor in the process of operation. The periphery holding ring 6 can be selected for use metal material or the polymer material that satisfies the intensity demand etc. preferably, the periphery holding ring 6 is the carbon fiber ring. The carbon fiber ring has the advantages of light weight, high strength, easy processing and the like.
The utility model discloses following beneficial effect has:
1) the utility model provides a magnet steel positioning structure can realize magnet steel 2 in rotor back iron 1 axial, circumference and radial location, guarantees that the structure of rotor is firm;
2) the utility model discloses the scheme has cancelled the boss structure on current rotor back iron surface, only needs can realize magnet steel clamp plate 3's fixed through processing clamp plate fixed orifices 12, greatly reduced rotor back iron 1's the processing degree of difficulty and manufacturing cost.
The utility model also provides a motor of including above-mentioned magnet steel location structure. The derivation process of the beneficial effect of the motor is substantially similar to the derivation process of the beneficial effect brought by the magnetic steel positioning structure, and therefore the description is omitted.
It should be noted that the utility model discloses the motor that the scheme provided specifically is disc motor, specifically can be the disc motor of middle stator, both sides rotor, still can be for the disc motor of single stator single rotor.
The utility model also provides a magnet steel location structure's installation frock for as above magnet steel location structure's installation location, include:
the pressing plate positioning ring 4 is used for fixing the relative position between every two adjacent magnetic steel pressing plates 3, the pressing plate positioning ring 4 comprises first pressing plate positioning structures which correspond to the magnetic steel pressing plates 3 one by one, each magnetic steel pressing plate 3 is provided with a second pressing plate positioning structure in limit fit with the first pressing plate positioning structures, and the second pressing plate positioning structures and the pressing plate fixing holes 12 have preset distances in the radial direction of the rotor back iron 1;
and the tooling positioning structure is used for positioning the relative position of the pressure plate positioning ring 4 and the rotor back iron 1.
It should be noted that, there is the predetermined distance in the footpath of rotor back iron 1 with clamp plate fixed orifices 12 above-mentioned second clamp plate location structure, and its effect guarantees that magnet steel clamp plate 3 can't take place to rotate relative to rotor back iron 1 when clamp plate holding ring 4 and magnet steel clamp plate 3 spacing cooperation to guaranteed that the interval and the contained angle of two adjacent magnet steel clamp plates 3 are the default, and then be convenient for can insert the magnet steel 2 the same shape smoothly in the magnet steel mounting groove between two arbitrary adjacent magnet steel clamp plates 3.
It should be noted that, the first pressing plate positioning structure and the second pressing plate positioning structure may be designed in various structural forms, for example, as a protruding block and a groove structure which are mutually snap-fitted, or as a pin and a pin hole structure, or as a limit profile fitting structure, etc. In addition, the pressing plate positioning ring 4 can be placed at different positions of the magnetic steel pressing plate 3 or the rotor back iron 1 to realize the installation and positioning of the magnetic steel pressing plate 3, for example, when the first pressing plate positioning structure and the second pressing plate positioning structure are designed into mutually clamped and matched bump and groove structures, the pressing plate positioning ring 4 can be arranged at the outer circumference position of the rotor back iron 1 and can position each magnetic steel pressing plate 3 from the outer end; when first and second clamp plate location structure design is pin and pinhole structure, clamp plate holding ring 4 can arrange the top of the up end of all magnet steel pressing plate 3 (being magnet steel pressing plate 3 the surface of the one end of keeping away from rotor back iron 1 along the axial of rotor back iron 1 promptly), this moment can be through seting up the pinhole at magnet steel pressing plate 3's up end, then utilize clamp plate holding ring 4 from the pin of taking and pinhole cooperation in order to realize the location to magnet steel pressing plate 3, etc.
Preferably, the utility model discloses a side end face of clamp plate holding ring 4 in the scheme be equipped with the location boss 42 of 3 one-to-one of each magnet steel pressing plate, location boss 42 is located magnet steel pressing plate 3 in the radial outer end position of rotor back of the body iron 1, first clamp plate location structure is for setting up the location flange 43 on location boss 42, second clamp plate location structure is for seting up in magnet steel pressing plate 3 at the constant head tank 31 of the radial outer end of rotor back of the body iron 1, location flange 43 and constant head tank 31 joint cooperation and restriction magnet steel pressing plate 3 and the relative rotation of clamp plate holding ring 4 in rotor back of the body iron 1 week.
It should be noted that the positioning boss 42 may be disposed on any end surface of the pressure plate positioning ring 4, that is, when the pressure plate positioning ring 4 is located above the upper end surface of each magnetic steel pressure plate 3, the positioning boss 42 is located on the end surface of the pressure plate positioning ring 4 facing the rotor back iron 1; when the pressing plate positioning ring 4 is located below the lower end face of each magnetic steel pressing plate 3, the positioning boss 42 is located on the end face of the pressing plate positioning ring 4 facing the magnetic steel pressing plate 3, that is, on the upper end face of the pressing plate positioning ring 4. It should be noted that no matter which arrangement scheme is adopted, the pressing plate positioning ring 4 needs to be fixed with the relative position between the rotor back iron 1 through the tool positioning structure, and thus accurate constraint positioning can be carried out on the position of each magnetic steel pressing plate 3.
As shown in fig. 1 to 3, in a preferred embodiment, an annular tooling positioning step is disposed on the periphery of the rotor back iron 1, the pressing plate positioning ring 4 is fixed on the step surface of the tooling positioning step, and the tooling positioning structure includes a positioning pin, a first tooling positioning hole 11 disposed on the tooling positioning step, and a second tooling positioning hole 41 disposed on the pressing plate positioning ring 4. It should be noted that, in order to guarantee that magnet steel 2 can insert the magnet steel mounting groove smoothly from the outer end, clamp plate holding ring 4 installs and can not block the outer end opening of magnet steel mounting groove behind the frock location step, promptly, clamp plate holding ring 4's thickness needs the height of design for less than or equal to frock location step, design like this can guarantee clamp plate holding ring 4 and the relative fixed back of rotor back iron 1, clamp plate holding ring 4's up end is in the below of magnet steel clamp plate 3's lower terminal surface, promptly, clamp plate holding ring 4's up end can not be higher than the upper surface of the rotor back iron 1 of magnet steel clamp plate 3 contact, thereby dodge the outer end notch of magnet steel mounting groove. In addition, should also design according to above-mentioned requirement when clamp plate holding ring 4 arranges in the up end of each magnet steel clamp plate 3, promptly, guarantees that the lower terminal surface of clamp plate holding ring 4 can not block the notch of magnet steel mounting groove.
The installation process of the pressure plate positioning ring 4 is as follows: connect to rotor back iron 1 through clamp plate screw 5 with each magnet steel clamp plate 3 earlier, then, fix clamp plate holding ring 4 on rotor back iron 1's frock location step through the locating pin, simultaneously, with each location boss 42 and each magnet steel clamp plate 3 one-to-one to with locating flange 43 joint to in magnet steel clamp plate 3's the constant head tank 31, at this moment, each degree of freedom of magnet steel clamp plate 3 all receives the restraint, thereby accomplished magnet steel clamp plate 3 relative rotor back iron 1's installation location. Then, with each magnet steel 2 along the radial of rotor back iron 1, in the outside-in pushed magnet steel mounting groove between each adjacent magnet steel clamp plate 3, finally, the magnet steel installation finishes the back, takes off clamp plate holding ring 4 to at the position installation periphery holding ring 6 that the frock location step corresponds, so far, realize the assembly of rotor dish.
The utility model discloses the scheme provides a magnet steel location structure's installation frock can be fixed each magnet steel clamp plate 3 on rotor back iron 1 fast accurately to guarantee that magnet steel 2 inserts the magnet steel mounting groove smoothly, simplified magnet steel 2's installation positioning process, guaranteed positioning accuracy.
The utility model provides a disc motor rotor dish at middle stator, both sides rotor can be used to magnet steel location structure and installation frock, can also be applied to the disc motor rotor dish of single stator single rotor.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A magnetic steel positioning structure is characterized by comprising a rotor back iron (1), magnetic steel pressing plates (3) and a peripheral positioning ring (6), wherein the magnetic steel pressing plates (3) are uniformly distributed and fixed on the surface of the rotor back iron (1) along the circumferential direction, the rotor back iron (1) is provided with pressing plate fixing holes (12) which are in one-to-one correspondence with the plurality of magnetic steel pressing plates (3), a magnetic steel mounting groove for inserting the magnetic steel (2) along the radial direction of the rotor back iron (1) from outside to inside is formed between the adjacent magnetic steel pressing plates (3), the side surface of the magnetic steel pressing plate (3) facing the magnetic steel mounting groove is provided with an axial limiting structure for limiting the magnetic steel (2) to move axially relative to the rotor back iron (1), the periphery positioning ring (6) is located on the periphery of the magnetic steel pressing plate (3) and the magnetic steel (2) along the radial direction of the rotor back iron (1).
2. The magnetic steel positioning structure according to claim 1, wherein the axial limiting structure is an axial limiting surface (34) formed on a side surface of the magnetic steel pressing plate (3), the axial limiting surfaces (34) of two adjacent magnetic steel pressing plates (3) and the surface of the rotor back iron (1) jointly form the magnetic steel mounting groove with a wedge-shaped cross section, and the cross section width of the magnetic steel mounting groove is gradually reduced from the groove bottom to the groove opening.
3. A magnetic steel positioning structure according to claim 1, wherein the rotor back iron (1) is provided with an annular positioning step (7), the annular positioning step (7) is located at an inner ring position of each magnetic steel pressing plate (3) in the radial direction of the rotor back iron (1), and an end of the magnetic steel pressing plate (3) abuts against the outer periphery of the annular positioning step (7).
4. A magnetic steel positioning structure according to claim 3, wherein the end surface of the magnetic steel pressing plate (3) used for abutting against one end of the annular positioning step (7) is an arc surface (33) attached to the outer periphery of the annular positioning step (7).
5. A magnetic steel positioning structure according to claim 1, wherein the pressing plate fixing hole (12) is a threaded hole, and the magnetic steel pressing plate (3) is fixed to the pressing plate fixing hole (12) by a pressing plate screw (5).
6. A magnetic steel positioning structure according to any of claims 1 to 5, characterized in that the peripheral positioning ring (6) is a carbon fiber ring.
7. An electrical machine comprising a magnetic steel positioning structure as claimed in any one of claims 1 to 6.
8. An installation frock of magnet steel location structure, be used for the installation location of the magnet steel location structure of any one of claims 1 to 6, include:
the pressing plate positioning ring (4) is used for fixing the relative position between every two adjacent magnetic steel pressing plates (3), the pressing plate positioning ring (4) comprises first pressing plate positioning structures corresponding to the magnetic steel pressing plates (3) one by one, each magnetic steel pressing plate (3) is provided with a second pressing plate positioning structure in limit fit with the first pressing plate positioning structures, and the second pressing plate positioning structures and the pressing plate fixing holes (12) have preset distances in the radial direction of the rotor back iron (1);
and the tool positioning structure is used for positioning the relative position of the pressing plate positioning ring (4) and the rotor back iron (1).
9. The mounting tool according to claim 8, wherein a positioning boss (42) corresponding to each magnetic steel pressing plate (3) in a one-to-one manner is arranged on one side end face of the pressing plate positioning ring (4), the positioning boss (42) is located at the outer end position of the magnetic steel pressing plate (3) in the radial direction of the rotor back iron (1), the first pressing plate positioning structure is a positioning flange (43) arranged on the positioning boss (42), the second pressing plate positioning structure is a positioning groove (31) arranged at the outer end of the magnetic steel pressing plate (3) in the radial direction of the rotor back iron (1), and the positioning flange (43) is in clamping fit with the positioning groove (31) and limits the relative rotation of the magnetic steel pressing plate (3) and the pressing plate positioning ring (4) in the circumferential direction of the rotor back iron (1).
10. The mounting tool according to claim 9, wherein an annular tool positioning step is arranged on the periphery of the rotor back iron (1), the pressing plate positioning ring (4) is fixed on the step surface of the tool positioning step, and the tool positioning structure comprises a positioning pin, a first tool positioning hole (11) arranged on the tool positioning step and a second tool positioning hole (41) arranged on the pressing plate positioning ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020066303.4U CN211018440U (en) | 2020-01-13 | 2020-01-13 | Magnetic steel positioning structure, motor and mounting tool of magnetic steel positioning structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020066303.4U CN211018440U (en) | 2020-01-13 | 2020-01-13 | Magnetic steel positioning structure, motor and mounting tool of magnetic steel positioning structure |
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| CN211018440U true CN211018440U (en) | 2020-07-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112615497A (en) * | 2021-01-08 | 2021-04-06 | 中国船舶重工集团公司第七0七研究所 | Tool applied to motor rotor bonding and positioning and use method |
| CN113422481A (en) * | 2021-07-06 | 2021-09-21 | 浙江盘毂动力科技有限公司 | Disk motor rotor, and manufacturing apparatus and manufacturing method |
| CN113765253A (en) * | 2021-09-24 | 2021-12-07 | 日立电梯电机（广州）有限公司 | Rotor magnetic steel assembling method, rotor and supporting tool |
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2020
- 2020-01-13 CN CN202020066303.4U patent/CN211018440U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615497A (en) * | 2021-01-08 | 2021-04-06 | 中国船舶重工集团公司第七0七研究所 | Tool applied to motor rotor bonding and positioning and use method |
| CN113422481A (en) * | 2021-07-06 | 2021-09-21 | 浙江盘毂动力科技有限公司 | Disk motor rotor, and manufacturing apparatus and manufacturing method |
| CN113765253A (en) * | 2021-09-24 | 2021-12-07 | 日立电梯电机（广州）有限公司 | Rotor magnetic steel assembling method, rotor and supporting tool |
| CN113765253B (en) * | 2021-09-24 | 2022-08-02 | 日立电梯电机（广州）有限公司 | Rotor magnetic steel assembling method, rotor and supporting tool |
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