CN112953138B - Semi-automatic magnetic shoe overspeed device tensioner - Google Patents
Semi-automatic magnetic shoe overspeed device tensioner Download PDFInfo
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- CN112953138B CN112953138B CN202110371469.6A CN202110371469A CN112953138B CN 112953138 B CN112953138 B CN 112953138B CN 202110371469 A CN202110371469 A CN 202110371469A CN 112953138 B CN112953138 B CN 112953138B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
Abstract
The invention discloses a semi-automatic magnetic shoe tensioning device which comprises a positioning plate and a tensioning mechanism, wherein the tensioning mechanism comprises a bottom plate, a guide seat, a positioning base, a locking block, a cylindrical pin, an elastic resetting device and an upper die, the positioning base is sleeved on the upper part of the guide seat, an outer conical part is arranged at the upper end of the guide seat, a second round hole is arranged at a corresponding position in the positioning base, N square holes which are uniformly distributed in the circumferential direction are formed in the outer side wall of the upper end of the second round hole, the locking block is inserted in the square holes and is linearly movably connected with the square holes in the radial direction, an inner conical cambered surface matched with the outer conical part is arranged on the inner side of the locking block, and the elastic resetting device is arranged between the positioning base and the guide seat. The upper die is driven to move downwards by the press, the upper die drives the workpiece to move downwards together with the positioning base, the plurality of locking blocks are driven to move downwards and outwards simultaneously, the corresponding magnetic shoes are tensioned, the uniform thickness of glue is ensured, the bonding strength of the magnetic shoes is improved, and the phenomenon that the rotor and the stator are scratched can be effectively avoided.
Description
Technical Field
The invention relates to the technical field of brushless motor installation, in particular to a semi-automatic magnetic shoe tensioning device.
Background
The brushless motor rotor assembly is a rotating part and mainly used as a rotor of a motor to transmit mechanical energy. The magnetic shoe mounting process of the brushless motor rotor assembly is to coat single-component resin glue on the surface of the magnetic shoe, then to install the magnetic shoe into the rotor shell, and to position the magnetic shoe by means of the south and north poles of the polarity of the positioning support. In order to ensure the efficiency of the motor, a smaller air gap design is adopted between the rotor and the stator during the design of the motor, and because the magnetic shoe adhesive has higher viscosity, the adhesive has certain thickness after being cured, when the thickness is uneven or too thick, the rotor and the stator are scraped, the load is increased or the stator is blocked, and the motor can be ablated and damaged.
Disclosure of Invention
In order to solve the background technical problem, the invention provides a semi-automatic magnetic shoe tensioning device which has the advantages of simple structure, convenience in operation, low manufacturing cost and the like, can ensure uniform glue thickness, improves the bonding strength of magnetic shoes, can effectively avoid the phenomenon that a rotor and a stator are scratched, avoids ablation and damage of a motor, and improves the product percent of pass.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a semi-automatic magnetic shoe overspeed device tensioner which characterized in that: the tensioning mechanism comprises a bottom plate, a guide seat, a positioning base, a locking block, a cylindrical pin, an elastic resetting device and an upper die, wherein the bottom plate is arranged on an upper plane of the positioning plate, a lower plane of the guide seat is fixedly connected with the upper plane of the bottom plate, the positioning base is sleeved on the upper part of the guide seat and is coaxial with the guide seat, the upper die is coaxial with the positioning base, and the upper end of the upper die is fixedly connected with an upper die frame of the press;
the guide seat comprises an outer conical part, a first cylindrical part, a second cylindrical part and a third cylindrical part which are sequentially connected from top to bottom and have sequentially increased outer diameters, the outer diameter of the first cylindrical part is the same as the maximum outer diameter of the outer conical part, a first through hole is formed in the middle of the guide seat, and a first layer of coaxial holes are formed above the first through hole; the first through hole and the first layer of holes are used for avoiding the middle rotating shaft of the workpiece.
The upper end of the positioning base is provided with a circular boss with a reduced outer diameter, coaxial counter bores, a first round hole, a second round hole and a third round hole are sequentially arranged in the middle of the positioning base from top to bottom, the inner diameter of each counter bore is larger than the inner diameter of the first round hole, the counter bores and the first round hole are used for avoiding a workpiece middle rotating shaft during work, the inner diameter of the second round hole is larger than the inner diameter of the first round hole and is matched with the outer diameter of the first cylindrical part, the inner diameter of the third round hole is matched with the outer diameter of the second cylindrical part, the outer side wall of the upper end of the second round hole is provided with N square holes which are uniformly distributed in the circumferential direction, N is consistent with the number of the magnetic tiles, the square holes are communicated with the second round hole, a positioning block is arranged in the middle of the two square holes in the outer side face of the positioning base and is used for installing and positioning workpieces; the locking block is supported against the center of the magnetic shoe, and the glue thickness is ensured to be uniform.
The locking block is provided with N parts, the N locking blocks are respectively sleeved in the square holes, the locking block and the square holes are formed and can be linearly and movably connected along the radial direction, the width of the locking block close to the second round hole is reduced, the inner side face of the locking block is provided with an inner conical cambered surface, and the conical degree of the inner conical cambered surface is consistent with that of the outer conical part;
the upper plane of the positioning base is provided with N positioning through holes which are uniformly distributed in the circumferential direction, cylindrical pins are arranged in the positioning through holes, the cylindrical pins and the positioning through holes are in interference fit, the upper plane of the locking block is provided with a waist-shaped hole, the position of the waist-shaped hole corresponds to that of the positioning through hole, and the cylindrical pins penetrate through the waist-shaped hole and are linearly movably connected with the waist-shaped hole in the radial direction;
the elastic reset device is arranged between the positioning base and the guide seat and is used for pressing down the upper die to drive the positioning base to move downwards relative to the guide seat, so that the locking block resets after tensioning the magnetic shoe, and unloading is facilitated;
the guide seat, the locking block and the positioning base are all made of stainless steel materials, and adsorption to the magnetic shoe is avoided.
Furthermore, the elastic reset device comprises a fixing bolt and a reset spring, a plurality of first internal thread holes which are uniformly distributed in the circumferential direction are arranged on the lower plane of the positioning base, and a second layer of holes are formed in the lower end of each first internal thread hole;
second through holes are formed in the third cylindrical part and correspond to the first internal threaded holes, and first coaxial mounting counter bores are formed below the second through holes;
the bolt head of the fixing bolt is sleeved in the first mounting counter bore, and the other end of the fixing bolt penetrates through the second through hole and the second layer of holes to be in threaded connection with the first internal threaded hole;
the reset spring is sleeved outside the fixing bolt in the second layer hole, the upper end of the reset spring is fixedly connected with the upper bottom surface of the second layer hole, and the lower end of the reset spring is fixedly connected with the upper plane of the third cylindrical part.
Furthermore, the distance between the upper bottom surface of the third round hole and the upper plane of the second cylindrical part is set as the moving stroke of the positioning base, and the moving stroke of the positioning base is set to be 1.5-2.5 mm, so that the radial moving amount of the locking block is limited, and the magnetic shoe is prevented from being excessively compressed.
Furthermore, the taper of the outer cone part is set to be 20-40 degrees.
Furthermore, the length of a connecting line of the centers of the two end holes of the waist-shaped hole is set to be 3.5-4 mm, so that the extending and collapsing stroke of the locking block is limited, and the device is prevented from being blocked due to excessive collapse.
Furthermore, open slots are formed in the left side and the right side of the positioning plate and are used for being fixedly connected with the press workbench.
Furthermore, be equipped with two guide strips that are bilateral symmetry and set up on the plane on the locating plate, this guide strip includes diaphragm and the riser of one end interconnect constitution L type, and the diaphragm of two guide strips sets up in opposite directions, and the centre forms the sliding guide groove, the bottom plate cover is located in the sliding guide groove, forms rectilinear movement with this sliding guide groove and is connected, the diaphragm is used for being located straining device under the mould.
Furthermore, a handle is arranged on one side face of the bottom plate, so that an operator can conveniently push the tensioning mechanism in the sliding guide groove.
Furthermore, a plurality of third through holes which are uniformly distributed in the circumferential direction are further formed in the third cylindrical portion, the third through holes and the second through holes are arranged in a staggered mode, a second mounting counter bore is formed in the upper end of each third through hole, second internal thread holes are formed in the positions, corresponding to the third through holes, of the bottom plate, and the bottom plate and the guide seat are in threaded connection with the second internal thread holes through the third through holes in a threaded mode through bolts.
Compared with the prior art, the invention has the following beneficial effects: 1) the structure is simple, the operation is convenient, and the cost is low; 2) by arranging the positioning base, the guide seat and the locking blocks, the press is started to drive the upper die to move downwards, the upper die drives the positioning base to move downwards, the locking blocks are simultaneously moved downwards and outwards under the matching action of the arc surfaces of the inner cones and the outer cones of the locking blocks, the corresponding magnetic shoes are tensioned, the uniform thickness of the glue is ensured, the bonding strength of the magnetic shoes is improved, the phenomenon that the rotor and the stator are scratched can be effectively avoided, the motor is prevented from being ablated and damaged, and the product percent of pass is improved; 3) by arranging the elastic reset device, after the upper die rises back along with the upper die frame of the press, the elastic reset device rebounds to drive the locking block to move upwards and inwards and release work, so that the material can be discharged conveniently; 4) through setting up direction sliding tray and handle, make straining device push away to going up under the mould very conveniently, fix a position fast, saved a large amount of installation device's time, improved work efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the external structure of the tension mechanism according to the embodiment of the present invention;
FIG. 3 is a schematic top view of a tensioning mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of the cross-sectional structure of FIG. 3C-C;
FIG. 5 is a schematic view of an external structure of a positioning base according to an embodiment of the present invention;
FIG. 6 is a cross-sectional structural view of a positioning base according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a guide seat according to an embodiment of the present invention;
FIG. 8 is a schematic view of a locking block according to an embodiment of the present invention;
FIG. 9 is an enlarged view of a location I in FIG. 1, where the location I is a schematic view of the rotor housing cut open and the location and installation of the locating block and the rotor bracket;
fig. 10 is a schematic cross-sectional structural view of an operating state according to an embodiment of the present invention.
In the figure: 1. a tensioning mechanism 101, an upper die 102, a positioning base 1021, a circular boss 1022, a counter bore, 1023, a first round hole 1024, a square hole 1025, a second round hole 1026, a third round hole 1027, a first internal threaded hole 1028, a second layer hole 1029, a positioning through hole 103, a locking block, 1031, an internal conical arc face 1032, a waist-shaped hole 104, a positioning block 105, a guide seat 1051, an external conical part 1052, a first cylindrical part 1053, a second cylindrical part 1054, a third cylindrical part 1055, a first layer hole 1056, a second through hole 1057, a first mounting counter bore 1058, a third through hole 1059, a second mounting counter bore 106, a bottom plate 107, a handle 108, a positioning base moving stroke 109, a cylindrical pin 110, a fixing bolt 111, a reset spring 2, a positioning plate 201, a counter bore, 3, a guide strip, 4, a workpiece 401, a magnetic tile 402, a magnetic tile positioning support open slot, 5. a sliding guide groove.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1 to 10, the embodiment of the invention comprises a positioning plate 2 and a tensioning mechanism 1, wherein open slots 201 are respectively arranged on the left side and the right side of the positioning plate 2, the positioning plate 2 passes through the open slots 201 through a T-shaped bolt to be fixedly connected with a press workbench, two guide strips 3 which are arranged in bilateral symmetry are arranged on the upper plane of the positioning plate 2, each guide strip 3 comprises a transverse plate and a vertical plate, one end of each transverse plate and one end of each vertical plate are connected with each other to form an L-shaped structure, the transverse plates of the two guide strips 3 are arranged in opposite directions, and a sliding guide groove 5 is formed in the middle of each transverse plate.
The tensioning mechanism 1 comprises a bottom plate 106, a guide seat 105, a positioning base 102, a locking block 103, a cylindrical pin 109, an elastic reset device and an upper die 101, wherein the bottom plate 106 is sleeved in the sliding guide groove 5 and is linearly movably connected with the sliding guide groove 5, the transverse plate is used for positioning the tensioning mechanism 1 under the upper die 101, and a handle 107 is arranged on one side surface of the bottom plate 106, so that an operator can conveniently push the tensioning mechanism 1 in the sliding guide groove 5; the lower plane of the guide seat 105 is fixedly connected with the upper plane of the bottom plate 106, the positioning base 102 is sleeved on the upper part of the guide seat 105 and is coaxial with the guide seat 105, the upper die 101 is coaxial with the positioning base 102, and the upper end of the upper die is fixedly connected with the upper die frame of the press.
The guide seat 105 comprises an outer conical part 1051, a first cylindrical part 1052, a second cylindrical part 1053 and a third cylindrical part 1054 which are sequentially connected from top to bottom and have sequentially increased outer diameters, the taper of the outer conical part 1051 is set to be 30 degrees, the outer diameter of the first cylindrical part 1052 is the same as the maximum outer diameter of the outer conical part 1051, a first through hole is formed in the middle inside the guide seat 105, and a first layer of coaxial holes 1055 is formed above the first through hole; the first through hole and the first layer of holes 1055 are used for avoiding the middle rotating shaft of the workpiece 4.
The upper end of the positioning base 102 is provided with a circular boss 1021 with a reduced outer diameter, a coaxial counter bore 1022 is sequentially arranged in the middle of the positioning base from top to bottom, a first round hole 1023, a second round hole 1025, a third round hole 1026, the inner diameter of the counter bore 1022 is larger than that of the first round hole 1023, the counter bore 1022 and the first round hole 1023 are used for avoiding a middle rotating shaft of the work-time workpiece 4, the inner diameter of the second round hole 1025 is larger than that of the first round hole 1023, the outer diameter of the second round hole 1025 is matched with that of the first cylindrical part 1052, the inner diameter of the third round hole 1026 is matched with that of the second cylindrical part 1053, 8 square holes 1024 uniformly distributed in circumference are arranged on the outer side wall of the upper end of the second round hole 1025, the square holes 1024 are communicated with the second round hole 1025, a positioning block 104 is arranged in the middle of two square holes 1024 on the outer side surface of the positioning base 102, the positioning block 104 is used for installing and positioning the workpiece 4, the locking block 103 is supported on the center of the magnetic tile 401, and the glue thickness is favorably ensured to be uniform. The distance between the upper bottom surface of the third circular hole 1026 and the upper plane of the second cylindrical portion 1053 is the movement stroke 108 of the positioning base, and the movement stroke 108 of the positioning base is set to be 1.5mm, so as to limit the radial movement amount of the locking block 103 and avoid over-compressing the magnetic shoe 401.
The locking block 103 is provided with 8 locking blocks 103, the 8 locking blocks 103 are respectively sleeved in the square hole 1024, the locking block 103 and the square hole 1024 form a connection capable of linearly moving along a radial direction, the width of the locking block 103 close to the second round hole side is reduced, the inner side surface is provided with an inner conical arc surface 1031, and the taper of the inner conical arc surface 1031 is consistent with that of the outer conical part 1051;
8 positioning through holes 1029 which are uniformly distributed in the circumferential direction are formed in the upper plane of the positioning base 102, cylindrical pins 109 are arranged in the positioning through holes 1029, the cylindrical pins 109 and the positioning through holes 1029 are in interference fit, a waist-shaped hole 1032 is formed in the upper plane of the locking block 103, the length S of a central connecting line of two end holes of the waist-shaped hole 1032 is set to be 3.5mm, the position of the waist-shaped hole 1032 corresponds to the position of the positioning through hole 1029, and the cylindrical pins 109 penetrate through the waist-shaped hole 1032 and are linearly movably connected with the waist-shaped hole 1032 in the radial direction; the waist-shaped hole 1032 is used for limiting the extending and collapsing stroke of the locking block 103, and the phenomenon that the device is blocked due to over collapse of the tensioning mechanism 1 is avoided.
The elastic reset device comprises a fixing bolt 110 and a reset spring 111, wherein a lower plane of the positioning base 102 is provided with 4 first internal threaded holes 1027 which are uniformly distributed in the circumferential direction, and the lower end of each first internal threaded hole 1027 is provided with a second layer of holes 1028; a second through hole 1056 is arranged on the third cylindrical part 1054 corresponding to the first internal threaded hole 1027, and a first coaxial mounting counter bore 1057 is arranged below the second through hole 1056; the bolt head of the fixing bolt 110 is sleeved in the first mounting counter bore 1057, and the other end of the fixing bolt passes through the second through hole 1056 and the second layer hole 1028 to be in threaded connection with the first internal threaded hole 1057; the return spring 111 is sleeved outside the fixing bolt 110 in the second layer of hole 1028, the upper end of the return spring is fixedly connected with the upper bottom surface of the second layer of hole 1028, and the lower end of the return spring is fixedly connected with the upper plane of the third cylindrical portion 1054 of the guide base 105.
The elastic reset device is used for pressing down the upper die 101 to drive the positioning base 102 to move downwards relative to the guide seat 105, so that the locking block 103 resets after tensioning the magnetic shoe 401, and unloading is facilitated.
The guide holder 105, the locking block 103 and the positioning base 102 are all made of stainless steel materials, and the magnetic shoe 401 is prevented from being adsorbed.
Preferably, the third cylindrical portion 1054 is further provided with 4 third through holes 1058 uniformly distributed along the circumference, the third through holes 1058 and the second through holes 1056 are arranged in a staggered manner, the upper end of the third through hole 1058 is provided with a second mounting counter bore 1059, the bottom plate 106 is provided with a second internal threaded hole corresponding to the third through hole 1058, and the bottom plate 106 and the guide seat 105 are in threaded connection with the second internal threaded hole by passing through the third through hole 1058 through a bolt.
The working principle of the invention is as follows: firstly, an upper die 101 is fixedly connected with an upper die frame of a press, a tensioning mechanism 1 is pushed into a sliding guide groove 5 by a hand-held handle 107 until the rear side surface of a bottom plate 106 is connected with a transverse plate of a guide strip 3, the tensioning mechanism 1 is positioned under the upper die 101, then a workpiece 4 is sleeved on a positioning base 102, attention is paid to aligning a magnetic shoe positioning bracket 402 of the workpiece 4 with a positioning block 104, each locking block 103 is ensured to be just tensioned in the middle of the corresponding magnetic shoe 401, the press is started, the upper die frame of the press drives the upper die 101 to move downwards, the positioning base 102 is driven to move downwards together after contacting the positioning base 102, the positioning base 102 drives 8 locking blocks 103 to move downwards simultaneously, the 8 locking blocks move downwards and outwards simultaneously under the matching action of an inner cone arc surface 1031 and an outer cone 1051, the outer side surfaces of the 8 locking blocks simultaneously prop against the magnetic shoes 401 of the workpiece 4 until the upper bottom surface of a third circular hole 1026 is attached to the upper plane of a second cylindrical part, just in time paste the tensioning of magnetic shoe 401 on rotor housing this moment, guaranteed that the glue thickness of pasting magnetic shoe 401 is even, improved magnetic shoe 401 bonding strength, can effectively avoid rotor and stator phenomenon emergence of scraping to appear, avoided the motor ablation damage, improved the product percent of pass. Then the upper die frame of the press drives the upper die 101 to lift back, the positioning base 102 is released, the positioning base 102 lifts back under the action of the elastic resetting device, the 8 locking blocks 103 are driven to move upwards and inwards at the same time, and therefore the workpiece 4 is released, and discharging is convenient.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a semi-automatic magnetic shoe overspeed device tensioner which characterized in that: the tensioning mechanism comprises a bottom plate, a guide seat, a positioning base, a locking block, a cylindrical pin, an elastic resetting device and an upper die, wherein the bottom plate is arranged on an upper plane of the positioning plate, a lower plane of the guide seat is fixedly connected with the upper plane of the bottom plate, the positioning base is sleeved on the upper part of the guide seat and is coaxial with the guide seat, the upper die is coaxial with the positioning base, and the upper end of the upper die is fixedly connected with an upper die frame of the press;
the guide seat comprises an outer conical part, a first cylindrical part, a second cylindrical part and a third cylindrical part which are sequentially connected from top to bottom and have sequentially increased outer diameters, the outer diameter of the first cylindrical part is the same as the maximum outer diameter of the outer conical part, a first through hole is formed in the middle of the guide seat, and a first layer of coaxial holes are formed above the first through hole;
the upper end of the positioning base is provided with a circular boss with a reduced outer diameter, coaxial counter bores, a first round hole, a second round hole and a third round hole are sequentially arranged in the middle from top to bottom, the inner diameter of each counter bore is larger than the inner diameter of the first round hole, the inner diameter of the second round hole is larger than the inner diameter of the first round hole and is matched with the outer diameter of the first cylindrical part, the inner diameter of the third round hole is matched with the outer diameter of the second cylindrical part, the outer side wall of the upper end of the second round hole is provided with N square holes which are uniformly distributed in the circumferential direction, N is consistent with the number of magnetic tiles, the square holes are communicated with the second round hole, a positioning block is arranged between the two square holes on the outer side surface of the positioning base and is used for mounting and positioning a workpiece;
the locking block is provided with N parts, the N locking blocks are respectively sleeved in the square holes, the locking block and the square holes are formed and can be linearly and movably connected along the radial direction, the width of the locking block close to the second round hole is reduced, the inner side face of the locking block is provided with an inner conical cambered surface, and the conical degree of the inner conical cambered surface is consistent with that of the outer conical part;
the upper plane of the positioning base is provided with N positioning through holes which are uniformly distributed in the circumferential direction, cylindrical pins are arranged in the positioning through holes, the cylindrical pins and the positioning through holes are in interference fit, the upper plane of the locking block is provided with a waist-shaped hole, the position of the waist-shaped hole corresponds to that of the positioning through hole, and the cylindrical pins penetrate through the waist-shaped hole and are linearly movably connected with the waist-shaped hole in the radial direction;
the elastic reset device is arranged between the positioning base and the guide seat and used for pressing down the upper die to drive the positioning base to move downwards relative to the guide seat, so that the locking block resets after tensioning the magnetic shoe, and unloading is facilitated;
the guide seat, the locking block and the positioning base are all made of stainless steel materials, and adsorption to the magnetic shoe is avoided.
2. A semi-automatic magnetic shoe tensioning device as claimed in claim 1, wherein: the elastic reset device comprises a fixing bolt and a reset spring, a plurality of first internal thread holes which are uniformly distributed in the circumferential direction are arranged on the lower plane of the positioning base, and a second layer of holes are formed in the lower ends of the first internal thread holes;
second through holes are formed in the third cylindrical part and correspond to the first internal threaded holes, and first coaxial mounting counter bores are formed below the second through holes;
the bolt head of the fixing bolt is sleeved in the first mounting counter bore, and the other end of the fixing bolt penetrates through the second through hole and the second layer of holes to be in threaded connection with the first internal threaded hole;
the reset spring is sleeved outside the fixing bolt in the second layer hole, the upper end of the reset spring is fixedly connected with the upper bottom surface of the second layer hole, and the lower end of the reset spring is fixedly connected with the upper plane of the third cylindrical part.
3. A semi-automatic magnetic shoe tensioning device as claimed in claim 2, wherein: the distance between the upper bottom surface of the third round hole and the upper plane of the second cylindrical part is set as the moving stroke of the positioning base, and the moving stroke of the positioning base is set to be 1.5-2.5 mm, so that the radial moving amount of the locking block is limited, and the magnetic shoe is prevented from being excessively compressed.
4. A semi-automatic magnetic shoe tensioning device as claimed in claim 1, wherein: the taper of the outer conical part is set to be 20-40 degrees.
5. A semi-automatic magnetic shoe tensioning device as claimed in claim 1, wherein: the length of a connecting line of the centers of the two end holes of the waist-shaped hole is set to be 3.5-4 mm, so that the extending and collapsing stroke of the locking block is limited, and the phenomenon that the device is clamped due to excessive collapse of the device is avoided.
6. A semi-automatic magnetic shoe tensioning device as claimed in claim 1, wherein: and open slots are formed in the left side and the right side of the positioning plate and are used for being fixedly connected with the press workbench.
7. A semi-automatic magnetic shoe tensioning device according to claim 6, wherein: the utility model discloses a positioning base, including locating plate, bottom plate cover, locating plate upper plane, bottom plate cover, locating plate upper plane is equipped with two guide strips that are bilateral symmetry and set up on the plane, and this guide strip includes diaphragm and the riser that an end interconnect constitutes the L type, and the diaphragm of two guide strips sets up in opposite directions, and the centre forms the sliding guide groove, the bottom plate cover is located in the sliding guide groove, forms rectilinear movement with this sliding guide groove and is connected, the diaphragm is used for being located the locating base under the mould.
8. A semi-automatic magnetic shoe tensioning device as claimed in claim 7, wherein: and a handle is arranged on one side surface of the bottom plate, so that an operator can conveniently push the tensioning mechanism in the sliding guide groove.
9. A semi-automatic magnetic shoe tensioning device as claimed in claim 1, wherein: the third cylindrical part is also provided with a plurality of third through holes which are circumferentially and uniformly distributed, the third through holes and the second through holes are arranged in a staggered mode, second mounting counter bores are formed in the upper ends of the third through holes, second internal thread holes are formed in the positions, corresponding to the third through holes, of the bottom plate, and the bottom plate and the guide seat are in threaded connection with the second internal thread holes through bolts penetrating through the third through holes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110371469.6A CN112953138B (en) | 2021-04-07 | 2021-04-07 | Semi-automatic magnetic shoe overspeed device tensioner |
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| CN202110371469.6A CN112953138B (en) | 2021-04-07 | 2021-04-07 | Semi-automatic magnetic shoe overspeed device tensioner |
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| CN112953138A CN112953138A (en) | 2021-06-11 |
| CN112953138B true CN112953138B (en) | 2022-07-15 |
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| CN2930066Y (en) * | 2006-07-21 | 2007-08-01 | 卧龙电气集团股份有限公司 | Magnetic shoe fixing structure for permanent magnet motor |
| CN201018365Y (en) * | 2006-12-31 | 2008-02-06 | 横店集团东阳东磁电机有限公司 | Multipole magnetic shoe and machine casing assembling instrument |
| CN101202485A (en) * | 2007-07-10 | 2008-06-18 | 浙江省东阳市诚基电机有限公司 | Multipolar magnetic shoe assembling device |
| CN108988591A (en) * | 2018-07-26 | 2018-12-11 | 马鞍山和腾汽车配件有限公司 | A kind of magnetic shoe assembly method of starter stator assembly |
| CN111200346A (en) * | 2020-02-20 | 2020-05-26 | 咸宁恒舟信息科技有限公司 | Magnetic shoe press-fitting equipment for rotor assembly |
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| CN112953138A (en) | 2021-06-11 |
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