CN210780309U

CN210780309U - Electric machine

Info

Publication number: CN210780309U
Application number: CN201921816881.9U
Authority: CN
Inventors: 黄垄; 卢平
Original assignee: Zhongshan Broad Ocean Motor Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-06-16
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a motor, which comprises a first end cover, a second end cover, a stator component, a rotor component, a rotating shaft and a bearing, wherein the first end cover comprises a first sleeve part, the second end cover is a second sleeve part, the first end cover and the second end cover are locked through bolts, the first end cover and the second end cover are cast aluminum end covers, at least 3 first bosses are arranged at the end part interval of the first sleeve part, at least 3 second bosses are arranged at the end part interval of the second sleeve part, the first bosses and the second bosses are arranged in a one-to-one correspondence way, the bolts are locked on the first bosses and the second bosses, two stretching end covers are adopted to be directly installed to form a motor shell, a shell component is cancelled, motor parts and fastening fittings are reduced, the structure and the installation process of the motor are simplified, the assembly is simple, the assembly efficiency is improved, the management cost is reduced, in addition, the number of the bolts used for fixing the motor is reduced from the original, the assembling efficiency can be improved.

Description

Electric machine

Technical Field

The utility model relates to a motor, especially a motor.

Background

As shown in fig. 1 to 2, a conventional motor with a mounting bracket includes a motor main body, a locking bracket C, a mounting bracket B and a damping ring D, the mounting bracket B includes a bottom plate and side plates E located at two ends of the bottom plate, the tops of 2 side plates E are respectively provided with a lower half slot F, two ends of the motor main body are provided with the damping ring D, the damping ring D is supported and mounted on the lower half slot F, the locking bracket C includes a connecting rod G, two ends of the connecting rod G are respectively locked with a pair of hoops H through bolt nuts, the lower part of the hoop H is provided with a clamping slot I, two sides of the half slot F are provided with a clamping hook J, the clamping slot I is clamped with the clamping hook J, so that the locking bracket C is mounted on the tops of the side plates and pressed against the damping ring D, the motor main body includes a casing a, a first end cover a1, a second end cover a2, a stator assembly and a rotor assembly, the first end cover a1 and, the stator assembly and the rotor assembly are installed in the machine shell A, the end part of the bolt-nut mechanism E respectively protrudes out of the first end cover A1 and the second end cover A2, the outer side surfaces of the first end cover A1 and the second end cover A2 are locked with a capacitance box K through screws, the connecting rod G can effectively prevent the motor main body A from moving in the axial direction, and the motor is more stable in operation.

Disclosure of Invention

The utility model aims at providing a motor, because the spare part that relates to when installing the motor is many in order to solve among the prior art to the equipment process that leads to the motor becomes complicated, troublesome, makes the technical problem that the production rhythm slowed down.

The technical scheme of the utility model is realized like this:

a motor comprises a first end cover, a second end cover, a stator assembly, a rotor assembly, a rotating shaft and a bearing, wherein the first end cover comprises a first end plate and a first sleeve part axially protruding from the edge of the first end plate, the second end cover comprises a second end plate and a second sleeve part axially protruding from the edge of the second end plate, the first end cover and the second end cover are locked through bolts, a cavity is formed in the middle of the first end cover and the second end cover, the stator assembly and the rotor assembly are installed in the cavity, a first bearing seat axially protrudes in the middle of the inner end face of the first end plate, a first installation boss axially protrudes in the middle of the outer end face of the first end plate, a second bearing seat axially protrudes in the middle of the inner end face of the second end plate, the bearing is installed in the first bearing seat and the second bearing seat respectively, the rotating shaft is supported on the bearing, a damping ring is sleeved on the first installation boss and the second installation boss respectively, the first end cover and the second end cover are cast aluminum end covers, at least 3 first bosses are arranged on the outer side surface of the end part of the first sleeve part at intervals, at least 3 second bosses are arranged on the outer side surface of the end part of the second sleeve part at intervals, the first bosses and the second bosses are arranged in a one-to-one correspondence mode, mounting holes for bolts to penetrate through are formed in the first bosses and the second bosses, and the bolts are locked on the first bosses and the second bosses.

Preferably, the height H1 of the first end cap is greater than the height H2 of the second end cap.

Preferably, a U-shaped notch is provided on the second sleeve portion of the second end cap.

Preferably, 3 first bosses are uniformly distributed in the circumferential direction, and 3 second bosses are uniformly distributed in the circumferential direction.

Preferably, the first sleeve part is further provided with 2 buckles, the 2 buckles are respectively arranged on 2 adjacent first bosses, the 2 buckles and the outer side face of the first sleeve part form a clamping groove, a capacitance box is clamped in the clamping groove, and one end of the capacitance box abuts against a limiting boss arranged on the first sleeve part.

Preferably, clamping blocks are arranged on two sides of the capacitor box and clamped in the clamping grooves.

Preferably, the first end cover and the second end cover are mounted on a U-shaped support, the U-shaped support comprises a bottom plate and support plates which protrude upwards from two sides of the bottom plate respectively, grooves are formed in the support plates, and the damping rings are nested on the grooves of the U-shaped support and locked on the U-shaped support through a locking device.

Preferably, one side of the groove is provided with a clamping hook, the other side of the groove is outwards bent to form a first flanging, the first flanging is provided with a second screw hole, one end of the locking device is clamped on the clamping hook, and the other end of the locking device is locked on the second screw hole of the first flanging through a screw.

Preferably, locking device includes connecting rod and 2 staple bolts, the staple bolt welds respectively at the both ends of connecting rod, the staple bolt is including pressing from both sides tight section, linkage segment, for holding tightly in the arc application of force section of damping ring between tight section and the linkage segment, sets up the bayonet socket that supplies the pothook joint on the linkage segment, presss from both sides tight section and sets up the second through-hole that supplies the screw to pass, the connecting rod welding is on the tip of pressing from both sides tight section.

Preferably, one side of the support plate is bent inwards to form a second flanging, the second flanging is provided with a first screw hole, and a ground wire led out from the motor is locked on the first screw hole.

Preferably, triangular reinforcing ribs are arranged on the bottom plate.

Compared with the prior art, the utility model, there is following advantage:

1. a motor comprises a first end cover, a second end cover, a stator assembly, a rotor assembly, a rotating shaft and a bearing, wherein the first end cover comprises a first sleeve part, the second end cover comprises a second sleeve part, the first end cover and the second end cover are locked through bolts, the first end cover and the second end cover are cast aluminum end covers, at least 3 first bosses are arranged on the outer side surface of the end part of the first sleeve part at intervals, at least 3 second bosses are arranged on the outer side surface of the end part of the second sleeve part at intervals, the first bosses and the second bosses are arranged in a one-to-one correspondence manner, the bolts are locked on the first bosses and the second bosses, two cast aluminum end covers are directly installed to form a motor shell, a machine shell assembly is cancelled, motor parts and fastening fittings are reduced, the structure and the installation process of the motor are simplified, the assembly is simple, the assembly efficiency is improved, the management cost is reduced, in addition, the number of the bolts used for fixing the motor, the assembling efficiency can be improved.

2. Other advantages of the present invention are described in detail in the examples section of this specification.

Drawings

FIG. 1 is a perspective view of a prior art motor with a mounting bracket;

FIG. 2 is an exploded view of a prior art motor with a mounting bracket;

fig. 3 is a perspective view of the motor with the U-shaped bracket provided by the present invention;

fig. 4 is an exploded view of the motor with U-shaped bracket provided by the present invention;

fig. 5 is a front view of the motor with the U-shaped bracket provided by the present invention;

FIG. 6 is a cross-sectional view A-A provided in FIG. 5;

fig. 7 is an exploded view of the motor and the capacitor box provided by the present invention;

fig. 8 is a bottom view of the motor and the capacitor box provided by the present invention;

FIG. 9 is a cross-sectional view B-B provided in FIG. 8;

fig. 10 is a cross-sectional view of the motor provided by the present invention;

fig. 11 is a perspective view of a U-shaped bracket provided by the present invention;

fig. 12 is a perspective view of the hoop provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.

As shown in fig. 3 to 12, the present embodiment provides an electric machine including a first end cap 11, a second end cap 12, a stator assembly 14, a rotor assembly 15, a rotating shaft 16, and a bearing 17, wherein the first end cap 11 includes a first end plate 111 and a first sleeve portion 112 axially protruding from an edge of the first end plate 111, the second end cap 12 includes a second end plate 121 and a second sleeve portion 122 axially protruding from an edge of the second end plate 121, the first end cap 11 and the second end cap 12 are locked by a bolt 8 and form a cavity 13 in the middle, the stator assembly 14 and the rotor assembly 15 are installed in the cavity 13, a first bearing seat 110 axially protrudes in the middle of an inner end surface of the first end plate 111, a first installation boss 115 axially protrudes in the middle of an outer end surface of the first end plate 111, a second bearing seat 120 axially protrudes in the middle of an inner end surface of the second end plate 121, a second installation boss 124 axially protrudes in the middle of an outer end surface of the second end plate 121, the bearing 17 is respectively installed in the first bearing seat 110 and the second bearing seat 120, the rotating shaft 16 is supported on the bearing 17, the first installation boss 115 and the second installation boss 124 are respectively sleeved with a damping ring 3, the first end cover 11 and the second end cover 12 are cast aluminum end covers, the outer side surface of the end part of the first sleeve part 112 is provided with at least 3 first bosses 113 at intervals, the outer side surface of the end part of the second sleeve part 122 is provided with at least 3 second bosses 123 at intervals, the first bosses 113 and the second bosses 123 are arranged in a one-to-one correspondence manner, the first bosses 113 and the second bosses 123 are provided with installation holes 10 for bolts 8 to pass through, the bolts 8 are locked on the first bosses 113 and the second bosses 123, two stretching end covers are adopted for direct installation to form a motor shell, a shell assembly is omitted, motor parts and fastening accessories are reduced, and the structure and installation process of the motor are simplified, make the assembly simple, improve assembly efficiency, reduce administrative cost, in addition, the bolt that is used for fixed motor reduces to 3 by original 4, can improve assembly efficiency.

Adopt 4 long bolts to install during the motor among the prior art, this long bolt penetrates from the second end cover, stator module through in the casing is worn out from first end cover, at last with nut threaded connection, the bolt passes inside stator, the winding end, stator core all will evade inside bolt, to the stator punching sheet, winding end sizing die has the requirement, can lead to the cost-push of motor, furthermore, the screw position that needs both ends lid aligns when the installation, and simultaneously, still need align inside stator core screw hole position, avoid the assembly process to damage the winding, can lead to the assembly efficiency of motor to reduce like this, and the technical scheme that provides in this embodiment only needs to adopt 3 relative shorter bolts of length, and fasten at the end cover lateral surface, can effectively reduce the manufacturing cost of motor, and can improve production efficiency.

Preferably, 3 first bosses 113 are circumferentially and uniformly distributed, 3 second bosses 123 are circumferentially and uniformly distributed, the mounting holes 10 on the first bosses 113 may be screw holes, the mounting holes 10 on the second bosses 123 may be through holes, and the bolts 8 pass through the through holes to be in threaded connection with the screw holes, so as to directly lock the first end cover 11 and the second end cover 12; or, the mounting hole 10 on the first boss 113 may be a through hole, the mounting hole 10 on the second boss 123 may be a screw hole, and the bolt 8 passes through the through hole and is in threaded connection with the screw hole, so as to directly lock the first end cap 11 and the second end cap 12, the structure is simple, the installation is convenient, in addition, the bolt 8 is externally arranged on the motor, the winding end part clearance shaping can be avoided, the generation of extra creepage distance is avoided, and the problem of interference between the capacitor box bolt and the mounting bolt in the case is avoided; the bolts are changed into the short bolts, so that the risk of interference between the bolts and other parts of the motor can be avoided, in addition, the bolts directly lock the end covers, the installation time can be shortened, and the production efficiency can be improved.

Preferably, the height H1 of the first end cover 11 is greater than the height H2 of the second end cover 12, the height of the end covers adopts an asymmetric structure, the stator is pressed in the first end cover 11, the size of the pressed stator and the standardization of the tooling are realized, the cost of the design and tooling dies is reduced, and the generalization of the tooling dies is improved.

Preferably, a U-shaped notch 125 is formed on the second sleeve portion 122 of the second end cap 12 to facilitate the wire guiding during assembly.

Preferably, the first sleeve part 112 is further provided with 2 buckles 6, the 2 buckles 6 are respectively arranged on 2 adjacent first bosses 113, the 2 buckles 6 are symmetrically arranged, the 2 buckles 6 and the outer side surface of the first sleeve part 112 form a clamping groove 7, a capacitance box 5 is clamped in the clamping groove 7, one end of the capacitance box 5 abuts against a limiting boss 114 arranged on the first sleeve part 112, and the capacitance box is directly clamped on the end cover, so that the structure is simplified, the use of screws is reduced, the installation step of the capacitance box is simplified, the whole assembly process of the motor is simplified, the production efficiency is improved, and the structure of the motor is more compact.

Preferably, the clamping blocks 51 are symmetrically arranged on two sides of the capacitor box 5, the clamping blocks 51 are pushed into the clamping grooves 7 during installation, so that the capacitor box 5 is clamped in the first end cover 11, the capacitor box is simple in structure and convenient to install, the capacitor box is convenient to install on a motor, the mode of fastening the capacitor box by screws is omitted, the installation steps can be simplified, the production and assembly efficiency is improved, the screws can be prevented from being exposed inside a machine shell, and therefore extra creepage distance is generated or interference occurs with the internal structure of the motor.

Preferably, the first end cap 11 and the second end cap 12 are mounted on a U-shaped bracket 2, the U-shaped bracket 2 includes a bottom plate 21 and supporting plates 22 respectively protruding upwards from two sides of the bottom plate 21, grooves 221 are formed in the supporting plates 22, and the damping ring 3 is nested in the groove 221 of the U-shaped bracket 2 and locked on the U-shaped bracket 2 through a locking device 4, so that the structure is simple and the assembly is convenient.

One side of the supporting plate 22 is inwards bent to form a second flanging 23, a first screw hole 224 is formed in the second flanging 23, the ground wire 100 led out from the motor is locked in the first screw hole 224, the ground wire 100 is directly locked in the second flanging 23 through a screw, the assembly is convenient and simple, the production efficiency can be improved, and later maintenance is facilitated.

A hook 222 is arranged on one side of the groove 221, a first flanging 223 is bent outwards on the other side of the groove 221, a second screw hole 225 is arranged on the first flanging 223, one end of the locking device 4 is clamped on the hook 222, the other end of the locking device 4 is locked on the second screw hole 225 of the first flanging 223 through a screw, the locking device 4 comprises a connecting rod 41 and 2 hoops 42, the hoops 42 are respectively welded on two ends of the connecting rod 41, the hoops 42 comprise a clamping section 422 and a connecting section 423, an arc force application section 424 tightly held on the damping ring 3 is arranged between the clamping section 422 and the connecting section 423, a bayonet 420 for clamping the hook 222 is arranged on the connecting section 423, a second through hole 421 for a screw to pass through is arranged on the clamping section 422, the connecting rod 41 is welded on the end of the clamping section 422, the assembling steps of the locking device 4 can be simplified by welding the connecting rod 41 and the hoops 42, the production efficiency is improved, the structure to U-shaped support 2 improves, and reducible staple bolt 42's use generally adopts the damping ring 3 of two staple bolts locking motors among the prior art, and improves behind the structure of U-shaped support 2 in this embodiment, makes staple bolt 42 one end and U-shaped support 2 joint, and the other end of staple bolt 42 can directly pass through screw locking, reduces staple bolt 42's use, can simplify the equipment step to can reduce the manufacturing cost of motor, improve production efficiency.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement modes, and are all included in the scope of the present invention.

Claims

1. A motor comprises a first end cover (11), a second end cover (12), a stator assembly (14), a rotor assembly (15), a rotating shaft (16) and a bearing (17), wherein the first end cover (11) comprises a first end plate (111) and a first sleeve part (112) axially protruding from the edge of the first end plate (111), the second end cover (12) comprises a second end plate (121) and a second sleeve part (122) axially protruding from the edge of the second end plate (121), the first end cover (11) and the second end cover (12) are locked through bolts (8) and form a containing cavity (13) in the middle, the stator assembly (14) and the rotor assembly (15) are installed in the containing cavity (13), a first bearing seat (110) axially protrudes from the middle of the inner end face of the first end plate (111), a first installation boss (115) axially protrudes from the middle of the outer end face of the first end plate (111), and a second bearing seat (120) axially protrudes from the middle of the inner end face of the second end plate (121), have second installation boss (124) at the middle axial protrusion of the outer terminal surface of second end plate (121), bearing (17) are installed respectively in first bearing frame (110) and second bearing frame (120), and pivot (16) support on bearing (17), and the cover is equipped with a damping ring (3), its characterized in that respectively on first installation boss (115) and second installation boss (124): the first end cover (11) and the second end cover (12) are cast aluminum end covers, at least 3 first bosses (113) are arranged on the outer side face of the end portion of the first sleeve portion (112) at intervals, at least 3 second bosses (123) are arranged on the outer side face of the end portion of the second sleeve portion (122) at intervals, the first bosses (113) and the second bosses (123) are arranged in a one-to-one correspondence mode, mounting holes (10) for bolts (8) to penetrate through are formed in the first bosses (113) and the second bosses (123), and the bolts (8) are locked on the first bosses (113) and the second bosses (123).

2. An electric machine as claimed in claim 1, characterized in that: the height H1 of the first end cap (11) is greater than the height H2 of the second end cap (12).

3. An electrical machine according to claim 2, wherein: a U-shaped notch (125) is arranged on the second sleeve part (122) of the second end cover (12).

4. A machine as claimed in claim 3, characterized in that: the 3 first bosses (113) are uniformly distributed in the circumferential direction, and the 3 second bosses (123) are uniformly distributed in the circumferential direction.

5. An electrical machine according to claim 4, wherein: still be provided with 2 buckles (6) on first sleeve section of thick bamboo portion (112), 2 buckle (6) set up respectively on 2 adjacent first boss (113), 2 buckle (6) and first sleeve section of thick bamboo portion (112) lateral surface form draw-in groove (7), have a capacitance box (5) in draw-in groove (7) joint, and the one end of capacitance box (5) is supported and is leaned on spacing boss (114) of setting in first sleeve section of thick bamboo portion (112).

6. An electric machine as claimed in claim 5, characterized in that: clamping blocks (51) are arranged on two sides of the capacitor box (5), and the clamping blocks (51) are clamped in the clamping grooves (7).

7. An electric machine as claimed in any one of claims 1 to 6, characterized in that: first end cover (11) and second end cover (12) are installed on a U-shaped support (2), U-shaped support (2) include bottom plate (21) and upwards bulge backup pad (22) respectively from bottom plate (21) both sides be equipped with recess (221) on backup pad (22), damping ring (3) nestification is on recess (221) of U-shaped support (2) and through a locking device (4) locking on U-shaped support (2).

8. An electric machine as claimed in claim 7, characterized in that: one side of the groove (221) is provided with a clamping hook (222), the other side of the groove (221) is outwards bent to form a first flanging (223), the first flanging (223) is provided with a second screw hole (225), one end of the locking device (4) is clamped on the clamping hook (222), and the other end of the locking device (4) is locked on the second screw hole (225) of the first flanging (223) through a screw.

9. An electric machine as claimed in claim 7, characterized in that: locking device (4) include connecting rod (41) and 2 staple bolts (42), staple bolt (42) weld respectively at the both ends of connecting rod (41), staple bolt (42) are including pressing from both sides tight section (422), linkage segment (423), press from both sides tight section (422) and linkage segment (423) between for holding tightly in arc application of force section (424) of damping ring (3), offer bayonet socket (420) that supply pothook (222) joint on linkage segment (423), press from both sides tight section (422) and offer second through-hole (421) that supply the screw to pass, connecting rod (41) welding is on the tip of pressing from both sides tight section (422).

10. An electric machine as claimed in claim 7, characterized in that: a second flanging (23) is bent inwards at one side of the supporting plate (22), a first screw hole (224) is formed in the second flanging (23), and a ground wire (100) led out from the motor is locked on the first screw hole (224).

11. A machine as claimed in claim 9, characterized in that: the bottom plate (21) is provided with a triangular reinforcing rib (24).