CN213425954U

CN213425954U - Novel brushless motor

Info

Publication number: CN213425954U
Application number: CN202022204053.9U
Authority: CN
Inventors: 袁小存; 袁贤涛
Original assignee: Ningbo Xingyu Motor Manufacturing Co ltd
Current assignee: Ningbo Xingyu Motor Manufacturing Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-11
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a novel brushless motor, including motor element, this motor element includes motor casing, stator, rotor, motor shaft and protecgulum, and the protecgulum is connected in motor casing's front end, and in the motor casing was located to the stator, on the motor shaft was located to the rotor, on the protecgulum outside fixedly connected with gear shaft support was equipped with the gear shaft on this gear shaft support, the motor shaft was worn out stretch into behind the protecgulum gear shaft support and with the gear shaft meshing, the gear shaft is equipped with and follows gear shaft pivoted eccentric bearing. The utility model discloses at motor element's protecgulum fixedly connected with gear shaft support, this shaft support is equipped with eccentric bearing through the gear shaft, and motor shaft output is stable, simple structure, and the cost is lower, can make it have stronger commonality through replacing eccentric bearing.

Description

Novel brushless motor

Technical Field

The utility model relates to the technical field of motors, in particular to novel brushless motor.

Background

The motor for driving the diaphragm pump or the diaphragm air compressor is generally provided with an eccentric driving wheel on a motor shaft, and drives a crank link mechanism to operate through the eccentric driving wheel. In order to solve the problem, the prior art adopts an additional gearbox mechanism, and a motor shaft drives an actuating mechanism to operate through gearbox transmission, but the additional gearbox mode undoubtedly increases the manufacturing and maintenance cost, and has a complex structure and low universality.

Disclosure of Invention

The utility model aims at providing a novel brushless motor, its protecgulum fixedly connected with gear shaft support at motor element, this wheel shaft support is equipped with eccentric bearing through the gear shaft, and motor element's motor shaft and gear shaft meshing are in order to drive eccentric bearing and make the beat motion, and this novel brushless motor's motor shaft output is stable, and the simple structure, the cost is lower, can make it have stronger commonality through replacing eccentric bearing.

In order to achieve the above object, the present invention provides the following technical solutions.

The utility model provides a novel brushless motor, includes motor element, this motor element includes motor casing, stator, rotor, motor shaft and protecgulum, and the protecgulum is connected in motor casing's front end, and in the motor casing was located to the stator, on the motor shaft was located to the rotor, on the protecgulum outside fixedly connected with gear shaft support, the last gear shaft that is equipped with of this gear shaft support, the motor shaft is worn out stretch into behind the protecgulum gear shaft support and with the gear shaft meshing, the gear shaft be equipped with along gear shaft pivoted eccentric bearing.

Furthermore, a first bearing and a second bearing are respectively arranged at two ends of the gear shaft, a first bearing seat for accommodating the first bearing is arranged on the gear shaft support, and a second bearing seat for accommodating the second bearing is arranged on the front cover. The gear shaft is supported on the gear shaft support through the bearings at the two ends of the gear shaft, so that the structure is firmer, and the eccentric bearing is more stable in deflection motion.

Furthermore, the gear shaft comprises a mandrel and a transmission gear, wherein two ends of the mandrel are respectively connected with the first bearing and the second bearing, the transmission gear is in key connection with the mandrel, shaft teeth meshed with the transmission gear are arranged on the part, extending out of the front cover, of the motor shaft, and the eccentric bearing is arranged between the first bearing and the transmission gear. The gear shaft is connected with the transmission gear by adopting a mandrel, so that the assembly is facilitated, and the eccentric bearing can be replaced as a power output component as required, so that the universality of the motor is better.

Preferably, the front cover is provided with an installation part matched with the gear shaft bracket, and the gear shaft bracket is fixedly connected with the installation part of the front cover through a bracket screw. The installation part can adopt a step groove matched with the shape of the gear shaft bracket, namely, the gear shaft bracket is limited through the step groove, and then is fixedly connected with the front cover through a bracket screw, so that the connection structure of the gear shaft bracket and the front cover is more stable.

Furthermore, the front cover is fixedly connected with the motor shell through a front cover screw, a third bearing and a fourth bearing are respectively arranged at two ends of the motor shaft, the front cover is provided with a third bearing seat for accommodating the third bearing, and the motor shell is provided with a fourth bearing seat for accommodating the fourth bearing; the front end of the motor shaft is provided with an oil seal, and the front cover is also provided with an oil seal groove for accommodating the oil seal. The bearings at the two ends of the motor shaft can ensure stable operation of the motor assembly, the oil seal plays a role in shaft sealing for the motor shaft, the first bearing seat and the third bearing seat are arranged by utilizing the front cover, the mounting space of the front cover is fully utilized, the whole structure of the motor is more compact, and the motor is beneficial to size miniaturization.

Preferably, a motor outer cover is arranged on one side, located on the motor shell, of the front cover, the motor assembly is integrally installed in the motor outer cover, the motor shaft is provided with axial flow fan blades, and the motor outer cover is provided with air inlets corresponding to the axial flow fan blades. The motor outer cover plays a protective role on the motor assembly, and plays a role in collecting wind power on the axial flow fan blades, so that the heat dissipation of the motor assembly is facilitated.

Furthermore, a heat dissipation plate is arranged in the motor outer cover, the motor outer cover is divided into an upper accommodating cavity and a lower accommodating cavity by the heat dissipation plate, the motor assembly is integrally arranged in the upper accommodating cavity, and a circuit board is arranged in the lower accommodating cavity corresponding to the heat dissipation plate. And a bottom plate is arranged at the bottom of the motor outer cover, so that the lower cavity forms a closed cavity. And a power switch, a speed-regulating potentiometer and a waterproof power connector are arranged at the position of the lower cavity of the motor outer cover. This motor housing adopts the upper portion of spaced to hold chamber and lower part to hold the chamber, separately installs electrical components such as motor element and circuit board, and safe and reliable more, the usable heating panel of circuit board effectively dispels the heat in addition, and the usable axial fan blade of heating panel effectively dispels the heat again for motor heat dispersion promotes by a wide margin.

Preferably, the protecgulum is connected with the handle, and the portable, the periphery of protecgulum is equipped with a plurality of heat dissipation muscle, further strengthens the radiating effect.

Compared with the prior art, the beneficial effects of the utility model are that: the gear shaft bracket is fixedly connected to the outer side of the front cover of the motor assembly, the gear shaft bracket is provided with a gear shaft meshed with the motor shaft, and the gear shaft is provided with an eccentric bearing used as a power output part, namely, the motor shaft drives the gear shaft to rotate in a gear meshing mode, and then the gear shaft drives the eccentric bearing to perform deflection motion to output power.

Drawings

Fig. 1 is a schematic view of the assembly structure of the present invention.

Fig. 2 is a schematic structural diagram of a motor assembly part of the present invention.

Fig. 3 is a schematic structural view of a gear shaft support part of the present invention.

Fig. 4 is a schematic structural view of the front end face of the present invention.

Fig. 5 is a schematic side view of the motor housing of the present invention.

Fig. 6 is a schematic diagram of a rear end face structure of the motor housing of the present invention.

In the figure, 11, a motor housing, 12, a stator, 13, a rotor, 14, a motor shaft, 141, a shaft tooth, 15, a front cover, 151, a second bearing seat, 152, a mounting part, 153, a heat dissipation rib, 16, an axial flow fan blade, 17, a fourth bearing, 171, a fourth bearing seat, 18, a third bearing, 181, a third bearing seat, 19, an oil seal, 191, an oil seal groove, 21, a gear shaft bracket, 211, a bracket screw, 212, a first bearing seat, 22, a gear shaft, 23, a first bearing, 24, a second bearing, 25, a transmission gear, 26, an eccentric bearing, 31, a motor outer cover, 311, an outer cover screw, 312, an air inlet, 32, a heat dissipation plate, 33, a circuit board, 34, a bottom plate, 341, a support leg, 41, a handle, 42, a power switch, 43, a speed regulation potentiometer and 44 are waterproof power connectors.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 to 6, a novel brushless motor includes a motor assembly, the motor assembly includes a motor housing 11, a stator 12, a rotor 13, a motor shaft 14 and a front cover 15, the stator 12 is disposed in the motor housing 11, the rotor 13 is disposed on the motor shaft 14, the front cover 15 is fixedly connected to the front end of the motor housing 11 through a front cover screw, the front end of the motor shaft 14 extends out of the front cover 15, the front end of the motor shaft 14 is provided with a shaft tooth 141, the rear end of the motor shaft 14 extends out of the motor housing 11, the rear end of the motor shaft 14 is connected with an axial flow fan blade 16, two ends of the motor shaft 14 are respectively provided with a third bearing 18 and a fourth bearing 17, the front cover 15 is provided with a third bearing seat 181 accommodating the third bearing 18, and the motor housing 11 is provided with a; the front end of the motor shaft 14 is provided with an oil seal 19, and the front cover 15 is further provided with an oil seal groove 191 accommodating the oil seal 19.

The gear shaft support 21 is fixedly connected to the outer side of the front cover 15, specifically, the front cover 15 is provided with a mounting portion 152 matched with the gear shaft support 21, in the embodiment, the mounting portion 152 is a circular step groove, and the gear shaft support 21 is fixedly connected with the mounting portion 152 of the front cover 15 through a support screw 211. The gear shaft support 21 is provided with a gear shaft 22, the gear shaft 22 comprises a mandrel and a transmission gear 25 connected with the mandrel in a key manner, the motor shaft 14 penetrates out of the front cover 15 and then extends into the gear shaft support 21, a shaft tooth 141 of the motor shaft 14 is meshed with the transmission gear 25, two ends of the mandrel are respectively provided with a first bearing 23 and a second bearing 24, the gear shaft support 21 is provided with a first bearing seat 212 for accommodating the first bearing 23, the front cover 15 is provided with a second bearing seat 151 for accommodating the second bearing 24, the mandrel of the gear shaft 22 is provided with an eccentric bearing 26 rotating along with the gear shaft 22, and the eccentric bearing 26 is arranged between the first bearing 23 and the transmission gear 25.

In this embodiment, a motor housing 31 is disposed on one side of the motor housing 11 of the front cover 15, the motor housing 31 is fixedly connected to the front cover 15 through a housing screw 311, the motor assembly is integrally installed in the motor housing 31, and an air inlet 312 corresponding to the axial-flow fan blade 16 is disposed on the rear side of the motor housing 31.

The motor assembly is characterized in that a heat dissipation plate 32 is arranged in the motor housing 31, the heat dissipation plate 32 divides the motor housing 31 into an upper accommodating cavity and a lower accommodating cavity, the motor assembly is integrally arranged in the upper accommodating cavity, a circuit board 33 is arranged in the lower accommodating cavity corresponding to the heat dissipation plate 32, a bottom plate 34 is arranged at the bottom of the motor housing 31, so that the lower accommodating cavity forms a closed cavity, and the bottom plate 34 is provided with support legs 341. The motor housing 31 is provided with a power switch 42, a speed-regulating potentiometer 43 and a waterproof power connector 44 at the lower cavity. The front cover 15 is connected with a handle 41, and a plurality of heat dissipation ribs 153 are arranged on the periphery of the front cover 15.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a novel brushless motor, includes motor element, this motor element includes motor casing (11), stator (12), rotor (13), motor shaft (14) and protecgulum (15), and protecgulum (15) are connected in the front end of motor casing (11), and in motor casing (11) was located in stator (12), on motor shaft (14) was located in rotor (13), its characterized in that: a gear shaft support (21) is fixedly connected to the outer side of the front cover (15), a gear shaft (22) is arranged on the gear shaft support (21), the motor shaft (14) penetrates out of the front cover (15) and then extends into the gear shaft support (21) and is meshed with the gear shaft (22), and an eccentric bearing (26) rotating along with the gear shaft (22) is arranged on the gear shaft (22).

2. A novel brushless electric machine according to claim 1, characterized in that: the two ends of the gear shaft (22) are respectively provided with a first bearing (23) and a second bearing (24), the gear shaft support (21) is provided with a first bearing seat (212) for accommodating the first bearing (23), and the front cover (15) is provided with a second bearing seat (151) for accommodating the second bearing (24).

3. A novel brushless electric machine according to claim 2, characterized in that: the gear shaft (22) comprises a mandrel and a transmission gear (25), wherein two ends of the mandrel are respectively connected with the first bearing and the second bearing, the transmission gear (25) is in key connection with the mandrel, shaft teeth (141) meshed with the transmission gear (25) are arranged on the part, extending out of the front cover (15), of the motor shaft (14), and the eccentric bearing (26) is arranged between the first bearing (23) and the transmission gear (25).

4. A novel brushless electric machine according to claim 1, characterized in that: the front cover (15) is provided with a mounting part (152) matched with the gear shaft support (21), and the gear shaft support (21) is fixedly connected with the mounting part (152) of the front cover (15) through a support screw (211).

5. A novel brushless electric machine according to claim 1 or 4, characterized in that: the front cover (15) is fixedly connected with the motor shell (11) through a front cover screw, a third bearing (18) and a fourth bearing (17) are respectively arranged at two ends of the motor shaft (14), the front cover (15) is provided with a third bearing seat (181) for accommodating the third bearing (18), and the motor shell (11) is provided with a fourth bearing seat (171) for accommodating the fourth bearing (17); the front end of the motor shaft (14) is provided with an oil seal (19), and the front cover (15) is also provided with an oil seal groove (191) for accommodating the oil seal (19).

6. A novel brushless electric machine according to claim 1, characterized in that: the motor is characterized in that a motor outer cover (31) is arranged on one side, located on the motor shell (11), of the front cover (15), the motor assembly is integrally arranged in the motor outer cover (31), the motor shaft (14) is provided with axial flow fan blades (16), and the motor outer cover (31) is provided with air inlets (312) corresponding to the axial flow fan blades (16).

7. The novel brushless electric machine of claim 6, wherein: the motor is characterized in that a heat dissipation plate (32) is arranged in the motor housing (31), the motor housing (31) is divided into an upper portion containing cavity and a lower portion containing cavity by the heat dissipation plate (32), the motor assembly is integrally arranged in the upper portion containing cavity, and a circuit board (33) is arranged in the lower portion containing cavity and corresponds to the heat dissipation plate (32).

8. The novel brushless electric machine of claim 7, wherein: and a bottom plate (34) is arranged at the bottom of the motor housing (31) so that the lower cavity forms a closed cavity.

9. A novel brushless electric machine according to claim 8, wherein: and a power switch (42), a speed regulation potentiometer (43) and a waterproof power connector (44) are arranged at the position of the motor outer cover (31) in the lower cavity.

10. A novel brushless electric machine according to claim 1, characterized in that: the front cover (15) is connected with a handle (41), and a plurality of heat dissipation ribs (153) are arranged on the periphery of the front cover (15).