CN212033900U

CN212033900U - Mounting structure of compact direct current torque motor

Info

Publication number: CN212033900U
Application number: CN202021077239.6U
Authority: CN
Inventors: 刘炬光; 郭国鸿; 李利; 李朝辉; 吴国楠
Original assignee: Beijing Yongguang Gaote Micro Motor Co ltd
Current assignee: Beijing Yongguang Gaote Micro Motor Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2020-11-27
Anticipated expiration: 2030-06-11

Abstract

The utility model relates to a compact structure's direct current torque motor's mounting structure, establish including the pivot, the cover establish in the pivot end cover, rigid coupling are in the pivot and be located rotor assembly, the cover of end cover one end and the rigid coupling establish in the rotor assembly and the stator assembly of end cover towards rotor assembly one end and be used for the biography electric component of conduction current between rotor assembly and stator assembly, it establishes to pass the electric component cover just be located in the pivot the end cover with between the rotor assembly, the end cover orientation the confession has been seted up to the one end of passing electric component the mounting groove of passing electric component embedding, pass electric component with the connection can be dismantled to the end cover, the end cover orientation one side of rotor assembly with the rotor assembly butt. The utility model discloses it is very compact to have the motor inner structure after the installation, the effect that the whole size of motor dwindled greatly.

Description

Mounting structure of compact direct current torque motor

Technical Field

The utility model belongs to the technical field of the technique of motor and specifically relates to a compact structure's direct current torque motor's mounting structure is related to.

Background

The carbon brush holder is an important component of the motor, the function of the carbon brush holder is to apply pressure to the carbon brush which is in sliding contact with the surface of the commutator or the collecting ring through the spring, so that the carbon brush can stably conduct current between the fixed body and the rotating body, and the carbon brush is always in contact with the surface of the commutator or the collecting ring under the action of the elastic force of the spring, so that the circuit of the motor is always kept in a communicated state.

Referring to fig. 1, a motor structure commonly used at present mainly includes two end covers 1, a rotating shaft 2 is rotatably connected through the two end covers 1, a rotor assembly 3 is fixedly connected to the rotating shaft 2, the rotor assembly 3 is located between the two end covers 1, a stator assembly 4 is further fixedly connected between the two end covers 1, the stator assembly 4 is sleeved on the rotor assembly 3, a power transmission component 5 for transmitting current is arranged between the stator assembly 4 and an outer wall of the rotor assembly 3, the power transmission component 5 includes an annular brush holder 51 fixedly connected to the stator assembly 4, a reed 52 fixedly connected to an inner wall of the brush holder 51 and a carbon brush 53 fixedly connected to a side of the reed 52 far from the brush holder 51, and one end of the carbon brush 53 far from the reed 52 is abutted to the rotor assembly 3. The end of the carbon brush 53 far from the spring 52 can be always contacted with the rotor assembly 3 by the elastic force of the spring 52, so that the motor can normally operate. However, since the current electric motor has the electric conduction component 5 located between the rotor assembly 3 and the stator assembly 4, a space for installing the electric conduction component 5 needs to be left between the rotor assembly 3 and the stator assembly 4, thereby increasing the size of the whole electric motor.

With the progress of society, the specification of the motor is required to be small on some equipment at present, the internal structure of the motor is required to be very compact, and the existing motor installation mode cannot meet the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compact structure's direct current torque motor's mounting structure, its motor inner structure after the installation is very compact, and the whole size of motor reduces greatly.

The above object of the present invention can be achieved by the following technical solutions: the utility model provides a compact structure's direct current torque motor's mounting structure, includes the pivot, the cover is established epaxial end cover, rigid coupling are in the pivot and be located the rotor assembly of end cover one end, cover establish on the rotor assembly and the rigid coupling is in the stator assembly of end cover towards rotor assembly one end and be used for the biography electric component of conduction current between rotor assembly and stator assembly, it establishes to pass electric component cover pass in the pivot and be located the end cover with between the rotor assembly, the end cover orientation the confession has been seted up to the one end of passing electric component the mounting groove of passing electric component embedding, pass electric component with the connection can be dismantled to the end cover, the end cover orientation one side of rotor assembly with the rotor assembly butt.

Through adopting above-mentioned technical scheme, directly set up the mounting groove on the end cover and will pass in the electricity subassembly embedding mounting groove, need not to keep the space that supplies to pass the electricity subassembly installation between rotation assembly and stator assembly for the motor inner structure after the installation is very compact, and the whole size of motor reduces greatly.

The utility model discloses can further set up to in a preferred example: pass electric subassembly and include the brush yoke, the brush yoke is established including the cover the epaxial collar of commentaries on classics and rigid coupling the collar is kept away from the installation ear of end cover one end, the rotor assembly with leave the space that supplies the installation ear holding between the stator assembly, pass electric subassembly still includes the rigid coupling and be in the installation ear orientation the reed and the setting of rotor assembly one side are in the reed is kept away from the carbon brush of installation ear one side, the carbon brush is kept away from one side of reed with the rotor assembly butt.

By adopting the technical scheme, during use, the carbon brush is fixedly connected to the reed, then the reed is installed on one side, facing the rotor assembly, of the installation lug, then the installation lug is placed between the rotor assembly and the stator assembly, the rotor assembly can be made to brush from the carbon brush when rotating, normal operation of the motor is guaranteed, and the installation lug, the reed and the carbon brush are accommodated in a gap between the rotor assembly and the stator assembly, so that the structure is more compact, and redundant space is not wasted.

The utility model discloses can further set up to in a preferred example: the reed includes that semi-annular installation piece and rigid coupling are in the enhancement piece of installation piece one side, it is in to strengthen the piece rigid coupling the intermediate position of installation piece length, the intermediate position of reed length with the installation ear is connected.

Through adopting above-mentioned technical scheme, the holistic elasticity of reed can be strengthened in the setting of enhancement piece, reduces the probability that elastic deformation appears.

The utility model discloses can further set up to in a preferred example: the reed further comprises an auxiliary sheet fixedly connected to one side, far away from the brush holder, of the mounting sheet, and the carbon brush is fixedly connected to the auxiliary sheet.

By adopting the technical scheme, the installation area of the carbon brush and the reed can be increased by fixedly connecting the carbon brush on the auxiliary sheet, so that the installation is more stable.

The utility model discloses can further set up to in a preferred example: the two reeds are arranged and are not in contact with each other, a third mounting hole connected with the end cover is formed in the mounting ring, and the third mounting hole is located between the two reeds.

Through adopting above-mentioned technical scheme, just can be in the same place with biography electric subassembly and end cover rigid coupling through passing the bolt third mounting hole then bolted connection on the end cover, and the third mounting hole is located between two reeds for the bolt that penetrates the mounting hole also is located between two reeds, can not produce the installation work with the carbon brush of rigid coupling on the reed and just can accomplish under the condition of interfering, makes motor inner space can obtain make full use of.

The utility model discloses can further set up to in a preferred example: the installation lug is provided with a first installation hole, the middle part of the reed is provided with a second installation hole coinciding with the axis of the first installation hole, and the first installation hole and the second installation hole are detachably connected with an installation bolt.

By adopting the technical scheme, the mounting lug and the reed can be connected into a whole through the mounting bolt, the assembly and disassembly are very convenient, and the reed and the carbon brush can be conveniently replaced when the reed is elastically deformed or the carbon brush is abraded.

The utility model discloses can further set up to in a preferred example: the first mounting hole is a tapered hole, and the diameter of the first mounting hole is gradually reduced from the side far away from the reed to the side close to the reed.

Through adopting above-mentioned technical scheme, during the use mounting bolt penetrates from the one side that the reed is kept away from to the installation ear, and mounting bolt after the installation sinks in the bell mouth of first mounting hole, does not occupy too much space.

To sum up, the utility model discloses a beneficial technological effect does:

1. the power transmission assembly is directly installed in the installation groove on the end cover, and excessive space is not occupied, so that the internal structure of the installed motor is very compact, and the overall size of the motor is greatly reduced;

2. the arrangement of the reinforcing sheet can increase the elasticity of the whole reed, reduce the probability of elastic deformation of the reed and prolong the service life of the reed;

3. the third mounting hole is formed between the two reeds, so that the carbon brush cannot be interfered by the mounting bolt penetrating through the third mounting hole, and the space inside the motor can be fully utilized.

Drawings

FIG. 1 is a schematic diagram of a conventional motor construction;

FIG. 2 is a schematic front view of a half-section of the motor of the present invention;

fig. 3 is a schematic diagram of a structure of a middle power transmission assembly according to the present invention.

In the figure, 1, end cap; 11. mounting grooves; 2. a rotating shaft; 3. a rotor assembly; 4. a stator assembly; 5. a power transmission assembly; 51. a brush holder; 511. a mounting ring; 5111. a third mounting hole; 512. mounting lugs; 5121. a first mounting hole; 52. a reed; 521. mounting a sheet; 522. a reinforcing sheet; 523. an auxiliary sheet; 524. a second mounting hole; 525. installing a bolt; 526. mounting a nut; 53. a carbon brush.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, for the utility model discloses a compact structure's direct current torque motor's mounting structure, including end cover 1, pivot 2, rotor assembly 3, stator assembly 4 and biography electric subassembly 5. The rotating shaft 2 penetrates through two ends of the end cover 1 and is rotatably connected with the end cover 1, the rotor assembly 3 is fixedly connected to the rotating shaft 2 and is located at one end of the end cover 1, the stator assembly 4 is sleeved on the rotor assembly 3 and is fixedly connected with one end of the end cover 1, the electricity transmission component 5 is located between the end cover 1 and the rotor assembly 3, and meanwhile, a mounting groove 11 for embedding the electricity transmission component 5 is formed in one end of the end cover 1, facing the rotor assembly 3.

Referring to fig. 2 and 3, the electricity transmission assembly 5 includes a brush holder 51 detachably connected to the end cover 1, a reed 52 detachably connected to the brush holder 51, and a carbon brush 53 fixedly connected to one side of the reed 52 away from the brush holder 51, wherein the brush holder 51 includes a mounting ring 511 sleeved on the rotating shaft 2 and a mounting lug 512 fixedly connected to one end of the mounting ring 511 away from the end cover 1, two mounting lugs 512 are provided, the two mounting lugs 512 are symmetrically distributed along an axis of the mounting ring 511, the reed 52 is provided with two mounting lugs respectively mounted on one side opposite to the two mounting lugs 512, four carbon brushes 53 are provided, and two are in one group and are respectively fixedly connected to two ends of each reed 52. A gap for placing the mounting lug 512, the spring leaf 52 and the carbon brush 53 is reserved between the rotor assembly 3 and the stator assembly 4, and one side of the carbon brush 53 far away from the spring leaf 52 is abutted with the rotor assembly 3. When the rotor assembly 3 rotates, the carbon brush 53 also slides on the outer wall of the rotor assembly 3, and the carbon brush 53 is always abutted against the rotor assembly 3 by the reed 52.

Referring to fig. 3, the two spring leaves 52 are not in contact with each other, the mounting ring 511 is provided with two third mounting holes 5111 for connecting with the end cover 1, the third mounting holes 5111 are located between the two spring leaves 52, the brush holder 51 can be mounted on the end cover 1 by passing bolts through the third mounting holes 5111 and screwing the bolts onto the end cover 1, and meanwhile, since the third mounting holes 5111 are located between the two spring leaves 52, the bolts mounted in the third mounting holes 5111 are also located between the two spring leaves 52, interference to the carbon brushes 53 mounted on the spring leaves 52 is avoided, and an extra space is not occupied by the bolts mounted in the gaps between the two spring leaves 52.

Each mounting lug 512 is provided with a first mounting hole 5121, the diameter of the first mounting hole 5121 is a tapered hole and gradually decreases from one end far away from the reed 52 to one end close to the reed 52, meanwhile, the middle of the reed 52 is provided with a second mounting hole 524 with the same minimum diameter as that of the first mounting hole 5121, a mounting bolt 525 is inserted and matched in the first mounting hole 5121 and the second mounting hole 524, a mounting nut 526 is connected to the mounting bolt 525 in a threaded manner, when the reed 52 is mounted on the mounting lug 512, the axes of the first mounting hole 5121 and the second mounting hole 524 are overlapped, and then a worker directly inserts the mounting bolt 525 into the first mounting hole 5121 and the second mounting hole 524 from one side of the mounting lug 512 far away from the reed 52 and fixes the mounting bolt through the mounting nut 526. The mounting bolt 525 is a tapered bolt, and after the spring plate 52 is fixed on the mounting lug 512 through the mounting bolt 525, the bolt head of the mounting bolt 525 is also sunk into the first mounting hole 5121, so that the excessive space is not occupied, and the whole structure is more compact.

Referring to fig. 3, the spring leaf 52 includes a rectangular mounting piece 521, a reinforcing piece 522 fixedly connected to the middle of one side of the mounting piece 521, and two auxiliary pieces 523 fixedly connected to one side of the mounting piece 521 and fixedly connected to the reinforcing piece 522, wherein the two auxiliary pieces 523 are respectively located at two ends of the mounting piece 521, and the first mounting hole 5121 is formed at the intersection of the spring leaf 52 and the reinforcing piece 522, so that the connection strength of the spring leaf 52 can be increased, and meanwhile, since the elastic force bearing point of the spring leaf 52 is fixedly connected to the mounting lug 512, the arrangement of the reinforcing piece 522 can also increase the overall elasticity of the spring leaf 52, and reduce the probability of elastic deformation of the spring leaf 52.

The two ends of the reed 52 are further fixedly connected with the auxiliary sheets 523, and the carbon brush 53 is fixedly connected to the auxiliary sheets 523, so that the installation area of the carbon brush 53 and the reed 52 can be increased, and the installation is more stable.

During production and installation, only gaps for accommodating the installation lugs 512, the spring plates 52 and the carbon brushes 53 are required to be reserved between the stator assembly 4 and the rotor assembly 3, and the installation groove 11 for embedding the installation ring 511 is formed in the end cover 1, so that the electricity transmission component 5 can be installed in the installation groove 11 and the gaps between the stator assembly 4 and the rotor assembly 3, and the arrangement of the first installation hole 5121 in a conical shape and the arrangement of the first installation hole 5121 between the two spring plates 52 further enable the structure of the electricity transmission component 5 to be more compact, the internal space in the motor is fully utilized, and the size of the whole motor is greatly reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a compact structure's direct current torque motor's mounting structure, includes pivot (2), the cover is established end cover (1), rigid coupling on pivot (2) are in rotor assembly (3), the cover that just is located end cover (1) one end are established on rotor assembly (3) and rigid coupling in end cover (1) towards stator assembly (4) of rotor assembly (3) one end and be used for passing electric component (5) of conduction current between rotor assembly (3) and stator assembly (4), its characterized in that: pass electric component (5) cover and establish in pivot (2) and be located end cover (1) with between rotor assembly (3), end cover (1) orientation the confession has been seted up to the one end of passing electric component (5) mounting groove (11) that pass electric component (5) embedding, pass electric component (5) with end cover (1) can be dismantled the connection, end cover (1) orientation one side of rotor assembly (3) with rotor assembly (3) butt.

2. The mounting structure of a dc torque motor according to claim 1, wherein: pass electric subassembly (5) including brush yoke (51), brush yoke (51) establish including the cover collar (511) and rigid coupling on pivot (2) collar (511) are kept away from installation ear (512) of end cover (1) one end, rotor assembly (3) with leave the space that supplies installation ear (512) holding between stator assembly (4), pass electric subassembly (5) and still include the rigid coupling and be in installation ear (512) orientation reed (52) and the setting of rotor assembly (3) one side are in reed (52) are kept away from carbon brush (53) of installation ear (512) one side, carbon brush (53) are kept away from one side of reed (52) with rotor assembly (3) butt.

3. The mounting structure of a dc torque motor according to claim 2, wherein: the spring plate (52) comprises a semi-annular mounting piece (521) and a reinforcing piece (522) fixedly connected to one side of the mounting piece (521), the reinforcing piece (522) is fixedly connected to the middle position of the length of the mounting piece (521), and the middle position of the length of the spring plate (52) is connected with the mounting lug (512).

4. A mounting structure of a dc torque motor of a compact structure according to claim 3, wherein: the reed (52) further comprises an auxiliary sheet (523) fixedly connected to one side, far away from the brush holder (51), of the mounting sheet (521), and the carbon brush (53) is fixedly connected to the auxiliary sheet (523).

5. The mounting structure of a dc torque motor according to claim 2, wherein: the number of the reeds (52) is two, the two reeds (52) are not in contact with each other, a third mounting hole (5111) connected with the end cover (1) is formed in the mounting ring (511), and the third mounting hole (5111) is located between the two reeds (52).

6. The mounting structure of a dc torque motor according to claim 2, wherein: the installation lug (512) is provided with a first installation hole (5121), the middle part of the reed (52) is provided with a second installation hole (524) which is coincided with the axis of the first installation hole (5121), and the first installation hole (5121) and the second installation hole (524) are detachably connected with an installation bolt (525).

7. The mounting structure of a dc torque motor according to claim 6, wherein: the first mounting hole (5121) is a tapered hole, and the diameter of the first mounting hole is gradually reduced from the side far away from the spring plate (52) to the side close to the spring plate (52).