CN213270887U

CN213270887U - Speed reduction and torque increasing device

Info

Publication number: CN213270887U
Application number: CN202021556623.4U
Authority: CN
Inventors: 胡智武; 万鹏
Original assignee: Keboda Chongqing Automobile Electronics Co ltd
Current assignee: Keboda Chongqing Automobile Electronics Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-05-25
Anticipated expiration: 2030-07-31

Abstract

The application discloses a speed-reducing torque-increasing device, which comprises a shell and a shell sealing cover, wherein the shell is provided with an interface, the interface is internally provided with a metal joint, the metal joint is connected with a stator component, one end of the interior of the shell, which is close to the interface, is provided with a circular groove for installing the stator component and a rotor component, the rotor component is sleeved on a rotor rotating shaft, the shell is provided with a first gear rotating shaft limiting column, the first gear rotating shaft limiting column passes through a stator component positioning hole, the first gear rotating shaft limiting column is provided with a first rotating shaft, the upper surfaces of the stator component and the rotor component are covered with a PCB board, the PCB board is provided with a through hole for the rotor gear and the first rotating shaft to pass through, the utility model reduces the whole installation space, reduces the design cost, and also carries out the layout design of, the gear center distance is greatly reduced, and the space layout of a gear rotating system in the whole shell is shrunk.

Description

Speed reduction and torque increasing device

Technical Field

The application relates to the field of automobile parts, in particular to a speed reduction and torque increase device.

Background

With the development of the automobile industry, dozens of stepping motors or servo motors inside automobiles gradually develop from brushed direct current motors to permanent magnet brushless direct current motors, and due to limited spatial layout, the requirements on a servo system are higher and higher, such as control precision, response time, performance indexes, integration degree, vibration noise, electromagnetic interference and the like.

Some stator assemblies of the existing permanent magnet brushless direct current motor are installed in a special shell of the motor and then are fixed to the shell, and the stator assemblies are directly injected and form an exposed mounting bracket by injection molding and then are fixed to the shell. The former requires higher cost to support the design of the dedicated housing and also increases weight; the latter is the stator module fixed mode that current little special motor is more commonly used, but because the installation skeleton of moulding plastics can occupy the space beyond the stator module external diameter, can lead to whole stator module installation space increase, leads to whole product volume grow. The cost is also increased.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a speed reduction increases square ware adopts high power density and torque density's permanent magnetism brushless DC motor, matches multistage gear speed reduction system to integrated design control circuit, with control, motor, the integrated design of transmission in compact box, realize intelligent control's high progress servo, mainly used automobile door and window goes up and down, skylight switching, electron brake, electron power assisted steering, initiative air-inlet grille etc. on the servo. The application discloses the following technical scheme:

the application discloses a speed reduction torque increaser, which comprises a shell and a shell sealing cover, wherein the shell is provided with an interface, the interface is internally provided with a metal joint, the metal joint is connected with a stator component, one end of the interior of the shell, which is close to the interface, is provided with a circular groove for installing the stator component and a rotor component, the other end is provided with a flower tooth installation groove, the circle center of the circular groove is provided with a rotor rotating shaft, the flower tooth installation groove is provided with flower teeth, the rotor component is sleeved on the rotor rotating shaft, the stator component is sleeved on the rotor component, the stator component and the rotor component are coaxially installed, the stator component is in a circular ring shape, the stator component circular ring is provided with at least two positioning holes, the stator component positioning holes are symmetrically distributed according to the circle center, the shell is provided with a gear first, the gear is characterized in that a first rotating shaft is arranged on the first rotating shaft limiting column of the gear, a PCB is covered on the upper surface of the stator assembly and the rotor assembly, and a through hole for the rotor gear and the first rotating shaft to pass through is formed in the PCB.

In one possible embodiment, the circular groove of the shell for installing the stator assembly and the rotor assembly is provided with a threaded hole matched with the positioning hole of the stator assembly, and the stator assembly is connected with the shell by a bolt penetrating through the positioning hole of the stator assembly.

In a possible embodiment, a first gear assembly is sleeved on the first rotating shaft, the first gear assembly is divided into an upper gear and a lower gear, and the lower gear of the first gear assembly is meshed with the rotor gear.

In a possible implementation manner, a gear second rotating shaft limiting column is arranged on the shell, a second rotating shaft is installed on the gear second rotating shaft limiting column, a second gear assembly is sleeved on the second rotating shaft, the second gear assembly is divided into an upper gear and a lower gear, and the upper gear of the second gear assembly is meshed with the upper gear of the first gear assembly.

In a possible implementation manner, a third rotating shaft limiting column is arranged on the shell, a third rotating shaft is arranged on the third rotating shaft limiting column, a third gear assembly is sleeved on the third rotating shaft, the third gear assembly is divided into an upper gear and a lower gear, and the upper gear of the third gear assembly is meshed with the lower gear of the second gear assembly.

In a possible implementation manner, a fourth rotating shaft limiting column is arranged on the shell, a fourth rotating shaft is arranged on the fourth rotating shaft limiting column, a fourth gear assembly is sleeved on the fourth rotating shaft and is divided into an upper gear and a lower gear, and the lower gear of the fourth gear assembly is meshed with the lower gear of the third gear assembly.

In a possible embodiment, the spline mounting groove is provided with a spline, and the spline is meshed with an upper gear of the fourth gear assembly.

In a possible implementation mode, the surface of the spline tooth is provided with a spline, the shell is covered with a through hole, the spline tooth penetrates through the through hole, and the through hole is provided with an annular fixing block.

In a possible embodiment, the gear second shaft limiting column is disposed near the edge of the circular groove for mounting the stator assembly and the rotor assembly, the gear fourth shaft limiting column is disposed near the edge of the spline mounting groove, and the gear third shaft limiting column is disposed between the gear fourth shaft limiting column and the gear second shaft limiting column.

In a possible embodiment, the housing is provided with at least one catch for connecting the housing cover.

The application discloses a speed reduction increases square ware has following beneficial effect: through installing the design in stator module inner space, let the mounting hole arrange stator module's inside in, not only reduced whole installation space, improved the compact degree of product, still carried out the lightweight design to stator module, reduced design cost. The utility model discloses not only there is technical innovation on the fixed mode of installation, still carries out gear combination's overall arrangement design with one of them mounting hole, has reduced the gear centre-to-centre spacing greatly, has shrunk the gear rotation system spatial layout in the whole casing, realizes product lightweight design. The utility model discloses an occupy littleer installation space, realized high-efficient transmission, intelligent control, be a high new technology result that the integrated level is high.

Drawings

The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining and illustrating the present application and should not be construed as limiting the scope of the present application.

FIG. 1 is a perspective exploded view of a deceleration moment increaser;

FIG. 2 is an exploded front perspective view of the deceleration moment increaser;

FIG. 3 is a top view of the deceleration moment increaser without a housing cover and with the PCB board hidden;

FIG. 4 is a top view of the gear structure of the reduction moment increaser;

FIG. 5 is a schematic diagram of a hidden PCB structure of a housing of the deceleration moment increaser;

FIG. 6 is a top view of a housing cover of the deceleration moment increaser.

Reference numerals: 1-shell, 2-interface, 3-shell cover plate, 4-annular fixed block, 5-stator component, 6-rotor component, 7-pcb, 8-metal joint, 9-rotor rotating shaft, 10-first rotating shaft, 11-second rotating shaft, 12-third rotating shaft, 13-fourth rotating shaft, 14-rotor gear, 15-first gear assembly, 16-second gear assembly, 17-third gear assembly, 18-fourth gear assembly, 19-spline, 20-spline, 21-gear first rotating shaft limiting column, 22-gear second rotating shaft limiting column, 23-gear third rotating shaft limiting column, 24-gear fourth rotating shaft limiting column, 25-spline mounting groove and 26-stator assembly positioning hole.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.

A deceleration moment increaser disclosed in the present application is described in detail below with reference to fig. 1 to 6.

The speed reduction and torque increase device disclosed in this embodiment, as shown in fig. 1, fig. 2 and fig. 3, includes a housing 1 and a housing cover 3, the housing 1 is provided with a port 2, a metal joint 8 is provided in the port 2, the metal joint 8 is connected with a stator assembly 5, one end of the housing 1 near the port 2 is provided with a circular groove for mounting the stator assembly 5 and a rotor assembly 6, the other end is provided with a spline mounting groove 25, a rotor spindle 9 is provided at a center of the circular groove, the spline mounting groove 25 is provided with a spline 19, the rotor assembly 6 is sleeved on the rotor spindle 9, the stator assembly 5 is sleeved on the rotor assembly 6, the stator assembly 5 and the rotor assembly 6 are coaxially mounted, the stator assembly 5 is in a circular ring shape, the circular ring of the stator assembly 5 is provided with at least two stator assembly positioning holes 26, the stator assembly positioning holes 26, the gear first rotating shaft limiting column 21 penetrates through the stator assembly positioning hole 26, the first rotating shaft 10 is arranged on the gear first rotating shaft limiting column 21, as shown in fig. 4, the upper surfaces of the stator assembly 5 and the rotor assembly 6 are covered with the PCB 7, and the PCB 7 is provided with a through hole for the rotor gear 14 and the first rotating shaft 10 to penetrate through.

In this application, as shown in fig. 6, casing 1 is divided into two parts, the front end sets up to interface 2, interface 2 is used for connecting the control system of car control system or other devices, interface 2 is inside sunken draw-in groove, the draw-in groove the inside sets up has four metal joint 8, external device is connected to four metal joint 8 one ends, stator module 5 is connected to the other end, casing 1's rear end is sunken oval recess, the inside each spare part that sets up whole device of recess, in casing 1's the oval recess, anterior part sets up power device: stator module 5 and rotor subassembly 6, the rear portion sets up power take off: the spline 19 and the spline 20 arranged on the spline 19 are used as the output end to transmit large torque, and the power device is connected with the output device through the arranged multi-stage gears.

Simultaneously compare with prior art in this application, wherein the stator module locating hole is the through-hole that supplies the spacing post 21 installation of the first pivot of gear, through passing stator module 5 with the spacing post 21 of the first pivot of gear, make the first gear assembly on the spacing post 21 of the first pivot of gear can set up on the stator module 5 like this, this stator module locating hole 26 that is passed is close to the spacing post 21 of the first pivot of gear, installation space has been saved in the design like this, because among the prior art, stator module 5 upper surface does not take the gear during, and design like this just can reduce the gear and take to the space.

The stator assembly 5 and the rotor assembly 6 are covered with a layer of PCB 7, the PCB 7 can cover the stator assembly 5 and the rotor assembly 6, and the PCB 7 is provided with a plurality of through holes, wherein the through holes can be used for a rotor gear 14 and a gear first rotating shaft limiting column 21 arranged on the rotor assembly 6. Wherein the first gear assembly 15 is located on the upper surface of the PCB board 7.

In one possible embodiment, the circular grooves of the housing 1 for mounting the stator assembly 5 and the rotor assembly 6 are provided with threaded holes matching the stator assembly positioning holes 26, and the stator assembly 5 is connected with the housing 1 by bolts passing through the stator assembly positioning holes 26.

Wherein the housing 1 fixes the stator assembly 5 on the housing 1 through bolts, and the rotor assembly 6 is limited in the stator assembly 5 through the rotor rotating shaft 9, thereby ensuring the stability of the rotor assembly 6.

In a possible embodiment, the first gear assembly 15 is sleeved on the first rotating shaft 10, the first gear assembly 15 is divided into an upper gear and a lower gear, and the lower gear of the first gear assembly 15 is meshed with the rotor gear 14.

In the gear combination of this application, all misplace from top to bottom through big pinion and realize multistage meshing, and big, the pinion all is coaxial design, and first gear assembly 15 is established to the cover on the

first pivot

10, and 15 upper ends of first gear assembly are the pinion, and the lower extreme is the gear wheel, and the gear wheel of 15 lower extremes of first gear assembly is used for meshing with rotor gear 14.

In a possible embodiment, a gear second rotating shaft limiting column 22 is arranged on the housing 1, the second rotating shaft 11 is mounted on the gear second rotating shaft limiting column 22, a second gear assembly 16 is sleeved on the second rotating shaft 11, the second gear assembly 16 is divided into an upper gear and a lower gear, and the upper gear of the second gear assembly 16 is meshed with the upper gear of the first gear assembly 15.

The second rotating shaft limiting column 22 arranged on the shell 1 is mainly used for installing the second rotating shaft 11, the second gear assembly 16 arranged on the second rotating shaft 11 is coaxially designed into a big gear and a small gear, the upper end of the second gear assembly is a big gear, the lower end of the second gear assembly is a small gear, and the big gear at the upper end of the second gear assembly 16 is meshed with the small gear at the upper end of the first gear assembly 15.

In a possible embodiment, a third rotating shaft limiting column 23 is arranged on the housing 1, a third rotating shaft 12 is arranged on the third rotating shaft limiting column 23, a third gear assembly 17 is sleeved on the third rotating shaft 12, the third gear assembly 17 is divided into an upper gear and a lower gear, and the upper gear of the third gear assembly 17 is meshed with the lower gear of the second gear assembly 16.

The third rotating shaft limiting column 23 arranged on the shell 1 is mainly used for installing a third rotating shaft 12, a third gear assembly 17 is sleeved on the third rotating shaft 12, the third gear assembly 17 is divided into a large gear and a small gear, the large gear and the small gear are coaxially designed, the upper end of the third gear assembly 17 is a large gear, the lower end of the third gear assembly is a small gear, and the large gear at the upper end of the third gear assembly 17 is meshed with the small gear at the lower end of the second gear assembly 16.

In a possible embodiment, a gear fourth rotating shaft limiting column 24 is arranged on the housing 1, a fourth rotating shaft 13 is arranged on the gear fourth rotating shaft limiting column 24, a fourth gear assembly 18 is sleeved on the fourth rotating shaft 13, the fourth gear assembly 18 is divided into an upper gear and a lower gear, and the lower gear of the fourth gear assembly 18 is meshed with the lower gear of the third gear assembly 17.

The main function of the fourth rotating shaft limiting column 24 arranged on the shell 1 is to install the fourth rotating shaft 13, the fourth rotating shaft 13 is sleeved with a fourth gear assembly 18, the fourth gear assembly 18 is divided into a large gear and a small gear, the large gear and the small gear are coaxially designed, the upper end of the fourth gear assembly 18 is the small gear, the lower end of the fourth gear assembly is a large gear, and the large gear at the lower end of the fourth gear assembly 18 is meshed with the small gear at the lower end of the third gear assembly 17.

In a possible embodiment, the spline mounting groove 25 is provided with a spline 19, and the spline 19 is engaged with the upper gear of the fourth gear assembly 18.

The shell 1 is provided with a flower tooth mounting groove 25, the flower tooth mounting groove 25 mainly serves to mount the flower teeth 19, and the flower teeth 19 are meshed with the upper end pinion of the fourth gear assembly 18.

In a possible embodiment, the surface of the spline 19 is provided with splines 20, and the housing cover 3 is provided with a through hole through which the spline 19 passes, and the through hole is provided with the annular fixing block 4.

The surface of flower tooth 19 sets up spline 20, and spline 20 is inside sunken screens groove, on casing closing cap 3, is provided with a circular through-hole of taking the screens, and flower tooth 19 can just see through the circular through-hole on the casing closing cap 3, fixes it with annular fixed block 4 simultaneously, and annular fixed block 4 is the ring form simultaneously, and the centre is the through-hole shape.

In one possible embodiment, as shown in fig. 5, the gear second rotation shaft limiting column 22 is disposed near the edge of the circular groove for mounting the stator assembly 5 and the rotor assembly 6, the gear fourth rotation shaft limiting column 24 is disposed near the edge of the spline mounting groove 25, and the gear third rotation shaft limiting column 23 is disposed between the gear fourth rotation shaft limiting column 24 and the gear second rotation shaft limiting column 22.

In one possible embodiment, the housing 1 is provided with at least one snap for connecting the housing cover 3.

The shell 1 is provided with a plurality of buckles, the shell sealing cover 3 is also provided with a plurality of buckle grooves matched with the buckle grooves, and the shell 1 and the shell sealing cover can be tightly combined through the buckles and the buckle grooves.

The working process is as follows: the speed reduction torque increaser obtains an external power supply through the interface 2, form armature reaction magnetic field after the circular telegram of stator module 5, react with the permanent magnet magnetic field of rotor module 6, it is rotatory to drive rotor module 6, rotor gear 14 of rotor module 6 drives first gear assembly 15 rotatory, first gear assembly 15 drives second gear assembly 16 rotatory, second gear assembly 16 drives third gear assembly 17 rotatory, third gear assembly 17 drives fourth gear assembly 18 rotatory, fourth gear assembly 18 drives the rotation of flower tooth 19, the spline 20 in the 19 hole of flower tooth is as the output, transmit big moment of torsion.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.

In the present application, "first", "second", and the like are used only for distinguishing one from another, and do not indicate the degree of importance, the order, and the like thereof.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The speed-reducing torque-increasing device is characterized by comprising a shell (1) and a shell sealing cover (3), wherein the shell (1) is provided with an interface (2), a metal joint (8) is arranged in the interface (2), the metal joint (8) is connected with a stator assembly (5), one end of the interior of the shell (1), which is close to the interface (2), is provided with a circular groove for installing the stator assembly (5) and a rotor assembly (6), the other end of the interior of the shell is provided with a spline mounting groove (25), the circle center of the circular groove is provided with a rotor rotating shaft (9), the spline mounting groove (25) is provided with a spline (19), the rotor assembly (6) is sleeved on the rotor rotating shaft (9), the stator assembly (5) is sleeved on the rotor assembly (6), the stator assembly (5) and the rotor assembly (6) are installed coaxially, and the stator assembly (5) is in a circular ring, be equipped with two at least stator module locating holes (26) on stator module (5) ring, stator module locating hole (26) are according to centre of a circle symmetric distribution, be provided with the spacing post of the first pivot of gear (21) on casing (1), the spacing post of the first pivot of gear (21) passes stator module locating hole (26), be equipped with first pivot (10) on the spacing post of the first pivot of gear (21), stator module (5) with rotor module (6) upper surface covers there is PCB board (7), PCB board (7) are equipped with supply rotor gear (14) with the through-hole that first pivot (10) passed.

2. The deceleration moment increaser according to claim 1, wherein the circular grooves of the housing (1) for mounting the stator assembly (5) and the rotor assembly (6) are provided with threaded holes matching with the stator assembly positioning holes (26), and the stator assembly (5) is connected with the housing (1) by bolts passing through the stator assembly positioning holes (26).

3. The deceleration moment increaser according to claim 2, wherein a first gear assembly (15) is sleeved on the first rotating shaft (10), the first gear assembly (15) is divided into an upper gear and a lower gear, and the lower gear of the first gear assembly (15) is meshed with the rotor gear (14).

4. The deceleration torque increaser according to claim 3, wherein a gear second rotating shaft limiting column (22) is arranged on the housing (1), a second rotating shaft (11) is arranged on the gear second rotating shaft limiting column (22), a second gear assembly (16) is sleeved on the second rotating shaft (11), the second gear assembly (16) is divided into an upper gear and a lower gear, and the upper gear of the second gear assembly (16) is meshed with the upper gear of the first gear assembly (15).

5. The deceleration torque increaser according to claim 4, wherein a third rotation shaft limiting column (23) is arranged on the housing (1), a third rotation shaft (12) is arranged on the third rotation shaft limiting column (23), a third gear assembly (17) is sleeved on the third rotation shaft (12), the third gear assembly (17) is divided into an upper gear and a lower gear, and the upper gear of the third gear assembly (17) is meshed with the lower gear of the second gear assembly (16).

6. The deceleration moment increaser according to claim 5, wherein a gear fourth rotating shaft limiting column (24) is arranged on the housing (1), a fourth rotating shaft (13) is arranged on the gear fourth rotating shaft limiting column (24), a fourth gear assembly (18) is sleeved on the fourth rotating shaft (13), the fourth gear assembly (18) is divided into an upper gear and a lower gear, and the lower gear of the fourth gear assembly (18) is meshed with the lower gear of the third gear assembly (17).

7. The deceleration moment increaser according to claim 6, characterized in that said spline mounting groove (25) is provided with a spline (19), said spline (19) being engaged with an upper gear of a fourth gear assembly (18).

8. Deceleration moment increaser according to claim 7, characterized in that the surface of the spline (19) is provided with splines (20) and the housing cover (3) is provided with through holes through which the spline (19) passes, said through holes being provided with annular fixing blocks (4).

9. The deceleration torque increaser according to claim 8, wherein the gear second rotation shaft limiting column (22) is provided near the edge of the circular groove for mounting the stator assembly (5) and the rotor assembly (6), the gear fourth rotation shaft limiting column (24) is provided near the edge of the spline mounting groove (25), and the gear third rotation shaft limiting column (23) is provided between the gear fourth rotation shaft limiting column (24) and the gear second rotation shaft limiting column (22).

10. Deceleration moment increaser according to claim 9, characterized in that the housing (1) is provided with at least one snap for connection of a housing cover (3).