CN201840353U - Motor Reduction Drives for Household Stand Mixers - Google Patents

Abstract

A motor reduction drive device for a household vertical mixer includes a drive motor and a reducer. In particular, the reducer includes a gear box, a gear box cover, a turntable, a central coaxial gear set arranged in the center of the gear box and in a vertical axis, an offset coaxial turbine gear set, a planetary gear, and a main output shaft. Along the radial direction of the central coaxial gear set, the drive output shaft of the drive motor extends from the cylindrical housing of the gear box into the gear box. The axis of the output shaft of the drive motor is colinear with the center line of the reducer, which provides convenience for the structural design of the mixer; the reducer realizes three-stage reduction and ensures a sufficiently stable output torque at low speed by means of planetary gears; the secondary output shaft of the reducer can clutch the output torque, so that the output torque will not be wasted, and the noise caused by the idling of the secondary output shaft is suppressed.

Description

Motor Reduction Drives for Household Stand Mixers

technical field

The utility model relates to a motor deceleration device, in particular to a motor deceleration device used for a household vertical mixer to output torque with a suitable rotational speed.

Background technique

In the prior art, the speed reduction device of the household vertical mixer is used to reduce the rotation speed of the driving motor to a rotation speed suitable for stirring, and output torque stably to drive the mixer to complete the mixing. The components driven by the reduction gear include a rotating bowl and a stirring head. Stirring devices in the prior art mostly use a central worm gear first-stage deceleration and deceleration structure, which requires a biased drive motor arrangement, that is, the axial direction of the drive motor deviates from the centerline of the deceleration device, which makes the structural layout design of the mixer casing bring inconvenience. In addition, the reduction gear in the prior art is usually equipped with two output shafts to output torque at the same time. However, when the mixer only uses one output shaft, the other output shaft will also rotate, which increases the power consumption and the work of the mixer. noise. Furthermore, the speed reduction device in the prior art uses a large number of ball bearings, resulting in high manufacturing cost of the speed reduction device.

Utility model content

The technical problem to be solved by the utility model is to avoid the deficiencies of the prior art and propose a motor deceleration drive device for a household vertical mixer, so that the axis of the drive motor is collinear with the center line of the reducer, and the output shaft can be Clutch operation, and the use of sliding bearings instead of rolling bearings saves costs.

The utility model solves the technical problem and can realize by adopting the following technical solutions:

Design and manufacture a motor reduction drive device for a household vertical mixer, including a drive motor and a reducer connected with the drive motor. In particular, the speed reducer comprises a gearbox with a cylindrical housing, a gearbox cover covering the top of the gearbox, a turntable covering the bottom of the gearbox, a vertical shaft arranged in the center of the gearbox A central coaxial gear set, a vertically axially offset coaxial worm gear set arranged on one side of the central coaxial gear set, three vertically axial worm gear sets whose respective shafts are connected to the turntable planetary gears, and the main output shaft that couples the turntable. The cylindrical surface of the lower part of the gearbox is processed into meshing teeth. Along the radial direction of the central coaxial gear set, the drive output shaft of the drive motor extends into the gear box from the cylindrical shell of the gear box. The end of the drive output shaft is connected with a worm. The worm meshes with the worm gear of the upper part of the offset coaxial worm gear set, the gear of the lower part of the offset coaxial worm gear set meshes with the gear of the upper part of the central coaxial gear set, and the planetary gears are respectively connected with the center The gears of the coaxial gear set part mesh with the meshing teeth of the lower part of the gearbox to output torque to the turntable and the main output shaft.

Regarding the axis of the central coaxial gear set, a vertical central axis is provided in the center of the turntable as a vertical positioning axis of the central coaxial gear set. The central shaft is fixedly connected with the turntable and rotates with the turntable.

Regarding the planetary gears, with the vertical direction as the projection direction, on the same horizontal plane, the included angles between the projections of the axis of the planetary gears and the projection line of the axis of the central coaxial gear set are all 120 degrees.

In order to quickly and firmly connect the rotating parts of the mixer, a cylindrical locking sleeve is provided at the end of the main output shaft protruding from the gear box. An active spherical steel ball is detachably coupled to the main output shaft.

Specifically, the main output shaft is connected to any planetary gear through the turntable and rotates with the planetary gear.

The speed reducer also includes a horizontal auxiliary output shaft, one end of the auxiliary output shaft protrudes from the cylindrical housing of the gearbox along the radial direction of the central coaxial gear set, and the other end of the auxiliary output shaft A secondary output shaft bevel gear with meshing teeth arranged on the conical surface is coupled, and the secondary output shaft rotates with the secondary output shaft bevel gear. A vertical central shaft is arranged in the center of the turntable as a vertical positioning shaft of the central coaxial gear set. The central shaft is fixedly connected with the turntable and rotates with the turntable. A central bevel gear with meshing teeth arranged on the conical surface is fixedly connected to the central shaft. The central bevel gear is clutchably meshed with the secondary output shaft bevel gear.

Specifically, the axis of the auxiliary output shaft is in the same direction as the axis of the drive output shaft of the drive motor. The central bevel gear is arranged above the central coaxial gear set.

The end of the auxiliary output shaft protruding from the gearbox is fixedly connected with a coupling, and a spring is sheathed on the auxiliary output shaft. So that, when the coupling is not under pressure, the auxiliary output shaft bevel gear cannot mesh with the central bevel gear by virtue of the restoring force of the cylindrical spring; when the gear box is pressed into the When the coupling is used, the auxiliary output shaft presses the spring together with the coupling, so that the bevel gear of the auxiliary output shaft meshes with the central bevel gear. Thus, the clutchable meshing between the central bevel gear and the auxiliary output shaft bevel gear is realized.

In addition, the turntable and the gearbox are positioned and slidably connected by means of a turntable sliding bearing. The central shaft passes through the central coaxial gear set by means of a central sliding bearing, and is slidably coupled with the central coaxial gear set. The coupling extends into the gear case by means of a coupling sliding bearing, and is slidably coupled with the gear case.

Compared with the prior art, the technical effect of the utility model "motor deceleration drive device for household vertical mixer" lies in:

The axis of the output shaft of the drive motor is collinear with the center line of the reducer, which facilitates the structural design of the mixer; the reducer realizes three-stage reduction, and ensures sufficient stable power at low speeds by means of planetary gears. Output torque; the auxiliary output shaft of the reducer can be clutched to output torque, so that the output torque will not be wasted, and the noise caused by the idling of the auxiliary output shaft is suppressed; the main output shaft is realized with the mixer by means of a locking sleeve Fast and reliable connection of the stirring device; the reducer uses sliding bearings to replace a large number of practical ball bearings in the prior art, which saves the manufacturing cost of the mixer.

Description of drawings

Fig. 1 is a schematic diagram of the axonometric projection of the preferred embodiment of the utility model "motor deceleration drive device for household vertical mixer", wherein the reducer is partially cut away;

Fig. 2 is a schematic diagram of an exploded axonometric projection of the preferred embodiment.

Detailed ways

Further details will be given below in conjunction with the preferred embodiments shown in the accompanying drawings.

The utility model proposes a motor deceleration drive device for a household vertical mixer, as shown in FIG. 1 and FIG. 2 , including a drive motor 200 and a reducer connected with the drive motor 200 . In particular, the speed reducer includes a gear box 111 with a cylindrical shell, a gear box cover 112 covering the top of the gear box, a turntable 113 covering the bottom of the gear box, and a central, The central coaxial gear set 122 in the vertical axis, the offset coaxial worm gear set 121 in the vertical axis arranged on one side of the central coaxial gear set 122, the shaft rods of which are connected with the turntable 113, Three vertical planetary gears 123 , and the main output shaft 131 connected to the turntable 113 . The cylindrical surface of the lower part of the gear box 111 is processed into meshing teeth 114 . Along the radial direction of the central coaxial gear set 122 , the driving output shaft 210 of the driving motor 200 protrudes into the gear box 111 from the cylindrical shell of the gear box 111 . Since the central coaxial gear set 122 is located in the center of the gear box 111, the radial direction of the central coaxial gear set 122 is the centerline direction of the gear box in the horizontal direction, so the axial direction of the output shaft 210 of the drive motor 200 It is in the same direction as the centerline of the gear box 111, which ensures that the axial direction of the output shaft of the drive motor 200 is collinear with the centerline of the reducer, which brings convenience to the design of the device layout of the mixer. An end of the driving output shaft 210 is coupled with a worm 220 . The worm 220 meshes with the worm gear on the upper part of the offset coaxial worm gear set 121 to achieve the first stage of reduction; the lower gear of the offset coaxial worm gear set 121 meshes with the upper gear of the central coaxial gear set 122 , to achieve the second stage of deceleration; the planetary gears 123 respectively mesh with the gears at the bottom of the central coaxial gear set 122 and the meshing teeth 114 at the bottom of the gearbox to realize the third stage of deceleration. After the above three stages of deceleration, the Torque is output to the turntable 113 and the main output shaft 131 . In the third stage of deceleration, since the rotating shafts of the planetary gears 123 are fixedly connected to the turntable 113, the rotation of each planetary gear 123 around the central coaxial gear set 122 is converted into the rotation of the turntable 113. At the same time, each planetary gear 123 and the gear The meshing teeth 114 on the cylindrical housing of the box 111 are meshed to ensure that the turntable 113 has a sufficiently stable output torque at low rotational speeds.

Regarding the axial positioning of the central coaxial gear set 122, in a preferred embodiment of the present invention, as shown in Figure 2, a vertical central shaft 115 is provided in the center of the turntable 113 as the central coaxial gear set 122 vertical positioning axis. The central shaft 115 is fixedly connected with the turntable 113 and rotates with the turntable 113 .

In order to ensure that the planetary gear 123 can make the turntable 113 output torque stably, the preferred embodiment of the present invention, as shown in Figure 2, takes the vertical direction as the projection direction, and on the same horizontal plane, the projection of the axis of the planetary gear 123 The included angles between the projected lines with the axis of the central coaxial gear set 122 are all 120 degrees.

In a preferred embodiment of the present utility model, as shown in Figures 1 and 2, a cylindrical locking sleeve 401 is provided at the end of the main output shaft 131 protruding from the gear box 111, and the locking sleeve 401 is At least one spherical steel ball 502 elastically movable along the radial direction 131 of the main output shaft is detachably coupled with the main output shaft 131 . The locking sleeve 401 is connected to the rotating part of the mixer, for example, the mixing head, so that the stirring head of the mixer can be detachably connected to the main output shaft 131 stably.

In the preferred embodiment of the present invention, as shown in Figure 2, the main output shaft 131 passes through the turntable 113 to connect any planetary gear 123 and rotates with the planetary gear, so that the main output shaft 131 "revolves" with the turntable 113. During the process, the main output shaft 131 is also in the process of "self-rotation", so that the main output shaft 131 is suitable for connecting the stirring head of the mixer.

In the preferred embodiment of the present utility model, as shown in Figures 1 and 2, the reducer also includes a horizontal auxiliary output shaft 132, and one end of the auxiliary output shaft 132 extends radially along the central coaxial gear set 122. Out of the cylindrical housing of the gear box 111, the other end of the secondary output shaft 132 is connected to a secondary output shaft bevel gear 125 with meshing teeth arranged on the tapered surface, and the secondary output shaft 132 is connected with the secondary output shaft Bevel gear 125 rotates. A vertical center shaft 115 is arranged in the center of the turntable 114 as a vertical positioning shaft of the central coaxial gear set 122 . The central shaft 115 is fixedly connected with the turntable 114 and rotates with the turntable 114 . On said central shaft 115, a central bevel gear 124 with meshing teeth arranged on the conical surface is fixedly coupled. The central bevel gear 124 is in disengageable mesh with the secondary output shaft bevel gear 125 . Since the secondary output shaft 132 can be rotated by clutch, the torque will be output only when needed. Noise caused by output shaft 132 idling.

In a preferred embodiment of the present utility model, as shown in Figures 1 and 2, the axis of the auxiliary output shaft 132 is in the same direction as the axis of the drive output shaft 210 of the drive motor 200, thereby making it easier for the motor deceleration drive to operate The layout structure design in the mixer shell.

In a preferred embodiment of the present utility model, as shown in FIG. 1 and FIG. 2 , the central bevel gear 124 is arranged above the central coaxial gear set 122 .

In a preferred embodiment of the present utility model, as shown in Figures 1 and 2, the end of the auxiliary output shaft 132 protruding from the gearbox 111 is fixedly connected with a coupling 402, and the auxiliary output shaft 132 is sleeved with Spring 501. Thus, when the coupling 402 is not under pressure, the secondary output shaft bevel gear 125 cannot mesh with the central bevel gear 124 by virtue of the restoring force of the cylindrical spring 501 . When the coupling 402 is pressed into the gearbox 111, the secondary output shaft 132 presses the spring 501 with the coupling 402, so that the secondary output shaft bevel gear 125 and the Central bevel gear 124 meshes. Thus, the clutchable meshing between the central bevel gear 124 and the secondary output shaft bevel gear 125 is realized.

In the preferred embodiment of the present invention, a large number of ball bearings in the prior art are replaced by sliding bearings. As shown in FIG. 2 , the turntable 113 and the gear box 111 are positioned and slidably connected by sliding bearings 601 . The central shaft 115 passes through the central coaxial gear set 122 via a sliding bearing 602 and is slidably coupled with the central coaxial gear set 122 . The coupling 402 extends into the gear box 111 via a sliding bearing 603 and is slidably coupled with the gear box 111 .

Claims (10)

1. a motor speed reducing driving device that is used for the family expenses vertical mixer comprises drive motors (200) and the decelerator that connects with this drive motors (200); It is characterized in that:

Described decelerator comprises the gear-box (111) with cylindrical shell, the gear box cover (112) at this gear-box top of cover cap, the rotating disk (113) of the described gear-box of cover cap bottom, be arranged on described gear-box central authorities, vertical axes to center in-line gears group (122), be arranged on these center in-line gears group (122) one sides, vertical axes to the coaxial turbo tooth wheels of biasing (121), separately axostylus axostyle and described rotating disk (113) connect, three vertical axes to planetary gear (123), and the main output shaft (131) that connects described rotating disk (113); The cylinder of described gear-box (111) bottom is processed to engaging tooth (114);

Along center in-line gears group (122) radially, the driving output shaft (210) of described drive motors (200) is stretched in this gear-box (111) by the cylindrical shell of described gear-box (111); End connection one worm screw (220) of described driving output shaft (210);

Described worm screw (220) meshes with the turbine on biasing coaxial turbo tooth wheels (121) top, the gear of this coaxial turbo tooth wheels (121) bottom of setovering and the gears engaged on described center in-line gears group (122) top, described planetary gear (123) meshes with the gear of described center in-line gears group (122) bottom and the engaging tooth (114) of lower gearbox portion respectively separately, to export torque to described rotating disk (113) and main output shaft (131).

2. the motor speed reducing driving device that is used for the family expenses vertical mixer according to claim 1 is characterized in that:

Central authorities are provided with vertical central shaft (115) at described rotating disk (113), as the vertical locating shaft of described center in-line gears group (122); Described central shaft (115) and rotating disk (113) fixed connection rotate with rotating disk (113).

3. require the described motor speed reducing driving device that is used for the family expenses vertical mixer according to right 1, it is characterized in that:

With the vertical direction is projecting direction, on same horizontal plane, the projection of described planetary gear (123) axis separately and the angle between the projection join line of described center in-line gears group (122) axis all be 120 the degree.

4. the motor speed reducing driving device that is used for the family expenses vertical mixer according to claim 1 is characterized in that:

The end of stretching out described gear-box (111) at described main output shaft (131) is provided with cylinder locking pipe box (401), and this locking pipe box (401) is by at least one can radially the spherical steel ball (502) and the described main output shaft (131) of (131) knee springing removably connect along main output shaft.

5. the motor speed reducing driving device that is used for the family expenses vertical mixer according to claim 1 is characterized in that:

Described main output shaft (131) passes rotating disk (113) and connects arbitrary planetary gear (123) and rotate with this planetary gear.

6. the motor speed reducing driving device that is used for the family expenses vertical mixer according to claim 1 is characterized in that:

The secondary output shaft (132) that also comprises horizontal axis, these pair output shaft (132) one ends are along the cylindrical shell that extends radially out described gear-box (111) of described center in-line gears group (122), the other end connection one of described secondary output shaft (132) is provided with the secondary output shaft angular wheel (125) of engaging tooth on the conical surface, and described secondary output shaft (132) rotates with secondary output shaft angular wheel (125);

Central authorities are provided with vertical central shaft (115) at described rotating disk (114), as the vertical locating shaft of described center in-line gears group (122); Described central shaft (115) and rotating disk (114) fixed connection rotate with rotating disk (114); Go up fixed connection one is provided with engaging tooth on the conical surface tapered centre gear (124) at described central shaft (115);

Described tapered centre gear (124) and described secondary output shaft angular wheel (125) but clutch must mesh.

7. the motor speed reducing driving device that is used for the family expenses vertical mixer according to claim 6 is characterized in that:

The axis of described secondary output shaft (132) is identical with the axis direction of the driving output shaft (210) of described drive motors (200).

8. the motor speed reducing driving device that is used for the family expenses vertical mixer according to claim 6 is characterized in that:

Described tapered centre gear (124) is arranged on the top of described center in-line gears group (122).

9. the motor speed reducing driving device that is used for the family expenses vertical mixer according to claim 6 is characterized in that:

The end fixed connection that described secondary output shaft (132) stretches out described gear-box (111) has shaft joint (402), is arranged with spring (501) on the described secondary output shaft (132); Make,

When described shaft joint (402) not during pressurized, by the restoring force of cylindrical spring (501), described secondary output shaft angular wheel (125) can not mesh with described tapered centre gear (124); When pressing described shaft joint (402) in described gear-box (111), described secondary output shaft (132) compresses described spring (501) with shaft joint (402), thereby makes described secondary output shaft angular wheel (125) and described tapered centre gear (124) engagement; Thereby realize described tapered centre gear (124) and described secondary output shaft angular wheel (125) but the engagement of clutch.

10. according to claim 1, the 2 or 9 described motor speed reducing driving devices that are used for the family expenses vertical mixer, it is characterized in that:

Also connect slidably by rotating disk sliding bearing (601) location between described rotating disk (113) and the gear-box (111); Described central shaft (115) passes described center in-line gears group (122) by central slide bearing (602), and connects slidably with this center in-line gears group (122); Described shaft joint (402) stretches into described gear-box (111) by shaft joint sliding bearing (603), and connects slidably with this gear-box (111).

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