CN209344942U - A kind of motor deceleration device and lifting column - Google Patents
A kind of motor deceleration device and lifting column Download PDFInfo
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- CN209344942U CN209344942U CN201821732267.XU CN201821732267U CN209344942U CN 209344942 U CN209344942 U CN 209344942U CN 201821732267 U CN201821732267 U CN 201821732267U CN 209344942 U CN209344942 U CN 209344942U
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- deceleration device
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Abstract
The utility model provides a kind of motor deceleration device and lifting column, including motor, deceleration box and transmission shaft, the motor shaft of motor is equipped with worm screw, deceleration box is equipped with output shaft, output shaft is equipped with gear wheel, output shaft is arranged in parallel with worm screw, transmission shaft includes the first transmission shaft and second driving shaft, first transmission shaft is equipped with the first worm gear and the first pinion gear of synchronous rotary, second driving shaft is equipped with the second worm gear and the second pinion gear of synchronous rotary, first worm gear and the second worm gear respectively with worm screw engaged transmission, first pinion gear and the second pinion gear respectively with gear wheel engaged transmission, gear wheel is set to drive rotation by two pinion gears, promote the bearing capacity of gear wheel, improve the service life of motor deceleration device, and transmission is more steady, reduce drive noise, and the axis and second driving shaft of the first transmission shaft Axis Cross setting, keep the intracorporal structure of reduction gearbox compact.Lifting column large carrying capacity, overall volume are small, long service life.
Description
Technical field
The utility model relates to electric lifting vertical column technical field more particularly to a kind of motor deceleration device and lifting are vertical
Column.
Background technique
For lifting column because the advantages of height is adjustable, convenient in carrying is widely used in daily life, lifting is vertical
Column drives drive assembly is flexible to drive the flexible to real of the sheath assembly outside drive assembly by motor deceleration device
Existing elevating function.With the extensive use of lifting column, the requirement to motor deceleration device is also higher and higher, does not require nothing more than motor
Deceleration device itself is compact-sized, saves space, it is also necessary to have a biggish bearing capacity, existing motor deceleration device is not
It is able to satisfy such requirement.
Utility model content
The purpose of this utility model is to provide a kind of compact-sized, large carrying capacity motor deceleration device and lifting are vertical
Column.
In order to achieve the above object, the utility model adopts the following technical solution: a kind of motor deceleration device, including electricity
Machine, deceleration box and it is set to the intracorporal transmission shaft of reduction gearbox, the motor shaft of motor is equipped with worm screw, and deceleration box is equipped with output
Axis, output shaft are equipped with gear wheel, and output shaft is arranged in parallel with worm screw, and transmission shaft includes the first transmission shaft and second driving shaft,
The axis of first transmission shaft and the Axis Cross of second driving shaft are arranged, and the first transmission shaft is equipped with the first worm gear of synchronous rotary
With the first pinion gear, second driving shaft is equipped with the second worm gear and the second pinion gear of synchronous rotary, the first worm gear and the second snail
Wheel respectively with worm screw engaged transmission, the first pinion gear and the second pinion gear respectively with gear wheel engaged transmission.
Further, the axis of first transmission shaft and the axis of second driving shaft are in the same plane, described
In plane the rotary centerline of the rotary centerline of connecting worm and gear wheel be center connecting line, the axis of the first transmission shaft with
The axis of second driving shaft is symmetrical arranged along central junction line.
Further, the inner wall of the central junction line and deceleration box is arranged in parallel.
Further, the angle between the axis and central junction line of first transmission shaft is a, 18 °≤a≤60 °.
Further, the intersection point of the axis of the axis and second driving shaft of first transmission shaft is the first intersection point, canine tooth
The intersection point of the rotary centerline of wheel and the rotary centerline of the first pinion gear is the second intersection point, the rotary centerline of gear wheel and the
The intersection point of the rotary centerline of two pinion is third intersection point, and the first intersection point, the second intersection point and third intersection point are overlapped setting.
Further, first pinion gear is sheathed on the first transmission shaft by the first expansion sleeve, and/or, second is small
Gear is sheathed on second driving shaft by the second expansion sleeve.
Further, the worm screw and output shaft are respectively positioned on the upside of deceleration box；Alternatively, the worm screw and output shaft are equal
Positioned at the downside of deceleration box.
Further, the gear wheel, the first pinion gear and the second pinion gear are spiral bevel gear；Alternatively, described big
Gear, the first pinion gear and the second pinion gear are ring gear.
Further, first worm gear and the second worm gear are helical gear.
Further, the invention also discloses a kind of lifting columns, including motor deceleration device and decelerating through motor to fill
Set the drive assembly of transmission connection and the casing outside drive assembly, wherein motor deceleration device is any above-mentioned technology
Motor deceleration device in scheme.
After adopting the above technical scheme, the utility model has the advantages that
1, it is protruded into deceleration box by the worm screw on setting motor shaft and is cooperated with the first worm gear, the second worm-drive, electricity
When machine rotates, the worm screw on motor shaft drives the first transmission shaft and second driving shaft rotation, and drives the first pinion gear and second
Pinion rotation is to make bull gear drive.So that gear wheel drives rotation by two pinion gears, the carrying of gear wheel is improved
Ability, and then the bearing capacity of output shaft is improved, be conducive to the service life for promoting motor deceleration device, and transmission is more steady,
Reduce drive noise.Meanwhile output shaft is arranged in parallel with worm screw, so that motor deceleration device, which is concentrated, occupies longitudinal space, it is whole
Make the structure of motor deceleration device more compact on body, and the Axis Cross of the axis of the first transmission shaft and second driving shaft
Setting, under the premise of promoting bearing capacity, the intracorporal structure of reduction gearbox is compact, reduces the volume of motor deceleration device.
2, it is symmetrical arranged, is made along central junction line by the axis of axis and second driving shaft that the first transmission shaft is arranged
It is symmetrical compared with the power that the second worm gear acts on worm screw to obtain the first worm gear, so that the transmission of the first transmission shaft and second driving shaft
Compare steadily, meanwhile, it is compact in structure, save space.
3, parallel with the inner wall of deceleration box by setting central junction line, so that the axis of worm screw is to deceleration box inner wall
Distance and axis being equidistant to deceleration box inner wall of output shaft subtract so that the intracorporal structure of reduction gearbox is more compact
The volume of small deceleration box.
4, through the angle between the axis and central junction line of the first transmission shaft of setting between 18 ° to 60 °, so that the
The first worm gear and the first pinion gear on one transmission shaft can normal rotation, interference will not be generated between other component.Work as a
At 18 ° of <, interference is easy to happen between the first transmission shaft and the second pinion gear；When 60 ° of a >, the first pinion gear and second small
Interference is easy to happen between gear.
5, it is overlapped by the first intersection point of setting, the second intersection point and third intersection point, makes the first transmission shaft, second driving shaft the
When one worm gear, the second worm gear drive lower rotation, the engaged transmission between the first pinion gear, the second pinion gear and gear wheel is steady,
So that the transmission of motor deceleration device is more stable so that motor deceleration device using relatively reliable.
6, the first pinion gear and the second pinion gear pass through the first expansion sleeve respectively and the second expansion sleeve is fixed on the first transmission
On axis and second driving shaft, so that the assembly of the first pinion gear and the second pinion gear is fairly simple, while the first small tooth ensure that
Sideshake between wheel, the second pinion gear and gear wheel is consistent, and improves the first pinion gear, the second pinion gear and gear wheel
Contact strength, to promote service life.
7, by the way that worm screw and output shaft to be all set in the upside or downside of deceleration box, so that motor deceleration device is vertical
Upward structure is more compact, reduces the volume of motor deceleration device.
8, the invention also discloses a kind of lifting column, lifting column includes motor deceleration device and decelerating through motor
The drive assembly and the casing outside drive assembly of device transmission connection, motor deceleration device use any above-mentioned technical side
Motor deceleration device in case, because of the large carrying capacity of motor deceleration device, compact-sized, so that lifting column bearing capacity
Greatly, overall volume is smaller, long service life.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is that motor deceleration device described in the utility model takes down the structural schematic diagram after upper box lid.
Fig. 2 is that motor deceleration device described in the utility model takes down the top view after upper box lid.
Fig. 3 is the explosive view of motor deceleration device described in the utility model.
Marked the names of the parts are as follows in figure:
1, motor；11, worm screw；2, deceleration box；21, lower box；22, upper box lid；3, the first transmission shaft；31, the first snail
Wheel；32, the first pinion gear；33, the first expansion sleeve；34, first bearing；35, second bearing；4, second driving shaft；41, the second snail
Wheel；42, the second pinion gear；43, the second expansion sleeve；44,3rd bearing；45, fourth bearing；5, output shaft；51, gear wheel；52,
5th bearing；6, central junction line；7, the first intersection point；8, mounting plate.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.It is to be appreciated that following
The indicating positions such as "upper", "lower", "left", "right", " longitudinal direction ", " transverse direction ", "inner", "outside", "vertical", "horizontal", "top", "bottom"
Or the word of positional relationship is based only upon orientation or positional relationship shown in the drawings, only for the purposes of describing the utility model and simplification
Description, rather than device/element of indication or suggestion meaning must have a particular orientation or be constructed and be grasped with specific orientation
Make, therefore should not be understood as limiting the present invention.
As shown in Figure 1 to Figure 3, the utility model provides a kind of motor deceleration device, including motor 1, deceleration box 2 and sets
Transmission shaft in deceleration box 2, deceleration box 2 include lower box 21 and upper box lid 22, and motor 1 is fixed on the bottom of lower box 21
Portion, the motor shaft of motor 1 are equipped with worm screw 11, and deceleration box 2 is equipped with output shaft 5, and output shaft 5 is equipped with gear wheel 51, defeated
Shaft 5 is arranged in parallel with worm screw 11, transmission shaft include the first transmission shaft 3 and second driving shaft 4, the axis of the first transmission shaft 3 with
The Axis Cross of second driving shaft 4 is arranged, and the first transmission shaft 3 is equipped with the first worm gear 31 and the first pinion gear of synchronous rotary
32, second driving shaft 4 is equipped with the second worm gear 41 and the second pinion gear 42 of synchronous rotary, the first worm gear 31 and the second worm gear 41
Respectively with the engaged transmission of worm screw 11, the first pinion gear 32 and the second pinion gear 42 respectively with 51 engaged transmission of gear wheel.Motor shaft
On worm screw 11 protrude into deceleration box 2 and cooperate with the first worm gear 31, the transmission of the second worm gear 41, when motor 1 rotates, on motor shaft
Worm screw 11 drive the first transmission shaft 3 and second driving shaft 4 to rotate, and drive the first pinion gear 32 and the rotation of the second pinion gear 42
To make gear wheel 51 rotate.So that gear wheel 51 drives rotation by two pinion gears, the bearing capacity of gear wheel 51 is improved,
And then the bearing capacity of output shaft 5 is improved, be conducive to the service life for promoting motor deceleration device, and be driven more steady, reduction
Drive noise.Meanwhile output shaft 5 is arranged in parallel with worm screw 11, so that motor deceleration device concentrates the sky for occupying vertical direction
Between, make the structure of motor deceleration device more compact on the whole, and the axis of the first transmission shaft 3 and second driving shaft 4
Axis Cross setting, under the premise of promoting bearing capacity, the structure in deceleration box 2 is compact, reduces decelerating through motor dress
The volume set.
In the present embodiment, the axis of the first transmission shaft 3 and the axis of second driving shaft 4 are in the same plane, so that electric
Structure is more compact in the longitudinal direction for machine deceleration device, on this plane turn of the rotary centerline of connecting worm 11 and gear wheel 51
Dynamic center line is center connecting line 6, and the axis of the first transmission shaft 3 and the axis of second driving shaft 4 are symmetrical along central junction line 6
Setting, so that the first worm gear 31 is symmetrical compared with the power that the second worm gear 41 acts on worm screw 11, so that the first transmission shaft 3 and the
The transmission of two transmission shafts 4 is more steady, meanwhile, it is compact in structure, save space.
Specifically, central junction line 6 and the inner wall of deceleration box 2 are arranged in parallel, so that the axis of worm screw 11 is to reduction gearbox
Axis being equidistant to 2 inner wall of deceleration box of the distance of 2 inner wall of body and output shaft 5, so that the structure in deceleration box 2 is more
Step up to gather, reduces the volume of deceleration box 2.
Angle between the axis and central junction line 6 of first transmission shaft 3 is a, 18 °≤a≤60 °, so that the first transmission
The first worm gear 31 and the first pinion gear 32 on axis 3 can normal rotation, interference will not be generated between other component.This reality
It applies in example, a takes 20 °, so that will not interfere between the first transmission shaft and the second pinion gear, the first pinion gear and the second small tooth
It will not be interfered between wheel, and structure is compact.
The intersection point of the axis of the axis and second driving shaft 4 of first transmission shaft 3 is the first intersection point 7, the rotation of gear wheel 51
The intersection point of center line and the rotary centerline of the first pinion gear 32 is the second intersection point, the rotary centerline of gear wheel 51 and second small
The intersection point of the rotary centerline of gear 42 is third intersection point, and the first intersection point 7, the second intersection point and third intersection point are overlapped setting, so that
First transmission shaft 3, second driving shaft 4 under the first worm gear 31, the second worm gear 41 drive when rotating, the first pinion gear 32, second
Engaged transmission between pinion gear 42 and gear wheel 51 is steady, so that the transmission of motor deceleration device is more stable, so that
Motor deceleration device using relatively reliable.
First pinion gear 32 is sheathed on the first transmission shaft 3 by the first expansion sleeve 33, and the second pinion gear 42 passes through second
Expansion sleeve 43 is sheathed on second driving shaft 4, so that the assembly of the first pinion gear 32 and the second pinion gear 42 is fairly simple, simultaneously
It ensure that the sideshake between the first pinion gear 32, the second pinion gear 42 and gear wheel 51 is consistent, improve the first pinion gear
32, the contact strength of the second pinion gear 42 and gear wheel 51, to promote service life.
Worm screw 11 and output shaft 5 are respectively positioned on the downside of deceleration box 2, so that structure is more in the longitudinal direction for motor deceleration device
It is compact, reduce the volume of motor deceleration device.
First worm gear 31 and the second worm gear 41 are helical gear, and the crossed axis angle of the first worm gear 31 and worm screw 11 is 90 °, second
Worm gear 41 and the crossed axis angle of worm screw 11 are 90 °, so that the power of script vertical direction is converted into horizontal direction, the first worm gear 31
Helical gear is used with the second worm gear 41, so that there is certain self-lock ability, while the first worm gear 31, the second worm gear 41 and worm screw
Biggish transmission ratio is able to achieve between 11, and noise is smaller when Helical gear Transmission.
Gear wheel 51, the first pinion gear 32 and the second pinion gear 42 are spiral bevel gear, the first pinion gear 32 and canine tooth
The crossed axis angle of wheel 51 is 90 °, the crossed axis angle of the second pinion gear 42 and gear wheel 51 is 90 °, so that the power of script horizontal direction
Again it is converted into vertical direction, so that the axial direction of output shaft 5 is parallel with the axial direction of screw rod, while spiral bevel gear
Stable drive, drive noise are low, transmission efficiency is very high.
In order to increase the stationarity of the first worm gear 31 and the transmission of the first pinion gear 32, the first transmission shaft 3 is equipped with first axle
34 and second bearing 35 are held, the first worm gear 31 is set on the bottom wall of lower box 21 between first bearing 34 and second bearing 35
There are the first half slots and the second half slots, the roof of upper box lid 22 is equipped with half slot of third and the 4th half slot, and first bearing 34 is positioned
It is mounted on the first half slots and half slot of third is formed by installation space, second bearing 35 is by location and installation in the second half slots and
4 half slots are formed by installation space, in the way of two bearings of installation, can effectively reduce the first transmission shaft 3, first
The beating degree of worm gear 31, while also can be reduced the axial displacement of worm gear, so that the first worm gear 31 and worm screw 11 engage tightness
More preferably.
Similarly, in order to increase the stationarity of the second worm gear 41 and the transmission of the second pinion gear 42, second driving shaft 4 is equipped with the
Three bearings 44 and fourth bearing 45, the second worm gear 41 is between 3rd bearing 44 and fourth bearing 45, on the bottom wall of lower case lid
Equipped with the 5th half slot and the 6th half slot, the roof of upper box lid 22 is equipped with the 7th half slot and the 8th half slot, and 3rd bearing 44 is determined
Position is mounted on the 5th half slot and the 7th half slot is formed by installation space, fourth bearing 45 by location and installation in the 6th half slot and
8th half slot is formed by installation space, in the way of two bearings of installation, can effectively reduce second driving shaft 4, the
The beating degree of two worm gears 41, while also can be reduced the axial displacement of worm gear, so that the second worm gear 41 and engaging for worm screw 11 are close
Degree is more preferable.
Output shaft 5 limits the position on vertical direction by mounting plate 8, is arranged with 5th bearing 52 on output shaft 5, so that
The rotation of output shaft 5 is more steady.
The invention also discloses a kind of lifting columns, including motor deceleration device and motor deceleration device transmission to connect
The drive assembly connect and the casing outside drive assembly, motor deceleration device are that the motor in any above-mentioned technical proposal subtracts
Speed variator, because of the large carrying capacity of motor deceleration device, compact-sized so that lifting column large carrying capacity, overall volume compared with
It is small, long service life.
It should be understood that a can also take 18 °, and 19 °, 21 °, 22 °, 23 °, 24 °, 25 °, 30 °, 35 °, 40 °, 45 °, 50 °,
55 °, 60 ° etc..
It is sheathed on the first transmission shaft it should be understood that being also possible to the first pinion gear by the first expansion sleeve, second is small
Gear is sheathed on second driving shaft by key.
It is sheathed on the first transmission shaft it should be understood that being also possible to the first pinion gear by key, the second pinion gear passes through
Second expansion sleeve is sheathed on second driving shaft.
It should be understood that worm gear and output shaft can also be respectively positioned on the upside of deceleration box.
It should be understood that being also possible to the upside that worm screw is located at deceleration box, output shaft is located at the downside of deceleration box；Or
Person, worm screw are located at the downside of deceleration box, and output shaft is located at the upside of deceleration box.
It should be understood that gear wheel, the first pinion gear and the second pinion gear can also use ring gear.
In addition to above preferred embodiment, for the utility model there are also other embodiments, those skilled in the art can root
It is made various changes and modifications according to the utility model, without departing from the spirit of the utility model, should belong to the utility model
Range defined in appended claims.
Claims (10)
1. a kind of motor deceleration device, including motor, deceleration box and it is set to the intracorporal transmission shaft of reduction gearbox, the motor shaft of motor
It is equipped with worm screw, deceleration box is equipped with output shaft, and output shaft is equipped with gear wheel, which is characterized in that the output shaft and snail
Bar is arranged in parallel, and transmission shaft includes the first transmission shaft and second driving shaft, the axis of the first transmission shaft and the axis of second driving shaft
Line is arranged in a crossed manner, and the first transmission shaft is equipped with the first worm gear and the first pinion gear of synchronous rotary, and second driving shaft is equipped with same
Walk the second worm gear and the second pinion gear of rotation, the first worm gear and the second worm gear respectively with worm screw engaged transmission, the first pinion gear
With the second pinion gear respectively with gear wheel engaged transmission.
2. motor deceleration device according to claim 1, which is characterized in that the axis of first transmission shaft and second passes
The axis of moving axis is in the same plane, on the plane the rotary centerline of the rotary centerline of connecting worm and gear wheel
For center connecting line, the axis of the first transmission shaft and the axis of second driving shaft are symmetrical arranged along central junction line.
3. motor deceleration device according to claim 2, which is characterized in that the central junction line and deceleration box it is interior
Wall is arranged in parallel.
4. motor deceleration device according to claim 2, which is characterized in that the axis of first transmission shaft and center connect
Angle between wiring is a, 18 °≤a≤60 °.
5. motor deceleration device according to claim 1, which is characterized in that the axis of first transmission shaft and second passes
The intersection point of the axis of moving axis is the first intersection point, and the rotary centerline of gear wheel and the intersection point of the rotary centerline of the first pinion gear are
The intersection point of the rotary centerline of second intersection point, the rotary centerline of gear wheel and the second pinion gear be third intersection point, the first intersection point,
Second intersection point and third intersection point are overlapped setting.
6. motor deceleration device according to claim 1, which is characterized in that first pinion gear passes through the first expansion sleeve
It is sheathed on the first transmission shaft, and/or, the second pinion gear is sheathed on second driving shaft by the second expansion sleeve.
7. motor deceleration device according to claim 1, which is characterized in that the worm screw and output shaft are respectively positioned on reduction gearbox
The upside of body；Alternatively, the worm screw and output shaft are respectively positioned on the downside of deceleration box.
8. according to claim 1 to motor deceleration device described in 7 any one, which is characterized in that the gear wheel, first small
Gear and the second pinion gear are spiral bevel gear；Alternatively, the gear wheel, the first pinion gear and the second pinion gear are crown gear
Wheel.
9. according to claim 1 to motor deceleration device described in 7 any one, which is characterized in that first worm gear and
Two worm gears are helical gear.
10. a kind of lifting column, including motor deceleration device, with the drive assembly of motor deceleration device transmission connection and set on biography
Casing outside dynamic assembly, which is characterized in that the motor deceleration device is that motor described in any one of claim 1-9 subtracts
Speed variator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821732267.XU CN209344942U (en) | 2018-10-25 | 2018-10-25 | A kind of motor deceleration device and lifting column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821732267.XU CN209344942U (en) | 2018-10-25 | 2018-10-25 | A kind of motor deceleration device and lifting column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209344942U true CN209344942U (en) | 2019-09-03 |
Family
ID=67745709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821732267.XU Active CN209344942U (en) | 2018-10-25 | 2018-10-25 | A kind of motor deceleration device and lifting column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209344942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412332A (en) * | 2018-10-25 | 2019-03-01 | 宁波海仕凯驱动科技有限公司 | A kind of motor deceleration device and lifting column |
-
2018
- 2018-10-25 CN CN201821732267.XU patent/CN209344942U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412332A (en) * | 2018-10-25 | 2019-03-01 | 宁波海仕凯驱动科技有限公司 | A kind of motor deceleration device and lifting column |
| CN109412332B (en) * | 2018-10-25 | 2024-06-04 | 宁波海仕凯驱动科技有限公司 | Motor speed reducer and lifting upright post |
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