CN206336977U - A kind of second-stage electric elevating mechanism for the small space of heavy load - Google Patents
A kind of second-stage electric elevating mechanism for the small space of heavy load Download PDFInfo
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- CN206336977U CN206336977U CN201621276165.2U CN201621276165U CN206336977U CN 206336977 U CN206336977 U CN 206336977U CN 201621276165 U CN201621276165 U CN 201621276165U CN 206336977 U CN206336977 U CN 206336977U
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Abstract
The utility model discloses a kind of second-stage electric elevating mechanism for the small space of heavy load, by motor, travelling gear to, vertical shaft, interior leading screw screw rod, interior feed screw nut, outer leading screw screw rod, outer feed screw nut, inner sleeve, middle sleeve, outer sleeve, one-level guide rail, one-level sliding block, two grades of guide rails, two grades of sliding blocks constitute.The mechanism driving principle be motor belt motor nutating gear to rotating, travelling gear to driving vertical shaft rotating, interior leading screw screw rod and interior feed screw nut produce it is relative slide, interior leading screw screw rod is increased.When interior leading screw screw rod rises to top, the block on outer sleeve is in contact with the block that middle sleeve is protruded above, and outer leading screw screw rod drives interior leading screw screw rod, interior feed screw nut, middle sleeve and outer sleeve to rise simultaneously.When outer sleeve declines, interior screw mandrel screw rod is fallen before, and outer leading screw screw rod declines again.The utility model compared with prior art, is driven using motor, and space-consuming small volume, generation thrust are big.
Description
Technical field
The utility model is related to mechanical structure field, more particularly to a kind of second-stage electric for the small space of heavy load is lifted
Mechanism.
Background technology
At present, some main elevating mechanisms include guideway up-and-down mechanism, folding-jib elevating mechanism, fork type elevator
Structure, spiral lift mechanism and Mechanical multi-stage elevation mechanism etc..Guideway up-and-down mechanism, folding-jib elevating mechanism bearing capacity compared with
Small, required space is larger.Scissor-type lifting mechanism lateral dimension it is larger, it is necessary to horizontal space it is larger, and screw elevator
Structure is larger in short transverse size.Traditional Mechanical multi-stage elevation mechanism typically uses three-upright-post or four high column structures,
Pass through the linkage of power transmission shaft, steering box, it is ensured that all columns are lifted simultaneously, and this brings higher to machining accuracy and installation accuracy
Requirement, while three columns or space shared by four column up-down mechanisms are larger.
Driven by Hydraulic Cylinder being used existing heavy load elevating mechanism, power is abundant, flexible movements, but the sealing of hydraulic cylinder more
Part is plastic cement products, and easy aging easily causes the danger of oil leak decompression.Also some is driven using air-leg, cost
Low, flexible movements, suitable for assembling, but fault rate is higher, and the sealing system to cylinder body requires very high, slightly quality flaw, i.e.,
There is gases at high pressure leak case.Therefore the major defect that prior art is present is that space needed for heavy load lifting structure is big；Adopt
With drive devices such as hydraulic pressure and air pressure, fault rate is higher, oil leak decompression easily occurs and the problems such as gases at high pressure are revealed.Therefore need one
The scheme of kind solves drawbacks described above.
The content of the invention
Technical problem：Need space big to solve heavy load lifting structure, oil leak decompression and height easily occurs in drive device
The problem of pressing gas leakage, the utility model proposes a kind of second-stage electric elevating mechanism for the small space of heavy load.
Technical scheme：A kind of second-stage electric elevating mechanism for the small space of heavy load of the present utility model, the mechanism bag
Include motor, travelling gear to, vertical shaft, interior leading screw screw rod, interior feed screw nut, outer leading screw screw rod, outer feed screw nut, inner sleeve, in
Sleeve, outer sleeve, one-level guide rail, one-level sliding block, two grades of guide rails, two grades of sliding block compositions；
Inner sleeve, middle sleeve, outer sleeve are respectively hollow structure, and middle sleeve is sheathed on inner sleeve outer surface and its activity connects
Connect, outer sleeve is sheathed on middle sleeve outer surface and it is flexibly connected；Motor, travelling gear to, vertical shaft, interior leading screw screw rod, internal thread
Thick stick nut, outer leading screw screw rod, outer feed screw nut are arranged on inside inner sleeve；
Motor is with travelling gear to being flexibly connected, and the gear wheel of travelling gear centering is fixed on vertical shaft；Travelling gear pair
Rotate, drive vertical shaft rotating；
Interior leading screw screw rod and outer leading screw screw rod are respectively arranged on vertical shaft, and outer leading screw screw sleeve is outside interior leading screw screw rod
Surface；Outer feed screw nut is fixed on vertical shaft top, and interior feed screw nut fixation is on outer leading screw screw rod top；Outer leading screw screw rod and outer silk
Thread friction torque between thick stick nut is more than the moment of friction between interior leading screw screw rod and interior feed screw nut, interior leading screw screw rod with
The first relative motion of interior feed screw nut, then produces relative motion again between outer leading screw screw rod and outer feed screw nut；
The top of interior leading screw screw rod is contacted with the lower surface on outer sleeve top, when motor is rotated forward, and motor is changed by slowing down
Vertical shaft rotating is driven to gear mesh, interior leading screw screw rod is rotated, interior leading screw screw top outer sleeve rising；Interior leading screw screw flight
Length is identical with the range of outer sleeve, inwardly projecting block and the outwardly gear in middle sleeve top in the middle part of outer sleeve
When block is contacted, interior leading screw screw rod is risen at thread termination, and interior leading screw screw rod stops operating, because outer feed screw nut is fixed, outside
Leading screw screw rod is begun to ramp up；Interior feed screw nut fixation is on outer leading screw screw rod, hereafter between interior leading screw screw rod and outer leading screw screw rod
There is no relative motion, outer leading screw screw rod drives interior feed screw nut, interior leading screw screw rod, outer sleeve and middle sleeve to rise simultaneously, finally
The workbench being fixed on outer sleeve is driven to realize ascending motion；
When motor reversal, motor, to driving vertical shaft rotating, declines interior leading screw screw rod by deceleration tumbler gear；Overcoat
Cylinder due to Action of Gravity Field as interior leading screw screw rod declines together, when interior leading screw screw rod is dropped at thread termination, on outer sleeve
End face is pressed on the outwardly block in middle sleeve top；Hereafter outer leading screw spiral shell starts to rotate and moved downward, while in driving
Feed screw nut, interior leading screw screw rod decline together, and outer sleeve and middle sleeve under gravity also with declining together；
One-level guide rail is fixed on the outside of middle sleeve, and one-level sliding block is fixed on the inner side of outer sleeve；Two grades of guide rails are fixed on
The outside of inner sleeve 7, two grades of sliding blocks are fixed on the inner side of middle sleeve；One-level guide rail and one-level sliding block are symmetrically distributed in middle sleeve cylinder
The both sides of wall, two grades of guide rails and two grades of sliding blocks are symmetrically distributed in the both sides of the barrel of inner sleeve 7.
It is preferred that, outer sleeve upper end closed or semi-closed structure, in process of rising or falling, the upper end inner surface of outer sleeve
Keep contacting with interior leading screw screw rod upper surface；Inner sleeve bottom is hollow structure, and top hollows out for part, vertical shaft, interior leading screw
Screw rod, interior feed screw nut, outer leading screw screw rod and outer feed screw nut hollow out place through inner sleeve.
It is preferred that, middle sleeve top it is outwardly convex go out block, have inwardly projecting block in the middle part of outer sleeve, work as outer sleeve
On block when being in contact with the block on middle sleeve, produce relative motion between outer leading screw screw rod and outer feed screw nut.
It is preferred that, the first rise/fall of interior leading screw screw rod, out screw rod screw rod rise/fall again.
Beneficial effect：
1. the utility model uses two-stage transmission mechanism, by interior leading screw screw rod, interior feed screw nut, outer leading screw screw rod, outer silk
Thick stick nut is constituted.Outer feed screw nut is fixed in vertical shaft, and interior feed screw nut fixation is in outer leading screw screw rod, according to inside and outside leading screw spiral shell
Female difference with screw rod frictional force, interior leading screw screw rod is first moved, and outer leading screw screw rod is moved again, while lifting height is ensured,
Greatly reduce height space.
2. the utility model is using two grades of guiding mechanisms, one-level guide rail and one-level sliding block be located at outer sleeve and middle sleeve it
Between, the left and right sides of barrel is distributed in, two grades of guide rails and two grades of sliding blocks are located between middle sleeve and inner sleeve, are distributed in barrel
Front and rear both sides, this four plane difference parallel uprights are using 2 guide rails, and every guide rail makes second-stage electric lift with 2 sliding blocks
Structure has higher rigidity, is operated steadily in lifting process.
3. having block with outer sleeve on middle sleeve, in motion process is risen or fallen, when block is contacted, two can be realized
The conversion of level transmission mechanism series.
4. inner sleeve bottom of the present utility model is hollow structure, driving element and control unit etc. can be placed.Top is
Part is hollowed out, and vertical shaft, interior leading screw screw rod, interior feed screw nut, outer leading screw screw rod and outer feed screw nut hollow out place, pole through inner sleeve
The earth saves space.
5. the utility model is driven using motor, hydraulic pressure and actuating device of atmospheric pressure is overcome oil leak decompression and high pressure gas easily occur
The defects such as body leakage.
Brief description of the drawings
Fig. 1 is the A-A sectional views of second-stage electric elevating mechanism.
Fig. 2 is that second-stage electric elevating mechanism middle sleeve block contacts schematic diagram with outer sleeve block.
Fig. 3 is the upward view of second-stage electric elevating mechanism.
Fig. 4 is the tomograph of second-stage electric elevating mechanism.
Fig. 5 is the left view removed after outer sleeve of second-stage electric elevating mechanism.
Embodiment
The utility model is further illustrated with specific implementation example below in conjunction with the accompanying drawings.It should be understood that these embodiments are only used
In explanation the utility model rather than limitation scope of the present utility model, after the utility model has been read, this area skill
Modification of the art personnel to the various equivalent form of values of the present utility model falls within the application appended claims limited range.
Refer to shown in Fig. 1 to Fig. 5, the second-stage electric lift for the small space of heavy load that the utility model is provided
Structure, it is characterised in that：The mechanism includes motor 2, travelling gear to 4, vertical shaft 3, interior leading screw screw rod 1, interior feed screw nut 10, outer silk
Thick stick screw rod 8, outer feed screw nut 9, inner sleeve 7, middle sleeve 6, outer sleeve 5, one-level guide rail 11, one-level sliding block 12, two grades of guide rails 13,
Two grades of sliding block compositions 14；
Inner sleeve 7, middle sleeve 6, outer sleeve 5 be respectively hollow structure, middle sleeve 6 be sheathed on the outer surface of inner sleeve 7 and its
It is flexibly connected, outer sleeve 5 is sheathed on the outer surface of middle sleeve 6 and it is flexibly connected；Motor 2, travelling gear are to 4, vertical shaft 3, internal thread
Thick stick screw rod 1, interior feed screw nut 10, outer leading screw screw rod 8, outer feed screw nut 9 are arranged on inside inner sleeve 7；
Motor 1 is flexibly connected with travelling gear to 4, and travelling gear is fixed on vertical shaft 3 to the gear wheel in 4；Driving cog
Wheel is rotated to 4, drives vertical shaft 3 to rotate；
Interior leading screw screw rod 1 and outer leading screw screw rod 8 are respectively arranged on vertical shaft 3, and outer leading screw screw rod 8 is sheathed on interior leading screw spiral shell
The outer surface of bar 1；Outer feed screw nut 9 is fixed on the top of vertical shaft 3, and interior feed screw nut 10 is fixed on the outer top of leading screw screw rod 8；Outer leading screw
Thread friction torque between screw rod 8 and outer feed screw nut 9 is more than the frictional force between interior leading screw screw rod 1 and interior feed screw nut 10
Square, interior leading screw screw rod 1 and the first relative motion of interior feed screw nut 10, are then produced again between outer leading screw screw rod 8 and outer feed screw nut 9
Relative motion；
The top of interior leading screw screw rod 1 is contacted with the lower surface on the top of outer sleeve 5, and when motor 2 is rotated forward, motor 2 is by subtracting
Quick change drives vertical shaft 3 to rotate to gear mesh 4, rotates interior leading screw screw rod 1, interior leading screw screw rod 1 heads on outer sleeve 5 and risen；Internal thread
Thick stick screw flight length 1 is identical with the range of outer sleeve 5, when on the middle part of outer sleeve 5 inwardly projecting block and middle sleeve 6
When the outwardly block in portion is contacted, interior leading screw screw rod 1 is risen at thread termination, and interior leading screw screw rod 1 stops operating, due to outer
Feed screw nut 9 is fixed, and outer leading screw screw rod 8 is begun to ramp up；Interior feed screw nut 10 is fixed on outer leading screw screw rod 8, hereafter interior leading screw
There is no relative motion between screw rod 1 and outer leading screw screw rod 8, outer leading screw screw rod 8 drives interior feed screw nut 10, interior leading screw screw rod 1, outer
Sleeve 5 and middle sleeve 6 rise simultaneously, finally drive the workbench being fixed on outer sleeve 5 to realize ascending motion；
When motor 2 is inverted, motor 2 is rotated by deceleration tumbler gear to 4 drive vertical shafts 3, is made under interior leading screw screw rod 1
Drop；Outer sleeve 5 due to Action of Gravity Field as interior leading screw screw rod 1 declines together, when interior leading screw screw rod 1 is dropped at thread termination
When, the upper surface of outer sleeve 5 is pressed on the outwardly block in the top of middle sleeve 6；Hereafter outer leading screw screw rod 8 starts to rotate and downward
Motion, while feed screw nut 10, interior leading screw screw rod 1 decline together in driving, outer sleeve 5 and middle sleeve 6 are under gravity
With declining together；
One-level guide rail 11 is fixed on the outside of middle sleeve 6, and one-level sliding block 12 is fixed on the inner side of outer sleeve 5；Two grades of guide rails
13 are fixed on the outside of inner sleeve 7, and two grades of sliding blocks 14 are fixed on the inner side of middle sleeve 6；12 pairs of one-level guide rail 11 and one-level sliding block
Claim the both sides for being distributed in the barrel of middle sleeve 6, two grades of guide rails 13 and two grades of sliding blocks 14 are symmetrically distributed in the both sides of the barrel of inner sleeve 7.
The upper end closed of outer sleeve 5 or semi-closed structure, in motion process, in process of rising or falling, outer sleeve 5 it is upper
End inner surface keeps contacting with the interior upper surface of leading screw screw rod 1；The bottom of inner sleeve 5 is hollow structure, and top hollows out for part, stands
Axle 3, interior leading screw screw rod 1, interior feed screw nut 10, outer leading screw screw rod 8 and outer feed screw nut 9 hollow out place through inner sleeve 7.
The top of middle sleeve 6 it is outwardly convex go out block, there is inwardly projecting block at the middle part of outer sleeve 5, when on outer sleeve 5
When block is in contact with the block on middle sleeve 6, relative motion is produced between outer leading screw screw rod 8 and outer feed screw nut 9.In motion
During, interior leading screw screw rod 1 first rises (decline), and out screw rod screw rod 8 rises (decline) again.
Refering to Fig. 1, the second-stage electric elevating mechanism is driven by motor 1, and motor is placed vertically, and inversion is fixed on
On baffle plate below column, positioned at the left rear side of column.Motor shaft drives the travelling gear being located at below column to 4 by flat key
Rotate, travelling gear is 1 to 4 gearratio：2, travelling gear is fixed on motor shaft to the little gear in 4 by back-up ring and screw
On, travelling gear is fixed on vertical shaft 3 to the gear wheel in 4 by circlip for shaft and round nut.Travelling gear is to 4 turns
It is dynamic, drive vertical shaft 3 to rotate.Outer feed screw nut 9 is fixed by screws in the top of vertical shaft 3, and interior feed screw nut 10 is fixed by screw
On the outer top of leading screw screw rod 8.Because the thread friction torque between outer leading screw screw rod 8 and outer feed screw nut 9 is more than interior leading screw spiral shell
Moment of friction between bar 1 and interior feed screw nut 10, therefore interior leading screw screw rod 1 and the first relative motion of interior feed screw nut 10, then
Relative motion is produced again between outer leading screw screw rod 8 and outer feed screw nut 9.
Refering to Fig. 1 and Fig. 2, when interior 1 spiral of leading screw screw rod, due on the top of interior leading screw screw rod 1 and outer sleeve 5
The lower surface contact in portion, interior leading screw screw rod 1 heads on outer sleeve 5 and risen.Interior leading screw screw flight length and the maximum row of outer sleeve 5
Cheng Xiangtong, when the inwardly projecting block in the middle part of outer sleeve 5 block outwardly with the top of middle sleeve 6 is contacted, interior leading screw spiral shell
Bar 1 is risen at thread termination, and interior leading screw screw rod 1 stops operating, because outer feed screw nut 9 is fixed, on outer leading screw screw rod 8 starts
Rise.Because interior feed screw nut 10 is fixed on outer leading screw screw rod 8, hereafter there is no phase between interior leading screw screw rod 1 and outer leading screw screw rod 8
To motion, outer leading screw screw rod 8 drives interior feed screw nut 10, interior leading screw screw rod 1, outer sleeve 5 and middle sleeve 6 to rise simultaneously, finally
The workbench being fixed on outer sleeve 5 is driven to realize ascending motion.When motor 2 is inverted, motor 2 passes through deceleration tumbler gear
4 drive vertical shafts 3 are rotated, decline interior leading screw screw rod 1.Outer sleeve 5 is due to Action of Gravity Field as interior leading screw screw rod 1 one is removed
Drop, when interior leading screw screw rod 1 is dropped at thread termination, the upper surface of outer sleeve 5 is pressed in the outwardly block in the top of middle sleeve 6
On.Hereafter outer leading screw screw rod 8 starts to rotate and moved downward, while feed screw nut 10, interior leading screw screw rod 1 one are removed in driving
Drop, outer sleeve 5 and middle sleeve 6 under gravity also with declining together.
Refering to Fig. 1, hollow structure, the upper end closed of outer sleeve 5 or semi-closed structure are inside middle sleeve 6 and outer sleeve 5,
But in motion process, the upper end inner surface of outer sleeve 5 keeps contacting with the upper surface of interior leading screw screw rod 1.The bottom of inner sleeve 7 is
Hollow structure, top hollows out for part, vertical shaft 3, interior leading screw screw rod 1, interior feed screw nut 10, outer leading screw screw rod 8 and outer leading screw spiral shell
Mother 9 hollows out place through inner sleeve 7, and the sleeve and whole secondary lifting mechanism are placed vertically.
Refering to Fig. 3 to Fig. 5, one-level guide rail 11 and two grades of guide rails 13 are 4, and one-level sliding block 12 and two grades of sliding blocks 14 are
8, every guide rail uses 2 sliding blocks.One-level guide rail 11 is fixed on the left and right sides of middle sleeve 6, and one-level sliding block 12 is fixed outside
The left and right sides of sleeve 5.Two grades of guide rails 13 are fixed on the front and rear both sides of inner sleeve 7, and two grades of sliding blocks 14 are fixed on before middle sleeve 6
Both sides afterwards.One-level guide rail 11 and one-level sliding block 12 are symmetrically distributed in the both sides of the barrel of middle sleeve 6, two grades of guide rails 13 and two grades of sliding blocks
14 are symmetrically distributed in the both sides of the barrel of inner sleeve 7.One-level guide rail 11, two grades of guide rails 13 are made with one-level sliding block 12, two grades of sliding blocks 14
For guider, moved for limiting middle sleeve 6 and outer sleeve 5 along guide rail direction.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle of the present utility model and objective, replaced
And modification, scope of the present utility model limits by claim and its equivalent.For example, can place vertically can also for motor 1
Horizontal positioned, when 1 horizontal positioned of motor, can be commutated by bevel gear, drive vertical shaft 3 to move；The upper surface of outer sleeve 5 can be
Plane or concaveconvex structure, can according to actual needs add, connect, fixing, installing other annexes and device, realize
Required function.
Claims (4)
1. a kind of second-stage electric elevating mechanism for the small space of heavy load, it is characterised in that：The mechanism includes motor (2), passed
Moving gear to (4), vertical shaft (3), interior leading screw screw rod (1), interior feed screw nut (10), outer leading screw screw rod (8), outer feed screw nut (9),
Inner sleeve (7), middle sleeve (6), outer sleeve (5), one-level guide rail (11), one-level sliding block (12), two grades of guide rails (13), two grades of sliding blocks
(14)；
Inner sleeve (7), middle sleeve (6), outer sleeve (5) are respectively hollow structure, and middle sleeve (6) is sheathed on inner sleeve (7) appearance
Face and its flexible connection, outer sleeve (5) is sheathed on middle sleeve (6) outer surface and it is flexibly connected；Motor (2), travelling gear pair
(4), in vertical shaft (3), interior leading screw screw rod (1), interior feed screw nut (10), outer leading screw screw rod (8), outer feed screw nut (9) are arranged on
Sleeve (7) is internal；
Motor (2) is flexibly connected with travelling gear to (4), and travelling gear is fixed on to the gear wheel in (4) on vertical shaft (3)；Pass
Moving gear is rotated to (4), drives vertical shaft (3) to rotate；
Interior leading screw screw rod (1) and outer leading screw screw rod (8) are respectively arranged on vertical shaft (3), and outer leading screw screw rod (8) is sheathed on internal thread
Thick stick screw rod (1) outer surface；Outer feed screw nut (9) is fixed on vertical shaft (3) top, and interior feed screw nut (10) is fixed in outer leading screw screw rod
(8) top；Thread friction torque between outer leading screw screw rod (8) and outer feed screw nut (9) is more than interior leading screw screw rod (1) and internal thread
Moment of friction between thick stick nut (10), the first relative motion of interior leading screw screw rod (1) and interior feed screw nut (10), then outer leading screw spiral shell
Relative motion is produced again between bar (8) and outer feed screw nut (9)；
The top of interior leading screw screw rod (1) is contacted with the lower surface on outer sleeve (5) top, when motor (2) is rotated forward, and motor (2) leads to
Over-subtraction quick change drives vertical shaft (3) to rotate to gear mesh (4), rotates interior leading screw screw rod (1), interior leading screw screw rod (1) heads on overcoat
Cylinder (5) rises；Interior leading screw screw rod (1) reach is identical with the range of outer sleeve (5), in the middle part of outer sleeve (5) inwardly
When the block of the protrusion block outwardly with middle sleeve (6) top is contacted, interior leading screw screw rod (1) is risen at thread termination,
Interior leading screw screw rod (1) stops operating, and because outer feed screw nut (9) is fixed, outer leading screw screw rod (8) begins to ramp up；Interior feed screw nut
(10) fix on outer leading screw screw rod (8), hereafter there is no relative motion between interior leading screw screw rod (1) and outer leading screw screw rod (8), outside
Leading screw screw rod (8) drives interior feed screw nut (10), interior leading screw screw rod (1), outer sleeve (5) and middle sleeve (6) to rise simultaneously, finally
The workbench that drive is fixed on outer sleeve (5) realizes ascending motion；
When motor (2) is inverted, motor (2) drives vertical shaft (3) to rotate by deceleration tumbler gear to 4, makes interior leading screw screw rod (1)
Decline；Outer sleeve (5) due to Action of Gravity Field as interior leading screw screw rod (1) declines together, when interior leading screw screw rod (1) drops to screw thread
During termination, outer sleeve (5) upper surface is pressed on the outwardly block in middle sleeve (6) top；Hereafter outer leading screw screw rod (8) is opened
Begin to rotate and move downward, while feed screw nut (10), interior leading screw screw rod (1) decline together in driving, outer sleeve (5) and middle set
Cylinder (6) under gravity also with declining together；
One-level guide rail (11) is fixed on the outside of middle sleeve (6), and one-level sliding block (12) is fixed on the inner side of outer sleeve (5)；Two grades
Guide rail (13) is fixed on the outside of inner sleeve (7), and two grades of sliding blocks (14) are fixed on the inner side of middle sleeve (6)；One-level guide rail (11)
The both sides of middle sleeve (6) barrel are symmetrically distributed in one-level sliding block (12), two grades of guide rails (13) and two grades of sliding blocks (14) are symmetrically divided
It is distributed in the both sides of inner sleeve (7) barrel.
2. it is used for the second-stage electric elevating mechanism in the small space of heavy load as claimed in claim 1, it is characterised in that：Outer sleeve
(5) in upper end closed or semi-closed structure, process of rising or falling, the upper end inner surface of outer sleeve (5) and interior leading screw screw rod (1)
Upper surface keeps contact；Inner sleeve (5) bottom is hollow structure, and top hollows out for part, vertical shaft (3), interior leading screw screw rod
(1), interior feed screw nut (10), outer leading screw screw rod (8) and outer feed screw nut (9) hollow out place through inner sleeve (7).
3. it is used for the second-stage electric elevating mechanism in the small space of heavy load as claimed in claim 1, it is characterised in that：
Middle sleeve (6) top it is outwardly convex go out block, have inwardly projecting block in the middle part of outer sleeve (5), when on outer sleeve (5)
Block relative fortune is produced when being in contact with the block on middle sleeve (6), between outer leading screw screw rod (8) and outer feed screw nut (9)
It is dynamic.
4. it is used for the second-stage electric elevating mechanism in the small space of heavy load as claimed in claim 1, it is characterised in that：Interior leading screw spiral shell
Bar (1) elder generation rise/fall, the rise/fall again of out screw rod screw rod 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621276165.2U CN206336977U (en) | 2016-11-25 | 2016-11-25 | A kind of second-stage electric elevating mechanism for the small space of heavy load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621276165.2U CN206336977U (en) | 2016-11-25 | 2016-11-25 | A kind of second-stage electric elevating mechanism for the small space of heavy load |
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| CN206336977U true CN206336977U (en) | 2017-07-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108100924A (en) * | 2016-11-25 | 2018-06-01 | 南京迈瑞生物医疗电子有限公司 | A kind of second-stage electric elevating mechanism for the small space of heavy load |
-
2016
- 2016-11-25 CN CN201621276165.2U patent/CN206336977U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108100924A (en) * | 2016-11-25 | 2018-06-01 | 南京迈瑞生物医疗电子有限公司 | A kind of second-stage electric elevating mechanism for the small space of heavy load |
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Effective date of registration: 20180207 Address after: 211100 Nanjing City, Jiangning Province Economic and Technological Development Zone, square road, No. 666 Middle Road, Jiangsu Patentee after: Nanjing Mindray Bio-Medical Electronics Co., Ltd. Address before: 210096 Jiangsu city Nanjing Province four pailou No. 2 Patentee before: Southeast University |