CN109081258A - A kind of heavy-load type multiple coil lifting device - Google Patents
A kind of heavy-load type multiple coil lifting device Download PDFInfo
- Publication number
- CN109081258A CN109081258A CN201811138679.5A CN201811138679A CN109081258A CN 109081258 A CN109081258 A CN 109081258A CN 201811138679 A CN201811138679 A CN 201811138679A CN 109081258 A CN109081258 A CN 109081258A
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- China
- Prior art keywords
- lifting
- level
- driving
- heavy
- multiple coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003139 buffering effect Effects 0.000 claims description 16
- 230000004308 accommodation Effects 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000003028 elevating effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000007257 malfunction Effects 0.000 abstract description 2
- 230000003252 repetitive effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/20—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through multiple or change-speed gearings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The present invention provides a kind of electric multi-stage worm drive lifting device, which is to drive trapezoidal drving sprial rotation as the matched gear reduction unit of power drive by servo motor, thus the lifting of implementation mechanism.The sequence lock that sets in mechanism can guarantee that basis screw rod stretches out step by step with N grades of tubulose drive lead screws when mechanism is stretched out, when mechanism retraction N grades of tubulose drive lead screw basis screw rods with retract step by step；The present invention can be satisfied with that requirement elevating mechanism installation space is narrow, and lifting travel is big, service load is big, repetitive positioning accuracy is high using laminated structure, not allow all kinds of mechanical and workplaces using combustible medium such as hydraulic oil.The base support face not usually leveling of equipment when the buffer gear that mechanism is solely set is used in combination for more lifting devices, man-operated mechanism is used for manual operation to mechanism when lifting device motor cisco unity malfunction, effectively overcomes that jacking system positioning accuracy is low, processing and manufacturing is at high cost, pollution environment, the disadvantages of system jitterbug rate is high.
Description
Technical field
The present invention relates to a kind of spiral lift device, in particular to a kind of heavy-load type multiple coil lifting device.
Background technique
Single-stage or multistage hydraulic cylinder is widely used as negative in current heavy duty engineering truck, aerospace equipment, communication apparatus
The driving power of load finds that fluid power system has the disadvantage in that in long-term application process
(1) hydraulic pressure signal transmission speed is not easy to be corrected slowly, and positioning accuracy is low；
(2) hydraulic system structure is complicated, processing and manufacturing is at high cost；
(3) temperature is very big to the viscosity influence of hydraulic oil, thus the variation of temperature system performance is influenced it is obvious, when low temperature
Friction loss increases, and leakage increases when high temperature, cannot meet the requirement of the very big equipment of the temperature difference very well.
(4) leakage of hydraulic system is the weakness that system can not overcome, therefore hydraulic system pollution environment, easily initiation are fiery
Calamity；
(5) hydraulic system environmental pollution is sensitive, the pollution of hydraulic oil, and will cause control valve blocking executing agency can not be just
Often work.
Summary of the invention
The present invention provides a kind of heavy-load type multiple coil lifting device, can solve jacking system positioning in the prior art
Precision is low, processing and manufacturing is at high cost, pollutes the high problem of environment, system jitterbug rate.
A kind of heavy-load type multiple coil lifting device, the drive including spiral lifting component and for driving spiral lifting component
Dynamic device, the spiral lifting component include outer sleeve and the level-one lifting assembly being arranged in outer sleeve, secondary lifting component,
Sequence lock set；
The level-one lifting assembly has level-one lifting tube, the level-one lifting screw that is arranged in level-one lifting tube and with one
The level-one lifting nut of grade lifting screw adaptation, the level-one lifting nut are detachably connected with level-one lifting tube；
The secondary lifting component is socketed in level-one lifting tube, is had secondary lifting cylinder, is arranged in secondary lifting cylinder
Secondary lifting screw rod and the secondary lifting nut that is adapted to secondary lifting screw rod, the input terminal indent of the secondary lifting screw rod
It is formed with accommodation space；
The sequence lock set have first from lock section and with first from lock section compatible second from lock section, described first
From lock section connection level-one lifting screw output end, described second from lock section connection secondary lifting screw rod input terminal and be arranged exist
In accommodation space, the output end of the level-one lifting screw protrudes into accommodation space and by sequence lock set and secondary lifting screw rod
Separation or connection；
Wherein, it is clamped outside the output shaft of the driving device and is provided with buffering guide, the buffering guide passes through buffering dress
It sets and stretches in load-carrying ring, the load-carrying ring is socketed in the input terminal of level-one lifting screw, the input of the level-one lifting screw
It is provided with unthreaded hole on end and protrudes into the output shaft outer end of driving device to form sliding pair, the output shaft outer end of the driving device
On be provided with and the unthreaded hole that is adapted to of lifting screw, slidiing pin pass through each corresponding unthreaded hole to form sliding pair.
More preferably, the buffer unit is compressed spring, is socketed in outside buffering guide, the cushion pins, which are put on, is provided with resistance
Stopper is so that buffer unit acts between blocking portion and load-carrying ring.
More preferably, also socket is provided with needle bearing on the level-one lifting nut, and setting is socketed outside the needle bearing
There is the level-one guide holder with outer sleeve clearance fit, clamping is provided with level-one guide ring on the outside of the level-one guide holder.
More preferably, level-one guide-localization set is provided between the outer end and outer sleeve outer end of the level-one lifting tube.
More preferably, the secondary lifting nut and level-one lifting tube inner wall clearance fit, and secondary lifting nut outer end card
It connects and is provided with second level guide ring.
More preferably, second level guide-localization is provided between the outer end of the secondary lifting cylinder and the outer end of level-one lifting tube
Set.
More preferably, the described first output end for being detachably arranged at level-one lifting screw from lock section, described first from lock section
The end face that lock section cooperates is provided with several grooves with second, described second from lock section with first from the end face that lock section cooperates
It is provided with several protrusions being adapted to groove.
More preferably, the driving device is retarder, comprising:
Deceleration box；
Driving gear is arranged in deceleration box；
Driving shaft connects driving gear；
Servo motor is arranged outside deceleration box, and output end protrudes into deceleration box and connects driving shaft；
Driven gear is arranged in deceleration box, is meshed with driving gear；And
Driven shaft connects driven gear and stretches out deceleration box, is the output end of driving device.
More preferably, the driving shaft stretches out the deceleration box of servo motor opposite side, and extension end is provided with manual clutch
It is socketed outside the abutting end of bar, the manual clutch bar and driving shaft and is provided with clutch, one end of the clutch and driving tooth
Wheel engagement, the other end are provided with card slot be adapted to on-of pin, the on-of pin setting on manual clutch bar and manually from
It is clamped or separates with clutch under the action of conjunction bar.
More preferably, knob is additionally provided on the outer end of the manual clutch bar.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention provides a kind of electric multi-stage worm drive lifting device, which is to be driven by servo motor as power
It moves matched gear reduction unit and drives trapezoidal drving sprial rotation, thus the lifting of implementation mechanism.The sequence lock set in mechanism can
Guarantee that basis screw rod stretches out step by step with N grades of tubulose drive lead screws when mechanism is stretched out, N grades of tubulose drive lead screw bases when mechanism retracts
Screw rod with retract step by step；
2, it is narrow using laminated structure can be satisfied with requirement elevating mechanism installation space by the present invention, and lifting travel is big, work
Make that load is big, repetitive positioning accuracy is high, does not allow all kinds of mechanical and workplaces using combustible medium such as hydraulic oil.Mechanism is only
If buffer gear for more lifting devices be used in combination when the not usually leveling of equipment of base support face.The hand that mechanism is solely set
Manual operation when motivation structure is for lifting device motor cisco unity malfunction to mechanism；
3, the present invention effectively overcomes that jacking system positioning accuracy is low, processing and manufacturing is at high cost, pollution environment, system are unstable
The disadvantages of determining high failure rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention；
Fig. 2 is the partial enlarged view of sequence lock set 15 in one embodiment of the invention；
Fig. 3 is the partial enlarged view of spiral lifting component in one embodiment of the invention；
Fig. 4 is the partial enlarged view of driving device in one embodiment of the invention；
Fig. 5 is the partial enlarged view of manual clutch bar 23 in one embodiment of the invention.
Description of symbols:
1, outer sleeve, 2, level-one lifting screw, 3, load-carrying ring, 4, compressed spring, 5, buffering guide, 6, needle bearing, 7,
Level-one guide ring, 8, level-one guide holder, 9, level-one lifting nut, 10, secondary lifting screw rod, 11, second level guide ring, 12, second level
Lifting nut, 13, secondary lifting cylinder, 14, level-one lifting tube, 15, sequence lock set, 15-1, first are from lock section, 15-2, second
From lock section, 15-3, protrusion, 15-4, groove, 16, level-one guide-localization set, 17, second level guide-localization set, 18, driven shaft, 19,
Deceleration box, 20, driven gear, 21, servo motor, 22, driving gear, 23, manual clutch bar, 24, driving shaft, 25, sliding
Pin shaft, 26, clutch, 27, on-of pin, 28, knob.
Specific embodiment
With reference to the accompanying drawing, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention
Protection scope be not limited by the specific implementation.
As shown in Figures 1 to 5, a kind of heavy-load type multiple coil lifting device provided in an embodiment of the present invention, including spiral
Lifting assembly and driving device for driving spiral lifting component, the spiral lifting component include that outer sleeve 1 and setting exist
Level-one lifting assembly, secondary lifting component, sequence lock set 15 in outer sleeve 1；
The level-one lifting assembly has level-one lifting tube 14, the level-one lifting screw 2 being arranged in level-one lifting tube 14
With the level-one lifting nut 9 being adapted to level-one lifting screw 2, the level-one lifting nut 9 detachably connects with level-one lifting tube 14
It is connected together；
The secondary lifting component is socketed in level-one lifting tube 14, is had secondary lifting cylinder 13, is arranged in secondary lifting
Secondary lifting screw rod 10 in cylinder 13 and the secondary lifting nut 12 that is adapted to secondary lifting screw rod 10, the secondary lifting screw rod
10 input terminal has been recessed accommodation space；
The sequence lock set 15 has first from lock section 15-1 and compatible second self-locking from lock section 15-1 with first
Portion 15-2, described first from the output end of lock section 15-1 connection level-one lifting screw 2, and described second from lock section 15-2 connection second level
The input terminal of lifting screw 10 is simultaneously arranged in accommodation space, and the output end of the level-one lifting screw 2 protrudes into accommodation space simultaneously
It separates or connects with secondary lifting screw rod 10 by sequence lock set 15；
Wherein, it is clamped outside the output shaft of the driving device and is provided with buffering guide 5, the buffering guide 5 passes through buffering
Device stretches in load-carrying ring 3, and the load-carrying ring 3 is socketed in the input terminal of level-one lifting screw 2, the level-one lifting screw 2
Input terminal on be provided with unthreaded hole and protrude into the output shaft outer end of driving device to form sliding pair, the output of the driving device
Be provided on axis outer end with and the unthreaded hole that is adapted to of lifting screw, slidiing pin 25 pass through each corresponding unthreaded hole to form sliding pair.
When it is implemented, the buffer unit is compressed spring 4, it is socketed in outside buffering guide 5, on the buffering guide 5
Blocking portion is provided with so that buffer unit acts between blocking portion and load-carrying ring 3.
When it is implemented, also socket is provided with needle bearing 6,6 housing of needle bearing on the level-one lifting nut 9
The level-one guide holder 8 being provided with 1 clearance fit of outer sleeve is connect, clamping is provided with level-one guiding on the outside of the level-one guide holder 8
Ring 7.
When it is implemented, being provided with level-one guide-localization between 1 outer end of outer end and outer sleeve of the level-one lifting tube 14
Set 16.
When it is implemented, the secondary lifting nut 12 and 14 inner wall clearance fit of level-one lifting tube, and secondary lifting spiral shell
Female 12 outer ends clamping is provided with second level guide ring 11.
It is led when it is implemented, being provided with second level between the outer end of the secondary lifting cylinder 13 and the outer end of level-one lifting tube 14
To positioning sleeve 17.
When it is implemented, described first is detachably arranged at the output end of level-one lifting screw 2 from lock section 15-1, described
One is provided with several groove 15-4 from the end face that lock section 15-2 cooperates from lock section 15-1 and second, and described second from lock section 15-2
The end face that lock section 15-1 cooperates is provided with several protrusion 15-3 being adapted to groove 15-4 with first.
When it is implemented, the driving device is retarder, comprising:
Deceleration box 19；
Driving gear 22 is arranged in deceleration box 19；
Driving shaft 24 connects driving gear 22；
Servo motor 21 is arranged outside deceleration box 19, and output end protrudes into deceleration box 19 and connects driving shaft 24；
Driven gear 20 is arranged in deceleration box 19, is meshed with driving gear 22；And
Driven shaft 18 connects driven gear 20 and stretches out deceleration box 19, is the output end of driving device.
When it is implemented, the driving shaft 24 stretches out the deceleration box 19 of 21 opposite side of servo motor, and it is arranged in extension end
Have a manual clutch bar 23, be socketed outside the manual clutch bar 23 and the abutting end of driving shaft 24 and be provided with clutch 26, it is described from
One end of clutch 26 is engaged with driving gear 22, and the other end is provided with the card slot being adapted to on-of pin 27, and the on-of pin 27 is set
It sets and is clamped or separates on manual clutch bar 23 and with clutch 26 under the action of manual clutch bar 23.
When it is implemented, being additionally provided with knob 28 on the outer end of the manual clutch bar 23.
The operation principle of the present invention is that:
The present invention is mainly made of two big components, i.e. the retarder with manual adjusting device and the spiral shell with buffer unit
Revolve lifting assembly.
1, with the retarder of manual adjusting device
Under normal operating conditions, clutch 26 is engaged with driving gear 22, and 22 empty set of driving gear is on driving shaft 24.Electricity
It is driven by servo motor 21- driving shaft 24- on-of pin 27- clutch 26- driving gear 22- driven gear 20- after machine starting
The order of axis 18 completes the output of power.
Manual clutch bar 23 is pulled down when electrical fault or power failure and is rotated by 90 °, on-of pin 27 is made to be stuck in clutch 26
Than disengaging clutch 26 and driving shaft 24 in shallower card slot.It is realized and is manually operated using special spanner rotary clutch 26,
Power transmission line is as follows: clutch 26- driving gear 22- driven gear 20- driven shaft 18 completes the output of power.
2, with the spiral lifting component of buffer unit
Lifting screw and lifting tube at different levels are in retracted mode under lifting assembly reset condition, and sequence lock is locked automatically at this time
It is fixed.
When lifting assembly stretches out: power is transmitted to the buffering guide 5 of lifting assembly by the driven shaft 18 of retarder, by slow
Write off set 10 risings of 5- slidiing pin 25- level-one lifting screw 2-- sequence lock set 15- secondary lifting screw rod-secondary lifting spiral shell
Female 12- secondary lifting cylinder 13 rises in place -9 risings of level-one lifting nut -15 openings of sequence lock set-level-one lifting nut 9
8 risings of liter-level-one guide holder-level-one lifting tube 14 is until go up and down in place.
It is the inverse process of stretching when lifting assembly retracts.
Disclosed above is only several specific embodiments of the invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think variation should all fall into protection scope of the present invention.
Claims (10)
1. a kind of heavy-load type multiple coil lifting device, the driving including spiral lifting component and for driving spiral lifting component
Device, which is characterized in that the spiral lifting component includes the level-one lifting group of outer sleeve (1) and setting in outer sleeve (1)
Part, secondary lifting component, sequence lock set (15)；
The level-one lifting screw that the level-one lifting assembly has level-one lifting tube (14), is arranged in level-one lifting tube (14)
(2) and with level-one lifting screw (2) the level-one lifting nut (9) being adapted to, the level-one lifting nut (9) and level-one lifting tube
(14) it is detachably connected；
The secondary lifting component is socketed in level-one lifting tube (14), is had secondary lifting cylinder (13), is arranged in secondary lifting
Secondary lifting screw rod (10) in cylinder (13) and the secondary lifting nut (12) that is adapted to secondary lifting screw rod (10), the second level
The input terminal of lifting screw (10) has been recessed accommodation space；
The sequence lock set (15) have first from lock section (15-1) and with first from lock section (15-1) compatible second from
Lock section (15-2), described first from the output end of lock section (15-1) connection level-one lifting screw (2), and described second from lock section (15-
2) it connects the input terminal of secondary lifting screw rod (10) and is arranged in accommodation space, the output end of the level-one lifting screw (2)
It protrudes into accommodation space and separates or connect with secondary lifting screw rod (10) by sequence lock set (15)；
Wherein, it is clamped outside the output shaft of the driving device and is provided with buffering guide (5), the buffering guide (5) passes through buffering
Device stretches in load-carrying ring (3), and the load-carrying ring (3) is socketed in the input terminal of level-one lifting screw (2), the level-one lifting
It is provided with unthreaded hole on the input terminal of screw rod (2) and protrudes into the output shaft outer end of driving device to form sliding pair, the driving dress
Be provided on the output shaft outer end set with and the unthreaded hole that is adapted to of lifting screw, slidiing pin (25) pass through each corresponding unthreaded hole with group
At sliding pair.
2. a kind of heavy-load type multiple coil lifting device as described in claim 1, it is characterised in that: the buffer unit is pressure
Contracting spring (4) is socketed in buffering guide (5) outside, is provided with blocking portion so that buffer unit is stopping on the buffering guide (5)
It is acted between portion and load-carrying ring (3).
3. a kind of heavy-load type multiple coil lifting device as described in claim 1, it is characterised in that: the level-one lifting nut
(9) also socket is provided with needle bearing (6) on, and the needle bearing (6) is socketed outside to be provided with and outer sleeve (1) clearance fit
Level-one guide holder (8), level-one guide holder (8) outside clamping are provided with level-one guide ring (7).
4. a kind of heavy-load type multiple coil lifting device as described in claim 1, it is characterised in that: the level-one lifting tube
(14) level-one guide-localization set (16) is provided between outer end and outer sleeve (1) outer end.
5. a kind of heavy-load type multiple coil lifting device as described in claim 1, it is characterised in that: the secondary lifting nut
(12) with level-one lifting tube (14) inner wall clearance fit, and secondary lifting nut (12) outer end clamping be provided with second level guide ring
(11)。
6. a kind of heavy-load type multiple coil lifting device as described in claim 1, it is characterised in that: the secondary lifting cylinder
(13) second level guide-localization set (17) is provided between the outer end of outer end and level-one lifting tube (14).
7. a kind of heavy-load type multiple coil lifting device as described in claim 1, it is characterised in that: described first from lock section
(15-1) is detachably arranged at the output end of level-one lifting screw (2), described first from lock section (15-1) with second from lock section
Be provided with several grooves (15-4) on the end face of (15-2) cooperation, described second from lock section (15-2) with first from lock section (15-1)
Several raised (15-3) being adapted to groove (15-4) are provided on the end face of cooperation.
8. a kind of heavy-load type multiple coil lifting device as described in claim 1, which is characterized in that the driving device is to subtract
Fast device, comprising:
Deceleration box (19)；
Driving gear (22), setting is in deceleration box (19)；
Driving shaft (24) connects driving gear (22)；
Servo motor (21), setting deceleration box (19) outside, output end protrudes into deceleration box (19) and connects driving shaft
(24)；
Driven gear (20), setting are meshed in deceleration box (19) with driving gear (22)；And
Driven shaft (18) connects driven gear (20) and stretches out deceleration box (19), is the output end of driving device.
9. a kind of heavy-load type multiple coil lifting device as claimed in claim 8, it is characterised in that: the driving shaft (24) is stretched
The deceleration box (19) of servo motor (21) opposite side out, and extension end is provided with manual clutch bar (23), the manual clutch
It is socketed and is provided with clutch (26) outside bar (23) and the abutting end of driving shaft (24), one end of the clutch (26) and driving tooth
(22) engagement is taken turns, the other end is provided with the card slot being adapted to on-of pin (27), and the on-of pin (27) is arranged in manual clutch bar
(23) it is clamped or separates on and with clutch (26) under the action of manual clutch bar (23).
10. a kind of heavy-load type multiple coil lifting device as claimed in claim 9, it is characterised in that: the manual clutch bar
(23) knob (28) are additionally provided on outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811138679.5A CN109081258B (en) | 2018-09-28 | 2018-09-28 | Heavy-duty type multistage spiral lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811138679.5A CN109081258B (en) | 2018-09-28 | 2018-09-28 | Heavy-duty type multistage spiral lifting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109081258A true CN109081258A (en) | 2018-12-25 |
| CN109081258B CN109081258B (en) | 2024-02-09 |
Family
ID=64842661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811138679.5A Active CN109081258B (en) | 2018-09-28 | 2018-09-28 | Heavy-duty type multistage spiral lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109081258B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076551A (en) * | 2019-05-30 | 2019-08-02 | 燕山大学 | A kind of hydraulic locking apparatus |
| CN111039221A (en) * | 2019-11-08 | 2020-04-21 | 合肥科大智能机器人技术有限公司 | Light lead screw lifting mechanism |
| CN111755795A (en) * | 2020-07-03 | 2020-10-09 | 石家庄硕华电子科技有限公司 | Vehicle-mounted antenna bracket with multi-stage lifting structure |
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| CN201530699U (en) * | 2009-09-22 | 2010-07-21 | 重庆华伟工业（集团）有限责任公司 | Screw-type automatic lift equipment |
| CN101817485A (en) * | 2010-03-25 | 2010-09-01 | 中国人民解放军国防科学技术大学 | Large-stroke multistage lifting method and device |
| CN102659056A (en) * | 2012-04-27 | 2012-09-12 | 江苏科技大学 | Heavy-load high-accuracy lifting device with multiple sections capable of freely extending and retracting |
| CN209010050U (en) * | 2018-09-28 | 2019-06-21 | 武汉道森传动科技有限公司 | A kind of heavy-load type multiple coil lifting device |
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| JPH02159404A (en) * | 1988-12-12 | 1990-06-19 | K & M Enterp Kk | Freely expandable support device |
| KR19990026480A (en) * | 1997-09-24 | 1999-04-15 | 이희철 | Telescopic multi-level lifting device |
| CN201530699U (en) * | 2009-09-22 | 2010-07-21 | 重庆华伟工业（集团）有限责任公司 | Screw-type automatic lift equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076551A (en) * | 2019-05-30 | 2019-08-02 | 燕山大学 | A kind of hydraulic locking apparatus |
| CN110076551B (en) * | 2019-05-30 | 2020-05-08 | 燕山大学 | Hydraulic locking device |
| CN111039221A (en) * | 2019-11-08 | 2020-04-21 | 合肥科大智能机器人技术有限公司 | Light lead screw lifting mechanism |
| CN111755795A (en) * | 2020-07-03 | 2020-10-09 | 石家庄硕华电子科技有限公司 | Vehicle-mounted antenna bracket with multi-stage lifting structure |
| CN111755795B (en) * | 2020-07-03 | 2022-10-04 | 石家庄硕华电子科技有限公司 | Vehicle-mounted antenna bracket with multi-stage lifting structure |
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| Publication number | Publication date |
|---|---|
| CN109081258B (en) | 2024-02-09 |
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