CN203006832U - Electric lifting rod - Google Patents
Electric lifting rod Download PDFInfo
- Publication number
- CN203006832U CN203006832U CN 201220558692 CN201220558692U CN203006832U CN 203006832 U CN203006832 U CN 203006832U CN 201220558692 CN201220558692 CN 201220558692 CN 201220558692 U CN201220558692 U CN 201220558692U CN 203006832 U CN203006832 U CN 203006832U
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- CN
- China
- Prior art keywords
- screw mandrel
- electric lifting
- sleeve pipe
- screw
- base
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- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an electric lifting rod which comprises a driving device and a lifting device. The driving device comprises a driving motor, a reducer and a hand-cranking box, wherein the lifting device comprises a base, a casing pipe and a transmission structure, and the casing pipe and the transmission structure are connected on the base. The electric lifting rod is characterized in that the transmission structure is arranged to be in a rolling spiral transmission structure and comprises lead screws and screws which are fixedly connected with the lead screws in a matched mode. The relative displacement of the casing pipe is achieved through transmission of the lead screws and the screws, other transmission modes like a steel wire rope are not adopted, so that bearing capacity is large, and reliability and safety are high. Due to the transmission of the multiple lead screws in an overlapped and sleeved mode, the transmission structure is simple, and dismantling, assembling and maintenance are convenient.
Description
Technical field
The utility model relates to a kind of lifting bar, has related in particular to the electric lifting rod of the nestable driving of a kind of multifibres bar, synchronization lifting.
Background technology
lifting bar is as the instrument of the equipment such as the quick high antenna of frame or lamps and lanterns, with through being widely applied, existing lifting bar adopts rope traction or common screw mandrel to drive mostly, need lock frequently release, driving efficiency is low, steel rope easily ruptures, lifting bar is " stuck " easily, fault rate is high, reliability and safety are relatively poor, and the height of lifting has limitation, meeting downslide progressively after lifting puts in place, therefore, for a person skilled in the art, solve the problems of the technologies described above in the new method of continuous trial always, but the technical scheme that never is fit to.
The utility model content
The utility model is just for problems of the prior art, and a kind of simple in structure, cost is lower, easy to operate, load-carrying capacity strong, stability is high electric lifting rod is provided.
To achieve these goals, the technical solution adopted in the utility model is as follows, a kind of electric lifting rod, comprise actuating device and jacking system, actuating device comprises drive motor, reductor and hand case, and jacking system comprises base, sleeve pipe, drive mechanism, sleeve pipe and drive mechanism all are connected on base, it is characterized in that, drive mechanism is set to the rolling spiral drive structure, and wherein drive mechanism comprises screw mandrel and is mated the screw of captive joint.
As a kind of improvement of the present utility model, the quantity of described sleeve pipe is n, is sleeve pipe 1,2,3 from outside to inside ... n is nestable successively, and wherein n is natural number, and n 〉=3; The quantity of described screw mandrel, screw is n-1, is followed successively by from inside to outside screw mandrel 1,2,3 ... n-1, wherein n is natural number, and n 〉=3, the quantity of screw is corresponding one by one with screw mandrel.
As a kind of improvement of the present utility model, pass through the self-lubricating bearing sliding block joint between described two adjacent sleeve pipes.
As a kind of improvement of the present utility model, described screw mandrel be helical pitch identical screw mandrel, the screw mandrel internal diameter has straight-through keyway, is connected by key between two adjacent rhizoid bars.
As a kind of improvement of the present utility model, described sleeve pipe is the square-section body of rod.
As a kind of improvement of the present utility model, described drive motor is the simulation lead limit switch for outage band-type brake motor, the master cock that actuating device adopts.Can guarantee that lifting in the work of high safety self-locking arbitrarily, guarantees the safety of end position.
As a kind of improvement of the present utility model, described screw is captiveed joint with base, and base is captiveed joint with sleeve pipe, and screw mandrel and base become captive joint in screw mandrel axial, is rotationally connected at the circumferential one-tenth of screw mandrel.
As a kind of improvement of the present utility model, the hermetically-sealed construction between described adjacent two sleeve pipes is rubber seal.Further guarantee its leak tightness, the anti-icing performance of waterproof sand prevention of lifting bar is good.
The utility model lifting bar uses rolling spiral drive, and load-carrying capacity is strong, and lifting process is steady, reliable, and driving efficiency is high; Lifting time is short.Adopted the body of rod in square cross section, the bending resistance of the body of rod and torsional property are good, the system that can guarantee reliable operation under harsh environment; All adopt caulking gum sealing between every pole, the waterproof of lifting bar, sand control, anti-icing performance are good; Because casing strength is high, but self-supporting work does not need to adopt steel rope to draw solid when therefore working, lifting bar is reduced greatly to the requirement of using the position, and saved staff, and integral structure is simple, and dismounting is easy to maintenance.
Description of drawings
Fig. 1 is the utility model constructional drawing;
Fig. 2 is the utility model example structure schematic diagram;
1 hand case wherein, 2 simulation lead limit switchs, 3 band-type brake motors, 4 reductors, 5 sleeve pipes, 5-1---5-4 sleeve pipe, 6 screws, 6-1---6-3 screw, 7 screw mandrels, 7-1---7-3 screw mandrel, 8 self-lubricating bearings, 9 rubber seal, 10 keys, 11 bases.
The specific embodiment
In order to deepen that understanding and cognition of the present utility model is described in further detail the utility model below in conjunction with the drawings and specific embodiments.
Embodiment 1:A kind of electric lifting rod as shown in Figure 1 comprises actuating device and jacking system, and actuating device comprises drive motor 3, reductor 4 and hand case 1, and jacking system comprises base 11, sleeve pipe 5, drive mechanism, and sleeve pipe 5 and drive mechanism all are connected on base 11; Drive mechanism comprises screw mandrel 7 and screw 6, and jacking system is by n sleeve pipe and n-1 screw mandrel and n-1 screw rolling screw associating drive mechanism; Screw mandrel 7 is captiveed joint with screw 6, screw 6 is captiveed joint with base 11, and base 11 is captiveed joint with sleeve pipe 5, and different screw mandrels is in transmission connection by key 10, different sleeve pipes is by self-lubricating bearing 8 sliding block joints, and the self-lubricating bearing between sleeve pipe plays the capable of reducing friction resistance effect.
Embodiment 2:As shown in Figure 1, sleeve pipe of the present utility model is rectangular tube, and guidance quality is good, and the bending resistance of the body of rod and anti-twist property performance are good; Cannula tip is provided with rubber seal 9, its waterproof of the rubber seal of cannula tip, sand prevention, the sealing function such as dustproof; The sleeve pipe upper end is provided with limiting stopper, plays machine security spacing; Screw mandrel, screw are the rolling screw pair of ball screw, and driving efficiency is high, but not self-locking adopts band-type brake motor 3 to play the safe lock function; The rising of lifting bar and decline positive and negatively transfer realization by what control motor, and the up and down of lifting bar is spacing realizes by a simulation stroke apparatus.
Embodiment 3:Further improve as the utility model, drive motor is the simulation lead limit switch for outage band-type brake motor 3, the master cock that actuating device adopts.Can guarantee that lifting in the work of high safety self-locking arbitrarily, guarantees the safety of end position.
Embodiment 4:Further improve as the utility model, described screw 6 is captiveed joint with base 11, and base 11 is captiveed joint with sleeve pipe 5, and screw mandrel 7 and base 11 become captive joint in screw mandrel axial, is rotationally connected at the circumferential one-tenth of screw mandrel.
specific works process: referring to Fig. 2, when n is 4, the rising working process of this utility model: actuating device drives screw mandrel 7-1 forward rotation, screw mandrel 7-1 drives its nestable screw mandrel 7-2 forward rotation outside by key 10, screw mandrel 7-2 drives its nestable screw mandrel 7-3 forward rotation outside successively by key 10, screw mandrel 7-1 promotes the relative sleeve pipe 5-1 of sleeve pipe 5-2 by screw 6-1 and moves up, screw mandrel 7-2 promotes the relative sleeve pipe 5-2 of sleeve pipe 5-3 by screw 6-2 and moves up, screw mandrel 7-3 promotes the relative sleeve pipe 5-3 of sleeve pipe 5-4 by screw 6-3 and moves up, due to screw mandrel, the rotating speed of screw is identical, helical pitch is identical, therefore, each sleeve pipe speed that relatively moves up is identical, the synchronous rising of each joint of lifting bar.
decline working process and the uphill process of this utility model are similar, be specially, actuating device drives screw mandrel 7-1 backward rotation, screw mandrel 7-1 drives its nestable screw mandrel 7-2 backward rotation outside by key 10, screw mandrel 7-2 drives its nestable screw mandrel 7-3 backward rotation outside successively by key 10, screw mandrel 7-1 promotes the relative sleeve pipe 5-1 of sleeve pipe 5-2 by screw 6-1 and moves down, screw mandrel 7-2 promotes the relative sleeve pipe 5-2 of sleeve pipe 5-3 by screw 6-2 and moves down, screw mandrel 7-3 promotes the relative sleeve pipe 5-3 of sleeve pipe 5-4 by screw 6-3 and moves down, due to screw mandrel, the rotating speed of screw is identical, helical pitch is identical, therefore, it is identical that each sleeve pipe moves down speed relatively, the synchronous decline of each joint of lifting bar.
The utility model can also be combined to form new embodiment with at least one and the embodiment 1 in the described technical characterictic of embodiment 2-4.
Need to prove above-described embodiment, is only preferred embodiment of the present utility model, is not to limit protection domain of the present utility model, and the equivalents of having done based on the above method all belongs to protection domain of the present utility model.
Claims (9)
1. electric lifting rod, comprise actuating device and jacking system, actuating device comprises drive motor, reductor and hand case, jacking system comprises base, sleeve pipe, drive mechanism, sleeve pipe and drive mechanism all are connected on base, it is characterized in that, drive mechanism is set to the rolling spiral drive structure, and wherein drive mechanism comprises screw mandrel and is mated the screw of captive joint.
2. electric lifting rod according to claim 1, is characterized in that, the quantity of described sleeve pipe is n, and sleeve pipe is nestable successively from outside to inside, and wherein n is natural number, and n 〉=3.
3. electric lifting rod according to claim 2, is characterized in that, the quantity of described screw mandrel, screw is n-1, and screw mandrel is installed from inside to outside successively, and wherein n is natural number, and n 〉=3, and the quantity of screw is corresponding one by one with screw mandrel.
4. according to claim 2 or 3 described electric lifting rods, is characterized in that, passes through the self-lubricating bearing sliding block joint between described two adjacent sleeve pipes.
5. according to claim 2 or 3 described electric lifting rods, is characterized in that, described screw mandrel be helical pitch identical screw mandrel, the screw mandrel internal diameter has straight-through keyway, is connected by key between two adjacent rhizoid bars.
6. according to claim 2 or 3 described electric lifting rods, is characterized in that, described sleeve pipe is the square-section body of rod.
7. according to claim 2 or 3 described electric lifting rods, is characterized in that, described drive motor is the simulation lead limit switch for outage band-type brake motor, the master cock that actuating device adopts.
8. according to claim 2 or 3 described electric lifting rods, is characterized in that, described screw is captiveed joint with base, and base is captiveed joint with sleeve pipe, and screw mandrel and base become captive joint in screw mandrel axial, is rotationally connected at the circumferential one-tenth of screw mandrel.
9. according to claim 2 or 3 described electric lifting rods, is characterized in that, the hermetically-sealed construction between described adjacent two sleeve pipes is rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558692 CN203006832U (en) | 2012-10-29 | 2012-10-29 | Electric lifting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558692 CN203006832U (en) | 2012-10-29 | 2012-10-29 | Electric lifting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203006832U true CN203006832U (en) | 2013-06-19 |
Family
ID=48598447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220558692 Expired - Lifetime CN203006832U (en) | 2012-10-29 | 2012-10-29 | Electric lifting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203006832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456367A (en) * | 2020-11-23 | 2021-03-09 | 杭州森乐实业有限公司 | Multistage lifting stand column |
-
2012
- 2012-10-29 CN CN 201220558692 patent/CN203006832U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456367A (en) * | 2020-11-23 | 2021-03-09 | 杭州森乐实业有限公司 | Multistage lifting stand column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |