CN207511751U - A kind of multistage jack - Google Patents
A kind of multistage jack Download PDFInfo
- Publication number
- CN207511751U CN207511751U CN201721641533.3U CN201721641533U CN207511751U CN 207511751 U CN207511751 U CN 207511751U CN 201721641533 U CN201721641533 U CN 201721641533U CN 207511751 U CN207511751 U CN 207511751U
- Authority
- CN
- China
- Prior art keywords
- worm gear
- elevating mechanism
- worm
- stage
- screw
- 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.)
- Active
Links
Landscapes
- Gear Transmission (AREA)
- Transmission Devices (AREA)
Abstract
The utility model discloses a kind of multistage jack, including：Top, first-stage worm gear worm screw elevating mechanism and second-stage worm gear worm screw elevating mechanism, first-stage worm gear worm screw elevating mechanism includes level-one and jacks movable end, second-stage worm gear worm screw elevating mechanism includes two level and jacks movable end, top is set to level-one jacking movable end, and two level jacking movable end is connect with first-stage worm gear worm screw elevating mechanism so that first-stage worm gear worm screw elevating mechanism can make integral elevating movement.The utility model multistage jack adapts to the jacking demand in the case that height is restricted, while has auto-lock function, reaches and operates steadily, and aspect is kept to stablize, and improves the technique effect of lifting operation degree of safety.
Description
Technical field
The utility model is related to a kind of jacking apparatus, in particular to a kind of multistage jack.
Background technology
Aircraft carries out counterweight, weighs, during the work such as horizontal location, center of gravity measurement, pose calibrating or experiment, needs thousand
Jin top is jacked or is declined respectively, to adjust the posture of aircraft.Due to aircraft model and reasons in structure, it is liftoff to limit top nest
Highly, if the top nest of head position is from the ground apart from relatively low (top minimum altitude small), and require the stroke of jacking big, existing skill
Above-mentioned jacking work is completed usually using Multi-stage hydraulic jack in art, however there are fluctuations of service for Multi-stage hydraulic jack
Technical problem be easy to cause posture shakiness in aircraft assembling and maintenance process, serious even to cause security risk.
Utility model content
The purpose of this utility model is to provide a kind of multistage jacks, adapt to the top in the case that height is restricted
The demand of liter, with good stability and safety.
What the embodiment of the utility model was realized in：
A kind of multistage jack, including：Top, first-stage worm gear worm screw elevating mechanism and second-stage worm gear worm screw elevating mechanism,
First-stage worm gear worm screw elevating mechanism includes level-one and jacks movable end, and second-stage worm gear worm screw elevating mechanism includes two level jacking activity
End, top are set to level-one jacking movable end, and two level jacking movable end is connect with first-stage worm gear worm screw elevating mechanism so that level-one
Worm and gear elevating mechanism can make integral elevating movement.
Further, first-stage worm gear worm screw elevating mechanism further includes the first worm gear and the first worm screw, level-one jacking movable end
For the first screw, the first worm gear set is set on the first screw and is connect with the first wire rod thread, and the first worm screw engages with the first worm gear,
Top is set to the top of the first screw.
Further, second-stage worm gear worm screw elevating mechanism is further included including the second worm gear, the second worm screw and the second screw, and two
Grade jacking movable end is the flange nut being sheathed on the second screw, and the second worm screw engages with the second worm gear, the setting of the second screw
In the second worm gear center, first-stage worm gear worm screw elevating mechanism is connect with flange nut.
Further, the quantity of second-stage worm gear worm screw elevating mechanism is three, and three second-stage worm gear worm screw elevating mechanisms are in
Triangular arrangement, first-stage worm gear worm screw elevating mechanism are set in the space that three second-stage worm gear worm screw elevating mechanisms enclose, and three
The flange nut of a second-stage worm gear worm screw elevating mechanism is connect respectively with first-stage worm gear worm screw elevating mechanism.
Further, first-stage worm gear worm screw elevating mechanism is set in movable platform, and movable platform includes three linking arms,
The flange nut of three linking arms and three second-stage worm gear worm screw elevating mechanisms connects one to one.
Further, second-stage worm gear worm screw elevating mechanism is set on structure platform, and structure platform is equipped with support plate and work
Driving wheel.
Further, top is connected with weighing sensor, and weighing sensor is connected with insulation adapter.
Further, first-stage worm gear worm screw elevating mechanism is equipped with the first motor, and the first motor connects the first worm screw, two level snail
Worm and gear elevating mechanism is equipped with the second motor, and the second motor connects the second worm screw.
Further, the first motor is set in vertical state with the first screw, the second motor and the perpendicular shape of the second screw
State is set.
Further, which further includes multiple for second-stage worm gear worm screw elevating mechanism to be driven to make integral elevating
The additional worm gears worm screw elevating mechanism of movement.
The advantageous effect of the utility model embodiment is：
1. warp applicants have found that, although using Multi-stage hydraulic jack also can complete jacking work, there are following
Defect：(1) it needs to increase mechanical locking device, carries out safeguard protection, prevent that mandril decline occurs due to hydraulic oil is revealed；(2)
Since the fit clearance between mandril and outer barrel is big, stability is poor.The utility model realizes top using worm and gear elevating mechanism
It rises, using the auto-lock function of worm and gear elevating mechanism, reaches and operate steadily, aspect is kept to stablize, improve lifting operation
The purpose of degree of safety；
2. the combination of worm and gear elevating mechanism, superposition use, level-one jacking movable end drives top lifting, and two level jacking is lived
Moved end drives first-stage worm gear worm screw to make integral elevating movement, by the way of the utility model multistage jack is using multistage jacking, from
And jack oneself height is reduced, the jacking stroke of jack is improved, is restricted with adapting to height, and needs the thousand of big stroke
The operating mode on jin top.
Description of the drawings
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the vertical view of multistage jack in the utility model embodiment 1；
Fig. 2 is multistage jack minimum state schematic diagram in the utility model embodiment 1；
Fig. 3 is that multistage jack level-one jacks status diagram in the utility model embodiment 1；
Fig. 4 is that multistage jack jacks highest status diagram in the utility model embodiment 1；
Fig. 5 is the first screw, the first worm gear and the first worm screw attachment structure schematic diagram in the utility model embodiment 1；
Fig. 6 is the second worm gear, the second worm screw and the second screw attachment structure schematic diagram in the utility model embodiment 1.
Icon：100th, it comes directly towards；200th, first-stage worm gear worm screw elevating mechanism；210th, the first screw；220th, the first worm gear；230、
First worm screw；300th, second-stage worm gear worm screw elevating mechanism；310th, the second screw, the 320, second worm gear；330th, the second worm screw；340、
Flange nut；400th, movable platform；410th, linking arm；500th, structure platform；510th, support plate；520th, castor；600th, it weighs
Sensor；610th, insulate adapter；810th, the first motor；820th, the second motor.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of different.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship be based on orientation shown in the drawings or position relationship or
The utility model product using when the orientation usually put or position relationship, be for only for ease of description the utility model and letter
Change description rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that limitation to the utility model.
Term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；It can be directly connected, can also be indirectly connected by intermediary, can be the company inside two elements
It is logical.For the ordinary skill in the art, it can understand that above-mentioned term is specific in the utility model with concrete condition
Meaning.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of multistage jack, including：Top 100, first-stage worm gear worm screw elevating mechanism 200 and two
Grade worm and gear elevating mechanism 300, first-stage worm gear worm screw elevating mechanism 200 include level-one and jack movable end, second-stage worm gear worm screw
Elevating mechanism 300 includes two level and jacks movable end, and top 100 is set to level-one jacking movable end, two level jacking movable end and one
Grade worm and gear elevating mechanism 200 is connected so that first-stage worm gear worm screw elevating mechanism 200 can make integral elevating movement.
Through applicants have found that, although using Multi-stage hydraulic jack also can complete jacking work, there are it is following lack
It falls into：(1) it needs to increase mechanical locking device, carries out safeguard protection, prevent that mandril decline occurs due to hydraulic oil is revealed；(2) by
Fit clearance between mandril and outer barrel is big, and stability is poor.The multistage jack of the utility model is lifted using worm and gear
The following features of worm and gear elevating mechanism are effectively utilized as jacking apparatus in mechanism：(1) bearing for cross component force is improved
Ability increases substantially stabilization of equipment performance；(2) worm and gear and the distinctive auto-lock function of Worm gear feed screw ensure equipment safety；
(3) elaborate position controls；(4) high rigidity, high impact-resistant power；(5) Operation and Maintenance is simple, and noise is low, long lifespan.Therefore this practicality is new
The multistage jack of type, which has, to operate steadily, and aspect is kept to stablize, improves the technique effect of lifting operation degree of safety.
In a manner that worm and gear elevating mechanism combines, superposition uses, level-one jacking movable end drives the utility model
100 lifting of top, two level jacking movable end drives 220 worm screw of the first worm gear to make integral elevating movement, using the side of multistage jacking
Formula so as to reduce jack oneself height, improves the jacking stroke of jack, is restricted with adapting to height, and need big row
The operating mode of the jack of journey.
In the present embodiment, the concrete structure of first-stage worm gear worm screw elevating mechanism 200 and second-stage worm gear worm screw elevating mechanism 300
For：As shown in figure 5, first-stage worm gear worm screw elevating mechanism 200 further includes the first worm gear 220 and the first worm screw 230, level-one jacking is lived
Moved end is the first screw 210, and the first worm gear 220 is sheathed on the first screw 210 and is threadedly coupled with the first screw 210, the first snail
Bar 230 is engaged with the first worm gear 220, and top 100 is set to the top of the first screw 210；As shown in fig. 6, second-stage worm gear worm screw
Elevating mechanism 300 is further included including the second worm gear 320, the second worm screw 330 and the second screw 310, and two level jacking movable end is set
Flange nut 340 on the second screw 310, the second worm screw 330 engage with the second worm gear 320, and the second screw 310 is set to
Second worm gear, 320 center, first-stage worm gear worm screw elevating mechanism 200 are connect with flange nut 340.
First-stage worm gear worm screw elevating mechanism 200 and second-stage worm gear worm screw elevating mechanism 300 are realized in jacking work：
The rotation of first worm screw 230 drives the first worm gear 220 to rotate, and the rotation of the first worm gear 220 drives 210 elevating movement of the first screw, top
First 100 realize jacking when being moved upwards with the first screw 210；The rotation of second worm screw 330 drives the second worm gear 320 to rotate, and second
Screw 310 is rotated with the second worm gear 320, and flange nut 340 makees elevating movement on the second screw 310, so as to drive level-one snail
Worm and gear elevating mechanism 200 is whole to make elevating movement.
In the other embodiments of the utility model, first-stage worm gear worm screw elevating mechanism can be that non-screw is lived as lifting
Other worm gear structures of moved end, such as lifting movable end is the flange nut being set on rotary screw, top is arranged on
Make elevating movement on flange nut and realize jacking.Similarly, second-stage worm gear worm screw elevating mechanism can be to live using screw as lifting
The worm gear structure of moved end, first-stage worm gear worm screw elevating mechanism is connect with screw realizes the whole of first-stage worm gear worm screw elevating mechanism
Body lifts, or other worm gear structures, as long as corresponding lifting movable end and first-stage worm gear worm screw liter in the structure
The integral elevating of first-stage worm gear worm screw elevating mechanism is realized in descending mechanism connection.
The quantity of second-stage worm gear worm screw elevating mechanism 300 is three, and three second-stage worm gear worm screw elevating mechanisms 300 are in triangle
Shape arranges that first-stage worm gear worm screw elevating mechanism 200 is set in the space that three second-stage worm gear worm screw elevating mechanisms 300 enclose,
The flange nut 340 of three second-stage worm gear worm screw elevating mechanisms 300 is connect respectively with first-stage worm gear worm screw elevating mechanism 200.Knot
Using stable triangular layout on structure, center of gravity is low, makes multistage jack compact-sized but easy to maintain, easy to operate.Three
310 rotation direction of the second screw and velocity of rotation of second-stage worm gear worm screw elevating mechanism 300 should be consistent, to ensure first-stage worm gear snail
The equilibrium that bar elevating mechanism 200 lifts.
First-stage worm gear worm screw elevating mechanism 200 is set in movable platform 400, and movable platform 400 includes three linking arms
410, the flange nut 340 of three linking arms 410 and three second-stage worm gear worm screw elevating mechanisms 300 connects one to one, structure
It is compact, it is easy for installation.Second-stage worm gear worm screw elevating mechanism 300 is set on structure platform 500, and 500 bottom of structure platform is equipped with
Castor 520, easy to remove, 500 bottom of structure platform is equipped with support plate 510, is used to support structure platform 500, further carries
The stability of high structure.
Top 100 is connected with weighing sensor 600, and weighing sensor 600 is connected with insulation adapter 610, can be accurate
It obtains currently by the weight of jacking object.
First-stage worm gear worm screw elevating mechanism 200 be equipped with the first motor 810, the first motor 810 connect the first worm screw 230, two
Grade worm and gear elevating mechanism 300 is equipped with the second motor 820, and the second motor 820 connects the second worm screw 330, driven by motor
Worm screw saves manpower, improves working efficiency.First motor 810 is set in vertical state with the first screw 210, the second motor 820
It is set in vertical state with the second screw 310, saves space, make more compact structure, further reduce the height of jack.In order to
Convenient for controlling the working condition of jack, it is additionally provided with to control 810 start and stop of the first motor, rotating speed and direction of rotation and the second electricity
The control cabinet of 820 start and stop of machine, rotating speed and direction of rotation, control cabinet are electrically connected respectively with the first motor 810 and the second motor 820.
There are three types of operating critical states for multistage jack in the present embodiment, and minimum state respectively as shown in Figure 2 is (as schemed
Shown in 2), jacking highest state (as shown in Figure 4) and level-one jack state.When level-one jacks state, the first screw 210 is transported upwards
The dynamic stroke peak (as shown in Figure 3) that top 100 is made to reach level-one jacking state or flange nut 340 drive first-stage worm gear
Worm screw elevating mechanism 200 rises to 310 top (not shown) of the second screw.When jacking highest state, flange nut 340 drives one
Grade worm and gear elevating mechanism 200 rises to 310 top of the second screw, meanwhile, the first screw 210, which moves upwards, makes top 100
Reach the stroke peak of jacking highest state.
For example, if desired realizing top minimum altitude (top is from the ground) 1200mm, (top is liftoff for top maximum height
Face) 2000mm technical indicator, need to being equipped with the first-stage worm gear worm screw elevating mechanism 200 of a stroke 450mm, (thrust can reach
20T, trapezoidal screw Tr70) and the second-stage worm gear worm screw elevating mechanism 300 of three stroke 400mm (thrust can reach 10T, trapezoidal
Screw rod Tr60), first-stage worm gear worm screw elevating mechanism 200 is mounted in movable platform 400, and such combination, total kilometres reach
850mm, minimum altitude only have 1200mm, and maximum height can reach 2050mm, fully meet the height requirement for shoring aircraft.It needs
It is noted that the utility model multistage jack also adapts to the jacking work of miscellaneous equipment.
Embodiment 2
On the basis of embodiment 1, which further includes multiple for driving second-stage worm gear worm screw elevating mechanism
Make the additional worm gears worm screw elevating mechanism of integral elevating movement.Additional worm gears worm screw elevating mechanism can live using screw as lifting
The worm gear structure of moved end, second-stage worm gear worm screw elevating mechanism is connect with screw realizes the whole of second-stage worm gear worm screw elevating mechanism
Body lifts；Or worm gear structure of the flange nut as lifting movable end, second-stage worm gear worm screw elevating mechanism and method
The integral elevating of second-stage worm gear worm screw elevating mechanism is realized in blue nut connection；May be other worm gear structures, as long as should
Corresponding lifting movable end in structure is connect with second-stage worm gear worm screw elevating mechanism makes second-stage worm gear worm screw elevating mechanism overall liter
Drop.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of multistage jack, which is characterized in that including：Top, first-stage worm gear worm screw elevating mechanism and second-stage worm gear worm screw
Elevating mechanism, the first-stage worm gear worm screw elevating mechanism include level-one and jack movable end, the second-stage worm gear worm screw elevating mechanism
Jack movable end including two level, the top is set to level-one jacking movable end, the two level jacking movable end with it is described
First-stage worm gear worm screw elevating mechanism is connected so that the first-stage worm gear worm screw elevating mechanism can make integral elevating movement.
2. multistage jack as described in claim 1, which is characterized in that the first-stage worm gear worm screw elevating mechanism further includes
One worm gear and the first worm screw, the level-one jacking movable end is the first screw, and first worm gear set is set on first screw
And connect with first wire rod thread, first worm screw engages with first worm gear, and the top is set to described the
The top of one screw.
3. multistage jack as claimed in claim 2, which is characterized in that the second-stage worm gear worm screw elevating mechanism further includes packet
The second worm gear, the second worm screw and the second screw are included, the two level jacking movable end is the flange being sheathed on second screw
Nut, second worm screw engage with second worm gear, and second screw is set to the second worm gear center, and described one
Grade worm and gear elevating mechanism is connect with the flange nut.
4. multistage jack as claimed in claim 3, which is characterized in that the quantity of the second-stage worm gear worm screw elevating mechanism is
Three, three second-stage worm gear worm screw elevating mechanisms are triangularly arranged, and the first-stage worm gear worm screw elevating mechanism is set to
In the space that three second-stage worm gear worm screw elevating mechanisms enclose, the method for three second-stage worm gear worm screw elevating mechanisms
Blue nut is connect respectively with the first-stage worm gear worm screw elevating mechanism.
5. multistage jack as claimed in claim 4, which is characterized in that the first-stage worm gear worm screw elevating mechanism is set to work
On moving platform, the movable platform includes three linking arms, and three linking arms and three second-stage worm gear worm screws lift
The flange nut of mechanism connects one to one.
6. multistage jack as described in claim 1, which is characterized in that the second-stage worm gear worm screw elevating mechanism is set to knot
On structure platform, the structure platform is equipped with support plate and castor.
7. multistage jack as described in claim 1, which is characterized in that the top is connected with weighing sensor, the title
It retransmits sensor and is connected with insulation adapter.
8. the multistage jack as described in any one in claim 2 to 7, which is characterized in that the first-stage worm gear worm screw liter
Descending mechanism is equipped with the first motor, and first motor connects the first worm screw, and the second-stage worm gear worm screw elevating mechanism is equipped with second
Motor, second motor connect the second worm screw.
9. multistage jack as claimed in claim 8, which is characterized in that first motor and the first screw are in vertical state
Setting, second motor are set in vertical state with the second screw.
10. multistage jack as described in claim 1, which is characterized in that further include multiple for driving second-stage worm gear worm screw
Elevating mechanism makees the additional worm gears worm screw elevating mechanism of integral elevating movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721641533.3U CN207511751U (en) | 2017-11-30 | 2017-11-30 | A kind of multistage jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721641533.3U CN207511751U (en) | 2017-11-30 | 2017-11-30 | A kind of multistage jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207511751U true CN207511751U (en) | 2018-06-19 |
Family
ID=62542345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721641533.3U Active CN207511751U (en) | 2017-11-30 | 2017-11-30 | A kind of multistage jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207511751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107804797A (en) * | 2017-11-30 | 2018-03-16 | 成都成设航空科技股份公司 | A kind of multistage jack |
-
2017
- 2017-11-30 CN CN201721641533.3U patent/CN207511751U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107804797A (en) * | 2017-11-30 | 2018-03-16 | 成都成设航空科技股份公司 | A kind of multistage jack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207511751U (en) | A kind of multistage jack | |
| CN107804797A (en) | A kind of multistage jack | |
| CN105253786A (en) | Folding arm type lorry-mounted crane | |
| CN211841971U (en) | Overturn-preventing chassis | |
| CN208135840U (en) | A kind of power distribution line maintenance device | |
| CN111319589B (en) | Overturn-preventing chassis | |
| CN214298926U (en) | Indoor small-size portal frame hoist device with elevation structure | |
| CN207027839U (en) | A kind of material distributing machine distributor chute device | |
| CN217264311U (en) | Telescopic arm of gantry crane | |
| CN212811477U (en) | Flywheel energy storage device | |
| CN214653443U (en) | Operating platform for installation of fire-fighting engineering | |
| CN214790268U (en) | Supporting device | |
| CN212024676U (en) | Spliced bridge transportation lifting device | |
| CN211970589U (en) | Handling equipment of worm gear drive formula | |
| CN210825173U (en) | Construction lifting device for road and bridge | |
| CN110255439B (en) | Railway loading and unloading transfer device | |
| CN220141122U (en) | File rack for hospital logistics management | |
| CN216739299U (en) | Unloading device | |
| CN217600278U (en) | Double-stroke automatic lifting positioning mechanism | |
| CN220245369U (en) | Combined lifting device | |
| CN213651747U (en) | Stacking machine | |
| CN213679638U (en) | Trailer formula aerial working basket levelling device for platform | |
| CN220265203U (en) | Lifting equipment capable of conveniently adjusting high-altitude position | |
| CN210286612U (en) | Lifting platform driven by lead screw driven by air cylinder | |
| CN221027260U (en) | Crane lifting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |