Multistage lift flexible strutting arrangement
Technical Field
The invention belongs to the technical field of mechanical transmission, and particularly relates to a multi-stage lifting deformable supporting device.
Background
In the construction process of hydropower engineering, the installation of electrical equipment is one of very important construction projects, wherein, because cables are needed to be connected among all electrical systems to achieve the purpose of centralized control, the laying work of the cables is very critical. In the construction process, cables need to be laid according to the actual site, sometimes the cables need to be laid can enter a complex environment, and because the power cables cannot have serious wrinkles in the laying process, the supporting frame for cable take-up and pay-off lines is required to be adopted as auxiliary equipment to complete the cable take-up and pay-off work.
At present, most of situations adopt hoisting equipment to hoist cable reels, and the support frame for cable take-up and pay-off purchased on the market utilizes the jack to lift cable reels, then carries out cable paying-off work, and the pay-off rack of purchase utilizes the jack to jack-up cable reel axle, and cable reel weight is eight doors in the engineering, often needs purchase multiple model pay-off rack just can satisfy the cable laying needs, has the problem such as work complicacy, with high costs. In addition, because the job site receives place and equipment fixing restriction, cable reel weight is great usually, generally reaches several tons or even ten more tons, and at some construction sites that the environment is abominable, hoisting equipment can't use, causes very big hindrance to cable unwrapping wire work, leads to the construction progress slow, and the cost of labor increases, construction security low grade problem. Meanwhile, the cable models generally required by the same construction site are various, the cable reels need to be frequently replaced, the operation of the existing supporting equipment is complex, the efficiency is low, and the problems of slow construction progress, high construction cost and the like are caused.
Therefore, how to develop a support frame with high working efficiency and low construction cost becomes a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a multi-stage lifting deformable supporting device, which solves the problems of slow construction progress, high construction cost and the like caused by complex operation and low efficiency of the conventional supporting equipment when a cable is replaced.
In order to solve the problems, the technical scheme adopted by the invention is that the multi-stage lifting deformable supporting device comprises a reciprocating telescopic mechanism, a telescopic end of the reciprocating telescopic mechanism is connected with a lead screw, external threads are arranged outside the lead screw, a first supporting table is assembled on the lead screw in a threaded manner, two ends of the first supporting table are respectively hinged with a second supporting table, a plurality of jacks are respectively arranged on the surface of the first supporting table and the second supporting side table, and bolts are inserted into the jacks.
The technical proposal of the invention also has the following characteristics,
and the screw rod is further provided with a limiting nut in a threaded manner, and the limiting nut is positioned below the first supporting platform.
The reciprocating telescopic mechanism is arranged on the base.
The reciprocating telescopic mechanism is a hydraulic cylinder.
A plurality of jacks are arranged on the side of the first supporting platform.
The invention has the beneficial effects that: compared with the existing lifting frame, the multi-stage lifting deformable support device can be lifted to different degrees, the storage space between the first support table and the second support table can be enlarged through folding, the operation of operators is facilitated, and the multi-stage lifting deformable support device has a better field popularization and use prospect.
Drawings
Fig. 1 is a schematic structural view of a multi-stage lifting deformable supporting device of the invention.
In the figure: 1. the device comprises a reciprocating telescopic mechanism, 2 parts of a lead screw, 3 parts of a second supporting table, 4 parts of a first supporting table, 5 parts of a limiting nut and 6 parts of a base.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in fig. 1, the multi-stage lifting deformable supporting device comprises a reciprocating telescoping mechanism 1, wherein a screw rod 2 is connected to a telescoping end of the reciprocating telescoping mechanism 1, external threads are arranged outside the screw rod 2, a first supporting table 4 is assembled on the screw rod 2 in a threaded manner, two ends of the first supporting table 4 are respectively hinged to a second supporting table 3, a plurality of jacks are respectively arranged on the surface of the first supporting table 4 and on the side table of the second supporting table 3, and bolts are inserted into the jacks.
The lower extreme welding of lead screw 2 is served in the flexible of reciprocal telescopic machanism 1, and the screw thread is equipped with first supporting station 4 on the lead screw 2, and during height-adjusting, the accessible drives reciprocal telescopic machanism 1, makes its flexible end up-and-down motion adjust the height of lead screw 2, and then adjusts the height of first supporting station 4.
When the area of the first supporting platform 4 meets the requirement of the load-bearing object, the two second supporting platforms 3 can be respectively folded upwards along the outer edge of the first supporting platform 4, so that the second supporting platforms 3 are overlapped with the first supporting platform 4, and the load-bearing object can be placed on the second supporting platforms 3. Certainly also can upwards fold second brace table 3 along the outer edge of first brace table 4 and play 90, then insert the bolt in the jack that first brace table 4 surface and second brace table 3 lateral part distribute, make and accomplish 90 between first brace table 4 and the second brace table 3 and fix, can play certain stopper to the bearing thing, prevent that it from taking place the effect that drops.
When the area of the second supporting table 4 can not satisfy the space required by the bearing object, the two second supporting tables can be folded downwards along the outer edges of the first supporting table 4 respectively to make the first supporting table 4 and the second supporting table parallel and level, then the bolt is inserted into the jacks distributed on the side parts of the first supporting table 4 and the second supporting table 3, so that the fixation between the first supporting table 4 and the second supporting table 3 is completed, and the effect of enlarging the bearing area is achieved.
As shown in fig. 1, in the multi-stage lifting deformable supporting device of the present invention, the screw rod 2 is further threadedly assembled with a limit nut 5, and the limit nut 5 should be located below the first supporting table 4.
When can't satisfy the altitude mixture control through reciprocating drive mechanism 1, can upwards rotate first supporting bench 4 along lead screw 2, wait to reach required height and also upwards rotate limit nut 5 along lead screw 2 below lead screw 2 until limit nut 5 tightly pushes up in the below of first supporting bench 4, do so can prevent first supporting bench 4 because unexpected reverse rotation takes place, the altitude decline.
As shown in fig. 1, in a multi-stage liftable and lowerable support apparatus of the present invention, the reciprocating telescoping mechanism 1 is provided on a base 6.
As shown in fig. 1, in the multi-stage liftable and lowerable support apparatus of the present invention, the reciprocating telescoping mechanism 1 is a hydraulic cylinder.
As shown in fig. 1, in a multi-stage liftable and lowerable support apparatus of the present invention, a plurality of insertion holes are provided at a side portion of the first support table.
When the area of the second supporting table 4 can not satisfy the space required by the bearing object, the two second supporting tables can be folded downwards along the outer edges of the first supporting table 4 respectively to make the first supporting table 4 and the second supporting table parallel and level, then the bolt is inserted into the jacks distributed on the side parts of the first supporting table 4 and the second supporting table 3, so that the fixation between the first supporting table 4 and the second supporting table 3 is completed, and the effect of enlarging the bearing area is achieved.
In conclusion, compared with the existing lifting frame, the multi-stage lifting deformable support device can be lifted to different degrees, the storage space between the first support table and the second support table can be enlarged through folding, the operation of operators is facilitated, and the multi-stage lifting deformable support device has a better field popularization and use prospect.