CN2040895U

CN2040895U - Screw elevator

Info

Publication number: CN2040895U
Application number: CN 88213076
Authority: CN
Inventors: 林有
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-09-04
Filing date: 1988-09-04
Publication date: 1989-07-12

Abstract

The utility model relates to a new elevator. The usual elevator is made by adopting the principle of hanging and pulling the elevator body by steel cables. The elevator provided by the utility model is made by adopting creatively designed screw elevating principle. Compared with usual elevators, the safety of the elevator is increased and the carrying capacity is also increased. The utility model also has the advantage of obvious convenient operation.

Description

Screw elevator

The utility model relates to a kind of new-type elevator.

Common elevator, form by elevator envelope, balance block, electrical motor and the wirerope etc. that connects electrical motor and envelope, its lifting principle mainly is to utilize the power of electrical motor to hang to draw high by wirerope to fall the cage body, finish the lifting process of envelope, the elevator that utilizes this principle to make has a lot of shortcomings, for example, hang to draw high with wirerope and fall the cage body, the danger that has wirerope to be broken to cause the elevator envelope out of control; And for example, in the elevator use,, cause the elevator envelope to rise and can not descend when elevator walks to when having a power failure between two floors, extremely inconvenient; For another example, the load carrying ability of this class elevator is very limited, or the like.

The utility model is at above-mentioned shortcoming and innovative design, purpose provide a kind of brand new, safety, convenience, spiral lift that load carrying ability is big.

Accompanying drawing of the present utility model is the structural representation of spiral lift, and 1 is the elevator envelope among the figure, the 2nd, and the nut guide rail, the 3rd, screw rod pushing disc center shaft, the 4th, worm gear, the 5th, elevator envelope supporting plate, the 6th, supporting plate outer rim attaching parts, the 7th, screw rod advances the basin outside thread, and the 8th, emergent window, the 9th, envelope base plate, the 10th, worm screw, the 11st, bearing, the 12nd, screw rod pushing disc, the 13rd, bearing.

Below elevator structure of the present utility model is described in detail:

The elevator push structure of this machine is a helical structure, nut guide rail 2 is some negative thread fixed guides around screw rod pushing disc 12 peripheries, that is be, the nut of this helical structure is not to adopt the integral type nut, but be equivalent to nut is divided into many Nut columns in short transverse, the nut guide rail is wherein some, and the negative thread of these nut guide rails, neither adopt the negative thread of slip screw, neither adopt for example rolling screw negative thread of ball screw class, but designed the employing bearing as " negative thread ", make the outside thread of screw rod pushing disc become rolling to cooperate with bearing, mutual friction is significantly reduced, certainly, the limit that reduces be with screw rod pushing disc and nut guide rail can self-locking as precondition, worm gear 4 is equipped with in the end of the center shaft 3 of screw rod pushing disc, worm gear then cooperates with worm screw 10 and by the driven by motor worm and wormwheel, when motor rotates, pass through Worm and Worm Gear Driving, screw rod pushing disc center shaft rotates together with the screw rod pushing disc thereupon, so the screw rod pushing disc can be done the spiral lifting motion, bearing 11 is equipped with at middle part at screw rod pushing disc center shaft, this bearing is connected with elevator envelope supporting plate 5, the outer rim of supporting plate has some attaching partss 6 that match with the nut guide rail, make supporting plate do translation up and down along guide rail only, and supporting plate is connected with elevator envelope 1, therefore when the screw rod pushing disc was done the spiral lifting motion, the elevator envelope can be done the lifting translation thereupon.

Above-mentioned screw rod pushing disc adopts the single-head screw pushing disc, and parameters such as the diameter of screw rod pushing disc and spiral lead angle can be selected according to actual needs; Above-mentioned nut guide rail is generally considered to use 4 and is got final product, and the peripheral position that these 4 nut guide rails are preferably in the screw rod pushing disc becomes rectangular distribution, 4 distances between the guide rail is equated, so that the screw rod pushing disc can carry out the dipping and heaving of spiral shell family reposefully; Above-mentioned bearing 11 is owing to be to bear the axial load of car cab body weight mainly, the radial load that also need bear weight maldistribution in the elevator envelope for example simultaneously and produce etc., therefore bearing 11 preferably adopts the bearing with cross roller coro bearng, bearing 13 mainly is to bear radially load and entad load is less such as screw rod pushing disc, so bearing 13 preferably adopts radial roller bearing;

Consider that the elevator envelope might rest between two floors after having a power failure suddenly, for make envelope can be when having a power failure can be easily just lifting to a certain floor, can in the base plate 9 of elevator envelope, open an emergent window 8, rotate but drive worm and wormwheel, thereby can make envelope arrive preposition from emergent window translation.

Elevator of the present utility model owing to use the spiral lifting principle, is compared with common elevator, and the safety of this elevator increases greatly, and its charge capacity also increases greatly, and has advantages such as significantly easy to use.

Claims

1, a kind of elevator, it is characterized in that, the lifting push structure of this machine is a helical structure, nut guide rail 2 is the negative thread fixed guides around screw rod pushing disc 12 peripheries, this negative thread is to be made of bearing 13, and matches with the outside thread 7 of screw rod pushing disc, and worm gear 4 is equipped with in the end of the center shaft 3 of screw rod pushing disc, worm gear then cooperates with screw rod 10 and by the driven by motor worm and wormwheel, thus the spiral lifting motion of control screw rod pushing disc.Bearing 11 is equipped with at the middle part of the center shaft of screw rod pushing disc, and this bearing is connected with elevator envelope supporting plate 5.The outer rim of supporting plate has the attaching parts 6 that matches with the nut guide rail, makes supporting plate do translation up and down along guide rail only.Thereby the dipping and heaving of control and supporting plate bonded assembly elevator envelope 1.

2, elevator according to claim 1 is characterized in that said screw rod pushing disc is the single-head screw pushing disc.

3, elevator according to claim 1, the preferred quantity that it is characterized in that said nut guide rail is 4, these 4 nut guide rails become rectangular distribution at the peripheral position of screw rod pushing disc, and 4 distances between the guide rail are equated.

4, elevator according to claim 1 is characterized in that said bearing 11 is bearing with cross roller coro bearngs, and said bearing 13 is radial roller bearings.

5, elevator according to claim 1 is characterized in that having in the base plate 9 of said elevator envelope an emergent window 8, can manually control the rotation of worm and wormwheel from emergent window.