CN102009922A

CN102009922A - Multi-section spiral lifting mechanism

Info

Publication number: CN102009922A
Application number: CN 201010191358
Authority: CN
Inventors: 张勋; 熊磊; 严浙平; 边信黔; 张伟; 徐健
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2010-06-04
Filing date: 2010-06-04
Publication date: 2011-04-13

Abstract

The invention aims to provide a multi-section spiral lifting mechanism comprising a base, a motor, a transmission mechanism, a pipe sleeve, a screw, a connecting pan. The pipe sleeve comprises a driving pipe sleeve and a lead screw pipe sleeve mechanism, the motor, the transmission mechanism and the driving pipe sleeve are all mounted on the base, the motor is connected with the transmission mechanism which is connected with the driving pipe sleeve, the lead screw pipe sleeve mechanism is mounted on the driving pipe sleeve, the screw is mounted on the lead screw pipe sleeve mechanism, and the connecting pan is fixed at the top end of the screw. The invention greatly improves the lifting height of a rod, can continuously adjust the height, lower the processing accuracy in comparison with similar products, has stable lifting, high speed, good strength and roughness, greater bearing capability and simple structure, is convenient for erection, operation and maintenance.

Description

More piece screw elevator structure

Technical field

What the present invention relates to is a kind of physical construction with elevating function.

Background technology

Lifting mechanism with certain weight lifting ability can be used for setting up fast lifting loads such as communication antenna, lamps and lanterns.In the prior art, useful pneumatic and hydraulic pressure carries out the lifting mechanism of telescopic lifting.This lifting mechanism complex structure, product component requirement on machining accuracy height is so productive costs is than higher.Existing lifting mechanism rising or falling speed is slow, and rigidity is relatively poor, and load-carrying capacity is little, set up and remove receive slow, particularly pneumatic and hydraulic lifting arm, because of often leaking gas, leakage makes the maintaining difficulty.

Summary of the invention

The object of the present invention is to provide a kind of simple in structure, more piece screw elevator structure that productive costs is lower.

The object of the present invention is achieved like this:

More piece screw elevator structure of the present invention, comprise base, motor, transmission device, pipe box, screw rod, terminal pad, it is characterized in that: pipe box comprises driving pipe box and leading screw pipe box mechanism, motor, transmission device and driving pipe box are installed on the base, motor links to each other with transmission device, and transmission device links to each other with the driving pipe box, and leading screw pipe box mechanism is installed in driving tube and puts, screw rod is installed in the leading screw pipe box mechanism, the top captive joint dish of screw rod.

More piece screw elevator structure of the present invention can also comprise:

1, described leading screw pipe box mechanism is made up of two or more leading screw pipe boxes.

2, described base is that a left-right symmetric is installed positioning plate with the axis of screw rod, and the upper end of positioning plate links to each other with terminal pad.

Advantage of the present invention is: improved the rising height of the body of rod greatly, can regulate height continuously, reduced working accuracy than like product, and lifting is steady, speed is fast, strength and stiffness are good, and load-carrying capacity is bigger, and is simple in structure, set up conveniently operation and easy to maintenance.

Description of drawings

Fig. 1 is the scheme drawing of the present invention's four joint screw elevator structures;

Fig. 2 is the basic view of the present invention's four joint screw elevator structures, and Fig. 2 a is a front view, and Fig. 2 b is a birds-eye view, and Fig. 2 c is a right elevation;

Fig. 3 lifting bar body mechanism of the present invention is by terminal pad and the affixed basic view of lead stop gear, and Fig. 3 a is a front view, and Fig. 3 b is a birds-eye view, and Fig. 3 c is a right elevation;

Fig. 4 is the basic view of terminal pad, and Fig. 4 a is a front view, and Fig. 4 b is a birds-eye view, and Fig. 4 c is a right elevation;

Fig. 5 is the basic view that drives pipe box, and Fig. 5 a is a front view, and Fig. 5 b is a birds-eye view;

Fig. 6 is the basic view of guide and limit plate 1, and Fig. 6 a is a front view, and Fig. 6 b is a birds-eye view, and Fig. 6 c is a right elevation;

Fig. 7 is the basic view of guide and

limit plate

2 and 3, and Fig. 7 a is a front view, and Fig. 7 b is a birds-eye view, and Fig. 7 c is a right elevation;

Fig. 8 is the basic view of guide and limit plate 4, and Fig. 8 a is a front view, and Fig. 8 b is a birds-eye view, and Fig. 8 c is a right elevation.

The specific embodiment

For example the present invention is done description in more detail below in conjunction with accompanying drawing:

Embodiment one

In conjunction with Fig. 1～8, more piece screw elevator structure has base 1, motor 2, transmission device 3, liftable body of rod mechanism that the nestable from big to small driving pipe box 4 together of the diameter of axis on same straight line is arranged, and leading screw pipe box mechanism and screw rod 7 are formed.Leading screw pipe box mechanism comprises leading screw pipe box 5 and leading screw pipe box 6, and the upper end mouth of pipe that drives pipe box 4 has negative thread, and it is affixed by bolt and transmission device 3 to drive pipe box 4.On the screw rod 7 outside thread is arranged, and screw rod 7 tops are affixed by terminal pad 8 and guide and limit plate 9.Screw rod 7 tops are affixed by flange and antenna 13.Guide and limit mechanism can guarantee screw rod in the axial direction lifting, and cannot rotate.The upper end mouth of pipe of leading screw pipe box 5 and leading screw pipe box 6 has negative thread, and leading screw pipe box 5 and leading screw pipe box 6 have outside thread.The negative thread of the upper end mouth of pipe of leading screw pipe box 5 is spun on the outside thread of leading screw pipe box 6.The negative thread that drives the upper end mouth of pipe of pipe box 4 is spun on the outside thread of the leading screw pipe box 5 adjacent with it.The external thread rotary of screw rod 7 is on the negative thread of the upper end mouth of pipe of the leading screw pipe box 6 adjacent with it.

Guide and limit mechanism is made up of eight guide and limit plates, and four is one group, and two groups of axis with screw rod 7 are a left-right symmetric, is guide and limit plate 9, guide and limit plate 10, guide and limit plate 11 and guide and limit plate 12 successively.The outer upper end of guide and limit plate 9 is affixed by bolt and terminal pad 8, and then affixed with screw rod 7, can guarantee screw rod 7 lifting in axial direction, and not rotate; Stud with the dovetail form feather key in the middle of the lower end, the outside of guide and limit plate 9, can pass the guide chute of guide and limit plate 10 inboards; Both sides, lower end, guide and limit plate 9 outside are affixed by bolt and drift angle steel positive stop key, are complementary with the limit sliding chutes of guide and limit plate 10 inboards.Stud with the dovetail form feather key in the middle of the lower end, the outside of guide and limit plate 10, the guide chute middle with the inboard of guide and limit plate 11 is complementary; The both sides, lower end, the outside of guide and limit plate 10 are affixed by bolt and drift angle steel positive stop key, and the limit sliding chutes of the both sides of the inboard of drift angle steel positive stop key and guide and limit plate 11 is complementary.The inboard middle of guide and limit plate 12 has guide chute, guide chute can allow the dovetail form feather key of guide and limit plate 11 pass; There is limit sliding chutes the inboard both sides of guide and limit plate 12, and the drift angle steel positive stop key of limit sliding chutes and guide and limit plate 11 is complementary; The lower end of guide and limit plate 12 is affixed by bolt and base 1.

Motor 2, transmission device 3, liftable body of rod mechanism and guide and limit mechanism all install on base 1.

Motor 2 is affixed by bolt and transmission device 3; Transmission device 3 is made up of axle and gear, and is between axle and the axle, affixed by bolt and semi-round key respectively between axle and the gear.

Motor 2 is the propulsion source of entire mechanism, is again electric-control system, by using potentiometer, travel switch, the adjustable height of control such as the coder body of rod.

During use, at first starter motor just changes it, can make by transmission device 3 to drive pipe box 4 rotations, and under the restriction of guide and limit mechanism, leading screw pipe box 5, leading screw pipe box 6 and screw rod 7 stretch out, and are raised to predetermined altitude.When the body of rod is regained, electrical motor counter-rotating, leading screw pipe box 5, leading screw pipe box 6 and screw rod 7 indentations.

Embodiment two

On the basis of embodiment one, leading screw pipe box mechanism comprises three leading screw pipe boxes, increases by two guide and limit plates simultaneously, and its mounting means is identical with embodiment one.

Embodiment three

On the basis of embodiment two, the leading screw pipe box comprises four leading screw pipe boxes, increases by two guide and limit plates more simultaneously, and its mounting means is identical with embodiment two with embodiment one.

Claims

1. more piece screw elevator structure, comprise base, motor, transmission device, pipe box, screw rod, terminal pad, it is characterized in that: pipe box comprises driving pipe box and leading screw pipe box mechanism, motor, transmission device and driving pipe box are installed on the base, motor links to each other with transmission device, and transmission device links to each other with the driving pipe box, and leading screw pipe box mechanism is installed in driving tube and puts, screw rod is installed in the leading screw pipe box mechanism, the top captive joint dish of screw rod.

2. more piece screw elevator structure according to claim 1 is characterized in that: described leading screw pipe box mechanism is made up of two or more leading screw pipe boxes.

3. more piece screw elevator structure according to claim 1 and 2 is characterized in that: described base is that a left-right symmetric is installed positioning plate with the axis of screw rod, and the upper end of positioning plate links to each other with terminal pad.