CN202176687U

CN202176687U - Multi-stage linkage driving telescopic push rod device

Info

Publication number: CN202176687U
Application number: CN2011202705723U
Authority: CN
Inventors: 田超; 王琴; 罗伟
Original assignee: CHENGDU HITOAL AUTOMATIC CONTROL TECHNOLOGY Co Ltd
Current assignee: CHENGDU HITOAL AUTOMATIC CONTROL TECHNOLOGY Co Ltd
Priority date: 2011-07-28
Filing date: 2011-07-28
Publication date: 2012-03-28
Anticipated expiration: 2021-07-28

Abstract

The utility model discloses a multi-stage linkage driving telescopic push rod device comprising a plurality of sleeves that are sequentially installed from the bottom up in the sequence of from big size to small size, wherein each sleeve is internally provided with a screw rod; the screw rod is sheathed with a rotating nut and sliding driven gears; the rotating nut and the sliding driven gears are connected through a flange; the sliding driven gears on two adjacent screw rods are meshed; and the sliding driven gears are driven by a motor. The multi-stage linkage driving telescopic push rod device is simple in structure, economical and practical.

Description

Multistage linking drives flexible push rod device

Technical field

The utility model relates to a kind of flexible push rod device, and particularly a kind of multistage linking drives flexible push rod device.

Background technique

Use the flexible push rod device of many multistage linkings to be of wide application at present, be mainly used in car antenna, naval vessel antenna, crane gear telescopic boom, fire-protection equipment expansion device, naval vessel vehicle equipment etc., applied range acts on very big.But because the Environmental Conditions and the condition of various device have nothing in common with each other, employed method is also different, mainly contains following several kinds of modes at present: " electronic ", " electric liquid ", " pneumatic " and " hydraulic pressure " etc.Electric pushrod is to utilize mechanical energy to change into reciprocating equipment, and its stroke is limited, and needs to use limit switch to control the Shen stop and the stop that contracts, with antioverloading; Electrohydraulic push rod and electric pushrod are similar, are the driven by motor oil pumps, use push rod to move reciprocatingly; Air-leg and hydraulic push rod they itself be drive mechanism not, needs to use air pump and oil pump, is connected with pipeline through valve, makes it to do reciprocal operation; Pneumatic bigger of the torque ratio of hydraulic push rod, but cost is higher relatively.

Summary of the invention

The purpose of the utility model just is to provide a kind of simple in structure, economical and practical multistage linking to drive flexible push rod device.

To achieve these goals, the technological scheme that the utility model adopts is such: the multistage linking of the utility model drives flexible push rod device, comprises several sleeve pipes; Several sleeve pipes are by from big to small order socket successively from the bottom up; All be provided with a screw mandrel in each sleeve pipe, be socketed with swivel nut and slip driven gear on the screw mandrel, swivel nut is connected through a flange with the slip driven gear; Slip driven gear engagement on adjacent two screw mandrels, said slip driven gear passes through motor driving.

As preferably, screw mandrel bottom bottom is provided with belt pulley, belt pulley through belt by motor driving.

Compared with prior art, the advantage of the utility model is: this device comprises sleeve pipe, screw mandrel, swivel nut, slip driven gear and flange, and simple in structure, cost is lower, and is economical and practical, and is easy to use by motor driving, but to-and-fro motion, and can not transship.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the sectional view of Fig. 1;

Fig. 3 is swivel nut, flange, slip driven gear decomposing schematic representation.

Embodiment

To combine accompanying drawing that the utility model is described further below.

Referring to Fig. 1 to Fig. 3, the multistage linking of the utility model drives flexible push rod device, comprises several sleeve pipes 1; Several sleeve pipes 1 are by from big to small order socket successively from the bottom up; All be provided with a screw mandrel 2 in each sleeve pipe 1, be socketed with swivel nut 3 and slip driven gear 4 on the screw mandrel 2, swivel nut 3 is connected through a flange 5 with slip driven gear 4; Slip driven gear 4 engagements on adjacent two screw mandrels 2; Said slip driven gear 4 drives through motor 6, and screw mandrel 2 bottoms bottom are provided with belt pulley 7, and belt pulley 7 is driven by motor 6 through belt 8.

Motor 6 rotates through belt 8 drive pulleys 7, and belt pulley 7 drives screw mandrel 2 rotations, during 2 rotations of first order screw mandrel 2 slip driven gears 4 wire winding rods; Can drive slip driven gear 4 rotations on the second level screw mandrel 2; Thereby drive second level screw mandrel 2, by that analogy, drive the third level; The fourth stage, level V.

Claims

1. a multistage linking drives flexible push rod device; Comprise several sleeve pipes, several sleeve pipes is characterized in that: all be provided with a screw mandrel in each sleeve pipe by from big to small order socket successively from the bottom up; Be socketed with swivel nut and slip driven gear on the screw mandrel; Swivel nut is connected through a flange with the slip driven gear, the slip driven gear engagement on adjacent two screw mandrels, and said slip driven gear passes through motor driving.

2. multistage linking according to claim 1 drives flexible push rod device, it is characterized in that: screw mandrel bottom bottom is provided with belt pulley, and belt pulley passes through belt by motor driving.