CN102009412A

CN102009412A - Three-claw grip device

Info

Publication number: CN102009412A
Application number: CN 201010540856
Authority: CN
Inventors: 卢晓龙; 姬广世; 高德宝; 王所栋; 李旺; 刘全城; 杨永全; 高贵发; 战祥学
Original assignee: 卢晓龙
Priority date: 2010-11-11
Filing date: 2010-11-11
Publication date: 2011-04-13

Abstract

The invention discloses a three-claw grip device, which belongs to the field of manipulators. The three-claw grip device comprises a shell and three claws, and is characterized in that: the shell is a hollow columnar body; three U-shaped lugs are uniformly distributed on the outer side of the columnar body; the three claws are arranged in the U-shaped lugs through pins respectively; each claw is provided with a short arm and a long arm by taking each pin as a rotating shaft; the long arm bends towards the axis of the columnar body; three radial through holes corresponding to each short arm are formed on the columnar body; a radial push rod is arranged in each radial through hole; the outer end of the radial push rod is pressed against each short arm, and the inner end of the radial push rod is pressed against a conical rod which is positioned in the center of the columnar body; the conical rod has a large-diameter upper end and a small-diameter lower end; and a tension spring is arranged between the short arm and the columnar body. The device has the advantage of conveniently gripping a circular object.

Description

A kind of three-jaw gripper equipment

Technical field

The present invention establishes and a kind of three-jaw gripper equipment, is exactly a kind of handgrip that grasps spherical body specifically.

Background technology

Handgrip in the market mainly is to grasp column, because the object of orbicule and other shape has very big difference, thereby it is obviously not all right to grasp orbicule with existing handgrip.

Summary of the invention

At the problem that existing technology exists, the invention provides a kind of three-jaw gripper equipment of extracting spherical body rational in infrastructure, easy to use, low-cost.

The present invention is achieved by the following technical solutions:

A kind of three-jaw gripper equipment, comprise housing and three pawls, it is characterized in that, described housing is the cylinder of hollow, at uniform three the U-shaped ears in the described cylinder outside, three pawls place respectively in the described U-shaped ear by pin, described pawl is that rotating shaft is provided with galianconism and has long-armed to the bending of cylinder direction of axis line with the pin, on described cylinder, be provided with three radial direction through hole of corresponding each galianconism, be provided with radial push rod in each radial direction through hole, described radial push rod outer end each galianconism of conflicting, the inner conflict is positioned at the taper barred body at cylinder center, described taper barred body upper end diameter is big, and lower end diameter is little; Between galianconism and cylinder, be provided with extension spring.

When the taper barred body above the cylinder promotion housing, three radial push rods can outwards move, and the galianconism that promotes three handgrips outwards opens, and handgrip can rotate along with pin, thereby long-armed will closing up picked up object.Reach the purpose of grabbing thing.Otherwise when cylinder returned, galianconism resetted under the effect of drawing Huang, thereby long-armed will outwards opening put down object.

Effective benefit of the present invention is for grasping circular object easily.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Among the figure: 1 cylinder, 2 pawls, 21 galianconism, 22 is long-armed, 3 U-shaped ears, 4 taper barred bodies, 5 pins, 6 radial push rods, 7 extension springs.

The specific embodiment

As shown in Figure 1, a kind of three-jaw gripper equipment, comprise housing and three pawls, described housing is the cylinder 1 of hollow, at uniform three the U-shaped ears 3 in described cylinder 1 outside, three pawls 2 place respectively in the described U-shaped ear 3 by pin 5, described pawl 2 is that rotating shaft is provided with galianconism 21 and has to long-armed 22 of cylinder direction of axis line bending with pin 5, on described cylinder, be provided with three radial direction through hole of corresponding each galianconism, be provided with the radial push rod 6 that can move radially in each radial direction through hole, described radial push rod outer end each galianconism of conflicting, the inner conflict is positioned at the taper barred body 4 at cylinder center, described taper barred body upper end diameter is big, and lower end diameter is little; Between galianconism and cylinder, be provided with extension spring 7, be beneficial to pawl and reset.

Claims

1. three-jaw gripper equipment, comprise housing and three pawls, it is characterized in that, described housing is the cylinder of hollow, at uniform three the U-shaped ears in the described cylinder outside, three pawls place respectively in the described U-shaped ear by pin, described pawl is that rotating shaft is provided with galianconism and has long-armed to the bending of cylinder direction of axis line with the pin, on described cylinder, be provided with three radial direction through hole of corresponding each galianconism, be provided with radial push rod in each radial direction through hole, described radial push rod outer end each galianconism of conflicting, the inner conflict is positioned at the taper barred body at cylinder center, described taper barred body upper end diameter is big, and lower end diameter is little; Between galianconism and cylinder, be provided with extension spring.