CN203463042U

CN203463042U - Hydraulic chuck clamping device

Info

Publication number: CN203463042U
Application number: CN201320522425.XU
Authority: CN
Inventors: 刘永中
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-26
Filing date: 2013-08-26
Publication date: 2014-03-05
Anticipated expiration: 2023-08-26

Abstract

The utility model provides a hydraulic chuck clamping device, relating to the technical field of a hydraulic chuck. The hydraulic chuck clamping device is characterized in that an end cover I and an end cover II are respectively installed on two ends of an external sleeve; a pull transmission disk is installed on the outer side of the end cover I; the inner side of the end cover II is fixed with a twisting transmission disk through a pin shaft; holes I are formed in the external sleeve; a supporting ring is arranged in the external sleeve; holes II are formed in the supporting ring; a rubber sleeve is arranged in the supporting ring; a plurality of slips are arranged in the rubber sleeve; springs are uniformly installed on the slips; protective plates are respectively installed on the outer sides, corresponding to the springs, of the slips. The hydraulic chuck clamping device can clamp a drill stem to rotate freely; the periphery is clamped tightly to be stressed simultaneously; the clamping force is uniform and can be adjusted at any time in a way of adjusting oil pressure; the use is convenient and the structure is simple; by the adoption of a normally open hydraulic available for hydraulic clamping and spring loosening, the device has the characteristics of automatic centering, safety, reliability, great clamping force and the like; the device not only can guarantee normal drilling, but also can be used for the lifting of a drilling tool, strong pulling and the like.

Description

Oild chuck clamping device

Technical field

The utility model relates to oild chuck technical field, is specifically related to a kind of oild chuck clamping device.

Background technology

Its complex structure of existing oild chuck, and there is oil pipe in outside, difficulty during holding drill pipe, and can not rotate freely, and can not regulate at any time clamping force, inconvenient during use.

Summary of the invention

The purpose of this utility model is to provide a kind of oild chuck clamping device, and it can rotate freely by holding drill pipe, and hydraulic clamp surrounding is simultaneously stressed, and clamping force evenly and available adjustment oil pressure, regulates clamping force at any time, easy to use, simple in structure.

In order to solve the existing problem of background technology, the utility model is to adopt following technical scheme: it comprises biography pulling plate 1, end cap 1, overcoat 3, support ring 4, rubber sleeve 5, torque-transmission disk 6, slips 7, spring 8, end cap 29, guard shield 10, the two ends of overcoat 3 are separately installed with end cap 1, end cap 29, the outside of end cap 1 is provided with and passes pulling plate 1, the inner side of end cap 29 is fixing by bearing pin and torque-transmission disk 6, on overcoat 3, arrange porose 1, the inside of overcoat 3 is provided with support ring 4, on support ring 4, arrange porose 2 41, in support ring 4, be provided with rubber sleeve 5, in rubber sleeve 5, be provided with several slips 7, spring 8 is installed on slips 7 uniformly, the outside of slips 7 and guard shield 10 is installed with spring 8 corresponding sections.

In the utility model, pass pulling plate 1: passing pulling plate and be connected with main shaft, is the connector of transmitting torque; Slips 7: for holding drill pipe; Torque-transmission disk 6: for stationary slip and limit its movement locus; Bearing pin: torque-transmission disk 6 and front and rear cover are fixed as one, can carry larger moment of torsion; Rubber sleeve 5: clamping slips use under the effect of hydraulic oil, is the critical component that hydraulic energy converts mechanical energy to; Guard shield 10: avoid hydraulic oil that rubber sleeve is pressed in slips gap, rubber sleeve is caused to damage; Support ring 4: for compressing the two ends (guaranteeing that hydraulic oil is non-leakage) of rubber sleeve.

The utlity model has following beneficial effect: chuck outside is without oil pipe, so can rotate freely by holding drill pipe; Hydraulic clamp surrounding is simultaneously stressed, and clamping force evenly and available adjustment oil pressure, regulates clamping force at any time; There is the spring structure pressure oil that can automatically reset by Yi, hole, hole two, acting on rubber sleeve through main shaft.

Accompanying drawing explanation:

Fig. 1 is longitudinal cross-section of the present utility model structural representation;

Fig. 2 is the structural representation of the lateral cross section of Fig. 1.

The specific embodiment:

Referring to Fig. 1-Fig. 2, this specific embodiment adopts following technical scheme: it comprises biography pulling plate 1, end cap 1, overcoat 3, support ring 4, rubber sleeve 5, torque-transmission disk 6, slips 7, spring 8, end cap 29, guard shield 10, the two ends of overcoat 3 are separately installed with end cap 1, end cap 29, the outside of end cap 1 is provided with and passes pulling plate 1, the inner side of end cap 29 is fixing by bearing pin and torque-transmission disk 6, on overcoat 3, arrange porose 1, the inside of overcoat 3 is provided with support ring 4, on support ring 4, arrange porose 2 41, in support ring 4, be provided with rubber sleeve 5, in rubber sleeve 5, be provided with several slips 7, spring 8 is installed on slips 7 uniformly, the outside of slips 7 and guard shield 10 is installed with spring 8 corresponding sections.

This specific embodiment adopts hydraulic clamp, spring to unclamp structure open in usual, there is automatic centering, the features such as safe and reliable, clamping force is large, it not only can guarantee normally to creep into, can also be used to lifting drilling tool, powerful rising pulled out etc. (drilling rod of chuck adapted different size, while changing slips, with special tool, the spring-compressed of slips group is put into packing element).

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. oild chuck clamping device, it is characterized in that it comprises biography pulling plate (1), end cap one (2), overcoat (3), support ring (4), rubber sleeve (5), torque-transmission disk (6), slips (7), spring (8), end cap two (9), guard shield (10), the two ends of overcoat (3) are separately installed with end cap one (2), end cap two (9), the outside of end cap one (2) is provided with and passes pulling plate (1), the inner side of end cap two (9) is fixing by bearing pin and torque-transmission disk (6), on overcoat (3), arrange porose one (31), the inside of overcoat (3) is provided with support ring (4), on support ring (4), arrange porose two (41), in support ring (4), be provided with rubber sleeve (5), in rubber sleeve (5), be provided with several slips (7), spring (8) is installed on slips (7) uniformly, the outside of slips (7) and guard shield (10) is installed with spring (8) corresponding section.