CN2447520Y

CN2447520Y - Hydraulic stone expander

Info

Publication number: CN2447520Y
Application number: CN 00235091
Authority: CN
Inventors: 闻德生
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2000-05-18
Filing date: 2000-05-18
Publication date: 2001-09-12
Anticipated expiration: 2010-05-18

Abstract

The utility model relates to a hydraulic stone expanding machine, of which an expansion head 16 is composed of two semicylinder bodies with steps. A wedge block 15 is arranged inside the inclined plane of the inner surface. A piston rod 9 is connected with the wedge block 15 by screw threads or a T-shaped slot. A small-flow pump 23 of a high pressure and a large-flow pump 2 of a low pressure are driven simultaneously by a motor 22 of a hydraulic device to provide oil liquid of the high pressure for a hydraulic cylinder through a valve body and a pipeline. A quarrying machine has the advantages of energy saving, convenient operation, safety, etc., and can be widely popularized and applied in mining industry.

Description

Hydraumatic stone-swelling machine

The utility model belongs to hydraulic machine.

At present, in the quarrying industry, generally adopt technology quarrying stones such as explosive, expansion agent and laser cutting.These technology are very imperfect, and for example: use the explosive quarrying stone, stone varies in size, out-of-shape, and lumber recovery is low, produces dangerous; The quarrying of use expansion agent, duty cycle is long, and production efficiency is low; Use laser cutting, equipment investment is big, and the product cost height is difficult for popularizing.

Inventor of the present utility model once disclosed a kind of quarrying machinery--hydraulic pressure quarrying device (patent No.: 92206900X), this be one comparatively safe, efficient and save the quarrying machinery of resource, obtained promotion and application in the quarrying industry.But in using at the scene, still there is following deficiency in this hydraulic pressure quarrying device: the hair that expands is given birth to fracture; Output system wastes energy, and is not easy to operation again; Piston rod and voussoir are made the curved phenomenon of one generation bar; Bloated alliteration is split stone too small openings or the like sometimes.

The purpose of this utility model is to provide a kind of hydraulic pressure quarrying machinery of the industry that is used to quarry, and it saves the energy, easy to operate, safe and reliable, thereby has overcome above-mentioned the deficiencies in the prior art.

Hydraulic pressure quarrying machhine of the present utility model comprises a hydraulic cylinder, and a spalling mechanism and the hydraulic means that power is provided are set on the end cap at hydraulic cylinder two ends into and out of hydraulic fluid port; It is characterized in that: the head (16) that expands is made up of upper and lower two semicylinders with the level, and the inner surface of each semicylinder is the inclined-plane, and the external surface of the thick side of its step also can be made into half cone-shaped, and has spring groove at external surface, to place spring (13); External surface at described bloated head (16) also is provided with dust cover (12) and sheath (14), and sheath (14) is made up of two semicircular cylinders with the level, and the connection hinge is arranged in the middle of it; The eave tile part that the head (16) that expands is connected with hydraulic cylinder, its cross section is a circular arc, also can be rectangle, so not only be convenient to process, and it is concentrated to eliminate the stress of connection chute (17); Voussoir (15) is a truncated rectangular pyramids that has the inclined-plane, and rearward end is connected with piston rod (9) screw thread or T-shape groove; Described hydraulic means is divided into two parts: first is pump housing assembly (1), and wherein motor (22) drives high-pressure low-flow pump (23) and low pressure and mass flow pump (2) carries out work simultaneously; Second portion is valve body assembly (21), and it is by overflow valve (3), (4), (20), one way valve (5), (19), and unloader compositions such as (18); Reversal valve in the pipeline (6) is used for hydraumatic stone-swelling machine commutation and meta unloading, when reversal valve (7) is used for expanding head work more, some bloated heads is controlled, or used when keeping in repair, to cut a dead oil road; Pipeline breaking valve (8) plays the effect of blocking oil circuit automatically, and when a plurality of bloated heads were worked simultaneously, one of them bloated alliteration was opened stone material, release in the cylinder, and pipeline breaking valve (8) can block the oil circuit of this head that expands automatically, to guarantee all the other each stone expander operate as normal.

Drawings and Examples:

Accompanying drawing 1 hydraumatic stone-swelling machine schematic diagram

Accompanying drawing 1 is the disclosed embodiment of the utility model, during hydraumatic stone-swelling machine work, motor in the hydraulic means (22) driving high-pressure low-flow pump (23) and low pressure and mass flow pump (2) are simultaneously to the stone expander fuel feeding, during loading, low pressure and mass flow pump (2) unloading, high pressure rill pump (23) work, input highly pressurised liquid in the stone expander.Hydraulic cylinder promotes two bloated heads of semicircle (16) that have the inclined-plane by piston rod (9) and voussoir (15), the downward axially-movable of voussoir (15) is become the radial motion of head (16) to both sides of expanding, this radial load is exaggerated into tons up to a hundred, and any building stones are enough to ftracture.When the opening of the spalling first time is big inadequately, sheath (14) can be put into this hole, carry out the spalling second time again.

This utility model has saves the energy, the advantage such as easy to operate, safe and reliable, can In mining industry wide popularization and application.

Claims

1, a kind of hydraulic pressure quarrying machhine, comprise a hydraulic cylinder that has handle, a spalling mechanism and the hydraulic means that power is provided, described cylinder ends covers setting into and out of hydraulic fluid port, it is characterized in that: the head (16) that expands is made up of two semicylinders with the level, voussoir (15) is arranged in the inclined-plane of the inner surface of two semicylinders, and piston rod (9) is connected with screw thread or T-shape groove with voussoir (15); The motor of hydraulic means (22) drives high-pressure low-flow pump (23) and low pressure and mass flow pump (2) simultaneously, provides high-voltage oil liquid by valve body, pipeline to hydraulic cylinder.

2, hydraumatic stone-swelling machine according to claim 1 is characterized in that: the surface of head (16) first cylinder that expands has cannelure, and retracting spring (13) is set in the groove, and also is provided with dust cover (12) and sheath (14) in the head outside of expanding.

3, according to claim 1,2 described hydraumatic stone-swelling machines, it is characterized in that: collude slot part on hydraulic cylinder and the chute (17) that the head (16) that expands is connected, its cross section is a circular arc, also rectangle.

4, according to claim 1,2 described hydraumatic stone-swelling machines, it is characterized in that: sheath (14) is made up of two semicircular cylinders with the level, and their centre has hinge to connect.

5, hydraumatic stone-swelling machine according to claim 1 is characterized in that: voussoir (15) is a truncated rectangular pyramids that has the inclined-plane, is connected with piston rod by screw thread or T-shape groove.

6, hydraumatic stone-swelling machine according to claim 1 is characterized in that: the eave tile part that the head (16) that expands is connected with hydraulic cylinder, its cross sectional shape is a circular arc, also but rectangle.

7, hydraumatic stone-swelling machine according to claim 1 is characterized in that: the thick side external surface of head (16) its step that expands also can be made half cone-shaped.