CN202876873U

CN202876873U - Hydraulic over-pressure protection device for conical crushing machine

Info

Publication number: CN202876873U
Application number: CN 201220488415
Authority: CN
Inventors: 李峰; 王建华; 许国清; 汤阳波
Original assignee: SHANGHAI DONGLONG HEAVY MACHINERY CO Ltd
Current assignee: SHANGHAI DONGLONG HEAVY MACHINERY CO Ltd
Priority date: 2012-09-24
Filing date: 2012-09-24
Publication date: 2013-04-17
Anticipated expiration: 2022-09-24

Abstract

The utility model discloses a hydraulic over-pressure protection device for a conical crushing machine. A hydraulic over-pressure protection seat (14) is connected between the upper part of a stander (3) with a material feeding hopper (1) and the middle-lower part of the stander fixed with the upper end of an eccentric sleeve (10) along the circumference direction of the horizontal plane and is connected with a hydraulic pipeline (9). A hydraulic over-pressure protector is arranged on the crushing machine, so that the hydraulic over-pressure protection device is simple in structure and convenient to operate; the prior art is convenient to improve; the conventional spring device is replaced; the halt time is greatly reduced; start-off parameters can be set; precise control is realized; automatic recovery is achieved; labor intensity is greatly reduced; and the crushing machine applying the hydraulic over-pressure protection device is high in structural adaptability and is relatively long in service life.

Description

Gyratory crusher fluid pressure type over-pressure safety device

Technical field

The utility model relates to disintegrating machine security of operation maintenance technology, especially gyratory crusher fluid pressure type over-pressure safety device.

Background technology

In the prior art, along with the development of mine technology, impact crusher, gyratory crusher application development are rapid, and gyratory crusher is to be applicable to the hard rock of fine crushing and super fine crushing, ore, slag, refractory material etc.

The brief introduction of gyratory crusher structure and major parameter: it is that fixed cone, lower crushing wall are that several parts such as mantle, fluid-flywheel clutch, lubricating system, hydraulic system, control system form that its structure of gyratory crusher mainly contains frame, trunnion axis, movable cone, stabilizer, eccentric bushing, upper crushing wall.Gyratory crusher has adopted hydraulic pressure or air pressure, adjusting gape device, hydraulic pressure overload protective device and hydraulic locking apparatus on the basis that keeps the gentle conical surface of original spring overload protection arrangement.

Meanwhile, suddenly bore gyratory crusher in the situation that keeps original very steep mantle face, also adopt hydraulic technique, by the difference of its hydraulic pressure set-up site, can be divided into again bottom hydraulic pressure brace type or the hanging gyratory crusher of top hydraulic crane.Simultaneously, impact crusher is that material obtains huge momentum at the utmost point in the short time, impacts counterattack or mutually collision, has made along the fragile department of natural crack, bed plane and joint plane and has broken.So far, disintegrating machine recovers normal operating conditions, therefore, is provided with targetedly overload protection measure more.

Existing crusher, overvoltage protection adopt spring as critical component, are by using to spring one pressure; if surpass this pressure, spring will play protection, must reinstall spring; change once almost about one day, labour intensity is too large, also has the pressure to spring to quantize.

Summary of the invention

Goal of the invention of the present utility model is to provide a kind of gyratory crusher fluid pressure type over-pressure safety device, and this device adopts the hydraulic structure parts to carry out overload protection, reaches the effect of accurate control, and cutting apparatus can recover voluntarily.

Realize that goal of the invention measure of the present utility model is: the upper rack that feed hopper is installed; and be fixed with below the central rack of eccentric bushing upper end between the part; along connecting hydraulic pressure overvoltage protection seat in the horizontal plane distribution, this hydraulic overpressure protecting seat is connected with hydraulic line.

The utility model has the advantage of; by install the hydraulic overpressure protector additional at disintegrating machine; simple in structure, easy to operate, be convenient to prior art is improved, replace original spring assembly, greatly reduced downtime; can set the parameter of setting out; reach accurate control, can automatically recover, greatly reduce labour intensity; crusher structure applicability after the application is strong, and service life is longer.

Description of drawings

Fig. 1 is the utility model structural representation

Reference numeral comprises:

Feed hopper 1, charging aperture 2, frame 3, oscillating deck 4, burden-guiding cone 5, hitch bar 6, active conical gear 7, power transmission shaft 8, hydraulic line 9, eccentric bushing 10, discharge port 11, by mantle fluted disc 12, crusher chamber 13, hydraulic overpressure protecting seat 14.

The specific embodiment

Below in conjunction with the embodiment explanation.

As shown in Figure 1, frame 3 tops of feed hopper 1 are installed, and are fixed with below the central rack of eccentric bushing 10 upper ends between the part, along connecting hydraulic pressure overvoltage protection seat 14 in the horizontal plane distribution, this hydraulic overpressure protecting seat 14 is connected with hydraulic line 9.

Frame 3 tops are installed into hopper 1, charging aperture 2 is arranged at feed hopper 1 interior bottom, simultaneously, frame 3 internal vertical setting-up eccentricities cover 10, charging aperture 2 and fixed installation umbrella burden-guiding cone 5 are stretched out in these eccentric bushing 10 upper ends, frame 3 inner with 10 of eccentric bushings around crusher chamber 13, these crusher chamber 13 walls of corresponding burden-guiding cone 5 upsides centripetal be shrunk to annular in frustum, be down funnel-form at crusher chamber 13 segment spaces between scalene cone at the bottom of burden-guiding cone 5 and this annular table, crusher chamber 13 bottoms connect discharge port 11.

Burden-guiding cone 5 upper sides are installed oscillating deck 4, simultaneously, in the coaxial installation in eccentric bushing 10 middle parts by mantle fluted disc 12, the power transmission shaft 8 inner initiatively conical gears 7 of installing that level is installed, this initiatively conical gear 7 with by 12 engagements of mantle fluted disc, power transmission shaft 8 is mutually vertical with eccentric bushing 10 axis, and power transmission shaft 8 outer ends connect hitch bar 6.

In the utility model machine when work,, motor is by hitch bar 6 connection for transmission axles 8, power transmission shaft 8 by conical gear 7 initiatively, driven eccentric bushings 10 by mantle fluted disc 12 and rotate, and so that oscillating deck 4 with crusher chamber 13 interior generation impact grinding effects and broken material.

Eccentric bushing 10 transmits crushing force through oscillating deck 4 because disintegrating machine power transmission shaft 8 axis are motionless, so this structure can be born larger crushing force, in small, broken bits and super fine crushing is adapted to very much, because the crushing force of super fine crushing is very large.Prior being; when the crusher chamber 13 interior excessive structural member pressure of load that occur increase severely; and mechanism's rotary resistance increases suddenly and when occurring slowing down; the 14 automatic triggering work of hydraulic overpressure protecting seat; the tolerance of frame lifting is provided; discharge and increase crusher chamber 13 inner spaces, avoid equipment the stuck fault of infringement parts that waits to occur and occur.

The utility model has reduced downtime greatly owing to there is the hydraulic overpressure protection to replace original spring assembly as safeties, can set the parameter of setting out; reach accurate control, can automatically recover, greatly reduce labour intensity; crusher structure applicability after the application is strong, and service life is longer.

Claims

1. gyratory crusher fluid pressure type over-pressure safety device; it is characterized in that: frame (3) top that feed hopper (1) is installed; and between the following part of the central rack that is fixed with eccentric bushing (10) upper end; along connecting hydraulic pressure overvoltage protection seat (14) in the horizontal plane distribution, this hydraulic overpressure protecting seat (14) is connected with hydraulic line (9).

2. gyratory crusher fluid pressure type over-pressure safety device as claimed in claim 1; it is characterized in that; frame (3) top is installed into hopper (1); charging aperture (2) is arranged at the interior bottom of feed hopper (1); simultaneously; frame (3) internal vertical setting-up eccentricity cover (10); charging aperture (2) and fixed installation umbrella burden-guiding cone (5) are stretched out in this eccentric bushing (10) upper end; in frame (3) between inner and eccentric bushing (10) around crusher chamber (13); this crusher chamber (13) wall of corresponding burden-guiding cone (5) upside centripetal be shrunk to the annular in frustum; be down funnel-form at crusher chamber (13) segment space between scalene cone at the bottom of burden-guiding cone (5) and this annular table, crusher chamber (13) bottom connects discharge port (11).

3. gyratory crusher fluid pressure type over-pressure safety device as claimed in claim 1; it is characterized in that; burden-guiding cone (5) upper side is installed oscillating deck (4); simultaneously; coaxial installation is by mantle fluted disc (12) in the middle part of eccentric bushing (10); the inner initiatively conical gear (7) of installing of the power transmission shaft (8) that level is installed; this initiatively conical gear (7) with meshed by mantle fluted disc (12); power transmission shaft (8) is mutually vertical with eccentric bushing (10) axis, and power transmission shaft (8) outer end connects hitch bar (6).