CN2188425Y

CN2188425Y - Roll squeezer

Info

Publication number: CN2188425Y
Application number: CN 93242535
Authority: CN
Inventors: 石俊坤
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-16
Filing date: 1993-10-16
Publication date: 1995-02-01
Anticipated expiration: 2003-10-16

Abstract

The utility model relates to a roll squeezer which is composed of a frame 2, an accumulator 4, a hydraulic cylinder 3, a bearing seat for a movable roll 10, a bearing seat for a stationary roll 9, a couple of stationary roll wheels 5 which can rotate oppositely and a movable roll wheel 6, wherein, the ends of roll shafts of the stationary roll wheels 5 and the movable roll wheel 6 are respectively provided with hydraulic motors 1. When the roll shafts have large diameters, the roll shafts are supported by hydrodynamic hydrostatic bearings. Compared with the prior art, the utility model has the advantages of comparatively obvious energy-saving effect and low heat generation.

Description

Roll squeezer

The utility model relates to disintegrating apparatus, especially for the disintegrating apparatus in cement and the metallurgical mine production." cement technology " that State Bureau of Building Materials Industry's Tianjin Design Inst. of Cement Industry is sponsored published on the phase 39-42 face and has been entitled as " operation principle of KHD roll squeezer and the application in manufacture of cement thereof " literary composition in 1987 the 6th; the architectural feature of existing roll squeezer is disclosed; promptly drive fixedly running roller 5 and the movable running roller 6 that rotates in opposite directions by two planetary reduction gears by motor; the bearing block of movable running roller 6 can move forward and backward by relative fixed running roller 5 on frame 2; hydraulic cylinder 3 then make movable running roller 6 with certain pressure to fixedly running roller is close; produce pressure with comminuting matter; excessive as pressure; then hydraulic oil drains into the accumulator 4 that is full of nitrogen; move after making movable running roller 6, with the protection machine.Because planetary reduction gear can not correspondingly change the rotating speed and the moment of torsion of running roller at any time because of the variation of output and operating mode, thereby exists the phenomenon of energy dissipation inevitably, in addition, it is also very big to generate heat, and needs to be equipped with cooling system.

It is a kind of rational in infrastructure that the purpose of this utility model is to provide, conserve energy, and low roll squeezer generates heat.

The technical scheme of taking for achieving the above object is as follows: in the fixing roll shaft end of running roller and movable running roller hydraulic motor is installed respectively, to replace planetary reduction gear of the prior art.

Support the fixedly roll shaft of running roller and movable running roller with the fluid dynamic hydrostatic bearing, be particularly suitable for large diameter roll shaft.

The utility model compared with prior art owing to adopted hydraulic motor as the fixing drive unit of running roller and movable running roller, can infinitely variable speeds and change moment of torsion, can correspondingly change the rotating speed and the moment of torsion of running roller at any time because of output and working conditions change.Thereby can make full use of energy, and energy savings, simultaneously, self has cooling effect hydraulic system, does not need to be equipped with in addition cooling system.

Use the fluid dynamic hydrostatic bearing, can bear bigger pressure, and the life-span is long, and fluid self has cooling effect, it is low to generate heat, and does not need to cool off separately.

Below, the utility model will be described in further detail in conjunction with the accompanying drawings.

Fig. 1, roll squeezer structure chart

Fig. 2, fluid dynamic hydrostatic bearing structure chart

Fig. 3, hydraulic motor hydraulic scheme

Two hydraulic motors 1 are installed on the roll shaft of fixedly running roller 5 and movable running roller 6 by shaft coupling.The radial plunger piston motor that can select low-speed big on sale on the market for use is as hydraulic motor of the present utility model.The hydraulic system of control hydraulic motor is seen Fig. 3.When output changed, for example, output increased, and the charging that enters between two running rollers increases, and requires to accelerate the rotating speed of running roller, so that can handle the charging that increases rapidly, assurance produces pulverizes effect.At this moment, need only servo control mechanism, the flow of hydraulic system is changed, thereby the rotating speed of hydraulic motor output just changes thereupon, to adapt to the variation of output by manual or mechanical method operate pump 7.This rotation speed change by HYDRAULIC CONTROL SYSTEM is stepless, thereby can adapt to any variation of output and operating mode, this point, and planetary reduction gear is not just accomplished.The utility model can maximally utilise energy, balanced production.

Replace planetary reduction gear with hydraulic motor, it is low also to have a cost, simple operation and other advantages; And it is low to generate heat, and need not be equipped with cooling system.

Simultaneously, hydraulic motor adjustment activity in time, fixedly the corresponding linear resonance surface velocity of running roller is synchronous; Reduce the frictional force between material and running roller surface to greatest extent, make it power consumption and reduce.Thus, the wearing and tearing on running roller surface also reduce, and prolong the service life of running roller.

In addition, if before decelerator, use variable-speed motor to be power, also can achieve the above object, and need not increase workload those skilled in the art.

Under the situation of major diameter rolling axle, preferably adopt the roll shaft of fluid dynamic hydrostatic bearing supporting roller wheel.By the aperture on the supporting roller wheel bearing block 8, the hydraulic oil that will have pressure injects in the cavity of bearing block of running roller, and with the jack-up roll shaft, roll shaft rotates in hydraulic oil, does not have mechanical contact friction.Because the pressure of hydraulic oil is by regulation of hydraulic system, thereby more can bear big pressure than common rolling bearing, and it is low to generate heat, the life-span is long.

Claims

1, a kind of by frame 2, accumulator 4, hydraulic cylinder 3, movable roll wheel bearing seat 10, stationary roll wheel bearing seat 9 and a pair ofly can make the roll squeezer that the fixedly running roller 5 that rotates in opposite directions and movable running roller 6 are formed, it is characterized in that fixedly the roll shaft end of running roller 5 and movable running roller 6 is installed hydraulic motor 1 respectively.

2, a kind of roll squeezer as claimed in claim 1 is characterized in that having aperture 8 on the bearing block of said fixedly running roller 5 of supporting and movable running roller 6 roll shafts, injects hydraulic oil, constitutes the fluid dynamic hydrostatic bearing with supporting roller.