CN202556173U

CN202556173U - Grinding frock for dynamic simulating of controllable crowned roll

Info

Publication number: CN202556173U
Application number: CN2012201520404U
Authority: CN
Inventors: 潘荣敦; 别志兵
Original assignee: SHASHI LIGHT INDUSTRY MACHINERY Co Ltd
Current assignee: SHASHI LIGHT INDUSTRY MACHINERY Co Ltd
Priority date: 2012-04-12
Filing date: 2012-04-12
Publication date: 2012-11-28
Anticipated expiration: 2022-04-12

Abstract

The utility model relates to a grinding frock for dynamic simulating of a controllable crowned roll, falling into the technology field of mechanical gadget in paper manufacture. The grinding frock is composed of a roll shaft locating device, an adjustable tensioning support, a synchronous belt, a synchronous pulley, a frequency changing slowing-down motor and a frequency changing control device. The roll shaft locating device is composed of a clamping ring, a mounting plate, a set screw and a locating screw, and is mounted on the spindle through the clamping ring. The adjustable tensioning support is composed of a fixed basal plate, a support and a lead screw. The fixed basal plate is provided with the support and the lead screw. The frequency changing slowing-down motor is mounted on the support. The utility model utilizes the roll shaft locating device and the auxiliary drive frequency changing control device to control the spindle of crowned roll without dismounting, has simple and convenient operation, reduced labor intensity, selective grinding process according to the diameter of the roll body and worn condition, wide applications, shortened grinding period and low cost, and solves the problem of imbalance phenomenon of the roll shaft.

Description

A kind of crown controlled roll dynamic analog grinding fixture

Technical field

The utility model relates to a kind of crown controlled roll dynamic analog grinding fixture, belongs to papermaking processing equipment accessory technical field.

Background technology

Crown controlled roll is a kind of roller that can accurately regulate control roll surface sag, can be divided into types such as dancer and the controlled roller of subregion.Crown controlled roll is mainly assemblied by alloy steel roll shaft, roller shell and the bearing that is fixed on the roll shaft; Controlled roller roll shaft is fixed during work; Dancer roller shell is being supported by the hydraulic oil of uniform pressure in the nip total length and is rotating, and changes the amount of deflection of roller shell through the pressure reduction of regulating pressure oil and withdrawing oil; Subregion roller roller shell is divided into several region in the nip total length; Form the liquid static-pressure support oil film between the roller shell inwall through static pressure support piston and rotation at a high speed; The roller shell is suspended on the roll shaft rotates, change the amount of deflection of roller shell through the input pressure of regulating every group of pressurizing piston.

There is one deck cover material on crown controlled roll roll body surface; This cover material is a kind of special elastic composite, and after using after a while, the senile abrasion phenomenon can appear in the glue face; No matter still control the product quality aspect, all need the glue face is ground from the service equipment aspect.

Present domestic paper mill and machinery plant's grinding crown controlled roll roll body generally have dual mode; A kind of mode is after roll body and roll shaft are fixed as one; With common roller grinding roll surface (shown in accompanying drawing 1); No matter owing to be all to open on the dancer or the roll body of subregion roller to be shaped on the groove that seal is installed or the hole that static pressure supports is installed; So have roll shaft rotation energy imbalance in varying degrees, and there is the situation of decentraction in roll shaft unavoidably with the processing of roller shell endoporus, so can't reaches high-precision requirement to the roll body grinding (roll surface beat 0.02mm).Another kind of mode is to extract roll shaft out, installs and the supporting special-purpose back shaft of corresponding roll body at the roll body two ends, and be benchmark with the roll body two ends; Utilize the direct grinding roller face of power (shown in accompanying drawing 2) of grinding machine; Though this mode can guarantee grinding precision, reliable is convenient, and each the grinding all must be dismantled crown controlled roll; Increased the labour intensity of work, inefficiency; And unloading process can damage roll body endoporus or seal, must reconfigure corresponding new parts during assembling, has prolonged milling cycle, has increased manufacturing cost.

Summary of the invention

The purpose of the utility model is, a kind of employing roll shaft positioner location is provided, and the accessory drives VFC under the situation of not removing the crown controlled roll roller core, is support and fixing with the roller core, utilizes auxiliary power driving roller pair roller surface to grind; Easy and simple to handle, do not damage roll body, practice thrift parts, grinding precision is high, reduces labour intensity, increases work efficiency, and shortens the crown controlled roll dynamic analog grinding fixture of milling cycle.

The utility model is to realize above-mentioned purpose through following technical scheme

This crown controlled roll dynamic analog grinding fixture is made up of roll shaft positioner, adjustable tensioning support, synchronous band, synchronous pulley, variable frequency reducer motor and frequency-converting control device; It is characterized in that: described roll shaft positioner is made up of pressure ring, mounting disc, adjustment screw and dog screw; Through the pressure ring installing and locating on mandrel; Dispose door in the mounting disc, adjustment screw be installed on the pressure ring, door and be installed on mandrel and roll body between bearing inner race through adjustment screw location; Described adjustable tensioning support is made up of fixed base plate, support and screw mandrel; Fixed base plate is installed on by the grinding machine; Support and screw mandrel are installed on the fixed base plate; Variable frequency reducer motor is installed on the support, and variable frequency reducer motor is connected with synchronous pulley on the roll body through synchronous band, and variable frequency reducer motor is passed through lead and is connected with frequency-converting control device.

The utility model beneficial effect compared with prior art is:

This crown controlled roll dynamic analog grinding fixture adopts roll shaft positioner location, and the accessory drives VFC need not to dismantle the mandrel of crown controlled roll, and is simple to operation, reduced labour intensity; Can make the rotating speed of roll body can electrodeless adjustment in 4～50rpm scope through frequency-converting control device, can selectively carry out grinding according to different roll body diameters and abrasion condition, applied widely.Through adjustable tensioning support can all around adjustment variable frequency reducer motor and roll body between distance, thereby tensioning be with synchronously, make the bearing roller shell of rotary supporting roller body accurately, balance quality is high, high conformity has guaranteed Grinding Machining Quality.Solve the common roller grinding of existing employing and be prone to the roll shaft energy imbalance; Can't reach high-precision requirement to the roll body grinding; And extract roll shaft out and grind roll body with grinding machine, being prone to cause the damage of roll body endoporus or seal, the dismounting roll body reaches and more renews the operation of components trouble; Prolong milling cycle, increase the problem of manufacturing cost.This crown controlled roll dynamic analog grinding fixture grinding precision is high, and simple to operate, crudy is good, is fit to very much the crown controlled roll of grinding different structure and diameter.

Description of drawings

Fig. 1 is with the structural representation of common roller grinding roll surface in the prior art;

Fig. 2 be in the prior art special-purpose back shaft fixedly behind the roll body with the structural representation of the direct grinding roll surface of the power of grinding machine;

Fig. 3 is a kind of main TV structure sketch map of crown controlled roll dynamic analog grinding fixture;

Fig. 4 is a kind of plan structure sketch map of crown controlled roll dynamic analog grinding fixture;

Fig. 5 is a kind of side-looking structural representation of crown controlled roll dynamic analog grinding fixture.

Among the figure: 1, roll body, 2, the roll shaft positioner, 3, adjustable tensioning support, 4, band synchronously; 5, variable frequency reducer motor, 6, frequency-converting control device, 7, synchronous pulley, 8, pressure ring; 9, mounting disc, 10, adjustment screw, 11, dog screw, 12, door; 13, fixed base plate, 14, screw mandrel, 15, support, 16, mandrel.

The specific embodiment

Be described in detail below in conjunction with the embodiment of accompanying drawing the utility model:

This crown controlled roll dynamic analog grinding fixture by roll shaft positioner 2, adjustable tensioning support 3, be with 4 synchronously, synchronous pulley 7, variable frequency reducer motor 5 and frequency-converting control device 6 constitute.Described roll shaft positioner 2 is made up of pressure ring 8, mounting disc 9, adjustment screw 10 and dog screw 11; Through pressure ring 8 installing and locating on mandrel 16; Dispose door 12 in the mounting disc 9, door 12 is in order to prevent that grinding fluid from getting in the roll body 1 roll body 1 to be caused damage.Adjustment screw 10 is installed on the pressure ring 8, door 12 and be installed on mandrel 16 and roll body 1 between bearing inner race through adjustment screw 10 location, avoid because factor affecting grinding qualities such as bearing installation accuracy and play.

Described adjustable tensioning support 3 is made up of fixed base plate 13, support 15 and screw mandrel 14; Fixed base plate 13 is installed on by the grinding machine; Support 15 and screw mandrel 14 are installed on the fixed base plate 13; Variable frequency reducer motor 5 is installed on the support 15, variable frequency reducer motor 5 through synchronously with 4 with roll body 1 on synchronous pulley 7 be connected; Through the fixed base plate 13 and the screw mandrel 14 of adjustable tensioning support 3, but the distance between all around adjustment variable frequency reducer motor 5 and the roll body 1, thus the synchronous band of variable frequency reducer motor 5 is carried out tensioning; Variable frequency reducer motor 5 is ground roll body 1 surface through the mode driving roller of this indirect motion.Variable frequency reducer motor 5 is connected with frequency-converting control device 6 through lead.Roll body 1 is through the control of frequency-converting control device 6, makes its rotating speed can electrodeless adjustment in 4～50rpm scope, can select according to different roll body diameters and abrasion condition.

This crown controlled roll dynamic analog grinding fixture is installed roll body 1 through roll shaft positioner 2, need not remove the mandrel 16 of crown controlled roll, and is simple to operation, improved operating efficiency.Through with mandrel 7 stationary positioned grindings, make that the bearing that connects roll body 1 and mandrel 7 can be with high-precision rotary supporting roller shell, uniformity, balance are good, and grinding precision is high.Through the rotary speed of frequency-converting control device 6 control roll bodies 1, can carry out grinding to the crown controlled roll of different structure and diameter, applied widely.

The course of work of this crown controlled roll dynamic analog grinding fixture is:

When needs grind the crown controlled roll surface; Remove the end cap at roll body two ends earlier; At roll body 1 two ends the dynamic analog grinding fixture is installed respectively; Install synchronously with 4 and regulate the tensioning of synchronous band through adjustable tensioning support 3, start variable frequency reducer motor 5 through frequency-converting control device 6, (rotating speed of roll body 1 is 4～50rpm) to regulate corresponding rotating speed according to the difference of roll body 1 diameter; Select emery wheel, speed of grinding wheel and grinding fluid (it is opposite with the direction of rotation of roll body 1 that emery wheel turns to) according to roll body 1 Facing material, start grinding machine and then can carry out grinding roll body.

The above is the specific embodiment of this utility model; The above-mentioned flesh and blood that illustrates not the utility model constitutes restriction; Under the those of ordinary skill of technical field after having read this specification, can make an amendment or be out of shape the above-mentioned specific embodiment, and do not deviate from the essence and the scope of the utility model.

Claims

1. crown controlled roll dynamic analog grinding fixture; It is made up of roll shaft positioner (2), adjustable tensioning support (3), synchronous band (4), synchronous pulley (7), variable frequency reducer motor (5) and frequency-converting control device (6); It is characterized in that: described roll shaft positioner (2) is made up of pressure ring (8), mounting disc (9), adjustment screw (10) and dog screw (11); Through pressure ring (8) installing and locating on mandrel (16); Dispose door (12) in the mounting disc (9); Adjustment screw (10) is installed on the pressure ring (8), door (12) and be installed on mandrel (16) and roll body (1) between bearing inner race through adjustment screw (10) location; Described adjustable tensioning support (3) is made up of fixed base plate (13), support (15) and screw mandrel (14); Fixed base plate (13) is installed on by the grinding machine; Support (15) and screw mandrel (14) are installed on the fixed base plate (13); Variable frequency reducer motor (5) is installed on the support (15), and variable frequency reducer motor (5) is connected with synchronous pulley (7) on the roll body (1) through synchronous band (4), and variable frequency reducer motor (5) is passed through lead and is connected with frequency-converting control device (6).