CN2155950Y

CN2155950Y - Three-foot automatic unloading centrifugal machine with scraper

Info

Publication number: CN2155950Y
Application number: CN 93216671
Authority: CN
Inventors: 董守梅
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-24
Filing date: 1993-06-24
Publication date: 1994-02-16
Anticipated expiration: 2003-06-24

Abstract

The utility model discloses a three foot automatic unloading centrifugal machine with scrapers, which is characterized in that a main shaft driving device is driven by a motor, a planet speed reduction transmission mechanism and a lower overrunning clutch is arranged in a driven belt roller supported on the main shaft, an upper overrunning clutch and a brake of centrifugal throwing blocks are respectively arranged on the upper part and the lower part of the driven belt roller, and the functions of the main shaft driving device, such as transmission, throw-over and brake can be integrated through the forward-backward running of the motor and the interoperation of each mechanism. The utility model has the advantages of small volume, simple structure, stable operation, reliability, and good sealing performance. The conversion between the high velocity and the low velocity is fast.

Description

Three-foot automatic unloading centrifugal machine with scraper

The utility model relates to a kind of 3-foot band scraper bottom automatic discharge centrifuge, belongs to the liquid of intermittently operated, filtering type, solid separation equipment.

The design feature one of 3-foot band scraper bottom automatic discharge centrifuge is that the transmission centrifugal device is lifted on three supporting legs, forms elastic floating and connects, to reduce in the centrifugal process vibration to ground; The 2nd, have a cover height, the spindle gearing of low speed conversion, realize high speed centrifugation, the job requirement of low speed scraper discharging, the known configurations of this cover spindle gearing is to be rotated at a high speed by belt transmission and throwing piece formula friction clutch drive shaft by main motor, pass through belt transmission by auxiliary-motor again, freewheel clutch and worm and gear speed-reduction apparatus drive shaft low speed rotation, at height, by brake cylinder rotary drum is implemented braking in the low speed transfer process, this shows, this spindle gearing volume is big, complex structure, and it is main, auxiliary-motor is arranged on homonymy, cause the machine gravity biasing big, also just aggravated vibration in the running.

The purpose of this utility model provides the centrifuge of a kind of spindle gearing volume 3-foot band automatic discharging in scraper bottom little and simple and compact for structure.

Solution of the present utility model is that described spindle gearing is by motor, drive pulley, driving belt, negative pulley wheel, planet speed reduction driving mechanism, last freewheel clutch, following freewheel clutch, centrifugal throwing piece brake and main shaft are formed, wherein planet speed reduction driving mechanism and following freewheel clutch are arranged on by the belt wheel body, upper press cover and lower cover are formed and are bearing in by upper bearing (metal) and lower bearing in the inner chamber of the negative pulley wheel on the main shaft, planet speed reduction driving mechanism comprises coaxial installation and is bearing in belt wheel body interior upper planetary gear and lower planetary gear, with upper planetary gear engagement and be sleeved on the last sun gear on the main shaft and mesh and be fixed on following sun gear on the main shaft with lower planetary gear, following freewheel clutch is arranged on the last freewheel clutch of upper press cover top together by star-wheel, roller and shell are formed, the shell of following freewheel clutch and star-wheel are separately fixed on lower cover and following sun gear or the main shaft, the star-wheel of last freewheel clutch and shell be separately fixed at sun gear and the star-wheel shell block that fuses with casing on, centrifugal throwing piece brake is arranged on the below of lower cover, throw the piece dish by the braking that fuses with main shaft, be circumferentially with brake(-holder) block and placement and brake braking throwing piece of throwing on the piece dish and the trig loop composition that is located at the lower cover inwall, be respectively equipped with radially oil sealing between the braking throwing piece dish together with star-wheel shell block and lower cover at upper press cover.

Further illustrate detailed content of the present utility model below in conjunction with drawings and Examples.

Fig. 1: structure diagram of the present utility model;

Fig. 2: spindle gearing structure chart;

Fig. 3: A-A profile.

3-foot band scraper bottom automatic discharge centrifuge is by comprising spindle gearing, the scraper discharging device, rotary drum 1, the transmission centrifugal device of casing 2 and charge pipe 3 and tripodia support 4 are formed, the transmission centrifugal device connects with tripodia support 4 elastic floatings by casing 2, be provided with filtrate discharge pipe 5 and filter residue delivery pipe 6 in the bottom of casing 2, described spindle gearing is by motor 7, drive pulley 8, driving belt 9, negative pulley wheel, planet speed reduction driving mechanism, last freewheel clutch, following freewheel clutch, centrifugal throwing piece brake and main shaft 10 are formed, wherein planet speed reduction driving mechanism and following freewheel clutch are arranged on by belt wheel body 11, upper press cover 12 and lower cover 13 are formed and are bearing in by upper bearing (metal) 14 and lower bearing 15 in the inner chamber 16 of the negative pulley wheel on the main shaft 10, planet speed reduction driving mechanism comprises coaxial installation and is bearing in upper planetary gear 17 and lower planetary gear 18 in the belt wheel body 11, with upper planetary gear 17 engagement and be sleeved on the last sun gear 19 on the main shaft 10 and mesh and be fixed on following sun gear 20 on the main shaft 10 with lower planetary gear 18, following freewheel clutch is with being arranged on the last freewheel clutch of upper press cover 12 tops by star-wheel 21, roller 22 and shell 23 are formed, the shell 23 of following freewheel clutch and star-wheel 21 are separately fixed on lower cover 13 and following sun gear 20 or the main shaft 10, the star-wheel 21 of last freewheel clutch and shell 23 be separately fixed at sun gear 19 and the star-wheel shell block 24 that fuses with casing 2 on, centrifugal throwing piece brake is arranged on the below of lower cover 13, throw piece dish 25 by the braking that fuses with main shaft 10, piece 27 and trig loop 28 compositions that are located at lower cover 13 inwalls are thrown in the braking that is circumferentially with brake(-holder) block 26 and is placed on the braking throwing piece dish 25, with braking to throw between the piece dish 25 radially oil sealing 29 and 30 are set with star-wheel shell block 24 and lower cover 13 at upper press cover 12 respectively.Consider centrifugal equilibrium of forces, the quantity of upper planetary gear 17 and lower planetary gear 18 respectively is two, and in the inner chamber 16 of negative pulley wheel symmetric arrays; Last sun gear 19 can be sleeved on the main shaft 10 by copper sheathing 31; Braking is thrown piece dish 25 and also can be fixed on the main shaft 10 by the Lower shaft sleeve 32 with its connection, and forms integrative-structure with main shaft 10, in order to improve the stressing conditions of main shaft 10, bearing 33 can be set below main shaft 10.

When the negative pulley wheel of above-mentioned spindle gearing counterclockwise rotates, negative pulley wheel passes through the engagement of freewheel clutch down and the disengagement of last freewheel clutch, make main shaft with the rotation of negative pulley wheel synchronous high-speed, braking this moment is thrown piece and be close to trig loop under action of centrifugal force; When the negative pulley wheel clockwise direction rotates, brake plays braking action, main shaft is slowed down, negative pulley wheel passes through the disengagement of freewheel clutch down and the engagement of last freewheel clutch, make planet speed reduction driving mechanism work, main shaft promptly counterclockwise rotates by low speed, this shows, this spindle gearing only adopts a motor, union transmission, throw-over, braking function is in one, and it is little to have a volume, characteristics simple and compact for structure, and make centrifuge realize the height of full mechanical transmission-type, the low speed conversion, and throw-over is rapid, and running steadily, reliable operation, good seal.

Claims

1, a kind of 3-foot band scraper bottom automatic discharge centrifuge, have by spindle gearing, the scraper discharging device, rotary drum, transmission centrifugal device and tripodia support that casing and charge pipe are formed, the transmission centrifugal device connects with tripodia support elastic floating by casing, the casing bottom is provided with filtrate discharge pipe and filter residue delivery pipe, it is characterized in that: described spindle gearing is by motor (7), drive pulley (8), driving belt (9), negative pulley wheel, planet speed reduction driving mechanism, last freewheel clutch, following freewheel clutch, centrifugal throwing piece brake and main shaft (10) are formed, wherein planet speed reduction driving mechanism and following freewheel clutch are arranged on by belt wheel body (11), upper press cover (12) and lower cover (13) are formed and are bearing in by upper bearing (metal) (14) and lower bearing (15) in the inner chamber (16) of the negative pulley wheel on the main shaft (10), planet speed reduction driving mechanism comprises coaxial installation and is bearing in belt wheel body (11) interior upper planetary gear (17) and lower planetary gear (18), same upper planetary gear (17) meshes and is sleeved on last sun gear (19) on the main shaft (10) and same lower planetary gear (18) and meshes and be fixed on following sun gear (20) on the main shaft (10), following freewheel clutch is arranged on the last freewheel clutch of upper press cover (12) top together by star-wheel (21), roller (22) and shell (23) are formed, shell of following freewheel clutch (23) and star-wheel (21) are separately fixed on lower cover (13) and following sun gear (20) or the main shaft (10), star-wheel of last freewheel clutch (21) and shell (23) are separately fixed on the star-wheel shell block (24) that sun gear (19) and same casing (2) fuse, centrifugal throwing piece brake is arranged on the below of lower cover (13), throw piece dish (25) by the braking that same main shaft (10) fuses, be circumferentially with brake(-holder) block (26) and be placed on trig loop (28) composition that braking is thrown the braking throwing piece (27) on the piece dish (25) and is located at lower cover (13) inwall, throw between the piece dish (25) with braking with star-wheel shell block (24) and lower cover (13) at upper press cover (12) and be respectively equipped with radially oil sealing (29 and 30).