CN2771571Y

CN2771571Y - Horizontal screw centrifugal machine differential mechanism

Info

Publication number: CN2771571Y
Application number: CN 200520069311
Authority: CN
Inventors: 吴培钧; 莫珉珉
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-24
Filing date: 2005-02-24
Publication date: 2006-04-12
Anticipated expiration: 2015-02-24

Abstract

A horizontal spiral centrifuge differential mechanism comprises a differential mechanism shell, a planetary gear train transmission mechanism and an output shaft, wherein the planetary gear train transmission mechanism and the output shaft are arranged in the differential mechanism shell, the planetary gear train transmission mechanism comprises a planetary gear and an inner gear in meshing transmission through the planetary gear, and the planetary gear train transmission mechanism is provided with an input shaft and an output mechanism. The differential mechanism shell is fixedly connected with the output mechanism, the output shaft is fixedly connected with the internal gear, so that the rotating speed of the output shaft is lower than that of the differential mechanism shell, and when the differential mechanism is installed on a horizontal screw centrifuge, the solid-liquid separation operation of the horizontal screw centrifuge can be facilitated.

Description

Horizontal screw centrifuger differential mechanism

Technical field

The utility model relates to a kind of horizontal screw centrifuger differential mechanism.

Background technique

Shown in accompanying drawing 2, the differential mechanism of existing normally used horizontal helico-centrifuger comprises shell and is arranged at the interior planetary gear train driving mechanism of shell, the planetary gear train driving mechanism comprises planetary gear train and the internal gear that is meshed with planetary gear train, planetary gear train has input shaft and output mechanism, wherein, output mechanism is connected with the output shaft of planetary gear train driving mechanism, and internal gear and shell are fixedly connected.The output shaft of planetary gear train driving mechanism is connected with the worm conveyor of centrifuge part when being installed on the centrifuge, the rotary drum of shell and centrifuge part is fixedly connected, at planetary gear train during around the eccentric revolution of input shaft, planetary gear train is the rotation with the internal gear engagement again, its spinning motion passes to output shaft by output mechanism with velocity ratio at 1: 1, make that the rotating speed of rotating ratio shell of output shaft is fast, thereby the rotating speed of worm conveyor rotating cylinder that makes the centrifuge part is faster than the rotating speed of rotary drum.But when the running of rotary drum nearly stops, the centrifugal force that remains in the liquid in the rotary drum can't form pendular ring less than liquid gravity, fall in the blade path of worm conveyor, because the rotating speed of worm conveyor rotating cylinder is faster than the rotating speed of rotary drum, the solid formation that the feasible residual liquid of falling in the blade path is pushed to rotary drum by helical blade exports, and causes trouble for the solid-liquid separation operation of horizontal helico-centrifuger.

Summary of the invention

The utility model purpose provides a kind of horizontal screw centrifuger differential mechanism, and the rotating speed of the rotating ratio differential mechanism shell of its output shaft is slow.

The technical solution of the utility model is: a kind of horizontal screw centrifuger differential mechanism, comprise the differential mechanism shell, be arranged at planetary gear train driving mechanism, output shaft in the described differential mechanism shell, described planetary gear train driving mechanism comprise at least one planet wheel, with planet wheel in the engagement internal gear, input shaft, the output mechanism that are provided with.Described planet wheel is arranged in the internal gear, and described input shaft is an eccentric shaft, and this input shaft and described planet wheel are rotationally connected, and has a plurality of raceways hole on the described planet wheel, and described output mechanism freely is inserted in the described raceway hole.Described differential mechanism shell fixes with output mechanism and connects, and described internal gear fixes with output shaft and connects.

The utility model compared with prior art, have following advantage: the differential mechanism shell is in transmission connection with planetary pinion mutually by output mechanism, when planetary gear train when input shaft is made revolution motion, engagement driving effect by internal gear and planetary gear train, making internal gear drive output shaft rotates, because the differential mechanism shell is fixedlyed connected with output mechanism, the rotation rotating speed of planetary gear train just passes to the differential mechanism shell by output mechanism, thereby make that the rotating speed of rotating ratio differential mechanism shell of output shaft is slow, when this differential mechanism is installed on the horizontal helico-centrifuger, can be beneficial to horizontal helico-centrifuger and carry out the solid-liquid separation operation.

Description of drawings

Accompanying drawing 1 is for being equipped with the main sectional view of horizontal helico-centrifuger of the present utility model;

Accompanying drawing 2 is the main sectional view of existing horizontal helico-centrifuger;

Wherein: 1, helical blade; 2, rotary drum; 3, differential mechanism shell; 4, internal gear; 5, planet wheel; 6, output shaft; 7, parting liquid tap hole; 8, output mechanism; 9, input shaft; 10, auxiliary driving wheel; 11, main driving wheel; 12, worm conveyor rotating cylinder; 13, separation chamber; 14, solid formation portals; 15, suspension inlet; 16, centrifuge part; 17, differential mechanism; 18, planetary gear train driving mechanism; 19, raceway hole; 20, pin; 21, roller;

Embodiment

Referring to accompanying drawing 1, a kind of horizontal screw centrifuger differential mechanism, comprise differential mechanism shell 3, be arranged at the planetary gear train driving mechanism 18 in the described differential mechanism shell 3, output shaft 6, described planetary gear train driving mechanism 18 comprises at least one planet wheel 5, internal gear 4 with engagement setting in the planet wheel 5, input shaft 9, output mechanism 8, described planet wheel 5 is arranged in the internal gear 4, described input shaft 9 is an eccentric shaft, this input shaft 9 is rotationally connected with described planet wheel 5, have a plurality of raceways hole 19 on the described planet wheel 5, described output mechanism 8 freely is inserted in the described raceway hole 19, described output mechanism 8 comprises pin 21 and is enclosed within roller 20 on the described pin 21 rotationally that described roller 20 freely is inserted in the described raceway hole 19.Described differential mechanism shell 3 fixes with output mechanism 8 and connects, and described internal gear 4 fixes with output shaft 6 and connects.

When being installed on differential mechanism 17 on the centrifuge part 16, output shaft 6 is in transmission connection mutually with worm

conveyor rotating cylinder

12, and 3 rotary drums 2 with centrifuge part 16 of differential mechanism shell are fixedly connected.One end of described rotary drum 2 has solid formation and portals 14, and its other end has parting liquid tap hole 7.

Worm conveyor rotating cylinder 12 is provided with helical blade 1, and output shaft 6 drives worm conveyor rotating cylinder 12 and rotates, thereby drives helical blade 1 rotation.Have suspension inlet 15 on the worm conveyor rotating cylinder 12, between the inwall of the outer wall of worm conveyor rotating cylinder 12 and rotary drum 2, has separation chamber 13, suspension enters in the inner chamber of worm conveyor rotating cylinder 12 from suspension inlet 15, enter again in the separation chamber 13, suspension is in separation chamber 13 after the solid-liquid separation, solid formation portals from the solid formation of

rotary drum

2 and 14 discharges, and liquid is then discharged by parting liquid tap hole 7.When the running of rotary drum 2 nearly stopped, the centrifugal force that remains in the liquid in the rotary drum 2 was because of falling in the passage of helical blade 1 less than liquid gravity.

Referring to accompanying drawing 1, be fixedly connected with main driving wheel 11 on the described differential mechanism shell 3, described differential mechanism 17 also comprises auxiliary driving wheel 10, described auxiliary driving wheel 10 is in transmission connection with planet wheel 5 mutually by input shaft 9.When main driving wheel 11 drives 3 rotations of differential mechanism shell, differential mechanism shell 3 drives rotary drum 2 and rotates, if input shaft 9 static (auxiliary driving wheel 10 need not be installed this moment), then planet wheel 5 drives internal gear 4 by the engagement driving effect and makes spinning motion, make output shaft 6 drive worm conveyor rotating cylinders 12 and rotate, thereby make the rotating speed of worm conveyor rotating cylinder 12 be lower than the rotating speed of rotary drum 2.And when auxiliary driving wheel 10 drives input shaft 9 rotations, planet wheel 5 revolves round the sun under the drive of input shaft 9, by planet wheel 5 and internal gear 4 engagement, make planet wheel 5 make spinning motion simultaneously, pass to differential mechanism shell 3 by output mechanism 8 with 1: 1 velocity ratio, the rotating speed of differential mechanism shell 3 promptly equates with the speed of autorotation of planet wheel 5, the rotating speed that is rotary drum 2 equates with the speed of autorotation of planet wheel 5, make the rotating speed of worm conveyor rotating cylinder 12 be lower than the rotating speed of rotary drum 2, make and fall into the interior residual liquid of helical blade passage is pushed to rotary drum 2 by helical blade 1 big end, discharge in the final self-separation liquid tap hole 7, prevent that residual liquid from flowing backwards in the solid formation storage facility, be convenient to this horizontal helico-centrifuger and carry out the solid-liquid separation operation.

Claims

1, a kind of horizontal screw centrifuger differential mechanism, comprise differential mechanism shell [3], be arranged at the planetary gear train driving mechanism [18] in the described differential mechanism shell [3], output shaft [6], described planetary gear train driving mechanism [18] comprises at least one planet wheel [5], internal gear [4] with engagement setting in the planet wheel [5], input shaft [9], output mechanism [8], described planet wheel [5] is arranged in the internal gear [4], described input shaft [9] is an eccentric shaft, this input shaft [9] is rotationally connected with described planet wheel [5], have a plurality of raceways hole [19] on the described planet wheel [5], described output mechanism [8] freely is inserted in the described raceway hole [19], it is characterized in that: described differential mechanism shell [3] fixes with output mechanism [8] and connects, and described internal gear [4] fixes with output shaft [6] and connects.

2, horizontal screw centrifuger differential mechanism according to claim 1, it is characterized in that: described output mechanism [8] comprises pin [21] and is enclosed within roller [20] on the described pin [21] rotationally that described roller [20] freely is inserted in the described raceway hole [19].