SU1470331A1

SU1470331A1 - Planetary centrifugal mill

Info

Publication number: SU1470331A1
Application number: SU874237510A
Authority: SU
Inventors: Александр Сергеевич Дубровин
Original assignee: Конструкторско-Технологическое Бюро "Стройиндустрия"
Priority date: 1987-04-28
Filing date: 1987-04-28
Publication date: 1989-04-07

Abstract

Изобретение относитс к области измельчени материалов, а именно к планетарным центробежным мельницам непрерывного действи , и обеспечивает повышение эффективности работы мельницы за счет сокращени частоты замены и простоев при замене футеровки помольных барабанов.Планетарна мельница содержит водило с верхней 2 и нижней 3 плитами, три помольных барабана, каждый из которых имеет полую цапфу 5, цапфу 7, два полукорпуса 9 с не менее чем двум отверсти ми 10, диаметр которых в два-три раза больше диаметра мелющих тел, крепежные болты 11, св зывающие оба полукорпуса 9 между собой и с цапфами 5 и 7,футеровку в виде гильзы 12 и две торцовые крышки 13 и 14. На боковой поверхности корпуса 15 выполнен монтажный проем с дверью 16.Привод водила смонтирован на верхней крышке 18 и содержит вал-шестерню 21, двигатели 22, паразитные шестерни 23 и 24, вход щие в зацепление с валами шестерн ми 21 и суммирующим зубчатым колесом 25.Планетарна передача содержит неподвижную полуось 33, один конец которой установлен в подшипниках 34 и 35, а другой - в нижней крышке 20 корпуса и снабжен самотормоз щимс механизмом, выполненным в виде конуса, упорной резьбы и круглой гайки, застопоренной на нижней крышке 20 болтами. На нижней плите 3 водила размещены три паразитных сателлита 37, каждый из которых находитс в зацеплении с солнечным колесом 36, установленным на полуоси 33, и с сателлитом 38, смонтированным на цапфе 7 каждого из трех помольных барабанов. Мельница имеет системы питани и разгрузки помольных барабанов. 3 з.п.ф-лы, 5 ил.The invention relates to the field of grinding materials, namely to planetary centrifugal mills of continuous action, and improves the efficiency of the mill by reducing the frequency of replacement and downtime when replacing the lining of the grinding drums. The planetary mill contains a carrier with two upper and lower three plates, three grinding drums , each of which has a hollow pin 5, pin 7, two semi-bodies 9 with at least two holes 10, the diameter of which is two to three times the diameter of the grinding bodies, fixing bolts 11, connecting Both semi-bodies 9, which intersect with each other and with pins 5 and 7, lining in the form of a sleeve 12 and two end covers 13 and 14. A mounting opening with a door 16 is made on the side surface of the housing 15. The drive is mounted on the top cover 18 and contains a gear shaft 21, motors 22, parasitic gears 23 and 24, which engage with shafts, gears 21 and summing gear wheel 25. The planetary gear includes a fixed semi-axle 33, one end of which is installed in bearings 34 and 35, and the other in the bottom cover housing and is equipped with a self-braking mechanism, which cone-shaped, thrusting thread and a round nut fixed on the bottom cover with 20 bolts. Three parasitic satellites 37 are located on the bottom plate 3 of the carrier, each of which is in engagement with the sun wheel 36 mounted on the semi-axle 33 and with the satellite 38 mounted on the trunnion 7 of each of the three grinding drums. The mill has feed and discharge systems for grinding drums. 3 hp ff, 5 ill.

Description

А- ЛA-L

ПP

3434

Фиг. гFIG. g

I ll бариинт)I ll baryint)

JJ W 20 / / /JJ W 20 / / /

Ри.г.З Pu.G.Z.

Buff 6Buff 6

иг. ig.

I(26apuanm)I (26apuanm)

Фиг. 5FIG. five

4747

Claims

Claim

1. A planetary centrifugal mill, comprising a housing with upper and lower covers, connected to the drive with a carrier with upper and lower plates interconnected by racks, grinding drums installed in the carrier, each of which is made with a cylindrical body, and a half shaft, one end of which is mounted in the carrier, and the other in the bottom cover of the mill body, characterized in that, in order to increase the efficiency of the mill by reducing the frequency of replacement and downtime when replacing the lining of grinding drums, it is equipped with with a drive driven by a brake, a self-braking mechanism mounted on the bottom cover of the mill body and interacting with the end of the axle shaft mounted in the latter using a sliding bearing, and each grinding drum is made with a liner in the form of a sleeve with end caps, with 1470331 the cylindrical bodies of grinding drums made up of detachable parts, on the side surface of each of which at least four holes are made 2-3 times larger than the diameter of the grinding bodies, and the mill body has a door.

2. Mill according to π. 1, characterized in that the self-braking mechanism is made in the form of a self-braking worm gear located on the lower cover of the mill body, the worm wheel of which is connected to the end of the axle shaft mounted in the lower cover of the mill body with the possibility of a connector.

3. Mill according to π. 1, characterized in that the self-locking mechanism is made in the form of a cone and a thrust thread on the surface of the end of the axle shaft installed in the lower cover of the mill body made with a conical hole, as well as a nut with a thrust thread locked on the latter.

4. Mill according to paragraphs. 1-3, characterized in that the lower and upper carrier plates are equipped with bearings in which the end of the axle shaft is mounted on a sliding fit.

Figure 1

I option)

1 (2 & option)

FIG. 5