SU671841A1

SU671841A1 - Impact-action crusher rotor

Info

Publication number: SU671841A1
Application number: SU772557217A
Authority: SU
Inventors: Генрих Александрович Сперанский; Борис Израилович Коновалов; Анатолий Иванович Косарев
Original assignee: Всесоюзный научно-исследовательский институт строительного и дорожного машиностроения
Priority date: 1977-12-20
Filing date: 1977-12-20
Publication date: 1979-07-05

Description

1one

Изобретение относитс к конструктивньам элементам роторных дробилок и может быть применено в строительной , горнометаллургической и других отрасл х промышленности. The invention relates to structural elements of rotary crushers and can be applied in the construction, mining and metallurgical and other industries of the industry.

Известны роторы дробилок ударного действи с выдвижными билами 1. Но указанна конструкци обличаетс низкой эффективностью процесса дроблени .The rotors of impact crushers with retractable bars 1 are known. But this design is exposed to the low efficiency of the crushing process.

Наиболее близким техническим решением к изобретению вл етс ротор дробилки ударного действи , содержащий корпус, выдвижные била и зажимные устройства, каждое из которых включает клин и ст жной болт .2.The closest technical solution to the invention is an impacting rotor rotor comprising a housing, retractable struts and clamping devices, each of which includes a wedge and a clamping bolt .2.

Однако така конструкци отличает ; низкой эффективностью процесса дроблени .However, such a structure is different; low efficiency of the crushing process.

Цель изобретени - повышение эффективности процесса дроблени . Указанна цель достигаетс т&л, что в роторе дробилки ударного действи , содержащем корпус, выдвижные била и зажимные устройства, каждое из которых включает клин и ст жной болт, каждое зажимное устройство снабжено прс ежуточным элементсм, через который закреплено биг ло, причем последнее выполнено в виThe purpose of the invention is to increase the efficiency of the crushing process. This goal achieves a t & l that in the rotor of an impact crusher, comprising a housing, retractable billers and clamping devices, each of which includes a wedge and a clamping bolt, each clamping device is provided with a special element, through which the big one is fixed, the latter is completed in vie

де криволинейного в поперечнсм сечении бруса, брус может быть выполнен в виде полукольца, промежуточныйde curved cross-section of the beam, the beam can be made in the form of a half ring, intermediate

элемент - в виде опертого на корпус бруса с обработанной поверхностью под клин, а к клину могут быть шарнирно прикреплены болты, проход щие через соответствующие отверсти в корпусе с зазором.the element is in the form of a timber supported on the body with the treated surface under the wedge, and bolts that pass through the corresponding openings in the body with a gap can be hinged to the wedge.

На чертеже предоставлен ротор ударного действи в разрезе.In the drawing, a percussion rotor is shown in section.

Ротор дробилки ударного действи состоит из корпуса 1 с пазами 2 по всей длине ротора. В каждый пазThe rotor of the impact crusher consists of a housing 1 with slots 2 along the entire length of the rotor. In every groove

вставлено било 3, имеющее в поперечном сечении форму криволинейного бруса . На передней опорной поверхности 4 била 3 выполнен р д канавок 5.Beat 3 inserted, having a curved bar shape in cross section. A row of grooves 5 is made on the front bearing surface 4 of the beater 3.

Одной своей стороной било 3 шарнирно оперто на специально прёдусмотрёЙный на корпусе I выступ 6, заход щий в одну из канавок 5 била 3.With its one side, 3 was pivotally supported on the protrusion 6, which was specially observed on the body of I, which entered into one of the grooves 5 and struck 3.

Между другой стороной била 3 иBetween the other side beat 3 and

стенкой паза установлен промежуточный intermediate wall is installed

25 брус 7, опертый на корпус, и клин 8,25 beam 7, supported on the body, and a wedge 8,

Claims

which is tightened by means of several bolts 9 hinged to it, passing through the corresponding holes of the housing 10 with a gap. The working surface of the blade is the surface 11, which connects the front 4 and rear 12 support surfaces of the blade 3. The assembly and mounting of the blade is carried out in the following way. Bilo 3, inserted into the longitudinal pa 2 of the rotor body 1, is supported by the corresponding groove 5 on the protrusion 6 of the rotor body 1. An intermediate beam 7 is superimposed on the rear bearing surface 12 of the beam up to the stop in the housing 1. This kit with wedge 8 is fastened with bolts 9. As it is worn with the help of the same bolts 9, the wedge 8 is loosened, beat 3, does not turn. for wear, place the next groove on the body projection, after which 8 are tightened again. The curvilinear form of the blower bends a constant, not dependent on the upward movement of the backside of the rear support surface 12 in the direction opposite to the rotation, which significantly reduces the specific wear of the blows, in addition ensures that the geometry of the front cushion is preserved during the entire service life. . This is due to the fact that between the front bearing surface 4 of the beater 3 and the housing 1 there is a cavity, and the wear in the grinding zone of both the back (outer) and the front (inner) surface of the bdla forms a shock edge having a small radius that remains unchanged when further advancements, i.e. The blow when crushing the rock seemed to self-sharpening, which ultimately provides a high: efficient crushing with constant HHHtjM in composition by the finished product. In addition, this form of the blow without increasing the size of the rotor significantly increases the utilization rate of the metal. The presence of an intermediate element allows for the complete elimination of machining of the cast blows. This is due to the fact that the pulling wedge does not connect directly to the surface of the beat, but clamp it through intermediate element. The berth of the intermediate element is strictly orientated relative to the hull by opyran, which maintains a given angle to the new groove. This ensures that the wedge is pushed all the planes to the walls of the wedge groove and, therefore, securely fastens the blade. The hinged ball bearing on the corus allows the bill to self-adjust when tightening and to ensure reliable contact both with the housing, ak and with the intermediate element, regardless of the manufacturing accuracy. The design of the clamping devices and the frame, the beater, greatly facilitates the process of extending the bead from the body, since there is no need for a hollow pulling and turning the beater. Thus, the use of the impactor's predictable impacting rotor improves the efficiency of the material crushing process. Invention 1. A rotor of impact crusher, comprising a casing, retractable billers and clamping devices, each of which includes a wedge and a clamping bolt, -o tl and h; n and c with the fact that, in order to increase efficiency the crushing process, each clamping device is equipped with an intermediate element through which a wedge is fastened to the beater, the latter being made in the form of a curved bar in cross section. 2. A rotor of impact crusher according to claim 1, characterized in that the beam is made in the form of a half ring. 3. The rotor of the impact crusher according to claim 1, of which is the case that the hedgehog element is made in the form of an element supported on the body: the surface under the wedge. . 4. The rotor of the impact crusher. VIa on p. 1, about tl and h and yu shchi y-. with that. that, in order to evenly tighten the wedge, bolts are pivotally attached to the latter, passing through the corresponding holes in the housing with a gap. ; Sources of information taken into account in the examination Iv Pateit of Germany 930839, cl. 50 C, 8/017 publ. 1951,

2. Bauman V. A. Impact crushers, M., 1973, p. 126.

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