SU766980A1

SU766980A1 - Intermediate belt conveyor drive

Info

Publication number: SU766980A1
Application number: SU782698058A
Authority: SU
Inventors: Николай Федорович Кравец; Дмитрий Федорович Бажков; Иван Иванович Фетисов; Юрий Леонидович Виноградов
Original assignee: Могилевский Машиностроительный Институт
Priority date: 1978-12-05
Filing date: 1978-12-05
Publication date: 1980-09-30

Description

(54) ПРОМЕЖУТОЧНЫЙ ПРИВОД ЛЕНТОЧНОГО (54) INTERMEDIARY BELT DRIVE

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Изобретение относитс к конвейерному транспорту и может быть использовано в приводах мощных ленточных конвейеров горнодобываюш,ей промышленности.The invention relates to conveyor transport and can be used in drives of powerful belt conveyors in the mining industry.

Известен промежуточный привод ленточного конвейера, включающий установленные на раме приводные и прижимные колеса, между которыми размещена лента, при этом прижимные колеса имеют винтовые прижимные устройства 1.Known intermediate drive belt conveyor, including mounted on the frame of the drive and pressure wheels, between which is placed the tape, while the pressure wheels have screw pressure devices 1.

Однако в этом приводе не обеспечиваетс автоматическое прижатие прижимных колес к ленте в зависимости от загрузки конвейера.However, in this drive, the pressing wheels are not automatically pressed against the belt depending on the conveyor loading.

Наиболее-близким к предлагаемому вл етс промежуточный привод ленточного конвейера, включающий установленные на раме под лентой опорные колеса и над ними и лентой прижимные колеса, концы валов которых соединены между собой цилиндрическими зубчатыми колесами, при этом каждый р д прижимных и опорных колес , расположенных вдоль ленты, охватывает гибкий орган 2.The closest to the present invention is an intermediate drive belt conveyor, including support wheels mounted on the frame under the tape and above them and the belt pressure wheels, the ends of the shafts of which are interconnected by cylindrical gear wheels, each row of clamping and supporting wheels arranged along tape covers a flexible body 2.

В этой конструкции промежуточного привода прижатие прижимных колес к ленте создаетс максимальным, исход из КОНВЕЙЕРАIn this intermediate drive design, the pressing of the pressure wheels to the belt is maximized, based on the CONVEYOR

передачи максимального т гового усили , определ емого максимальной загрузкой конвейера . В процессе работы усилие прижати посто нно и не зависит от режима. При неполной загрузке конвейера имеет место избыточное давление колес на ленту . Это неблагопри тно отражаетс на долговечности деталей привода и резко снижает КПД привода. Действительно, при снижении полезной нагрузки величина потерь остаетс почти такой же как и при полном моменте, относительна же величина потерь значительно возрастает. Во врем перегрузок, превышающих предусмотренные коэффициентом запаса, неизбежны пробуксовки , что ведет к местному износу щин и ленты и к преждевременному выходу ихtransferring the maximum tractive effort determined by the maximum loading of the conveyor. In the process of operation, press down permanently and does not depend on the mode. At incomplete loading of the conveyor, there is an excessive pressure of the wheels on the belt. This is adversely reflected in the durability of the drive components and dramatically reduces the drive efficiency. Indeed, as the payload decreases, the magnitude of the loss remains almost the same as at the full moment, while the relative magnitude of the loss increases significantly. During overloads exceeding the stipulated safety factors, slippage is inevitable, which leads to local wear of the belts and the belt and their premature release.

из стро . from build.

Цель изобретени - увеличение КПД привода путем обеспечени автоматического прижати прижимных колес к ленте в зависимости от момента нагрузки наThe purpose of the invention is to increase the efficiency of the drive by ensuring that the clamping wheels are automatically pressed to the belt depending on the moment of loading

20 прижимных колесах.20 clamping wheels.

Claims

This goal is achieved by connecting the ends of the shafts of the clamping support wheels to at least two pairs of cylindrical gears connected by pivotally-swiveling rods, the central ones of which have axes, and the frame is made with vertical guides to accommodate the axles. FIG. 1 shows an intermediate drive belt conveyor, general view; in fig. 2 - the same, perspective view. The intermediate belt conveyor drive contains support 2 mounted on frame 1 and 3 pneumatic wheels between which a single branch of conveyor belt 4 is placed. The ends of the drive shaft 5 and the driven shaft 6 are connected by a gear train consisting, for example, of two pairs of cylindrical wheels 7 associated pivot points 8 and 9. The central links 9 are provided with axles 10, which can move along the guides of the frame 1. The load branch of the tape 4 rests on roller bearings 11. A drive sprocket 12 is attached to the drive shaft 6. d operates as follows. Under the action of its own weight, the pressure wheels 3 contact with the conveyor belt 4. When the drive shaft 5 rotates, there are circumferential forces in the gearing of the gear wheels 7, the resulting forces of which act on the moving axes of the gear wheels to rotate the swivel links 9 axles 10 and simultaneously move these axes along the guides of the frame 1. As a result of the action of these forces, the driven shaft 6, connected by pivotally pivot rods 8 with the movable axles of the gear wheels, tends to move down l yuschim, pressing the tape 4 to the pneumatic wheels, and the more the load torque on the pinch wheels 3 the greater the contact pressure, ie. e. the force pressing the wheels 3 of the tape 4 in proportion to the load torque and automatically varies with a change in load on the conveyor. Thus, without using other means of automatic pressure control on the conveyor to press the belt to the belt, the proposed design makes it possible to most efficiently use the intermediate drive in various modes of conveyor operation, due to the increased drive efficiency, less wear of the drive wheels, the belt and other drive parts, which significantly increase their service life. Claims of the invention: An intermediate belt conveyor drive including support wheels mounted on the frame under the tape and above them and the belt pressure wheels, the shaft ends of which are interconnected by spur gears and rotated with them, in order to increase the drive efficiency by automatically press the clamping wheels to the belt, depending on the moment of loading on the clamping wheels, the connection of the ends of the shafts with the press and support wheels is made of at least two pairs of cylindrical FIR gears associated pivotally-rotating connecting rods, of which have a central axis, and the frame is provided with vertical na.pravl yuschimi for accommodating therein axes. Sources of information taken into account in the examination 1. US patent number 3773167, cl. 198-203, published. 11/20/73.

2. US patent number 2735537, cl. 198-203 publ. 02.21.56 (prototype).

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