SU815345A1

SU815345A1 - Belt brake

Info

Publication number: SU815345A1
Application number: SU792770164A
Authority: SU
Inventors: Анатолий Николаевич Раевский
Original assignee: Челябинский Филиал Государственногосоюзного Научно-Исследовательскоготракторного Института
Priority date: 1979-05-28
Filing date: 1979-05-28
Publication date: 1981-03-23

Description

(54) ЛЕНТОЧНЫЙ ТОРМОЗ(54) TAPE BRAKE

1one

Изобретение относитс к машиностроению и может быть использовано в тормозах транспортных и подъемно-транспортных машин.The invention relates to mechanical engineering and can be used in the brakes of transport and hoisting vehicles.

Известен ленточный тормоз, содержащий тормозную ленту, состо щую, по меньшей мере, из двух частей, два из смежных концов которых св заны между собой соединительным узлом, выполненным в виде шарнирной св зи 1.A belt brake is known, comprising a brake belt consisting of at least two parts, two of which adjacent ends are interconnected by a connecting unit made in the form of a hinge connection 1.

Недостатком этого тормоза вл етс нарастание удельных давлений ленты на барабан от ее сбегающего конца к набегающему , обусловленное постепенным суммированием удельных сил трени в указанном направлении. В реальных конструкци х это приводит к тому, что возникают значительные радиальные усили , действующие на барабан и требующие усилени конструкции его опор, а также неравномерность износа фрикционных накладок, существенно снижающа ее долговечность.The disadvantage of this brake is the increase in the specific pressure of the tape on the drum from its running end to the oncoming one, due to the gradual summation of the specific friction force in the indicated direction. In real structures, this leads to the fact that significant radial forces occur on the drum and require reinforcement of the structure of its bearings, as well as uneven wear of the friction linings, significantly reducing its durability.

Цель изобретени - увеличение долговечности тормозной ленты путем равномерного распределени нагрузки.The purpose of the invention is to increase the durability of the brake band by uniformly distributing the load.

Поставленна цель достигаетс тем, что ленточный тормоз, содержащий тормознуюThe goal is achieved by the fact that the belt brake containing the brake

ленту, состо щую, по меньщеу мере, из двух частей, два из смежных концов которых св заны между собой соединительным узлом, выполненным в виде рычага и упоров, установленных по разные стороны рычага с противоположных его концов, при этом концы тормозной ленты последовательно закреплены на упом нутом рычаге между упорами .a tape consisting at least of two parts, two of adjacent ends of which are interconnected by a connecting node made in the form of a lever and stops mounted on opposite sides of the lever from opposite ends of it, while the ends of the brake tape are successively fixed to mentioned lever between the stops.

На чертеже схематически изображен ленточный тормоз, общий вид. Ленточный тормоз состоит из тормозного барабана 1, охватывающей его тормозной ленты 2, состо щей из 2-х частей 3 и 4, два конца которой соединены шарнирами Зи 3 с механизмом 5 нат жени . Два других конца присоединены к соединительному механизму, выполненному в виде рычага 6 с креплени ми 7 и 8. Рычаг имеет два упора Я и 10.The drawing schematically shows a belt brake, a general view. The belt brake consists of a brake drum 1, which encloses its brake tape 2, consisting of 2 parts 3 and 4, the two ends of which are connected by hinges Z 3 with a tension mechanism 5. The other two ends are connected to a connecting mechanism, made in the form of a lever 6 with fasteners 7 and 8. The lever has two stops I and 10.

Тормоз рз отает следующим образом.Brake rz returns as follows.

Claims

Sagging on drum 1 with rotation against the stroke of the arrow, under the action of force P mehan: -.:to tension 5, the gap between belt 2 and drum 1 is selected, lever 6 under the action of rotation of the drum comes in contact with support 10. Strengthened The upper 3 and lower 4 parts of the belt act on the lever 6 at points located at different distances from its support 10, so that a relation set by the designer is established between them, which can be within 1.5: +4. When the drum 1 rotates in the opposite direction, the lever 6 contacts the support 9 and also "divides the tension in a given ratio. This ratio leads to a decrease in the tightening torque of the incident part of the tape.

2. Brake tape can be divided into an arbitrary number of parts connected by the proposed device, and the ratio of the arms of the levers can be selected at the request of the designer with reference to the specific conditions of the brake. By reducing the uneven pressures and decreasing peak absolute values, the linear wear of the friction elements of the tape is reduced and equalized, and hence its durability is increased. Claim tape containing a brake band consisting of at least two parts, two of which adjacent ends are interconnected by a connecting unit, characterized in that, in order to increase the durability of the brake band by uniformly distributing the load, the connecting unit made in the form of a lever and stops mounted one above the lever and the other under it from opposite ends, with the ends of the brake band successively fixed to said lever 1 "between the stops. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 216398, cl. F 16 D 49/12, 1967 (prototype).