SU962171A1

SU962171A1 - Apparatus for monitoring tension of flexible pull member of hoist

Info

Publication number: SU962171A1
Application number: SU813266216A
Authority: SU
Inventors: Соломон Борисович Годзданкер; Владимир Никанорович Воробьев
Original assignee: За витель
Priority date: 1981-03-30
Filing date: 1981-03-30
Publication date: 1982-09-30

Description

Изобретение относитс к устройств с1м контрол надежности работы подъемных установок со шкивами трени .The invention relates to a device for monitoring the reliability of operation of hoisting equipment with friction pulleys.

Известно устройство дл контрол нат жени гибкого т гового органа, содержащее контактирующие с канатоведущим шкивом прижимные ролики, св занные посредством гибкого элемента между собой и с прижимным механизмом f 1.A device for controlling the tension of a flexible traction device is known, comprising pressure rollers in contact with the trailing pulley connected by means of a flexible element to each other and with the clamping mechanism f 1.

Недостаток известного устройства заклк чаетс в сложности конструкции.A disadvantage of the known device is the complexity of the design.

Цель изобретени - упрощение конструкции устройства.The purpose of the invention is to simplify the design of the device.

Доставленна цель достигаетс тем/ что прижимной механизм снабжен промежуточным шкивом и польм барабаном с установленным внутри него коническим дифференциалом, входной вал которого кинематически св зан с канатоведущим и промежуточными шкивами .The delivered target is achieved by the fact that the clamping mechanism is equipped with an intermediate pulley and a polkom drum with a tapered differential installed inside it, the input shaft of which is kinematically connected with the traction driver and intermediate pulleys.

На фиг. 1 изображено предлагаемое устройство, вид сбоку; на фиг. 2 вид Л на фиг.1; на фиг. 3 - разрез Б-Б на фиг.2.FIG. 1 shows the proposed device, side view; in fig. 2, type L in FIG. in fig. 3 is a section BB in FIG.

Устройство содержит канатЪ эедущий шкив 1, промежуточный шкив 2, контактирующий с т говым органом 3, прижим-.The device contains a rope driving pulley 1, an intermediate pulley 2, in contact with the traction body 3, is pressed.

иые ролики 4, оси которых соединены между собой гибким элементом., Один конец гибкого элемента 5 закреплен неподвижно, а второй прикреплен к наружной поверхности полого барабана 6. other rollers 4, the axes of which are interconnected by a flexible element., One end of the flexible element 5 is fixed, and the second is attached to the outer surface of the hollow drum 6.

Барабан 6 установлен свободно на вгшах 7 и 8, установленных в опорах 9 и 10 с возможностью вращени .The drum 6 is mounted freely on the flanges 7 and 8, which are rotatably mounted in the supports 9 and 10.

10ten

Внутри барабана 6 расположен конический дифференциал, состо щий из шестерен 11-13. Шестерни 11 и 1 2 закреплены соответственно на валах 7 и 8. Сателлиты 13 установлены Inside the drum 6 there is a bevel differential consisting of gears 11-13. Gears 11 and 1 2 are fixed respectively on shafts 7 and 8. Satellites 13 are installed

15 свободно на оси 14,прикрепленной к барабану 6.15 freely on the axis 14 attached to the drum 6.

Валы 7 и 8 кинематически св заны цепными передачами 15 и 16 с промежу точным шкивом 2 и с канатоведущим шкивом 1. Передаточные отношени передач 15 и 16 выбраны так, что шестерни 11 и 12 вращаютс с одинаковой угловой скоростью в противоположных направлени х.Shafts 7 and 8 are kinematically connected by chain drives 15 and 16 to intermediate pulley 2 and to traction sheave 1. Gear ratios of gears 15 and 16 are selected so that gears 11 and 12 rotate at the same angular speed in opposite directions.

2525

Устройство работает следующим образом .The device works as follows.

Claims

During normal operation (absence of a pey-type traction unit 3 along pulley 1) (pulley 2 is rotated by a driving 30 with a pulling body 3) with the same angular velocity in opposite directions, gears 13 rotate around axis 14. Axis 14 itself, and hence drum 6 remain stationary in this case. In the event of slippage of the pulling body 3 along the traction sheave 1, the pulling speed 3 becomes less than the circumferential speed of the pulley 1. Consequently, the angular speed of the pulley 2 and the kinematic gear 11 associated with it decrease. At the same time gear 12 associated with pulley 1 remains the same. As a result of the misalignment of the speeds of the gears 11 and 12, the axis 13 with the drum 6 starts to rotate, rolling back along gears 11 and 12. At the same time, the flexible element 5 is wound on the drum 6, bringing the rollers 4 to the surface of the pulley 1 and pressing with to the pulley 1, the rotation of the drum 6 continues until slippage of the pulling member 3 along the surface of the pulley 1 disappears. The speeds of the gears 11 and 12 in this case are again set in magnitude, and the rotation of the drum 6 is eclipsed. When using the proposed device, the optimum amount of clamping of the traction member to the traction roller is automatically ensured, and this happens with the drive of the trailing rider itself. Claim device for monitoring the tension of the flexible body of the lift, containing pressure rollers in contact with the traction sheave, connected by means of a flexible element between itself and the pressing mechanism, in order to simplify the design of the device, the pressure mechanism is provided with an intermediate a pulley and a hollow drum with a tapered differential installed inside it, the input shaft of which is kinematically connected with a traction leader and intermediate pulleys. Sources of information taken into account in the examination 1. USSR author's certificate 639792, cl. B 66 B 5/12, 1978.

Fig. /

figure 1

b} C.

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