SU1312055A1 - Device for stopping hole in place where cargo rope passes through body of hoisting and transportation machine - Google Patents

Abstract

This invention relates to a lifting and transport machinery. The purpose of the invention is to increase reliability and durability. The housing 1, located on the edge of the hole, contains a four-hitch carriage 3 with guides to a chain contour connected to the carriage with a flexible tape 8 fixed to the chains 4. . The nut associated with the lead screw is mounted on the drive roller 13, and the lead screw 15 is fixed to the housing 1 fixedly and provided with a telescopic casing. 6 Il. (Ls phage 2

Description

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The invention relates to hoisting and transport machinery and can be used in the places of the passage of the cargo rope in the hoisting machines.

The purpose of the invention is to increase the reliability of the device and its durability.

Figure 1 shows the device, a longitudinal section; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 2; figure 4 is a section bb In figure 1; in fig. 5 - section G-Gnafig.4; figure 6 - section dD in figure 1.

The device comprises a housing 1 with guides 2, a four-roll carriage 3 connected to two parallel chains 4. The sprockets 5 are mounted on shafts 6, which are fixed in the housing 1. A flexible tape is attached to the carriage 3 by means of special plates 7 to the chains 4 8, the lower branch of which provides the open position of the hole 9 in the housing 1. In the bearings 10 of the support 11 (FIG. 3) fixed to the carriage 3, an axle 12 is installed with a drive roller 13 A nut 14 of the driving screw 15 is located in the slot of the driving roller 13 and fixed from the longitudinal ne the end of the hollow axis 11 and the flange 16 of the telescopic casing section 17, covering the spindle 15. On the carriage 3 is fixed a bracket .18 (figure 2), on the axis 19 of which is installed a double arm 20, one shoulder of the latter interacts with the spring 21 A pressure roller 22 is mounted on the other arm. The lead screw 15 is located inside the hollow shaft 12 and is fixed by means of brackets 23 on the housing 1. The telescopic casing 17 consists of several sections, the inner sections 24 using flanges 16 (Fixed on one side They are on the drive roller 13, the ac friend is on the support 11, the outer sections 25 of the telescopic casing 17 are fixed on brackets 23.

The pearl rope 26, winding or unwinding from the winch drum of a hoisting machine (not shown), rotates the drive roller 13 and the pressure roller 22. The latter, under the influence of a spring 21, pressing the lower shoulder of the two shoulders lever 20,

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creates a constant force of the rollers 13 and 22 with the rope 26, the nut 14, rotating with the drive roller, moves along the spindle

15, the support 11 and the carriage 3 are carried along. (In order to move the carriage 3 in one revolution of the winch drum by one step of cutting the grooves on the drum, it is necessary to ensure that

the ratio of the diameters of the drum and the driving roller was equal to the ratio between the step of cutting grooves on the winch drum to the thread pitch on the drive screw). The top branches of chains 4 with flexible tape 8 fixed on the carriage 3, moving to the right or left, interact with 6 asterisks mounted on the shafts, ensuring the rotation of the flexible tape without kinks. Moving with carriage 3, the bending tape 8 eliminates the penetration of precipitation into the engine room. The inner 24 and intermediate 27 sections of the telescopic casing 17 (FIGS. 5 and 6) are also moved with the carriage 3 to the right or left, and the outer sections 25 mounted on the brackets 23 are always stationary, which together creates protection of the lead screw 15 from external

impacts.

Claims (1)

Invention Formula A device for closing a hole at the point of passage of the load rope through the body of a hoisting-and-transport machine, comprising a box-type body mounted on its upper part for movement along guided in the housing - a carriage kinematically associated with a movable closed infinite flexible body, characterized in that, in order to increase the reliability of the device and its durability, the carriage is equipped with leading and pressure rollers in contact with the cargo cable, while the driving roller made with a nut which is kymetically connected with the lead screw with which the device is equipped, the specified lead screw being fixedly fixed on the body of this device and made with the telesconic body covering it Kim casing, one end is fixedly connected to the device body, and the other with its drive roller. 23 eight 7 FIG. 1 17 2 16 FigZ in-in in-in 14  / 2/7 24 25 FIG. five 23 W / J Editor N.Rogulich Compiled by A. Bondarenko Tehred A. Kravchuk Proofreader S. Cherni Order 1931/22 Circulation 721 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Fi.6